Remove core/include/fpdfdoc/fpdf_vt.h

core/fpdfdoc/cpdf_variabletext.cpp

-// Copyright 2014 PDFium Authors. All rights reserved.
+// Copyright 2016 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 <algorithm>
-
-#include "core/fpdfdoc/pdf_vt.h"
-#include "core/include/fpdfdoc/fpdf_doc.h"
-#include "core/include/fpdfdoc/fpdf_vt.h"
-#include "core/include/fpdfdoc/fpdf_vt.h"
+#include "core/fpdfapi/fpdf_font/include/cpdf_font.h"
+#include "core/fpdfdoc/cpvt_wordinfo.h"
+#include "core/fpdfdoc/csection.h"
+#include "core/fpdfdoc/include/cpdf_variabletext.h"
+#include "core/fpdfdoc/include/cpvt_section.h"
+#include "core/fpdfdoc/include/cpvt_word.h"
+#include "core/fpdfdoc/include/ipvt_fontmap.h"
+
+namespace {
+
+const float kDefaultFontSize = 18.0f;
+const float kFontScale = 0.001f;
+const uint8_t kReturnLength = 1;
+const float kScalePercent = 0.01f;
 
 const uint8_t gFontSizeSteps[] = {4,  6,  8,   9,   10,  12,  14, 18, 20,
                                   25, 30, 35,  40,  45,  50,  55, 60, 70,
                                   80, 90, 100, 110, 120, 130, 144};
-#define PVT_RETURN_LENGTH 1
-#define PVT_DEFAULT_FONTSIZE 18.0f
-#define PVTWORD_SCRIPT_NORMAL 0
-#define PVTWORD_SCRIPT_SUPER 1
-#define PVTWORD_SCRIPT_SUB 2
-#define PVT_FONTSCALE 0.001f
-#define PVT_PERCENT 0.01f
-#define PVT_HALF 0.5f
-CLine::CLine() {}
-CLine::~CLine() {}
-CPVT_WordPlace CLine::GetBeginWordPlace() const {
-  return CPVT_WordPlace(LinePlace.nSecIndex, LinePlace.nLineIndex, -1);
-}
-CPVT_WordPlace CLine::GetEndWordPlace() const {
-  return CPVT_WordPlace(LinePlace.nSecIndex, LinePlace.nLineIndex,
-                        m_LineInfo.nEndWordIndex);
-}
-CPVT_WordPlace CLine::GetPrevWordPlace(const CPVT_WordPlace& place) const {
-  if (place.nWordIndex > m_LineInfo.nEndWordIndex) {
-    return CPVT_WordPlace(place.nSecIndex, place.nLineIndex,
-                          m_LineInfo.nEndWordIndex);
-  }
-  return CPVT_WordPlace(place.nSecIndex, place.nLineIndex,
-                        place.nWordIndex - 1);
-}
-CPVT_WordPlace CLine::GetNextWordPlace(const CPVT_WordPlace& place) const {
-  if (place.nWordIndex < m_LineInfo.nBeginWordIndex) {
-    return CPVT_WordPlace(place.nSecIndex, place.nLineIndex,
-                          m_LineInfo.nBeginWordIndex);
-  }
-  return CPVT_WordPlace(place.nSecIndex, place.nLineIndex,
-                        place.nWordIndex + 1);
-}
-CSection::CSection(CPDF_VariableText* pVT) : m_pVT(pVT) {}
-CSection::~CSection() {
-  ResetAll();
-}
-void CSection::ResetAll() {
-  ResetWordArray();
-  ResetLineArray();
-}
-void CSection::ResetLineArray() {
-  m_LineArray.RemoveAll();
-}
-void CSection::ResetWordArray() {
-  for (int32_t i = 0, sz = m_WordArray.GetSize(); i < sz; i++) {
-    delete m_WordArray.GetAt(i);
-  }
-  m_WordArray.RemoveAll();
-}
-void CSection::ResetLinePlace() {
-  for (int32_t i = 0, sz = m_LineArray.GetSize(); i < sz; i++) {
-    if (CLine* pLine = m_LineArray.GetAt(i)) {
-      pLine->LinePlace = CPVT_WordPlace(SecPlace.nSecIndex, i, -1);
-    }
-  }
-}
-CPVT_WordPlace CSection::AddWord(const CPVT_WordPlace& place,
-                                 const CPVT_WordInfo& wordinfo) {
-  CPVT_WordInfo* pWord = new CPVT_WordInfo(wordinfo);
-  int32_t nWordIndex =
-      std::max(std::min(place.nWordIndex, m_WordArray.GetSize()), 0);
-  if (nWordIndex == m_WordArray.GetSize()) {
-    m_WordArray.Add(pWord);
-  } else {
-    m_WordArray.InsertAt(nWordIndex, pWord);
-  }
-  return place;
-}
-CPVT_WordPlace CSection::AddLine(const CPVT_LineInfo& lineinfo) {
-  return CPVT_WordPlace(SecPlace.nSecIndex, m_LineArray.Add(lineinfo), -1);
-}
-CPVT_FloatRect CSection::Rearrange() {
-  if (m_pVT->m_nCharArray > 0) {
-    return CTypeset(this).CharArray();
-  }
-  return CTypeset(this).Typeset();
-}
-CPVT_Size CSection::GetSectionSize(FX_FLOAT fFontSize) {
-  return CTypeset(this).GetEditSize(fFontSize);
-}
-CPVT_WordPlace CSection::GetBeginWordPlace() const {
-  if (CLine* pLine = m_LineArray.GetAt(0)) {
-    return pLine->GetBeginWordPlace();
-  }
-  return SecPlace;
-}
-CPVT_WordPlace CSection::GetEndWordPlace() const {
-  if (CLine* pLine = m_LineArray.GetAt(m_LineArray.GetSize() - 1)) {
-    return pLine->GetEndWordPlace();
-  }
-  return SecPlace;
-}
-CPVT_WordPlace CSection::GetPrevWordPlace(const CPVT_WordPlace& place) const {
-  if (place.nLineIndex < 0) {
-    return GetBeginWordPlace();
-  }
-  if (place.nLineIndex >= m_LineArray.GetSize()) {
-    return GetEndWordPlace();
-  }
-  if (CLine* pLine = m_LineArray.GetAt(place.nLineIndex)) {
-    if (place.nWordIndex == pLine->m_LineInfo.nBeginWordIndex) {
-      return CPVT_WordPlace(place.nSecIndex, place.nLineIndex, -1);
-    }
-    if (place.nWordIndex < pLine->m_LineInfo.nBeginWordIndex) {
-      if (CLine* pPrevLine = m_LineArray.GetAt(place.nLineIndex - 1)) {
-        return pPrevLine->GetEndWordPlace();
+
+}  // namespace
+
+CPDF_VariableText::Provider::Provider(IPVT_FontMap* pFontMap)
+    : m_pFontMap(pFontMap) {
+  ASSERT(m_pFontMap);
+}
+
+CPDF_VariableText::Provider::~Provider() {}
+
+int32_t CPDF_VariableText::Provider::GetCharWidth(int32_t nFontIndex,
+                                                  uint16_t word,
+                                                  int32_t nWordStyle) {
+  if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex)) {
+    uint32_t charcode = pPDFFont->CharCodeFromUnicode(word);
+    if (charcode != CPDF_Font::kInvalidCharCode)
+      return pPDFFont->GetCharWidthF(charcode);
+  }
+  return 0;
+}
+
+int32_t CPDF_VariableText::Provider::GetTypeAscent(int32_t nFontIndex) {
+  if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex))
+    return pPDFFont->GetTypeAscent();
+  return 0;
+}
+
+int32_t CPDF_VariableText::Provider::GetTypeDescent(int32_t nFontIndex) {
+  if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex))
+    return pPDFFont->GetTypeDescent();
+  return 0;
+}
+
+int32_t CPDF_VariableText::Provider::GetWordFontIndex(uint16_t word,
+                                                      int32_t charset,
+                                                      int32_t nFontIndex) {
+  if (CPDF_Font* pDefFont = m_pFontMap->GetPDFFont(0)) {
+    if (pDefFont->CharCodeFromUnicode(word) != CPDF_Font::kInvalidCharCode)
+      return 0;
+  }
+  if (CPDF_Font* pSysFont = m_pFontMap->GetPDFFont(1)) {
+    if (pSysFont->CharCodeFromUnicode(word) != CPDF_Font::kInvalidCharCode)
+      return 1;
+  }
+  return -1;
+}
+
+FX_BOOL CPDF_VariableText::Provider::IsLatinWord(uint16_t word) {
+  if ((word >= 0x61 && word <= 0x7A) || (word >= 0x41 && word <= 0x5A) ||
+      word == 0x2D || word == 0x27) {
+    return TRUE;
+  }
+  return FALSE;
+}
+
+int32_t CPDF_VariableText::Provider::GetDefaultFontIndex() {
+  return 0;
+}
+
+CPDF_VariableText::Iterator::Iterator(CPDF_VariableText* pVT)
+    : m_CurPos(-1, -1, -1), m_pVT(pVT) {}
+
+CPDF_VariableText::Iterator::~Iterator() {}
+
+void CPDF_VariableText::Iterator::SetAt(int32_t nWordIndex) {
+  m_CurPos = m_pVT->WordIndexToWordPlace(nWordIndex);
+}
+
+void CPDF_VariableText::Iterator::SetAt(const CPVT_WordPlace& place) {
+  ASSERT(m_pVT);
+  m_CurPos = place;
+}
+
+FX_BOOL CPDF_VariableText::Iterator::NextWord() {
+  if (m_CurPos == m_pVT->GetEndWordPlace())
+    return FALSE;
+
+  m_CurPos = m_pVT->GetNextWordPlace(m_CurPos);
+  return TRUE;
+}
+
+FX_BOOL CPDF_VariableText::Iterator::PrevWord() {
+  if (m_CurPos == m_pVT->GetBeginWordPlace())
+    return FALSE;
+
+  m_CurPos = m_pVT->GetPrevWordPlace(m_CurPos);
+  return TRUE;
+}
+
+FX_BOOL CPDF_VariableText::Iterator::NextLine() {
+  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
+    if (m_CurPos.nLineIndex < pSection->m_LineArray.GetSize() - 1) {
+      m_CurPos =
+          CPVT_WordPlace(m_CurPos.nSecIndex, m_CurPos.nLineIndex + 1, -1);
+      return TRUE;
+    }
+    if (m_CurPos.nSecIndex < m_pVT->m_SectionArray.GetSize() - 1) {
+      m_CurPos = CPVT_WordPlace(m_CurPos.nSecIndex + 1, 0, -1);
+      return TRUE;
+    }
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDF_VariableText::Iterator::PrevLine() {
+  if (m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
+    if (m_CurPos.nLineIndex > 0) {
+      m_CurPos =
+          CPVT_WordPlace(m_CurPos.nSecIndex, m_CurPos.nLineIndex - 1, -1);
+      return TRUE;
+    }
+    if (m_CurPos.nSecIndex > 0) {
+      if (CSection* pLastSection =
+              m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex - 1)) {
+        m_CurPos = CPVT_WordPlace(m_CurPos.nSecIndex - 1,
+                                  pLastSection->m_LineArray.GetSize() - 1, -1);
+        return TRUE;
       }
-    } else {
-      return pLine->GetPrevWordPlace(place);
-    }
-  }
-  return place;
-}
-CPVT_WordPlace CSection::GetNextWordPlace(const CPVT_WordPlace& place) const {
-  if (place.nLineIndex < 0) {
-    return GetBeginWordPlace();
-  }
-  if (place.nLineIndex >= m_LineArray.GetSize()) {
-    return GetEndWordPlace();
-  }
-  if (CLine* pLine = m_LineArray.GetAt(place.nLineIndex)) {
-    if (place.nWordIndex >= pLine->m_LineInfo.nEndWordIndex) {
-      if (CLine* pNextLine = m_LineArray.GetAt(place.nLineIndex + 1)) {
-        return pNextLine->GetBeginWordPlace();
+    }
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDF_VariableText::Iterator::NextSection() {
