/*

* Copyright (c) 2005-2007 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:  Group for effect controls

*

*/

// INCLUDE FILES

#include <jdebug.h>

#include "cammsemcequalizerenvironmentalpresetutility.h"

const TInt KAMMSEMCPresetGranularity = 5;

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

// Constructors

CAMMSEMCEqualizerEnvironmentalPresetUtility::CAMMSEMCEqualizerEnvironmentalPresetUtility()

{

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility:: CAMMSEMCEqualizerEnvironmentalPresetUtility()");

}

// Destructor

CAMMSEMCEqualizerEnvironmentalPresetUtility::~CAMMSEMCEqualizerEnvironmentalPresetUtility()

{

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::~ +");

    delete iPresetNames;

    if (iEmptyEqualizerUtility)

    {

        TRAPD(err,iEmptyEqualizerUtility ->DisableEqualizerL());

        if (err)

        {

            // 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 Utility

            // class is already created, that situation can be discarded here.

        }

        delete iEmptyEqualizerUtility;

        iEmptyEqualizerUtility = NULL;

    }

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::~ -");

}

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

// CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetAtIndexL

// Gets the current preset.

// (other items were commented in a header).

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

void CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetAtIndexL(TDes& aPreset ,TInt iIndex)

{

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetAtIndexL +");

    // Return KNullDesC if no preset is set.

    if (iIndex >= 0)

    {

        TArray< TEfAudioEqualizerUtilityPreset > presetNames =

            iEmptyEqualizerUtility->Presets();

        aPreset = presetNames[ iIndex ].iPresetName ;

    }

    else

    {

        aPreset = KNullDesC;

    }

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetAtIndexL -");

}

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

// CAMMSEMCEqualizerEnvironmentalPresetUtility::PrepareEmptyEqualizerUtilitiesL

// Creates utilities that can be used to obtain preset names and preset data.

// (other items were commented in a header).

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

void CAMMSEMCEqualizerEnvironmentalPresetUtility::PrepareEmptyEqualizerUtilitiesL()

{

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::PrepareEmptyEqualizerUtilitiesL +");

    //Calling base class function to create and initialize the CMMFDevSound

    CreateAndInitializeDevSoundL();

    if (!iEmptyEqualizerUtility)

    {

        iEmptyEqualizerUtility =

            CAudioEqualizerUtility::NewL(*iMMFDevSound);

    }

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::PrepareEmptyEqualizerUtilitiesL -");

}

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

// CAMMSEMCEqualizerEnvironmentalPresetUtility::DeleteEmptyEqualizerUtilities

// Deletes utilities that are used to obtain preset names and preset data.

// (other items were commented in a header).

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

void CAMMSEMCEqualizerEnvironmentalPresetUtility::DeleteEmptyEqualizerUtilities()

{

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::DeleteEmptyEqualizerUtilities +");

    if (iEmptyEqualizerUtility)

    {

        TRAPD(err,iEmptyEqualizerUtility ->DisableEqualizerL());

        if (err)

        {

            // 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 Utility

            // class is already created, that situation can be discarded here.

        }

        delete iEmptyEqualizerUtility;

        iEmptyEqualizerUtility = NULL;

    }

    //Calling base class function to delete CMMFDevSound object to free memory

    DeleteDevSound();

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::DeleteEmptyEqualizerUtilities -");

}

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

// CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetNamesL

// Gets list of preset names available.

// (other items were commented in a header).

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

void CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetNamesL(

    CDesCArray& aPresetNames)

{

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetNamesL +");

    TArray< TEfAudioEqualizerUtilityPreset > presetNames =

        iEmptyEqualizerUtility->Presets();

    TInt presetCount = presetNames.Count();

    for (TInt i = 0; i < presetCount; i++)

    {

        aPresetNames.AppendL(presetNames[ i ].iPresetName);

    }

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::GetPresetNamesL -");

}

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

// CAMMSEMCEqualizerEnvironmentalPresetUtility::GetEqualizerAtPresetIndexL

// Gets list of preset names available.

// (other items were commented in a header).

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

CAudioEqualizer * CAMMSEMCEqualizerEnvironmentalPresetUtility::GetEqualizerAtPresetIndexL(TInt iIndex)

{

    DEBUG_INT("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::GetEqualizerAtPresetIndexL, index=%d",

              iIndex);

    __ASSERT_DEBUG(iIndex >= 0, User::Invariant());

    // Set the preset to the empty Environmental Equalizer utility.

    iEmptyEqualizerUtility->GetPresetL(iIndex);

    return &(iEmptyEqualizerUtility->Equalizer());

}

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

// CAMMSEMCEqualizerEnvironmentalPresetUtility::ConstructL

// Symbian 2nd phase constructor can leave.

// (other items were commented in a header).

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

void CAMMSEMCEqualizerEnvironmentalPresetUtility::ConstructL()

{

    DEBUG("AMMS::CAMMSEMCEqualizerEnvironmentalPresetUtility::ConstructL");

    iPresetNames = new(ELeave)CDesCArrayFlat(KAMMSEMCPresetGranularity);

    CAMMSEMCBaseMMFDevSound ::ConstructL();

}

//  End of File