com.smartgwt.client.widgets.drawing

Class DrawKnob

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

com.smartgwt.client.widgets.drawing.DrawKnob

All Implemented Interfaces:

HasAttachHandlers, HasHandlers, EventListener, HasVisibility, 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

public class DrawKnob
extends Canvas

Canvas that renders a DrawItem into a DrawPane and provides interactivity for that drawItem, including drag and drop.

A DrawKnob can either be initialized with a DrawItem knobShape or created via the com.smartgwt.client.types.AutoChild pattern.

DrawKnobs are used by the drawItem control knobs subsystem.

Nested Class Summary

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

UIObject.DebugIdImpl, 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
DrawKnob()
DrawKnob(JavaScriptObject jsObj)

Method Summary

Methods

Modifier and Type	Method and Description
static void	changeAutoChildDefaults(java.lang.String autoChildName, Canvas defaults) Changes the defaults for Canvas AutoChildren named autoChildName.
static void	changeAutoChildDefaults(java.lang.String autoChildName, DrawItem defaults) Changes the defaults for DrawItem AutoChildren named autoChildName.
static void	changeAutoChildDefaults(java.lang.String autoChildName, FormItem defaults) Changes the defaults for FormItem AutoChildren named autoChildName.
protected JavaScriptObject	create()
DrawItem	getDrawItemAutoChild(java.lang.String autoChildName) Returns the DrawItem AutoChild named autoChildName if already created.
DrawPane	getDrawPane() DrawPane into which this DrawKnob's knobShape will be rendered.
DrawItem	getKnobShape() The DrawItem instance rendered into this DrawKnob's drawPane
DrawItem	getKnobShapeDefaults() Default properties for this component's knobShape.
com.smartgwt.logicalstructure.core.LogicalStructureObject	getLogicalStructure() Getter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
static DrawKnob	getOrCreateRef(JavaScriptObject jsObj)
java.lang.Integer	getX() X-Coordinate for this DrawKnob.
java.lang.Integer	getY() Y-Coordinate for this DrawKnob.
void	setAutoChildProperties(java.lang.String autoChildName, DrawItem properties) Sets the properties for creating a DrawItem AutoChild named autoChildName.
void	setCenterPoint(java.lang.Integer x, java.lang.Integer y) Sets the center point of the drawKnob.
void	setCenterPoint(java.lang.Integer x, java.lang.Integer y, boolean viewboxCoords) Sets the center point of the drawKnob.
static void	setDefaultProperties(DrawKnob drawKnobProperties) Class level method to set the default properties of this class.
void	setDrawPane(DrawPane drawPane) DrawPane into which this DrawKnob's knobShape will be rendered.
void	setKnobShapeDefaults(DrawItem knobShapeDefaults) Default properties for this component's knobShape.
com.smartgwt.logicalstructure.core.LogicalStructureObject	setLogicalStructure(com.smartgwt.logicalstructure.widgets.drawing.DrawKnobLogicalStructure s) Setter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
void	setX(java.lang.Integer x) X-Coordinate for this DrawKnob.
void	setY(java.lang.Integer y) Y-Coordinate for this DrawKnob.
void	updatePoints(java.lang.Integer x, java.lang.Integer y, java.lang.Integer dX, java.lang.Integer dY, java.lang.String state) Method called in response to the user dragging this DrawKnob.

