bluetoothengine/btmac/inc/btmonocmdhandler/btmcvolume.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 26 Jan 2010 12:06:42 +0200
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child 10 0707dd69d236
permissions -rw-r--r--
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/*
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* Copyright (c) 2005 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:  volume handling
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*
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*/
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#ifndef BTMCVOLUME_H
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#define BTMCVOLUME_H
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// INCLUDES
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#include <e32base.h>
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#include <e32property.h> 
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#include "btmcactive.h"
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class CBtmcPhoneStatus;
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/**
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*  CBtmcVolume listens network status events (from RMobilePhone).
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*/
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NONSHARABLE_CLASS(CBtmcVolume) : public CBase, public MBtmcActiveObserver
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    {
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    public:
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        /**
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        * Two-phased constructor.
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        */
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        static CBtmcVolume* NewL(CBtmcPhoneStatus& aParent);
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        /**
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        * Destructor.
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        */
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        ~CBtmcVolume();
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        void SetSpeakerVolumeL(TInt aHfVol);
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        void SetMicrophoneVolumeL(TInt aHfVol);
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        TInt GetVolume();
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        void ActivateRemoteVolumeControl();
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        void DeActivateRemoteVolumeControl();        
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    private:  // From MBtmcActiveObserver
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        void RequestCompletedL(CBtmcActive& aActive, TInt aErr);
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        void CancelRequest(TInt aServiceId);
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    private:
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        /**
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        * C++ default constructor.
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        */
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        CBtmcVolume(CBtmcPhoneStatus& aParent);
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        /**
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        * C++ default constructor.
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        */
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        void ConstructL();
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        void DoSetSpeakerVolL( TInt aPrevPhVol );
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        /**
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        * Converts volume level (0..15 to 0..10).
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        * @param aVolume Volume level
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        * @return TInt
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        */
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        TInt HfToPhoneVolScale(TInt aHfVol);
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        /**
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        * Converts volume level (0..10 to 0..15).
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        * @param aVolume Volume level
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        * @return TInt
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        */
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        TInt PhoneToHfVolScale(TInt aPhoneVol);
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        TInt GetNewPhoneVol();
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    private:
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        enum TVolSyncAction
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            {
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            ESpeakerVolSubscribe,
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            ESpeakerVolSet,
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            };
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    private:
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        CBtmcPhoneStatus& iParent;
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        CBtmcActive* iActive; // owned
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        RProperty iVolLevelProperty; // owned
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        RProperty iVolKeyEventProperty; // owned
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        // current volume level of speaker
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        TInt iPhnSpkrVol; // phone speaker volume
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        TInt iAccSpkrVol; // Acc speaker volume in phone side scale
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		TInt iMaxSpkrVol; // Maximum volume level of the phone
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		TInt iStep;
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        TVolSyncAction iAction;
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    	TBool iVolCtrlActivated;
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    };
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#endif  // BTMCVOLUME_H
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// End of File
f63038272f30 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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