diva.canvas.connector
Class ArcManipulator

java.lang.Object
  diva.canvas.AbstractFigure
      diva.canvas.AbstractFigureContainer
          diva.canvas.FigureDecorator
              diva.canvas.interactor.Manipulator
                  diva.canvas.connector.ConnectorManipulator
                      diva.canvas.connector.ArcManipulator

All Implemented Interfaces:

CanvasComponent, Figure, FigureContainer, FigureSet, VisibleComponent, UserObjectContainer

public class ArcManipulator
extends ConnectorManipulator

A manipulator for arc connectors. In addition to the grab handles at the ends of the connector, it attaches a handle in the center of the connector so that the connector can be reshaped.

Version:

$Id: ArcManipulator.java 38798 2005-07-08 20:00:01Z cxh $

Author:

John Reekie, Edward A. Lee

Nested Class Summary

Nested classes/interfaces inherited from class diva.canvas.connector.ConnectorManipulator

ConnectorManipulator.TargetHighlighter

Field Summary

private GrabHandle

_midpointHandle The handle at the midpoint of the arc.

Fields inherited from class diva.canvas.connector.ConnectorManipulator

_connectorTarget, _layerMotionListener, _targetHighlighter, _targetProperty, _targetPropertyValue

Constructor Summary

ArcManipulator()
Construct a new manipulator that uses rectangular grab-handles.

ArcManipulator(GrabHandleFactory f)
Construct a new manipulator using the given grab-handle factory.

Method Summary

protected void	_createGrabHandles(Connector connector) Clear the current grab handles and create one for each of the head and tail sites, plus an additional one for the center of the arc.
FigureDecorator	newInstance(Figure f) Create a new instance of this manipulator.

Methods inherited from class diva.canvas.connector.ConnectorManipulator

addConnectorListener, addLayerMotionListener, getConnectorTarget, getHeadHandle, getSnapHalo, getTailHandle, getTargetHighlighter, refresh, removeConnectorListener, removeLayerMotionListener, setChild, setConnectorTarget, setSnapHalo, setTargetHighlighter, setTargetProperty

Methods inherited from class diva.canvas.interactor.Manipulator

addGrabHandle, clearGrabHandles, getBounds, getGrabHandleFactory, getHandleInteractor, isRepainting, paint, pick, relocateGrabHandles, removeGrabHandle, repaint, repaint, repaintAlready, setGrabHandleFactory, setHandleFilter, setHandleInteractor, setRepainting

Methods inherited from class diva.canvas.FigureDecorator

add, contains, figures, figuresFromBack, figuresFromFront, getChild, getContainer, getDecoratedFigure, getFigureCount, getShape, hit, remove, replaceChild, transform, translate

Methods inherited from class diva.canvas.AbstractFigureContainer

decorate, pick, undecorate

Methods inherited from class diva.canvas.AbstractFigure

contains, getInteractor, getLayer, getOrigin, getParent, getToolTipText, getTransformContext, getUserObject, intersects, isVisible, paint, setInteractor, setParent, setToolTipText, setUserObject, setVisible

Methods inherited from class java.lang.Object

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

Methods inherited from interface diva.canvas.VisibleComponent

isVisible, paint, setVisible

Methods inherited from interface diva.canvas.CanvasComponent

getParent, getTransformContext

Field Detail

_midpointHandle

private GrabHandle _midpointHandle

The handle at the midpoint of the arc.

Constructor Detail

ArcManipulator

public ArcManipulator()

Construct a new manipulator that uses rectangular grab-handles.

ArcManipulator

public ArcManipulator(GrabHandleFactory f)

Construct a new manipulator using the given grab-handle factory.

Method Detail

newInstance

public FigureDecorator newInstance(Figure f)

Create a new instance of this manipulator. The new instance will have the same grab handle, and interactor for grab-handles, as this one.

Overrides:

newInstance in class ConnectorManipulator

_createGrabHandles

protected void _createGrabHandles(Connector connector)

Clear the current grab handles and create one for each of the head and tail sites, plus an additional one for the center of the arc.

Overrides:

_createGrabHandles in class ConnectorManipulator

Parameters:

connector - The connector.