com.partnersoft.v3x.graphics.codec.png
Class PNGEncoder

java.lang.Object
  com.partnersoft.v3x.graphics.codec.png.PNGEncoder

All Implemented Interfaces:

ImageEncoder

public class PNGEncoder
extends java.lang.Object
implements ImageEncoder

Constructor Summary

PNGEncoder(int width, int height)
A handy default constructor.

Method Summary

void	encodeImage(java.awt.Image nimage, java.io.OutputStream out)
void	encodeImage(java.awt.Image nimage, java.lang.String filename)
void	grabPixels() Grabs a line of pixels into the pixels array
void	writeImageChunk() this is the strangest of them all but somehow works!!! this uses the zlib compression and several buffers to write the non filtered data to the outfile stream
void	writePNGEnd() this will write the "trailer" for the PNG file
void	writePNGHeader() this will write the identifier for png files this should always happen first
void	writePNGImageHeader() this will write the image header for the image including default simple settings and specifing the image characteristics

Methods inherited from class java.lang.Object

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

Constructor Detail

PNGEncoder

public PNGEncoder(int width,
                  int height)

A handy default constructor.

Method Detail

encodeImage

public void encodeImage(java.awt.Image nimage,
                        java.lang.String filename)
                 throws java.io.IOException

Specified by:

encodeImage in interface ImageEncoder

Throws:

java.io.IOException

encodeImage

public void encodeImage(java.awt.Image nimage,
                        java.io.OutputStream out)
                 throws java.io.IOException

Throws:

java.io.IOException

writePNGImageHeader

public void writePNGImageHeader()
                         throws java.io.IOException

this will write the image header for the image including default simple settings and specifing the image characteristics

Throws:

java.io.IOException

writePNGHeader

public void writePNGHeader()
                    throws java.io.IOException

this will write the identifier for png files this should always happen first

Throws:

java.io.IOException

grabPixels

public void grabPixels()
                throws java.io.IOException

Grabs a line of pixels into the pixels array

Throws:

java.io.IOException

writeImageChunk

public void writeImageChunk()
                     throws java.io.IOException

this is the strangest of them all but somehow works!!! this uses the zlib compression and several buffers to write the non filtered data to the outfile stream

Throws:

java.io.IOException

writePNGEnd

public void writePNGEnd()
                 throws java.io.IOException

this will write the "trailer" for the PNG file

Throws:

java.io.IOException