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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 | |
| 7 #ifndef CORE_FPDFAPI_FPDF_FONT_FONT_INT_H_ | |
| 8 #define CORE_FPDFAPI_FPDF_FONT_FONT_INT_H_ | |
| 9 | |
| 10 #include <map> | |
| 11 #include <memory> | |
| 12 | |
| 13 #include "core/fpdfapi/fpdf_font/cpdf_cidfont.h" | |
| 14 #include "core/fxcrt/fx_basic.h" | |
| 15 | |
| 16 class CPDF_CID2UnicodeMap; | |
| 17 class CPDF_CMap; | |
| 18 class CPDF_Font; | |
| 19 class CPDF_Stream; | |
| 20 | |
| 21 using FXFT_Library = void*; | |
| 22 | |
| 23 int TT2PDF(int m, FXFT_Face face); | |
| 24 bool FT_UseTTCharmap(FXFT_Face face, int platform_id, int encoding_id); | |
| 25 CIDSet CharsetFromOrdering(const CFX_ByteStringC& ordering); | |
| 26 | |
| 27 class CPDF_CMapManager { | |
| 28 public: | |
| 29 CPDF_CMapManager(); | |
| 30 ~CPDF_CMapManager(); | |
| 31 | |
| 32 CPDF_CMap* GetPredefinedCMap(const CFX_ByteString& name, bool bPromptCJK); | |
| 33 CPDF_CID2UnicodeMap* GetCID2UnicodeMap(CIDSet charset, bool bPromptCJK); | |
| 34 | |
| 35 private: | |
| 36 CPDF_CMap* LoadPredefinedCMap(const CFX_ByteString& name, bool bPromptCJK); | |
| 37 CPDF_CID2UnicodeMap* LoadCID2UnicodeMap(CIDSet charset, bool bPromptCJK); | |
| 38 | |
| 39 std::map<CFX_ByteString, CPDF_CMap*> m_CMaps; | |
| 40 CPDF_CID2UnicodeMap* m_CID2UnicodeMaps[6]; | |
| 41 }; | |
| 42 | |
| 43 class CFX_StockFontArray { | |
| 44 public: | |
| 45 CFX_StockFontArray(); | |
| 46 ~CFX_StockFontArray(); | |
| 47 | |
| 48 // Takes ownership of |pFont|, returns unowned pointer to it. | |
| 49 CPDF_Font* SetFont(uint32_t index, std::unique_ptr<CPDF_Font> pFont); | |
| 50 CPDF_Font* GetFont(uint32_t index) const; | |
| 51 | |
| 52 private: | |
| 53 std::unique_ptr<CPDF_Font> m_StockFonts[14]; | |
| 54 }; | |
| 55 | |
| 56 class CPDF_FontGlobals { | |
| 57 public: | |
| 58 CPDF_FontGlobals(); | |
| 59 ~CPDF_FontGlobals(); | |
| 60 | |
| 61 void Clear(CPDF_Document* pDoc); | |
| 62 CPDF_Font* Find(CPDF_Document* pDoc, uint32_t index); | |
| 63 | |
| 64 // Takes ownership of |pFont|, returns unowned pointer to it. | |
| 65 CPDF_Font* Set(CPDF_Document* key, | |
| 66 uint32_t index, | |
| 67 std::unique_ptr<CPDF_Font> pFont); | |
| 68 | |
| 69 CPDF_CMapManager m_CMapManager; | |
| 70 struct { | |
| 71 const struct FXCMAP_CMap* m_pMapList; | |
| 72 uint32_t m_Count; | |
| 73 } m_EmbeddedCharsets[CIDSET_NUM_SETS]; | |
| 74 struct { | |
| 75 const uint16_t* m_pMap; | |
| 76 uint32_t m_Count; | |
| 77 } m_EmbeddedToUnicodes[CIDSET_NUM_SETS]; | |
| 78 | |
| 79 private: | |
| 80 std::map<CPDF_Document*, std::unique_ptr<CFX_StockFontArray>> m_StockMap; | |
| 81 }; | |
| 82 | |
| 83 struct CMap_CodeRange { | |
| 84 int m_CharSize; | |
| 85 uint8_t m_Lower[4]; | |
| 86 uint8_t m_Upper[4]; | |
| 87 }; | |
| 88 | |
| 89 class CPDF_CMapParser { | |
| 90 public: | |
| 91 CPDF_CMapParser(); | |
| 92 ~CPDF_CMapParser(); | |
| 93 void Initialize(CPDF_CMap* pMap); | |
| 94 void ParseWord(const CFX_ByteStringC& str); | |
| 95 CFX_BinaryBuf m_AddMaps; | |
| 96 | |
| 97 private: | |
| 98 friend class fpdf_font_cid_CMap_GetCode_Test; | |
| 99 friend class fpdf_font_cid_CMap_GetCodeRange_Test; | |
| 100 | |
| 101 static uint32_t CMap_GetCode(const CFX_ByteStringC& word); | |
| 102 static bool CMap_GetCodeRange(CMap_CodeRange& range, | |
