org.apache.batik.bridge
Class RepaintManager

java.lang.Object
  extended by org.apache.batik.bridge.RepaintManager

public class RepaintManager
extends Object

This class manages the rendering of a GVT tree.


Field Summary
protected  ImageRenderer renderer
          The renderer used to repaint the buffer.
 
Constructor Summary
RepaintManager(ImageRenderer r)
          Creates a new repaint manager.
 
Method Summary
 BufferedImage getOffScreen()
          Returns the renderer's offscreen, i.e., the current state as rendered by the associated renderer.
 void setupRenderer(AffineTransform u2d, boolean dbr, Shape aoi, int width, int height)
          Sets up the renderer so that it is ready to render for the new 'context' defined by the user to device transform, double buffering state, area of interest and width/height.
 Collection updateRendering(Collection areas)
          Updates the rendering buffer.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

renderer

protected ImageRenderer renderer
The renderer used to repaint the buffer.

Constructor Detail

RepaintManager

public RepaintManager(ImageRenderer r)
Creates a new repaint manager.

Method Detail

updateRendering

public Collection updateRendering(Collection areas)
                           throws InterruptedException
Updates the rendering buffer.

Parameters:
areas - The areas of interest in renderer space units.
Returns:
the list of the rectangles to repaint.
Throws:
InterruptedException

setupRenderer

public void setupRenderer(AffineTransform u2d,
                          boolean dbr,
                          Shape aoi,
                          int width,
                          int height)
Sets up the renderer so that it is ready to render for the new 'context' defined by the user to device transform, double buffering state, area of interest and width/height.

Parameters:
u2d - The user to device transform.
dbr - Whether the double buffering should be used.
aoi - The area of interest in the renderer space units.
width - The offscreen buffer width.
height - The offscreen buffer width.

getOffScreen

public BufferedImage getOffScreen()
Returns the renderer's offscreen, i.e., the current state as rendered by the associated renderer.



Copyright © 2008 Apache Software Foundation. All Rights Reserved.