// Copyright (c) 1999-2009 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:

// Licensed under US Patent No 4,558,302 and foreign counterparts

// 

//

#ifndef GIFCONVERT_H

#define GIFCONVERT_H

#include <icl/imageplugin.h>

#include "GIFcodec.h"

#include "GIFFormat.h"

class CGifReadCodec;

class TGifImageInformation;

class CGifDecoder : public CImageDecoderPlugin

	{

public:

	static CGifDecoder* NewL();

	~CGifDecoder();

	// From CImageDecoder

	void ImageType(TInt aFrameNumber, TUid& aImageType, TUid& aImageSubType) const;

	TInt NumberOfImageComments() const;

	HBufC* ImageCommentL(TInt aCommentNumber) const;

protected:

	// From CImageDecoder

	CFrameInfoStrings* FrameInfoStringsL(RFs& aFs, TInt aFrameNumber);

private:

	CGifDecoder();

	void ReadFormatL();

	// From CImageDecoderPlugin

	void ScanDataL();

private:

	TInt iReadBlockLength;

	TGifFileInformation iFileInfo;

	TInt iGlobalPaletteEntries;

	TRgb iGlobalPalette[KGifColorTableMaxEntries];

	TBool iLoadingFrame;

	};

// CGifEncoder

class CGifScaler;

class CGifWriteCodec;

class CGifEncoder : public CImageEncoderPlugin

	{

public:

	static CGifEncoder* NewL();

	virtual ~CGifEncoder();

	const CPalette* Palette() const;

protected:

	//from CImageEncoderPlugin

	void PrepareEncoderL(const CFrameImageData* aFrameImageData);

	void UpdateHeaderL();

	void WriteExifDataL(TRequestStatus*& aScaleCompletionStatus);

private:

	void ConstructL();

	CGifEncoder();

private:

	CPalette* iPalette;

	CFbsBitmap* iDest;

	CGifScaler* iGifScaler;

	};

#endif // GIFCONVERT_H