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authorBo Xu <bo_xu@foxitsoftware.com>2014-10-28 23:03:33 -0700
committerBo Xu <bo_xu@foxitsoftware.com>2014-11-03 11:10:11 -0800
commitfdc00a7042d912aafaabddae4d9c84199921ef23 (patch)
tree32ab8ac91cc68d2cd15b9168782a71b3f3f5e7b9 /core/src/fxcrt/fx_arabic.cpp
parente9b38fa38de2c95d8260be31c57d9272c4d127ed (diff)
downloadpdfium-fdc00a7042d912aafaabddae4d9c84199921ef23.tar.xz
Merge XFA to PDFium master at 4dc95e7 on 10/28/2014
Diffstat (limited to 'core/src/fxcrt/fx_arabic.cpp')
-rw-r--r--core/src/fxcrt/fx_arabic.cpp1078
1 files changed, 1078 insertions, 0 deletions
diff --git a/core/src/fxcrt/fx_arabic.cpp b/core/src/fxcrt/fx_arabic.cpp
index 583ce817cf..dd5d1d81bd 100644
--- a/core/src/fxcrt/fx_arabic.cpp
+++ b/core/src/fxcrt/fx_arabic.cpp
@@ -7,6 +7,1084 @@
#include "../../include/fxcrt/fx_ext.h"
#include "fx_arabic.h"
extern const FX_DWORD gs_FX_TextLayout_CodeProperties[65536];
+#ifdef __cplusplus
+extern "C" {
+#endif
+static const FX_ARBFORMTABLE g_FX_ArabicFormTables[] = {
+ {0xFE81, 0xFE82, 0xFE81, 0xFE82},
+ {0xFE83, 0xFE84, 0xFE83, 0xFE84},
+ {0xFE85, 0xFE86, 0xFE85, 0xFE86},
+ {0xFE87, 0xFE88, 0xFE87, 0xFE88},
+ {0xFE89, 0xFE8A, 0xFE8B, 0xFE8C},
+ {0xFE8D, 0xFE8E, 0xFE8D, 0xFE8E},
+ {0xFE8F, 0xFE90, 0xFE91, 0xFE92},
+ {0xFE93, 0xFE94, 0xFE93, 0xFE94},
+ {0xFE95, 0xFE96, 0xFE97, 0xFE98},
+ {0xFE99, 0xFE9A, 0xFE9B, 0xFE9C},
+ {0xFE9D, 0xFE9E, 0xFE9F, 0xFEA0},
+ {0xFEA1, 0xFEA2, 0xFEA3, 0xFEA4},
+ {0xFEA5, 0xFEA6, 0xFEA7, 0xFEA8},
+ {0xFEA9, 0xFEAA, 0xFEA9, 0xFEAA},
+ {0xFEAB, 0xFEAC, 0xFEAB, 0xFEAC},
+ {0xFEAD, 0xFEAE, 0xFEAD, 0xFEAE},
+ {0xFEAF, 0xFEB0, 0xFEAF, 0xFEB0},
+ {0xFEB1, 0xFEB2, 0xFEB3, 0xFEB4},
+ {0xFEB5, 0xFEB6, 0xFEB7, 0xFEB8},
+ {0xFEB9, 0xFEBA, 0xFEBB, 0xFEBC},
+ {0xFEBD, 0xFEBE, 0xFEBF, 0xFEC0},
+ {0xFEC1, 0xFEC2, 0xFEC3, 0xFEC4},
+ {0xFEC5, 0xFEC6, 0xFEC7, 0xFEC8},
+ {0xFEC9, 0xFECA, 0xFECB, 0xFECC},
+ {0xFECD, 0xFECE, 0xFECF, 0xFED0},
+ {0x063B, 0x063B, 0x063B, 0x063B},
+ {0x063C, 0x063C, 0x063C, 0x063C},
+ {0x063D, 0x063D, 0x063D, 0x063D},
+ {0x063E, 0x063E, 0x063E, 0x063E},
+ {0x063F, 0x063F, 0x063F, 0x063F},
+ {0x0640, 0x0640, 0x0640, 0x0640},
+ {0xFED1, 0xFED2, 0xFED3, 0xFED4},
+ {0xFED5, 0xFED6, 0xFED7, 0xFED8},
+ {0xFED9, 0xFEDA, 0xFEDB, 0xFEDC},
+ {0xFEDD, 0xFEDE, 0xFEDF, 0xFEE0},
+ {0xFEE1, 0xFEE2, 0xFEE3, 0xFEE4},
+ {0xFEE5, 0xFEE6, 0xFEE7, 0xFEE8},
+ {0xFEE9, 0xFEEA, 0xFEEB, 0xFEEC},
+ {0xFEED, 0xFEEE, 0xFEED, 0xFEEE},
+ {0xFEEF, 0xFEF0, 0xFBFE, 0xFBFF},
+ {0xFEF1, 0xFEF2, 0xFEF3, 0xFEF4},
+ {0x064B, 0x064B, 0x064B, 0x064B},
+ {0x064C, 0x064C, 0x064C, 0x064C},
+ {0x064D, 0x064D, 0x064D, 0x064D},
+ {0x064E, 0x064E, 0x064E, 0x064E},
+ {0x064F, 0x064F, 0x064F, 0x064F},
+ {0x0650, 0x0650, 0x0650, 0x0650},
+ {0x0651, 0x0651, 0x0651, 0x0651},
+ {0x0652, 0x0652, 0x0652, 0x0652},
+ {0x0653, 0x0653, 0x0653, 0x0653},
+ {0x0654, 0x0654, 0x0654, 0x0654},
+ {0x0655, 0x0655, 0x0655, 0x0655},
+ {0x0656, 0x0656, 0x0656, 0x0656},
+ {0x0657, 0x0657, 0x0657, 0x0657},
+ {0x0658, 0x0658, 0x0658, 0x0658},
+ {0x0659, 0x0659, 0x0659, 0x0659},
+ {0x065A, 0x065A, 0x065A, 0x065A},
+ {0x065B, 0x065B, 0x065B, 0x065B},
+ {0x065C, 0x065C, 0x065C, 0x065C},
+ {0x065D, 0x065D, 0x065D, 0x065D},
+ {0x065E, 0x065E, 0x065E, 0x065E},
+ {0x065F, 0x065F, 0x065F, 0x065F},
+ {0x0660, 0x0660, 0x0660, 0x0660},
+ {0x0661, 0x0661, 0x0661, 0x0661},
+ {0x0662, 0x0662, 0x0662, 0x0662},
+ {0x0663, 0x0663, 0x0663, 0x0663},
+ {0x0664, 0x0664, 0x0664, 0x0664},
+ {0x0665, 0x0665, 0x0665, 0x0665},
+ {0x0666, 0x0666, 0x0666, 0x0666},
+ {0x0667, 0x0667, 0x0667, 0x0667},
+ {0x0668, 0x0668, 0x0668, 0x0668},
+ {0x0669, 0x0669, 0x0669, 0x0669},
+ {0x066A, 0x066A, 0x066A, 0x066A},
+ {0x066B, 0x066B, 0x066B, 0x066B},
+ {0x066C, 0x066C, 0x066C, 0x066C},
+ {0x066D, 0x066D, 0x066D, 0x066D},
+ {0x066E, 0x066E, 0x066E, 0x066E},
+ {0x066F, 0x066F, 0x066F, 0x066F},
+ {0x0670, 0x0670, 0x0670, 0x0670},
+ {0xFB50, 0xFB51, 0xFB50, 0xFB51},
+ {0x0672, 0x0672, 0x0672, 0x0672},
+ {0x0673, 0x0673, 0x0673, 0x0673},
+ {0x0674, 0x0674, 0x0674, 0x0674},
+ {0x0675, 0x0675, 0x0675, 0x0675},
+ {0x0676, 0x0676, 0x0676, 0x0676},
+ {0x0677, 0x0677, 0x0677, 0x0677},
+ {0x0678, 0x0678, 0x0678, 0x0678},
+ {0xFB66, 0xFB67, 0xFB68, 0xFB69},
+ {0xFB5E, 0xFB5F, 0xFB60, 0xFB61},
+ {0xFB52, 0xFB53, 0xFB54, 0xFB55},
+ {0x067C, 0x067C, 0x067C, 0x067C},
+ {0x067D, 0x067D, 0x067D, 0x067D},
+ {0xFB56, 0xFB57, 0xFB58, 0xFB59},
+ {0xFB62, 0xFB63, 0xFB64, 0xFB65},
+ {0xFB5A, 0xFB5B, 0xFB5C, 0xFB5D},
+ {0x0681, 0x0681, 0x0681, 0x0681},
+ {0x0682, 0x0682, 0x0682, 0x0682},
+ {0xFB76, 0xFB77, 0xFB78, 0xFB79},
+ {0xFB72, 0xFB73, 0xFB74, 0xFB75},
