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/******************************************************************************
* All Right Reserved.
* Copyright (c) 1998, 2004 Jackwind Li Guojie
*
* Created on 2004-4-19 15:31:18 by JACK
* $Id$
*
*****************************************************************************/
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
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 XOR {
Display display = new Display();
Shell shell = new Shell(display);
public XOR() {
shell.setLayout(new FillLayout());
final Canvas canvas = new Canvas(shell, SWT.NULL);
canvas.setBackground(display.getSystemColor(SWT.COLOR_WHITE));
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.setXORMode(true);
e.gc.setBackground(display.getSystemColor(SWT.COLOR_GREEN));
e.gc.fillOval(60, 10, 100, 100); // Top
e.gc.setBackground(display.getSystemColor(SWT.COLOR_RED));
e.gc.fillOval(10, 60, 120, 120); // left bottom
e.gc.setBackground(display.getSystemColor(SWT.COLOR_BLUE));
e.gc.fillOval(110, 60, 100, 100); // right bottom
}
});
shell.setSize(300, 220);
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 XOR();
}
}
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