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/*
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* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: This is the definition of the StereoWidening proxy class.
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*
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*
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*/
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#ifndef CSTEREOWIDENINGPROXY_H
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#define CSTEREOWIDENINGPROXY_H
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// INCLUDES
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#include <e32base.h>
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#include "StereoWideningMessageTypes.h"
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#include <StereoWideningBase.h>
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#include <mmf/common/mmfcontrollerframework.h>
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#include <CustomCommandUtility.h>
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#include <MStereoWideningObserver.h>
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// FORWARD DECLARATION
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class CStereoWideningEventObserver;
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// CLASS DECLARATION
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/**
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* Interface class to be implemented by objects that receives callbacks from Stereo Widening Event Observer.
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*
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* @since 3.0
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*/
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class MStereoWideningCallback
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{
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public:
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/**
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* Invoked by the StereoWidening Event Observer when the StereoWidening object changes state
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* @since 3.0
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* @param aBuffer Buffer containing the StereoWidening data
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*/
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virtual void StereoWideningEvent( const TDesC8& aDataPckg ) = 0;
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};
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/**
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* This is the StereoWidening effect proxy class responsible for handling framework messages.
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*
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* @lib StereoWideningProxy.lib
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* @since 3.0
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*/
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class CStereoWideningProxy : public CStereoWidening,
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public MStereoWideningCallback
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{
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public: // Constructors and destructor
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/**
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*
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* Factory function for creating the StereoWidening proxy object.
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* @since 3.0
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* @param aMessageHandler reference to message handler
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* @param aCustomCommand reference to custom command utility
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* @return pointer to a StereoWidening proxy object
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*/
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IMPORT_C static CStereoWideningProxy* NewL( TMMFMessageDestinationPckg aMessageHandler,
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MCustomCommand& aCustomCommand,
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CCustomInterfaceUtility* aCustomInterfaceUtility );
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/**
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*
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* Destructor
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*/
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virtual ~CStereoWideningProxy();
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public: // functions from base class
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/**
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* From CAudioEffect
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* Apply effect settings
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* @since 3.0
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*/
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IMPORT_C virtual void ApplyL();
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public: // functions from MStereoWideningCallback
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/**
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* From MStereoWideningCallback
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* Changes to StereoWidening data has occured
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* @since 3.0
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* @param aBuffer Buffer containing serialized StereoWidening data
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*/
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void StereoWideningEvent( const TDesC8& aDataPckg );
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private:
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/**
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* Private C++ constructor for this class.
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* @since 3.0
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* @param aMessageHandler reference to message handler
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* @param aCustomCommand reference to custom command utility
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* @return -
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*/
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CStereoWideningProxy(TMMFMessageDestinationPckg aMessageHandler, MCustomCommand& aCustomCommand,
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CCustomInterfaceUtility* aCustomInterfaceUtility);
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/**
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* Second phase constructor for this class.
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* @since 3.0
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* @return -
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*/
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void ConstructL();
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/**
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* Start the active observer.
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* @since 3.0
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* @param -
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* @return -
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*/
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void StartObserver();
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private:
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// Pointer to custom command utility
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MCustomCommand* iCustomCommand;
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// Message handler handle
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TMMFMessageDestinationPckg iMessageHandler;
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// StereoWidening Event Observer
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CStereoWideningEventObserver* iStereoWideningEventObserver;
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// Pointer to the custom interface utility
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CCustomInterfaceUtility* iCustomInterfaceUtility;
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};
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#endif // of CSTEREOWIDENINGPROXY_H
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// End of File
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