/******************************************************************************** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.**** This file is part of the QtCore module of the Qt Toolkit.**** This file may be used under the terms of the GNU General Public** License version 2.0 as published by the Free Software Foundation** and appearing in the file LICENSE.GPL included in the packaging of** this file.  Please review the following information to ensure GNU** General Public Licensing requirements will be met:** http://www.trolltech.com/products/qt/opensource.html**** If you are unsure which license is appropriate for your use, please** review the following information:** http://www.trolltech.com/products/qt/licensing.html or contact the** sales department at sales@trolltech.com.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.******************************************************************************/#include "qbasictimer.h"#include "qcoreapplication.h"#include "qabstracteventdispatcher.h"/*!    \class QBasicTimer    \brief The QBasicTimer class provides timer events for objects.    \ingroup time    \ingroup events    This is a fast, lightweight, and low-level class used by Qt    internally. We recommend using the higher-level QTimer class    rather than this class if you want to use timers in your    applications.    To use this class, create a QBasicTimer, and call its start()    function with a timeout interval and with a pointer to a QObject    subclass. When the timer times out it will send a timer event to    the QObject subclass. The timer can be stopped at any time using    stop(). isActive() returns true for a timer that is running;    i.e. it has been started, has not reached the timeout time, and    has not been stopped. The timer's ID can be retrieved using    timerId().    The \l{widgets/wiggly}{Wiggly} example uses QBasicTimer to repaint    a widget at regular intervals.    \sa QTimer, QTimerEvent, QObject::timerEvent(), Timers, {Wiggly Example}*//*!    \fn QBasicTimer::QBasicTimer()    Contructs a basic timer.    \sa start()*//*!    \fn QBasicTimer::~QBasicTimer()    Destroys the basic timer.*//*!    \fn bool QBasicTimer::isActive() const    Returns true if the timer is running, has not yet timed    out, and has not been stopped; otherwise returns false.    \sa start() stop()*//*!    \fn int QBasicTimer::timerId() const    Returns the timer's ID.    \sa QTimerEvent::timerId()*//*!    \fn void QBasicTimer::start(int msec, QObject *object)    Starts (or restarts) the timer with a \a msec milliseconds    timeout.    The given \a object will receive timer events.    \sa stop() isActive() QObject::timerEvent() */void QBasicTimer::start(int msec, QObject *obj){   stop();   if (obj)       id = obj->startTimer(msec);}/*!    Stops the timer.    \sa start() isActive()*/void QBasicTimer::stop(){    if (id) {        QAbstractEventDispatcher *eventDispatcher = QAbstractEventDispatcher::instance();        if (eventDispatcher)            eventDispatcher->unregisterTimer(id);    }    id = 0;}