/*

* Copyright (c) 2009 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: 

*

*/

#ifndef MLCBRIGHTNESSCONTROL_H

#define MLCBRIGHTNESSCONTROL_H

// INCLUDES

#include <e32std.h>

// CLASS DECLARATION

/**

* Class for adjusting the brightness of a video.

*/

class MLcBrightnessControl

    {

    public:

        /**

        * Returns the minimum brightness level.

        * @return the minimum brightness level

        */

        virtual TInt MinLcBrightnessL() = 0;

        /**

        * Returns the maximum brightness level.

        * @return the maximum brightness level

        */

        virtual TInt MaxLcBrightnessL() = 0;

        /**

        * Returns the current brightness level.

        * @return the current brightness level

        */

        virtual TInt LcBrightnessL() = 0;

        /**

        * Sets the brightness level.

        * @pre aValue >= MinLcBrightnessL && aValue <= MaxLcBrightnessL

        * @param aValue the new brightness level

        */

        virtual void SetLcBrightnessL( TInt aValue ) = 0;

        /**

        * Increments the brightness level by one step.

        */

        virtual void IncreaseLcBrightnessL() = 0;

        /**

        * Decrements the brightness level by one step.

        */

        virtual void DecreaseLcBrightnessL() = 0; 

    };

#endif // MLCBRIGHTNESSCONTROL_H

// end of file