2 Copyright (C) 2002, 2004 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
41 import java.awt.event.ActionEvent;
42 import java.awt.event.ActionListener;
43 import java.io.Serializable;
44 import java.util.EventListener;
46 import javax.swing.event.EventListenerList;
48 public class Timer implements Serializable
50 private static final long serialVersionUID = -1116180831621385484L;
52 protected EventListenerList listenerList = new EventListenerList();
54 // This object manages a "queue" of virtual actionEvents, maintained as a
55 // simple long counter. When the timer expires, a new event is queued,
56 // and a dispatcher object is pushed into the system event queue. When
57 // the system thread runs the dispatcher, it will fire as many
58 // ActionEvents as have been queued, unless the timer is set to
59 // coalescing mode, in which case it will fire only one ActionEvent.
62 private Object queueLock = new Object();
63 private void queueEvent()
65 synchronized (queueLock)
69 SwingUtilities.invokeLater(new Runnable() { public void run() { drainEvents(); } });
73 private void drainEvents()
75 synchronized (queueLock)
80 fireActionPerformed();
86 fireActionPerformed();
95 static boolean logTimers;
96 boolean coalesce = true;
97 boolean repeats = true;
119 System.out.println("javax.swing.Timer -> clocktick");
128 System.out.println("swing.Timer::" + e);
133 public Timer(int d, ActionListener listener)
137 if (listener != null)
138 addActionListener(listener);
141 public void setCoalesce(boolean c)
146 public boolean isCoalesce()
151 public void addActionListener(ActionListener listener)
153 listenerList.add (ActionListener.class, listener);
156 public void removeActionListener(ActionListener listener)
158 listenerList.remove (ActionListener.class, listener);
164 public EventListener[] getListeners (Class listenerType)
166 return listenerList.getListeners (listenerType);
172 public ActionListener[] getActionListeners ()
174 return (ActionListener[]) listenerList.getListeners (ActionListener.class);
177 protected void fireActionPerformed (ActionEvent event)
179 ActionListener[] listeners = getActionListeners();
181 for (int i = 0; i < listeners.length; i++)
183 listeners [i].actionPerformed (event);
187 void fireActionPerformed ()
189 fireActionPerformed (new ActionEvent (this, ticks++, "Timer"));
192 public static void setLogTimers(boolean lt)
197 public static boolean getLogTimers()
202 public void setDelay(int d)
207 public int getDelay()
212 public void setInitialDelay(int i)
217 public int getInitialDelay()
222 public void setRepeats(boolean r)
227 public boolean isRepeats()
232 public boolean isRunning()
241 System.err.println("attempt to start a running timer");
247 public void restart()
249 synchronized (queueLock)