+ {0x0685, 0x0685, 0x0685, 0x0685},
+ {0xFB7A, 0xFB7B, 0xFB7C, 0xFB7D},
+ {0xFB7E, 0xFB7F, 0xFB80, 0xFB81},
+ {0xFB88, 0xFB89, 0xFB88, 0xFB89},
+ {0x0689, 0x0689, 0x0689, 0x0689},
+ {0x068A, 0x068A, 0x068A, 0x068A},
+ {0x068B, 0x068B, 0x068B, 0x068B},
+ {0xFB84, 0xFB85, 0xFB84, 0xFB85},
+ {0xFB82, 0xFB83, 0xFB82, 0xFB83},
+ {0xFB86, 0xFB87, 0xFB86, 0xFB87},
+ {0x068F, 0x068F, 0x068F, 0x068F},
+ {0x0690, 0x0690, 0x0690, 0x0690},
+ {0xFB8C, 0xFB8D, 0xFB8C, 0xFB8D},
+ {0x0692, 0x0692, 0x0692, 0x0692},
+ {0x0693, 0x0693, 0x0693, 0x0693},
+ {0x0694, 0x0694, 0x0694, 0x0694},
+ {0x0695, 0x0695, 0x0695, 0x0695},
+ {0x0696, 0x0696, 0x0696, 0x0696},
+ {0x0697, 0x0697, 0x0697, 0x0697},
+ {0xFB8A, 0xFB8B, 0xFB8A, 0xFB8B},
+ {0x0699, 0x0699, 0x0699, 0x0699},
+ {0x069A, 0x069A, 0x069A, 0x069A},
+ {0x069B, 0x069B, 0x069B, 0x069B},
+ {0x069C, 0x069C, 0x069C, 0x069C},
+ {0x069D, 0x069D, 0x069D, 0x069D},
+ {0x069E, 0x069E, 0x069E, 0x069E},
+ {0x069F, 0x069F, 0x069F, 0x069F},
+ {0x06A0, 0x06A0, 0x06A0, 0x06A0},
+ {0x06A1, 0x06A1, 0x06A1, 0x06A1},
+ {0x06A2, 0x06A2, 0x06A2, 0x06A2},
+ {0x06A3, 0x06A3, 0x06A3, 0x06A3},
+ {0xFB6A, 0xFB6B, 0xFB6C, 0xFB6D},
+ {0x06A5, 0x06A5, 0x06A5, 0x06A5},
+ {0xFB6E, 0xFB6F, 0xFB70, 0xFB71},
+ {0x06A7, 0x06A7, 0x06A7, 0x06A7},
+ {0x06A8, 0x06A8, 0x06A8, 0x06A8},
+ {0xFB8E, 0xFB8F, 0xFB90, 0xFB91},
+ {0x06AA, 0x06AA, 0x06AA, 0x06AA},
+ {0x06AB, 0x06AB, 0x06AB, 0x06AB},
+ {0x06AC, 0x06AC, 0x06AC, 0x06AC},
+ {0xFBD3, 0xFBD4, 0xFBD5, 0xFBD6},
+ {0x06AE, 0x06AE, 0x06AE, 0x06AE},
+ {0xFB92, 0xFB93, 0xFB94, 0xFB95},
+ {0x06B0, 0x06B0, 0x06B0, 0x06B0},
+ {0xFB9A, 0xFB9B, 0xFB9C, 0xFB9D},
+ {0x06B2, 0x06B2, 0x06B2, 0x06B2},
+ {0xFB96, 0xFB97, 0xFB98, 0xFB99},
+ {0x06B4, 0x06B4, 0x06B4, 0x06B4},
+ {0x06B5, 0x06B5, 0x06B5, 0x06B5},
+ {0x06B6, 0x06B6, 0x06B6, 0x06B6},
+ {0x06B7, 0x06B7, 0x06B7, 0x06B7},
+ {0x06B8, 0x06B8, 0x06B8, 0x06B8},
+ {0x06B9, 0x06B9, 0x06B9, 0x06B9},
+ {0xFB9E, 0xFB9F, 0xFBE8, 0xFBE9},
+ {0xFBA0, 0xFBA1, 0xFBA2, 0xFBA3},
+ {0x06BC, 0x06BC, 0x06BC, 0x06BC},
+ {0x06BD, 0x06BD, 0x06BD, 0x06BD},
+ {0xFBAA, 0xFBAB, 0xFBAC, 0xFBAD},
+ {0x06BF, 0x06BF, 0x06BF, 0x06BF},
+ {0xFBA4, 0xFBA5, 0xFBA4, 0xFBA5},
+ {0xFBA6, 0xFBA7, 0xFBA8, 0xFBA9},
+ {0x06C2, 0x06C2, 0x06C2, 0x06C2},
+ {0x06C3, 0x06C3, 0x06C3, 0x06C3},
+ {0x06C4, 0x06C4, 0x06C4, 0x06C4},
+ {0xFBE0, 0xFBE1, 0xFBE0, 0xFBE1},
+ {0xFBD9, 0xFBDA, 0xFBD9, 0xFBDA},
+ {0xFBD7, 0xFBD8, 0xFBD7, 0xFBD8},
+ {0xFBDB, 0xFBDC, 0xFBDB, 0xFBDC},
+ {0xFBE2, 0xFBE3, 0xFBE2, 0xFBE3},
+ {0x06CA, 0x06CA, 0x06CA, 0x06CA},
+ {0xFBDE, 0xFBDF, 0xFBDE, 0xFBDF},
+ {0xFBFC, 0xFBFD, 0xFBFE, 0xFBFF},
+ {0x06CD, 0x06CD, 0x06CD, 0x06CD},
+ {0x06CE, 0x06CE, 0x06CE, 0x06CE},
+ {0x06CF, 0x06CF, 0x06CF, 0x06CF},
+ {0xFBE4, 0xFBE5, 0xFBE6, 0xFBE7},
+ {0x06D1, 0x06D1, 0x06D1, 0x06D1},
+ {0xFBAE, 0xFBAF, 0xFBAE, 0xFBAF},
+ {0xFBB0, 0xFBB1, 0xFBB0, 0xFBB1},
+ {0x06D4, 0x06D4, 0x06D4, 0x06D4},
+ {0x06D5, 0x06D5, 0x06D5, 0x06D5},
+};
+static const FX_ARAALEF gs_FX_AlefTable[] = {
+ {0x0622, 0xFEF5},
+ {0x0623, 0xFEF7},
+ {0x0625, 0xFEF9},
+ {0x0627, 0xFEFB},
+};
+static const FX_ARASHADDA gs_FX_ShaddaTable[] = {
+ {0x064C, 0xFC5E},
+ {0x064D, 0xFC5F},
+ {0x064E, 0xFC60},
+ {0x064F, 0xFC61},
+ {0x0650, 0xFC62},
+};
+FX_LPCARBFORMTABLE FX_GetArabicFormTable(FX_WCHAR unicode)
+{
+ if (unicode < 0x622 || unicode > 0x6d5) {
+ return NULL;
+ }
+ return g_FX_ArabicFormTables + unicode - 0x622;
+}
+FX_WCHAR FX_GetArabicFromAlefTable(FX_WCHAR alef)
+{
+ static const FX_INT32 s_iAlefCount = sizeof(gs_FX_AlefTable) / sizeof(FX_ARAALEF);
+ for (FX_INT32 iStart = 0; iStart < s_iAlefCount; iStart ++) {
+ const FX_ARAALEF &v = gs_FX_AlefTable[iStart];
+ if (v.wAlef == alef) {
+ return v.wIsolated;
+ }
+ }
+ return alef;
+}
+FX_WCHAR FX_GetArabicFromShaddaTable(FX_WCHAR shadda)
+{
+ static const FX_INT32 s_iShaddaCount = sizeof(gs_FX_ShaddaTable) / sizeof(FX_ARASHADDA);
+ for (FX_INT32 iStart = 0; iStart < s_iShaddaCount; iStart ++) {
+ const FX_ARASHADDA &v = gs_FX_ShaddaTable[iStart];
+ if (v.wShadda == shadda) {
+ return v.wIsolated;
+ }
+ }
+ return shadda;
+}
+#ifdef __cplusplus
+};
+#endif
+IFX_ArabicChar* IFX_ArabicChar::Create()
+{
+ return FX_NEW CFX_ArabicChar;
+}
+FX_BOOL CFX_ArabicChar::IsArabicChar(FX_WCHAR wch) const
+{
+ FX_DWORD dwRet = (gs_FX_TextLayout_CodeProperties[(FX_WORD)wch] & FX_CHARTYPEBITSMASK);
+ return dwRet >= FX_CHARTYPE_ArabicAlef;
+}
+FX_BOOL CFX_ArabicChar::IsArabicFormChar(FX_WCHAR wch) const
+{
+ return (gs_FX_TextLayout_CodeProperties[(FX_WORD)wch] & FX_CHARTYPEBITSMASK) == FX_CHARTYPE_ArabicForm;
+}
+FX_WCHAR CFX_ArabicChar::GetFormChar(FX_WCHAR wch, FX_WCHAR prev, FX_WCHAR next) const
