--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/plugins/sensors/symbian/sensorbackendsym.h Mon May 03 13:18:40 2010 +0300
@@ -0,0 +1,201 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef SENSORBACKENDSYM_H
+#define SENSORBACKENDSYM_H
+
+// QT Mobility Sensor API headers
+#include <qsensorbackend.h>
+
+// Standard Symbian Headers
+#include <e32std.h>
+#include <e32cmn.h>
+
+// Sensor client headers
+// Common Sensor Headers
+#include <sensrvchannel.h>
+#include <sensrvchannelinfo.h>
+#include <sensrvtypes.h>
+#include <sensrvchannelfinder.h>
+#include <sensrvdatalistener.h>
+#include <sensrvpropertylistener.h>
+
+// Internal Headers
+#include "sensorbackenddatasym.h"
+
+QTM_USE_NAMESPACE
+
+class CSensorBackendSym : public CBase, public QSensorBackend, public MSensrvDataListener, public MSensrvPropertyListener
+ {
+ public:
+ // From QSensorBackend
+
+ /**
+ * start is used to start listening to the sensor
+ */
+ virtual void start();
+
+ /*
+ * stop is used to stop listening to the sensor
+ */
+ virtual void stop();
+
+ /*
+ * Backend Destructor
+ */
+ ~CSensorBackendSym();
+
+ // From MSensrvDataListener
+
+ /*
+ * DataReceived is called by the Sensor Server when ever data is available in the
+ * sensor buffer
+ */
+ void DataReceived(CSensrvChannel &aChannel, TInt aCount, TInt aDataLost);
+
+ /**
+ * DataError is called to indicate an error, fatal errors are inrecoverable
+ */
+ void DataError(CSensrvChannel &aChannel, TSensrvErrorSeverity aError);
+
+ /*
+ * GetDataListenerInterfaceL is used to get a pointer to the sensor server backend
+ * It is not required for QT Mobility Sensors API
+ */
+ void GetDataListenerInterfaceL(TUid aInterfaceUid, TAny *&aInterface);
+
+ // From MSensrvProeprtyListener
+
+ /**
+ * Notification about the changed value of a property.
+ */
+ void PropertyChanged (CSensrvChannel &aChannel, const TSensrvProperty &aChangedProperty);
+
+ /**
+ * Property listening failed.
+ */
+ void PropertyError (CSensrvChannel &aChannel, TSensrvErrorSeverity aError);
+
+ /**
+ * Set a listener for the indication, if the setting of the property succeeded.
+ */
+ void SetPropertySuccessIndicationChanged (TSetPropertySuccessIndicator aIndication);
+
+ /*
+ * Returns a pointer to a specified interface extension - to allow future extension of this class without breaking binary compatibility.
+ */
+ void GetPropertyListenerInterfaceL (TUid aInterfaceUid, TAny *&aInterface);
+
+ /*
+ * To enable/disable data/property listening
+ */
+ void SetListening(TBool aDataListening, TBool aPropertyListening);
+
+ protected:
+
+ /*
+ * Default C++ constructor
+ */
+ CSensorBackendSym(QSensor *sensor);
+
+ /**
+ * Deriving class implements this if it requires property change notification
+ */
+ virtual void HandlePropertyChange(CSensrvChannel &aChannel, const TSensrvProperty &aChangedProperty);
+
+ /*
+ * RecvData is used to retrieve the sensor reading from sensor server
+ * It is implemented the the sensor concrete class and handles sensor specific
+ * reading data and provides conversion and utility code
+ */
+ virtual void RecvData(CSensrvChannel &aChannel) = 0;
+
+ /*
+ * InitializeL is used to create and init the sensor server objects
+ */
+ void InitializeL();
+
+ /*
+ * Close is used to release all the sensor server objects
+ * May change when error handling is supported by mobility apis
+ */
+ TInt Close();
+
+ /*
+ * FindSensorL is used to find if a specific sensor is available on the
+ * device, if FindSensorL leaves then the sensor is not supported
+ */
+ void FindSensorL();
+
+ /*
+ * OpenSensorChannelL is used to open the channel for sensor as indicated by
+ * iPrivateData.iChannelInfo
+ */
+ void OpenSensorChannelL();
+
+ /*
+ * CloseSensorChannel is used to close the sensor channel and release the
+ * resources
+ */
+ void CloseSensorChannelL();
+
+ /*
+ * Used to start listening to the sensor
+ */
+ void StartListeningL();
+
+ /*
+ * Used to stop listening to the sensor
+ */
+ void StopListeningL();
+
+ /*
+ * timerEvent is called when timer expires, this is used for supporting time based
+ * sensor update policies
+ */
+ void timerEvent(QTimerEvent *aTimerEvent);
+
+ protected:
+ TSensorBackendDataSym iBackendData;
+ };
+
+#endif //SENSORBACKENDSYM_H
+