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1 // Copyright 2014 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 #include "xfa/fxfa/cxfa_fontmgr.h"
8 
9 #include <algorithm>
10 #include <memory>
11 #include <utility>
12 
13 #include "core/fpdfapi/font/cpdf_font.h"
14 #include "core/fpdfapi/parser/cpdf_dictionary.h"
15 #include "core/fpdfapi/parser/cpdf_document.h"
16 #include "third_party/base/ptr_util.h"
17 #include "xfa/fgas/font/cfgas_gefont.h"
18 #include "xfa/fgas/font/fgas_fontutils.h"
19 #include "xfa/fxfa/cxfa_ffapp.h"
20 #include "xfa/fxfa/cxfa_ffdoc.h"
21 
CXFA_FontMgr()22 CXFA_FontMgr::CXFA_FontMgr() {}
23 
~CXFA_FontMgr()24 CXFA_FontMgr::~CXFA_FontMgr() {}
25 
GetFont(CXFA_FFDoc * hDoc,const WideStringView & wsFontFamily,uint32_t dwFontStyles)26 RetainPtr<CFGAS_GEFont> CXFA_FontMgr::GetFont(
27     CXFA_FFDoc* hDoc,
28     const WideStringView& wsFontFamily,
29     uint32_t dwFontStyles) {
30   uint32_t dwHash = FX_HashCode_GetW(wsFontFamily, false);
31   ByteString bsKey = ByteString::Format("%u%u%u", dwHash, dwFontStyles, 0xFFFF);
32   auto iter = m_FontMap.find(bsKey);
33   if (iter != m_FontMap.end())
34     return iter->second;
35 
36   WideString wsEnglishName = FGAS_FontNameToEnglishName(wsFontFamily);
37 
38   CFGAS_PDFFontMgr* pMgr = hDoc->GetPDFFontMgr();
39   CPDF_Font* pPDFFont = nullptr;
40   RetainPtr<CFGAS_GEFont> pFont;
41   if (pMgr) {
42     pFont = pMgr->GetFont(wsEnglishName.AsStringView(), dwFontStyles, &pPDFFont,
43                           true);
44     if (pFont)
45       return pFont;
46   }
47   if (!pFont && m_pDefFontMgr)
48     pFont = m_pDefFontMgr->GetFont(hDoc->GetApp()->GetFDEFontMgr(),
49                                    wsFontFamily, dwFontStyles);
50 
51   if (!pFont && pMgr) {
52     pPDFFont = nullptr;
53     pFont = pMgr->GetFont(wsEnglishName.AsStringView(), dwFontStyles, &pPDFFont,
54                           false);
55     if (pFont)
56       return pFont;
57   }
58   if (!pFont && m_pDefFontMgr) {
59     pFont = m_pDefFontMgr->GetDefaultFont(hDoc->GetApp()->GetFDEFontMgr(),
60                                           wsFontFamily, dwFontStyles);
61   }
62 
63   if (pFont) {
64     if (pPDFFont) {
65       pMgr->SetFont(pFont, pPDFFont);
66       pFont->SetFontProvider(pMgr);
67     }
68     m_FontMap[bsKey] = pFont;
69   }
70   return pFont;
71 }
72 
SetDefFontMgr(std::unique_ptr<CFGAS_DefaultFontManager> pFontMgr)73 void CXFA_FontMgr::SetDefFontMgr(
74     std::unique_ptr<CFGAS_DefaultFontManager> pFontMgr) {
75   m_pDefFontMgr = std::move(pFontMgr);
76 }
77