diva.canvas.interactor
Class PathManipulator

java.lang.Object
  diva.canvas.AbstractFigure
      diva.canvas.AbstractFigureContainer
          diva.canvas.FigureDecorator
              diva.canvas.interactor.Manipulator
                  diva.canvas.interactor.PathManipulator

All Implemented Interfaces:

CanvasComponent, Figure, FigureContainer, FigureSet, VisibleComponent, UserObjectContainer

public class PathManipulator
extends Manipulator

A manipulator which attaches grab handles to the sites of the child figure. It renders the grab handles and gives them a chance to intercept picks.

Version:

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

Author:

John Reekie, Michael Shilman

Nested Class Summary

private static class

PathManipulator.Resizer An interactor class that changes a vertex of the child figure and triggers a repaint.

Field Summary

private PathGeometry

_geometry The path geometry

Constructor Summary

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

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

Method Summary

private PathGeometry	getGeometry() Return the geometry of this manipulator
FigureDecorator	newInstance(Figure f) Create a new instance of this manipulator.
void	refresh() Refresh the geometry.
void	setChild(Figure f) Set the child figure.

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

_geometry

private PathGeometry _geometry

The path geometry

Constructor Detail

PathManipulator

public PathManipulator()

Construct a new manipulator that uses rectangular grab-handles.

PathManipulator

public PathManipulator(GrabHandleFactory f)

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

Method Detail

getGeometry

private PathGeometry getGeometry()

Return the geometry of this manipulator

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.

Specified by:

newInstance in class FigureDecorator

refresh

public void refresh()

Refresh the geometry.

Specified by:

refresh in class Manipulator

setChild

public void setChild(Figure f)

Set the child figure. If we have any grab-handles, lose them. Then get a path geometry object set on this figure (the manipulator, not the child) and create grab-handles on it.

Overrides:

setChild in class FigureDecorator