// This example is from the book _Java AWT Reference_ by John Zukowski.
// Written by John Zukowski. Copyright (c) 1997 O'Reilly & Associates.
// You may study, use, modify, and distribute this example for any purpose.
// This example is provided WITHOUT WARRANTY either expressed or
import java.applet.*;
import java.awt.*;
import java.awt.image.ImageObserver;
public class imageUpdateOver extends Applet {
Image image;
boolean loaded = false;
public void init () {
image = getImage (getDocumentBase(), "rosey.jpg");
prepareImage (image, -1, -1, this);
}
public void paint (Graphics g) {
if (loaded)
g.drawImage (image, 0, 0, this);
}
public void update (Graphics g) {
paint (g);
}
public synchronized boolean imageUpdate (Image image, int infoFlags,
int x, int y, int width, int height) {
if ((infoFlags & ImageObserver.ALLBITS) != 0) {
loaded = true;
repaint();
return false;
} else {
return true;
}
}
}