com.smartgwt.client.widgets.drawing

Class DrawCurve

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.DrawCurve

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

Direct Known Subclasses:

DrawBlockConnector

public class DrawCurve
extends DrawItem

DrawItem that renders cubic bezier curves.

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
DrawCurve()
DrawCurve(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()
DrawKnob	getC1Knob() If this item is showing KnobType.CONTROLPOINT1 control knobs, this attribute specifies the AutoChild for the DrawKnob for control point 1 of current drawCurve.
DrawKnob	getC2Knob() If this item is showing KnobType.CONTROLPOINT2 control knobs, this attribute specifies the AutoChild for the DrawKnob for control point 2 of current drawCurve.
Point	getCenter() Get the center point of the rectangle from the curve's startPoint to the endPoint.
Point	getControlPoint1() First cubic bezier control point.
Point	getControlPoint2() Second cubic bezier control point.
Point	getEndPoint() End point of the curve
KnobType[]	getKnobs() Array of control knobs to display for this item.
LineCap	getLineCap() Style of drawing the endpoints of a line.
com.smartgwt.logicalstructure.core.LogicalStructureObject	getLogicalStructure() Getter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
static DrawCurve	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?
Point	getStartPoint() Start point of the curve
void	moveBy(int x, int y) Increment start, end and control points of this curve
void	moveStartPointTo(java.lang.Integer x, java.lang.Integer y) Move the start point, end point, and control points of the curve such that the startPoint ends up at the specified coordinates and the shape of the curve is unchanged.
void	setControlPoint1(Point controlPoint1) First cubic bezier control point.
void	setControlPoint2(Point controlPoint2) Second cubic bezier control point.
static void	setDefaultProperties(DrawCurve drawCurveProperties) Class level method to set the default properties of this class.
void	setEndPoint(Point endPoint) End point of the curve If this method is called after the component has been drawn/initialized: Update the endPoint
void	setKnobs(KnobType... knobs) Array of control knobs to display for this item.
void	setLineCap(LineCap lineCap) Style of drawing the endpoints of a line.
com.smartgwt.logicalstructure.core.LogicalStructureObject	setLogicalStructure(com.smartgwt.logicalstructure.widgets.drawing.DrawCurveLogicalStructure 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	setStartPoint(Point startPoint) Start point of the curve If this method is called after the component has been drawn/initialized: Update the startPoint

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, 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, getTitleRotationMode, getTranslate, getUnderlyingGWTCanvas, getUseSimpleTransform, getXShearFactor, getYShearFactor, getZIndex, hide, hideAllKnobs, hideKnobs, hideKnobs, hover, isInBounds, isPointInPath, 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, 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, setTitleRotationMode, setTranslate, setUseSimpleTransform, setXShearFactor, setYShearFactor, setZIndex, show, showAllKnobs, showKnobs, showKnobs, supportsEndArrow, supportsStartArrow

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

addDrawHandler, addDynamicProperty, addDynamicProperty, addDynamicProperty, applyFactoryProperties, clearDynamicProperty, completeCreation, destroy, doAddHandler, doInit, doOnRender, equals, error, errorIfNotCreated, getAttribute, getAttributeAsDateArray, getAttributeAsFloatArray, getAttributeAsIntArray, getAttributeAsRecord, getAttributeAsStringArray, getClassName, getConfig, getDOM, getHandlerCount, getID, getInnerHTML, getJsObj, getOrCreateJsObj, getScClassName, hasAutoAssignedID, hasDynamicProperty, 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

DrawCurve

public DrawCurve()

DrawCurve

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

Method Detail

getOrCreateRef

public static DrawCurve 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

getC1Knob

public DrawKnob getC1Knob()
                   throws java.lang.IllegalStateException

If this item is showing KnobType.CONTROLPOINT1 control knobs, this attribute specifies the AutoChild for the DrawKnob for control point 1 of current drawCurve.

