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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QSHAKERECOGNIZER_H
#define QSHAKERECOGNIZER_H
#include <QDebug>
#include <QtSensors/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() override;
QString id() const override;
bool start() override;
bool stop() override;
bool isActive() override;
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);
qreal lapsedTime;
quint64 lastTimestamp;
bool timerActive;
};
QT_END_NAMESPACE
#endif // QSHAKERECOGNIZER_H
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