| // 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 _FX_ARABIC_IMP |
| #define _FX_ARABIC_IMP |
| typedef struct _FX_ARABICCHARRANGE { |
| FX_WCHAR wStart; |
| FX_WCHAR wEnd; |
| } FX_ARABICCHARRANGE; |
| class CFX_ArabicChar : public IFX_ArabicChar, public CFX_Object |
| { |
| public: |
| virtual void Release() |
| { |
| delete this; |
| } |
| virtual FX_BOOL IsArabicChar(FX_WCHAR wch) const; |
| virtual FX_BOOL IsArabicFormChar(FX_WCHAR wch) const; |
| |
| virtual FX_WCHAR GetFormChar(FX_WCHAR wch, FX_WCHAR prev = 0, FX_WCHAR next = 0) const; |
| virtual FX_WCHAR GetFormChar(const CFX_Char *cur, const CFX_Char *prev, const CFX_Char *next) const; |
| protected: |
| FX_LPCARBFORMTABLE ParseChar(const CFX_Char *pTC, FX_WCHAR &wChar, FX_CHARTYPE &eType) const; |
| }; |
| void FX_BidiReverseString(CFX_WideString &wsText, FX_INT32 iStart, FX_INT32 iCount); |
| void FX_BidiSetDeferredRun(CFX_Int32Array &values, FX_INT32 iStart, FX_INT32 iCount, FX_INT32 iValue); |
| #define FX_BCON FX_BIDICLASS_ON |
| #define FX_BCL FX_BIDICLASS_L |
| #define FX_BCR FX_BIDICLASS_R |
| #define FX_BCAN FX_BIDICLASS_AN |
| #define FX_BCEN FX_BIDICLASS_EN |
| #define FX_BCAL FX_BIDICLASS_AL |
| #define FX_BCNSM FX_BIDICLASS_NSM |
| #define FX_BCCS FX_BIDICLASS_CS |
| #define FX_BCES FX_BIDICLASS_ES |
| #define FX_BCET FX_BIDICLASS_ET |
| #define FX_BCBN FX_BIDICLASS_BN |
| #define FX_BCS FX_BIDICLASS_S |
| #define FX_BCWS FX_BIDICLASS_WS |
| #define FX_BCB FX_BIDICLASS_B |
| #define FX_BCRLO FX_BIDICLASS_RLO |
| #define FX_BCRLE FX_BIDICLASS_RLE |
| #define FX_BCLRO FX_BIDICLASS_LRO |
| #define FX_BCLRE FX_BIDICLASS_LRE |
| #define FX_BCPDF FX_BIDICLASS_PDF |
| #define FX_BCN FX_BIDICLASS_N |
| void FX_BidiClassify(const CFX_WideString &wsText, CFX_Int32Array &classes, FX_BOOL bWS = FALSE); |
| #define FX_BIDIMAXLEVEL 61 |
| #define FX_BidiGreaterEven(a) (FX_IsOdd(a) ? ((a) + 1) : ((a) + 2)) |
| #define FX_BidiGreaterOdd(a) (FX_IsOdd(a) ? ((a) + 2) : ((a) + 1)) |
| FX_INT32 FX_BidiResolveExplicit(FX_INT32 iBaseLevel, FX_INT32 iDirection, CFX_Int32Array &classes, CFX_Int32Array &levels, FX_INT32 iStart, FX_INT32 iCount, FX_INT32 iNest = 0); |
| #define FX_BidiDirection(a) (FX_IsOdd(a) ? FX_BIDICLASS_R : FX_BIDICLASS_L) |
| enum FX_BIDIWEAKSTATE { |
| FX_BIDIWEAKSTATE_xa = 0, |
| FX_BIDIWEAKSTATE_xr, |
| FX_BIDIWEAKSTATE_xl, |
| FX_BIDIWEAKSTATE_ao, |
| FX_BIDIWEAKSTATE_ro, |
| FX_BIDIWEAKSTATE_lo, |
| FX_BIDIWEAKSTATE_rt, |
| FX_BIDIWEAKSTATE_lt, |
| FX_BIDIWEAKSTATE_cn, |
| FX_BIDIWEAKSTATE_ra, |
| FX_BIDIWEAKSTATE_re, |
| FX_BIDIWEAKSTATE_la, |
| FX_BIDIWEAKSTATE_le, |
| FX_BIDIWEAKSTATE_ac, |
| FX_BIDIWEAKSTATE_rc, |
| FX_BIDIWEAKSTATE_rs, |
| FX_BIDIWEAKSTATE_lc, |
| FX_BIDIWEAKSTATE_ls, |
| FX_BIDIWEAKSTATE_ret, |
| FX_BIDIWEAKSTATE_let, |
| }; |
| #define FX_BWSxa FX_BIDIWEAKSTATE_xa |
| #define FX_BWSxr FX_BIDIWEAKSTATE_xr |
| #define FX_BWSxl FX_BIDIWEAKSTATE_xl |
