text: // Copyright 2014 PDFium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
  
  #ifndef FPDFSDK_PDFWINDOW_PWL_FONTMAP_H_
  #define FPDFSDK_PDFWINDOW_PWL_FONTMAP_H_
  
  #include <memory>
  
  #include "core/fpdfdoc/include/ipvt_fontmap.h"
  #include "fpdfsdk/fxedit/include/fx_edit.h"
  #include "public/fpdf_sysfontinfo.h"
  
  class CPDF_Document;
  class CFX_SystemHandler;
  
  struct CPWL_FontMap_Data {
    CPDF_Font* pFont;
    int32_t nCharset;
    CFX_ByteString sFontName;
  };
  
  struct CPWL_FontMap_Native {
    int32_t nCharset;
    CFX_ByteString sFontName;
  };
  
  #ifndef ANSI_CHARSET
  
  #define ANSI_CHARSET 0
  #define DEFAULT_CHARSET 1
  #define SYMBOL_CHARSET 2
  #define SHIFTJIS_CHARSET 128
  #define HANGEUL_CHARSET 129
  #define HANGUL_CHARSET 129
  #define GB2312_CHARSET 134
  #define CHINESEBIG5_CHARSET 136
  #define OEM_CHARSET 255
  #define JOHAB_CHARSET 130
  #define HEBREW_CHARSET 177
  #define ARABIC_CHARSET 178
  #define GREEK_CHARSET 161
  #define TURKISH_CHARSET 162
  #define VIETNAMESE_CHARSET 163
  #define THAI_CHARSET 222
  #define EASTEUROPE_CHARSET 238
  #define RUSSIAN_CHARSET 204
  #define BALTIC_CHARSET 186
  
  #endif
  
  class CPWL_FontMap : public IPVT_FontMap {
   public:
    CPWL_FontMap(CFX_SystemHandler* pSystemHandler);
    ~CPWL_FontMap() override;
  
    // IPVT_FontMap
    CPDF_Font* GetPDFFont(int32_t nFontIndex) override;
    CFX_ByteString GetPDFFontAlias(int32_t nFontIndex) override;
    int32_t GetWordFontIndex(uint16_t word,
                             int32_t nCharset,
                             int32_t nFontIndex) override;
    int32_t CharCodeFromUnicode(int32_t nFontIndex, uint16_t word) override;
    int32_t CharSetFromUnicode(uint16_t word, int32_t nOldCharset) override;
  
    int32_t GetFontMapCount() const;
    const CPWL_FontMap_Data* GetFontMapData(int32_t nIndex) const;
    static int32_t GetNativeCharset();
    CFX_ByteString GetNativeFontName(int32_t nCharset);
  
    static CFX_ByteString GetDefaultFontByCharset(int32_t nCharset);
    static const FPDF_CharsetFontMap defaultTTFMap[];
  
   protected:
    virtual void Initialize();
    virtual CPDF_Document* GetDocument();
    virtual CPDF_Font* FindFontSameCharset(CFX_ByteString& sFontAlias,
                                           int32_t nCharset);
    virtual void AddedFont(CPDF_Font* pFont, const CFX_ByteString& sFontAlias);
  
    FX_BOOL KnowWord(int32_t nFontIndex, uint16_t word);
  
    void Empty();
    int32_t GetFontIndex(const CFX_ByteString& sFontName,
                         int32_t nCharset,
                         FX_BOOL bFind);
    int32_t GetPWLFontIndex(uint16_t word, int32_t nCharset);
    int32_t AddFontData(CPDF_Font* pFont,
                        const CFX_ByteString& sFontAlias,
                        int32_t nCharset = DEFAULT_CHARSET);
  
    CFX_ByteString EncodeFontAlias(const CFX_ByteString& sFontName,
                                   int32_t nCharset);
    CFX_ByteString EncodeFontAlias(const CFX_ByteString& sFontName);
  
    CFX_ArrayTemplate<CPWL_FontMap_Data*> m_aData;
    CFX_ArrayTemplate<CPWL_FontMap_Native*> m_aNativeFont;
  
   private:
    CFX_ByteString GetFontName(int32_t nFontIndex);
    int32_t FindFont(const CFX_ByteString& sFontName,
                     int32_t nCharset = DEFAULT_CHARSET);
  
    CFX_ByteString GetNativeFont(int32_t nCharset);
    CPDF_Font* AddFontToDocument(CPDF_Document* pDoc,
                                 CFX_ByteString& sFontName,
                                 uint8_t nCharset);
    FX_BOOL IsStandardFont(const CFX_ByteString& sFontName);
    CPDF_Font* AddStandardFont(CPDF_Document* pDoc, CFX_ByteString& sFontName);
    CPDF_Font* AddSystemFont(CPDF_Document* pDoc,
                             CFX_ByteString& sFontName,
                             uint8_t nCharset);
  
    std::unique_ptr<CPDF_Document> m_pPDFDoc;
    CFX_SystemHandler* const m_pSystemHandler;
  };
  
  #endif  // FPDFSDK_PDFWINDOW_PWL_FONTMAP_H_
  