/*

* 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 MLCZOOMCONTROL_H

#define MLCZOOMCONTROL_H

// INCLUDES

#include <e32std.h>

// CLASS DECLARATION

/**

* Class for controlling the zoom level of a video player.

*/

class MLcZoomControl

    {

    public:

        /**

        * Returns the minimum zoom value.

        * @return the minimum zoom value

        */

        virtual TInt MinLcZoomL() = 0;

        /**

        * Returns the maximum zoom value.

        * @return the maximum zoom value

        */

        virtual TInt MaxLcZoomL() = 0;

        /**

        * Returns the current value for the zoom.

        * @return the current zoom value

        */

        virtual TInt LcZoomValueL() = 0;

        /**

        * Sets the current zoom level.

        * @pre aValue >= MinLcZoomL && aValue <= MaxLcZoomL

        * @param aValue the new zoom level

        */

        virtual void SetLcZoomValueL( TInt aValue ) = 0;

        /**

        * Zooms in by one step.

        */

        virtual void LcZoomInL() = 0;

        /**

        * Zooms out by one step.

        */

        virtual void LcZoomOutL() = 0; 

    };

#endif // MLCZOOMCONTROL_H

// end of file