| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef CORE_INCLUDE_FXGE_FX_FONT_H_ |
| #define CORE_INCLUDE_FXGE_FX_FONT_H_ |
| |
| #include <map> |
| #include <memory> |
| |
| #include "core/include/fxcrt/fx_system.h" |
| #include "fx_dib.h" |
| |
| typedef struct FT_FaceRec_* FXFT_Face; |
| typedef void* FXFT_Library; |
| |
| class CFX_FaceCache; |
| class CFX_FontFaceInfo; |
| class CFX_FontMapper; |
| class CFX_PathData; |
| class CFX_SizeGlyphCache; |
| class CFX_SubstFont; |
| class CTTFontDesc; |
| class IFX_FontEncoding; |
| class IFX_SystemFontInfo; |
| |
| #define FXFONT_FIXED_PITCH 0x01 |
| #define FXFONT_SERIF 0x02 |
| #define FXFONT_SYMBOLIC 0x04 |
| #define FXFONT_SCRIPT 0x08 |
| #define FXFONT_ITALIC 0x40 |
| #define FXFONT_BOLD 0x40000 |
| #define FXFONT_USEEXTERNATTR 0x80000 |
| #define FXFONT_CIDFONT 0x100000 |
| #define FXFONT_ANSI_CHARSET 0 |
| #define FXFONT_DEFAULT_CHARSET 1 |
| #define FXFONT_SYMBOL_CHARSET 2 |
| #define FXFONT_SHIFTJIS_CHARSET 128 |
| #define FXFONT_HANGEUL_CHARSET 129 |
| #define FXFONT_GB2312_CHARSET 134 |
| #define FXFONT_CHINESEBIG5_CHARSET 136 |
| #define FXFONT_THAI_CHARSET 222 |
| #define FXFONT_EASTEUROPE_CHARSET 238 |
| #define FXFONT_RUSSIAN_CHARSET 204 |
| #define FXFONT_GREEK_CHARSET 161 |
| #define FXFONT_TURKISH_CHARSET 162 |
| #define FXFONT_HEBREW_CHARSET 177 |
| #define FXFONT_ARABIC_CHARSET 178 |
| #define FXFONT_BALTIC_CHARSET 186 |
| #define FXFONT_FF_FIXEDPITCH 1 |
| #define FXFONT_FF_ROMAN (1 << 4) |
| #define FXFONT_FF_SCRIPT (4 << 4) |
| #define FXFONT_FW_NORMAL 400 |
| #define FXFONT_FW_BOLD 700 |
| |
| class CFX_Font { |
| public: |
| CFX_Font(); |
| ~CFX_Font(); |
| |
| void LoadSubst(const CFX_ByteString& face_name, |
| FX_BOOL bTrueType, |
| FX_DWORD flags, |
| int weight, |
| int italic_angle, |
| int CharsetCP, |
| FX_BOOL bVertical = FALSE); |
| FX_BOOL LoadEmbedded(const uint8_t* data, FX_DWORD size); |
| FXFT_Face GetFace() const { return m_Face; } |
| const CFX_SubstFont* GetSubstFont() const { return m_pSubstFont; } |
| CFX_PathData* LoadGlyphPath(FX_DWORD glyph_index, int dest_width = 0); |
| int GetGlyphWidth(FX_DWORD glyph_index); |
| int GetAscent() const; |
| int GetDescent() const; |
| FX_BOOL GetGlyphBBox(FX_DWORD glyph_index, FX_RECT& bbox); |
| FX_BOOL IsItalic() const; |
| FX_BOOL IsBold() const; |
| FX_BOOL IsFixedWidth() const; |
| FX_BOOL IsVertical() const { return m_bVertical; } |
| CFX_WideString GetPsName() const; |
| CFX_ByteString GetFamilyName() const; |
| CFX_ByteString GetFaceName() const; |
| FX_BOOL IsTTFont() const; |
| FX_BOOL GetBBox(FX_RECT& bbox); |
| int GetHeight() const; |
| int GetULPos() const; |
| int GetULthickness() const; |
