us.zuercher.gpx2map.image.generic
Class GenericImageFactory.SizeObserver

java.lang.Object
  us.zuercher.gpx2map.image.generic.GenericImageFactory.Observer
      us.zuercher.gpx2map.image.generic.GenericImageFactory.SizeObserver

All Implemented Interfaces:

ImageObserver

Enclosing class:

GenericImageFactory

private static class GenericImageFactory.SizeObserver
extends GenericImageFactory.Observer
implements ImageObserver

SizeObserver is an ImageObserver that can be waited upon to determine when an image's size data has been loaded.

Field Summary

private int	height Image height, once known.
private int	width Image width, once known.

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

private

GenericImageFactory.SizeObserver()

Method Summary

boolean

imageUpdate(Image img, int infoflags, int x, int y, int width, int height) Implements ImageObserver.imageUpdate(Image, int, int, int, int, int) and stores the width and height of the image.

Methods inherited from class us.zuercher.gpx2map.image.generic.GenericImageFactory.Observer

observationComplete, waitOnObservation

Methods inherited from class java.lang.Object

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

Field Detail

width

private int width

Image width, once known.

height

private int height

Image height, once known.

Constructor Detail

GenericImageFactory.SizeObserver

private GenericImageFactory.SizeObserver()

Method Detail

imageUpdate

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

Implements ImageObserver.imageUpdate(Image, int, int, int, int, int) and stores the width and height of the image. Call GenericImageFactory.Observer.waitOnObservation() to wait for the dimensions to be stored.

Specified by:

imageUpdate in interface ImageObserver

Parameters:

img - the image, not used since JavaConverter loads a single image at a time

infoflags - informational flags

x - unused

y - unused

width - image width

height - image height

Returns:

true until all necessary observations are complete