| #define FX_BWSao FX_BIDIWEAKSTATE_ao |
| #define FX_BWSro FX_BIDIWEAKSTATE_ro |
| #define FX_BWSlo FX_BIDIWEAKSTATE_lo |
| #define FX_BWSrt FX_BIDIWEAKSTATE_rt |
| #define FX_BWSlt FX_BIDIWEAKSTATE_lt |
| #define FX_BWScn FX_BIDIWEAKSTATE_cn |
| #define FX_BWSra FX_BIDIWEAKSTATE_ra |
| #define FX_BWSre FX_BIDIWEAKSTATE_re |
| #define FX_BWSla FX_BIDIWEAKSTATE_la |
| #define FX_BWSle FX_BIDIWEAKSTATE_le |
| #define FX_BWSac FX_BIDIWEAKSTATE_ac |
| #define FX_BWSrc FX_BIDIWEAKSTATE_rc |
| #define FX_BWSrs FX_BIDIWEAKSTATE_rs |
| #define FX_BWSlc FX_BIDIWEAKSTATE_lc |
| #define FX_BWSls FX_BIDIWEAKSTATE_ls |
| #define FX_BWSret FX_BIDIWEAKSTATE_ret |
| #define FX_BWSlet FX_BIDIWEAKSTATE_let |
| enum FX_BIDIWEAKACTION { |
| FX_BIDIWEAKACTION_IX = 0x100, |
| FX_BIDIWEAKACTION_XX = 0x0F, |
| FX_BIDIWEAKACTION_xxx = (0x0F << 4) + 0x0F, |
| FX_BIDIWEAKACTION_xIx = 0x100 + FX_BIDIWEAKACTION_xxx, |
| FX_BIDIWEAKACTION_xxN = (0x0F << 4) + FX_BIDICLASS_ON, |
| FX_BIDIWEAKACTION_xxE = (0x0F << 4) + FX_BIDICLASS_EN, |
| FX_BIDIWEAKACTION_xxA = (0x0F << 4) + FX_BIDICLASS_AN, |
| FX_BIDIWEAKACTION_xxR = (0x0F << 4) + FX_BIDICLASS_R, |
| FX_BIDIWEAKACTION_xxL = (0x0F << 4) + FX_BIDICLASS_L, |
| FX_BIDIWEAKACTION_Nxx = (FX_BIDICLASS_ON << 4) + 0x0F, |
| FX_BIDIWEAKACTION_Axx = (FX_BIDICLASS_AN << 4) + 0x0F, |
| FX_BIDIWEAKACTION_ExE = (FX_BIDICLASS_EN << 4) + FX_BIDICLASS_EN, |
| FX_BIDIWEAKACTION_NIx = (FX_BIDICLASS_ON << 4) + 0x0F + 0x100, |
| FX_BIDIWEAKACTION_NxN = (FX_BIDICLASS_ON << 4) + FX_BIDICLASS_ON, |
| FX_BIDIWEAKACTION_NxR = (FX_BIDICLASS_ON << 4) + FX_BIDICLASS_R, |
| FX_BIDIWEAKACTION_NxE = (FX_BIDICLASS_ON << 4) + FX_BIDICLASS_EN, |
| FX_BIDIWEAKACTION_AxA = (FX_BIDICLASS_AN << 4) + FX_BIDICLASS_AN, |
| FX_BIDIWEAKACTION_NxL = (FX_BIDICLASS_ON << 4) + FX_BIDICLASS_L, |
| FX_BIDIWEAKACTION_LxL = (FX_BIDICLASS_L << 4) + FX_BIDICLASS_L, |
| FX_BIDIWEAKACTION_xIL = (0x0F << 4) + FX_BIDICLASS_L + 0x100, |
| FX_BIDIWEAKACTION_AxR = (FX_BIDICLASS_AN << 4) + FX_BIDICLASS_R, |
| FX_BIDIWEAKACTION_Lxx = (FX_BIDICLASS_L << 4) + 0x0F, |
| }; |
| #define FX_BWAIX FX_BIDIWEAKACTION_IX |
| #define FX_BWAXX FX_BIDIWEAKACTION_XX |
| #define FX_BWAxxx FX_BIDIWEAKACTION_xxx |
| #define FX_BWAxIx FX_BIDIWEAKACTION_xIx |
| #define FX_BWAxxN FX_BIDIWEAKACTION_xxN |
| #define FX_BWAxxE FX_BIDIWEAKACTION_xxE |
| #define FX_BWAxxA FX_BIDIWEAKACTION_xxA |
| #define FX_BWAxxR FX_BIDIWEAKACTION_xxR |
| #define FX_BWAxxL FX_BIDIWEAKACTION_xxL |
| #define FX_BWANxx FX_BIDIWEAKACTION_Nxx |
| #define FX_BWAAxx FX_BIDIWEAKACTION_Axx |
| #define FX_BWAExE FX_BIDIWEAKACTION_ExE |
| #define FX_BWANIx FX_BIDIWEAKACTION_NIx |
| #define FX_BWANxN FX_BIDIWEAKACTION_NxN |
| #define FX_BWANxR FX_BIDIWEAKACTION_NxR |
| #define FX_BWANxE FX_BIDIWEAKACTION_NxE |
| #define FX_BWAAxA FX_BIDIWEAKACTION_AxA |
| #define FX_BWANxL FX_BIDIWEAKACTION_NxL |
| #define FX_BWALxL FX_BIDIWEAKACTION_LxL |
