Rename Init methods to more accurately describe purpose
[pdfium.git] / fpdfsdk / src / fxedit / fxet_edit.cpp
index efc7acd..218ed16 100644 (file)
 // 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 "../../include/fxedit/fxet_stub.h"
 #include "../../include/fxedit/fxet_edit.h"
 
-#define FX_EDIT_UNDO_MAXITEM                           10000
+#define FX_EDIT_UNDO_MAXITEM 10000
 
-/* ---------------------------- CFX_Edit_Iterator ---------------------------- */
+/* ---------------------------- CFX_Edit_Iterator ----------------------------
+ */
 
-CFX_Edit_Iterator::CFX_Edit_Iterator(CFX_Edit * pEdit,IPDF_VariableText_Iterator * pVTIterator) : 
-       m_pEdit(pEdit),
-       m_pVTIterator(pVTIterator)
-{
-}
+CFX_Edit_Iterator::CFX_Edit_Iterator(CFX_Edit* pEdit,
+                                     IPDF_VariableText_Iterator* pVTIterator)
+    : m_pEdit(pEdit), m_pVTIterator(pVTIterator) {}
 
-CFX_Edit_Iterator::~CFX_Edit_Iterator()
-{
+CFX_Edit_Iterator::~CFX_Edit_Iterator() {}
+
+FX_BOOL CFX_Edit_Iterator::NextWord() {
+  return m_pVTIterator->NextWord();
 }
 
-FX_BOOL        CFX_Edit_Iterator::NextWord()
-{
-       ASSERT(m_pVTIterator != NULL);
-       
-       return m_pVTIterator->NextWord();
+FX_BOOL CFX_Edit_Iterator::NextLine() {
+  return m_pVTIterator->NextLine();
 }
 
-FX_BOOL CFX_Edit_Iterator::NextLine()
-{
-       ASSERT(m_pVTIterator != NULL);
+FX_BOOL CFX_Edit_Iterator::NextSection() {
+  return m_pVTIterator->NextSection();
+}
 
-       return m_pVTIterator->NextLine();
+FX_BOOL CFX_Edit_Iterator::PrevWord() {
+  return m_pVTIterator->PrevWord();
 }
 
-FX_BOOL CFX_Edit_Iterator::NextSection()
-{
-       ASSERT(m_pVTIterator != NULL);
+FX_BOOL CFX_Edit_Iterator::PrevLine() {
+  return m_pVTIterator->PrevLine();
+}
 
-       return m_pVTIterator->NextSection();
+FX_BOOL CFX_Edit_Iterator::PrevSection() {
+  return m_pVTIterator->PrevSection();
 }
 
-FX_BOOL        CFX_Edit_Iterator::PrevWord()
-{
-       ASSERT(m_pVTIterator != NULL);
-       
-       return m_pVTIterator->PrevWord();
+FX_BOOL CFX_Edit_Iterator::GetWord(CPVT_Word& word) const {
+  ASSERT(m_pEdit);
+
+  if (m_pVTIterator->GetWord(word)) {
+    word.ptWord = m_pEdit->VTToEdit(word.ptWord);
+    return TRUE;
+  }
+  return FALSE;
 }
 
-FX_BOOL        CFX_Edit_Iterator::PrevLine()
-{
-       ASSERT(m_pVTIterator != NULL);
+FX_BOOL CFX_Edit_Iterator::GetLine(CPVT_Line& line) const {
+  ASSERT(m_pEdit);
 
-       return m_pVTIterator->PrevLine();
+  if (m_pVTIterator->GetLine(line)) {
+    line.ptLine = m_pEdit->VTToEdit(line.ptLine);
+    return TRUE;
+  }
+  return FALSE;
 }
 
-FX_BOOL        CFX_Edit_Iterator::PrevSection()
-{
-       ASSERT(m_pVTIterator != NULL);
+FX_BOOL CFX_Edit_Iterator::GetSection(CPVT_Section& section) const {
+  ASSERT(m_pEdit);
+
+  if (m_pVTIterator->GetSection(section)) {
+    section.rcSection = m_pEdit->VTToEdit(section.rcSection);
+    return TRUE;
+  }
+  return FALSE;
+}
 
-       return m_pVTIterator->PrevSection();
+void CFX_Edit_Iterator::SetAt(int32_t nWordIndex) {
+  m_pVTIterator->SetAt(nWordIndex);
 }
 