| int GetMaxAdvanceWidth() const; |
| FX_BOOL IsEmbedded() const { return m_bEmbedded; } |
| uint8_t* GetSubData() const { return m_pGsubData; } |
| void SetSubData(uint8_t* data) { m_pGsubData = data; } |
| void* GetPlatformFont() const { return m_pPlatformFont; } |
| void SetPlatformFont(void* font) { m_pPlatformFont = font; } |
| uint8_t* GetFontData() const { return m_pFontData; } |
| FX_DWORD GetSize() const { return m_dwSize; } |
| void AdjustMMParams(int glyph_index, int width, int weight); |
| |
| private: |
| void ReleasePlatformResource(); |
| void DeleteFace(); |
| |
| FXFT_Face m_Face; |
| CFX_SubstFont* m_pSubstFont; |
| uint8_t* m_pFontDataAllocation; |
| uint8_t* m_pFontData; |
| uint8_t* m_pGsubData; |
| FX_DWORD m_dwSize; |
| CFX_BinaryBuf m_OtfFontData; |
| void* m_hHandle; |
| void* m_pPlatformFont; |
| void* m_pPlatformFontCollection; |
| void* m_pDwFont; |
| FX_BOOL m_bDwLoaded; |
| FX_BOOL m_bEmbedded; |
| FX_BOOL m_bVertical; |
| }; |
| |
| #define ENCODING_INTERNAL 0 |
| #define ENCODING_UNICODE 1 |
| |
| class CFX_UnicodeEncoding { |
| public: |
| explicit CFX_UnicodeEncoding(CFX_Font* pFont); |
| virtual ~CFX_UnicodeEncoding(); |
| |
| virtual FX_DWORD GlyphFromCharCode(FX_DWORD charcode); |
| |
| protected: |
| // Unowned, not nullptr. |
| CFX_Font* m_pFont; |
| }; |
| |
| #define FXFONT_SUBST_MM 0x01 |
| #define FXFONT_SUBST_GLYPHPATH 0x04 |
| #define FXFONT_SUBST_CLEARTYPE 0x08 |
| #define FXFONT_SUBST_TRANSFORM 0x10 |
| #define FXFONT_SUBST_NONSYMBOL 0x20 |
| #define FXFONT_SUBST_EXACT 0x40 |
| #define FXFONT_SUBST_STANDARD 0x80 |
| |
| class CFX_SubstFont { |
| public: |
| CFX_SubstFont(); |
| |
| void* m_ExtHandle; |
| |
| CFX_ByteString m_Family; |
| |
| int m_Charset; |
| |
| FX_DWORD m_SubstFlags; |
| |
| int m_Weight; |
| |
| int m_ItalicAngle; |
| |
| FX_BOOL m_bSubstOfCJK; |
| |
| int m_WeightCJK; |
| |
| FX_BOOL m_bItlicCJK; |
| }; |
| #define FX_FONT_FLAG_SERIF 0x01 |
| #define FX_FONT_FLAG_FIXEDPITCH 0x02 |
| #define FX_FONT_FLAG_ITALIC 0x04 |
| #define FX_FONT_FLAG_BOLD 0x08 |
| #define FX_FONT_FLAG_SYMBOLIC_SYMBOL 0x10 |
| #define FX_FONT_FLAG_SYMBOLIC_DINGBATS 0x20 |
| #define FX_FONT_FLAG_MULTIPLEMASTER 0x40 |
| |
| class CFX_FontMgr { |
| public: |
| CFX_FontMgr(); |
| ~CFX_FontMgr(); |
| |
| void InitFTLibrary(); |
| |
| FXFT_Face GetCachedFace(const CFX_ByteString& face_name, |
| int weight, |
| FX_BOOL bItalic, |
| uint8_t*& pFontData); |
| FXFT_Face AddCachedFace(const CFX_ByteString& face_name, |
| int weight, |
| FX_BOOL bItalic, |
| uint8_t* pData, |
| FX_DWORD size, |
| int face_index); |
| FXFT_Face GetCachedTTCFace(int ttc_size, |
| FX_DWORD checksum, |
| int font_offset, |
