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Acme.JPM.Encoders
Class ImageEncoder  

java.lang.Object
  Acme.JPM.Encoders.ImageEncoder

All Implemented Interfaces:

java.awt.image.ImageConsumer

Direct Known Subclasses:

GifEncoder, PpmEncoder

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public abstract class ImageEncoder

extends java.lang.Object

implements java.awt.image.ImageConsumer

Abstract class for writing out an image.

A framework for classes that encode and write out an image in a particular file format.

This provides a simplified rendition of the ImageConsumer interface. It always delivers the pixels as ints in the RGBdefault color model. It always provides them in top-down left-right order. If you want more flexibility you can always implement ImageConsumer directly.

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Field Summary
private  boolean	accumulate
private  int[]	accumulator
private  boolean	encoding
private  int	height
private  int	hintflags
private  java.io.IOException	iox
protected  java.io.OutputStream	out
private  java.awt.image.ImageProducer	producer
private  java.util.Hashtable	props
private static java.awt.image.ColorModel	rgbModel
private  boolean	started
private  int	width

 

Fields inherited from interface java.awt.image.ImageConsumer

COMPLETESCANLINES, IMAGEABORTED, IMAGEERROR, RANDOMPIXELORDER, SINGLEFRAME, SINGLEFRAMEDONE, SINGLEPASS, STATICIMAGEDONE, TOPDOWNLEFTRIGHT

 

Constructor Summary

ImageEncoder(java.awt.Image img, java.io.OutputStream out)

ImageEncoder(java.awt.image.ImageProducer producer, java.io.OutputStream out)

 

Method Summary
void	encode()
(package private) abstract  void	encodeDone()
private  void	encodeFinish()
(package private) abstract  void	encodePixels(int x, int y, int w, int h, int[] rgbPixels, int off, int scansize)
private  void	encodePixelsWrapper(int x, int y, int w, int h, int[] rgbPixels, int off, int scansize)
(package private) abstract  void	encodeStart(int w, int h)
void	imageComplete(int status)           The ImageProducer calls this method to indicate a single frame or the entire image is complete.
void	setColorModel(java.awt.image.ColorModel model)           This ColorModel should indicate the model used by the majority of calls to setPixels.
void	setDimensions(int width, int height)           An ImageProducer indicates the size of the image being produced using this method.
void	setHints(int hintflags)           The ImageProducer should call this method with a bit mask of hints from any of RANDOMPIXELORDER, TOPDOWNLEFTRIGHT, COMPLETESCANLINES, SINGLEPASS, SINGLEFRAME.
void	setPixels(int x, int y, int w, int h, java.awt.image.ColorModel model, byte[] pixels, int off, int scansize)           Deliver a subset of an ImageProducer's pixels to this ImageConsumer.
void	setPixels(int x, int y, int w, int h, java.awt.image.ColorModel model, int[] pixels, int off, int scansize)           Deliver a subset of an ImageProducer's pixels to this ImageConsumer.
void	setProperties(java.util.Hashtable props)           An ImageProducer can set a list of properties associated with this image by using this method.
private  void	stop()

 

Methods inherited from class java.lang.Object

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

 

Field Detail

rgbModel

private static final java.awt.image.ColorModel rgbModel

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out

protected java.io.OutputStream out

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props

private java.util.Hashtable props

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iox

private java.io.IOException iox

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producer

private java.awt.image.ImageProducer producer

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accumulator

private int[] accumulator

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accumulate

private boolean accumulate

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encoding

private boolean encoding

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started

private boolean started

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height

private int height

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hintflags

private int hintflags

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width

private int width

Constructor Detail

ImageEncoder

public ImageEncoder(java.awt.Image img,
                    java.io.OutputStream out)
             throws java.io.IOException

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ImageEncoder

public ImageEncoder(java.awt.image.ImageProducer producer,
                    java.io.OutputStream out)
             throws java.io.IOException

Method Detail

setColorModel

public void setColorModel(java.awt.image.ColorModel model)

Description copied from interface: java.awt.image.ImageConsumer

This ColorModel should indicate the model used by the majority of calls to setPixels. Each call to setPixels could however indicate a different ColorModel.

Specified by:

setColorModel in interface java.awt.image.ImageConsumer

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setDimensions

public void setDimensions(int width,
                          int height)

Description copied from interface: java.awt.image.ImageConsumer

An ImageProducer indicates the size of the image being produced using this method.

Specified by:

setDimensions in interface java.awt.image.ImageConsumer

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setHints

public void setHints(int hintflags)

Description copied from interface: java.awt.image.ImageConsumer

The ImageProducer should call this method with a bit mask of hints from any of RANDOMPIXELORDER, TOPDOWNLEFTRIGHT, COMPLETESCANLINES, SINGLEPASS, SINGLEFRAME.

Specified by:

setHints in interface java.awt.image.ImageConsumer

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setPixels

public void setPixels(int x,
                      int y,
                      int w,
                      int h,
                      java.awt.image.ColorModel model,
                      byte[] pixels,
                      int off,
                      int scansize)

Description copied from interface: java.awt.image.ImageConsumer

Deliver a subset of an ImageProducer's pixels to this ImageConsumer. Each element of the pixels array represents one pixel. The pixel data is formatted according to the color model model. The x and y parameters are the coordinates of the block of pixels being delivered to this ImageConsumer. They are specified relative to the top left corner of the image being produced. Likewise, w and h are the pixel block's dimensions.

Specified by:

setPixels in interface java.awt.image.ImageConsumer

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setPixels

public void setPixels(int x,
                      int y,
                      int w,
                      int h,
                      java.awt.image.ColorModel model,
                      int[] pixels,
                      int off,
                      int scansize)

Description copied from interface: java.awt.image.ImageConsumer

Deliver a subset of an ImageProducer's pixels to this ImageConsumer. Each element of the pixels array represents one pixel. The pixel data is formatted according to the color model model. The x and y parameters are the coordinates of the rectangular region of pixels being delivered to this ImageConsumer, specified relative to the top left corner of the image being produced. Likewise, w and h are the pixel region's dimensions.

Specified by:

setPixels in interface java.awt.image.ImageConsumer

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setProperties

public void setProperties(java.util.Hashtable props)

Description copied from interface: java.awt.image.ImageConsumer

An ImageProducer can set a list of properties associated with this image by using this method.

Specified by:

setProperties in interface java.awt.image.ImageConsumer

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encode

public void encode()
            throws java.io.IOException

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imageComplete

public void imageComplete(int status)

Description copied from interface: java.awt.image.ImageConsumer

The ImageProducer calls this method to indicate a single frame or the entire image is complete. The method is also used to indicate an error in loading or producing the image.

Specified by:

imageComplete in interface java.awt.image.ImageConsumer

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encodeDone

abstract void encodeDone()
                  throws java.io.IOException

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encodePixels

abstract void encodePixels(int x,
                           int y,
                           int w,
                           int h,
                           int[] rgbPixels,
                           int off,
                           int scansize)
                    throws java.io.IOException

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encodeStart

abstract void encodeStart(int w,
                          int h)
                   throws java.io.IOException

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encodeFinish

private void encodeFinish()
                   throws java.io.IOException

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encodePixelsWrapper

private void encodePixelsWrapper(int x,
                                 int y,
                                 int w,
                                 int h,
                                 int[] rgbPixels,
                                 int off,
                                 int scansize)
                          throws java.io.IOException

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stop

private void stop()

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Home >> All >> Acme >> JPM >> [ Encoders overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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