// load the images when the applet begins executing
public void init() {
int i;
this.processHTMLParameters();
if (totalImages == 0 || imageName == null) {
this.showStatus("Invalid parameters");
this.destroy();
}
images = new Vector(totalImages, 1);
imageTracker = new MediaTracker(this);
for (i = 0; i < totalImages; i++) {
images.addElement(this.getImage(this.getDocumentBase(), "images/" + imageName + i + ".gif"));
// track loading image
imageTracker.addImage((Image) images.elementAt(i), i);
}
// wait for the first image,
// must use a Joos version of tracker to avoid catching
// interruped exception
new JoosMediaTracker(imageTracker).waitForID(0);
width = ((Image) images.elementAt(0)).getWidth(this);
height = ((Image) images.elementAt(0)).getHeight(this);
this.resize(width, height + 30);
buffer = this.createImage(width, height);
gContext = buffer.getGraphics();
// set background of buffer to white
gContext.setColor(c.white());
gContext.fillRect(0, 0, 160, 80);
this.setLayout(new BorderLayout(10, 10));
sleepLabel = new Label("Sleep time", c.LABEL_CENTER());
sleepDisplay = new TextField("", 5);
sleepDisplay.setText(new Integer(sleepTime).toString());
sleepStuff = new Panel();
sleepStuff.add(sleepLabel);
sleepStuff.add(sleepDisplay);
new JoosContainer(this).addString("South", sleepStuff);
}
// start the applet
public void start() {
// always start with 1st image
gContext.drawImage((Image) images.elementAt(0), 0, 0, this);
// create a new animation thread when user visits page
if (animate == null) {
animate = new Thread(new Animator2Run(this, images, imageTracker, gContext));
animate.start();
}
}
// display the image in the Applet's Graphics context
public void paint(Graphics g) {
g.drawImage(buffer, 0, 0, this);
}