/*

* Copyright (c) 2007 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:  Base class for video preference popups

*

*/

#ifndef     C_VTUIPREFPOPUPBASE_H

#define     C_VTUIPREFPOPUPBASE_H

#include    "cvtuipopupbase.h"

class MVtEngCameraPreferences;

class CVtUiFeatureManager;

/*

*  CVtUiPrefPopupBase

*

*  Base class for video preference popups

*

*  @since S60 v3.2

*/

class CVtUiPrefPopupBase : public CVtUiPopupBase

    {

public:

    /**

    * Destructor

    */

    ~CVtUiPrefPopupBase();

public: // from CVtUiPopupBase

    /**

    * @see CVtUiPopupBase::HandleControlEventL

    */

    void HandleControlEventL( 

        CCoeControl* aControl,TCoeEvent aEventType );

    /**

    * @see CVtUiPopupBase::UpdatePopupL

    */    

    void UpdatePopupL();

private: // from base class

    /**

    * @see CVtUiPopupBase::OfferKeyEventL

    */  

    TKeyResponse OfferKeyEventL( const TKeyEvent& aEvent, 

            TEventCode aCode );

protected: // new functions

    // Does the actual viewfinder adjusting

    void AdjustVideoL( TInt aValue );

    // from base class CVtUiPopupBase::DoActivateL()

    void DoActivateL();

    // Gets current adjustvalue

    virtual TInt CurrentValue() = 0;

protected:

    /**

    * Constructor

    */

    CVtUiPrefPopupBase( CVtUiFeatureManager& aFeatureManager,

        TVtUiBlockListBitField aBitField, TComponentId aComponentId,

         TInt aCmdId );

     /**

     * 2nd constructor

     */

    void BaseConstructL();

protected:    

    // Pointer to camera preferences

    MVtEngCameraPreferences* iCameraPref;

    // Reference to feature manager

    CVtUiFeatureManager& iFeatureManager;

    // Engine command id

    TInt iEngineCommandId;

    // Current value

    TInt iCurrent;

    };

#endif // C_VTUIPREFPOPUPBASE_H