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      1 // Copyright 2017 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_FONTGLOBALS_H_
      8 #define CORE_FPDFAPI_FONT_CPDF_FONTGLOBALS_H_
      9 
     10 #include <map>
     11 #include <memory>
     12 #include <utility>
     13 
     14 #include "core/fpdfapi/cmaps/cmap_int.h"
     15 #include "core/fpdfapi/font/cfx_stockfontarray.h"
     16 #include "core/fpdfapi/font/cpdf_cmapmanager.h"
     17 
     18 class CPDF_FontGlobals {
     19  public:
     20   CPDF_FontGlobals();
     21   ~CPDF_FontGlobals();
     22 
     23   void Clear(CPDF_Document* pDoc);
     24   CPDF_Font* Find(CPDF_Document* pDoc, uint32_t index);
     25 
     26   // Takes ownership of |pFont|, returns unowned pointer to it.
     27   CPDF_Font* Set(CPDF_Document* key,
     28                  uint32_t index,
     29                  std::unique_ptr<CPDF_Font> pFont);
     30 
     31   void SetEmbeddedCharset(size_t idx, const FXCMAP_CMap* map, uint32_t count) {
     32     m_EmbeddedCharsets[idx].m_pMapList = map;
     33     m_EmbeddedCharsets[idx].m_Count = count;
     34   }
     35   std::pair<uint32_t, const FXCMAP_CMap*> GetEmbeddedCharset(size_t idx) const {
     36     return {m_EmbeddedCharsets[idx].m_Count,
     37             m_EmbeddedCharsets[idx].m_pMapList.Get()};
     38   }
     39   void SetEmbeddedToUnicode(size_t idx, const uint16_t* map, uint32_t count) {
     40     m_EmbeddedToUnicodes[idx].m_pMap = map;
     41     m_EmbeddedToUnicodes[idx].m_Count = count;
     42   }
     43   std::pair<uint32_t, const uint16_t*> GetEmbeddedToUnicode(size_t idx) {
     44     return {m_EmbeddedToUnicodes[idx].m_Count,
     45             m_EmbeddedToUnicodes[idx].m_pMap};
     46   }
     47 
     48   CPDF_CMapManager* GetCMapManager() { return &m_CMapManager; }
     49 
     50  private:
     51   CPDF_CMapManager m_CMapManager;
     52   struct {
     53     UnownedPtr<const FXCMAP_CMap> m_pMapList;
     54     uint32_t m_Count;
     55   } m_EmbeddedCharsets[CIDSET_NUM_SETS];
     56   struct {
     57     const uint16_t* m_pMap;
     58     uint32_t m_Count;
     59   } m_EmbeddedToUnicodes[CIDSET_NUM_SETS];
     60 
     61   std::map<CPDF_Document*, std::unique_ptr<CFX_StockFontArray>> m_StockMap;
     62 };
     63 
     64 #endif  // CORE_FPDFAPI_FONT_CPDF_FONTGLOBALS_H_
     65