+  if (m_CurPos.nSecIndex < m_pVT->m_SectionArray.GetSize() - 1) {
+    m_CurPos = CPVT_WordPlace(m_CurPos.nSecIndex + 1, 0, -1);
+    return TRUE;
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDF_VariableText::Iterator::PrevSection() {
+  ASSERT(m_pVT);
+  if (m_CurPos.nSecIndex > 0) {
+    m_CurPos = CPVT_WordPlace(m_CurPos.nSecIndex - 1, 0, -1);
+    return TRUE;
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDF_VariableText::Iterator::GetWord(CPVT_Word& word) const {
+  word.WordPlace = m_CurPos;
+  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
+    if (pSection->m_LineArray.GetAt(m_CurPos.nLineIndex)) {
+      if (CPVT_WordInfo* pWord =
+              pSection->m_WordArray.GetAt(m_CurPos.nWordIndex)) {
+        word.Word = pWord->Word;
+        word.nCharset = pWord->nCharset;
+        word.fWidth = m_pVT->GetWordWidth(*pWord);
+        word.ptWord = m_pVT->InToOut(
+            CFX_FloatPoint(pWord->fWordX + pSection->m_SecInfo.rcSection.left,
+                           pWord->fWordY + pSection->m_SecInfo.rcSection.top));
+        word.fAscent = m_pVT->GetWordAscent(*pWord);
+        word.fDescent = m_pVT->GetWordDescent(*pWord);
+        if (pWord->pWordProps)
+          word.WordProps = *pWord->pWordProps;
+
+        word.nFontIndex = m_pVT->GetWordFontIndex(*pWord);
+        word.fFontSize = m_pVT->GetWordFontSize(*pWord);
+        return TRUE;
       }
-    } else {
-      return pLine->GetNextWordPlace(place);
-    }
-  }
-  return place;
-}
-void CSection::UpdateWordPlace(CPVT_WordPlace& place) const {
-  int32_t nLeft = 0;
-  int32_t nRight = m_LineArray.GetSize() - 1;
-  int32_t nMid = (nLeft + nRight) / 2;
-  while (nLeft <= nRight) {
-    if (CLine* pLine = m_LineArray.GetAt(nMid)) {
-      if (place.nWordIndex < pLine->m_LineInfo.nBeginWordIndex) {
-        nRight = nMid - 1;
-        nMid = (nLeft + nRight) / 2;
-      } else if (place.nWordIndex > pLine->m_LineInfo.nEndWordIndex) {
-        nLeft = nMid + 1;
-        nMid = (nLeft + nRight) / 2;
-      } else {
-        place.nLineIndex = nMid;
-        return;
-      }
-    } else {
-      break;
-    }
-  }
-}
-CPVT_WordPlace CSection::SearchWordPlace(const CFX_FloatPoint& point) const {
+    }
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDF_VariableText::Iterator::SetWord(const CPVT_Word& word) {
+  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
+    if (CPVT_WordInfo* pWord =
+            pSection->m_WordArray.GetAt(m_CurPos.nWordIndex)) {
+      if (pWord->pWordProps)
+        *pWord->pWordProps = word.WordProps;
+      return TRUE;
+    }
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDF_VariableText::Iterator::GetLine(CPVT_Line& line) const {
   ASSERT(m_pVT);
-  CPVT_WordPlace place = GetBeginWordPlace();
-  FX_BOOL bUp = TRUE;
-  FX_BOOL bDown = TRUE;
-  int32_t nLeft = 0;
-  int32_t nRight = m_LineArray.GetSize() - 1;
-  int32_t nMid = m_LineArray.GetSize() / 2;
-  FX_FLOAT fTop = 0;
-  FX_FLOAT fBottom = 0;
-  while (nLeft <= nRight) {
-    if (CLine* pLine = m_LineArray.GetAt(nMid)) {
-      fTop = pLine->m_LineInfo.fLineY - pLine->m_LineInfo.fLineAscent -
-             m_pVT->GetLineLeading(m_SecInfo);
-      fBottom = pLine->m_LineInfo.fLineY - pLine->m_LineInfo.fLineDescent;
-      if (IsFloatBigger(point.y, fTop)) {
-        bUp = FALSE;
-      }
-      if (IsFloatSmaller(point.y, fBottom)) {
-        bDown = FALSE;
-      }
-      if (IsFloatSmaller(point.y, fTop)) {
-        nRight = nMid - 1;
-        nMid = (nLeft + nRight) / 2;
-        continue;
-      } else if (IsFloatBigger(point.y, fBottom)) {
-        nLeft = nMid + 1;
-        nMid = (nLeft + nRight) / 2;
-        continue;
-      } else {
-        place = SearchWordPlace(
-            point.x,
-            CPVT_WordRange(pLine->GetNextWordPlace(pLine->GetBeginWordPlace()),
-                           pLine->GetEndWordPlace()));
-        place.nLineIndex = nMid;
-        return place;
-      }
-    }
-  }
-  if (bUp) {
-    place = GetBeginWordPlace();
-  }
-  if (bDown) {
-    place = GetEndWordPlace();
-  }
-  return place;
-}
-CPVT_WordPlace CSection::SearchWordPlace(
-    FX_FLOAT fx,
-    const CPVT_WordPlace& lineplace) const {
-  if (CLine* pLine = m_LineArray.GetAt(lineplace.nLineIndex)) {
-    return SearchWordPlace(
-        fx - m_SecInfo.rcSection.left,
-        CPVT_WordRange(pLine->GetNextWordPlace(pLine->GetBeginWordPlace()),
-                       pLine->GetEndWordPlace()));
-  }
-  return GetBeginWordPlace();
-}
-CPVT_WordPlace CSection::SearchWordPlace(FX_FLOAT fx,
-                                         const CPVT_WordRange& range) const {
-  CPVT_WordPlace wordplace = range.BeginPos;
-  wordplace.nWordIndex = -1;
-  if (!m_pVT) {
-    return wordplace;
-  }
-  int32_t nLeft = range.BeginPos.nWordIndex;
-  int32_t nRight = range.EndPos.nWordIndex + 1;
-  int32_t nMid = (nLeft + nRight) / 2;
-  while (nLeft < nRight) {
-    if (nMid == nLeft) {
-      break;
-    }
-    if (nMid == nRight) {
-      nMid--;
-      break;
-    }
-    if (CPVT_WordInfo* pWord = m_WordArray.GetAt(nMid)) {
-      if (fx > pWord->fWordX + m_pVT->GetWordWidth(*pWord) * PVT_HALF) {
-        nLeft = nMid;
-        nMid = (nLeft + nRight) / 2;
-        continue;
-      } else {
-        nRight = nMid;
-        nMid = (nLeft + nRight) / 2;
-        continue;
-      }
-    } else {
-      break;
-    }
-  }
-  if (CPVT_WordInfo* pWord = m_WordArray.GetAt(nMid)) {
-    if (fx > pWord->fWordX + m_pVT->GetWordWidth(*pWord) * PVT_HALF) {
-      wordplace.nWordIndex = nMid;
-    }
-  }
-  return wordplace;
-}
-void CSection::ClearLeftWords(int32_t nWordIndex) {
-  for (int32_t i = nWordIndex; i >= 0; i--) {
-    delete m_WordArray.GetAt(i);
-    m_WordArray.RemoveAt(i);
-  }
-}
-void CSection::ClearRightWords(int32_t nWordIndex) {
-  for (int32_t i = m_WordArray.GetSize() - 1; i > nWordIndex; i--) {
-    delete m_WordArray.GetAt(i);
-    m_WordArray.RemoveAt(i);
-  }
-}
-void CSection::ClearMidWords(int32_t nBeginIndex, int32_t nEndIndex) {
-  for (int32_t i = nEndIndex; i > nBeginIndex; i--) {
-    delete m_WordArray.GetAt(i);
-    m_WordArray.RemoveAt(i);
-  }
-}
-void CSection::ClearWords(const CPVT_WordRange& PlaceRange) {
-  CPVT_WordPlace SecBeginPos = GetBeginWordPlace();
-  CPVT_WordPlace SecEndPos = GetEndWordPlace();
-  if (PlaceRange.BeginPos.WordCmp(SecBeginPos) >= 0) {
-    if (PlaceRange.EndPos.WordCmp(SecEndPos) <= 0) {
-      ClearMidWords(PlaceRange.BeginPos.nWordIndex,
-                    PlaceRange.EndPos.nWordIndex);
-    } else {
-      ClearRightWords(PlaceRange.BeginPos.nWordIndex);
-    }
-  } else if (PlaceRange.EndPos.WordCmp(SecEndPos) <= 0) {
-    ClearLeftWords(PlaceRange.EndPos.nWordIndex);
-  } else {
-    ResetWordArray();
-  }
-}
-void CSection::ClearWord(const CPVT_WordPlace& place) {
-  delete m_WordArray.GetAt(place.nWordIndex);
-  m_WordArray.RemoveAt(place.nWordIndex);
-}
-CTypeset::CTypeset(CSection* pSection)
-    : m_rcRet(0.0f, 0.0f, 0.0f, 0.0f),
-      m_pVT(pSection->m_pVT),
-      m_pSection(pSection) {}
-CTypeset::~CTypeset() {}
-CPVT_FloatRect CTypeset::CharArray() {
-  ASSERT(m_pSection);
-  FX_FLOAT fLineAscent =
-      m_pVT->GetFontAscent(m_pVT->GetDefaultFontIndex(), m_pVT->GetFontSize());
-  FX_FLOAT fLineDescent =
-      m_pVT->GetFontDescent(m_pVT->GetDefaultFontIndex(), m_pVT->GetFontSize());
-  m_rcRet.Default();
-  FX_FLOAT x = 0.0f, y = 0.0f;
-  FX_FLOAT fNextWidth;
-  int32_t nStart = 0;
-  FX_FLOAT fNodeWidth = m_pVT->GetPlateWidth() /
-                        (m_pVT->m_nCharArray <= 0 ? 1 : m_pVT->m_nCharArray);
-  if (CLine* pLine = m_pSection->m_LineArray.GetAt(0)) {
-    x = 0.0f;
-    y += m_pVT->GetLineLeading(m_pSection->m_SecInfo);
-    y += fLineAscent;
-    nStart = 0;
-    switch (m_pVT->GetAlignment(m_pSection->m_SecInfo)) {
-      case 0:
-        pLine->m_LineInfo.fLineX = fNodeWidth * PVT_HALF;
-        break;
-      case 1:
-        nStart = (m_pVT->m_nCharArray - m_pSection->m_WordArray.GetSize()) / 2;
-        pLine->m_LineInfo.fLineX = fNodeWidth * nStart - fNodeWidth * PVT_HALF;
-        break;
-      case 2:
-        nStart = m_pVT->m_nCharArray - m_pSection->m_WordArray.GetSize();
-        pLine->m_LineInfo.fLineX = fNodeWidth * nStart - fNodeWidth * PVT_HALF;
-        break;
-    }
-    for (int32_t w = 0, sz = m_pSection->m_WordArray.GetSize(); w < sz; w++) {
-      if (w >= m_pVT->m_nCharArray) {
-        break;
-      }
-      fNextWidth = 0;
-      if (CPVT_WordInfo* pNextWord =
-              (CPVT_WordInfo*)m_pSection->m_WordArray.GetAt(w + 1)) {
-        pNextWord->fWordTail = 0;
-        fNextWidth = m_pVT->GetWordWidth(*pNextWord);
-      }
-      if (CPVT_WordInfo* pWord =
-              (CPVT_WordInfo*)m_pSection->m_WordArray.GetAt(w)) {
-        pWord->fWordTail = 0;
-        FX_FLOAT fWordWidth = m_pVT->GetWordWidth(*pWord);
-        FX_FLOAT fWordAscent = m_pVT->GetWordAscent(*pWord);
-        FX_FLOAT fWordDescent = m_pVT->GetWordDescent(*pWord);
-        x = (FX_FLOAT)(fNodeWidth * (w + nStart + 0.5) - fWordWidth * PVT_HALF);
-        pWord->fWordX = x;
-        pWord->fWordY = y;
-        if (w == 0) {
-          pLine->m_LineInfo.fLineX = x;
-        }
-        if (w != m_pSection->m_WordArray.GetSize() - 1) {
-          pWord->fWordTail =
