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 : public CPDF_Font { 36 public: 37 CPDF_CIDFont(); 38 ~CPDF_CIDFont() override; 39 40 static float CIDTransformToFloat(uint8_t ch); 41 42 // CPDF_Font: 43 bool IsCIDFont() const override; 44 const CPDF_CIDFont* AsCIDFont() const override; 45 CPDF_CIDFont* AsCIDFont() override; 46 int GlyphFromCharCode(uint32_t charcode, bool* pVertGlyph) override; 47 int GetCharWidthF(uint32_t charcode) override; 48 FX_RECT GetCharBBox(uint32_t charcode) override; 49 uint32_t GetNextChar(const char* pString, 50 int nStrLen, 51 int& offset) const override; 52 int CountChar(const char* pString, int size) 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 protected: 67 void LoadGB2312(); 68 int GetGlyphIndex(uint32_t unicodeb, bool* pVertGlyph); 69 int GetVerticalGlyph(int index, bool* pVertGlyph); 70 void LoadMetricsArray(CPDF_Array* pArray, 71 std::vector<uint32_t>* result, 72 int nElements); 73 void LoadSubstFont(); 74 wchar_t GetUnicodeFromCharCode(uint32_t charcode) const; 75 76 RetainPtr<CPDF_CMap> m_pCMap; 77 UnownedPtr<CPDF_CID2UnicodeMap> m_pCID2UnicodeMap; 78 CIDSet m_Charset; 79 bool m_bType1; 80 bool m_bCIDIsGID; 81 uint16_t m_DefaultWidth; 82 RetainPtr<CPDF_StreamAcc> m_pStreamAcc; 83 bool m_bAnsiWidthsFixed; 84 FX_RECT m_CharBBox[256]; 85 std::vector<uint32_t> m_WidthList; 86 short m_DefaultVY; 87 short m_DefaultW1; 88 std::vector<uint32_t> m_VertMetrics; 89 bool m_bAdobeCourierStd; 90 std::unique_ptr<CFX_CTTGSUBTable> m_pTTGSUBTable; 91 }; 92 93 #endif // CORE_FPDFAPI_FONT_CPDF_CIDFONT_H_ 94
