com.smartgwt.client.widgets.drawing

Class DrawLinePath

java.lang.Object

com.smartgwt.client.core.BaseClass

com.smartgwt.client.widgets.drawing.DrawItem

com.smartgwt.client.widgets.drawing.DrawLinePath

All Implemented Interfaces:

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

public class DrawLinePath
extends DrawItem

DrawItem subclass to render a connector between two points. If the points are aligned on one axis, this connector will draw as a straight line. If the points are offset on both axes and there is enough space, the connector will by default draw short horizontal segments from the start and end points, and a diagonal segment connecting the ends of these 'tail' segments. Connector style and orientation defaults may be changed through configuration.

Field Summary

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

config, factoryCreated, factoryProperties, id, scClassName

Constructor Summary

Constructors

Constructor and Description
DrawLinePath()
DrawLinePath(JavaScriptObject jsObj)

Method Summary

Methods

Modifier and Type	Method and Description
JavaScriptObject	create()
Point	getCenter() Get the center point of the line path.
ConnectorOrientation	getConnectorOrientation() The ConnectorOrientation controlling the orientation and behavior of this line's tail segments.
ConnectorStyle	getConnectorStyle() The ConnectorStyle controlling the presentation and behavior of this line's tail segments.
Point	getControlPoint1() The point at which the leading tail segment joins the connecting center segment.
Point	getControlPoint2() The point at which the trailing tail segment joins the connecting center segment.
ArrowStyle	getEndArrow() Style of arrowhead to draw at the end of the line or path.
int	getEndLeft() Ending left coordinate of the line.
Point	getEndPoint() End point of the line
int	getEndTop() Ending top coordinate of the line.
KnobType[]	getKnobs() Array of control knobs to display for this item.
static DrawLinePath	getOrCreateRef(JavaScriptObject jsObj)
int	getStartLeft() Starting left coordinate of the line.
Point	getStartPoint() Start point of the line
int	getStartTop() Starting top coordinate of the line.
int	getTailSize() Length of the horizontal/vertical "tail segments" between the start and end points of this DrawLinePath and the connecting center segment.
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) Moves the line path such that the startPoint ends up at the specified point.
void	setConnectorOrientation(ConnectorOrientation connectorOrientation) The ConnectorOrientation controlling the orientation and behavior of this line's tail segments.
void	setConnectorStyle(ConnectorStyle connectorStyle) The ConnectorStyle controlling the presentation and behavior of this line's tail segments.
void	setControlPoint1(Point controlPoint1) The point at which the leading tail segment joins the connecting center segment.
void	setControlPoint2(Point controlPoint2) The point at which the trailing tail segment joins the connecting center segment.
static void	setDefaultProperties(DrawLinePath drawLinePathProperties) Class level method to set the default properties of this class.
void	setEndArrow(ArrowStyle endArrow) Style of arrowhead to draw at the end of the line or path.
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.
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	setTailSize(int tailSize) Length of the horizontal/vertical "tail segments" between the start and end points of this DrawLinePath and the connecting center segment.

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, getEndKnob, getEventOpaque, getFillColor, getFillGradient, getFillGradientAsString, getFillOpacity, getFormItemAutoChild, getHoverDelay, getHoverHTML, getKeepInParentRect, 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, moveTo, resizeBy, resizeTo, rotateBy, rotateTo, scaleBy, scaleTo, setAttribute, setAttribute, setAutoChildConstructor, setAutoChildProperties, setAutoChildProperties, setAutoChildProperties, setAutoChildProperties, setAutoChildVisibility, setCanDrag, setCanHover, setCenterPoint, setContextMenu, setCursor, setDefaultProperties, setDragStartDistance, setDrawGroup, setDrawPane, setEditProxyConstructor, setEventOpaque, setFillColor, setFillGradient, setFillGradient, setFillOpacity, setHoverDelay, setKeepInParentRect, setKeepInParentRect, 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

DrawLinePath

public DrawLinePath()

DrawLinePath

public DrawLinePath(JavaScriptObject jsObj)

Method Detail

getOrCreateRef

public static DrawLinePath getOrCreateRef(JavaScriptObject jsObj)

create

public JavaScriptObject create()

Overrides:

create in class DrawItem

setConnectorOrientation

public void setConnectorOrientation(ConnectorOrientation connectorOrientation)
                             throws java.lang.IllegalStateException

The ConnectorOrientation controlling the orientation and behavior of this line's tail segments.

