Line data Source code
1 : /*
2 : *******************************************************************************
3 : *
4 : * Copyright (c) 1995-2013 International Business Machines Corporation and others
5 : *
6 : * All rights reserved.
7 : *
8 : * Permission is hereby granted, free of charge, to any person obtaining a copy of
9 : * this software and associated documentation files (the "Software"), to deal in
10 : * the Software without restriction, including without limitation the rights to
11 : * use, copy, modify, merge, publish, distribute, and/or sell copies of the
12 : * Software, and to permit persons to whom the Software is furnished to do so,
13 : * provided that the above copyright notice(s) and this permission notice appear
14 : * in all copies of the Software and that both the above copyright notice(s) and
15 : * this permission notice appear in supporting documentation.
16 : *
17 : * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 : * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 : * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN
20 : * NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE
21 : * LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY
22 : * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
23 : * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
24 : * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 : *
26 : * Except as contained in this notice, the name of a copyright holder shall not be
27 : * used in advertising or otherwise to promote the sale, use or other dealings in
28 : * this Software without prior written authorization of the copyright holder.
29 : *
30 : *******************************************************************************
31 : * file name: scrptrun.h
32 : *
33 : * created on: 10/17/2001
34 : * created by: Eric R. Mader
35 : */
36 :
37 : #ifndef INCLUDED_VCL_GENERIC_GLYPHS_SCRPTRUN_H
38 : #define INCLUDED_VCL_GENERIC_GLYPHS_SCRPTRUN_H
39 :
40 : #include <sal/config.h>
41 :
42 : #include <sal/types.h>
43 : #include "unicode/utypes.h"
44 : #include "unicode/uobject.h"
45 : #include "unicode/uscript.h"
46 : #include <vector>
47 :
48 : namespace vcl {
49 :
50 : struct ScriptRecord
51 : {
52 : UChar32 startChar;
53 : UChar32 endChar;
54 : UScriptCode scriptCode;
55 : };
56 :
57 : struct ParenStackEntry
58 : {
59 : int32_t pairIndex;
60 : UScriptCode scriptCode;
61 193719424 : ParenStackEntry()
62 : : pairIndex(0)
63 193719424 : , scriptCode(USCRIPT_INVALID_CODE)
64 : {
65 193719424 : }
66 : };
67 :
68 1513433 : class ScriptRun : public UObject {
69 : public:
70 : ScriptRun();
71 :
72 : ScriptRun(const UChar chars[], int32_t length);
73 :
74 : ScriptRun(const UChar chars[], int32_t start, int32_t length);
75 :
76 : void reset();
77 :
78 : void reset(int32_t start, int32_t count);
79 :
80 : void reset(const UChar chars[], int32_t start, int32_t length);
81 :
82 : int32_t getScriptStart();
83 :
84 : int32_t getScriptEnd();
85 :
86 : UScriptCode getScriptCode();
87 :
88 : UBool next();
89 :
90 : /**
91 : s * ICU "poor man's RTTI", returns a UClassID for the actual class.
92 : *
93 : * @stable ICU 2.2
94 : */
95 0 : virtual inline UClassID getDynamicClassID() const SAL_OVERRIDE { return getStaticClassID(); }
96 :
97 : /**
98 : * ICU "poor man's RTTI", returns a UClassID for this class.
99 : *
100 : * @stable ICU 2.2
101 : */
102 0 : static inline UClassID getStaticClassID() { return static_cast<UClassID>(const_cast<char *>(&fgClassID)); }
103 :
104 : private:
105 :
106 : int32_t charStart;
107 : int32_t charLimit;
108 : const UChar *charArray;
109 :
110 : int32_t scriptStart;
111 : int32_t scriptEnd;
112 : UScriptCode scriptCode;
113 :
114 : std::vector<ParenStackEntry> parenStack;
115 : int32_t parenSP;
116 :
117 : /**
118 : * The address of this static class variable serves as this class's ID
119 : * for ICU "poor man's RTTI".
120 : */
121 : static const char fgClassID;
122 : };
123 :
124 : inline ScriptRun::ScriptRun()
125 : {
126 : reset(NULL, 0, 0);
127 : }
128 :
129 1513433 : inline ScriptRun::ScriptRun(const UChar chars[], int32_t length)
130 : {
131 1513433 : reset(chars, 0, length);
132 1513433 : }
133 :
134 : inline ScriptRun::ScriptRun(const UChar chars[], int32_t start, int32_t length)
135 : {
136 : reset(chars, start, length);
137 : }
138 :
139 1470263 : inline int32_t ScriptRun::getScriptStart()
140 : {
141 1470263 : return scriptStart;
142 : }
143 :
144 1470263 : inline int32_t ScriptRun::getScriptEnd()
145 : {
146 1470263 : return scriptEnd;
147 : }
148 :
149 1470263 : inline UScriptCode ScriptRun::getScriptCode()
150 : {
151 1470263 : return scriptCode;
152 : }
153 :
154 1513433 : inline void ScriptRun::reset()
155 : {
156 1513433 : scriptStart = charStart;
157 1513433 : scriptEnd = charStart;
158 1513433 : scriptCode = USCRIPT_INVALID_CODE;
159 1513433 : parenSP = -1;
160 1513433 : parenStack.resize(128);
161 1513433 : }
162 :
163 1513433 : inline void ScriptRun::reset(int32_t start, int32_t length)
164 : {
165 1513433 : charStart = start;
166 1513433 : charLimit = start + length;
167 :
168 1513433 : reset();
169 1513433 : }
170 :
171 1513433 : inline void ScriptRun::reset(const UChar chars[], int32_t start, int32_t length)
172 : {
173 1513433 : charArray = chars;
174 :
175 1513433 : reset(start, length);
176 1513433 : }
177 :
178 : }
179 :
180 : #endif
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