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

addChild, addChild, addChild, addChild, addChild, addClickHandler, addDoubleClickHandler, addDragMoveHandler, addDragRepositionMoveHandler, addDragRepositionStartHandler, addDragRepositionStopHandler, addDragResizeMoveHandler, addDragResizeStartHandler, addDragResizeStopHandler, addDragStartHandler, addDragStopHandler, addDropHandler, addDropMoveHandler, addDropOutHandler, addDropOverHandler, addFocusChangedHandler, addHoverHandler, addHoverHiddenHandler, addKeyDownHandler, addKeyPressHandler, addMouseDownHandler, addMouseMoveHandler, addMouseOutHandler, addMouseOverHandler, addMouseStillDownHandler, addMouseUpHandler, addMouseWheelHandler, addMovedHandler, addParentMovedHandler, addPeer, addPeer, addPeer, addPeer, addResizedHandler, addRightMouseDownHandler, addScrolledHandler, addShowContextMenuHandler, addStyleName, addVisibilityChangedHandler, adjustForContent, animateFade, animateFade, animateFade, animateFade, animateFade, animateFade, animateFade, animateFade, animateHide, animateHide, animateHide, animateMove, animateMove, animateMove, animateMove, animateRect, animateRect, animateRect, animateRect, animateResize, animateResize, animateResize, animateResize, animateScroll, animateScroll, animateScroll, animateScroll, animateScroll, animateScroll, animateShow, animateShow, animateShow, animateShow, animateShow, animateShow, asSGWTComponent, blur, bringToFront, clear, clickMaskUp, clickMaskUp, contains, contains, containsEvent, containsFocus, containsPoint, containsPoint, deparent, depeer, disable, enable, encloses, focus, focusInNextTabElement, focusInPreviousTabElement, getAbsoluteLeft, getAbsoluteTop, getAccessKey, getAlwaysShowScrollbars, getAnimateAcceleration, getAnimateFadeTime, getAnimateHideAcceleration, getAnimateHideTime, getAnimateMoveAcceleration, getAnimateMoveTime, getAnimateRectAcceleration, getAnimateRectTime, getAnimateResizeAcceleration, getAnimateResizeTime, getAnimateScrollAcceleration, getAnimateScrollTime, getAnimateShowAcceleration, getAnimateShowEffect, getAnimateShowTime, getAnimateTime, getAppImgDir, getAriaRole, getAutoDraw, getAutoMaskComponents, getAutoShowParent, getBackgroundColor, getBackgroundImage, getBackgroundPosition, getBackgroundRepeat, getBorder, getBottom, getById, getByJSObject, getByLocalId, getCanAcceptDrop, getCanDrag, getCanDragReposition, getCanDragResize, getCanDragScroll, getCanDrop, getCanDropBefore, getCanFocus, getCanHover, getCanSelectText, getCanvasAutoChild, getCanvasItem, getChildren, getChildrenSnapResizeToGrid, getChildrenSnapToGrid, getClassName, getComponentMask, getComponentMaskDefaults, getContentElement, getContents, getContextMenu, getCursor, getDataPath, getDefaultHeight, getDefaultWidth, getDestroyed, getDestroying, getDisabled, getDisabledCursor, getDisableTouchScrollingForDrag, getDoubleClickDelay, getDragAppearance, getDragIntersectStyle, getDragMaskType, getDragOpacity, getDragRepositionAppearance, getDragRepositionCursor, getDragResizeAppearance, getDragScrollDelay, getDragStartDistance, getDragTarget, getDragType, getDropTypes, getDropTypesAsString, getDynamicContents, getEdgeBackgroundColor, getEdgeCenterBackgroundColor, getEdgeImage, getEdgeMarginSize, getEdgeOffset, getEdgeOpacity, getEdgeShowCenter, getEdgeSize, getEditNode, getEditProxy, getEditProxyConstructor, getElement, getElement, getEventEdge, getEventEdge, getExtraSpace, getFacetId, getFormItemAutoChild, getFullDataPath, getGroupBorderCSS, getGroupLabelBackgroundColor, getGroupLabelStyleName, getGroupTitle, getHeight, getHeightAsString, getHideUsingDisplayNone, getHoverAlign, getHoverAutoDestroy, getHoverComponent, getHoverDelay, getHoverHeight, getHoverHTML, getHoverMoveWithMouse, getHoverOpacity, getHoverStyle, getHoverVAlign, getHoverWidth, getHoverWrap, getHSnapOrigin, getHSnapOrigin, getHSnapPosition, getHSnapPosition, getHtmlElement, getHtmlPosition, getImage, getImgURL, getImgURL, getInnerContentHeight, getInnerContentWidth, getInnerHeight, getInnerWidth, getIsGroup, getKeepInParentRect, getLayoutAlign, getLeavePageSpace, getLeft, getLeftAsString, getLocateChildrenBy, getLocateChildrenType, getLocatePeersBy, getLocatePeersType, getMargin, getMasterCanvas, getMasterElement, getMatchElement, getMaxHeight, getMaxWidth, getMenuConstructor, getMinHeight, getMinNonEdgeSize, getMinWidth, getMomentumScrollMinSpeed, getMouseStillDownDelay, getMouseStillDownInitialDelay, getNextZIndex, getNoDoubleClicks, getOffsetHeight, getOffsetWidth, getOffsetX, getOffsetY, getOpacity, getOuterElement, getOverflow, getPadding, getPageBottom, getPageLeft, getPageRect, getPageRight, getPageTop, getParentCanvas, getParentElement, getPeers, getPercentBox, getPercentSource, getPosition, getPrefix, getPrintChildrenAbsolutelyPositioned, getPrintHTML, getPrintHTML, getPrompt, getProportionalResizeModifiers, getProportionalResizing, getRect, getRedrawOnResize, getResizeBarTarget, getResizeFrom, getRight, getScrollbarSize, getScrollBottom, getScrollHeight, getScrollLeft, getScrollRight, getScrollTop, getScrollWidth, getShadowDepth, getShadowImage, getShadowOffset, getShadowSoftness, getShouldPrint, getShowCustomScrollbars, getShowDragShadow, getShowEdges, getShowHover, getShowHoverComponents, getShowResizeBar, getShowShadow, getShowSnapGrid, getShrinkElementOnHide, getSkinImgDir, getSnapAxis, getSnapEdge, getSnapHDirection, getSnapHGap, getSnapOffsetLeft, getSnapOffsetTop, getSnapOnDrop, getSnapResizeToGrid, getSnapTo, getSnapToGrid, getSnapVDirection, getSnapVGap, getStyleName, getTabIndex, getTestInstance, getTitle, getTooltip, getTop, getTopAsString, getTopElement, getUseBackMask, getUseDragMask, getUseNativeDrag, getUseOpacityFilter, getUseTouchScrolling, getValuesManager, getViewportHeight, getViewportWidth, getVisibility, getVisibleHeight, getVisibleWidth, getVSnapOrigin, getVSnapOrigin, getVSnapPosition, getVSnapPosition, getWidth, getWidthAsString, getZIndex, getZIndex, handleHover, hide, hideClickMask, hideClickMask, hideComponentMask, hideContextMenu, imgHTML, imgHTML, imgHTML, intersects, isDirty, isDisabled, isDrawn, isFocused, isVisible, keyUp, layoutChildren, linkHTML, linkHTML, linkHTML, linkHTML, linkHTML, linkHTML, markForDestroy, markForRedraw, markForRedraw, moveAbove, moveBelow, moveBy, moveTo, onAttach, onDetach, onInit, parentResized, printComponents, redraw, redraw, removeChild, removeChild, removePeer, removePeer, resizeBy, resizeTo, resizeTo, scrollBy, scrollByPercent, scrollTo, scrollTo, scrollTo, scrollToBottom, scrollToLeft, scrollToPercent, scrollToRight, scrollToTop, sendToBack, setAccessKey, setAlign, setAllowExternalFilters, setAlwaysShowScrollbars, setAnimateAcceleration, setAnimateFadeTime, setAnimateHideAcceleration, setAnimateHideTime, setAnimateMoveAcceleration, setAnimateMoveTime, setAnimateRectAcceleration, setAnimateRectTime, setAnimateResizeAcceleration, setAnimateResizeTime, setAnimateScrollAcceleration, setAnimateScrollTime, setAnimateShowAcceleration, setAnimateShowEffect, setAnimateShowTime, setAnimateTime, setAppImgDir, setAriaRole, setAriaState, setAutoChildConstructor, setAutoChildProperties, setAutoChildProperties, setAutoChildProperties, setAutoChildProperties, setAutoChildVisibility, setAutoDraw, setAutoHeight, setAutoMaskComponents, setAutoShowParent, setAutoWidth, setBackgroundColor, setBackgroundImage, setBackgroundPosition, setBackgroundRepeat, setBorder, setBottom, setCanAcceptDrop, setCanDrag, setCanDragReposition, setCanDragResize, setCanDragScroll, setCanDrop, setCanDropBefore, setCanFocus, setCanHover, setCanSelectText, setChildren, setChildrenSnapResizeToGrid, setChildrenSnapToGrid, setComponentMaskDefaults, setContents, setContextMenu, setCursor, setDataPath, setDefaultHeight, setDefaultPageSpace, setDefaultProperties, setDefaultWidth, setDisabled, setDisabledCursor, setDisableTouchScrollingForDrag, setDoubleClickDelay, setDragAppearance, setDragIntersectStyle, setDragMaskType, setDragOpacity, setDragRepositionAppearance, setDragRepositionCursor, setDragResizeAppearance, setDragScrollDelay, setDragStartDistance, setDragTarget, setDragType, setDropTypes, setDropTypes, setDynamicContents, setEdgeBackgroundColor, setEdgeCenterBackgroundColor, setEdgeImage, setEdgeMarginSize, setEdgeOffset, setEdgeOpacity, setEdgeShowCenter, setEdgeSize, setEditMode, setEditMode, setEditMode, setEditProxyConstructor, setElement, setExtraSpace, setFacetId, setGroupBorderCSS, setGroupLabelBackgroundColor, setGroupLabelStyleName, setGroupTitle, setHeight, setHeight, setHeight, setHeight100, setHideUsingDisplayNone, setHoverAlign, setHoverAutoDestroy, setHoverDelay, setHoverHeight, setHoverMoveWithMouse, setHoverOpacity, setHoverStyle, setHoverVAlign, setHoverWidth, setHoverWrap, setHtmlElement, setHtmlPosition, setImage, setImage, setInitHandler, setIsGroup, setKeepInParentRect, setKeepInParentRect, setKeepInParentRect, setLayoutAlign, setLayoutAlign, setLeavePageSpace, setLeft, setLeft, setLocateChildrenBy, setLocateChildrenType, setLocatePeersBy, setLocatePeersType, setLogicalStructure, setMargin, setMatchElement, setMaxHeight, setMaxWidth, setMenuConstructor, setMinHeight, setMinNonEdgeSize, setMinWidth, setMomentumScrollMinSpeed, setMouseStillDownDelay, setMouseStillDownInitialDelay, setNeverUseFilters, setNoDoubleClicks, setOpacity, setOverflow, setPadding, setPageLeft, setPageTop, setParentCanvas, setParentElement, setPeers, setPercentBox, setPercentSource, setPosition, setPrefix, setPrintChildrenAbsolutelyPositioned, setPrompt, setProportionalResizeModifiers, setProportionalResizing, setRect, setRect, setRedrawOnResize, setResizeBarTarget, setResizeFrom, setResizeFrom, setRight, setScrollbarConstructor, setScrollbarSize, setShadowDepth, setShadowImage, setShadowOffset, setShadowSoftness, setShouldPrint, setShowCustomScrollbars, setShowDragShadow, setShowEdges, setShowHover, setShowHoverComponents, setShowResizeBar, setShowShadow, setShowSnapGrid, setShrinkElementOnHide, setSkinImgDir, setSmoothFade, setSnapAxis, setSnapEdge, setSnapHDirection, setSnapHGap, setSnapOffsetLeft, setSnapOffsetTop, setSnapOnDrop, setSnapResizeToGrid, setSnapTo, setSnapToGrid, setSnapVDirection, setSnapVGap, setStyleName, setTabIndex, setTitle, setTooltip, setTop, setTop, setUseBackMask, setUseDragMask, setUseNativeDrag, setUseOpacityFilter, setUseTouchScrolling, setValuesManager, setVisibility, setVisible, setWidth, setWidth, setWidth, setWidth100, setZIndex, shouldDragScroll, show, showClickMask, showComponentMask, showComponentMask, showNextTo, showNextTo, showNextTo, showNextTo, showPrintPreview, showPrintPreview, showPrintPreview, showPrintPreview, showRecursively, updateEditNode, updateHover, updateHover, updateShadow, visibleAtPoint, willAcceptDrop

