org.jhotdraw.contrib.zoom
Class ZoomUpdateStrategy

java.lang.Object
  org.jhotdraw.contrib.zoom.ZoomUpdateStrategy

All Implemented Interfaces:

java.io.Serializable, Painter

public class ZoomUpdateStrategy
extends java.lang.Object
implements Painter

A variant of the BufferedUpdateStrategy that handles clipping rectangles correctly in the presence of zooming.

Version:

<$CURRENT_VERSION$>

Author:

Andre Spiegel

See Also:

BufferedUpdateStrategy, Serialized Form

Field Summary

private int	fImageheight
private int	fImagewidth
private java.awt.Image	fOffscreen The offscreen image

Constructor Summary

ZoomUpdateStrategy()

Method Summary

void	draw(java.awt.Graphics g, DrawingView view) Draws the view contents.

Methods inherited from class java.lang.Object

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

Field Detail

fOffscreen

private transient java.awt.Image fOffscreen

The offscreen image

fImagewidth

private int fImagewidth

fImageheight

private int fImageheight

Constructor Detail

ZoomUpdateStrategy

public ZoomUpdateStrategy()

Method Detail

draw

public void draw(java.awt.Graphics g,
                 DrawingView view)

Draws the view contents.

Specified by:

draw in interface Painter