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Hashtable proxies = …;
ImageConsumer ic = …;
ImageFilter imgf = (ImageFilter)proxies.get(ic);
Based on 9 examples
public class ImageFilter extends Object implements ImageConsumer, Cloneable
This class implements a filter for the set of interface methods that are used to deliver data from an ImageProducer to an ImageConsumer. It is meant to be used in conjunction with a FilteredImageSource object to produce filtered versions of existing images. It is a base class that provides the calls needed to implement a "Null filter" which has no effect on the data being passed through. Filters should subclass this class and override the methods which deal with the data that needs to be filtered and modify it as necessary.
Field Summary | |
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protected ImageConsumer |
consumer
The consumer of the particular image data stream for which this instance of the ImageFilter is filtering data. |
Constructor Summary | |
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Method Summary | |
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Object |
clone() Clones this object. |
ImageFilter |
Returns a unique instance of an ImageFilter object which will actually perform the filtering for the specified ImageConsumer. |
void |
imageComplete(int status) Filters the information provided in the imageComplete method of the ImageConsumer interface. |
void |
Responds to a request for a TopDownLeftRight (TDLR) ordered resend of the pixel data from an ImageConsumer .
|
void |
setColorModel(ColorModel model) Filter the information provided in the setColorModel method of the ImageConsumer interface. |
void |
setDimensions(int width, int height) Filters the information provided in the setDimensions method of the ImageConsumer interface. |
void |
setHints(int hints) Filters the information provided in the setHints method of the ImageConsumer interface. |
void |
setPixels(int x, int y, int w, int h, ColorModel model, byte[] pixels, int off, int scansize) Filters the information provided in the setPixels method of the ImageConsumer interface which takes an array of bytes. |
void |
setPixels(int x, int y, int w, int h, ColorModel model, int[] pixels, int off, int scansize) Filters the information provided in the setPixels method of the ImageConsumer interface which takes an array of integers. |
void |
setProperties(Hashtable props) Passes the properties from the source object along after adding a property indicating the stream of filters it has been run through. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected ImageConsumer consumer
Constructor Detail |
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public ImageFilter()
Method Detail |
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public Object clone()
clone
in class Object
public ImageFilter getFilterInstance(ImageConsumer ic)
Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
ic
- the specified ImageConsumer
ImageFilter
used to perform the
filtering for the specified ImageConsumer
.public void imageComplete(int status)
Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
status
public void resendTopDownLeftRight(ImageProducer ip)
ImageConsumer
.
When an ImageConsumer
being fed
by an instance of this ImageFilter
requests a resend of the data in TDLR order,
the FilteredImageSource
invokes this method of the ImageFilter
.
An ImageFilter
subclass might override this method or not,
depending on if and how it can send data in TDLR order.
Three possibilities exist:
ImageProducer
using this filter as the requesting ImageConsumer
.
This behavior
is appropriate if the filter can determine
that it will forward the pixels
in TDLR order if its upstream producer object
sends them in TDLR order.
ip
- the ImageProducer that is feeding this instance of
the filter - also the ImageProducer that the request should be
forwarded to if necessarypublic void setColorModel(ColorModel model)
Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
model
public void setDimensions(int width, int height)
Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
width
height
public void setHints(int hints)
Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
hints
public void setPixels(int x, int y, int w, int h, ColorModel model, byte[] pixels, int off, int scansize)
Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
x
y
w
h
model
pixels
off
scansize
public void setPixels(int x, int y, int w, int h, ColorModel model, int[] pixels, int off, int scansize)
Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
x
y
w
h
model
pixels
off
scansize
public void setProperties(Hashtable props)
Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
props
- the properties from the source object
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