-FX_BOOL CFX_Edit_Iterator::GetWord(CPVT_Word & word) const
-{
-       ASSERT(m_pEdit != NULL);
-       ASSERT(m_pVTIterator != NULL);
+void CFX_Edit_Iterator::SetAt(const CPVT_WordPlace& place) {
+  m_pVTIterator->SetAt(place);
+}
 
-       if (m_pVTIterator->GetWord(word))
-       {
-               word.ptWord = m_pEdit->VTToEdit(word.ptWord);
-               return TRUE;
-       }
+const CPVT_WordPlace& CFX_Edit_Iterator::GetAt() const {
+  return m_pVTIterator->GetAt();
+}
 
-       return FALSE;
+IFX_Edit* CFX_Edit_Iterator::GetEdit() const {
+  return m_pEdit;
 }
 
-FX_BOOL CFX_Edit_Iterator::GetLine(CPVT_Line & line) const
-{
-       ASSERT(m_pEdit != NULL);
-       ASSERT(m_pVTIterator != NULL);
+/* --------------------------- CFX_Edit_Provider -------------------------------
+ */
+
+CFX_Edit_Provider::CFX_Edit_Provider(IFX_Edit_FontMap* pFontMap)
+    : m_pFontMap(pFontMap) {
+  ASSERT(m_pFontMap != NULL);
+}
 
-       if (m_pVTIterator->GetLine(line))
-       {               
-               line.ptLine = m_pEdit->VTToEdit(line.ptLine);
-               return TRUE;
-       }
+CFX_Edit_Provider::~CFX_Edit_Provider() {}
 
-       return FALSE;
+IFX_Edit_FontMap* CFX_Edit_Provider::GetFontMap() {
+  return m_pFontMap;
 }
 
-FX_BOOL CFX_Edit_Iterator::GetSection(CPVT_Section & section) const
-{
-       ASSERT(m_pEdit != NULL);
-       ASSERT(m_pVTIterator != NULL);
+int32_t CFX_Edit_Provider::GetCharWidth(int32_t nFontIndex,
+                                        FX_WORD word,
+                                        int32_t nWordStyle) {
+  if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex)) {
+    FX_DWORD charcode = word;
 
-       if (m_pVTIterator->GetSection(section))
-       {
-               section.rcSection = m_pEdit->VTToEdit(section.rcSection);
-               return TRUE;
-       }
+    if (pPDFFont->IsUnicodeCompatible())
+      charcode = pPDFFont->CharCodeFromUnicode(word);
+    else
+      charcode = m_pFontMap->CharCodeFromUnicode(nFontIndex, word);
 
-       return FALSE;
+    if (charcode != -1)
+      return pPDFFont->GetCharWidthF(charcode);
+  }
+
+  return 0;
 }
 
-void CFX_Edit_Iterator::SetAt(FX_INT32 nWordIndex)
-{
-       ASSERT(m_pVTIterator != NULL);
+int32_t CFX_Edit_Provider::GetTypeAscent(int32_t nFontIndex) {
+  if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex))
+    return pPDFFont->GetTypeAscent();
 
-       m_pVTIterator->SetAt(nWordIndex);
+  return 0;
 }
 
-void CFX_Edit_Iterator::SetAt(const CPVT_WordPlace & place)
-{
-       ASSERT(m_pVTIterator != NULL);
+int32_t CFX_Edit_Provider::GetTypeDescent(int32_t nFontIndex) {
+  if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex))
+    return pPDFFont->GetTypeDescent();
 
-       m_pVTIterator->SetAt(place);
+  return 0;
 }
 
-const CPVT_WordPlace & CFX_Edit_Iterator::GetAt() const
-{
-       ASSERT(m_pVTIterator != NULL);
+int32_t CFX_Edit_Provider::GetWordFontIndex(FX_WORD word,
+                                            int32_t charset,
+                                            int32_t nFontIndex) {
+  return m_pFontMap->GetWordFontIndex(word, charset, nFontIndex);
+}
 
-       return m_pVTIterator->GetAt();
+int32_t CFX_Edit_Provider::GetDefaultFontIndex() {
+  return 0;
 }
 
-IFX_Edit* CFX_Edit_Iterator::GetEdit() const
-{
-       return m_pEdit;
+FX_BOOL CFX_Edit_Provider::IsLatinWord(FX_WORD word) {
+  return FX_EDIT_ISLATINWORD(word);
 }
 
