Class DynamicRenderer

java.lang.Object

org.apache.batik.gvt.renderer.StaticRenderer

org.apache.batik.gvt.renderer.DynamicRenderer

All Implemented Interfaces:

ImageRenderer, Renderer

public class DynamicRenderer
extends StaticRenderer

Simple implementation of the Renderer that supports dynamic updates.

Field Summary

Fields inherited from class StaticRenderer

currentBaseRaster, currentOffScreen, currentRaster, defaultRenderingHints, isDoubleBuffered, lastCache, lastCR, offScreenHeight, offScreenWidth, renderingHints, rootCR, rootFilter, rootGN, usr2dev, workingBaseRaster, workingOffScreen, workingRaster

Constructor Summary

Constructors

Constructor	Description
DynamicRenderer()	Constructs a new dynamic renderer with the specified buffer image.
DynamicRenderer(RenderingHints rh, AffineTransform at)

Method Summary

Modifier and Type	Method	Description
void	flush(Rectangle r)	Flush a rectangle of cached image data.
void	flush(Collection areas)	Flush a list of rectangles of cached image data.
void	repaint(RectListManager devRLM)	Repaints the associated GVT tree under the list of areas.
protected CachableRed	setupCache(CachableRed img)
protected void	updateWorkingBuffers()	Internal method used to synchronize local state in response to various set methods.

Methods inherited from class StaticRenderer

clearOffScreen, dispose, flush, getOffScreen, getRenderingHints, getTransform, getTree, isDoubleBuffered, renderGNR, repaint, setDoubleBuffered, setRenderingHints, setTransform, setTree, updateOffScreen

Methods inherited from class Object

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

Constructor Details

DynamicRenderer

public DynamicRenderer()

Constructs a new dynamic renderer with the specified buffer image.

DynamicRenderer

public DynamicRenderer(RenderingHints rh,
 AffineTransform at)

Method Details

setupCache

protected CachableRed setupCache(CachableRed img)

Overrides:

setupCache in class StaticRenderer

flush

public void flush(Rectangle r)

Description copied from class: StaticRenderer

Flush a rectangle of cached image data.

Specified by:

flush in interface ImageRenderer

Overrides:

flush in class StaticRenderer

flush

public void flush(Collection areas)

Flush a list of rectangles of cached image data.

Specified by:

flush in interface ImageRenderer

Overrides:

flush in class StaticRenderer

updateWorkingBuffers

protected void updateWorkingBuffers()

Description copied from class: StaticRenderer

Internal method used to synchronize local state in response to various set methods.

Overrides:

updateWorkingBuffers in class StaticRenderer

repaint

public void repaint(RectListManager devRLM)

Repaints the associated GVT tree under the list of areas. If double buffered is true and this method completes cleanly it will set the result of the repaint as the image returned by getOffscreen otherwise the old image will still be returned. If double buffered is false it is possible some effects of the failed rendering will be visible in the image returned by getOffscreen.

Specified by:

repaint in interface Renderer

Overrides:

repaint in class StaticRenderer

Parameters:

devRLM - regions to be repainted, in the current user space coordinate system.