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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the Qt Mobility Components. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #ifndef MAGNETOMETERSENSORSYM_H |
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43 #define MAGNETOMETERSENSORSYM_H |
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44 |
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45 // QT Mobility Sensor API headers |
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46 #include <qsensorbackend.h> |
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47 #include <qmagnetometer.h> |
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48 |
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49 // Internal Headers |
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50 #include "sensorbackendsym.h" |
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51 |
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52 // Sensor client headers |
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53 // Magnetometer Sensor specific header |
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54 #include <sensrvmagnetometersensor.h> |
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55 |
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56 QTM_USE_NAMESPACE |
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57 |
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58 class CMagnetometerSensorSym: public CSensorBackendSym |
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59 { |
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60 public: |
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61 /** |
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62 * Factory function, this is used to create the magnetometer sensor object |
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63 * @return CMagnetometerSensorSym if successful, leaves on failure |
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64 */ |
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65 static CMagnetometerSensorSym* NewL(QSensor *sensor); |
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66 |
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67 /** |
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68 * Destructor |
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69 * Closes the backend resources |
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70 */ |
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71 ~CMagnetometerSensorSym(); |
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72 |
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73 /* |
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74 * Used to retrieve the current calibration level |
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75 * iCalibrationLevel is automatically updated whenever there is a change |
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76 * in calibration level |
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77 */ |
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78 qreal GetCalibrationLevel(); |
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79 |
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80 /** |
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81 * start is overridden to allow retrieving initial calibration property before |
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82 * and to set the required value type flags |
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83 */ |
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84 void start(); |
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85 |
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86 private: |
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87 /** |
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88 * Default constructor |
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89 */ |
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90 CMagnetometerSensorSym(QSensor *sensor); |
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91 |
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92 /* |
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93 * RecvData is used to retrieve the sensor reading from sensor server |
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94 * It is implemented here to handle magnetometer sensor specific |
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95 * reading data and provides conversion and utility code |
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96 */ |
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97 void RecvData(CSensrvChannel &aChannel); |
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98 |
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99 /** |
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100 * HandlePropertyChange is called from backend, to indicate a change in property |
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101 */ |
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102 void HandlePropertyChange(CSensrvChannel &aChannel, const TSensrvProperty &aChangedProperty); |
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103 |
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104 /** |
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105 * Second phase constructor |
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106 * Initialize the backend resources |
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107 */ |
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108 void ConstructL(); |
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109 |
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110 public: |
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111 /** |
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112 * Holds the id of the magnetometer |
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113 */ |
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114 static const char *id; |
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115 |
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116 private: |
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117 QMagnetometerReading iReading; |
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118 TSensrvMagnetometerAxisData iData; |
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119 qreal iCalibrationLevel; |
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120 bool iReturnGeoValues; |
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121 }; |
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122 |
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123 #endif //MAGNETOMETERSENSORSYM_H |