com.smartgwt.client.widgets.drawing

Class DrawImage

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.drawing.DrawItem

com.smartgwt.client.widgets.drawing.DrawImage

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, HasDragMoveHandlers, HasDragResizeMoveHandlers, HasDragResizeStartHandlers, HasDragResizeStopHandlers, HasDragStartHandlers, HasDragStopHandlers, HasDrawEndHandlers, HasDrawStartHandlers, HasMouseDownHandlers, HasMouseMoveHandlers, HasMouseOutHandlers, HasMouseOverHandlers, HasMouseUpHandlers, HasMovedHandlers, HasResizedHandlers, HasShowContextMenuHandlers

public class DrawImage
extends DrawItem

DrawItem subclass to render embedded images.

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

Method Summary

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 com.google.gwt.core.client.JavaScriptObject	create()
Point	getCenter() Get the center point of the image.
int	getHeight() Height in pixels relative to the local coordinate system.
double	getHeightAsDouble() Height in pixels relative to the local coordinate system.
int	getLeft() Left coordinate in pixels relative to the local coordinate system.
double	getLeftAsDouble() Left coordinate in pixels relative to the local coordinate system.
com.smartgwt.logicalstructure.core.LogicalStructureObject	getLogicalStructure() Getter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
static DrawImage	getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)
java.lang.String	getSrc() URL to the image file.
java.lang.String	getTitle() Title (tooltip hover text) for this image.
int	getTop() Top coordinate in pixels relative to the local coordinate system.
double	getTopAsDouble() Top coordinate in pixels relative to the local coordinate system.
java.lang.Boolean	getUseMatrixFilter() Configures whether a Matrix filter is used to render this DrawImage in Internet Explorer 6-8.
int	getWidth() Width in pixels relative to the local coordinate system.
double	getWidthAsDouble() Width in pixels relative to the local coordinate system.
void	moveBy(int dX, int dY) Move the drawImage by the specified delta
void	moveTo(java.lang.Integer left, java.lang.Integer top) Move the drawImage to the specified position
static void	setDefaultProperties(DrawImage drawImageProperties) Class level method to set the default properties of this class.
void	setHeight(int height) Height in pixels relative to the local coordinate system.
void	setLeft(int left) Left coordinate in pixels relative to the local coordinate system.
com.smartgwt.logicalstructure.core.LogicalStructureObject	setLogicalStructure(com.smartgwt.logicalstructure.widgets.drawing.DrawImageLogicalStructure s) Setter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
void	setRect(java.lang.Integer left, java.lang.Integer top, java.lang.Integer width, java.lang.Integer height) Updates the drawImage to match the specified coordinates and size in local coordinates.
void	setSrc(java.lang.String src) URL to the image file.
void	setTitle(java.lang.String title) Title (tooltip hover text) for this image.
void	setTop(int top) Top coordinate in pixels relative to the local coordinate system.
void	setUseMatrixFilter(java.lang.Boolean useMatrixFilter) Configures whether a Matrix filter is used to render this DrawImage in Internet Explorer 6-8.
void	setWidth(int width) Width in pixels relative to the local coordinate system.

