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:  Videoteleng Camera Preferences extension 

    15 *

    16 */

    17 

    18 

    19 #ifndef CVTENGCAMERAPREFERENCES_H

    20 #define CVTENGCAMERAPREFERENCES_H

    21 

    22 //  INCLUDES

    23 #include "VtEngPanic.h"

    24 #include "CVtEngSettings.h"

    25 #include "VtEngUtils.h"

    26 #include "CVtEngOperation.h"

    27 

    28 #include <cvtlogger.h>

    29 #include <e32base.h>

    30 

    31 #include <mvtengcamerapreferences.h>

    32 #include "CVtEngExtensionBase.h"

    33 

    34 // FORWARD DECLARATIONS

    35 class CVSDataProvider;

    36 class MVtEngCameraPreferencesObserver;

    37 

    38 // CLASS DECLARATION

    39 

    40 /**

    41 *  Videoteleng extension base class.

    42 *

    43 *  @lib videoteleng.lib

    44 *  @since S60 v3.2

    45 */

    46 NONSHARABLE_CLASS ( CVtEngCameraPreferences ): public CVtEngExtensionBase,

    47 											 public MVtEngCameraPreferences

    48     {

    49     public: //Constructor and destructor.

    50         

    51         /**

    52         * Symbian two-phase constructor.

    53         * @return engine extension instance

    54         */

    55         static CVtEngCameraPreferences* NewL();

    56 

    57         /**

    58         * Destructor.

    59         */

    60         ~CVtEngCameraPreferences();

    61         

    62     public: // from base class CVtEngExtensionBase

    63         

    64        	/**

    65         * @see CVtEngExtensionBase::GetInterface

    66         */

    67         virtual TAny* GetInterface();

    68         

    69        	/**

    70         * @see CVtEngExtensionBase::HandleL

    71         */

    72         virtual TBool HandleL( CVtEngOperation* aOp );

    73         

    74         /**

    75         * @see CVtEngExtensionBase::ValidateCommand

    76         */

    77         virtual TBool ValidateCommand( const TVtEngCommandId aCommandId );

    78         

    79     public: // from base class MVtEngCameraPreferences

    80         

    81         /**

    82         * @see MVtEngCameraPreferences::GetColorTone

    83         */

    84         virtual TInt GetColorTone( 

    85         	MVtEngCameraPreferences::TColorTone& aColortone ) const; 

    86         

    87         /**

    88         * @see MVtEngCameraPreferences::GetSupportedColorTones

    89         */

    90         virtual TInt GetSupportedColorTones( 

    91         	TUint32& aSupportedColorTones ) const;

    92         

    93         /**

    94         * @see MVtEngCameraPreferences::GetWhiteBalance

    95         */

    96         virtual TInt GetWhiteBalance( 

    97         	MVtEngCameraPreferences::TWhiteBalance& aWhiteBalance ) const;     

    98         

    99         /**

   100         * @see MVtEngCameraPreferences::GetSupportedWhiteBalanceModes

   101         */

   102         virtual TInt GetSupportedWhiteBalanceModes( 

   103         	TUint32& aWhiteBalance ) const; 

   104         

   105         /**

   106         * @see MVtEngCameraPreferences::GetBrightness

   107         */  

   108         virtual TInt GetBrightness( TInt& aBrightness) const; 

   109         

   110         /**

   111         * @see MVtEngCameraPreferences::GetContrast

   112         */  

   113         virtual TInt GetContrast( TInt& aContrast ) const;

   114     

   115     public:

   116            

   117         /**

   118         * Sets data provider to camera prefefrences

   119         * @param aProvider pointer to current active data provider

   120         * @param aObserver reference to observer

   121         */

   122         virtual void SetProvider( CVSDataProvider* aProvider,

   123             MVtEngCameraPreferencesObserver& aObserver );

   124 

   125         /**

   126         * Detaches observer from preference instance.

   127         * @param aObserver reference to observer

   128         */

   129         void Detach( MVtEngCameraPreferencesObserver& aObserver );

   130 

   131     private:

   132     

   133         /*

   134         * C++ default constructor.

   135         */        

   136         CVtEngCameraPreferences();

   137         

   138         /**

   139         * Symbian two-phase constructor.

   140         */

   141         void ConstructL();

   142     

   143     private:

   144         

   145         // Video source data provider pointer

   146         CVSDataProvider* iProvider;

   147             

   148         // Preference observer pointer

   149         MVtEngCameraPreferencesObserver* iObserver;

   150 

   151     };

   152         

   153 #endif //CVTENGCAMERAPREFERENCES_H