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tqtinterface/qtinterface/qt4/Qt/qtesteventloop.h

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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtTest module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QTESTEVENTLOOP_H
#define QTESTEVENTLOOP_H
#include <QtTest/qtest_global.h>
#include <QtCore/qcoreapplication.h>
#include <QtCore/qeventloop.h>
#include <QtCore/qobject.h>
#include <QtCore/qpointer.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Test)
class Q_TESTLIB_EXPORT QTestEventLoop : public QObject
{
Q_OBJECT
public:
inline QTestEventLoop(QObject *aParent = 0)
: QObject(aParent), inLoop(false), _timeout(false), timerId(-1), loop(0) {}
inline void enterLoop(int secs);
inline void changeInterval(int secs)
{ killTimer(timerId); timerId = startTimer(secs * 1000); }
inline bool timeout() const
{ return _timeout; }
inline static QTestEventLoop &instance()
{
static QPointer<QTestEventLoop> testLoop;
if (testLoop.isNull())
testLoop = new QTestEventLoop(QCoreApplication::instance());
return *static_cast<QTestEventLoop *>(testLoop);
}
public Q_SLOTS:
inline void exitLoop();
protected:
inline void timerEvent(QTimerEvent *e);
private:
bool inLoop;
bool _timeout;
int timerId;
QEventLoop *loop;
};
inline void QTestEventLoop::enterLoop(int secs)
{
Q_ASSERT(!loop);
QEventLoop l;
inLoop = true;
_timeout = false;
timerId = startTimer(secs * 1000);
loop = &l;
l.exec();
loop = 0;
}
inline void QTestEventLoop::exitLoop()
{
if (timerId != -1)
killTimer(timerId);
timerId = -1;
if (loop)
loop->exit();
inLoop = false;
}
inline void QTestEventLoop::timerEvent(QTimerEvent *e)
{
if (e->timerId() != timerId)
return;
_timeout = true;
exitLoop();
}
QT_END_NAMESPACE
QT_END_HEADER
#endif