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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef MAGNETOMETERSENSORSYM_H
#define MAGNETOMETERSENSORSYM_H
// QT Mobility Sensor API headers
#include <qsensorbackend.h>
#include <qmagnetometer.h>
// Internal Headers
#include "sensorbackendsym.h"
// Sensor client headers
// Magnetometer Sensor specific header
#include <sensrvmagnetometersensor.h>
QTM_USE_NAMESPACE
class CMagnetometerSensorSym: public CSensorBackendSym
{
public:
/**
* Factory function, this is used to create the magnetometer sensor object
* @return CMagnetometerSensorSym if successful, leaves on failure
*/
static CMagnetometerSensorSym* NewL(QSensor *sensor);
/**
* Destructor
* Closes the backend resources
*/
~CMagnetometerSensorSym();
/*
* Used to retrieve the current calibration level
* iCalibrationLevel is automatically updated whenever there is a change
* in calibration level
*/
qreal GetCalibrationLevel();
/**
* start is overridden to allow retrieving initial calibration property before
* and to set the required value type flags
*/
void start();
private:
/**
* Default constructor
*/
CMagnetometerSensorSym(QSensor *sensor);
/*
* DataReceived is used to retrieve the sensor reading from sensor server
* It is implemented here to handle magnetometer sensor specific
* reading data and provides conversion and utility code
*/
void DataReceived(CSensrvChannel &aChannel, TInt aCount, TInt aDataLost);
void ProcessReading();
/**
* HandlePropertyChange is called from backend, to indicate a change in property
*/
void HandlePropertyChange(CSensrvChannel &aChannel, const TSensrvProperty &aChangedProperty);
/**
* Second phase constructor
* Initialize the backend resources
*/
void ConstructL();
public:
/**
* Holds the id of the magnetometer
*/
static char const * const id;
private:
QMagnetometerReading iReading;
TSensrvMagnetometerAxisData iData;
qreal iCalibrationLevel;
bool iReturnGeoValues;
TInt iScaleRange;
};
#endif //MAGNETOMETERSENSORSYM_H
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