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 #ifndef CORE_FXCRT_FX_UCD_H_
8 #define CORE_FXCRT_FX_UCD_H_
9
10 #include "core/fxcrt/cfx_retain_ptr.h"
11 #include "core/fxcrt/fx_basic.h"
12
13 #define FX_BIDICLASSBITS 6
14 #define FX_BIDICLASSBITSMASK (31 << FX_BIDICLASSBITS)
15
16 enum FX_BIDICLASS {
17 FX_BIDICLASS_ON = 0, // Other Neutral
18 FX_BIDICLASS_L = 1, // Left Letter
19 FX_BIDICLASS_R = 2, // Right Letter
20 FX_BIDICLASS_AN = 3, // Arabic Number
21 FX_BIDICLASS_EN = 4, // European Number
22 FX_BIDICLASS_AL = 5, // Arabic Letter
23 FX_BIDICLASS_NSM = 6, // Non-spacing Mark
24 FX_BIDICLASS_CS = 7, // Common Number Separator
25 FX_BIDICLASS_ES = 8, // European Separator
26 FX_BIDICLASS_ET = 9, // European Number Terminator
27 FX_BIDICLASS_BN = 10, // Boundary Neutral
28 FX_BIDICLASS_S = 11, // Segment Separator
29 FX_BIDICLASS_WS = 12, // Whitespace
30 FX_BIDICLASS_B = 13, // Paragraph Separator
31 FX_BIDICLASS_RLO = 14, // Right-to-Left Override
32 FX_BIDICLASS_RLE = 15, // Right-to-Left Embedding
33 FX_BIDICLASS_LRO = 16, // Left-to-Right Override
34 FX_BIDICLASS_LRE = 17, // Left-to-Right Embedding
35 FX_BIDICLASS_PDF = 18, // Pop Directional Format
36 FX_BIDICLASS_N = FX_BIDICLASS_ON,
37 };
38
39 extern const uint32_t kTextLayoutCodeProperties[];
40 extern const size_t kTextLayoutCodePropertiesSize;
41
42 extern const uint16_t kFXTextLayoutVerticalMirror[];
43 extern const size_t kFXTextLayoutVerticalMirrorSize;
44
45 extern const uint16_t kFXTextLayoutBidiMirror[];
46 extern const size_t kFXTextLayoutBidiMirrorSize;
47
48 uint32_t FX_GetUnicodeProperties(FX_WCHAR wch);
49 FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch, bool bRTL, bool bVertical);
50
51 #ifdef PDF_ENABLE_XFA
52 enum FX_CHARBREAKPROP {
53 FX_CBP_OP = 0,
54 FX_CBP_CL = 1,
55 FX_CBP_QU = 2,
56 FX_CBP_GL = 3,
57 FX_CBP_NS = 4,
58 FX_CBP_EX = 5,
59 FX_CBP_SY = 6,
60 FX_CBP_IS = 7,
61 FX_CBP_PR = 8,
62 FX_CBP_PO = 9,
63 FX_CBP_NU = 10,
64 FX_CBP_AL = 11,
65 FX_CBP_ID = 12,
66 FX_CBP_IN = 13,
67 FX_CBP_HY = 14,
68 FX_CBP_BA = 15,
69 FX_CBP_BB = 16,
70 FX_CBP_B2 = 17,
71 FX_CBP_ZW = 18,
72 FX_CBP_CM = 19,
73 FX_CBP_WJ = 20,
74 FX_CBP_H2 = 21,
75 FX_CBP_H3 = 22,
76 FX_CBP_JL = 23,
77 FX_CBP_JV = 24,
78 FX_CBP_JT = 25,
79
80 FX_CBP_BK = 26,
81 FX_CBP_CR = 27,
82 FX_CBP_LF = 28,
83 FX_CBP_NL = 29,
84 FX_CBP_SA = 30,
85 FX_CBP_SG = 31,
86 FX_CBP_CB = 32,
87 FX_CBP_XX = 33,
88 FX_CBP_AI = 34,
89 FX_CBP_SP = 35,
90 FX_CBP_TB = 37,
91 FX_CBP_NONE = 36,
92 };
93
94 #define FX_CHARTYPEBITS 11
95 #define FX_CHARTYPEBITSMASK (15 << FX_CHARTYPEBITS)
96 enum FX_CHARTYPE {
97 FX_CHARTYPE_Unknown = 0,
98 FX_CHARTYPE_Tab = (1 << FX_CHARTYPEBITS),
99 FX_CHARTYPE_Space = (2 << FX_CHARTYPEBITS),
100 FX_CHARTYPE_Control = (3 << FX_CHARTYPEBITS),
101 FX_CHARTYPE_Combination = (4 << FX_CHARTYPEBITS),
102 FX_CHARTYPE_Numeric = (5 << FX_CHARTYPEBITS),
