/*

* Copyright (c) 2008-2009 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:    Layout to mapping function adapter class

*

*/

#ifndef T_GLXLAYOUTHELPER_H

#define T_GLXLAYOUTHELPER_H

// INCLUDE DEPENDENCIES

#include <e32std.h>

#include <glxlayoutinfo.h>	// TGlxLayoutInfoResetter

// FORWARD DECLARES

class MGlxLayout;

/**

 * TGlxLayoutHelper

 *  

 * Sets the layout values from MGlxLayout and TGlxLayoutInfo

 * to a CHuiVisual.

 *

 * @lib glxlayouts.lib

 */

class TGlxLayoutHelper

	{

	public:

		/**

		 * Constructor

		 * @param aVisual the visual to layout

		 */

		IMPORT_C TGlxLayoutHelper( CAlfVisual& aVisual );

		/**

		 * Destructor.

		 */

		IMPORT_C ~TGlxLayoutHelper();

		/**

		 * This method should be called when the layout needs to be updated

		 * @param aIndex the current index for the visual this helper is mapped

		 * @param aScreenSize the screen size, passed on to the layout

		 */

		IMPORT_C void LayoutVisual( TInt aIndex, TSize aScreenSize );

		/**

         * This method should be called when the Panning (Drag)layout needs to be updated

         * @param aIndex the current index for the visual this helper is mapped

         * @param aScreenSize the screen size, passed on to the layout

         */

        IMPORT_C void LayoutPanVisual( TInt aIndex, TSize aScreenSize );

		/**

		 * Sets the layout chain to this adapter.

		 * @param aLayout layout to use

		 */

		IMPORT_C void SetLayout( MGlxLayout* aLayout );

		/**

		 * Gets the layout updated Size.

		 */

		IMPORT_C TSize GetUpdatedVisualSize( );

		/**

         * Gets the layout information.

		 */

        IMPORT_C TGlxLayoutInfo& GetUpdatedLayoutInfo( );

	private:

		/// Own: The layout info

		TGlxLayoutInfoResetter iLayoutInfo;

		/// Ref: The visual

		CAlfVisual& iVisual;

		/// Ref: The layout 

		MGlxLayout* iLayout;

	};

#endif // T_GLXLAYOUTHELPER_H