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org.ydp.jai
Class ImageEncoderImpl  

java.lang.Object
  org.ydp.jai.ImageEncoderImpl

All Implemented Interfaces:

ImageEncoder

Direct Known Subclasses:

PNGImageEncoder

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public abstract class ImageEncoderImpl

extends java.lang.Object

implements ImageEncoder

A partial implementation of the ImageEncoder interface useful for subclassing.

This class is not a committed part of the JAI API. It may be removed or changed in future releases of JAI.

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Field Summary
protected  java.io.OutputStream	output           The OutputStream associcted with this ImageEncoder.
protected  ImageEncodeParam	param           The ImageEncodeParam object associcted with this ImageEncoder.

 

Constructor Summary

ImageEncoderImpl(java.io.OutputStream output, ImageEncodeParam param)           Constructs an ImageEncoderImpl with a given OutputStream and ImageEncoderParam instance.

 

Method Summary
void	encode(java.awt.image.Raster ras, java.awt.image.ColorModel cm)           Encodes a Raster with a given ColorModel and writes the output to the OutputStream associated with this ImageEncoder.
abstract  void	encode(java.awt.image.RenderedImage im)           Encodes a RenderedImage and writes the output to the OutputStream associated with this ImageEncoder.
java.io.OutputStream	getOutputStream()           Returns the OutputStream associated with this ImageEncoder.
ImageEncodeParam	getParam()           Returns the current parameters as an instance of the ImageEncodeParam interface.
void	setParam(ImageEncodeParam param)           Sets the current parameters to an instance of the ImageEncodeParam interface.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

output

protected java.io.OutputStream output

The OutputStream associcted with this ImageEncoder.

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param

protected ImageEncodeParam param

The ImageEncodeParam object associcted with this ImageEncoder.

Constructor Detail

ImageEncoderImpl

public ImageEncoderImpl(java.io.OutputStream output,
                        ImageEncodeParam param)

Constructs an ImageEncoderImpl with a given OutputStream and ImageEncoderParam instance.

Method Detail

getParam

public ImageEncodeParam getParam()

Returns the current parameters as an instance of the ImageEncodeParam interface. Concrete implementations of this interface will return corresponding concrete implementations of the ImageEncodeParam interface. For example, a JPEGImageEncoder will return an instance of JPEGEncodeParam.

Specified by:

getParam in interface ImageEncoder

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setParam

public void setParam(ImageEncodeParam param)

Sets the current parameters to an instance of the ImageEncodeParam interface. Concrete implementations of ImageEncoder may throw a RuntimeException if the params argument is not an instance of the appropriate subclass or subinterface. For example, a JPEGImageEncoder will expect param to be an instance of JPEGEncodeParam.

Specified by:

setParam in interface ImageEncoder

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getOutputStream

public java.io.OutputStream getOutputStream()

Returns the OutputStream associated with this ImageEncoder.

Specified by:

getOutputStream in interface ImageEncoder

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encode

public void encode(java.awt.image.Raster ras,
                   java.awt.image.ColorModel cm)
            throws java.io.IOException

Encodes a Raster with a given ColorModel and writes the output to the OutputStream associated with this ImageEncoder.

Specified by:

encode in interface ImageEncoder

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encode

public abstract void encode(java.awt.image.RenderedImage im)
                     throws java.io.IOException

Encodes a RenderedImage and writes the output to the OutputStream associated with this ImageEncoder.

Specified by:

encode in interface ImageEncoder

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