// 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 EXIFDECODER_H

#define EXIFDECODER_H

#include "ifdgeneral.h"

#include "exifreaderwriter.h"

// CExifDecoder - provides specialisation of CExifReaderWriter for use within the 

// Jpeg Exif Decoder

class CExifDecoder : public CExifReaderWriter

	{	

public:

	static CExifDecoder* NewL(const TUint aApp1Size, const TUint8* aData);

	~CExifDecoder();

	// Setters (not supported - this is a decoder)

	TInt SetParam8(TUint aTag, TUint aIfd, HBufC8* aParam);

	TInt SetParam16(TUint aTag, TUint aIfd, HBufC16* aParam);

	TInt SetIntegerParam(TUint aTag, TUint aIfd, TInt aParam);

	TInt SetShortParam(TUint aTag, TUint aIfd, TUint16 aParam);

	TInt SetRationalParam(TUint aTag, TUint aIfd, TInt aNumerator, TInt aDenominator);	

	TInt SetIntegerArrayParam(TUint aTag, TUint aIfd, CArrayFix<TInt>& aParam);

	TInt SetShortArrayParam(TUint aTag, TUint aIfd, CArrayFix<TUint16>& aParam);

	TInt SetRationalArrayParam(TUint aTag, TUint aIfd, CArrayFix<TRational>& aParam);

private: // functions

	CExifDecoder();

	void ConstructL(const TUint8* aData, TUint aApp1Size);

	virtual void SetIfd1L();

private: // member variables

	};

#endif // EXIFDECODER_H