text: // Copyright 2016 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 CORE_FXGE_CFX_FOLDERFONTINFO_H_
  #define CORE_FXGE_CFX_FOLDERFONTINFO_H_
  
  #include <map>
  #include <memory>
  #include <vector>
  
  #include "core/fxcrt/fx_codepage_forward.h"
  #include "core/fxcrt/unowned_ptr.h"
  #include "core/fxge/cfx_fontmapper.h"
  #include "core/fxge/systemfontinfo_iface.h"
  
  #define CHARSET_FLAG_ANSI (1 << 0)
  #define CHARSET_FLAG_SYMBOL (1 << 1)
  #define CHARSET_FLAG_SHIFTJIS (1 << 2)
  #define CHARSET_FLAG_BIG5 (1 << 3)
  #define CHARSET_FLAG_GB (1 << 4)
  #define CHARSET_FLAG_KOREAN (1 << 5)
  
  class CFX_FolderFontInfo : public SystemFontInfoIface {
   public:
    CFX_FolderFontInfo();
    ~CFX_FolderFontInfo() override;
  
    void AddPath(const ByteString& path);
  
    // SystemFontInfoIface:
    bool EnumFontList(CFX_FontMapper* pMapper) override;
    void* MapFont(int weight,
                  bool bItalic,
                  FX_Charset charset,
                  int pitch_family,
                  const ByteString& face) override;
    void* GetFont(const ByteString& face) override;
    uint32_t GetFontData(void* hFont,
                         uint32_t table,
                         pdfium::span<uint8_t> buffer) override;
    void DeleteFont(void* hFont) override;
    bool GetFaceName(void* hFont, ByteString* name) override;
    bool GetFontCharset(void* hFont, FX_Charset* charset) override;
  
   protected:
    friend class CFX_FolderFontInfoTest;
  
    class FontFaceInfo {
     public:
      FontFaceInfo(ByteString filePath,
                   ByteString faceName,
                   ByteString fontTables,
                   uint32_t fontOffset,
                   uint32_t fileSize);
  
      const ByteString m_FilePath;
      const ByteString m_FaceName;
      const ByteString m_FontTables;
      const uint32_t m_FontOffset;
      const uint32_t m_FileSize;
      uint32_t m_Styles = 0;
      uint32_t m_Charsets = 0;
    };
  
    void ScanPath(const ByteString& path);
    void ScanFile(const ByteString& path);
    void ReportFace(const ByteString& path,
                    FILE* pFile,
                    FX_FILESIZE filesize,
                    uint32_t offset);
    void* GetSubstFont(const ByteString& face);
    void* FindFont(int weight,
                   bool bItalic,
                   FX_Charset charset,
                   int pitch_family,
                   const ByteString& family,
                   bool bMatchName);
  
    std::map<ByteString, std::unique_ptr<FontFaceInfo>> m_FontList;
    std::vector<ByteString> m_PathList;
    UnownedPtr<CFX_FontMapper> m_pMapper;
  };
  
  #endif  // CORE_FXGE_CFX_FOLDERFONTINFO_H_
  