| /******************************************************************************* |
| * Copyright (c) 2010 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.draw2d; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| /** |
| * Abstract implementation of the image figure. Implements attaching/detaching |
| * mechanism for <code>ImageChangedListener</code> |
| * |
| * @author aboyko |
| * @since 3.6 |
| */ |
| public abstract class AbstractImageFigure extends Figure implements |
| IImageFigure { |
| |
| private List imageListeners = new ArrayList(); |
| |
| public final void addImageChangedListener(ImageChangedListener listener) { |
| if (listener == null) { |
| throw new IllegalArgumentException(); |
| } |
| imageListeners.add(listener); |
| } |
| |
| public final void removeImageChangedListener(ImageChangedListener listener) { |
| if (listener == null) { |
| throw new IllegalArgumentException(); |
| } |
| imageListeners.remove(listener); |
| } |
| |
| protected final void notifyImageChanged() { |
| for (Iterator itr = imageListeners.iterator(); itr.hasNext();) { |
| ((ImageChangedListener) itr.next()).imageChanged(); |
| } |
| } |
| |
| } |