-              (fNodeWidth - (fWordWidth + fNextWidth) * PVT_HALF > 0
-                   ? fNodeWidth - (fWordWidth + fNextWidth) * PVT_HALF
-                   : 0);
-        } else {
-          pWord->fWordTail = 0;
-        }
-        x += fWordWidth;
-        fLineAscent = std::max(fLineAscent, fWordAscent);
-        fLineDescent = std::min(fLineDescent, fWordDescent);
-      }
-    }
-    pLine->m_LineInfo.nBeginWordIndex = 0;
-    pLine->m_LineInfo.nEndWordIndex = m_pSection->m_WordArray.GetSize() - 1;
-    pLine->m_LineInfo.fLineY = y;
-    pLine->m_LineInfo.fLineWidth = x - pLine->m_LineInfo.fLineX;
-    pLine->m_LineInfo.fLineAscent = fLineAscent;
-    pLine->m_LineInfo.fLineDescent = fLineDescent;
-    y += (-fLineDescent);
-  }
-  return m_rcRet = CPVT_FloatRect(0, 0, x, y);
-}
-CPVT_Size CTypeset::GetEditSize(FX_FLOAT fFontSize) {
-  ASSERT(m_pSection);
-  ASSERT(m_pVT);
-  SplitLines(FALSE, fFontSize);
-  return CPVT_Size(m_rcRet.Width(), m_rcRet.Height());
-}
-CPVT_FloatRect CTypeset::Typeset() {
-  ASSERT(m_pVT);
-  m_pSection->m_LineArray.Empty();
-  SplitLines(TRUE, 0.0f);
-  m_pSection->m_LineArray.Clear();
-  OutputLines();
-  return m_rcRet;
-}
-
-static const uint8_t special_chars[128] = {
-    0x00, 0x0C, 0x08, 0x0C, 0x08, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x08, 0x00,
-    0x10, 0x00, 0x00, 0x28, 0x0C, 0x08, 0x00, 0x00, 0x28, 0x28, 0x28, 0x28,
-    0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x08, 0x08,
-    0x00, 0x00, 0x00, 0x08, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x0C, 0x00, 0x08, 0x00, 0x00,
-    0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-    0x01, 0x01, 0x01, 0x0C, 0x00, 0x08, 0x00, 0x00,
-};
-
-static bool IsLatin(uint16_t word) {
-  if (word <= 0x007F)
-    return !!(special_chars[word] & 0x01);
-
-  return ((word >= 0x00C0 && word <= 0x00FF) ||
-          (word >= 0x0100 && word <= 0x024F) ||
-          (word >= 0x1E00 && word <= 0x1EFF) ||
-          (word >= 0x2C60 && word <= 0x2C7F) ||
-          (word >= 0xA720 && word <= 0xA7FF) ||
-          (word >= 0xFF21 && word <= 0xFF3A) ||
-          (word >= 0xFF41 && word <= 0xFF5A));
-}
-
-static bool IsDigit(uint32_t word) {
-  return word >= 0x0030 && word <= 0x0039;
-}
-
-static bool IsCJK(uint32_t word) {
-  if ((word >= 0x1100 && word <= 0x11FF) ||
-      (word >= 0x2E80 && word <= 0x2FFF) ||
-      (word >= 0x3040 && word <= 0x9FBF) ||
-      (word >= 0xAC00 && word <= 0xD7AF) ||
-      (word >= 0xF900 && word <= 0xFAFF) ||
-      (word >= 0xFE30 && word <= 0xFE4F) ||
-      (word >= 0x20000 && word <= 0x2A6DF) ||
-      (word >= 0x2F800 && word <= 0x2FA1F)) {
-    return true;
-  }
-  if (word >= 0x3000 && word <= 0x303F) {
-    return (
-        word == 0x3005 || word == 0x3006 || word == 0x3021 || word == 0x3022 ||
-        word == 0x3023 || word == 0x3024 || word == 0x3025 || word == 0x3026 ||
-        word == 0x3027 || word == 0x3028 || word == 0x3029 || word == 0x3031 ||
-        word == 0x3032 || word == 0x3033 || word == 0x3034 || word == 0x3035);
-  }
-  return word >= 0xFF66 && word <= 0xFF9D;
-}
-
-static bool IsPunctuation(uint32_t word) {
-  if (word <= 0x007F)
-    return !!(special_chars[word] & 0x08);
-
-  if (word >= 0x0080 && word <= 0x00FF) {
-    return (word == 0x0082 || word == 0x0084 || word == 0x0085 ||
-            word == 0x0091 || word == 0x0092 || word == 0x0093 ||
-            word <= 0x0094 || word == 0x0096 || word == 0x00B4 ||
-            word == 0x00B8);
-  }
-
-  if (word >= 0x2000 && word <= 0x206F) {
-    return (
-        word == 0x2010 || word == 0x2011 || word == 0x2012 || word == 0x2013 ||
-        word == 0x2018 || word == 0x2019 || word == 0x201A || word == 0x201B ||
-        word == 0x201C || word == 0x201D || word == 0x201E || word == 0x201F ||
-        word == 0x2032 || word == 0x2033 || word == 0x2034 || word == 0x2035 ||
-        word == 0x2036 || word == 0x2037 || word == 0x203C || word == 0x203D ||
-        word == 0x203E || word == 0x2044);
-  }
-
-  if (word >= 0x3000 && word <= 0x303F) {
-    return (
-        word == 0x3001 || word == 0x3002 || word == 0x3003 || word == 0x3005 ||
-        word == 0x3009 || word == 0x300A || word == 0x300B || word == 0x300C ||
-        word == 0x300D || word == 0x300F || word == 0x300E || word == 0x3010 ||
-        word == 0x3011 || word == 0x3014 || word == 0x3015 || word == 0x3016 ||
-        word == 0x3017 || word == 0x3018 || word == 0x3019 || word == 0x301A ||
-        word == 0x301B || word == 0x301D || word == 0x301E || word == 0x301F);
-  }
-
-  if (word >= 0xFE50 && word <= 0xFE6F)
-    return (word >= 0xFE50 && word <= 0xFE5E) || word == 0xFE63;
-
-  if (word >= 0xFF00 && word <= 0xFFEF) {
-    return (
-        word == 0xFF01 || word == 0xFF02 || word == 0xFF07 || word == 0xFF08 ||
-        word == 0xFF09 || word == 0xFF0C || word == 0xFF0E || word == 0xFF0F ||
-        word == 0xFF1A || word == 0xFF1B || word == 0xFF1F || word == 0xFF3B ||
-        word == 0xFF3D || word == 0xFF40 || word == 0xFF5B || word == 0xFF5C ||
-        word == 0xFF5D || word == 0xFF61 || word == 0xFF62 || word == 0xFF63 ||
-        word == 0xFF64 || word == 0xFF65 || word == 0xFF9E || word == 0xFF9F);
-  }
-
-  return false;
-}
-
-static bool IsConnectiveSymbol(uint32_t word) {
-  return word <= 0x007F && (special_chars[word] & 0x20);
-}
-
-static bool IsOpenStylePunctuation(uint32_t word) {
-  if (word <= 0x007F)
-    return !!(special_chars[word] & 0x04);
-
-  return (word == 0x300A || word == 0x300C || word == 0x300E ||
-          word == 0x3010 || word == 0x3014 || word == 0x3016 ||
-          word == 0x3018 || word == 0x301A || word == 0xFF08 ||
-          word == 0xFF3B || word == 0xFF5B || word == 0xFF62);
-}
-
-static bool IsCurrencySymbol(uint16_t word) {
-  return (word == 0x0024 || word == 0x0080 || word == 0x00A2 ||
-          word == 0x00A3 || word == 0x00A4 || word == 0x00A5 ||
-          (word >= 0x20A0 && word <= 0x20CF) || word == 0xFE69 ||
-          word == 0xFF04 || word == 0xFFE0 || word == 0xFFE1 ||
-          word == 0xFFE5 || word == 0xFFE6);
-}
-
-static bool IsPrefixSymbol(uint16_t word) {
-  return IsCurrencySymbol(word) || word == 0x2116;
-}
-
-static bool IsSpace(uint16_t word) {
-  return word == 0x0020 || word == 0x3000;
-}
-
-static bool NeedDivision(uint16_t prevWord, uint16_t curWord) {
-  if ((IsLatin(prevWord) || IsDigit(prevWord)) &&
-      (IsLatin(curWord) || IsDigit(curWord))) {
-    return false;
-  }
-  if (IsSpace(curWord) || IsPunctuation(curWord)) {
-    return false;
-  }
-  if (IsConnectiveSymbol(prevWord) || IsConnectiveSymbol(curWord)) {
-    return false;
-  }
-  if (IsSpace(prevWord) || IsPunctuation(prevWord)) {
-    return true;
-  }
-  if (IsPrefixSymbol(prevWord)) {
-    return false;
-  }
-  if (IsPrefixSymbol(curWord) || IsCJK(curWord)) {
-    return true;
-  }
-  if (IsCJK(prevWord)) {
-    return true;
-  }
-  return false;
-}
-
-void CTypeset::SplitLines(FX_BOOL bTypeset, FX_FLOAT fFontSize) {
-  ASSERT(m_pVT);
-  ASSERT(m_pSection);
-  int32_t nLineHead = 0;
-  int32_t nLineTail = 0;
-  FX_FLOAT fMaxX = 0.0f, fMaxY = 0.0f;
-  FX_FLOAT fLineWidth = 0.0f, fBackupLineWidth = 0.0f;
-  FX_FLOAT fLineAscent = 0.0f, fBackupLineAscent = 0.0f;
-  FX_FLOAT fLineDescent = 0.0f, fBackupLineDescent = 0.0f;
-  int32_t nWordStartPos = 0;
-  FX_BOOL bFullWord = FALSE;
-  int32_t nLineFullWordIndex = 0;
-  int32_t nCharIndex = 0;
-  CPVT_LineInfo line;
-  FX_FLOAT fWordWidth = 0;
-  FX_FLOAT fTypesetWidth = std::max(
-      m_pVT->GetPlateWidth() - m_pVT->GetLineIndent(m_pSection->m_SecInfo),
-      0.0f);
-  int32_t nTotalWords = m_pSection->m_WordArray.GetSize();
-  FX_BOOL bOpened = FALSE;
-  if (nTotalWords > 0) {
-    int32_t i = 0;
-    while (i < nTotalWords) {
-      CPVT_WordInfo* pWord = m_pSection->m_WordArray.GetAt(i);
-      CPVT_WordInfo* pOldWord = pWord;
-      if (i > 0) {
-        pOldWord = m_pSection->m_WordArray.GetAt(i - 1);
-      }
-      if (pWord) {
-        if (bTypeset) {
-          fLineAscent =
-              std::max(fLineAscent, m_pVT->GetWordAscent(*pWord, TRUE));
-          fLineDescent =
-              std::min(fLineDescent, m_pVT->GetWordDescent(*pWord, TRUE));
-          fWordWidth = m_pVT->GetWordWidth(*pWord);
-        } else {
-          fLineAscent =
-              std::max(fLineAscent, m_pVT->GetWordAscent(*pWord, fFontSize));
-          fLineDescent =
-              std::min(fLineDescent, m_pVT->GetWordDescent(*pWord, fFontSize));
-          fWordWidth = m_pVT->GetWordWidth(
-              pWord->nFontIndex, pWord->Word, m_pVT->m_wSubWord,
-              m_pVT->m_fCharSpace, m_pVT->m_nHorzScale, fFontSize,
-              pWord->fWordTail, 0);
-        }
-        if (!bOpened) {
-          if (IsOpenStylePunctuation(pWord->Word)) {
-            bOpened = TRUE;
-            bFullWord = TRUE;
-          } else if (pOldWord) {
-            if (NeedDivision(pOldWord->Word, pWord->Word)) {
-              bFullWord = TRUE;
-            }
-          }
-        } else {
-          if (!IsSpace(pWord->Word) && !IsOpenStylePunctuation(pWord->Word)) {
-            bOpened = FALSE;
-          }
-        }
-        if (bFullWord) {
-          bFullWord = FALSE;
-          if (nCharIndex > 0) {
-            nLineFullWordIndex++;
-          }
-          nWordStartPos = i;
