/*

* 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:    Icon manager for visuals

*

*/

/**

 * @internal reviewed 31/07/2007 by Rowland Cook

 */

/**

 * @internal reviewed 04/07/2007 by M Byrne

 */

#ifndef C_GLXVIDEOICONMANAGER_H

#define C_GLXVIDEOICONMANAGER_H

#include <e32base.h>

#include "glxiconmanager.h"

class CAlfVisual;

class CAlfTexture;

/**

 *  CGlxVideoIconManager

 * 

 *  Icon manager for visuals

 *  Handles adding video overlay if required.

 *  

 * @author Dave Holland

 */

NONSHARABLE_CLASS ( CGlxVideoIconManager )  : public CGlxIconManager

	{

public:

    /**

      * Static constructor

      * @param aMediaList reference to media list

      * @param aVisualList reference to associated visual list

      * @return pointer to CGlxVideoIconManager instance

      */

	IMPORT_C static CGlxVideoIconManager* NewL(MGlxMediaList& aMediaList,

	                                            MGlxVisualList& aVisualList);

	/**

	  * Destructor

	  */

	~CGlxVideoIconManager();

private: // From MGlxMediaListObserver    

    /// See @ref MGlxMediaListObserver::HandleAttributesAvailableL

    void HandleAttributesAvailableL(TInt aItemIndex,     

        const RArray<TMPXAttribute>& aAttributes, MGlxMediaList* aList);

private: // from MGlxVisualListObserver

    void HandleFocusChangedL( TInt aFocusIndex, TReal32 aItemsPerSecond, 

                MGlxVisualList* aList, NGlxListDefs::TFocusChangeType aType );

	/** @see MGlxVisualListObserver::HandleVisualAddedL */

	void HandleVisualAddedL( CAlfVisual* aVisual, TInt aIndex, MGlxVisualList* aList );

private:

    /**

      * Constructor

      * @param aMediaList reference to media list

      * @param aVisualList reference to associated visual list

      */

	CGlxVideoIconManager(MGlxMediaList& aMediaList, 

	                            MGlxVisualList& aVisualList);

    /**

      * 2nd phase constructor

      */	                            

	void ConstructL();

	/**

	  * Check if thumbnail attribute is present for specifed vis.

	  * If not add icon if present or add default icon

	  * @param aIndex index of item in media list

	  */ 

    void AddIconIfVideoL( TInt aIndex );   

private:

    // Texture for large video overlay not owned

    CAlfTexture*    iLargeVideoIcon;

    // Texture for small video overlay not owned

    CAlfTexture*    iSmallVideoIcon;

    // focus index

    TInt iFocusIndex;

	};

#endif // C_GLXVIDEOICONMANAGER_H