/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


#ifndef _TEXTDAT2_HXX
#define _TEXTDAT2_HXX

#include <svl/svarray.hxx>
#include <tools/list.hxx>
#include <vcl/seleng.hxx>
#include <vcl/virdev.hxx>
#include <vcl/cursor.hxx>

class TextNode;
class TextView;

#define PORTIONKIND_TEXT		0
#define PORTIONKIND_TAB         1

#define DELMODE_SIMPLE			0
#define DELMODE_RESTOFWORD		1
#define DELMODE_RESTOFCONTENT	2

#define DEL_LEFT	1
#define DEL_RIGHT	2
#define TRAVEL_X_DONTKNOW	0xFFFF
#define MAXCHARSINPARA		0x3FFF-CHARPOSGROW

#define LINE_SEP	0x0A


class TETextPortion
{
private:
	sal_uInt16		nLen;
	long 		nWidth;
	sal_uInt8		nKind;
    sal_uInt8        nRightToLeft;

				TETextPortion()				{ nLen = 0; nKind = PORTIONKIND_TEXT; nWidth = -1; nRightToLeft = 0;}

public:
				TETextPortion( sal_uInt16 nL )	{
												nLen = nL;
												nKind = PORTIONKIND_TEXT;
												nWidth= -1;
                                                nRightToLeft = 0;
											}

	sal_uInt16		GetLen() const				{ return nLen; }
	sal_uInt16&		GetLen() 					{ return nLen; }

	long		GetWidth()const				{ return nWidth; }
	long&		GetWidth()					{ return nWidth; }

	sal_uInt8		GetKind() const				{ return nKind; }
	sal_uInt8&		GetKind()					{ return nKind; }

    sal_uInt8		GetRightToLeft() const		{ return nRightToLeft; }
	sal_uInt8&		GetRightToLeft()			{ return nRightToLeft; }
    sal_Bool        IsRightToLeft() const       { return (nRightToLeft&1); }

	sal_Bool		HasValidSize() const		{ return nWidth != (-1); }
};


typedef TETextPortion* TextPortionPtr;
SV_DECL_PTRARR( TextPortionArray, TextPortionPtr, 0, 8 )

class TETextPortionList : public TextPortionArray
{
public:
			TETextPortionList();
			~TETextPortionList();

	void	Reset();
	sal_uInt16	FindPortion( sal_uInt16 nCharPos, sal_uInt16& rPortionStart, sal_Bool bPreferStartingPortion = sal_False );
    sal_uInt16  GetPortionStartIndex( sal_uInt16 nPortion );
	void	DeleteFromPortion( sal_uInt16 nDelFrom );
};

struct TEWritingDirectionInfo
{
    sal_uInt8    nType;
    sal_uInt16  nStartPos;
    sal_uInt16  nEndPos;
    TEWritingDirectionInfo( sal_uInt8 _Type, sal_uInt16 _Start, sal_uInt16 _End )
    {
        nType = _Type;
        nStartPos = _Start;
        nEndPos = _End;
    }
};

SV_DECL_VARARR( TEWritingDirectionInfos, TEWritingDirectionInfo, 0, 4 )

class TextLine
{
private:
	sal_uInt16			mnStart;
	sal_uInt16			mnEnd;
	sal_uInt16			mnStartPortion;
	sal_uInt16 			mnEndPortion;

	short			mnStartX;

	sal_Bool			mbInvalid;	// fuer geschickte Formatierung/Ausgabe

public:
					TextLine() 	{
									mnStart = mnEnd = 0;
									mnStartPortion = mnEndPortion = 0;
									mnStartX = 0;
									mbInvalid = sal_True;
								}

	sal_Bool			IsIn( sal_uInt16 nIndex ) const
						{ return ( (nIndex >= mnStart ) && ( nIndex < mnEnd ) ); }

	sal_Bool			IsIn( sal_uInt16 nIndex, sal_Bool bInclEnd ) const
						{ return ( ( nIndex >= mnStart ) && ( bInclEnd ? ( nIndex <= mnEnd ) : ( nIndex < mnEnd ) ) ); }

	void			SetStart( sal_uInt16 n )			{ mnStart = n; }
	sal_uInt16			GetStart() const				{ return mnStart; }
	sal_uInt16&			GetStart() 						{ return mnStart; }

	void			SetEnd( sal_uInt16 n )				{ mnEnd = n; }
	sal_uInt16			GetEnd() const					{ return mnEnd; }
	sal_uInt16&			GetEnd() 						{ return mnEnd; }

	void			SetStartPortion( sal_uInt16 n )		{ mnStartPortion = n; }
	sal_uInt16			GetStartPortion() const			{ return mnStartPortion; }
	sal_uInt16&			GetStartPortion() 				{ return mnStartPortion; }