-/* --------------------------- CFX_Edit_Provider ------------------------------- */
+/* --------------------------------- CFX_Edit_Refresh
+ * --------------------------------- */
+
+CFX_Edit_Refresh::CFX_Edit_Refresh() {}
+
+CFX_Edit_Refresh::~CFX_Edit_Refresh() {}
 
-CFX_Edit_Provider::CFX_Edit_Provider(IFX_Edit_FontMap * pFontMap) : m_pFontMap(pFontMap)
-{
-       ASSERT(m_pFontMap != NULL);
+void CFX_Edit_Refresh::BeginRefresh() {
+  m_RefreshRects.Empty();
+  m_OldLineRects = m_NewLineRects;
 }
 
-CFX_Edit_Provider::~CFX_Edit_Provider()
-{
+void CFX_Edit_Refresh::Push(const CPVT_WordRange& linerange,
+                            const CPDF_Rect& rect) {
+  m_NewLineRects.Add(linerange, rect);
 }
 
-IFX_Edit_FontMap* CFX_Edit_Provider::GetFontMap()
-{
-       return m_pFontMap;
+void CFX_Edit_Refresh::NoAnalyse() {
+  {
+    for (int32_t i = 0, sz = m_OldLineRects.GetSize(); i < sz; i++)
+      if (CFX_Edit_LineRect* pOldRect = m_OldLineRects.GetAt(i))
+        m_RefreshRects.Add(pOldRect->m_rcLine);
+  }
+
+  {
+    for (int32_t i = 0, sz = m_NewLineRects.GetSize(); i < sz; i++)
+      if (CFX_Edit_LineRect* pNewRect = m_NewLineRects.GetAt(i))
+        m_RefreshRects.Add(pNewRect->m_rcLine);
+  }
 }
 
-FX_INT32 CFX_Edit_Provider::GetCharWidth(FX_INT32 nFontIndex, FX_WORD word, FX_INT32 nWordStyle)
-{
-       if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex))
-       {
-               FX_DWORD charcode = word;
+void CFX_Edit_Refresh::Analyse(int32_t nAlignment) {
+  FX_BOOL bLineTopChanged = FALSE;
+  CPDF_Rect rcResult;
+  FX_FLOAT fWidthDiff;
+
+  int32_t szMax =
+      FX_EDIT_MAX(m_OldLineRects.GetSize(), m_NewLineRects.GetSize());
+  int32_t i = 0;
 
-               if (pPDFFont->IsUnicodeCompatible())            
-                       charcode = pPDFFont->CharCodeFromUnicode(word); 
-               else
-                       charcode = m_pFontMap->CharCodeFromUnicode(nFontIndex, word);
+  while (i < szMax) {
+    CFX_Edit_LineRect* pOldRect = m_OldLineRects.GetAt(i);
+    CFX_Edit_LineRect* pNewRect = m_NewLineRects.GetAt(i);
 
-               if (charcode != -1)                     
-                       return pPDFFont->GetCharWidthF(charcode);
-       }
+    if (pOldRect) {
+      if (pNewRect) {
+        if (bLineTopChanged) {
+          rcResult = pOldRect->m_rcLine;
+          rcResult.Union(pNewRect->m_rcLine);
+          m_RefreshRects.Add(rcResult);
+        } else {
+          if (*pNewRect != *pOldRect) {
+            if (!pNewRect->IsSameTop(*pOldRect) ||
+                !pNewRect->IsSameHeight(*pOldRect)) {
+              bLineTopChanged = TRUE;
+              continue;
+            }
+
+            if (nAlignment == 0) {
+              if (pNewRect->m_wrLine.BeginPos != pOldRect->m_wrLine.BeginPos) {
+                rcResult = pOldRect->m_rcLine;
+                rcResult.Union(pNewRect->m_rcLine);
+                m_RefreshRects.Add(rcResult);
+              } else {
+                if (!pNewRect->IsSameLeft(*pOldRect)) {
+                  rcResult = pOldRect->m_rcLine;
+                  rcResult.Union(pNewRect->m_rcLine);
+                } else {
+                  fWidthDiff =
+                      pNewRect->m_rcLine.Width() - pOldRect->m_rcLine.Width();
+                  rcResult = pNewRect->m_rcLine;
+                  if (fWidthDiff > 0.0f)
+                    rcResult.left = rcResult.right - fWidthDiff;
+                  else {
+                    rcResult.left = rcResult.right;
+                    rcResult.right += (-fWidthDiff);
+                  }
+                }
+                m_RefreshRects.Add(rcResult);
+              }
+            } else {
+              rcResult = pOldRect->m_rcLine;
+              rcResult.Union(pNewRect->m_rcLine);
+              m_RefreshRects.Add(rcResult);
+            }
+          } else {
+            // don't need to do anything
+          }
+        }
+      } else {
+        m_RefreshRects.Add(pOldRect->m_rcLine);
+      }
+    } else {
+      if (pNewRect) {
+        m_RefreshRects.Add(pNewRect->m_rcLine);
+      } else {
+        // error
+      }
+    }
+    i++;
+  }
+}
 