| 103 const CFX_ByteStringC& first, | |
| 104 const CFX_ByteStringC& second); | |
| 105 | |
| 106 CPDF_CMap* m_pCMap; | |
| 107 int m_Status; | |
| 108 int m_CodeSeq; | |
| 109 uint32_t m_CodePoints[4]; | |
| 110 CFX_ArrayTemplate<CMap_CodeRange> m_CodeRanges; | |
| 111 CFX_ByteString m_LastWord; | |
| 112 }; | |
| 113 | |
| 114 enum CIDCoding : uint8_t { | |
| 115 CIDCODING_UNKNOWN = 0, | |
| 116 CIDCODING_GB, | |
| 117 CIDCODING_BIG5, | |
| 118 CIDCODING_JIS, | |
| 119 CIDCODING_KOREA, | |
| 120 CIDCODING_UCS2, | |
| 121 CIDCODING_CID, | |
| 122 CIDCODING_UTF16, | |
| 123 }; | |
| 124 | |
| 125 class CPDF_CMap { | |
| 126 public: | |
| 127 enum CodingScheme : uint8_t { | |
| 128 OneByte, | |
| 129 TwoBytes, | |
| 130 MixedTwoBytes, | |
| 131 MixedFourBytes | |
| 132 }; | |
| 133 | |
| 134 CPDF_CMap(); | |
| 135 ~CPDF_CMap(); | |
| 136 | |
| 137 void LoadPredefined(CPDF_CMapManager* pMgr, | |
| 138 const CFX_ByteString& name, | |
| 139 bool bPromptCJK); | |
| 140 void LoadEmbedded(const uint8_t* pData, uint32_t dwSize); | |
| 141 | |
| 142 bool IsLoaded() const; | |
| 143 bool IsVertWriting() const; | |
| 144 uint16_t CIDFromCharCode(uint32_t charcode) const; | |
| 145 int GetCharSize(uint32_t charcode) const; | |
| 146 uint32_t GetNextChar(const FX_CHAR* pString, int nStrLen, int& offset) const; | |
| 147 int CountChar(const FX_CHAR* pString, int size) const; | |
| 148 int AppendChar(FX_CHAR* str, uint32_t charcode) const; | |
| 149 | |
| 150 private: | |
| 151 friend class CPDF_CMapParser; | |
| 152 friend class CPDF_CIDFont; | |
| 153 | |
| 154 CFX_ByteString m_PredefinedCMap; | |
| 155 bool m_bVertical; | |
| 156 CIDSet m_Charset; | |
| 157 int m_Coding; | |
| 158 CodingScheme m_CodingScheme; | |
| 159 int m_nCodeRanges; | |
| 160 uint8_t* m_pLeadingBytes; | |
| 161 uint16_t* m_pMapping; | |
| 162 uint8_t* m_pAddMapping; | |
| 163 bool m_bLoaded; | |
| 164 const FXCMAP_CMap* m_pEmbedMap; | |
| 165 }; | |
| 166 | |
| 167 class CPDF_CID2UnicodeMap { | |
| 168 public: | |
| 169 CPDF_CID2UnicodeMap(); | |
| 170 ~CPDF_CID2UnicodeMap(); | |
| 171 | |
| 172 bool IsLoaded(); | |
| 173 void Load(CPDF_CMapManager* pMgr, CIDSet charset, bool bPromptCJK); | |
| 174 FX_WCHAR UnicodeFromCID(uint16_t CID); | |
| 175 | |
| 176 private: | |
| 177 CIDSet m_Charset; | |
| 178 const uint16_t* m_pEmbeddedMap; | |
| 179 uint32_t m_EmbeddedCount; | |
| 180 }; | |
| 181 | |
| 182 class CPDF_ToUnicodeMap { | |
| 183 public: | |
| 184 CPDF_ToUnicodeMap(); | |
| 185 ~CPDF_ToUnicodeMap(); | |
| 186 | |
| 187 void Load(CPDF_Stream* pStream); | |
| 188 | |
| 189 CFX_WideString Lookup(uint32_t charcode) const; | |
| 190 uint32_t ReverseLookup(FX_WCHAR unicode) const; | |
| 191 | |
| 192 private: | |
| 193 friend class fpdf_font_StringToCode_Test; | |
| 194 friend class fpdf_font_StringToWideString_Test; | |
| 195 | |
| 196 static uint32_t StringToCode(const CFX_ByteStringC& str); | |
| 197 static CFX_WideString StringToWideString(const CFX_ByteStringC& str); | |
| 198 | |
| 199 std::map<uint32_t, uint32_t> m_Map; | |
| 200 CPDF_CID2UnicodeMap* m_pBaseMap; | |
| 201 CFX_WideTextBuf m_MultiCharBuf; | |
| 202 }; | |
| 203 | |
| 204 #endif // CORE_FPDFAPI_FPDF_FONT_FONT_INT_H_ | |
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Chromium Code Reviews
Issue 2392773003:
Move core/fpdfapi/fpdf_font to core/fpdfapi/font (Closed)
