diff options
Diffstat (limited to 'libjava/javax/swing/Timer.java')
| -rw-r--r-- | libjava/javax/swing/Timer.java | 283 |
1 files changed, 213 insertions, 70 deletions
diff --git a/libjava/javax/swing/Timer.java b/libjava/javax/swing/Timer.java index 2b2920a..529ad19 100644 --- a/libjava/javax/swing/Timer.java +++ b/libjava/javax/swing/Timer.java @@ -1,4 +1,4 @@ -/* Timer.java -- +/* Timer.java -- Copyright (C) 2002, 2004 Free Software Foundation, Inc. This file is part of GNU Classpath. @@ -35,22 +35,26 @@ this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. */ - package javax.swing; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.Serializable; import java.util.EventListener; - import javax.swing.event.EventListenerList; + +/** + * DOCUMENT ME! + */ public class Timer implements Serializable { + /** DOCUMENT ME! */ private static final long serialVersionUID = -1116180831621385484L; - + + /** DOCUMENT ME! */ protected EventListenerList listenerList = new EventListenerList(); - + // This object manages a "queue" of virtual actionEvents, maintained as a // simple long counter. When the timer expires, a new event is queued, // and a dispatcher object is pushed into the system event queue. When @@ -58,79 +62,127 @@ public class Timer implements Serializable // ActionEvents as have been queued, unless the timer is set to // coalescing mode, in which case it will fire only one ActionEvent. + /** DOCUMENT ME! */ private long queue; + + /** DOCUMENT ME! */ private Object queueLock = new Object(); + + /** DOCUMENT ME! */ + private Waker waker; + + /** + * DOCUMENT ME! + */ private void queueEvent() { synchronized (queueLock) { - queue++; - if (queue == 1) - SwingUtilities.invokeLater(new Runnable() { public void run() { drainEvents(); } }); + queue++; + if (queue == 1) + SwingUtilities.invokeLater(new Runnable() + { + public void run() + { + drainEvents(); + } + }); + } } + /** + * DOCUMENT ME! + */ private void drainEvents() { synchronized (queueLock) { - if (isCoalesce()) - { - if (queue > 0) - fireActionPerformed(); - } - else - { - while(queue > 0) - { - fireActionPerformed(); - queue--; - } - } - queue = 0; + if (isCoalesce()) + { + if (queue > 0) + fireActionPerformed(); + } + else + { + while (queue > 0) + { + fireActionPerformed(); + queue--; + } + } + queue = 0; } } - static boolean logTimers; + + /** DOCUMENT ME! */ boolean coalesce = true; + + /** DOCUMENT ME! */ boolean repeats = true; + + /** DOCUMENT ME! */ boolean running; + + /** DOCUMENT ME! */ int ticks; + + /** DOCUMENT ME! */ int delay; + + /** DOCUMENT ME! */ int initialDelay; - - private class Waker - extends Thread + + /** + * DOCUMENT ME! + */ + private class Waker extends Thread { + /** + * DOCUMENT ME! + */ public void run() { running = true; - try + try { - - sleep(initialDelay); - - while (running) - { - sleep(delay); - queueEvent(); - - if (logTimers) - System.out.println("javax.swing.Timer -> clocktick"); - - if (! repeats) - break; - } - running = false; - } - catch (Exception e) + sleep(initialDelay); + + while (running) + { + try + { + sleep(delay); + } + catch (InterruptedException e) + { + return; + } + queueEvent(); + + if (logTimers) + System.out.println("javax.swing.Timer -> clocktick"); + + if (! repeats) + break; + } + running = false; + } + catch (Exception e) { - System.out.println("swing.Timer::" + e); +// System.out.println("swing.Timer::" + e); } } } + /** + * Creates a new Timer object. + * + * @param d DOCUMENT ME! + * @param listener DOCUMENT ME! + */ public Timer(int d, ActionListener listener) { delay = d; @@ -139,123 +191,214 @@ public class Timer implements Serializable addActionListener(listener); } + /** + * DOCUMENT ME! + * + * @param c DOCUMENT ME! + */ public void setCoalesce(boolean c) { coalesce = c; } + /** + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ public boolean isCoalesce() { return coalesce; } + /** + * DOCUMENT ME! + * + * @param listener DOCUMENT ME! + */ public void addActionListener(ActionListener listener) { - listenerList.add (ActionListener.class, listener); + listenerList.add(ActionListener.class, listener); } - + + /** + * DOCUMENT ME! + * + * @param listener DOCUMENT ME! + */ public void removeActionListener(ActionListener listener) { - listenerList.remove (ActionListener.class, listener); + listenerList.remove(ActionListener.class, listener); } /** + * DOCUMENT ME! + * + * @param listenerType DOCUMENT ME! + * + * @return DOCUMENT ME! + * * @since 1.3 */ - public EventListener[] getListeners (Class listenerType) + public EventListener[] getListeners(Class listenerType) { - return listenerList.getListeners (listenerType); + return listenerList.getListeners(listenerType); } - + /** + * DOCUMENT ME! + * + * @return DOCUMENT ME! + * * @since 1.4 */ - public ActionListener[] getActionListeners () + public ActionListener[] getActionListeners() { - return (ActionListener[]) listenerList.getListeners (ActionListener.class); + return (ActionListener[]) listenerList.getListeners(ActionListener.class); } - protected void fireActionPerformed (ActionEvent event) + /** + * DOCUMENT ME! + * + * @param event DOCUMENT ME! + */ + protected void fireActionPerformed(ActionEvent event) { ActionListener[] listeners = getActionListeners(); - + for (int i = 0; i < listeners.length; i++) - { - listeners [i].actionPerformed (event); - } + listeners[i].actionPerformed(event); } - void fireActionPerformed () + /** + * DOCUMENT ME! + */ + void fireActionPerformed() { - fireActionPerformed (new ActionEvent (this, ticks++, "Timer")); + fireActionPerformed(new ActionEvent(this, ticks++, "Timer")); } + /** + * DOCUMENT ME! + * + * @param lt DOCUMENT ME! + */ public static void setLogTimers(boolean lt) { logTimers = lt; } + /** + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ public static boolean getLogTimers() { return logTimers; } - + + /** + * DOCUMENT ME! + * + * @param d DOCUMENT ME! + */ public void setDelay(int d) { delay = d; } + /** + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ public int getDelay() { return delay; } + /** + * DOCUMENT ME! + * + * @param i DOCUMENT ME! + */ public void setInitialDelay(int i) { initialDelay = i; } + /** + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ public int getInitialDelay() { return initialDelay; } + /** + * DOCUMENT ME! + * + * @param r DOCUMENT ME! + */ public void setRepeats(boolean r) { repeats = r; } + /** + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ public boolean isRepeats() { return repeats; } + /** + * DOCUMENT ME! + * + * @return DOCUMENT ME! + */ public boolean isRunning() { return running; } + /** + * DOCUMENT ME! + */ public void start() { if (isRunning()) - { - System.err.println("attempt to start a running timer"); - return; - } - new Waker().start(); + return; + waker = new Waker(); + waker.start(); } + /** + * DOCUMENT ME! + */ public void restart() { - synchronized (queueLock) - { - queue = 0; - } + stop(); start(); } + /** + * DOCUMENT ME! + */ public void stop() { running = false; + if (waker != null) + waker.interrupt(); + synchronized (queueLock) + { + queue = 0; + } } } |