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1 /* | 1 /* |
2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) |
3 * Copyright (C) 2003, 2004, 2006, 2007, 2009, 2010 Apple Inc. | 3 * Copyright (C) 2003, 2004, 2006, 2007, 2009, 2010 Apple Inc. |
4 * All right reserved. | 4 * All right reserved. |
5 * | 5 * |
6 * This library is free software; you can redistribute it and/or | 6 * This library is free software; you can redistribute it and/or |
7 * modify it under the terms of the GNU Library General Public | 7 * modify it under the terms of the GNU Library General Public |
8 * License as published by the Free Software Foundation; either | 8 * License as published by the Free Software Foundation; either |
9 * version 2 of the License, or (at your option) any later version. | 9 * version 2 of the License, or (at your option) any later version. |
10 * | 10 * |
11 * This library is distributed in the hope that it will be useful, | 11 * This library is distributed in the hope that it will be useful, |
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 * Library General Public License for more details. | 14 * Library General Public License for more details. |
15 * | 15 * |
16 * You should have received a copy of the GNU Library General Public License | 16 * You should have received a copy of the GNU Library General Public License |
17 * along with this library; see the file COPYING.LIB. If not, write to | 17 * along with this library; see the file COPYING.LIB. If not, write to |
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
19 * Boston, MA 02110-1301, USA. | 19 * Boston, MA 02110-1301, USA. |
20 * | 20 * |
21 */ | 21 */ |
22 | 22 |
23 #ifndef BidiContext_h | 23 #ifndef BidiContext_h |
24 #define BidiContext_h | 24 #define BidiContext_h |
25 | 25 |
26 #include "platform/PlatformExport.h" | 26 #include "platform/PlatformExport.h" |
27 #include "wtf/Assertions.h" | 27 #include "platform/wtf/Assertions.h" |
28 #include "wtf/PassRefPtr.h" | 28 #include "platform/wtf/PassRefPtr.h" |
29 #include "wtf/RefCounted.h" | 29 #include "platform/wtf/RefCounted.h" |
30 #include "wtf/RefPtr.h" | 30 #include "platform/wtf/RefPtr.h" |
31 #include "wtf/text/Unicode.h" | 31 #include "platform/wtf/text/Unicode.h" |
32 | 32 |
33 namespace blink { | 33 namespace blink { |
34 | 34 |
35 enum BidiEmbeddingSource { FromStyleOrDOM, FromUnicode }; | 35 enum BidiEmbeddingSource { FromStyleOrDOM, FromUnicode }; |
36 | 36 |
37 // Used to keep track of explicit embeddings. | 37 // Used to keep track of explicit embeddings. |
38 class PLATFORM_EXPORT BidiContext : public RefCounted<BidiContext> { | 38 class PLATFORM_EXPORT BidiContext : public RefCounted<BidiContext> { |
39 public: | 39 public: |
40 static PassRefPtr<BidiContext> create(unsigned char level, | 40 static PassRefPtr<BidiContext> create(unsigned char level, |
41 WTF::Unicode::CharDirection, | 41 WTF::Unicode::CharDirection, |
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95 | 95 |
96 inline unsigned char nextGreaterEvenLevel(unsigned char level) { | 96 inline unsigned char nextGreaterEvenLevel(unsigned char level) { |
97 return (level + 2) & ~1; | 97 return (level + 2) & ~1; |
98 } | 98 } |
99 | 99 |
100 PLATFORM_EXPORT bool operator==(const BidiContext&, const BidiContext&); | 100 PLATFORM_EXPORT bool operator==(const BidiContext&, const BidiContext&); |
101 | 101 |
102 } // namespace blink | 102 } // namespace blink |
103 | 103 |
104 #endif // BidiContext_h | 104 #endif // BidiContext_h |
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