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     2  **

     3  ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4  ** All rights reserved.

     5  ** Contact: Nokia Corporation (qt-info@nokia.com)

     6  **

     7  ** This file is part of the Qt Mobility Components.

     8  **

     9  ** $QT_BEGIN_LICENSE:LGPL$

    10  ** No Commercial Usage

    11  ** This file contains pre-release code and may not be distributed.

    12  ** You may use this file in accordance with the terms and conditions

    13  ** contained in the Technology Preview License Agreement accompanying

    14  ** this package.

    15  **

    16  ** GNU Lesser General Public License Usage

    17  ** Alternatively, this file may be used under the terms of the GNU Lesser

    18  ** General Public License version 2.1 as published by the Free Software

    19  ** Foundation and appearing in the file LICENSE.LGPL included in the

    20  ** packaging of this file.  Please review the following information to

    21  ** ensure the GNU Lesser General Public License version 2.1 requirements

    22  ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23  **

    24  ** In addition, as a special exception, Nokia gives you certain additional

    25  ** rights.  These rights are described in the Nokia Qt LGPL Exception

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    29  ** Nokia at qt-info@nokia.com.

    30  **

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    33  **

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    35  **

    36  **

    37  **

    38  ** $QT_END_LICENSE$

    39  **

    40  ****************************************************************************/

    41 

    42 // Internal Headers

    43 #include "accelerometersym.h"

    44 

    45 /**

    46  * set the id of the accelerometer sensor

    47  */

    48 const char *CAccelerometerSensorSym::id("sym.accelerometer");

    49 

    50 /**

    51  * Factory function, this is used to create the accelerometer object

    52  * @return CAccelerometerSensorSym if successful, leaves on failure

    53  */

    54 CAccelerometerSensorSym* CAccelerometerSensorSym::NewL(QSensor *sensor)

    55     {

    56     CAccelerometerSensorSym* self = new (ELeave) CAccelerometerSensorSym(sensor);

    57     CleanupStack::PushL(self);

    58     self->ConstructL();

    59     CleanupStack::Pop();

    60     return self;    

    61     }

    62 

    63 /**

    64  * Destructor

    65  * Closes the backend resources

    66  */

    67 CAccelerometerSensorSym::~CAccelerometerSensorSym()

    68     {

    69     // Release the backend resources

    70     Close();

    71     }

    72 

    73 /**

    74  * Default constructor

    75  */

    76 CAccelerometerSensorSym::CAccelerometerSensorSym(QSensor *sensor):CSensorBackendSym(sensor)

    77         {

    78         setReading<QAccelerometerReading>(&iReading);

    79         iBackendData.iSensorType = KSensrvChannelTypeIdAccelerometerXYZAxisData;    

    80         //Disable property listening

    81         SetListening(ETrue, EFalse);

    82         }

    83 

    84 /*

    85  * RecvData is used to retrieve the sensor reading from sensor server

    86  * It is implemented here to handle accelerometer sensor specific

    87  * reading data and provides conversion and utility code

    88  */

    89 void CAccelerometerSensorSym::RecvData(CSensrvChannel &aChannel)

    90     {

    91     TPckg<TSensrvAccelerometerAxisData> accelerometerpkg( iData );

    92     TInt ret = aChannel.GetData( accelerometerpkg );

    93     if(KErrNone != ret)

    94         {

    95         // If there is no reading available, return without setting

    96         return;

    97         }

    98     // Get a lock on the reading data

    99     iBackendData.iReadingLock.Wait();

   100     // Set qt mobility accelerometer reading with data from sensor server

   101     iReading.setX(iData.iAxisX);

   102     iReading.setY(iData.iAxisY);

   103     iReading.setZ(iData.iAxisZ);

   104     // Set the timestamp

   105     iReading.setTimestamp(iData.iTimeStamp.Int64());

   106     // Release the lock

   107     iBackendData.iReadingLock.Signal();

   108     }

   109 

   110 /**

   111  * Second phase constructor

   112  * Initialize the backend resources

   113  */

   114 void CAccelerometerSensorSym::ConstructL()

   115     {

   116     //Initialize the backend resources

   117     InitializeL();

   118     }

   119