Cleanup the xfa/src/fgas directory.

This CL moves the code from xfa/src/fgas/src up one level. It then takes the
headers in xfa/src/fgas/include and moves them to their correct folder. The
src/ and include/ directories are then removed.

In some cases, when moving from include/ there was another header with the
same name. Those headers were either folded together, or the content of the
conflicting folder moved to an anonymous namespace in the cpp file as they were
not used anywhere else.

Files with duplicate names as core/src/crt were renamed to be fgas_ instead of
fx_. (e.g. fgas_system.h, fgas_memory.h, fgas_stream.h)

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1776303002 .

1 files changed, 1824 insertions, 0 deletions

diff --git a/xfa/src/fgas/layout/fgas_textbreak.cpp b/xfa/src/fgas/layout/fgas_textbreak.cpp
new file mode 100644
index 0000000000..af7be50a51
--- /dev/null
+++ b/xfa/src/fgas/layout/fgas_textbreak.cpp
@@ -0,0 +1,1824 @@
+// 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
+
+#include "xfa/src/fgas/layout/fgas_textbreak.h"
+
+#include <algorithm>
+
+#include "core/include/fxcrt/fx_arb.h"
+#include "core/include/fxcrt/fx_memory.h"
+#include "xfa/src/fgas/layout/fgas_linebreak.h"
+#include "xfa/src/fgas/layout/fgas_unicode.h"
+
+namespace {
+
+class CFX_TxtLine {
+ public:
+  CFX_TxtLine(int32_t iBlockSize)
+      : m_iStart(0), m_iWidth(0), m_iArabicChars(0) {
+    m_pLineChars = new CFX_TxtCharArray;
+    m_pLinePieces = new CFX_TxtPieceArray(16);
+  }
+  ~CFX_TxtLine() {
+    RemoveAll();
+    delete m_pLineChars;
+    delete m_pLinePieces;
+  }
+  int32_t CountChars() const { return m_pLineChars->GetSize(); }
+  CFX_TxtChar* GetCharPtr(int32_t index) const {
+    FXSYS_assert(index > -1 && index < m_pLineChars->GetSize());
+    return m_pLineChars->GetDataPtr(index);
+  }
+  int32_t CountPieces() const { return m_pLinePieces->GetSize(); }
+  CFX_TxtPiece* GetPiecePtr(int32_t index) const {
+    FXSYS_assert(index > -1 && index < m_pLinePieces->GetSize());
+    return m_pLinePieces->GetPtrAt(index);
+  }
+  void GetString(CFX_WideString& wsStr) const {
+    int32_t iCount = m_pLineChars->GetSize();
+    FX_WCHAR* pBuf = wsStr.GetBuffer(iCount);
+    CFX_Char* pChar;
+    for (int32_t i = 0; i < iCount; i++) {
+      pChar = m_pLineChars->GetDataPtr(i);
+      *pBuf++ = (FX_WCHAR)pChar->m_wCharCode;
+    }
+    wsStr.ReleaseBuffer(iCount);
+  }
+  void RemoveAll(FX_BOOL bLeaveMemory = FALSE) {
+    m_pLineChars->RemoveAll();
+    m_pLinePieces->RemoveAll(bLeaveMemory);
+    m_iWidth = 0;
+    m_iArabicChars = 0;
+  }
+  CFX_TxtCharArray* m_pLineChars;
+  CFX_TxtPieceArray* m_pLinePieces;
+  int32_t m_iStart;
+  int32_t m_iWidth;
+  int32_t m_iArabicChars;
+};
+
+class CFX_TxtBreak : public IFX_TxtBreak {
+ public:
+  CFX_TxtBreak(FX_DWORD dwPolicies);
+  ~CFX_TxtBreak();
+  virtual void Release() { delete this; }
+  virtual void SetLineWidth(FX_FLOAT fLineWidth);
+  virtual void SetLinePos(FX_FLOAT fLinePos);
+  virtual FX_DWORD GetLayoutStyles() const { return m_dwLayoutStyles; }
+  virtual void SetLayoutStyles(FX_DWORD dwLayoutStyles);
+  virtual void SetFont(IFX_Font* pFont);
+  virtual void SetFontSize(FX_FLOAT fFontSize);
+  virtual void SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant);
+  virtual void SetDefaultChar(FX_WCHAR wch);
+  virtual void SetParagraphBreakChar(FX_WCHAR wch);
+  virtual void SetLineBreakTolerance(FX_FLOAT fTolerance);
+  virtual void SetHorizontalScale(int32_t iScale);
+  virtual void SetVerticalScale(int32_t iScale);
+  virtual void SetCharRotation(int32_t iCharRotation);
+  virtual void SetCharSpace(FX_FLOAT fCharSpace);
+  virtual void SetAlignment(int32_t iAlignment);
+  virtual FX_DWORD GetContextCharStyles() const;
+  virtual void SetContextCharStyles(FX_DWORD dwCharStyles);
+  virtual void SetCombWidth(FX_FLOAT fCombWidth);
+  virtual void SetUserData(void* pUserData);
+  virtual FX_DWORD AppendChar(FX_WCHAR wch);
+  virtual FX_DWORD EndBreak(FX_DWORD dwStatus = FX_TXTBREAK_PieceBreak);
+  virtual int32_t CountBreakChars() const;
+  virtual int32_t CountBreakPieces() const;
+  virtual const CFX_TxtPiece* GetBreakPiece(int32_t index) const;
+  virtual void ClearBreakPieces();
+  virtual void Reset();
+  virtual int32_t GetDisplayPos(
+      const FX_TXTRUN* pTxtRun,
+      FXTEXT_CHARPOS* pCharPos,
+      FX_BOOL bCharCode = FALSE,
+      CFX_WideString* pWSForms = NULL,
+      FX_AdjustCharDisplayPos pAdjustPos = NULL) const;
+  virtual int32_t GetCharRects(const FX_TXTRUN* pTxtRun,
+                               CFX_RectFArray& rtArray,
+                               FX_BOOL bCharBBox = FALSE) const;
+  void AppendChar_PageLoad(CFX_Char* pCurChar, FX_DWORD dwProps);
+  FX_DWORD AppendChar_Combination(CFX_Char* pCurChar, int32_t iRotation);
+  FX_DWORD AppendChar_Tab(CFX_Char* pCurChar, int32_t iRotation);
+  FX_DWORD AppendChar_Control(CFX_Char* pCurChar, int32_t iRotation);
+  FX_DWORD AppendChar_Arabic(CFX_Char* pCurChar, int32_t iRotation);
+  FX_DWORD AppendChar_Others(CFX_Char* pCurChar, int32_t iRotation);
+
+ protected:
+  FX_DWORD m_dwPolicies;
+  FX_BOOL m_bPagination;
+  IFX_ArabicChar* m_pArabicChar;
+  int32_t m_iLineWidth;
+  FX_DWORD m_dwLayoutStyles;
+  FX_BOOL m_bVertical;
+  FX_BOOL m_bArabicContext;
+  FX_BOOL m_bArabicShapes;
+  FX_BOOL m_bRTL;
+  FX_BOOL m_bSingleLine;
+  FX_BOOL m_bCombText;
+  int32_t m_iArabicContext;
+  int32_t m_iCurArabicContext;
+  IFX_Font* m_pFont;
+  int32_t m_iFontSize;
+  FX_BOOL m_bEquidistant;
+  int32_t m_iTabWidth;
+  FX_WCHAR m_wDefChar;
+  FX_WCHAR m_wParagBreakChar;
+  int32_t m_iDefChar;
+  int32_t m_iLineRotation;
+  int32_t m_iCharRotation;
+  int32_t m_iRotation;
+  int32_t m_iAlignment;
+  FX_DWORD m_dwContextCharStyles;
+  int32_t m_iCombWidth;
+  void* m_pUserData;
+  FX_DWORD m_dwCharType;
+  FX_BOOL m_bCurRTL;
+  int32_t m_iCurAlignment;
+  FX_BOOL m_bArabicNumber;
+  FX_BOOL m_bArabicComma;
+  CFX_TxtLine* m_pTxtLine1;
+  CFX_TxtLine* m_pTxtLine2;
+  CFX_TxtLine* m_pCurLine;
+  int32_t m_iReady;
+  int32_t m_iTolerance;
+  int32_t m_iHorScale;
+  int32_t m_iVerScale;
+  int32_t m_iCharSpace;
+  void SetBreakStatus();
+  int32_t GetLineRotation(FX_DWORD dwStyles) const;
+  CFX_TxtChar* GetLastChar(int32_t index, FX_BOOL bOmitChar = TRUE) const;
+  CFX_TxtLine* GetTxtLine(FX_BOOL bReady) const;
+  CFX_TxtPieceArray* GetTxtPieces(FX_BOOL bReady) const;
+  FX_DWORD GetUnifiedCharType(FX_DWORD dwType) const;
+  void ResetArabicContext();
+  void ResetContextCharStyles();
+  void EndBreak_UpdateArabicShapes();
+  FX_BOOL EndBreak_SplitLine(CFX_TxtLine* pNextLine,
+                             FX_BOOL bAllChars,
+                             FX_DWORD dwStatus);
+  void EndBreak_BidiLine(CFX_TPOArray& tpos, FX_DWORD dwStatus);
+  void EndBreak_Alignment(CFX_TPOArray& tpos,
+                          FX_BOOL bAllChars,
+                          FX_DWORD dwStatus);
+  int32_t GetBreakPos(CFX_TxtCharArray& ca,
+                      int32_t& iEndPos,
+                      FX_BOOL bAllChars = FALSE,
+                      FX_BOOL bOnlyBrk = FALSE);
+  void SplitTextLine(CFX_TxtLine* pCurLine,
+                     CFX_TxtLine* pNextLine,
+                     FX_BOOL bAllChars = FALSE);
+};
+
+}  // namespace
+
+extern const FX_LINEBREAKTYPE gs_FX_LineBreak_PairTable[64][32];
+IFX_TxtBreak* IFX_TxtBreak::Create(FX_DWORD dwPolicies) {
+  return new CFX_TxtBreak(dwPolicies);
+}
+CFX_TxtBreak::CFX_TxtBreak(FX_DWORD dwPolicies)
+    : m_dwPolicies(dwPolicies),
+      m_pArabicChar(NULL),
+      m_iLineWidth(2000000),
+      m_dwLayoutStyles(0),
+      m_bVertical(FALSE),
+      m_bArabicContext(FALSE),
+      m_bArabicShapes(FALSE),
+      m_bRTL(FALSE),
+      m_bSingleLine(FALSE),
+      m_bCombText(FALSE),
+      m_iArabicContext(1),
+      m_iCurArabicContext(1),
