com.smartgwt.client.widgets.drawing

Class DrawCurve

java.lang.Object

com.smartgwt.client.core.BaseClass

com.smartgwt.client.widgets.drawing.DrawItem

com.smartgwt.client.widgets.drawing.DrawCurve

All Implemented Interfaces:

com.google.gwt.event.shared.HasHandlers, HasClickHandlers, HasDragMoveHandlers, HasDragResizeMoveHandlers, HasDragStartHandlers, HasDragStopHandlers, HasMouseDownHandlers, HasMouseMoveHandlers, HasMouseOutHandlers, HasMouseOverHandlers, HasMouseUpHandlers, HasMovedHandlers, HasResizedHandlers, HasShowContextMenuHandlers

Direct Known Subclasses:

DrawBlockConnector

public class DrawCurve
extends DrawItem

DrawItem that renders cubic bezier curves.

Field Summary

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

config, id, scClassName

Constructor Summary

Constructors

Constructor and Description
DrawCurve()
DrawCurve(com.google.gwt.core.client.JavaScriptObject jsObj)

Method Summary

Methods

Modifier and Type	Method and Description
com.google.gwt.core.client.JavaScriptObject	create()
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.
static DrawCurve	getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)
Point	getStartPoint() Start point of the curve
void	moveBy(int x, int y) Increment start, end and control points of this curve
void	moveTo(int x, int y) Sets start, end and control points of this curve
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.
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, addDragStartHandler, addDragStopHandler, addMouseDownHandler, addMouseMoveHandler, addMouseOutHandler, addMouseOverHandler, addMouseUpHandler, addMovedHandler, addResizedHandler, addShowContextMenuHandler, computeAngle, computeAngleAsDouble, dragResizeMove, draw, erase, getAttributeAsIntArray, getBoundingBox, getBoundingBoxAsDouble, getCanDrag, getCanHover, getContextMenu, getCursor, getDestroyed, getDestroying, getDragStartDistance, getDrawGroup, getDrawPane, getEndArrow, getEventOpaque, getFillColor, getFillGradient, getFillGradientAsString, getFillOpacity, getHoverDelay, getHoverHTML, getKeepInParentRect, getLineColor, getLineOpacity, getLinePattern, getLineWidth, getMoveKnobOffset, getMoveKnobPoint, getPageLeft, getPageTop, getPrompt, getRef, getResizeKnobPoints, getRotation, getRotationAsDouble, getScale, getShadow, getShowHover, getStartArrow, getSvgString, hide, hideKnobs, hideKnobs, hover, isInBounds, isPointInPath, resizeBy, resizeTo, rotateBy, rotateTo, scaleBy, scaleTo, setAttribute, setAttribute, setCanDrag, setCanHover, setContextMenu, setCursor, setDefaultProperties, setDragStartDistance, setDrawGroup, setDrawPane, setEndArrow, setEventOpaque, setFillColor, setFillGradient, setFillGradient, setFillOpacity, setHoverDelay, setKeepInParentRect, setKeepInParentRect, setLineColor, setLineOpacity, setLinePattern, setLineWidth, setMoveKnobOffset, setMoveKnobPoint, setPrompt, setResizeKnobPoints, setRotation, setRotation, setScale, setShadow, setShowHover, setStartArrow, show, showKnobs, showKnobs, supportsEndArrow, supportsStartArrow

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

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, hasAutoAssignedID, internalSetID, internalSetID, isCreated, onBind, onInit, registerID, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setConfig, 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

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)

create

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

Overrides:

create in class DrawItem

setControlPoint1

public void setControlPoint1(Point controlPoint1)

First cubic bezier control point.

If this method is called after the component has been drawn/initialized: Update the first cubic bezier 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:

Point

setControlPoint2

public void setControlPoint2(Point controlPoint2)

Second cubic bezier control point.

If this method is called after the component has been drawn/initialized: Update the second cubic bezier 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:

Point

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:

Point

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 - Default value is null

Throws:

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

KnobType...

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 - 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:

LineCap

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:

Point

getCenter

public Point getCenter()

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

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

moveTo

public void moveTo(int x,
          int y)

Sets start, end and control points of this curve

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