1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.diagram.symbolcontribution;
14 import org.simantics.diagram.symbollibrary.IModifiableSymbolGroup;
15 import org.simantics.diagram.symbollibrary.ISymbolGroupListener;
16 import org.simantics.utils.datastructures.ListenerList;
19 * @author Tuukka Lehtonen
21 public class ModifiableSymbolGroup extends SymbolGroup implements IModifiableSymbolGroup {
23 ListenerList<ISymbolGroupListener> listeners = new ListenerList<ISymbolGroupListener>(ISymbolGroupListener.class);
25 public ModifiableSymbolGroup(Object identification, String name) {
26 super(identification, name);
29 public ModifiableSymbolGroup(Object identification, String name, String description) {
30 super(identification, name, description);
34 public void addListener(ISymbolGroupListener listener) {
35 listeners.add(listener);
39 public void removeListener(ISymbolGroupListener listener) {
40 listeners.remove(listener);
43 protected void fireListeners() {
44 for (ISymbolGroupListener listener : listeners.getListeners()) {
45 listener.itemsChanged(this);
50 public String toString() {
51 return super.toString() + "[listener count=" + listeners.size() + "]";