+      m_pFont(NULL),
+      m_iFontSize(240),
+      m_bEquidistant(TRUE),
+      m_iTabWidth(720000),
+      m_wDefChar(0xFEFF),
+      m_wParagBreakChar(L'\n'),
+      m_iDefChar(0),
+      m_iLineRotation(0),
+      m_iCharRotation(0),
+      m_iRotation(0),
+      m_iAlignment(FX_TXTLINEALIGNMENT_Left),
+      m_dwContextCharStyles(0),
+      m_iCombWidth(360000),
+      m_pUserData(NULL),
+      m_dwCharType(0),
+      m_bArabicNumber(FALSE),
+      m_bArabicComma(FALSE),
+      m_pCurLine(NULL),
+      m_iReady(0),
+      m_iTolerance(0),
+      m_iHorScale(100),
+      m_iVerScale(100),
+      m_iCharSpace(0) {
+  m_bPagination = (m_dwPolicies & FX_TXTBREAKPOLICY_Pagination) != 0;
+  m_pArabicChar = IFX_ArabicChar::Create();
+  if (m_bPagination) {
+    m_pTxtLine1 = new CFX_TxtLine(sizeof(CFX_Char));
+    m_pTxtLine2 = new CFX_TxtLine(sizeof(CFX_Char));
+  } else {
+    m_pTxtLine1 = new CFX_TxtLine(sizeof(CFX_TxtChar));
+    m_pTxtLine2 = new CFX_TxtLine(sizeof(CFX_TxtChar));
+  }
+  m_pCurLine = m_pTxtLine1;
+  ResetArabicContext();
+}
+CFX_TxtBreak::~CFX_TxtBreak() {
+  Reset();
+  delete m_pTxtLine1;
+  delete m_pTxtLine2;
+  m_pArabicChar->Release();
+}
+void CFX_TxtBreak::SetLineWidth(FX_FLOAT fLineWidth) {
+  m_iLineWidth = FXSYS_round(fLineWidth * 20000.0f);
+  FXSYS_assert(m_iLineWidth >= 20000);
+}
+void CFX_TxtBreak::SetLinePos(FX_FLOAT fLinePos) {
+  int32_t iLinePos = FXSYS_round(fLinePos * 20000.0f);
+  if (iLinePos < 0) {
+    iLinePos = 0;
+  }
+  if (iLinePos > m_iLineWidth) {
+    iLinePos = m_iLineWidth;
+  }
+  m_pCurLine->m_iStart = iLinePos;
+  m_pCurLine->m_iWidth += iLinePos;
+}
+void CFX_TxtBreak::SetLayoutStyles(FX_DWORD dwLayoutStyles) {
+  m_dwLayoutStyles = dwLayoutStyles;
+  m_bVertical = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_VerticalChars) != 0;
+  m_bArabicContext = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_ArabicContext) != 0;
+  m_bArabicShapes = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_ArabicShapes) != 0;
+  m_bRTL = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_RTLReadingOrder) != 0;
+  m_bSingleLine = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_SingleLine) != 0;
+  m_bCombText = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_CombText) != 0;
+  ResetArabicContext();
+  m_iLineRotation = GetLineRotation(m_dwLayoutStyles);
+  m_iRotation = m_iLineRotation + m_iCharRotation;
+  m_iRotation %= 4;
+}
+void CFX_TxtBreak::SetFont(IFX_Font* pFont) {
+  if (pFont == NULL) {
+    return;
+  }
+  if (m_pFont == pFont) {
+    return;
+  }
+  SetBreakStatus();
+  m_pFont = pFont;
+  m_iDefChar = 0;
+  if (m_wDefChar != 0xFEFF && m_pFont != NULL) {
+    m_pFont->GetCharWidth(m_wDefChar, m_iDefChar, FALSE);
+    m_iDefChar *= m_iFontSize;
+  }
+}
+void CFX_TxtBreak::SetFontSize(FX_FLOAT fFontSize) {
+  int32_t iFontSize = FXSYS_round(fFontSize * 20.0f);
+  if (m_iFontSize == iFontSize) {
+    return;
+  }
+  SetBreakStatus();
+  m_iFontSize = iFontSize;
+  m_iDefChar = 0;
+  if (m_wDefChar != 0xFEFF && m_pFont != NULL) {
+    m_pFont->GetCharWidth(m_wDefChar, m_iDefChar, FALSE);
+    m_iDefChar *= m_iFontSize;
+  }
+}
+void CFX_TxtBreak::SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant) {
+  m_iTabWidth = FXSYS_round(fTabWidth * 20000.0f);
+  if (m_iTabWidth < FX_TXTBREAK_MinimumTabWidth) {
+    m_iTabWidth = FX_TXTBREAK_MinimumTabWidth;
+  }
+  m_bEquidistant = bEquidistant;
+}
+void CFX_TxtBreak::SetDefaultChar(FX_WCHAR wch) {
+  m_wDefChar = wch;
+  m_iDefChar = 0;
+  if (m_wDefChar != 0xFEFF && m_pFont != NULL) {
+    m_pFont->GetCharWidth(m_wDefChar, m_iDefChar, FALSE);
+    if (m_iDefChar < 0) {
+      m_iDefChar = 0;
+    } else {
+      m_iDefChar *= m_iFontSize;
+    }
+  }
+}
+void CFX_TxtBreak::SetParagraphBreakChar(FX_WCHAR wch) {
+  if (wch != L'\r' && wch != L'\n') {
+    return;
+  }
+  m_wParagBreakChar = wch;
+}
+void CFX_TxtBreak::SetLineBreakTolerance(FX_FLOAT fTolerance) {
+  m_iTolerance = FXSYS_round(fTolerance * 20000.0f);
+}
+void CFX_TxtBreak::SetCharRotation(int32_t iCharRotation) {
+  if (iCharRotation < 0) {
+    iCharRotation += (-iCharRotation / 4 + 1) * 4;
+  } else if (iCharRotation > 3) {
+    iCharRotation -= (iCharRotation / 4) * 4;
+  }
+  if (m_iCharRotation == iCharRotation) {
+    return;
+  }
+  SetBreakStatus();
+  m_iCharRotation = iCharRotation;
+  m_iRotation = m_iLineRotation + m_iCharRotation;
+  m_iRotation %= 4;
+}
+void CFX_TxtBreak::SetAlignment(int32_t iAlignment) {
+  FXSYS_assert(iAlignment >= FX_TXTLINEALIGNMENT_Left &&
+               iAlignment <= FX_TXTLINEALIGNMENT_Distributed);
+  m_iAlignment = iAlignment;
+  ResetArabicContext();
+}
+void CFX_TxtBreak::ResetContextCharStyles() {
+  m_dwContextCharStyles = m_bArabicContext ? m_iCurAlignment : m_iAlignment;
+  if (m_bArabicNumber) {
+    m_dwContextCharStyles |= FX_TXTCHARSTYLE_ArabicNumber;
+  }
+  if (m_bArabicComma) {
+    m_dwContextCharStyles |= FX_TXTCHARSTYLE_ArabicComma;
+  }
+  if ((m_bArabicContext && m_bCurRTL) || (!m_bArabicContext && m_bRTL)) {
+    m_dwContextCharStyles |= FX_TXTCHARSTYLE_RTLReadingOrder;
+  }
+  m_dwContextCharStyles |= (m_iArabicContext << 8);
+}
+FX_DWORD CFX_TxtBreak::GetContextCharStyles() const {
+  return m_dwContextCharStyles;
+}
+void CFX_TxtBreak::SetContextCharStyles(FX_DWORD dwCharStyles) {
+  m_iCurAlignment = dwCharStyles & 0x0F;
+  m_bArabicNumber = (dwCharStyles & FX_TXTCHARSTYLE_ArabicNumber) != 0;
+  m_bArabicComma = (dwCharStyles & FX_TXTCHARSTYLE_ArabicComma) != 0;
+  m_bCurRTL = (dwCharStyles & FX_TXTCHARSTYLE_RTLReadingOrder) != 0;
+  m_iCurArabicContext = m_iArabicContext = ((dwCharStyles & 0x0300) >> 8);
+  ResetContextCharStyles();
+}
+void CFX_TxtBreak::SetCombWidth(FX_FLOAT fCombWidth) {
+  m_iCombWidth = FXSYS_round(fCombWidth * 20000.0f);
+}
+void CFX_TxtBreak::SetUserData(void* pUserData) {
+  if (m_pUserData == pUserData) {
+    return;
+  }
+  SetBreakStatus();
+  m_pUserData = pUserData;
+}
+void CFX_TxtBreak::SetBreakStatus() {
+  if (m_bPagination) {
+    return;
+  }
+  int32_t iCount = m_pCurLine->CountChars();
+  if (iCount < 1) {
+    return;
+  }
+  CFX_TxtChar* pTC = (CFX_TxtChar*)m_pCurLine->GetCharPtr(iCount - 1);
+  if (pTC->m_dwStatus == 0) {
+    pTC->m_dwStatus = FX_TXTBREAK_PieceBreak;
+  }
+}
+void CFX_TxtBreak::SetHorizontalScale(int32_t iScale) {
+  if (iScale < 0) {
+    iScale = 0;
+  }
+  if (iScale == m_iHorScale) {
+    return;
+  }
+  SetBreakStatus();
+  m_iHorScale = iScale;
+}
+void CFX_TxtBreak::SetVerticalScale(int32_t iScale) {
+  if (iScale < 0) {
+    iScale = 0;
+  }
+  if (iScale == m_iHorScale) {
+    return;
+  }
+  SetBreakStatus();
+  m_iVerScale = iScale;
+}
+void CFX_TxtBreak::SetCharSpace(FX_FLOAT fCharSpace) {
+  m_iCharSpace = FXSYS_round(fCharSpace * 20000.0f);
+}
+static const int32_t gs_FX_TxtLineRotations[8] = {0, 3, 1, 0, 2, 1, 3, 2};
+int32_t CFX_TxtBreak::GetLineRotation(FX_DWORD dwStyles) const {
+  return gs_FX_TxtLineRotations[(dwStyles & 0x0E) >> 1];
+}
+CFX_TxtChar* CFX_TxtBreak::GetLastChar(int32_t index, FX_BOOL bOmitChar) const {
+  CFX_TxtCharArray& ca = *m_pCurLine->m_pLineChars;
+  int32_t iCount = ca.GetSize();
+  if (index < 0 || index >= iCount) {
+    return NULL;
+  }
+  CFX_TxtChar* pTC;
+  int32_t iStart = iCount - 1;
+  while (iStart > -1) {
+    pTC = ca.GetDataPtr(iStart--);
+    if (bOmitChar && pTC->GetCharType() == FX_CHARTYPE_Combination) {
+      continue;
+    }
+    if (--index < 0) {
+      return pTC;
+    }
+  }
+  return NULL;
+}
+CFX_TxtLine* CFX_TxtBreak::GetTxtLine(FX_BOOL bReady) const {
+  if (!bReady) {
+    return m_pCurLine;
+  }
+  if (m_iReady == 1) {
+    return m_pTxtLine1;
+  } else if (m_iReady == 2) {
+    return m_pTxtLine2;
+  } else {
+    return NULL;
+  }
+}
+CFX_TxtPieceArray* CFX_TxtBreak::GetTxtPieces(FX_BOOL bReady) const {
