/*

* Copyright (c) 2007-2008 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:    Slideshow thumbnail context

 *

*/

#ifndef __SHWTHUMBNAILCONTEXT_H__

#define __SHWTHUMBNAILCONTEXT_H__

// INCLUDES

#include <e32std.h>

#include <e32base.h>

#include <glxmedialistiterator.h>

#include <glxthumbnailcontext.h>

// FORWARD DECLARATIONS

// CLASS DECLARATION

/**

 *  CShwThumbnailContext

 *

 */

NONSHARABLE_CLASS( CShwThumbnailContext ) : public CBase,

	public MGlxMediaListIterator

	{

	public:

		/**

		 * Constructor.

           * @param aIndex, the medialist index for the thumbnail to load

           * @param aSize, the size for the thumbnail

		 */

		static CShwThumbnailContext* NewLC( TInt aIndex, TSize aSize );

		/**

		 * Destructor.

		 */

		~CShwThumbnailContext();

	public: // the API

		/**

		 * Retrieve the index

		 * @return the index of the media list item associated with this context

		 */

		TInt Index();

		/// @ref MGlxFetchContext::RequestCountL

		TInt RequestCountL(const MGlxMediaList* aList) const;

		/**

		 * Retrieve the context.

		 * @return the context stored in this class

		 */

		MGlxFetchContext* Context();

	public:	// from MGlxMediaListIterator

		/// @ref MGlxMediaListIterator::SetToFirst

		void SetToFirst( const MGlxMediaList* aList );

		/// @ref MGlxMediaListIterator::operator++

		TInt operator++( TInt );

		/// @ref MGlxMediaListIterator::InRange

		TBool InRange( TInt aIndex ) const;

	private: // Constructors

        /**

         * C++ constructor.

         */

        CShwThumbnailContext( TInt aIndex, TSize aSize );

        /**

         * 2nd stage constructor

         */

        void ConstructL();

	private:

        /// Own: the high quality thumbnail context

        CGlxThumbnailContext* iHighQualityContext;

        /// Own: flag set to ETrue when all attributes have been iterated

        TBool iIterated;

        /// Own: the size of the thumbnail for this context

        TSize iSize;

        /// Own: the currrent focus item

        TInt iCurrentIndex;

	};

#endif // __SHWTHUMBNAILCONTEXT_H__