Methods inherited from class com.smartgwt.client.widgets.drawing.DrawItem

addClickHandler, addDragMoveHandler, addDragResizeMoveHandler, addDragResizeStartHandler, addDragResizeStopHandler, addDragStartHandler, addDragStopHandler, addDrawEndHandler, addDrawStartHandler, addMouseDownHandler, addMouseMoveHandler, addMouseOutHandler, addMouseOverHandler, addMouseUpHandler, addMovedHandler, addResizedHandler, addShowContextMenuHandler, bringToFront, computeAngle, computeAngleAsDouble, dragResizeMove, draw, erase, getAttributeAsBoolean, getAttributeAsDate, getAttributeAsDouble, getAttributeAsElement, getAttributeAsFloat, getAttributeAsInt, getAttributeAsJavaScriptObject, getAttributeAsMap, getAttributeAsString, getBoundingBox, getBoundingBoxAsDouble, getById, getByJSObject, getCanDrag, getCanHover, getCanvasAutoChild, getContextMenu, getCornerResizeKnob, getCursor, getDestroyed, getDestroying, getDragStartDistance, getDrawGroup, getDrawItemAutoChild, getDrawPane, getEditProxyConstructor, getEndArrow, getEndKnob, getEventOpaque, getFillColor, getFillGradient, getFillGradientAsString, getFillOpacity, getFormItemAutoChild, getHoverDelay, getHoverHTML, getKeepInParentRect, getKnobs, getLineCap, getLineColor, getLineOpacity, getLinePattern, getLineWidth, getMoveKnob, getMoveKnobOffset, getMoveKnobPoint, getPageLeft, getPageTop, getPaletteDefaults, getPrompt, getProportionalResizeModifiers, getProportionalResizing, getRef, getResizeBoundingBox, getResizeBoundingBoxAsDouble, getResizeKnobPoints, getResizeOutline, getResizeViaLocalTransformOnly, getRotateKnob, getRotation, getRotationAsDouble, getScale, getShadow, getShowHover, getShowResizeOutline, getShowTitleLabelBackground, getSideResizeKnob, getStartArrow, getStartKnob, getSvgString, getTitleAutoFit, getTitleAutoFitMargin, getTitleAutoFitRotationMode, getTitleLabel, getTitleLabelBackground, getTitleLabelPadding, getTitleRotationMode, getTranslate, getUnderlyingGWTCanvas, getUseSimpleTransform, getXShearFactor, getYShearFactor, getZIndex, hide, hideAllKnobs, hideKnobs, hideKnobs, hover, isInBounds, isPointInPath, resizeBy, resizeTo, rotateBy, rotateTo, scaleBy, scaleTo, sendToBack, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAutoChildConstructor, setAutoChildProperties, setAutoChildProperties, setAutoChildProperties, setAutoChildProperties, setAutoChildVisibility, setCanDrag, setCanHover, setCenterPoint, setContextMenu, setCursor, setDefaultProperties, setDragStartDistance, setDrawGroup, setDrawPane, setEditProxyConstructor, setEndArrow, setEventOpaque, setFillColor, setFillGradient, setFillGradient, setFillOpacity, setHoverDelay, setKeepInParentRect, setKeepInParentRect, setKnobs, setLineCap, setLineColor, setLineOpacity, setLinePattern, setLineWidth, setLogicalStructure, setMoveKnobOffset, setMoveKnobPoint, setPrompt, setPropertyValue, setProportionalResizeModifiers, setProportionalResizing, setResizeKnobPoints, setResizeViaLocalTransformOnly, setRotation, setRotation, setScale, setShadow, setShapeData, setShowHover, setShowResizeOutline, setShowTitleLabelBackground, setStartArrow, setTitleAutoFit, setTitleAutoFitMargin, setTitleAutoFitRotationMode, setTitleLabelPadding, setTitleRotationMode, setTranslate, setUseSimpleTransform, setXShearFactor, setYShearFactor, setZIndex, show, showAllKnobs, showKnobs, showKnobs, supportsEndArrow, supportsStartArrow

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

addDrawHandler, applyFactoryProperties, completeCreation, destroy, doAddHandler, doInit, doOnRender, equals, error, errorIfNotCreated, getAttribute, getAttributeAsDateArray, getAttributeAsFloatArray, getAttributeAsIntArray, getAttributeAsRecord, getAttributeAsStringArray, getClassName, getConfig, getDOM, getHandlerCount, getID, getInnerHTML, getJsObj, getOrCreateJsObj, getScClassName, hasAutoAssignedID, hashCode, initNativeObject, internalSetID, internalSetID, isConfigOnly, isCreated, isDrawn, isFactoryCreated, onBind, onDestroy, onDraw, onInit, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setConfig, setConfigOnly, setDefaultProperties, setDragTracker, setFactoryCreated, setHtmlElement, setID, setJavaScriptObject, setLogicalStructure, 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, onAttach, onBrowserEvent, onDetach, onLoad, onUnload, removeFromParent, setLayoutData, sinkEvents, unsinkEvents

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

addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, resolvePotentialElement, setElement, setElement, setHeight, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setVisible, setVisible, setWidth, 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

DrawImage

public DrawImage()

DrawImage

public DrawImage(com.google.gwt.core.client.JavaScriptObject jsObj)

Method Detail

getOrCreateRef

public static DrawImage 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

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. For usage tips on this param, see SGWTProperties.

See Also:

AutoChildUsage

create

protected com.google.gwt.core.client.JavaScriptObject create()

Overrides:

create in class DrawItem

setHeight

public void setHeight(int height)

Height in pixels relative to the local coordinate system.

If this method is called after the component has been drawn/initialized: Set the height of the drawImage.

Parameters:

height - new height. Default value is 16

getHeight

public int getHeight()

Height in pixels relative to the local coordinate system.

Returns:

Current height value. Default value is 16

getHeightAsDouble

public double getHeightAsDouble()

Height in pixels relative to the local coordinate system.

Returns:

Current height value. Default value is 16

setLeft

public void setLeft(int left)

Left coordinate in pixels relative to the local coordinate system.

If this method is called after the component has been drawn/initialized: Set the left coordinate of the drawImage.

Parameters:

left - new left coordinate. Default value is 0

getLeft

public int getLeft()

Left coordinate in pixels relative to the local coordinate system.

Returns:

Current left value. Default value is 0

getLeftAsDouble

public double getLeftAsDouble()

Left coordinate in pixels relative to the local coordinate system.

Returns:

Current left value. Default value is 0

setSrc

public void setSrc(java.lang.String src)

URL to the image file.

If this method is called after the component has been drawn/initialized: Change the URL of the image displayed.

Parameters:

src - new URL. Default value is "blank.png"

See Also:

URL

getSrc

public java.lang.String getSrc()

URL to the image file.