+  CFX_TxtLine* pTxtLine = GetTxtLine(bReady);
+  if (pTxtLine == NULL) {
+    return NULL;
+  }
+  return pTxtLine->m_pLinePieces;
+}
+inline FX_DWORD CFX_TxtBreak::GetUnifiedCharType(FX_DWORD dwType) const {
+  return dwType >= FX_CHARTYPE_ArabicAlef ? FX_CHARTYPE_Arabic : dwType;
+}
+void CFX_TxtBreak::ResetArabicContext() {
+  if (m_bArabicContext) {
+    m_bCurRTL = m_iCurArabicContext > 1;
+    m_iCurAlignment = m_iCurArabicContext > 1 ? FX_TXTLINEALIGNMENT_Right
+                                              : FX_TXTLINEALIGNMENT_Left;
+    m_iCurAlignment |= (m_iAlignment & FX_TXTLINEALIGNMENT_HigherMask);
+    m_bArabicNumber = m_iArabicContext >= 1 && m_bArabicShapes;
+  } else {
+    if (m_bPagination) {
+      m_bCurRTL = FALSE;
+      m_iCurAlignment = 0;
+    } else {
+      m_bCurRTL = m_bRTL;
+      m_iCurAlignment = m_iAlignment;
+    }
+    if (m_bRTL) {
+      m_bArabicNumber = m_iArabicContext >= 1;
+    } else {
+      m_bArabicNumber = m_iArabicContext > 1;
+    }
+    m_bArabicNumber = m_bArabicNumber && m_bArabicShapes;
+  }
+  m_bArabicComma = m_bArabicNumber;
+  ResetContextCharStyles();
+}
+void CFX_TxtBreak::AppendChar_PageLoad(CFX_Char* pCurChar, FX_DWORD dwProps) {
+  if (!m_bPagination) {
+    ((CFX_TxtChar*)pCurChar)->m_dwStatus = 0;
+    ((CFX_TxtChar*)pCurChar)->m_pUserData = m_pUserData;
+  }
+  if (m_bArabicContext || m_bArabicShapes) {
+    int32_t iBidiCls = (dwProps & FX_BIDICLASSBITSMASK) >> FX_BIDICLASSBITS;
+    int32_t iArabicContext =
+        (iBidiCls == FX_BIDICLASS_R || iBidiCls == FX_BIDICLASS_AL)
+            ? 2
+            : ((iBidiCls == FX_BIDICLASS_L || iBidiCls == FX_BIDICLASS_S) ? 0
+                                                                          : 1);
+    if (iArabicContext != m_iArabicContext && iArabicContext != 1) {
+      m_iArabicContext = iArabicContext;
+      if (m_iCurArabicContext == 1) {
+        m_iCurArabicContext = iArabicContext;
+      }
+      ResetArabicContext();
+      if (!m_bPagination) {
+        CFX_TxtChar* pLastChar = (CFX_TxtChar*)GetLastChar(1, FALSE);
+        if (pLastChar != NULL && pLastChar->m_dwStatus < 1) {
+          pLastChar->m_dwStatus = FX_TXTBREAK_PieceBreak;
+        }
+      }
+    }
+  }
+  pCurChar->m_dwCharStyles = m_dwContextCharStyles;
+}
+FX_DWORD CFX_TxtBreak::AppendChar_Combination(CFX_Char* pCurChar,
+                                              int32_t iRotation) {
+  FXSYS_assert(pCurChar != NULL);
+  FX_WCHAR wch = pCurChar->m_wCharCode;
+  FX_WCHAR wForm;
+  int32_t iCharWidth = 0;
+  CFX_Char* pLastChar;
+  pCurChar->m_iCharWidth = -1;
+  if (m_bCombText) {
+    iCharWidth = m_iCombWidth;
+  } else {
+    if (m_bVertical != FX_IsOdd(iRotation)) {
+      iCharWidth = 1000;
+    } else {
+      wForm = wch;
+      if (!m_bPagination) {
+        pLastChar = GetLastChar(0, FALSE);
+        if (pLastChar != NULL &&
+            (((CFX_TxtChar*)pLastChar)->m_dwCharStyles &
+             FX_TXTCHARSTYLE_ArabicShadda) == 0) {
+          FX_BOOL bShadda = FALSE;
+          if (wch == 0x0651) {
+            FX_WCHAR wLast = pLastChar->m_wCharCode;
+            if (wLast >= 0x064C && wLast <= 0x0650) {
+              wForm = FX_GetArabicFromShaddaTable(wLast);
+              bShadda = TRUE;
+            }
+          } else if (wch >= 0x064C && wch <= 0x0650) {
+            if (pLastChar->m_wCharCode == 0x0651) {
+              wForm = FX_GetArabicFromShaddaTable(wch);
+              bShadda = TRUE;
+            }
+          }
+          if (bShadda) {
+            ((CFX_TxtChar*)pLastChar)->m_dwCharStyles |=
+                FX_TXTCHARSTYLE_ArabicShadda;
+            ((CFX_TxtChar*)pLastChar)->m_iCharWidth = 0;
+            ((CFX_TxtChar*)pCurChar)->m_dwCharStyles |=
+                FX_TXTCHARSTYLE_ArabicShadda;
+          }
+        }
+      }
+      if (!m_pFont->GetCharWidth(wForm, iCharWidth, FALSE)) {
+        iCharWidth = 0;
+      }
+    }
+    iCharWidth *= m_iFontSize;
+    iCharWidth = iCharWidth * m_iHorScale / 100;
+  }
+  pCurChar->m_iCharWidth = -iCharWidth;
+  return FX_TXTBREAK_None;
+}
+FX_DWORD CFX_TxtBreak::AppendChar_Tab(CFX_Char* pCurChar, int32_t iRotation) {
+  m_dwCharType = FX_CHARTYPE_Tab;
+  if ((m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_ExpandTab) == 0) {
+    return FX_TXTBREAK_None;
+  }
+  int32_t& iLineWidth = m_pCurLine->m_iWidth;
+  int32_t iCharWidth;
+  if (m_bCombText) {
+    iCharWidth = m_iCombWidth;
+  } else {
+    if (m_bEquidistant) {
+      iCharWidth = iLineWidth;
+      iCharWidth = m_iTabWidth * (iCharWidth / m_iTabWidth + 1) - iCharWidth;
+      if (iCharWidth < FX_TXTBREAK_MinimumTabWidth) {
+        iCharWidth += m_iTabWidth;
+      }
+    } else {
+      iCharWidth = m_iTabWidth;
+    }
+  }
+  pCurChar->m_iCharWidth = iCharWidth;
+  iLineWidth += iCharWidth;
+  if (!m_bSingleLine && iLineWidth >= m_iLineWidth + m_iTolerance) {
+    return EndBreak(FX_TXTBREAK_LineBreak);
+  }
+  return FX_TXTBREAK_None;
+}
+FX_DWORD CFX_TxtBreak::AppendChar_Control(CFX_Char* pCurChar,
+                                          int32_t iRotation) {
+  m_dwCharType = FX_CHARTYPE_Control;
+  FX_DWORD dwRet = FX_TXTBREAK_None;
+  if (!m_bSingleLine) {
+    FX_WCHAR wch = pCurChar->m_wCharCode;
+    switch (wch) {
+      case L'\v':
+      case 0x2028:
+        dwRet = FX_TXTBREAK_LineBreak;
+        break;
+      case L'\f':
+        dwRet = FX_TXTBREAK_PageBreak;
+        break;
+      case 0x2029:
+        dwRet = FX_TXTBREAK_ParagraphBreak;
+        break;
+      default:
+        if (wch == m_wParagBreakChar) {
+          dwRet = FX_TXTBREAK_ParagraphBreak;
+        }
+        break;
+    }
+    if (dwRet != FX_TXTBREAK_None) {
+      dwRet = EndBreak(dwRet);
+    }
+  }
+  return dwRet;
+}
+FX_DWORD CFX_TxtBreak::AppendChar_Arabic(CFX_Char* pCurChar,
+                                         int32_t iRotation) {
+  FX_DWORD dwType = (pCurChar->m_dwCharProps & FX_CHARTYPEBITSMASK);
+  int32_t& iLineWidth = m_pCurLine->m_iWidth;
+  FX_WCHAR wForm;
+  int32_t iCharWidth = 0;
+  CFX_Char* pLastChar = NULL;
+  FX_BOOL bAlef = FALSE;
+  if (!m_bCombText && m_dwCharType >= FX_CHARTYPE_ArabicAlef &&
+      m_dwCharType <= FX_CHARTYPE_ArabicDistortion) {
+    pLastChar = GetLastChar(1);
+    if (pLastChar != NULL) {
+      iCharWidth = pLastChar->m_iCharWidth;
+      if (iCharWidth > 0) {
+        iLineWidth -= iCharWidth;
+      }
+      CFX_Char* pPrevChar = GetLastChar(2);
+      wForm = m_pArabicChar->GetFormChar(pLastChar, pPrevChar, pCurChar);
+      bAlef = (wForm == 0xFEFF &&
+               pLastChar->GetCharType() == FX_CHARTYPE_ArabicAlef);
+      int32_t iLastRotation = pLastChar->m_nRotation + m_iLineRotation;
+      if (m_bVertical && (pLastChar->m_dwCharProps & 0x8000) != 0) {
+        iLastRotation++;
+      }
+      if (m_bVertical != FX_IsOdd(iLastRotation)) {
+        iCharWidth = 1000;
+      } else {
+        m_pFont->GetCharWidth(wForm, iCharWidth, FALSE);
+      }
+      if (wForm == 0xFEFF) {
+        iCharWidth = m_iDefChar;
+      }
+      iCharWidth *= m_iFontSize;
+      iCharWidth = iCharWidth * m_iHorScale / 100;
+      pLastChar->m_iCharWidth = iCharWidth;
+      iLineWidth += iCharWidth;
+      iCharWidth = 0;
+    }
+  }
+  m_dwCharType = dwType;
+  wForm = m_pArabicChar->GetFormChar(pCurChar, bAlef ? NULL : pLastChar, NULL);
+  if (m_bCombText) {
+    iCharWidth = m_iCombWidth;
+  } else {
+    if (m_bVertical != FX_IsOdd(iRotation)) {
+      iCharWidth = 1000;
+    } else {
+      m_pFont->GetCharWidth(wForm, iCharWidth, FALSE);
+    }
+    if (wForm == 0xFEFF) {
+      iCharWidth = m_iDefChar;
+    }
+    iCharWidth *= m_iFontSize;
+    iCharWidth = iCharWidth * m_iHorScale / 100;
+  }
+  pCurChar->m_iCharWidth = iCharWidth;
+  iLineWidth += iCharWidth;
+  m_pCurLine->m_iArabicChars++;
