Class ZipImageLoader

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public class ZipImageLoader

extends Object

ZipImageLoader - Downloads a compressed Zip file and extracts the information into an Image Array.

This class is designed to cut dynamic load time by allowing the code developer to zip a large number of images and laod them as arrays in their program. Not only does this save download time by only requesting one file, the contents can be compressed.

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comp

myImages

PATH

tracker

url

ZipImageLoader(String, Applet)

Creates a new Instance of the class, so it can be used later.

addImage(Image[], Image)

Used to Add an Image to the end of an Array.

getImages(String)

Downloads a zip file and extracts the contents into an images array.

PATH

 private static final String PATH

myImages

 Image myImages[]

tracker

 MediaTracker tracker

url

 String url

comp

 Applet comp

ZipImageLoader

 public ZipImageLoader(String url,
                       Applet c)

Creates a new Instance of the class, so it can be used later.

Parameters:

url - Base URL, where all the Zip files are kept.

c - Instance of an Applet, for call backs.

getImages

 public Image[] getImages(String file)

Downloads a zip file and extracts the contents into an images array. This function also makes use a MediaTracker to make sure the images download and uses CRC32 to make sure the file integrity is good.

Parameters:

file - The file to download and extract

Returns:

and Image Array with the contents of the Zip File.

addImage

 private Image[] addImage(Image ary[],
                          Image im)

Used to Add an Image to the end of an Array.

Parameters:

ary - The old array.

im - New Image to add.

Returns:

The new array.