org.apache.batik.bridge
Class RepaintManager

java.lang.Object
  |
  +--org.apache.batik.bridge.RepaintManager

public class RepaintManager

extends java.lang.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

java.awt.image.BufferedImage	getOffScreen() Returns the renderer's offscreen, i.e., the current state as rendered by the associated renderer.
void	setupRenderer(java.awt.geom.AffineTransform u2d, boolean dbr, java.awt.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.
java.util.List	updateRendering(java.util.List 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 java.util.List updateRendering(java.util.List areas)
                               throws java.lang.InterruptedException

Updates the rendering buffer.

Parameters:

aoi - The area of interest in the renderer space units.

Returns:

the list of the rectangles to repaint.

setupRenderer

public void setupRenderer(java.awt.geom.AffineTransform u2d,
                          boolean dbr,
                          java.awt.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 height - The offscreen buffer size.

getOffScreen

public java.awt.image.BufferedImage getOffScreen()

Returns the renderer's offscreen, i.e., the current state as rendered by the associated renderer.