+  if (!m_bSingleLine && iLineWidth > m_iLineWidth + m_iTolerance) {
+    return EndBreak(FX_TXTBREAK_LineBreak);
+  }
+  return FX_TXTBREAK_None;
+}
+FX_DWORD CFX_TxtBreak::AppendChar_Others(CFX_Char* pCurChar,
+                                         int32_t iRotation) {
+  FX_DWORD dwProps = pCurChar->m_dwCharProps;
+  FX_DWORD dwType = (dwProps & FX_CHARTYPEBITSMASK);
+  int32_t& iLineWidth = m_pCurLine->m_iWidth;
+  int32_t iCharWidth = 0;
+  m_dwCharType = dwType;
+  FX_WCHAR wch = pCurChar->m_wCharCode;
+  FX_WCHAR wForm = wch;
+  if (dwType == FX_CHARTYPE_Numeric) {
+    if (m_bArabicNumber) {
+      wForm = wch + 0x0630;
+      pCurChar->m_dwCharStyles |= FX_TXTCHARSTYLE_ArabicIndic;
+    }
+  } else if (wch == L',') {
+    if (m_bArabicShapes && m_iCurArabicContext > 0) {
+      wForm = 0x060C;
+      pCurChar->m_dwCharStyles |= FX_TXTCHARSTYLE_ArabicComma;
+    }
+  } else if (m_bCurRTL || m_bVertical) {
+    wForm = FX_GetMirrorChar(wch, dwProps, m_bCurRTL, m_bVertical);
+  }
+  if (m_bCombText) {
+    iCharWidth = m_iCombWidth;
+  } else {
+    if (m_bVertical != FX_IsOdd(iRotation)) {
+      iCharWidth = 1000;
+    } else if (!m_pFont->GetCharWidth(wForm, iCharWidth, FALSE)) {
+      iCharWidth = m_iDefChar;
+    }
+    iCharWidth *= m_iFontSize;
+    iCharWidth = iCharWidth * m_iHorScale / 100;
+  }
+  iCharWidth += m_iCharSpace;
+  pCurChar->m_iCharWidth = iCharWidth;
+  iLineWidth += iCharWidth;
+  FX_BOOL bBreak = (dwType != FX_CHARTYPE_Space ||
+                    (m_dwPolicies & FX_TXTBREAKPOLICY_SpaceBreak) != 0);
+  if (!m_bSingleLine && bBreak && iLineWidth > m_iLineWidth + m_iTolerance) {
+    return EndBreak(FX_TXTBREAK_LineBreak);
+  }
+  return FX_TXTBREAK_None;
+}
+typedef FX_DWORD (CFX_TxtBreak::*FX_TxtBreak_LPFAppendChar)(CFX_Char* pCurChar,
+                                                            int32_t iRotation);
+static const FX_TxtBreak_LPFAppendChar g_FX_TxtBreak_lpfAppendChar[16] = {
+    &CFX_TxtBreak::AppendChar_Others,      &CFX_TxtBreak::AppendChar_Tab,
+    &CFX_TxtBreak::AppendChar_Others,      &CFX_TxtBreak::AppendChar_Control,
+    &CFX_TxtBreak::AppendChar_Combination, &CFX_TxtBreak::AppendChar_Others,
+    &CFX_TxtBreak::AppendChar_Others,      &CFX_TxtBreak::AppendChar_Arabic,
+    &CFX_TxtBreak::AppendChar_Arabic,      &CFX_TxtBreak::AppendChar_Arabic,
+    &CFX_TxtBreak::AppendChar_Arabic,      &CFX_TxtBreak::AppendChar_Arabic,
+    &CFX_TxtBreak::AppendChar_Arabic,      &CFX_TxtBreak::AppendChar_Others,
+    &CFX_TxtBreak::AppendChar_Others,      &CFX_TxtBreak::AppendChar_Others,
+};
+FX_DWORD CFX_TxtBreak::AppendChar(FX_WCHAR wch) {
+  FX_DWORD dwProps = kTextLayoutCodeProperties[(FX_WORD)wch];
+  FX_DWORD dwType = (dwProps & FX_CHARTYPEBITSMASK);
+  CFX_TxtChar* pCurChar = m_pCurLine->m_pLineChars->AddSpace();
+  pCurChar->m_wCharCode = (FX_WORD)wch;
+  pCurChar->m_nRotation = m_iCharRotation;
+  pCurChar->m_dwCharProps = dwProps;
+  pCurChar->m_dwCharStyles = 0;
+  pCurChar->m_iCharWidth = 0;
+  pCurChar->m_iHorizontalScale = m_iHorScale;
+  pCurChar->m_iVertialScale = m_iVerScale;
+  pCurChar->m_dwStatus = 0;
+  pCurChar->m_iBidiClass = 0;
+  pCurChar->m_iBidiLevel = 0;
+  pCurChar->m_iBidiPos = 0;
+  pCurChar->m_iBidiOrder = 0;
+  pCurChar->m_pUserData = NULL;
+  AppendChar_PageLoad(pCurChar, dwProps);
+  FX_DWORD dwRet1 = FX_TXTBREAK_None;
+  if (dwType != FX_CHARTYPE_Combination &&
+      GetUnifiedCharType(m_dwCharType) != GetUnifiedCharType(dwType)) {
+    if (m_dwCharType > 0 &&
+        m_pCurLine->m_iWidth > m_iLineWidth + m_iTolerance && !m_bSingleLine) {
+      if (m_dwCharType != FX_CHARTYPE_Space || dwType != FX_CHARTYPE_Control) {
+        dwRet1 = EndBreak(FX_TXTBREAK_LineBreak);
+        int32_t iCount = m_pCurLine->CountChars();
+        if (iCount > 0) {
+          pCurChar = m_pCurLine->m_pLineChars->GetDataPtr(iCount - 1);
+        }
+      }
+    }
+  }
+  int32_t iRotation = m_iRotation;
+  if (m_bVertical && (dwProps & 0x8000) != 0) {
+    iRotation = (iRotation + 1) % 4;
+  }
+  FX_DWORD dwRet2 =
+      (this->*g_FX_TxtBreak_lpfAppendChar[dwType >> FX_CHARTYPEBITS])(
+          pCurChar, iRotation);
+  return std::max(dwRet1, dwRet2);
+}
+void CFX_TxtBreak::EndBreak_UpdateArabicShapes() {
+  FXSYS_assert(m_bArabicShapes);
+  int32_t iCount = m_pCurLine->CountChars();
+  if (iCount < 2) {
+    return;
+  }
+  int32_t& iLineWidth = m_pCurLine->m_iWidth;
+  CFX_Char *pCur, *pNext;
+  pCur = m_pCurLine->GetCharPtr(0);
+  FX_BOOL bPrevNum = (pCur->m_dwCharStyles & FX_TXTCHARSTYLE_ArabicIndic) != 0;
+  pCur = m_pCurLine->GetCharPtr(1);
+  FX_WCHAR wch, wForm;
+  FX_BOOL bNextNum;
+  int32_t i = 1, iCharWidth, iRotation;
+  do {
+    i++;
+    if (i < iCount) {
+      pNext = m_pCurLine->GetCharPtr(i);
+      bNextNum = (pNext->m_dwCharStyles & FX_TXTCHARSTYLE_ArabicIndic) != 0;
+    } else {
+      pNext = NULL;
+      bNextNum = FALSE;
+    }
+    wch = pCur->m_wCharCode;
+    if (wch == L'.') {
+      if (bPrevNum && bNextNum) {
+        iRotation = m_iRotation;
+        if (m_bVertical && (pCur->m_dwCharProps & 0x8000) != 0) {
+          iRotation = ((iRotation + 1) & 0x03);
+        }
+        wForm = wch == L'.' ? 0x066B : 0x066C;
+        iLineWidth -= pCur->m_iCharWidth;
+        if (m_bCombText) {
+          iCharWidth = m_iCombWidth;
+        } else {
+          if (m_bVertical != FX_IsOdd(iRotation)) {
+            iCharWidth = 1000;
+          } else if (!m_pFont->GetCharWidth(wForm, iCharWidth, FALSE)) {
+            iCharWidth = m_iDefChar;
+          }
+          iCharWidth *= m_iFontSize;
+          iCharWidth = iCharWidth * m_iHorScale / 100;
+        }
+        pCur->m_iCharWidth = iCharWidth;
+        iLineWidth += iCharWidth;
+      }
+    }
+    bPrevNum = (pCur->m_dwCharStyles & FX_TXTCHARSTYLE_ArabicIndic) != 0;
+    pCur = pNext;
+  } while (i < iCount);
+}
+FX_BOOL CFX_TxtBreak::EndBreak_SplitLine(CFX_TxtLine* pNextLine,
+                                         FX_BOOL bAllChars,
+                                         FX_DWORD dwStatus) {
+  int32_t iCount = m_pCurLine->CountChars();
+  FX_BOOL bDone = FALSE;
+  CFX_Char* pTC;
+  if (!m_bSingleLine && m_pCurLine->m_iWidth > m_iLineWidth + m_iTolerance) {
+    pTC = m_pCurLine->GetCharPtr(iCount - 1);
+    switch (pTC->GetCharType()) {
+      case FX_CHARTYPE_Tab:
+      case FX_CHARTYPE_Control:
+        break;
+      case FX_CHARTYPE_Space:
+        if ((m_dwPolicies & FX_TXTBREAKPOLICY_SpaceBreak) != 0) {
+          SplitTextLine(m_pCurLine, pNextLine, !m_bPagination && bAllChars);
+          bDone = TRUE;
+        }
+        break;
+      default:
+        SplitTextLine(m_pCurLine, pNextLine, !m_bPagination && bAllChars);
+        bDone = TRUE;
+        break;
+    }
+  }
+  iCount = m_pCurLine->CountChars();
+  CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces;
+  CFX_TxtPiece tp;
+  if (m_bPagination) {
+    tp.m_dwStatus = dwStatus;
+    tp.m_iStartPos = m_pCurLine->m_iStart;
+    tp.m_iWidth = m_pCurLine->m_iWidth;
+    tp.m_iStartChar = 0;
+    tp.m_iChars = iCount;
+    tp.m_pChars = m_pCurLine->m_pLineChars;
+    tp.m_pUserData = m_pUserData;
+    pTC = m_pCurLine->GetCharPtr(0);
+    tp.m_dwCharStyles = pTC->m_dwCharStyles;
+    tp.m_iHorizontalScale = pTC->m_iHorizontalScale;
+    tp.m_iVerticalScale = pTC->m_iVertialScale;
+    pCurPieces->Add(tp);
+    m_pCurLine = pNextLine;
+    m_dwCharType = 0;
+    return TRUE;
+  }
+  if (bAllChars && !bDone) {
+    int32_t iEndPos = m_pCurLine->m_iWidth;
+    GetBreakPos(*m_pCurLine->m_pLineChars, iEndPos, bAllChars, TRUE);
+  }
+  return FALSE;
+}
+void CFX_TxtBreak::EndBreak_BidiLine(CFX_TPOArray& tpos, FX_DWORD dwStatus) {
+  CFX_TxtPiece tp;
+  FX_TPO tpo;
+  CFX_TxtChar* pTC;
+  int32_t i, j;
+  CFX_TxtCharArray& chars = *m_pCurLine->m_pLineChars;
+  int32_t iCount = m_pCurLine->CountChars();
