1 /*

     2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  volume handling

    15 *

    16 */

    17 

    18 

    19 #ifndef BTMCVOLUME_H

    20 #define BTMCVOLUME_H

    21 

    22 // INCLUDES

    23 #include <e32base.h>

    24 #include <e32property.h> 

    25 #include "btmcactive.h"

    26 

    27 class CBtmcPhoneStatus;

    28 

    29 /**

    30 *  CBtmcVolume listens network status events (from RMobilePhone).

    31 */

    32 NONSHARABLE_CLASS(CBtmcVolume) : public CBase, public MBtmcActiveObserver

    33     {

    34     public:

    35         /**

    36         * Two-phased constructor.

    37         */

    38         static CBtmcVolume* NewL(CBtmcPhoneStatus& aParent);

    39         

    40         /**

    41         * Destructor.

    42         */

    43         ~CBtmcVolume();

    44 

    45         void SetSpeakerVolumeL(TInt aHfVol);

    46         

    47         void SetMicrophoneVolumeL(TInt aHfVol);

    48         

    49         TInt GetVolume();

    50         

    51         void ActivateRemoteVolumeControl();

    52 

    53         void DeActivateRemoteVolumeControl();        

    54         

    55     private:  // From MBtmcActiveObserver

    56     

    57         void RequestCompletedL(CBtmcActive& aActive, TInt aErr);

    58         

    59         void CancelRequest(TInt aServiceId);

    60         

    61     private:

    62     

    63         /**

    64         * C++ default constructor.

    65         */

    66         CBtmcVolume(CBtmcPhoneStatus& aParent);

    67         

    68         /**

    69         * C++ default constructor.

    70         */

    71         void ConstructL();

    72         

    73         void DoSetSpeakerVolL( TInt aPrevPhVol );

    74         

    75         /**

    76         * Converts volume level (0..15 to 0..10).

    77         * @param aVolume Volume level

    78         * @return TInt

    79         */

    80         TInt HfToPhoneVolScale(TInt aHfVol);

    81 

    82         /**

    83         * Converts volume level (0..10 to 0..15).

    84         * @param aVolume Volume level

    85         * @return TInt

    86         */

    87         TInt PhoneToHfVolScale(TInt aPhoneVol);

    88 

    89         TInt GetNewPhoneVol();

    90 

    91     private:

    92         enum TVolSyncAction

    93             {

    94             ESpeakerVolSubscribe,

    95             ESpeakerVolSet,

    96             };

    97 

    98     private:

    99         CBtmcPhoneStatus& iParent;

   100     

   101         CBtmcActive* iActive; // owned

   102         

   103         RProperty iVolLevelProperty; // owned

   104         RProperty iVolKeyEventProperty; // owned

   105         

   106         // current volume level of speaker

   107         TInt iPhnSpkrVol; // phone speaker volume

   108         TInt iAccSpkrVol; // Acc speaker volume in phone side scale

   109 		TInt iMaxSpkrVol; // Maximum volume level of the phone

   110 		TInt iStep;

   111         TVolSyncAction iAction;

   112     	

   113     	TBool iVolCtrlActivated;

   114     };

   115 

   116 

   117 #endif  // BTMCVOLUME_H

   118 

   119 // End of File

   120