1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
// Copyright 2014 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
#include "public/fpdf_sysfontinfo.h"
#include <memory>
#include "core/fxcrt/fx_codepage.h"
#include "core/fxge/cfx_font.h"
#include "core/fxge/cfx_fontmapper.h"
#include "core/fxge/cfx_fontmgr.h"
#include "core/fxge/cfx_gemodule.h"
#include "core/fxge/fx_font.h"
#include "core/fxge/systemfontinfo_iface.h"
#include "fpdfsdk/cpdfsdk_helpers.h"
#include "fpdfsdk/pwl/cpwl_font_map.h"
#include "third_party/base/ptr_util.h"
static_assert(FXFONT_ANSI_CHARSET == FX_CHARSET_ANSI, "Charset must match");
static_assert(FXFONT_DEFAULT_CHARSET == FX_CHARSET_Default,
"Charset must match");
static_assert(FXFONT_SYMBOL_CHARSET == FX_CHARSET_Symbol, "Charset must match");
static_assert(FXFONT_SHIFTJIS_CHARSET == FX_CHARSET_ShiftJIS,
"Charset must match");
static_assert(FXFONT_HANGEUL_CHARSET == FX_CHARSET_Hangul,
"Charset must match");
static_assert(FXFONT_GB2312_CHARSET == FX_CHARSET_ChineseSimplified,
"Charset must match");
static_assert(FXFONT_CHINESEBIG5_CHARSET == FX_CHARSET_ChineseTraditional,
"Charset must match");
static_assert(sizeof(CFX_Font::CharsetFontMap) == sizeof(FPDF_CharsetFontMap),
"CFX_Font::CharsetFontMap should be same as FPDF_CharsetFontMap");
class CFX_ExternalFontInfo final : public SystemFontInfoIface {
public:
explicit CFX_ExternalFontInfo(FPDF_SYSFONTINFO* pInfo) : m_pInfo(pInfo) {}
~CFX_ExternalFontInfo() override {
if (m_pInfo->Release)
m_pInfo->Release(m_pInfo);
}
bool EnumFontList(CFX_FontMapper* pMapper) override {
if (m_pInfo->EnumFonts) {
m_pInfo->EnumFonts(m_pInfo, pMapper);
return true;
}
return false;
}
void* MapFont(int weight,
bool bItalic,
int charset,
int pitch_family,
const char* family) override {
if (!m_pInfo->MapFont)
return nullptr;
int iExact;
return m_pInfo->MapFont(m_pInfo, weight, bItalic, charset, pitch_family,
family, &iExact);
}
void* GetFont(const char* family) override {
if (!m_pInfo->GetFont)
return nullptr;
return m_pInfo->GetFont(m_pInfo, family);
}
uint32_t GetFontData(void* hFont,
uint32_t table,
uint8_t* buffer,
uint32_t size) override {
if (!m_pInfo->GetFontData)
return 0;
return m_pInfo->GetFontData(m_pInfo, hFont, table, buffer, size);
}
bool GetFaceName(void* hFont, ByteString* name) override {
if (!m_pInfo->GetFaceName)
return false;
uint32_t size = m_pInfo->GetFaceName(m_pInfo, hFont, nullptr, 0);
if (size == 0)
return false;
char* buffer = FX_Alloc(char, size);
size = m_pInfo->GetFaceName(m_pInfo, hFont, buffer, size);
*name = ByteString(buffer, size);
FX_Free(buffer);
return true;
}
bool GetFontCharset(void* hFont, int* charset) override {
if (!m_pInfo->GetFontCharset)
return false;
*charset = m_pInfo->GetFontCharset(m_pInfo, hFont);
return true;
}
void DeleteFont(void* hFont) override {
if (m_pInfo->DeleteFont)
m_pInfo->DeleteFont(m_pInfo, hFont);
}
private:
FPDF_SYSFONTINFO* const m_pInfo;
};
FPDF_EXPORT void FPDF_CALLCONV FPDF_AddInstalledFont(void* mapper,
const char* name,
int charset) {
CFX_FontMapper* pMapper = static_cast<CFX_FontMapper*>(mapper);
pMapper->AddInstalledFont(name, charset);
}
FPDF_EXPORT void FPDF_CALLCONV
FPDF_SetSystemFontInfo(FPDF_SYSFONTINFO* pFontInfoExt) {
if (pFontInfoExt->version != 1)
return;
CFX_GEModule::Get()->GetFontMgr()->SetSystemFontInfo(
