/****************************************************************************

**

** 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.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#include "tapsensorsym.h"

/**

 * set the id of the Tap sensor

 */

const char *CTapSensorSym::id("sym.tap");

/**

 * Factory function, this is used to create the tap sensor object

 * @return CTapSensorSym if successful, leaves on failure

 */

CTapSensorSym* CTapSensorSym::NewL(QSensor *sensor)

    {

    CTapSensorSym* self = new (ELeave) CTapSensorSym(sensor);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop();

    return self;    

    }

/**

 * Destructor

 * Closes the backend resources

 */

CTapSensorSym::~CTapSensorSym()

    {

    Close();

    }

/**

 * Default constructor

 */

CTapSensorSym::CTapSensorSym(QSensor *sensor):CSensorBackendSym(sensor)

    {

    setReading<QTapReading>(&iReading);    

    iBackendData.iSensorType = KSensrvChannelTypeIdAccelerometerDoubleTappingData;

    }

/*

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

 * It is implemented here to handle tap sensor specific

 * reading data and provides conversion and utility code

 */ 

void CTapSensorSym::RecvData(CSensrvChannel &aChannel)

    {

    TPckg<TSensrvTappingData> tappkg( iData );

    TInt ret = aChannel.GetData( tappkg );

    if(KErrNone != ret)

        {

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

        return;

        }

	// Get a lock on the reading data

    iBackendData.iReadingLock.Wait();

	//Mapping device tap sensor enum values to Qt tap sensor enum values

    switch (iData.iDirection)

        {

			// Indicates a tap on positive X axis

        case KSensrvAccelerometerDirectionXplus:

            {

            iReading.setTapDirection(QTapReading::X_Pos);

            }

            break;

			// Indicates a tap on negative X axis

        case KSensrvAccelerometerDirectionXminus:

            {

            iReading.setTapDirection(QTapReading::X_Neg);

            }

            break;

			// Indicates a tap on positive Y axis

        case KSensrvAccelerometerDirectionYplus:

            {

            iReading.setTapDirection(QTapReading::Y_Pos);

            }

            break;

			// Indicates a tap on negative Y axis

        case KSensrvAccelerometerDirectionYminus:

            {

            iReading.setTapDirection(QTapReading::Y_Neg);

            }

            break;    

			// Indicates a tap on positive Z axis

        case KSensrvAccelerometerDirectionZplus:

            {

            iReading.setTapDirection(QTapReading::Z_Pos);

            }

            break;

			// Indicates a tap on negative Z axis

        case KSensrvAccelerometerDirectionZminus:

            {

            iReading.setTapDirection(QTapReading::Z_Neg);

            }

            break;    

        default:

            {

				// Indicates a tap on X axis

            if(iData.iDirection==KSensrvAccelerometerDirectionXplus|KSensrvAccelerometerDirectionXminus)

                {

                iReading.setTapDirection(QTapReading::X);

                }

				// Indicates a tap on Y axis

            else if(iData.iDirection==KSensrvAccelerometerDirectionYplus|KSensrvAccelerometerDirectionYminus)

                {

                iReading.setTapDirection(QTapReading::Y);

                }

				// Indicates a tap on Z axis

            else if(iData.iDirection==KSensrvAccelerometerDirectionZplus|KSensrvAccelerometerDirectionZminus)

                {

                iReading.setTapDirection(QTapReading::Z);

                }

				 // Undefined value

            else

                {

                iReading.setTapDirection(QTapReading::Undefined);

                }

            }            

        }

	//Set the type of tap to be double tap

    iReading.setDoubleTap(true);

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

	    // Release the lock

    iBackendData.iReadingLock.Signal();

    }

/**

 * Second phase constructor

 * Initialize the backend resources

 */

void CTapSensorSym::ConstructL()

    {

    InitializeL();

    }