253 lines
8.9 KiB
C++
253 lines
8.9 KiB
C++
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#ifndef _FONTFACE_
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#define _FONTFACE_
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class GpFontFile;
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class ShapingCache; // implemented in ..\text\uniscribe\shaping
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struct ShapingCacheFactory
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{
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GpStatus Create(const GpFontFace *face);
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void Destroy();
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ShapingCache *Cache;
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};
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///// GpFontFace
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//
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//
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class GpFontFace
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{
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public:
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FontStyle GetFaceStyle(void) const
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{
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switch (pifi->fsSelection & (FM_SEL_BOLD | FM_SEL_ITALIC))
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{
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case FM_SEL_BOLD: return FontStyleBold;
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case FM_SEL_ITALIC: return FontStyleItalic;
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case FM_SEL_BOLD | FM_SEL_ITALIC: return FontStyleBoldItalic;
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default: return FontStyleRegular;
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}
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}
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BOOL SimBold() const
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{
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BOOL ret = FALSE;
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if (pifi->dpFontSim)
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{
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FONTSIM *pfs = (FONTSIM*) ((BYTE*)pifi + pifi->dpFontSim);
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ret = (pifi->fsSelection & FM_SEL_ITALIC) ?
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(BOOL) pfs->dpBoldItalic : (BOOL) pfs->dpBold;
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}
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return (ret);
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}
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BOOL SimItalic() const
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{
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BOOL ret = FALSE;
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if (pifi->dpFontSim)
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{
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FONTSIM *pfs = (FONTSIM*) ((BYTE*)pifi + pifi->dpFontSim);
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ret = (pifi->fsSelection & FM_SEL_BOLD) ?
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(BOOL) pfs->dpBoldItalic : (BOOL) pfs->dpItalic;
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}
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return (ret);
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}
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void IncGpFontFamilyRef(void) { cGpFontFamilyRef++; }
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void DecGpFontFamilyRef(void) { cGpFontFamilyRef--; }
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public:
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// The following internal class variables are public because they
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// are initialised and manipulated by classless code ported from GDI.
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// Location of font.
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GpFontFile *pff; // pointer to physical font file object
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ULONG iFont; // index of the font for IFI or device, 1 based
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FLONG flPFE;
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// Font data.
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GP_IFIMETRICS *pifi; // pointer to ifimetrics
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ULONG idifi; // id returned by driver for IFIMETRICS
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// information needed to support ETO_GLYPHINDEX mode of ExtTextOut.
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ULONG NumGlyphs;
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// Ref count for GpFontFamily objects that point to this GpFontFace
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ULONG cGpFontFamilyRef;
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mutable BYTE lfCharset;
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static int CALLBACK EnumFontFamExProcA(
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const ENUMLOGFONTEXA *lpelfe, // logical-font data
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const NEWTEXTMETRICEXA *lpntme, // physical-font data
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int FontType, // type of font
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LPARAM lParam // application-defined data
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);
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static int CALLBACK EnumFontFamExProcW(
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const ENUMLOGFONTEXW *lpelfe, // logical-font data
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const NEWTEXTMETRICEXW *lpntme, // physical-font data
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int FontType, // type of font
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LPARAM lParam // application-defined data
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);
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// Text support
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UINT16 GetDesignEmHeight() const {return pifi->fwdUnitsPerEm;}
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UINT16 GetDesignCellAscent() const {return pifi->fwdWinAscender;}
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UINT16 GetDesignCellDescent() const {return pifi->fwdWinDescender;}
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UINT16 GetDesignLineSpacing() const {return max(pifi->fwdMacAscender-pifi->fwdMacDescender+pifi->fwdMacLineGap, pifi->fwdWinAscender+pifi->fwdWinDescender);}
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UINT16 GetDesignUnderscoreSize() const {return pifi->fwdUnderscoreSize;}
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INT16 GetDesignUnderscorePosition() const {return pifi->fwdUnderscorePosition;}
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UINT16 GetDesignStrikeoutSize() const {return pifi->fwdStrikeoutSize;}
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INT16 GetDesignStrikeoutPosition() const {return pifi->fwdStrikeoutPosition;}
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GpStatus GetFontData(UINT32 tag,
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INT* size,
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BYTE** pjTable) const;
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void ReleaseFontData() const;
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BYTE GetCharset(HDC hdc) const;
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const IntMap<UINT16> &GetCmap() const {return *Cmap;}
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const IntMap<UINT16> &GetDesignAdvance() const {return *DesignAdvance;}
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const IntMap<UINT16> *GetDesignVerticalAdvance() const {return DesignVerticalAdvance;}
