Canvas (Smart GWT LGPL Edition API 5.1p (2022-05-28))

java.lang.Object
- com.google.gwt.user.client.ui.UIObject
- - com.google.gwt.user.client.ui.Widget
  - - com.smartgwt.client.widgets.BaseWidget
    - - com.smartgwt.client.widgets.Canvas

All Implemented Interfaces:

com.google.gwt.event.logical.shared.HasAttachHandlers, com.google.gwt.event.shared.HasHandlers, com.google.gwt.user.client.EventListener, com.google.gwt.user.client.ui.HasVisibility, com.google.gwt.user.client.ui.IsWidget, LogicalStructure, HasClickHandlers, HasDoubleClickHandlers, HasDragMoveHandlers, HasDragRepositionMoveHandlers, HasDragRepositionStartHandlers, HasDragRepositionStopHandlers, HasDragResizeMoveHandlers, HasDragResizeStartHandlers, HasDragResizeStopHandlers, HasDragStartHandlers, HasDragStopHandlers, HasDropHandlers, HasDropMoveHandlers, HasDropOutHandlers, HasDropOverHandlers, HasFocusChangedHandlers, HasHoverHandlers, HasHoverHiddenHandlers, HasKeyDownHandlers, HasKeyPressHandlers, HasMouseDownHandlers, HasMouseMoveHandlers, HasMouseOutHandlers, HasMouseOverHandlers, HasMouseStillDownHandlers, HasMouseUpHandlers, HasMouseWheelHandlers, HasMovedHandlers, HasParentMovedHandlers, HasResizedHandlers, HasRightMouseDownHandlers, HasScrolledHandlers, HasShowContextMenuHandlers, HasVisibilityChangedHandlers

Direct Known Subclasses:

BrowserPlugin, Calendar, DetailViewer, DrawKnob, DrawPane, DynamicForm, EdgedCanvas, EditPane, GridRenderer, HTMLFlow, Layout, LayoutSpacer, PrintCanvas, RangeSlider, Slider, StatefulCanvas, TabSet, TileLayout, WidgetCanvas
```
public class Canvas
extends BaseWidget
implements HasClickHandlers, HasDoubleClickHandlers, HasDragMoveHandlers, HasDragRepositionMoveHandlers, HasDragRepositionStartHandlers, HasDragRepositionStopHandlers, HasDragResizeMoveHandlers, HasDragResizeStartHandlers, HasDragResizeStopHandlers, HasDragStartHandlers, HasDragStopHandlers, HasDropMoveHandlers, HasDropOutHandlers, HasDropOverHandlers, HasFocusChangedHandlers, HasHoverHandlers, HasHoverHiddenHandlers, HasKeyDownHandlers, HasKeyPressHandlers, HasMouseDownHandlers, HasMouseMoveHandlers, HasMouseOutHandlers, HasMouseOverHandlers, HasMouseStillDownHandlers, HasMouseUpHandlers, HasMouseWheelHandlers, HasMovedHandlers, HasDropHandlers, HasParentMovedHandlers, HasResizedHandlers, HasRightMouseDownHandlers, HasScrolledHandlers, HasShowContextMenuHandlers, HasVisibilityChangedHandlers
```
Base class for all Smart GWT visual components (except FormItems).
Canvas provides:
- basic visual lifecycle support - creation and destruction of HTML via draw() and clear(), visibility via show() and hide(), z-layering via bringToFront() and sendToBack().
- consistent cross-browser positioning, sizing and size detection, with automatic compensation for browser CSS behavior differences.
- clipping, scrolling and overflow management of content via overflow
- consistent cross-browser key and mouse events, including mapping touch events to mouse events
- built-in drag and drop capabilities including moving, resizing, drag scrolling and snap-to-grid behavior.
- the ability to either contain HTML content or contain other Canvases, including an edge-based positioning and percent sizing system for children. For more advanced layout capabilities, see Layout.
- various other details like cursors, modal masking, animation, accessibility properties, and settings for automated testing.

Nested Class Summary
- Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject
  com.google.gwt.user.client.ui.UIObject.DebugIdImpl, com.google.gwt.user.client.ui.UIObject.DebugIdImplEnabled

Field Summary
- Fields inherited from class com.smartgwt.client.widgets.BaseWidget
  config, configOnly, factoryCreated, factoryProperties, id, nativeObject, scClassName
- Fields inherited from class com.google.gwt.user.client.ui.UIObject
  DEBUG_ID_PREFIX

Constructor Summary

Constructors
Constructor and Description

Canvas()

Canvas(com.google.gwt.core.client.JavaScriptObject jsObj)

Canvas(java.lang.String id)

Constructors
Constructor and Description
`Canvas()`
`Canvas(com.google.gwt.core.client.JavaScriptObject jsObj)`
`Canvas(java.lang.String id)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`Canvas`	`addChild(Canvas newChild)` Adds newChild as a child of this widget, set up a named object reference (i.e., this[name]) to the new widget if name argument is provided, and draw the child if this widget has been drawn already.
`Canvas`	`addChild(Canvas newChild, java.lang.String name)`
`Canvas`	`addChild(Canvas newChild, java.lang.String name, boolean autoDraw)` Adds newChild as a child of this widget, set up a named object reference (i.e., this[name]) to the new widget if name argument is provided, and draw the child if this widget has been drawn already.
`Canvas`	`addChild(Canvas newChild, java.lang.String name, java.lang.Boolean autoDraw)` Adds newChild as a child of this widget, set up a named object reference (i.e., this[name]) to the new widget if name argument is provided, and draw the child if this widget has been drawn already.
`void`	`addChild(com.google.gwt.user.client.ui.Widget widget)` Adds newChild as a child of this widget, set up a named object reference (i.e., this[name]) to the new widget if name argument is provided, and draw the child if this widget has been drawn already.
`com.google.gwt.event.shared.HandlerRegistration`	`addClickHandler(ClickHandler handler)` Add a click handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDoubleClickHandler(DoubleClickHandler handler)` Add a doubleClick handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDragMoveHandler(DragMoveHandler handler)` Add a dragMove handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDragRepositionMoveHandler(DragRepositionMoveHandler handler)` Add a dragRepositionMove handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDragRepositionStartHandler(DragRepositionStartHandler handler)` Add a dragRepositionStart handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDragRepositionStopHandler(DragRepositionStopHandler handler)` Add a dragRepositionStop handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDragResizeMoveHandler(DragResizeMoveHandler handler)` Add a dragResizeMove handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDragResizeStartHandler(DragResizeStartHandler handler)` Add a dragResizeStart handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDragResizeStopHandler(DragResizeStopHandler handler)` Add a dragResizeStop handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDragStartHandler(DragStartHandler handler)` Add a dragStart handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDragStopHandler(DragStopHandler handler)` Add a dragStop handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDropHandler(DropHandler handler)` Add a drop handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDropMoveHandler(DropMoveHandler handler)` Add a dropMove handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDropOutHandler(DropOutHandler handler)` Add a dropOut handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addDropOverHandler(DropOverHandler handler)` Add a dropOver handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addFocusChangedHandler(FocusChangedHandler handler)` Add a focusChanged handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addHoverHandler(HoverHandler handler)` Add a hover handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addHoverHiddenHandler(HoverHiddenHandler handler)` Add a hoverHidden handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addKeyDownHandler(KeyDownHandler handler)` Add a keyDown handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addKeyPressHandler(KeyPressHandler handler)` Add a keyPress handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addMouseDownHandler(MouseDownHandler handler)` Add a mouseDown handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addMouseMoveHandler(MouseMoveHandler handler)` Add a mouseMove handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addMouseOutHandler(MouseOutHandler handler)` Add a mouseOut handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addMouseOverHandler(MouseOverHandler handler)` Add a mouseOver handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addMouseStillDownHandler(MouseStillDownHandler handler)` Add a mouseStillDown handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addMouseUpHandler(MouseUpHandler handler)` Add a mouseUp handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addMouseWheelHandler(MouseWheelHandler handler)` Add a mouseWheel handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addMovedHandler(MovedHandler handler)` Add a moved handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addParentMovedHandler(ParentMovedHandler handler)` Add a parentMoved handler.
`Canvas`	`addPeer(Canvas newPeer)` Adds newPeer as a peer of this widget (also making it a child of this widget's parent, if any), set up a named object reference (i.e., this[name]) to the new widget if name is provided, and draw the peer if this widget has been drawn already.
`Canvas`	`addPeer(Canvas newPeer, java.lang.String name)`
`Canvas`	`addPeer(Canvas newPeer, java.lang.String name, java.lang.Boolean autoDraw)`
`Canvas`	`addPeer(Canvas newPeer, java.lang.String name, java.lang.Boolean autoDraw, java.lang.Boolean preDraw)` Adds newPeer as a peer of this widget (also making it a child of this widget's parent, if any), set up a named object reference (i.e., this[name]) to the new widget if name is provided, and draw the peer if this widget has been drawn already.
`com.google.gwt.event.shared.HandlerRegistration`	`addResizedHandler(ResizedHandler handler)` Add a resized handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addRightMouseDownHandler(RightMouseDownHandler handler)` Add a rightMouseDown handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addScrolledHandler(ScrolledHandler handler)` Add a scrolled handler.
`com.google.gwt.event.shared.HandlerRegistration`	`addShowContextMenuHandler(ShowContextMenuHandler handler)` Add a showContextMenu handler.
`void`	`addSnapAlignCandidate(Canvas newCandidate)` Add a candidate to `snapAlignCandidates`.
`void`	`addStyleName(java.lang.String style)` Multiple styles are currently not supported.
`com.google.gwt.event.shared.HandlerRegistration`	`addVisibilityChangedHandler(VisibilityChangedHandler handler)` Add a visibilityChanged handler.
`void`	`adjustForContent(boolean immediate)` This method tells a component to adjust for size changes made to content by external code.
`void`	`animateFade(int opacity)` Animate a change in opacity from the widget's current opacity to the specified opacity.
`void`	`animateFade(int opacity, AnimationCallback callback)` Animate a change in opacity from the widget's current opacity to the specified opacity.
`void`	`animateFade(int opacity, AnimationCallback callback, int duration)` Animate a change in opacity from the widget's current opacity to the specified opacity.
`void`	`animateFade(int opacity, AnimationCallback callback, int duration, AnimationAcceleration acceleration)` Animate a change in opacity from the widget's current opacity to the specified opacity.
`void`	`animateFade(java.lang.Integer opacity)` Animate a change in opacity from the widget's current opacity to the specified opacity.
`void`	`animateFade(java.lang.Integer opacity, AnimationCallback callback)`
`void`	`animateFade(java.lang.Integer opacity, AnimationCallback callback, java.lang.Integer duration)`
`void`	`animateFade(java.lang.Integer opacity, AnimationCallback callback, java.lang.Integer duration, AnimationAcceleration acceleration)` Animate a change in opacity from the widget's current opacity to the specified opacity.
`void`	`animateHide(AnimationEffect effect)` Hide a canvas by shrinking it vertically to zero height over a period of time.
`void`	`animateHide(AnimationEffect effect, AnimationCallback callback)` Hide a canvas by shrinking it vertically to zero height over a period of time.
`void`	`animateHide(AnimationEffect effect, AnimationCallback callback, int duration)` Hide a canvas by shrinking it vertically to zero height over a period of time.
`void`	`animateMove(java.lang.Integer left, java.lang.Integer top)` Animate a reposition of this canvas from its current position to the specified position
`void`	`animateMove(java.lang.Integer left, java.lang.Integer top, AnimationCallback callback)`
`void`	`animateMove(java.lang.Integer left, java.lang.Integer top, AnimationCallback callback, java.lang.Integer duration)`
`void`	`animateMove(java.lang.Integer left, java.lang.Integer top, AnimationCallback callback, java.lang.Integer duration, AnimationAcceleration acceleration)` Animate a reposition of this canvas from its current position to the specified position
`void`	`animateRect(java.lang.Integer left, java.lang.Integer top, java.lang.Integer width, java.lang.Integer height)` Animate a reposition / resize of this canvas from its current size and position.
`void`	`animateRect(java.lang.Integer left, java.lang.Integer top, java.lang.Integer width, java.lang.Integer height, AnimationCallback callback)`
`void`	`animateRect(java.lang.Integer left, java.lang.Integer top, java.lang.Integer width, java.lang.Integer height, AnimationCallback callback, java.lang.Integer duration)`
`void`	`animateRect(java.lang.Integer left, java.lang.Integer top, java.lang.Integer width, java.lang.Integer height, AnimationCallback callback, java.lang.Integer duration, AnimationAcceleration acceleration)` Animate a reposition / resize of this canvas from its current size and position.
`void`	`animateResize(java.lang.Integer width, java.lang.Integer height)` Animate a resize of this canvas from its current size to the specified size
`void`	`animateResize(java.lang.Integer width, java.lang.Integer height, AnimationCallback callback)`
`void`	`animateResize(java.lang.Integer width, java.lang.Integer height, AnimationCallback callback, java.lang.Integer duration)`
`void`	`animateResize(java.lang.Integer width, java.lang.Integer height, AnimationCallback callback, java.lang.Integer duration, AnimationAcceleration acceleration)` Animate a resize of this canvas from its current size to the specified size
`void`	`animateScroll(java.lang.Integer scrollLeft, java.lang.Integer scrollTop)` Animate a scroll from the current scroll position to the specified position.
`void`	`animateScroll(java.lang.Integer scrollLeft, java.lang.Integer scrollTop, AnimationCallback callback)`
`void`	`animateScroll(java.lang.Integer scrollLeft, java.lang.Integer scrollTop, AnimationCallback callback, java.lang.Integer duration)`
`void`	`animateScroll(java.lang.Integer scrollLeft, java.lang.Integer scrollTop, AnimationCallback callback, java.lang.Integer duration, AnimationAcceleration acceleration)` Animate a scroll from the current scroll position to the specified position.
`void`	`animateScroll(int scrollLeft, int scrollTop, AnimationCallback callback)` Animate a scroll from the current scroll position to the specified position.
`void`	`animateScroll(int scrollLeft, int scrollTop, AnimationCallback callback, int duration)` Animate a scroll from the current scroll position to the specified position.
`void`	`animateShow(AnimateShowEffect effect)` Show a canvas by growing it vertically to its fully drawn height over a period of time.
`void`	`animateShow(AnimateShowEffect effect, AnimationCallback callback)` Show a canvas by growing it vertically to its fully drawn height over a period of time.
`void`	`animateShow(AnimateShowEffect effect, AnimationCallback callback, int duration)` Show a canvas by growing it vertically to its fully drawn height over a period of time.
`void`	`animateShow(AnimationEffect effect)` Show a canvas by growing it vertically to its fully drawn height over a period of time.
`void`	`animateShow(AnimationEffect effect, AnimationCallback callback)` Show a canvas by growing it vertically to its fully drawn height over a period of time.
`void`	`animateShow(AnimationEffect effect, AnimationCallback callback, int duration)` Show a canvas by growing it vertically to its fully drawn height over a period of time.
`static <T extends Canvas> T`	`asSGWTComponent(com.google.gwt.core.client.JavaScriptObject jsObj)` Returns the existing SGWT widget, or creates and returns one if none exist, associated with the supplied `JavaScriptObject`.
`void`	`blur()` If this canvas has keyboard focus, blur it.
`void`	`bringToFront()` Puts this widget at the top of the stacking order, so it appears in front of all other widgets in the same parent.
`static void`	`changeAutoChildDefaults(java.lang.String autoChildName, Canvas defaults)` Changes the defaults for Canvas AutoChildren named `autoChildName`.
`static void`	`changeAutoChildDefaults(java.lang.String autoChildName, FormItem defaults)` Changes the defaults for FormItem AutoChildren named `autoChildName`.
`void`	`clear()` Remove all visual representation of a Canvas, including all child or member Canvases, or managed top-level components such as the ListGrid drop location indicator.
`java.lang.Boolean`	`clickMaskUp()` Determines whether a clickmask is showing
`java.lang.Boolean`	`clickMaskUp(java.lang.String ID)` Determines whether a clickmask is showing
`java.lang.Boolean`	`contains(Canvas canvas)` Returns true if element is a descendant of this widget (i.e., exists below this widget in the containment hierarchy); and false otherwise.
`java.lang.Boolean`	`contains(Canvas canvas, java.lang.Boolean testSelf)` Returns true if element is a descendant of this widget (i.e., exists below this widget in the containment hierarchy); and false otherwise.
`java.lang.Boolean`	`containsEvent()` Return true if the last event's mouse coordinates are within the bounds of this component.
`java.lang.Boolean`	`containsFocus()` Returns true if the keyboard focus is in this Canvas or any child of this Canvas.
`java.lang.Boolean`	`containsPoint(int x, int y)` Return whether or not this object contains the specified global (x,y) coordinates.
`java.lang.Boolean`	`containsPoint(int x, int y, java.lang.Boolean withinViewport)` Return whether or not this object contains the specified global (x,y) coordinates.
`protected com.google.gwt.core.client.JavaScriptObject`	`create()`
`void`	`deparent()` Remove this canvas from its parent if it has one.
`void`	`depeer()` Make this Canvas no longer a peer of its master
`void`	`disable()` Disables this widget and any children and peers of this widget.
`void`	`enable()` Enables this widget and any children / peers of this widget.
`java.lang.Boolean`	`encloses(Canvas other)` Returns true if the rectangle of this widget encloses the rectangle of the specified widget.
`void`	`focus()` If this canvas can accept focus, give it keyboard focus.
`void`	`focusInNextTabElement()` Shifts focus to the next focusable element after this one.
`void`	`focusInPreviousTabElement()` Shifts focus to the previous focusable element before this one.
`int`	`getAbsoluteLeft()` This method is similar to `getPageLeft()`.
`int`	`getAbsoluteTop()` This method is similar to `getPageTop()`.
`java.lang.String`	`getAccessKey()` If specified this governs the HTML accessKey for the widget.
`java.lang.Boolean`	`getAlwaysShowScrollbars()` On `touch devices` that support native touch scrolling, if `showCustomScrollbars` is `true` and touch scrolling has not been disabled by the `useTouchScrolling` and/or `disableTouchScrollingForDrag` settings, should custom scrollbars and native touch scrolling be enabled for this component? If `false` or unset, then only native touch scrolling will be enabled.
`AnimationAcceleration`	`getAnimateAcceleration()` Default acceleration effect to apply to all animations on this Canvas.
`java.lang.Integer`	`getAnimateFadeTime()` Default time for performing an animated fade.
`AnimationAcceleration`	`getAnimateHideAcceleration()` Default acceleration function for performing an animated hide.
`java.lang.Integer`	`getAnimateHideTime()` Default time for performing an animated hide.
`AnimationAcceleration`	`getAnimateMoveAcceleration()` Default acceleration effect for performing an animated move.
`java.lang.Integer`	`getAnimateMoveTime()` Default time for performing an animated move.
`AnimationAcceleration`	`getAnimateRectAcceleration()` Default acceleration function for performing an animated move and resize.
`java.lang.Integer`	`getAnimateRectTime()` Default time for performing an animated setRect.
`AnimationAcceleration`	`getAnimateResizeAcceleration()` Default acceleration function for performing an animated resize.
`java.lang.Integer`	`getAnimateResizeTime()` Default time for performing an animated resize.
`AnimationAcceleration`	`getAnimateScrollAcceleration()` Default acceleration function for performing an animated scroll.
`java.lang.Integer`	`getAnimateScrollTime()` Default time for performing an animated scroll.
`AnimationAcceleration`	`getAnimateShowAcceleration()` Default acceleration function for performing an animated show.
`AnimationEffect`	`getAnimateShowEffect()` Default animation effect to use if `Canvas#animateShow()` is called without an explicit effect parameter.
`java.lang.Integer`	`getAnimateShowTime()` Default time for performing an animated show.
`int`	`getAnimateTime()` Default total duration of animations.
`java.lang.String`	`getAppImgDir()` Default directory for app-specific images, relative to the Page-wide `appImgDir`.
`java.lang.String`	`getAriaRole()` ARIA role of this component.
`java.lang.Boolean`	`getAutoDraw()` If true, this canvas will draw itself immediately after it is created.
`java.lang.Boolean`	`getAutoMaskComponents()` Deprecated. As of Smart GWT version 10.0, deprecated in favor of `EditProxy.autoMaskChildren`
`java.lang.Boolean`	`getAutoShowParent()` If set to true, the widget's parent (if any) will automatically be shown whenever the widget is shown.
`java.lang.String`	`getBackgroundColor()` The background color for this widget.
`java.lang.String`	`getBackgroundImage()` URL for a background image for this widget (corresponding to the CSS "background-image" attribute).
`java.lang.String`	`getBackgroundPosition()` Specifies how the background image should be positioned on the widget.
`BackgroundRepeat`	`getBackgroundRepeat()` Specifies how the background image should be tiled if this widget is larger than the image.
`java.lang.String`	`getBorder()` Set the CSS border of this component, as a CSS string including border-width, border-style, and/or color (eg "2px solid blue").
`int`	`getBottom()` Return the bottom coordinate of this object as rendered, relative to its enclosing context, in pixels.
`static Canvas`	`getById(java.lang.String ID)` Retrieve a Canvas by its global `ID`.
`static Canvas`	`getByJSObject(com.google.gwt.core.client.JavaScriptObject jsObj)` Retrieve a Canvas from its `JavaScriptObject`.
`Canvas`	`getByLocalId(java.lang.String ID)` Retrieve a child of this Canvas by it's local ID.
`java.lang.Boolean`	`getCanAcceptDrop()` Indicates that this object can receive dropped widgets (i.e.
`java.lang.Boolean`	`getCanDrag()` Indicates whether this widget can initiate custom drag-and-drop operations (other than reposition or resize).
`java.lang.Boolean`	`getCanDragReposition()` Indicates whether this widget can be moved by a user of your application by simply dragging with the mouse.
`java.lang.Boolean`	`getCanDragResize()` Indicates whether this widget can be resized by dragging on the edges and/or corners of the widget with the mouse.
`boolean`	`getCanDragScroll()` If this Canvas is canAcceptDrop:true, when the user drags a droppable widget over an edge of the widget, should we scroll to show the rest of the widget's content? Returned from canvas.shouldDragScroll() if there are scrollbars.
`java.lang.Boolean`	`getCanDrop()` Indicates that this object can be dropped on top of other widgets.
`java.lang.Boolean`	`getCanDropBefore()` When explicitly set to false, disallows drop before this member in the Layout.
`java.lang.Boolean`	`getCanFocus()` Can this widget be allowed to become the target of keyboard events?
`java.lang.Boolean`	`getCanHover()` Will this Canvas fire hover events when the user hovers over it, or one of its children?
`java.lang.Boolean`	`getCanSelectText()` Whether native drag selection of contained text is allowed within this Canvas.
`Canvas`	`getCanvasAutoChild(java.lang.String autoChildName)` Returns the `Canvas` AutoChild named `autoChildName` if already created.
`CanvasItem`	`getCanvasItem()` If this canvas is being displayed in a `CanvasItem`, this property will be set to point at the item.
`Canvas[]`	`getChildren()` Array of all Canvii that are immediate children of this Canvas.
`java.lang.Boolean`	`getChildrenResizeSnapAlign()` Flag to disable snapping to alignment when children of this Canvas are resized
`java.lang.Boolean`	`getChildrenSnapAlign()` If enabled while `childrenSnapToGrid` is enabled, children dragged within this Canvas will also snap to positions where their edges or center lines would be aligned with the edges or centers of other components, and lines will be shown to point out the possible alignment (with appearance controlled by `snapAlignCenterLineStyle` and `snapAlignEdgeLineStyle` respectively.
`java.lang.Boolean`	`getChildrenSnapCenterAlign()` See `childrenSnapAlign`.
`java.lang.Boolean`	`getChildrenSnapEdgeAlign()` See `childrenSnapAlign`.
`java.lang.Boolean`	`getChildrenSnapResizeToGrid()` If true, causes this canvas's children to snap to its grid when resizing.
`java.lang.Boolean`	`getChildrenSnapToGrid()` If true, causes this canvas's children to snap to its grid when dragging.
`java.lang.String`	`getClassName()` Returns the javascript class name.
`Canvas`	`getComponentMask()` Automatically generated mask canvas displayed when `showComponentMask()` is called.
`Canvas`	`getComponentMaskDefaults()` Defaults for the `componentMask` autoChild.
`com.google.gwt.user.client.Element`	`getContentElement()` Returns the DOM element for this Canvas which contains the `contents`, or for `parent components`, the DOM elements for any drawn children.
`java.lang.String`	`getContents()` The contents of a canvas or label widget.
`Menu`	`getContextMenu()` Context menu to show for this object, an instance of the Menu widget.
`Cursor`	`getCursor()` Specifies the cursor image to display when the mouse pointer is over this widget.
`java.lang.String`	`getDataPath()` A dataPath may be specified on any canvas.
`int`	`getDefaultHeight()` For custom components, establishes a default height for the component.
`int`	`getDefaultWidth()` For custom components, establishes a default width for the component.
`java.lang.Boolean`	`getDestroyed()` If this property is set to `true`, the `destroy()` method has been called on this canvas.
`java.lang.Boolean`	`getDestroying()` This property is set to true when the `destroy()` method is called on a widget.
`boolean`	`getDisabled()` If set to true, the widget will be disabled.
`Cursor`	`getDisabledCursor()` Specifies the cursor image to display when the mouse pointer is over this widget if this widget is disabled.
`java.lang.Boolean`	`getDisableTouchScrollingForDrag()` Disables `useTouchScrolling` whenever a built-in drag operation has been enabled which is known to be non-functional if touch scrolling is enabled.
`int`	`getDoubleClickDelay()` Amount of time (in milliseconds) between which two clicks are considered a single click
`DragAppearance`	`getDragAppearance()` Visual appearance to show when the object is being dragged.
`DragIntersectStyle`	`getDragIntersectStyle()` This indicates how the system will test for droppable targets: either by intersection with the mouse or intersection with the rectangle of the dragMoveTarget.
`DragMaskType`	`getDragMaskType()` This property controls what kind of mask is used in case `useDragMask` is enabled.
`java.lang.Integer`	`getDragOpacity()` If this widget has dragAppearance `"target"`, this value specifies the opacity to render the target while it is being dragged.
`DragAppearance`	`getDragRepositionAppearance()` If `canDragReposition` is true, this attributes specifies the visual appearance to show during drag reposition.
`Cursor`	`getDragRepositionCursor()` Cursor to switch to if the mouse is over a widget that is drag repositionable.
`DragAppearance`	`getDragResizeAppearance()` If `canDragResize` is true, this attributes specifies the visual appearance to show during drag resize.
`int`	`getDragScrollDelay()` If this widget supports drag-scrolling, This property specifies how many ms the user must hover over the drag-scroll threshold before scrolling begins.
`int`	`getDragStartDistance()` Number of pixels the cursor needs to move before the EventHandler starts a drag operation.
`Canvas`	`getDragTarget()` A different widget that should be actually dragged when dragging initiates on this widget.
`java.lang.String`	`getDragType()` Sets a `dragType` for this widget used, to be compared to `dropTypes` on possible drop target widgets.
`java.lang.String[]`	`getDropTypes()` When a drag and drop interaction occurs, if a `dragType` is configured on the source widget, it is compared to the `dropTypes` configured on the target widget, and a drop is only allowed if the `dragType` is listed in the target widget's `dropTypes` array.
`java.lang.String`	`getDropTypesAsString()` When a drag and drop interaction occurs, if a `dragType` is configured on the source widget, it is compared to the `dropTypes` configured on the target widget, and a drop is only allowed if the `dragType` is listed in the target widget's `dropTypes` array.
`java.lang.Boolean`	`getDynamicContents()` Dynamic contents allows the contents string to be treated as a simple, but powerful template.
`java.lang.String`	`getEdgeBackgroundColor()` Background color for the EdgedCanvas created to decorate this component.
`java.lang.String`	`getEdgeCenterBackgroundColor()` Background color for the center section only.
`java.lang.String`	`getEdgeImage()` Base name of images for edges.
`int`	`getEdgeMarginSize()` How far into the edge of an object do we consider the "edge" for drag resize purposes?
`java.lang.Integer`	`getEdgeOffset()` Amount the contained Canvas should be offset.
`java.lang.Integer`	`getEdgeOpacity()` Opacity of the edges.
`java.lang.Boolean`	`getEdgeShowCenter()` Whether to show media in the center section, that is, behind the decorated Canvas.
`int`	`getEdgeSize()` Size in pixels for corners and edges
`EditNode`	`getEditNode()` The component's `EditNode` for a component that has been created by a `Palette` from a `PaletteNode`.
`EditProxy`	`getEditProxy()` An `EditProxy` controls the behaviors of a component when it is placed into `editing mode`.
`java.lang.String`	`getEditProxyConstructor()` Default class used to construct the `EditProxy` for this component when the component is `first placed into edit mode`.
`com.google.gwt.user.client.Element`	`getElement()` Normal usage of SmartGWT is to call draw() on SmartGWT widgets, not to use use RootPanel.add().
`com.google.gwt.user.client.Element`	`getElement(boolean allowPreRender)`
`static EdgeName`	`getEventEdge()` Check if an event is within an "edge" of this canvas.
`static EdgeName`	`getEventEdge(EdgeName... edgeMask)` Check if an event is within an "edge" of this canvas.
`int`	`getExtraSpace()` When this Canvas is included as a member in a Layout, extra blank space that should be left after this member in a Layout.
`java.lang.String`	`getFacetId()` If a Canvas is dropped onto a `CubeGrid`, and it has a `facetId` property specified then the Cube treats this as adding that facetId at the drop location.
`FormItem`	`getFormItemAutoChild(java.lang.String autoChildName)` Returns the `FormItem` AutoChild named `autoChildName` if already created.
`java.lang.String`	`getFullDataPath()` Returns a fully qualified `DataPath` for this canvas.
`java.lang.String`	`getGroupBorderCSS()` Sets the style for the grouping frame around the canvas.
`java.lang.String`	`getGroupLabelBackgroundColor()` If set, the background color of the grouping label.
`java.lang.String`	`getGroupLabelStyleName()` Sets the style for the grouping label.
`java.lang.String`	`getGroupTitle()` The title/label for the grouping.
`java.lang.Integer`	`getHeight()` Size for this component's vertical dimension.
`java.lang.String`	`getHeightAsString()`
`boolean`	`getHideUsingDisplayNone()` When this widget is hidden (see `visibility` and `hide()`), should display:none be applied to the `outer element`?
`Alignment`	`getHoverAlign()` If `this.showHover` is true, this property can be used to customize the alignment of content in the hover canvas.
`java.lang.Boolean`	`getHoverAutoDestroy()` If `this.showHover` is true and `getHoverComponent()` is implemented, should the hoverCanvas returned from it be automatically destroyed when it is hidden?
`Canvas`	`getHoverComponent()` When `showHoverComponents` is true, this method is called to get the component to show as a hover for this Canvas.
`int`	`getHoverDelay()` If `this.canHover` is true, how long should the mouse be kept over this widget before the hover event is fired
`java.lang.Integer`	`getHoverHeight()` If `this.showHover` is true, this property can be used to customize the height of the hover canvas shown.
`java.lang.String`	`getHoverHTML()` If `this.showHover` is true, when the user holds the mouse over this Canvas for long enough to trigger a hover event, a hover canvas is shown by default.
`java.lang.Boolean`	`getHoverMoveWithMouse()` If `this.showHover` is true, should this widget's hover canvas be moved with the mouse while visible?
`java.lang.Integer`	`getHoverOpacity()` If `this.showHover` is true, should the hover canvas be shown with opacity other than 100?
`java.lang.String`	`getHoverStyle()` If `this.showHover` is true, this property can be used to specify the css style to apply to the hover canvas.
`VerticalAlignment`	`getHoverVAlign()` If `this.showHover` is true, this property can be used to customize the vertical alignment of content in the hover canvas.
`java.lang.Integer`	`getHoverWidth()` If `this.showHover` is true, this property can be used to customize the width of the hover canvas shown.
`java.lang.Boolean`	`getHoverWrap()` If `this.showHover` is true, this property can be used to customize the whether content in the hover canvas is displayed in a single line, or wraps.
`int`	`getHSnapOrigin()` Get an offset to be used when calculating snap positioning.
`int`	`getHSnapOrigin(Canvas snapChild)` Get an offset to be used when calculating snap positioning.
`int`	`getHSnapPosition(int coordinate)` Override this method to provide a custom snap-to grid.
`int`	`getHSnapPosition(int coordinate, java.lang.String direction)` Override this method to provide a custom snap-to grid.
`com.google.gwt.user.client.Element`	`getHtmlElement()` If specified as a pointer to an HTML element present in the DOM, this canvas will be rendered inside that element on `draw()`.
`DrawPosition`	`getHtmlPosition()` If `htmlElement` is specified, this attribute specifies the position where the canvas should be inserted relative to the `htmlElement` in the DOM.
`com.google.gwt.user.client.Element`	`getImage(java.lang.String identifier)` Retrieve a native image element by name.
`static java.lang.String`	`getImgURL(java.lang.String URL)` Return the full URL for an image to be drawn in this canvas.
`static java.lang.String`	`getImgURL(java.lang.String URL, java.lang.String imgDir)` Return the full URL for an image to be drawn in this canvas.
`int`	`getInnerContentHeight()` Returns the amount of space available for interior content (or relatively positioned child widget(s)) without introducing clipping, scrolling or overflow. This is the space within the viewport of the widget (not including padding, and excluding margins, borders or scrollbars) rendered at its specified size.
`int`	`getInnerContentWidth()` Returns the amount of space available for interior content (or relatively positioned child widget(s)) without introducing clipping, scrolling or overflow. This is the space within the viewport of the widget (not including padding, and excluding margins, borders or scrollbars) rendered at its specified size.
`int`	`getInnerHeight()` Returns the amount of space available for (an) absolutely positioned child widget(s) or absolutely positioned HTML content, without introducing clipping, scrolling or overflow.
`int`	`getInnerWidth()` Returns the amount of space available for absolutely positioned child widget(s) or absolutely positioned HTML content, without introducing clipping, scrolling or overflow.
`boolean`	`getIsGroup()` Should a grouping frame be shown around this canvas.
`java.lang.Boolean`	`getIsPrinting()` This boolean flag will be set to true by framework logic while generating print HTML for this widget as a result to a call to `showPrintPreview()` (or just `getPrintHTML()`).
`java.lang.Boolean`	`getIsSnapAlignCandidate()` Flag to disable snapping to alignment against this Canvas when other Canvases dragged into the same parent when `childrenSnapAlign` is enabled on this Canvas' parent.
`java.lang.Boolean`	`getKeepInParentRect()` Constrains drag-resizing and drag-repositioning of this canvas to either the rect of its parent (if set to true) or an arbitrary rect based its parent (if set to a [Left,Top,Width,Height] rect array).
`Alignment`	`getLayoutAlign()` When this Canvas is included as a member in a Layout, layoutAlign controls alignment on the breadth axis of the layout.
`java.lang.Integer`	`getLeavePageSpace()` If set, overrides the global `defaultPageSpace`.
`int`	`getLeft()` Number of pixels the left side of the widget is offset to the right from its default drawing context (either its parent's topleft corner, or the document flow, depending on the value of the `position` property).
`java.lang.String`	`getLeftAsString()` Number of pixels the left side of the widget is offset to the right from its default drawing context (either its parent's topleft corner, or the document flow, depending on the value of the `position` property).
`LocatorStrategy`	`getLocateChildrenBy()` Strategy to use when locating children in this canvas from an autoTest locator string.
`LocatorTypeStrategy`	`getLocateChildrenType()` `LocatorTypeStrategy` to use when finding children within this canvas.
`LocatorStrategy`	`getLocatePeersBy()` Strategy to use when locating peers of this canvas from an autoTest locator string.
`LocatorTypeStrategy`	`getLocatePeersType()` `LocatorTypeStrategy` to use when finding peers of this canvas.
`com.smartgwt.logicalstructure.core.LogicalStructureObject`	`getLogicalStructure()` Getter implementing the `LogicalStructure` interface, which supports Eclipse's logical structure debugging facility.
`java.lang.Integer`	`getMargin()` Set the CSS Margin, in pixels, for this component.
`Canvas`	`getMasterCanvas()` Returns this canvas's "master" (the canvas to which it was added as a peer), if any.
`Canvas`	`getMasterElement()` Deprecated. In favor or `getMasterCanvas()` as of Smart GWT release 9.1
`java.lang.Boolean`	`getMatchElement()` If `htmlElement` is specified, should this canvas initially be drawn at the same dimensions as the htmlElement? Note: setting this property will not force the canvas to resize if the element subsequently resizes (for example due to page reflow).
`int`	`getMaxHeight()` Maximum height that this Canvas can be resized to.
`int`	`getMaxWidth()` Maximum width that this Canvas can be resized to.
`java.lang.String`	`getMenuConstructor()` Default class used to construct menus created by this component, including context menus.
`int`	`getMinHeight()` Minimum height that this Canvas can be resized to by a user.
`int`	`getMinNonEdgeSize()` If the widget has drag resize configured on one or more of it's edges, and the edgeMarginSize is large enough that the remaining space is less than `minNonEdgeSize`, the edgeMarginSize will be reduced such that the non-edge part of the widget is at least 1/3 of the total space (with two draggable edges) or half of it (with one draggable edge).
`int`	`getMinWidth()` Minimum width that this Canvas can be resized to.
`double`	`getMomentumScrollMinSpeed()` The minimum speed in pixels per second that must be reached for momentum scrolling to kick in.
`int`	`getMouseStillDownDelay()` Amount of time (in milliseconds) between repeated 'mouseStillDown' events for this canvas.
`int`	`getMouseStillDownInitialDelay()` Amount of time (in milliseconds) before mouseStillDown events start to be fired repeatedly for this canvas.
`int`	`getNextZIndex()` get the next zIndex for the next item to be drawn.
`java.lang.Boolean`	`getNoDoubleClicks()` If true, this canvas will receive all mouse-clicks as single `click` events rather than as `doubleClick` events.
`Cursor`	`getNoDropCursor()` Specifies the cursor image to display when the user drags a droppable canvas over this if it is not a valid drop target for the event and `showNoDropIndicator` is true.
`int`	`getOffsetHeight()`
`int`	`getOffsetWidth()`
`int`	`getOffsetX()` Return the X-coordinate of the last event relative to the left edge of the content of this Canvas. NOTE: To get a coordinate relative to the viewport of this Canvas, subtract this.getScrollLeft()
`int`	`getOffsetY()` Return the Y-coordinate of the last event, relative to the top edge of the content of this Canvas. NOTE: To get a coordinate relative to the viewport of this Canvas, subtract this.getScrollTop()
`java.lang.Integer`	`getOpacity()` Renders the widget to be partly transparent.
`static Canvas`	`getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)`
`com.google.gwt.user.client.Element`	`getOuterElement()` Returns the outer DOM element of this Canvas.
`Overflow`	`getOverflow()` Controls what happens when the drawn size of the content of a Canvas is either greater or smaller than the specified size of the Canvas.
`java.lang.Integer`	`getPadding()` Set the CSS padding of this component, in pixels.
`int`	`getPageBottom()` Return the page-relative bottom coordinate of this object, in pixels.
`int`	`getPageLeft()` Returns the page-relative left coordinate of the widget on the page, in pixels.
`Rectangle`	`getPageRect()`
`int`	`getPageRight()` Return the page-relative right coordinate of this object, in pixels.
`int`	`getPageTop()` Returns the page-relative top coordinate of the widget on the page, in pixels
`Canvas`	`getPanelContainer()` Returns this Canvas's "panel container".
`Canvas`	`getParentCanvas()` This Canvas's immediate parent, if any.
`Canvas`	`getParentElement()` Deprecated. As of Smartclient version 9.1, deprecated in favor of `parentCanvas` and `getParentCanvas()`
`Canvas[]`	`getPeers()` Array of all Canvii that are peers of this Canvas.
`PercentBoxModel`	`getPercentBox()` Governs the model to be used when sizing canvases with percentage width or height, or positioning widgets with a specified `snapTo`.
`Canvas`	`getPercentSource()` If this canvas has its size specified as a percentage, this property allows the user to explicitly designate another canvas upon which sizing will be based.
`Positioning`	`getPosition()` Absolute or relative, corresponding to the "absolute" (with respect to parent) or "relative" (with respect to document flow) values for the CSS position attribute.
`java.lang.String`	`getPrefix()`
`java.lang.Boolean`	`getPrintChildrenAbsolutelyPositioned()` Should this canvas print its children absolutely positioned when generating `printable HTML`.
`static void`	`getPrintHTML(java.lang.Object[] components, PrintProperties printProperties, PrintHTMLCallback callback)` Returns print-formatted HTML for the specified list of components.
`java.lang.String`	`getPrintHTML(PrintProperties printProperties, PrintHTMLCallback callback)` Retrieves printable HTML for this component and all printable subcomponents.
`java.lang.String`	`getPrompt()` Prompt displayed in hover canvas if `showHover` is true.
`java.lang.String[]`	`getProportionalResizeModifiers()` If `proportionalResizing` is set to `ProportionalResizeMode.MODIFIER` or `ProportionalResizeMode.MODIFIER_OFF` then proportional resizing of the DrawItem is activated or deactivated, respectively, whenever at least one key in this set of modifier keys is pressed.
`ProportionalResizeMode`	`getProportionalResizing()` If `canDragResize` is true, this property specifies the conditions for when proportional resizing is used.
`Rectangle`	`getRect()` Get all four coordinates, relative to the enclosing context, at one.
`java.lang.Boolean`	`getRedrawOnResize()` Should this element be redrawn in response to a resize?
`java.lang.String`	`getResizeBarTarget()` When this Canvas is included as a member in a Layout, and `showResizeBar` is set to `true` so that a resizeBar is created, `resizeBarTarget:"next"` can be set to indicate that the resizeBar should resize the next member of the layout rather than this one.
`EdgeName[]`	`getResizeFrom()` When drag resizing is enabled via `canDragResize`, restricts resizes to only certain edges or corners.
`int`	`getRight()` Return the right coordinate of this object as rendered, relative to its enclosing context, in pixels.
`int`	`getScrollbarSize()` How thick should we make the scrollbars for this canvas.
`int`	`getScrollBottom()` Returns the scrollTop required to scroll vertically to the end of this widget's content.
`int`	`getScrollHeight()` Returns the scrollable height of the widget's contents, including children, ignoring clipping.
`int`	`getScrollLeft()` Get the number of pixels this Canvas is scrolled from its left edge.
`int`	`getScrollRight()` Returns the scrollLeft required to scroll horizontally to the end of this widget's content.
`int`	`getScrollTop()` Get the number of pixels this Canvas is scrolled from its top edge.
`int`	`getScrollWidth()` Returns the scrollable width of the widget's contents, including children, ignoring clipping.
`int`	`getShadowDepth()` Depth of the shadow, or the virtual height above the page of the widget throwing the shadow.
`java.lang.String`	`getShadowImage()` Base name of the series of images for the sides, corners, and center of the shadow.
`java.lang.Integer`	`getShadowOffset()` Offset of the shadow.
`java.lang.Integer`	`getShadowSoftness()` Softness, or degree of blurring, of the shadow.
`java.lang.Boolean`	`getShouldPrint()` Whether this canvas should be included in a printable view.
`boolean`	`getShowCustomScrollbars()` Whether to use the browser's native scrollbars or Smart GWT-based scrollbars.
`java.lang.Boolean`	`getShowDragShadow()` When this widget is dragged, if its dragAppearance is `"target"`, should we show a shadow behind the canvas during the drag.
`java.lang.Boolean`	`getShowEdges()` Whether an `EdgedCanvas` should be used to show image-based edges around this component.
`java.lang.Boolean`	`getShowHover()` If `this.canHover` is true, should we show the global hover canvas by default when the user hovers over this canvas?
`java.lang.Boolean`	`getShowHoverComponents()` When set to true, shows a widget hovering at the mouse point instead of the builtin hover label.
`java.lang.Boolean`	`getShowResizeBar()` When this Canvas is included as a member in a `Layout`, whether a resizeBar should be shown after this member in the layout, to allow it to be resized.
`java.lang.Boolean`	`getShowShadow()` Whether to show a drop shadow for this Canvas.
`java.lang.Boolean`	`getShowSnapGrid()` Whether to show a snap grid for this Canvas.
`boolean`	`getShrinkElementOnHide()` This is an advanced setting.
`java.lang.String`	`getSkinImgDir()` Default directory for skin images (those defined by the class), relative to the Page-wide `skinDir`.
`Canvas[]`	`getSnapAlignCandidates()` When `childrenSnapAlign` is enabled, list of candidates to check for alignment.
`java.lang.String`	`getSnapAlignCenterLineStyle()` CSS border declaration used for the line shown to indicate snapping to a center line when `childrenSnapAlign` is set.
`java.lang.String`	`getSnapAlignEdgeLineStyle()` CSS border declaration used for the line shown to indicate snapping to a edge line when `childrenSnapAlign` is set.
`java.lang.String`	`getSnapAxis()` Describes which axes to apply snap-to-grid to.
`java.lang.String`	`getSnapEdge()` If `snapTo` is defined to this widget, this property can be used to define which edge of this widget should be snapped to an edge of the master or parent element.
`java.lang.String`	`getSnapHDirection()` The horizontal snap direction.
`int`	`getSnapHGap()` The horizontal grid size to use, in pixels, when snap-to-grid is enabled.
`java.lang.Integer`	`getSnapOffsetLeft()` If `snapTo` is defined for this widget, this property can be used to specify an offset in px or percentage for the left coordinate of this widget.
`java.lang.Integer`	`getSnapOffsetTop()` If `snapTo` is defined for this widget, this property can be used to specify an offset in px or percentage for the top coordinate of this widget.
`java.lang.Boolean`	`getSnapOnDrop()` When this canvas is dropped onto an object supporting snap-to-grid, should it snap to the grid (true, the default) or just drop wherever the mouse is (false).
`static Point`	`getSnapPosition(Canvas target, java.lang.String snapTo, Canvas snapper)` Return the position for `snapper` to be placed in order to "snap to" an edge or corner of `target`, in the same sense as `snapTo`.
`static Point`	`getSnapPosition(Canvas target, java.lang.String snapTo, Canvas snapper, java.lang.String snapEdge)` Return the position for `snapper` to be placed in order to "snap to" an edge or corner of `target`, in the same sense as `snapTo`.
`java.lang.Boolean`	`getSnapResizeToAlign()` Flag to disable snapping to alignment when this Canvas is resized.
`java.lang.Boolean`	`getSnapResizeToGrid()` Causes this canvas to snap to its parent's grid when resizing.
`java.lang.String`	`getSnapTo()` Position this widget such that it is aligned with ("snapped to") an edge of its `master` (if specified), or its `parent canvas`.
`java.lang.Boolean`	`getSnapToAlign()` Flag to disable snapping to alignment when this Canvas is dragged when `childrenSnapAlign` is enabled on this Canvas' parent.
`java.lang.Boolean`	`getSnapToCenterAlign()` Flag to disable snapping to center alignment when this Canvas is dragged when `childrenSnapAlign` is enabled on this Canvas' parent.
`java.lang.Boolean`	`getSnapToEdgeAlign()` Flag to disable snapping to edge alignment when this Canvas is dragged when `childrenSnapAlign` is enabled on this Canvas' parent.
`java.lang.Boolean`	`getSnapToGrid()` Causes this canvas to snap to its parent's grid when dragging.
`java.lang.String`	`getSnapVDirection()` The vertical snap direction.
`int`	`getSnapVGap()` The vertical grid size to use, in pixels, when snap-to-grid is enabled.
`java.lang.String`	`getStyleName()` The CSS class applied to this widget as a whole.
`java.lang.Integer`	`getTabIndex()` If specified this governs the tabIndex of the widget in the page's tab order.
`protected Canvas`	`getTestInstance()`
`java.lang.String`	`getTitle()` Synonym for `getPrompt()`
`java.lang.String`	`getTooltip()` Synonym for `getPrompt()`
`int`	`getTop()` Number of pixels the top of the widget is offset down from its default drawing context (either its parent's top-left corner, or the document flow, depending on the value of the `position` property).
`java.lang.String`	`getTopAsString()` Number of pixels the top of the widget is offset down from its default drawing context (either its parent's top-left corner, or the document flow, depending on the value of the `position` property).
`Canvas`	`getTopElement()` The top-most Canvas (i.e., not a child of any other Canvas), if any, in this widget's containment hierarchy.
`java.lang.Boolean`	`getUseBackMask()` In earlier versions of Internet Explorer (pre IE9), a native limitation exists whereby if HTML elements are overlapping on the page, certain elements can appear to "burn through" elements in the same position with a higher z-index.
`boolean`	`getUseDragMask()` This flag controls whether we register the component as a maskable item with the EventHandler.
`java.lang.Boolean`	`getUseNativeDrag()` If set, native HTML5 drag and drop will be used for all drags initiated on this widget (on browsers where this is supported).
`java.lang.Boolean`	`getUseOpacityFilter()` Configures where the Opacity filter is used for IE6-8.
`java.lang.Boolean`	`getUseTouchScrolling()` On `touch devices`, if this `Canvas` can be scrolled, should touch-dragging the content area result in scrolling? Set to `false` if touch-dragging should not cause scrolling.
`ValuesManager`	`getValuesManager()` `ValuesManager` for managing values displayed in this component.
`int`	`getViewportHeight()` Returns the height of the viewport onto the scrollable content.
`int`	`getViewportWidth()` Returns the width of the viewport onto the scrollable content.
`Visibility`	`getVisibility()` Controls widget visibility when the widget is initialized.
`int`	`getVisibleHeight()` Return the visible height of the Canvas.
`int`	`getVisibleWidth()` Return the visible width of the Canvas.
`int`	`getVSnapOrigin()` Get an offset to be used when calculating snap positioning.
`int`	`getVSnapOrigin(Canvas snapChild)` Get an offset to be used when calculating snap positioning.
`int`	`getVSnapPosition(int coordinate)` Override this method to provide a custom snap-to grid.
`int`	`getVSnapPosition(int coordinate, java.lang.String direction)` Override this method to provide a custom snap-to grid.
`java.lang.Integer`	`getWidth()` Size for this component's horizontal dimension.
`java.lang.String`	`getWidthAsString()`
`int`	`getZIndex()` Get the z-Index of this canvas.
`int`	`getZIndex(boolean resolveToNumber)` Get the z-Index of this canvas.
`void`	`handleHover()` Handler fired on a delay when the user hovers the mouse over this hover-target.
`void`	`hide()` Sets the widget's CSS visibility attribute to "hidden".
`void`	`hideClickMask()` Hides the click mask associated with this canvas.
`void`	`hideClickMask(java.lang.String ID)` Hides the click mask associated with this canvas.
`void`	`hideComponentMask()` Hide the `component level clickMask` for this widget
`void`	`hideComponentMask(boolean suppressFocusReset)` Hide the `component level clickMask` for this widget
`void`	`hideContextMenu()` The default implementation of this method hides the contextMenu currently being shown for this component (which occurs when the mouse button that toggles the context menu is released).
`static java.lang.String`	`imgHTML(java.lang.String src)` Generates the HTML for an image unique to this Canvas.
`static java.lang.String`	`imgHTML(java.lang.String src, int width, int height)`
`static java.lang.String`	`imgHTML(java.lang.String src, int width, int height, java.lang.String name, java.lang.String extraStuff, java.lang.String imgDir)` Generates the HTML for an image unique to this Canvas.
`java.lang.Boolean`	`intersects(Canvas other)` Returns true if the rectangles of this widget and the specified widget overlap.
`java.lang.Boolean`	`isDirty()` Returns whether a canvas is waiting to be redrawn.
`java.lang.Boolean`	`isDisabled()` Is this canvas disabled? Note that the disabled state is inherited - this method will return true if this widget, or any of its ancestors are marked disabled.
`java.lang.Boolean`	`isDrawn()` Returns the boolean true, if the widget has been completely drawn, and false otherwise.
`java.lang.Boolean`	`isFocused()` Returns true if this Canvas has the keyboard focus.
`boolean`	`isVisible()` Returns true if the widget is visible, taking all parents into account, so that a widget which is not hidden might still report itself as not visible if it is within a hidden parent.
`java.lang.Boolean`	`keyUp()` Executed when a key is released on a focusable widget (`canFocus`: true).
`void`	`layoutChildren(java.lang.String reason)` `layoutChildren()` is where a Canvas should implement a sizing policy for it's Canvas children.
`java.lang.String`	`linkHTML(java.lang.String href)` Generates the HTML for a standard link (anchor) element.
`java.lang.String`	`linkHTML(java.lang.String href, java.lang.String text)`
`java.lang.String`	`linkHTML(java.lang.String href, java.lang.String text, java.lang.String target)`
`java.lang.String`	`linkHTML(java.lang.String href, java.lang.String text, java.lang.String target, java.lang.String ID)`
`java.lang.String`	`linkHTML(java.lang.String href, java.lang.String text, java.lang.String target, java.lang.String ID, java.lang.Integer tabIndex)`
`java.lang.String`	`linkHTML(java.lang.String href, java.lang.String text, java.lang.String target, java.lang.String ID, java.lang.Integer tabIndex, java.lang.String accessKey)` Generates the HTML for a standard link (anchor) element.
`void`	`markForDestroy()` `destroy()` this canvas on a timeout.
`void`	`markForRedraw()` Marks the widget as "dirty" so that it will be added to a queue for redraw.
`void`	`markForRedraw(java.lang.String reason)` Marks the widget as "dirty" so that it will be added to a queue for redraw.
`void`	`moveAbove(Canvas canvas)` Puts this widget just above the specified widget in the stacking order, so it appears in front of the specified widget if both widgets have the same parent.
`void`	`moveBelow(Canvas canvas)` Puts this widget just below the specified widget in the stacking order, so it appears behind the specified widget if both widgets have the same parent.
`java.lang.Boolean`	`moveBy(int deltaX, int deltaY)` Moves the widget deltaX pixels to the right and deltaY pixels down.
`boolean`	`moveTo(int left, int top)` Moves the widget so that its top-left corner is at the specified coordinates.
`protected void`	`onAttach()`
`protected void`	`onDetach()`
`protected void`	`onInit()`
`void`	`pageScrollDown()` This method is the programmatic equivalent of the user pressing the "Page Down" key while this widget has the focus.
`void`	`pageScrollUp()` This method is the programmatic equivalent of the user pressing the "Page Up" key while this widget has the focus.
`protected void`	`parentResized()` Fires when the interior size of the parent changes, including parent resize and scrollbar introduction or removal.
`void`	`placeNear()` Move this canvas to the specified point, or as close to the specified point as possible without this widget extending beyond the edge of the browser viewport on any side.
`void`	`placeNear(int left)`
`void`	`placeNear(int left, int top)` Move this canvas to the specified point, or as close to the specified point as possible without this widget extending beyond the edge of the browser viewport on any side.
`static void`	`printComponents(java.lang.Object[] components)` Generate printable HTML for the designated components and trigger the native print dialog, without ever showing the printable HTML to the user.
`void`	`provideRuleContext(java.lang.String dataPath, java.lang.Object data)`
`void`	`redraw()` Redraws the widget immediately with its current property values.
`void`	`redraw(java.lang.String reason)` Redraws the widget immediately with its current property values.
`void`	`removeChild(Canvas child)` Remove a child from this parent.
`void`	`removeChild(Canvas child, java.lang.String name)` Remove a child from this parent.
`void`	`removePeer(Canvas peer)` Remove a peer from this Canvas
`void`	`removePeer(Canvas peer, java.lang.String name)` Remove a peer from this Canvas
`void`	`removeSnapAlignCandidate(Canvas candidate)` Remove a candidate from `snapAlignCandidates`.
`java.lang.Boolean`	`resizeBy(int deltaX, int deltaY)` Resizes the widget, adding deltaX to its width and deltaY to its height (moves the right and/or bottom sides of the widget).
`java.lang.Boolean`	`resizeTo(int width, int height)` Resizes the widget to the specified width and height (moves the right and/ or bottom sides of the widget).
`java.lang.Boolean`	`resizeTo(java.lang.String width, java.lang.String height)` Resizes the widget to the specified width and height (moves the right and/ or bottom sides of the widget).
`void`	`revealChild(Canvas child)` For "panel container" widgets like `TabSet` or `SectionStack`, this method reveals the child Canvas passed in by whatever means is applicable for the particular type of container.
`void`	`revealChild(java.lang.String child)` For "panel container" widgets like `TabSet` or `SectionStack`, this method reveals the child Canvas passed in by whatever means is applicable for the particular type of container.
`void`	`scrollBy(int dX, int dY)` Scroll this widget by some pixel increment in either (or both) direction(s).
`void`	`scrollByPercent(int dX, int dY)` Scroll this widget by some percentage of scroll size in either (or both) direction(s).
`void`	`scrollTo()` Scrolls the content of the widget so that the origin (top-left corner) of the content is left pixels to the left and top pixels above the widget's top-left corner (but still clipped by the widget's dimensions).
`void`	`scrollTo(java.lang.Integer left)`
`void`	`scrollTo(java.lang.Integer left, java.lang.Integer top)` Scrolls the content of the widget so that the origin (top-left corner) of the content is left pixels to the left and top pixels above the widget's top-left corner (but still clipped by the widget's dimensions).
`void`	`scrollToBottom()` Vertically scrolls the content of the widget to the end of its content
`void`	`scrollToLeft()` Horizontally scrolls the content of the widget to 0
`void`	`scrollToPercent(int left, int top)` Scroll this widget to some position specified as a percentage of scroll size in either (or both) direction(s).
`void`	`scrollToRight()` Horizontally scrolls the content of the widget to the end of its content
`void`	`scrollToTop()` Vertically scrolls the content of the widget to 0
`void`	`sendToBack()` Puts this widget at the bottom of the stacking order, so it appears behind all other widgets in the same parent.
`void`	`setAccessKey(java.lang.String accessKey)` If specified this governs the HTML accessKey for the widget.
`void`	`setAlign(Alignment align)`
`static void`	`setAllowExternalFilters(boolean allExternalFilters)` Changes the system-wide `allowExternalFilters` setting.
`void`	`setAlwaysShowScrollbars(java.lang.Boolean alwaysShowScrollbars)` On `touch devices` that support native touch scrolling, if `showCustomScrollbars` is `true` and touch scrolling has not been disabled by the `useTouchScrolling` and/or `disableTouchScrollingForDrag` settings, should custom scrollbars and native touch scrolling be enabled for this component? If `false` or unset, then only native touch scrolling will be enabled.
`void`	`setAnimateAcceleration(AnimationAcceleration animateAcceleration)` Default acceleration effect to apply to all animations on this Canvas.
`void`	`setAnimateFadeTime(java.lang.Integer animateFadeTime)` Default time for performing an animated fade.
`void`	`setAnimateHideAcceleration(AnimationAcceleration animateHideAcceleration)` Default acceleration function for performing an animated hide.
`void`	`setAnimateHideTime(java.lang.Integer animateHideTime)` Default time for performing an animated hide.
`void`	`setAnimateMoveAcceleration(AnimationAcceleration animateMoveAcceleration)` Default acceleration effect for performing an animated move.
`void`	`setAnimateMoveTime(java.lang.Integer animateMoveTime)` Default time for performing an animated move.
`void`	`setAnimateRectAcceleration(AnimationAcceleration animateRectAcceleration)` Default acceleration function for performing an animated move and resize.
`void`	`setAnimateRectTime(java.lang.Integer animateRectTime)` Default time for performing an animated setRect.
`void`	`setAnimateResizeAcceleration(AnimationAcceleration animateResizeAcceleration)` Default acceleration function for performing an animated resize.
`void`	`setAnimateResizeTime(java.lang.Integer animateResizeTime)` Default time for performing an animated resize.
`void`	`setAnimateScrollAcceleration(AnimationAcceleration animateScrollAcceleration)` Default acceleration function for performing an animated scroll.
`void`	`setAnimateScrollTime(java.lang.Integer animateScrollTime)` Default time for performing an animated scroll.
`void`	`setAnimateShowAcceleration(AnimationAcceleration animateShowAcceleration)` Default acceleration function for performing an animated show.
`void`	`setAnimateShowEffect(AnimationEffect animateShowEffect)` Default animation effect to use if `Canvas#animateShow()` is called without an explicit effect parameter.
`void`	`setAnimateShowTime(java.lang.Integer animateShowTime)` Default time for performing an animated show.
`void`	`setAnimateTime(int animateTime)` Default total duration of animations.
`void`	`setAppImgDir(java.lang.String appImgDir)` Default directory for app-specific images, relative to the Page-wide `appImgDir`.
`void`	`setAriaRole(java.lang.String ariaRole)` ARIA role of this component.
`void`	`setAriaState(java.lang.String stateName, java.lang.Object stateValue)` Set a specific ARIA state mapping for this component.
`void`	`setAutoChildConstructor(java.lang.String autoChildName, java.lang.String className)` Sets the SmartClient constructor for the AutoChild named `autoChildName`.
`void`	`setAutoChildProperties(java.lang.String autoChildName, Canvas properties)` Sets the properties for creating a `Canvas` AutoChild named `autoChildName`.
`void`	`setAutoChildProperties(java.lang.String autoChildName, EditContext properties)` Sets the properties for creating an AutoChild named `autoChildName`.
`void`	`setAutoChildProperties(java.lang.String autoChildName, EditProxy properties)` Sets the properties for creating an AutoChild named `autoChildName`.
`void`	`setAutoChildProperties(java.lang.String autoChildName, FormItem properties)` Sets the properties for creating a `FormItem` AutoChild named `autoChildName`.
`void`	`setAutoChildVisibility(java.lang.String autoChildName, boolean visible)` Sets whether to create and show the AutoChild named `autoChildName`.
`void`	`setAutoDraw(java.lang.Boolean autoDraw)` If true, this canvas will draw itself immediately after it is created.
`void`	`setAutoHeight()` Set the minimum value for height.
`void`	`setAutoMaskComponents(java.lang.Boolean autoMaskComponents)` Deprecated. As of Smart GWT version 10.0, deprecated in favor of `EditProxy.autoMaskChildren`
`void`	`setAutoShowParent(java.lang.Boolean autoShowParent)` If set to true, the widget's parent (if any) will automatically be shown whenever the widget is shown.
`void`	`setAutoWidth()` Set the minimum value for width.
`void`	`setBackgroundColor(java.lang.String backgroundColor)` The background color for this widget.
`void`	`setBackgroundImage(java.lang.String backgroundImage)` URL for a background image for this widget (corresponding to the CSS "background-image" attribute).
`void`	`setBackgroundPosition(java.lang.String backgroundPosition)` Specifies how the background image should be positioned on the widget.
`void`	`setBackgroundRepeat(BackgroundRepeat backgroundRepeat)` Specifies how the background image should be tiled if this widget is larger than the image.
`void`	`setBorder(java.lang.String border)` Set the CSS border of this component, as a CSS string including border-width, border-style, and/or color (eg "2px solid blue").
`void`	`setBottom(int bottom)` Resizes the widget vertically to position its bottom edge at the specified coordinate.
`void`	`setCanAcceptDrop(java.lang.Boolean canAcceptDrop)` Indicates that this object can receive dropped widgets (i.e.
`void`	`setCanDrag(java.lang.Boolean canDrag)` Indicates whether this widget can initiate custom drag-and-drop operations (other than reposition or resize).
`void`	`setCanDragReposition(java.lang.Boolean canDragReposition)` Indicates whether this widget can be moved by a user of your application by simply dragging with the mouse.
`void`	`setCanDragResize(java.lang.Boolean canDragResize)` Indicates whether this widget can be resized by dragging on the edges and/or corners of the widget with the mouse.
`void`	`setCanDragScroll(boolean canDragScroll)` If this Canvas is canAcceptDrop:true, when the user drags a droppable widget over an edge of the widget, should we scroll to show the rest of the widget's content? Returned from canvas.shouldDragScroll() if there are scrollbars.
`void`	`setCanDrop(java.lang.Boolean canDrop)` Indicates that this object can be dropped on top of other widgets.
`void`	`setCanDropBefore(java.lang.Boolean canDropBefore)` When explicitly set to false, disallows drop before this member in the Layout.
`void`	`setCanFocus(java.lang.Boolean canFocus)` Can this widget be allowed to become the target of keyboard events?
`void`	`setCanHover(java.lang.Boolean canHover)` Will this Canvas fire hover events when the user hovers over it, or one of its children?
`void`	`setCanSelectText(java.lang.Boolean canSelectText)` Whether native drag selection of contained text is allowed within this Canvas.
`void`	`setChildren(Canvas... children)` Array of all Canvii that are immediate children of this Canvas.
`void`	`setChildrenResizeSnapAlign(java.lang.Boolean childrenResizeSnapAlign)` Flag to disable snapping to alignment when children of this Canvas are resized
`void`	`setChildrenSnapAlign(java.lang.Boolean childrenSnapAlign)` If enabled while `childrenSnapToGrid` is enabled, children dragged within this Canvas will also snap to positions where their edges or center lines would be aligned with the edges or centers of other components, and lines will be shown to point out the possible alignment (with appearance controlled by `snapAlignCenterLineStyle` and `snapAlignEdgeLineStyle` respectively.
`void`	`setChildrenSnapCenterAlign(java.lang.Boolean childrenSnapCenterAlign)` See `childrenSnapAlign`.
`void`	`setChildrenSnapEdgeAlign(java.lang.Boolean childrenSnapEdgeAlign)` See `childrenSnapAlign`.
`void`	`setChildrenSnapResizeToGrid(java.lang.Boolean childrenSnapResizeToGrid)` If true, causes this canvas's children to snap to its grid when resizing.
`void`	`setChildrenSnapToGrid(java.lang.Boolean childrenSnapToGrid)` If true, causes this canvas's children to snap to its grid when dragging.
`void`	`setComponentMaskDefaults(Canvas componentMaskDefaults)` Defaults for the `componentMask` autoChild.
`void`	`setContents(java.lang.String contents)` The contents of a canvas or label widget.
`void`	`setContextMenu(Menu contextMenu)` Context menu to show for this object, an instance of the Menu widget.
`void`	`setCursor(Cursor cursor)` Specifies the cursor image to display when the mouse pointer is over this widget.
`void`	`setDataPath(java.lang.String dataPath)` A dataPath may be specified on any canvas.
`void`	`setDefaultHeight(int defaultHeight)` For custom components, establishes a default height for the component.
`static void`	`setDefaultPageSpace(int newDefaultPageSpace)` Changes the global `defaultPageSpace`.
`static void`	`setDefaultProperties(Canvas canvasProperties)` Class level method to set the default properties of this class.
`void`	`setDefaultWidth(int defaultWidth)` For custom components, establishes a default width for the component.
`void`	`setDisabled(boolean disabled)` If set to true, the widget will be disabled.
`void`	`setDisabledCursor(Cursor disabledCursor)` Specifies the cursor image to display when the mouse pointer is over this widget if this widget is disabled.
`void`	`setDisableTouchScrollingForDrag(java.lang.Boolean disableTouchScrollingForDrag)` Disables `useTouchScrolling` whenever a built-in drag operation has been enabled which is known to be non-functional if touch scrolling is enabled.
`void`	`setDoubleClickDelay(int doubleClickDelay)` Amount of time (in milliseconds) between which two clicks are considered a single click
`void`	`setDragAppearance(DragAppearance dragAppearance)` Visual appearance to show when the object is being dragged.
`void`	`setDragIntersectStyle(DragIntersectStyle dragIntersectStyle)` This indicates how the system will test for droppable targets: either by intersection with the mouse or intersection with the rectangle of the dragMoveTarget.
`void`	`setDragMaskType(DragMaskType dragMaskType)` This property controls what kind of mask is used in case `useDragMask` is enabled.
`void`	`setDragOpacity(java.lang.Integer dragOpacity)` If this widget has dragAppearance `"target"`, this value specifies the opacity to render the target while it is being dragged.
`void`	`setDragRepositionAppearance(DragAppearance dragRepositionAppearance)` If `canDragReposition` is true, this attributes specifies the visual appearance to show during drag reposition.
`void`	`setDragRepositionCursor(Cursor dragRepositionCursor)` Cursor to switch to if the mouse is over a widget that is drag repositionable.
`void`	`setDragResizeAppearance(DragAppearance dragResizeAppearance)` If `canDragResize` is true, this attributes specifies the visual appearance to show during drag resize.
`void`	`setDragScrollDelay(int dragScrollDelay)` If this widget supports drag-scrolling, This property specifies how many ms the user must hover over the drag-scroll threshold before scrolling begins.
`void`	`setDragStartDistance(int dragStartDistance)` Number of pixels the cursor needs to move before the EventHandler starts a drag operation.
`void`	`setDragTarget(Canvas dragTarget)` A different widget that should be actually dragged when dragging initiates on this widget.
`void`	`setDragType(java.lang.String dragType)` Sets a `dragType` for this widget used, to be compared to `dropTypes` on possible drop target widgets.
`void`	`setDropTypes(java.lang.String... dropTypes)` When a drag and drop interaction occurs, if a `dragType` is configured on the source widget, it is compared to the `dropTypes` configured on the target widget, and a drop is only allowed if the `dragType` is listed in the target widget's `dropTypes` array.
`void`	`setDropTypes(java.lang.String dropTypes)` When a drag and drop interaction occurs, if a `dragType` is configured on the source widget, it is compared to the `dropTypes` configured on the target widget, and a drop is only allowed if the `dragType` is listed in the target widget's `dropTypes` array.
`void`	`setDynamicContents(java.lang.Boolean dynamicContents)` Dynamic contents allows the contents string to be treated as a simple, but powerful template.
`void`	`setEdgeBackgroundColor(java.lang.String edgeBackgroundColor)` Background color for the EdgedCanvas created to decorate this component.
`void`	`setEdgeCenterBackgroundColor(java.lang.String edgeCenterBackgroundColor)` Background color for the center section only.
`void`	`setEdgeImage(java.lang.String edgeImage)` Base name of images for edges.
`void`	`setEdgeMarginSize(int edgeMarginSize)` How far into the edge of an object do we consider the "edge" for drag resize purposes?
`void`	`setEdgeOffset(java.lang.Integer edgeOffset)` Amount the contained Canvas should be offset.
`void`	`setEdgeOpacity(java.lang.Integer edgeOpacity)` Opacity of the edges.
`void`	`setEdgeShowCenter(java.lang.Boolean edgeShowCenter)` Whether to show media in the center section, that is, behind the decorated Canvas.
`void`	`setEdgeSize(int edgeSize)` Size in pixels for corners and edges
`void`	`setEditMode(boolean editingOn)` Enable or disable edit mode for this component.
`void`	`setEditMode(boolean editingOn, EditContext editContext)`
`void`	`setEditMode(boolean editingOn, EditContext editContext, EditNode editNode)` Enable or disable edit mode for this component.
`void`	`setEditProxyConstructor(java.lang.String editProxyConstructor)` Default class used to construct the `EditProxy` for this component when the component is `first placed into edit mode`.
`protected void`	`setElement(com.google.gwt.user.client.Element elem)` Normal usage of SmartGWT is to call draw() on SmartGWT widgets, not to use use RootPanel.add().
`void`	`setExtraSpace(int extraSpace)` When this Canvas is included as a member in a Layout, extra blank space that should be left after this member in a Layout.
`void`	`setFacetId(java.lang.String facetId)` If a Canvas is dropped onto a `CubeGrid`, and it has a facetId property specified then the Cube treats this as adding that facetId at the drop location.
`void`	`setGroupBorderCSS(java.lang.String groupBorderCSS)` Sets the style for the grouping frame around the canvas.
`void`	`setGroupLabelBackgroundColor(java.lang.String groupLabelBackgroundColor)` If set, the background color of the grouping label.
`void`	`setGroupLabelStyleName(java.lang.String groupLabelStyleName)` Sets the style for the grouping label.
`void`	`setGroupTitle(java.lang.String groupTitle)` The title/label for the grouping.
`void`	`setHeight(int height)`
`void`	`setHeight(java.lang.Integer height)` Size for this component's vertical dimension.
`void`	`setHeight(java.lang.String height)` Size for this component's vertical dimension.
`void`	`setHeight100()` Convenience method that sets the height to 100%.
`void`	`setHideUsingDisplayNone(boolean hideUsingDisplayNone)` When this widget is hidden (see `visibility` and `hide()`), should display:none be applied to the `outer element`?
`void`	`setHoverAlign(Alignment hoverAlign)` If `this.showHover` is true, this property can be used to customize the alignment of content in the hover canvas.
`void`	`setHoverAutoDestroy(java.lang.Boolean hoverAutoDestroy)` If `this.showHover` is true and `getHoverComponent()` is implemented, should the hoverCanvas returned from it be automatically destroyed when it is hidden?
`void`	`setHoverDelay(int hoverDelay)` If `this.canHover` is true, how long should the mouse be kept over this widget before the hover event is fired
`void`	`setHoverHeight(java.lang.Integer hoverHeight)` If `this.showHover` is true, this property can be used to customize the height of the hover canvas shown.
`void`	`setHoverMoveWithMouse(java.lang.Boolean hoverMoveWithMouse)` If `this.showHover` is true, should this widget's hover canvas be moved with the mouse while visible?
`void`	`setHoverOpacity(java.lang.Integer hoverOpacity)` If `this.showHover` is true, should the hover canvas be shown with opacity other than 100?
`void`	`setHoverStyle(java.lang.String hoverStyle)` If `this.showHover` is true, this property can be used to specify the css style to apply to the hover canvas.
`void`	`setHoverVAlign(VerticalAlignment hoverVAlign)` If `this.showHover` is true, this property can be used to customize the vertical alignment of content in the hover canvas.
`void`	`setHoverWidth(java.lang.Integer hoverWidth)` If `this.showHover` is true, this property can be used to customize the width of the hover canvas shown.
`void`	`setHoverWrap(java.lang.Boolean hoverWrap)` If `this.showHover` is true, this property can be used to customize the whether content in the hover canvas is displayed in a single line, or wraps.
`void`	`setHtmlElement(com.google.gwt.user.client.Element htmlElement)` If specified as a pointer to an HTML element present in the DOM, this canvas will be rendered inside that element on `draw()`.
`void`	`setHtmlPosition(DrawPosition htmlPosition)` If `htmlElement` is specified, this attribute specifies the position where the canvas should be inserted relative to the `htmlElement` in the DOM.
`void`	`setImage(java.lang.String identifier, java.lang.String URL)` Set the URL of an image element by name.
`void`	`setImage(java.lang.String identifier, java.lang.String URL, java.lang.String imgDir)` Set the URL of an image element by name.
`void`	`setInitHandler(CanvasInitHandler initHandler)` Specify a notification method to fire when this Canvas is initialized in JavaScript.
`void`	`setIsGroup(boolean isGroup)` Should a grouping frame be shown around this canvas.
`void`	`setIsSnapAlignCandidate(java.lang.Boolean isSnapAlignCandidate)` Flag to disable snapping to alignment against this Canvas when other Canvases dragged into the same parent when `childrenSnapAlign` is enabled on this Canvas' parent.
`void`	`setKeepInParentRect(java.lang.Boolean keepInParentRect)` Constrains drag-resizing and drag-repositioning of this canvas to either the rect of its parent (if set to true) or an arbitrary rect based its parent (if set to a [Left,Top,Width,Height] rect array).
`void`	`setKeepInParentRect(java.lang.Integer... keepInParentRect)` Constrains drag-resizing and drag-repositioning of this canvas to either the rect of its parent (if set to true) or an arbitrary rect based its parent (if set to a [Left,Top,Width,Height] rect array).
`void`	`setKeepInParentRect(Rectangle rectangle)`
`void`	`setLayoutAlign(Alignment layoutAlign)` When this Canvas is included as a member in a Layout, layoutAlign controls alignment on the breadth axis of the layout.
`void`	`setLayoutAlign(VerticalAlignment layoutAlign)` When this Canvas is included as a member in a Layout, layoutAlign controls alignment on the breadth axis of the layout.
`void`	`setLeavePageSpace(java.lang.Integer leavePageSpace)` If set, overrides the global `defaultPageSpace`.
`void`	`setLeft(int left)` Number of pixels the left side of the widget is offset to the right from its default drawing context (either its parent's topleft corner, or the document flow, depending on the value of the `position` property).
`void`	`setLeft(java.lang.String left)` Number of pixels the left side of the widget is offset to the right from its default drawing context (either its parent's topleft corner, or the document flow, depending on the value of the `position` property).
`void`	`setLocateChildrenBy(LocatorStrategy locateChildrenBy)` Strategy to use when locating children in this canvas from an autoTest locator string.
`void`	`setLocateChildrenType(LocatorTypeStrategy locateChildrenType)` `LocatorTypeStrategy` to use when finding children within this canvas.
`void`	`setLocatePeersBy(LocatorStrategy locatePeersBy)` Strategy to use when locating peers of this canvas from an autoTest locator string.
`void`	`setLocatePeersType(LocatorTypeStrategy locatePeersType)` `LocatorTypeStrategy` to use when finding peers of this canvas.
`com.smartgwt.logicalstructure.core.LogicalStructureObject`	`setLogicalStructure(com.smartgwt.logicalstructure.widgets.CanvasLogicalStructure s)` Setter implementing the `LogicalStructure` interface, which supports Eclipse's logical structure debugging facility.
`void`	`setMargin(java.lang.Integer margin)` Set the CSS Margin, in pixels, for this component.
`void`	`setMatchElement(java.lang.Boolean matchElement)` If `htmlElement` is specified, should this canvas initially be drawn at the same dimensions as the htmlElement? Note: setting this property will not force the canvas to resize if the element subsequently resizes (for example due to page reflow).
`void`	`setMaxHeight(int maxHeight)` Maximum height that this Canvas can be resized to.
`void`	`setMaxWidth(int maxWidth)` Maximum width that this Canvas can be resized to.
`void`	`setMenuConstructor(java.lang.String menuConstructor)` Default class used to construct menus created by this component, including context menus.
`void`	`setMinHeight(int minHeight)` Minimum height that this Canvas can be resized to by a user.
`void`	`setMinNonEdgeSize(int minNonEdgeSize)` If the widget has drag resize configured on one or more of it's edges, and the edgeMarginSize is large enough that the remaining space is less than `minNonEdgeSize`, the edgeMarginSize will be reduced such that the non-edge part of the widget is at least 1/3 of the total space (with two draggable edges) or half of it (with one draggable edge).
`void`	`setMinWidth(int minWidth)` Minimum width that this Canvas can be resized to.
`void`	`setMomentumScrollMinSpeed(double momentumScrollMinSpeed)` The minimum speed in pixels per second that must be reached for momentum scrolling to kick in.
`void`	`setMouseStillDownDelay(int mouseStillDownDelay)` Amount of time (in milliseconds) between repeated 'mouseStillDown' events for this canvas.
`void`	`setMouseStillDownInitialDelay(int mouseStillDownInitialDelay)` Amount of time (in milliseconds) before mouseStillDown events start to be fired repeatedly for this canvas.
`static void`	`setNeverUseFilters(boolean neverUseFilters)` Changes the system-wide `neverUseFilters` setting.
`void`	`setNoDoubleClicks(java.lang.Boolean noDoubleClicks)` If true, this canvas will receive all mouse-clicks as single `click` events rather than as `doubleClick` events.
`void`	`setNoDropCursor(Cursor noDropCursor)` Specifies the cursor image to display when the user drags a droppable canvas over this if it is not a valid drop target for the event and `showNoDropIndicator` is true.
`void`	`setOpacity(java.lang.Integer opacity)` Renders the widget to be partly transparent.
`void`	`setOverflow(Overflow overflow)` Controls what happens when the drawn size of the content of a Canvas is either greater or smaller than the specified size of the Canvas.
`void`	`setPadding(java.lang.Integer padding)` Set the CSS padding of this component, in pixels.
`void`	`setPageLeft(int left)` Set the page-relative left coordinate of this widget.
`void`	`setPageTop(int top)` Set the page-relative top coordinate of this widget.
`void`	`setParentCanvas(Canvas parentCanvas)` This Canvas's immediate parent, if any.
`void`	`setParentElement(Canvas parentElement)` Deprecated. As of Smartclient version 9.1, deprecated in favor of `parentCanvas` and `getParentCanvas()`
`void`	`setPeers(Canvas... peers)` Array of all Canvii that are peers of this Canvas.
`void`	`setPercentBox(PercentBoxModel percentBox)` Governs the model to be used when sizing canvases with percentage width or height, or positioning widgets with a specified `snapTo`.
`void`	`setPercentSource(Canvas percentSource)` If this canvas has its size specified as a percentage, this property allows the user to explicitly designate another canvas upon which sizing will be based.
`void`	`setPosition(Positioning position)` Absolute or relative, corresponding to the "absolute" (with respect to parent) or "relative" (with respect to document flow) values for the CSS position attribute.
`void`	`setPrefix(java.lang.String prefix)`
`void`	`setPrintChildrenAbsolutelyPositioned(java.lang.Boolean printChildrenAbsolutelyPositioned)` Should this canvas print its children absolutely positioned when generating `printable HTML`.
`void`	`setPrompt(java.lang.String prompt)` Prompt displayed in hover canvas if `showHover` is true.
`void`	`setProportionalResizeModifiers(java.lang.String... proportionalResizeModifiers)` If `proportionalResizing` is set to `ProportionalResizeMode.MODIFIER` or `ProportionalResizeMode.MODIFIER_OFF` then proportional resizing of the DrawItem is activated or deactivated, respectively, whenever at least one key in this set of modifier keys is pressed.
`void`	`setProportionalResizing(ProportionalResizeMode proportionalResizing)` If `canDragResize` is true, this property specifies the conditions for when proportional resizing is used.
`void`	`setRect(int left, int top, int width, int height)` Set all four coordinates, relative to the enclosing context, at once.
`void`	`setRect(Rectangle rectangle)` Set all four coordinates, relative to the enclosing context, at once.
`void`	`setRedrawOnResize(java.lang.Boolean redrawOnResize)` Should this element be redrawn in response to a resize?
`void`	`setResizeBarTarget(java.lang.String resizeBarTarget)` When this Canvas is included as a member in a Layout, and `showResizeBar` is set to `true` so that a resizeBar is created, `resizeBarTarget:"next"` can be set to indicate that the resizeBar should resize the next member of the layout rather than this one.
`void`	`setResizeFrom(EdgeName... resizeFrom)` When drag resizing is enabled via `canDragResize`, restricts resizes to only certain edges or corners.
`void`	`setResizeFrom(java.lang.String... resizeFrom)` Deprecated. use `#setResizeFrom(EdgeName)` instead.
`void`	`setRight(int right)` Resizes the widget horizontally to position its right side at the specified coordinate.
`void`	`setScrollbarConstructor(java.lang.String scrollbarConstructor)` The class that will be used to create custom scrollbars for this component.
`void`	`setScrollbarSize(int scrollbarSize)` How thick should we make the scrollbars for this canvas.
`void`	`setShadowDepth(int shadowDepth)` Depth of the shadow, or the virtual height above the page of the widget throwing the shadow.
`void`	`setShadowImage(java.lang.String shadowImage)` Base name of the series of images for the sides, corners, and center of the shadow.
`void`	`setShadowOffset(java.lang.Integer shadowOffset)` Offset of the shadow.
`void`	`setShadowSoftness(java.lang.Integer shadowSoftness)` Softness, or degree of blurring, of the shadow.
`void`	`setShouldPrint(java.lang.Boolean shouldPrint)` Whether this canvas should be included in a printable view.
`void`	`setShowCustomScrollbars(boolean showCustomScrollbars)` Whether to use the browser's native scrollbars or Smart GWT-based scrollbars.
`void`	`setShowDragShadow(java.lang.Boolean showDragShadow)` When this widget is dragged, if its dragAppearance is `"target"`, should we show a shadow behind the canvas during the drag.
`void`	`setShowEdges(java.lang.Boolean showEdges)` Whether an `EdgedCanvas` should be used to show image-based edges around this component.
`void`	`setShowHover(java.lang.Boolean showHover)` If `this.canHover` is true, should we show the global hover canvas by default when the user hovers over this canvas?
`void`	`setShowHoverComponents(java.lang.Boolean showHoverComponents)` When set to true, shows a widget hovering at the mouse point instead of the builtin hover label.
`void`	`setShowResizeBar(java.lang.Boolean showResizeBar)` When this Canvas is included as a member in a `Layout`, whether a resizeBar should be shown after this member in the layout, to allow it to be resized.
`void`	`setShowShadow(java.lang.Boolean showShadow)` Whether to show a drop shadow for this Canvas.
`void`	`setShowSnapGrid(java.lang.Boolean showSnapGrid)` Whether to show a snap grid for this Canvas.
`void`	`setShrinkElementOnHide(boolean shrinkElementOnHide)` This is an advanced setting.
`void`	`setSkinImgDir(java.lang.String skinImgDir)` Default directory for skin images (those defined by the class), relative to the Page-wide `skinDir`.
`void`	`setSmoothFade(java.lang.Boolean smoothFade)`
`void`	`setSnapAlignCandidates(Canvas... snapAlignCandidates)` When `childrenSnapAlign` is enabled, list of candidates to check for alignment.
`void`	`setSnapAlignCenterLineStyle(java.lang.String snapAlignCenterLineStyle)` CSS border declaration used for the line shown to indicate snapping to a center line when `childrenSnapAlign` is set.
`void`	`setSnapAlignEdgeLineStyle(java.lang.String snapAlignEdgeLineStyle)` CSS border declaration used for the line shown to indicate snapping to a edge line when `childrenSnapAlign` is set.
`void`	`setSnapAxis(java.lang.String snapAxis)` Describes which axes to apply snap-to-grid to.
`void`	`setSnapEdge(java.lang.String snapEdge)` If `snapTo` is defined to this widget, this property can be used to define which edge of this widget should be snapped to an edge of the master or parent element.
`void`	`setSnapHDirection(java.lang.String snapHDirection)` The horizontal snap direction.
`void`	`setSnapHGap(int snapHGap)` The horizontal grid size to use, in pixels, when snap-to-grid is enabled.
`void`	`setSnapOffsetLeft(java.lang.Integer snapOffsetLeft)` If `snapTo` is defined for this widget, this property can be used to specify an offset in px or percentage for the left coordinate of this widget.
`void`	`setSnapOffsetTop(java.lang.Integer snapOffsetTop)` If `snapTo` is defined for this widget, this property can be used to specify an offset in px or percentage for the top coordinate of this widget.
`void`	`setSnapOnDrop(java.lang.Boolean snapOnDrop)` When this canvas is dropped onto an object supporting snap-to-grid, should it snap to the grid (true, the default) or just drop wherever the mouse is (false).
`void`	`setSnapResizeToAlign(java.lang.Boolean snapResizeToAlign)` Flag to disable snapping to alignment when this Canvas is resized.
`void`	`setSnapResizeToGrid(java.lang.Boolean snapResizeToGrid)` Causes this canvas to snap to its parent's grid when resizing.
`void`	`setSnapTo(java.lang.String snapTo)` Position this widget such that it is aligned with ("snapped to") an edge of its `master` (if specified), or its `parent canvas`.
`void`	`setSnapToAlign(java.lang.Boolean snapToAlign)` Flag to disable snapping to alignment when this Canvas is dragged when `childrenSnapAlign` is enabled on this Canvas' parent.
`void`	`setSnapToCenterAlign(java.lang.Boolean snapToCenterAlign)` Flag to disable snapping to center alignment when this Canvas is dragged when `childrenSnapAlign` is enabled on this Canvas' parent.
`void`	`setSnapToEdgeAlign(java.lang.Boolean snapToEdgeAlign)` Flag to disable snapping to edge alignment when this Canvas is dragged when `childrenSnapAlign` is enabled on this Canvas' parent.
`void`	`setSnapToGrid(java.lang.Boolean snapToGrid)` Causes this canvas to snap to its parent's grid when dragging.
`void`	`setSnapVDirection(java.lang.String snapVDirection)` The vertical snap direction.
`void`	`setSnapVGap(int snapVGap)` The vertical grid size to use, in pixels, when snap-to-grid is enabled.
`void`	`setStyleName(java.lang.String styleName)` The CSS class applied to this widget as a whole.
`void`	`setTabIndex(java.lang.Integer tabIndex)` If specified this governs the tabIndex of the widget in the page's tab order.
`void`	`setTitle(java.lang.String title)` Synonym for `setPrompt(String)`
`void`	`setTooltip(java.lang.String tooltip)` Synonym for `setPrompt(String)`
`void`	`setTop(int top)` Number of pixels the top of the widget is offset down from its default drawing context (either its parent's top-left corner, or the document flow, depending on the value of the `position` property).
`void`	`setTop(java.lang.String top)` Number of pixels the top of the widget is offset down from its default drawing context (either its parent's top-left corner, or the document flow, depending on the value of the `position` property).
`void`	`setUseBackMask(java.lang.Boolean useBackMask)` In earlier versions of Internet Explorer (pre IE9), a native limitation exists whereby if HTML elements are overlapping on the page, certain elements can appear to "burn through" elements in the same position with a higher z-index.
`void`	`setUseDragMask(boolean useDragMask)` This flag controls whether we register the component as a maskable item with the EventHandler.
`void`	`setUseNativeDrag(java.lang.Boolean useNativeDrag)` If set, native HTML5 drag and drop will be used for all drags initiated on this widget (on browsers where this is supported).
`void`	`setUseOpacityFilter(java.lang.Boolean useOpacityFilter)` Configures where the Opacity filter is used for IE6-8.
`void`	`setUseTouchScrolling(java.lang.Boolean useTouchScrolling)` On `touch devices`, if this `Canvas` can be scrolled, should touch-dragging the content area result in scrolling? Set to `false` if touch-dragging should not cause scrolling.
`void`	`setValuesManager(ValuesManager valuesManager)` `ValuesManager` for managing values displayed in this component.
`void`	`setVisibility(Visibility visibility)` Controls widget visibility when the widget is initialized.
`void`	`setVisible(boolean visible)`
`void`	`setWidth(int width)`
`void`	`setWidth(java.lang.Integer width)` Size for this component's horizontal dimension.
`void`	`setWidth(java.lang.String width)` Size for this component's horizontal dimension.
`void`	`setWidth100()` Convenience method that sets the width to 100%.
`void`	`setZIndex(int newIndex)` Set the z-Index of the canvas.
`void`	`shouldDragScroll()` If this widget is showing scrollbars, and a user drags close to the edge of the viewport, should we scroll the viewport in the appropriate direction? Returns this.canDragScroll if there are scrollbars, else false.
`void`	`show()` Sets this widget's visibility to "inherit", so that it becomes visible if all of its parents are visible or it has no parents.
`java.lang.String`	`showClickMask(Function clickActionCallback, ClickMaskMode mode, Canvas[] unmaskedTargets)` Show a clickMask over the entire screen that intercepts mouse clicks and fires some action.
`void`	`showComponentMask()` Temporariy block all user interaction with children of this widget, with the exception of those passed in in the `unmaskedChildren` parameter.
`void`	`showComponentMask(Canvas... unmaskedChildren)` Temporariy block all user interaction with children of this widget, with the exception of those passed in in the `unmaskedChildren` parameter.
`void`	`showNextTo(Canvas otherWidget)` Show this widget next to another widget on the page, positioned such that it will not extend beyond the browser viewport.
`void`	`showNextTo(Canvas otherWidget, java.lang.String side)`
`void`	`showNextTo(Canvas otherWidget, java.lang.String side, boolean canOcclude)`
`void`	`showNextTo(Canvas otherWidget, java.lang.String side, boolean canOcclude, boolean skipAnimation)` Show this widget next to another widget on the page, positioned such that it will not extend beyond the browser viewport.
`static void`	`showPrintPreview(Canvas component)` Show a PrintWindow containing a printable view of the component passed in containing print HTML.
`static void`	`showPrintPreview(java.lang.Object[] components)` Show a Print containing a printable view of the components passed in.
`static void`	`showPrintPreview(java.lang.Object[] components, PrintProperties printProperties, java.lang.String title, PrintPreviewCallback callback)` Show a Print containing a printable view of the components passed in.
`static void`	`showPrintPreview(java.lang.Object[] components, PrintProperties printProperties, java.lang.String title, PrintPreviewCallback callback, Window printWindowProperties, java.lang.String printButtonTitle)` Show a Print containing a printable view of the components passed in.
`void`	`showRecursively()` Recursively show the canvas and all it's parents so the canvas will be visible.
`void`	`updateEditNode(EditContext editContext, EditNode editNode)` A callback invoked for each `liveObject` by `EditContext` when the EditContext is being serialized.
`void`	`updateHover()` If this canvas is currently showing a hover (see `handleHover()`), this method can be called to update the contents of the hover.
`void`	`updateHover(java.lang.String hoverHTML)` If this canvas is currently showing a hover (see `handleHover()`), this method can be called to update the contents of the hover.
`void`	`updateShadow()` Update the canvas shadow.
`java.lang.Boolean`	`visibleAtPoint(int x, int y, boolean withinViewport, Canvas ignoreWidgets, Canvas upToParent)` Does this widget contain the specified global (x,y) coordinates, and have no other widgets also at the specified position, obscuring this one? This is commonly used for (for example) drag and drop interactions.
`java.lang.Boolean`	`willAcceptDrop()` Returns true if the widget object being dragged can be dropped on this widget, and false or null otherwise.

