Source Code : Animations Example

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Animations Example

 


/*******************************************************************************
 * 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();
  }
}

           
         
  

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