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
#ifndef CORE_FXGE_INCLUDE_FX_FONT_H_
#define CORE_FXGE_INCLUDE_FX_FONT_H_
#include <memory>
#include <vector>
#include "core/fxcrt/include/fx_system.h"
#include "core/fxge/include/cfx_substfont.h"
#include "core/fxge/include/fx_dib.h"
#include "core/fxge/include/fx_freetype.h"
typedef struct FT_FaceRec_* FXFT_Face;
typedef void* FXFT_Library;
class CFX_FaceCache;
class CFX_FontCache;
class CFX_PathData;
class CFX_SizeGlyphCache;
#ifdef _SKIA_SUPPORT_
class SkTypeface;
using CFX_TypeFace = SkTypeface;
#endif
#define FXFONT_FIXED_PITCH 0x01
#define FXFONT_SERIF 0x02
#define FXFONT_SYMBOLIC 0x04
#define FXFONT_SCRIPT 0x08
#define FXFONT_ITALIC 0x40
#define FXFONT_BOLD 0x40000
#define FXFONT_USEEXTERNATTR 0x80000
#define FXFONT_CIDFONT 0x100000
#ifdef PDF_ENABLE_XFA
#define FXFONT_EXACTMATCH 0x80000000
#endif // PDF_ENABLE_XFA
#define FXFONT_ANSI_CHARSET 0
#define FXFONT_DEFAULT_CHARSET 1
#define FXFONT_SYMBOL_CHARSET 2
#define FXFONT_SHIFTJIS_CHARSET 128
#define FXFONT_HANGEUL_CHARSET 129
#define FXFONT_GB2312_CHARSET 134
#define FXFONT_CHINESEBIG5_CHARSET 136
#define FXFONT_THAI_CHARSET 222
#define FXFONT_EASTEUROPE_CHARSET 238
#define FXFONT_RUSSIAN_CHARSET 204
#define FXFONT_GREEK_CHARSET 161
#define FXFONT_TURKISH_CHARSET 162
#define FXFONT_HEBREW_CHARSET 177
#define FXFONT_ARABIC_CHARSET 178
#define FXFONT_BALTIC_CHARSET 186
#define FXFONT_FF_FIXEDPITCH 1
#define FXFONT_FF_ROMAN (1 << 4)
#define FXFONT_FF_SCRIPT (4 << 4)
#define FXFONT_FW_NORMAL 400
#define FXFONT_FW_BOLD 700
#define CHARSET_FLAG_ANSI 1
#define CHARSET_FLAG_SYMBOL 2
#define CHARSET_FLAG_SHIFTJIS 4
#define CHARSET_FLAG_BIG5 8
#define CHARSET_FLAG_GB 16
#define CHARSET_FLAG_KOREAN 32
#define GET_TT_SHORT(w) (uint16_t)(((w)[0] << 8) | (w)[1])
#define GET_TT_LONG(w) \
(uint32_t)(((w)[0] << 24) | ((w)[1] << 16) | ((w)[2] << 8) | (w)[3])
// Sets the given transform on the font, and resets it to the identity when it
// goes out of scope.