Methods inherited from class com.smartgwt.client.widgets.BaseWidget
addDrawHandler, applyFactoryProperties, destroy, doAddHandler, doInit, doOnRender, draw, equals, error, errorIfNotCreated, getAttribute, getAttributeAsBoolean, getAttributeAsDate, getAttributeAsDateArray, getAttributeAsDouble, getAttributeAsElement, getAttributeAsFloat, getAttributeAsFloatArray, getAttributeAsInt, getAttributeAsIntArray, getAttributeAsJavaScriptObject, getAttributeAsMap, getAttributeAsRecord, getAttributeAsString, getAttributeAsStringArray, getConfig, getDOM, getHandlerCount, getID, getInnerHTML, getJsObj, getOrCreateJsObj, getRef, getScClassName, hasAutoAssignedID, hashCode, initNativeObject, internalSetID, internalSetID, isConfigOnly, isCreated, isFactoryCreated, onBind, onDestroy, onDraw, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setConfig, setConfigOnly, setDragTracker, setFactoryCreated, setID, setJavaScriptObject, setLogicalStructure, setNullProperty, setPosition, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setScClassName, toString

Methods inherited from class com.google.gwt.user.client.ui.Widget
addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, doAttachChildren, doDetachChildren, fireEvent, getLayoutData, getParent, isAttached, isOrWasAttached, onBrowserEvent, onLoad, onUnload, removeFromParent, setLayoutData, sinkEvents, unsinkEvents

Methods inherited from class com.google.gwt.user.client.ui.UIObject
addStyleDependentName, ensureDebugId, ensureDebugId, ensureDebugId, getStyleElement, getStyleName, getStylePrimaryName, getStylePrimaryName, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, resolvePotentialElement, setElement, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setVisible, sinkBitlessEvent

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.google.gwt.event.shared.HasHandlers
fireEvent

- Constructor Detail
  - Canvas
```
public Canvas()
```
  - Canvas
```
public Canvas(com.google.gwt.core.client.JavaScriptObject jsObj)
```
  - Canvas
```
public Canvas(java.lang.String id)
```
- Method Detail
  - getOrCreateRef
```
public static Canvas getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)
```
  - changeAutoChildDefaults
```
public static void changeAutoChildDefaults(java.lang.String autoChildName,
                                           Canvas defaults)
```
    Changes the defaults for Canvas AutoChildren named autoChildName.
    
    Parameters:
    
    autoChildName - name of an AutoChild to customize the defaults for.
    
    defaults - Canvas defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see SGWTProperties.
    
    See Also:
    
    AutoChildUsage
  - changeAutoChildDefaults
```
public static void changeAutoChildDefaults(java.lang.String autoChildName,
                                           FormItem defaults)
```
    Changes the defaults for FormItem AutoChildren named autoChildName.
    
    Parameters:
    
    autoChildName - name of an AutoChild to customize the defaults for.
    
    defaults - FormItem defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see SGWTProperties.
    
    See Also:
    
    AutoChildUsage
  - create
```
protected com.google.gwt.core.client.JavaScriptObject create()
```
    Overrides:
    
    create in class BaseWidget
  - setAccessKey
```
public void setAccessKey(java.lang.String accessKey)
```
    If specified this governs the HTML accessKey for the widget.
    This should be set to a character - when a user hits the html accessKey modifier for the browser, plus this character, focus will be given to the widget in question. The accessKey modifier can vary by browser and platform.
    The following list of default behavior is for reference only, developers should also consult browser documentation for additional information.
    - Internet Explorer (all platforms): Alt + accessKey
    - Mozilla Firefox (Windows, Unix): Alt+Shift + accessKey
    - Mozilla Firefox (Mac): Ctrl+Opt + accessKey
    - Chrome and Safari (Windows, Unix): Alt + accessKey
    - Chrome and Safari (Mac): Ctrl+Opt + accessKey
    If this method is called after the component has been drawn/initialized: Set the accessKey for this canvas.
    The accessKey can be set to any alphanumeric character (symbols not supported) Having set an accessKey, the canvas will be given focus when the user hits Alt+[accessKey], or in Mozilla Firefox 2.0 and above, Shift+Alt+[accessKey].
    Note : This is an advanced setting
    Parameters:
    
    accessKey - Character to use as an accessKey for this widget. Case Insensitive.. Default value is null
    
    See Also:
    
    Focus overview and related methods
  - getAccessKey
```
public java.lang.String getAccessKey()
```
    If specified this governs the HTML accessKey for the widget.
    This should be set to a character - when a user hits the html accessKey modifier for the browser, plus this character, focus will be given to the widget in question. The accessKey modifier can vary by browser and platform.
    The following list of default behavior is for reference only, developers should also consult browser documentation for additional information.
    - Internet Explorer (all platforms): Alt + accessKey
    - Mozilla Firefox (Windows, Unix): Alt+Shift + accessKey
    - Mozilla Firefox (Mac): Ctrl+Opt + accessKey
    - Chrome and Safari (Windows, Unix): Alt + accessKey
    - Chrome and Safari (Mac): Ctrl+Opt + accessKey
    Returns:
    
    String
    
    See Also:
    
    Focus overview and related methods
  - setAlwaysShowScrollbars
```
public void setAlwaysShowScrollbars(java.lang.Boolean alwaysShowScrollbars)
                             throws java.lang.IllegalStateException
```
    On touch devices that support native touch scrolling, if showCustomScrollbars is true and touch scrolling has not been disabled by the useTouchScrolling and/or disableTouchScrollingForDrag settings, should custom scrollbars and native touch scrolling be enabled for this component? If false or unset, then only native touch scrolling will be enabled. If true, then both scrolling mechanisms will be enabled.
    NOTE: Because native touch scrolling (also called momentum scrolling) is computationally intensive, some mobile browsers implement an optimization where the state of the DOM for the element being scrolled will be frozen or partially frozen during the scroll animation. This results in a delay between when the scroll position reaches a certain point in the animation and when the positions of the custom scrollbar thumbs are updated to reflect that scroll position.
    Note : This is an advanced setting
    
    Parameters:
    
    alwaysShowScrollbars - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Scrolling overview and related methods
  - getAlwaysShowScrollbars
```
public java.lang.Boolean getAlwaysShowScrollbars()
```
    On touch devices that support native touch scrolling, if showCustomScrollbars is true and touch scrolling has not been disabled by the useTouchScrolling and/or disableTouchScrollingForDrag settings, should custom scrollbars and native touch scrolling be enabled for this component? If false or unset, then only native touch scrolling will be enabled. If true, then both scrolling mechanisms will be enabled.
    NOTE: Because native touch scrolling (also called momentum scrolling) is computationally intensive, some mobile browsers implement an optimization where the state of the DOM for the element being scrolled will be frozen or partially frozen during the scroll animation. This results in a delay between when the scroll position reaches a certain point in the animation and when the positions of the custom scrollbar thumbs are updated to reflect that scroll position.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Scrolling overview and related methods
  - setAnimateAcceleration
```
public void setAnimateAcceleration(AnimationAcceleration animateAcceleration)
```
    Default acceleration effect to apply to all animations on this Canvas. Can be overridden by setting animationAcceleration for specific animations or by passing an acceleration function directly into the appropriate method.
    Note : This is an advanced setting
    
    Parameters:
    
    animateAcceleration - Default value is "smoothEnd"
  - getAnimateAcceleration
```
public AnimationAcceleration getAnimateAcceleration()
```
    Default acceleration effect to apply to all animations on this Canvas. Can be overridden by setting animationAcceleration for specific animations or by passing an acceleration function directly into the appropriate method.
    