| uint8_t*& pFontData); |
| FXFT_Face AddCachedTTCFace(int ttc_size, |
| FX_DWORD checksum, |
| uint8_t* pData, |
| FX_DWORD size, |
| int font_offset); |
| FXFT_Face GetFileFace(const FX_CHAR* filename, int face_index); |
| FXFT_Face GetFixedFace(const uint8_t* pData, FX_DWORD size, int face_index); |
| void ReleaseFace(FXFT_Face face); |
| void SetSystemFontInfo(IFX_SystemFontInfo* pFontInfo); |
| FXFT_Face FindSubstFont(const CFX_ByteString& face_name, |
| FX_BOOL bTrueType, |
| FX_DWORD flags, |
| int weight, |
| int italic_angle, |
| int CharsetCP, |
| CFX_SubstFont* pSubstFont); |
| bool GetBuiltinFont(size_t index, const uint8_t** pFontData, FX_DWORD* size); |
| CFX_FontMapper* GetBuiltinMapper() const { return m_pBuiltinMapper.get(); } |
| FXFT_Library GetFTLibrary() const { return m_FTLibrary; } |
| |
| private: |
| std::unique_ptr<CFX_FontMapper> m_pBuiltinMapper; |
| std::map<CFX_ByteString, CTTFontDesc*> m_FaceMap; |
| FXFT_Library m_FTLibrary; |
| }; |
| |
| class IFX_FontEnumerator { |
| public: |
| virtual void HitFont() = 0; |
| |
| virtual void Finish() = 0; |
| |
| protected: |
| virtual ~IFX_FontEnumerator() {} |
| }; |
| |
| class IFX_AdditionalFontEnum { |
| public: |
| virtual int CountFiles() = 0; |
| virtual IFX_FileStream* GetFontFile(int index) = 0; |
| |
| protected: |
| virtual ~IFX_AdditionalFontEnum() {} |
| }; |
| |
| class CFX_FontMapper { |
| public: |
| explicit CFX_FontMapper(CFX_FontMgr* mgr); |
| ~CFX_FontMapper(); |
| |
| void SetSystemFontInfo(IFX_SystemFontInfo* pFontInfo); |
| IFX_SystemFontInfo* GetSystemFontInfo() { return m_pFontInfo; } |
| void AddInstalledFont(const CFX_ByteString& name, int charset); |
| void LoadInstalledFonts(); |
| CFX_ByteStringArray m_InstalledTTFonts; |
| void SetFontEnumerator(IFX_FontEnumerator* pFontEnumerator) { |
| m_pFontEnumerator = pFontEnumerator; |
| } |
| IFX_FontEnumerator* GetFontEnumerator() const { return m_pFontEnumerator; } |
| FXFT_Face FindSubstFont(const CFX_ByteString& face_name, |
| FX_BOOL bTrueType, |
| FX_DWORD flags, |
| int weight, |
| int italic_angle, |
| int CharsetCP, |
| CFX_SubstFont* pSubstFont); |
| FX_BOOL IsBuiltinFace(const FXFT_Face face) const; |
| |
| private: |
| static const size_t MM_FACE_COUNT = 2; |
| static const size_t FOXIT_FACE_COUNT = 14; |
| |
| CFX_ByteString GetPSNameFromTT(void* hFont); |
| CFX_ByteString MatchInstalledFonts(const CFX_ByteString& norm_name); |
| FXFT_Face UseInternalSubst(CFX_SubstFont* pSubstFont, |
| int iBaseFont, |
| int italic_angle, |
| int weight, |
| int picthfamily); |
| |
| FX_BOOL m_bListLoaded; |
| FXFT_Face m_MMFaces[MM_FACE_COUNT]; |
| CFX_ByteString m_LastFamily; |
