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AnimatorApplicationTimer.javaAPI DocExample2877Tue Dec 12 18:59:06 GMT 2000None

AnimatorApplicationTimer

public class AnimatorApplicationTimer extends JFrame implements ActionListener

Fields Summary
int
frameNumber
Timer
timer
boolean
frozen
JLabel
label
Constructors Summary
AnimatorApplicationTimer(int fps, String windowTitle)


        
        super(windowTitle);
        int delay = (fps > 0) ? (1000 / fps) : 100;

        //Set up a timer that calls this object's action handler.
        timer = new Timer(delay, this);
        timer.setInitialDelay(0);
        timer.setCoalesce(true);

        addWindowListener(new WindowAdapter() {
            public void windowIconified(WindowEvent e) {
                stopAnimation();
            }
            public void windowDeiconified(WindowEvent e) {
                startAnimation();
            }
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }  
        });

        label = new JLabel("Frame     ", JLabel.CENTER);
        label.addMouseListener(new MouseAdapter() {
            public void mousePressed(MouseEvent e) {
                if (frozen) {
                    frozen = false;
                    startAnimation();
                } else {
                    frozen = true;
                    stopAnimation();
                }
            }
        });

        getContentPane().add(label, BorderLayout.CENTER);
Methods Summary
public voidactionPerformed(java.awt.event.ActionEvent e)

        //Advance the animation frame.
        frameNumber++;
        label.setText("Frame " + frameNumber);
public static voidmain(java.lang.String[] args)

        AnimatorApplicationTimer animator = null;
        int fps = 10;

        //Get frames per second from the command line argument.
        if (args.length > 0) {
            try {
                fps = Integer.parseInt(args[0]);
            } catch (Exception e) {}
        }
        animator = new AnimatorApplicationTimer(fps, "Animator with Timer");
        animator.pack();
        animator.setVisible(true);

        //It's OK to start the animation here because 
        //startAnimation can be invoked by any thread.
        animator.startAnimation();
public voidstartAnimation()

        if (frozen) {
            //Do nothing.  The user has requested that we
            //stop changing the image.
        } else {
            //Start animating!
            if (!timer.isRunning()) {
                timer.start();
            }
        }
public voidstopAnimation()

        //Stop the animating thread.
        if (timer.isRunning()) {
            timer.stop();
        }