+{
+ CFX_Char c(wch, gs_FX_TextLayout_CodeProperties[(FX_WORD)wch]);
+ CFX_Char p(prev, gs_FX_TextLayout_CodeProperties[(FX_WORD)prev]);
+ CFX_Char n(next, gs_FX_TextLayout_CodeProperties[(FX_WORD)next]);
+ return GetFormChar(&c, &p, &n);
+}
+FX_WCHAR CFX_ArabicChar::GetFormChar(const CFX_Char *cur, const CFX_Char *prev, const CFX_Char *next) const
+{
+ FX_CHARTYPE eCur;
+ FX_WCHAR wCur;
+ FX_LPCARBFORMTABLE ft = ParseChar(cur, wCur, eCur);
+ if (eCur < FX_CHARTYPE_ArabicAlef || eCur >= FX_CHARTYPE_ArabicNormal) {
+ return wCur;
+ }
+ FX_CHARTYPE ePrev;
+ FX_WCHAR wPrev;
+ ParseChar(prev, wPrev, ePrev);
+ if (wPrev == 0x0644 && eCur == FX_CHARTYPE_ArabicAlef) {
+ return 0xFEFF;
+ }
+ FX_CHARTYPE eNext;
+ FX_WCHAR wNext;
+ ParseChar(next, wNext, eNext);
+ FX_BOOL bAlef = (eNext == FX_CHARTYPE_ArabicAlef && wCur == 0x644);
+ if (ePrev < FX_CHARTYPE_ArabicAlef) {
+ if (bAlef) {
+ return FX_GetArabicFromAlefTable(wNext);
+ } else {
+ return (eNext < FX_CHARTYPE_ArabicAlef) ? ft->wIsolated : ft->wInitial;
+ }
+ } else {
+ if (bAlef) {
+ wCur = FX_GetArabicFromAlefTable(wNext);
+ return (ePrev != FX_CHARTYPE_ArabicDistortion) ? wCur : ++ wCur;
+ } else if (ePrev == FX_CHARTYPE_ArabicAlef || ePrev == FX_CHARTYPE_ArabicSpecial) {
+ return (eNext < FX_CHARTYPE_ArabicAlef) ? ft->wIsolated : ft->wInitial;
+ } else {
+ return (eNext < FX_CHARTYPE_ArabicAlef) ? ft->wFinal : ft->wMedial;
+ }
+ }
+}
+FX_LPCARBFORMTABLE CFX_ArabicChar::ParseChar(const CFX_Char *pTC, FX_WCHAR &wChar, FX_CHARTYPE &eType) const
+{
+ if (pTC == NULL) {
+ eType = FX_CHARTYPE_Unknown;
+ wChar = 0xFEFF;
+ return NULL;
+ }
+ eType = (FX_CHARTYPE)pTC->GetCharType();
+ wChar = (FX_WCHAR)pTC->m_wCharCode;
+ FX_LPCARBFORMTABLE pFT = FX_GetArabicFormTable(wChar);
+ if (pFT == NULL || eType >= FX_CHARTYPE_ArabicNormal) {
+ eType = FX_CHARTYPE_Unknown;
+ }
+ return pFT;
+}
+void FX_BidiReverseString(CFX_WideString &wsText, FX_INT32 iStart, FX_INT32 iCount)
+{
+ FXSYS_assert(iStart > -1 && iStart < wsText.GetLength());
+ FXSYS_assert(iCount >= 0 && iStart + iCount <= wsText.GetLength());
+ FX_WCHAR wch;
+ FX_LPWSTR pStart = (FX_LPWSTR)(FX_LPCWSTR)wsText;
+ pStart += iStart;
+ FX_LPWSTR pEnd = pStart + iCount - 1;
+ while (pStart < pEnd) {
+ wch = *pStart;
+ *pStart ++ = *pEnd;
+ *pEnd -- = wch;
+ }
+}
+void FX_BidiSetDeferredRun(CFX_Int32Array &values, FX_INT32 iStart, FX_INT32 iCount, FX_INT32 iValue)
+{
+ FXSYS_assert(iStart > -1 && iStart <= values.GetSize());
+ FXSYS_assert(iStart - iCount > -1);
+ for (FX_INT32 i = iStart - 1; i >= iStart - iCount; i --) {
+ values.SetAt(i, iValue);
+ }
+}
+const FX_INT32 gc_FX_BidiNTypes[] = {
+ FX_BIDICLASS_N,
+ FX_BIDICLASS_L,
+ FX_BIDICLASS_R,
+ FX_BIDICLASS_AN,
+ FX_BIDICLASS_EN,
+ FX_BIDICLASS_AL,
+ FX_BIDICLASS_NSM,
+ FX_BIDICLASS_CS,
+ FX_BIDICLASS_ES,
+ FX_BIDICLASS_ET,
+ FX_BIDICLASS_BN,
+ FX_BIDICLASS_BN,
+ FX_BIDICLASS_N,
+ FX_BIDICLASS_B,
+ FX_BIDICLASS_RLO,
+ FX_BIDICLASS_RLE,
+ FX_BIDICLASS_LRO,
+ FX_BIDICLASS_LRE,
+ FX_BIDICLASS_PDF,
+ FX_BIDICLASS_ON,
+};
+void FX_BidiClassify(const CFX_WideString &wsText, CFX_Int32Array &classes, FX_BOOL bWS)
+{
+ FXSYS_assert(wsText.GetLength() == classes.GetSize());
+ FX_INT32 iCount = wsText.GetLength();
+ FX_LPCWSTR pwsStart = (FX_LPCWSTR)wsText;
+ FX_WCHAR wch;
+ FX_INT32 iCls;
+ if (bWS) {
+ for (FX_INT32 i = 0; i < iCount; i ++) {
+ wch = *pwsStart ++;
+ iCls = ((gs_FX_TextLayout_CodeProperties[(FX_WORD)wch] & FX_BIDICLASSBITSMASK) >> FX_BIDICLASSBITS);
+ classes.SetAt(i, iCls);
+ }
+ } else {
+ for (FX_INT32 i = 0; i < iCount; i ++) {
+ wch = *pwsStart ++;
+ iCls = ((gs_FX_TextLayout_CodeProperties[(FX_WORD)wch] & FX_BIDICLASSBITSMASK) >> FX_BIDICLASSBITS);
+ classes.SetAt(i, gc_FX_BidiNTypes[iCls]);
+ }
+ }
+}
+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)
+{
+ FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL && iNest >= 0);
+ FXSYS_assert(classes.GetSize() == levels.GetSize());
+ FXSYS_assert(iStart >= 0 && iStart < classes.GetSize());
+ FXSYS_assert(iCount >= 0 && iStart + iCount <= classes.GetSize());
+ if (iCount < 1) {
+ return 0;
+ }
+#if 0
+ FX_INT32 iLastNest = iNest;
+#endif
+ FX_INT32 iSize = classes.GetSize();
+ FX_INT32 i = iStart, iCur, iCls;
+ for (; i < iSize && iCount > 0; i ++, iCount --) {
+ iCur = iCls = classes.GetAt(i);
+#if 0
+ switch (iCls) {
+ case FX_BIDICLASS_LRO:
+ case FX_BIDICLASS_LRE:
+ classes.SetAt(i, FX_BIDICLASS_BN);
+ iCls = FX_BIDICLASS_BN;
+ iNest ++;
+ if (FX_BidiGreaterEven(iBaseLevel) <= MAX_LEVEL) {
+ FX_INT32 iLevel = FX_BidiGreaterEven(iBaseLevel);
+ levels.SetAt(i, iLevel);