| CFX_DWordArray m_CharsetArray; |
| CFX_ByteStringArray m_FaceArray; |
| IFX_SystemFontInfo* m_pFontInfo; |
| FXFT_Face m_FoxitFaces[FOXIT_FACE_COUNT]; |
| IFX_FontEnumerator* m_pFontEnumerator; |
| CFX_FontMgr* const m_pFontMgr; |
| }; |
| |
| class IFX_SystemFontInfo { |
| public: |
| static IFX_SystemFontInfo* CreateDefault(const char** pUserPaths); |
| virtual void Release() = 0; |
| |
| virtual FX_BOOL EnumFontList(CFX_FontMapper* pMapper) = 0; |
| virtual void* MapFont(int weight, |
| FX_BOOL bItalic, |
| int charset, |
| int pitch_family, |
| const FX_CHAR* face, |
| int& iExact) = 0; |
| virtual void* GetFont(const FX_CHAR* face) = 0; |
| virtual FX_DWORD GetFontData(void* hFont, |
| FX_DWORD table, |
| uint8_t* buffer, |
| FX_DWORD size) = 0; |
| virtual FX_BOOL GetFaceName(void* hFont, CFX_ByteString& name) = 0; |
| virtual FX_BOOL GetFontCharset(void* hFont, int& charset) = 0; |
| virtual int GetFaceIndex(void* hFont) { return 0; } |
| virtual void DeleteFont(void* hFont) = 0; |
| virtual void* RetainFont(void* hFont) { return NULL; } |
| |
| protected: |
| virtual ~IFX_SystemFontInfo() {} |
| }; |
| |
| class CFX_FolderFontInfo : public IFX_SystemFontInfo { |
| public: |
| CFX_FolderFontInfo(); |
| ~CFX_FolderFontInfo() override; |
| void AddPath(const CFX_ByteStringC& path); |
| |
| // IFX_SytemFontInfo: |
| void Release() override; |
| FX_BOOL EnumFontList(CFX_FontMapper* pMapper) override; |
| void* MapFont(int weight, |
| FX_BOOL bItalic, |
| int charset, |
| int pitch_family, |
| const FX_CHAR* face, |
| int& bExact) override; |
| void* GetFont(const FX_CHAR* face) override; |
| FX_DWORD GetFontData(void* hFont, |
| FX_DWORD table, |
| uint8_t* buffer, |
| FX_DWORD size) override; |
| void DeleteFont(void* hFont) override; |
| FX_BOOL GetFaceName(void* hFont, CFX_ByteString& name) override; |
| FX_BOOL GetFontCharset(void* hFont, int& charset) override; |
| |
| protected: |
| std::map<CFX_ByteString, CFX_FontFaceInfo*> m_FontList; |
| CFX_ByteStringArray m_PathList; |
| CFX_FontMapper* m_pMapper; |
| void ScanPath(CFX_ByteString& path); |
| void ScanFile(CFX_ByteString& path); |
| void ReportFace(CFX_ByteString& path, |
| FXSYS_FILE* pFile, |
| FX_DWORD filesize, |
| FX_DWORD offset); |
| void* GetSubstFont(const CFX_ByteString& face); |
| void* FindFont(int weight, |
| FX_BOOL bItalic, |
| int charset, |
| int pitch_family, |
| const FX_CHAR* family, |
| FX_BOOL bMatchName); |
| }; |
| class CFX_CountedFaceCache { |
| public: |
| CFX_FaceCache* m_Obj; |
| FX_DWORD m_nCount; |
| }; |
| |
| class CFX_FontCache { |
| public: |
| ~CFX_FontCache(); |
| CFX_FaceCache* GetCachedFace(CFX_Font* pFont); |
| void ReleaseCachedFace(CFX_Font* pFont); |
