Animations.java Source code

Introduction

Here is the source code for Animations.java

Source

/*******************************************************************************
 * All Right Reserved. Copyright (c) 1998, 2004 Jackwind Li Guojie
 * 
 * Created on 2004-4-22 11:06:42 by JACK $Id$
 *  
 ******************************************************************************/

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.events.ShellAdapter;
import org.eclipse.swt.events.ShellEvent;
import org.eclipse.swt.events.ShellListener;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.ImageLoader;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class Animations {
    Display display = new Display();
    Shell shell = new Shell(display);

    public Animations() {
        shell.setLayout(new FillLayout());

        ImageLoader imageLoader = new ImageLoader();
        final ImageData[] imageDatas = imageLoader.load("java2s.gif");

        final Image image = new Image(display, imageDatas[0].width, imageDatas[0].height);
        final Canvas canvas = new Canvas(shell, SWT.NULL);

        canvas.addPaintListener(new PaintListener() {
            public void paintControl(PaintEvent e) {
                e.gc.drawImage(image, 0, 0);
            }
        });

        final GC gc = new GC(image);

        final Thread thread = new Thread() {
            int frameIndex = 0;

            public void run() {
                while (!isInterrupted()) {
                    frameIndex %= imageDatas.length;

                    final ImageData frameData = imageDatas[frameIndex];
                    display.asyncExec(new Runnable() {
                        public void run() {
                            Image frame = new Image(display, frameData);
                            gc.drawImage(frame, frameData.x, frameData.y);
                            frame.dispose();
                            canvas.redraw();
                        }
                    });

                    try {
                        // delay
                        Thread.sleep(imageDatas[frameIndex].delayTime * 10);
                    } catch (InterruptedException e) {
                        return;
                    }

                    frameIndex += 1;
                }

            }
        };

        shell.addShellListener(new ShellAdapter() {
            public void shellClosed(ShellEvent e) {
                thread.interrupt();
            }
        });

        shell.setSize(400, 200);
        shell.open();

        thread.start();

        // Set up the event loop.
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                // If no more entries in event queue
                display.sleep();
            }
        }

        display.dispose();
    }

    private void init() {

    }

    public static void main(String[] args) {
        new Animations();
    }
}