| #define FX_BWAxIL FX_BIDIWEAKACTION_xIL |
| #define FX_BWAAxR FX_BIDIWEAKACTION_AxR |
| #define FX_BWALxx FX_BIDIWEAKACTION_Lxx |
| #define FX_BidiGetDeferredType(a) (((a) >> 4) & 0x0F) |
| #define FX_BidiGetResolvedType(a) ((a) & 0x0F) |
| void FX_BidiResolveWeak(FX_INT32 iBaseLevel, CFX_Int32Array &classes, CFX_Int32Array &levels); |
| enum FX_BIDINEUTRALSTATE { |
| FX_BIDINEUTRALSTATE_r = 0, |
| FX_BIDINEUTRALSTATE_l, |
| FX_BIDINEUTRALSTATE_rn, |
| FX_BIDINEUTRALSTATE_ln, |
| FX_BIDINEUTRALSTATE_a, |
| FX_BIDINEUTRALSTATE_na, |
| }; |
| #define FX_BNSr FX_BIDINEUTRALSTATE_r |
| #define FX_BNSl FX_BIDINEUTRALSTATE_l |
| #define FX_BNSrn FX_BIDINEUTRALSTATE_rn |
| #define FX_BNSln FX_BIDINEUTRALSTATE_ln |
| #define FX_BNSa FX_BIDINEUTRALSTATE_a |
| #define FX_BNSna FX_BIDINEUTRALSTATE_na |
| enum FX_BIDINEUTRALACTION { |
| FX_BIDINEUTRALACTION_nL = FX_BIDICLASS_L, |
| FX_BIDINEUTRALACTION_En = (FX_BIDICLASS_AN << 4), |
| FX_BIDINEUTRALACTION_Rn = (FX_BIDICLASS_R << 4), |
| FX_BIDINEUTRALACTION_Ln = (FX_BIDICLASS_L << 4), |
| FX_BIDINEUTRALACTION_In = FX_BIDIWEAKACTION_IX, |
| FX_BIDINEUTRALACTION_LnL = (FX_BIDICLASS_L << 4) + FX_BIDICLASS_L, |
| }; |
| #define FX_BNAnL FX_BIDINEUTRALACTION_nL |
| #define FX_BNAEn FX_BIDINEUTRALACTION_En |
| #define FX_BNARn FX_BIDINEUTRALACTION_Rn |
| #define FX_BNALn FX_BIDINEUTRALACTION_Ln |
| #define FX_BNAIn FX_BIDINEUTRALACTION_In |
| #define FX_BNALnL FX_BIDINEUTRALACTION_LnL |
| FX_INT32 FX_BidiGetDeferredNeutrals(FX_INT32 iAction, FX_INT32 iLevel); |
| FX_INT32 FX_BidiGetResolvedNeutrals(FX_INT32 iAction); |
| void FX_BidiResolveNeutrals(FX_INT32 iBaseLevel, CFX_Int32Array &classes, const CFX_Int32Array &levels); |
| void FX_BidiResolveImplicit(const CFX_Int32Array &classes, CFX_Int32Array &levels); |
| void FX_BidiResolveWhitespace(FX_INT32 iBaseLevel, const CFX_Int32Array &classes, CFX_Int32Array &levels); |
| FX_INT32 FX_BidiReorderLevel(FX_INT32 iBaseLevel, CFX_WideString &wsText, const CFX_Int32Array &levels, FX_INT32 iStart, FX_BOOL bReverse = FALSE); |
| void FX_BidiReorder(FX_INT32 iBaseLevel, CFX_WideString &wsText, const CFX_Int32Array &levels); |
| class CFX_BidiChar : public IFX_BidiChar, public CFX_Object |
| { |
| public: |
| CFX_BidiChar(); |
| virtual void Release() FX_OVERRIDE |
| { |
| delete this; |
| } |
| virtual void SetPolicy(FX_BOOL bSeparateNeutral = TRUE) FX_OVERRIDE |
| { |
| m_bSeparateNeutral = bSeparateNeutral; |
| } |
| virtual FX_BOOL AppendChar(FX_WCHAR wch) FX_OVERRIDE; |
| virtual FX_BOOL EndChar() FX_OVERRIDE; |
| virtual FX_INT32 GetBidiInfo(FX_INT32 &iStart, FX_INT32 &iCount) FX_OVERRIDE; |
| virtual void Reset() FX_OVERRIDE; |
| protected: |
| FX_BOOL m_bSeparateNeutral; |
| FX_INT32 m_iCurStart; |
| FX_INT32 m_iCurCount; |
| FX_INT32 m_iCurBidi; |
| FX_INT32 m_iLastBidi; |
| FX_INT32 m_iLastStart; |
| FX_INT32 m_iLastCount; |
| }; |
| #endif |
