diva.canvas.interactor
Class BoundedDragInteractor

java.lang.Object
  extended by diva.canvas.interactor.AbstractInteractor
      extended by diva.canvas.interactor.DragInteractor
          extended by diva.canvas.interactor.BoundedDragInteractor
All Implemented Interfaces:
LayerListener, LayerMotionListener, Interactor, EventListener

public class BoundedDragInteractor
extends DragInteractor

An interactor that drags its target only within a given rectangular region. An instance of this class sets itself up so that the dragged figures or items always remain within the given region. To do so, it creates an instance of BoundsConstraint that it attaches to itself, and overrides the setup() method to initialize the constraint according to the size of the target.

This interactor is intended more as an example of how to produce a customized drag-interactor than anything else.

Version:
$Revision: 1.6 $
Author:
John Reekie

Constructor Summary
BoundedDragInteractor(Rectangle2D bounds)
          Create an instance that keeps figures inside the given regio
 
Method Summary
 void setup(LayerEvent e)
          Adjust the bounds so that the bounding-box of the target stays within the region.
 
Methods inherited from class diva.canvas.interactor.DragInteractor
addLayerListener, appendConstraint, constrainPoint, fireLayerEvent, getSelectiveEnabled, getTargetArray, getX, getY, mouseDragged, mousePressed, mouseReleased, prependConstraint, removeLayerListener, setSelectiveEnabled, setTargetArray, targets, translate
 
Methods inherited from class diva.canvas.interactor.AbstractInteractor
accept, getMouseFilter, isConsuming, isEnabled, isMotionEnabled, mouseClicked, mouseEntered, mouseExited, mouseMoved, setConsuming, setEnabled, setMotionEnabled, setMouseFilter
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

BoundedDragInteractor

public BoundedDragInteractor(Rectangle2D bounds)
Create an instance that keeps figures inside the given regio

Method Detail

setup

public void setup(LayerEvent e)
Adjust the bounds so that the bounding-box of the target stays within the region.

Overrides:
setup in class DragInteractor


Copyright © 2015 Central Laboratory of the Research Councils. All Rights Reserved.