	void			SetEndPortion( sal_uInt16 n )		{ mnEndPortion = n; }
	sal_uInt16			GetEndPortion() const			{ return mnEndPortion; }
	sal_uInt16&			GetEndPortion() 				{ return mnEndPortion; }

	sal_uInt16			GetLen() const					{ return mnEnd - mnStart; }

	sal_Bool			IsInvalid()	const				{ return mbInvalid; }
	sal_Bool			IsValid() const					{ return !mbInvalid; }
	void			SetInvalid()					{ mbInvalid = sal_True; }
	void			SetValid()						{ mbInvalid = sal_False; }

	sal_Bool			IsEmpty() const					{ return (mnEnd > mnStart) ? sal_False : sal_True; }

	short			GetStartX() const				{ return mnStartX; }
	void			SetStartX( short n )			{ mnStartX = n; }

	inline sal_Bool operator == ( const TextLine& rLine ) const;
	inline sal_Bool operator != ( const TextLine& rLine ) const;
};

typedef TextLine* TextLinePtr;
 SV_DECL_PTRARR_DEL( TextLines, TextLinePtr, 1, 4 )

inline sal_Bool TextLine::operator == ( const TextLine& rLine ) const
{
	return ( 	( mnStart == rLine.mnStart ) &&
				( mnEnd == rLine.mnEnd ) &&
				( mnStartPortion == rLine.mnStartPortion ) &&
				( mnEndPortion == rLine.mnEndPortion ) );
}

inline sal_Bool TextLine::operator != ( const TextLine& rLine ) const
{
	return !( *this == rLine );
}


class TEParaPortion
{
private:
	TextNode*			    mpNode;

	TextLines			    maLines;
	TETextPortionList       maTextPortions;
    TEWritingDirectionInfos maWritingDirectionInfos;


	sal_uInt16				mnInvalidPosStart;
	short				mnInvalidDiff;

	sal_Bool				mbInvalid;
	sal_Bool				mbSimple;	// nur lineares Tippen


						TEParaPortion( const TEParaPortion& ) {;}

public:
						TEParaPortion( TextNode* pNode );
						~TEParaPortion();


	sal_Bool				IsInvalid()	const			{ return mbInvalid; }
	sal_Bool				IsSimpleInvalid() const		{ return mbSimple; }
	void				SetNotSimpleInvalid() 		{ mbSimple = sal_False; }
	void				SetValid()					{ mbInvalid = sal_False; mbSimple = sal_True;}

	void				MarkInvalid( sal_uInt16 nStart, short nDiff);
	void				MarkSelectionInvalid( sal_uInt16 nStart, sal_uInt16 nEnd );

	sal_uInt16				GetInvalidPosStart() const	{ return mnInvalidPosStart; }
	short				GetInvalidDiff() const 		{ return mnInvalidDiff; }

	TextNode*			GetNode() const				{ return mpNode; }
	TextLines&			GetLines()					{ return maLines; }
	TETextPortionList&	GetTextPortions() 			{ return maTextPortions; }
    TEWritingDirectionInfos& GetWritingDirectionInfos() { return maWritingDirectionInfos; }


	sal_uInt16				GetLineNumber( sal_uInt16 nIndex, sal_Bool bInclEnd );
	void				CorrectValuesBehindLastFormattedLine( sal_uInt16 nLastFormattedLine );
};


class TEParaPortions : public ToolsList<TEParaPortion*>
{
public:
					TEParaPortions();
					~TEParaPortions();
	void			Reset();
};


class TextSelFunctionSet: public FunctionSet
{
private:
	TextView* 		mpView;

public:
					TextSelFunctionSet( TextView* pView );

	virtual void	BeginDrag();

	virtual void 	CreateAnchor();

	virtual sal_Bool 	SetCursorAtPoint( const Point& rPointPixel, sal_Bool bDontSelectAtCursor = sal_False );

	virtual sal_Bool 	IsSelectionAtPoint( const Point& rPointPixel );
	virtual void 	DeselectAll();

	virtual void 	DeselectAtPoint( const Point& );
	virtual void 	DestroyAnchor();
};


class IdleFormatter : public Timer
{
private:
	TextView* 	mpView;
	sal_uInt16		mnRestarts;

public:
				IdleFormatter();
				~IdleFormatter();

	void		DoIdleFormat( TextView* pV, sal_uInt16 nMaxRestarts );
	void		ForceTimeout();
	TextView*	GetView()		{ return mpView; }
};

struct TextDDInfo
{
	Cursor			maCursor;
	TextPaM			maDropPos;

	sal_Bool 			mbStarterOfDD;
	sal_Bool 			mbVisCursor;

	TextDDInfo()
	{
		maCursor.SetStyle( CURSOR_SHADOW );
		mbStarterOfDD = sal_False;
		mbVisCursor = sal_False;
	}
};

#endif // _TEXTDAT2_HXX