/*

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

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#include "xqdeviceorientation.h"

#include "cxesensoreventhandlersymbian.h"

#include "cxutils.h"

CxeSensorEventHandlerSymbian::CxeSensorEventHandlerSymbian()

: mOrientationSensor(NULL)

{

    CX_DEBUG_ENTER_FUNCTION();

    CX_DEBUG_EXIT_FUNCTION();

}

CxeSensorEventHandlerSymbian::~CxeSensorEventHandlerSymbian()

{

    CX_DEBUG_ENTER_FUNCTION();

    CX_DEBUG_EXIT_FUNCTION();

}

/*

* initializes and enables all supported sensor events

*/

void CxeSensorEventHandlerSymbian::init()

{

    CX_DEBUG_ENTER_FUNCTION();

    enableOrientationSensor();

    CX_DEBUG_EXIT_FUNCTION();

}

/*

* closes all supported sensors.

*/

void CxeSensorEventHandlerSymbian::deinit()

{

    CX_DEBUG_ENTER_FUNCTION();

    disableOrientationSensor();

    CX_DEBUG_EXIT_FUNCTION();

}

/*

 * Initializes and opens connection to recieve orientation sensor events

 */

void CxeSensorEventHandlerSymbian::enableOrientationSensor()

{

    CX_DEBUG_ENTER_FUNCTION();

    if( mOrientationSensor == NULL) {

        mOrientationSensor = new XQDeviceOrientation(this);

        if (mOrientationSensor) {

        // connect signals from orientationsensor, so we recieve events when orientation changes

        QObject::connect( mOrientationSensor,

                          SIGNAL(orientationChanged(XQDeviceOrientation::DisplayOrientation)),

                          this,SLOT(handleOrientationChanged(XQDeviceOrientation::DisplayOrientation)) );

        // open the sensor connection

        mOrientationSensor->open();

        }

    }

    CX_DEBUG_EXIT_FUNCTION();

}

/*

 * Closes and destroys connection to orientation sensor events.

 */

void CxeSensorEventHandlerSymbian::disableOrientationSensor()

{

    CX_DEBUG_ENTER_FUNCTION();

    if (mOrientationSensor) {

        mOrientationSensor->close();

        delete mOrientationSensor;

        mOrientationSensor = NULL;

    }

    CX_DEBUG_EXIT_FUNCTION();

}

/*

 * Closes and destroys connection to orientation sensor events.

 */

QVariant CxeSensorEventHandlerSymbian::sensorData(CxeSensorEventHandlerSymbian::SensorType type)

{

    CX_DEBUG_ENTER_FUNCTION();

    QVariant data;

    if (mOrientationSensor && type == CxeSensorEventHandler::OrientationSensor) {

        data = qVariantFromValue<Cxe::DeviceOrientation > (mapOrientationSensorData(mOrientationSensor->orientation()));

    }

    CX_DEBUG_EXIT_FUNCTION();

    return data;

}

/*

 * Emits signal whenever we receive data from orientation sensor.

 */

void CxeSensorEventHandlerSymbian::handleOrientationChanged(XQDeviceOrientation::DisplayOrientation sensorData)

{

    CX_DEBUG_ENTER_FUNCTION();

    QVariant data = qVariantFromValue<Cxe::DeviceOrientation > (mapOrientationSensorData(sensorData));

    emit sensorEvent(CxeSensorEventHandler::OrientationSensor, data);

    CX_DEBUG_EXIT_FUNCTION();

}

/*

* Maps sensor data to camera enums

*/

Cxe::DeviceOrientation

CxeSensorEventHandlerSymbian::mapOrientationSensorData(XQDeviceOrientation::DisplayOrientation sensorData)

{

    CX_DEBUG_ENTER_FUNCTION();

    Cxe::DeviceOrientation uiOrientation(Cxe::Orientation0);

    switch (sensorData) {

        case XQDeviceOrientation::OrientationDisplayUpwards:

        case XQDeviceOrientation::OrientationDisplayDownwards:

            uiOrientation = Cxe::OrientationNone;

            break;

        case XQDeviceOrientation::OrientationDisplayRightUp:

        case XQDeviceOrientation::OrientationUndefined:

            uiOrientation = Cxe::Orientation0;

            break;

        case XQDeviceOrientation::OrientationDisplayUp:

            uiOrientation = Cxe::Orientation90;

            break;

        case XQDeviceOrientation::OrientationDisplayLeftUp:

            uiOrientation = Cxe::Orientation180;

            break;

        case XQDeviceOrientation::OrientationDisplayDown:

            uiOrientation = Cxe::Orientation270;

            break;

        default:

            break;

    }

    CX_DEBUG_EXIT_FUNCTION();

    return uiOrientation;

}

// end of file