Parameters:

connectorOrientation - Default value is "auto"

Throws:

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

getConnectorOrientation

public ConnectorOrientation getConnectorOrientation()

The ConnectorOrientation controlling the orientation and behavior of this line's tail segments.

Returns:

ConnectorOrientation

setConnectorStyle

public void setConnectorStyle(ConnectorStyle connectorStyle)
                       throws java.lang.IllegalStateException

The ConnectorStyle controlling the presentation and behavior of this line's tail segments.

Parameters:

connectorStyle - Default value is "diagonal"

Throws:

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

getConnectorStyle

public ConnectorStyle getConnectorStyle()

The ConnectorStyle controlling the presentation and behavior of this line's tail segments.

Returns:

ConnectorStyle

setControlPoint1

public void setControlPoint1(Point controlPoint1)

The point at which the leading tail segment joins the connecting center segment.

If this method is called after the component has been drawn/initialized: Sets the coordinates of the controlPoint1 knob and by extension the coordinates of this DrawLinePath's leading tail segment.

Parameters:

controlPoint1 - left coordinate for start point, in pixels. Default value is null

getControlPoint1

public Point getControlPoint1()

The point at which the leading tail segment joins the connecting center segment.

Returns:

Point

setControlPoint2

public void setControlPoint2(Point controlPoint2)

The point at which the trailing tail segment joins the connecting center segment. Has no effect on lines with right angle ConnectorStyles.

If this method is called after the component has been drawn/initialized: Sets the coordinates of the controlPoint2 knob and by extension the coordinates of this DrawLinePath's trailing tail segment.

Parameters:

controlPoint2 - left coordinate for start point, in pixels. Default value is null

getControlPoint2

public Point getControlPoint2()

The point at which the trailing tail segment joins the connecting center segment. Has no effect on lines with right angle ConnectorStyles.

Returns:

Point

setEndArrow

public void setEndArrow(ArrowStyle endArrow)

Style of arrowhead to draw at the end of the line or path.

Overrides:

setEndArrow in class DrawItem

Parameters:

endArrow - Default value is "open", IRW

getEndArrow

public ArrowStyle getEndArrow()

Style of arrowhead to draw at the end of the line or path.

Overrides:

getEndArrow in class DrawItem

Returns:

ArrowStyle

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 - Default value is 0 , IRW

Throws:

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

getEndLeft

public int getEndLeft()

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

Returns:

int

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:

Point

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 - Default value is 0 , IRW

Throws:

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

getEndTop

public int getEndTop()

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

Returns:

int

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

DrawLinePath 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

See Also:

DrawItem.setKnobs(com.smartgwt.client.types.KnobType...), Diagramming Example

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

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

Overrides:

getKnobs in class DrawItem

Returns:

KnobType...

See Also:

DrawItem.getKnobs(), Diagramming Example

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 - Default value is 0 , IRW

Throws:

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

getStartLeft

public int getStartLeft()

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

Returns:

int

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:

Point

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 - Default value is 0 , IRW

Throws:

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

getStartTop

public int getStartTop()

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

Returns:

int

setTailSize

public void setTailSize(int tailSize)
                 throws java.lang.IllegalStateException

Length of the horizontal/vertical "tail segments" between the start and end points of this DrawLinePath and the connecting center segment.

Parameters:

tailSize - Default value is 30

Throws:

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

getTailSize

public int getTailSize()

Length of the horizontal/vertical "tail segments" between the start and end points of this DrawLinePath and the connecting center segment.

Returns:

int

getCenter

public Point getCenter()

Get the center point of the line path.

Overrides:

getCenter in class DrawItem

Returns:

the center point

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)

Moves the line path such that the startPoint ends up at the specified point.

Parameters:

left - new left coordinate in pixels

top - new top coordinate in pixels

setDefaultProperties

public static void setDefaultProperties(DrawLinePath drawLinePathProperties)

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:

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