1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/mm_pub/audio_effects_api/inc/MAudioEffectObserver.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,56 @@
     1.4 +/*
     1.5 +* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). 
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description:  Definition of the Audio Effect Observer class.
    1.18 +*
    1.19 +*/
    1.20 +
    1.21 +
    1.22 +
    1.23 +#ifndef AUDIOEFFECTOBSERVER_H
    1.24 +#define AUDIOEFFECTOBSERVER_H
    1.25 +
    1.26 +// CLASS DECLARATION
    1.27 +
    1.28 +
    1.29 +/**
    1.30 +*  Interface class to be implemented by objects that are interested in receiving events from
    1.31 +*  audio effect.
    1.32 +*
    1.33 +*  @since 3.0
    1.34 +*/
    1.35 +class MAudioEffectObserver
    1.36 +    {
    1.37 +    public:
    1.38 +
    1.39 +		static const TUint KEnabled = 1;				// The effect is enabled.
    1.40 +		static const TUint KDisabled = 2;				// The effect is disabled
    1.41 +		static const TUint KEnforced = 3;				// The effect is enforced
    1.42 +		static const TUint KNotEnforced = 4;			// The effect is not enforced
    1.43 +		static const TUint KLostUpdateRights = 5;		// The effect has lost update rights
    1.44 +		static const TUint KGainedUpdateRights = 6;		// The effect has gained update rights
    1.45 +		static const TUint KSpecificEffectBase = 20;	// Offset to specific effect events
    1.46 +
    1.47 +        /**
    1.48 +        * Invoked by the audio effect object when the status of the audio effect has changed.
    1.49 +        * @since 3.0
    1.50 +        * @param aObservedEffect The effect that changed
    1.51 +        * @param aEvent The specific event Id of the effect that changed.
    1.52 +        */
    1.53 +        virtual void EffectChanged( const CAudioEffect* aObservedEffect, TUint8 aEvent ) = 0;
    1.54 +
    1.55 +    };
    1.56 +
    1.57 +#endif      // AUDIOEFFECTOBSERVER_H
    1.58 +
    1.59 +// End of File