1 /*

     2 * Copyright (c) 2006 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:  Project file for EnhancedMediaClient Utility

    15 *

    16 */

    17 

    18 

    19 #ifndef VOLUMEEFFECTIMPL_H

    20 #define VOLUMEEFFECTIMPL_H

    21 

    22 #include <e32base.h>

    23 #include <VolumeControl.h>

    24 #include "EffectControlBase.h"

    25 

    26 

    27 namespace multimedia

    28     {

    29     class CVolumeEffect : public CBase,

    30                           public MVolumeControl,

    31                           public CEffectControlBase

    32         {

    33     public:

    34         CVolumeEffect();

    35         ~CVolumeEffect();

    36         TInt PostConstructor();

    37 

    38         // From MControl begins

    39         TInt AddObserver( MControlObserver& aObserver );

    40         TInt RemoveObserver( MControlObserver& aObserver );

    41         TUid Type();

    42         TControlType ControlType();  

    43         // From MControl ends

    44 

    45         // From MEffectControl begins

    46         TInt Apply();

    47         // From MEffectControl ends

    48         

    49         // From MVolumeEffect begins

    50         TInt GetMinVolume(TInt& aMinVolume);

    51         TInt GetMaxVolume(TInt& aMaxVolume);

    52         TInt GetDefaultVolume(TInt& aDefaultVolume);

    53         TInt GetVolume(TInt& aVolume);

    54         TInt SetVolume(TInt& aVolume);                        

    55         TInt SetVolumeRamp(TInt aInitialVol,TInt aFinalVol,TUint64& aDuration,TVolumeRampMode aMode); 

    56 

    57        // From MVolumeEffect ends

    58         

    59         // From CEffectControlBase begins

    60         void Event( TEffectControlEvent aEvent );

    61         // From CEffectControlBase ends

    62     

    63     private:

    64         TInt DoApply();        

    65     

    66     private:

    67         TInt iVolume;

    68         TInt64 iRampDuration;

    69         // Set when Client calls Apply

    70         TBool iEnabled;

    71         };

    72     } // namespace multimedia

    73 

    74 #endif // VOLUMEEFFECT_H

    75 

    76 // End of file