sl@0: /*
sl@0: * Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). 
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description:   Implementation of the base class for effects.
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: 
sl@0: // INCLUDE FILES
sl@0: 
sl@0: #ifdef _DEBUG
sl@0: #include <e32svr.h>
sl@0: #endif
sl@0: #include <AudioEffectBase.h>
sl@0: #include <MAudioEffectObserver.h>
sl@0: 
sl@0: // ============================ MEMBER FUNCTIONS ===============================
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEffect::CAudioEffect
sl@0: // C++ default constructor can NOT contain any code, that
sl@0: // might leave.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEffect::CAudioEffect()
sl@0:     : 	iEnabled(EFalse),
sl@0:     	iEnforced(EFalse),
sl@0:     	iHaveUpdateRights(ETrue)
sl@0:     {
sl@0:     }
sl@0: 
sl@0: 
sl@0: // Destructor
sl@0: EXPORT_C CAudioEffect::~CAudioEffect()
sl@0:     {
sl@0: 	iObservers.Close();
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEffect::IsEnable
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C TBool CAudioEffect::IsEnabled() const
sl@0:     {
sl@0: 	return iEnabled;
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEffect::Enable
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C void CAudioEffect::EnableL()
sl@0:     {
sl@0: 	iEnabled = ETrue;
sl@0: 	ApplyL();
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEffect::Disable
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C void CAudioEffect::DisableL()
sl@0:     {
sl@0: 	iEnabled = EFalse;
sl@0: 	ApplyL();
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEffect::Enforce
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C void CAudioEffect::EnforceL(
sl@0: 	TBool aEnforced )
sl@0:     {
sl@0: 	iEnforced = aEnforced;
sl@0: 	ApplyL();
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEffect::HaveUpdateRights
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C TBool CAudioEffect::HaveUpdateRights() const
sl@0:     {
sl@0: 	return iHaveUpdateRights;
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEffect::IsEnforced
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C TBool CAudioEffect::IsEnforced() const
sl@0:     {
sl@0: 	return iEnforced;
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CVolume::RegisterObserverL
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C void CAudioEffect::RegisterObserverL(
sl@0: 	MAudioEffectObserver& aObserver )
sl@0: 	{
sl@0: 	User::LeaveIfError(iObservers.Append(&aObserver));
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CVolume::UnRegisterObserver
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C void CAudioEffect::UnRegisterObserver(
sl@0: 	MAudioEffectObserver& aObserver )
sl@0: 	{
sl@0: 	TInt index = iObservers.Find(&aObserver);
sl@0: 	if( index != KErrNotFound )
sl@0: 		{
sl@0: 		iObservers.Remove(index);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: // ========================== OTHER EXPORTED FUNCTIONS =========================
sl@0: 
sl@0: // End of File