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 XFA_FGAS_FONT_CFGAS_PDFFONTMGR_H_
8 #define XFA_FGAS_FONT_CFGAS_PDFFONTMGR_H_
9 
10 #include <map>
11 
12 #include "core/fpdfapi/parser/cpdf_dictionary.h"
13 #include "core/fpdfapi/parser/cpdf_document.h"
14 #include "core/fxcrt/fx_string.h"
15 #include "core/fxcrt/observable.h"
16 #include "core/fxcrt/retain_ptr.h"
17 
18 class CFGAS_FontMgr;
19 class CFGAS_GEFont;
20 class CPDF_Document;
21 class CPDF_Font;
22 
23 class CFGAS_PDFFontMgr : public Observable<CFGAS_PDFFontMgr> {
24  public:
25   explicit CFGAS_PDFFontMgr(CPDF_Document* pDoc, CFGAS_FontMgr* pFontMgr);
26   ~CFGAS_PDFFontMgr();
27 
28   void SetFont(const RetainPtr<CFGAS_GEFont>& pFont, CPDF_Font* pPDFFont);
29   RetainPtr<CFGAS_GEFont> GetFont(const WideStringView& wsFontFamily,
30                                   uint32_t dwFontStyles,
31                                   CPDF_Font** pPDFFont,
32                                   bool bStrictMatch);
33   bool GetCharWidth(const RetainPtr<CFGAS_GEFont>& pFont,
34                     wchar_t wUnicode,
35                     int32_t* pWidth);
36 
37  private:
38   RetainPtr<CFGAS_GEFont> FindFont(const ByteString& strFamilyName,
39                                    bool bBold,
40                                    bool bItalic,
41                                    CPDF_Font** pPDFFont,
42                                    bool bStrictMatch);
43   ByteString PsNameToFontName(const ByteString& strPsName,
44                               bool bBold,
45                               bool bItalic);
46   bool PsNameMatchDRFontName(const ByteStringView& bsPsName,
47                              bool bBold,
48                              bool bItalic,
49                              const ByteString& bsDRFontName,
50                              bool bStrictMatch);
51 
52   UnownedPtr<CPDF_Document> const m_pDoc;
53   UnownedPtr<CFGAS_FontMgr> const m_pFontMgr;
54   std::map<RetainPtr<CFGAS_GEFont>, CPDF_Font*> m_FDE2PDFFont;
55   std::map<ByteString, RetainPtr<CFGAS_GEFont>> m_FontMap;
56 };
57 
58 #endif  // XFA_FGAS_FONT_CFGAS_PDFFONTMGR_H_
59