com.purpletech.awt
Class ImageBuilder

java.lang.Object
  |
  +--com.purpletech.awt.ImageBuilder

All Implemented Interfaces:

java.awt.image.ImageObserver

public class ImageBuilder

extends java.lang.Object

implements java.awt.image.ImageObserver

Builds an image by layering a series of transparent GIFs (or any transparent images). See also com.purpletech.servlets.ImageServlet.

Nested Class Summary

static class

ImageBuilder.ImageInfo

Field Summary

protected java.awt.Graphics	g
int	height
protected java.awt.Image	img
int	width

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

ImageBuilder(int width, int height)

Method Summary

void	addImageList(java.lang.String path, java.util.Vector v)
static java.util.Vector	buildImageList(java.lang.String list, java.lang.String ext) Pass in a semicolon-delimited list of image file names, get back a vector of ImageInfo records that you can pass to addImageList.
void	dispose()
boolean	imageUpdate(java.awt.Image img, int infoflags, int x, int y, int width, int height)
void	writeFile(java.lang.String file)

Methods inherited from class java.lang.Object

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

Field Detail

width

public int width

height

public int height

img

protected java.awt.Image img

g

protected java.awt.Graphics g

Constructor Detail

ImageBuilder

public ImageBuilder(int width,
                    int height)

Method Detail

buildImageList

public static java.util.Vector buildImageList(java.lang.String list,
                                              java.lang.String ext)

Pass in a semicolon-delimited list of image file names, get back a vector of ImageInfo records that you can pass to addImageList. Optionally, each image file name can end with ",x,y" for a pixel offset.

Parameters:

list - a semicolon-delimited list of image file names

ext - file type, e.g. ".gif" (if null, then we assume all file names have the right extension)

addImageList

public void addImageList(java.lang.String path,
                         java.util.Vector v)
                  throws java.io.IOException

java.io.IOException

imageUpdate

public boolean imageUpdate(java.awt.Image img,
                           int infoflags,
                           int x,
                           int y,
                           int width,
                           int height)

Specified by:

imageUpdate in interface java.awt.image.ImageObserver

writeFile

public void writeFile(java.lang.String file)
               throws java.io.IOException

java.io.IOException

dispose

public void dispose()