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#ifndef _TXTATTR_HXX
#define _TXTATTR_HXX

#include "svtools/svtdllapi.h"
#include <tools/color.hxx>
#include <vcl/vclenum.hxx>
#include <tools/string.hxx>
#include <tools/debug.hxx>

class Font;

#define TEXTATTR_INVALID	0
#define TEXTATTR_FONTCOLOR	1
#define TEXTATTR_HYPERLINK	2
#define TEXTATTR_FONTWEIGHT	3

#define TEXTATTR_USER_START 1000 //start id for user defined text attributes
#define TEXTATTR_PROTECTED  4


class SVT_DLLPUBLIC TextAttrib
{
private:
    sal_uInt16					mnWhich;

protected:
                            TextAttrib( sal_uInt16 nWhich ) { mnWhich = nWhich; }
                            TextAttrib( const TextAttrib& rAttr ) { mnWhich = rAttr.mnWhich; }

public:

    virtual					~TextAttrib();

    sal_uInt16					Which() const 	{ return mnWhich; }

    virtual void 			SetFont( Font& rFont ) const = 0;
    virtual TextAttrib*		Clone() const = 0;
    virtual int				operator==( const TextAttrib& rAttr ) const = 0;
    int						operator!=( const TextAttrib& rAttr ) const
                                { return !(*this == rAttr ); }
};



class SVT_DLLPUBLIC TextAttribFontColor : public TextAttrib
{
private:
    Color	maColor;

public:
                            TextAttribFontColor( const Color& rColor );
                            TextAttribFontColor( const TextAttribFontColor& rAttr );
                            ~TextAttribFontColor();
                            
    const Color&            GetColor() const { return maColor; }
                            
    virtual void 			SetFont( Font& rFont ) const;
    virtual TextAttrib*		Clone() const;
    virtual int				operator==( const TextAttrib& rAttr ) const;

};

class SVT_DLLPUBLIC TextAttribFontWeight : public TextAttrib
{
private:
    FontWeight	meWeight;

public:
                            TextAttribFontWeight( FontWeight eWeight );
                            TextAttribFontWeight( const TextAttribFontWeight& rAttr );
                            ~TextAttribFontWeight();

    virtual void 			SetFont( Font& rFont ) const;
    virtual TextAttrib*		Clone() const;
    virtual int				operator==( const TextAttrib& rAttr ) const;

    inline FontWeight getFontWeight() const { return meWeight; }
};


class TextAttribHyperLink : public TextAttrib
{
private:
    XubString	maURL;
    XubString	maDescription;
    Color		maColor;

public:
                            TextAttribHyperLink( const XubString& rURL );
                            TextAttribHyperLink( const XubString& rURL, const XubString& rDescription );
                            TextAttribHyperLink( const TextAttribHyperLink& rAttr );
                            ~TextAttribHyperLink();

    void					SetURL( const XubString& rURL )				{ maURL = rURL; }
    const XubString&			GetURL() const 								{ return maURL; }

    void					SetDescription( const XubString& rDescr )	{ maDescription = rDescr; }
    const XubString&			GetDescription() const						{ return maDescription; }

    void					SetColor( const Color& rColor ) 			{ maColor = rColor; }
    const Color&			GetColor() const 							{ return maColor; }

    virtual void 			SetFont( Font& rFont ) const;
    virtual TextAttrib*		Clone() const;
    virtual int				operator==( const TextAttrib& rAttr ) const;
};

class SVT_DLLPUBLIC TextAttribProtect : public TextAttrib
{
public:
                            TextAttribProtect();
                            TextAttribProtect( const TextAttribProtect& rAttr );
                            ~TextAttribProtect();
                            
    virtual void            SetFont( Font& rFont ) const;
    virtual TextAttrib*     Clone() const;
    virtual int             operator==( const TextAttrib& rAttr ) const;

};


class TextCharAttrib
{
private:
    TextAttrib*		mpAttr;
    sal_uInt16 			mnStart;
    sal_uInt16 			mnEnd;

protected:

public:

                    TextCharAttrib( const TextAttrib& rAttr, sal_uInt16 nStart, sal_uInt16 nEnd );
                    TextCharAttrib( const TextCharAttrib& rTextCharAttrib );
                    ~TextCharAttrib();

    const TextAttrib&	GetAttr() const 		{ return *mpAttr; }

    sal_uInt16			Which() const 				{ return mpAttr->Which(); }

    sal_uInt16			GetStart() const			{ return mnStart; }
    sal_uInt16&			GetStart()					{ return mnStart; }

    sal_uInt16			GetEnd() const				{ return mnEnd; }
    sal_uInt16&			GetEnd()					{ return mnEnd; }

    inline sal_uInt16	GetLen() const;

    inline void		MoveForward( sal_uInt16 nDiff );
    inline void		MoveBackward( sal_uInt16 nDiff );

    inline void		Expand( sal_uInt16 nDiff );
    inline void		Collaps( sal_uInt16 nDiff );

    inline sal_Bool		IsIn( sal_uInt16 nIndex );
    inline sal_Bool		IsInside( sal_uInt16 nIndex );
    inline sal_Bool		IsEmpty();

};

inline sal_uInt16 TextCharAttrib::GetLen() const
{
    DBG_ASSERT( mnEnd >= mnStart, "TextCharAttrib: nEnd < nStart!" );
    return mnEnd-mnStart;
}

inline void TextCharAttrib::MoveForward( sal_uInt16 nDiff )
{
    DBG_ASSERT( ((long)mnEnd + nDiff) <= 0xFFFF, "TextCharAttrib: MoveForward?!" );
    mnStart = mnStart + nDiff;
    mnEnd = mnEnd + nDiff;
}

inline void TextCharAttrib::MoveBackward( sal_uInt16 nDiff )
{
    DBG_ASSERT( ((long)mnStart - nDiff) >= 0, "TextCharAttrib: MoveBackward?!" );
    mnStart = mnStart - nDiff;
    mnEnd = mnEnd - nDiff;
}

inline void	TextCharAttrib::Expand( sal_uInt16 nDiff )
{
    DBG_ASSERT( ( ((long)mnEnd + nDiff) <= (long)0xFFFF ), "TextCharAttrib: Expand?!" );
    mnEnd = mnEnd + nDiff;
}

inline void	TextCharAttrib::Collaps( sal_uInt16 nDiff )
{
    DBG_ASSERT( (long)mnEnd - nDiff >= (long)mnStart, "TextCharAttrib: Collaps?!" );
    mnEnd = mnEnd - nDiff;
}

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

inline sal_Bool TextCharAttrib::IsInside( sal_uInt16 nIndex )
{
    return ( ( mnStart < nIndex ) && ( mnEnd > nIndex ) );
}

inline sal_Bool TextCharAttrib::IsEmpty()
{
    return mnStart == mnEnd;
}

#endif // _TXTATTR_HXX

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