// Copyright (c) 2004-2009 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 __PNGPROCESSOR_H__

#define __PNGPROCESSOR_H__

/** 	@file

	@internalTechnology */

#include "ChunkProcessor.h"

class MInputStream;

class TMngChunk;

class CMngPlayer;

class CPngLayer;

class CPngProcessor: public CChunkProcessor 

	{

public:

	static CPngProcessor* NewL(CMngPlayer& aPlayer);

	~CPngProcessor();

// MChunkProcessor //	

	TBool OfferChunkType(const TChunkId& aChunkId);

	void Start(MInputStream& aInputStream, TRequestStatus& aRequest);

	TInt AddSubProcessor(MChunkProcessor& aSubProcessor);

protected:

	void DoRunL();

private:

	CPngProcessor(CMngPlayer& aPlayer);

private:

	TMNGChunkHeader 	iCurrentChunkHeader;

	CPngLayer*			iCurrentLayer;

	enum TState 

		{

		ECreateLayer=0, 

		EReadHeader, 

		EReadChunk

		}				iState;

	};

#endif // ndef __PNGPROCESSOR_H__