-       return 0;
+void CFX_Edit_Refresh::AddRefresh(const CPDF_Rect& rect) {
+  m_RefreshRects.Add(rect);
 }
 
-FX_INT32 CFX_Edit_Provider::GetTypeAscent(FX_INT32 nFontIndex)
-{
-       if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex))
-               return pPDFFont->GetTypeAscent();
+const CFX_Edit_RectArray* CFX_Edit_Refresh::GetRefreshRects() const {
+  return &m_RefreshRects;
+}
 
-       return 0;
+void CFX_Edit_Refresh::EndRefresh() {
+  m_RefreshRects.Empty();
 }
 
-FX_INT32 CFX_Edit_Provider::GetTypeDescent(FX_INT32 nFontIndex)
-{
-       if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex))
-               return pPDFFont->GetTypeDescent();
+/* ------------------------------------- CFX_Edit_Undo
+ * ------------------------------------- */
+
+CFX_Edit_Undo::CFX_Edit_Undo(int32_t nBufsize)
+    : m_nCurUndoPos(0),
+      m_nBufSize(nBufsize),
+      m_bModified(FALSE),
+      m_bVirgin(TRUE),
+      m_bWorking(FALSE) {}
 
-       return 0;
+CFX_Edit_Undo::~CFX_Edit_Undo() {
+  Reset();
 }
 
-FX_INT32 CFX_Edit_Provider::GetWordFontIndex(FX_WORD word, FX_INT32 charset, FX_INT32 nFontIndex)
-{
-       return m_pFontMap->GetWordFontIndex(word,charset,nFontIndex);
+FX_BOOL CFX_Edit_Undo::CanUndo() const {
+  return m_nCurUndoPos > 0;
 }
 
-FX_INT32 CFX_Edit_Provider::GetDefaultFontIndex()
-{
-       return 0;
+void CFX_Edit_Undo::Undo() {
+  m_bWorking = TRUE;
+
+  if (m_nCurUndoPos > 0) {
+    IFX_Edit_UndoItem* pItem = m_UndoItemStack.GetAt(m_nCurUndoPos - 1);
+    ASSERT(pItem != NULL);
+
+    pItem->Undo();
+
+    m_nCurUndoPos--;
+    m_bModified = (m_nCurUndoPos != 0);
+  }
+
+  m_bWorking = FALSE;
 }
 
-FX_BOOL        CFX_Edit_Provider::IsLatinWord(FX_WORD word)
-{
-       return FX_EDIT_ISLATINWORD(word);
+FX_BOOL CFX_Edit_Undo::CanRedo() const {
+  return m_nCurUndoPos < m_UndoItemStack.GetSize();
 }
 
-/* --------------------------------- CFX_Edit_Refresh --------------------------------- */
+void CFX_Edit_Undo::Redo() {
+  m_bWorking = TRUE;
+
+  int32_t nStackSize = m_UndoItemStack.GetSize();
+
+  if (m_nCurUndoPos < nStackSize) {
+    IFX_Edit_UndoItem* pItem = m_UndoItemStack.GetAt(m_nCurUndoPos);
+    ASSERT(pItem != NULL);
 
-CFX_Edit_Refresh::CFX_Edit_Refresh()
-{
+    pItem->Redo();
+
+    m_nCurUndoPos++;
+    m_bModified = (m_nCurUndoPos != 0);
+  }
+
+  m_bWorking = FALSE;
 }
 
-CFX_Edit_Refresh::~CFX_Edit_Refresh()
-{
+FX_BOOL CFX_Edit_Undo::IsWorking() const {
+  return m_bWorking;
 }
 
