/*

 * 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: 

 *

 */

 #ifndef __T_RTPAR_H__

 #define	__T_RTPAR_H__

 #include <E32TWIN.H>

 #include <TXTRICH.H>

 // classes defined in this header

 class CRichTextReader;

 class CPMLWriter;

 //

 enum TTagType {		   // Possible types of tag

 	EGlobal, 

 	EParagraph, 

 	ECharacter , 

 	EControl

 	}; 

 enum TTagStatus {	 

 	ETagStart,		  // "<"

 	ETagEnd			  // ">"

 	};

 class CRichTextReader : public CBase

 	{

 public:

 	static CRichTextReader* NewL();

 	void Destruct();

 	// these functions convert a supplied RichText doc into PML 

 	// which is contained in the returned buffer.

 	CBufSeg* ConvertRichText(CRichText* aRichTextDoc, RConsole aConsole);

 	CBufSeg* ConvertRichText(CRichText* aRichTextDoc);

 protected:

 	CRichTextReader();

 	void ConstructL();

 private:

 	void SenseGlobalFormat();

 	TInt TranslatePhrase(TInt aPos);	

 	void CompareParaFormats();

 	void CompareCharFormats();

 	void CompareParaToFactory(CParaFormat* aSensed);  

 	void CompareCharToFactory(TCharFormat aSensed);

 	void CheckTabList(CParaFormat* aFormatOne, CParaFormat* aFormatTwo);

 	TParaBorder* CopyBorderL(const TParaBorder* aFrom,TParaBorder* aTo);

 	TBullet* CopyBulletL(const TBullet* aFrom,TBullet* aTo);

 private:

 	CRichText* iRichTextDoc;

 	CParaFormat* iThisParaFormat;

 	CParaFormat* iPrevParaFormat;

 	TCharFormat iThisCharFormat;

 	TCharFormat iPrevCharFormat;

 	TParaBorder* iBorder;

 	RConsole iConsole;

 	TBool iConsoleExists;				

 	CPMLWriter* iPMLWriter;

 	TInt iParaStart;				// Start pos of current paragraph

 	TInt iDocLength;				// length in chars of rich text doc

 	};

 class CPMLWriter : public CBase

 	{

 public:

 	static CPMLWriter* NewL();

 	void Destruct();

 	void Insert(const TDesC& aBuf);	// inserts a string into PML doc

 	void Delete(TUint aNumberOfCharsToDelete);	// deletes chars prior to current insert pos

 	void Output(RConsole aConsole); // output PML doc to screen

 	inline CBufSeg* ReturnPmlDoc() {return iTextBuf;}

 	inline TUint WritePos() {return iInsertPos;}

 	void SetTag(TTagType, TTagStatus);	// Prints tag delimiters & tag type

 	void SetTab(TTabStop aTabStop);

 	void SetFormat(TTextFormatAttribute aAttribute, TInt aValue);

 	void SetFormat(TTextFormatAttribute aAttribute, TParaBorder* aParaBorder);

 	void SetFormat(TTextFormatAttribute aAttribute, const TTypeface &aTypeface);

 	void SetFormat(TTextFormatAttribute aAttribute, TBullet* aBullet);

 	void SetFormat(TTextFormatAttribute aAttribute, TTabStop aTabStop);

 protected:

 	CPMLWriter();

 	void ConstructL();

 private:

 	void ProcessAlignment(TInt aValue);

 	void ProcessLineSpacingControl(TInt aValue);

 	void ProcessFontPrintPos(TInt aValue);

 	void ProcessBooleanAtt(TTextFormatAttribute aAttribute, TInt aValue);

 	void ProcessBorder(TTextFormatAttribute aAttribute, TInt aValue);

 	void SquashBuf(const TDesC& aBuffer, TDes8& aTarget); // squashes 16 bit buffers to 8 bit (for unicode)

 	void ExpandBuf(const TDes8& aBuffer, TDes& aTarget);

 private:

 	CBufSeg* iTextBuf;					// Buffer for text file to be read into

 	TUint iInsertPos;

 	};

 #endif