    Returns:
    
    AnimationAcceleration
  - setAnimateFadeTime
```
public void setAnimateFadeTime(java.lang.Integer animateFadeTime)
```
    Default time for performing an animated fade. If unset, this.animateTime will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateFadeTime - Default value is null
  - getAnimateFadeTime
```
public java.lang.Integer getAnimateFadeTime()
```
    Default time for performing an animated fade. If unset, this.animateTime will be used by default instead
    
    Returns:
    
    Integer
  - setAnimateHideAcceleration
```
public void setAnimateHideAcceleration(AnimationAcceleration animateHideAcceleration)
```
    Default acceleration function for performing an animated hide. If unset, this.animateAcceleration will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateHideAcceleration - Default value is null
  - getAnimateHideAcceleration
```
public AnimationAcceleration getAnimateHideAcceleration()
```
    Default acceleration function for performing an animated hide. If unset, this.animateAcceleration will be used by default instead
    
    Returns:
    
    AnimationAcceleration
  - setAnimateHideTime
```
public void setAnimateHideTime(java.lang.Integer animateHideTime)
```
    Default time for performing an animated hide. If unset, this.animateTime will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateHideTime - Default value is null
  - getAnimateHideTime
```
public java.lang.Integer getAnimateHideTime()
```
    Default time for performing an animated hide. If unset, this.animateTime will be used by default instead
    
    Returns:
    
    Integer
  - setAnimateMoveAcceleration
```
public void setAnimateMoveAcceleration(AnimationAcceleration animateMoveAcceleration)
```
    Default acceleration effect for performing an animated move. If unset, this.animateAcceleration will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateMoveAcceleration - Default value is null
  - getAnimateMoveAcceleration
```
public AnimationAcceleration getAnimateMoveAcceleration()
```
    Default acceleration effect for performing an animated move. If unset, this.animateAcceleration will be used by default instead
    
    Returns:
    
    AnimationAcceleration
  - setAnimateMoveTime
```
public void setAnimateMoveTime(java.lang.Integer animateMoveTime)
```
    Default time for performing an animated move. If unset, this.animateTime will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateMoveTime - Default value is null
  - getAnimateMoveTime
```
public java.lang.Integer getAnimateMoveTime()
```
    Default time for performing an animated move. If unset, this.animateTime will be used by default instead
    
    Returns:
    
    Integer
  - setAnimateRectAcceleration
```
public void setAnimateRectAcceleration(AnimationAcceleration animateRectAcceleration)
```
    Default acceleration function for performing an animated move and resize. If unset, this.animateAcceleration will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateRectAcceleration - Default value is null
  - getAnimateRectAcceleration
```
public AnimationAcceleration getAnimateRectAcceleration()
```
    Default acceleration function for performing an animated move and resize. If unset, this.animateAcceleration will be used by default instead
    
    Returns:
    
    AnimationAcceleration
  - setAnimateRectTime
```
public void setAnimateRectTime(java.lang.Integer animateRectTime)
```
    Default time for performing an animated setRect. If unset, this.animateTime will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateRectTime - Default value is null
  - getAnimateRectTime
```
public java.lang.Integer getAnimateRectTime()
```
    Default time for performing an animated setRect. If unset, this.animateTime will be used by default instead
    
    Returns:
    
    Integer
  - setAnimateResizeAcceleration
```
public void setAnimateResizeAcceleration(AnimationAcceleration animateResizeAcceleration)
```
    Default acceleration function for performing an animated resize. If unset, this.animateAcceleration will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateResizeAcceleration - Default value is null
  - getAnimateResizeAcceleration
```
public AnimationAcceleration getAnimateResizeAcceleration()
```
    Default acceleration function for performing an animated resize. If unset, this.animateAcceleration will be used by default instead
    
    Returns:
    
    AnimationAcceleration
  - setAnimateResizeTime
```
public void setAnimateResizeTime(java.lang.Integer animateResizeTime)
```
    Default time for performing an animated resize. If unset, this.animateTime will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateResizeTime - Default value is null
  - getAnimateResizeTime
```
public java.lang.Integer getAnimateResizeTime()
```
    Default time for performing an animated resize. If unset, this.animateTime will be used by default instead
    
    Returns:
    
    Integer
  - setAnimateScrollAcceleration
```
public void setAnimateScrollAcceleration(AnimationAcceleration animateScrollAcceleration)
```
    Default acceleration function for performing an animated scroll. If unset, this.animateAcceleration will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateScrollAcceleration - Default value is null
  - getAnimateScrollAcceleration
```
public AnimationAcceleration getAnimateScrollAcceleration()
```
    Default acceleration function for performing an animated scroll. If unset, this.animateAcceleration will be used by default instead
    
    Returns:
    
    AnimationAcceleration
  - setAnimateScrollTime
```
public void setAnimateScrollTime(java.lang.Integer animateScrollTime)
```
    Default time for performing an animated scroll. If unset, this.animateTime will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateScrollTime - Default value is null
  - getAnimateScrollTime
```
public java.lang.Integer getAnimateScrollTime()
```
    Default time for performing an animated scroll. If unset, this.animateTime will be used by default instead
    
    Returns:
    
    Integer
  - setAnimateShowAcceleration
```
public void setAnimateShowAcceleration(AnimationAcceleration animateShowAcceleration)
```
    Default acceleration function for performing an animated show. If unset, this.animateAcceleration will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateShowAcceleration - Default value is null
  - getAnimateShowAcceleration
```
public AnimationAcceleration getAnimateShowAcceleration()
```
    Default acceleration function for performing an animated show. If unset, this.animateAcceleration will be used by default instead
    
    Returns:
    
    AnimationAcceleration
  - setAnimateShowTime
```
public void setAnimateShowTime(java.lang.Integer animateShowTime)
```
    Default time for performing an animated show. If unset, this.animateTime will be used by default instead
    Note : This is an advanced setting
    
    Parameters:
    
    animateShowTime - Default value is null
  - getAnimateShowTime
```
public java.lang.Integer getAnimateShowTime()
```
    Default time for performing an animated show. If unset, this.animateTime will be used by default instead
    
    Returns:
    
    Integer
  - setAnimateTime
```
public void setAnimateTime(int animateTime)
```
    Default total duration of animations. Can be overridden by setting animation times for specific animations, or by passing a duration parameter into the appropriate animate...() method.
    Note : This is an advanced setting
    
    Parameters:
    
    animateTime - Default value is 300
    
    See Also:
    
    Fly Onscreen Example
  - getAnimateTime
```
public int getAnimateTime()
```
    Default total duration of animations. Can be overridden by setting animation times for specific animations, or by passing a duration parameter into the appropriate animate...() method.
    
    Returns:
    
    int
    
    See Also:
    
    Fly Onscreen Example
  - setAppImgDir
```
public void setAppImgDir(java.lang.String appImgDir)
```
    Default directory for app-specific images, relative to the Page-wide appImgDir.
    Note : This is an advanced setting
    
    Parameters:
    
    appImgDir - Default value is ""
    
    See Also:
    
    Images overview and related methods
  - getAppImgDir
```
public java.lang.String getAppImgDir()
```
    Default directory for app-specific images, relative to the Page-wide appImgDir.
    
    Returns:
    
    String
    
    See Also:
    
    Images overview and related methods
  - setAriaRole
```
public void setAriaRole(java.lang.String ariaRole)
                 throws java.lang.IllegalStateException
```
    ARIA role of this component. Usually does not need to be manually set - see Accessibility.
    
    Parameters:
    
    ariaRole - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Accessibility overview and related methods
  - getAriaRole
```
public java.lang.String getAriaRole()
```
    ARIA role of this component. Usually does not need to be manually set - see Accessibility.
    
    Returns:
    
    String
    
    See Also:
    
    Accessibility overview and related methods
  - setAutoDraw
```
public void setAutoDraw(java.lang.Boolean autoDraw)
                 throws java.lang.IllegalStateException
```
    If true, this canvas will draw itself immediately after it is created.
    Note that you should turn this OFF for any canvases that are provided as children of other canvases, or they will draw initially, then be clear()ed and drawn again when added as children, causing a large performance penalty.
    For example, the following code is incorrect and will cause extra draw()s:
```
      isc.Layout.create({
          members : [
              isc.ListGrid.create()
          ]
      });
  
```
    It should instead be:
```
      isc.Layout.create({
          members : [
              isc.ListGrid.create({ autoDraw: false })
          ]
      });
  
```
    In order to avoid unwanted autoDrawing systematically, it is recommend that you call isc.setAutoDraw(false) immediately after Smart GWT is loaded and before any components are created, then set autoDraw:true or call draw() explicitly to draw components.
    Otherwise, if the global setting for autoDraw remains true, you must set autoDraw:false, as shown above, on every component in your application that should not immediately draw: all Canvas children, Layout members, Window items, Tab panes, etc, however deeply nested. Forgetting to set autoDraw:false will result in one more clear()s - these are reported on the Results tab of the Developer Console, and can be tracked to individual components by using the "clears" log category in the Developer Console.
    Parameters:
    
    autoDraw - Default value is true
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Drawing overview and related methods
  - getAutoDraw
```
public java.lang.Boolean getAutoDraw()
```
    If true, this canvas will draw itself immediately after it is created.
    Note that you should turn this OFF for any canvases that are provided as children of other canvases, or they will draw initially, then be clear()ed and drawn again when added as children, causing a large performance penalty.
    For example, the following code is incorrect and will cause extra draw()s:
```
      isc.Layout.create({
          members : [
              isc.ListGrid.create()
          ]
      });
  
```
    It should instead be:
```
      isc.Layout.create({
          members : [
              isc.ListGrid.create({ autoDraw: false })
          ]
      });
  
```
    In order to avoid unwanted autoDrawing systematically, it is recommend that you call isc.setAutoDraw(false) immediately after Smart GWT is loaded and before any components are created, then set autoDraw:true or call draw() explicitly to draw components.
    Otherwise, if the global setting for autoDraw remains true, you must set autoDraw:false, as shown above, on every component in your application that should not immediately draw: all Canvas children, Layout members, Window items, Tab panes, etc, however deeply nested. Forgetting to set autoDraw:false will result in one more clear()s - these are reported on the Results tab of the Developer Console, and can be tracked to individual components by using the "clears" log category in the Developer Console.
    Returns:
    
    Boolean
    
    See Also:
    
    Drawing overview and related methods
  - setAutoMaskComponents
```
public void setAutoMaskComponents(java.lang.Boolean autoMaskComponents)
                           throws java.lang.IllegalStateException
```
    Deprecated. As of Smart GWT version 10.0, deprecated in favor of EditProxy.autoMaskChildren
    
    When nodes are added to an EditContext, should they be masked by setting EditNode.useEditMask true if not explicitly set?
    
    Parameters:
    
    autoMaskComponents - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
  - getAutoMaskComponents
```
public java.lang.Boolean getAutoMaskComponents()
```
    Deprecated. As of Smart GWT version 10.0, deprecated in favor of EditProxy.autoMaskChildren
    
    When nodes are added to an EditContext, should they be masked by setting EditNode.useEditMask true if not explicitly set?
    
    Returns:
    
    Boolean
  - setAutoShowParent
```
public void setAutoShowParent(java.lang.Boolean autoShowParent)
```
    If set to true, the widget's parent (if any) will automatically be shown whenever the widget is shown.
    Note : This is an advanced setting
    
    Parameters:
    
    autoShowParent - Default value is false
    
    See Also:
    
    Appearance overview and related methods
  - getAutoShowParent
```
public java.lang.Boolean getAutoShowParent()
```
    If set to true, the widget's parent (if any) will automatically be shown whenever the widget is shown.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Appearance overview and related methods
  - setBackgroundColor
```
public void setBackgroundColor(java.lang.String backgroundColor)
```
    The background color for this widget. It corresponds to the CSS background-color attribute. You can set this property to an RGB value (e.g. #22AAFF) or a named color (e.g. red) from a list of browser supported color names.
    
    If this method is called after the component has been drawn/initialized: Sets the background color of this component to newColor.
    
    Parameters:
    
    backgroundColor - new background color, or null to remove the current background color. See CSSColor . Default value is null
    
    See Also:
    
    Appearance overview and related methods
  - getBackgroundColor
```
public java.lang.String getBackgroundColor()
```
    The background color for this widget. It corresponds to the CSS background-color attribute. You can set this property to an RGB value (e.g. #22AAFF) or a named color (e.g. red) from a list of browser supported color names.
    
    Returns:
    
    See CSSColor
    
    See Also:
    
    Appearance overview and related methods
  - setBackgroundImage
```
public void setBackgroundImage(java.lang.String backgroundImage)
```
    URL for a background image for this widget (corresponding to the CSS "background-image" attribute).
    
    If this method is called after the component has been drawn/initialized: Sets the background to an image file given by newImage. This URL should be given as a string relative to the image directory for the page (./images by default).
    
    Parameters:
    
    backgroundImage - new URL (local to Page image directory) for background image See SCImgURL . Default value is null
    
    See Also:
    
    Appearance overview and related methods
  - getBackgroundImage
```
public java.lang.String getBackgroundImage()
```
    URL for a background image for this widget (corresponding to the CSS "background-image" attribute).
    
    Returns:
    
    See SCImgURL
    
    See Also:
    
    Appearance overview and related methods
  - setBackgroundPosition
```
public void setBackgroundPosition(java.lang.String backgroundPosition)
                           throws java.lang.IllegalStateException
```
    Specifies how the background image should be positioned on the widget. It corresponds to the CSS background-position attribute. If unset, no background-position attribute is specified if a background image is specified.
    
    Parameters:
    
    backgroundPosition - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Appearance overview and related methods
  - getBackgroundPosition
```
public java.lang.String getBackgroundPosition()
```
    Specifies how the background image should be positioned on the widget. It corresponds to the CSS background-position attribute. If unset, no background-position attribute is specified if a background image is specified.
    
    Returns:
    
    String
    
    See Also:
    
    Appearance overview and related methods
  - setBackgroundRepeat
```
public void setBackgroundRepeat(BackgroundRepeat backgroundRepeat)
                         throws java.lang.IllegalStateException
```
    Specifies how the background image should be tiled if this widget is larger than the image. It corresponds to the CSS background-repeat attribute.
    The default of null means no background-repeat CSS will be written out. See BackgroundRepeat type for details on other settings.
    NOTE: this setting directly sets the CSS property background-repeat but does not attempt to work around various known bugs with this setting, or lack of support in IE6. If you need to apply CSS-based workarounds for browser limitations with this setting, it's best to do so via setting styleName.
    
    Parameters:
    
    backgroundRepeat - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Appearance overview and related methods
  - getBackgroundRepeat
```
public BackgroundRepeat getBackgroundRepeat()
```
    Specifies how the background image should be tiled if this widget is larger than the image. It corresponds to the CSS background-repeat attribute.
    The default of null means no background-repeat CSS will be written out. See BackgroundRepeat type for details on other settings.
    NOTE: this setting directly sets the CSS property background-repeat but does not attempt to work around various known bugs with this setting, or lack of support in IE6. If you need to apply CSS-based workarounds for browser limitations with this setting, it's best to do so via setting styleName.
    
    Returns:
    
    BackgroundRepeat
    
    See Also:
    
    Appearance overview and related methods
  - setBorder
```
public void setBorder(java.lang.String border)
```
    Set the CSS border of this component, as a CSS string including border-width, border-style, and/or color (eg "2px solid blue").
    This property applies the same border to all four sides of this component. Different per-side borders can be set in a CSS style and applied via styleName.
    If isGroup is set to true then border is derived from the groupBorderCSS attribute, not from the explicit border property.
    
    If this method is called after the component has been drawn/initialized: Set the CSS border of this component, as a CSS string including border-width, border-style, and/or color (eg "2px solid blue").
    This property applies the same border to all four sides of this component. Different per-side borders can be set in a CSS style and applied via styleName.
    
    Parameters:
    
    border - new border to set to (eg: "2px solid black"). Default value is null
    
    See Also:
    
    Appearance overview and related methods
  - getBorder
```
public java.lang.String getBorder()
```
    Set the CSS border of this component, as a CSS string including border-width, border-style, and/or color (eg "2px solid blue").
    This property applies the same border to all four sides of this component. Different per-side borders can be set in a CSS style and applied via styleName.
    If isGroup is set to true then border is derived from the groupBorderCSS attribute, not from the explicit border property.
    
    Returns:
    
    String
    
    See Also:
    
    Appearance overview and related methods
  - setCanAcceptDrop
```
public void setCanAcceptDrop(java.lang.Boolean canAcceptDrop)
```
    Indicates that this object can receive dropped widgets (i.e. other widgets can be dropped on top of it).
    Note : This is an advanced setting
    
    Parameters:
    
    canAcceptDrop - Default value is false
    
    See Also:
    
    Dragdrop overview and related methods, Drag create Example
  - getCanAcceptDrop
```
public java.lang.Boolean getCanAcceptDrop()
```
    Indicates that this object can receive dropped widgets (i.e. other widgets can be dropped on top of it).
    
    Returns:
    
    Boolean
    
    See Also:
    
    Dragdrop overview and related methods, Drag create Example
  - setCanDrag
```
public void setCanDrag(java.lang.Boolean canDrag)
```
    Indicates whether this widget can initiate custom drag-and-drop operations (other than reposition or resize). Normally canDragReposition or canDragResize would be used instead of this property.
    Note: this property may be manipulated by higher-level dragging semantics.
    If useNativeDrag is true and this widget has been drawn, then this widget must be redrawn in order for a change of the value of this attribute to take effect.
    Note : This is an advanced setting
    
    Parameters:
    
    canDrag - Default value is false
    
    See Also:
    
    Dragdrop overview and related methods, Drag create Example
  - getCanDrag
```
public java.lang.Boolean getCanDrag()
```
    Indicates whether this widget can initiate custom drag-and-drop operations (other than reposition or resize). Normally canDragReposition or canDragResize would be used instead of this property.
    Note: this property may be manipulated by higher-level dragging semantics.
    If useNativeDrag is true and this widget has been drawn, then this widget must be redrawn in order for a change of the value of this attribute to take effect.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Dragdrop overview and related methods, Drag create Example
  - setCanDragReposition
```
public void setCanDragReposition(java.lang.Boolean canDragReposition)
```
    Indicates whether this widget can be moved by a user of your application by simply dragging with the mouse.
    Note : This is an advanced setting
    
    Parameters:
    
    canDragReposition - Default value is false
    
    See Also:
    
    Dragdrop overview and related methods, Drag effects Example
  - getCanDragReposition
```
public java.lang.Boolean getCanDragReposition()
```
    Indicates whether this widget can be moved by a user of your application by simply dragging with the mouse.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Dragdrop overview and related methods, Drag effects Example
  - setCanDragResize
```
public void setCanDragResize(java.lang.Boolean canDragResize)
```
    Indicates whether this widget can be resized by dragging on the edges and/or corners of the widget with the mouse.
    Note : This is an advanced setting
    
    Parameters:
    
    canDragResize - Default value is false
    
    See Also:
    
    Dragdrop overview and related methods, Drag resize Example
  - getCanDragResize
```
public java.lang.Boolean getCanDragResize()
```
    Indicates whether this widget can be resized by dragging on the edges and/or corners of the widget with the mouse.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Dragdrop overview and related methods, Drag resize Example
  - setCanDragScroll
```
public void setCanDragScroll(boolean canDragScroll)
```
    If this Canvas is canAcceptDrop:true, when the user drags a droppable widget over an edge of the widget, should we scroll to show the rest of the widget's content? Returned from canvas.shouldDragScroll() if there are scrollbars.
    Note : This is an advanced setting
    
    Parameters:
    
    canDragScroll - Default value is true
    
    See Also:
    
    shouldDragScroll()
  - getCanDragScroll
```
public boolean getCanDragScroll()
```
    If this Canvas is canAcceptDrop:true, when the user drags a droppable widget over an edge of the widget, should we scroll to show the rest of the widget's content? Returned from canvas.shouldDragScroll() if there are scrollbars.
    
    Returns:
    
    boolean
    
    See Also:
    
    shouldDragScroll()
  - setCanDrop
```
public void setCanDrop(java.lang.Boolean canDrop)
```
    Indicates that this object can be dropped on top of other widgets. Only valid if canDrag or canDragReposition is true.
    Note : This is an advanced setting
    
    Parameters:
    
    canDrop - Default value is false
    
    See Also:
    
    Dragdrop overview and related methods, Drag create Example
  - getCanDrop
```
public java.lang.Boolean getCanDrop()
```
    Indicates that this object can be dropped on top of other widgets. Only valid if canDrag or canDragReposition is true.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Dragdrop overview and related methods, Drag create Example
  - setCanDropBefore
```
public void setCanDropBefore(java.lang.Boolean canDropBefore)
```
    When explicitly set to false, disallows drop before this member in the Layout.
    Note : This is an advanced setting
    
    Parameters:
    
    canDropBefore - Default value is null
    
    See Also:
    
    Layout, LayoutMember overview and related methods
  - getCanDropBefore
```
public java.lang.Boolean getCanDropBefore()
```
    When explicitly set to false, disallows drop before this member in the Layout.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Layout, LayoutMember overview and related methods
  - setCanFocus
```
public void setCanFocus(java.lang.Boolean canFocus)
```
    Can this widget be allowed to become the target of keyboard events?
    If canFocus is unset (the default), only scrollable widgets with visible scrollbars are focusable, to allow for keyboard scrolling.
    A widget normally receives focus by being clicked on or tabbed to.
    
    If this method is called after the component has been drawn/initialized: Change whether a widget can accept keyboard focus.
    Note : This is an advanced setting
    
    Parameters:
    
    canFocus - whether the widget should now accept focus. Default value is null
    
    See Also:
    
    Focus overview and related methods, Focus & Tabbing Example
  - getCanFocus
```
public java.lang.Boolean getCanFocus()
```
    Can this widget be allowed to become the target of keyboard events?
    If canFocus is unset (the default), only scrollable widgets with visible scrollbars are focusable, to allow for keyboard scrolling.
    A widget normally receives focus by being clicked on or tabbed to.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Focus overview and related methods, Focus & Tabbing Example
  - setCanHover
```
public void setCanHover(java.lang.Boolean canHover)
```
    Will this Canvas fire hover events when the user hovers over it, or one of its children?
    
    Parameters:
    
    canHover - Default value is null
    
    See Also:
    
    setShowHover(java.lang.Boolean), HoverEvent
  - getCanHover
```
public java.lang.Boolean getCanHover()
```
    Will this Canvas fire hover events when the user hovers over it, or one of its children?
    
    Returns:
    
    Boolean
    
    See Also:
    
    getShowHover(), HoverEvent
  - setCanSelectText
```
public void setCanSelectText(java.lang.Boolean canSelectText)
```
    Whether native drag selection of contained text is allowed within this Canvas.
    Note that setting this property to false will not avoid text selection which is initiated outside this Canvas from continuing into this Canvas, even if text selection began in another Canvas.
    Note : This is an advanced setting
    
    Parameters:
    
    canSelectText - Default value is false
  - getCanSelectText
```
public java.lang.Boolean getCanSelectText()
```
    Whether native drag selection of contained text is allowed within this Canvas.
    Note that setting this property to false will not avoid text selection which is initiated outside this Canvas from continuing into this Canvas, even if text selection began in another Canvas.
    
    Returns:
    
    Boolean
  - getCanvasItem
```
public CanvasItem getCanvasItem()
                         throws java.lang.IllegalStateException
```
    If this canvas is being displayed in a CanvasItem, this property will be set to point at the item. Otherwise this property will be null.
    Note : This method should be called only after the widget has been rendered.
    
    Returns:
    
    CanvasItem
    
    Throws:
    
    java.lang.IllegalStateException - if this widget has not yet been rendered.
  - getChildren
```
public Canvas[] getChildren()
```
    Array of all Canvii that are immediate children of this Canvas.
    Use addChild() and removeChild() to add and remove children after a Canvas has been created/drawn.
    
    Returns:
    
    Canvas...
    
    See Also:
    
    Containment overview and related methods
  - setChildrenResizeSnapAlign
```
public void setChildrenResizeSnapAlign(java.lang.Boolean childrenResizeSnapAlign)
```
    Flag to disable snapping to alignment when children of this Canvas are resized
    
    Parameters:
    
    childrenResizeSnapAlign - Default value is null
  - getChildrenResizeSnapAlign
```
public java.lang.Boolean getChildrenResizeSnapAlign()
```
    Flag to disable snapping to alignment when children of this Canvas are resized
    
    Returns:
    
    Boolean
  - setChildrenSnapAlign
```
public void setChildrenSnapAlign(java.lang.Boolean childrenSnapAlign)
```
    If enabled while childrenSnapToGrid is enabled, children dragged within this Canvas will also snap to positions where their edges or center lines would be aligned with the edges or centers of other components, and lines will be shown to point out the possible alignment (with appearance controlled by snapAlignCenterLineStyle and snapAlignEdgeLineStyle respectively.
    By default, edge- or center-snapping is enabled for all components, but the set of eligible components can be explicitly set via snapAlignCandidates.
    See also childrenSnapCenterAlign and childrenSnapEdgeAlign for enabling or disabling center alignment or edge alignment individually.
    
    Parameters:
    
    childrenSnapAlign - Default value is null
  - getChildrenSnapAlign
```
public java.lang.Boolean getChildrenSnapAlign()
```
    If enabled while childrenSnapToGrid is enabled, children dragged within this Canvas will also snap to positions where their edges or center lines would be aligned with the edges or centers of other components, and lines will be shown to point out the possible alignment (with appearance controlled by snapAlignCenterLineStyle and snapAlignEdgeLineStyle respectively.
    By default, edge- or center-snapping is enabled for all components, but the set of eligible components can be explicitly set via snapAlignCandidates.
    See also childrenSnapCenterAlign and childrenSnapEdgeAlign for enabling or disabling center alignment or edge alignment individually.
    
    Returns:
    
    Boolean
  - setChildrenSnapCenterAlign
```
public void setChildrenSnapCenterAlign(java.lang.Boolean childrenSnapCenterAlign)
```
    See childrenSnapAlign. This setting enables or disables snapping on center alignment only.
    
    Parameters:
    
    childrenSnapCenterAlign - Default value is null
  - getChildrenSnapCenterAlign
```
public java.lang.Boolean getChildrenSnapCenterAlign()
```
    See childrenSnapAlign. This setting enables or disables snapping on center alignment only.
    
    Returns:
    
    Boolean
  - setChildrenSnapEdgeAlign
```
public void setChildrenSnapEdgeAlign(java.lang.Boolean childrenSnapEdgeAlign)
```
    See childrenSnapAlign. This setting enables or disables snapping on edge alignment only.
    
    Parameters:
    
    childrenSnapEdgeAlign - Default value is null
  - getChildrenSnapEdgeAlign
```
public java.lang.Boolean getChildrenSnapEdgeAlign()
```
    See childrenSnapAlign. This setting enables or disables snapping on edge alignment only.
    
    Returns:
    
    Boolean
  - setChildrenSnapResizeToGrid
```
public void setChildrenSnapResizeToGrid(java.lang.Boolean childrenSnapResizeToGrid)
```
    If true, causes this canvas's children to snap to its grid when resizing. This behavior can be overridden on a per-child basis by setting the snapToGrid or snapResizeToGrid value on the child.
    
    Parameters:
    
    childrenSnapResizeToGrid - Default value is null
    
    See Also:
    
    Dragdrop overview and related methods
  - getChildrenSnapResizeToGrid
```
public java.lang.Boolean getChildrenSnapResizeToGrid()
```
    If true, causes this canvas's children to snap to its grid when resizing. This behavior can be overridden on a per-child basis by setting the snapToGrid or snapResizeToGrid value on the child.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Dragdrop overview and related methods
  - setChildrenSnapToGrid
```
public void setChildrenSnapToGrid(java.lang.Boolean childrenSnapToGrid)
```
    If true, causes this canvas's children to snap to its grid when dragging. This behavior can be overridden on a per-child basis by setting the snapToGrid value on the child.
    
    Parameters:
    
    childrenSnapToGrid - Default value is null
    
    See Also:
    
    Dragdrop overview and related methods
  - getChildrenSnapToGrid
```
public java.lang.Boolean getChildrenSnapToGrid()
```
    If true, causes this canvas's children to snap to its grid when dragging. This behavior can be overridden on a per-child basis by setting the snapToGrid value on the child.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Dragdrop overview and related methods
  - getComponentMask
```
public Canvas getComponentMask()
                        throws java.lang.IllegalStateException
```
    Automatically generated mask canvas displayed when showComponentMask() is called.
    For an overview of how to use and configure AutoChildren, see Using AutoChildren.
    
    Returns:
    
    Canvas
    
    Throws:
    
    java.lang.IllegalStateException - if this widget has not yet been rendered.
    
    See Also:
    
    getComponentMaskDefaults()
  - setComponentMaskDefaults
```
public void setComponentMaskDefaults(Canvas componentMaskDefaults)
                              throws java.lang.IllegalStateException
```
    Defaults for the componentMask autoChild. Default properties include backgroundColor being set to "black" and opacity being set to 20.
    
    Parameters:
    
    componentMaskDefaults - Default value is {...}
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    SGWTProperties
  - getComponentMaskDefaults
```
public Canvas getComponentMaskDefaults()
```
    Defaults for the componentMask autoChild. Default properties include backgroundColor being set to "black" and opacity being set to 20.
    
    Returns:
    
    Canvas
  - setContents
```
public void setContents(java.lang.String contents)
```
    The contents of a canvas or label widget. Any HTML string is acceptable.
    
    If this method is called after the component has been drawn/initialized: Changes the contents of a widget to newContents, an HTML string.
    When dynamicContents is set, setContents() can also be called with no arguments to cause contents to be re-evaluated.
    Note : This is an advanced setting
    
    Parameters:
    
    contents - an HTML string to be set as the contents of this widget See HTMLString . Default value is " "
    
    See Also:
    
    setDynamicContents(java.lang.Boolean)
  - getContents
```
public java.lang.String getContents()
```
    The contents of a canvas or label widget. Any HTML string is acceptable.
    
    Returns:
    
    Returns the contents of a Canvas. The contents are an HTML string. See HTMLString
    
    See Also:
    
    getDynamicContents()
  - setContextMenu
```
public void setContextMenu(Menu contextMenu)
```
    Context menu to show for this object, an instance of the Menu widget.
    Note: if destroy() is called on a canvas, any specified context menu is not automatically destroyed as well. This is in contrast to MenuButtons which automatically destroy their specified MenuButton.menu by default. The behavior is intentional as context menus are commonly reused across components.
    Note : This is an advanced setting
    
    Parameters:
    
    contextMenu - Default value is null
    
    See Also:
    
    ShowContextMenuEvent, Cues overview and related methods, Context menus Example
  - getContextMenu
```
public Menu getContextMenu()
```
    Context menu to show for this object, an instance of the Menu widget.
    Note: if destroy() is called on a canvas, any specified context menu is not automatically destroyed as well. This is in contrast to MenuButtons which automatically destroy their specified MenuButton.menu by default. The behavior is intentional as context menus are commonly reused across components.
    
    Returns:
    
    Menu
    
    See Also:
    
    ShowContextMenuEvent, Cues overview and related methods, Context menus Example
  - setCursor
```
public void setCursor(Cursor cursor)
```
    Specifies the cursor image to display when the mouse pointer is over this widget. It corresponds to the CSS cursor attribute. See Cursor type for different cursors.
    See also disabledCursor and noDropCursor.
    
    If this method is called after the component has been drawn/initialized: Sets the cursor for this widget to cursor. See the cursor property for possible values.
    Note : This is an advanced setting
    
    Parameters:
    
    cursor - new cursor. Default value is Canvas.DEFAULT
    
    See Also:
    
    Cues overview and related methods, Drag create Example, Cursors Example
  - getCursor
```
public Cursor getCursor()
```
    Specifies the cursor image to display when the mouse pointer is over this widget. It corresponds to the CSS cursor attribute. See Cursor type for different cursors.
    See also disabledCursor and noDropCursor.
    
    Returns:
    
    Cursor
    
    See Also:
    
    Cues overview and related methods, Drag create Example, Cursors Example
  - setDataPath
```
public void setDataPath(java.lang.String dataPath)
```
    A dataPath may be specified on any canvas. This provides a straightforward way to display or edit complex nested data.
    For components which support displaying or editing data values, (such as DynamicForm or ListGrid components), the dataPath may be set to specify how the components data is accessed. In this case the dataPath essentially specifies a nested object to edit - typically a path to a field value within a dataSource record. Note that a ValuesManager will be required to handle connecting the dataBoundcomponent to the appropriate sub object. This may be explicitly specified on the component, or a parent of the component, or automatically generated if a DataSource is specified on either the component or a parent thereof.
    To provide a simple example - if a complex object existed with the following format:
```
  { companyName:"Some Company",
    address:{    street:"123 Main Street", city:"New York", state:"NY"  }
  }
  
```
    a developer could specify a DynamicForm instance with 'dataPath' set to "address" to edit the nested address object:
```
  isc.ValuesManager.create({
       ID:'vm',
       values: { companyName:"Some Company",
               address:{    street:"123 Main Street", city:"New York", state:"NY"  }
       }
  });
 
  isc.DynamicForm.create({
       valuesManager:"vm",
       dataPath:"address",
       items:[{name:"street"}, {name:"city"}, {name:"state"}]
  });
  
```
    If a component is specified with a dataPath attribute but does not have an explicitly specified valuesManager, it will check its parent element chain for a specified valuesManager and automatically bind to that. This simplifies binding multiple components used to view or edit a nested data structure as the valuesManager needs only be defined once at a reasonably high level component. Here's an example of this approach:
```
  isc.ValuesManager.create({
       ID:'vm',
       values: { companyName:"Some Company",
               address:{    street:"123 Main Street", city:"New York", state:"NY"  }
       }
  });
 
  isc.Layout.create({
       valuesManager:"vm",
       members:[
           isc.DynamicForm.create({
               dataPath:"/",
               items:[{name:"companyName"}]
           }),
           isc.DynamicForm.create({
               dataPath:"address",
               items:[{name:"street"}, {name:"city"}, {name:"state"}]
           })
       ]
  });
  
```
    Note that in this case the valuesManager is specified on a Layout, which has no 'values' management behavior of its own, but contains items with a specified dataPath which do. In this example you'd see 2 forms allowing editing of the nested data structure.
    dataPaths from multiple nested components may also be combined. For example:
```
  isc.ValuesManager.create({
       ID:'vm',
       values: { companyName:"Some Company",
               address:{    street:"123 Main Street", city:"New York", state:"NY"  }
               parentCompany:{
                   companyName:"Some Corporation",
                   address:{   street:"1 High Street", city:"New York", state:"NY" }
               }
       }
  });
 
  isc.Layout.create({
       valuesManager:"vm",
       members:[
           isc.DynamicForm.create({
               dataPath:"/",
               items:[{name:"companyName"}]
           }),
           isc.DynamicForm.create({
               dataPath:"address",
               items:[{name:"street"}, {name:"city"}, {name:"state"}]
           }),
           isc.Layout.create({
               dataPath:"parentCompany",
               members:[
                   isc.DynamicForm.create({
                       dataPath:"/",
                       items:[{name:"companyName", type:"staticText"}]
                   }),
                   isc.DetailViewer.create({
                       dataPath:"address",
                       fields:[{name:"street", name:"city", name:"state"}]
                   })
               ]
           })
       ]
  });
  
```
    In this example the detailViewer will display data from the parentCompany.address object within the base record.
    Note that if a component has a specified dataSource and shows child components with a specified dataPath, there is no need to explicitly declare a valuesManager at all. If a component with a dataPath has a dataSource, or an ancestor with a dataSource specified, it will, a valuesManager will automatically be generated on the higher level component (and be available as component.valuesManager).
    
    If this method is called after the component has been drawn/initialized: Setter for the dataPath attribute. This method may be called directly at runtime to set the dataPath on a component, and will also be re-run automatically whenever a canvas' parent changes due to a call to addChild(). This method handles automatically binding the component to the appropriate valuesManager if necessary.
    Note : This is an advanced setting
    Parameters:
    
    dataPath - new dataPath See DataPath . Default value is null
  - getDataPath
```
public java.lang.String getDataPath()
```
    A dataPath may be specified on any canvas. This provides a straightforward way to display or edit complex nested data.
    For components which support displaying or editing data values, (such as DynamicForm or ListGrid components), the dataPath may be set to specify how the components data is accessed. In this case the dataPath essentially specifies a nested object to edit - typically a path to a field value within a dataSource record. Note that a ValuesManager will be required to handle connecting the dataBoundcomponent to the appropriate sub object. This may be explicitly specified on the component, or a parent of the component, or automatically generated if a DataSource is specified on either the component or a parent thereof.
    To provide a simple example - if a complex object existed with the following format:
```
  { companyName:"Some Company",
    address:{    street:"123 Main Street", city:"New York", state:"NY"  }
  }
  
```
    a developer could specify a DynamicForm instance with 'dataPath' set to "address" to edit the nested address object:
```
  isc.ValuesManager.create({
       ID:'vm',
       values: { companyName:"Some Company",
               address:{    street:"123 Main Street", city:"New York", state:"NY"  }
       }
  });
 
  isc.DynamicForm.create({
       valuesManager:"vm",
       dataPath:"address",
       items:[{name:"street"}, {name:"city"}, {name:"state"}]
  });
  
```
    If a component is specified with a dataPath attribute but does not have an explicitly specified valuesManager, it will check its parent element chain for a specified valuesManager and automatically bind to that. This simplifies binding multiple components used to view or edit a nested data structure as the valuesManager needs only be defined once at a reasonably high level component. Here's an example of this approach:
```
  isc.ValuesManager.create({
       ID:'vm',
       values: { companyName:"Some Company",
               address:{    street:"123 Main Street", city:"New York", state:"NY"  }
       }
  });
 
  isc.Layout.create({
       valuesManager:"vm",
       members:[
           isc.DynamicForm.create({
               dataPath:"/",
               items:[{name:"companyName"}]
           }),
           isc.DynamicForm.create({
               dataPath:"address",
               items:[{name:"street"}, {name:"city"}, {name:"state"}]
           })
       ]
  });
  
```
    Note that in this case the valuesManager is specified on a Layout, which has no 'values' management behavior of its own, but contains items with a specified dataPath which do. In this example you'd see 2 forms allowing editing of the nested data structure.
    dataPaths from multiple nested components may also be combined. For example:
```
  isc.ValuesManager.create({
       ID:'vm',
       values: { companyName:"Some Company",
               address:{    street:"123 Main Street", city:"New York", state:"NY"  }
               parentCompany:{
                   companyName:"Some Corporation",
                   address:{   street:"1 High Street", city:"New York", state:"NY" }
               }
       }
  });
 
  isc.Layout.create({
       valuesManager:"vm",
       members:[
           isc.DynamicForm.create({
               dataPath:"/",
               items:[{name:"companyName"}]
           }),
           isc.DynamicForm.create({
               dataPath:"address",
               items:[{name:"street"}, {name:"city"}, {name:"state"}]
           }),
           isc.Layout.create({
               dataPath:"parentCompany",
               members:[
                   isc.DynamicForm.create({
                       dataPath:"/",
                       items:[{name:"companyName", type:"staticText"}]
                   }),
                   isc.DetailViewer.create({
                       dataPath:"address",
                       fields:[{name:"street", name:"city", name:"state"}]
                   })
               ]
           })
       ]
  });
  
```
    In this example the detailViewer will display data from the parentCompany.address object within the base record.
    Note that if a component has a specified dataSource and shows child components with a specified dataPath, there is no need to explicitly declare a valuesManager at all. If a component with a dataPath has a dataSource, or an ancestor with a dataSource specified, it will, a valuesManager will automatically be generated on the higher level component (and be available as component.valuesManager).
    Returns:
    
    See DataPath
  - setDefaultHeight
```
public void setDefaultHeight(int defaultHeight)
```
    For custom components, establishes a default height for the component.
    For a component that should potentially be sized automatically by a Layout, set this property rather than height directly, because Layouts regard a height setting as an explicit size that shouldn't be changed.
    Note : This is an advanced setting
    
    Parameters:
    
    defaultHeight - Default value is 100
    
    See Also:
    
    Sizing overview and related methods
  - getDefaultHeight
```
public int getDefaultHeight()
```
    For custom components, establishes a default height for the component.
    For a component that should potentially be sized automatically by a Layout, set this property rather than height directly, because Layouts regard a height setting as an explicit size that shouldn't be changed.
    
    Returns:
    
    int
    
    See Also:
    
    Sizing overview and related methods
  - setDefaultWidth
```
public void setDefaultWidth(int defaultWidth)
```
    For custom components, establishes a default width for the component.
    For a component that should potentially be sized automatically by a Layout, set this property rather than width directly, because Layouts regard a width setting as an explicit size that shouldn't be changed.
    Note : This is an advanced setting
    
    Parameters:
    
    defaultWidth - Default value is 100
    
    See Also:
    
    Sizing overview and related methods
  - getDefaultWidth
```
public int getDefaultWidth()
```
    For custom components, establishes a default width for the component.
    For a component that should potentially be sized automatically by a Layout, set this property rather than width directly, because Layouts regard a width setting as an explicit size that shouldn't be changed.
    
    Returns:
    
    int
    
    See Also:
    
    Sizing overview and related methods
  - getDestroyed
```
public java.lang.Boolean getDestroyed()
                               throws java.lang.IllegalStateException
```
    If this property is set to true, the destroy() method has been called on this canvas. This implies the canvas is no longer valid. Its ID has been removed from global scope, and calling standard canvas APIs on it is likely to result in errors.
    Note : This method should be called only after the widget has been rendered.
    
    Returns:
    
    Boolean
    
    Throws:
    
    java.lang.IllegalStateException - if this widget has not yet been rendered.
    
    See Also:
    
    BaseWidget.destroy()
  - getDestroying
```
public java.lang.Boolean getDestroying()
                                throws java.lang.IllegalStateException
```
    This property is set to true when the destroy() method is called on a widget. If this property is true, but destroyed is not, this indicates the canvas is in the process of being destroyed.
    Note : This method should be called only after the widget has been rendered.
    
    Returns:
    
    Boolean
    
    Throws:
    
    java.lang.IllegalStateException - if this widget has not yet been rendered.
    
    See Also:
    
    BaseWidget.destroy()
  - setDisabledCursor
```
public void setDisabledCursor(Cursor disabledCursor)
```
    Specifies the cursor image to display when the mouse pointer is over this widget if this widget is disabled. It corresponds to the CSS cursor attribute. See Cursor type for different cursors.
    Note : This is an advanced setting
    
    Parameters:
    
    disabledCursor - Default value is Canvas.DEFAULT
    
    See Also:
    
    Cues overview and related methods
  - getDisabledCursor
```
public Cursor getDisabledCursor()
```
    Specifies the cursor image to display when the mouse pointer is over this widget if this widget is disabled. It corresponds to the CSS cursor attribute. See Cursor type for different cursors.
    
    Returns:
    
    Cursor
    
    See Also:
    
    Cues overview and related methods
  - setDisableTouchScrollingForDrag
```
public void setDisableTouchScrollingForDrag(java.lang.Boolean disableTouchScrollingForDrag)
                                     throws java.lang.IllegalStateException
```
    Disables useTouchScrolling whenever a built-in drag operation has been enabled which is known to be non-functional if touch scrolling is enabled. Default behavior is to leave touch scrolling enabled even if it makes other enabled drag operations non-functional, since any accessible application must provide an alternative way to perform drag and drop operations anyway.
    disableTouchScrollingForDrag exists so that applications can change the default setting on a per-component basis (via setDefaultProperties), in order to make a system-wide or per-component-type decision about whether to favor touch scrolling vs retaining the ability to drag and drop via finger drags, instead of having to set useTouchScrolling on each individual instance.
    See the Mobile Development overview for more background information.
    
    Parameters:
    
    disableTouchScrollingForDrag - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Scrolling overview and related methods
  - getDisableTouchScrollingForDrag
```
public java.lang.Boolean getDisableTouchScrollingForDrag()
```
    Disables useTouchScrolling whenever a built-in drag operation has been enabled which is known to be non-functional if touch scrolling is enabled. Default behavior is to leave touch scrolling enabled even if it makes other enabled drag operations non-functional, since any accessible application must provide an alternative way to perform drag and drop operations anyway.
    disableTouchScrollingForDrag exists so that applications can change the default setting on a per-component basis (via setDefaultProperties), in order to make a system-wide or per-component-type decision about whether to favor touch scrolling vs retaining the ability to drag and drop via finger drags, instead of having to set useTouchScrolling on each individual instance.
    See the Mobile Development overview for more background information.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Scrolling overview and related methods
  - setDoubleClickDelay
```
public void setDoubleClickDelay(int doubleClickDelay)
```
    Amount of time (in milliseconds) between which two clicks are considered a single click
    Note : This is an advanced setting
    
    Parameters:
    
    doubleClickDelay - Default value is 250
  - getDoubleClickDelay
```
public int getDoubleClickDelay()
```
    Amount of time (in milliseconds) between which two clicks are considered a single click
    
    Returns:
    
    int
  - setDragAppearance
```
public void setDragAppearance(DragAppearance dragAppearance)
```
    Visual appearance to show when the object is being dragged. May be overridden for dragResize or dragReposition events via dragResizeAppearance and dragRepositionAppearance.
    Note : This is an advanced setting
    
    Parameters:
    
    dragAppearance - Default value is EventHandler.OUTLINE
    
    See Also:
    
    Dragdrop overview and related methods
  - getDragAppearance
```
public DragAppearance getDragAppearance()
```
    Visual appearance to show when the object is being dragged. May be overridden for dragResize or dragReposition events via dragResizeAppearance and dragRepositionAppearance.
    
    Returns:
    
    DragAppearance
    
    See Also:
    
    Dragdrop overview and related methods
  - setDragIntersectStyle
```
public void setDragIntersectStyle(DragIntersectStyle dragIntersectStyle)
```
    This indicates how the system will test for droppable targets: either by intersection with the mouse or intersection with the rectangle of the dragMoveTarget.
    Note : This is an advanced setting
    
    Parameters:
    
    dragIntersectStyle - Default value is "mouse"
    
    See Also:
    
    Dragdrop overview and related methods
  - getDragIntersectStyle
```
public DragIntersectStyle getDragIntersectStyle()
```
    This indicates how the system will test for droppable targets: either by intersection with the mouse or intersection with the rectangle of the dragMoveTarget.
    
    Returns:
    
    DragIntersectStyle
    
    See Also:
    
    Dragdrop overview and related methods
  - setDragMaskType
```
public void setDragMaskType(DragMaskType dragMaskType)
```
    This property controls what kind of mask is used in case useDragMask is enabled.
    
    Parameters:
    
    dragMaskType - Default value is "div"
    
    See Also:
    
    Dragdrop overview and related methods
  - getDragMaskType
```
public DragMaskType getDragMaskType()
```
    This property controls what kind of mask is used in case useDragMask is enabled.
    
    Returns:
    
    DragMaskType
    
    See Also:
    
    Dragdrop overview and related methods
  - setDragOpacity
```
public void setDragOpacity(java.lang.Integer dragOpacity)
```
    If this widget has dragAppearance "target", this value specifies the opacity to render the target while it is being dragged. A null value implies we do not modify the opacity.
    Note : This is an advanced setting
    
    Parameters:
    
    dragOpacity - Default value is null
    
    See Also:
    
    Dragdrop overview and related methods, Drag effects Example
  - getDragOpacity
```
public java.lang.Integer getDragOpacity()
```
    If this widget has dragAppearance "target", this value specifies the opacity to render the target while it is being dragged. A null value implies we do not modify the opacity.
    
    Returns:
    
    Integer
    
    See Also:
    
    Dragdrop overview and related methods, Drag effects Example
  - setDragRepositionAppearance
```
public void setDragRepositionAppearance(DragAppearance dragRepositionAppearance)
```
    If canDragReposition is true, this attributes specifies the visual appearance to show during drag reposition. If unset dragAppearance will be used.
    Note : This is an advanced setting
    
    Parameters:
    
    dragRepositionAppearance - Default value is null
    
    See Also:
    
    Dragdrop overview and related methods
  - getDragRepositionAppearance
```
public DragAppearance getDragRepositionAppearance()
```
    If canDragReposition is true, this attributes specifies the visual appearance to show during drag reposition. If unset dragAppearance will be used.
    