-void CFX_Edit_Refresh::BeginRefresh()
-{
-       m_RefreshRects.Empty();
-       m_OldLineRects = m_NewLineRects;
+void CFX_Edit_Undo::AddItem(IFX_Edit_UndoItem* pItem) {
+  ASSERT(!m_bWorking);
+  ASSERT(pItem != NULL);
+  ASSERT(m_nBufSize > 1);
+
+  if (m_nCurUndoPos < m_UndoItemStack.GetSize())
+    RemoveTails();
+
+  if (m_UndoItemStack.GetSize() >= m_nBufSize) {
+    RemoveHeads();
+    m_bVirgin = FALSE;
+  }
+
+  m_UndoItemStack.Add(pItem);
+  m_nCurUndoPos = m_UndoItemStack.GetSize();
+
+  m_bModified = (m_nCurUndoPos != 0);
 }
-
-void CFX_Edit_Refresh::Push(const CPVT_WordRange & linerange,const CPDF_Rect & rect)
-{
-       m_NewLineRects.Add(linerange,rect);
-}
-
-void CFX_Edit_Refresh::NoAnalyse()
-{
-       {
-               for (FX_INT32 i = 0, sz = m_OldLineRects.GetSize(); i < sz; i++)
-                       if (CFX_Edit_LineRect * pOldRect = m_OldLineRects.GetAt(i))
-                               m_RefreshRects.Add(pOldRect->m_rcLine);
-       }
-
-       {
-               for (FX_INT32 i = 0, sz = m_NewLineRects.GetSize(); i < sz; i++)
-                       if (CFX_Edit_LineRect * pNewRect = m_NewLineRects.GetAt(i))
-                               m_RefreshRects.Add(pNewRect->m_rcLine);
-       }
-}
-
-void CFX_Edit_Refresh::Analyse(FX_INT32 nAlignment)
-{
-       FX_BOOL bLineTopChanged = FALSE;
-       CPDF_Rect rcResult;
-       FX_FLOAT fWidthDiff;
-
-       FX_INT32 szMax = FX_EDIT_MAX(m_OldLineRects.GetSize(),m_NewLineRects.GetSize());
-       FX_INT32 i = 0;
-
-       while (i < szMax)
-       {
-               CFX_Edit_LineRect * pOldRect = m_OldLineRects.GetAt(i);
-               CFX_Edit_LineRect * pNewRect = m_NewLineRects.GetAt(i);
-
-               if (pOldRect)
-               {
-                       if (pNewRect)
-                       {
-                               if (bLineTopChanged)
-                               {
-                                       rcResult = pOldRect->m_rcLine;
-                                       rcResult.Union(pNewRect->m_rcLine);
-                                       m_RefreshRects.Add(rcResult);
-                               }
-                               else
-                               {
-                                       if (*pNewRect != *pOldRect)
-                                       {
-                                               if (!pNewRect->IsSameTop(*pOldRect) || !pNewRect->IsSameHeight(*pOldRect))
-                                               {
-                                                       bLineTopChanged = TRUE;
-                                                       continue;
-                                               }
-
-                                               if (nAlignment == 0)
-                                               {
-                                                       if (pNewRect->m_wrLine.BeginPos != pOldRect->m_wrLine.BeginPos)
-                                                       {
-                                                               rcResult = pOldRect->m_rcLine;
-                                                               rcResult.Union(pNewRect->m_rcLine);
-                                                               m_RefreshRects.Add(rcResult);   
-                                                       }
-                                                       else
-                                                       {
-                                                               if (!pNewRect->IsSameLeft(*pOldRect)) 
-                                                               {
-                                                                       rcResult = pOldRect->m_rcLine;
-                                                                       rcResult.Union(pNewRect->m_rcLine);                                                                             
-                                                               }
-                                                               else
-                                                               {
-                                                                       fWidthDiff = pNewRect->m_rcLine.Width() - pOldRect->m_rcLine.Width();
-                                                                       rcResult = pNewRect->m_rcLine;
-                                                                       if (fWidthDiff > 0.0f)
-                                                                               rcResult.left = rcResult.right - fWidthDiff;
-                                                                       else
-                                                                       {
-                                                                               rcResult.left = rcResult.right;
-                                                                               rcResult.right += (-fWidthDiff);
-                                                                       }
-                                                               }
-                                                               m_RefreshRects.Add(rcResult);
-                                                       }
-                                               }
-                                               else
-                                               {
-                                                       rcResult = pOldRect->m_rcLine;
-                                                       rcResult.Union(pNewRect->m_rcLine);
-                                                       m_RefreshRects.Add(rcResult);
-                                               }
-                                       }
-                                       else
-                                       {
-                                               //don't need to do anything
-                                       }
-                               }
-                       }
-                       else
-                       {
-                               m_RefreshRects.Add(pOldRect->m_rcLine);
-                       }
-               }
-               else
-               {
-                       if (pNewRect)
-                       {
-                               m_RefreshRects.Add(pNewRect->m_rcLine);
-                       }
-                       else
-                       {
-                               //error
-                       }
-               }
-               i++;
-       }
-}
-
-void CFX_Edit_Refresh::AddRefresh(const CPDF_Rect & rect)
-{
-       m_RefreshRects.Add(rect);
-}
-
-const CFX_Edit_RectArray * CFX_Edit_Refresh::GetRefreshRects() const
-{
-       return &m_RefreshRects;
-}
-
-void CFX_Edit_Refresh::EndRefresh()
-{
-       m_RefreshRects.Empty();
-}
-
-/* ------------------------------------- CFX_Edit_Undo ------------------------------------- */
-
-CFX_Edit_Undo::CFX_Edit_Undo(FX_INT32 nBufsize) : m_nCurUndoPos(0),
-       m_nBufSize(nBufsize),
-       m_bModified(FALSE),
-       m_bVirgin(TRUE),
-       m_bWorking(FALSE)
-{
-}
-
-CFX_Edit_Undo::~CFX_Edit_Undo()
-{
-       Reset();
-}
-
-FX_BOOL CFX_Edit_Undo::CanUndo() const
-{
-       return m_nCurUndoPos > 0;
-}
-
-void CFX_Edit_Undo::Undo()
-{
-       m_bWorking = TRUE;
-
-       if (m_nCurUndoPos > 0)
-       {
-               IFX_Edit_UndoItem * pItem = m_UndoItemStack.GetAt(m_nCurUndoPos-1);
-               ASSERT(pItem != NULL);
-
-               pItem->Undo();
-       
-               m_nCurUndoPos--;
-               m_bModified = (m_nCurUndoPos != 0);             
-       }
-
-       m_bWorking = FALSE;
-}
-
-FX_BOOL        CFX_Edit_Undo::CanRedo() const
-{
-       return m_nCurUndoPos < m_UndoItemStack.GetSize();
+
+FX_BOOL CFX_Edit_Undo::IsModified() const {
+  return m_bVirgin ? m_bModified : TRUE;
 }
 
