- All Implemented Interfaces:
- ImageProducer
FilteredImageSource is safe for use by multiple threads.
 Here is an example which filters an image by swapping the red and
 blue components:
 
      Image src = getImage("doc:///demo/images/duke/T1.gif");
      ImageFilter colorfilter = new RedBlueSwapFilter();
      Image img = createImage(new FilteredImageSource(src.getSource(),
                                                      colorfilter));
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Constructor SummaryConstructorsConstructorDescriptionFilteredImageSource(ImageProducer orig, ImageFilter imgf) Constructs an ImageProducer object from an existing ImageProducer and a filter object.
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Method SummaryModifier and TypeMethodDescriptionvoidAdds the specifiedImageConsumerto the list of consumers interested in data for the filtered image.booleanDetermines whether an ImageConsumer is on the list of consumers currently interested in data for this image.voidRemoves an ImageConsumer from the list of consumers interested in data for this image.voidRequests that a given ImageConsumer have the image data delivered one more time in top-down, left-right order.voidStarts production of the filtered image.
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Constructor Details- 
FilteredImageSourceConstructs an ImageProducer object from an existing ImageProducer and a filter object.- Parameters:
- orig- the specified- ImageProducer
- imgf- the specified- ImageFilter
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Method Details- 
addConsumerAdds the specifiedImageConsumerto the list of consumers interested in data for the filtered image. An instance of the originalImageFilteris created (using the filter'sgetFilterInstancemethod) to manipulate the image data for the specifiedImageConsumer. The newly created filter instance is then passed to theaddConsumermethod of the originalImageProducer.This method is public as a side effect of this class implementing the ImageProducerinterface. It should not be called from user code, and its behavior if called from user code is unspecified.- Specified by:
- addConsumerin interface- ImageProducer
- Parameters:
- ic- the consumer for the filtered image
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isConsumerDetermines whether an ImageConsumer is on the list of consumers currently interested in data for this image.This method is public as a side effect of this class implementing the ImageProducerinterface. It should not be called from user code, and its behavior if called from user code is unspecified.- Specified by:
- isConsumerin interface- ImageProducer
- Parameters:
- ic- the specified- ImageConsumer
- Returns:
- true if the ImageConsumer is on the list; false otherwise
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removeConsumerRemoves an ImageConsumer from the list of consumers interested in data for this image.This method is public as a side effect of this class implementing the ImageProducerinterface. It should not be called from user code, and its behavior if called from user code is unspecified.- Specified by:
- removeConsumerin interface- ImageProducer
- Parameters:
- ic- the specified- ImageConsumer
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startProductionStarts production of the filtered image. If the specifiedImageConsumerisn't already a consumer of the filtered image, an instance of the originalImageFilteris created (using the filter'sgetFilterInstancemethod) to manipulate the image data for theImageConsumer. The filter instance for theImageConsumeris then passed to thestartProductionmethod of the originalImageProducer.This method is public as a side effect of this class implementing the ImageProducerinterface. It should not be called from user code, and its behavior if called from user code is unspecified.- Specified by:
- startProductionin interface- ImageProducer
- Parameters:
- ic- the consumer for the filtered image
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requestTopDownLeftRightResendRequests that a given ImageConsumer have the image data delivered one more time in top-down, left-right order. The request is handed to the ImageFilter for further processing, since the ability to preserve the pixel ordering depends on the filter.This method is public as a side effect of this class implementing the ImageProducerinterface. It should not be called from user code, and its behavior if called from user code is unspecified.- Specified by:
- requestTopDownLeftRightResendin interface- ImageProducer
- Parameters:
- ic- the specified- ImageConsumer
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