1 /*******************************************************************************
\r
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
\r
3 * in Industry THTH ry.
\r
4 * All rights reserved. This program and the accompanying materials
\r
5 * are made available under the terms of the Eclipse Public License v1.0
\r
6 * which accompanies this distribution, and is available at
\r
7 * http://www.eclipse.org/legal/epl-v10.html
\r
10 * VTT Technical Research Centre of Finland - initial API and implementation
\r
11 *******************************************************************************/
\r
12 package org.simantics.browsing.ui.graph.impl;
\r
14 import org.eclipse.jface.resource.ImageDescriptor;
\r
15 import org.eclipse.swt.graphics.ImageData;
\r
16 import org.eclipse.swt.graphics.PaletteData;
\r
17 import org.eclipse.swt.graphics.RGB;
\r
20 * A simple 16x16 white image descriptor for a missing image.
\r
22 * Use <code>MissingImageDescriptor.getInstance</code> to
\r
23 * access the singleton instance maintained in an
\r
24 * internal state variable.
\r
27 public class MissingImageDescriptor extends ImageDescriptor {
\r
28 private static MissingImageDescriptor instance;
\r
30 protected static final ImageData IMAGE_DATA = new ImageData(16, 16,
\r
31 1, new PaletteData(new RGB[] { new RGB(255, 255, 255) }));
\r
34 * Constructs a new default image descriptor.
\r
36 private MissingImageDescriptor() {
\r
41 * Method declared on ImageDesciptor.
\r
44 public ImageData getImageData() {
\r
49 * Returns the shared default image descriptor instance.
\r
51 * @return the image descriptor for a default image
\r
53 public static MissingImageDescriptor getInstance() {
\r
54 if (instance == null) {
\r
55 instance = new MissingImageDescriptor();
\r