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Class picture.ImageEncoder 

java.lang.Object
   |
   +----picture.ImageEncoder
public abstract class ImageEncoder
extends Object
implements 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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See Also:
GifEncoder, PpmEncoder

Variable Index

o accumulate
o accumulator
o encoding
o height
o hintflags
o iox
o out
o producer
o props
o rgbModel
o started
o width

Constructor Index

o ImageEncoder(Image, OutputStream)
Constructor.
o ImageEncoder(ImageProducer, OutputStream)
Constructor.

Method Index

o encode()
Call this after initialization to get things going.
o encodeDone()
Subclasses implement this to finish an encoding.
o encodeFinish()
o encodePixels(int, int, int, int, int[], int, int)
Subclasses implement this to actually write out some bits.
o encodePixelsWrapper(int, int, int, int, int[], int, int)
o encodeStart(int, int)
Subclasses implement this to initialize an encoding.
o imageComplete(int)
o setColorModel(ColorModel)
o setDimensions(int, int)
o setHints(int)
o setPixels(int, int, int, int, ColorModel, byte[], int, int)
o setPixels(int, int, int, int, ColorModel, int[], int, int)
o setProperties(Hashtable)
o stop()

Variables

o out 
 protected OutputStream out
o producer 
 private ImageProducer producer
o width 
 private int width
o height 
 private int height
o hintflags 
 private int hintflags
o started 
 private boolean started
o encoding 
 private boolean encoding
o iox 
 private IOException iox
o rgbModel 
 private static final ColorModel rgbModel
o props 
 private Hashtable props
o accumulate 
 private boolean accumulate
o accumulator 
 private int accumulator[]

Constructors

o ImageEncoder 
 public ImageEncoder(Image img,
                     OutputStream out) throws IOException
Constructor.

Parameters:
img - The image to encode.
out - The stream to write the bytes to.
o ImageEncoder 
 public ImageEncoder(ImageProducer producer,
                     OutputStream out) throws IOException
Constructor.

Parameters:
producer - The ImageProducer to encode.
out - The stream to write the bytes to.

Methods

o encodeStart 
 abstract void encodeStart(int w,
                           int h) throws IOException
Subclasses implement this to initialize an encoding.

o encodePixels 
 abstract void encodePixels(int x,
                            int y,
                            int w,
                            int h,
                            int rgbPixels[],
                            int off,
                            int scansize) throws IOException
Subclasses implement this to actually write out some bits. They are guaranteed to be delivered in top-down-left-right order. One int per pixel, index is row * scansize + off + col, RGBdefault (AARRGGBB) color model.

o encodeDone 
 abstract void encodeDone() throws IOException
Subclasses implement this to finish an encoding.

o encode 
 public synchronized void encode() throws IOException
Call this after initialization to get things going.

o encodePixelsWrapper 
 private void encodePixelsWrapper(int x,
                                  int y,
                                  int w,
                                  int h,
                                  int rgbPixels[],
                                  int off,
                                  int scansize) throws IOException
o encodeFinish 
 private void encodeFinish() throws IOException
o stop 
 private synchronized void stop()
o setDimensions 
 public void setDimensions(int width,
                           int height)
o setProperties 
 public void setProperties(Hashtable props)
o setColorModel 
 public void setColorModel(ColorModel model)
o setHints 
 public void setHints(int hintflags)
o setPixels 
 public void setPixels(int x,
                       int y,
                       int w,
                       int h,
                       ColorModel model,
                       byte pixels[],
                       int off,
                       int scansize)
o setPixels 
 public void setPixels(int x,
                       int y,
                       int w,
                       int h,
                       ColorModel model,
                       int pixels[],
                       int off,
                       int scansize)
o imageComplete 
 public void imageComplete(int status)

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