| // 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_INCLUDE_FXCRT_FX_ARB_H_ |
| #define CORE_INCLUDE_FXCRT_FX_ARB_H_ |
| |
| #include "core/include/fxcrt/fx_system.h" |
| #include "core/include/fxcrt/fx_ucd.h" |
| |
| class IFX_ArabicChar; |
| |
| struct FX_ARBFORMTABLE { |
| FX_WCHAR wIsolated; |
| FX_WCHAR wFinal; |
| FX_WCHAR wInitial; |
| FX_WCHAR wMedial; |
| }; |
| |
| struct FX_ARAALEF { |
| FX_WCHAR wAlef; |
| FX_WCHAR wIsolated; |
| }; |
| |
| struct FX_ARASHADDA { |
| FX_WCHAR wShadda; |
| FX_WCHAR wIsolated; |
| }; |
| |
| const FX_ARBFORMTABLE* FX_GetArabicFormTable(FX_WCHAR unicode); |
| FX_WCHAR FX_GetArabicFromAlefTable(FX_WCHAR alef); |
| FX_WCHAR FX_GetArabicFromShaddaTable(FX_WCHAR shadda); |
| |
| enum FX_ARBPOSITION { |
| FX_ARBPOSITION_Isolated = 0, |
| FX_ARBPOSITION_Final, |
| FX_ARBPOSITION_Initial, |
| FX_ARBPOSITION_Medial, |
| }; |
| |
| class IFX_ArabicChar { |
| public: |
| static IFX_ArabicChar* Create(); |
| virtual ~IFX_ArabicChar() {} |
| virtual void Release() = 0; |
| virtual FX_BOOL IsArabicChar(FX_WCHAR wch) const = 0; |
| virtual FX_BOOL IsArabicFormChar(FX_WCHAR wch) const = 0; |
| virtual FX_WCHAR GetFormChar(FX_WCHAR wch, |
| FX_WCHAR prev = 0, |
| FX_WCHAR next = 0) const = 0; |
| virtual FX_WCHAR GetFormChar(const CFX_Char* cur, |
| const CFX_Char* prev, |
| const CFX_Char* next) const = 0; |
| }; |
| |
| void FX_BidiLine(CFX_WideString& wsText, int32_t iBaseLevel = 0); |
| void FX_BidiLine(CFX_TxtCharArray& chars, |
| int32_t iCount, |
| int32_t iBaseLevel = 0); |
| void FX_BidiLine(CFX_RTFCharArray& chars, |
| int32_t iCount, |
| int32_t iBaseLevel = 0); |
| |
| #endif // CORE_INCLUDE_FXCRT_FX_ARB_H_ |