com.vividsolutions.jump.workbench.ui.renderer

Class ImageCachingRenderer

java.lang.Object

com.vividsolutions.jump.workbench.ui.renderer.ImageCachingRenderer

All Implemented Interfaces:

Renderer

Direct Known Subclasses:

ImageCachingFeatureCollectionRenderer, RasterImageRenderer, WMSLayerRenderer

public abstract class ImageCachingRenderer
extends java.lang.Object
implements Renderer

Nested Class Summary

Nested classes/interfaces inherited from interface com.vividsolutions.jump.workbench.ui.renderer.Renderer

Renderer.ContentDependendFactory, Renderer.Factory

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	cancelled
protected ThreadSafeImage	image
protected LayerViewPanel	panel
protected boolean	rendering

Constructor Summary

Constructors

Constructor and Description
ImageCachingRenderer(java.lang.Object contentID, LayerViewPanel panel)

Method Summary

Methods

Modifier and Type	Method and Description
void	cancel()
void	clearImageCache()
void	copyTo(java.awt.Graphics2D graphics)
java.lang.Runnable	createRunnable()
java.lang.Object	getContentID()
protected ThreadSafeImage	getImage()
boolean	isRendering()
protected abstract void	renderHook(ThreadSafeImage image)

Methods inherited from class java.lang.Object

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

Field Detail

cancelled

protected volatile boolean cancelled

image

protected volatile ThreadSafeImage image

panel

protected LayerViewPanel panel

rendering

protected volatile boolean rendering

Constructor Detail

ImageCachingRenderer

public ImageCachingRenderer(java.lang.Object contentID,
                    LayerViewPanel panel)

Method Detail

clearImageCache

public void clearImageCache()

Specified by:

clearImageCache in interface Renderer

isRendering

public boolean isRendering()

Specified by:

isRendering in interface Renderer

getContentID

public java.lang.Object getContentID()

Specified by:

getContentID in interface Renderer

Returns:

contentID which identifies this Renderer by what it draws

getImage

protected ThreadSafeImage getImage()

copyTo

public void copyTo(java.awt.Graphics2D graphics)

Specified by:

copyTo in interface Renderer

createRunnable

public java.lang.Runnable createRunnable()

Specified by:

createRunnable in interface Renderer

Returns:

null if no rendering work needs to be done

renderHook

protected abstract void renderHook(ThreadSafeImage image)
                            throws java.lang.Exception

Throws:

java.lang.Exception

cancel

public void cancel()

Specified by:

cancel in interface Renderer