This component is an AutoChild named "c1Knob". For an overview of how to use and configure AutoChildren, see Using AutoChildren.

Returns:

Current c1Knob value. Default value is null

Throws:

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

getC2Knob

public DrawKnob getC2Knob()
                   throws java.lang.IllegalStateException

If this item is showing KnobType.CONTROLPOINT2 control knobs, this attribute specifies the AutoChild for the DrawKnob for control point 2 of current drawCurve.

This component is an AutoChild named "c2Knob". For an overview of how to use and configure AutoChildren, see Using AutoChildren.

Returns:

Current c2Knob value. Default value is null

Throws:

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

setControlPoint1

public void setControlPoint1(Point controlPoint1)

First cubic bezier control point.

If this method is called after the component has been drawn/initialized: Updates the first cubic Bézier control point.

Parameters:

controlPoint1 - left coordinate for control point, in pixels. Default value is [100,0]

getControlPoint1

public Point getControlPoint1()

First cubic bezier control point.

Returns:

Current controlPoint1 value. Default value is [100,0]

setControlPoint2

public void setControlPoint2(Point controlPoint2)

Second cubic bezier control point.

If this method is called after the component has been drawn/initialized: Updates the second cubic Bézier control point.

Parameters:

controlPoint2 - left coordinate for control point, in pixels. Default value is [0,100]

getControlPoint2

public Point getControlPoint2()

Second cubic bezier control point.

Returns:

Current controlPoint2 value. Default value is [0,100]

setEndPoint

public void setEndPoint(Point endPoint)

End point of the curve

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 curve

Returns:

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

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 DrawCurve. To update the set of knobs at runtime use DrawItem.showKnobs() and DrawItem.hideKnobs().

DrawCurve supports the KnobType.STARTPOINT, KnobType.ENDPOINT, KnobType.CONTROLPOINT1, and KnobType.CONTROLPOINT2 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

See Also:

DrawItem.setKnobs(com.smartgwt.client.types.KnobType...)

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 DrawCurve. To update the set of knobs at runtime use DrawItem.showKnobs() and DrawItem.hideKnobs().

DrawCurve supports the KnobType.STARTPOINT, KnobType.ENDPOINT, KnobType.CONTROLPOINT1, and KnobType.CONTROLPOINT2 knob types.

Overrides:

getKnobs in class DrawItem

Returns:

Current knobs value. Default value is null

See Also:

DrawItem.getKnobs()

setLineCap

public void setLineCap(LineCap lineCap)

Style of drawing the endpoints of a line.

Note that for dashed and dotted lines, the lineCap style affects each dash or dot.

Overrides:

setLineCap in class DrawItem

Parameters:

lineCap - New lineCap value. Default value is "butt"

getLineCap

public LineCap getLineCap()

Style of drawing the endpoints of a line.

Note that for dashed and dotted lines, the lineCap style affects each dash or dot.

Overrides:

getLineCap in class DrawItem

Returns:

Current lineCap value. Default value is "butt"

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

setStartPoint

public void setStartPoint(Point startPoint)

Start point of the curve

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 curve

Returns:

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

getCenter

public Point getCenter()

Get the center point of the rectangle from the curve's startPoint to the endPoint.

Overrides:

getCenter in class DrawItem

Returns:

the center point

moveBy

public void moveBy(int x,
                   int y)

Increment start, end and control points of this curve

Overrides:

moveBy in class DrawItem

Parameters:

x - new x coordinate in pixels

y - new y coordinate in pixels

moveStartPointTo

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

Move the start point, end point, and control points of the curve such that the startPoint ends up at the specified coordinates and the shape of the curve is unchanged.

Parameters:

x - new x coordinate in pixels

y - new y coordinate in pixels

setDefaultProperties

public static void setDefaultProperties(DrawCurve drawCurveProperties)

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:

drawCurveProperties - 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.DrawCurveLogicalStructure 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