+  FX_BOOL bDone = (m_pCurLine->m_iArabicChars > 0 || m_bCurRTL);
+  if (!m_bPagination && bDone) {
+    int32_t iBidiNum = 0;
+    for (i = 0; i < iCount; i++) {
+      pTC = chars.GetDataPtr(i);
+      pTC->m_iBidiPos = i;
+      if (pTC->GetCharType() != FX_CHARTYPE_Control) {
+        iBidiNum = i;
+      }
+      if (i == 0) {
+        pTC->m_iBidiLevel = 1;
+      }
+    }
+    FX_BidiLine(chars, iBidiNum + 1, m_bCurRTL ? 1 : 0);
+  }
+  CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces;
+  if (!m_bPagination &&
+      (bDone || (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_MutipleFormat) != 0)) {
+    tp.m_dwStatus = FX_TXTBREAK_PieceBreak;
+    tp.m_iStartPos = m_pCurLine->m_iStart;
+    tp.m_pChars = m_pCurLine->m_pLineChars;
+    int32_t iBidiLevel = -1, iCharWidth;
+    i = 0, j = -1;
+    while (i < iCount) {
+      pTC = chars.GetDataPtr(i);
+      if (iBidiLevel < 0) {
+        iBidiLevel = pTC->m_iBidiLevel;
+        tp.m_iWidth = 0;
+        tp.m_iBidiLevel = iBidiLevel;
+        tp.m_iBidiPos = pTC->m_iBidiOrder;
+        tp.m_dwCharStyles = pTC->m_dwCharStyles;
+        tp.m_pUserData = pTC->m_pUserData;
+        tp.m_iHorizontalScale = pTC->m_iHorizontalScale;
+        tp.m_iVerticalScale = pTC->m_iVertialScale;
+        tp.m_dwStatus = FX_TXTBREAK_PieceBreak;
+      }
+      if (iBidiLevel != pTC->m_iBidiLevel || pTC->m_dwStatus != 0) {
+        if (iBidiLevel == pTC->m_iBidiLevel) {
+          tp.m_dwStatus = pTC->m_dwStatus;
+          iCharWidth = pTC->m_iCharWidth;
+          if (iCharWidth > 0) {
+            tp.m_iWidth += iCharWidth;
+          }
+          i++;
+        }
+        tp.m_iChars = i - tp.m_iStartChar;
+        pCurPieces->Add(tp);
+        tp.m_iStartPos += tp.m_iWidth;
+        tp.m_iStartChar = i;
+        tpo.index = ++j;
+        tpo.pos = tp.m_iBidiPos;
+        tpos.Add(tpo);
+        iBidiLevel = -1;
+      } else {
+        iCharWidth = pTC->m_iCharWidth;
+        if (iCharWidth > 0) {
+          tp.m_iWidth += iCharWidth;
+        }
+        i++;
+      }
+    }
+    if (i > tp.m_iStartChar) {
+      tp.m_dwStatus = dwStatus;
+      tp.m_iChars = i - tp.m_iStartChar;
+      pCurPieces->Add(tp);
+      tpo.index = ++j;
+      tpo.pos = tp.m_iBidiPos;
+      tpos.Add(tpo);
+    }
+    if (j > -1) {
+      if (j > 0) {
+        FX_TEXTLAYOUT_PieceSort(tpos, 0, j);
+        int32_t iStartPos = 0;
+        for (i = 0; i <= j; i++) {
+          tpo = tpos.GetAt(i);
+          CFX_TxtPiece& ttp = pCurPieces->GetAt(tpo.index);
+          ttp.m_iStartPos = iStartPos;
+          iStartPos += ttp.m_iWidth;
+        }
+      }
+      CFX_TxtPiece& ttp = pCurPieces->GetAt(j);
+      ttp.m_dwStatus = dwStatus;
+    }
+  } else {
+    tp.m_dwStatus = dwStatus;
+    tp.m_iStartPos = m_pCurLine->m_iStart;
+    tp.m_iWidth = m_pCurLine->m_iWidth;
+    tp.m_iStartChar = 0;
+    tp.m_iChars = iCount;
+    tp.m_pChars = m_pCurLine->m_pLineChars;
+    tp.m_pUserData = m_pUserData;
+    pTC = chars.GetDataPtr(0);
+    tp.m_dwCharStyles = pTC->m_dwCharStyles;
+    tp.m_iHorizontalScale = pTC->m_iHorizontalScale;
+    tp.m_iVerticalScale = pTC->m_iVertialScale;
+    pCurPieces->Add(tp);
+    tpo.index = 0;
+    tpo.pos = 0;
+    tpos.Add(tpo);
+  }
+}
+void CFX_TxtBreak::EndBreak_Alignment(CFX_TPOArray& tpos,
+                                      FX_BOOL bAllChars,
+                                      FX_DWORD dwStatus) {
+  int32_t iNetWidth = m_pCurLine->m_iWidth, iGapChars = 0, iCharWidth;
+  CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces;
+  int32_t i, j, iCount = pCurPieces->GetSize();
+  FX_BOOL bFind = FALSE;
+  FX_TPO tpo;
+  CFX_TxtChar* pTC;
+  FX_DWORD dwCharType;
+  for (i = iCount - 1; i > -1; i--) {
+    tpo = tpos.GetAt(i);
+    CFX_TxtPiece& ttp = pCurPieces->GetAt(tpo.index);
+    if (!bFind) {
+      iNetWidth = ttp.GetEndPos();
+    }
+    FX_BOOL bArabic = FX_IsOdd(ttp.m_iBidiLevel);
+    j = bArabic ? 0 : ttp.m_iChars - 1;
+    while (j > -1 && j < ttp.m_iChars) {
+      pTC = ttp.GetCharPtr(j);
+      if (pTC->m_nBreakType == FX_LBT_DIRECT_BRK) {
+        iGapChars++;
+      }
+      if (!bFind || !bAllChars) {
+        dwCharType = pTC->GetCharType();
+        if (dwCharType == FX_CHARTYPE_Space ||
+            dwCharType == FX_CHARTYPE_Control) {
+          if (!bFind) {
+            iCharWidth = pTC->m_iCharWidth;
+            if (bAllChars && iCharWidth > 0) {
+              iNetWidth -= iCharWidth;
+            }
+          }
+        } else {
+          bFind = TRUE;
+          if (!bAllChars) {
+            break;
+          }
+        }
+      }
+      j += bArabic ? 1 : -1;
+    }
+    if (!bAllChars && bFind) {
+      break;
+    }
+  }
+  int32_t iOffset = m_iLineWidth - iNetWidth;
+  int32_t iLowerAlignment = (m_iCurAlignment & FX_TXTLINEALIGNMENT_LowerMask);
+  int32_t iHigherAlignment = (m_iCurAlignment & FX_TXTLINEALIGNMENT_HigherMask);
+  if (iGapChars > 0 && (iHigherAlignment == FX_TXTLINEALIGNMENT_Distributed ||
+                        (iHigherAlignment == FX_TXTLINEALIGNMENT_Justified &&
+                         dwStatus != FX_TXTBREAK_ParagraphBreak))) {
+    int32_t iStart = -1;
+    for (i = 0; i < iCount; i++) {
+      tpo = tpos.GetAt(i);
+      CFX_TxtPiece& ttp = pCurPieces->GetAt(tpo.index);
+      if (iStart < -1) {
+        iStart = ttp.m_iStartPos;
+      } else {
+        ttp.m_iStartPos = iStart;
+      }
+      int32_t k;
+      for (j = 0; j < ttp.m_iChars; j++) {
+        pTC = ttp.GetCharPtr(j);
+        if (pTC->m_nBreakType != FX_LBT_DIRECT_BRK || pTC->m_iCharWidth < 0) {
+          continue;
+        }
+        k = iOffset / iGapChars;
+        pTC->m_iCharWidth += k;
+        ttp.m_iWidth += k;
+        iOffset -= k;
+        iGapChars--;
+        if (iGapChars < 1) {
+          break;
+        }
+      }
+      iStart += ttp.m_iWidth;
+    }
+  } else if (iLowerAlignment > FX_TXTLINEALIGNMENT_Left) {
+    if (iLowerAlignment == FX_TXTLINEALIGNMENT_Center) {
+      iOffset /= 2;
+    }
+    if (iOffset > 0) {
+      for (i = 0; i < iCount; i++) {
+        CFX_TxtPiece& ttp = pCurPieces->GetAt(i);
+        ttp.m_iStartPos += iOffset;
+      }
+    }
+  }
+}
+FX_DWORD CFX_TxtBreak::EndBreak(FX_DWORD dwStatus) {
+  FXSYS_assert(dwStatus >= FX_TXTBREAK_PieceBreak &&
+               dwStatus <= FX_TXTBREAK_PageBreak);
+  CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces;
+  int32_t iCount = pCurPieces->GetSize();
+  if (iCount > 0) {
+    CFX_TxtPiece* pLastPiece = pCurPieces->GetPtrAt(--iCount);
+    if (dwStatus > FX_TXTBREAK_PieceBreak) {
+      pLastPiece->m_dwStatus = dwStatus;
+    } else {
+      dwStatus = pLastPiece->m_dwStatus;
+    }
+    return dwStatus;
+  } else {
+    CFX_TxtLine* pLastLine = GetTxtLine(TRUE);
+    if (pLastLine != NULL) {
+      pCurPieces = pLastLine->m_pLinePieces;
+      iCount = pCurPieces->GetSize();
+      if (iCount-- > 0) {
+        CFX_TxtPiece* pLastPiece = pCurPieces->GetPtrAt(iCount);
+        if (dwStatus > FX_TXTBREAK_PieceBreak) {
+          pLastPiece->m_dwStatus = dwStatus;
+        } else {
+          dwStatus = pLastPiece->m_dwStatus;
+        }
+        return dwStatus;
+      }
+      return FX_TXTBREAK_None;
+    }
+    iCount = m_pCurLine->CountChars();
+    if (iCount < 1) {
+      return FX_TXTBREAK_None;
+    }
+    if (!m_bPagination) {
+      CFX_TxtChar* pTC = m_pCurLine->GetCharPtr(iCount - 1);
+      pTC->m_dwStatus = dwStatus;
+    }
+    if (dwStatus <= FX_TXTBREAK_PieceBreak) {
+      return dwStatus;
+    }
+  }
+  m_iReady = (m_pCurLine == m_pTxtLine1) ? 1 : 2;
+  CFX_TxtLine* pNextLine =
+      (m_pCurLine == m_pTxtLine1) ? m_pTxtLine2 : m_pTxtLine1;
+  FX_BOOL bAllChars = (m_iCurAlignment > FX_TXTLINEALIGNMENT_Right);
+  CFX_TPOArray tpos;
+  CFX_Char* pTC;
+  if (m_bArabicShapes) {