-          fBackupLineWidth = fLineWidth;
-          fBackupLineAscent = fLineAscent;
-          fBackupLineDescent = fLineDescent;
-        }
-        nCharIndex++;
-      }
-      if (m_pVT->m_bLimitWidth && fTypesetWidth > 0 &&
-          fLineWidth + fWordWidth > fTypesetWidth) {
-        if (nLineFullWordIndex > 0) {
-          i = nWordStartPos;
-          fLineWidth = fBackupLineWidth;
-          fLineAscent = fBackupLineAscent;
-          fLineDescent = fBackupLineDescent;
-        }
-        if (nCharIndex == 1) {
-          fLineWidth = fWordWidth;
-          i++;
-        }
-        nLineTail = i - 1;
-        if (bTypeset) {
-          line.nBeginWordIndex = nLineHead;
-          line.nEndWordIndex = nLineTail;
-          line.nTotalWord = nLineTail - nLineHead + 1;
-          line.fLineWidth = fLineWidth;
-          line.fLineAscent = fLineAscent;
-          line.fLineDescent = fLineDescent;
-          m_pSection->AddLine(line);
-        }
-        fMaxY += (fLineAscent + m_pVT->GetLineLeading(m_pSection->m_SecInfo));
-        fMaxY += (-fLineDescent);
-        fMaxX = std::max(fLineWidth, fMaxX);
-        nLineHead = i;
-        fLineWidth = 0.0f;
-        fLineAscent = 0.0f;
-        fLineDescent = 0.0f;
-        nCharIndex = 0;
-        nLineFullWordIndex = 0;
-        bFullWord = FALSE;
-      } else {
-        fLineWidth += fWordWidth;
-        i++;
-      }
-    }
-    if (nLineHead <= nTotalWords - 1) {
-      nLineTail = nTotalWords - 1;
-      if (bTypeset) {
-        line.nBeginWordIndex = nLineHead;
-        line.nEndWordIndex = nLineTail;
-        line.nTotalWord = nLineTail - nLineHead + 1;
-        line.fLineWidth = fLineWidth;
-        line.fLineAscent = fLineAscent;
-        line.fLineDescent = fLineDescent;
-        m_pSection->AddLine(line);
-      }
-      fMaxY += (fLineAscent + m_pVT->GetLineLeading(m_pSection->m_SecInfo));
-      fMaxY += (-fLineDescent);
-      fMaxX = std::max(fLineWidth, fMaxX);
-    }
-  } else {
-    if (bTypeset) {
-      fLineAscent = m_pVT->GetLineAscent(m_pSection->m_SecInfo);
-      fLineDescent = m_pVT->GetLineDescent(m_pSection->m_SecInfo);
-    } else {
-      fLineAscent =
-          m_pVT->GetFontAscent(m_pVT->GetDefaultFontIndex(), fFontSize);
-      fLineDescent =
-          m_pVT->GetFontDescent(m_pVT->GetDefaultFontIndex(), fFontSize);
-    }
-    if (bTypeset) {
-      line.nBeginWordIndex = -1;
-      line.nEndWordIndex = -1;
-      line.nTotalWord = 0;
-      line.fLineWidth = 0;
-      line.fLineAscent = fLineAscent;
-      line.fLineDescent = fLineDescent;
-      m_pSection->AddLine(line);
-    }
-    fMaxY += (m_pVT->GetLineLeading(m_pSection->m_SecInfo) + fLineAscent +
-              (-fLineDescent));
-  }
-  m_rcRet = CPVT_FloatRect(0, 0, fMaxX, fMaxY);
-}
-void CTypeset::OutputLines() {
-  ASSERT(m_pVT);
-  ASSERT(m_pSection);
-  FX_FLOAT fMinX = 0.0f, fMinY = 0.0f, fMaxX = 0.0f, fMaxY = 0.0f;
-  FX_FLOAT fPosX = 0.0f, fPosY = 0.0f;
-  FX_FLOAT fLineIndent = m_pVT->GetLineIndent(m_pSection->m_SecInfo);
-  FX_FLOAT fTypesetWidth = std::max(m_pVT->GetPlateWidth() - fLineIndent, 0.0f);
-  switch (m_pVT->GetAlignment(m_pSection->m_SecInfo)) {
-    default:
-    case 0:
-      fMinX = 0.0f;
-      break;
-    case 1:
-      fMinX = (fTypesetWidth - m_rcRet.Width()) * PVT_HALF;
-      break;
-    case 2:
-      fMinX = fTypesetWidth - m_rcRet.Width();
-      break;
-  }
-  fMaxX = fMinX + m_rcRet.Width();
-  fMinY = 0.0f;
-  fMaxY = m_rcRet.Height();
-  int32_t nTotalLines = m_pSection->m_LineArray.GetSize();
-  if (nTotalLines > 0) {
-    m_pSection->m_SecInfo.nTotalLine = nTotalLines;
-    for (int32_t l = 0; l < nTotalLines; l++) {
-      if (CLine* pLine = m_pSection->m_LineArray.GetAt(l)) {
-        switch (m_pVT->GetAlignment(m_pSection->m_SecInfo)) {
-          default:
-          case 0:
-            fPosX = 0;
-            break;
-          case 1:
-            fPosX = (fTypesetWidth - pLine->m_LineInfo.fLineWidth) * PVT_HALF;
-            break;
-          case 2:
-            fPosX = fTypesetWidth - pLine->m_LineInfo.fLineWidth;
-            break;
-        }
-        fPosX += fLineIndent;
-        fPosY += m_pVT->GetLineLeading(m_pSection->m_SecInfo);
-        fPosY += pLine->m_LineInfo.fLineAscent;
-        pLine->m_LineInfo.fLineX = fPosX - fMinX;
-        pLine->m_LineInfo.fLineY = fPosY - fMinY;
-        for (int32_t w = pLine->m_LineInfo.nBeginWordIndex;
-             w <= pLine->m_LineInfo.nEndWordIndex; w++) {
-          if (CPVT_WordInfo* pWord = m_pSection->m_WordArray.GetAt(w)) {
-            pWord->fWordX = fPosX - fMinX;
-            if (pWord->pWordProps) {
-              switch (pWord->pWordProps->nScriptType) {
-                default:
-                case PVTWORD_SCRIPT_NORMAL:
-                  pWord->fWordY = fPosY - fMinY;
-                  break;
-                case PVTWORD_SCRIPT_SUPER:
-                  pWord->fWordY = fPosY - m_pVT->GetWordAscent(*pWord) - fMinY;
-                  break;
-                case PVTWORD_SCRIPT_SUB:
-                  pWord->fWordY = fPosY - m_pVT->GetWordDescent(*pWord) - fMinY;
-                  break;
-              }
-            } else {
-              pWord->fWordY = fPosY - fMinY;
-            }
-            fPosX += m_pVT->GetWordWidth(*pWord);
-          }
-        }
-        fPosY += (-pLine->m_LineInfo.fLineDescent);
-      }
-    }
-  }
-  m_rcRet = CPVT_FloatRect(fMinX, fMinY, fMaxX, fMaxY);
-}
+  line.lineplace = CPVT_WordPlace(m_CurPos.nSecIndex, m_CurPos.nLineIndex, -1);
+  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
+    if (CLine* pLine = pSection->m_LineArray.GetAt(m_CurPos.nLineIndex)) {
+      line.ptLine = m_pVT->InToOut(CFX_FloatPoint(
+          pLine->m_LineInfo.fLineX + pSection->m_SecInfo.rcSection.left,
+          pLine->m_LineInfo.fLineY + pSection->m_SecInfo.rcSection.top));
+      line.fLineWidth = pLine->m_LineInfo.fLineWidth;
+      line.fLineAscent = pLine->m_LineInfo.fLineAscent;
+      line.fLineDescent = pLine->m_LineInfo.fLineDescent;
+      line.lineEnd = pLine->GetEndWordPlace();
+      return TRUE;
+    }
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDF_VariableText::Iterator::GetSection(CPVT_Section& section) const {
+  section.secplace = CPVT_WordPlace(m_CurPos.nSecIndex, 0, -1);
+  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
+    section.rcSection = m_pVT->InToOut(pSection->m_SecInfo.rcSection);
+    if (pSection->m_SecInfo.pSecProps)
+      section.SecProps = *pSection->m_SecInfo.pSecProps;
+    if (pSection->m_SecInfo.pWordProps)
+      section.WordProps = *pSection->m_SecInfo.pWordProps;
+    return TRUE;
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDF_VariableText::Iterator::SetSection(const CPVT_Section& section) {
+  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
+    if (pSection->m_SecInfo.pSecProps)
+      *pSection->m_SecInfo.pSecProps = section.SecProps;
+    if (pSection->m_SecInfo.pWordProps)
+      *pSection->m_SecInfo.pWordProps = section.WordProps;
+    return TRUE;
+  }
+  return FALSE;
+}
+
 CPDF_VariableText::CPDF_VariableText()
     : m_nLimitChar(0),
       m_nCharArray(0),
       m_bMultiLine(FALSE),
       m_bLimitWidth(FALSE),
       m_bAutoFontSize(FALSE),
       m_nAlignment(0),
       m_fLineLeading(0.0f),
       m_fCharSpace(0.0f),
       m_nHorzScale(100),
       m_wSubWord(0),
       m_fFontSize(0.0f),
       m_bInitial(FALSE),
       m_bRichText(FALSE),
-      m_pVTProvider(NULL),
-      m_pVTIterator(NULL) {}
+      m_pVTProvider(nullptr),
+      m_pVTIterator(nullptr) {}
+
 CPDF_VariableText::~CPDF_VariableText() {
   delete m_pVTIterator;
-  m_pVTIterator = NULL;
   ResetAll();
 }
+
 void CPDF_VariableText::Initialize() {
   if (!m_bInitial) {
     CPVT_SectionInfo secinfo;
     if (m_bRichText) {
       secinfo.pSecProps = new CPVT_SecProps(0.0f, 0.0f, 0);
-      secinfo.pWordProps = new CPVT_WordProps(GetDefaultFontIndex(),
-                                              PVT_DEFAULT_FONTSIZE, 0, 0, 0);
+      secinfo.pWordProps = new CPVT_WordProps(
+          GetDefaultFontIndex(), kDefaultFontSize, 0, ScriptType::Normal, 0);
     }
     CPVT_WordPlace place;
     place.nSecIndex = 0;
     AddSection(place, secinfo);
     CPVT_LineInfo lineinfo;
     lineinfo.fLineAscent = GetFontAscent(GetDefaultFontIndex(), GetFontSize());
     lineinfo.fLineDescent =
         GetFontDescent(GetDefaultFontIndex(), GetFontSize());
     AddLine(place, lineinfo);
-    if (CSection* pSection = m_SectionArray.GetAt(0)) {
+    if (CSection* pSection = m_SectionArray.GetAt(0))
       pSection->ResetLinePlace();
-    }
+
     m_bInitial = TRUE;
   }
 }
+
 void CPDF_VariableText::ResetAll() {
   m_bInitial = FALSE;
   ResetSectionArray();
 }
+
 CPVT_WordPlace CPDF_VariableText::InsertWord(const CPVT_WordPlace& place,
                                              uint16_t word,
                                              int32_t charset,
                                              const CPVT_WordProps* pWordProps) {
   int32_t nTotlaWords = GetTotalWords();
-  if (m_nLimitChar > 0 && nTotlaWords >= m_nLimitChar) {
+  if (m_nLimitChar > 0 && nTotlaWords >= m_nLimitChar)
     return place;
-  }
-  if (m_nCharArray > 0 && nTotlaWords >= m_nCharArray) {
+  if (m_nCharArray > 0 && nTotlaWords >= m_nCharArray)
