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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtSensors module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSHAKERECOGNIZER_H
#define QSHAKERECOGNIZER_H
#include <QDebug>
#include <QTimer>
#include <qsensorgesturerecognizer.h>
#include "qtsensorgesturesensorhandler.h"
QT_BEGIN_NAMESPACE
struct ShakeData {
qreal x;
qreal y;
qreal z;
};
class QShake2SensorGestureRecognizer : public QSensorGestureRecognizer
{
Q_OBJECT
public:
enum ShakeDirection {
ShakeUndefined = 0,
ShakeLeft,
ShakeRight,
ShakeUp,
ShakeDown
};
QShake2SensorGestureRecognizer(QObject *parent = 0);
~QShake2SensorGestureRecognizer();
void create();
QString id() const;
bool start();
bool stop();
bool isActive();
QTimer *timer;
int timerTimeout;
Q_SIGNALS:
void shakeLeft();
void shakeRight();
void shakeUp();
void shakeDown();
private slots:
void accelChanged(QAccelerometerReading *reading);
void timeout();
private:
QAccelerometerReading *accelReading;
bool active;
ShakeDirection shakeDirection;
ShakeData prevData;
ShakeData currentData;
bool checkForShake(ShakeData prevSensorData, ShakeData currentSensorData, qreal threshold);
bool shaking;
int shakeCount;
int threshold;
bool isNegative(qreal num);
};
QT_END_NAMESPACE
#endif // QSHAKERECOGNIZER_H
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