+    EndBreak_UpdateArabicShapes();
+  }
+  if (EndBreak_SplitLine(pNextLine, bAllChars, dwStatus)) {
+    goto EndBreak_Ret;
+  }
+  EndBreak_BidiLine(tpos, dwStatus);
+  if (!m_bPagination && m_iCurAlignment > FX_TXTLINEALIGNMENT_Left) {
+    EndBreak_Alignment(tpos, bAllChars, dwStatus);
+  }
+EndBreak_Ret:
+  m_pCurLine = pNextLine;
+  pTC = GetLastChar(0, FALSE);
+  m_dwCharType = pTC == NULL ? 0 : pTC->GetCharType();
+  if (dwStatus == FX_TXTBREAK_ParagraphBreak) {
+    m_iArabicContext = m_iCurArabicContext = 1;
+    ResetArabicContext();
+  }
+  return dwStatus;
+}
+int32_t CFX_TxtBreak::GetBreakPos(CFX_TxtCharArray& ca,
+                                  int32_t& iEndPos,
+                                  FX_BOOL bAllChars,
+                                  FX_BOOL bOnlyBrk) {
+  int32_t iLength = ca.GetSize() - 1;
+  if (iLength < 1) {
+    return iLength;
+  }
+  int32_t iBreak = -1, iBreakPos = -1, iIndirect = -1, iIndirectPos = -1,
+          iLast = -1, iLastPos = -1;
+  if (m_bSingleLine || iEndPos <= m_iLineWidth) {
+    if (!bAllChars) {
+      return iLength;
+    }
+    iBreak = iLength;
+    iBreakPos = iEndPos;
+  }
+  FX_BOOL bSpaceBreak = (m_dwPolicies & FX_TXTBREAKPOLICY_SpaceBreak) != 0;
+  FX_BOOL bNumberBreak = (m_dwPolicies & FX_TXTBREAKPOLICY_NumberBreak) != 0;
+  FX_LINEBREAKTYPE eType;
+  FX_DWORD nCodeProp, nCur, nNext;
+  CFX_Char* pCur = ca.GetDataPtr(iLength--);
+  if (bAllChars) {
+    pCur->m_nBreakType = FX_LBT_UNKNOWN;
+  }
+  nCodeProp = pCur->m_dwCharProps;
+  nNext = nCodeProp & 0x003F;
+  int32_t iCharWidth = pCur->m_iCharWidth;
+  if (iCharWidth > 0) {
+    iEndPos -= iCharWidth;
+  }
+  while (iLength >= 0) {
+    pCur = ca.GetDataPtr(iLength);
+    nCodeProp = pCur->m_dwCharProps;
+    nCur = nCodeProp & 0x003F;
+    if (nCur == FX_CBP_SP) {
+      if (nNext == FX_CBP_SP) {
+        eType = bSpaceBreak ? FX_LBT_DIRECT_BRK : FX_LBT_PROHIBITED_BRK;
+      } else {
+        eType = *((const FX_LINEBREAKTYPE*)gs_FX_LineBreak_PairTable +
+                  (nCur << 5) + nNext);
+      }
+    } else if (bNumberBreak && nCur == FX_CBP_NU && nNext == FX_CBP_NU) {
+      eType = FX_LBT_DIRECT_BRK;
+    } else {
+      if (nNext == FX_CBP_SP) {
+        eType = FX_LBT_PROHIBITED_BRK;
+      } else {
+        eType = *((const FX_LINEBREAKTYPE*)gs_FX_LineBreak_PairTable +
+                  (nCur << 5) + nNext);
+      }
+    }
+    if (bAllChars) {
+      pCur->m_nBreakType = (uint8_t)eType;
+    }
+    if (!bOnlyBrk) {
+      if (m_bSingleLine || iEndPos <= m_iLineWidth ||
+          (nCur == FX_CBP_SP && !bSpaceBreak)) {
+        if (eType == FX_LBT_DIRECT_BRK && iBreak < 0) {
+          iBreak = iLength;
+          iBreakPos = iEndPos;
+          if (!bAllChars) {
+            return iLength;
+          }
+        } else if (eType == FX_LBT_INDIRECT_BRK && iIndirect < 0) {
+          iIndirect = iLength;
+          iIndirectPos = iEndPos;
+        }
+        if (iLast < 0) {
+          iLast = iLength;
+          iLastPos = iEndPos;
+        }
+      }
+      iCharWidth = pCur->m_iCharWidth;
+      if (iCharWidth > 0) {
+        iEndPos -= iCharWidth;
+      }
+    }
+    nNext = nCodeProp & 0x003F;
+    iLength--;
+  }
+  if (bOnlyBrk) {
+    return 0;
+  }
+  if (iBreak > -1) {
+    iEndPos = iBreakPos;
+    return iBreak;
+  }
+  if (iIndirect > -1) {
+    iEndPos = iIndirectPos;
+    return iIndirect;
+  }
+  if (iLast > -1) {
+    iEndPos = iLastPos;
+    return iLast;
+  }
+  return 0;
+}
+void CFX_TxtBreak::SplitTextLine(CFX_TxtLine* pCurLine,
+                                 CFX_TxtLine* pNextLine,
+                                 FX_BOOL bAllChars) {
+  FXSYS_assert(pCurLine != NULL && pNextLine != NULL);
+  int32_t iCount = pCurLine->CountChars();
+  if (iCount < 2) {
+    return;
+  }
+  int32_t iEndPos = pCurLine->m_iWidth;
+  CFX_TxtCharArray& curChars = *pCurLine->m_pLineChars;
+  int32_t iCharPos = GetBreakPos(curChars, iEndPos, bAllChars, FALSE);
+  if (iCharPos < 0) {
+    iCharPos = 0;
+  }
+  iCharPos++;
+  if (iCharPos >= iCount) {
+    pNextLine->RemoveAll(TRUE);
+    CFX_Char* pTC = curChars.GetDataPtr(iCharPos - 1);
+    pTC->m_nBreakType = FX_LBT_UNKNOWN;
+    return;
+  }
+  CFX_TxtCharArray& nextChars = *pNextLine->m_pLineChars;
+  int cur_size = curChars.GetSize();
+  nextChars.SetSize(cur_size - iCharPos);
+  FXSYS_memcpy(nextChars.GetData(), curChars.GetDataPtr(iCharPos),
+               (cur_size - iCharPos) * sizeof(CFX_TxtChar));
+  iCount -= iCharPos;
+  cur_size = curChars.GetSize();
+  curChars.RemoveAt(cur_size - iCount, iCount);
+  pCurLine->m_iWidth = iEndPos;
+  CFX_TxtChar* pTC = curChars.GetDataPtr(iCharPos - 1);
+  pTC->m_nBreakType = FX_LBT_UNKNOWN;
+  iCount = nextChars.GetSize();
+  int32_t iCharWidth, iWidth = 0;
+  for (int32_t i = 0; i < iCount; i++) {
+    pTC = nextChars.GetDataPtr(i);
+    if (pTC->GetCharType() >= FX_CHARTYPE_ArabicAlef) {
+      pCurLine->m_iArabicChars--;
+      pNextLine->m_iArabicChars++;
+    }
+    iCharWidth = pTC->m_iCharWidth;
+    if (iCharWidth > 0) {
+      iWidth += iCharWidth;
+    }
+    if (m_bPagination) {
+      continue;
+    }
+    pTC->m_dwStatus = 0;
+  }
+  pNextLine->m_iWidth = iWidth;
+}
+int32_t CFX_TxtBreak::CountBreakChars() const {
+  CFX_TxtLine* pTxtLine = GetTxtLine(TRUE);
+  return pTxtLine == NULL ? 0 : pTxtLine->CountChars();
+}
+int32_t CFX_TxtBreak::CountBreakPieces() const {
+  CFX_TxtPieceArray* pTxtPieces = GetTxtPieces(TRUE);
+  if (pTxtPieces == NULL) {
+    return 0;
+  }
+  return pTxtPieces->GetSize();
+}
+const CFX_TxtPiece* CFX_TxtBreak::GetBreakPiece(int32_t index) const {
+  CFX_TxtPieceArray* pTxtPieces = GetTxtPieces(TRUE);
+  if (pTxtPieces == NULL) {
+    return NULL;
+  }
+  if (index < 0 || index >= pTxtPieces->GetSize()) {
+    return NULL;
+  }
+  return pTxtPieces->GetPtrAt(index);
+}
+void CFX_TxtBreak::ClearBreakPieces() {
+  CFX_TxtLine* pTxtLine = GetTxtLine(TRUE);
+  if (pTxtLine != NULL) {
+    pTxtLine->RemoveAll(TRUE);
+  }
+  m_iReady = 0;
+}
+void CFX_TxtBreak::Reset() {
+  m_dwCharType = 0;
+  m_iArabicContext = m_iCurArabicContext = 1;
+  ResetArabicContext();
+  m_pTxtLine1->RemoveAll(TRUE);
+  m_pTxtLine2->RemoveAll(TRUE);
+}
+
+struct FX_FORMCHAR {
+  FX_WORD wch;
+  FX_WORD wForm;
+  int32_t iWidth;
+};
+
+int32_t CFX_TxtBreak::GetDisplayPos(const FX_TXTRUN* pTxtRun,
+                                    FXTEXT_CHARPOS* pCharPos,
+                                    FX_BOOL bCharCode,
+                                    CFX_WideString* pWSForms,
+                                    FX_AdjustCharDisplayPos pAdjustPos) const {
+  if (pTxtRun == NULL || pTxtRun->iLength < 1) {
+    return 0;
+  }
+  IFX_TxtAccess* pAccess = pTxtRun->pAccess;
+  void* pIdentity = pTxtRun->pIdentity;
+  const FX_WCHAR* pStr = pTxtRun->pStr;
+  int32_t* pWidths = pTxtRun->pWidths;
+  int32_t iLength = pTxtRun->iLength - 1;
+  IFX_Font* pFont = pTxtRun->pFont;
+  FX_DWORD dwStyles = pTxtRun->dwStyles;
+  CFX_RectF rtText(*pTxtRun->pRect);
+  FX_BOOL bRTLPiece =
+      (pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_OddBidiLevel) != 0;
+  FX_BOOL bArabicNumber =
+      (pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_ArabicNumber) != 0;
+  FX_BOOL bArabicComma =
+      (pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_ArabicComma) != 0;
+  FX_FLOAT fFontSize = pTxtRun->fFontSize;
+  int32_t iFontSize = FXSYS_round(fFontSize * 20.0f);
+  int32_t iAscent = pFont->GetAscent();
+  int32_t iDescent = pFont->GetDescent();
+  int32_t iMaxHeight = iAscent - iDescent;
+  FX_FLOAT fFontHeight = fFontSize;
+  FX_FLOAT fAscent = fFontHeight * (FX_FLOAT)iAscent / (FX_FLOAT)iMaxHeight;
+  FX_FLOAT fDescent = fFontHeight * (FX_FLOAT)iDescent / (FX_FLOAT)iMaxHeight;
+  FX_BOOL bVerticalDoc = (dwStyles & FX_TXTLAYOUTSTYLE_VerticalLayout) != 0;