+ i += FX_BidiResolveExplicit(iLevel,
+ (iCls == FX_BIDICLASS_LRE ? FX_BIDICLASS_N : FX_BIDICLASS_L),
+ classes,
+ levels,
+ i + 1,
+ iCount - 1,
+ iNest);
+ iNest --;
+ continue;
+ }
+ break;
+ case FX_BIDICLASS_RLO:
+ case FX_BIDICLASS_RLE:
+ classes.SetAt(i, FX_BIDICLASS_BN);
+ iCls = FX_BIDICLASS_BN;
+ iNest ++;
+ if (FX_BidiGreaterOdd(iBaseLevel) <= MAX_LEVEL) {
+ FX_INT32 iLevel = FX_BidiGreaterOdd(iBaseLevel);
+ levels.SetAt(i, iLevel);
+ i += FX_BidiResolveExplicit(iLevel,
+ (iCls == FX_BIDICLASS_RLE ? FX_BIDICLASS_N : FX_BIDICLASS_R),
+ classes,
+ levels,
+ i + 1,
+ iCount - 1,
+ iNest);
+ iNest --;
+ continue;
+ }
+ break;
+ case FX_BIDICLASS_PDF:
+ classes.SetAt(i, FX_BIDICLASS_BN);
+ iCls = FX_BIDICLASS_BN;
+ if (iNest) {
+ if (iLastNest < iNest) {
+ iNest --;
+ } else {
+ iSize = i;
+ }
+ }
+ break;
+ }
+ iCur = iCls;
+#endif
+ if (iDirection != FX_BIDICLASS_N) {
+ iCls = iDirection;
+ }
+ if (iCur != FX_BIDICLASS_BN) {
+ classes.SetAt(i, iCls);
+ }
+ levels.SetAt(i, iBaseLevel);
+ }
+ return i - iStart;
+}
+const FX_INT32 gc_FX_BidiWeakStates[][10] = {
+ {FX_BWSao, FX_BWSxl, FX_BWSxr, FX_BWScn, FX_BWScn, FX_BWSxa, FX_BWSxa, FX_BWSao, FX_BWSao, FX_BWSao},
+ {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSxr, FX_BWSro, FX_BWSro, FX_BWSrt},
+ {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSxl, FX_BWSlo, FX_BWSlo, FX_BWSlt},
+ {FX_BWSao, FX_BWSxl, FX_BWSxr, FX_BWScn, FX_BWScn, FX_BWSxa, FX_BWSao, FX_BWSao, FX_BWSao, FX_BWSao},
+ {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSro, FX_BWSro, FX_BWSro, FX_BWSrt},
+ {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSlo, FX_BWSlo, FX_BWSlo, FX_BWSlt},
+ {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSrt, FX_BWSro, FX_BWSro, FX_BWSrt},
+ {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSlt, FX_BWSlo, FX_BWSlo, FX_BWSlt},
+ {FX_BWSao, FX_BWSxl, FX_BWSxr, FX_BWScn, FX_BWScn, FX_BWSxa, FX_BWScn, FX_BWSac, FX_BWSao, FX_BWSao},
+ {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSra, FX_BWSrc, FX_BWSro, FX_BWSrt},
+ {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSre, FX_BWSrs, FX_BWSrs, FX_BWSret},
+ {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSla, FX_BWSlc, FX_BWSlo, FX_BWSlt},
+ {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSle, FX_BWSls, FX_BWSls, FX_BWSlet},
+ {FX_BWSao, FX_BWSxl, FX_BWSxr, FX_BWScn, FX_BWScn, FX_BWSxa, FX_BWSao, FX_BWSao, FX_BWSao, FX_BWSao},
+ {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSro, FX_BWSro, FX_BWSro, FX_BWSrt},
+ {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSro, FX_BWSro, FX_BWSro, FX_BWSrt},
+ {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSlo, FX_BWSlo, FX_BWSlo, FX_BWSlt},
+ {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSlo, FX_BWSlo, FX_BWSlo, FX_BWSlt},
+ {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSret, FX_BWSro, FX_BWSro, FX_BWSret},
+ {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSlet, FX_BWSlo, FX_BWSlo, FX_BWSlet},
+};
+const FX_INT32 gc_FX_BidiWeakActions[][10] = {
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxA, FX_BWAxxR, FX_BWAxxR, FX_BWAxxN, FX_BWAxxN, FX_BWAxxN},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxE, FX_BWAxxR, FX_BWAxxR, FX_BWAxxN, FX_BWAxxN, FX_BWAxIx},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxL, FX_BWAxxR, FX_BWAxxL, FX_BWAxxN, FX_BWAxxN, FX_BWAxIx},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxA, FX_BWAxxR, FX_BWAxxN, FX_BWAxxN, FX_BWAxxN, FX_BWAxxN},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxE, FX_BWAxxR, FX_BWAxxN, FX_BWAxxN, FX_BWAxxN, FX_BWAxIx},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxL, FX_BWAxxR, FX_BWAxxN, FX_BWAxxN, FX_BWAxxN, FX_BWAxIx},
+ {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWAExE, FX_BWANxR, FX_BWAxIx, FX_BWANxN, FX_BWANxN, FX_BWAxIx},
+ {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWALxL, FX_BWANxR, FX_BWAxIx, FX_BWANxN, FX_BWANxN, FX_BWAxIx},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxA, FX_BWAxxR, FX_BWAxxA, FX_BWAxIx, FX_BWAxxN, FX_BWAxxN},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxE, FX_BWAxxR, FX_BWAxxA, FX_BWAxIx, FX_BWAxxN, FX_BWAxIx},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxE, FX_BWAxxR, FX_BWAxxE, FX_BWAxIx, FX_BWAxIx, FX_BWAxxE},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxL, FX_BWAxxR, FX_BWAxxA, FX_BWAxIx, FX_BWAxxN, FX_BWAxIx},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxL, FX_BWAxxR, FX_BWAxxL, FX_BWAxIx, FX_BWAxIx, FX_BWAxxL},
+ {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWAAxx, FX_BWAAxA, FX_BWANxR, FX_BWANxN, FX_BWANxN, FX_BWANxN, FX_BWANxN},
