| /******************************************************************************* |
| * 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.jface.resource; |
| |
| import org.eclipse.swt.graphics.ImageData; |
| |
| /** |
| * The image descriptor for a missing image. |
| * <p> |
| * Use <code>MissingImageDescriptor.getInstance</code> to |
| * access the singleton instance maintained in an |
| * internal state variable. |
| * </p> |
| */ |
| class MissingImageDescriptor extends ImageDescriptor { |
| private static MissingImageDescriptor instance; |
| |
| /** |
| * Constructs a new missing image descriptor. |
| */ |
| private MissingImageDescriptor() { |
| super(); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on ImageDesciptor. |
| */ |
| public ImageData getImageData() { |
| return DEFAULT_IMAGE_DATA; |
| } |
| |
| /** |
| * Returns the shared missing image descriptor instance. |
| * |
| * @return the image descriptor for a missing image |
| */ |
| static MissingImageDescriptor getInstance() { |
| if (instance == null) { |
| instance = new MissingImageDescriptor(); |
| } |
| return instance; |
| } |
| } |