     return place;
-  }
+
   CPVT_WordPlace newplace = place;
   newplace.nWordIndex++;
   if (m_bRichText) {
     CPVT_WordProps* pNewProps =
         pWordProps ? new CPVT_WordProps(*pWordProps) : new CPVT_WordProps();
     pNewProps->nFontIndex =
         GetWordFontIndex(word, charset, pWordProps->nFontIndex);
     return AddWord(newplace, CPVT_WordInfo(word, charset, -1, pNewProps));
   }
   int32_t nFontIndex =
       GetSubWord() > 0 ? GetDefaultFontIndex()
                        : GetWordFontIndex(word, charset, GetDefaultFontIndex());
   return AddWord(newplace, CPVT_WordInfo(word, charset, nFontIndex, NULL));
 }
+
 CPVT_WordPlace CPDF_VariableText::InsertSection(
     const CPVT_WordPlace& place,
     const CPVT_SecProps* pSecProps,
     const CPVT_WordProps* pWordProps) {
   int32_t nTotlaWords = GetTotalWords();
-  if (m_nLimitChar > 0 && nTotlaWords >= m_nLimitChar) {
+  if (m_nLimitChar > 0 && nTotlaWords >= m_nLimitChar)
     return place;
-  }
-  if (m_nCharArray > 0 && nTotlaWords >= m_nCharArray) {
+  if (m_nCharArray > 0 && nTotlaWords >= m_nCharArray)
     return place;
-  }
-  if (!m_bMultiLine) {
+  if (!m_bMultiLine)
     return place;
-  }
+
   CPVT_WordPlace wordplace = place;
   UpdateWordPlace(wordplace);
   CPVT_WordPlace newplace = place;
   if (CSection* pSection = m_SectionArray.GetAt(wordplace.nSecIndex)) {
     CPVT_WordPlace NewPlace(wordplace.nSecIndex + 1, 0, -1);
     CPVT_SectionInfo secinfo;
     if (m_bRichText) {
-      if (pSecProps) {
+      if (pSecProps)
         secinfo.pSecProps = new CPVT_SecProps(*pSecProps);
-      }
-      if (pWordProps) {
+      if (pWordProps)
         secinfo.pWordProps = new CPVT_WordProps(*pWordProps);
-      }
     }
     AddSection(NewPlace, secinfo);
     newplace = NewPlace;
     if (CSection* pNewSection = m_SectionArray.GetAt(NewPlace.nSecIndex)) {
       for (int32_t w = wordplace.nWordIndex + 1,
                    sz = pSection->m_WordArray.GetSize();
            w < sz; w++) {
         if (CPVT_WordInfo* pWord = pSection->m_WordArray.GetAt(w)) {
           NewPlace.nWordIndex++;
           pNewSection->AddWord(NewPlace, *pWord);
         }
       }
     }
     ClearSectionRightWords(wordplace);
   }
   return newplace;
 }
+
 CPVT_WordPlace CPDF_VariableText::InsertText(const CPVT_WordPlace& place,
                                              const FX_WCHAR* text,
                                              int32_t charset,
                                              const CPVT_SecProps* pSecProps,
                                              const CPVT_WordProps* pProps) {
   CFX_WideString swText = text;
   CPVT_WordPlace wp = place;
   for (int32_t i = 0, sz = swText.GetLength(); i < sz; i++) {
     CPVT_WordPlace oldwp = wp;
     uint16_t word = swText.GetAt(i);
     switch (word) {
       case 0x0D:
         if (m_bMultiLine) {
-          if (swText.GetAt(i + 1) == 0x0A) {
+          if (swText.GetAt(i + 1) == 0x0A)
             i += 1;
-          }
+
           wp = InsertSection(wp, pSecProps, pProps);
         }
         break;
       case 0x0A:
         if (m_bMultiLine) {
-          if (swText.GetAt(i + 1) == 0x0D) {
+          if (swText.GetAt(i + 1) == 0x0D)
             i += 1;
-          }
+
           wp = InsertSection(wp, pSecProps, pProps);
         }
         break;
       case 0x09:
         word = 0x20;
       default:
         wp = InsertWord(wp, word, charset, pProps);
         break;
     }
-    if (wp == oldwp) {
+    if (wp == oldwp)
       break;
-    }
   }
   return wp;
 }
+
 CPVT_WordPlace CPDF_VariableText::DeleteWords(
     const CPVT_WordRange& PlaceRange) {
   FX_BOOL bLastSecPos = FALSE;
-  if (CSection* pSection = m_SectionArray.GetAt(PlaceRange.EndPos.nSecIndex)) {
+  if (CSection* pSection = m_SectionArray.GetAt(PlaceRange.EndPos.nSecIndex))
     bLastSecPos = (PlaceRange.EndPos == pSection->GetEndWordPlace());
-  }
+
   ClearWords(PlaceRange);
   if (PlaceRange.BeginPos.nSecIndex != PlaceRange.EndPos.nSecIndex) {
     ClearEmptySections(PlaceRange);
-    if (!bLastSecPos) {
+    if (!bLastSecPos)
       LinkLatterSection(PlaceRange.BeginPos);
-    }
   }
   return PlaceRange.BeginPos;
 }
+
 CPVT_WordPlace CPDF_VariableText::DeleteWord(const CPVT_WordPlace& place) {
   return ClearRightWord(AdjustLineHeader(place, TRUE));
 }
+
 CPVT_WordPlace CPDF_VariableText::BackSpaceWord(const CPVT_WordPlace& place) {
   return ClearLeftWord(AdjustLineHeader(place, TRUE));
 }
+
 void CPDF_VariableText::SetText(const FX_WCHAR* text,
                                 int32_t charset,
                                 const CPVT_SecProps* pSecProps,
                                 const CPVT_WordProps* pWordProps) {
   DeleteWords(CPVT_WordRange(GetBeginWordPlace(), GetEndWordPlace()));
   CFX_WideString swText = text;
   CPVT_WordPlace wp(0, 0, -1);
   CPVT_SectionInfo secinfo;
   if (m_bRichText) {
-    if (pSecProps) {
+    if (pSecProps)
       secinfo.pSecProps = new CPVT_SecProps(*pSecProps);
-    }
-    if (pWordProps) {
+    if (pWordProps)
       secinfo.pWordProps = new CPVT_WordProps(*pWordProps);
-    }
   }
-  if (CSection* pSection = m_SectionArray.GetAt(0)) {
+  if (CSection* pSection = m_SectionArray.GetAt(0))
     pSection->m_SecInfo = secinfo;
-  }
+
   int32_t nCharCount = 0;
   for (int32_t i = 0, sz = swText.GetLength(); i < sz; i++) {
-    if (m_nLimitChar > 0 && nCharCount >= m_nLimitChar) {
+    if (m_nLimitChar > 0 && nCharCount >= m_nLimitChar)
       break;
-    }
-    if (m_nCharArray > 0 && nCharCount >= m_nCharArray) {
+    if (m_nCharArray > 0 && nCharCount >= m_nCharArray)
       break;
-    }
+
     uint16_t word = swText.GetAt(i);
     switch (word) {
       case 0x0D:
         if (m_bMultiLine) {
-          if (swText.GetAt(i + 1) == 0x0A) {
+          if (swText.GetAt(i + 1) == 0x0A)
             i += 1;
-          }
+
           wp.nSecIndex++;
           wp.nLineIndex = 0;
           wp.nWordIndex = -1;
           AddSection(wp, secinfo);
         }
         break;
       case 0x0A:
         if (m_bMultiLine) {
-          if (swText.GetAt(i + 1) == 0x0D) {
+          if (swText.GetAt(i + 1) == 0x0D)
             i += 1;
-          }
+
           wp.nSecIndex++;
           wp.nLineIndex = 0;
           wp.nWordIndex = -1;
           AddSection(wp, secinfo);
         }
         break;
       case 0x09:
         word = 0x20;
       default:
         wp = InsertWord(wp, word, charset, pWordProps);
         break;
     }
     nCharCount++;
   }
 }
+
 void CPDF_VariableText::UpdateWordPlace(CPVT_WordPlace& place) const {
-  if (place.nSecIndex < 0) {
+  if (place.nSecIndex < 0)
     place = GetBeginWordPlace();
-  }
-  if (place.nSecIndex >= m_SectionArray.GetSize()) {
+  if (place.nSecIndex >= m_SectionArray.GetSize())
     place = GetEndWordPlace();
-  }
+
   place = AdjustLineHeader(place, TRUE);
-  if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
+  if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex))
     pSection->UpdateWordPlace(place);
-  }
 }
+
 int32_t CPDF_VariableText::WordPlaceToWordIndex(
     const CPVT_WordPlace& place) const {
   CPVT_WordPlace newplace = place;
   UpdateWordPlace(newplace);
   int32_t nIndex = 0;
   int32_t i = 0;
   int32_t sz = 0;
   for (i = 0, sz = m_SectionArray.GetSize(); i < sz && i < newplace.nSecIndex;
        i++) {
     if (CSection* pSection = m_SectionArray.GetAt(i)) {
       nIndex += pSection->m_WordArray.GetSize();
-      if (i != m_SectionArray.GetSize() - 1) {
-        nIndex += PVT_RETURN_LENGTH;
-      }
+      if (i != m_SectionArray.GetSize() - 1)
+        nIndex += kReturnLength;
     }
   }
-  if (i >= 0 && i < m_SectionArray.GetSize()) {
-    nIndex += newplace.nWordIndex + PVT_RETURN_LENGTH;
-  }
+  if (i >= 0 && i < m_SectionArray.GetSize())
+    nIndex += newplace.nWordIndex + kReturnLength;
   return nIndex;
 }
+
 CPVT_WordPlace CPDF_VariableText::WordIndexToWordPlace(int32_t index) const {
   CPVT_WordPlace place = GetBeginWordPlace();
   int32_t nOldIndex = 0, nIndex = 0;
   FX_BOOL bFind = FALSE;
   for (int32_t i = 0, sz = m_SectionArray.GetSize(); i < sz; i++) {
     if (CSection* pSection = m_SectionArray.GetAt(i)) {
       nIndex += pSection->m_WordArray.GetSize();
       if (nIndex == index) {
         place = pSection->GetEndWordPlace();
         bFind = TRUE;
         break;
       } else if (nIndex > index) {
         place.nSecIndex = i;
         place.nWordIndex = index - nOldIndex - 1;
         pSection->UpdateWordPlace(place);
         bFind = TRUE;
         break;
       }
-      if (i != m_SectionArray.GetSize() - 1) {
-        nIndex += PVT_RETURN_LENGTH;
-      }
+      if (i != m_SectionArray.GetSize() - 1)
+        nIndex += kReturnLength;
       nOldIndex = nIndex;
     }
   }
-  if (!bFind) {
+  if (!bFind)
     place = GetEndWordPlace();
-  }
   return place;
 }
+
 CPVT_WordPlace CPDF_VariableText::GetBeginWordPlace() const {
   return m_bInitial ? CPVT_WordPlace(0, 0, -1) : CPVT_WordPlace();
 }
+
 CPVT_WordPlace CPDF_VariableText::GetEndWordPlace() const {
-  if (CSection* pSection = m_SectionArray.GetAt(m_SectionArray.GetSize() - 1)) {
+  if (CSection* pSection = m_SectionArray.GetAt(m_SectionArray.GetSize() - 1))
     return pSection->GetEndWordPlace();
-  }
   return CPVT_WordPlace();
 }
+