class ScopedFontTransform {
public:
ScopedFontTransform(FT_Face face, FXFT_Matrix* matrix);
~ScopedFontTransform();
private:
FT_Face m_Face;
};
class CFX_Font {
public:
CFX_Font();
~CFX_Font();
void LoadSubst(const CFX_ByteString& face_name,
FX_BOOL bTrueType,
uint32_t flags,
int weight,
int italic_angle,
int CharsetCP,
FX_BOOL bVertical = FALSE);
FX_BOOL LoadEmbedded(const uint8_t* data, uint32_t size);
FXFT_Face GetFace() const { return m_Face; }
CFX_SubstFont* GetSubstFont() const { return m_pSubstFont.get(); }
#ifdef PDF_ENABLE_XFA
FX_BOOL LoadFile(IFX_FileRead* pFile,
int nFaceIndex = 0,
int* pFaceCount = nullptr);
FX_BOOL LoadClone(const CFX_Font* pFont);
void SetFace(FXFT_Face face) { m_Face = face; }
void SetSubstFont(std::unique_ptr<CFX_SubstFont> subst) {
m_pSubstFont = std::move(subst);
}
#endif // PDF_ENABLE_XFA
CFX_PathData* LoadGlyphPath(uint32_t glyph_index, int dest_width = 0);
int GetGlyphWidth(uint32_t glyph_index);
int GetAscent() const;
int GetDescent() const;
FX_BOOL GetGlyphBBox(uint32_t glyph_index, FX_RECT& bbox);
bool IsItalic() const;
bool IsBold() const;
bool IsFixedWidth() const;
FX_BOOL IsVertical() const { return m_bVertical; }
CFX_ByteString GetPsName() const;
CFX_ByteString GetFamilyName() const;
CFX_ByteString GetFaceName() const;
FX_BOOL IsTTFont() const;
FX_BOOL GetBBox(FX_RECT& bbox);
int GetHeight() const;
int GetULPos() const;
int GetULthickness() const;
int GetMaxAdvanceWidth() const;
FX_BOOL IsEmbedded() const { return m_bEmbedded; }
uint8_t* GetSubData() const { return m_pGsubData; }
void SetSubData(uint8_t* data) { m_pGsubData = data; }
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
void* GetPlatformFont() const { return m_pPlatformFont; }
void SetPlatformFont(void* font) { m_pPlatformFont = font; }
#endif
uint8_t* GetFontData() const { return m_pFontData; }
uint32_t GetSize() const { return m_dwSize; }
void AdjustMMParams(int glyph_index, int width, int weight);
static const size_t kAngleSkewArraySize = 30;
static const char s_AngleSkew[kAngleSkewArraySize];
static const size_t kWeightPowArraySize = 100;
static const uint8_t s_WeightPow[kWeightPowArraySize];
static const uint8_t s_WeightPow_11[kWeightPowArraySize];
static const uint8_t s_WeightPow_SHIFTJIS[kWeightPowArraySize];
#ifdef PDF_ENABLE_XFA
protected:
CFX_BinaryBuf m_OtfFontData;
bool m_bShallowCopy;
FXFT_StreamRec* m_pOwnedStream;
#endif // PDF_ENABLE_XFA
private:
void ReleasePlatformResource();
void DeleteFace();
FXFT_Face m_Face;
std::unique_ptr<CFX_SubstFont> m_pSubstFont;
std::vector<uint8_t> m_pFontDataAllocation;
uint8_t* m_pFontData;
uint8_t* m_pGsubData;
uint32_t m_dwSize;
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
void* m_pPlatformFont;
#endif
FX_BOOL m_bEmbedded;
FX_BOOL m_bVertical;
};
class CFX_FontFaceInfo {
public:
CFX_FontFaceInfo(CFX_ByteString filePath,
CFX_ByteString faceName,
CFX_ByteString fontTables,
uint32_t fontOffset,
uint32_t fileSize);
const CFX_ByteString m_FilePath;
const CFX_ByteString m_FaceName;
const CFX_ByteString m_FontTables;
const uint32_t m_FontOffset;
const uint32_t m_FileSize;
uint32_t m_Styles;
uint32_t m_Charsets;
};
class CFX_CountedFaceCache {
public:
CFX_FaceCache* m_Obj;
uint32_t m_nCount;
};
class CFX_GlyphBitmap {
public:
int m_Top;
int m_Left;
CFX_DIBitmap m_Bitmap;
};
struct FXTEXT_GLYPHPOS {
const CFX_GlyphBitmap* m_pGlyph;
int m_OriginX;
int m_OriginY;
FX_FLOAT m_fOriginX;
FX_FLOAT m_fOriginY;
};
FX_RECT FXGE_GetGlyphsBBox(const std::vector<FXTEXT_GLYPHPOS>& glyphs,
int anti_alias,
FX_FLOAT retinaScaleX = 1.0f,
FX_FLOAT retinaScaleY = 1.0f);
CFX_ByteString GetNameFromTT(const uint8_t* name_table,
uint32_t name_table_size,
uint32_t name);
int PDF_GetStandardFontName(CFX_ByteString* name);
#endif // CORE_FXGE_INCLUDE_FX_FONT_H_
|