+ {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWAAxx, FX_BWANxE, FX_BWANxR, FX_BWANxN, FX_BWANxN, FX_BWANxN, FX_BWANIx},
+ {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWAExE, FX_BWANxR, FX_BWANxN, FX_BWANxN, FX_BWANxN, FX_BWANIx},
+ {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWAAxx, FX_BWANxL, FX_BWANxR, FX_BWANxN, FX_BWANxN, FX_BWANxN, FX_BWANIx},
+ {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWALxL, FX_BWANxR, FX_BWANxN, FX_BWANxN, FX_BWANxN, FX_BWANIx},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxE, FX_BWAxxR, FX_BWAxxE, FX_BWAxxN, FX_BWAxxN, FX_BWAxxE},
+ {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxL, FX_BWAxxR, FX_BWAxxL, FX_BWAxxN, FX_BWAxxN, FX_BWAxxL},
+};
+void FX_BidiResolveWeak(FX_INT32 iBaseLevel, CFX_Int32Array &classes, CFX_Int32Array &levels)
+{
+ FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL);
+ FXSYS_assert(classes.GetSize() == levels.GetSize());
+ FX_INT32 iSize = classes.GetSize();
+ if (iSize < 1) {
+ return;
+ }
+ iSize --;
+ FX_INT32 iLevelCur = iBaseLevel;
+ FX_INT32 iState = FX_IsOdd(iBaseLevel) ? FX_BWSxr : FX_BWSxl;
+ FX_INT32 i = 0, iCount = 0, iClsCur, iClsRun, iClsNew, iAction;
+ for (; i <= iSize; i ++) {
+ iClsCur = classes.GetAt(i);
+#if 0
+ if (iClsCur == FX_BIDICLASS_BN) {
+ levels.SetAt(i, iLevelCur);
+ if (i == iSize && iLevelCur != iBaseLevel) {
+ iClsCur = FX_BidiDirection(iLevelCur);
+ classes.SetAt(i, iClsCur);
+ } else if (i < iSize) {
+ FX_INT32 iLevelNext, iLevelNew;
+ iClsNew = classes.GetAt(i + 1);
+ iLevelNext = levels.GetAt(i + 1);
+ if (iClsNew != FX_BIDICLASS_BN && iLevelCur != iLevelNext) {
+ iLevelNew = iLevelNext;
+ if (iLevelCur > iLevelNew) {
+ iLevelNew = iLevelCur;
+ }
+ levels.SetAt(i, iLevelNew);
+ iClsCur = FX_BidiDirection(iLevelNew);
+ classes.SetAt(i, iClsCur);
+ iLevelCur = iLevelNext;
+ } else {
+ if (iCount) {
+ iCount ++;
+ }
+ continue;
+ }
+ } else {
+ if (iCount) {
+ iCount ++;
+ }
+ continue;
+ }
+ }
+#endif
+ FXSYS_assert(iClsCur <= FX_BIDICLASS_BN);
+ iAction = gc_FX_BidiWeakActions[iState][iClsCur];
+ iClsRun = FX_BidiGetDeferredType(iAction);
+ if (iClsRun != FX_BIDIWEAKACTION_XX && iCount > 0) {
+ FX_BidiSetDeferredRun(classes, i, iCount, iClsRun);
+ iCount = 0;
+ }
+ iClsNew = FX_BidiGetResolvedType(iAction);
+ if (iClsNew != FX_BIDIWEAKACTION_XX) {
+ classes.SetAt(i, iClsNew);
+ }
+ if (FX_BIDIWEAKACTION_IX & iAction) {
+ iCount ++;
+ }
+ iState = gc_FX_BidiWeakStates[iState][iClsCur];
+ }
+ iClsCur = FX_BidiDirection(iLevelCur);
+ iClsRun = FX_BidiGetDeferredType(gc_FX_BidiWeakActions[iState][iClsCur]);
+ if (iClsRun != FX_BIDIWEAKACTION_XX && iCount > 0) {
+ FX_BidiSetDeferredRun(classes, i, iCount, iClsRun);
+ }
+}
+const FX_INT32 gc_FX_BidiNeutralStates[][5] = {
+ {FX_BNSrn, FX_BNSl, FX_BNSr, FX_BNSr, FX_BNSr},
+ {FX_BNSln, FX_BNSl, FX_BNSr, FX_BNSa, FX_BNSl},
+ {FX_BNSrn, FX_BNSl, FX_BNSr, FX_BNSr, FX_BNSr},
+ {FX_BNSln, FX_BNSl, FX_BNSr, FX_BNSa, FX_BNSl},
+ {FX_BNSna, FX_BNSl, FX_BNSr, FX_BNSa, FX_BNSl},
+ {FX_BNSna, FX_BNSl, FX_BNSr, FX_BNSa, FX_BNSl},
+};
+const FX_INT32 gc_FX_BidiNeutralActions[][5] = {
+ {FX_BNAIn, 0, 0, 0, 0 },
+ {FX_BNAIn, 0, 0, 0, FX_BCL },
+ {FX_BNAIn, FX_BNAEn, FX_BNARn, FX_BNARn, FX_BNARn },
+ {FX_BNAIn, FX_BNALn, FX_BNAEn, FX_BNAEn, FX_BNALnL },
+ {FX_BNAIn, 0, 0, 0, FX_BCL },
+ {FX_BNAIn, FX_BNAEn, FX_BNARn, FX_BNARn, FX_BNAEn },
+};
+FX_INT32 FX_BidiGetDeferredNeutrals(FX_INT32 iAction, FX_INT32 iLevel)
+{
+ iAction = (iAction >> 4) & 0xF;
+ if (iAction == (FX_BIDINEUTRALACTION_En >> 4)) {
+ return FX_BidiDirection(iLevel);
+ } else {
+ return iAction;
+ }
+}
+FX_INT32 FX_BidiGetResolvedNeutrals(FX_INT32 iAction)
+{
+ iAction = (iAction & 0xF);
+ if (iAction == FX_BIDINEUTRALACTION_In) {
+ return 0;
+ } else {
+ return iAction;
+ }
+}
+void FX_BidiResolveNeutrals(FX_INT32 iBaseLevel, CFX_Int32Array &classes, const CFX_Int32Array &levels)
+{
+ FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL);
+ FXSYS_assert(classes.GetSize() == levels.GetSize());
+ FX_INT32 iSize = classes.GetSize();
+ if (iSize < 1) {
+ return;
+ }
+ iSize --;
+ FX_INT32 iLevel = iBaseLevel;
+ FX_INT32 iState = FX_IsOdd(iBaseLevel) ? FX_BNSr : FX_BNSl;
+ FX_INT32 i = 0, iCount = 0, iClsCur, iClsRun, iClsNew, iAction;
+ for (; i <= iSize; i ++) {
+ iClsCur = classes.GetAt(i);
+ if (iClsCur == FX_BIDICLASS_BN) {
+ if (iCount) {
+ iCount ++;
+ }
+ continue;
+ }
+ FXSYS_assert(iClsCur < FX_BIDICLASS_AL);
+ iAction = gc_FX_BidiNeutralActions[iState][iClsCur];
+ iClsRun = FX_BidiGetDeferredNeutrals(iAction, iLevel);
+ if (iClsRun != FX_BIDICLASS_N && iCount > 0) {
