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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 "public/fpdf_sysfontinfo.h" | |
8 | |
9 #include "fpdfsdk/include/fsdk_define.h" | |
10 #include "fpdfsdk/include/pdfwindow/PWL_FontMap.h" | |
11 | |
12 class CFX_ExternalFontInfo final : public IFX_SystemFontInfo { | |
13 public: | |
14 explicit CFX_ExternalFontInfo(FPDF_SYSFONTINFO* pInfo) : m_pInfo(pInfo) {} | |
15 | |
16 void Release() override { | |
17 if (m_pInfo->Release) | |
18 m_pInfo->Release(m_pInfo); | |
19 delete this; | |
20 } | |
21 | |
22 FX_BOOL EnumFontList(CFX_FontMapper* pMapper) override { | |
23 if (m_pInfo->EnumFonts) { | |
24 m_pInfo->EnumFonts(m_pInfo, pMapper); | |
25 return TRUE; | |
26 } | |
27 return FALSE; | |
28 } | |
29 | |
30 void* MapFont(int weight, | |
31 FX_BOOL bItalic, | |
32 int charset, | |
33 int pitch_family, | |
34 const FX_CHAR* family, | |
35 int& iExact) override { | |
36 if (m_pInfo->MapFont) | |
37 return m_pInfo->MapFont(m_pInfo, weight, bItalic, charset, pitch_family, | |
38 family, &iExact); | |
39 return NULL; | |
40 } | |
41 | |
42 void* GetFont(const FX_CHAR* family) override { | |
43 if (m_pInfo->GetFont) | |
44 return m_pInfo->GetFont(m_pInfo, family); | |
45 return NULL; | |
46 } | |
47 | |
48 FX_DWORD GetFontData(void* hFont, | |
49 FX_DWORD table, | |
50 uint8_t* buffer, | |
51 FX_DWORD size) override { | |
52 if (m_pInfo->GetFontData) | |
53 return m_pInfo->GetFontData(m_pInfo, hFont, table, buffer, size); | |
54 return 0; | |
55 } | |
56 | |
57 FX_BOOL GetFaceName(void* hFont, CFX_ByteString& name) override { | |
58 if (!m_pInfo->GetFaceName) | |
59 return FALSE; | |
60 FX_DWORD size = m_pInfo->GetFaceName(m_pInfo, hFont, NULL, 0); | |
61 if (size == 0) | |
62 return FALSE; | |
63 char* buffer = FX_Alloc(char, size); | |
64 size = m_pInfo->GetFaceName(m_pInfo, hFont, buffer, size); | |
65 name = CFX_ByteString(buffer, size); | |
66 FX_Free(buffer); | |
67 return TRUE; | |
68 } | |
69 | |
70 FX_BOOL GetFontCharset(void* hFont, int& charset) override { | |
71 if (m_pInfo->GetFontCharset) { | |
72 charset = m_pInfo->GetFontCharset(m_pInfo, hFont); | |
73 return TRUE; | |
74 } | |
75 return FALSE; | |
76 } | |
77 | |
78 void DeleteFont(void* hFont) override { | |
79 if (m_pInfo->DeleteFont) | |
80 m_pInfo->DeleteFont(m_pInfo, hFont); | |
81 } | |
82 | |
83 private: | |
84 ~CFX_ExternalFontInfo() override {} | |
85 | |
86 FPDF_SYSFONTINFO* const m_pInfo; | |
87 }; | |
88 | |
89 DLLEXPORT void STDCALL FPDF_AddInstalledFont(void* mapper, | |
90 const char* name, | |
91 int charset) { | |
92 ((CFX_FontMapper*)mapper)->AddInstalledFont(name, charset); | |
93 } | |
94 | |
95 DLLEXPORT void STDCALL FPDF_SetSystemFontInfo(FPDF_SYSFONTINFO* pFontInfoExt) { | |
96 if (pFontInfoExt->version != 1) | |
97 return; | |
98 | |
99 CFX_GEModule::Get()->GetFontMgr()->SetSystemFontInfo( | |
100 new CFX_ExternalFontInfo(pFontInfoExt)); | |
101 } | |
102 | |
103 DLLEXPORT const FPDF_CharsetFontMap* STDCALL FPDF_GetDefaultTTFMap() { | |
104 return CPWL_FontMap::defaultTTFMap; | |
105 } | |
106 | |
107 struct FPDF_SYSFONTINFO_DEFAULT : public FPDF_SYSFONTINFO { | |
