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123 lines
3.7 KiB
123 lines
3.7 KiB
14 years ago
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/****************************************************************************
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**
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** Declaration of QEventLoop class
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the kernel module of the Qt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free Qt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.QPL
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** included in the packaging of this file. Licensees holding valid Qt
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** Commercial licenses may use this file in accordance with the Qt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#ifndef QEVENTLOOP_H
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#define QEVENTLOOP_H
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#ifndef QT_H
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#include "qobject.h"
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#include "qsocketnotifier.h"
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#endif // QT_H
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class QEventLoopPrivate;
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class QSocketNotifier;
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class QTimer;
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#ifdef Q_WS_MAC
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struct timeval; //stdc struct
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struct TimerInfo; //internal structure (qeventloop_mac.cpp)
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#endif
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#if defined(QT_THREAD_SUPPORT)
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class QMutex;
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#endif // QT_THREAD_SUPPORT
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class Q_EXPORT QEventLoop : public QObject
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{
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Q_OBJECT
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public:
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QEventLoop( QObject *parent = 0, const char *name = 0 );
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~QEventLoop();
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enum ProcessEvents {
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AllEvents = 0x00,
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ExcludeUserInput = 0x01,
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ExcludeSocketNotifiers = 0x02,
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WaitForMore = 0x04
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};
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typedef uint ProcessEventsFlags;
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void processEvents( ProcessEventsFlags flags, int maxtime );
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virtual bool processEvents( ProcessEventsFlags flags );
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virtual bool hasPendingEvents() const;
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virtual void registerSocketNotifier( QSocketNotifier * );
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virtual void unregisterSocketNotifier( QSocketNotifier * );
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void setSocketNotifierPending( QSocketNotifier * );
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int activateSocketNotifiers();
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int activateTimers();
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int timeToWait() const;
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virtual int exec();
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virtual void exit( int retcode = 0 );
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virtual int enterLoop();
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virtual void exitLoop();
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virtual int loopLevel() const;
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virtual void wakeUp();
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signals:
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void awake();
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void aboutToBlock();
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private:
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#if defined(Q_WS_MAC)
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friend QMAC_PASCAL void qt_mac_select_timer_callbk(EventLoopTimerRef, void *);
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int macHandleSelect(timeval *);
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void macHandleTimer(TimerInfo *);
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#endif // Q_WS_MAC
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// internal initialization/cleanup - implemented in various platform specific files
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void init();
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void cleanup();
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virtual void appStartingUp();
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virtual void appClosingDown();
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// data for the default implementation - other implementations should not
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// use/need this data
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QEventLoopPrivate *d;
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friend class QApplication;
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};
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#endif // QEVENTLOOP_H
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