| void FreeCache(FX_BOOL bRelease = FALSE); |
| |
| private: |
| using CFX_FTCacheMap = std::map<FXFT_Face, CFX_CountedFaceCache*>; |
| CFX_FTCacheMap m_FTFaceMap; |
| CFX_FTCacheMap m_ExtFaceMap; |
| }; |
| class CFX_AutoFontCache { |
| public: |
| CFX_AutoFontCache(CFX_FontCache* pFontCache, CFX_Font* pFont) |
| : m_pFontCache(pFontCache), m_pFont(pFont) {} |
| ~CFX_AutoFontCache() { m_pFontCache->ReleaseCachedFace(m_pFont); } |
| CFX_FontCache* m_pFontCache; |
| CFX_Font* m_pFont; |
| }; |
| #define FX_FONTCACHE_DEFINE(pFontCache, pFont) \ |
| CFX_AutoFontCache autoFontCache((pFontCache), (pFont)) |
| class CFX_GlyphBitmap { |
| public: |
| int m_Top; |
| int m_Left; |
| CFX_DIBitmap m_Bitmap; |
| }; |
| class CFX_FaceCache { |
| public: |
| explicit CFX_FaceCache(FXFT_Face face); |
| ~CFX_FaceCache(); |
| const CFX_GlyphBitmap* LoadGlyphBitmap(CFX_Font* pFont, |
| FX_DWORD glyph_index, |
| FX_BOOL bFontStyle, |
| const CFX_Matrix* pMatrix, |
| int dest_width, |
| int anti_alias, |
| int& text_flags); |
| const CFX_PathData* LoadGlyphPath(CFX_Font* pFont, |
| FX_DWORD glyph_index, |
| int dest_width); |
| |
| private: |
| CFX_GlyphBitmap* RenderGlyph(CFX_Font* pFont, |
| FX_DWORD glyph_index, |
| FX_BOOL bFontStyle, |
| const CFX_Matrix* pMatrix, |
| int dest_width, |
| int anti_alias); |
| CFX_GlyphBitmap* RenderGlyph_Nativetext(CFX_Font* pFont, |
| FX_DWORD glyph_index, |
| const CFX_Matrix* pMatrix, |
| int dest_width, |
| int anti_alias); |
| CFX_GlyphBitmap* LookUpGlyphBitmap(CFX_Font* pFont, |
| const CFX_Matrix* pMatrix, |
| CFX_ByteStringC& FaceGlyphsKey, |
| FX_DWORD glyph_index, |
| FX_BOOL bFontStyle, |
| int dest_width, |
| int anti_alias); |
| void InitPlatform(); |
| void DestroyPlatform(); |
| |
| FXFT_Face const m_Face; |
| std::map<CFX_ByteString, CFX_SizeGlyphCache*> m_SizeMap; |
| std::map<FX_DWORD, CFX_PathData*> m_PathMap; |
| CFX_DIBitmap* m_pBitmap; |
| }; |
| |
| struct FXTEXT_GLYPHPOS { |
| const CFX_GlyphBitmap* m_pGlyph; |
| int m_OriginX; |
| int m_OriginY; |
| FX_FLOAT m_fOriginX; |
| FX_FLOAT m_fOriginY; |
| }; |
| |
| FX_RECT FXGE_GetGlyphsBBox(FXTEXT_GLYPHPOS* pGlyphAndPos, |
| int nChars, |
| int anti_alias, |
| FX_FLOAT retinaScaleX = 1.0f, |
| FX_FLOAT retinaScaleY = 1.0f); |
| |
| class IFX_GSUBTable { |
| public: |
| static IFX_GSUBTable* Create(CFX_Font* pFont); |
| virtual FX_BOOL GetVerticalGlyph(FX_DWORD glyphnum, FX_DWORD* vglyphnum) = 0; |
| |
| protected: |
| virtual ~IFX_GSUBTable() {} |
| }; |
| |
| CFX_ByteString GetNameFromTT(const uint8_t* name_table, FX_DWORD name); |
| |
| int PDF_GetStandardFontName(CFX_ByteString* name); |
| |
| #endif // CORE_INCLUDE_FXGE_FX_FONT_H_ |