pdfium::MakeUnique<CFX_ExternalFontInfo>(pFontInfoExt));
}
FPDF_EXPORT const FPDF_CharsetFontMap* FPDF_CALLCONV FPDF_GetDefaultTTFMap() {
return reinterpret_cast<const FPDF_CharsetFontMap*>(CFX_Font::defaultTTFMap);
}
struct FPDF_SYSFONTINFO_DEFAULT final : public FPDF_SYSFONTINFO {
UnownedPtr<SystemFontInfoIface> m_pFontInfo;
};
static void DefaultRelease(struct _FPDF_SYSFONTINFO* pThis) {
auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
delete pDefault->m_pFontInfo.Release();
}
static void DefaultEnumFonts(struct _FPDF_SYSFONTINFO* pThis, void* pMapper) {
auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
pDefault->m_pFontInfo->EnumFontList(static_cast<CFX_FontMapper*>(pMapper));
}
static void* DefaultMapFont(struct _FPDF_SYSFONTINFO* pThis,
int weight,
int bItalic,
int charset,
int pitch_family,
const char* family,
int* bExact) {
auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
return pDefault->m_pFontInfo->MapFont(weight, !!bItalic, charset,
pitch_family, family);
}
void* DefaultGetFont(struct _FPDF_SYSFONTINFO* pThis, const char* family) {
auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
return pDefault->m_pFontInfo->GetFont(family);
}
static unsigned long DefaultGetFontData(struct _FPDF_SYSFONTINFO* pThis,
void* hFont,
unsigned int table,
unsigned char* buffer,
unsigned long buf_size) {
auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
return pDefault->m_pFontInfo->GetFontData(hFont, table, buffer, buf_size);
}
static unsigned long DefaultGetFaceName(struct _FPDF_SYSFONTINFO* pThis,
void* hFont,
char* buffer,
unsigned long buf_size) {
ByteString name;
auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
if (!pDefault->m_pFontInfo->GetFaceName(hFont, &name))
return 0;
if (name.GetLength() >= static_cast<size_t>(buf_size))
return name.GetLength() + 1;
strncpy(buffer, name.c_str(),
(name.GetLength() + 1) * sizeof(ByteString::CharType));
return name.GetLength() + 1;
}
static int DefaultGetFontCharset(struct _FPDF_SYSFONTINFO* pThis, void* hFont) {
int charset;
auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
if (!pDefault->m_pFontInfo->GetFontCharset(hFont, &charset))
return 0;
return charset;
}
static void DefaultDeleteFont(struct _FPDF_SYSFONTINFO* pThis, void* hFont) {
auto* pDefault = static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pThis);
pDefault->m_pFontInfo->DeleteFont(hFont);
}
FPDF_EXPORT FPDF_SYSFONTINFO* FPDF_CALLCONV FPDF_GetDefaultSystemFontInfo() {
std::unique_ptr<SystemFontInfoIface> pFontInfo =
SystemFontInfoIface::CreateDefault(nullptr);
if (!pFontInfo)
return nullptr;
FPDF_SYSFONTINFO_DEFAULT* pFontInfoExt =
FX_Alloc(FPDF_SYSFONTINFO_DEFAULT, 1);
pFontInfoExt->DeleteFont = DefaultDeleteFont;
pFontInfoExt->EnumFonts = DefaultEnumFonts;
pFontInfoExt->GetFaceName = DefaultGetFaceName;
pFontInfoExt->GetFont = DefaultGetFont;
pFontInfoExt->GetFontCharset = DefaultGetFontCharset;
pFontInfoExt->GetFontData = DefaultGetFontData;
pFontInfoExt->MapFont = DefaultMapFont;
pFontInfoExt->Release = DefaultRelease;
pFontInfoExt->version = 1;
pFontInfoExt->m_pFontInfo = pFontInfo.release();
return pFontInfoExt;
}
FPDF_EXPORT void FPDF_CALLCONV
FPDF_FreeDefaultSystemFontInfo(FPDF_SYSFONTINFO* pDefaultFontInfo) {
FX_Free(static_cast<FPDF_SYSFONTINFO_DEFAULT*>(pDefaultFontInfo));
}
|