108 IFX_SystemFontInfo* m_pFontInfo; | |
109 }; | |
110 | |
111 static void DefaultRelease(struct _FPDF_SYSFONTINFO* pThis) { | |
112 ((FPDF_SYSFONTINFO_DEFAULT*)pThis)->m_pFontInfo->Release(); | |
113 } | |
114 | |
115 static void DefaultEnumFonts(struct _FPDF_SYSFONTINFO* pThis, void* pMapper) { | |
116 ((FPDF_SYSFONTINFO_DEFAULT*)pThis) | |
117 ->m_pFontInfo->EnumFontList((CFX_FontMapper*)pMapper); | |
118 } | |
119 | |
120 static void* DefaultMapFont(struct _FPDF_SYSFONTINFO* pThis, | |
121 int weight, | |
122 int bItalic, | |
123 int charset, | |
124 int pitch_family, | |
125 const char* family, | |
126 int* bExact) { | |
127 return ((FPDF_SYSFONTINFO_DEFAULT*)pThis) | |
128 ->m_pFontInfo->MapFont(weight, bItalic, charset, pitch_family, family, | |
129 *bExact); | |
130 } | |
131 | |
132 void* DefaultGetFont(struct _FPDF_SYSFONTINFO* pThis, const char* family) { | |
133 return ((FPDF_SYSFONTINFO_DEFAULT*)pThis)->m_pFontInfo->GetFont(family); | |
134 } | |
135 | |
136 static unsigned long DefaultGetFontData(struct _FPDF_SYSFONTINFO* pThis, | |
137 void* hFont, | |
138 unsigned int table, | |
139 unsigned char* buffer, | |
140 unsigned long buf_size) { | |
141 return ((FPDF_SYSFONTINFO_DEFAULT*)pThis) | |
142 ->m_pFontInfo->GetFontData(hFont, table, buffer, buf_size); | |
143 } | |
144 | |
145 static unsigned long DefaultGetFaceName(struct _FPDF_SYSFONTINFO* pThis, | |
146 void* hFont, | |
147 char* buffer, | |
148 unsigned long buf_size) { | |
149 CFX_ByteString name; | |
150 if (!((FPDF_SYSFONTINFO_DEFAULT*)pThis) | |
151 ->m_pFontInfo->GetFaceName(hFont, name)) | |
152 return 0; | |
153 if (name.GetLength() >= (long)buf_size) | |
154 return name.GetLength() + 1; | |
155 FXSYS_strcpy(buffer, name); | |
156 return name.GetLength() + 1; | |
157 } | |
158 | |
159 static int DefaultGetFontCharset(struct _FPDF_SYSFONTINFO* pThis, void* hFont) { | |
160 int charset; | |
161 if (!((FPDF_SYSFONTINFO_DEFAULT*)pThis) | |
162 ->m_pFontInfo->GetFontCharset(hFont, charset)) | |
163 return 0; | |
164 return charset; | |
165 } | |
166 | |
167 static void DefaultDeleteFont(struct _FPDF_SYSFONTINFO* pThis, void* hFont) { | |
168 ((FPDF_SYSFONTINFO_DEFAULT*)pThis)->m_pFontInfo->DeleteFont(hFont); | |
169 } | |
170 | |
171 DLLEXPORT FPDF_SYSFONTINFO* STDCALL FPDF_GetDefaultSystemFontInfo() { | |
172 IFX_SystemFontInfo* pFontInfo = IFX_SystemFontInfo::CreateDefault(nullptr); | |
173 if (!pFontInfo) | |
174 return NULL; | |
175 | |
176 FPDF_SYSFONTINFO_DEFAULT* pFontInfoExt = | |
177 FX_Alloc(FPDF_SYSFONTINFO_DEFAULT, 1); | |
178 pFontInfoExt->DeleteFont = DefaultDeleteFont; | |
179 pFontInfoExt->EnumFonts = DefaultEnumFonts; | |
180 pFontInfoExt->GetFaceName = DefaultGetFaceName; | |
181 pFontInfoExt->GetFont = DefaultGetFont; | |
182 pFontInfoExt->GetFontCharset = DefaultGetFontCharset; | |
183 pFontInfoExt->GetFontData = DefaultGetFontData; | |
184 pFontInfoExt->MapFont = DefaultMapFont; | |
185 pFontInfoExt->Release = DefaultRelease; | |
186 pFontInfoExt->version = 1; | |
187 pFontInfoExt->m_pFontInfo = pFontInfo; | |
188 return pFontInfoExt; | |
189 } | |
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