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#include "tapsensorsym.h"

/**
 * set the id of the Tap sensor
 */
char const * const 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;
    }
/*
 * DataReceived 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::DataReceived(CSensrvChannel &aChannel, TInt aCount, TInt /*aDataLost*/)
    {
    ProcessData(aChannel, aCount, iData);
    }

void CTapSensorSym::ProcessReading()
    {
    // 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_Both);
                }
                // Indicates a tap on Y axis
            else if(iData.iDirection==(KSensrvAccelerometerDirectionYplus|KSensrvAccelerometerDirectionYminus))
                {
                iReading.setTapDirection(QTapReading::Y_Both);
                }
                // Indicates a tap on Z axis
            else if(iData.iDirection==(KSensrvAccelerometerDirectionZplus|KSensrvAccelerometerDirectionZminus))
                {
                iReading.setTapDirection(QTapReading::Z_Both);
                }
                // 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();
    // Notify that a reading is available
    newReadingAvailable();
    }

/**
 * Second phase constructor
 * Initialize the backend resources
 */
void CTapSensorSym::ConstructL()
    {
    InitializeL();
    }