/****************************************************************************
**
** Copyright (C) 2014 BlackBerry Limited. All rights reserved.
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** This file is part of the QtSensors module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL21$
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** accordance with the commercial license agreement provided with the
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** following information to ensure the GNU Lesser General Public License
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****************************************************************************/

#ifndef QDISTANCESENSOR_H
#define QDISTANCESENSOR_H

#include <QtSensors/qsensor.h>

QT_BEGIN_NAMESPACE

class QDistanceReadingPrivate;

class Q_SENSORS_EXPORT QDistanceReading : public QSensorReading
{
    Q_OBJECT
    Q_PROPERTY(qreal distance READ distance)
    DECLARE_READING(QDistanceReading)
public:
    qreal distance() const;
    void setDistance(qreal distance);
};

class Q_SENSORS_EXPORT QDistanceFilter : public QSensorFilter
{
public:
    virtual bool filter(QDistanceReading *reading) = 0;
private:
    bool filter(QSensorReading *reading) Q_DECL_OVERRIDE;
};

class Q_SENSORS_EXPORT QDistanceSensor : public QSensor
{
    Q_OBJECT
public:
    explicit QDistanceSensor(QObject *parent = Q_NULLPTR);
    ~QDistanceSensor();
    QDistanceReading *reading() const;
    static char const * const type;

private:
    Q_DISABLE_COPY(QDistanceSensor)
};

QT_END_NAMESPACE

#endif