+ FX_BidiSetDeferredRun(classes, i, iCount, iClsRun);
+ iCount = 0;
+ }
+ iClsNew = FX_BidiGetResolvedNeutrals(iAction);
+ if (iClsNew != FX_BIDICLASS_N) {
+ classes.SetAt(i, iClsNew);
+ }
+ if (FX_BIDINEUTRALACTION_In & iAction) {
+ iCount ++;
+ }
+ iState = gc_FX_BidiNeutralStates[iState][iClsCur];
+ iLevel = levels.GetAt(i);
+ }
+ iClsCur = FX_BidiDirection(iLevel);
+ iClsRun = FX_BidiGetDeferredNeutrals(gc_FX_BidiNeutralActions[iState][iClsCur], iLevel);
+ if (iClsRun != FX_BIDICLASS_N && iCount > 0) {
+ FX_BidiSetDeferredRun(classes, i, iCount, iClsRun);
+ }
+}
+const FX_INT32 gc_FX_BidiAddLevel[][4] = {
+ {0, 1, 2, 2},
+ {1, 0, 1, 1},
+};
+void FX_BidiResolveImplicit(const CFX_Int32Array &classes, CFX_Int32Array &levels)
+{
+ FXSYS_assert(classes.GetSize() == levels.GetSize());
+ FX_INT32 iSize = classes.GetSize();
+ if (iSize < 1) {
+ return;
+ }
+ iSize --;
+ FX_INT32 iCls, iLevel;
+ for (FX_INT32 i = 0; i <= iSize; i ++) {
+ iCls = classes.GetAt(i);
+ if (iCls == FX_BIDICLASS_BN) {
+ continue;
+ }
+ FXSYS_assert(iCls > FX_BIDICLASS_ON && iCls < FX_BIDICLASS_AL);
+ iLevel = levels.GetAt(i);
+ iLevel += gc_FX_BidiAddLevel[FX_IsOdd(iLevel)][iCls - 1];
+ levels.SetAt(i, iLevel);
+ }
+}
+void FX_BidiResolveWhitespace(FX_INT32 iBaseLevel, const CFX_Int32Array &classes, CFX_Int32Array &levels)
+{
+ FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL);
+ FXSYS_assert(classes.GetSize() == levels.GetSize());
+ FX_INT32 iSize = classes.GetSize();
+ if (iSize < 1) {
+ return;
+ }
+ iSize --;
+ FX_INT32 iLevel = iBaseLevel;
+ FX_INT32 i = 0, iCount = 0;
+ for (; i <= iSize; i ++) {
+ switch(classes.GetAt(i)) {
+ case FX_BIDICLASS_WS:
+ iCount ++;
+ break;
+ case FX_BIDICLASS_RLE:
+ case FX_BIDICLASS_LRE:
+ case FX_BIDICLASS_LRO:
+ case FX_BIDICLASS_RLO:
+ case FX_BIDICLASS_PDF:
+ case FX_BIDICLASS_BN:
+ levels.SetAt(i, iLevel);
+ iCount ++;
+ break;
+ case FX_BIDICLASS_S:
+ case FX_BIDICLASS_B:
+ if (iCount > 0) {
+ FX_BidiSetDeferredRun(levels, i, iCount, iBaseLevel);
+ }
+ levels.SetAt(i, iBaseLevel);
+ iCount = 0;
+ break;
+ default:
+ iCount = 0;
+ break;
+ }
+ iLevel = levels.GetAt(i);
+ }
+ if (iCount > 0) {
+ FX_BidiSetDeferredRun(levels, i, iCount, iBaseLevel);
+ }
+}
+FX_INT32 FX_BidiReorderLevel(FX_INT32 iBaseLevel, CFX_WideString &wsText, const CFX_Int32Array &levels, FX_INT32 iStart, FX_BOOL bReverse)
+{
+ FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL);
+ FXSYS_assert(wsText.GetLength() == levels.GetSize());
+ FXSYS_assert(iStart >= 0 && iStart < wsText.GetLength());
+ FX_INT32 iSize = wsText.GetLength();
+ if (iSize < 1) {
+ return 0;
+ }
+ bReverse = bReverse || FX_IsOdd(iBaseLevel);
+ FX_INT32 i = iStart, iLevel;
+ for (; i < iSize; i ++) {
+ if ((iLevel = levels.GetAt(i)) == iBaseLevel) {
+ continue;
+ }
+ if (iLevel < iBaseLevel) {
+ break;
+ }
+ i += FX_BidiReorderLevel(iBaseLevel + 1, wsText, levels, i, bReverse) - 1;
+ }
+ FX_INT32 iCount = i - iStart;
+ if (bReverse && iCount > 1) {
+ FX_BidiReverseString(wsText, iStart, iCount);
+ }
+ return iCount;
+}
+void FX_BidiReorder(FX_INT32 iBaseLevel, CFX_WideString &wsText, const CFX_Int32Array &levels)
+{
+ FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL);
+ FXSYS_assert(wsText.GetLength() == levels.GetSize());
+ FX_INT32 iSize = wsText.GetLength();
+ if (iSize < 1) {
+ return;
+ }
+ FX_INT32 i = 0;
+ while (i < iSize) {
+ i += FX_BidiReorderLevel(iBaseLevel, wsText, levels, i, FALSE);
+ }
+}
+void FX_BidiLine(CFX_WideString &wsText, FX_INT32 iBaseLevel)
+{
+ FX_INT32 iLength = wsText.GetLength();
+ if (iLength < 2) {
+ return;
+ }
+ CFX_Int32Array classes, levels;
+ classes.SetAtGrow(iLength - 1, 0);
+ levels.SetAtGrow(iLength - 1, 0);
+ FX_BidiClassify(wsText, classes, FALSE);
+ FX_BidiResolveExplicit(iBaseLevel, FX_BIDICLASS_N, classes, levels, 0, iLength, 0);
+ FX_BidiResolveWeak(iBaseLevel, classes, levels);
+ FX_BidiResolveNeutrals(iBaseLevel, classes, levels);
+ FX_BidiResolveImplicit(classes, levels);
+ FX_BidiClassify(wsText, classes, TRUE);
+ FX_BidiResolveWhitespace(iBaseLevel, classes, levels);
+ FX_BidiReorder(iBaseLevel, wsText, levels);
+ classes.RemoveAll();
+ levels.RemoveAll();
+}
+template<class baseType>
+class CFX_BidiLineTemplate
+{
+public:
+ void FX_BidiReverseString(CFX_ArrayTemplate<baseType> &chars, FX_INT32 iStart, FX_INT32 iCount)
+ {
+ FXSYS_assert(iStart > -1 && iStart < chars.GetSize());
+ FXSYS_assert(iCount >= 0 && iStart + iCount <= chars.GetSize());
+ baseType *pStart, *pEnd;
+ FX_INT32 iEnd = iStart + iCount - 1, iTemp;
+ while (iStart < iEnd) {
+ pStart = chars.GetDataPtr(iStart ++);
