com.neuron.app.tonto.ui

Class PNGImageProducer

java.lang.Object

com.neuron.app.tonto.ui.PNGImageProducer

All Implemented Interfaces:

java.awt.image.ImageProducer, java.lang.Runnable

public class PNGImageProducer
extends java.lang.Object
implements java.awt.image.ImageProducer, java.lang.Runnable

ImageProducer which produces an Image from a PNG image Note that making this implement the Runnable interface it but one way to handle the problems inherent with asynchronous image production. This class is provided more as a proof of concept, and sample implementation of the PNG decoder in Java.

Version:

0.88 14 May 1997

Author:

Jason Marshall

Constructor Summary

Constructors

Constructor and Description
PNGImageProducer(java.io.InputStream is)

Method Summary

Modifier and Type	Method and Description
void	addConsumer(java.awt.image.ImageConsumer ic)
boolean	isConsumer(java.awt.image.ImageConsumer ic) This method determines if a given ImageConsumer object is currently registered with this ImageProducer as one of its consumers.
void	removeConsumer(java.awt.image.ImageConsumer ic) Remove an ImageConsumer from the list of consumers interested in data for this image.
void	requestTopDownLeftRightResend(java.awt.image.ImageConsumer ic) Requests that a given ImageConsumer have the image data delivered one more time in top-down, left-right order.
void	run() Primary processing of Image data.
void	startProduction(java.awt.image.ImageConsumer ic) Adds an ImageConsumer to the list of consumers interested in data for this image, and immediately start delivery of the image data through the ImageConsumer interface.

Methods inherited from class java.lang.Object

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

Constructor Detail

PNGImageProducer

public PNGImageProducer(java.io.InputStream is)

Method Detail

addConsumer

public void addConsumer(java.awt.image.ImageConsumer ic)

Specified by:

addConsumer in interface java.awt.image.ImageProducer

isConsumer

public boolean isConsumer(java.awt.image.ImageConsumer ic)

This method determines if a given ImageConsumer object is currently registered with this ImageProducer as one of its consumers.

Specified by:

isConsumer in interface java.awt.image.ImageProducer

See Also:

ImageConsumer

removeConsumer

public void removeConsumer(java.awt.image.ImageConsumer ic)

Remove an ImageConsumer from the list of consumers interested in data for this image.

Specified by:

removeConsumer in interface java.awt.image.ImageProducer

See Also:

ImageConsumer

requestTopDownLeftRightResend

public void requestTopDownLeftRightResend(java.awt.image.ImageConsumer ic)

Requests that a given ImageConsumer have the image data delivered one more time in top-down, left-right order.

Specified by:

requestTopDownLeftRightResend in interface java.awt.image.ImageProducer

See Also:

ImageConsumer

run

public void run()

Primary processing of Image data.

Specified by:

run in interface java.lang.Runnable

startProduction

public void startProduction(java.awt.image.ImageConsumer ic)

Adds an ImageConsumer to the list of consumers interested in data for this image, and immediately start delivery of the image data through the ImageConsumer interface.

Specified by:

startProduction in interface java.awt.image.ImageProducer

See Also:

ImageConsumer