Description Silenio Quarti 2010-07-30 11:16:15 EDT

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;


public class Test {
public static void main(String[] args) {
	Display display = new Display();
	Shell shell = new Shell(display);

	shell.addListener(SWT.Paint, new Listener() {
		public void handleEvent(Event event) {
			GC gc = event.gc;
			Image image = new Image(gc.getDevice(), 100, 100);
			GC imageGC = new GC(image);
			imageGC.setBackground(gc.getDevice().getSystemColor(SWT.COLOR_RED));
//			imageGC.setBackground(gc.getDevice().getSystemColor(SWT.COLOR_GREEN));
//			imageGC.setBackground(gc.getDevice().getSystemColor(SWT.COLOR_BLUE));
			imageGC.fillRectangle(image.getBounds());
			imageGC.dispose();
			
			ImageData data = image.getImageData();
			for (int y = 0; y < data.height; y++) {
				for (int x = 0; x < data.width; x++) {
					data.setAlpha(x, y, 0xFF);
				}
			}
			image.dispose();
			image = new Image(gc.getDevice(), data);
			
			gc.setAdvanced(true);
			System.out.println(gc.getAdvanced());
			gc.drawImage(image, 100, 100);
			
			image.dispose();
		}
	});

	shell.open();
	while (!shell.isDisposed()) {
		if (!display.readAndDispatch())
			display.sleep();
	}
	display.dispose();
}
}