org.icepdf.core.pobjects.graphics

Class ImageStreamReference

java.lang.Object

org.icepdf.core.pobjects.graphics.ImageReference

org.icepdf.core.pobjects.graphics.CachedImageReference

org.icepdf.core.pobjects.graphics.ImageStreamReference

All Implemented Interfaces:

java.util.concurrent.Callable<java.awt.image.BufferedImage>

public class ImageStreamReference
extends CachedImageReference

The ImageStreamReference class is a rudimentary Image Proxy which will try and decode the image data into an Buffered image using a worker thread. The intent is that the content parser will continue parsing the content stream while the worker thread handles the image decode work. However the drawImage method will block until the worker thread returns. So generally put not a true image proxy but we do get significantly faster load times with the current implementation.

Since:

5.0

Field Summary

Fields inherited from class org.icepdf.core.pobjects.graphics.ImageReference

futureTask, graphicsState, image, imageIndex, imageStream, parentPage, reference, resources, useProxy

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ImageStreamReference(ImageStream imageStream, GraphicsState graphicsState, Resources resources, int imageIndex, Page page)

Method Summary

Modifier and Type	Method and Description
java.awt.image.BufferedImage	call()
int	getHeight()
int	getWidth()

Methods inherited from class org.icepdf.core.pobjects.graphics.CachedImageReference

getImage

Methods inherited from class org.icepdf.core.pobjects.graphics.ImageReference

createImage, drawImage, getImageStream, isImage, notifyImagePageEvents, notifyPageImageLoadedEvent, notifyPageLoadingEnded

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageStreamReference

protected ImageStreamReference(ImageStream imageStream,
                               GraphicsState graphicsState,
                               Resources resources,
                               int imageIndex,
                               Page page)

Method Detail

getWidth

public int getWidth()

Specified by:

getWidth in class ImageReference

getHeight

public int getHeight()

Specified by:

getHeight in class ImageReference

call

public java.awt.image.BufferedImage call()