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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #ifndef CORE_FXCRT_INCLUDE_FX_ARB_H_ | 7 #ifndef CORE_FXCRT_INCLUDE_FX_ARB_H_ |
8 #define CORE_FXCRT_INCLUDE_FX_ARB_H_ | 8 #define CORE_FXCRT_INCLUDE_FX_ARB_H_ |
9 | 9 |
10 #include "core/fxcrt/include/fx_system.h" | 10 #include "core/fxcrt/include/fx_system.h" |
11 #include "core/fxcrt/include/fx_ucd.h" | 11 #include "core/fxcrt/include/fx_ucd.h" |
12 | 12 |
13 class IFX_ArabicChar; | |
14 | |
15 struct FX_ARBFORMTABLE { | 13 struct FX_ARBFORMTABLE { |
16 uint16_t wIsolated; | 14 uint16_t wIsolated; |
17 uint16_t wFinal; | 15 uint16_t wFinal; |
18 uint16_t wInitial; | 16 uint16_t wInitial; |
19 uint16_t wMedial; | 17 uint16_t wMedial; |
20 }; | 18 }; |
21 | 19 |
22 struct FX_ARAALEF { | 20 struct FX_ARAALEF { |
23 uint16_t wAlef; | 21 uint16_t wAlef; |
24 uint16_t wIsolated; | 22 uint16_t wIsolated; |
25 }; | 23 }; |
26 | 24 |
27 struct FX_ARASHADDA { | 25 struct FX_ARASHADDA { |
28 uint16_t wShadda; | 26 uint16_t wShadda; |
29 uint16_t wIsolated; | 27 uint16_t wIsolated; |
30 }; | 28 }; |
31 | 29 |
32 const FX_ARBFORMTABLE* FX_GetArabicFormTable(FX_WCHAR unicode); | 30 const FX_ARBFORMTABLE* FX_GetArabicFormTable(FX_WCHAR unicode); |
33 FX_WCHAR FX_GetArabicFromAlefTable(FX_WCHAR alef); | 31 FX_WCHAR FX_GetArabicFromAlefTable(FX_WCHAR alef); |
34 FX_WCHAR FX_GetArabicFromShaddaTable(FX_WCHAR shadda); | 32 FX_WCHAR FX_GetArabicFromShaddaTable(FX_WCHAR shadda); |
35 | 33 |
36 enum FX_ARBPOSITION { | 34 enum FX_ARBPOSITION { |
37 FX_ARBPOSITION_Isolated = 0, | 35 FX_ARBPOSITION_Isolated = 0, |
38 FX_ARBPOSITION_Final, | 36 FX_ARBPOSITION_Final, |
39 FX_ARBPOSITION_Initial, | 37 FX_ARBPOSITION_Initial, |
40 FX_ARBPOSITION_Medial, | 38 FX_ARBPOSITION_Medial, |
41 }; | 39 }; |
42 | 40 |
43 class IFX_ArabicChar { | |
44 public: | |
45 static IFX_ArabicChar* Create(); | |
46 virtual ~IFX_ArabicChar() {} | |
47 virtual void Release() = 0; | |
48 virtual FX_BOOL IsArabicChar(FX_WCHAR wch) const = 0; | |
49 virtual FX_BOOL IsArabicFormChar(FX_WCHAR wch) const = 0; | |
50 virtual FX_WCHAR GetFormChar(FX_WCHAR wch, | |
51 FX_WCHAR prev = 0, | |
52 FX_WCHAR next = 0) const = 0; | |
53 virtual FX_WCHAR GetFormChar(const CFX_Char* cur, | |
54 const CFX_Char* prev, | |
55 const CFX_Char* next) const = 0; | |
56 }; | |
57 | |
58 void FX_BidiLine(CFX_WideString& wsText, int32_t iBaseLevel = 0); | 41 void FX_BidiLine(CFX_WideString& wsText, int32_t iBaseLevel = 0); |
59 void FX_BidiLine(CFX_TxtCharArray& chars, | 42 void FX_BidiLine(CFX_TxtCharArray& chars, |
60 int32_t iCount, | 43 int32_t iCount, |
61 int32_t iBaseLevel = 0); | 44 int32_t iBaseLevel = 0); |
62 void FX_BidiLine(CFX_RTFCharArray& chars, | 45 void FX_BidiLine(CFX_RTFCharArray& chars, |
63 int32_t iCount, | 46 int32_t iCount, |
64 int32_t iBaseLevel = 0); | 47 int32_t iBaseLevel = 0); |
65 | 48 |
66 #endif // CORE_FXCRT_INCLUDE_FX_ARB_H_ | 49 #endif // CORE_FXCRT_INCLUDE_FX_ARB_H_ |
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