Source Code : Clip Image

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Clip Image

/******************************************************************************
 * All Right Reserved. 
 * Copyright (c) 1998, 2004 Jackwind Li Guojie
 * 
 * Created on 2004-4-19 15:03:55 by JACK
 * $Id$
 * 
 *****************************************************************************/

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Region;
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 Clipping {
  Display display = new Display();
  Shell shell = new Shell(display);

  public Clipping() {
    shell.setLayout(new FillLayout());
    
    final Canvas canvas = new Canvas(shell, SWT.NULL);
    final Image image = new Image(display, "java2s.gif");
    canvas.addPaintListener(new PaintListener() {
      public void paintControl(PaintEvent e) {
        Region region = new Region();
        region.add(new int[]{60, 10, 10, 100, 110, 100});
        e.gc.setClipping(region);
        
        e.gc.drawImage(image, 0, 0);
      }
    });

    shell.setSize(200, 140);
    shell.open();
    //textUser.forceFocus();

    // 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 Clipping();
  }
}

           
       

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