 CPVT_WordPlace CPDF_VariableText::GetPrevWordPlace(
     const CPVT_WordPlace& place) const {
-  if (place.nSecIndex < 0) {
+  if (place.nSecIndex < 0)
     return GetBeginWordPlace();
-  }
-  if (place.nSecIndex >= m_SectionArray.GetSize()) {
+  if (place.nSecIndex >= m_SectionArray.GetSize())
     return GetEndWordPlace();
-  }
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     if (place.WordCmp(pSection->GetBeginWordPlace()) <= 0) {
-      if (CSection* pPrevSection = m_SectionArray.GetAt(place.nSecIndex - 1)) {
+      if (CSection* pPrevSection = m_SectionArray.GetAt(place.nSecIndex - 1))
         return pPrevSection->GetEndWordPlace();
-      }
       return GetBeginWordPlace();
     }
     return pSection->GetPrevWordPlace(place);
   }
   return place;
 }
+
 CPVT_WordPlace CPDF_VariableText::GetNextWordPlace(
     const CPVT_WordPlace& place) const {
-  if (place.nSecIndex < 0) {
+  if (place.nSecIndex < 0)
     return GetBeginWordPlace();
-  }
-  if (place.nSecIndex >= m_SectionArray.GetSize()) {
+  if (place.nSecIndex >= m_SectionArray.GetSize())
     return GetEndWordPlace();
-  }
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     if (place.WordCmp(pSection->GetEndWordPlace()) >= 0) {
-      if (CSection* pNextSection = m_SectionArray.GetAt(place.nSecIndex + 1)) {
+      if (CSection* pNextSection = m_SectionArray.GetAt(place.nSecIndex + 1))
         return pNextSection->GetBeginWordPlace();
-      }
       return GetEndWordPlace();
     }
     return pSection->GetNextWordPlace(place);
   }
   return place;
 }
+
 CPVT_WordPlace CPDF_VariableText::SearchWordPlace(
     const CFX_FloatPoint& point) const {
   CFX_FloatPoint pt = OutToIn(point);
   CPVT_WordPlace place = GetBeginWordPlace();
   int32_t nLeft = 0;
   int32_t nRight = m_SectionArray.GetSize() - 1;
   int32_t nMid = m_SectionArray.GetSize() / 2;
   FX_BOOL bUp = TRUE;
   FX_BOOL bDown = TRUE;
   while (nLeft <= nRight) {
@@ skipping 16 matching lines @@
         place = pSection->SearchWordPlace(
             CFX_FloatPoint(pt.x - pSection->m_SecInfo.rcSection.left,
                            pt.y - pSection->m_SecInfo.rcSection.top));
         place.nSecIndex = nMid;
         return place;
       }
     } else {
       break;
     }
   }
-  if (bUp) {
+  if (bUp)
     place = GetBeginWordPlace();
-  }
-  if (bDown) {
+  if (bDown)
     place = GetEndWordPlace();
-  }
   return place;
 }
+
 CPVT_WordPlace CPDF_VariableText::GetUpWordPlace(
     const CPVT_WordPlace& place,
     const CFX_FloatPoint& point) const {
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     CPVT_WordPlace temp = place;
     CFX_FloatPoint pt = OutToIn(point);
     if (temp.nLineIndex-- > 0) {
       return pSection->SearchWordPlace(
           pt.x - pSection->m_SecInfo.rcSection.left, temp);
     }
     if (temp.nSecIndex-- > 0) {
       if (CSection* pLastSection = m_SectionArray.GetAt(temp.nSecIndex)) {
         temp.nLineIndex = pLastSection->m_LineArray.GetSize() - 1;
         return pLastSection->SearchWordPlace(
             pt.x - pLastSection->m_SecInfo.rcSection.left, temp);
       }
     }
   }
   return place;
 }
+
 CPVT_WordPlace CPDF_VariableText::GetDownWordPlace(
     const CPVT_WordPlace& place,
     const CFX_FloatPoint& point) const {
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     CPVT_WordPlace temp = place;
     CFX_FloatPoint pt = OutToIn(point);
     if (temp.nLineIndex++ < pSection->m_LineArray.GetSize() - 1) {
       return pSection->SearchWordPlace(
           pt.x - pSection->m_SecInfo.rcSection.left, temp);
     }
     if (temp.nSecIndex++ < m_SectionArray.GetSize() - 1) {
       if (CSection* pNextSection = m_SectionArray.GetAt(temp.nSecIndex)) {
         temp.nLineIndex = 0;
         return pNextSection->SearchWordPlace(
             pt.x - pSection->m_SecInfo.rcSection.left, temp);
       }
     }
   }
   return place;
 }
+
 CPVT_WordPlace CPDF_VariableText::GetLineBeginPlace(
     const CPVT_WordPlace& place) const {
   return CPVT_WordPlace(place.nSecIndex, place.nLineIndex, -1);
 }
+
 CPVT_WordPlace CPDF_VariableText::GetLineEndPlace(
     const CPVT_WordPlace& place) const {
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     if (CLine* pLine = pSection->m_LineArray.GetAt(place.nLineIndex))
       return pLine->GetEndWordPlace();
   }
   return place;
 }
+
 CPVT_WordPlace CPDF_VariableText::GetSectionBeginPlace(
     const CPVT_WordPlace& place) const {
   return CPVT_WordPlace(place.nSecIndex, 0, -1);
 }
+
 CPVT_WordPlace CPDF_VariableText::GetSectionEndPlace(
     const CPVT_WordPlace& place) const {
-  if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
+  if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex))
     return pSection->GetEndWordPlace();
-  }
   return place;
 }
+
 int32_t CPDF_VariableText::GetTotalWords() const {
   int32_t nTotal = 0;
-  for (int32_t i = 0, sz = m_SectionArray.GetSize(); i < sz; i++)
-    if (CSection* pSection = m_SectionArray.GetAt(i)) {
-      nTotal += (pSection->m_WordArray.GetSize() + PVT_RETURN_LENGTH);
-    }
-  return nTotal - PVT_RETURN_LENGTH;
+  for (int32_t i = 0, sz = m_SectionArray.GetSize(); i < sz; i++) {
+    if (CSection* pSection = m_SectionArray.GetAt(i))
+      nTotal += (pSection->m_WordArray.GetSize() + kReturnLength);
+  }
+
+  return nTotal - kReturnLength;
 }
+
 void CPDF_VariableText::ResetSectionArray() {
-  for (int32_t s = 0, sz = m_SectionArray.GetSize(); s < sz; s++) {
+  for (int32_t s = 0, sz = m_SectionArray.GetSize(); s < sz; s++)
     delete m_SectionArray.GetAt(s);
-  }
+
   m_SectionArray.RemoveAll();
 }
+
 CPVT_WordPlace CPDF_VariableText::AddSection(const CPVT_WordPlace& place,
                                              const CPVT_SectionInfo& secinfo) {
-  if (IsValid() && !m_bMultiLine) {
+  if (IsValid() && !m_bMultiLine)
     return place;
-  }
+
   int32_t nSecIndex =
       std::max(std::min(place.nSecIndex, m_SectionArray.GetSize()), 0);
   CSection* pSection = new CSection(this);
   pSection->m_SecInfo = secinfo;
   pSection->SecPlace.nSecIndex = nSecIndex;
-  if (nSecIndex == m_SectionArray.GetSize()) {
+  if (nSecIndex == m_SectionArray.GetSize())
     m_SectionArray.Add(pSection);
-  } else {
+  else
     m_SectionArray.InsertAt(nSecIndex, pSection);
-  }
+
   return place;
 }
+
 CPVT_WordPlace CPDF_VariableText::AddLine(const CPVT_WordPlace& place,
                                           const CPVT_LineInfo& lineinfo) {
-  if (m_SectionArray.IsEmpty()) {
+  if (m_SectionArray.IsEmpty())
     return place;
-  }
-  if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
+  if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex))
     return pSection->AddLine(lineinfo);
-  }
   return place;
 }
+
 CPVT_WordPlace CPDF_VariableText::AddWord(const CPVT_WordPlace& place,
                                           const CPVT_WordInfo& wordinfo) {
   if (m_SectionArray.GetSize() <= 0) {
     return place;
   }
   CPVT_WordPlace newplace = place;
   newplace.nSecIndex =
       std::max(std::min(newplace.nSecIndex, m_SectionArray.GetSize() - 1), 0);
-  if (CSection* pSection = m_SectionArray.GetAt(newplace.nSecIndex)) {
+  if (CSection* pSection = m_SectionArray.GetAt(newplace.nSecIndex))
     return pSection->AddWord(newplace, wordinfo);
-  }
   return place;
 }
+
 FX_BOOL CPDF_VariableText::GetWordInfo(const CPVT_WordPlace& place,
                                        CPVT_WordInfo& wordinfo) {
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     if (CPVT_WordInfo* pWord = pSection->m_WordArray.GetAt(place.nWordIndex)) {
       wordinfo = *pWord;
       return TRUE;
     }
   }
   return FALSE;
 }
+
 FX_BOOL CPDF_VariableText::SetWordInfo(const CPVT_WordPlace& place,
                                        const CPVT_WordInfo& wordinfo) {
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     if (CPVT_WordInfo* pWord = pSection->m_WordArray.GetAt(place.nWordIndex)) {
       *pWord = wordinfo;
       return TRUE;
     }
   }
   return FALSE;
 }
+
 FX_BOOL CPDF_VariableText::GetLineInfo(const CPVT_WordPlace& place,
                                        CPVT_LineInfo& lineinfo) {
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     if (CLine* pLine = pSection->m_LineArray.GetAt(place.nLineIndex)) {
       lineinfo = pLine->m_LineInfo;
       return TRUE;
     }
   }
   return FALSE;
 }
+
 FX_BOOL CPDF_VariableText::GetSectionInfo(const CPVT_WordPlace& place,
                                           CPVT_SectionInfo& secinfo) {
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     secinfo = pSection->m_SecInfo;
     return TRUE;
   }
   return FALSE;
 }
+
 CFX_FloatRect CPDF_VariableText::GetContentRect() const {
   return InToOut(CPVT_FloatRect(CPDF_EditContainer::GetContentRect()));
 }
+
 FX_FLOAT CPDF_VariableText::GetWordFontSize(const CPVT_WordInfo& WordInfo,
                                             FX_BOOL bFactFontSize) {
   return m_bRichText && WordInfo.pWordProps
-             ? (WordInfo.pWordProps->nScriptType == PVTWORD_SCRIPT_NORMAL ||
+             ? (WordInfo.pWordProps->nScriptType == ScriptType::Normal ||
                         bFactFontSize
                     ? WordInfo.pWordProps->fFontSize
-                    : WordInfo.pWordProps->fFontSize * PVT_HALF)
+                    : WordInfo.pWordProps->fFontSize * VARIABLETEXT_HALF)
