package org.eclipse.swt.snippets;

import org.eclipse.swt.graphics.*;
import org.eclipse.swt.widgets.*;

public class Snippet389 {

public static void main (String [] args) {
	Display display = new Display ();
	Shell shell = new Shell(display);
	shell.setText("Snippet 389");
	ImageFileNameProvider fileNameProvider = zoom -> {
		if (zoom == 200) {
			return "src/org/eclipse/swt/snippets/eclipse32.png";
		} else if (zoom == 100) {
			return "src/org/eclipse/swt/snippets/eclipse16.png";
		}
		return null;
	};
	Image image = new Image(display, fileNameProvider);
	shell.addPaintListener(e -> {
		e.gc.drawImage(image, 0, 0, 32, 32);
		e.gc.drawImage(image, 0, 0, 16, 16, 0, 50, 32, 32);
	});

	shell.addPaintListener(e -> {
		e.gc.setTransform(new Transform(display, 2, 0, 0, 2, 0, 0));
		e.gc.drawImage(image, 25, 0, 16, 16);
		e.gc.drawImage(image, 0, 0, 16, 16, 25, 25, 16, 16);
		e.gc.setTransform(null);
	});

	shell.open ();

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