// 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:

//

#ifndef __PPMCONVERT_H__

#define __PPMCONVERT_H__

#include "icl/imageplugin.h"

#include "PPM1Codec.h"

#include "icl/imageconversionextension.h"

#include "pluginextensionmanager.h"

// Decoder.

class CPpmReadCodec;

class CPpmDecoder : public CImageDecoderPlugin

	{

friend class CPpmReadCodec;

public:

	static CPpmDecoder* NewL();

	virtual ~CPpmDecoder();

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

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

	virtual void GetExtensionL(TUid aExtUid, MImageConvExtension*& aExtPtr);

	virtual void SetClippingRectL(const TRect* aClipRect);

	virtual TInt GetDestinationSize(TSize& aSize, TInt aFrameNumber);

private:

	CPpmDecoder();

	void InternalizeHeaderL(TLex8& aLex);

	void SkipCommentAndWhiteSpaceL(TLex8& aLex);

	void DoSkipCommentL(TLex8& aLex);

	TBool Compressed() const;

	void SetCompressed(TBool aCompressed);

	TBool InComment() const;

	void SetInComment(TBool aInComment);

	TInt DataShift() const;

	// From CImageDecoderPlugin

	void ScanDataL();

	// Called by ScanDataL.

	// Opens file, scans header and validates format.

	void ReadFormatL();

private:

	TInt iDataShift;

	TInt iMaxValue;

	TUint iFlags;

	enum TFlags

		{

		EFlagCompressed=0x01,

		EFlagInComment=0x02

		};

	CPluginExtensionManager* iExtensionManager; // owned

	};

// CPpmEncoder

class CPpmEncoder : public CImageEncoderPlugin

	{

public:

	static CPpmEncoder* NewL();

	virtual ~CPpmEncoder();

protected:

	// from CImageEncoderPlugin

	void PrepareEncoderL(const CFrameImageData* aFrameImageData);

	void UpdateHeaderL();

private:

	CPpmEncoder();

	};

#include "Ppm1Convert.inl"

#endif // __PPMCONVERT_H__