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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef AUTOSAVER_H
#define AUTOSAVER_H
#include <QtCore/QObject>
#include <QtCore/QBasicTimer>
#include <QtCore/QTime>
/*
This class will call the save() slot on the parent object when the parent changes.
It will wait several seconds after changed() to combining multiple changes and
prevent continuous writing to disk.
*/
class AutoSaver : public QObject {
Q_OBJECT
public:
AutoSaver(QObject *parent);
~AutoSaver();
void saveIfNeccessary();
public slots:
void changeOccurred();
protected:
void timerEvent(QTimerEvent *event);
private:
QBasicTimer m_timer;
QTime m_firstChange;
};
#endif // AUTOSAVER_H
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