    Returns:
    
    DragAppearance
    
    See Also:
    
    Dragdrop overview and related methods
  - setDragRepositionCursor
```
public void setDragRepositionCursor(Cursor dragRepositionCursor)
```
    Cursor to switch to if the mouse is over a widget that is drag repositionable.
    Note : This is an advanced setting
    
    Parameters:
    
    dragRepositionCursor - Default value is Canvas.MOVE
    
    See Also:
    
    Dragdrop overview and related methods
  - getDragRepositionCursor
```
public Cursor getDragRepositionCursor()
```
    Cursor to switch to if the mouse is over a widget that is drag repositionable.
    
    Returns:
    
    Cursor
    
    See Also:
    
    Dragdrop overview and related methods
  - setDragResizeAppearance
```
public void setDragResizeAppearance(DragAppearance dragResizeAppearance)
```
    If canDragResize is true, this attributes specifies the visual appearance to show during drag resize. If unset dragAppearance will be used.
    Note : This is an advanced setting
    
    Parameters:
    
    dragResizeAppearance - Default value is null
    
    See Also:
    
    Dragdrop overview and related methods
  - getDragResizeAppearance
```
public DragAppearance getDragResizeAppearance()
```
    If canDragResize is true, this attributes specifies the visual appearance to show during drag resize. If unset dragAppearance will be used.
    
    Returns:
    
    DragAppearance
    
    See Also:
    
    Dragdrop overview and related methods
  - setDragScrollDelay
```
public void setDragScrollDelay(int dragScrollDelay)
```
    If this widget supports drag-scrolling, This property specifies how many ms the user must hover over the drag-scroll threshold before scrolling begins.
    Note : This is an advanced setting
    
    Parameters:
    
    dragScrollDelay - Default value is 100
  - getDragScrollDelay
```
public int getDragScrollDelay()
```
    If this widget supports drag-scrolling, This property specifies how many ms the user must hover over the drag-scroll threshold before scrolling begins.
    
    Returns:
    
    int
  - setDragStartDistance
```
public void setDragStartDistance(int dragStartDistance)
```
    Number of pixels the cursor needs to move before the EventHandler starts a drag operation.
    Note : This is an advanced setting
    
    Parameters:
    
    dragStartDistance - Default value is 5
    
    See Also:
    
    Dragdrop overview and related methods
  - getDragStartDistance
```
public int getDragStartDistance()
```
    Number of pixels the cursor needs to move before the EventHandler starts a drag operation.
    
    Returns:
    
    int
    
    See Also:
    
    Dragdrop overview and related methods
  - setDragType
```
public void setDragType(java.lang.String dragType)
```
    Sets a dragType for this widget used, to be compared to dropTypes on possible drop target widgets. See dropTypes for a full explanation.
    Note : This is an advanced setting
    
    Parameters:
    
    dragType - Default value is null
    
    See Also:
    
    Dragdrop overview and related methods
  - getDragType
```
public java.lang.String getDragType()
```
    Sets a dragType for this widget used, to be compared to dropTypes on possible drop target widgets. See dropTypes for a full explanation.
    
    Returns:
    
    String
    
    See Also:
    
    Dragdrop overview and related methods
  - setDropTypes
```
public void setDropTypes(java.lang.String... dropTypes)
```
    When a drag and drop interaction occurs, if a dragType is configured on the source widget, it is compared to the dropTypes configured on the target widget, and a drop is only allowed if the dragType is listed in the target widget's dropTypes array.
    The default setting means any dragType is eligible for dropping on this widget, including no dragType setting.
    See also willAcceptDrop() for dynamic determination of drop eligibility.
    Note : This is an advanced setting
    
    Parameters:
    
    dropTypes - Default value is Canvas.ANYTHING
    
    See Also:
    
    Dragdrop overview and related methods
  - getDropTypes
```
public java.lang.String[] getDropTypes()
```
    When a drag and drop interaction occurs, if a dragType is configured on the source widget, it is compared to the dropTypes configured on the target widget, and a drop is only allowed if the dragType is listed in the target widget's dropTypes array.
    The default setting means any dragType is eligible for dropping on this widget, including no dragType setting.
    See also willAcceptDrop() for dynamic determination of drop eligibility.
    
    Returns:
    
    String...
    
    See Also:
    
    Dragdrop overview and related methods
  - setDropTypes
```
public void setDropTypes(java.lang.String dropTypes)
```
    When a drag and drop interaction occurs, if a dragType is configured on the source widget, it is compared to the dropTypes configured on the target widget, and a drop is only allowed if the dragType is listed in the target widget's dropTypes array.
    The default setting means any dragType is eligible for dropping on this widget, including no dragType setting.
    See also willAcceptDrop() for dynamic determination of drop eligibility.
    Note : This is an advanced setting
    
    Parameters:
    
    dropTypes - Default value is Canvas.ANYTHING
    
    See Also:
    
    Dragdrop overview and related methods
  - getDropTypesAsString
```
public java.lang.String getDropTypesAsString()
```
    When a drag and drop interaction occurs, if a dragType is configured on the source widget, it is compared to the dropTypes configured on the target widget, and a drop is only allowed if the dragType is listed in the target widget's dropTypes array.
    The default setting means any dragType is eligible for dropping on this widget, including no dragType setting.
    See also willAcceptDrop() for dynamic determination of drop eligibility.
    
    Returns:
    
    String
    
    See Also:
    
    Dragdrop overview and related methods
  - setDynamicContents
```
public void setDynamicContents(java.lang.Boolean dynamicContents)
```
    Dynamic contents allows the contents string to be treated as a simple, but powerful template. When this attribute is set to true, expressions of the form ${arbitrary JS here} are replaced by the result of the evaluation of the JS code inside the curly brackets. This evaluation happens at draw time. If you want to trigger a re-evaluation of the expressions in the contents string you can call markForRedraw() on the canvas.
    You can use this feature to build some simple custom components. For example, let's say you want to show the value of a Slider in a Canvas somewhere on the screen. You can do this by observing the valueChanged() method on the slider and calling setContents() on your canvas with the new string or you can set the contents of the canvas to something like:
    "The slider value is ${sliderInstance.getValue()}."
    Next you set dynamicContents: true on the canvas, observe valueChanged() on the slider and call canvas.markForRedraw() in that observation. This approach is cleaner than setContents() when the Canvas is aggregating several values or dynamic expressions. Like so:
```
  Slider.create({
      ID: "mySlider"
  });
 
  Canvas.create({
      ID: "myCanvas",
      dynamicContents: true,
      contents: "The slider value is ${mySlider.getValue()}."
  });
 
  myCanvas.observe(mySlider, "valueChanged",
                   "observer.markForRedraw()");
  
```
    You can embed an arbitrary number of dynamic expressions in the contents string. The search and replace is optimized for speed.
    If an error occurs during the evaluation of one of the expressions, a warning is logged to the ISC Developer Console and the error string is embedded in place of the expected value in the Canvas.
    The value of a function is its return value. The value of any variable is the same as that returned by its toString() representation.
    Inside the evaluation contentext, this points to the canvas instance that has the dynamicContents string as its contents - in other words the canvas instance on which the template is declared.
    Note : This is an advanced setting
    Parameters:
    
    dynamicContents - Default value is false
    
    See Also:
    
    setContents(java.lang.String), com.smartgwt.client.widgets.Canvas#setDynamicContentsVars
  - getDynamicContents
```
public java.lang.Boolean getDynamicContents()
```
    Dynamic contents allows the contents string to be treated as a simple, but powerful template. When this attribute is set to true, expressions of the form ${arbitrary JS here} are replaced by the result of the evaluation of the JS code inside the curly brackets. This evaluation happens at draw time. If you want to trigger a re-evaluation of the expressions in the contents string you can call markForRedraw() on the canvas.
    You can use this feature to build some simple custom components. For example, let's say you want to show the value of a Slider in a Canvas somewhere on the screen. You can do this by observing the valueChanged() method on the slider and calling setContents() on your canvas with the new string or you can set the contents of the canvas to something like:
    "The slider value is ${sliderInstance.getValue()}."
    Next you set dynamicContents: true on the canvas, observe valueChanged() on the slider and call canvas.markForRedraw() in that observation. This approach is cleaner than setContents() when the Canvas is aggregating several values or dynamic expressions. Like so:
```
  Slider.create({
      ID: "mySlider"
  });
 
  Canvas.create({
      ID: "myCanvas",
      dynamicContents: true,
      contents: "The slider value is ${mySlider.getValue()}."
  });
 
  myCanvas.observe(mySlider, "valueChanged",
                   "observer.markForRedraw()");
  
```
    You can embed an arbitrary number of dynamic expressions in the contents string. The search and replace is optimized for speed.
    If an error occurs during the evaluation of one of the expressions, a warning is logged to the ISC Developer Console and the error string is embedded in place of the expected value in the Canvas.
    The value of a function is its return value. The value of any variable is the same as that returned by its toString() representation.
    Inside the evaluation contentext, this points to the canvas instance that has the dynamicContents string as its contents - in other words the canvas instance on which the template is declared.
    Returns:
    
    Boolean
    
    See Also:
    
    getContents(), com.smartgwt.client.widgets.Canvas#getDynamicContentsVars
  - setEdgeBackgroundColor
```
public void setEdgeBackgroundColor(java.lang.String edgeBackgroundColor)
                            throws java.lang.IllegalStateException
```
    Background color for the EdgedCanvas created to decorate this component. This can be used to provide an underlying "tint" color for translucent edge media
    
    Parameters:
    
    edgeBackgroundColor - See Color . Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
  - getEdgeBackgroundColor
```
public java.lang.String getEdgeBackgroundColor()
```
    Background color for the EdgedCanvas created to decorate this component. This can be used to provide an underlying "tint" color for translucent edge media
    
    Returns:
    
    See Color
  - setEdgeCenterBackgroundColor
```
public void setEdgeCenterBackgroundColor(java.lang.String edgeCenterBackgroundColor)
                                  throws java.lang.IllegalStateException
```
    Background color for the center section only. Can be used as a surrogate background color for the decorated Canvas, if the Canvas is set to partially overlap the edges and hence can't show a background color itself without occluding media.
    
    Parameters:
    
    edgeCenterBackgroundColor - See Color . Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
  - getEdgeCenterBackgroundColor
```
public java.lang.String getEdgeCenterBackgroundColor()
```
    Background color for the center section only. Can be used as a surrogate background color for the decorated Canvas, if the Canvas is set to partially overlap the edges and hence can't show a background color itself without occluding media.
    
    Returns:
    
    See Color
  - setEdgeImage
```
public void setEdgeImage(java.lang.String edgeImage)
                  throws java.lang.IllegalStateException
```
    Base name of images for edges. Extensions for each corner or edge piece will be added to this image URL, before the extension. For example, with the default base name of "edge.gif", the top-left corner image will be "edge_TL.gif".
    The full list of extensions is: "_TL", "_TR", "_BL", "_BR", "_T", "_L", "_B", "_R", "_center".
    
    Parameters:
    
    edgeImage - See SCImgURL . Default value is "[SKIN]edge.gif"
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Edges Example
  - getEdgeImage
```
public java.lang.String getEdgeImage()
```
    Base name of images for edges. Extensions for each corner or edge piece will be added to this image URL, before the extension. For example, with the default base name of "edge.gif", the top-left corner image will be "edge_TL.gif".
    The full list of extensions is: "_TL", "_TR", "_BL", "_BR", "_T", "_L", "_B", "_R", "_center".
    
    Returns:
    
    See SCImgURL
    
    See Also:
    
    Edges Example
  - setEdgeMarginSize
```
public void setEdgeMarginSize(int edgeMarginSize)
```
    How far into the edge of an object do we consider the "edge" for drag resize purposes?
    Note : This is an advanced setting
    
    Parameters:
    
    edgeMarginSize - Default value is 5
    
    See Also:
    
    Dragdrop overview and related methods, Drag resize Example
  - getEdgeMarginSize
```
public int getEdgeMarginSize()
```
    How far into the edge of an object do we consider the "edge" for drag resize purposes?
    
    Returns:
    
    int
    
    See Also:
    
    Dragdrop overview and related methods, Drag resize Example
  - setEdgeOffset
```
public void setEdgeOffset(java.lang.Integer edgeOffset)
                   throws java.lang.IllegalStateException
```
    Amount the contained Canvas should be offset. Defaults to edgeSize; set to less than edgeSize to allow the contained Canvas to overlap the edge and corner media.
    
    Parameters:
    
    edgeOffset - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Corners Example
  - getEdgeOffset
```
public java.lang.Integer getEdgeOffset()
```
    Amount the contained Canvas should be offset. Defaults to edgeSize; set to less than edgeSize to allow the contained Canvas to overlap the edge and corner media.
    
    Returns:
    
    Integer
    
    See Also:
    
    Corners Example
  - setEdgeOpacity
```
public void setEdgeOpacity(java.lang.Integer edgeOpacity)
                    throws java.lang.IllegalStateException
```
    Opacity of the edges. Defaults to matching this.opacity. if setOpacity() is called on a Canvas where edgeOpacity is set, edgeOpacity will be considered a percentage of the parent's opacity (so 50% opaque parent plus edgeOpacity 50 means 25% opaque edges)
    
    If this method is called after the component has been drawn/initialized: Set the edgeOpacity and mark the canvas for redraw
    
    Parameters:
    
    edgeOpacity - new edge-opacity level. Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Edges Example
  - getEdgeOpacity
```
public java.lang.Integer getEdgeOpacity()
```
    Opacity of the edges. Defaults to matching this.opacity. if setOpacity() is called on a Canvas where edgeOpacity is set, edgeOpacity will be considered a percentage of the parent's opacity (so 50% opaque parent plus edgeOpacity 50 means 25% opaque edges)
    
    Returns:
    
    Integer
    
    See Also:
    
    Edges Example
  - setEdgeShowCenter
```
public void setEdgeShowCenter(java.lang.Boolean edgeShowCenter)
                       throws java.lang.IllegalStateException
```
    Whether to show media in the center section, that is, behind the decorated Canvas.
    
    Parameters:
    
    edgeShowCenter - Default value is false
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Corners Example
  - getEdgeShowCenter
```
public java.lang.Boolean getEdgeShowCenter()
```
    Whether to show media in the center section, that is, behind the decorated Canvas.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Corners Example
  - setEdgeSize
```
public void setEdgeSize(int edgeSize)
                 throws java.lang.IllegalStateException
```
    Size in pixels for corners and edges
    
    Parameters:
    
    edgeSize - Default value is 10
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Edges Example
  - getEdgeSize
```
public int getEdgeSize()
```
    Size in pixels for corners and edges
    
    Returns:
    
    int
    
    See Also:
    
    Edges Example
  - getEditNode
```
public EditNode getEditNode()
                     throws java.lang.IllegalStateException
```
    The component's EditNode for a component that has been created by a Palette from a PaletteNode.
    Note : This method should be called only after the widget has been rendered.
    
    Returns:
    
    EditNode
    
    Throws:
    
    java.lang.IllegalStateException - if this widget has not yet been rendered.
  - getEditProxy
```
public EditProxy getEditProxy()
                       throws java.lang.IllegalStateException
```
    An EditProxy controls the behaviors of a component when it is placed into editing mode.
    The editProxy AutoChild is created when a component is first placed into edit mode via setEditMode().
    editProxy properties can be supplied on a PaletteNode or EditNode as editProxyProperties, but must be provided before the component is first placed into edit mode.
    Most editable components use a custom EditProxy. See the documentation for each class' editProxyConstructor to determine the class.
    For an overview of how to use and configure AutoChildren, see Using AutoChildren.
    
    Returns:
    
    EditProxy
    
    Throws:
    
    java.lang.IllegalStateException - if this widget has not yet been rendered.
    
    See Also:
    
    setEditMode(boolean)
  - setEditProxyConstructor
```
public void setEditProxyConstructor(java.lang.String editProxyConstructor)
                             throws java.lang.IllegalStateException
```
    Default class used to construct the EditProxy for this component when the component is first placed into edit mode.
    
    Parameters:
    
    editProxyConstructor - See SCClassName . Default value is "CanvasEditProxy"
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
  - getEditProxyConstructor
```
public java.lang.String getEditProxyConstructor()
```
    Default class used to construct the EditProxy for this component when the component is first placed into edit mode.
    
    Returns:
    
    See SCClassName
  - setExtraSpace
```
public void setExtraSpace(int extraSpace)
                   throws java.lang.IllegalStateException
```
    When this Canvas is included as a member in a Layout, extra blank space that should be left after this member in a Layout.
    
    Parameters:
    
    extraSpace - Default value is 0
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    LayoutSpacer, LayoutMember overview and related methods
  - getExtraSpace
```
public int getExtraSpace()
```
    When this Canvas is included as a member in a Layout, extra blank space that should be left after this member in a Layout.
    
    Returns:
    
    int
    
    See Also:
    
    LayoutSpacer, LayoutMember overview and related methods
  - setGroupBorderCSS
```
public void setGroupBorderCSS(java.lang.String groupBorderCSS)
                       throws java.lang.IllegalStateException
```
    Sets the style for the grouping frame around the canvas. Only necessary when isGroup is set to true.
    
    Parameters:
    
    groupBorderCSS - Default value is "2px solid black"
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Appearance overview and related methods
  - getGroupBorderCSS
```
public java.lang.String getGroupBorderCSS()
```
    Sets the style for the grouping frame around the canvas. Only necessary when isGroup is set to true.
    
    Returns:
    
    String
    
    See Also:
    
    Appearance overview and related methods
  - setGroupLabelBackgroundColor
```
public void setGroupLabelBackgroundColor(java.lang.String groupLabelBackgroundColor)
```
    If set, the background color of the grouping label. Only applicable when isGroup is set to true.
    This corresponds to the CSS background-color property on the grouping label. You can set this property to an RGB value (e.g. #22AAFF) or a named color (e.g. red) from a list of browser supported color names.
    The getter for this attribute, getGroupLabelBackgroundColor(), returns the color that will actually be used; i.e. if groupLabelBackgroundColor is left unset or is set to null, then getGroupLabelBackgroundColor() returns the color string that will be used.
    
    If this method is called after the component has been drawn/initialized: Setter for groupLabelBackgroundColor.
    
    Parameters:
    
    groupLabelBackgroundColor - the new grouping label background color. See CSSColor . Default value is null
    
    See Also:
    
    Appearance overview and related methods
  - getGroupLabelBackgroundColor
```
public java.lang.String getGroupLabelBackgroundColor()
```
    If set, the background color of the grouping label. Only applicable when isGroup is set to true.
    This corresponds to the CSS background-color property on the grouping label. You can set this property to an RGB value (e.g. #22AAFF) or a named color (e.g. red) from a list of browser supported color names.
    The getter for this attribute, getGroupLabelBackgroundColor(), returns the color that will actually be used; i.e. if groupLabelBackgroundColor is left unset or is set to null, then getGroupLabelBackgroundColor() returns the color string that will be used.
    
    Returns:
    
    See CSSColor
    
    See Also:
    
    Appearance overview and related methods
  - setGroupLabelStyleName
```
public void setGroupLabelStyleName(java.lang.String groupLabelStyleName)
                            throws java.lang.IllegalStateException
```
    Sets the style for the grouping label. Only necessary when isGroup is set to true.
    Note that groupLabelBackgroundColor overrides any background-color of this style.
    
    Parameters:
    
    groupLabelStyleName - See CSSStyleName . Default value is "groupLabel"
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Appearance overview and related methods
  - getGroupLabelStyleName
```
public java.lang.String getGroupLabelStyleName()
```
    Sets the style for the grouping label. Only necessary when isGroup is set to true.
    Note that groupLabelBackgroundColor overrides any background-color of this style.
    
    Returns:
    
    See CSSStyleName
    
    See Also:
    
    Appearance overview and related methods
  - setGroupTitle
```
public void setGroupTitle(java.lang.String groupTitle)
```
    The title/label for the grouping. Only applicable when isGroup is set to true.
    
    If this method is called after the component has been drawn/initialized: Setter for groupTitle.
    
    Parameters:
    
    groupTitle - The new title for the grouping. See HTMLString . Default value is null
    
    See Also:
    
    Appearance overview and related methods
  - getGroupTitle
```
public java.lang.String getGroupTitle()
```
    The title/label for the grouping. Only applicable when isGroup is set to true.
    
    Returns:
    
    See HTMLString
    
    See Also:
    
    Appearance overview and related methods
  - setHeight
```
public void setHeight(java.lang.Integer height)
```
    Size for this component's vertical dimension.
    Can be a number of pixels, or a percentage like "50%". See documentation for width for details on how percentage values are resolved actual size.
    Note that if overflow is set to "visible", this size is a minimum, and the component may overflow to show all content and/or children.
    If trying to establish a default height for a custom component, set defaultHeight instead.
    
    If this method is called after the component has been drawn/initialized: Resizes the widget vertically to the specified height (moves the bottom side of the widget). The height parameter can be expressed as a percentage of viewport size or as the number of pixels.
    NOTE: if you're setting multiple coordinates, use resizeTo() or setRect() instead
    
    Parameters:
    
    height - new height. Default value is null
    
    See Also:
    
    Sizing overview and related methods
  - getHeight
```
public java.lang.Integer getHeight()
```
    Size for this component's vertical dimension.
    Can be a number of pixels, or a percentage like "50%". See documentation for width for details on how percentage values are resolved actual size.
    Note that if overflow is set to "visible", this size is a minimum, and the component may overflow to show all content and/or children.
    If trying to establish a default height for a custom component, set defaultHeight instead.
    
    Returns:
    
    Return the height of this object, in pixels.
    
    See Also:
    
    Sizing overview and related methods
  - setHeight
```
public void setHeight(java.lang.String height)
```
    Size for this component's vertical dimension.
    Can be a number of pixels, or a percentage like "50%". See documentation for width for details on how percentage values are resolved actual size.
    Note that if overflow is set to "visible", this size is a minimum, and the component may overflow to show all content and/or children.
    If trying to establish a default height for a custom component, set defaultHeight instead.
    
    If this method is called after the component has been drawn/initialized: Resizes the widget vertically to the specified height (moves the bottom side of the widget). The height parameter can be expressed as a percentage of viewport size or as the number of pixels.
    NOTE: if you're setting multiple coordinates, use resizeTo() or setRect() instead
    
    Overrides:
    
    setHeight in class com.google.gwt.user.client.ui.UIObject
    
    Parameters:
    
    height - new height. Default value is null
    
    See Also:
    
    Sizing overview and related methods
  - setHideUsingDisplayNone
```
public void setHideUsingDisplayNone(boolean hideUsingDisplayNone)
                             throws java.lang.IllegalStateException
```
    When this widget is hidden (see visibility and hide()), should display:none be applied to the outer element?
    This setting is not supported for general use, but in certain cases, it has been shown that display:none is a work-around for browser bugs involving burn-through of iframes or plugins, where the content of the iframe or plugin may still be visible despite the containing widget being hidden.
    Note : This is an advanced setting
    
    Parameters:
    
    hideUsingDisplayNone - Default value is false
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Appearance overview and related methods
  - getHideUsingDisplayNone
```
public boolean getHideUsingDisplayNone()
```
    When this widget is hidden (see visibility and hide()), should display:none be applied to the outer element?
    This setting is not supported for general use, but in certain cases, it has been shown that display:none is a work-around for browser bugs involving burn-through of iframes or plugins, where the content of the iframe or plugin may still be visible despite the containing widget being hidden.
    
    Returns:
    
    boolean
    
    See Also:
    
    Appearance overview and related methods
  - setHoverAlign
```
public void setHoverAlign(Alignment hoverAlign)
```
    If this.showHover is true, this property can be used to customize the alignment of content in the hover canvas.
    
    Parameters:
    
    hoverAlign - Default value is null
    
    See Also:
    
    setShowHover(java.lang.Boolean)
  - getHoverAlign
```
public Alignment getHoverAlign()
```
    If this.showHover is true, this property can be used to customize the alignment of content in the hover canvas.
    
    Returns:
    
    Alignment
    
    See Also:
    
    getShowHover()
  - setHoverAutoDestroy
```
public void setHoverAutoDestroy(java.lang.Boolean hoverAutoDestroy)
```
    If this.showHover is true and getHoverComponent() is implemented, should the hoverCanvas returned from it be automatically destroyed when it is hidden?
    The default of null indicates that the component will be automatically destroyed. Set to false to prevent this.
    
    Parameters:
    
    hoverAutoDestroy - Default value is null
    
    See Also:
    
    setShowHover(java.lang.Boolean)
  - getHoverAutoDestroy
```
public java.lang.Boolean getHoverAutoDestroy()
```
    If this.showHover is true and getHoverComponent() is implemented, should the hoverCanvas returned from it be automatically destroyed when it is hidden?
    The default of null indicates that the component will be automatically destroyed. Set to false to prevent this.
    
    Returns:
    
    Boolean
    
    See Also:
    
    getShowHover()
  - setHoverDelay
```
public void setHoverDelay(int hoverDelay)
```
    If this.canHover is true, how long should the mouse be kept over this widget before the hover event is fired
    
    Parameters:
    
    hoverDelay - Default value is 300
    
    See Also:
    
    setCanHover(java.lang.Boolean), HoverEvent
  - getHoverDelay
```
public int getHoverDelay()
```
    If this.canHover is true, how long should the mouse be kept over this widget before the hover event is fired
    
    Returns:
    
    int
    
    See Also:
    
    getCanHover(), HoverEvent
  - setHoverHeight
```
public void setHoverHeight(java.lang.Integer hoverHeight)
```
    If this.showHover is true, this property can be used to customize the height of the hover canvas shown.
    
    Parameters:
    
    hoverHeight - Default value is null
    
    See Also:
    
    setShowHover(java.lang.Boolean)
  - getHoverHeight
```
public java.lang.Integer getHoverHeight()
```
    If this.showHover is true, this property can be used to customize the height of the hover canvas shown.
    
    Returns:
    
    Integer
    
    See Also:
    
    getShowHover()
  - setHoverMoveWithMouse
```
public void setHoverMoveWithMouse(java.lang.Boolean hoverMoveWithMouse)
```
    If this.showHover is true, should this widget's hover canvas be moved with the mouse while visible?
    
    Parameters:
    
    hoverMoveWithMouse - Default value is null
    
    See Also:
    
    setShowHover(java.lang.Boolean)
  - getHoverMoveWithMouse
```
public java.lang.Boolean getHoverMoveWithMouse()
```
    If this.showHover is true, should this widget's hover canvas be moved with the mouse while visible?
    
    Returns:
    
    Boolean
    
    See Also:
    
    getShowHover()
  - setHoverOpacity
```
public void setHoverOpacity(java.lang.Integer hoverOpacity)
```
    If this.showHover is true, should the hover canvas be shown with opacity other than 100?
    
    Parameters:
    
    hoverOpacity - Default value is null
    
    See Also:
    
    setShowHover(java.lang.Boolean), Hovers / Tooltips Example
  - getHoverOpacity
```
public java.lang.Integer getHoverOpacity()
```
    If this.showHover is true, should the hover canvas be shown with opacity other than 100?
    
    Returns:
    
    Integer
    
    See Also:
    
    getShowHover(), Hovers / Tooltips Example
  - setHoverStyle
```
public void setHoverStyle(java.lang.String hoverStyle)
```
    If this.showHover is true, this property can be used to specify the css style to apply to the hover canvas.
    
    Parameters:
    
    hoverStyle - See CSSStyleName . Default value is null
    
    See Also:
    
    setShowHover(java.lang.Boolean), Hovers / Tooltips Example
  - getHoverStyle
```
public java.lang.String getHoverStyle()
```
    If this.showHover is true, this property can be used to specify the css style to apply to the hover canvas.
    
    Returns:
    
    See CSSStyleName
    
    See Also:
    
    getShowHover(), Hovers / Tooltips Example
  - setHoverVAlign
```
public void setHoverVAlign(VerticalAlignment hoverVAlign)
```
    If this.showHover is true, this property can be used to customize the vertical alignment of content in the hover canvas.
    
    Parameters:
    
    hoverVAlign - Default value is null
    
    See Also:
    
    setShowHover(java.lang.Boolean)
  - getHoverVAlign
```
public VerticalAlignment getHoverVAlign()
```
    If this.showHover is true, this property can be used to customize the vertical alignment of content in the hover canvas.
    
    Returns:
    
    VerticalAlignment
    
    See Also:
    
    getShowHover()
  - setHoverWidth
```
public void setHoverWidth(java.lang.Integer hoverWidth)
```
    If this.showHover is true, this property can be used to customize the width of the hover canvas shown.
    
    Parameters:
    
    hoverWidth - Default value is null
    
    See Also:
    
    setShowHover(java.lang.Boolean), Hovers / Tooltips Example
  - getHoverWidth
```
public java.lang.Integer getHoverWidth()
```
    If this.showHover is true, this property can be used to customize the width of the hover canvas shown.
    
    Returns:
    
    Integer
    
    See Also:
    
    getShowHover(), Hovers / Tooltips Example
  - setHoverWrap
```
public void setHoverWrap(java.lang.Boolean hoverWrap)
```
    If this.showHover is true, this property can be used to customize the whether content in the hover canvas is displayed in a single line, or wraps.
    
    Parameters:
    
    hoverWrap - Default value is null
    
    See Also:
    
    setShowHover(java.lang.Boolean)
  - getHoverWrap
```
public java.lang.Boolean getHoverWrap()
```
    If this.showHover is true, this property can be used to customize the whether content in the hover canvas is displayed in a single line, or wraps.
    
    Returns:
    
    Boolean
    
    See Also:
    
    getShowHover()
  - setHtmlElement
```
public void setHtmlElement(com.google.gwt.user.client.Element htmlElement)
```
    If specified as a pointer to an HTML element present in the DOM, this canvas will be rendered inside that element on draw().
    NOTES:
    This feature is intended for temporary integration with legacy page architectures only; the native browser's reaction to DOM insertion is unspecified and unsupported. For consistent cross-browser layout and positioning semantics, use Canvas parents (especially Layouts) and use absolute positioning at top level.
    Persistence of htmlElement: If htmlPosition is set to "replace" the htmlElement will be removed from the DOM when the canvas is drawn - therefore the htmlElement attribute will be cleared at this time. Otherwise if a Canvas is clear()d and then draw()n again it will be rendered inside the same htmlElement.
    If a Canvas is added as a child to Canvas parent, its htmlElement will be dropped.
    position should typically be set to "relative" if the widget is to be rendered inline within a standard page.
    
    If this method is called after the component has been drawn/initialized: Setter for the htmlElement.
    Note : This is an advanced setting
    
    Overrides:
    
    setHtmlElement in class BaseWidget
    
    Parameters:
    
    htmlElement - New htmlElement for this canvas, or Null to clear the existing htmlElement. Default value is null
    
    See Also:
    
    Positioning overview and related methods
  - getHtmlElement
```
public com.google.gwt.user.client.Element getHtmlElement()
```
    If specified as a pointer to an HTML element present in the DOM, this canvas will be rendered inside that element on draw().
    NOTES:
    This feature is intended for temporary integration with legacy page architectures only; the native browser's reaction to DOM insertion is unspecified and unsupported. For consistent cross-browser layout and positioning semantics, use Canvas parents (especially Layouts) and use absolute positioning at top level.
    Persistence of htmlElement: If htmlPosition is set to "replace" the htmlElement will be removed from the DOM when the canvas is drawn - therefore the htmlElement attribute will be cleared at this time. Otherwise if a Canvas is clear()d and then draw()n again it will be rendered inside the same htmlElement.
    If a Canvas is added as a child to Canvas parent, its htmlElement will be dropped.
    position should typically be set to "relative" if the widget is to be rendered inline within a standard page.
    
    Returns:
    
    Element
    
    See Also:
    
    Positioning overview and related methods
  - setHtmlPosition
```
public void setHtmlPosition(DrawPosition htmlPosition)
```
    If htmlElement is specified, this attribute specifies the position where the canvas should be inserted relative to the htmlElement in the DOM.
    
    If this method is called after the component has been drawn/initialized: Setter for the htmlPosition.
    Note : This is an advanced setting
    
    Parameters:
    
    htmlPosition - New htmlPosition for this canvas. Default value is "afterBegin"
    
    See Also:
    
    Positioning overview and related methods
  - getHtmlPosition
```
public DrawPosition getHtmlPosition()
```
    If htmlElement is specified, this attribute specifies the position where the canvas should be inserted relative to the htmlElement in the DOM.
    
    Returns:
    
    DrawPosition
    
    See Also:
    
    Positioning overview and related methods
  - setIsGroup
```
public void setIsGroup(boolean isGroup)
                throws java.lang.IllegalStateException
```
    Should a grouping frame be shown around this canvas.
    
    Parameters:
    
    isGroup - Default value is false
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    setGroupBorderCSS(java.lang.String), setGroupLabelStyleName(java.lang.String), setGroupLabelBackgroundColor(java.lang.String)
  - getIsGroup
```
public boolean getIsGroup()
```
    Should a grouping frame be shown around this canvas.
    
    Returns:
    
    boolean
    
    See Also:
    
    getGroupBorderCSS(), getGroupLabelStyleName(), getGroupLabelBackgroundColor()
  - getIsPrinting
```
public java.lang.Boolean getIsPrinting()
                                throws java.lang.IllegalStateException
```
    This boolean flag will be set to true by framework logic while generating print HTML for this widget as a result to a call to showPrintPreview() (or just getPrintHTML()). Note that this flag is set recursively as parent widgets generate print HTML for their children.
    This is a read-only property and should not be modified by application code.
    Note : This method should be called only after the widget has been rendered.
    
    Returns:
    
    Boolean
    
    Throws:
    
    java.lang.IllegalStateException - if this widget has not yet been rendered.
  - setIsSnapAlignCandidate
```
public void setIsSnapAlignCandidate(java.lang.Boolean isSnapAlignCandidate)
```
    Flag to disable snapping to alignment against this Canvas when other Canvases dragged into the same parent when childrenSnapAlign is enabled on this Canvas' parent.
    
    Parameters:
    
    isSnapAlignCandidate - Default value is null
  - getIsSnapAlignCandidate
```
public java.lang.Boolean getIsSnapAlignCandidate()
```
    Flag to disable snapping to alignment against this Canvas when other Canvases dragged into the same parent when childrenSnapAlign is enabled on this Canvas' parent.
    
    Returns:
    
    Boolean
  - setKeepInParentRect
```
public void setKeepInParentRect(java.lang.Boolean keepInParentRect)
```
    Constrains drag-resizing and drag-repositioning of this canvas to either the rect of its parent (if set to true) or an arbitrary rect based its parent (if set to a [Left,Top,Width,Height] rect array). In the latter mode you may use negative offsets for left/top and a width/height greater than the visible or scroll width of the parent to allow positioning beyond the confines of the parent.
    If this canvas has no parent, constrains dragging to within the browser window.
    Affects target and outline dragAppearance, not tracker.
    Note: keepInParentRect affects only user drag interactions, not programmatic moves.
    Example use cases:
    keepInParentRect: true - confine to parent
    keepInParentRect: [0, 0, 500, 500] - confine to top left 500x500 region within parent
    keepInParentRect: [0, 0, 10000, 10000] - in combination with overflow: "auto", confine to parent, but allow moving off the right and bottom of the parent to force scrolling (and hence enlarge the scrollWidth of the parent).
    Note : This is an advanced setting
    
    Parameters:
    
    keepInParentRect - Default value is null
    
    See Also:
    
    Dragdrop overview and related methods, Drag create Example
  - getKeepInParentRect
```
public java.lang.Boolean getKeepInParentRect()
```
    Constrains drag-resizing and drag-repositioning of this canvas to either the rect of its parent (if set to true) or an arbitrary rect based its parent (if set to a [Left,Top,Width,Height] rect array). In the latter mode you may use negative offsets for left/top and a width/height greater than the visible or scroll width of the parent to allow positioning beyond the confines of the parent.
    If this canvas has no parent, constrains dragging to within the browser window.
    Affects target and outline dragAppearance, not tracker.
    Note: keepInParentRect affects only user drag interactions, not programmatic moves.
    Example use cases:
    keepInParentRect: true - confine to parent
    keepInParentRect: [0, 0, 500, 500] - confine to top left 500x500 region within parent
    keepInParentRect: [0, 0, 10000, 10000] - in combination with overflow: "auto", confine to parent, but allow moving off the right and bottom of the parent to force scrolling (and hence enlarge the scrollWidth of the parent).
    
    Returns:
    
    Boolean
    
    See Also:
    
    Dragdrop overview and related methods, Drag create Example
  - setKeepInParentRect
```
public void setKeepInParentRect(java.lang.Integer... keepInParentRect)
```
    Constrains drag-resizing and drag-repositioning of this canvas to either the rect of its parent (if set to true) or an arbitrary rect based its parent (if set to a [Left,Top,Width,Height] rect array). In the latter mode you may use negative offsets for left/top and a width/height greater than the visible or scroll width of the parent to allow positioning beyond the confines of the parent.
    If this canvas has no parent, constrains dragging to within the browser window.
    Affects target and outline dragAppearance, not tracker.
    Note: keepInParentRect affects only user drag interactions, not programmatic moves.
    Example use cases:
    keepInParentRect: true - confine to parent
    keepInParentRect: [0, 0, 500, 500] - confine to top left 500x500 region within parent
    keepInParentRect: [0, 0, 10000, 10000] - in combination with overflow: "auto", confine to parent, but allow moving off the right and bottom of the parent to force scrolling (and hence enlarge the scrollWidth of the parent).
    Note : This is an advanced setting
    
    Parameters:
    
    keepInParentRect - Default value is null
    
    See Also:
    
    Dragdrop overview and related methods, Drag create Example
  - setLayoutAlign
```
public void setLayoutAlign(Alignment layoutAlign)
```
    When this Canvas is included as a member in a Layout, layoutAlign controls alignment on the breadth axis of the layout. Default is "left" for a VLayout, "top" for an HLayout.
    
    Parameters:
    
    layoutAlign - Default value is null
    
    See Also:
    
    LayoutMember overview and related methods
  - getLayoutAlign
```
public Alignment getLayoutAlign()
```
    When this Canvas is included as a member in a Layout, layoutAlign controls alignment on the breadth axis of the layout. Default is "left" for a VLayout, "top" for an HLayout.
    
    Returns:
    
    Alignment
    
    See Also:
    
    LayoutMember overview and related methods
  - setLayoutAlign
```
public void setLayoutAlign(VerticalAlignment layoutAlign)
```
    When this Canvas is included as a member in a Layout, layoutAlign controls alignment on the breadth axis of the layout. Default is "left" for a VLayout, "top" for an HLayout.
    
    Parameters:
    
    layoutAlign - Default value is null
    
    See Also:
    
    LayoutMember overview and related methods
  - setLeavePageSpace
```
public void setLeavePageSpace(java.lang.Integer leavePageSpace)
```
    If set, overrides the global defaultPageSpace.
    
    If this method is called after the component has been drawn/initialized: Setter for leavePageSpace.
    Note : This is an advanced setting
    
    Parameters:
    
    leavePageSpace - new value for leavePageSpace.. Default value is null
    
    See Also:
    
    Positioning overview and related methods
  - getLeavePageSpace
```
public java.lang.Integer getLeavePageSpace()
```
    If set, overrides the global defaultPageSpace.
    
    Returns:
    
    Integer
    
    See Also:
    
    Positioning overview and related methods
  - setLeft
```
public void setLeft(int left)
```
    Number of pixels the left side of the widget is offset to the right from its default drawing context (either its parent's topleft corner, or the document flow, depending on the value of the position property).
    Can also be set as a percentage, specified as a String ending in '%', eg, "50%". In this case the top coordinate is considered as a percentage of the specified width of the parent.
    
    If this method is called after the component has been drawn/initialized: Set the left coordinate of this object, relative to its enclosing context, in pixels. NOTE: if you're setting multiple coordinates, use setRect(), moveTo() or resizeTo() instead
    
    Parameters:
    
    left - new left coordinate. Default value is 0
    
    See Also:
    
    Positioning overview and related methods
  - getLeft
```
public int getLeft()
```
    Number of pixels the left side of the widget is offset to the right from its default drawing context (either its parent's topleft corner, or the document flow, depending on the value of the position property).
    Can also be set as a percentage, specified as a String ending in '%', eg, "50%". In this case the top coordinate is considered as a percentage of the specified width of the parent.
    
    Returns:
    
    Return the left coordinate of this object, relative to its enclosing context, in pixels.
    
    See Also:
    
    Positioning overview and related methods
  - setLeft
```
public void setLeft(java.lang.String left)
```
    Number of pixels the left side of the widget is offset to the right from its default drawing context (either its parent's topleft corner, or the document flow, depending on the value of the position property).
    Can also be set as a percentage, specified as a String ending in '%', eg, "50%". In this case the top coordinate is considered as a percentage of the specified width of the parent.
    
    If this method is called after the component has been drawn/initialized: Set the left coordinate of this object, relative to its enclosing context, in pixels. NOTE: if you're setting multiple coordinates, use setRect(), moveTo() or resizeTo() instead
    
    Parameters:
    
    left - new left coordinate. Default value is 0
    
    See Also:
    
    Positioning overview and related methods
  - setLocateChildrenBy
```
public void setLocateChildrenBy(LocatorStrategy locateChildrenBy)
```
    Strategy to use when locating children in this canvas from an autoTest locator string.
    Note : This is an advanced setting
    
    Parameters:
    
    locateChildrenBy - Default value is null
  - getLocateChildrenBy
```
public LocatorStrategy getLocateChildrenBy()
```
    Strategy to use when locating children in this canvas from an autoTest locator string.
    
    Returns:
    
    LocatorStrategy
  - setLocateChildrenType
```
public void setLocateChildrenType(LocatorTypeStrategy locateChildrenType)
```
    LocatorTypeStrategy to use when finding children within this canvas.
    Note : This is an advanced setting
    
    Parameters:
    
    locateChildrenType - Default value is null
  - getLocateChildrenType
```
public LocatorTypeStrategy getLocateChildrenType()
```
    LocatorTypeStrategy to use when finding children within this canvas.
    
    Returns:
    
    LocatorTypeStrategy
  - setLocatePeersBy
```
public void setLocatePeersBy(LocatorStrategy locatePeersBy)
```
    Strategy to use when locating peers of this canvas from an autoTest locator string.
    Note : This is an advanced setting
    
    Parameters:
    
    locatePeersBy - Default value is null
  - getLocatePeersBy
```
public LocatorStrategy getLocatePeersBy()
```
    Strategy to use when locating peers of this canvas from an autoTest locator string.
    
    Returns:
    
    LocatorStrategy
  - setLocatePeersType
```
public void setLocatePeersType(LocatorTypeStrategy locatePeersType)
```
    LocatorTypeStrategy to use when finding peers of this canvas.
    Note : This is an advanced setting
    
    Parameters:
    
    locatePeersType - Default value is null
  - getLocatePeersType
```
public LocatorTypeStrategy getLocatePeersType()
```
    LocatorTypeStrategy to use when finding peers of this canvas.
    
    Returns:
    
    LocatorTypeStrategy
  - setMargin
```
public void setMargin(java.lang.Integer margin)
```
    Set the CSS Margin, in pixels, for this component. Margin provides blank space outside of the border.
    This property sets the same thickness of margin on every side. Differing per-side margins can be set in a CSS style and applied via styleName.
    Note that the specified size of the widget will be the size including the margin thickness on each side.
    
    If this method is called after the component has been drawn/initialized: Set the CSS Margin, in pixels, for this component. Margin provides blank space outside of the border.
    This property sets the same thickness of margin on every side. Differing per-side margins can be set in a CSS style and applied via styleName.
    Note that the specified size of the widget will be the size including the margin thickness on each side.
    
    Parameters:
    
    margin - new margin in pixels. Default value is null
    
    See Also:
    
    Appearance overview and related methods
  - getMargin
```
public java.lang.Integer getMargin()
```
    Set the CSS Margin, in pixels, for this component. Margin provides blank space outside of the border.
    This property sets the same thickness of margin on every side. Differing per-side margins can be set in a CSS style and applied via styleName.
    Note that the specified size of the widget will be the size including the margin thickness on each side.
    
    Returns:
    
    Integer
    
    See Also:
    
    Appearance overview and related methods
  - getMasterElement
```
public Canvas getMasterElement()
                        throws java.lang.IllegalStateException
```
    Deprecated. In favor or getMasterCanvas() as of Smart GWT release 9.1
    
    This Canvas's "master" (the Canvas to which it was added as a peer), if any.
    Note : This method should be called only after the widget has been rendered.
    
    Returns:
    
    Canvas
    
    Throws:
    
    java.lang.IllegalStateException - if this widget has not yet been rendered.
    
    See Also:
    
    Containment overview and related methods
  - setMatchElement
```
public void setMatchElement(java.lang.Boolean matchElement)
```
    If htmlElement is specified, should this canvas initially be drawn at the same dimensions as the htmlElement?
    Note: setting this property will not force the canvas to resize if the element subsequently resizes (for example due to page reflow).
    Note : This is an advanced setting
    
    Parameters:
    
    matchElement - Default value is null
  - getMatchElement
```
public java.lang.Boolean getMatchElement()
```
    If htmlElement is specified, should this canvas initially be drawn at the same dimensions as the htmlElement?
    Note: setting this property will not force the canvas to resize if the element subsequently resizes (for example due to page reflow).
    
    Returns:
    
    Boolean
  - setMaxHeight
```
public void setMaxHeight(int maxHeight)
```
    Maximum height that this Canvas can be resized to.
    Note : This is an advanced setting
    
    Parameters:
    
    maxHeight - Default value is 10000
    
    See Also:
    
    Sizing overview and related methods
  - getMaxHeight
```
public int getMaxHeight()
```
    Maximum height that this Canvas can be resized to.
    
    Returns:
    
    int
    
    See Also:
    
    Sizing overview and related methods
  - setMaxWidth
```
public void setMaxWidth(int maxWidth)
```
    Maximum width that this Canvas can be resized to.
    Note : This is an advanced setting
    
    Parameters:
    
    maxWidth - Default value is 10000
    
    See Also:
    
    Sizing overview and related methods
  - getMaxWidth
```
public int getMaxWidth()
```
    Maximum width that this Canvas can be resized to.
    
    Returns:
    
    int
    
    See Also:
    
    Sizing overview and related methods
  - setMenuConstructor
```
public void setMenuConstructor(java.lang.String menuConstructor)
                        throws java.lang.IllegalStateException
```
    Default class used to construct menus created by this component, including context menus.
    
    Parameters:
    
    menuConstructor - See SCClassName . Default value is "Menu"
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    ShowContextMenuEvent, Cues overview and related methods
  - getMenuConstructor
```
public java.lang.String getMenuConstructor()
```
    Default class used to construct menus created by this component, including context menus.
    
    Returns:
    
    See SCClassName
    
    See Also:
    
    ShowContextMenuEvent, Cues overview and related methods
  - setMinHeight
```
public void setMinHeight(int minHeight)
```
    Minimum height that this Canvas can be resized to by a user.
    Note that a Canvas with overflow:"visible" has an implicit minimum size based on it's contents.
    Note that minHeight affects only user-initiated drag resizes. To set the minimum height of a Canvas embedded in a Layout, you can set Layout.minMemberSize to affect the minimum height of all members of the Layout.
    Note : This is an advanced setting
    
    Parameters:
    
    minHeight - Default value is 10
    
    See Also:
    
    Sizing overview and related methods
  - getMinHeight
```
public int getMinHeight()
```
    Minimum height that this Canvas can be resized to by a user.
    Note that a Canvas with overflow:"visible" has an implicit minimum size based on it's contents.
    Note that minHeight affects only user-initiated drag resizes. To set the minimum height of a Canvas embedded in a Layout, you can set Layout.minMemberSize to affect the minimum height of all members of the Layout.
    
    Returns:
    
    int
    
    See Also:
    
    Sizing overview and related methods
  - setMinNonEdgeSize
```
public void setMinNonEdgeSize(int minNonEdgeSize)
```
    If the widget has drag resize configured on one or more of it's edges, and the edgeMarginSize is large enough that the remaining space is less than minNonEdgeSize, the edgeMarginSize will be reduced such that the non-edge part of the widget is at least 1/3 of the total space (with two draggable edges) or half of it (with one draggable edge).
    Note : This is an advanced setting
    
    Parameters:
    
    minNonEdgeSize - Default value is 0
    
    See Also:
    
    Dragdrop overview and related methods, Drag resize Example
  - getMinNonEdgeSize
```
public int getMinNonEdgeSize()
```
    If the widget has drag resize configured on one or more of it's edges, and the edgeMarginSize is large enough that the remaining space is less than minNonEdgeSize, the edgeMarginSize will be reduced such that the non-edge part of the widget is at least 1/3 of the total space (with two draggable edges) or half of it (with one draggable edge).
    
    Returns:
    
    int
    
    See Also:
    
    Dragdrop overview and related methods, Drag resize Example
  - setMinWidth
```
public void setMinWidth(int minWidth)
```
    Minimum width that this Canvas can be resized to.
    Note that a Canvas with overflow:"visible" has an implicit minimize size based on it's contents.
    Note that minWidth affects only user-initiated drag resizes. To set the minimum width of a Canvas embedded in a Layout, you can set Layout.minMemberSize to affect the minimum width of all members of the Layout.
    Note : This is an advanced setting
    
    Parameters:
    
    minWidth - Default value is 10
    
    See Also:
    
    Sizing overview and related methods
  - getMinWidth
```
public int getMinWidth()
```
    Minimum width that this Canvas can be resized to.
    Note that a Canvas with overflow:"visible" has an implicit minimize size based on it's contents.
    Note that minWidth affects only user-initiated drag resizes. To set the minimum width of a Canvas embedded in a Layout, you can set Layout.minMemberSize to affect the minimum width of all members of the Layout.
    
