/*

* Copyright (c) 2005 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:  Manipulates the doppler effect of the SoundSource3D.

*

*/

// INCLUDE FILES

#include <jdebug.h>

#include "cammsaudiodopplercontrol.h"

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// CAMMSAudioDopplerControl::NewLC

// Two-phased constructor.

// -----------------------------------------------------------------------------

CAMMSAudioDopplerControl* CAMMSAudioDopplerControl::NewLC(CMMAPlayer* aPlayer)

{

    CAMMSAudioDopplerControl* self =

        new(ELeave) CAMMSAudioDopplerControl(aPlayer);

    CleanupStack::PushL(self);

    return self;

}

// Destructor

CAMMSAudioDopplerControl::~CAMMSAudioDopplerControl()

{

    DEBUG("AMMS::CAMMSAudioDopplerControl::~CAMMSAudioDopplerControl");

    // Perform DeallocateControl, if the state change has not yet performed it.

    DeallocateControl();

    delete(CAudioEffect*)iDopplerEffect;

}

// -----------------------------------------------------------------------------

// CAMMSAudioDopplerControl::PrepareControlL

// Function which is called after the correct state is set in Player.

// -----------------------------------------------------------------------------

//

void CAMMSAudioDopplerControl::PrepareControlL()

{

    // Perform the action only for the first time, skip if called afterwards

    if (!iDopplerEffect)

    {

        DEBUG("AMMS::CAMMSAudioDopplerControl::PrepareControlL");

        CCustomCommandUtility* customCommandUtility =

            CreateCustomCommandUtilityL();

        // Set the base class location effect as CSourceDoppler

        // Effect API takes the ownership of customCommandUtility.

        iDopplerEffect = CSourceDoppler::NewL(customCommandUtility);

    }

}

// -----------------------------------------------------------------------------

// CAMMSAudioDopplerControl::DeallocateControl

// Function which is called after the correct state is set in Player.

// -----------------------------------------------------------------------------

//

void CAMMSAudioDopplerControl::DeallocateControl()

{

    if (iDopplerEffect)

    {

        DEBUG("AMMS::CAMMSAudioDopplerControl::DeallocateControl");

        // Doppler for Audio can be disabled or enabled

        if (Enabled())

        {

            TRAPD(err, iDopplerEffect->DisableL());

            if (err != KErrNone)

            {

                // The only even theoritically possible error code here would be

                // KErrAccessDenied which is a result from Effect API calling

                // ApplyL method without having update rights, but since the

                // Effect is already created, that situation can be discarded.

            }

        }

        // Delete the Effect API class.

        delete(CAudioEffect*)iDopplerEffect;

        iDopplerEffect = NULL;

    }

}

const TDesC& CAMMSAudioDopplerControl::ClassName() const

{

    return KAMMSAudioDopplerControl;

}

// -----------------------------------------------------------------------------

// CAMMSAudioDopplerControl::CAMMSAudioDopplerControl

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

CAMMSAudioDopplerControl::CAMMSAudioDopplerControl(

    CMMAPlayer* aPlayer)

        : CAMMSDopplerControl(aPlayer)

{

}

//  End of File