qtmobility/plugins/sensors/symbian/accelerometersym.cpp
changeset 4 90517678cc4f
child 5 453da2cfceef
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/plugins/sensors/symbian/accelerometersym.cpp	Mon May 03 13:18:40 2010 +0300
@@ -0,0 +1,119 @@
+/****************************************************************************
+ **
+ ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+ ** All rights reserved.
+ ** Contact: Nokia Corporation (qt-info@nokia.com)
+ **
+ ** This file is part of the Qt Mobility Components.
+ **
+ ** $QT_BEGIN_LICENSE:LGPL$
+ ** No Commercial Usage
+ ** This file contains pre-release code and may not be distributed.
+ ** You may use this file in accordance with the terms and conditions
+ ** contained in the Technology Preview License Agreement accompanying
+ ** this package.
+ **
+ ** 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, Nokia gives you certain additional
+ ** rights.  These rights are described in the Nokia Qt LGPL Exception
+ ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+ **
+ ** If you have questions regarding the use of this file, please contact
+ ** Nokia at qt-info@nokia.com.
+ **
+ **
+ **
+ **
+ **
+ **
+ **
+ **
+ ** $QT_END_LICENSE$
+ **
+ ****************************************************************************/
+
+// Internal Headers
+#include "accelerometersym.h"
+
+/**
+ * set the id of the accelerometer sensor
+ */
+const char *CAccelerometerSensorSym::id("sym.accelerometer");
+
+/**
+ * Factory function, this is used to create the accelerometer object
+ * @return CAccelerometerSensorSym if successful, leaves on failure
+ */
+CAccelerometerSensorSym* CAccelerometerSensorSym::NewL(QSensor *sensor)
+    {
+    CAccelerometerSensorSym* self = new (ELeave) CAccelerometerSensorSym(sensor);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop();
+    return self;    
+    }
+
+/**
+ * Destructor
+ * Closes the backend resources
+ */
+CAccelerometerSensorSym::~CAccelerometerSensorSym()
+    {
+    // Release the backend resources
+    Close();
+    }
+
+/**
+ * Default constructor
+ */
+CAccelerometerSensorSym::CAccelerometerSensorSym(QSensor *sensor):CSensorBackendSym(sensor)
+        {
+        setReading<QAccelerometerReading>(&iReading);
+        iBackendData.iSensorType = KSensrvChannelTypeIdAccelerometerXYZAxisData;    
+        //Disable property listening
+        SetListening(ETrue, EFalse);
+        }
+
+/*
+ * RecvData is used to retrieve the sensor reading from sensor server
+ * It is implemented here to handle accelerometer sensor specific
+ * reading data and provides conversion and utility code
+ */
+void CAccelerometerSensorSym::RecvData(CSensrvChannel &aChannel)
+    {
+    TPckg<TSensrvAccelerometerAxisData> accelerometerpkg( iData );
+    TInt ret = aChannel.GetData( accelerometerpkg );
+    if(KErrNone != ret)
+        {
+        // If there is no reading available, return without setting
+        return;
+        }
+    // Get a lock on the reading data
+    iBackendData.iReadingLock.Wait();
+    // Set qt mobility accelerometer reading with data from sensor server
+    iReading.setX(iData.iAxisX);
+    iReading.setY(iData.iAxisY);
+    iReading.setZ(iData.iAxisZ);
+    // Set the timestamp
+    iReading.setTimestamp(iData.iTimeStamp.Int64());
+    // Release the lock
+    iBackendData.iReadingLock.Signal();
+    }
+
+/**
+ * Second phase constructor
+ * Initialize the backend resources
+ */
+void CAccelerometerSensorSym::ConstructL()
+    {
+    //Initialize the backend resources
+    InitializeL();
+    }
+