com.smartgwt.client.widgets.drawing

Class DrawImage

java.lang.Object

com.smartgwt.client.core.BaseClass

com.smartgwt.client.widgets.drawing.DrawItem

com.smartgwt.client.widgets.drawing.DrawImage

All Implemented Interfaces:

HasHandlers, HasClickHandlers, HasDragMoveHandlers, HasDragResizeMoveHandlers, HasDragResizeStartHandlers, HasDragResizeStopHandlers, HasDragStartHandlers, HasDragStopHandlers, HasMouseDownHandlers, HasMouseMoveHandlers, HasMouseOutHandlers, HasMouseOverHandlers, HasMouseUpHandlers, HasMovedHandlers, HasResizedHandlers, HasShowContextMenuHandlers

public class DrawImage
extends DrawItem

DrawItem subclass to render embedded images.

Field Summary

Fields inherited from class com.smartgwt.client.core.BaseClass

config, factoryCreated, factoryProperties, id, scClassName

Constructor Summary

Constructors

Constructor and Description
DrawImage()
DrawImage(JavaScriptObject jsObj)

Method Summary

Methods

Modifier and Type	Method and Description
JavaScriptObject	create()
Point	getCenter() Get the center point of the image.
int	getHeight() Height in pixels.
int	getLeft() Left coordinate in pixels relative to the DrawPane.
static DrawImage	getOrCreateRef(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 DrawPane.
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.
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.
void	setLeft(int left) Left coordinate in pixels relative to the DrawPane.
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 DrawPane.
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.

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

addClickHandler, addDragMoveHandler, addDragResizeMoveHandler, addDragResizeStartHandler, addDragResizeStopHandler, addDragStartHandler, addDragStopHandler, addMouseDownHandler, addMouseMoveHandler, addMouseOutHandler, addMouseOverHandler, addMouseUpHandler, addMovedHandler, addResizedHandler, addShowContextMenuHandler, changeAutoChildDefaults, changeAutoChildDefaults, changeAutoChildDefaults, computeAngle, computeAngleAsDouble, dragResizeMove, draw, erase, getAttributeAsIntArray, getBoundingBox, getBoundingBoxAsDouble, 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, getPrompt, getProportionalResizeModifiers, getProportionalResizing, getRef, getResizeBoundingBox, getResizeBoundingBoxAsDouble, getResizeKnobPoints, getResizeOutline, getResizeViaLocalTransformOnly, getRotation, getRotationAsDouble, getScale, getShadow, getShowHover, getShowResizeOutline, getSideResizeKnob, getStartArrow, getStartKnob, getSvgString, getTranslate, getXShearFactor, getYShearFactor, hide, hideAllKnobs, hideKnobs, hideKnobs, hover, isInBounds, isPointInPath, resizeBy, resizeTo, rotateBy, rotateTo, scaleBy, scaleTo, 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, setMoveKnobOffset, setMoveKnobPoint, setPrompt, setPropertyValue, setProportionalResizeModifiers, setProportionalResizing, setResizeKnobPoints, setResizeViaLocalTransformOnly, setRotation, setRotation, setScale, setShadow, setShowHover, setShowResizeOutline, setStartArrow, setTranslate, setXShearFactor, setYShearFactor, show, showAllKnobs, showKnobs, showKnobs, supportsEndArrow, supportsStartArrow

Methods inherited from class com.smartgwt.client.core.BaseClass

applyFactoryProperties, asSGWTComponent, createJsObj, destroy, doAddHandler, doInit, error, error, errorIfNotCreated, fireEvent, getAttribute, getAttributeAsBoolean, getAttributeAsDate, getAttributeAsDouble, getAttributeAsElement, getAttributeAsFloat, getAttributeAsInt, getAttributeAsJavaScriptObject, getAttributeAsMap, getAttributeAsString, getAttributeAsStringArray, getClassName, getConfig, getHandlerCount, getID, getJsObj, getOrCreateJsObj, getScClassName, getTestInstance, hasAutoAssignedID, internalSetID, internalSetID, isCreated, isFactoryCreated, onBind, onInit, registerID, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setConfig, setFactoryCreated, setID, setJavaScriptObject, setProperty, setProperty, setProperty, setProperty, setScClassName

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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

fireEvent

Constructor Detail

DrawImage

public DrawImage()

DrawImage

public DrawImage(JavaScriptObject jsObj)

Method Detail

getOrCreateRef

public static DrawImage getOrCreateRef(JavaScriptObject jsObj)

create

public JavaScriptObject create()

Overrides:

create in class DrawItem

setHeight

public void setHeight(int height)

Height in pixels.

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.

Returns:

int

setLeft

public void setLeft(int left)

Left coordinate in pixels relative to the DrawPane.

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 DrawPane.

Returns:

int

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"

getSrc

public java.lang.String getSrc()

URL to the image file.

Returns:

String

setTitle

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

Title (tooltip hover text) for this image.

Parameters:

title - Default value is null

Throws:

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

getTitle

public java.lang.String getTitle()

Title (tooltip hover text) for this image.

Returns:

String

setTop

public void setTop(int top)

Top coordinate in pixels relative to the DrawPane.

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 DrawPane.

Returns:

int

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 - Default value is null

Throws:

java.lang.IllegalStateException - this property cannot be changed after the underlying 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:

Boolean

See Also:

IEFilters overview and related methods

setWidth

public void setWidth(int width)

Width in pixels.

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.

Returns:

int

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