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BOOL RequiresFullTextImager() const {return RequiresFullText;}
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UINT16 GetMissingGlyph() const {return MissingGlyph;}
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UINT16 GetBlankGlyph() const {return BlankGlyph;}
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BYTE *GetGSUB() const {return Gsub;}
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BYTE *GetGPOS() const {return Gpos;}
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BYTE *GetGDEF() const {return Gdef;}
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BYTE *GetMort() const {return Mort;}
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UINT16 GetVerticalSubstitutionCount() const {return VerticalSubstitutionCount;}
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const UINT16 *GetVerticalSubstitutionOriginals() const {return VerticalSubstitutionOriginals;}
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const UINT16 *GetVerticalSubstitutionSubstitutions() const {return VerticalSubstitutionSubstitutions;}
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void GetGlyphDesignAdvances(
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IN const UINT16 *glyphs, //
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IN INT glyphCount, //
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IN INT style, // Causes adjustment for algorithmic style emulation
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IN BOOL vertical, // Use vtmx, not htmx
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IN REAL tracking, // Expansion factor
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OUT UINT16 *advances //
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) const;
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void GetGlyphDesignAdvancesIdeal(
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IN const UINT16 *glyphs, //
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IN INT glyphCount, //
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IN INT style, // Causes adjustment for algorithmic style emulation
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IN BOOL vertical, // Use vtmx, not htmx
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IN REAL designToIdeal, // Scale factor for each advance width
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IN REAL tracking, // Expansion factor
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OUT INT *advances //
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) const;
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inline ShapingCache *GetShapingCache() const
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{
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return Shaping.Cache;
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}
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void FreeImagerTables();
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BOOL IsAliasName()
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{
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BOOL bOk = FALSE;
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if (pifi->flInfo & FM_INFO_FAMILY_EQUIV)
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{
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bOk = TRUE;
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}
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return bOk;
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}
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WCHAR * GetAliasName()
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{
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size_t length;
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length = UnicodeStringLength((WCHAR *)(((BYTE*) pifi) + pifi->dpwszFamilyName)) + 1;
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if (!(pifi->flInfo & FM_INFO_FAMILY_EQUIV))
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{
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return (WCHAR *) NULL;
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}
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return((WCHAR *)(((BYTE*) pifi) + pifi->dpwszFamilyName) + length);
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}
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BOOL IsPrivate() const { return bPrivateFace;}
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BOOL IsSymbol() const { return bSymbol;}
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void SetPrivate(BOOL bPrivate) { bPrivateFace = bPrivate;}
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void SetSymbol(BOOL symbol) { bSymbol = symbol;}
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BOOL InitializeImagerTables();
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void SetSupportedCodePages(__int64 codePages)
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{
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SupportedCodePages = ((codePages & 0xFF00000000000000) >> 24);
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SupportedCodePages |= ((codePages & 0x00FF000000000000) >> 8 );
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SupportedCodePages |= ((codePages & 0x0000FF0000000000) << 8 );
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SupportedCodePages |= ((codePages & 0x000000FF00000000) << 24);
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SupportedCodePages |= ((codePages & 0x00000000FF000000) >> 24);
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SupportedCodePages |= ((codePages & 0x0000000000FF0000) >> 8 );
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SupportedCodePages |= ((codePages & 0x000000000000FF00) << 8 );
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SupportedCodePages |= ((codePages & 0x00000000000000FF) << 24);
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}
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BOOL IsCodePageSupported(UINT codePage);
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private:
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mutable IntMap<UINT16> *Cmap;
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mutable IntMap<UINT16> *DesignAdvance;
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mutable IntMap<UINT16> *DesignVerticalAdvance;
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mutable IntMap<UINT16> *DesignTopSidebearing;
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mutable ShapingCacheFactory Shaping;
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mutable BOOL RequiresFullText;
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mutable UINT16 MissingGlyph;
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mutable UINT16 BlankGlyph;
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BOOL bPrivateFace;
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mutable BOOL bSymbol;
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mutable __int64 SupportedCodePages;
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mutable BYTE *Gsub; // OTL glyph substitution table
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mutable BYTE *Gpos; // OTL glyph positioning table
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mutable BYTE *Gdef; // OTL glyph definition table
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mutable BYTE *Mort; // legacy vertical substitution table
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mutable UINT16 VerticalSubstitutionCount; // Number of substitutable glyphs
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mutable const UINT16 *VerticalSubstitutionOriginals; // Pointer into cached GSUB
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mutable const UINT16 *VerticalSubstitutionSubstitutions; // Pointer into cached GSUB
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};
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#endif // FONTFACE
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