external

Class AnimatedGifDemo

java.lang.Object

external.AnimatedGifDemo

public class AnimatedGifDemo
extends java.lang.Object

Creates an animated GIF from GIF frames. A thin wrapper to code written by other people, as documented on the thread on the Sun forums 'Create animated GIF using imageio' http://forums.sun.com/thread.jspa?threadID=5395006 See the printUsage() method for details on paramaters required.

Constructor Summary

Constructors

Constructor and Description
AnimatedGifDemo()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	checkDelay(java.lang.String delay) Checks that a String intended as a delayTime is an integer>0.
static void	configure(javax.imageio.metadata.IIOMetadata meta, java.lang.String delayTime, int imageIndex) See http://forums.sun.com/thread.jspa?messageID=10755673#10755673
static void	main(java.lang.String[] args) Parse the arguments and if successful, attempt to write the animated GIF.
static void	printUsage() Dump the usage to the System.err stream.
static void	saveAnimate(java.io.File file, java.awt.image.BufferedImage[] frames, java.lang.String[] delayTimes) See http://forums.sun.com/thread.jspa?messageID=9988198
static void	saveAnimate(java.io.File file, java.util.Iterator<java.awt.image.BufferedImage> frames, java.util.Iterator<java.lang.String> delayTimes) Rewrite of the saveAnimate that takes an iterator so that all images need not be in memory at once.

Methods inherited from class java.lang.Object

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

Constructor Detail

AnimatedGifDemo

public AnimatedGifDemo()

Method Detail

configure

public static void configure(javax.imageio.metadata.IIOMetadata meta,
                             java.lang.String delayTime,
                             int imageIndex)

See http://forums.sun.com/thread.jspa?messageID=10755673#10755673

Parameters:

delayTime - String Frame delay for this frame, in hundredths of a second.

saveAnimate

public static void saveAnimate(java.io.File file,
                               java.awt.image.BufferedImage[] frames,
                               java.lang.String[] delayTimes)
                        throws java.io.IOException

See http://forums.sun.com/thread.jspa?messageID=9988198

Parameters:

file - File A File in which to store the animation.

frames - BufferedImage[] Array of BufferedImages, the frames of the animation.

delayTimes - String[] Array of Strings, representing the frame delay times.

Throws:

java.io.IOException

saveAnimate

public static void saveAnimate(java.io.File file,
                               java.util.Iterator<java.awt.image.BufferedImage> frames,
                               java.util.Iterator<java.lang.String> delayTimes)
                        throws java.io.IOException

Rewrite of the saveAnimate that takes an iterator so that all images need not be in memory at once.

Parameters:

file - File A File in which to store the animation.

frames - Iterator of BufferedImages, the frames of the animation.

delayTimes - Iterator of Strings, representing the frame delay times in hundredths of a second. in formatted tenths-of-seconds (hundred-millisecond units).

Throws:

java.io.IOException

printUsage

public static void printUsage()

Dump the usage to the System.err stream.

checkDelay

public static java.lang.String checkDelay(java.lang.String delay)

Checks that a String intended as a delayTime is an integer>0. If not, dumps a warning message and the usage, then exits. If successful, returns the String unaltered.

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Parse the arguments and if successful, attempt to write the animated GIF.

Throws:

java.lang.Exception