1 // Copyright 2016 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_FXGE_CFX_FONTMAPPER_H_ 8 #define CORE_FXGE_CFX_FONTMAPPER_H_ 9 10 #include <memory> 11 #include <utility> 12 #include <vector> 13 14 #include "core/fxcrt/fx_memory_wrappers.h" 15 #include "core/fxcrt/fx_string.h" 16 #include "core/fxge/cfx_face.h" 17 #include "third_party/base/optional.h" 18 19 class CFX_FontMgr; 20 class CFX_SubstFont; 21 class SystemFontInfoIface; 22 23 class CFX_FontMapper { 24 public: 25 enum StandardFont { 26 kCourier = 0, 27 kCourierBold, 28 kCourierBoldOblique, 29 kCourierOblique, 30 kHelvetica, 31 kHelveticaBold, 32 kHelveticaBoldOblique, 33 kHelveticaOblique, 34 kTimes, 35 kTimesBold, 36 kTimesBoldOblique, 37 kTimesOblique, 38 kSymbol, 39 kDingbats, 40 }; 41 42 explicit CFX_FontMapper(CFX_FontMgr* mgr); 43 ~CFX_FontMapper(); 44 45 static Optional<StandardFont> GetStandardFontName(ByteString* name); 46 static bool IsSymbolicFont(StandardFont font); 47 static bool IsFixedFont(StandardFont font); MakeTag(char c1,char c2,char c3,char c4)48 static constexpr uint32_t MakeTag(char c1, char c2, char c3, char c4) { 49 return static_cast<uint8_t>(c1) << 24 | static_cast<uint8_t>(c2) << 16 | 50 static_cast<uint8_t>(c3) << 8 | static_cast<uint8_t>(c4); 51 } 52 53 void SetSystemFontInfo(std::unique_ptr<SystemFontInfoIface> pFontInfo); 54 void AddInstalledFont(const ByteString& name, int charset); 55 void LoadInstalledFonts(); 56 57 RetainPtr<CFX_Face> FindSubstFont(const ByteString& face_name, 58 bool bTrueType, 59 uint32_t flags, 60 int weight, 61 int italic_angle, 62 int CharsetCP, 63 CFX_SubstFont* pSubstFont); 64 65 bool IsBuiltinFace(const RetainPtr<CFX_Face>& face) const; 66 int GetFaceSize() const; GetFaceName(int index)67 ByteString GetFaceName(int index) const { return m_FaceArray[index].name; } 68 69 #ifdef PDF_ENABLE_XFA 70 std::unique_ptr<uint8_t, FxFreeDeleter> RawBytesForIndex( 71 uint32_t index, 72 size_t* returned_length); 73 #endif // PDF_ENABLE_XFA 74 75 std::vector<ByteString> m_InstalledTTFonts; 76 std::vector<std::pair<ByteString, ByteString>> m_LocalizedTTFonts; 77 78 private: 79 static const size_t MM_FACE_COUNT = 2; 80 static const size_t FOXIT_FACE_COUNT = 14; 81 82 uint32_t GetChecksumFromTT(void* hFont); 83 ByteString GetPSNameFromTT(void* hFont); 84 ByteString MatchInstalledFonts(const ByteString& norm_name); 85 RetainPtr<CFX_Face> UseInternalSubst(CFX_SubstFont* pSubstFont, 86 int iBaseFont, 87 int italic_angle, 88 int weight, 89 int pitch_family); 90 RetainPtr<CFX_Face> GetCachedTTCFace(void* hFont, 91 uint32_t ttc_size, 92 uint32_t font_size); 93 RetainPtr<CFX_Face> GetCachedFace(void* hFont, 94 ByteString SubstName, 95 int weight, 96 bool bItalic, 97 uint32_t font_size); 98 99 struct FaceData { 100 ByteString name; 101 uint32_t charset; 102 }; 103 104 bool m_bListLoaded = false; 105 ByteString m_LastFamily; 106 std::vector<FaceData> m_FaceArray; 107 std::unique_ptr<SystemFontInfoIface> m_pFontInfo; 108 UnownedPtr<CFX_FontMgr> const m_pFontMgr; 109 RetainPtr<CFX_Face> m_MMFaces[MM_FACE_COUNT]; 110 RetainPtr<CFX_Face> m_FoxitFaces[FOXIT_FACE_COUNT]; 111 }; 112 113 #endif // CORE_FXGE_CFX_FONTMAPPER_H_ 114