// Copyright (c) 1997-2009 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:

// concrete conversion for a Plain Text to Quoted Printable

// 

//

#if !defined(__TXCONV_H__)

#define __TXCONV_H__

#if !defined(__E32BASE_H__)

#include <e32base.h>

#endif

#if !defined(__TXTETEXT_H__)

#include <txtetext.h>

#endif

const TInt KEtextToText=0x100040C8;

const TUid KUidEtextToText={KEtextToText};

const TInt KTextToEtext=0x100040C7;

const TUid KUidTextToEtext={KTextToEtext};

const TInt KTextToEtextNoTrim=0x10281B4C;

const TUid KUidTextToEtextNoTrim={KTextToEtextNoTrim};

class CFileStore;

class CStreamDictionary;

//

// Classes declared in this file

class TTextTran;

	class TTextTranToEra;

	class TTextTranFromEra;

NONSHARABLE_CLASS(CEtToTxtCnv) : public CConverterBase2

	{

public:

	CEtToTxtCnv();

	~CEtToTxtCnv();

public: // from CConverterBase2

	void ConvertObjectAL(RReadStream& aReadStream, RWriteStream& aWriteStream,MConverterUiObserver* aObserver=NULL);

	TBool DoConvertL();

	TInt Capabilities();

	TUid Uid();

private:

	RReadStream* iReadStream;

	TTextTranFromEra* iTextTranFromEra;

	TInt iPos;

	TInt iLength;

	};

NONSHARABLE_CLASS(CTxtToEtCnv) : public CConverterBase2

	{

public:

	CTxtToEtCnv();

	CTxtToEtCnv(TBool aNoTrim);

	~CTxtToEtCnv();

public: // from CConverterBase2

	void ConvertObjectAL(RReadStream& aReadStream, RWriteStream& aWriteStream, MConverterUiObserver* aObserver=NULL);

	TBool DoConvertL();

	TInt Capabilities();

	TUid Uid();

private:

	RReadStream* iReadStream;

	RWriteStream* iWriteStream;

	TTextTranToEra* iTextTranToEra;

	TInt iLength;

	TInt iPos;

	TBool iNoTrim;

	};

class TTextTran

	{

	// Text converter

	//

public:

//	virtual void Translate(TDes& aBuf)=0;

	void SetTranslationMode(CPlainText::TTextOrganisation aTextOrganisation);

	CPlainText::TTextOrganisation TranslationMode()const;

protected:

	TTextTran(CPlainText::TTextOrganisation aTextOrganisation);

protected:

	CPlainText::TTextOrganisation iTransMode;  // Paragraph or Line

	TText* iReadPtr;

	TText* iWritePtr;

	};

class TTextTranToEra : public TTextTran

	{

	// Converts plain text to ERA Editable Text format.

	//

public:

	TTextTranToEra(CPlainText::TTextOrganisation aTextOrganisation, TBool aNoTrim=EFalse);

	// Text organisation is the one to read from.

	void Translate(TDes& aBuf);

private:

	void MapControlCode();

	void Trim();

private:

	enum {EBlobCharacter=0x000000b9};

	TBool iNoTrim;

	};

const TInt KMaxExportBuffer=0x100;

const TInt KLineDelimiterLength=2;  // CR/LF protocol

//

const TText KCharacterCR=0x0d;

const TText KCharacterLF=0x0a;

const TText KCharacterTab=0x09;

const TText KCharacterHyphen=0x2d;

const TText KCharacterSpace=0x20;

class TTextTranFromEra : public TTextTran

	{

	// Converts from ERA Editable Text format to plain text.

	//

public:

	static TTextTranFromEra* NewL(CPlainText::TTextOrganisation aTextOrganisation,RWriteStream& aOutStream,TInt aLineWrap);

	TInt DoTranslateL();

	void NotifyEndOfSourceL();

	void Initialise(const TDesC& aBuf);

private:

	TTextTranFromEra(CPlainText::TTextOrganisation aTextOrganisation,RWriteStream& aOutStream,TInt aLineWrap);

	void ConstructL();

	void ResetExportBuffer();

	void CommitExportBufferToFileL();

	void DoTranslateSourceBufferL();

	void MapEraCodeL();

	void WriteCRLF(TInt aCharacters);

private:

	TBuf<KMaxExportBuffer> iExportBuffer;

	TText* iSBase;

	TInt iSLen;

	TText* iTBase;

	RWriteStream& iOutStream;

	TInt iLineWrap;

	};

#endif