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_FPDFAPI_FONT_CPDF_CIDFONT_H_ 8 #define CORE_FPDFAPI_FONT_CPDF_CIDFONT_H_ 9 10 #include <memory> 11 #include <vector> 12 13 #include "core/fpdfapi/font/cpdf_font.h" 14 #include "core/fxcrt/fx_string.h" 15 #include "core/fxcrt/fx_system.h" 16 #include "core/fxcrt/retain_ptr.h" 17 #include "core/fxcrt/unowned_ptr.h" 18 19 enum CIDSet : uint8_t { 20 CIDSET_UNKNOWN, 21 CIDSET_GB1, 22 CIDSET_CNS1, 23 CIDSET_JAPAN1, 24 CIDSET_KOREA1, 25 CIDSET_UNICODE, 26 CIDSET_NUM_SETS 27 }; 28 29 class CFX_CTTGSUBTable; 30 class CPDF_Array; 31 class CPDF_CID2UnicodeMap; 32 class CPDF_CMap; 33 class CPDF_StreamAcc; 34 35 class CPDF_CIDFont final : public CPDF_Font { 36 public: 37 template <typename T, typename... Args> 38 friend RetainPtr<T> pdfium::MakeRetain(Args&&... args); 39 40 ~CPDF_CIDFont() override; 41 42 static float CIDTransformToFloat(uint8_t ch); 43 44 // CPDF_Font: 45 bool IsCIDFont() const override; 46 const CPDF_CIDFont* AsCIDFont() const override; 47 CPDF_CIDFont* AsCIDFont() override; 48 int GlyphFromCharCode(uint32_t charcode, bool* pVertGlyph) override; 49 uint32_t GetCharWidthF(uint32_t charcode) override; 50 FX_RECT GetCharBBox(uint32_t charcode) override; 51 uint32_t GetNextChar(ByteStringView pString, size_t* pOffset) const override; 52 size_t CountChar(ByteStringView pString) const override; 53 int AppendChar(char* str, uint32_t charcode) const override; 54 bool IsVertWriting() const override; 55 bool IsUnicodeCompatible() const override; 56 bool Load() override; 57 WideString UnicodeFromCharCode(uint32_t charcode) const override; 58 uint32_t CharCodeFromUnicode(wchar_t Unicode) const override; 59 60 uint16_t CIDFromCharCode(uint32_t charcode) const; 61 const uint8_t* GetCIDTransform(uint16_t CID) const; 62 short GetVertWidth(uint16_t CID) const; 63 void GetVertOrigin(uint16_t CID, short& vx, short& vy) const; 64 int GetCharSize(uint32_t charcode) const; 65 66 private: 67 CPDF_CIDFont(CPDF_Document* pDocument, CPDF_Dictionary* pFontDict); 68 69 void LoadGB2312(); 70 int GetGlyphIndex(uint32_t unicodeb, bool* pVertGlyph); 71 int GetVerticalGlyph(int index, bool* pVertGlyph); 72 void LoadMetricsArray(const CPDF_Array* pArray, 73 std::vector<uint32_t>* result, 74 int nElements); 75 void LoadSubstFont(); 76 wchar_t GetUnicodeFromCharCode(uint32_t charcode) const; 77 78 RetainPtr<const CPDF_CMap> m_pCMap; 79 UnownedPtr<const CPDF_CID2UnicodeMap> m_pCID2UnicodeMap; 80 RetainPtr<CPDF_StreamAcc> m_pStreamAcc; 81 std::unique_ptr<CFX_CTTGSUBTable> m_pTTGSUBTable; 82 bool m_bType1 = false; 83 bool m_bCIDIsGID = false; 84 bool m_bAnsiWidthsFixed = false; 85 bool m_bAdobeCourierStd = false; 86 CIDSet m_Charset = CIDSET_UNKNOWN; 87 uint16_t m_DefaultWidth = 1000; 88 short m_DefaultVY = 880; 89 short m_DefaultW1 = -1000; 90 std::vector<uint32_t> m_WidthList; 91 std::vector<uint32_t> m_VertMetrics; 92 FX_RECT m_CharBBox[256]; 93 }; 94 95 #endif // CORE_FPDFAPI_FONT_CPDF_CIDFONT_H_ 96