    Returns:
    
    int
    
    See Also:
    
    Sizing overview and related methods
  - setMomentumScrollMinSpeed
```
public void setMomentumScrollMinSpeed(double momentumScrollMinSpeed)
```
    The minimum speed in pixels per second that must be reached for momentum scrolling to kick in. This setting only applies to touch-enabled devices.
    Note : This is an advanced setting
    
    Parameters:
    
    momentumScrollMinSpeed - Default value is 200
  - getMomentumScrollMinSpeed
```
public double getMomentumScrollMinSpeed()
```
    The minimum speed in pixels per second that must be reached for momentum scrolling to kick in. This setting only applies to touch-enabled devices.
    
    Returns:
    
    double
  - setMouseStillDownDelay
```
public void setMouseStillDownDelay(int mouseStillDownDelay)
```
    Amount of time (in milliseconds) between repeated 'mouseStillDown' events for this canvas. See Canvas.mouseStillDown() for details.
    Note : This is an advanced setting
    
    Parameters:
    
    mouseStillDownDelay - Default value is 100
  - getMouseStillDownDelay
```
public int getMouseStillDownDelay()
```
    Amount of time (in milliseconds) between repeated 'mouseStillDown' events for this canvas. See Canvas.mouseStillDown() for details.
    
    Returns:
    
    int
  - setMouseStillDownInitialDelay
```
public void setMouseStillDownInitialDelay(int mouseStillDownInitialDelay)
```
    Amount of time (in milliseconds) before mouseStillDown events start to be fired repeatedly for this canvas. See Canvas.mouseStillDown() for details.
    Note : This is an advanced setting
    
    Parameters:
    
    mouseStillDownInitialDelay - Default value is 400
  - getMouseStillDownInitialDelay
```
public int getMouseStillDownInitialDelay()
```
    Amount of time (in milliseconds) before mouseStillDown events start to be fired repeatedly for this canvas. See Canvas.mouseStillDown() for details.
    
    Returns:
    
    int
  - setNoDoubleClicks
```
public void setNoDoubleClicks(java.lang.Boolean noDoubleClicks)
```
    If true, this canvas will receive all mouse-clicks as single click events rather than as doubleClick events.
    Note : This is an advanced setting
    
    Parameters:
    
    noDoubleClicks - Default value is null
  - getNoDoubleClicks
```
public java.lang.Boolean getNoDoubleClicks()
```
    If true, this canvas will receive all mouse-clicks as single click events rather than as doubleClick events.
    
    Returns:
    
    Boolean
  - setNoDropCursor
```
public void setNoDropCursor(Cursor noDropCursor)
```
    Specifies the cursor image to display when the user drags a droppable canvas over this if it is not a valid drop target for the event and showNoDropIndicator is true.
    Note : This is an advanced setting
    
    Parameters:
    
    noDropCursor - Default value is Canvas.NOT_ALLOWED
    
    See Also:
    
    Cues overview and related methods
  - getNoDropCursor
```
public Cursor getNoDropCursor()
```
    Specifies the cursor image to display when the user drags a droppable canvas over this if it is not a valid drop target for the event and showNoDropIndicator is true.
    
    Returns:
    
    Cursor
    
    See Also:
    
    Cues overview and related methods
  - setOpacity
```
public void setOpacity(java.lang.Integer opacity)
```
    Renders the widget to be partly transparent. A widget's opacity property may be set to any number between 0 (transparent) to 100 (opaque). Null means don't specify opacity directly, 100 is fully opaque. Note that heavy use of opacity may have a performance impact on some older browsers.
    In older versions of Internet Explorer (Pre IE9 / HTML5), opacity is achieved through proprietary filters. If filters have been disabled within this application developers must set useOpacityFilter to true for specific components on which opacity support is required.
    Also note that opacity is incompatible with backMasks.
    
    If this method is called after the component has been drawn/initialized: Sets the opacity for the widget to the newOpacity value. This newOpacity value must be within the range of 0 (transparent) to 100 (opaque). Null means don't specify opacity directly. Note that heavy use of opacity may have a performance impact on some older browsers.
    In older versions of Internet Explorer (Pre IE9 / HTML5), opacity is achieved through proprietary filters. If filters have been disabled within this application developers must set useOpacityFilter to true for specific components on which opacity support is required.
    Also note that opacity is incompatible with backMasks.
    Note : This is an advanced setting
    
    Parameters:
    
    opacity - new opacity level. Default value is null
    
    See Also:
    
    Cues overview and related methods
  - getOpacity
```
public java.lang.Integer getOpacity()
```
    Renders the widget to be partly transparent. A widget's opacity property may be set to any number between 0 (transparent) to 100 (opaque). Null means don't specify opacity directly, 100 is fully opaque. Note that heavy use of opacity may have a performance impact on some older browsers.
    In older versions of Internet Explorer (Pre IE9 / HTML5), opacity is achieved through proprietary filters. If filters have been disabled within this application developers must set useOpacityFilter to true for specific components on which opacity support is required.
    Also note that opacity is incompatible with backMasks.
    
    Returns:
    
    Integer
    
    See Also:
    
    Cues overview and related methods
  - setOverflow
```
public void setOverflow(Overflow overflow)
```
    Controls what happens when the drawn size of the content of a Canvas is either greater or smaller than the specified size of the Canvas. Similar to the CSS property overflow, but consistent across browsers. See Overflow type for details.
    
    If this method is called after the component has been drawn/initialized: Update the overflow of a Canvas after it has been created.
    
    Parameters:
    
    overflow - New overflow value.. Default value is Canvas.VISIBLE
    
    See Also:
    
    Sizing overview and related methods
  - getOverflow
```
public Overflow getOverflow()
```
    Controls what happens when the drawn size of the content of a Canvas is either greater or smaller than the specified size of the Canvas. Similar to the CSS property overflow, but consistent across browsers. See Overflow type for details.
    
    Returns:
    
    Overflow
    
    See Also:
    
    Sizing overview and related methods
  - setPadding
```
public void setPadding(java.lang.Integer padding)
```
    Set the CSS padding of this component, in pixels. Padding provides space between the border and the component's contents.
    This property sets the same thickness of padding on every side. Differing per-side padding can be set in a CSS style and applied via styleName.
    Note that CSS padding does not affect the placement of children. To provide a blank area around children, either use CSS margins or use a Layout as the parent instead, and use properties such as Layout.layoutMargin to create blank space.
    
    If this method is called after the component has been drawn/initialized: Set the CSS padding of this component, in pixels. Padding provides space between the border and the component's contents.
    This property sets the same thickness of padding on every side. Differing per-side padding can be set in a CSS style and applied via styleName.
    
    Parameters:
    
    padding - new padding in pixels. Default value is null
    
    See Also:
    
    Appearance overview and related methods
  - getPadding
```
public java.lang.Integer getPadding()
```
    Set the CSS padding of this component, in pixels. Padding provides space between the border and the component's contents.
    This property sets the same thickness of padding on every side. Differing per-side padding can be set in a CSS style and applied via styleName.
    Note that CSS padding does not affect the placement of children. To provide a blank area around children, either use CSS margins or use a Layout as the parent instead, and use properties such as Layout.layoutMargin to create blank space.
    
    Returns:
    
    Integer
    
    See Also:
    
    Appearance overview and related methods
  - setParentCanvas
```
public void setParentCanvas(Canvas parentCanvas)
                     throws java.lang.IllegalStateException
```
    This Canvas's immediate parent, if any.
    Can be initialized, but any subsequent manipulation should be via addChild() and removeChild() calls on the parent. The parent Canvas should be fetched using getParentCanvas().
    
    Parameters:
    
    parentCanvas - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Containment overview and related methods
  - getParentCanvas
```
public Canvas getParentCanvas()
```
    This Canvas's immediate parent, if any.
    Can be initialized, but any subsequent manipulation should be via addChild() and removeChild() calls on the parent. The parent Canvas should be fetched using getParentCanvas().
    
    Returns:
    
    Returns the parent of this canvas, if any.
    
    See Also:
    
    Containment overview and related methods
  - setParentElement
```
public void setParentElement(Canvas parentElement)
                      throws java.lang.IllegalStateException
```
    Deprecated. As of Smartclient version 9.1, deprecated in favor of parentCanvas and getParentCanvas()
    
    This Canvas's immediate parent, if any.
    Can be initialized, but any subsequent manipulation should be via addChild() and removeChild() calls on the parent.
    Note : This is an advanced setting
    
    Parameters:
    
    parentElement - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Containment overview and related methods
  - getParentElement
```
public Canvas getParentElement()
```
    Deprecated. As of Smartclient version 9.1, deprecated in favor of parentCanvas and getParentCanvas()
    
    This Canvas's immediate parent, if any.
    Can be initialized, but any subsequent manipulation should be via addChild() and removeChild() calls on the parent.
    
    Returns:
    
    Canvas
    
    See Also:
    
    Containment overview and related methods
  - setPeers
```
public void setPeers(Canvas... peers)
              throws java.lang.IllegalStateException
```
    Array of all Canvii that are peers of this Canvas.
    Use addPeer() and removePeer() to add and remove peers after a Canvas has been created/drawn.
    Note : This is an advanced setting
    
    Parameters:
    
    peers - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Containment overview and related methods
  - getPeers
```
public Canvas[] getPeers()
```
    Array of all Canvii that are peers of this Canvas.
    Use addPeer() and removePeer() to add and remove peers after a Canvas has been created/drawn.
    
    Returns:
    
    Canvas...
    
    See Also:
    
    Containment overview and related methods
  - setPercentBox
```
public void setPercentBox(PercentBoxModel percentBox)
                   throws java.lang.IllegalStateException
```
    Governs the model to be used when sizing canvases with percentage width or height, or positioning widgets with a specified snapTo.
    Only affects widgets with a a specified percentSource, or widgets that have snapTo set and are peers of some other canvas.
    Determines whether the coordinates used for sizing (for percentage sized widgets) and positioning (if snapTo is set) should be relative to the visible size or the viewport size of the percentSource or master canvas widget.
    Note : This is an advanced setting
    
    Parameters:
    
    percentBox - Default value is "visible"
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Sizing overview and related methods
  - getPercentBox
```
public PercentBoxModel getPercentBox()
```
    Governs the model to be used when sizing canvases with percentage width or height, or positioning widgets with a specified snapTo.
    Only affects widgets with a a specified percentSource, or widgets that have snapTo set and are peers of some other canvas.
    Determines whether the coordinates used for sizing (for percentage sized widgets) and positioning (if snapTo is set) should be relative to the visible size or the viewport size of the percentSource or master canvas widget.
    
    Returns:
    
    PercentBoxModel
    
    See Also:
    
    Sizing overview and related methods
  - setPercentSource
```
public void setPercentSource(Canvas percentSource)
```
    If this canvas has its size specified as a percentage, this property allows the user to explicitly designate another canvas upon which sizing will be based.
    If unset percentage sizing is based on
    - the master canvas if there is one and snapTo is set,
    - otherwise on the amount of space available in this widget's parent canvas, if this is a child of some other widget
    - otherwise the page size.
    
    If this method is called after the component has been drawn/initialized: Setter method for the percentSource attribute.
    Note : This is an advanced setting
    
    Parameters:
    
    percentSource - eterNew percent source (if omitted existing percentSource will just be cleared).. Default value is null
    
    See Also:
    
    setPercentBox(com.smartgwt.client.types.PercentBoxModel), Sizing overview and related methods
  - getPercentSource
```
public Canvas getPercentSource()
```
    If this canvas has its size specified as a percentage, this property allows the user to explicitly designate another canvas upon which sizing will be based.
    If unset percentage sizing is based on
    - the master canvas if there is one and snapTo is set,
    - otherwise on the amount of space available in this widget's parent canvas, if this is a child of some other widget
    - otherwise the page size.
    
    Returns:
    
    Canvas
    
    See Also:
    
    getPercentBox(), Sizing overview and related methods
  - setPosition
```
public void setPosition(Positioning position)
```
    Absolute or relative, corresponding to the "absolute" (with respect to parent) or "relative" (with respect to document flow) values for the CSS position attribute.
    Setting position:"relative" enables Smart GWT components to be embedded directly into the native HTML flow of a page, causing the component to be rendered within an existing DOM structure. This attribute should only be set to "relative" on a top level component (a component with no getParentCanvas()).
    There are 2 ways to embed relatively positioned canvases in the DOM - by default the component will be written out inline when it gets drawn()n. For example to embed a canvas in an HTML table you could use this code:
```
  <table>
    <tr>
      <td>
        <script>
          isc.Canvas.create({autoDraw:true, backgroundColor:"red", position:"relative"});
        </script>
      <td>
    </tr>
  </table>
  
```
    Alternatively you can make use of the htmlElement attribute.
    Relative positioning is intended as a short-term integration scenario while incrementally upgrading existing applications. Note that relative positioning is not used to manage layout within Smart GWT components - instead the Layout class would typically be used. For best consistency and flexibility across browsers, all Smart GWT layout managers use absolute positioning.
    For canvases with a specified htmlElement, this attribute defaults to "relative". In all other cases the default value will be "absolute".
    Note : This is an advanced setting
    Parameters:
    
    position - Default value is null
    
    See Also:
    
    Positioning overview and related methods
  - getPosition
```
public Positioning getPosition()
```
    Absolute or relative, corresponding to the "absolute" (with respect to parent) or "relative" (with respect to document flow) values for the CSS position attribute.
    Setting position:"relative" enables Smart GWT components to be embedded directly into the native HTML flow of a page, causing the component to be rendered within an existing DOM structure. This attribute should only be set to "relative" on a top level component (a component with no getParentCanvas()).
    There are 2 ways to embed relatively positioned canvases in the DOM - by default the component will be written out inline when it gets drawn()n. For example to embed a canvas in an HTML table you could use this code:
```
  <table>
    <tr>
      <td>
        <script>
          isc.Canvas.create({autoDraw:true, backgroundColor:"red", position:"relative"});
        </script>
      <td>
    </tr>
  </table>
  
```
    Alternatively you can make use of the htmlElement attribute.
    Relative positioning is intended as a short-term integration scenario while incrementally upgrading existing applications. Note that relative positioning is not used to manage layout within Smart GWT components - instead the Layout class would typically be used. For best consistency and flexibility across browsers, all Smart GWT layout managers use absolute positioning.
    For canvases with a specified htmlElement, this attribute defaults to "relative". In all other cases the default value will be "absolute".
    Returns:
    
    Positioning
    
    See Also:
    
    Positioning overview and related methods
  - setPrintChildrenAbsolutelyPositioned
```
public void setPrintChildrenAbsolutelyPositioned(java.lang.Boolean printChildrenAbsolutelyPositioned)
```
    Should this canvas print its children absolutely positioned when generating printable HTML.
    By default explicitly specified absolute positioning and sizing is ignored when generating print HTML. This is done intentionally: there is no way for the framework to predict how explicit sizes will translate to a the printed page and if HTML for printing includes the same absolute positioning and sizing as is displayed within an application it is very common to encounter undesirable effects, such as seeing tables get broken over several pages horizontally when there is enough room to print them on a single page of paper.
    In some cases, however, a developer may wish to have explicit sizing and positioning respected within the print-view. Setting this attribute to true will cause this to occur.
    Note : This is an advanced setting
    
    Parameters:
    
    printChildrenAbsolutelyPositioned - Default value is false
    
    See Also:
    
    Printing overview and related methods
  - getPrintChildrenAbsolutelyPositioned
```
public java.lang.Boolean getPrintChildrenAbsolutelyPositioned()
```
    Should this canvas print its children absolutely positioned when generating printable HTML.
    By default explicitly specified absolute positioning and sizing is ignored when generating print HTML. This is done intentionally: there is no way for the framework to predict how explicit sizes will translate to a the printed page and if HTML for printing includes the same absolute positioning and sizing as is displayed within an application it is very common to encounter undesirable effects, such as seeing tables get broken over several pages horizontally when there is enough room to print them on a single page of paper.
    In some cases, however, a developer may wish to have explicit sizing and positioning respected within the print-view. Setting this attribute to true will cause this to occur.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Printing overview and related methods
  - setPrompt
```
public void setPrompt(java.lang.String prompt)
```
    Prompt displayed in hover canvas if showHover is true.
    
    Parameters:
    
    prompt - See HTMLString . Default value is null
    
    See Also:
    
    Hovers / Tooltips Example
  - getPrompt
```
public java.lang.String getPrompt()
```
    Prompt displayed in hover canvas if showHover is true.
    
    Returns:
    
    See HTMLString
    
    See Also:
    
    Hovers / Tooltips Example
  - setProportionalResizing
```
public void setProportionalResizing(ProportionalResizeMode proportionalResizing)
                             throws java.lang.IllegalStateException
```
    If canDragResize is true, this property specifies the conditions for when proportional resizing is used. The default is ProportionalResizeMode.MODIFIER_OFF , which means that proportional resizing is disabled.
    
    Parameters:
    
    proportionalResizing - Default value is "none"
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    setProportionalResizeModifiers(java.lang.String...), Dragdrop overview and related methods
  - getProportionalResizing
```
public ProportionalResizeMode getProportionalResizing()
```
    If canDragResize is true, this property specifies the conditions for when proportional resizing is used. The default is ProportionalResizeMode.MODIFIER_OFF , which means that proportional resizing is disabled.
    
    Returns:
    
    ProportionalResizeMode
    
    See Also:
    
    getProportionalResizeModifiers(), Dragdrop overview and related methods
  - setRedrawOnResize
```
public void setRedrawOnResize(java.lang.Boolean redrawOnResize)
```
    Should this element be redrawn in response to a resize?
    Should be set to true for components whose inner HTML will not automatically reflow to fit the component's new size.
    Note : This is an advanced setting
    
    Parameters:
    
    redrawOnResize - Default value is true
    
    See Also:
    
    Drawing overview and related methods
  - getRedrawOnResize
```
public java.lang.Boolean getRedrawOnResize()
```
    Should this element be redrawn in response to a resize?
    Should be set to true for components whose inner HTML will not automatically reflow to fit the component's new size.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Drawing overview and related methods
  - setResizeBarTarget
```
public void setResizeBarTarget(java.lang.String resizeBarTarget)
                        throws java.lang.IllegalStateException
```
    When this Canvas is included as a member in a Layout, and showResizeBar is set to true so that a resizeBar is created, resizeBarTarget:"next" can be set to indicate that the resizeBar should resize the next member of the layout rather than this one. For resizeBars that support hiding their target member when clicked on, resizeBarTarget:"next" also means that the next member will be the one hidden.
    This is typically used to create a 3-way split pane, where left and right-hand sections can be resized or hidden to allow a center section to expand.
    NOTE: as with any Layout, to ensure all available space is used, one or more members must maintain a flexible size (eg 75%, or *). In a two pane Layout with a normal resize bar, to fill all space after a user resizes, the member on the right should have flexible size. With resizeBarTarget:"next", the member on the left should have flexible size.
    
    Parameters:
    
    resizeBarTarget - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    setShowResizeBar(java.lang.Boolean), LayoutMember overview and related methods
  - getResizeBarTarget
```
public java.lang.String getResizeBarTarget()
```
    When this Canvas is included as a member in a Layout, and showResizeBar is set to true so that a resizeBar is created, resizeBarTarget:"next" can be set to indicate that the resizeBar should resize the next member of the layout rather than this one. For resizeBars that support hiding their target member when clicked on, resizeBarTarget:"next" also means that the next member will be the one hidden.
    This is typically used to create a 3-way split pane, where left and right-hand sections can be resized or hidden to allow a center section to expand.
    NOTE: as with any Layout, to ensure all available space is used, one or more members must maintain a flexible size (eg 75%, or *). In a two pane Layout with a normal resize bar, to fill all space after a user resizes, the member on the right should have flexible size. With resizeBarTarget:"next", the member on the left should have flexible size.
    
    Returns:
    
    String
    
    See Also:
    
    getShowResizeBar(), LayoutMember overview and related methods
  - setResizeFrom
```
public void setResizeFrom(EdgeName... resizeFrom)
```
    When drag resizing is enabled via canDragResize, restricts resizes to only certain edges or corners.
    The default of null indicates the widget can be resized from any corner or edge (if canDragResize is true).
    To restrict resizing to only certain corners, set resizeFrom to an Array of EdgeNames.
    Note : This is an advanced setting
    
    Parameters:
    
    resizeFrom - Default value is null
    
    See Also:
    
    Dragdrop overview and related methods, Drag resize Example
  - getResizeFrom
```
public EdgeName[] getResizeFrom()
```
    When drag resizing is enabled via canDragResize, restricts resizes to only certain edges or corners.
    The default of null indicates the widget can be resized from any corner or edge (if canDragResize is true).
    To restrict resizing to only certain corners, set resizeFrom to an Array of EdgeNames.
    
    Returns:
    
    EdgeName...
    
    See Also:
    
    Dragdrop overview and related methods, Drag resize Example
  - setScrollbarConstructor
```
public void setScrollbarConstructor(java.lang.String scrollbarConstructor)
                             throws java.lang.IllegalStateException
```
    The class that will be used to create custom scrollbars for this component. Set this attribute to a Scrollbar subclass with e.g. a different skinImgDir, to customize scrollbar appearance for this component only.
    When spriting is enabled and supported by the skin, the default scrollbarConstructor is changed to a different scrollbar class which handles scrollbar spriting. Spriting of the scrollbars of an individual component can therefore be disabled by creating the component with scrollbarConstructor set to the "Scrollbar" class. "Scrollbar" is a basic scrollbar class that does not employ spriting.
    Note : This is an advanced setting
    
    Parameters:
    
    scrollbarConstructor - Default value is "Scrollbar"
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Scrolling overview and related methods
  - setScrollbarSize
```
public void setScrollbarSize(int scrollbarSize)
```
    How thick should we make the scrollbars for this canvas. This only applies if showCustomScrollbars is true.
    NOTE: When spriting is enabled, changing the scrollbarSize may cause tiling of certain images and backgrounds that make up the custom scrollbar. This can be fixed for a component by creating it with scrollbarConstructor set to "Scrollbar"—a basic scrollbar class that does not employ spriting.
    Note : This is an advanced setting
    
    Parameters:
    
    scrollbarSize - Default value is 16
    
    See Also:
    
    getScrollbarSize(), Scrolling overview and related methods
  - getScrollbarSize
```
public int getScrollbarSize()
```
    How thick should we make the scrollbars for this canvas. This only applies if showCustomScrollbars is true.
    NOTE: When spriting is enabled, changing the scrollbarSize may cause tiling of certain images and backgrounds that make up the custom scrollbar. This can be fixed for a component by creating it with scrollbarConstructor set to "Scrollbar"—a basic scrollbar class that does not employ spriting.
    
    Returns:
    
    Returns the thickness of this widget's scrollbars.
    For canvases showing custom scrollbars this is determined from this.scrollbarSize
    
    See Also:
    
    getScrollbarSize(), Scrolling overview and related methods
  - setShadowDepth
```
public void setShadowDepth(int shadowDepth)
                    throws java.lang.IllegalStateException
```
    Depth of the shadow, or the virtual height above the page of the widget throwing the shadow.
    This is a single parameter that can be used to control both shadowSoftness and shadowOffset.
    
    Parameters:
    
    shadowDepth - Default value is 4
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
  - getShadowDepth
```
public int getShadowDepth()
```
    Depth of the shadow, or the virtual height above the page of the widget throwing the shadow.
    This is a single parameter that can be used to control both shadowSoftness and shadowOffset.
    
    Returns:
    
    int
  - setShadowImage
```
public void setShadowImage(java.lang.String shadowImage)
                    throws java.lang.IllegalStateException
```
    Base name of the series of images for the sides, corners, and center of the shadow.
    The actual image names fetched for the dropShadow combine the segment name and the shadowDepth setting. For example, given "ds.png" as the base name, a depth of 4, and the top-left segment of the shadow, we'd use "ds4_TL.png".
    The names for segments are the same as those given for controlling resizable edges; see resizeFrom. The center segment has the name "center". The center segment is the only segment that doesn't include the depth in the URL, so the final image name for the center given a baseName of "ds.png" would be just "ds_center.png".
    Note : This is an advanced setting
    
    Parameters:
    
    shadowImage - See SCImgURL . Default value is "[SKIN]ds.png"
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
  - getShadowImage
```
public java.lang.String getShadowImage()
```
    Base name of the series of images for the sides, corners, and center of the shadow.
    The actual image names fetched for the dropShadow combine the segment name and the shadowDepth setting. For example, given "ds.png" as the base name, a depth of 4, and the top-left segment of the shadow, we'd use "ds4_TL.png".
    The names for segments are the same as those given for controlling resizable edges; see resizeFrom. The center segment has the name "center". The center segment is the only segment that doesn't include the depth in the URL, so the final image name for the center given a baseName of "ds.png" would be just "ds_center.png".
    
    Returns:
    
    See SCImgURL
  - setShadowOffset
```
public void setShadowOffset(java.lang.Integer shadowOffset)
```
    Offset of the shadow. Defaults to half of shadowDepth if unset.
    Because of the blurred edges, a shadow is larger than the originating component by 2xsoftness. An shadowOffset of 0 means that the shadow will extend around the originating component equally in all directions.
    Note : This is an advanced setting
    
    Parameters:
    
    shadowOffset - Default value is null
    
    See Also:
    
    Shadows Example
  - getShadowOffset
```
public java.lang.Integer getShadowOffset()
```
    Offset of the shadow. Defaults to half of shadowDepth if unset.
    Because of the blurred edges, a shadow is larger than the originating component by 2xsoftness. An shadowOffset of 0 means that the shadow will extend around the originating component equally in all directions.
    
    Returns:
    
    Integer
    
    See Also:
    
    Shadows Example
  - setShadowSoftness
```
public void setShadowSoftness(java.lang.Integer shadowSoftness)
```
    Softness, or degree of blurring, of the shadow.
    A shadow with softness:x is 2x pixels larger in each direction than the element throwing the shadow, and the media for each edge should be x pixels wide/tall.
    Defaults to shadowDepth if unset.
    Note : This is an advanced setting
    
    Parameters:
    
    shadowSoftness - Default value is null
    
    See Also:
    
    Shadows Example
  - getShadowSoftness
```
public java.lang.Integer getShadowSoftness()
```
    Softness, or degree of blurring, of the shadow.
    A shadow with softness:x is 2x pixels larger in each direction than the element throwing the shadow, and the media for each edge should be x pixels wide/tall.
    Defaults to shadowDepth if unset.
    
    Returns:
    
    Integer
    
    See Also:
    
    Shadows Example
  - setShouldPrint
```
public void setShouldPrint(java.lang.Boolean shouldPrint)
```
    Whether this canvas should be included in a printable view.
    Default is to:
    - omit all peers (edges generated by showEdges:true, etc)
    - omit anything considered a "control", such as a button or menu (see PrintProperties.omitControls)
    - include everything else not marked shouldPrint:false
    Parameters:
    
    shouldPrint - Default value is null
    
    See Also:
    
    Printing overview and related methods
  - getShouldPrint
```
public java.lang.Boolean getShouldPrint()
```
    Whether this canvas should be included in a printable view.
    Default is to:
    - omit all peers (edges generated by showEdges:true, etc)
    - omit anything considered a "control", such as a button or menu (see PrintProperties.omitControls)
    - include everything else not marked shouldPrint:false
    Returns:
    
    Boolean
    
    See Also:
    
    Printing overview and related methods
  - setShowCustomScrollbars
```
public void setShowCustomScrollbars(boolean showCustomScrollbars)
                             throws java.lang.IllegalStateException
```
    Whether to use the browser's native scrollbars or Smart GWT-based scrollbars.
    Smart GWT-based scrollbars are skinnable, giving you complete control over look and feel. Smart GWT-based scrollbars also enable some interactions not possible with native scrollbars, such as variable height records in grids in combination with data paging.
    Native browser scrollbars are slightly faster simply because there are less Smart GWT components that need to be created, drawn and updated. Each visible Smart GWT-based scrollbar on the screen has roughly the impact of two StretchImgButtons.
    Smart GWT is always aware of the size of the scrollbar, regardless of whether native or custom scrollbars are used, and regardless of what operating system and/or operating system "theme" or "skin" is in use. This means Smart GWT will correctly report the viewport size, that is, the interior area of the widget excluding space taken by scrollbars, which is key for exactly filling a component with content without creating unnecessary scrolling.
    The showCustomScrollbars setting is typically overridden in load_skin.js in order to change the default for all Smart GWT components at once. This may be achieved via the static setShowCustomScrollbars() method or via a simple addProperties block, like so:
```
      isc.Canvas.addProperties({ showCustomScrollbars:false });
  
```
    On touch devices, custom scrollbars are disabled in favor of enabling native touch scrolling if available. However, custom scrollbars and native touch scrolling can be enabled for the component by setting alwaysShowScrollbars to true.
    Note : This is an advanced setting
    Parameters:
    
    showCustomScrollbars - Default value is true
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Scrolling overview and related methods
  - getShowCustomScrollbars
```
public boolean getShowCustomScrollbars()
```
    Whether to use the browser's native scrollbars or Smart GWT-based scrollbars.
    Smart GWT-based scrollbars are skinnable, giving you complete control over look and feel. Smart GWT-based scrollbars also enable some interactions not possible with native scrollbars, such as variable height records in grids in combination with data paging.
    Native browser scrollbars are slightly faster simply because there are less Smart GWT components that need to be created, drawn and updated. Each visible Smart GWT-based scrollbar on the screen has roughly the impact of two StretchImgButtons.
    Smart GWT is always aware of the size of the scrollbar, regardless of whether native or custom scrollbars are used, and regardless of what operating system and/or operating system "theme" or "skin" is in use. This means Smart GWT will correctly report the viewport size, that is, the interior area of the widget excluding space taken by scrollbars, which is key for exactly filling a component with content without creating unnecessary scrolling.
    The showCustomScrollbars setting is typically overridden in load_skin.js in order to change the default for all Smart GWT components at once. This may be achieved via the static setShowCustomScrollbars() method or via a simple addProperties block, like so:
```
      isc.Canvas.addProperties({ showCustomScrollbars:false });
  
```
    On touch devices, custom scrollbars are disabled in favor of enabling native touch scrolling if available. However, custom scrollbars and native touch scrolling can be enabled for the component by setting alwaysShowScrollbars to true.
    Returns:
    
    boolean
    
    See Also:
    
    Scrolling overview and related methods
  - setShowDragShadow
```
public void setShowDragShadow(java.lang.Boolean showDragShadow)
```
    When this widget is dragged, if its dragAppearance is "target", should we show a shadow behind the canvas during the drag.
    Note : This is an advanced setting
    
    Parameters:
    
    showDragShadow - Default value is null
    
    See Also:
    
    Dragdrop overview and related methods, Drag effects Example
  - getShowDragShadow
```
public java.lang.Boolean getShowDragShadow()
```
    When this widget is dragged, if its dragAppearance is "target", should we show a shadow behind the canvas during the drag.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Dragdrop overview and related methods, Drag effects Example
  - setShowEdges
```
public void setShowEdges(java.lang.Boolean showEdges)
                  throws java.lang.IllegalStateException
```
    Whether an EdgedCanvas should be used to show image-based edges around this component.
    
    Parameters:
    
    showEdges - Default value is false
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Edges Example
  - getShowEdges
```
public java.lang.Boolean getShowEdges()
```
    Whether an EdgedCanvas should be used to show image-based edges around this component.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Edges Example
  - setShowHover
```
public void setShowHover(java.lang.Boolean showHover)
```
    If this.canHover is true, should we show the global hover canvas by default when the user hovers over this canvas?
    
    Parameters:
    
    showHover - Default value is true
    
    See Also:
    
    getHoverHTML()
  - getShowHover
```
public java.lang.Boolean getShowHover()
```
    If this.canHover is true, should we show the global hover canvas by default when the user hovers over this canvas?
    
    Returns:
    
    Boolean
    
    See Also:
    
    getHoverHTML()
  - setShowHoverComponents
```
public void setShowHoverComponents(java.lang.Boolean showHoverComponents)
```
    When set to true, shows a widget hovering at the mouse point instead of the builtin hover label. Override getHoverComponent to provide the Canvas to show as the hoverComponent.
    Note : This is an advanced setting
    
    Parameters:
    
    showHoverComponents - Default value is false
  - getShowHoverComponents
```
public java.lang.Boolean getShowHoverComponents()
```
    When set to true, shows a widget hovering at the mouse point instead of the builtin hover label. Override getHoverComponent to provide the Canvas to show as the hoverComponent.
    
    Returns:
    
    Boolean
  - setShowResizeBar
```
public void setShowResizeBar(java.lang.Boolean showResizeBar)
```
    When this Canvas is included as a member in a Layout, whether a resizeBar should be shown after this member in the layout, to allow it to be resized.
    Whether a resizeBar is actually shown also depends on the defaultResizeBars attribute of the layout, and whether this Canvas is the last layout member.
    By default the resize bar acts on the Canvas that it is declared on. If you want the resize bar to instead act on the next member of the Layout (e.g. to collapse down or to the right), set resizeBarTarget as well.
    
    If this method is called after the component has been drawn/initialized: When this Canvas is included as a member in a Layout, dynamically updates whether a resizeBar should be shown after this member in the layout, to allow it to be resized.
    Whether a resizeBar is actually shown also depends on the defaultResizeBars attribute of the layout, and whether this Canvas is the last layout member.
    
    Parameters:
    
    showResizeBar - setting for this.showResizeBar. Default value is false
    
    See Also:
    
    setResizeBarTarget(java.lang.String), Layout.setDefaultResizeBars(com.smartgwt.client.types.LayoutResizeBarPolicy), LayoutMember overview and related methods, Nesting Example
  - getShowResizeBar
```
public java.lang.Boolean getShowResizeBar()
```
    When this Canvas is included as a member in a Layout, whether a resizeBar should be shown after this member in the layout, to allow it to be resized.
    Whether a resizeBar is actually shown also depends on the defaultResizeBars attribute of the layout, and whether this Canvas is the last layout member.
    By default the resize bar acts on the Canvas that it is declared on. If you want the resize bar to instead act on the next member of the Layout (e.g. to collapse down or to the right), set resizeBarTarget as well.
    
    Returns:
    
    Boolean
    
    See Also:
    
    getResizeBarTarget(), Layout.getDefaultResizeBars(), LayoutMember overview and related methods, Nesting Example
  - setShowShadow
```
public void setShowShadow(java.lang.Boolean showShadow)
```
    Whether to show a drop shadow for this Canvas.
    Developers should be aware that the drop shadow is drawn outside the specified width and height of the widget meaning a widget with shadows takes up a little more space than it otherwise would. A full screen canvas with showShadow set to true as this would be likely to cause browser scrollbars to appear - developers can handle this by either setting this property to false on full-screen widgets, or by setting overflow to "hidden" on the <body> element browser-level scrolling is never intended to occur.
    
    If this method is called after the component has been drawn/initialized: Method to update showShadow.
    
    Parameters:
    
    showShadow - true if the shadow should be visible false if not. Default value is false
    
    See Also:
    
    Shadows Example
  - getShowShadow
```
public java.lang.Boolean getShowShadow()
```
    Whether to show a drop shadow for this Canvas.
    Developers should be aware that the drop shadow is drawn outside the specified width and height of the widget meaning a widget with shadows takes up a little more space than it otherwise would. A full screen canvas with showShadow set to true as this would be likely to cause browser scrollbars to appear - developers can handle this by either setting this property to false on full-screen widgets, or by setting overflow to "hidden" on the <body> element browser-level scrolling is never intended to occur.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Shadows Example
  - setShowSnapGrid
```
public void setShowSnapGrid(java.lang.Boolean showSnapGrid)
```
    Whether to show a snap grid for this Canvas. Note that the grid is only shown when either childrenSnapToGrid or childrenSnapResizeToGrid is true.
    Grid is based on snapHGap and snapVGap properties.
    
    If this method is called after the component has been drawn/initialized: Set the showSnapGrid property.
    
    Parameters:
    
    showSnapGrid - Default value is null
  - getShowSnapGrid
```
public java.lang.Boolean getShowSnapGrid()
```
    Whether to show a snap grid for this Canvas. Note that the grid is only shown when either childrenSnapToGrid or childrenSnapResizeToGrid is true.
    Grid is based on snapHGap and snapVGap properties.
    
    Returns:
    
    Boolean
  - setShrinkElementOnHide
```
public void setShrinkElementOnHide(boolean shrinkElementOnHide)
```
    This is an advanced setting. If set to true, when a widget is hidden, the widget's handle will be resized such that it takes up no space, in addition to having its css visibility property set to "hidden".
    In addition to preventing the size of this widget from impacting the scroll size of any parent widget while hidden, this setting works around a native bug observed in Internet Explorer 10, whereby an <IFRAME> element with visibility set to hidden can cause rendering problems, if the HTML loaded by the <IFRAME> contains a <frameset>. In this case the browser may refuse to draw other elements at the same coordinates with a lower z-index than the hidden frame. Setting this property to true works around this problem for cases where an <IFRAME> containing a <frameset will be rendered out, for example in an HTMLFlow with contentsType set to "page".
    Note : This is an advanced setting
    
    Parameters:
    
    shrinkElementOnHide - Default value is false
    
    See Also:
    
    Visibility overview and related methods
  - getShrinkElementOnHide
```
public boolean getShrinkElementOnHide()
```
    This is an advanced setting. If set to true, when a widget is hidden, the widget's handle will be resized such that it takes up no space, in addition to having its css visibility property set to "hidden".
    In addition to preventing the size of this widget from impacting the scroll size of any parent widget while hidden, this setting works around a native bug observed in Internet Explorer 10, whereby an <IFRAME> element with visibility set to hidden can cause rendering problems, if the HTML loaded by the <IFRAME> contains a <frameset>. In this case the browser may refuse to draw other elements at the same coordinates with a lower z-index than the hidden frame. Setting this property to true works around this problem for cases where an <IFRAME> containing a <frameset will be rendered out, for example in an HTMLFlow with contentsType set to "page".
    
    Returns:
    
    boolean
    
    See Also:
    
    Visibility overview and related methods
  - setSkinImgDir
```
public void setSkinImgDir(java.lang.String skinImgDir)
```
    Default directory for skin images (those defined by the class), relative to the Page-wide skinDir.
    Note : This is an advanced setting
    
    Parameters:
    
    skinImgDir - Default value is "images/"
    
    See Also:
    
    Images overview and related methods
  - getSkinImgDir
```
public java.lang.String getSkinImgDir()
```
    Default directory for skin images (those defined by the class), relative to the Page-wide skinDir.
    
    Returns:
    
    String
    
    See Also:
    
    Images overview and related methods
  - setSnapAlignCandidates
```
public void setSnapAlignCandidates(Canvas... snapAlignCandidates)
```
    When childrenSnapAlign is enabled, list of candidates to check for alignment.
    If a list of snapAlignCandidates is never provided, the default is to use all children that are not explicitly excluded via isSnapAlignCandidate, including automatically adding newly added children as candidates, and ignoring children that have been removed. Use addSnapAlignCandidate() and removeSnapAlignCandidate() to add and remove special candidates while retaining all children as default candidates.
    Possible candidates which are not drawn or are hidden are automatically ignored.
    
    Parameters:
    
    snapAlignCandidates - Default value is null
  - getSnapAlignCandidates
```
public Canvas[] getSnapAlignCandidates()
```
    When childrenSnapAlign is enabled, list of candidates to check for alignment.
    If a list of snapAlignCandidates is never provided, the default is to use all children that are not explicitly excluded via isSnapAlignCandidate, including automatically adding newly added children as candidates, and ignoring children that have been removed. Use addSnapAlignCandidate() and removeSnapAlignCandidate() to add and remove special candidates while retaining all children as default candidates.
    Possible candidates which are not drawn or are hidden are automatically ignored.
    
    Returns:
    
    Canvas...
  - setSnapAlignCenterLineStyle
```
public void setSnapAlignCenterLineStyle(java.lang.String snapAlignCenterLineStyle)
                                 throws java.lang.IllegalStateException
```
    CSS border declaration used for the line shown to indicate snapping to a center line when childrenSnapAlign is set.
    
    Parameters:
    
    snapAlignCenterLineStyle - Default value is "1px solid blue"
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
  - getSnapAlignCenterLineStyle
```
public java.lang.String getSnapAlignCenterLineStyle()
```
    CSS border declaration used for the line shown to indicate snapping to a center line when childrenSnapAlign is set.
    
    Returns:
    
    String
  - setSnapAlignEdgeLineStyle
```
public void setSnapAlignEdgeLineStyle(java.lang.String snapAlignEdgeLineStyle)
                               throws java.lang.IllegalStateException
```
    CSS border declaration used for the line shown to indicate snapping to a edge line when childrenSnapAlign is set.
    
    Parameters:
    
    snapAlignEdgeLineStyle - Default value is "1px solid #555555"
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
  - getSnapAlignEdgeLineStyle
```
public java.lang.String getSnapAlignEdgeLineStyle()
```
    CSS border declaration used for the line shown to indicate snapping to a edge line when childrenSnapAlign is set.
    
    Returns:
    
    String
  - setSnapAxis
```
public void setSnapAxis(java.lang.String snapAxis)
```
    Describes which axes to apply snap-to-grid to. Valid values are "horizontal", "vertical" or "both".
    
    Parameters:
    
    snapAxis - Default value is "both"
    
    See Also:
    
    setSnapToGrid(java.lang.Boolean), setSnapResizeToGrid(java.lang.Boolean), setChildrenSnapToGrid(java.lang.Boolean), setChildrenSnapResizeToGrid(java.lang.Boolean), Dragdrop overview and related methods
  - getSnapAxis
```
public java.lang.String getSnapAxis()
```
    Describes which axes to apply snap-to-grid to. Valid values are "horizontal", "vertical" or "both".
    
    Returns:
    
    String
    
    See Also:
    
    getSnapToGrid(), getSnapResizeToGrid(), getChildrenSnapToGrid(), getChildrenSnapResizeToGrid(), Dragdrop overview and related methods
  - setSnapEdge
```
public void setSnapEdge(java.lang.String snapEdge)
```
    If snapTo is defined to this widget, this property can be used to define which edge of this widget should be snapped to an edge of the master or parent element.
    If unspecified the, default snapTo behavior is set up to align the "snapTo" edge of this widget with the snapTo edge of the master or parent.
    
    If this method is called after the component has been drawn/initialized: Set the snapEdge property of this canvas, and handle repositioning.
    
    Parameters:
    
    snapEdge - new snapEdge value. Default value is null
    
    See Also:
    
    setSnapTo(java.lang.String), Sizing overview and related methods
  - getSnapEdge
```
public java.lang.String getSnapEdge()
```
    If snapTo is defined to this widget, this property can be used to define which edge of this widget should be snapped to an edge of the master or parent element.
    If unspecified the, default snapTo behavior is set up to align the "snapTo" edge of this widget with the snapTo edge of the master or parent.
    
    Returns:
    
    Return the snapEdge value of this object
    
    See Also:
    
    getSnapTo(), Sizing overview and related methods
  - setSnapHDirection
```
public void setSnapHDirection(java.lang.String snapHDirection)
```
    The horizontal snap direction. Set this value to "before" to snap to the nearest gridpoint to the left; set it to "after" to snap to the nearest gridpoint to the right; and set it to "nearest" to snap to the nearest gridpoint in either direction.
    
    Parameters:
    
    snapHDirection - Default value is "after"
    
    See Also:
    
    setSnapToGrid(java.lang.Boolean), setSnapResizeToGrid(java.lang.Boolean), setChildrenSnapToGrid(java.lang.Boolean), setChildrenSnapResizeToGrid(java.lang.Boolean), Dragdrop overview and related methods
  - getSnapHDirection
```
public java.lang.String getSnapHDirection()
```
    The horizontal snap direction. Set this value to "before" to snap to the nearest gridpoint to the left; set it to "after" to snap to the nearest gridpoint to the right; and set it to "nearest" to snap to the nearest gridpoint in either direction.
    
    Returns:
    
    String
    
    See Also:
    
    getSnapToGrid(), getSnapResizeToGrid(), getChildrenSnapToGrid(), getChildrenSnapResizeToGrid(), Dragdrop overview and related methods
  - setSnapHGap
```
public void setSnapHGap(int snapHGap)
```
    The horizontal grid size to use, in pixels, when snap-to-grid is enabled.
    
    Parameters:
    
    snapHGap - Default value is 20
    
    See Also:
    
    setSnapToGrid(java.lang.Boolean), setSnapResizeToGrid(java.lang.Boolean), setChildrenSnapToGrid(java.lang.Boolean), setChildrenSnapResizeToGrid(java.lang.Boolean), Dragdrop overview and related methods
  - getSnapHGap
```
public int getSnapHGap()
```
    The horizontal grid size to use, in pixels, when snap-to-grid is enabled.
    
    Returns:
    
    int
    
    See Also:
    
    getSnapToGrid(), getSnapResizeToGrid(), getChildrenSnapToGrid(), getChildrenSnapResizeToGrid(), Dragdrop overview and related methods
  - setSnapOffsetLeft
```
public void setSnapOffsetLeft(java.lang.Integer snapOffsetLeft)
```
    If snapTo is defined for this widget, this property can be used to specify an offset in px or percentage for the left coordinate of this widget.
    For example if snapTo is specified as "L" and snapOffsetLeft is set to 6, this widget will be rendered 6px inside the left edge of its parent or master element. Alternatively if snapTo was set to "R", a snapOffsetLeft value of -6 would cause the component to be rendered 6px inside the right edge of its parent or master canvas.
    
    If this method is called after the component has been drawn/initialized: Setter for snapOffsetLeft.
    
    Parameters:
    
    snapOffsetLeft - new snapOffsetLeft value.. Default value is null
    
    See Also:
    
    setSnapTo(java.lang.String), Sizing overview and related methods
  - getSnapOffsetLeft
```
public java.lang.Integer getSnapOffsetLeft()
```
    If snapTo is defined for this widget, this property can be used to specify an offset in px or percentage for the left coordinate of this widget.
    For example if snapTo is specified as "L" and snapOffsetLeft is set to 6, this widget will be rendered 6px inside the left edge of its parent or master element. Alternatively if snapTo was set to "R", a snapOffsetLeft value of -6 would cause the component to be rendered 6px inside the right edge of its parent or master canvas.
    
    Returns:
    
    Integer
    
    See Also:
    
    getSnapTo(), Sizing overview and related methods
  - setSnapOffsetTop
```
public void setSnapOffsetTop(java.lang.Integer snapOffsetTop)
```
    If snapTo is defined for this widget, this property can be used to specify an offset in px or percentage for the top coordinate of this widget.
    For example if snapTo is specified as "T" and snapOffsetTop is set to 6, this widget will be rendered 6px below the top edge of its parent or master element. . Alternatively if snapTo was set to "B", a snapOffsetTop value of -6 would cause the component to be rendered 6px inside the bottom edge of its parent or master canvas.
    
    If this method is called after the component has been drawn/initialized: Setter for snapOffsetTop.
    
    Parameters:
    
    snapOffsetTop - new snapOffsetTop value.. Default value is null
    
    See Also:
    
    setSnapTo(java.lang.String), Sizing overview and related methods
  - getSnapOffsetTop
```
public java.lang.Integer getSnapOffsetTop()
```
    If snapTo is defined for this widget, this property can be used to specify an offset in px or percentage for the top coordinate of this widget.
    For example if snapTo is specified as "T" and snapOffsetTop is set to 6, this widget will be rendered 6px below the top edge of its parent or master element. . Alternatively if snapTo was set to "B", a snapOffsetTop value of -6 would cause the component to be rendered 6px inside the bottom edge of its parent or master canvas.
    
    Returns:
    
    Integer
    
    See Also:
    
    getSnapTo(), Sizing overview and related methods
  - setSnapOnDrop
```
public void setSnapOnDrop(java.lang.Boolean snapOnDrop)
```
    When this canvas is dropped onto an object supporting snap-to-grid, should it snap to the grid (true, the default) or just drop wherever the mouse is (false).
    Note : This is an advanced setting
    
    Parameters:
    
    snapOnDrop - Default value is true
    
    See Also:
    
    setSnapToGrid(java.lang.Boolean), com.smartgwt.client.widgets.Canvas#shouldSnapOnDrop, Dragdrop overview and related methods
  - getSnapOnDrop
```
public java.lang.Boolean getSnapOnDrop()
```
    When this canvas is dropped onto an object supporting snap-to-grid, should it snap to the grid (true, the default) or just drop wherever the mouse is (false).
    
    Returns:
    
    Boolean
    
    See Also:
    
    getSnapToGrid(), com.smartgwt.client.widgets.Canvas#shouldSnapOnDrop, Dragdrop overview and related methods
  - setSnapResizeToAlign
```
public void setSnapResizeToAlign(java.lang.Boolean snapResizeToAlign)
```
    Flag to disable snapping to alignment when this Canvas is resized.
    To control snapping to align for the children resized within this Canvas, see childrenResizeSnapAlign instead.
    
    Parameters:
    
    snapResizeToAlign - Default value is null
  - getSnapResizeToAlign
```
public java.lang.Boolean getSnapResizeToAlign()
```
    Flag to disable snapping to alignment when this Canvas is resized.
    To control snapping to align for the children resized within this Canvas, see childrenResizeSnapAlign instead.
    