              : GetFontSize();
 }
+
 int32_t CPDF_VariableText::GetWordFontIndex(const CPVT_WordInfo& WordInfo) {
   return m_bRichText && WordInfo.pWordProps ? WordInfo.pWordProps->nFontIndex
                                             : WordInfo.nFontIndex;
 }
+
 FX_FLOAT CPDF_VariableText::GetWordWidth(int32_t nFontIndex,
                                          uint16_t Word,
                                          uint16_t SubWord,
                                          FX_FLOAT fCharSpace,
                                          int32_t nHorzScale,
                                          FX_FLOAT fFontSize,
                                          FX_FLOAT fWordTail,
                                          int32_t nWordStyle) {
   return (GetCharWidth(nFontIndex, Word, SubWord, nWordStyle) * fFontSize *
-              PVT_FONTSCALE +
+              kFontScale +
           fCharSpace) *
-             nHorzScale * PVT_PERCENT +
+             nHorzScale * kScalePercent +
          fWordTail;
 }
+
 FX_FLOAT CPDF_VariableText::GetWordWidth(const CPVT_WordInfo& WordInfo) {
   return GetWordWidth(
       GetWordFontIndex(WordInfo), WordInfo.Word, GetSubWord(),
       GetCharSpace(WordInfo), GetHorzScale(WordInfo), GetWordFontSize(WordInfo),
       WordInfo.fWordTail,
       WordInfo.pWordProps ? WordInfo.pWordProps->nWordStyle : 0);
 }
+
 FX_FLOAT CPDF_VariableText::GetLineAscent(const CPVT_SectionInfo& SecInfo) {
   return m_bRichText && SecInfo.pWordProps
              ? GetFontAscent(SecInfo.pWordProps->nFontIndex,
                              SecInfo.pWordProps->fFontSize)
              : GetFontAscent(GetDefaultFontIndex(), GetFontSize());
 }
+
 FX_FLOAT CPDF_VariableText::GetLineDescent(const CPVT_SectionInfo& SecInfo) {
   return m_bRichText && SecInfo.pWordProps
              ? GetFontDescent(SecInfo.pWordProps->nFontIndex,
                               SecInfo.pWordProps->fFontSize)
              : GetFontDescent(GetDefaultFontIndex(), GetFontSize());
 }
+
 FX_FLOAT CPDF_VariableText::GetFontAscent(int32_t nFontIndex,
                                           FX_FLOAT fFontSize) {
-  return (FX_FLOAT)GetTypeAscent(nFontIndex) * fFontSize * PVT_FONTSCALE;
+  return (FX_FLOAT)GetTypeAscent(nFontIndex) * fFontSize * kFontScale;
 }
+
 FX_FLOAT CPDF_VariableText::GetFontDescent(int32_t nFontIndex,
                                            FX_FLOAT fFontSize) {
-  return (FX_FLOAT)GetTypeDescent(nFontIndex) * fFontSize * PVT_FONTSCALE;
+  return (FX_FLOAT)GetTypeDescent(nFontIndex) * fFontSize * kFontScale;
 }
+
 FX_FLOAT CPDF_VariableText::GetWordAscent(const CPVT_WordInfo& WordInfo,
                                           FX_FLOAT fFontSize) {
   return GetFontAscent(GetWordFontIndex(WordInfo), fFontSize);
 }
+
 FX_FLOAT CPDF_VariableText::GetWordDescent(const CPVT_WordInfo& WordInfo,
                                            FX_FLOAT fFontSize) {
   return GetFontDescent(GetWordFontIndex(WordInfo), fFontSize);
 }
+
 FX_FLOAT CPDF_VariableText::GetWordAscent(const CPVT_WordInfo& WordInfo,
                                           FX_BOOL bFactFontSize) {
   return GetFontAscent(GetWordFontIndex(WordInfo),
                        GetWordFontSize(WordInfo, bFactFontSize));
 }
+
 FX_FLOAT CPDF_VariableText::GetWordDescent(const CPVT_WordInfo& WordInfo,
                                            FX_BOOL bFactFontSize) {
   return GetFontDescent(GetWordFontIndex(WordInfo),
                         GetWordFontSize(WordInfo, bFactFontSize));
 }
+
 FX_FLOAT CPDF_VariableText::GetLineLeading(const CPVT_SectionInfo& SecInfo) {
   return m_bRichText && SecInfo.pSecProps ? SecInfo.pSecProps->fLineLeading
                                           : m_fLineLeading;
 }
+
 FX_FLOAT CPDF_VariableText::GetLineIndent(const CPVT_SectionInfo& SecInfo) {
   return m_bRichText && SecInfo.pSecProps ? SecInfo.pSecProps->fLineIndent
                                           : 0.0f;
 }
+
 int32_t CPDF_VariableText::GetAlignment(const CPVT_SectionInfo& SecInfo) {
   return m_bRichText && SecInfo.pSecProps ? SecInfo.pSecProps->nAlignment
                                           : m_nAlignment;
 }
+
 FX_FLOAT CPDF_VariableText::GetCharSpace(const CPVT_WordInfo& WordInfo) {
   return m_bRichText && WordInfo.pWordProps ? WordInfo.pWordProps->fCharSpace
                                             : m_fCharSpace;
 }
+
 int32_t CPDF_VariableText::GetHorzScale(const CPVT_WordInfo& WordInfo) {
   return m_bRichText && WordInfo.pWordProps ? WordInfo.pWordProps->nHorzScale
                                             : m_nHorzScale;
 }
+
 void CPDF_VariableText::ClearSectionRightWords(const CPVT_WordPlace& place) {
   CPVT_WordPlace wordplace = AdjustLineHeader(place, TRUE);
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     for (int32_t w = pSection->m_WordArray.GetSize() - 1;
          w > wordplace.nWordIndex; w--) {
       delete pSection->m_WordArray.GetAt(w);
       pSection->m_WordArray.RemoveAt(w);
     }
   }
 }
+
 CPVT_WordPlace CPDF_VariableText::AdjustLineHeader(const CPVT_WordPlace& place,
                                                    FX_BOOL bPrevOrNext) const {
-  if (place.nWordIndex < 0 && place.nLineIndex > 0) {
+  if (place.nWordIndex < 0 && place.nLineIndex > 0)
     return bPrevOrNext ? GetPrevWordPlace(place) : GetNextWordPlace(place);
-  }
   return place;
 }
+
 FX_BOOL CPDF_VariableText::ClearEmptySection(const CPVT_WordPlace& place) {
-  if (place.nSecIndex == 0 && m_SectionArray.GetSize() == 1) {
+  if (place.nSecIndex == 0 && m_SectionArray.GetSize() == 1)
     return FALSE;
-  }
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     if (pSection->m_WordArray.GetSize() == 0) {
       delete pSection;
       m_SectionArray.RemoveAt(place.nSecIndex);
       return TRUE;
     }
   }
   return FALSE;
 }
+
 void CPDF_VariableText::ClearEmptySections(const CPVT_WordRange& PlaceRange) {
   CPVT_WordPlace wordplace;
   for (int32_t s = PlaceRange.EndPos.nSecIndex;
        s > PlaceRange.BeginPos.nSecIndex; s--) {
     wordplace.nSecIndex = s;
     ClearEmptySection(wordplace);
   }
 }
+
 void CPDF_VariableText::LinkLatterSection(const CPVT_WordPlace& place) {
   CPVT_WordPlace oldplace = AdjustLineHeader(place, TRUE);
   if (CSection* pNextSection = m_SectionArray.GetAt(place.nSecIndex + 1)) {
     if (CSection* pSection = m_SectionArray.GetAt(oldplace.nSecIndex)) {
       for (int32_t w = 0, sz = pNextSection->m_WordArray.GetSize(); w < sz;
            w++) {
         if (CPVT_WordInfo* pWord = pNextSection->m_WordArray.GetAt(w)) {
           oldplace.nWordIndex++;
           pSection->AddWord(oldplace, *pWord);
         }
       }
     }
     delete pNextSection;
     m_SectionArray.RemoveAt(place.nSecIndex + 1);
   }
 }
+
 void CPDF_VariableText::ClearWords(const CPVT_WordRange& PlaceRange) {
   CPVT_WordRange NewRange;
   NewRange.BeginPos = AdjustLineHeader(PlaceRange.BeginPos, TRUE);
   NewRange.EndPos = AdjustLineHeader(PlaceRange.EndPos, TRUE);
   for (int32_t s = NewRange.EndPos.nSecIndex; s >= NewRange.BeginPos.nSecIndex;
        s--) {
-    if (CSection* pSection = m_SectionArray.GetAt(s)) {
+    if (CSection* pSection = m_SectionArray.GetAt(s))
       pSection->ClearWords(NewRange);
-    }
   }
 }
+
 CPVT_WordPlace CPDF_VariableText::ClearLeftWord(const CPVT_WordPlace& place) {
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     CPVT_WordPlace leftplace = GetPrevWordPlace(place);
     if (leftplace != place) {
       if (leftplace.nSecIndex != place.nSecIndex) {
-        if (pSection->m_WordArray.GetSize() == 0) {
+        if (pSection->m_WordArray.GetSize() == 0)
           ClearEmptySection(place);
-        } else {
+        else
           LinkLatterSection(leftplace);
-        }
       } else {
         pSection->ClearWord(place);
       }
     }
     return leftplace;
   }
   return place;
 }
+
 CPVT_WordPlace CPDF_VariableText::ClearRightWord(const CPVT_WordPlace& place) {
   if (CSection* pSection = m_SectionArray.GetAt(place.nSecIndex)) {
     CPVT_WordPlace rightplace =
         AdjustLineHeader(GetNextWordPlace(place), FALSE);
     if (rightplace != place) {
-      if (rightplace.nSecIndex != place.nSecIndex) {
+      if (rightplace.nSecIndex != place.nSecIndex)
         LinkLatterSection(place);
-      } else {
+      else
         pSection->ClearWord(rightplace);
-      }
     }
   }
   return place;
 }
+
 void CPDF_VariableText::RearrangeAll() {
   Rearrange(CPVT_WordRange(GetBeginWordPlace(), GetEndWordPlace()));
 }
+
 void CPDF_VariableText::RearrangePart(const CPVT_WordRange& PlaceRange) {
   Rearrange(PlaceRange);
 }
+
 CPVT_FloatRect CPDF_VariableText::Rearrange(const CPVT_WordRange& PlaceRange) {
   CPVT_FloatRect rcRet;
   if (IsValid()) {
     if (m_bAutoFontSize) {
       SetFontSize(GetAutoFontSize());
       rcRet = RearrangeSections(
           CPVT_WordRange(GetBeginWordPlace(), GetEndWordPlace()));
     } else {
       rcRet = RearrangeSections(PlaceRange);
     }
   }
   SetContentRect(rcRet);
   return rcRet;
 }
+
 FX_FLOAT CPDF_VariableText::GetAutoFontSize() {
   int32_t nTotal = sizeof(gFontSizeSteps) / sizeof(uint8_t);
-  if (IsMultiLine()) {
+  if (IsMultiLine())
     nTotal /= 4;
-  }
-  if (nTotal <= 0) {
+  if (nTotal <= 0)
