com.smartgwt.client.widgets.drawing

Class DrawLine

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.DrawLine

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 DrawLine
extends DrawItem

DrawItem subclass to render line segments.

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
DrawLine()
DrawLine(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 midpoint of the line.
int	getEndLeft() Ending left coordinate of the line.
double	getEndLeftAsDouble() Ending left coordinate of the line.
Point	getEndPoint() End point of the line
int	getEndTop() Ending top coordinate of the line.
double	getEndTopAsDouble() Ending top coordinate of the line.
KnobType[]	getKnobs() Array of control knobs to display for this item.
com.smartgwt.logicalstructure.core.LogicalStructureObject	getLogicalStructure() Getter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
static DrawLine	getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)
boolean	getShowTitleLabelBackground() If the titleLabel is showing, should the titleLabelBackground be created and placed behind the titleLabel?
int	getStartLeft() Starting left coordinate of the line.
double	getStartLeftAsDouble() Starting left coordinate of the line.
Point	getStartPoint() Start point of the line
int	getStartTop() Starting top coordinate of the line.
double	getStartTopAsDouble() Starting top coordinate of the line.
TitleRotationMode	getTitleRotationMode() The mode in which the titleLabel (if shown) is rotated with this draw item.
boolean	isPointInPath(int x, int y) Returns true if the given point in the drawing coordinate system is within this DrawItem's shape, taking into account local transforms.
void	moveBy(int left, int top) Move both the start and end points of the line by a relative amount.
void	moveStartPointTo(java.lang.Integer left, java.lang.Integer top) Move both the start and end points of the line such that the startPoint ends up at the specified coordinate and the line length and angle are unchanged.
static void	setDefaultProperties(DrawLine drawLineProperties) Class level method to set the default properties of this class.
void	setEndLeft(int endLeft) Ending left coordinate of the line.
void	setEndPoint(Point endPoint) End point of the line If this method is called after the component has been drawn/initialized: Update the endPoint
void	setEndTop(int endTop) Ending top coordinate of the line.
void	setKnobs(KnobType... knobs) Array of control knobs to display for this item.
com.smartgwt.logicalstructure.core.LogicalStructureObject	setLogicalStructure(com.smartgwt.logicalstructure.widgets.drawing.DrawLineLogicalStructure s) Setter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
void	setShowTitleLabelBackground(boolean showTitleLabelBackground) If the titleLabel is showing, should the titleLabelBackground be created and placed behind the titleLabel?
void	setStartLeft(int startLeft) Starting left coordinate of the line.
void	setStartPoint(Point startPoint) Start point of the line If this method is called after the component has been drawn/initialized: Update the startPoint
void	setStartTop(int startTop) Starting top coordinate of the line.
void	setTitleRotationMode(TitleRotationMode titleRotationMode) The mode in which the titleLabel (if shown) is rotated with this draw item.

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, 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, getSideResizeKnob, getStartArrow, getStartKnob, getSvgString, getTitle, getTitleAutoFit, getTitleAutoFitMargin, getTitleAutoFitRotationMode, getTitleLabel, getTitleLabelBackground, getTitleLabelPadding, getTranslate, getUnderlyingGWTCanvas, getUseSimpleTransform, getXShearFactor, getYShearFactor, getZIndex, hide, hideAllKnobs, hideKnobs, hideKnobs, hover, isInBounds, moveTo, 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, setLineCap, setLineColor, setLineOpacity, setLinePattern, setLineWidth, setLogicalStructure, setMoveKnobOffset, setMoveKnobPoint, setPrompt, setPropertyValue, setProportionalResizeModifiers, setProportionalResizing, setResizeKnobPoints, setResizeViaLocalTransformOnly, setRotation, setRotation, setScale, setShadow, setShapeData, setShowHover, setShowResizeOutline, setStartArrow, setTitle, setTitleAutoFit, setTitleAutoFitMargin, setTitleAutoFitRotationMode, setTitleLabelPadding, 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

DrawLine

public DrawLine()

DrawLine

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

Method Detail

getOrCreateRef

public static DrawLine 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

setEndLeft

public void setEndLeft(int endLeft)
                throws java.lang.IllegalStateException

Ending left coordinate of the line. Overrides left coordinate of endPoint if both are set.

Parameters:

endLeft - New endLeft value. Default value is 100

Throws:

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

getEndLeft

public int getEndLeft()

Ending left coordinate of the line. Overrides left coordinate of endPoint if both are set.

Returns:

Current endLeft value. Default value is 100

getEndLeftAsDouble

public double getEndLeftAsDouble()

Ending left coordinate of the line. Overrides left coordinate of endPoint if both are set.

Returns:

Current endLeft value. Default value is 100

setEndPoint

public void setEndPoint(Point endPoint)

End point of the line

If this method is called after the component has been drawn/initialized: Update the endPoint

Parameters:

endPoint - left coordinate for end point, in pixels. Default value is [100,100]

getEndPoint

public Point getEndPoint()

End point of the line

Returns:

Current endPoint value. Default value is [100,100]

setEndTop

public void setEndTop(int endTop)
               throws java.lang.IllegalStateException

Ending top coordinate of the line. Overrides top coordinate of endPoint if both are set.

Parameters:

endTop - New endTop value. Default value is 100

Throws:

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

getEndTop

public int getEndTop()

Ending top coordinate of the line. Overrides top coordinate of endPoint if both are set.

Returns:

Current endTop value. Default value is 100

getEndTopAsDouble

public double getEndTopAsDouble()

Ending top coordinate of the line. Overrides top coordinate of endPoint if both are set.