+ pEnd = chars.GetDataPtr(iEnd --);
+ iTemp = pStart->m_iBidiPos;
+ pStart->m_iBidiPos = pEnd->m_iBidiPos;
+ pEnd->m_iBidiPos = iTemp;
+ }
+ }
+ void FX_BidiSetDeferredRun(CFX_ArrayTemplate<baseType> &chars, FX_BOOL bClass, FX_INT32 iStart, FX_INT32 iCount, FX_INT32 iValue)
+ {
+ FXSYS_assert(iStart > -1 && iStart <= chars.GetSize());
+ FXSYS_assert(iStart - iCount > -1);
+ baseType *pTC;
+ FX_INT32 iLast = iStart - iCount;
+ if (bClass) {
+ for (FX_INT32 i = iStart - 1; i >= iLast; i --) {
+ pTC = chars.GetDataPtr(i);
+ pTC->m_iBidiClass = (FX_INT16)iValue;
+ }
+ } else {
+ for (FX_INT32 i = iStart - 1; i >= iLast; i --) {
+ pTC = chars.GetDataPtr(i);
+ pTC->m_iBidiLevel = (FX_INT16)iValue;
+ }
+ }
+ }
+ void FX_BidiClassify(CFX_ArrayTemplate<baseType> &chars, FX_INT32 iCount, FX_BOOL bWS)
+ {
+ FXSYS_assert(iCount > -1 && iCount <= chars.GetSize());
+ baseType *pTC;
+ if (bWS) {
+ for (FX_INT32 i = 0; i < iCount; i ++) {
+ pTC = chars.GetDataPtr(i);
+ pTC->m_iBidiClass = (FX_INT16)(pTC->m_dwCharProps & FX_BIDICLASSBITSMASK) >> FX_BIDICLASSBITS;
+ }
+ } else {
+ for (FX_INT32 i = 0; i < iCount; i ++) {
+ pTC = chars.GetDataPtr(i);
+ pTC->m_iBidiClass = (FX_INT16)gc_FX_BidiNTypes[(pTC->m_dwCharProps & FX_BIDICLASSBITSMASK) >> FX_BIDICLASSBITS];
+ }
+ }
+ }
+ void FX_BidiResolveExplicit(CFX_ArrayTemplate<baseType> &chars, FX_INT32 iCount, FX_INT32 iBaseLevel)
+ {
+ FXSYS_assert(iCount > -1 && iCount <= chars.GetSize());
+ FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL);
+ if (iCount < 1) {
+ return;
+ }
+ baseType *pTC;
+ for (FX_INT32 i = 0; i < iCount; i ++) {
+ pTC = chars.GetDataPtr(i);
+ pTC->m_iBidiLevel = (FX_INT16)iBaseLevel;
+ }
+ }
+ void FX_BidiResolveWeak(CFX_ArrayTemplate<baseType> &chars, FX_INT32 iCount, FX_INT32 iBaseLevel)
+ {
+ FXSYS_assert(iCount > -1 && iCount <= chars.GetSize());
+ iCount --;
+ if (iCount < 1) {
+ return;
+ }
+ baseType *pTC, *pTCNext;
+ FX_INT32 iLevelCur = iBaseLevel;
+ FX_INT32 iState = FX_IsOdd(iBaseLevel) ? FX_BWSxr : FX_BWSxl;
+ FX_INT32 i = 0, iNum = 0, iClsCur, iClsRun, iClsNew, iAction;
+ for (; i <= iCount; i ++) {
+ pTC = chars.GetDataPtr(i);
+ iClsCur = pTC->m_iBidiClass;
+ if (iClsCur == FX_BIDICLASS_BN) {
+ pTC->m_iBidiLevel = (FX_INT16)iLevelCur;
+ if (i == iCount && iLevelCur != iBaseLevel) {
+ iClsCur = FX_BidiDirection(iLevelCur);
+ pTC->m_iBidiClass = (FX_INT16)iClsCur;
+ } else if (i < iCount) {
+ pTCNext = chars.GetDataPtr(i + 1);
+ FX_INT32 iLevelNext, iLevelNew;
+ iClsNew = pTCNext->m_iBidiClass;
+ iLevelNext = pTCNext->m_iBidiLevel;
+ if (iClsNew != FX_BIDICLASS_BN && iLevelCur != iLevelNext) {
+ iLevelNew = iLevelNext;
+ if (iLevelCur > iLevelNew) {
+ iLevelNew = iLevelCur;
+ }
+ pTC->m_iBidiLevel = (FX_INT16)iLevelNew;
+ iClsCur = FX_BidiDirection(iLevelNew);
+ pTC->m_iBidiClass = (FX_INT16)iClsCur;
+ iLevelCur = iLevelNext;
+ } else {
+ if (iNum > 0) {
+ iNum ++;
+ }
+ continue;
+ }
+ } else {
+ if (iNum > 0) {
+ iNum ++;
+ }
+ continue;
+ }
+ }
+ FXSYS_assert(iClsCur <= FX_BIDICLASS_BN);
+ iAction = gc_FX_BidiWeakActions[iState][iClsCur];
+ iClsRun = FX_BidiGetDeferredType(iAction);
+ if (iClsRun != FX_BIDIWEAKACTION_XX && iNum > 0) {
+ FX_BidiSetDeferredRun(chars, TRUE, i, iNum, iClsRun);
+ iNum = 0;
+ }
+ iClsNew = FX_BidiGetResolvedType(iAction);
+ if (iClsNew != FX_BIDIWEAKACTION_XX) {
+ pTC->m_iBidiClass = (FX_INT16)iClsNew;
+ }
+ if (FX_BIDIWEAKACTION_IX & iAction) {
+ iNum ++;
+ }
+ iState = gc_FX_BidiWeakStates[iState][iClsCur];
+ }
+ if (iNum > 0) {
+ iClsCur = FX_BidiDirection(iBaseLevel);
+ iClsRun = FX_BidiGetDeferredType(gc_FX_BidiWeakActions[iState][iClsCur]);
+ if (iClsRun != FX_BIDIWEAKACTION_XX) {
+ FX_BidiSetDeferredRun(chars, TRUE, i, iNum, iClsRun);
+ }
+ }
+ }
+ void FX_BidiResolveNeutrals(CFX_ArrayTemplate<baseType> &chars, FX_INT32 iCount, FX_INT32 iBaseLevel)
+ {
+ FXSYS_assert(iCount > -1 && iCount <= chars.GetSize());
+ FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL);
+ iCount --;
+ if (iCount < 1) {
+ return;
+ }
+ baseType *pTC;
+ FX_INT32 iLevel = iBaseLevel;
+ FX_INT32 iState = FX_IsOdd(iBaseLevel) ? FX_BNSr : FX_BNSl;
+ FX_INT32 i = 0, iNum = 0, iClsCur, iClsRun, iClsNew, iAction;
+ for (; i <= iCount; i ++) {
+ pTC = chars.GetDataPtr(i);
+ iClsCur = pTC->m_iBidiClass;
+ if (iClsCur == FX_BIDICLASS_BN) {
+ if (iNum) {
+ iNum ++;
+ }
+ continue;
+ }
+ FXSYS_assert(iClsCur < FX_BIDICLASS_AL);
+ iAction = gc_FX_BidiNeutralActions[iState][iClsCur];
+ iClsRun = FX_BidiGetDeferredNeutrals(iAction, iLevel);
+ if (iClsRun != FX_BIDICLASS_N && iNum > 0) {
+ FX_BidiSetDeferredRun(chars, TRUE, i, iNum, iClsRun);