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

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, unsinkEvents

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

DrawKnob

public DrawKnob()

DrawKnob

public DrawKnob(JavaScriptObject jsObj)

Method Detail

getOrCreateRef

public static DrawKnob getOrCreateRef(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.

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.

See Also:

AutoChildUsage

changeAutoChildDefaults

public static void changeAutoChildDefaults(java.lang.String autoChildName,
                           DrawItem defaults)

Changes the defaults for DrawItem AutoChildren named autoChildName.

Parameters:

autoChildName - name of an AutoChild to customize the defaults for.

defaults - DrawItem defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties.

See Also:

AutoChildUsage

create

protected JavaScriptObject create()

Overrides:

create in class Canvas

setDrawPane

public void setDrawPane(DrawPane drawPane)
                 throws java.lang.IllegalStateException

DrawPane into which this DrawKnob's knobShape will be rendered.

Parameters:

drawPane - Default value is null

Throws:

java.lang.IllegalStateException - this property cannot be changed after the component has been created

getDrawPane

public DrawPane getDrawPane()

DrawPane into which this DrawKnob's knobShape will be rendered.

Returns:

DrawPane

getKnobShape

public DrawItem getKnobShape()
                      throws java.lang.IllegalStateException

The DrawItem instance rendered into this DrawKnob's drawPane

For an overview of how to use and configure AutoChildren, see Using AutoChildren.