    Returns:
    
    Boolean
  - setSnapResizeToGrid
```
public void setSnapResizeToGrid(java.lang.Boolean snapResizeToGrid)
```
    Causes this canvas to snap to its parent's grid when resizing. Note that this value defaults to the Canvas's snapToGrid value if undefined.
    
    Parameters:
    
    snapResizeToGrid - Default value is null
    
    See Also:
    
    Dragdrop overview and related methods
  - getSnapResizeToGrid
```
public java.lang.Boolean getSnapResizeToGrid()
```
    Causes this canvas to snap to its parent's grid when resizing. Note that this value defaults to the Canvas's snapToGrid value if undefined.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Dragdrop overview and related methods
  - setSnapTo
```
public void setSnapTo(java.lang.String snapTo)
```
    Position this widget such that it is aligned with ("snapped to") an edge of its master (if specified), or its parent canvas.
    Note that this property also impacts the sizing of this widget. If this widgets size is specified as a percent value, and has no explicit percentSource, sizing will be calculated based on the size of the master canvas when snapTo is set.
    Possible values: BR, BL, TR, TL, R, L, B, T, C where B=Bottom, T=Top, L=Left, R=right and C=center
    Standard snapTo behavior will attach the outer edge of the widget to the parent or master element - for example setting snapTo to "B" would align the bottom edge of this component with the bottom edge of the master or parent element (and center this component horizontally over its master or parent element). snapEdge can be specified to change this behavior allowing the developer to, for example, align the top edge of this component with the bottom edge of its master canvas.
    snapOffsetLeft and snapOffsetTop may also be specified to offset the element from exact snapTo alignment.
    
    If this method is called after the component has been drawn/initialized: Set the snapTo property of this canvas, and handle repositioning.
    
    Parameters:
    
    snapTo - new snapTo value. Default value is null
    
    See Also:
    
    setSnapEdge(java.lang.String), setPercentBox(com.smartgwt.client.types.PercentBoxModel), Sizing overview and related methods
  - getSnapTo
```
public java.lang.String getSnapTo()
```
    Position this widget such that it is aligned with ("snapped to") an edge of its master (if specified), or its parent canvas.
    Note that this property also impacts the sizing of this widget. If this widgets size is specified as a percent value, and has no explicit percentSource, sizing will be calculated based on the size of the master canvas when snapTo is set.
    Possible values: BR, BL, TR, TL, R, L, B, T, C where B=Bottom, T=Top, L=Left, R=right and C=center
    Standard snapTo behavior will attach the outer edge of the widget to the parent or master element - for example setting snapTo to "B" would align the bottom edge of this component with the bottom edge of the master or parent element (and center this component horizontally over its master or parent element). snapEdge can be specified to change this behavior allowing the developer to, for example, align the top edge of this component with the bottom edge of its master canvas.
    snapOffsetLeft and snapOffsetTop may also be specified to offset the element from exact snapTo alignment.
    
    Returns:
    
    Return the snapTo value of this object
    
    See Also:
    
    getSnapEdge(), getPercentBox(), Sizing overview and related methods
  - setSnapToAlign
```
public void setSnapToAlign(java.lang.Boolean snapToAlign)
```
    Flag to disable snapping to alignment when this Canvas is dragged when childrenSnapAlign is enabled on this Canvas' parent.
    To control snapping to align for the children dragged within this Canvas, see childrenSnapAlign instead.
    
    Parameters:
    
    snapToAlign - Default value is null
  - getSnapToAlign
```
public java.lang.Boolean getSnapToAlign()
```
    Flag to disable snapping to alignment when this Canvas is dragged when childrenSnapAlign is enabled on this Canvas' parent.
    To control snapping to align for the children dragged within this Canvas, see childrenSnapAlign instead.
    
    Returns:
    
    Boolean
  - setSnapToCenterAlign
```
public void setSnapToCenterAlign(java.lang.Boolean snapToCenterAlign)
```
    Flag to disable snapping to center alignment when this Canvas is dragged when childrenSnapAlign is enabled on this Canvas' parent.
    
    Parameters:
    
    snapToCenterAlign - Default value is null
  - getSnapToCenterAlign
```
public java.lang.Boolean getSnapToCenterAlign()
```
    Flag to disable snapping to center alignment when this Canvas is dragged when childrenSnapAlign is enabled on this Canvas' parent.
    
    Returns:
    
    Boolean
  - setSnapToEdgeAlign
```
public void setSnapToEdgeAlign(java.lang.Boolean snapToEdgeAlign)
```
    Flag to disable snapping to edge alignment when this Canvas is dragged when childrenSnapAlign is enabled on this Canvas' parent.
    
    Parameters:
    
    snapToEdgeAlign - Default value is null
  - getSnapToEdgeAlign
```
public java.lang.Boolean getSnapToEdgeAlign()
```
    Flag to disable snapping to edge alignment when this Canvas is dragged when childrenSnapAlign is enabled on this Canvas' parent.
    
    Returns:
    
    Boolean
  - setSnapToGrid
```
public void setSnapToGrid(java.lang.Boolean snapToGrid)
```
    Causes this canvas to snap to its parent's grid when dragging.
    
    Parameters:
    
    snapToGrid - Default value is null
    
    See Also:
    
    setChildrenSnapToGrid(java.lang.Boolean), Dragdrop overview and related methods
  - getSnapToGrid
```
public java.lang.Boolean getSnapToGrid()
```
    Causes this canvas to snap to its parent's grid when dragging.
    
    Returns:
    
    Boolean
    
    See Also:
    
    getChildrenSnapToGrid(), Dragdrop overview and related methods
  - setSnapVDirection
```
public void setSnapVDirection(java.lang.String snapVDirection)
```
    The vertical snap direction. Set this value to "before" to snap to the nearest gridpoint above; set it to "after" to snap to the nearest gridpoint below; and set it to "nearest" to snap to the nearest gridpoint in either direction.
    
    Parameters:
    
    snapVDirection - Default value is "after"
    
    See Also:
    
    setSnapToGrid(java.lang.Boolean), setSnapResizeToGrid(java.lang.Boolean), setChildrenSnapToGrid(java.lang.Boolean), setChildrenSnapResizeToGrid(java.lang.Boolean), Dragdrop overview and related methods
  - getSnapVDirection
```
public java.lang.String getSnapVDirection()
```
    The vertical snap direction. Set this value to "before" to snap to the nearest gridpoint above; set it to "after" to snap to the nearest gridpoint below; and set it to "nearest" to snap to the nearest gridpoint in either direction.
    
    Returns:
    
    String
    
    See Also:
    
    getSnapToGrid(), getSnapResizeToGrid(), getChildrenSnapToGrid(), getChildrenSnapResizeToGrid(), Dragdrop overview and related methods
  - setSnapVGap
```
public void setSnapVGap(int snapVGap)
```
    The vertical grid size to use, in pixels, when snap-to-grid is enabled.
    
    Parameters:
    
    snapVGap - Default value is 20
    
    See Also:
    
    setSnapToGrid(java.lang.Boolean), setSnapResizeToGrid(java.lang.Boolean), setChildrenSnapToGrid(java.lang.Boolean), setChildrenSnapResizeToGrid(java.lang.Boolean), Dragdrop overview and related methods
  - getSnapVGap
```
public int getSnapVGap()
```
    The vertical grid size to use, in pixels, when snap-to-grid is enabled.
    
    Returns:
    
    int
    
    See Also:
    
    getSnapToGrid(), getSnapResizeToGrid(), getChildrenSnapToGrid(), getChildrenSnapResizeToGrid(), Dragdrop overview and related methods
  - setStyleName
```
public void setStyleName(java.lang.String styleName)
```
    The CSS class applied to this widget as a whole.
    
    If this method is called after the component has been drawn/initialized: Sets the CSS class for this widget
    
    Overrides:
    
    setStyleName in class com.google.gwt.user.client.ui.UIObject
    
    Parameters:
    
    styleName - new CSS style name See CSSStyleName . Default value is "normal"
    
    See Also:
    
    Appearance overview and related methods, CSS styles Example
  - getStyleName
```
public java.lang.String getStyleName()
```
    The CSS class applied to this widget as a whole.
    
    Overrides:
    
    getStyleName in class com.google.gwt.user.client.ui.UIObject
    
    Returns:
    
    See CSSStyleName
    
    See Also:
    
    Appearance overview and related methods, CSS styles Example
  - setTabIndex
```
public void setTabIndex(java.lang.Integer tabIndex)
```
    If specified this governs the tabIndex of the widget in the page's tab order. Note that by default Smart GWT auto-assigns tab-indices, ensuring focusable widgets are reachable by tabbing in the order in which they are drawn on the page. canvas.tabIndex cannot be set to greater than TAB_INDEX_FLOOR - as we reserve the values above this range for auto-assigned tab-indices.
    
    If this method is called after the component has been drawn/initialized: Assign an explicit tabIndex to this widget.
    Note : This is an advanced setting
    
    Parameters:
    
    tabIndex - New tabIndex for this widget. Must be less than TAB_INDEX_FLOOR to avoid interfering with auto-assigned tab indices on the page.. Default value is null
    
    See Also:
    
    Focus overview and related methods
  - getTabIndex
```
public java.lang.Integer getTabIndex()
```
    If specified this governs the tabIndex of the widget in the page's tab order. Note that by default Smart GWT auto-assigns tab-indices, ensuring focusable widgets are reachable by tabbing in the order in which they are drawn on the page. canvas.tabIndex cannot be set to greater than TAB_INDEX_FLOOR - as we reserve the values above this range for auto-assigned tab-indices.
    
    Returns:
    
    Integer
    
    See Also:
    
    Focus overview and related methods
  - setTop
```
public void setTop(int top)
```
    Number of pixels the top of the widget is offset down from its default drawing context (either its parent's top-left corner, or the document flow, depending on the value of the position property).
    Can also be set as a percentage, specified as a String ending in '%', eg, "50%". In this case the top coordinate is considered as a percentage of the specified height of the parent.
    
    If this method is called after the component has been drawn/initialized: Set the top coordinate of this object, relative to its enclosing context, in pixels.
    NOTE: if you're setting multiple coordinates, use setRect() or moveTo() instead
    
    Parameters:
    
    top - new top coordinate. Default value is 0
    
    See Also:
    
    Positioning overview and related methods
  - getTop
```
public int getTop()
```
    Number of pixels the top of the widget is offset down from its default drawing context (either its parent's top-left corner, or the document flow, depending on the value of the position property).
    Can also be set as a percentage, specified as a String ending in '%', eg, "50%". In this case the top coordinate is considered as a percentage of the specified height of the parent.
    
    Returns:
    
    Return the top coordinate of this object, relative to its enclosing context, in pixels.
    
    See Also:
    
    Positioning overview and related methods
  - setTop
```
public void setTop(java.lang.String top)
```
    Number of pixels the top of the widget is offset down from its default drawing context (either its parent's top-left corner, or the document flow, depending on the value of the position property).
    Can also be set as a percentage, specified as a String ending in '%', eg, "50%". In this case the top coordinate is considered as a percentage of the specified height of the parent.
    
    If this method is called after the component has been drawn/initialized: Set the top coordinate of this object, relative to its enclosing context, in pixels.
    NOTE: if you're setting multiple coordinates, use setRect() or moveTo() instead
    
    Parameters:
    
    top - new top coordinate. Default value is 0
    
    See Also:
    
    Positioning overview and related methods
  - getTopElement
```
public Canvas getTopElement()
                     throws java.lang.IllegalStateException
```
    The top-most Canvas (i.e., not a child of any other Canvas), if any, in this widget's containment hierarchy.
    Note : This method should be called only after the widget has been rendered.
    
    Returns:
    
    Canvas
    
    Throws:
    
    java.lang.IllegalStateException - if this widget has not yet been rendered.
    
    See Also:
    
    Containment overview and related methods
  - setUseBackMask
```
public void setUseBackMask(java.lang.Boolean useBackMask)
```
    In earlier versions of Internet Explorer (pre IE9), a native limitation exists whereby if HTML elements are overlapping on the page, certain elements can appear to "burn through" elements in the same position with a higher z-index. Specific cases in which this have been observed include Applets, <IFRAME> elements, and for older versions of IE, native <SELECT> items.
    The backMask is a workaround for this issue. If useBackMask is set to true, the component will render an empty <IFRAME> element behind the canvas, which prevents this effect in all known cases.
    Has no effect in other browsers.
    Note : This is an advanced setting
    
    Parameters:
    
    useBackMask - Default value is false
  - getUseBackMask
```
public java.lang.Boolean getUseBackMask()
```
    In earlier versions of Internet Explorer (pre IE9), a native limitation exists whereby if HTML elements are overlapping on the page, certain elements can appear to "burn through" elements in the same position with a higher z-index. Specific cases in which this have been observed include Applets, <IFRAME> elements, and for older versions of IE, native <SELECT> items.
    The backMask is a workaround for this issue. If useBackMask is set to true, the component will render an empty <IFRAME> element behind the canvas, which prevents this effect in all known cases.
    Has no effect in other browsers.
    
    Returns:
    
    Boolean
  - setUseDragMask
```
public void setUseDragMask(boolean useDragMask)
```
    This flag controls whether we register the component as a maskable item with the EventHandler. If enabled, a backmask will be automatically created for the dragMoveTarget on the fly to avoid burnthrough e.g. by plugins or frames.
    The dragMaskType property controls what kind of mask is used in case useDragMask is enabled.
    
    Parameters:
    
    useDragMask - Default value is false
    
    See Also:
    
    Dragdrop overview and related methods
  - getUseDragMask
```
public boolean getUseDragMask()
```
    This flag controls whether we register the component as a maskable item with the EventHandler. If enabled, a backmask will be automatically created for the dragMoveTarget on the fly to avoid burnthrough e.g. by plugins or frames.
    The dragMaskType property controls what kind of mask is used in case useDragMask is enabled.
    
    Returns:
    
    boolean
    
    See Also:
    
    Dragdrop overview and related methods
  - setUseNativeDrag
```
public void setUseNativeDrag(java.lang.Boolean useNativeDrag)
                      throws java.lang.IllegalStateException
```
    If set, native HTML5 drag and drop will be used for all drags initiated on this widget (on browsers where this is supported).
    When using native HTML5 drags, the same series of events fires as for a normal drag (Canvas.dragStart(), Canvas.dropMove(), etc.), and the dragType / dropTypes system works. dragAppearance is not supported; however, basic customization of the browser's tracker image is supported in certain browsers via the EventHandler.setDragTrackerImage() API.
    The primary difference with a native drag is that it can be cross-frame; that is, the user can drag out of the current browser window and drop into a different window or tab.
    To provide information that will be available to a foreign frame, use EventHandler.setNativeDragData(). This API must be called when the Canvas.dragStart() event fires, and will not work if called at any other time.
    However, due to browser bugs and/or browser-imposed limitations, the information provided to setNativeDragData cannot be accessed in the foreign frame until the actual drop occurs (mouse button released). This means drop eligibility cannot be determined dynamically based on the dragged data; instead, eligibility can only be determined based on the dragType / dropTypes system. For this reason, a dragType must be set on the source of a drag.
    NOTE: Although Internet Explorer 10+ supports a subset of the HTML5 drag and drop standard, native drag and drop is disabled in IE because cross-window drags—the primary purpose of this API—are not possible.
    
    Parameters:
    
    useNativeDrag - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Dragdrop overview and related methods, Native Drag Create Example
  - getUseNativeDrag
```
public java.lang.Boolean getUseNativeDrag()
```
    If set, native HTML5 drag and drop will be used for all drags initiated on this widget (on browsers where this is supported).
    When using native HTML5 drags, the same series of events fires as for a normal drag (Canvas.dragStart(), Canvas.dropMove(), etc.), and the dragType / dropTypes system works. dragAppearance is not supported; however, basic customization of the browser's tracker image is supported in certain browsers via the EventHandler.setDragTrackerImage() API.
    The primary difference with a native drag is that it can be cross-frame; that is, the user can drag out of the current browser window and drop into a different window or tab.
    To provide information that will be available to a foreign frame, use EventHandler.setNativeDragData(). This API must be called when the Canvas.dragStart() event fires, and will not work if called at any other time.
    However, due to browser bugs and/or browser-imposed limitations, the information provided to setNativeDragData cannot be accessed in the foreign frame until the actual drop occurs (mouse button released). This means drop eligibility cannot be determined dynamically based on the dragged data; instead, eligibility can only be determined based on the dragType / dropTypes system. For this reason, a dragType must be set on the source of a drag.
    NOTE: Although Internet Explorer 10+ supports a subset of the HTML5 drag and drop standard, native drag and drop is disabled in IE because cross-window drags—the primary purpose of this API—are not possible.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Dragdrop overview and related methods, Native Drag Create Example
  - setUseOpacityFilter
```
public void setUseOpacityFilter(java.lang.Boolean useOpacityFilter)
                         throws java.lang.IllegalStateException
```
    Configures where the Opacity filter is used for IE6-8.
    With the default of null, opacity filters are used unless neverUseFilters has been set. When set explicitly to true, opacity filters are used even if neverUseFilters is true.
    See IEFilters for background.
    
    Parameters:
    
    useOpacityFilter - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    IEFilters overview and related methods
  - getUseOpacityFilter
```
public java.lang.Boolean getUseOpacityFilter()
```
    Configures where the Opacity filter is used for IE6-8.
    With the default of null, opacity filters are used unless neverUseFilters has been set. When set explicitly to true, opacity filters are used even if neverUseFilters is true.
    See IEFilters for background.
    
    Returns:
    
    Boolean
    
    See Also:
    
    IEFilters overview and related methods
  - setUseTouchScrolling
```
public void setUseTouchScrolling(java.lang.Boolean useTouchScrolling)
                          throws java.lang.IllegalStateException
```
    On touch devices, if this Canvas can be scrolled, should touch-dragging the content area result in scrolling? Set to false if touch-dragging should not cause scrolling. Note that setting to false enables the use of custom scrollbars on touch devices.
    useTouchScrolling can default to false if disableTouchScrollingForDrag is true and various built-in drag operations are enabled that normally interfere with touch scrolling (e.g. ListGrid.canDragSelect and ListGrid.canReorderRecords).
    When touch scrolling is disabled, it can be difficult to interact with parts of the custom scrollbars at their default size of 16 pixels. In touch browsers, any touch 8px before the thumb of a custom scrollbar will be mapped to the thumb, but the other parts of the scrollbar do not have a similar tolerance applied. The width of the custom scrollbars can be increased by setting the scrollbarSize to a larger value, but note that when spriting is enabled, changing the scrollbarSize may cause tiling of certain images and backgrounds that make up the custom scrollbar. This can be fixed for a component by creating it with scrollbarConstructor set to "Scrollbar"—a basic scrollbar class that does not employ spriting.
    Note : This is an advanced setting
    
    Parameters:
    
    useTouchScrolling - Default value is null
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the component has been created
    
    See Also:
    
    Scrolling overview and related methods
  - getUseTouchScrolling
```
public java.lang.Boolean getUseTouchScrolling()
```
    On touch devices, if this Canvas can be scrolled, should touch-dragging the content area result in scrolling? Set to false if touch-dragging should not cause scrolling. Note that setting to false enables the use of custom scrollbars on touch devices.
    useTouchScrolling can default to false if disableTouchScrollingForDrag is true and various built-in drag operations are enabled that normally interfere with touch scrolling (e.g. ListGrid.canDragSelect and ListGrid.canReorderRecords).
    When touch scrolling is disabled, it can be difficult to interact with parts of the custom scrollbars at their default size of 16 pixels. In touch browsers, any touch 8px before the thumb of a custom scrollbar will be mapped to the thumb, but the other parts of the scrollbar do not have a similar tolerance applied. The width of the custom scrollbars can be increased by setting the scrollbarSize to a larger value, but note that when spriting is enabled, changing the scrollbarSize may cause tiling of certain images and backgrounds that make up the custom scrollbar. This can be fixed for a component by creating it with scrollbarConstructor set to "Scrollbar"—a basic scrollbar class that does not employ spriting.
    
    Returns:
    
    Boolean
    
    See Also:
    
    Scrolling overview and related methods
  - setValuesManager
```
public void setValuesManager(ValuesManager valuesManager)
```
    ValuesManager for managing values displayed in this component. If specified at initialization time, this component will be added to the valuesManager via ValuesManager.addMember().
    ValuesManagers allow different fields of a single object to be displayed or edited across multiple UI components. Given a single values object, a valuesManager will handle determining the appropriate field values for its member components and displaying them / responding to edits if the components support this.
    Data may be derived simply from the specified fieldNames within the member components, or for complex nested data structures can be specified by both component and field-level DataPath.
    Note that components may be automatically bound to an existing valuesManager attached to a parent component if dataPath is specified. See dataPath for more information. Also note that if a databound component has a specified dataSource and dataPath but no specified valuesManager object one will be automatically generated as part of the databinding process
    
    If this method is called after the component has been drawn/initialized: Setter for the valuesManager attribute. This method may be called directly at runtime to set the ValuesManager for a component; it has the same effect as calling ValuesManager.addMember(), passing in this DataBoundComponent.
    Note : This is an advanced setting
    
    Parameters:
    
    valuesManager - new dataPath. Default value is null
  - getValuesManager
```
public ValuesManager getValuesManager()
```
    ValuesManager for managing values displayed in this component. If specified at initialization time, this component will be added to the valuesManager via ValuesManager.addMember().
    ValuesManagers allow different fields of a single object to be displayed or edited across multiple UI components. Given a single values object, a valuesManager will handle determining the appropriate field values for its member components and displaying them / responding to edits if the components support this.
    Data may be derived simply from the specified fieldNames within the member components, or for complex nested data structures can be specified by both component and field-level DataPath.
    Note that components may be automatically bound to an existing valuesManager attached to a parent component if dataPath is specified. See dataPath for more information. Also note that if a databound component has a specified dataSource and dataPath but no specified valuesManager object one will be automatically generated as part of the databinding process
    
    Returns:
    
    ValuesManager
  - setVisibility
```
public void setVisibility(Visibility visibility)
```
    Controls widget visibility when the widget is initialized. See Visibility type for details.
    
    If this method is called after the component has been drawn/initialized: Sets this widget's visibility to "inherit", so that it becomes visible if all of its parents are visible or it has no parents.
    If the widget has not yet been drawn (and doesn't have a parent or master), this method calls the draw method as well.
    
    Parameters:
    
    visibility - Default value is Canvas.INHERIT
    
    See Also:
    
    Appearance overview and related methods
  - getVisibility
```
public Visibility getVisibility()
```
    Controls widget visibility when the widget is initialized. See Visibility type for details.
    
    Returns:
    
    Returns true if the widget is visible, taking all parents into account, so that a widget which is not hidden might still report itself as not visible if it is within a hidden parent.
    NOTE: Undrawn widgets will report themselves as visible if they would be visible if drawn.
    
    See Also:
    
    Appearance overview and related methods
  - setWidth
```
public void setWidth(java.lang.Integer width)
```
    Size for this component's horizontal dimension.
    Can be a number of pixels, or a percentage like "50%". Percentage sizes are resolved to pixel values as follows:
    - If a canvas has a specified percentSource, sizing will be a percentage of the size of that widget (see also percentBox).
    - Otherwise, if a canvas has a master canvas, and snapTo is set for the widget, sizing will be a percentage of the size of that widget (see also percentBox).
    - Otherwise if this is a child of some other canvas, percentages will be based on the inner size of the parent canvas's viewport.
    - Otherwise, for top level widgets, sizing is calculated as a percentage of page size.
    Layouts may specially interpret percentage sizes on their children, and also allow "*" as a size.
    Note that if overflow is set to "visible", this size is a minimum, and the component may overflow to show all content and/or children.
    If trying to establish a default width for a custom component, set defaultWidth instead.
    
    If this method is called after the component has been drawn/initialized: Resizes the widget horizontally to the specified width (moves the right side of the widget). The width parameter can be expressed as a percentage of viewport size or as the number of pixels.
    NOTE: if you're setting multiple coordinates, use resizeTo() or setRect() instead
    Parameters:
    
    width - new width. Default value is null
    
    See Also:
    
    Sizing overview and related methods
  - getWidth
```
public java.lang.Integer getWidth()
```
    Size for this component's horizontal dimension.
    Can be a number of pixels, or a percentage like "50%". Percentage sizes are resolved to pixel values as follows:
    - If a canvas has a specified percentSource, sizing will be a percentage of the size of that widget (see also percentBox).
    - Otherwise, if a canvas has a master canvas, and snapTo is set for the widget, sizing will be a percentage of the size of that widget (see also percentBox).
    - Otherwise if this is a child of some other canvas, percentages will be based on the inner size of the parent canvas's viewport.
    - Otherwise, for top level widgets, sizing is calculated as a percentage of page size.
    Layouts may specially interpret percentage sizes on their children, and also allow "*" as a size.
    Note that if overflow is set to "visible", this size is a minimum, and the component may overflow to show all content and/or children.
    If trying to establish a default width for a custom component, set defaultWidth instead.
    Returns:
    
    Return the width of this object, in pixels.
    
    See Also:
    
    Sizing overview and related methods
  - setWidth
```
public void setWidth(java.lang.String width)
```
    Size for this component's horizontal dimension.
    Can be a number of pixels, or a percentage like "50%". Percentage sizes are resolved to pixel values as follows:
    - If a canvas has a specified percentSource, sizing will be a percentage of the size of that widget (see also percentBox).
    - Otherwise, if a canvas has a master canvas, and snapTo is set for the widget, sizing will be a percentage of the size of that widget (see also percentBox).
    - Otherwise if this is a child of some other canvas, percentages will be based on the inner size of the parent canvas's viewport.
    - Otherwise, for top level widgets, sizing is calculated as a percentage of page size.
    Layouts may specially interpret percentage sizes on their children, and also allow "*" as a size.
    Note that if overflow is set to "visible", this size is a minimum, and the component may overflow to show all content and/or children.
    If trying to establish a default width for a custom component, set defaultWidth instead.
    
    If this method is called after the component has been drawn/initialized: Resizes the widget horizontally to the specified width (moves the right side of the widget). The width parameter can be expressed as a percentage of viewport size or as the number of pixels.
    NOTE: if you're setting multiple coordinates, use resizeTo() or setRect() instead
    Overrides:
    
    setWidth in class com.google.gwt.user.client.ui.UIObject
    
    Parameters:
    
    width - new width. Default value is null
    
    See Also:
    
    Sizing overview and related methods
  - addChild
```
public Canvas addChild(Canvas newChild)
```
    Adds newChild as a child of this widget, set up a named object reference (i.e., this[name]) to the new widget if name argument is provided, and draw the child if this widget has been drawn already.
    If newChild has a parent it will be removed from it. If it has a master, it will be detached from it if the master is a child of a different parent. If newChild has peers, they'll be added to this widget as children as well.
    
    Parameters:
    
    newChild - new child canvas to add
    
    Returns:
    
    the new child, or null if it couldn't be added
    
    See Also:
    
    Containment overview and related methods
  - addChild
```
public Canvas addChild(Canvas newChild,
                       java.lang.String name)
```
    See Also:
    
    addChild(com.smartgwt.client.widgets.Canvas)
  - addChild
```
public Canvas addChild(Canvas newChild,
                       java.lang.String name,
                       java.lang.Boolean autoDraw)
```
    Adds newChild as a child of this widget, set up a named object reference (i.e., this[name]) to the new widget if name argument is provided, and draw the child if this widget has been drawn already.
    If newChild has a parent it will be removed from it. If it has a master, it will be detached from it if the master is a child of a different parent. If newChild has peers, they'll be added to this widget as children as well.
    
    Parameters:
    
    newChild - new child canvas to add
    
    name - name to assign to child (eg: this[name] == child)
    
    autoDraw - if false, child will not automatically be drawn (only for advanced use)
    
    Returns:
    
    the new child, or null if it couldn't be added
    
    See Also:
    
    Containment overview and related methods
  - addPeer
```
public Canvas addPeer(Canvas newPeer)
```
    Adds newPeer as a peer of this widget (also making it a child of this widget's parent, if any), set up a named object reference (i.e., this[name]) to the new widget if name is provided, and draw the peer if this widget has been drawn already.
    
    The widget to be added as a peer will be removed from its old master and/or parent, if any, and it will be added as a child to the parent of this canvas (if any)
    
    Parameters:
    
    newPeer - new peer widget to add
    
    Returns:
    
    the new peer, or null if it couldn't be added
    
    See Also:
    
    Containment overview and related methods
  - addPeer
```
public Canvas addPeer(Canvas newPeer,
                      java.lang.String name)
```
    See Also:
    
    addPeer(com.smartgwt.client.widgets.Canvas)
  - addPeer
```
public Canvas addPeer(Canvas newPeer,
                      java.lang.String name,
                      java.lang.Boolean autoDraw)
```
    See Also:
    
    addPeer(com.smartgwt.client.widgets.Canvas)
  - addPeer
```
public Canvas addPeer(Canvas newPeer,
                      java.lang.String name,
                      java.lang.Boolean autoDraw,
                      java.lang.Boolean preDraw)
```
    Adds newPeer as a peer of this widget (also making it a child of this widget's parent, if any), set up a named object reference (i.e., this[name]) to the new widget if name is provided, and draw the peer if this widget has been drawn already.
    
    The widget to be added as a peer will be removed from its old master and/or parent, if any, and it will be added as a child to the parent of this canvas (if any)
    
    Parameters:
    
    newPeer - new peer widget to add
    
    name - name to assign to peer (eg: this[peer] == child)
    
    autoDraw - if true, peer will not automatically be drawn (only for advanced use)
    
    preDraw - if true, when draw is called on the master widget, the peer will be drawn before the master
    
    Returns:
    
    the new peer, or null if it couldn't be added
    
    See Also:
    
    Containment overview and related methods
  - addSnapAlignCandidate
```
public void addSnapAlignCandidate(Canvas newCandidate)
```
    Add a candidate to snapAlignCandidates. Duplicates are automatically avoided.
    
    Parameters:
    
    newCandidate -
  - adjustForContent
```
public void adjustForContent(boolean immediate)
```
    This method tells a component to adjust for size changes made to content by external code.
    This is for very advanced use in which the contents of a Canvas are being directly updated by Ajax techniques, which is required for integration with some third-party libraries. Calling this method is required because browsers do not provide consistent events by which Smart GWT can be notified of external content changes.
    Only contents supplied to a widget via contents or via an override of getInnerHTML() should be manipulated directly. Contents automatically generated by Smart GWT components (such as the basic structure of a Button) should never be manipulated: these structures are considered internal, differ by platform, and will change without notice.
    
    Parameters:
    
    immediate - By default the adjustment will occur on a small delay for performance reasons. Pass in this parameter to force immediate adjustment.
    
    See Also:
    
    Sizing overview and related methods
  - animateFade
```
public void animateFade(java.lang.Integer opacity)
```
    Animate a change in opacity from the widget's current opacity to the specified opacity.
    
    Parameters:
    
    opacity - desired final opacity
    
    See Also:
    
    Fade Show & Hide Example
  - animateFade
```
public void animateFade(java.lang.Integer opacity,
                        AnimationCallback callback)
```
    See Also:
    
    animateFade(java.lang.Integer)
  - animateFade
```
public void animateFade(java.lang.Integer opacity,
                        AnimationCallback callback,
                        java.lang.Integer duration)
```
    See Also:
    
    animateFade(java.lang.Integer)
  - animateFade
```
public void animateFade(java.lang.Integer opacity,
                        AnimationCallback callback,
                        java.lang.Integer duration,
                        AnimationAcceleration acceleration)
```
    Animate a change in opacity from the widget's current opacity to the specified opacity.
    
    Parameters:
    
    opacity - desired final opacity
    
    callback - When the fade completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation
    
    duration - Duration in ms of the animated fade
    
    acceleration - Optional animation acceleration to bias the ratios
    
    See Also:
    
    Fade Show & Hide Example
  - animateMove
```
public void animateMove(java.lang.Integer left,
                        java.lang.Integer top)
```
    Animate a reposition of this canvas from its current position to the specified position
    
    Parameters:
    
    left - new left position (or null for unchanged)
    
    top - new top position (or null for unchanged)
    
    See Also:
    
    Fly Onscreen Example
  - animateMove
```
public void animateMove(java.lang.Integer left,
                        java.lang.Integer top,
                        AnimationCallback callback)
```
    See Also:
    
    animateMove(java.lang.Integer, java.lang.Integer)
  - animateMove
```
public void animateMove(java.lang.Integer left,
                        java.lang.Integer top,
                        AnimationCallback callback,
                        java.lang.Integer duration)
```
    See Also:
    
    animateMove(java.lang.Integer, java.lang.Integer)
  - animateMove
```
public void animateMove(java.lang.Integer left,
                        java.lang.Integer top,
                        AnimationCallback callback,
                        java.lang.Integer duration,
                        AnimationAcceleration acceleration)
```
    Animate a reposition of this canvas from its current position to the specified position
    
    Parameters:
    
    left - new left position (or null for unchanged)
    
    top - new top position (or null for unchanged)
    
    callback - When the move completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation
    
    duration - Duration in ms of the animated move
    
    acceleration - Optional acceleration effect to bias the ratios
    
    See Also:
    
    Fly Onscreen Example
  - animateRect
```
public void animateRect(java.lang.Integer left,
                        java.lang.Integer top,
                        java.lang.Integer width,
                        java.lang.Integer height)
```
    Animate a reposition / resize of this canvas from its current size and position.
    
    Parameters:
    
    left - new left position (or null for unchanged)
    
    top - new top position (or null for unchanged)
    
    width - new width (or null for unchanged)
    
    height - new height (or null for unchanged)
    
    See Also:
    
    Zoom & Shrink Example
  - animateRect
```
public void animateRect(java.lang.Integer left,
                        java.lang.Integer top,
                        java.lang.Integer width,
                        java.lang.Integer height,
                        AnimationCallback callback)
```
    See Also:
    
    animateRect(java.lang.Integer, java.lang.Integer, java.lang.Integer, java.lang.Integer)
  - animateRect
```
public void animateRect(java.lang.Integer left,
                        java.lang.Integer top,
                        java.lang.Integer width,
                        java.lang.Integer height,
                        AnimationCallback callback,
                        java.lang.Integer duration)
```
    See Also:
    
    animateRect(java.lang.Integer, java.lang.Integer, java.lang.Integer, java.lang.Integer)
  - animateRect
```
public void animateRect(java.lang.Integer left,
                        java.lang.Integer top,
                        java.lang.Integer width,
                        java.lang.Integer height,
                        AnimationCallback callback,
                        java.lang.Integer duration,
                        AnimationAcceleration acceleration)
```
    Animate a reposition / resize of this canvas from its current size and position.
    
    Parameters:
    
    left - new left position (or null for unchanged)
    
    top - new top position (or null for unchanged)
    
    width - new width (or null for unchanged)
    
    height - new height (or null for unchanged)
    
    callback - When the setRect completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation
    
    duration - Duration in ms of the animated setRect
    
    acceleration - Optional acceleration effect to apply to the animation
    
    See Also:
    
    Zoom & Shrink Example
  - animateResize
```
public void animateResize(java.lang.Integer width,
                          java.lang.Integer height)
```
    Animate a resize of this canvas from its current size to the specified size
    
    Parameters:
    
    width - new width (or null for unchanged)
    
    height - new height (or null for unchanged)
    
    See Also:
    
    Resize Example
  - animateResize
```
public void animateResize(java.lang.Integer width,
                          java.lang.Integer height,
                          AnimationCallback callback)
```
    See Also:
    
    animateResize(java.lang.Integer, java.lang.Integer)
  - animateResize
```
public void animateResize(java.lang.Integer width,
                          java.lang.Integer height,
                          AnimationCallback callback,
                          java.lang.Integer duration)
```
    See Also:
    
    animateResize(java.lang.Integer, java.lang.Integer)
  - animateResize
```
public void animateResize(java.lang.Integer width,
                          java.lang.Integer height,
                          AnimationCallback callback,
                          java.lang.Integer duration,
                          AnimationAcceleration acceleration)
```
    Animate a resize of this canvas from its current size to the specified size
    
    Parameters:
    
    width - new width (or null for unchanged)
    
    height - new height (or null for unchanged)
    
    callback - When the resize completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation
    
    duration - Duration in ms of the animated resize
    
    acceleration - Optional acceleration effect to apply to the resize
    
    See Also:
    
    Resize Example
  - animateScroll
```
public void animateScroll(java.lang.Integer scrollLeft,
                          java.lang.Integer scrollTop)
```
    Animate a scroll from the current scroll position to the specified position.
    
    Parameters:
    
    scrollLeft - desired final left scroll position
    
    scrollTop - desired final top scroll position
  - animateScroll
```
public void animateScroll(java.lang.Integer scrollLeft,
                          java.lang.Integer scrollTop,
                          AnimationCallback callback)
```
    See Also:
    
    animateScroll(java.lang.Integer, java.lang.Integer)
  - animateScroll
```
public void animateScroll(java.lang.Integer scrollLeft,
                          java.lang.Integer scrollTop,
                          AnimationCallback callback,
                          java.lang.Integer duration)
```
    See Also:
    
    animateScroll(java.lang.Integer, java.lang.Integer)
  - animateScroll
```
public void animateScroll(java.lang.Integer scrollLeft,
                          java.lang.Integer scrollTop,
                          AnimationCallback callback,
                          java.lang.Integer duration,
                          AnimationAcceleration acceleration)
```
    Animate a scroll from the current scroll position to the specified position.
    
    Parameters:
    
    scrollLeft - desired final left scroll position
    
    scrollTop - desired final top scroll position
    
    callback - When the scroll completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation
    
    duration - Duration in ms of the animated scroll
    
    acceleration - Optional acceleration to bias the animation ratios
  - blur
```
public void blur()
```
    If this canvas has keyboard focus, blur it. After this method, the canvas will no longer appear focused and will stop receiving keyboard events.
    
    See Also:
    
    Focus overview and related methods
  - bringToFront
```
public void bringToFront()
```
    Puts this widget at the top of the stacking order, so it appears in front of all other widgets in the same parent.
    
    See Also:
    
    ZIndex overview and related methods, Layer Example
  - clear
```
public void clear()
```
    Remove all visual representation of a Canvas, including all child or member Canvases, or managed top-level components such as the ListGrid drop location indicator.
    This is more expensive than hide(), because in order to become visible again, the Canvas must be draw()n again. Generally, application code has no reason to call clear() unless it is attempting to do advanced memory management. If you want to temporarily hide a Canvas, use hide() and show(), and if you want to permanently destroy a Canvas, use destroy().
    You would only use clear() if you were managing a very large pool of components and you wanted to reclaim some of the memory used by components that had not been used in a while, while still being able to just draw() them to make them active and visible again.
    Note: a clear() will happen as part of moving a Canvas to a different parent. See addChild().
  - addClickHandler
```
public com.google.gwt.event.shared.HandlerRegistration addClickHandler(ClickHandler handler)
```
    Add a click handler.
    Executed when the left mouse is clicked (pressed and then released) on this widget. No default implementation.
    
    Specified by:
    
    addClickHandler in interface HasClickHandlers
    
    Parameters:
    
    handler - the click handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - clickMaskUp
```
public java.lang.Boolean clickMaskUp()
```
    Determines whether a clickmask is showing
    
    Returns:
    
    whether or not a clickmask is showing
    
    See Also:
    
    showClickMask(com.smartgwt.client.core.Function, com.smartgwt.client.types.ClickMaskMode, com.smartgwt.client.widgets.Canvas[])
  - clickMaskUp
```
public java.lang.Boolean clickMaskUp(java.lang.String ID)
```
    Determines whether a clickmask is showing
    
    Parameters:
    
    ID - optional ID of specific clickMask to check. If not passed, checks for the click mask associated with this widget only.
    
    Returns:
    
    whether or not a clickmask is showing
    
    See Also:
    
    showClickMask(com.smartgwt.client.core.Function, com.smartgwt.client.types.ClickMaskMode, com.smartgwt.client.widgets.Canvas[])
  - contains
```
public java.lang.Boolean contains(Canvas canvas)
```
    Returns true if element is a descendant of this widget (i.e., exists below this widget in the containment hierarchy); and false otherwise.
    
    Parameters:
    
    canvas - the canvas to be tested
    
    Returns:
    
    true if specified element is a descendant of this canvas; false otherwise
    
    See Also:
    
    Containment overview and related methods
  - contains
```
public java.lang.Boolean contains(Canvas canvas,
                                  java.lang.Boolean testSelf)
```
    Returns true if element is a descendant of this widget (i.e., exists below this widget in the containment hierarchy); and false otherwise.
    
    Parameters:
    
    canvas - the canvas to be tested
    
    testSelf - If passed this method will return true if the canvas parameter is a pointer to this widget.
    
    Returns:
    
    true if specified element is a descendant of this canvas; false otherwise
    
    See Also:
    
    Containment overview and related methods
  - containsEvent
```
public java.lang.Boolean containsEvent()
```
    Return true if the last event's mouse coordinates are within the bounds of this component. NOTE: Z-ordering is not considered for the purposes of this test. If the coordinate you're testing is occluded by other component, but the X,Y coordinates are still within the bounds of that component, this method will return true.
    
    Returns:
    
    true if the event occurred within the bounds of this component
    
    See Also:
    
    Positioning overview and related methods
  - containsFocus
```
public java.lang.Boolean containsFocus()
```
    Returns true if the keyboard focus is in this Canvas or any child of this Canvas.
    
    Returns:
    
    whether this Canvas contains the keyboard focus
    
    See Also:
    
    Focus overview and related methods
  - containsPoint
```
public java.lang.Boolean containsPoint(int x,
                                       int y)
```
    Return whether or not this object contains the specified global (x,y) coordinates.
    Will return false if any parent canvas does not contain the specified point, (EG: you're hovering over an element's absolute location, but it is scrolled out of view in a parent element)
    
    Parameters:
    
    x - GLOBAL x-coordinate
    
    y - GLOBAL y-coordinate
    
    Returns:
    
    true if this object contains the specified point; false otherwise
    
    See Also:
    
    Positioning overview and related methods
  - containsPoint
```
public java.lang.Boolean containsPoint(int x,
                                       int y,
                                       java.lang.Boolean withinViewport)
```
    Return whether or not this object contains the specified global (x,y) coordinates.
    Will return false if any parent canvas does not contain the specified point, (EG: you're hovering over an element's absolute location, but it is scrolled out of view in a parent element)
    
    Parameters:
    
    x - GLOBAL x-coordinate
    
    y - GLOBAL y-coordinate
    
    withinViewport - point lies specifically within our viewport (drawn area excluding margins and scrollbars if present)
    
    Returns:
    
    true if this object contains the specified point; false otherwise
    
    See Also:
    
    Positioning overview and related methods
  - deparent
```
public void deparent()
```
    Remove this canvas from its parent if it has one.
    
    See Also:
    
    Containment overview and related methods
  - depeer
```
public void depeer()
```
    Make this Canvas no longer a peer of its master
    
    See Also:
    
    Containment overview and related methods
  - disable
```
public void disable()
```
    Disables this widget and any children and peers of this widget.
    
    See Also:
    
    Enable overview and related methods
  - addDoubleClickHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDoubleClickHandler(DoubleClickHandler handler)
```
    Add a doubleClick handler.
    Executed when the left mouse button is clicked twice in rapid succession (within Canvas.doubleClickDelay by default) in this object.
    
    Specified by:
    
    addDoubleClickHandler in interface HasDoubleClickHandlers
    
    Parameters:
    
    handler - the doubleClick handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDragMoveHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDragMoveHandler(DragMoveHandler handler)
```
    Add a dragMove handler.
    Executed every time the mouse moves while dragging this canvas.
    
    Specified by:
    
    addDragMoveHandler in interface HasDragMoveHandlers
    
    Parameters:
    
    handler - the dragMove handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDragRepositionMoveHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDragRepositionMoveHandler(DragRepositionMoveHandler handler)
```
    Add a dragRepositionMove handler.
    Executed every time the mouse moves while drag-repositioning. If this method does not Call DragRepositionMoveEvent.cancel() from within DragRepositionMoveHandler.onDragRepositionMove(com.smartgwt.client.widgets.events.DragRepositionMoveEvent), the Canvas.dragTarget (or outline if Canvas.dragAppearance is set to "outline") will automatically be moved as appropriate whenever the mouse moves.
    
    Specified by:
    
    addDragRepositionMoveHandler in interface HasDragRepositionMoveHandlers
    
    Parameters:
    
    handler - the dragRepositionMove handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDragRepositionStartHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDragRepositionStartHandler(DragRepositionStartHandler handler)
```
    Add a dragRepositionStart handler.
    Executed when dragging first starts. No default implementation. Create this handler to set things up for the drag reposition.
    
    Specified by:
    
    addDragRepositionStartHandler in interface HasDragRepositionStartHandlers
    
    Parameters:
    
    handler - the dragRepositionStart handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDragRepositionStopHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDragRepositionStopHandler(DragRepositionStopHandler handler)
```
    Add a dragRepositionStop handler.
    Executed when the mouse button is released at the end of the drag. Your widget can use this opportunity to fire custom code based upon where the mouse button was released, etc.
    Returning true from this handler will cause the Canvas.dragTarget (or outline if Canvas.dragAppearance is set to "outline") to be left in its current location. Returning false from this handler will cause it to snap back to its original location.
    
    Specified by:
    
    addDragRepositionStopHandler in interface HasDragRepositionStopHandlers
    
    Parameters:
    
    handler - the dragRepositionStop handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDragResizeMoveHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDragResizeMoveHandler(DragResizeMoveHandler handler)
```
    Add a dragResizeMove handler.
    Executed every time the mouse moves while drag-resizing. If this method does not Call DragResizeMoveEvent.cancel() from within DragResizeMoveHandler.onDragResizeMove(com.smartgwt.client.widgets.events.DragResizeMoveEvent), the Canvas.dragTarget (or outline if Canvas.dragAppearance is set to "outline") will automatically be moved as appropriate whenever the mouse moves.
    
    Specified by:
    
    addDragResizeMoveHandler in interface HasDragResizeMoveHandlers
    
    Parameters:
    
    handler - the dragResizeMove handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDragResizeStartHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDragResizeStartHandler(DragResizeStartHandler handler)
```
    Add a dragResizeStart handler.
    Executed when resize dragging first starts. No default implementation. Create this handler to set things up for the drag resize.
    
    Specified by:
    
    addDragResizeStartHandler in interface HasDragResizeStartHandlers
    
    Parameters:
    
    handler - the dragResizeStart handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDragResizeStopHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDragResizeStopHandler(DragResizeStopHandler handler)
```
    Add a dragResizeStop handler.
    Executed when the mouse button is released at the end of the drag resize. Your widget can use this opportunity to fire custom code based upon where the mouse button was released, etc.
    Returning true from this handler will cause the Canvas.dragTarget (or outline if Canvas.dragAppearance is set to "outline") to be left at its current size. Returning false from this handler will cause it to snap back to its original location size
    
    Specified by:
    
    addDragResizeStopHandler in interface HasDragResizeStopHandlers
    
    Parameters:
    
    handler - the dragResizeStop handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDragStartHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDragStartHandler(DragStartHandler handler)
```
    Add a dragStart handler.
    Executed when dragging first starts. Your widget can use this opportunity to set things up for the drag, such as setting the drag tracker. Returning false from this event handler will cancel the drag action entirely.
    A drag action is considered to be begin when the mouse has moved Canvas.dragStartDistance with the left mouse down.
    
    Specified by:
    
    addDragStartHandler in interface HasDragStartHandlers
    
    Parameters:
    
    handler - the dragStart handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDragStopHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDragStopHandler(DragStopHandler handler)
```
    Add a dragStop handler.
    Executed when the mouse button is released at the end of the drag. Your widget can use this opportunity to fire code based on the last location of the drag or reset any visual state that was sent.
    
    Specified by:
    
    addDragStopHandler in interface HasDragStopHandlers
    
    Parameters:
    
    handler - the dragStop handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDropMoveHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDropMoveHandler(DropMoveHandler handler)
```
    Add a dropMove handler.
    Executed whenever the compatible dragged object is moved over this drop target. You can use this to show a custom visual indication of where the drop would occur within the widget, or to show the no-drop cursor to indicate that this is not a valid drop target, typically if Canvas.willAcceptDrop() returns false.
    For details on showing a 'no drop' cursor when the user drags over all invalid drop targets, see showNoDropIndicator.
    
    Specified by:
    
    addDropMoveHandler in interface HasDropMoveHandlers
    
    Parameters:
    
    handler - the dropMove handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDropOutHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDropOutHandler(DropOutHandler handler)
```
    Add a dropOut handler.
    Executed when the dragged object is no longer over this drop target, including when the drag interaction is ending with a drop on this drop target. If you have set a visual indication in dropOver or dropMove, you should reset it to its normal state in dropOut.
    
