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JavaTM 2 Platform Standard Ed. 5.0 |
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java.lang.Objectjava.awt.image.FilteredImageSource
public class FilteredImageSource
This class is an implementation of the ImageProducer interface which takes an existing image and a filter object and uses them to produce image data for a new filtered version of the original image. Here is an example which filters an image by swapping the red and blue compents:
Image src = getImage("doc:///demo/images/duke/T1.gif");
ImageFilter colorfilter = new RedBlueSwapFilter();
Image img = createImage(new FilteredImageSource(src.getSource(),
colorfilter));
ImageProducer| Constructor Summary | |
|---|---|
FilteredImageSource(ImageProducer orig,
ImageFilter imgf)
Constructs an ImageProducer object from an existing ImageProducer and a filter object. |
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| Method Summary | |
|---|---|
void |
addConsumer(ImageConsumer ic)
Adds the specified ImageConsumer
to the list of consumers interested in data for the filtered image. |
boolean |
isConsumer(ImageConsumer ic)
Determines whether an ImageConsumer is on the list of consumers currently interested in data for this image. |
void |
removeConsumer(ImageConsumer ic)
Removes an ImageConsumer from the list of consumers interested in data for this image. |
void |
requestTopDownLeftRightResend(ImageConsumer ic)
Requests that a given ImageConsumer have the image data delivered one more time in top-down, left-right order. |
void |
startProduction(ImageConsumer ic)
Starts production of the filtered image. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public FilteredImageSource(ImageProducer orig,
ImageFilter imgf)
orig - the specified ImageProducerimgf - the specified ImageFilterImageFilter,
Component.createImage(java.awt.image.ImageProducer)| Method Detail |
|---|
public void addConsumer(ImageConsumer ic)
ImageConsumer
to the list of consumers interested in data for the filtered image.
An instance of the original ImageFilter
is created
(using the filter's getFilterInstance method)
to manipulate the image data
for the specified ImageConsumer.
The newly created filter instance
is then passed to the addConsumer method
of the original ImageProducer.
This method is public as a side effect
of this class implementing
the ImageProducer interface.
It should not be called from user code,
and its behavior if called from user code is unspecified.
addConsumer in interface ImageProduceric - the consumer for the filtered imageImageConsumerpublic boolean isConsumer(ImageConsumer ic)
This method is public as a side effect
of this class implementing
the ImageProducer interface.
It should not be called from user code,
and its behavior if called from user code is unspecified.
isConsumer in interface ImageProduceric - the specified ImageConsumer
ImageConsumerpublic void removeConsumer(ImageConsumer ic)
This method is public as a side effect
of this class implementing
the ImageProducer interface.
It should not be called from user code,
and its behavior if called from user code is unspecified.
removeConsumer in interface ImageProduceric - the specified ImageConsumerImageConsumerpublic void startProduction(ImageConsumer ic)
ImageConsumer
isn't already a consumer of the filtered image,
an instance of the original ImageFilter
is created
(using the filter's getFilterInstance method)
to manipulate the image data
for the ImageConsumer.
The filter instance for the ImageConsumer
is then passed to the startProduction method
of the original ImageProducer.
This method is public as a side effect
of this class implementing
the ImageProducer interface.
It should not be called from user code,
and its behavior if called from user code is unspecified.
startProduction in interface ImageProduceric - the consumer for the filtered imageImageConsumerpublic void requestTopDownLeftRightResend(ImageConsumer ic)
This method is public as a side effect
of this class implementing
the ImageProducer interface.
It should not be called from user code,
and its behavior if called from user code is unspecified.
requestTopDownLeftRightResend in interface ImageProduceric - the specified ImageConsumerImageConsumer
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JavaTM 2 Platform Standard Ed. 5.0 |
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Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.