Returns:

Current src value. Default value is "blank.png"

See Also:

URL

setTitle

public void setTitle(java.lang.String title)
              throws java.lang.IllegalStateException

Title (tooltip hover text) for this image.

Overrides:

setTitle in class DrawItem

Parameters:

title - New title value. Default value is null

Throws:

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

See Also:

DrawItem.setTitleRotationMode(com.smartgwt.client.types.TitleRotationMode)

getTitle

public java.lang.String getTitle()

Title (tooltip hover text) for this image.

Overrides:

getTitle in class DrawItem

Returns:

Current title value. Default value is null

See Also:

DrawItem.getTitleRotationMode()

setTop

public void setTop(int top)

Top coordinate in pixels relative to the local coordinate system.

If this method is called after the component has been drawn/initialized: Set the top coordinate of the drawImage.

Parameters:

top - new top coordinate. Default value is 0

getTop

public int getTop()

Top coordinate in pixels relative to the local coordinate system.

Returns:

Current top value. Default value is 0

getTopAsDouble

public double getTopAsDouble()

Top coordinate in pixels relative to the local coordinate system.

Returns:

Current top value. Default value is 0

setUseMatrixFilter

public void setUseMatrixFilter(java.lang.Boolean useMatrixFilter)
                        throws java.lang.IllegalStateException

Configures whether a Matrix filter is used to render this DrawImage in Internet Explorer 6-8.

With the default of null, matrix filters may be used unless neverUseFilters has been set. When set explicitly to true, matrix filters may be used even if neverUseFilters is true.

This setting exists due to platform limitations in Internet Explorer where it is impossible to implement shearing transforms on an image without a matrix filter. Shear can arise by:

• specifying a nonzero xShearFactor or yShearFactor,
• specifying a nonuniform scale (where the scale values along the x- and y-dimensions are not equal) and a nonzero rotation, or
• using KnobType.RESIZE control knobs on a rotated DrawImage.

When prohibited from using a matrix filter, DrawImage will ignore the shearing components of its local transform. If any of the above conditions are met then the DrawImage might not be drawn correctly. Setting useMatrixFilter to true avoids this possibility but it also suffers from a range of side-effects mentioned here.

Parameters:

useMatrixFilter - New useMatrixFilter value. 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

getUseMatrixFilter

public java.lang.Boolean getUseMatrixFilter()

Configures whether a Matrix filter is used to render this DrawImage in Internet Explorer 6-8.

With the default of null, matrix filters may be used unless neverUseFilters has been set. When set explicitly to true, matrix filters may be used even if neverUseFilters is true.

This setting exists due to platform limitations in Internet Explorer where it is impossible to implement shearing transforms on an image without a matrix filter. Shear can arise by:

• specifying a nonzero xShearFactor or yShearFactor,
• specifying a nonuniform scale (where the scale values along the x- and y-dimensions are not equal) and a nonzero rotation, or
• using KnobType.RESIZE control knobs on a rotated DrawImage.

When prohibited from using a matrix filter, DrawImage will ignore the shearing components of its local transform. If any of the above conditions are met then the DrawImage might not be drawn correctly. Setting useMatrixFilter to true avoids this possibility but it also suffers from a range of side-effects mentioned here.

Returns:

Current useMatrixFilter value. Default value is null

See Also:

IEFilters overview and related methods

setWidth

public void setWidth(int width)

Width in pixels relative to the local coordinate system.

If this method is called after the component has been drawn/initialized: Set the width of the drawImage.

Parameters:

width - new width. Default value is 16

getWidth

public int getWidth()

Width in pixels relative to the local coordinate system.

Returns:

Current width value. Default value is 16

getWidthAsDouble

public double getWidthAsDouble()

Width in pixels relative to the local coordinate system.

Returns:

Current width value. Default value is 16

getCenter

public Point getCenter()

Get the center point of the image.

Overrides:

getCenter in class DrawItem

Returns:

the center point

moveBy

public void moveBy(int dX,
                   int dY)

Move the drawImage by the specified delta

Overrides:

moveBy in class DrawItem

Parameters:

dX - number of pixels to move horizontally

dY - number of pixels to move vertically

moveTo

public void moveTo(java.lang.Integer left,
                   java.lang.Integer top)

Move the drawImage to the specified position

Overrides:

moveTo in class DrawItem

Parameters:

left - new left coordinate

top - new top coordinate

setRect

public void setRect(java.lang.Integer left,
                    java.lang.Integer top,
                    java.lang.Integer width,
                    java.lang.Integer height)

Updates the drawImage to match the specified coordinates and size in local coordinates.

Parameters:

left - new left coordinate

top - new top coordinate

width - new width

height - new height

setDefaultProperties

public static void setDefaultProperties(DrawImage drawImageProperties)

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:

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

See Also:

SGWTProperties

setLogicalStructure

public com.smartgwt.logicalstructure.core.LogicalStructureObject setLogicalStructure(com.smartgwt.logicalstructure.widgets.drawing.DrawImageLogicalStructure 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 DrawItem