// Copyright (c) 2007-2009 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:

// Base class for window server render stages

// 

//

#include "Graphics/WsRenderStage.h"

// CWsRenderStage::CPimpl \\\\\\\\\\\\\\\\\\\\\\\\

/** @internalComponent

	@prototype

*/

NONSHARABLE_CLASS(CWsRenderStage::CPimpl): public CBase

	{

public:

	CWsRenderStage * Next() { return iNext; }

	void SetNext(CWsRenderStage * aNext) { iNext = aNext; }

private:

	CWsRenderStage * iNext;

	};

// CWsRenderStage \\\\\\\\\\\\\\\\\\\\\\\\

EXPORT_C CWsRenderStage::CWsRenderStage()

	{

	}

EXPORT_C CWsRenderStage::~CWsRenderStage()

	{

	// A given render stage is responsible for the deletion of its

	// children.

	delete iPimpl->Next();

	delete iPimpl;

	}

EXPORT_C void CWsRenderStage::BaseConstructL()

	{

	iPimpl = new (ELeave) CPimpl();

	}

EXPORT_C CWsRenderStage * CWsRenderStage::Next()

	{

	return iPimpl->Next();

	}

EXPORT_C void CWsRenderStage::SetNext(CWsRenderStage * aNext)

	{

	iPimpl->SetNext(aNext);

	}

EXPORT_C TAny * CWsRenderStage::ResolveObjectInterface(TUint aTypeId)

	{

	if (aTypeId == KCWsRenderStage)

		return this;

	else if(Next())

		return Next()->ResolveObjectInterface(aTypeId);

	else

		return NULL;

	}