// 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:

//

#ifndef __RENDERSTAGEMANAGER_H__

#define __RENDERSTAGEMANAGER_H__

#include <graphics/wsrenderstage.h>

/**

@file

@internalTechnology

@prototype

*/

class CRenderStageManager : public CBase

	{

public:

	/**

	Connect to the Render Stage Plugins.

	Sets up a render stage chain hierarchy for a given screen and returns a

	pointer to the first render stage.  The caller is responsible for calling

	Release on the returned render stage when it is no longer needed, such as

	during shutdown.

	@param	aScreenNumber	Render stage chains created on a per-screen basis

	@param	aScreen			Screen object for the given screen number

	@param	aScreenRedraw	Mechanism to allow render stages to call back into

							the redraw store MWsScreenRedraw to for example cause

							a re-scheduling of render stages to execute.

	*/

	static CWsRenderStage *ConnectL(TInt aScreenNumber, MWsScreen *aScreen, MWsScreenRedraw *aScreenRedraw);

	/**

	Release Render Stage Resources.

	De-allocates the resources for the given render stage chain.

	@param	aRenderStage	Top-level render stage previously rendered by a

							call to @c ConnectL

	*/

	static void Release(CWsRenderStage *aRenderStage);

	};

#endif // __RENDERSTAGEMANAGER_H__