+  FX_BOOL bVerticalChar = (dwStyles & FX_TXTLAYOUTSTYLE_VerticalChars) != 0;
+  int32_t iRotation = GetLineRotation(dwStyles) + pTxtRun->iCharRotation;
+  int32_t iCharRotation;
+  FX_WCHAR wch, wPrev = 0xFEFF, wNext, wForm, wLast = 0xFEFF;
+  int32_t iWidth, iCharWidth, iCharHeight;
+  FX_FLOAT fX, fY, fCharWidth, fCharHeight;
+  int32_t iHorScale = pTxtRun->iHorizontalScale;
+  int32_t iVerScale = pTxtRun->iVerticalScale;
+  FX_BOOL bSkipSpace = pTxtRun->bSkipSpace;
+  FX_BOOL bEmptyChar, bShadda = FALSE, bLam = FALSE;
+  FX_DWORD dwProps, dwCharType;
+  FX_FORMCHAR formChars[3];
+  FX_FLOAT fYBase;
+  fX = rtText.left;
+  if (bVerticalDoc) {
+    fX += (rtText.width - fFontSize) / 2.0f;
+    fYBase = bRTLPiece ? rtText.bottom() : rtText.top;
+    fY = fYBase;
+  } else {
+    if (bRTLPiece) {
+      fX = rtText.right();
+    }
+    fYBase = rtText.top + (rtText.height - fFontSize) / 2.0f;
+    fY = fYBase + fAscent;
+  }
+  int32_t iCount = 0, iNext, iForms;
+  for (int32_t i = 0; i <= iLength; i++) {
+    if (pAccess != NULL) {
+      wch = pAccess->GetChar(pIdentity, i);
+      iWidth = pAccess->GetWidth(pIdentity, i);
+    } else {
+      wch = *pStr++;
+      iWidth = *pWidths++;
+    }
+    dwProps = FX_GetUnicodeProperties(wch);
+    dwCharType = (dwProps & FX_CHARTYPEBITSMASK);
+    if (dwCharType == FX_CHARTYPE_ArabicAlef && iWidth == 0) {
+      wPrev = 0xFEFF;
+      wLast = wch;
+      continue;
+    }
+    if (dwCharType >= FX_CHARTYPE_ArabicAlef) {
+      if (i < iLength) {
+        if (pAccess != NULL) {
+          iNext = i + 1;
+          while (iNext <= iLength) {
+            wNext = pAccess->GetChar(pIdentity, iNext);
+            dwProps = FX_GetUnicodeProperties(wNext);
+            if ((dwProps & FX_CHARTYPEBITSMASK) != FX_CHARTYPE_Combination) {
+              break;
+            }
+            iNext++;
+          }
+          if (iNext > iLength) {
+            wNext = 0xFEFF;
+          }
+        } else {
+          int32_t j = -1;
+          do {
+            j++;
+            if (i + j >= iLength) {
+              break;
+            }
+            wNext = pStr[j];
+            dwProps = FX_GetUnicodeProperties(wNext);
+          } while ((dwProps & FX_CHARTYPEBITSMASK) == FX_CHARTYPE_Combination);
+          if (i + j >= iLength) {
+            wNext = 0xFEFF;
+          }
+        }
+      } else {
+        wNext = 0xFEFF;
+      }
+      wForm = m_pArabicChar->GetFormChar(wch, wPrev, wNext);
+      bLam = (wPrev == 0x0644 && wch == 0x0644 && wNext == 0x0647);
+    } else if (dwCharType == FX_CHARTYPE_Combination) {
+      wForm = wch;
+      if (wch >= 0x064C && wch <= 0x0651) {
+        if (bShadda) {
+          wForm = 0xFEFF;
+          bShadda = FALSE;
+        } else {
+          wNext = 0xFEFF;
+          if (pAccess != NULL) {
+            iNext = i + 1;
+            if (iNext <= iLength) {
+              wNext = pAccess->GetChar(pIdentity, iNext);
+            }
+          } else {
+            if (i < iLength) {
+              wNext = *pStr;
+            }
+          }
+          if (wch == 0x0651) {
+            if (wNext >= 0x064C && wNext <= 0x0650) {
+              wForm = FX_GetArabicFromShaddaTable(wNext);
+              bShadda = TRUE;
+            }
+          } else {
+            if (wNext == 0x0651) {
+              wForm = FX_GetArabicFromShaddaTable(wch);
+              bShadda = TRUE;
+            }
+          }
+        }
+      } else {
+        bShadda = FALSE;
+      }
+    } else if (dwCharType == FX_CHARTYPE_Numeric) {
+      wForm = wch;
+      if (bArabicNumber) {
+        wForm += 0x0630;
+      }
+    } else if (wch == L'.') {
+      wForm = wch;
+      if (bArabicNumber) {
+        wNext = 0xFEFF;
+        if (pAccess != NULL) {
+          iNext = i + 1;
+          if (iNext <= iLength) {
+            wNext = pAccess->GetChar(pIdentity, iNext);
+          }
+        } else {
+          if (i < iLength) {
+            wNext = *pStr;
+          }
+        }
+        if (wNext >= L'0' && wNext <= L'9') {
+          wForm = 0x066B;
+        }
+      }
+    } else if (wch == L',') {
+      wForm = wch;
+      if (bArabicComma) {
+        wForm = 0x060C;
+      }
+    } else if (bRTLPiece || bVerticalChar) {
+      wForm = FX_GetMirrorChar(wch, dwProps, bRTLPiece, bVerticalChar);
+    } else {
+      wForm = wch;
+    }
+    if (dwCharType != FX_CHARTYPE_Combination) {
+      bShadda = FALSE;
+    }
+    if (dwCharType < FX_CHARTYPE_ArabicAlef) {
+      bLam = FALSE;
+    }
+    dwProps = FX_GetUnicodeProperties(wForm);
+    iCharRotation = iRotation;
+    if (bVerticalChar && (dwProps & 0x8000) != 0) {
+      iCharRotation++;
+    }
+    iCharRotation %= 4;
+    bEmptyChar =
+        (dwCharType >= FX_CHARTYPE_Tab && dwCharType <= FX_CHARTYPE_Control);
+    if (wForm == 0xFEFF) {
+      bEmptyChar = TRUE;
+    }
+    iForms = bLam ? 3 : 1;
+    iCount += (bEmptyChar && bSkipSpace) ? 0 : iForms;
+    if (pCharPos == NULL) {
+      if (iWidth > 0) {
+        wPrev = wch;
+      }
+      wLast = wch;
+      continue;
+    }
+    iCharWidth = iWidth;
+    if (iCharWidth < 0) {
+      iCharWidth = -iCharWidth;
+    }
+    iCharWidth /= iFontSize;
+    formChars[0].wch = wch;
+    formChars[0].wForm = wForm;
+    formChars[0].iWidth = iCharWidth;
+    if (bLam) {
+      formChars[1].wForm = 0x0651;
+      iCharWidth = 0;
+      pFont->GetCharWidth(0x0651, iCharWidth, FALSE);
+      formChars[1].iWidth = iCharWidth;
+      formChars[2].wForm = 0x0670;
+      iCharWidth = 0;
+      pFont->GetCharWidth(0x0670, iCharWidth, FALSE);
+      formChars[2].iWidth = iCharWidth;
+    }
+    for (int32_t j = 0; j < iForms; j++) {
+      wForm = (FX_WCHAR)formChars[j].wForm;
+      iCharWidth = formChars[j].iWidth;
+      if (j > 0) {
+        dwCharType = FX_CHARTYPE_Combination;
+        wch = wForm;
+        wLast = (FX_WCHAR)formChars[j - 1].wForm;
+      }
+      if (!bEmptyChar || (bEmptyChar && !bSkipSpace)) {
+        pCharPos->m_GlyphIndex =
+            bCharCode ? wch : pFont->GetGlyphIndex(wForm, FALSE);
+        pCharPos->m_ExtGID = pCharPos->m_GlyphIndex;
+        pCharPos->m_FontCharWidth = iCharWidth;
+        if (pWSForms) {
+          *pWSForms += wForm;
+        }
+      }
+      if (bVerticalDoc) {
+        iCharHeight = iCharWidth;
+        iCharWidth = 1000;
+      } else {
+        iCharHeight = 1000;
+      }
+      fCharWidth = fFontSize * iCharWidth / 1000.0f;
+      fCharHeight = fFontSize * iCharHeight / 1000.0f;
+      if (bRTLPiece && dwCharType != FX_CHARTYPE_Combination) {
+        if (bVerticalDoc) {
+          fY -= fCharHeight;
+        } else {
+          fX -= fCharWidth;
+        }
+      }
+      if (!bEmptyChar || (bEmptyChar && !bSkipSpace)) {
+        pCharPos->m_OriginX = fX;
+        pCharPos->m_OriginY = fY;
+        if ((dwStyles & FX_TXTLAYOUTSTYLE_CombText) != 0) {
+          int32_t iFormWidth = iCharWidth;
+          pFont->GetCharWidth(wForm, iFormWidth, FALSE);
+          FX_FLOAT fOffset = fFontSize * (iCharWidth - iFormWidth) / 2000.0f;
+          if (bVerticalDoc) {
+            pCharPos->m_OriginY += fOffset;
+          } else {
+            pCharPos->m_OriginX += fOffset;
+          }
+        }
+        if (dwCharType == FX_CHARTYPE_Combination) {
+          CFX_Rect rtBBox;
+          rtBBox.Reset();
+          if (pFont->GetCharBBox(wForm, rtBBox, FALSE)) {
+            pCharPos->m_OriginY =
+                fYBase + fFontSize -
+                fFontSize * (FX_FLOAT)rtBBox.height / (FX_FLOAT)iMaxHeight;
+          }
+          if (wForm == wch && wLast != 0xFEFF) {
+            FX_DWORD dwLastProps = FX_GetUnicodeProperties(wLast);
+            if ((dwLastProps & FX_CHARTYPEBITSMASK) ==
+                FX_CHARTYPE_Combination) {
+              CFX_Rect rtBBox;
+              rtBBox.Reset();
