com.mebigfatguy.polycasso
Class ImageSizer

java.lang.Object
  com.mebigfatguy.polycasso.ImageSizer

All Implemented Interfaces:

java.awt.image.ImageObserver

public class ImageSizer
extends java.lang.Object
implements java.awt.image.ImageObserver

ensures that the fetching of the width or height of an image will always return a non negative number

Field Summary

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

ImageSizer(java.awt.Image loadedImage)
constructs an image sizer for the specified image

Method Summary

int	getHeight() get the height of the image, waiting if necessary
int	getWidth() get the width of the image, waiting if necessary
boolean	imageUpdate(java.awt.Image img, int infoflags, int x, int y, int width, int height) implements the callback to collect the width and height of the image

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageSizer

public ImageSizer(java.awt.Image loadedImage)

constructs an image sizer for the specified image

Parameters:

loadedImage - the image to get the width and height of

Method Detail

imageUpdate

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

implements the callback to collect the width and height of the image

Specified by:

imageUpdate in interface java.awt.image.ImageObserver

Parameters:

img - the image that is being loaded

infoflags - flags specifying what has changed

x - the horizontal position

y - the vertical position

width - the width of the image

height - the height of the image

Returns:

whether further processing is desired

getWidth

public int getWidth()

get the width of the image, waiting if necessary

Returns:

the width of the image

getHeight

public int getHeight()

get the height of the image, waiting if necessary

Returns:

the height of the image