/*

* Copyright (c) 2004 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:   Implementation of the base class for effects.

*

*/

// INCLUDE FILES

#ifdef _DEBUG

#include <e32svr.h>

#endif

#include <AudioEffectBase.h>

#include <MAudioEffectObserver.h>

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

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

// CAudioEffect::CAudioEffect

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

// might leave.

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

//

EXPORT_C CAudioEffect::CAudioEffect()

    : 	iEnabled(EFalse),

    	iEnforced(EFalse),

    	iHaveUpdateRights(ETrue)

    {

    }

// Destructor

EXPORT_C CAudioEffect::~CAudioEffect()

    {

	iObservers.Close();

    }

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

// CAudioEffect::IsEnable

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

//

EXPORT_C TBool CAudioEffect::IsEnabled() const

    {

	return iEnabled;

    }

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

// CAudioEffect::Enable

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

//

EXPORT_C void CAudioEffect::EnableL()

    {

	iEnabled = ETrue;

	ApplyL();

    }

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

// CAudioEffect::Disable

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

//

EXPORT_C void CAudioEffect::DisableL()

    {

	iEnabled = EFalse;

	ApplyL();

    }

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

// CAudioEffect::Enforce

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

//

EXPORT_C void CAudioEffect::EnforceL(

	TBool aEnforced )

    {

	iEnforced = aEnforced;

	ApplyL();

    }

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

// CAudioEffect::HaveUpdateRights

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

//

EXPORT_C TBool CAudioEffect::HaveUpdateRights() const

    {

	return iHaveUpdateRights;

    }

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

// CAudioEffect::IsEnforced

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

//

EXPORT_C TBool CAudioEffect::IsEnforced() const

    {

	return iEnforced;

    }

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

// CVolume::RegisterObserverL

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

//

EXPORT_C void CAudioEffect::RegisterObserverL(

	MAudioEffectObserver& aObserver )

	{

	User::LeaveIfError(iObservers.Append(&aObserver));

	}

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

// CVolume::UnRegisterObserver

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

//

EXPORT_C void CAudioEffect::UnRegisterObserver(

	MAudioEffectObserver& aObserver )

	{

	TInt index = iObservers.Find(&aObserver);

	if( index != KErrNotFound )

		{

		iObservers.Remove(index);

		}

	}

// ========================== OTHER EXPORTED FUNCTIONS =========================

// End of File