1 /* 2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 /* 27 * This source code is provided to illustrate the usage of a given feature 28 * or technique and has been deliberately simplified. Additional steps 29 * required for a production-quality application, such as security checks, 30 * input validation and proper error handling, might not be present in 31 * this sample code. 32 */ 33 34 35 package com.sun.tools.example.debug.gui; 36 37 import java.util.*; 38 39 import javax.swing.AbstractListModel; 40 41 public class MonitorListModel extends AbstractListModel { 42 43 private final List<String> monitors = new ArrayList<String>(); 44 45 MonitorListModel(Environment env) { 46 47 // Create listener. 48 MonitorListListener listener = new MonitorListListener(); 49 env.getContextManager().addContextListener(listener); 50 51 //### remove listeners on exit! 52 } 53 54 @Override 55 public Object getElementAt(int index) { 56 return monitors.get(index); 57 } 58 59 @Override 60 public int getSize() { 61 return monitors.size(); 62 } 63 64 public void add(String expr) { 65 monitors.add(expr); 66 int newIndex = monitors.size()-1; // order important 67 fireIntervalAdded(this, newIndex, newIndex); 68 } 69 70 public void remove(String expr) { 71 int index = monitors.indexOf(expr); 72 remove(index); 73 } 74 75 public void remove(int index) { 76 monitors.remove(index); 77 fireIntervalRemoved(this, index, index); 78 } 79 80 public List<String> monitors() { 81 return Collections.unmodifiableList(monitors); 82 } 83 84 public Iterator<?> iterator() { 85 return monitors().iterator(); 86 } 87 88 private void invalidate() { 89 fireContentsChanged(this, 0, monitors.size()-1); 90 } 91 92 private class MonitorListListener implements ContextListener { 93 94 @Override 95 public void currentFrameChanged(final CurrentFrameChangedEvent e) { 96 invalidate(); 97 } 98 } 99 }