qtmobility/src/sensors/qcompass.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QCOMPASS_H
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#define QCOMPASS_H
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#include "qsensor.h"
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QTM_BEGIN_NAMESPACE
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class QCompassReadingPrivate;
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class Q_SENSORS_EXPORT QCompassReading : public QSensorReading
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{
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    Q_OBJECT
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    Q_PROPERTY(qreal azimuth READ azimuth)
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    Q_PROPERTY(qreal calibrationLevel READ calibrationLevel)
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    DECLARE_READING(QCompassReading)
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public:
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    qreal azimuth() const;
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    void setAzimuth(qreal azimuth);
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    qreal calibrationLevel() const;
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    void setCalibrationLevel(qreal calibrationLevel);
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};
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class Q_SENSORS_EXPORT QCompassFilter : public QSensorFilter
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{
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public:
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    virtual bool filter(QCompassReading *reading) = 0;
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private:
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    bool filter(QSensorReading *reading) { return filter(static_cast<QCompassReading*>(reading)); }
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};
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class Q_SENSORS_EXPORT QCompass : public QSensor
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{
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    Q_OBJECT
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public:
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    explicit QCompass(QObject *parent = 0) : QSensor(QCompass::type, parent) {}
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    virtual ~QCompass() {}
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    QCompassReading *reading() const { return static_cast<QCompassReading*>(QSensor::reading()); }
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    static char const * const type;
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};
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QTM_END_NAMESPACE
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#endif
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