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// 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_
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