--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtengines/videoteleng/Inc/Extensions/CVtEngCameraPreferences.h	Mon Nov 23 14:47:47 2009 +0200
@@ -0,0 +1,153 @@
+/*
+* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Videoteleng Camera Preferences extension 
+*
+*/
+
+
+#ifndef CVTENGCAMERAPREFERENCES_H
+#define CVTENGCAMERAPREFERENCES_H
+
+//  INCLUDES
+#include "VtEngPanic.h"
+#include "CVtEngSettings.h"
+#include "VtEngUtils.h"
+#include "CVtEngOperation.h"
+
+#include <cvtlogger.h>
+#include <e32base.h>
+
+#include <mvtengcamerapreferences.h>
+#include "CVtEngExtensionBase.h"
+
+// FORWARD DECLARATIONS
+class CVSDataProvider;
+class MVtEngCameraPreferencesObserver;
+
+// CLASS DECLARATION
+
+/**
+*  Videoteleng extension base class.
+*
+*  @lib videoteleng.lib
+*  @since S60 v3.2
+*/
+NONSHARABLE_CLASS ( CVtEngCameraPreferences ): public CVtEngExtensionBase,
+											 public MVtEngCameraPreferences
+    {
+    public: //Constructor and destructor.
+        
+        /**
+        * Symbian two-phase constructor.
+        * @return engine extension instance
+        */
+        static CVtEngCameraPreferences* NewL();
+
+        /**
+        * Destructor.
+        */
+        ~CVtEngCameraPreferences();
+        
+    public: // from base class CVtEngExtensionBase
+        
+       	/**
+        * @see CVtEngExtensionBase::GetInterface
+        */
+        virtual TAny* GetInterface();
+        
+       	/**
+        * @see CVtEngExtensionBase::HandleL
+        */
+        virtual TBool HandleL( CVtEngOperation* aOp );
+        
+        /**
+        * @see CVtEngExtensionBase::ValidateCommand
+        */
+        virtual TBool ValidateCommand( const TVtEngCommandId aCommandId );
+        
+    public: // from base class MVtEngCameraPreferences
+        
+        /**
+        * @see MVtEngCameraPreferences::GetColorTone
+        */
+        virtual TInt GetColorTone( 
+        	MVtEngCameraPreferences::TColorTone& aColortone ) const; 
+        
+        /**
+        * @see MVtEngCameraPreferences::GetSupportedColorTones
+        */
+        virtual TInt GetSupportedColorTones( 
+        	TUint32& aSupportedColorTones ) const;
+        
+        /**
+        * @see MVtEngCameraPreferences::GetWhiteBalance
+        */
+        virtual TInt GetWhiteBalance( 
+        	MVtEngCameraPreferences::TWhiteBalance& aWhiteBalance ) const;     
+        
+        /**
+        * @see MVtEngCameraPreferences::GetSupportedWhiteBalanceModes
+        */
+        virtual TInt GetSupportedWhiteBalanceModes( 
+        	TUint32& aWhiteBalance ) const; 
+        
+        /**
+        * @see MVtEngCameraPreferences::GetBrightness
+        */  
+        virtual TInt GetBrightness( TInt& aBrightness) const; 
+        
+        /**
+        * @see MVtEngCameraPreferences::GetContrast
+        */  
+        virtual TInt GetContrast( TInt& aContrast ) const;
+    
+    public:
+           
+        /**
+        * Sets data provider to camera prefefrences
+        * @param aProvider pointer to current active data provider
+        * @param aObserver reference to observer
+        */
+        virtual void SetProvider( CVSDataProvider* aProvider,
+            MVtEngCameraPreferencesObserver& aObserver );
+
+        /**
+        * Detaches observer from preference instance.
+        * @param aObserver reference to observer
+        */
+        void Detach( MVtEngCameraPreferencesObserver& aObserver );
+
+    private:
+    
+        /*
+        * C++ default constructor.
+        */        
+        CVtEngCameraPreferences();
+        
+        /**
+        * Symbian two-phase constructor.
+        */
+        void ConstructL();
+    
+    private:
+        
+        // Video source data provider pointer
+        CVSDataProvider* iProvider;
+            
+        // Preference observer pointer
+        MVtEngCameraPreferencesObserver* iObserver;
+
+    };
+        
+#endif //CVTENGCAMERAPREFERENCES_H    
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