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_coordinates.h" 15 #include "core/fxcrt/fx_string.h" 16 #include "core/fxcrt/fx_system.h" 17 #include "core/fxcrt/retain_ptr.h" 18 #include "core/fxcrt/unowned_ptr.h" 19 20 enum CIDSet : uint8_t { 21 CIDSET_UNKNOWN, 22 CIDSET_GB1, 23 CIDSET_CNS1, 24 CIDSET_JAPAN1, 25 CIDSET_KOREA1, 26 CIDSET_UNICODE, 27 CIDSET_NUM_SETS 28 }; 29 30 class CFX_CTTGSUBTable; 31 class CPDF_Array; 32 class CPDF_CID2UnicodeMap; 33 class CPDF_CMap; 34 class CPDF_StreamAcc; 35 36 class CPDF_CIDFont final : public CPDF_Font { 37 public: 38 CONSTRUCT_VIA_MAKE_RETAIN; 39 ~CPDF_CIDFont() override; 40 41 static float CIDTransformToFloat(uint8_t ch); 42 43 // CPDF_Font: 44 bool IsCIDFont() const override; 45 const CPDF_CIDFont* AsCIDFont() const override; 46 CPDF_CIDFont* AsCIDFont() override; 47 int GlyphFromCharCode(uint32_t charcode, bool* pVertGlyph) override; 48 int GetCharWidthF(uint32_t charcode) override; 49 FX_RECT GetCharBBox(uint32_t charcode) override; 50 uint32_t GetNextChar(ByteStringView pString, size_t* pOffset) const override; 51 size_t CountChar(ByteStringView pString) const override; 52 int AppendChar(char* str, uint32_t charcode) const override; 53 bool IsVertWriting() const override; 54 bool IsUnicodeCompatible() const override; 55 bool Load() override; 56 WideString UnicodeFromCharCode(uint32_t charcode) const override; 57 uint32_t CharCodeFromUnicode(wchar_t Unicode) const override; 58 59 uint16_t CIDFromCharCode(uint32_t charcode) const; 60 const uint8_t* GetCIDTransform(uint16_t cid) const; 61 int16_t GetVertWidth(uint16_t cid) const; 62 CFX_Point16 GetVertOrigin(uint16_t cid) const; 63 int GetCharSize(uint32_t charcode) const; 64 65 private: 66 CPDF_CIDFont(CPDF_Document* pDocument, CPDF_Dictionary* pFontDict); 67 68 void LoadGB2312(); 69 int GetGlyphIndex(uint32_t unicodeb, bool* pVertGlyph); 70 int GetVerticalGlyph(int index, bool* pVertGlyph); 71 void LoadSubstFont(); 72 wchar_t GetUnicodeFromCharCode(uint32_t charcode) const; 73 74 RetainPtr<const CPDF_CMap> m_pCMap; 75 UnownedPtr<const CPDF_CID2UnicodeMap> m_pCID2UnicodeMap; 76 RetainPtr<CPDF_StreamAcc> m_pStreamAcc; 77 std::unique_ptr<CFX_CTTGSUBTable> m_pTTGSUBTable; 78 bool m_bType1 = false; 79 bool m_bCIDIsGID = false; 80 bool m_bAnsiWidthsFixed = false; 81 bool m_bAdobeCourierStd = false; 82 CIDSet m_Charset = CIDSET_UNKNOWN; 83 int16_t m_DefaultWidth = 1000; 84 int16_t m_DefaultVY = 880; 85 int16_t m_DefaultW1 = -1000; 86 std::vector<int> m_WidthList; 87 std::vector<int> m_VertMetrics; 88 FX_RECT m_CharBBox[256]; 89 }; 90 91 #endif // CORE_FPDFAPI_FONT_CPDF_CIDFONT_H_ 92