Returns:

DrawItem

Throws:

java.lang.IllegalStateException - if this widget has not yet been rendered.

setKnobShapeDefaults

public void setKnobShapeDefaults(DrawItem knobShapeDefaults)
                          throws java.lang.IllegalStateException

Default properties for this component's knobShape. Has the following properties by default:

   radius : 5,
   lineWidth:2,
   fillColor:"#FF0000",
   fillOpacity:0.5,
  

Note : This is an advanced setting

Parameters:

knobShapeDefaults - Default value is {...}

Throws:

java.lang.IllegalStateException - this property cannot be changed after the component has been created

getKnobShapeDefaults

public DrawItem getKnobShapeDefaults()

Default properties for this component's knobShape. Has the following properties by default:

   radius : 5,
   lineWidth:2,
   fillColor:"#FF0000",
   fillOpacity:0.5,
  

Returns:

DrawItem

setX

public void setX(java.lang.Integer x)
          throws java.lang.IllegalStateException

X-Coordinate for this DrawKnob. DrawKnob will initially be drawn centered over this coordinate

Parameters:

x - Default value is null

Throws:

java.lang.IllegalStateException - this property cannot be changed after the component has been created

getX

public java.lang.Integer getX()

X-Coordinate for this DrawKnob. DrawKnob will initially be drawn centered over this coordinate

Returns:

Integer

setY

public void setY(java.lang.Integer y)
          throws java.lang.IllegalStateException

Y-Coordinate for this DrawKnob. DrawKnob will initially be drawn centered over this coordinate

Parameters:

y - Default value is null

Throws:

java.lang.IllegalStateException - this property cannot be changed after the component has been created

getY

public java.lang.Integer getY()

Y-Coordinate for this DrawKnob. DrawKnob will initially be drawn centered over this coordinate

Returns:

Integer

setCenterPoint

public void setCenterPoint(java.lang.Integer x,
                  java.lang.Integer y)

Sets the center point of the drawKnob. If the optional viewboxCoords argument is passed, coordinates are expected to be already adjusted for drawPane pan and zoom. Otherwise coordinates are expected to be absolute pixel coordinates within the drawPane.

Parameters:

x - new x coordinate for this drawKnob

y - new y coordinate for this drawKnob

setCenterPoint

public void setCenterPoint(java.lang.Integer x,
                  java.lang.Integer y,
                  boolean viewboxCoords)

Sets the center point of the drawKnob. If the optional viewboxCoords argument is passed, coordinates are expected to be already adjusted for drawPane pan and zoom. Otherwise coordinates are expected to be absolute pixel coordinates within the drawPane.

Parameters:

x - new x coordinate for this drawKnob

y - new y coordinate for this drawKnob

viewboxCoords - If true, the x and y values are expected to be in the viewbox coordinate system (described here) - already adjusted for any zoom or pan applied to the drawPane.

updatePoints

public void updatePoints(java.lang.Integer x,
                java.lang.Integer y,
                java.lang.Integer dX,
                java.lang.Integer dY,
                java.lang.String state)

Method called in response to the user dragging this DrawKnob. May be observed or overridden to allow drawItems to react to user drag interactions on this knob.

Note that the default implementation does nothing. When working with draw knobs directly this is typically where you would both update the shape being controlled by the draw knob, and ensure the drawKnob gets repositioned. You may also need to update the drawKnob position in response to the drawItem being repositioned, resized, etc.

Parameters:

x - new x-coordinate of the drawKnob

y - new y-coordinate of the drawKnob

dX - horizontal distance moved

dY - vertical distance moved

state - either "start", "move", or "stop", to indicate the current phase of dragging of the DrawKnob for which the points need to be updated

setDefaultProperties

public static void setDefaultProperties(DrawKnob drawKnobProperties)

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:

drawKnobProperties - properties that should be used as new defaults when instances of this class are created

setAutoChildProperties

public void setAutoChildProperties(java.lang.String autoChildName,
                          DrawItem properties)

Sets the properties for creating a DrawItem AutoChild named autoChildName.

properties must not have already been created (properties.isCreated() must be false).

NOTE: Overrides at override points are not applied to the AutoChild 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

getDrawItemAutoChild

public final DrawItem getDrawItemAutoChild(java.lang.String autoChildName)

Returns the DrawItem 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 DrawItem object.

See Also:

AutoChildUsage

setLogicalStructure

public com.smartgwt.logicalstructure.core.LogicalStructureObject setLogicalStructure(com.smartgwt.logicalstructure.widgets.drawing.DrawKnobLogicalStructure 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 Canvas