com.raritantechnologies.utils.graphics
Class GifEncoder

java.lang.Object
  com.raritantechnologies.utils.graphics.GifEncoder

public class GifEncoder

extends java.lang.Object

Class for converting images to GIF files.

Contribution:

• Sverre H. Huseby (gifsave.c on which this is based)
• Adam Doppelt (Initial Java port)
• Greg Faron (Initial java port)

Author:

Jacob Dreyer

Constructor Summary

GifEncoder(byte[][] r, byte[][] g, byte[][] b)
Create a GIF encoder.

GifEncoder(java.awt.Image image)
Constructing a GIF encoder.

Method Summary

void	write(java.io.OutputStream stream) Writes the image out to a stream in GIF format.
static void	writeFile(java.awt.Component component, java.io.File file) Write AWT/Swing component to GIF file.
static void	writeFile(java.awt.Image image, java.io.File file) Write image to GIF file.

Methods inherited from class java.lang.Object

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

Constructor Detail

GifEncoder

public GifEncoder(java.awt.Image image)
           throws java.awt.AWTException

Constructing a GIF encoder.

Parameters:

image - The image to encode. The image must be completely loaded.

Throws:

java.awt.AWTException - If memory is exhausted or image contains more than 256 colors.

GifEncoder

public GifEncoder(byte[][] r,
                  byte[][] g,
                  byte[][] b)
           throws java.awt.AWTException

Create a GIF encoder.

r[i][j] refers to the pixel at column i, row j

Parameters:

r - Red intensity values.

g - Green intensity values.

b - Blue intensity values.

Throws:

java.awt.AWTException - If memory is exhausted or image contains more than 256 colors.

Method Detail

writeFile

public static void writeFile(java.awt.Image image,
                             java.io.File file)
                      throws java.awt.AWTException,
                             java.io.IOException

Write image to GIF file.

Parameters:

image - Image to write.

file - File to erite to.

Throws:

java.awt.AWTException

java.io.IOException

writeFile

public static void writeFile(java.awt.Component component,
                             java.io.File file)
                      throws java.awt.AWTException,
                             java.io.IOException

Write AWT/Swing component to GIF file.

Parameters:

file - File to erite to.

Throws:

java.awt.AWTException

java.io.IOException

write

public void write(java.io.OutputStream stream)
           throws java.io.IOException

Writes the image out to a stream in GIF format. This will be a single GIF87a image, non-interlaced, with no background color.

Parameters:

stream - The stream to which to output.

Throws:

java.io.IOException - Thrown if a write operation fails.