| /******************************************************************************* |
| * Copyright (c) 2000, 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.snippets; |
| |
| /* |
| * GC example snippet: create an icon (in memory) |
| * |
| * For a list of all SWT example snippets see |
| * http://www.eclipse.org/swt/snippets/ |
| */ |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Snippet70 { |
| |
| public static void main (String [] args) { |
| Display display = new Display (); |
| Color red = display.getSystemColor (SWT.COLOR_RED); |
| Color white = display.getSystemColor (SWT.COLOR_WHITE); |
| Color black = display.getSystemColor (SWT.COLOR_BLACK); |
| |
| Image image = new Image (display, 20, 20); |
| GC gc = new GC (image); |
| gc.setBackground (red); |
| gc.fillRectangle (5, 5, 10, 10); |
| gc.dispose (); |
| ImageData imageData = image.getImageData (); |
| |
| PaletteData palette = new PaletteData ( |
| new RGB [] { |
| new RGB (0, 0, 0), |
| new RGB (0xFF, 0xFF, 0xFF), |
| }); |
| ImageData maskData = new ImageData (20, 20, 1, palette); |
| Image mask = new Image (display, maskData); |
| gc = new GC (mask); |
| gc.setBackground (black); |
| gc.fillRectangle (0, 0, 20, 20); |
| gc.setBackground (white); |
| gc.fillRectangle (5, 5, 10, 10); |
| gc.dispose (); |
| maskData = mask.getImageData (); |
| |
| Image icon = new Image (display, imageData, maskData); |
| Shell shell = new Shell (display); |
| Button button = new Button (shell, SWT.PUSH); |
| button.setImage (icon); |
| button.setSize (60, 60); |
| shell.open (); |
| while (!shell.isDisposed ()) { |
| if (!display.readAndDispatch ()) display.sleep (); |
| } |
| icon.dispose (); |
| image.dispose (); |
| mask.dispose (); |
| display.dispose (); |
| } |
| } |