Returns:

Current endTop value. Default value is 100

setKnobs

public void setKnobs(KnobType... knobs)
              throws java.lang.IllegalStateException

Array of control knobs to display for this item. Each KnobType specified in this will turn on UI element(s) allowing the user to manipulate this DrawLine. To update the set of knobs at runtime use DrawItem.showKnobs() and DrawItem.hideKnobs().

DrawLine supports the KnobType.STARTPOINT, KnobType.ENDPOINT, and KnobType.MOVE knob types.

Overrides:

setKnobs in class DrawItem

Parameters:

knobs - New knobs value. Default value is null

Throws:

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

getKnobs

public KnobType[] getKnobs()

Array of control knobs to display for this item. Each KnobType specified in this will turn on UI element(s) allowing the user to manipulate this DrawLine. To update the set of knobs at runtime use DrawItem.showKnobs() and DrawItem.hideKnobs().

DrawLine supports the KnobType.STARTPOINT, KnobType.ENDPOINT, and KnobType.MOVE knob types.

Overrides:

getKnobs in class DrawItem

Returns:

Current knobs value. Default value is null

setShowTitleLabelBackground

public void setShowTitleLabelBackground(boolean showTitleLabelBackground)
                                 throws java.lang.IllegalStateException

If the titleLabel is showing, should the titleLabelBackground be created and placed behind the titleLabel?

This defaults to true for DrawSectors and shapes that are not commonly filled (e.g. DrawLines).

Note : This is an advanced setting

Overrides:

setShowTitleLabelBackground in class DrawItem

Parameters:

showTitleLabelBackground - New showTitleLabelBackground value. Default value is true

Throws:

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

getShowTitleLabelBackground

public boolean getShowTitleLabelBackground()

If the titleLabel is showing, should the titleLabelBackground be created and placed behind the titleLabel?

This defaults to true for DrawSectors and shapes that are not commonly filled (e.g. DrawLines).

Overrides:

getShowTitleLabelBackground in class DrawItem

Returns:

Current showTitleLabelBackground value. Default value is true

setStartLeft

public void setStartLeft(int startLeft)
                  throws java.lang.IllegalStateException

Starting left coordinate of the line. Overrides left coordinate of startPoint if both are set.

Parameters:

startLeft - New startLeft value. Default value is 0

Throws:

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

getStartLeft

public int getStartLeft()

Starting left coordinate of the line. Overrides left coordinate of startPoint if both are set.

Returns:

Current startLeft value. Default value is 0

getStartLeftAsDouble

public double getStartLeftAsDouble()

Starting left coordinate of the line. Overrides left coordinate of startPoint if both are set.

Returns:

Current startLeft value. Default value is 0

setStartPoint

public void setStartPoint(Point startPoint)

Start point of the line

If this method is called after the component has been drawn/initialized: Update the startPoint

Parameters:

startPoint - left coordinate for start point, in pixels. Default value is [0,0]

getStartPoint

public Point getStartPoint()

Start point of the line

Returns:

Current startPoint value. Default value is [0,0]

setStartTop

public void setStartTop(int startTop)
                 throws java.lang.IllegalStateException

Starting top coordinate of the line. Overrides top coordinate of startPoint if both are set.

Parameters:

startTop - New startTop value. Default value is 0

Throws:

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

getStartTop

public int getStartTop()

Starting top coordinate of the line. Overrides top coordinate of startPoint if both are set.

Returns:

Current startTop value. Default value is 0

getStartTopAsDouble

public double getStartTopAsDouble()

Starting top coordinate of the line. Overrides top coordinate of startPoint if both are set.

Returns:

Current startTop value. Default value is 0

setTitleRotationMode

public void setTitleRotationMode(TitleRotationMode titleRotationMode)
                          throws java.lang.IllegalStateException

The mode in which the titleLabel (if shown) is rotated with this draw item.

Note : This is an advanced setting

Overrides:

setTitleRotationMode in class DrawItem

Parameters:

titleRotationMode - New titleRotationMode value. Default value is "withLineAlwaysUp"

Throws:

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

See Also:

DrawItem.setTitle(java.lang.String)

getTitleRotationMode

public TitleRotationMode getTitleRotationMode()

The mode in which the titleLabel (if shown) is rotated with this draw item.

Overrides:

getTitleRotationMode in class DrawItem

Returns:

Current titleRotationMode value. Default value is "withLineAlwaysUp"

See Also:

DrawItem.getTitle()

getCenter

public Point getCenter()

Get the midpoint of the line.

Overrides:

getCenter in class DrawItem

Returns:

the midpoint

isPointInPath

public boolean isPointInPath(int x,
                             int y)

Returns true if the given point in the drawing coordinate system is within this DrawItem's shape, taking into account local transforms.

Overrides:

isPointInPath in class DrawItem

Parameters:

x - X coordinate of the test point.

y - Y coordinate of the test point.

Returns:

moveBy

public void moveBy(int left,
                   int top)

Move both the start and end points of the line by a relative amount.

Overrides:

moveBy in class DrawItem

Parameters:

left - change to left coordinate in pixels

top - change to top coordinate in pixels

moveStartPointTo

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

Move both the start and end points of the line such that the startPoint ends up at the specified coordinate and the line length and angle are unchanged.

Parameters:

left - new left coordinate in pixels

top - new top coordinate in pixels

setDefaultProperties

public static void setDefaultProperties(DrawLine drawLineProperties)

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:

drawLineProperties - 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.DrawLineLogicalStructure 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