    Specified by:
    
    addDropOutHandler in interface HasDropOutHandlers
    
    Parameters:
    
    handler - the dropOut handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addDropOverHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDropOverHandler(DropOverHandler handler)
```
    Add a dropOver handler.
    Executed when the compatible dragged object is first moved over this drop target. Your implementation can use this to show a custom visual indication that the object can be dropped here.
    
    Specified by:
    
    addDropOverHandler in interface HasDropOverHandlers
    
    Parameters:
    
    handler - the dropOver handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - enable
```
public void enable()
```
    Enables this widget and any children / peers of this widget.
    
    See Also:
    
    Enable overview and related methods
  - encloses
```
public java.lang.Boolean encloses(Canvas other)
```
    Returns true if the rectangle of this widget encloses the rectangle of the specified widget.
    
    Parameters:
    
    other - other canvas to test for enclosure
    
    Returns:
    
    true if this canvas encloses other; false otherwise
    
    See Also:
    
    Positioning overview and related methods
  - focus
```
public void focus()
```
    If this canvas can accept focus, give it keyboard focus. After this method, the canvas will appear focused and will receive keyboard events.
    
    See Also:
    
    Focus overview and related methods
  - addFocusChangedHandler
```
public com.google.gwt.event.shared.HandlerRegistration addFocusChangedHandler(FocusChangedHandler handler)
```
    Add a focusChanged handler.
    Notification function fired when this widget receives or loses keyboard focus.
    
    Specified by:
    
    addFocusChangedHandler in interface HasFocusChangedHandlers
    
    Parameters:
    
    handler - the focusChanged handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - focusInNextTabElement
```
public void focusInNextTabElement()
```
    Shifts focus to the next focusable element after this one. This is the programmatic equivalent of the user pressing the Tab key. A "focusable element" is a Canvas or FormItem that is focusable, and is not disabled or masked. Note that the movement of focus to a FormItem is managed by the containing DynamicForm; calling this method on a DynamicForm will move the focus to the next focusable FormItem in the form if there is one, and onto the next focusable Canvas if not.
    NOTE: This method only considers Smart GWT elements. Native elements that you create directly - for example, with HTMLFlow.setContents() or by creating a custom widget with getInnerHTML() that has focusable elements that are not child Canvases - will not be noticed by this method.
    
    See Also:
    
    getTabIndex(), focusInPreviousTabElement(), Focus overview and related methods
  - focusInPreviousTabElement
```
public void focusInPreviousTabElement()
```
    Shifts focus to the previous focusable element before this one. This is the programmatic equivalent of the user pressing Shift-Tab. A "focusable element" is a Canvas or FormItem that is focusable, and is not disabled or masked. Note that the movement of focus to a FormItem is managed by the containing DynamicForm; calling this method on a DynamicForm will move the focus to the previous focusable FormItem in the form if there is one, and onto the previous focusable Canvas if not.
    
    NOTE: This method only considers Smart GWT elements. Native elements that you create directly - for example, with HTMLFlow.setContents() or by creating a custom widget with getInnerHTML() that has focusable elements that are not child Canvases - will not be noticed by this method.
    
    See Also:
    
    getTabIndex(), focusInNextTabElement(), Focus overview and related methods
  - getBottom
```
public int getBottom()
```
    Return the bottom coordinate of this object as rendered, relative to its enclosing context, in pixels.
    
    Returns:
    
    bottom coordinate
    
    See Also:
    
    Positioning overview and related methods
  - getContentElement
```
public com.google.gwt.user.client.Element getContentElement()
```
    Returns the DOM element for this Canvas which contains the contents, or for parent components, the DOM elements for any drawn children. This method is provided for the very rare cases where a programmer needs to examine the DOM hierarchy created by a drawn Smart GWT component.
    Direct manipulation of the DOM elements created by Smart GWT components is not supported. Smart GWT components should be rendered or cleared using standard methods such as draw(), clear(). If direct integration with existing DOM structures is required, this should be achieved via the htmlElement attribute, rather than by attempting to move the component's outer element via native browser APIs.
    The content of Smart GWT components' DOM elements should also not be directly manipulated using native browser APIs - standard methods such as setContents(), addChild(), removeChild(), markForRedraw() and redraw() should be used instead.
    In some cases, the element returned may match the element returned by getOuterElement(), but this will not always be the case.
    If the widget is undrawn, this method will return null.
    
    Returns:
    
    The outer DOM element for a drawn Canvas.
  - getFullDataPath
```
public java.lang.String getFullDataPath()
```
    Returns a fully qualified DataPath for this canvas. This is calculated by combining the canvas' specified DataPath with the dataPath of any parent canvases up to whichever canvas has a specified valuesManager specified to actually manage values from this component.
    
    Returns:
    
    fully qualified dataPath for this component
  - getHoverHTML
```
public java.lang.String getHoverHTML()
```
    If this.showHover is true, when the user holds the mouse over this Canvas for long enough to trigger a hover event, a hover canvas is shown by default. This method returns the contents of that hover canvas. Default implementation returns this.prompt - override for custom hover HTML. Note that returning null or an empty string will suppress the hover canvas altogether.
    
    Returns:
    
    the string to show in the hover
    
    See Also:
    
    getShowHover()
  - getHSnapOrigin
```
public int getHSnapOrigin()
```
    Get an offset to be used when calculating snap positioning. Returns 0 by default.
    
    Returns:
    
    The offset to use when snapping
    
    See Also:
    
    getHSnapPosition(int), Positioning overview and related methods
  - getHSnapOrigin
```
public int getHSnapOrigin(Canvas snapChild)
```
    Get an offset to be used when calculating snap positioning. Returns 0 by default.
    
    Parameters:
    
    snapChild - the child that is being snapped
    
    Returns:
    
    The offset to use when snapping
    
    See Also:
    
    getHSnapPosition(int), Positioning overview and related methods
  - getHSnapPosition
```
public int getHSnapPosition(int coordinate)
```
    Override this method to provide a custom snap-to grid. Note that you do not need to do this if your grid is regular (ie, grid points are every x pixels); regular grids should be defined using snapHGap and snapVGap. You should only override this method if you want to provide support for a grid of irregularly-placed points
    
    Parameters:
    
    coordinate - x-coordinate of the drag event relative to the inside of this widget
    
    Returns:
    
    The horizontal coordinate to snap to
    
    See Also:
    
    Dragdrop overview and related methods
  - getHSnapPosition
```
public int getHSnapPosition(int coordinate,
                            java.lang.String direction)
```
    Override this method to provide a custom snap-to grid. Note that you do not need to do this if your grid is regular (ie, grid points are every x pixels); regular grids should be defined using snapHGap and snapVGap. You should only override this method if you want to provide support for a grid of irregularly-placed points
    
    Parameters:
    
    coordinate - x-coordinate of the drag event relative to the inside of this widget
    
    direction - "before" or "after" denoting whether the returned coordinate should match the left or right edge of the current square. If unset snapHDirection will be used by default
    
    Returns:
    
    The horizontal coordinate to snap to
    
    See Also:
    
    Dragdrop overview and related methods
  - getImage
```
public com.google.gwt.user.client.Element getImage(java.lang.String identifier)
```
    Retrieve a native image element by name.
    The image element must have been created from HTML generated by calling imgHTML() on this particular Canvas.
    
    Parameters:
    
    identifier - name of the image to get, as originally passed to imgHTML()
    
    Returns:
    
    DOM image element if found, else null
    
    See Also:
    
    Images overview and related methods
  - getInnerContentHeight
```
public int getInnerContentHeight()
```
    Returns the amount of space available for interior content (or relatively positioned child widget(s)) without introducing clipping, scrolling or overflow.
    This is the space within the viewport of the widget (not including padding, and excluding margins, borders or scrollbars) rendered at its specified size.
    
    Returns:
    
    inner height of the widget in pixels
    
    See Also:
    
    getInnerContentWidth(), getInnerHeight(), getInnerWidth(), Sizing overview and related methods
  - getInnerContentWidth
```
public int getInnerContentWidth()
```
    Returns the amount of space available for interior content (or relatively positioned child widget(s)) without introducing clipping, scrolling or overflow.
    This is the space within the viewport of the widget (not including padding, and excluding margins, borders or scrollbars) rendered at its specified size.
    
    Returns:
    
    inner height of the widget in pixels
    
    See Also:
    
    getInnerContentHeight(), getInnerHeight(), getInnerWidth(), Sizing overview and related methods
  - getInnerHeight
```
public int getInnerHeight()
```
    Returns the amount of space available for (an) absolutely positioned child widget(s) or absolutely positioned HTML content, without introducing clipping, scrolling or overflow.
    This is the space within the viewport of the widget (including padding, but excluding margins, borders or scrollbars) rendered at its specified size.
    
    Returns:
    
    inner height of the widget in pixels
    
    See Also:
    
    getInnerWidth(), getInnerContentHeight(), getInnerContentWidth(), Sizing overview and related methods
  - getInnerWidth
```
public int getInnerWidth()
```
    Returns the amount of space available for absolutely positioned child widget(s) or absolutely positioned HTML content, without introducing clipping, scrolling or overflow.
    This is the space within the viewport of the widget (including padding, but excluding margins, borders or scrollbars) rendered at its specified size.
    
    Returns:
    
    inner width of the widget in pixels
    
    See Also:
    
    getInnerHeight(), getInnerContentHeight(), getInnerContentWidth(), Sizing overview and related methods
  - getMasterCanvas
```
public Canvas getMasterCanvas()
```
    Returns this canvas's "master" (the canvas to which it was added as a peer), if any.
    
    Returns:
    
    the master canvas, null if none exists.
    
    See Also:
    
    Containment overview and related methods
  - getOffsetX
```
public int getOffsetX()
```
    Return the X-coordinate of the last event relative to the left edge of the content of this Canvas.
    
    NOTE: To get a coordinate relative to the viewport of this Canvas, subtract this.getScrollLeft()
    
    Returns:
    
    See Also:
    
    Positioning overview and related methods
  - getOffsetY
```
public int getOffsetY()
```
    Return the Y-coordinate of the last event, relative to the top edge of the content of this Canvas.
    
    NOTE: To get a coordinate relative to the viewport of this Canvas, subtract this.getScrollTop()
    
    Returns:
    
    See Also:
    
    Positioning overview and related methods
  - getOuterElement
```
public com.google.gwt.user.client.Element getOuterElement()
```
    Returns the outer DOM element of this Canvas. This method is provided for the very rare cases where a programmer needs to examine the DOM hierarchy created by a drawn Smart GWT component.
    Direct manipulation of the DOM elements created by Smart GWT components is not supported. Smart GWT components should be rendered or cleared using standard methods such as draw(), clear(). If direct integration with existing DOM structures is required, this should be achieved via the htmlElement attribute, rather than by attempting to move the component's outer element via native browser APIs.
    The content of Smart GWT components' DOM elements should also not be directly manipulated using native browser APIs - standard methods such as setContents(), addChild(), removeChild(), markForRedraw() and redraw() should be used instead.
    In some cases, the element returned may match the element returned by getContentElement(), but this will not always be the case.
    If the widget is undrawn, this method will return null.
    
    Returns:
    
    The outer DOM element for a drawn Canvas.
  - getPageBottom
```
public int getPageBottom()
```
    Return the page-relative bottom coordinate of this object, in pixels.
    
    Returns:
    
    GLOBAL bottom coordinate
    
    See Also:
    
    Positioning overview and related methods
  - getPageLeft
```
public int getPageLeft()
```
    Returns the page-relative left coordinate of the widget on the page, in pixels.
    
    Returns:
    
    global left coordinate
    
    See Also:
    
    Positioning overview and related methods
  - getPageRight
```
public int getPageRight()
```
    Return the page-relative right coordinate of this object, in pixels.
    
    Returns:
    
    GLOBAL right coordinate
    
    See Also:
    
    Positioning overview and related methods
  - getPageTop
```
public int getPageTop()
```
    Returns the page-relative top coordinate of the widget on the page, in pixels
    
    Returns:
    
    GLOBAL top coordinate
    
    See Also:
    
    Positioning overview and related methods
  - getPanelContainer
```
public Canvas getPanelContainer()
```
    Returns this Canvas's "panel container". A panel container is a widget that manages a collection of panels, like a TabSet or SectionStack. If this Canvas is not a child of such a panel container, this method returns null.
    
    Returns:
    
    the Canvas's panel container, or null if the Canvas is not a chlld of a panel container
  - getRight
```
public int getRight()
```
    Return the right coordinate of this object as rendered, relative to its enclosing context, in pixels.
    
    Returns:
    
    right coordinate
    
    See Also:
    
    Positioning overview and related methods
  - getScrollBottom
```
public int getScrollBottom()
```
    Returns the scrollTop required to scroll vertically to the end of this widget's content.
    
    Returns:
    
    scroll bottom coordinate
    
    See Also:
    
    Scrolling overview and related methods
  - getScrollHeight
```
public int getScrollHeight()
```
    Returns the scrollable height of the widget's contents, including children, ignoring clipping.
    
    Returns:
    
    height of the element that can scroll
    
    See Also:
    
    Sizing overview and related methods
  - getScrollLeft
```
public int getScrollLeft()
```
    Get the number of pixels this Canvas is scrolled from its left edge.
    
    Returns:
    
    scrollLeft
    
    See Also:
    
    Positioning overview and related methods
  - getScrollRight
```
public int getScrollRight()
```
    Returns the scrollLeft required to scroll horizontally to the end of this widget's content.
    
    Returns:
    
    scroll bottom coordinate
    
    See Also:
    
    Scrolling overview and related methods
  - getScrollTop
```
public int getScrollTop()
```
    Get the number of pixels this Canvas is scrolled from its top edge.
    
    Returns:
    
    scrollTop
    
    See Also:
    
    Positioning overview and related methods
  - getScrollWidth
```
public int getScrollWidth()
```
    Returns the scrollable width of the widget's contents, including children, ignoring clipping.
    
    Returns:
    
    the scrollable width of the widget's contents
    
    See Also:
    
    Sizing overview and related methods
  - getViewportHeight
```
public int getViewportHeight()
```
    Returns the height of the viewport onto the scrollable content.
    
    Returns:
    
    height of the viewport, in pixels
    
    See Also:
    
    Sizing overview and related methods
  - getViewportWidth
```
public int getViewportWidth()
```
    Returns the width of the viewport onto the scrollable content.
    
    Returns:
    
    width of the viewport, in pixels
    
    See Also:
    
    Sizing overview and related methods
  - getVisibleHeight
```
public int getVisibleHeight()
```
    Return the visible height of the Canvas.
    
    Returns:
    
    visible height in pixels
    
    See Also:
    
    Sizing overview and related methods
  - getVisibleWidth
```
public int getVisibleWidth()
```
    Return the visible width of the Canvas.
    
    Returns:
    
    visible width in pixels
    
    See Also:
    
    Sizing overview and related methods
  - getVSnapOrigin
```
public int getVSnapOrigin()
```
    Get an offset to be used when calculating snap positioning. Returns 0 by default.
    
    Returns:
    
    The offset to use when snapping
    
    See Also:
    
    getVSnapPosition(int), Positioning overview and related methods
  - getVSnapOrigin
```
public int getVSnapOrigin(Canvas snapChild)
```
    Get an offset to be used when calculating snap positioning. Returns 0 by default.
    
    Parameters:
    
    snapChild - the child that is being snapped
    
    Returns:
    
    The offset to use when snapping
    
    See Also:
    
    getVSnapPosition(int), Positioning overview and related methods
  - getVSnapPosition
```
public int getVSnapPosition(int coordinate)
```
    Override this method to provide a custom snap-to grid. Note that you do not need to do this if your grid is regular (ie, grid points are every x pixels) - regular grids should be defined using snapHGap and snapVGap. You should only override this method if you want to provide support for a grid of irregularly-placed points
    
    Parameters:
    
    coordinate - y-coordinate of the drag event relative to the inside of this widget
    
    Returns:
    
    The vertical coordinate to snap to
    
    See Also:
    
    Dragdrop overview and related methods
  - getVSnapPosition
```
public int getVSnapPosition(int coordinate,
                            java.lang.String direction)
```
    Override this method to provide a custom snap-to grid. Note that you do not need to do this if your grid is regular (ie, grid points are every x pixels) - regular grids should be defined using snapHGap and snapVGap. You should only override this method if you want to provide support for a grid of irregularly-placed points
    
    Parameters:
    
    coordinate - y-coordinate of the drag event relative to the inside of this widget
    
    direction - "before" or "after" denoting whether the returned coordinate should match the top or bottom edge of the current square. If unset snapHDirection will be used by default
    
    Returns:
    
    The vertical coordinate to snap to
    
    See Also:
    
    Dragdrop overview and related methods
  - getZIndex
```
public int getZIndex(boolean resolveToNumber)
```
    Get the z-Index of this canvas.
    
    Parameters:
    
    resolveToNumber - If passed true, for undrawn widgets, resolve "auto" to the next available zIndex.
    
    Returns:
    
    See Also:
    
    ZIndex overview and related methods
  - handleHover
```
public void handleHover()
```
    Handler fired on a delay when the user hovers the mouse over this hover-target. Default implementation will fire this.hover() (if defined), and handle showing the hover canvas if this.showHover is true.
    
    See Also:
    
    getCanHover(), getShowHover(), HoverEvent
  - hide
```
public void hide()
```
    Sets the widget's CSS visibility attribute to "hidden".
    
    See Also:
    
    Visibility overview and related methods, Show & Hide Example
  - hideClickMask
```
public void hideClickMask()
```
    Hides the click mask associated with this canvas.
    
    See Also:
    
    showClickMask(com.smartgwt.client.core.Function, com.smartgwt.client.types.ClickMaskMode, com.smartgwt.client.widgets.Canvas[])
  - hideClickMask
```
public void hideClickMask(java.lang.String ID)
```
    Hides the click mask associated with this canvas.
    
    Parameters:
    
    ID - optional ID of specific clickMask to hide. If not passed, defaults to hiding the click mask associated with this widget only.
    
    See Also:
    
    showClickMask(com.smartgwt.client.core.Function, com.smartgwt.client.types.ClickMaskMode, com.smartgwt.client.widgets.Canvas[])
  - hideComponentMask
```
public void hideComponentMask()
```
    Hide the component level clickMask for this widget
  - hideComponentMask
```
public void hideComponentMask(boolean suppressFocusReset)
```
    Hide the component level clickMask for this widget
    
    Parameters:
    
    suppressFocusReset - By default when the component-level mask is hidden it will attempt to reset focus to whatever had focus before the mask was shown. Pass this parameter to suppress this behavior.
  - hideContextMenu
```
public void hideContextMenu()
```
    The default implementation of this method hides the contextMenu currently being shown for this component (which occurs when the mouse button that toggles the context menu is released). Override if you want some other behavior.
    
    See Also:
    
    ShowContextMenuEvent, Menu.hideContextMenu(), getOffsetX(), getOffsetY()
  - addHoverHandler
```
public com.google.gwt.event.shared.HandlerRegistration addHoverHandler(HoverHandler handler)
```
    Add a hover handler.
    If canHover is true for this widget, the hover string method will be fired when the user hovers over this canvas. If this method returns false, it will suppress the default behavior of showing a hover canvas if this.showHover is true.
    
    Specified by:
    
    addHoverHandler in interface HasHoverHandlers
    
    Parameters:
    
    handler - the hover handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addHoverHiddenHandler
```
public com.google.gwt.event.shared.HandlerRegistration addHoverHiddenHandler(HoverHiddenHandler handler)
```
    Add a hoverHidden handler.
    If showHover is true for this canvas, this notification method will be fired whenever the hover shown in response to handleHover() is hidden. This method may be observed or overridden.
    
    Specified by:
    
    addHoverHiddenHandler in interface HasHoverHiddenHandlers
    
    Parameters:
    
    handler - the hoverHidden handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - intersects
```
public java.lang.Boolean intersects(Canvas other)
```
    Returns true if the rectangles of this widget and the specified widget overlap.
    
    Parameters:
    
    other - other canvas to test for intersection
    
    Returns:
    
    true if this canvas intersects other; false otherwise
    
    See Also:
    
    Positioning overview and related methods
  - isDirty
```
public java.lang.Boolean isDirty()
```
    Returns whether a canvas is waiting to be redrawn. Will return true if markForRedraw() has been called, but this canvas has not yet been redrawn.
    
    Returns:
    
    true is this canvas needs to be redrawn; false otherwise
    
    See Also:
    
    Drawing overview and related methods
  - isDisabled
```
public java.lang.Boolean isDisabled()
```
    Is this canvas disabled? Note that the disabled state is inherited - this method will return true if this widget, or any of its ancestors are marked disabled.
    
    Returns:
    
    true if the widget or any widget above it in the containment hierarchy are disabled.
    
    See Also:
    
    Enable overview and related methods
  - isDrawn
```
public java.lang.Boolean isDrawn()
```
    Returns the boolean true, if the widget has been completely drawn, and false otherwise.
    
    Overrides:
    
    isDrawn in class BaseWidget
    
    Returns:
    
    true if drawn, false if not drawn
    
    See Also:
    
    Drawing overview and related methods
  - isFocused
```
public java.lang.Boolean isFocused()
```
    Returns true if this Canvas has the keyboard focus. Note that focus is assigned asynchronously in Internet Explorer, so in that browser only, this method can correctly return false when, intuitively, you would expect it to return true:
```
      someCanvas.focus();
      if (someCanvas.isFocused()) {
          // In most browsers we would get here, but not in Internet Explorer!
      }
```
    Returns:
    
    whether this Canvas has the keyboard focus
    
    See Also:
    
    containsFocus()
  - addKeyDownHandler
```
public com.google.gwt.event.shared.HandlerRegistration addKeyDownHandler(KeyDownHandler handler)
```
    Add a keyDown handler.
    Executed when a key is pressed on a focusable widget (Canvas.canFocus: true).
    Use EventHandler.getKey() to find out the String of the key that was pressed, and use EventHandler.shiftKeyDown() and related functions to determine whether modifier keys were down.
    
    Specified by:
    
    addKeyDownHandler in interface HasKeyDownHandlers
    
    Parameters:
    
    handler - the keyDown handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addKeyPressHandler
```
public com.google.gwt.event.shared.HandlerRegistration addKeyPressHandler(KeyPressHandler handler)
```
    Add a keyPress handler.
    Executed when a key is pressed and released on a focusable widget (Canvas.canFocus: true).
    Use EventHandler.getKey() to find out the String of the key that was pressed, and use EventHandler.shiftKeyDown() and related functions to determine whether modifier keys were down.
    
    Specified by:
    
    addKeyPressHandler in interface HasKeyPressHandlers
    
    Parameters:
    
    handler - the keyPress handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - keyUp
```
public java.lang.Boolean keyUp()
```
    Executed when a key is released on a focusable widget (canFocus: true).
    Use EventHandler.getKey() to find out the String of the key that was pressed, and use EventHandler.shiftKeyDown() and related functions to determine whether modifier keys were down.
    
    Returns:
    
    false to prevent this event from bubbling to this widget's parent, true or undefined to bubble.
    
    See Also:
    
    getCanFocus()
  - layoutChildren
```
public void layoutChildren(java.lang.String reason)
```
    layoutChildren() is where a Canvas should implement a sizing policy for it's Canvas children. Since layoutChildren calls parentResized() on its children, parentResized() is a good place for a child to implement a layout policy that can be used within any parent.
    Recommended practice for a Canvas that manages Canvas children is to create those children without any initial coordinate or size settings and do all sizing when layoutChildren() is called.
    layoutChildren() is always called at least once before children are drawn, and is called automatically whenever the viewport size changes (which includes both resizing and introduction/removal of scrolling). layoutChildren() can also be manually invoked in any other component-specific situation which changes the layout.
    NOTE: layoutChildren() may be called before draw() if a widget is resized before draw(), so be sure to avoid errors such as assuming that any children you automatically create have already been created.
    NOTE: auto-sizing: layoutChildren() is also called once during the initial draw(), before children are drawn, with a "reason" of "initial draw". During this invocation of layoutChildren() it is legal to directly draw children (call child.draw()), which is otherwise never allowed. This allows a Canvas to implement an auto-sizing layout policy by drawing some children before deciding on the sizes of remaining children, which is far more efficient than drawing all children and resizing some of them after they are drawn.
    
    Parameters:
    
    reason - reason why layoutChildren() is being called, passed when framework code invokes layoutChildren()
    
    See Also:
    
    Sizing overview and related methods
  - linkHTML
```
public java.lang.String linkHTML(java.lang.String href)
```
    Generates the HTML for a standard link (anchor) element.
    
    Parameters:
    
    href - URL for the link to point to
    
    Returns:
    
    HTML for the link
  - linkHTML
```
public java.lang.String linkHTML(java.lang.String href,
                                 java.lang.String text)
```
    See Also:
    
    linkHTML(java.lang.String)
  - linkHTML
```
public java.lang.String linkHTML(java.lang.String href,
                                 java.lang.String text,
                                 java.lang.String target)
```
    See Also:
    
    linkHTML(java.lang.String)
  - linkHTML
```
public java.lang.String linkHTML(java.lang.String href,
                                 java.lang.String text,
                                 java.lang.String target,
                                 java.lang.String ID)
```
    See Also:
    
    linkHTML(java.lang.String)
  - linkHTML
```
public java.lang.String linkHTML(java.lang.String href,
                                 java.lang.String text,
                                 java.lang.String target,
                                 java.lang.String ID,
                                 java.lang.Integer tabIndex)
```
    See Also:
    
    linkHTML(java.lang.String)
  - linkHTML
```
public java.lang.String linkHTML(java.lang.String href,
                                 java.lang.String text,
                                 java.lang.String target,
                                 java.lang.String ID,
                                 java.lang.Integer tabIndex,
                                 java.lang.String accessKey)
```
    Generates the HTML for a standard link (anchor) element.
    
    Parameters:
    
    href - URL for the link to point to
    
    text - HTML to display in the link element (defaults to the href). See HTMLString
    
    target - Target window for the link (defaults to opening in a new, unnamed window)
    
    ID - optional ID for the link element to be written out
    
    tabIndex - optional tabIndex for the link
    
    accessKey - optional accessKey for the link
    
    Returns:
    
    HTML for the link
  - markForDestroy
```
public void markForDestroy()
```
    destroy() this canvas on a timeout. This method should be used instead of calling canvas.destroy() directly unless there's a reason a the canvas needs to be destroyed synchronously. By using a timeout, this method ensures the destroy() will occur after the current thread of execution completes. This allows you to easily mark canvases for destruction while they're handling events, which must complete before the canvas can be destroyed.
    
    See Also:
    
    BaseWidget.destroy()
  - markForRedraw
```
public void markForRedraw()
```
    Marks the widget as "dirty" so that it will be added to a queue for redraw. Redraw of dirty components is handled by a looping timer and will after a very short delay (typically less than 100ms). In most cases it is recommended that developers use markForRedraw() instead of calling redraw() directly. Since this method queues the redraw, multiple calls to markForRedraw() within a single thread of execution will only lead to a single DOM manipulation which greatly improves application performance.
    
    See Also:
    
    Drawing overview and related methods
  - markForRedraw
```
public void markForRedraw(java.lang.String reason)
```
    Marks the widget as "dirty" so that it will be added to a queue for redraw. Redraw of dirty components is handled by a looping timer and will after a very short delay (typically less than 100ms). In most cases it is recommended that developers use markForRedraw() instead of calling redraw() directly. Since this method queues the redraw, multiple calls to markForRedraw() within a single thread of execution will only lead to a single DOM manipulation which greatly improves application performance.
    
    Parameters:
    
    reason - reason for performing the redraw
    
    See Also:
    
    Drawing overview and related methods
  - addMouseDownHandler
```
public com.google.gwt.event.shared.HandlerRegistration addMouseDownHandler(MouseDownHandler handler)
```
    Add a mouseDown handler.
    Executed when the left mouse button is pressed on this widget. No default implementation.
    
    Specified by:
    
    addMouseDownHandler in interface HasMouseDownHandlers
    
    Parameters:
    
    handler - the mouseDown handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addMouseMoveHandler
```
public com.google.gwt.event.shared.HandlerRegistration addMouseMoveHandler(MouseMoveHandler handler)
```
    Add a mouseMove handler.
    Executed when the mouse moves within this widget. No default implementation.
    
    Specified by:
    
    addMouseMoveHandler in interface HasMouseMoveHandlers
    
    Parameters:
    
    handler - the mouseMove handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addMouseOutHandler
```
public com.google.gwt.event.shared.HandlerRegistration addMouseOutHandler(MouseOutHandler handler)
```
    Add a mouseOut handler.
    Executed when the mouse leaves this widget. No default implementation.
    
    Specified by:
    
    addMouseOutHandler in interface HasMouseOutHandlers
    
    Parameters:
    
    handler - the mouseOut handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addMouseOverHandler
```
public com.google.gwt.event.shared.HandlerRegistration addMouseOverHandler(MouseOverHandler handler)
```
    Add a mouseOver handler.
    Executed when mouse enters this widget. No default implementation.
    
    Specified by:
    
    addMouseOverHandler in interface HasMouseOverHandlers
    
    Parameters:
    
    handler - the mouseOver handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addMouseStillDownHandler
```
public com.google.gwt.event.shared.HandlerRegistration addMouseStillDownHandler(MouseStillDownHandler handler)
```
    Add a mouseStillDown handler.
    Repeating notification method for the user holding the left mouse button down over this canvas.
    The mouseStillDown event is fired immediately when the mouse goes down. If the user holds the mouse down, after a pause of Canvas.mouseStillDownInitialDelay, it will begin to fire repeatedly every Canvas.mouseStillDownDelay milliseconds.
    This provides developers with a simple way to handle the common "repeated action" use case where a user can click a UI element to perform an action once, or click and hold to perform the action repeatedly.
    Examples of this include standard scrollbar button behavior and buttons to increase or decrease the value in a spinner type input element.
    This event is not native to JavaScript, but is provided by the ISC system.
    
    Specified by:
    
    addMouseStillDownHandler in interface HasMouseStillDownHandlers
    
    Parameters:
    
    handler - the mouseStillDown handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addMouseUpHandler
```
public com.google.gwt.event.shared.HandlerRegistration addMouseUpHandler(MouseUpHandler handler)
```
    Add a mouseUp handler.
    Executed when the left mouse is released on this widget. No default implementation.
    
    Specified by:
    
    addMouseUpHandler in interface HasMouseUpHandlers
    
    Parameters:
    
    handler - the mouseUp handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - addMouseWheelHandler
```
public com.google.gwt.event.shared.HandlerRegistration addMouseWheelHandler(MouseWheelHandler handler)
```
    Add a mouseWheel handler.
    Executed when the mouse wheel is actuated.
    
    Specified by:
    
    addMouseWheelHandler in interface HasMouseWheelHandlers
    
    Parameters:
    
    handler - the mouseWheel handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - moveAbove
```
public void moveAbove(Canvas canvas)
```
    Puts this widget just above the specified widget in the stacking order, so it appears in front of the specified widget if both widgets have the same parent.
    
    Parameters:
    
    canvas - canvas to move above
    
    See Also:
    
    ZIndex overview and related methods, Layer Example
  - moveBelow
```
public void moveBelow(Canvas canvas)
```
    Puts this widget just below the specified widget in the stacking order, so it appears behind the specified widget if both widgets have the same parent.
    
    Parameters:
    
    canvas - canvas to move below
    
    See Also:
    
    ZIndex overview and related methods, Layer Example
  - moveBy
```
public java.lang.Boolean moveBy(int deltaX,
                                int deltaY)
```
    Moves the widget deltaX pixels to the right and deltaY pixels down. Pass negative numbers to move up and/or to the left.
    
    Parameters:
    
    deltaX - amount to move horizontally (may be negative)
    
    deltaY - amount to move vertically (may be negative)
    
    Returns:
    
    whether the component actually moved
    
    See Also:
    
    Positioning overview and related methods, Move Example
  - addMovedHandler
```
public com.google.gwt.event.shared.HandlerRegistration addMovedHandler(MovedHandler handler)
```
    Add a moved handler.
    Notification method fired when this component is explicitly moved. Note that a component's position on the screen may also changed due to an ancestor being moved. The Canvas.parentMoved() method provides a notification entry point to catch that case as well.
    
    Specified by:
    
    addMovedHandler in interface HasMovedHandlers
    
    Parameters:
    
    handler - the moved handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - moveTo
```
public boolean moveTo(int left,
                      int top)
```
    Moves the widget so that its top-left corner is at the specified coordinates.
    This method will also accept a single parameter as an object array with left and top given as properties.
    
    Parameters:
    
    left - x-coordinate to move to in LOCAL coordinates or Object with left and top properties.
    
    top - y-coordinate to move to in LOCAL coordinates
    
    Returns:
    
    whether the component actually moved
    
    See Also:
    
    Positioning overview and related methods, Move Example
  - addDropHandler
```
public com.google.gwt.event.shared.HandlerRegistration addDropHandler(DropHandler handler)
```
    Add a drop handler.
    Notification method fired when the user drops another canvas onto this one. Returning false from this method will prevent any default drop behavior from occurring
    
    Specified by:
    
    addDropHandler in interface HasDropHandlers
    
    Parameters:
    
    handler - the drop handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - pageScrollDown
```
public void pageScrollDown()
```
    This method is the programmatic equivalent of the user pressing the "Page Down" key while this widget has the focus. It scrolls the widget's content downwards by the viewport height, if the content can be scrolled that far downwards
  - pageScrollUp
```
public void pageScrollUp()
```
    This method is the programmatic equivalent of the user pressing the "Page Up" key while this widget has the focus. It scrolls the widget's content upwards by the viewport height, if the content can be scrolled that far upwards
  - addParentMovedHandler
```
public com.google.gwt.event.shared.HandlerRegistration addParentMovedHandler(ParentMovedHandler handler)
```
    Add a parentMoved handler.
    Notification method fire when an ancestor of this component's position changes.
    
    Specified by:
    
    addParentMovedHandler in interface HasParentMovedHandlers
    
    Parameters:
    
    handler - the parentMoved handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - placeNear
```
public void placeNear()
```
    Move this canvas to the specified point, or as close to the specified point as possible without this widget extending beyond the edge of the browser viewport on any side.
    
    See Also:
    
    Positioning overview and related methods
  - placeNear
```
public void placeNear(int left)
```
    See Also:
    
    placeNear()
  - placeNear
```
public void placeNear(int left,
                      int top)
```
    Move this canvas to the specified point, or as close to the specified point as possible without this widget extending beyond the edge of the browser viewport on any side.
    
    Parameters:
    
    left - Left coordinate (defaults to mouse position)
    
    top - Top coordinate (defaults to mouse position)
    
    See Also:
    
    Positioning overview and related methods
  - redraw
```
public void redraw()
```
    Redraws the widget immediately with its current property values. Generally, if you want a Canvas to redraw, call markForRedraw() - this will cause the Canvas to be redrawn when current processing ends, so that a series of modifications made to a Canvas will cause it to redraw only once. Only call redraw() directly if you need immediate responsiveness, for example you are redrawing in response to continuous mouse motion.
    
    See Also:
    
    Drawing overview and related methods
  - redraw
```
public void redraw(java.lang.String reason)
```
    Redraws the widget immediately with its current property values. Generally, if you want a Canvas to redraw, call markForRedraw() - this will cause the Canvas to be redrawn when current processing ends, so that a series of modifications made to a Canvas will cause it to redraw only once. Only call redraw() directly if you need immediate responsiveness, for example you are redrawing in response to continuous mouse motion.
    
    Parameters:
    
    reason - reason for performing the redraw
    
    See Also:
    
    Drawing overview and related methods
  - removeChild
```
public void removeChild(Canvas child)
```
    Remove a child from this parent.
    
    Parameters:
    
    child - Child canvas to remove from this parent.
    
    See Also:
    
    Containment overview and related methods
  - removeChild
```
public void removeChild(Canvas child,
                        java.lang.String name)
```
    Remove a child from this parent.
    
    Parameters:
    
    child - Child canvas to remove from this parent.
    
    name - If the child canvas was assigned a name when added via addChild(), it should be passed in here to ensure no reference is kept to the child
    
    See Also:
    
    Containment overview and related methods
  - removePeer
```
public void removePeer(Canvas peer)
```
    Remove a peer from this Canvas
    
    Parameters:
    
    peer - Peer to be removed from this canvas
    
    See Also:
    
    Containment overview and related methods
  - removePeer
```
public void removePeer(Canvas peer,
                       java.lang.String name)
```
    Remove a peer from this Canvas
    
    Parameters:
    
    peer - Peer to be removed from this canvas
    
    name - If this peer was assigned a name when added via addPeer(), it should be passed in here to ensure no reference is kept to the peer
    
    See Also:
    
    Containment overview and related methods
  - removeSnapAlignCandidate
```
public void removeSnapAlignCandidate(Canvas candidate)
```
    Remove a candidate from snapAlignCandidates. If the passed widget was not actually a candidate, nothing happens and no warning is logged.
    
    Parameters:
    
    candidate -
  - resizeBy
```
public java.lang.Boolean resizeBy(int deltaX,
                                  int deltaY)
```
    Resizes the widget, adding deltaX to its width and deltaY to its height (moves the right and/or bottom sides of the widget).
    
    Parameters:
    
    deltaX - amount to resize horizontally (may be negative)
    
    deltaY - amount to resize vertically (may be negative)
    
    Returns:
    
    whether the component actually changed size
    
    See Also:
    
    Sizing overview and related methods, Resize Example
  - addResizedHandler
```
public com.google.gwt.event.shared.HandlerRegistration addResizedHandler(ResizedHandler handler)
```
    Add a resized handler.
    Observable method called whenever a Canvas changes size. Note that if this canvas is overflow:"visible", and is waiting for a queued redraw (see Canvas.isDirty()), the value for Canvas.getVisibleWidth() and Canvas.getVisibleHeight() will be unreliable until redraw() fires.
    
    Specified by:
    
    addResizedHandler in interface HasResizedHandlers
    
    Parameters:
    
    handler - the resized handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - resizeTo
```
public java.lang.Boolean resizeTo(int width,
                                  int height)
```
    Resizes the widget to the specified width and height (moves the right and/ or bottom sides of the widget). The width and height parameters can be expressed as a percentage of viewport size or as the number of pixels.
    
    Parameters:
    
    width - new width for canvas.
    
    height - new height for canvas
    
    Returns:
    
    whether the size actually changed
    
    See Also:
    
    Sizing overview and related methods, Resize Example
  - revealChild
```
public void revealChild(java.lang.String child)
```
    For "panel container" widgets like TabSet or SectionStack, this method reveals the child Canvas passed in by whatever means is applicable for the particular type of container. For example, when called on a TabSet, it selects the tab containing the passed-in child.
    For other types of Canvas, this method simply shows the passed-in child if it is not currently visible.
    If the passed-in widget is not a child of this Canvas, this method has no effect
    
    Parameters:
    
    child - the child Canvas to reveal, or its global ID
  - revealChild
```
public void revealChild(Canvas child)
```
    For "panel container" widgets like TabSet or SectionStack, this method reveals the child Canvas passed in by whatever means is applicable for the particular type of container. For example, when called on a TabSet, it selects the tab containing the passed-in child.
    For other types of Canvas, this method simply shows the passed-in child if it is not currently visible.
    If the passed-in widget is not a child of this Canvas, this method has no effect
    
    Parameters:
    
    child - the child Canvas to reveal, or its global ID
  - addRightMouseDownHandler
```
public com.google.gwt.event.shared.HandlerRegistration addRightMouseDownHandler(RightMouseDownHandler handler)
```
    Add a rightMouseDown handler.
    Executed when the right mouse button is pressed on this widget. No default implementation.
    
    Specified by:
    
    addRightMouseDownHandler in interface HasRightMouseDownHandlers
    
    Parameters:
    
    handler - the rightMouseDown handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - scrollBy
```
public void scrollBy(int dX,
                     int dY)
```
    Scroll this widget by some pixel increment in either (or both) direction(s).
    
    Parameters:
    
    dX - Number of pixels to scroll horizontally
    
    dY - Number of pixels to scroll vertically
    
    See Also:
    
    Scrolling overview and related methods
  - scrollByPercent
```
public void scrollByPercent(int dX,
                            int dY)
```
    Scroll this widget by some percentage of scroll size in either (or both) direction(s).
    
    Parameters:
    
    dX - Percentage to scroll horizontally. Will accept either a numeric percent value, or a string like "10%".
    
    dY - Percentage to scroll horizontally. Will accept either a numeric percent value, or a string like "10%".
    
    See Also:
    
    Scrolling overview and related methods
  - addScrolledHandler
```
public com.google.gwt.event.shared.HandlerRegistration addScrolledHandler(ScrolledHandler handler)
```
    Add a scrolled handler.
    Notification that this component has just scrolled. Use with observation.
    Fires for both CSS and "synthetic" scrollbars.
    
    Specified by:
    
    addScrolledHandler in interface HasScrolledHandlers
    
    Parameters:
    
    handler - the scrolled handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - scrollTo
```
public void scrollTo()
```
    Scrolls the content of the widget so that the origin (top-left corner) of the content is left pixels to the left and top pixels above the widget's top-left corner (but still clipped by the widget's dimensions).
    This is guaranteed to be called whenever this Canvas is scrolled, whether scrolling is initiated programmatically, by custom scrollbars, or a by a native scrollbar.
    
    See Also:
    
    Scrolling overview and related methods
  - scrollTo
```
public void scrollTo(java.lang.Integer left)
```
    See Also:
    
    scrollTo()
  - scrollTo
```
public void scrollTo(java.lang.Integer left,
                     java.lang.Integer top)
```
    Scrolls the content of the widget so that the origin (top-left corner) of the content is left pixels to the left and top pixels above the widget's top-left corner (but still clipped by the widget's dimensions).
    This is guaranteed to be called whenever this Canvas is scrolled, whether scrolling is initiated programmatically, by custom scrollbars, or a by a native scrollbar.
    
    Parameters:
    
    left - the left coordinate
    
    top - the top coordinate
    
    See Also:
    
    Scrolling overview and related methods
  - scrollToBottom
```
public void scrollToBottom()
```
    Vertically scrolls the content of the widget to the end of its content
    
    See Also:
    
    Scrolling overview and related methods
  - scrollToLeft
```
public void scrollToLeft()
```
    Horizontally scrolls the content of the widget to 0
    
    See Also:
    
    Scrolling overview and related methods
  - scrollToPercent
```
public void scrollToPercent(int left,
                            int top)
```
    Scroll this widget to some position specified as a percentage of scroll size in either (or both) direction(s).
    
    Parameters:
    
    left - Left Percentage position to scroll to Will accept either a numeric percent value, or a string like "10%".
    
    top - Top Percentage position to scroll to Will accept either a numeric percent value, or a string like "10%".
    
    See Also:
    
    Scrolling overview and related methods
  - scrollToRight
```
public void scrollToRight()
```
    Horizontally scrolls the content of the widget to the end of its content
    
    See Also:
    
    Scrolling overview and related methods
  - scrollToTop
```
public void scrollToTop()
```
    Vertically scrolls the content of the widget to 0
    
    See Also:
    
    Scrolling overview and related methods
  - sendToBack
```
public void sendToBack()
```
    Puts this widget at the bottom of the stacking order, so it appears behind all other widgets in the same parent.
    
    See Also:
    
    ZIndex overview and related methods, Layer Example
  - setBottom
```
public void setBottom(int bottom)
```
    Resizes the widget vertically to position its bottom edge at the specified coordinate.
    NOTE: if you're setting multiple coordinates, use setRect(), moveTo() or resizeTo() instead
    
    Parameters:
    
    bottom - new bottom coordinate
    
    See Also:
    
    Sizing overview and related methods
  - setEditMode
```
public void setEditMode(boolean editingOn)
```
    Enable or disable edit mode for this component.
    To disable edit mode just pass editingOn as false. The other parameters are not needed.
    To enable edit mode on this component all three parameters are required. The editNode is the edit node for this component as it exists within the editContext.
    An alternative method, EditContext.enableEditing(), can be used when only an editContext and editNode are available.
    Placing a component into editMode causes the component's editProxy to be created.
    
    Parameters:
    
    editingOn - true to enable editMode; false to disable
    
    See Also:
    
    EditTree, EditContext
  - setEditMode
```
public void setEditMode(boolean editingOn,
                        EditContext editContext)
```
    See Also:
    
    setEditMode(boolean)
  - setEditMode
```
public void setEditMode(boolean editingOn,
                        EditContext editContext,
                        EditNode editNode)
```
    Enable or disable edit mode for this component.
    To disable edit mode just pass editingOn as false. The other parameters are not needed.
    To enable edit mode on this component all three parameters are required. The editNode is the edit node for this component as it exists within the editContext.
    An alternative method, EditContext.enableEditing(), can be used when only an editContext and editNode are available.
    Placing a component into editMode causes the component's editProxy to be created.
    
    Parameters:
    
    editingOn - true to enable editMode; false to disable
    
    editContext - the EditContext
    
    editNode - the EditNode
    
    See Also:
    
    EditTree, EditContext
  - setImage
```
public void setImage(java.lang.String identifier,
                     java.lang.String URL)
```
    Set the URL of an image element by name.
    The image element must have been created from HTML generated by calling canvas.imgHTML() on this particular Canvas.
    
    Parameters:
    
    identifier - name of the image to change, as originally passed to imgHTML
    
    URL - URL for the image. See SCImgURL
    
    See Also:
    
    Images overview and related methods
  - setImage
```
public void setImage(java.lang.String identifier,
                     java.lang.String URL,
                     java.lang.String imgDir)
```
    Set the URL of an image element by name.
    The image element must have been created from HTML generated by calling canvas.imgHTML() on this particular Canvas.
    
    Parameters:
    
    identifier - name of the image to change, as originally passed to imgHTML
    
    URL - URL for the image. See SCImgURL
    
    imgDir - optional image directory, overrides the default for this Canvas
    
    See Also:
    
    Images overview and related methods
  - setPageLeft
```
public void setPageLeft(int left)
```
    Set the page-relative left coordinate of this widget.
    
    Parameters:
    
    left - new left coordinate in pixels
    
    See Also:
    
    Positioning overview and related methods
  - setPageTop
```
public void setPageTop(int top)
```
    Set the page-relative top coordinate of this widget.
    
    Parameters:
    
    top - new top coordinate in pixels
    
    See Also:
    
    Positioning overview and related methods
  - setRight
```
public void setRight(int right)
```
    Resizes the widget horizontally to position its right side at the specified coordinate.
    NOTE: if you're setting multiple coordinates, use setRect(), moveTo() or resizeTo() instead
    
    Parameters:
    
    right - new right coordinate
    
    See Also:
    
    Sizing overview and related methods
  - shouldDragScroll
```
public void shouldDragScroll()
```
    If this widget is showing scrollbars, and a user drags close to the edge of the viewport, should we scroll the viewport in the appropriate direction? Returns this.canDragScroll if there are scrollbars, else false.
    
    See Also:
    
    Dragdrop overview and related methods
  - show
```
public void show()
```
    Sets this widget's visibility to "inherit", so that it becomes visible if all of its parents are visible or it has no parents.
    If the widget has not yet been drawn (and doesn't have a parent or master), this method calls the draw method as well.
    
    See Also:
    
    Visibility overview and related methods, Show & Hide Example
  - showComponentMask
```
public void showComponentMask()
```
    Temporariy block all user interaction with children of this widget, with the exception of those passed in in the unmaskedChildren parameter. Children will remain blocked until hideComponentMask() is called.
    This method will show the componentMask canvas to block mouse interaction with children, and temporarily remove masked children from the page's tab-order.
    This behavior differs from the standard click mask in that the modal mask shown by showClickMask() will cover the entire screen and typically only allow "unmasking" of top level components.
    Use hideComponentMask() to hide the component level mask.
  - showComponentMask
```
public void showComponentMask(Canvas... unmaskedChildren)
```
    Temporariy block all user interaction with children of this widget, with the exception of those passed in in the unmaskedChildren parameter. Children will remain blocked until hideComponentMask() is called.
    This method will show the componentMask canvas to block mouse interaction with children, and temporarily remove masked children from the page's tab-order.
    This behavior differs from the standard click mask in that the modal mask shown by showClickMask() will cover the entire screen and typically only allow "unmasking" of top level components.
    Use hideComponentMask() to hide the component level mask.
    
    Parameters:
    
    unmaskedChildren - Children passed into this parameter will continue to be interactive while other children are blocked. They will be moved above the componentMask in the page's z-order and remain accessible via keyboard navigation. Note that this array should contain direct children of this widget only.
  - addShowContextMenuHandler
```
public com.google.gwt.event.shared.HandlerRegistration addShowContextMenuHandler(ShowContextMenuHandler handler)
```
    Add a showContextMenu handler.
    Executed when the right mouse button is clicked. The default implementation of this method auto-creates a Menu from the Canvas.contextMenu property on this component and then calls Menu.showContextMenu() on it to show it.
    If you want to show a standard context menu, you can simply define your Menu and set it as the contextMenu property on your component - you do not need to override this method.
    If you want to do some other processing before showing a menu or do something else entirely, then you should override this method. Note that the return value from this method controls whether or not the native browser context menu is shown.
    
    Specified by:
    
    addShowContextMenuHandler in interface HasShowContextMenuHandlers
    
    Parameters:
    
    handler - the showContextMenu handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - showNextTo
```
public void showNextTo(Canvas otherWidget)
```
    Show this widget next to another widget on the page, positioned such that it will not extend beyond the browser viewport.
    Note that this method simply sets the coordinates of the widget and displays it (using a animateShow() by default). It will not change the parentElement of either component.
    An example use case might be showing a menu next to a menu-button.
    
    Parameters:
    
    otherWidget - Canvas to show next to
  - showNextTo
```
public void showNextTo(Canvas otherWidget,
                       java.lang.String side)
```
    See Also:
    
    showNextTo(com.smartgwt.client.widgets.Canvas)
  - showNextTo
```
public void showNextTo(Canvas otherWidget,
                       java.lang.String side,
                       boolean canOcclude)
```
    See Also:
    
    showNextTo(com.smartgwt.client.widgets.Canvas)
  - showNextTo
```
public void showNextTo(Canvas otherWidget,
                       java.lang.String side,
                       boolean canOcclude,
                       boolean skipAnimation)
```