     return 0;
-  }
-  if (GetPlateWidth() <= 0) {
+  if (GetPlateWidth() <= 0)
     return 0;
-  }
+
   int32_t nLeft = 0;
   int32_t nRight = nTotal - 1;
   int32_t nMid = nTotal / 2;
   while (nLeft <= nRight) {
     if (IsBigger(gFontSizeSteps[nMid])) {
       nRight = nMid - 1;
       nMid = (nLeft + nRight) / 2;
       continue;
     } else {
       nLeft = nMid + 1;
       nMid = (nLeft + nRight) / 2;
       continue;
     }
   }
   return (FX_FLOAT)gFontSizeSteps[nMid];
 }
+
 FX_BOOL CPDF_VariableText::IsBigger(FX_FLOAT fFontSize) {
   FX_BOOL bBigger = FALSE;
   CPVT_Size szTotal;
   for (int32_t s = 0, sz = m_SectionArray.GetSize(); s < sz; s++) {
     if (CSection* pSection = m_SectionArray.GetAt(s)) {
       CPVT_Size size = pSection->GetSectionSize(fFontSize);
       szTotal.x = std::max(size.x, szTotal.x);
       szTotal.y += size.y;
       if (IsFloatBigger(szTotal.x, GetPlateWidth()) ||
           IsFloatBigger(szTotal.y, GetPlateHeight())) {
         bBigger = TRUE;
         break;
       }
     }
   }
   return bBigger;
 }
+
 CPVT_FloatRect CPDF_VariableText::RearrangeSections(
     const CPVT_WordRange& PlaceRange) {
   CPVT_WordPlace place;
   FX_FLOAT fPosY = 0;
   FX_FLOAT fOldHeight;
   int32_t nSSecIndex = PlaceRange.BeginPos.nSecIndex;
   int32_t nESecIndex = PlaceRange.EndPos.nSecIndex;
   CPVT_FloatRect rcRet;
   for (int32_t s = 0, sz = m_SectionArray.GetSize(); s < sz; s++) {
     place.nSecIndex = s;
@@ skipping 20 matching lines @@
         rcRet.left = std::min(rcSec.left, rcRet.left);
         rcRet.top = std::min(rcSec.top, rcRet.top);
         rcRet.right = std::max(rcSec.right, rcRet.right);
         rcRet.bottom = std::max(rcSec.bottom, rcRet.bottom);
       }
       fPosY += rcSec.Height();
     }
   }
   return rcRet;
 }
+
 int32_t CPDF_VariableText::GetCharWidth(int32_t nFontIndex,
                                         uint16_t Word,
                                         uint16_t SubWord,
                                         int32_t nWordStyle) {
-  if (!m_pVTProvider) {
+  if (!m_pVTProvider)
     return 0;
-  }
-  if (SubWord > 0) {
+  if (SubWord > 0)
     return m_pVTProvider->GetCharWidth(nFontIndex, SubWord, nWordStyle);
-  }
   return m_pVTProvider->GetCharWidth(nFontIndex, Word, nWordStyle);
 }
+
 int32_t CPDF_VariableText::GetTypeAscent(int32_t nFontIndex) {
   return m_pVTProvider ? m_pVTProvider->GetTypeAscent(nFontIndex) : 0;
 }
+
 int32_t CPDF_VariableText::GetTypeDescent(int32_t nFontIndex) {
   return m_pVTProvider ? m_pVTProvider->GetTypeDescent(nFontIndex) : 0;
 }
+
 int32_t CPDF_VariableText::GetWordFontIndex(uint16_t word,
                                             int32_t charset,
                                             int32_t nFontIndex) {
   return m_pVTProvider
              ? m_pVTProvider->GetWordFontIndex(word, charset, nFontIndex)
              : -1;
 }
+
 int32_t CPDF_VariableText::GetDefaultFontIndex() {
   return m_pVTProvider ? m_pVTProvider->GetDefaultFontIndex() : -1;
 }
+
 FX_BOOL CPDF_VariableText::IsLatinWord(uint16_t word) {
   return m_pVTProvider ? m_pVTProvider->IsLatinWord(word) : FALSE;
 }
-IPDF_VariableText::Iterator* CPDF_VariableText::GetIterator() {
-  if (!m_pVTIterator) {
-    m_pVTIterator = new CPDF_VariableText_Iterator(this);
-  }
+
+CPDF_VariableText::Iterator* CPDF_VariableText::GetIterator() {
+  if (!m_pVTIterator)
+    m_pVTIterator = new CPDF_VariableText::Iterator(this);
   return m_pVTIterator;
 }
-IPDF_VariableText::Provider* CPDF_VariableText::SetProvider(
-    IPDF_VariableText::Provider* pProvider) {
-  IPDF_VariableText::Provider* pOld = m_pVTProvider;
+
+CPDF_VariableText::Provider* CPDF_VariableText::SetProvider(
+    CPDF_VariableText::Provider* pProvider) {
+  CPDF_VariableText::Provider* pOld = m_pVTProvider;
   m_pVTProvider = pProvider;
   return pOld;
 }
-CPDF_VariableText_Iterator::CPDF_VariableText_Iterator(CPDF_VariableText* pVT)
-    : m_CurPos(-1, -1, -1), m_pVT(pVT) {}
-CPDF_VariableText_Iterator::~CPDF_VariableText_Iterator() {}
-void CPDF_VariableText_Iterator::SetAt(int32_t nWordIndex) {
-  m_CurPos = m_pVT->WordIndexToWordPlace(nWordIndex);
-}
-void CPDF_VariableText_Iterator::SetAt(const CPVT_WordPlace& place) {
-  ASSERT(m_pVT);
-  m_CurPos = place;
-}
-FX_BOOL CPDF_VariableText_Iterator::NextWord() {
-  if (m_CurPos == m_pVT->GetEndWordPlace()) {
-    return FALSE;
-  }
-  m_CurPos = m_pVT->GetNextWordPlace(m_CurPos);
-  return TRUE;
-}
-FX_BOOL CPDF_VariableText_Iterator::PrevWord() {
-  if (m_CurPos == m_pVT->GetBeginWordPlace()) {
-    return FALSE;
-  }
-  m_CurPos = m_pVT->GetPrevWordPlace(m_CurPos);
-  return TRUE;
-}
-FX_BOOL CPDF_VariableText_Iterator::NextLine() {
-  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
-    if (m_CurPos.nLineIndex < pSection->m_LineArray.GetSize() - 1) {
-      m_CurPos =
-          CPVT_WordPlace(m_CurPos.nSecIndex, m_CurPos.nLineIndex + 1, -1);
-      return TRUE;
-    }
-    if (m_CurPos.nSecIndex < m_pVT->m_SectionArray.GetSize() - 1) {
-      m_CurPos = CPVT_WordPlace(m_CurPos.nSecIndex + 1, 0, -1);
-      return TRUE;
-    }
-  }
-  return FALSE;
-}
-FX_BOOL CPDF_VariableText_Iterator::PrevLine() {
-  if (m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
-    if (m_CurPos.nLineIndex > 0) {
-      m_CurPos =
-          CPVT_WordPlace(m_CurPos.nSecIndex, m_CurPos.nLineIndex - 1, -1);
-      return TRUE;
-    }
-    if (m_CurPos.nSecIndex > 0) {
-      if (CSection* pLastSection =
-              m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex - 1)) {
-        m_CurPos = CPVT_WordPlace(m_CurPos.nSecIndex - 1,
-                                  pLastSection->m_LineArray.GetSize() - 1, -1);
-        return TRUE;
-      }
-    }
-  }
-  return FALSE;
-}
-FX_BOOL CPDF_VariableText_Iterator::NextSection() {
-  if (m_CurPos.nSecIndex < m_pVT->m_SectionArray.GetSize() - 1) {
-    m_CurPos = CPVT_WordPlace(m_CurPos.nSecIndex + 1, 0, -1);
-    return TRUE;
-  }
-  return FALSE;
-}
-FX_BOOL CPDF_VariableText_Iterator::PrevSection() {
-  ASSERT(m_pVT);
-  if (m_CurPos.nSecIndex > 0) {
-    m_CurPos = CPVT_WordPlace(m_CurPos.nSecIndex - 1, 0, -1);
-    return TRUE;
-  }
-  return FALSE;
-}
-FX_BOOL CPDF_VariableText_Iterator::GetWord(CPVT_Word& word) const {
-  word.WordPlace = m_CurPos;
-  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
-    if (pSection->m_LineArray.GetAt(m_CurPos.nLineIndex)) {
-      if (CPVT_WordInfo* pWord =
-              pSection->m_WordArray.GetAt(m_CurPos.nWordIndex)) {
-        word.Word = pWord->Word;
-        word.nCharset = pWord->nCharset;
-        word.fWidth = m_pVT->GetWordWidth(*pWord);
-        word.ptWord = m_pVT->InToOut(
-            CFX_FloatPoint(pWord->fWordX + pSection->m_SecInfo.rcSection.left,
-                           pWord->fWordY + pSection->m_SecInfo.rcSection.top));
-        word.fAscent = m_pVT->GetWordAscent(*pWord);
-        word.fDescent = m_pVT->GetWordDescent(*pWord);
-        if (pWord->pWordProps) {
-          word.WordProps = *pWord->pWordProps;
-        }
-        word.nFontIndex = m_pVT->GetWordFontIndex(*pWord);
-        word.fFontSize = m_pVT->GetWordFontSize(*pWord);
-        return TRUE;
-      }
-    }
-  }
-  return FALSE;
-}
-FX_BOOL CPDF_VariableText_Iterator::SetWord(const CPVT_Word& word) {
-  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
-    if (CPVT_WordInfo* pWord =
-            pSection->m_WordArray.GetAt(m_CurPos.nWordIndex)) {
-      if (pWord->pWordProps) {
-        *pWord->pWordProps = word.WordProps;
-      }
-      return TRUE;
-    }
-  }
-  return FALSE;
-}
-FX_BOOL CPDF_VariableText_Iterator::GetLine(CPVT_Line& line) const {
-  ASSERT(m_pVT);
-  line.lineplace = CPVT_WordPlace(m_CurPos.nSecIndex, m_CurPos.nLineIndex, -1);
-  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
-    if (CLine* pLine = pSection->m_LineArray.GetAt(m_CurPos.nLineIndex)) {
-      line.ptLine = m_pVT->InToOut(CFX_FloatPoint(
-          pLine->m_LineInfo.fLineX + pSection->m_SecInfo.rcSection.left,
-          pLine->m_LineInfo.fLineY + pSection->m_SecInfo.rcSection.top));
-      line.fLineWidth = pLine->m_LineInfo.fLineWidth;
-      line.fLineAscent = pLine->m_LineInfo.fLineAscent;
-      line.fLineDescent = pLine->m_LineInfo.fLineDescent;
-      line.lineEnd = pLine->GetEndWordPlace();
-      return TRUE;
-    }
-  }
-  return FALSE;
-}
-FX_BOOL CPDF_VariableText_Iterator::GetSection(CPVT_Section& section) const {
-  section.secplace = CPVT_WordPlace(m_CurPos.nSecIndex, 0, -1);
-  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
-    section.rcSection = m_pVT->InToOut(pSection->m_SecInfo.rcSection);
-    if (pSection->m_SecInfo.pSecProps) {
-      section.SecProps = *pSection->m_SecInfo.pSecProps;
-    }
-    if (pSection->m_SecInfo.pWordProps) {
-      section.WordProps = *pSection->m_SecInfo.pWordProps;
-    }
-    return TRUE;
-  }
-  return FALSE;
-}
-FX_BOOL CPDF_VariableText_Iterator::SetSection(const CPVT_Section& section) {
-  if (CSection* pSection = m_pVT->m_SectionArray.GetAt(m_CurPos.nSecIndex)) {
-    if (pSection->m_SecInfo.pSecProps) {
-      *pSection->m_SecInfo.pSecProps = section.SecProps;
-    }
-    if (pSection->m_SecInfo.pWordProps) {
-      *pSection->m_SecInfo.pWordProps = section.WordProps;
-    }
-    return TRUE;
-  }
-  return FALSE;
-}