103 FX_CHARTYPE_Normal = (6 << FX_CHARTYPEBITS),
104 FX_CHARTYPE_ArabicAlef = (7 << FX_CHARTYPEBITS),
105 FX_CHARTYPE_ArabicSpecial = (8 << FX_CHARTYPEBITS),
106 FX_CHARTYPE_ArabicDistortion = (9 << FX_CHARTYPEBITS),
107 FX_CHARTYPE_ArabicNormal = (10 << FX_CHARTYPEBITS),
108 FX_CHARTYPE_ArabicForm = (11 << FX_CHARTYPEBITS),
109 FX_CHARTYPE_Arabic = (12 << FX_CHARTYPEBITS),
110 };
GetCharTypeFromProp(uint32_t prop)111 inline FX_CHARTYPE GetCharTypeFromProp(uint32_t prop) {
112 return static_cast<FX_CHARTYPE>(prop & FX_CHARTYPEBITSMASK);
113 }
114
115 bool FX_IsCtrlCode(FX_WCHAR ch);
116 FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch,
117 uint32_t dwProps,
118 bool bRTL,
119 bool bVertical);
120 class CFX_Char {
121 public:
CFX_Char()122 CFX_Char()
123 : m_wCharCode(0),
124 m_nBreakType(0),
125 m_dwCharProps(0),
126 m_iCharWidth(0),
127 m_iHorizontalScale(100),
128 m_iVerticalScale(100) {}
129
CFX_Char(uint16_t wCharCode,uint32_t dwCharProps)130 CFX_Char(uint16_t wCharCode, uint32_t dwCharProps)
131 : m_wCharCode(wCharCode),
132 m_nBreakType(0),
133 m_dwCharProps(dwCharProps),
134 m_iCharWidth(0),
135 m_iHorizontalScale(100),
136 m_iVerticalScale(100) {}
137
GetCharType()138 FX_CHARTYPE GetCharType() const { return GetCharTypeFromProp(m_dwCharProps); }
139
140 uint16_t m_wCharCode;
141 uint8_t m_nBreakType;
142 uint32_t m_dwCharProps;
143 int32_t m_iCharWidth;
144 int32_t m_iHorizontalScale;
145 int32_t m_iVerticalScale;
146 };
147
148 class CFX_TxtChar : public CFX_Char {
149 public:
CFX_TxtChar()150 CFX_TxtChar()
151 : m_nRotation(0),
152 m_dwCharStyles(0),
153 m_dwStatus(0),
154 m_iBidiClass(0),
155 m_iBidiLevel(0),
156 m_iBidiPos(0),
157 m_iBidiOrder(0),
158 m_pUserData(nullptr) {}
159
160 int8_t m_nRotation;
161 uint32_t m_dwCharStyles;
162 uint32_t m_dwStatus;
163 int16_t m_iBidiClass;
164 int16_t m_iBidiLevel;
165 int16_t m_iBidiPos;
166 int16_t m_iBidiOrder;
167 void* m_pUserData;
168 };
169
170 enum class CFX_RTFBreakType { None = 0, Piece, Line, Paragraph, Page };
171
172 class CFX_RTFChar : public CFX_Char {
173 public:
174 CFX_RTFChar();
175 CFX_RTFChar(const CFX_RTFChar& other);
176 ~CFX_RTFChar();
177
178 CFX_RTFBreakType m_dwStatus;
179 int32_t m_iFontSize;
180 int32_t m_iFontHeight;
181 int16_t m_iBidiClass;
182 int16_t m_iBidiLevel;
183 int16_t m_iBidiPos;
184 int16_t m_iBidiOrder;
185 uint32_t m_dwIdentity;
186 CFX_RetainPtr<CFX_Retainable> m_pUserData;
187 };
188
CFX_RTFChar()189 inline CFX_RTFChar::CFX_RTFChar()
190 : m_dwStatus(CFX_RTFBreakType::None),
191 m_iFontSize(0),
192 m_iFontHeight(0),
193 m_iBidiClass(0),
194 m_iBidiLevel(0),
195 m_iBidiPos(0),
196 m_dwIdentity(0),
197 m_pUserData(nullptr) {}
198
199 inline CFX_RTFChar::CFX_RTFChar(const CFX_RTFChar& other) = default;
200 inline CFX_RTFChar::~CFX_RTFChar() = default;
201
202 #endif // PDF_ENABLE_XFA
203
204 #endif // CORE_FXCRT_FX_UCD_H_
205