    Show this widget next to another widget on the page, positioned such that it will not extend beyond the browser viewport.
    Note that this method simply sets the coordinates of the widget and displays it (using a animateShow() by default). It will not change the parentElement of either component.
    An example use case might be showing a menu next to a menu-button.
    
    Parameters:
    
    otherWidget - Canvas to show next to
    
    side - Which side of the other canvas should we put. Options are "top", "bottom", "left", "right". (Defaults to "right")
    
    canOcclude - This argument controls whether this canvas can be positioned on top of the other widget if there isn't room to put it next to the other widget extending out of the browser viewport
    If 'canOcclude' is true, simply shift this widget over the other widget, so that it ends up onscreen. If 'canOcclude' is false, avoid extending offscreen by positioning this widget on the other side of the other widget.
    
    skipAnimation - If false do not use an animation to show the component.
  - showRecursively
```
public void showRecursively()
```
    Recursively show the canvas and all it's parents so the canvas will be visible.
    If the widget has not yet been drawn, this method calls the draw method as well.
    
    See Also:
    
    Visibility overview and related methods
  - updateHover
```
public void updateHover()
```
    If this canvas is currently showing a hover (see handleHover()), this method can be called to update the contents of the hover. Has no effect if the hover canvas is not showing for this widget.
  - updateHover
```
public void updateHover(java.lang.String hoverHTML)
```
    If this canvas is currently showing a hover (see handleHover()), this method can be called to update the contents of the hover. Has no effect if the hover canvas is not showing for this widget.
    
    Parameters:
    
    hoverHTML - Option to specify new HTML for the hover. If not passed, the result of this.getHoverHTML() will be used instead. Note that if the hover HTML is empty the hover will be hidden.
  - addVisibilityChangedHandler
```
public com.google.gwt.event.shared.HandlerRegistration addVisibilityChangedHandler(VisibilityChangedHandler handler)
```
    Add a visibilityChanged handler.
    Notification fired when this canvas becomes visible or hidden to the user. Note - this method is fired when the Canvas.isVisible() state of this component changes. It may be fired in response an explicit call to Canvas.show() or Canvas.hide() or Canvas.setVisibility(), or in response to a parent component being shown or hidden when this widgets Canvas.visibility is set to "inherit".
    Note that a call to Canvas.show() or Canvas.hide() will not always fire this notification. If this widget has a hidden parent, show or hide would change this components Canvas.visibility property, and may update the CSS visibility attribute of the drawn handle in the DOM, but would not actually hide or reveal the component to the user and as such the notification would not fire.
    Note also that this notification will only be fired for components which have been drawn.
    
    Specified by:
    
    addVisibilityChangedHandler in interface HasVisibilityChangedHandlers
    
    Parameters:
    
    handler - the visibilityChanged handler
    
    Returns:
    
    HandlerRegistration used to remove this handler
  - getEventEdge
```
public static EdgeName getEventEdge()
```
    Check if an event is within an "edge" of this canvas.
    
    Returns:
    
    edge where the mouse is positioned, or null if not within a legal edge (including being in the center)
    
    See Also:
    
    getResizeFrom()
  - getEventEdge
```
public static EdgeName getEventEdge(EdgeName... edgeMask)
```
    Check if an event is within an "edge" of this canvas.
    
    Parameters:
    
    edgeMask - Array of legal edges. Default is all the edges that allow resizing (see resizeFrom)
    
    Returns:
    
    edge where the mouse is positioned, or null if not within a legal edge (including being in the center)
    
    See Also:
    
    getResizeFrom()
  - getSnapPosition
```
public static Point getSnapPosition(Canvas target,
                                    java.lang.String snapTo,
                                    Canvas snapper)
```
    Return the position for snapper to be placed in order to "snap to" an edge or corner of target, in the same sense as snapTo.
    Default for snapEdge is the opposite edge or corner from snapTo. For example, snapTo of "T" (top) means snapEdge will default to "B" (bottom), so the returned coordinates would place snapper centered along the top edge of target. A snapTo of "TL" (top left) means snapEdge will default to "BR" (bottom right), so the returned coordinates would place the bottom right of snapper at the top left corner of target.
    target can be passed as either a Canvas or 4-element Array giving the top, left, width and height of the target.
    
    Parameters:
    
    target - canvas to snap to
    
    snapTo - edge against which to snap
    
    snapper - canvas being snapped
    
    Returns:
    
    the position for snapper to be placed in order to "snap to" an edge or corner of target
  - getSnapPosition
```
public static Point getSnapPosition(Canvas target,
                                    java.lang.String snapTo,
                                    Canvas snapper,
                                    java.lang.String snapEdge)
```
    Return the position for snapper to be placed in order to "snap to" an edge or corner of target, in the same sense as snapTo.
    Default for snapEdge is the opposite edge or corner from snapTo. For example, snapTo of "T" (top) means snapEdge will default to "B" (bottom), so the returned coordinates would place snapper centered along the top edge of target. A snapTo of "TL" (top left) means snapEdge will default to "BR" (bottom right), so the returned coordinates would place the bottom right of snapper at the top left corner of target.
    target can be passed as either a Canvas or 4-element Array giving the top, left, width and height of the target.
    
    Parameters:
    
    target - canvas to snap to
    
    snapTo - edge against which to snap
    
    snapper - canvas being snapped
    
    snapEdge - optional edge to snapTo. Default is the opposite edge or corner from snapTo
    
    Returns:
    
    the position for snapper to be placed in order to "snap to" an edge or corner of target
  - setAllowExternalFilters
```
public static void setAllowExternalFilters(boolean allExternalFilters)
```
    Changes the system-wide allowExternalFilters setting.
    
    Parameters:
    
    allExternalFilters - new setting
  - setDefaultPageSpace
```
public static void setDefaultPageSpace(int newDefaultPageSpace)
```
    Changes the global defaultPageSpace.
    
    Parameters:
    
    newDefaultPageSpace - the new value for defaultPageSpace.
  - setNeverUseFilters
```
public static void setNeverUseFilters(boolean neverUseFilters)
```
    Changes the system-wide neverUseFilters setting.
    
    Parameters:
    
    neverUseFilters - new setting
  - setDefaultProperties
```
public static void setDefaultProperties(Canvas canvasProperties)
```
    Class level method to set the default properties of this class. If set, then all existing and subsequently created instances of this class will automatically have default properties corresponding to the properties set on the SmartGWT class instance passed to this function before its underlying SmartClient JS object was created. This is a powerful feature that eliminates the need for users to create a separate hierarchy of subclasses that only alter the default properties of this class. Can also be used for skinning / styling purposes.
    Note: This method is intended for setting default attributes only and will affect all instances of the underlying class (including those automatically generated in JavaScript). This method should not be used to apply standard EventHandlers or override methods for a class - use a custom subclass instead. Calling this method after instances have been created can result in undefined behavior, since it bypasses any setters and a class instance may have already examined a particular property and not be expecting any changes through this route.
    
    Parameters:
    
    canvasProperties - properties that should be used as new defaults when instances of this class are created
    
    See Also:
    
    SGWTProperties
  - getTestInstance
```
protected Canvas getTestInstance()
```
  - getById
```
public static Canvas getById(java.lang.String ID)
```
    Retrieve a Canvas by its global ID.
    
    Parameters:
    
    ID - global ID of the Canvas
    
    Returns:
    
    the Canvas, or null if not found
  - getByJSObject
```
public static Canvas getByJSObject(com.google.gwt.core.client.JavaScriptObject jsObj)
```
    Retrieve a Canvas from its JavaScriptObject.
    
    Parameters:
    
    jsObj - SmartClient object associated with Canvas
    
    Returns:
    
    the Canvas, or null if not found
  - setElement
```
protected void setElement(com.google.gwt.user.client.Element elem)
```
    Normal usage of SmartGWT is to call draw() on SmartGWT widgets, not to use use RootPanel.add(). Developers will not typically need to call getElement() or setElement() for SmartGWT canvas instances. If developers do need to access the DOM elements created by a drawn SmartGWT component, they should use getOuterElement() and getContentElement(). See the javadoc for those methods for more information. Note particularly that these elements should not be directly manipulated in the DOM - instead standard SmartGWT APIs such as draw(), clear(), setContents(), addChild(), redraw() should be used. See also setHtmlElement(Element) for how to embed a SmartGWT component into an existing DOM element.
    getElement() and setEleent() exist solely to support adding SmartGWT widgets to a core GWT layout manager. This usage has limitations and caveats - see this list of Frequently Asked Questions.
    The mechanism that getElement() uses to integrate with core GWT is the same as that described for com.smartgwt.client.widgets.Canvas#setHTMLElement(Element) and has the same caveats
    
    Overrides:
    
    setElement in class com.google.gwt.user.client.ui.UIObject
  - getElement
```
public com.google.gwt.user.client.Element getElement()
```
    Normal usage of SmartGWT is to call draw() on SmartGWT widgets, not to use use RootPanel.add(). Developers will not typically need to call getElement() or setElement() for SmartGWT canvas instances. If developers do need to access the DOM elements created by a drawn SmartGWT component, they should use getOuterElement() and getContentElement(). See the javadoc for those methods for more information. Note particularly that these elements should not be directly manipulated in the DOM - instead standard SmartGWT APIs such as draw(), clear(), setContents(), addChild(), redraw() should be used. See also setHtmlElement(Element) for how to embed a SmartGWT component into an existing DOM element.
    getElement() and setEleent() exist solely to support adding SmartGWT widgets to a core GWT layout manager. This usage has limitations and caveats - see this list of Frequently Asked Questions.
    The mechanism that getElement() uses to integrate with core GWT is the same as that described for com.smartgwt.client.widgets.Canvas#setHTMLElement(Element) and has the same caveats
    
    Overrides:
    
    getElement in class com.google.gwt.user.client.ui.UIObject
  - getElement
```
public com.google.gwt.user.client.Element getElement(boolean allowPreRender)
```
    Parameters:
    
    allowPreRender -
    
    Returns:
    
    See Also:
    
    UIObject.getElement()
  - asSGWTComponent
```
public static <T extends Canvas> T asSGWTComponent(com.google.gwt.core.client.JavaScriptObject jsObj)
```
    Returns the existing SGWT widget, or creates and returns one if none exist, associated with the supplied JavaScriptObject. If the supplied object is not a SmartClient Canvas, a warning will be logged and null returned; otherwise the widget will be returned as the appropriate subtype of SGWT Canvas.
    
    Parameters:
    
    jsObj - SmartClient Canvas whose wrapper is wanted
    
    Returns:
    
    wrapping SGWT Canvas, appropriately subtyped, or null
  - getByLocalId
```
public Canvas getByLocalId(java.lang.String ID)
```
    Retrieve a child of this Canvas by it's local ID.
    A "local ID" is name for a child widget which is unique only for this parent, and not globally unique as is required for ID. Widgets receive local IDs when loaded via com.smartgwt.client.client.rpc.RPCManager#loadScreen() or com.smartgwt.client.rpc.RPCManager#cacheScreens() and com.smartgwt.client.rpc.RPCManager#createScreen().
    
    Parameters:
    
    ID - global ID of the Canvas
    
    Returns:
    
    the Canvas, or null if not found
  - getClassName
```
public java.lang.String getClassName()
```
    Returns the javascript class name.
    
    Overrides:
    
    getClassName in class BaseWidget
    
    Returns:
  - setInitHandler
```
public void setInitHandler(CanvasInitHandler initHandler)
```
    Specify a notification method to fire when this Canvas is initialized in JavaScript. This allows developers to set up form item state dynamically when the item is created.
    
    Parameters:
    
    initHandler -
  - onInit
```
protected void onInit()
```
    Overrides:
    
    onInit in class BaseWidget
  - onDetach
```
protected void onDetach()
```
    Overrides:
    
    onDetach in class com.google.gwt.user.client.ui.Widget
  - onAttach
```
protected void onAttach()
```
    Overrides:
    
    onAttach in class com.google.gwt.user.client.ui.Widget
  - addStyleName
```
public void addStyleName(java.lang.String style)
```
    Multiple styles are currently not supported. This method essentially calls setStyleName(String)
    
    Overrides:
    
    addStyleName in class com.google.gwt.user.client.ui.UIObject
    
    Parameters:
    
    style - the style name
    
    See Also:
    
    setStyleName(String)
  - setVisible
```
public void setVisible(boolean visible)
```
    Specified by:
    
    setVisible in interface com.google.gwt.user.client.ui.HasVisibility
    
    Overrides:
    
    setVisible in class com.google.gwt.user.client.ui.UIObject
  - setHeight
```
public void setHeight(int height)
```
    See Also:
    
    setHeight(Integer)
  - setHeight100
```
public void setHeight100()
```
    Convenience method that sets the height to 100%.
  - getHeightAsString
```
public java.lang.String getHeightAsString()
```
  - setTitle
```
public void setTitle(java.lang.String title)
```
    Synonym for setPrompt(String)
    
    Overrides:
    
    setTitle in class BaseWidget
    
    Parameters:
    
    title - the title
  - getTitle
```
public java.lang.String getTitle()
```
    Synonym for getPrompt()
    
    Overrides:
    
    getTitle in class BaseWidget
    
    Returns:
    
    the title
  - setTooltip
```
public void setTooltip(java.lang.String tooltip)
```
    Synonym for setPrompt(String)
    
    Parameters:
    
    tooltip - the tooltip
  - getTooltip
```
public java.lang.String getTooltip()
```
    Synonym for getPrompt()
    
    Returns:
    
    the tooltip
  - setWidth
```
public void setWidth(int width)
```
    See Also:
    
    setWidth(Integer)
  - setWidth100
```
public void setWidth100()
```
    Convenience method that sets the width to 100%.
  - getWidthAsString
```
public java.lang.String getWidthAsString()
```
  - getLeftAsString
```
public java.lang.String getLeftAsString()
```
    Number of pixels the left side of the widget is offset to the right from its default drawing context (either its parent's topleft corner, or the document flow, depending on the value of the position property).
    Can also be set as a percentage, specified as a String ending in '%', eg, "50%". In this case the top coordinate is considered as a percentage of the specified width of the 'parent'.
    
    Returns:
    
    Return the left coordinate of this object, relative to its enclosing context, in pixels.
  - getFacetId
```
public java.lang.String getFacetId()
```
    If a Canvas is dropped onto a CubeGrid, and it has a facetId property specified then the Cube treats this as adding that facetId at the drop location.
    
    Returns:
    
    the facet id
  - setFacetId
```
public void setFacetId(java.lang.String facetId)
```
    If a Canvas is dropped onto a CubeGrid, and it has a facetId property specified then the Cube treats this as adding that facetId at the drop location.
    
    Parameters:
    
    facetId - the facet id
  - getTopAsString
```
public java.lang.String getTopAsString()
```
    Number of pixels the top of the widget is offset down from its default drawing context (either its parent's top-left corner, or the document flow, depending on the value of the position property).
    Can also be set as a percentage, specified as a String ending in '%', eg, "50%". In this case the top coordinate is considered as a percentage of the specified height of the 'parent'.
    
    Returns:
    
    Return the top coordinate of this object, relative to its enclosing context, in pixels.
  - setAlign
```
public void setAlign(Alignment align)
```
  - getAbsoluteLeft
```
public int getAbsoluteLeft()
```
    This method is similar to getPageLeft().
    
    Overrides:
    
    getAbsoluteLeft in class com.google.gwt.user.client.ui.UIObject
    
    Returns:
  - getAbsoluteTop
```
public int getAbsoluteTop()
```
    This method is similar to getPageTop().
    
    Overrides:
    
    getAbsoluteTop in class com.google.gwt.user.client.ui.UIObject
    
    Returns:
  - setAnimateShowEffect
```
public void setAnimateShowEffect(AnimationEffect animateShowEffect)
```
    Default animation effect to use if Canvas#animateShow() is called without an explicit effect parameter.
    
    Parameters:
    
    animateShowEffect - the animate show effect. Default is "wipe"
  - getAnimateShowEffect
```
public AnimationEffect getAnimateShowEffect()
```
    Default animation effect to use if Canvas#animateShow() is called without an explicit effect parameter.
    
    Returns:
    
    animation effect. Default value is "wipe"
  - setDisabled
```
public void setDisabled(boolean disabled)
```
    If set to true, the widget will be disabled. A widget is only considered enabled if it is individually enabled and all parents above it in the containment hierarchy are enabled. This allows you to enable or disable all components of a complex nested widget by enabling or disabling the top-level parent only. set the disabled state of this object
    Note : This is an advanced setting
    
    Parameters:
    
    disabled - new disabled state of this object - pass true to disable the widget. Default value is false
  - getDisabled
```
public boolean getDisabled()
```
    If set to true, the widget will be disabled. A widget is only considered enabled if it is individually enabled and all parents above it in the containment hierarchy are enabled. This allows you to enable or disable all components of a complex nested widget by enabling or disabling the top-level parent only.
    
    Returns:
    
    Is this canvas disabled? Note that the disabled state is inherited - this method will return true if this widget, or any of its ancestors are marked disabled.
  - setDragTarget
```
public void setDragTarget(Canvas dragTarget)
```
    A different widget that should be actually dragged when dragging initiates on this widget. One example of this is to have a child widget that drags its parent, as with a drag box. Because the parent automatically repositions its children, setting the drag target of the child to the parent and then dragging the child will result in both widgets being moved.
    Valid dragTarget values are:
    - null (default) [this widget is its own drag target]
    - Pointer to another widget, or widget ID
    - "parent" drag target is this widget's parentCanvas
    - "top" drag target is this widget's topElement
    
    Note : This is an advanced setting
    
    Parameters:
    
    dragTarget - dragTarget Default value is null
  - getDragTarget
```
public Canvas getDragTarget()
```
    A different widget that should be actually dragged when dragging initiates on this widget. One example of this is to have a child widget that drags its parent, as with a drag box. Because the parent automatically repositions its children, setting the drag target of the child to the parent and then dragging the child will result in both widgets being moved.
    Valid dragTarget values are:
    - null (default) [this widget is its own drag target]
    - Pointer to another widget, or widget ID
    - "parent" drag target is this widget's parentCanvas
    - "top" drag target is this widget's topElement
    
    Returns:
    
    Canvas
  - willAcceptDrop
```
public java.lang.Boolean willAcceptDrop()
```
    Returns true if the widget object being dragged can be dropped on this widget, and false or null otherwise. The default implementation of this method simply compares the dragType of the dragTarget (the component being dragged from) with the list of dropTypes on this Canvas. If the dropTypes list contains the dragType value, then this method returns true. Otherwise it returns false.
    No matter what you return, the onDropOver and onDropMove handlers will still be called, and their return value will control whether those events are bubbled to parent elements.
    However, what you return from willAcceptDrop() does determine whether the onDrop handler will be called.
    - If you return true, then onDrop() will be called, and its return value will determine whether the event is bubbled to parent elements.
    - If you return false, then onDrop() will not be called, and the event will not be bubbled.
    - If you return null, then onDrop() will not be called, but the event will be bubbled to parent elements (giving them a chance to handle the drop).
    So, you should return false to definitively deny a drop, and return null if it could make sense to allow a parent element (such as a Layout) to handle the drop.
    Note: This is an override point
    Returns:
    
    true if the widget object being dragged can be dropped on this widget, false if it cannot (and a drop event should not be bubbled), and null to permit a drop event to bubble to parent elements.
  - parentResized
```
protected void parentResized()
```
    Fires when the interior size of the parent changes, including parent resize and scrollbar introduction or removal.
    This method allows a child to implement a layout policy that can be used within any parent, such as a Resizer component that always snaps to the parent's bottom-right corner. The default implementation of this method applies a child's percent sizes, if any, or implements layout based on the snapTo property.
    Make sure you call super.parentResized() if you'd like the default behavior to apply.
    Note: This is an override point
  - getHoverComponent
```
public Canvas getHoverComponent()
```
    When showHoverComponents is true, this method is called to get the component to show as a hover for this Canvas. There is no default implementation of this method, so you need to override it with an implementation that returns a Canvas that suits your needs.
    By default, components returned by getHoverComponent() will not be automatically destroyed when the hover is hidden. To enforce this, set hoverAutoDestroy to true on the returned component.
    Note: this is an override point
    
    Returns:
    
    the component to show as a hover
  - setSmoothFade
```
public void setSmoothFade(java.lang.Boolean smoothFade)
                   throws java.lang.IllegalStateException
```
    Throws:
    
    java.lang.IllegalStateException
  - setKeepInParentRect
```
public void setKeepInParentRect(Rectangle rectangle)
```
  - setPrefix
```
public void setPrefix(java.lang.String prefix)
```
  - getPrefix
```
public java.lang.String getPrefix()
```
  - setResizeFrom
```
public void setResizeFrom(java.lang.String... resizeFrom)
```
    Deprecated. use #setResizeFrom(EdgeName) instead.
    
    Allows resizing in certain edges or corners. The default value of null indicates that the widget is resizable from any corner or edge. To restrict resizing to only certain corners, set resizeFrom to an array of any of the values listed:
    T top edge
    B bottom edge
    L left edge
    R right edge
    TL top-left corner
    TR top-right corner
    BL bottom-left corner
    BR bottom-right corner
    
    E.g. setting this property to a value of ["R","TR","BR"] would restrict resizing to the right edge, top-right corner and bottom-right corner only
    
    Parameters:
    
    resizeFrom - resizeFrom values
  - resizeTo
```
public java.lang.Boolean resizeTo(java.lang.String width,
                                  java.lang.String height)
```
    Resizes the widget to the specified width and height (moves the right and/ or bottom sides of the widget). The width and height parameters can be expressed as a percentage of viewport size or as the number of pixels.
    
    Parameters:
    
    width - new width for canvas
    
    height - new height for canvas
    
    Returns:
    
    whether the size actually changed
  - setProportionalResizeModifiers
```
public void setProportionalResizeModifiers(java.lang.String... proportionalResizeModifiers)
                                    throws java.lang.IllegalStateException
```
    If proportionalResizing is set to ProportionalResizeMode.MODIFIER or ProportionalResizeMode.MODIFIER_OFF then proportional resizing of the DrawItem is activated or deactivated, respectively, whenever at least one key in this set of modifier keys is pressed.
    The keys allowed in this set are: "Alt", "Ctrl", and "Shift". If this set of keys is empty then proportional resizing is always used if proportionalResizing is MODIFIER and is never used if proportionalResizing is MODIFIER_OFF.
    
    Parameters:
    
    proportionalResizeModifiers - Default value is ["Shift"]
    
    Throws:
    
    java.lang.IllegalStateException - this property cannot be changed after the underlying component has been created
  - getProportionalResizeModifiers
```
public java.lang.String[] getProportionalResizeModifiers()
```
    If proportionalResizing is set to ProportionalResizeMode.MODIFIER or ProportionalResizeMode.MODIFIER_OFF then proportional resizing of the DrawItem is activated or deactivated, respectively, whenever at least one key in this set of modifier keys is pressed.
    The keys allowed in this set are: "Alt", "Ctrl", and "Shift". If this set of keys is empty then proportional resizing is always used if proportionalResizing is MODIFIER and is never used if proportionalResizing is MODIFIER_OFF.
    
    Returns:
    
    String...
  - isVisible
```
public boolean isVisible()
```
    Returns true if the widget is visible, taking all parents into account, so that a widget which is not hidden might still report itself as not visible if it is within a hidden parent.
    NOTE: Undrawn widgets will report themselves as visible if they would be visible if drawn.
    
    Specified by:
    
    isVisible in interface com.google.gwt.user.client.ui.HasVisibility
    
    Overrides:
    
    isVisible in class com.google.gwt.user.client.ui.UIObject
    
    Returns:
    
    true if the widget is visible, false otherwise
  - animateScroll
```
public void animateScroll(int scrollLeft,
                          int scrollTop,
                          AnimationCallback callback)
```
    Animate a scroll from the current scroll position to the specified position.
    
    Parameters:
    
    scrollLeft - desired final left scroll postion
    
    scrollTop - desired final top scroll postion
    
    callback - When the scroll completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation
  - animateScroll
```
public void animateScroll(int scrollLeft,
                          int scrollTop,
                          AnimationCallback callback,
                          int duration)
```
    Animate a scroll from the current scroll position to the specified position.
    
    Parameters:
    
    scrollLeft - desired final left scroll postion
    
    scrollTop - desired final top scroll postion
    
    callback - When the scroll completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation
    
    duration - Duration in ms of the animated scroll
  - animateFade
```
public void animateFade(int opacity)
```
    Animate a change in opacity from the widget's current opacity to the specified opacity.
    
    Parameters:
    
    opacity - desired final opacity
  - animateFade
```
public void animateFade(int opacity,
                        AnimationCallback callback)
```
    Animate a change in opacity from the widget's current opacity to the specified opacity.
    
    Parameters:
    
    opacity - desired final opacity
    
    callback - When the fade completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation
  - animateFade
```
public void animateFade(int opacity,
                        AnimationCallback callback,
                        int duration)
```
    Animate a change in opacity from the widget's current opacity to the specified opacity.
    
    Parameters:
    
    opacity - desired final opacity
    
    callback - When the fade completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation
    
    duration - Duration in ms of the animated fade
  - animateFade
```
public void animateFade(int opacity,
                        AnimationCallback callback,
                        int duration,
                        AnimationAcceleration acceleration)
```
    Animate a change in opacity from the widget's current opacity to the specified opacity.
    
    Parameters:
    
    opacity - desired final opacity
    
    callback - When the fade completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation
    
    duration - Duration in ms of the animated fade
    
    acceleration - Animation acceleration to bias the ratios
  - animateHide
```
public void animateHide(AnimationEffect effect)
```
    Hide a canvas by shrinking it vertically to zero height over a period of time. This method will not fire if the widget is already drawn and visible, or has overflow other than "visible" or "hidden".
    
    Parameters:
    
    effect - How should the content of the window be hidden during the hide? If ommitted, default behavior can be configured via animateHideEffect
  - animateHide
```
public void animateHide(AnimationEffect effect,
                        AnimationCallback callback)
```
    Hide a canvas by shrinking it vertically to zero height over a period of time. This method will not fire if the widget is already drawn and visible, or has overflow other than "visible" or "hidden".
    
    Parameters:
    
    effect - How should the content of the window be hidden during the hide? If ommitted, default behavior can be configured via animateHideEffect
    
    callback - When the hide completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation.
  - animateHide
```
public void animateHide(AnimationEffect effect,
                        AnimationCallback callback,
                        int duration)
```
    Hide a canvas by shrinking it vertically to zero height over a period of time. This method will not fire if the widget is already drawn and visible, or has overflow other than "visible" or "hidden".
    
    Parameters:
    
    effect - How should the content of the window be hidden during the hide? If ommitted, default behavior can be configured via animateHideEffect
    
    callback - When the hide completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation.
    
    duration - Duration in ms of the animated hide. If unset, duration will be picked up from animateHideTime
  - animateShow
```
public void animateShow(AnimationEffect effect)
```
    Show a canvas by growing it vertically to its fully drawn height over a period of time. This method will not fire if the widget is already drawn and visible, or has overflow other than "visible" or "hidden".
    
    Parameters:
    
    effect - Animation effect to use when revealing the widget. If ommitted, default behavior can be configured via animateShowEffect
  - animateShow
```
public void animateShow(AnimateShowEffect effect)
```
    Show a canvas by growing it vertically to its fully drawn height over a period of time. This method will not fire if the widget is already drawn and visible, or has overflow other than "visible" or "hidden".
    
    Parameters:
    
    effect - AnimateShowEffect effect to use when revealing the widget. If ommitted, default behavior can be configured via animateShowEffect
  - animateShow
```
public void animateShow(AnimationEffect effect,
                        AnimationCallback callback)
```
    Show a canvas by growing it vertically to its fully drawn height over a period of time. This method will not fire if the widget is already drawn and visible, or has overflow other than "visible" or "hidden".
    
    Parameters:
    
    effect - Animation effect to use when revealing the widget. If ommitted, default behavior can be configured via animateShowEffect
    
    callback - When the show completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation.
  - animateShow
```
public void animateShow(AnimateShowEffect effect,
                        AnimationCallback callback)
```
    Show a canvas by growing it vertically to its fully drawn height over a period of time. This method will not fire if the widget is already drawn and visible, or has overflow other than "visible" or "hidden".
    
    Parameters:
    
    effect - AnimateShowEffect effect to use when revealing the widget. If ommitted, default behavior can be configured via animateShowEffect
    
    callback - When the show completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation.
  - animateShow
```
public void animateShow(AnimationEffect effect,
                        AnimationCallback callback,
                        int duration)
```
    Show a canvas by growing it vertically to its fully drawn height over a period of time. This method will not fire if the widget is already drawn and visible, or has overflow other than "visible" or "hidden".
    
    Parameters:
    
    effect - Animation effect to use when revealing the widget. If ommitted, default behavior can be configured via animateShowEffect
    
    callback - When the show completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation.
    
    duration - Duration in ms of the animated show. If unset, duration will be picked up from animateShowTime
  - animateShow
```
public void animateShow(AnimateShowEffect effect,
                        AnimationCallback callback,
                        int duration)
```
    Show a canvas by growing it vertically to its fully drawn height over a period of time. This method will not fire if the widget is already drawn and visible, or has overflow other than "visible" or "hidden".
    
    Parameters:
    
    effect - AnimateShowEffect effect to use when revealing the widget. If ommitted, default behavior can be configured via animateShowEffect
    
    callback - When the show completes this callback will be fired. Single 'earlyFinish' parameter will be passed if the animation was cut short by a call to finishAnimation.
    
    duration - Duration in ms of the animated show. If unset, duration will be picked up from animateShowTime
  - updateShadow
```
public void updateShadow()
```
    Update the canvas shadow.
  - getZIndex
```
public int getZIndex()
```
    Get the z-Index of this canvas.
    
    Returns:
    
    the zIndex
  - getNextZIndex
```
public int getNextZIndex()
```
    get the next zIndex for the next item to be drawn. see setZIndex() for notes
    
    Returns:
    
    the next zIndex
  - setZIndex
```
public void setZIndex(int newIndex)
```
    Set the z-Index of the canvas.
    
    Parameters:
    
    newIndex - the new zIndex to set to
  - getPageRect
```
public Rectangle getPageRect()
```
  - setRect
```
public void setRect(Rectangle rectangle)
```
    Set all four coordinates, relative to the enclosing context, at once.
    Moves the widget so that its top-left corner is at the specified top-left coordinates, then resizes it to the specified width and height.
    
    Parameters:
    
    rectangle - new coordinates
  - setRect
```
public void setRect(int left,
                    int top,
                    int width,
                    int height)
```
    Set all four coordinates, relative to the enclosing context, at once.
    Moves the widget so that its top-left corner is at the specified top-left coordinates, then resizes it to the specified width and height.
    
    Parameters:
    
    left - new left coordinate
    
    top - new top coordinate
    
    width - new width
    
    height - new height
  - getRect
```
public Rectangle getRect()
```
    Get all four coordinates, relative to the enclosing context, at one.
    
    Returns:
    
    the Rectangle
  - getImgURL
```
public static java.lang.String getImgURL(java.lang.String URL)
```
    Return the full URL for an image to be drawn in this canvas.
    If the passed URL begins with the special prefix "[SKIN]", it will have the widget.skinImgDir and Page.skinImgDir prepended. Otherwise the image is assumed to be application-specific, and will have the widget.appImgDir and Page.appImgDir automatically prepended.
    Note that if passed an absolute path (starting with "/" or "http://" for example), no extra image directory information will be prepended to the generated URL.//
    
    Parameters:
    
    URL - URL local to skin or application image directory
    
    Returns:
    
    URL to use
  - getImgURL
```
public static java.lang.String getImgURL(java.lang.String URL,
                                         java.lang.String imgDir)
```
    Return the full URL for an image to be drawn in this canvas.
    If the passed URL begins with the special prefix "[SKIN]", it will have the widget.skinImgDir and Page.skinImgDir prepended. Otherwise the image is assumed to be application-specific, and will have the widget.appImgDir and Page.appImgDir automatically prepended.
    Note that if passed an absolute path (starting with "/" or "http://" for example), no extra image directory information will be prepended to the generated URL.//
    
    Parameters:
    
    URL - URL local to skin or application image directory
    
    imgDir - optional image directory to override the default for this Canvas
    
    Returns:
    
    URL to use
  - imgHTML
```
public static java.lang.String imgHTML(java.lang.String src)
```
    Generates the HTML for an image unique to this Canvas.
    The full URL for the image will be formed according to the rules documented for getImgURL(java.lang.String).
    The created image will have an identifier unique to this Canvas, and subsequent calls to getImage(java.lang.String) and setImage(java.lang.String, java.lang.String) with the name passed to this function will act on the image object produced by the HTML returned from this call.
    
    Parameters:
    
    src - URL local to the skin or application directory.
    NOTE: instead of passing several parameters, you can pass an object as the 'src' parameter with properties for all the various function parameters with, eg:
    canvas.imgHTML( {src:"foo", width:10, height:10} );
    
    Returns:
    
    HTML to draw the image.
  - imgHTML
```
public static java.lang.String imgHTML(java.lang.String src,
                                       int width,
                                       int height,
                                       java.lang.String name,
                                       java.lang.String extraStuff,
                                       java.lang.String imgDir)
```
    Generates the HTML for an image unique to this Canvas.
    The full URL for the image will be formed according to the rules documented for getImgURL(java.lang.String).
    The created image will have an identifier unique to this Canvas, and subsequent calls to getImage(java.lang.String) and setImage(java.lang.String, java.lang.String) with the name passed to this function will act on the image object produced by the HTML returned from this call.
    
    Parameters:
    
    src - URL local to the skin or application directory.
    NOTE: instead of passing several parameters, you can pass an object as the 'src' parameter with properties for all the various function parameters with, eg:
    canvas.imgHTML( {src:"foo", width:10, height:10} );
    
    width - width of the image
    
    height - height of the image
    
    name - name for the image
    
    extraStuff - additional attributes to write in the tag
    
    imgDir - image-specific image directory to override the default for this Canvas
    
    Returns:
    
    HTML to draw the image.
  - imgHTML
```
public static java.lang.String imgHTML(java.lang.String src,
                                       int width,
                                       int height)
```
  - showPrintPreview
```
public static void showPrintPreview(Canvas component)
```
    Show a PrintWindow containing a printable view of the component passed in containing print HTML.
    
    Parameters:
    
    component - to get printable HTML for.
  - showPrintPreview
```
public static void showPrintPreview(java.lang.Object[] components)
```
    Show a Print containing a printable view of the components passed in.
    
    Parameters:
    
    components - components to get the print HTML for. May also include raw HTML strings which will be folded into the generated print output
  - showPrintPreview
```
public static void showPrintPreview(java.lang.Object[] components,
                                    PrintProperties printProperties,
                                    java.lang.String title,
                                    PrintPreviewCallback callback)
```
    Show a Print containing a printable view of the components passed in.
    
    Parameters:
    
    components - components to get the print HTML for. May also include raw HTML strings which will be folded into the generated print output
    
    printProperties - for customizing the print HTML output. If this parameter is passed as null, it will be ignored.
    
    title - for the print window
    
    callback - to fire when the print preview window has been created and shown
  - showPrintPreview
```
public static void showPrintPreview(java.lang.Object[] components,
                                    PrintProperties printProperties,
                                    java.lang.String title,
                                    PrintPreviewCallback callback,
                                    Window printWindowProperties,
                                    java.lang.String printButtonTitle)
```
    Show a Print containing a printable view of the components passed in.
    
    Parameters:
    
    components - components to get the print HTML for. May also include raw HTML strings which will be folded into the generated print output
    
    printProperties - for customizing the print HTML output. If this parameter is passed as null, it will be ignored.
    
    title - for the print window
    
    callback - to fire when the print preview window has been created and shown
    
    printWindowProperties - the print window properties
    
    printButtonTitle - the brint button title
  - getPrintHTML
```
public static void getPrintHTML(java.lang.Object[] components,
                                PrintProperties printProperties,
                                PrintHTMLCallback callback)
```
    Returns print-formatted HTML for the specified list of components.
    
    Parameters:
    
    components - Components to get the print HTML for. Strings of raw HTML may also be included in this array, and will be integrated into the final HTML at the appropriate point. HTML.
    
    printProperties - for customizing the print HTML output. If this parameter is passed as null, it will be ignored.
    
    callback - to fire when the HTML has been generated
    
    See Also:
    
    getPrintHTML(PrintProperties, PrintHTMLCallback)
  - getPrintHTML
```
public java.lang.String getPrintHTML(PrintProperties printProperties,
                                     PrintHTMLCallback callback)
```
    Retrieves printable HTML for this component and all printable subcomponents.
    By default any Canvas with children will simply collect the printable HTML of its children by calling getPrintHTML() on each child that is considered printable. If a callback is provided, then null is always returned and the callback is fired asynchronously.
    If overriding this method for a custom component, you should either return a String of printable HTML directly or return null and fire the provided callback using Class.fireCallback().
    To return an empty print representation, return an empty string ("") rather than null.
    The printProperties argument, if passed, must be passed to any subcomponents on which getPrintHTML() is called.
    Default implementation will set flag to true to indicate printing is in* progress, and clear this flag when the printing has completed (possibly via an asynchronous callback).
    NOTE: Expecting a direct return value from the default implementation is deprecated usage. This is because small changes to an application (such as adding a few more data points to a chart or adding another button) or using certain browsers can make it necessary to generate the HTML asynchronously. Thus, application code should not rely on the return value and always pass a callback.
    NOTE: CubeGrid does not support a WYSIWYG print view by default (also used when exporting to pdf). Instead we recommend exporting to excel or csv format.
    
    Parameters:
    
    printProperties - properties to configure printing behavior - may be null.
    
    callback - optional callback. This is required to handle cases where HTML generation is asynchronous - if a method generates HTML asynchronously, it should return null, and fire the specified callback on completion of HTML generation. The first parameter HTML should contain the generated print HTML. The callback is only called if null is returned. Furthermore, the default getPrintHTML() implementation always returns null and fires the callback when a callback is provided. See Callback.
    
    Returns:
    
    null if the print HTML is being generated asynchronously and/or a callback is provided; otherwise, the direct print HTML for this component (but note that returning direct print HTML is a deprecated feature).
    
    See Also:
    
    Printing overview and related methods
  - printComponents
```
public static void printComponents(java.lang.Object[] components)
```
    Generate printable HTML for the designated components and trigger the native print dialog, without ever showing the printable HTML to the user.
    
    Parameters:
    
    components - components to get the print HTML for. May also include raw HTML strings which will be folded into the generated print output
  - setAutoChildConstructor
```
public void setAutoChildConstructor(java.lang.String autoChildName,
                                    java.lang.String className)
```
    Sets the SmartClient constructor for the AutoChild named autoChildName.
    
    Parameters:
    
    autoChildName - the name of the AutoChild
    
    className - the SmartClient class name to use when constructing the AutoChild.
    
    See Also:
    
    AutoChildUsage
  - setAutoChildProperties
```
public void setAutoChildProperties(java.lang.String autoChildName,
                                   Canvas properties)
                            throws java.lang.IllegalStateException
```
    Sets the properties for creating a Canvas AutoChild named autoChildName.
    properties must not have already been created (properties.isCreated() must be false).
    NOTE: Overrides at override points are not applied to AutoChildren created from properties; that is, if the Java Class of properties overrides a Smart GWT override point, the custom method implementation will not be called.
    
    Throws:
    
    java.lang.IllegalStateException - if properties has been created.
    
    See Also:
    
    AutoChildUsage
  - setAutoChildProperties
```
public void setAutoChildProperties(java.lang.String autoChildName,
                                   FormItem properties)
                            throws java.lang.IllegalStateException
```
    Sets the properties for creating a FormItem AutoChild named autoChildName.
    properties must not have already been created (properties.isCreated() must be false).
    NOTE: Overrides at override points are not applied to AutoChildren created from properties; that is, if the Java Class of properties overrides a Smart GWT override point, the custom method implementation will not be called.
    
    Throws:
    
    java.lang.IllegalStateException - if properties has been created.
    
    See Also:
    
    AutoChildUsage
  - setAutoChildProperties
```
public void setAutoChildProperties(java.lang.String autoChildName,
                                   EditProxy properties)
                            throws java.lang.IllegalStateException
```
    Sets the properties for creating an AutoChild named autoChildName.
    properties must not have already been created (properties.isCreated() must be false).
    
    Throws:
    
    java.lang.IllegalStateException - if properties has been created.
    
    See Also:
    
    AutoChildUsage
  - setAutoChildProperties
```
public void setAutoChildProperties(java.lang.String autoChildName,
                                   EditContext properties)
                            throws java.lang.IllegalStateException
```
    Sets the properties for creating an AutoChild named autoChildName.
    properties must not have already been created (properties.isCreated() must be false).
    
    Throws:
    
    java.lang.IllegalStateException - if properties has been created.
    
    See Also:
    
    AutoChildUsage
  - setAutoChildVisibility
```
public void setAutoChildVisibility(java.lang.String autoChildName,
                                   boolean visible)
```
    Sets whether to create and show the AutoChild named autoChildName.
    NOTE: This API is not valid for all AutoChildren because some AutoChildren cannot be hidden without destroying the main functions of the component.
    
    Parameters:
    
    autoChildName - name of an AutoChild
    
    visible - whether to show the AutoChild
  - getCanvasAutoChild
```
public final Canvas getCanvasAutoChild(java.lang.String autoChildName)
```
    Returns the Canvas AutoChild named autoChildName if already created.
    
    Parameters:
    
    autoChildName - name of an AutoChild to return.
    
    Throws:
    
    java.lang.RuntimeException - if the AutoChild is not a SmartClient Canvas object.
    
    See Also:
    
    AutoChildUsage
  - getFormItemAutoChild
```
public final FormItem getFormItemAutoChild(java.lang.String autoChildName)
```
    Returns the FormItem AutoChild named autoChildName if already created.
    
    Parameters:
    
    autoChildName - name of an AutoChild to return.
    
    Throws:
    
    java.lang.RuntimeException - if the AutoChild is not a SmartClient FormItem object.
    
    See Also:
    
    AutoChildUsage
  - addChild
```
public void addChild(com.google.gwt.user.client.ui.Widget widget)
```
    Adds newChild as a child of this widget, set up a named object reference (i.e., this[name]) to the new widget if name argument is provided, and draw the child if this widget has been drawn already.
    If newChild has a parent it will be removed from it. If it has a master, it will be detached from it if the master is a child of a different parent. If newChild has peers, they'll be added to this widget as children as well.
    
    Parameters:
    
    newChild - new child canvas to add
  - addChild
```
public Canvas addChild(Canvas newChild,
                       java.lang.String name,
                       boolean autoDraw)
```
    Adds newChild as a child of this widget, set up a named object reference (i.e., this[name]) to the new widget if name argument is provided, and draw the child if this widget has been drawn already.
    If newChild has a parent it will be removed from it. If it has a master, it will be detached from it if the master is a child of a different parent. If newChild has peers, they'll be added to this widget as children as well.
    
    Parameters:
    
    newChild - new child canvas to add
    
    name - name to assign to child (eg: this[name] == child)
    
    autoDraw - if false, child will not automatically be drawn (only for advanced use)
    
    Returns:
    
    the new child, or null if it couldn't be added
    
    See Also:
    
    Containment overview and related methods
  - setChildren
```
public void setChildren(Canvas... children)
```
    Array of all Canvii that are immediate children of this Canvas.
    Note : This is an advanced setting
    
    Parameters:
    
    children - children Default value is null
  - getOffsetHeight
```
public int getOffsetHeight()
```
    Overrides:
    
    getOffsetHeight in class com.google.gwt.user.client.ui.UIObject
  - getOffsetWidth
```
public int getOffsetWidth()
```
    Overrides:
    
    getOffsetWidth in class com.google.gwt.user.client.ui.UIObject
  - setAutoHeight
```
public void setAutoHeight()
```
    Set the minimum value for height.
    For use with setOverflow(Overflow.VISIBLE), where widgets render only as large as their contents and/or children, and height and width settings act as a minimum size.
  - setAutoWidth
```
public void setAutoWidth()
```
    Set the minimum value for width.
    For use with setOverflow(Overflow.VISIBLE), where widgets render only as large as their contents and/or children, and height and width settings act as a minimum size.
  - showClickMask
```
public java.lang.String showClickMask(Function clickActionCallback,
                                      ClickMaskMode mode,
                                      Canvas[] unmaskedTargets)
```
    Show a clickMask over the entire screen that intercepts mouse clicks and fires some action. The mask created will be associated with this canvas - calling this method multiple times will not show multiple (stacked) clickMasks if the mask associated with this canvas is already up.
    
    The clickMask useful for modal dialogs, menus and similar uses, where any click outside of some Canvas should either be suppressed (as in a modal dialog) or just cause something (like dismissing a menu).
    
    Parameters:
    
    clickActionCallback - action to fire when the user clicks on the mask
    
    mode - whether to automatically hide the clickMask on mouseDown and suppress the mouseDown event from reaching the target under the mouse
    
    unmaskedTargets - initially unmasked targets for this clickMask. Note that if this is a "hard" mask, unmasked children of masked parents are not supported so any non-top-level widgets passed in will have their parents unmasked. Children of masked parents can never be masked.
    
    Returns:
    
    clickMask ID
  - visibleAtPoint
```
public java.lang.Boolean visibleAtPoint(int x,
                                        int y,
                                        boolean withinViewport,
                                        Canvas ignoreWidgets,
                                        Canvas upToParent)
```
    Does this widget contain the specified global (x,y) coordinates, and have no other widgets also at the specified position, obscuring this one? This is commonly used for (for example) drag and drop interactions.
    
    Parameters:
    
    x - GLOBAL x-coordinate
    
    y - GLOBAL y-coordinate
    
    withinViewport - point lies within our viewport rather than just our drawn area
    
    ignoreWidgets - If passed ignore widget(s), do not check whether those widgets occludes this one
    
    upToParent - If passed, only check for siblings occluding the component up as far as the specified parent widget
    
    Returns:
    
    true if this object contains the specified point; false otherwise
    
    See Also:
    
    Positioning overview and related methods
  - setAriaState
```
public void setAriaState(java.lang.String stateName,
                         java.lang.Object stateValue)
                  throws java.lang.IllegalStateException
```
    Set a specific ARIA state mapping for this component. Usually this does not need to be manually set. See com.smartgwt.docs.Accessibility.
    
    Parameters:
    
    stateName -
    
    stateValue -
    
    Throws:
    
    java.lang.IllegalStateException - ARIA state cannot be changed after the component has been created.
  - updateEditNode
```
public void updateEditNode(EditContext editContext,
                           EditNode editNode)
```
    A callback invoked for each liveObject by EditContext when the EditContext is being serialized. The liveObject may make any updates needed to the EditNode (or the EditContext as a whole) in order to be able to later recreate the objects.
    Note: This is an override point
    
    Parameters:
    
    editContext - the EditContext
    
    editNode - the EditNode
    
    See Also:
    
    EditContext.serializeAllEditNodes(), EditContext.serializeEditNodes(com.smartgwt.client.tools.EditNode[])
  - provideRuleContext
```
public void provideRuleContext(java.lang.String dataPath,
                               java.lang.Object data)
```
  - setLogicalStructure
```
public com.smartgwt.logicalstructure.core.LogicalStructureObject setLogicalStructure(com.smartgwt.logicalstructure.widgets.CanvasLogicalStructure s)
```
    Setter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
  - getLogicalStructure
```
public com.smartgwt.logicalstructure.core.LogicalStructureObject getLogicalStructure()
```
    Getter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
    
    Specified by:
    
    getLogicalStructure in interface LogicalStructure
    
    Overrides:
    
    getLogicalStructure in class BaseWidget

Class Canvas

Nested Class Summary

Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject

Field Summary

Fields inherited from class com.smartgwt.client.widgets.BaseWidget

Fields inherited from class com.google.gwt.user.client.ui.UIObject

Constructor Summary

Method Summary

Methods inherited from class com.smartgwt.client.widgets.BaseWidget

Methods inherited from class com.google.gwt.user.client.ui.Widget

Methods inherited from class com.google.gwt.user.client.ui.UIObject

Methods inherited from class java.lang.Object

Methods inherited from interface com.google.gwt.event.shared.HasHandlers

Constructor Detail

Canvas

Canvas

Canvas

Method Detail

getOrCreateRef

changeAutoChildDefaults

changeAutoChildDefaults

create

setAccessKey

getAccessKey

setAlwaysShowScrollbars

getAlwaysShowScrollbars

setAnimateAcceleration

getAnimateAcceleration

setAnimateFadeTime

getAnimateFadeTime

setAnimateHideAcceleration

getAnimateHideAcceleration

setAnimateHideTime

getAnimateHideTime

setAnimateMoveAcceleration

getAnimateMoveAcceleration

setAnimateMoveTime

getAnimateMoveTime

setAnimateRectAcceleration

getAnimateRectAcceleration

setAnimateRectTime

getAnimateRectTime

setAnimateResizeAcceleration

getAnimateResizeAcceleration

setAnimateResizeTime

getAnimateResizeTime

setAnimateScrollAcceleration

getAnimateScrollAcceleration

setAnimateScrollTime

getAnimateScrollTime

setAnimateShowAcceleration

getAnimateShowAcceleration

setAnimateShowTime

getAnimateShowTime

setAnimateTime

getAnimateTime

setAppImgDir

getAppImgDir

setAriaRole

getAriaRole

setAutoDraw

getAutoDraw

setAutoMaskComponents

getAutoMaskComponents

setAutoShowParent

getAutoShowParent

setBackgroundColor

getBackgroundColor

setBackgroundImage

getBackgroundImage

setBackgroundPosition

getBackgroundPosition

setBackgroundRepeat

getBackgroundRepeat

setBorder

getBorder

setCanAcceptDrop

getCanAcceptDrop

setCanDrag

getCanDrag