com.davisor.graphics
Class ImageSizeObserver

java.lang.Object
  com.davisor.graphics.ImageSizeObserver

All Implemented Interfaces:

java.awt.image.ImageObserver

public class ImageSizeObserver

extends java.lang.Object

implements java.awt.image.ImageObserver

ImageSizeObserver implements a tool to resolve an image size in an asynchronous image loading environment.

Since:

JDK1.2

Field Summary

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

ImageSizeObserver(java.awt.Image image)
Creates an image size observer for the given image.

Method Summary

int	getHeight() Gets the image height.
int	getWidth() Gets the image width.
boolean	imageUpdate(java.awt.Image img, int infoflags, int x, int y, int width, int height)

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageSizeObserver

public ImageSizeObserver(java.awt.Image image)

Creates an image size observer for the given image.

Parameters:

image - image to measure width and height from

Method Detail

getHeight

public int getHeight()
              throws java.lang.InterruptedException

Gets the image height. If the height information is not readily available, then the method waits until it is, or until it is certain that the information never will be available. If that case, the returned image height will be zero.

Throws:

java.lang.InterruptedException - if the size resolvation was interrupted

getWidth

public int getWidth()
             throws java.lang.InterruptedException

Gets the image width. If the width information is not readily available, the method waits until it is, or until it is certain that the information never will be available. If that case, the returned image width will be zero.

Throws:

java.lang.InterruptedException - if the size resolvation was interrupted

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