1 // Copyright 2016 The PDFium Authors 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_FXGE_CFX_FOLDERFONTINFO_H_ 8 #define CORE_FXGE_CFX_FOLDERFONTINFO_H_ 9 10 #include <map> 11 #include <memory> 12 #include <vector> 13 14 #include "core/fxcrt/fx_codepage_forward.h" 15 #include "core/fxcrt/unowned_ptr.h" 16 #include "core/fxge/cfx_fontmapper.h" 17 #include "core/fxge/systemfontinfo_iface.h" 18 19 #define CHARSET_FLAG_ANSI (1 << 0) 20 #define CHARSET_FLAG_SYMBOL (1 << 1) 21 #define CHARSET_FLAG_SHIFTJIS (1 << 2) 22 #define CHARSET_FLAG_BIG5 (1 << 3) 23 #define CHARSET_FLAG_GB (1 << 4) 24 #define CHARSET_FLAG_KOREAN (1 << 5) 25 26 class CFX_FolderFontInfo : public SystemFontInfoIface { 27 public: 28 CFX_FolderFontInfo(); 29 ~CFX_FolderFontInfo() override; 30 31 void AddPath(const ByteString& path); 32 33 // SystemFontInfoIface: 34 bool EnumFontList(CFX_FontMapper* pMapper) override; 35 void* MapFont(int weight, 36 bool bItalic, 37 FX_Charset charset, 38 int pitch_family, 39 const ByteString& face) override; 40 void* GetFont(const ByteString& face) override; 41 size_t GetFontData(void* hFont, 42 uint32_t table, 43 pdfium::span<uint8_t> buffer) override; 44 void DeleteFont(void* hFont) override; 45 bool GetFaceName(void* hFont, ByteString* name) override; 46 bool GetFontCharset(void* hFont, FX_Charset* charset) override; 47 48 protected: 49 friend class CFXFolderFontInfoTest; 50 51 class FontFaceInfo { 52 public: 53 static constexpr int32_t kSimilarityScoreMax = 68; 54 55 FontFaceInfo(ByteString filePath, 56 ByteString faceName, 57 ByteString fontTables, 58 uint32_t fontOffset, 59 uint32_t fileSize); 60 61 bool IsEligibleForFindFont(uint32_t flag, FX_Charset charset) const; 62 int32_t SimilarityScore(int weight, 63 bool italic, 64 int pitch_family, 65 bool exact_match_bonus) const; 66 67 const ByteString m_FilePath; 68 const ByteString m_FaceName; 69 const ByteString m_FontTables; 70 const uint32_t m_FontOffset; 71 const uint32_t m_FileSize; 72 uint32_t m_Styles = 0; 73 uint32_t m_Charsets = 0; 74 }; 75 76 void ScanPath(const ByteString& path); 77 void ScanFile(const ByteString& path); 78 void ReportFace(const ByteString& path, 79 FILE* pFile, 80 FX_FILESIZE filesize, 81 uint32_t offset); 82 void* GetSubstFont(const ByteString& face); 83 void* FindFont(int weight, 84 bool bItalic, 85 FX_Charset charset, 86 int pitch_family, 87 const ByteString& family, 88 bool bMatchName); 89 90 std::map<ByteString, std::unique_ptr<FontFaceInfo>> m_FontList; 91 std::vector<ByteString> m_PathList; 92 UnownedPtr<CFX_FontMapper> m_pMapper; 93 }; 94 95 #endif // CORE_FXGE_CFX_FOLDERFONTINFO_H_ 96