+              if (pFont->GetCharBBox(wLast, rtBBox, FALSE)) {
+                pCharPos->m_OriginY -= fFontSize * rtBBox.height / iMaxHeight;
+              }
+            }
+          }
+        }
+        CFX_PointF ptOffset;
+        FX_BOOL bAdjusted = FALSE;
+        if (pAdjustPos) {
+          bAdjusted = pAdjustPos(wForm, bCharCode, pFont, fFontSize,
+                                 bVerticalChar, ptOffset);
+        }
+        if (!bAdjusted && bVerticalChar && (dwProps & 0x00010000) != 0) {
+          CFX_Rect rtBBox;
+          rtBBox.Reset();
+          if (pFont->GetCharBBox(wForm, rtBBox, FALSE)) {
+            ptOffset.x = fFontSize * (850 - rtBBox.right()) / iMaxHeight;
+            ptOffset.y = fFontSize * (iAscent - rtBBox.top - 150) / iMaxHeight;
+          }
+        }
+        pCharPos->m_OriginX += ptOffset.x;
+        pCharPos->m_OriginY -= ptOffset.y;
+      }
+      if (!bRTLPiece && dwCharType != FX_CHARTYPE_Combination) {
+        if (bVerticalDoc) {
+          fY += fCharHeight;
+        } else {
+          fX += fCharWidth;
+        }
+      }
+      if (!bEmptyChar || (bEmptyChar && !bSkipSpace)) {
+        pCharPos->m_bGlyphAdjust = TRUE;
+        if (bVerticalDoc) {
+          if (iCharRotation == 0) {
+            pCharPos->m_AdjustMatrix[0] = -1;
+            pCharPos->m_AdjustMatrix[1] = 0;
+            pCharPos->m_AdjustMatrix[2] = 0;
+            pCharPos->m_AdjustMatrix[3] = 1;
+            pCharPos->m_OriginY += fAscent;
+          } else if (iCharRotation == 1) {
+            pCharPos->m_AdjustMatrix[0] = 0;
+            pCharPos->m_AdjustMatrix[1] = -1;
+            pCharPos->m_AdjustMatrix[2] = -1;
+            pCharPos->m_AdjustMatrix[3] = 0;
+            pCharPos->m_OriginX -= fDescent;
+          } else if (iCharRotation == 2) {
+            pCharPos->m_AdjustMatrix[0] = 1;
+            pCharPos->m_AdjustMatrix[1] = 0;
+            pCharPos->m_AdjustMatrix[2] = 0;
+            pCharPos->m_AdjustMatrix[3] = -1;
+            pCharPos->m_OriginX += fCharWidth;
+            pCharPos->m_OriginY += fAscent;
+          } else {
+            pCharPos->m_AdjustMatrix[0] = 0;
+            pCharPos->m_AdjustMatrix[1] = 1;
+            pCharPos->m_AdjustMatrix[2] = 1;
+            pCharPos->m_AdjustMatrix[3] = 0;
+            pCharPos->m_OriginX += fAscent;
+          }
+        } else {
+          if (iCharRotation == 0) {
+            pCharPos->m_AdjustMatrix[0] = -1;
+            pCharPos->m_AdjustMatrix[1] = 0;
+            pCharPos->m_AdjustMatrix[2] = 0;
+            pCharPos->m_AdjustMatrix[3] = 1;
+          } else if (iCharRotation == 1) {
+            pCharPos->m_AdjustMatrix[0] = 0;
+            pCharPos->m_AdjustMatrix[1] = -1;
+            pCharPos->m_AdjustMatrix[2] = -1;
+            pCharPos->m_AdjustMatrix[3] = 0;
+            pCharPos->m_OriginX -= fDescent;
+            pCharPos->m_OriginY -= fAscent + fDescent;
+          } else if (iCharRotation == 2) {
+            pCharPos->m_AdjustMatrix[0] = 1;
+            pCharPos->m_AdjustMatrix[1] = 0;
+            pCharPos->m_AdjustMatrix[2] = 0;
+            pCharPos->m_AdjustMatrix[3] = -1;
+            pCharPos->m_OriginX += fCharWidth;
+            pCharPos->m_OriginY -= fAscent;
+          } else {
+            pCharPos->m_AdjustMatrix[0] = 0;
+            pCharPos->m_AdjustMatrix[1] = 1;
+            pCharPos->m_AdjustMatrix[2] = 1;
+            pCharPos->m_AdjustMatrix[3] = 0;
+            pCharPos->m_OriginX += fAscent;
+          }
+        }
+        if (iHorScale != 100 || iVerScale != 100) {
+          pCharPos->m_AdjustMatrix[0] =
+              pCharPos->m_AdjustMatrix[0] * iHorScale / 100.0f;
+          pCharPos->m_AdjustMatrix[1] =
+              pCharPos->m_AdjustMatrix[1] * iHorScale / 100.0f;
+          pCharPos->m_AdjustMatrix[2] =
+              pCharPos->m_AdjustMatrix[2] * iVerScale / 100.0f;
+          pCharPos->m_AdjustMatrix[3] =
+              pCharPos->m_AdjustMatrix[3] * iVerScale / 100.0f;
+        }
+        pCharPos++;
+      }
+    }
+    if (iWidth > 0) {
+      wPrev = (FX_WCHAR)formChars[0].wch;
+    }
+    wLast = wch;
+  }
+  return iCount;
+}
+int32_t CFX_TxtBreak::GetCharRects(const FX_TXTRUN* pTxtRun,
+                                   CFX_RectFArray& rtArray,
+                                   FX_BOOL bCharBBox) const {
+  if (pTxtRun == NULL || pTxtRun->iLength < 1) {
+    return 0;
+  }
+  IFX_TxtAccess* pAccess = pTxtRun->pAccess;
+  void* pIdentity = pTxtRun->pIdentity;
+  const FX_WCHAR* pStr = pTxtRun->pStr;
+  int32_t* pWidths = pTxtRun->pWidths;
+  int32_t iLength = pTxtRun->iLength;
+  CFX_RectF rect(*pTxtRun->pRect);
+  FX_BOOL bRTLPiece =
+      (pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_OddBidiLevel) != 0;
+  FX_FLOAT fFontSize = pTxtRun->fFontSize;
+  int32_t iFontSize = FXSYS_round(fFontSize * 20.0f);
+  FX_FLOAT fScale = fFontSize / 1000.0f;
+  IFX_Font* pFont = pTxtRun->pFont;
+  if (pFont == NULL) {
+    bCharBBox = FALSE;
+  }
+  CFX_Rect bbox;
+  bbox.Set(0, 0, 0, 0);
+  if (bCharBBox) {
+    bCharBBox = pFont->GetBBox(bbox);
+  }
+  FX_FLOAT fLeft = std::max(0.0f, bbox.left * fScale);
+  FX_FLOAT fHeight = FXSYS_fabs(bbox.height * fScale);
+  rtArray.RemoveAll();
+  rtArray.SetSize(iLength);
+  FX_BOOL bVertical =
+      (pTxtRun->dwStyles & FX_TXTLAYOUTSTYLE_VerticalLayout) != 0;
+  FX_BOOL bSingleLine = (pTxtRun->dwStyles & FX_TXTLAYOUTSTYLE_SingleLine) != 0;
+  FX_BOOL bCombText = (pTxtRun->dwStyles & FX_TXTLAYOUTSTYLE_CombText) != 0;
+  FX_WCHAR wch, wLineBreakChar = pTxtRun->wLineBreakChar;
+  int32_t iCharSize;
+  FX_FLOAT fCharSize, fStart;
+  if (bVertical) {
+    fStart = bRTLPiece ? rect.bottom() : rect.top;
+  } else {
+    fStart = bRTLPiece ? rect.right() : rect.left;
+  }
+  for (int32_t i = 0; i < iLength; i++) {
+    if (pAccess != NULL) {
+      wch = pAccess->GetChar(pIdentity, i);
+      iCharSize = pAccess->GetWidth(pIdentity, i);
+    } else {
+      wch = *pStr++;
+      iCharSize = *pWidths++;
+    }
+    fCharSize = (FX_FLOAT)iCharSize / 20000.0f;
+    FX_BOOL bRet = (!bSingleLine && FX_IsCtrlCode(wch));
+    if (!(wch == L'\v' || wch == L'\f' || wch == 0x2028 || wch == 0x2029 ||
+          (wLineBreakChar != 0xFEFF && wch == wLineBreakChar))) {
+      bRet = FALSE;
+    }
+    if (bRet) {
+      iCharSize = iFontSize * 500;
+      fCharSize = fFontSize / 2.0f;
+    }
+    if (bVertical) {
+      rect.top = fStart;
+      if (bRTLPiece) {
+        rect.top -= fCharSize;
+        fStart -= fCharSize;
+      } else {
+        fStart += fCharSize;
+      }
+      rect.height = fCharSize;
+    } else {
+      rect.left = fStart;
+      if (bRTLPiece) {
+        rect.left -= fCharSize;
+        fStart -= fCharSize;
+      } else {
+        fStart += fCharSize;
+      }
+      rect.width = fCharSize;
+    }
+    if (bCharBBox && !bRet) {
+      int32_t iCharWidth = 1000;
+      pFont->GetCharWidth(wch, iCharWidth);
+      FX_FLOAT fRTLeft = 0, fCharWidth = 0;
+      if (iCharWidth > 0) {
+        fCharWidth = iCharWidth * fScale;
+        fRTLeft = fLeft;
+        if (bCombText) {
+          fRTLeft = (rect.width - fCharWidth) / 2.0f;
+        }
+      }
+      CFX_RectF rtBBoxF;
+      if (bVertical) {
+        rtBBoxF.top = rect.left + fRTLeft;
+        rtBBoxF.left = rect.top + (rect.height - fHeight) / 2.0f;
+        rtBBoxF.height = fCharWidth;
+        rtBBoxF.width = fHeight;
+        rtBBoxF.left = std::max(rtBBoxF.left, 0.0f);
+      } else {
+        rtBBoxF.left = rect.left + fRTLeft;
+        rtBBoxF.top = rect.top + (rect.height - fHeight) / 2.0f;
+        rtBBoxF.width = fCharWidth;
+        rtBBoxF.height = fHeight;
+        rtBBoxF.top = std::max(rtBBoxF.top, 0.0f);
+      }
+      rtArray.SetAt(i, rtBBoxF);
+      continue;
+    }
+    rtArray.SetAt(i, rect);
+  }
+  return iLength;
+}