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| java.lang.Object
 java.awt.image.FilteredImageSource
| FilteredImageSource | | public class FilteredImageSource implements ImageProducer(Code) | | 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));
See Also: ImageProducer
version:
1.35 05/05/07
author:
Jim Graham |
| Method Summary | |
| public synchronized void | addConsumer(ImageConsumer ic)
Adds the specified ImageConsumer
to the list of consumers interested in data for the filtered image. | | public synchronized boolean | isConsumer(ImageConsumer ic)
Determines whether an ImageConsumer is on the list of consumers
currently interested in data for this image. | | public synchronized void | removeConsumer(ImageConsumer ic)
Removes an ImageConsumer from the list of consumers interested in
data for this image. | | public void | requestTopDownLeftRightResend(ImageConsumer ic)
Requests that a given ImageConsumer have the image data delivered
one more time in top-down, left-right order. | | public void | startProduction(ImageConsumer ic)
Starts production of the filtered image. |
| addConsumer | | public synchronized void addConsumer(ImageConsumer ic)(Code) | | Adds the specified 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.
Parameters:
ic - the consumer for the filtered image
See Also: ImageConsumer |
| isConsumer | | public synchronized boolean isConsumer(ImageConsumer ic)(Code) | | Determines 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 ImageProducer interface.
It should not be called from user code,
and its behavior if called from user code is unspecified.
Parameters:
ic - the specified ImageConsumer true if the ImageConsumer is on the list; false otherwise
See Also: ImageConsumer |
| removeConsumer | | public synchronized void removeConsumer(ImageConsumer ic)(Code) | | Removes 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 ImageProducer interface.
It should not be called from user code,
and its behavior if called from user code is unspecified.
See Also: ImageConsumer |
| requestTopDownLeftRightResend | | public void requestTopDownLeftRightResend(ImageConsumer ic)(Code) | | Requests 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 ImageProducer interface.
It should not be called from user code,
and its behavior if called from user code is unspecified.
See Also: ImageConsumer |
| startProduction | | public void startProduction(ImageConsumer ic)(Code) | | Starts production of the filtered image.
If the specified 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.
Parameters:
ic - the consumer for the filtered image
See Also: ImageConsumer |
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