+ iNum = 0;
+ }
+ iClsNew = FX_BidiGetResolvedNeutrals(iAction);
+ if (iClsNew != FX_BIDICLASS_N) {
+ pTC->m_iBidiClass = (FX_INT16)iClsNew;
+ }
+ if (FX_BIDINEUTRALACTION_In & iAction) {
+ iNum ++;
+ }
+ iState = gc_FX_BidiNeutralStates[iState][iClsCur];
+ iLevel = pTC->m_iBidiLevel;
+ }
+ if (iNum > 0) {
+ iClsCur = FX_BidiDirection(iLevel);
+ iClsRun = FX_BidiGetDeferredNeutrals(gc_FX_BidiNeutralActions[iState][iClsCur], iLevel);
+ if (iClsRun != FX_BIDICLASS_N) {
+ FX_BidiSetDeferredRun(chars, TRUE, i, iNum, iClsRun);
+ }
+ }
+ }
+ void FX_BidiResolveImplicit(CFX_ArrayTemplate<baseType> &chars, FX_INT32 iCount)
+ {
+ FXSYS_assert(iCount > -1 && iCount <= chars.GetSize());
+ baseType *pTC;
+ FX_INT32 iCls, iLevel;
+ for (FX_INT32 i = 0; i < iCount; i ++) {
+ pTC = chars.GetDataPtr(i);
+ iCls = pTC->m_iBidiClass;
+ if (iCls == FX_BIDICLASS_BN) {
+ continue;
+ }
+ FXSYS_assert(iCls > FX_BIDICLASS_ON && iCls < FX_BIDICLASS_AL);
+ iLevel = pTC->m_iBidiLevel;
+ iLevel += gc_FX_BidiAddLevel[FX_IsOdd(iLevel)][iCls - 1];
+ pTC->m_iBidiLevel = (FX_INT16)iLevel;
+ }
+ }
+ void FX_BidiResolveWhitespace(CFX_ArrayTemplate<baseType> &chars, FX_INT32 iCount, FX_INT32 iBaseLevel)
+ {
+ FXSYS_assert(iCount > -1 && iCount <= chars.GetSize());
+ FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL);
+ if (iCount < 1) {
+ return;
+ }
+ iCount --;
+ FX_INT32 iLevel = iBaseLevel;
+ FX_INT32 i = 0, iNum = 0;
+ baseType *pTC;
+ for (; i <= iCount; i ++) {
+ pTC = chars.GetDataPtr(i);
+ switch(pTC->m_iBidiClass) {
+ case FX_BIDICLASS_WS:
+ iNum ++;
+ break;
+ case FX_BIDICLASS_RLE:
+ case FX_BIDICLASS_LRE:
+ case FX_BIDICLASS_LRO:
+ case FX_BIDICLASS_RLO:
+ case FX_BIDICLASS_PDF:
+ case FX_BIDICLASS_BN:
+ pTC->m_iBidiLevel = (FX_INT16)iLevel;
+ iNum ++;
+ break;
+ case FX_BIDICLASS_S:
+ case FX_BIDICLASS_B:
+ if (iNum > 0) {
+ FX_BidiSetDeferredRun(chars, FALSE, i, iNum, iBaseLevel);
+ }
+ pTC->m_iBidiLevel = (FX_INT16)iBaseLevel;
+ iNum = 0;
+ break;
+ default:
+ iNum = 0;
+ break;
+ }
+ iLevel = pTC->m_iBidiLevel;
+ }
+ if (iNum > 0) {
+ FX_BidiSetDeferredRun(chars, FALSE, i, iNum, iBaseLevel);
+ }
+ }
+ FX_INT32 FX_BidiReorderLevel(CFX_ArrayTemplate<baseType> &chars, FX_INT32 iCount, FX_INT32 iBaseLevel, FX_INT32 iStart, FX_BOOL bReverse)
+ {
+ FXSYS_assert(iCount > -1 && iCount <= chars.GetSize());
+ FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL);
+ FXSYS_assert(iStart >= 0 && iStart < iCount);
+ if (iCount < 1) {
+ return 0;
+ }
+ baseType *pTC;
+ bReverse = bReverse || FX_IsOdd(iBaseLevel);
+ FX_INT32 i = iStart, iLevel;
+ for (; i < iCount; i ++) {
+ pTC = chars.GetDataPtr(i);
+ if ((iLevel = pTC->m_iBidiLevel) == iBaseLevel) {
+ continue;
+ }
+ if (iLevel < iBaseLevel) {
+ break;
+ }
+ i += FX_BidiReorderLevel(chars, iCount, iBaseLevel + 1, i, bReverse) - 1;
+ }
+ FX_INT32 iNum = i - iStart;
+ if (bReverse && iNum > 1) {
+ FX_BidiReverseString(chars, iStart, iNum);
+ }
+ return iNum;
+ }
+ void FX_BidiReorder(CFX_ArrayTemplate<baseType> &chars, FX_INT32 iCount, FX_INT32 iBaseLevel)
+ {
+ FXSYS_assert(iCount > -1 && iCount <= chars.GetSize());
+ FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL);
+ FX_INT32 i = 0;
+ while (i < iCount) {
+ i += FX_BidiReorderLevel(chars, iCount, iBaseLevel, i, FALSE);
+ }
+ }
+ void FX_BidiPosition(CFX_ArrayTemplate<baseType> &chars, FX_INT32 iCount)
+ {
+ FXSYS_assert(iCount > -1 && iCount <= chars.GetSize());
+ baseType *pTC;
+ FX_INT32 i = 0;
+ while (i < iCount) {
+ pTC = chars.GetDataPtr(i);
+ pTC = chars.GetDataPtr(pTC->m_iBidiPos);
+ pTC->m_iBidiOrder = i ++;
+ }
+ }
+
+ void FX_BidiLine(CFX_ArrayTemplate<baseType> &chars, FX_INT32 iCount, FX_INT32 iBaseLevel)
+ {
+ FXSYS_assert(iCount > -1 && iCount <= chars.GetSize());
+ if (iCount < 2) {
+ return;
+ }
+ FX_BidiClassify(chars, iCount, FALSE);
+ FX_BidiResolveExplicit(chars, iCount, iBaseLevel);
+ FX_BidiResolveWeak(chars, iCount, iBaseLevel);
+ FX_BidiResolveNeutrals(chars, iCount, iBaseLevel);
+ FX_BidiResolveImplicit(chars, iCount);
+ FX_BidiClassify(chars, iCount, TRUE);
+ FX_BidiResolveWhitespace(chars, iCount, iBaseLevel);
+ FX_BidiReorder(chars, iCount, iBaseLevel);
+ FX_BidiPosition(chars, iCount);
+ }
+};
+void FX_BidiLine(CFX_TxtCharArray &chars, FX_INT32 iCount, FX_INT32 iBaseLevel)
+{
+ CFX_BidiLineTemplate<CFX_TxtChar> blt;
+ blt.FX_BidiLine(chars, iCount, iBaseLevel);
+}
+void FX_BidiLine(CFX_RTFCharArray &chars, FX_INT32 iCount, FX_INT32 iBaseLevel)
+{
+ CFX_BidiLineTemplate<CFX_RTFChar> blt;
+ blt.FX_BidiLine(chars, iCount, iBaseLevel);
+}
IFX_BidiChar* IFX_BidiChar::Create()
{
return FX_NEW CFX_BidiChar;