-void CFX_Edit_Undo::Redo()
-{
-       m_bWorking = TRUE;
+IFX_Edit_UndoItem* CFX_Edit_Undo::GetItem(int32_t nIndex) {
+  if (nIndex >= 0 && nIndex < m_UndoItemStack.GetSize())
+    return m_UndoItemStack.GetAt(nIndex);
 
-       FX_INT32 nStackSize = m_UndoItemStack.GetSize();
+  return NULL;
+}
 
-       if (m_nCurUndoPos < nStackSize)
-       {
-               IFX_Edit_UndoItem * pItem = m_UndoItemStack.GetAt(m_nCurUndoPos);
-               ASSERT(pItem != NULL);
+void CFX_Edit_Undo::RemoveHeads() {
+  ASSERT(m_UndoItemStack.GetSize() > 1);
 
-               pItem->Redo();
+  delete m_UndoItemStack.GetAt(0);
+  m_UndoItemStack.RemoveAt(0);
+}
 
-               m_nCurUndoPos++;
-               m_bModified = (m_nCurUndoPos != 0);             
-       }
+void CFX_Edit_Undo::RemoveTails() {
+  for (int32_t i = m_UndoItemStack.GetSize() - 1; i >= m_nCurUndoPos; i--) {
+    delete m_UndoItemStack.GetAt(i);
+    m_UndoItemStack.RemoveAt(i);
+  }
+}
 
-       m_bWorking = FALSE;
+void CFX_Edit_Undo::Reset() {
+  for (int32_t i = 0, sz = m_UndoItemStack.GetSize(); i < sz; i++) {
+    delete m_UndoItemStack.GetAt(i);
+  }
+  m_nCurUndoPos = 0;
+  m_UndoItemStack.RemoveAll();
 }
 
-FX_BOOL        CFX_Edit_Undo::IsWorking() const
-{
-       return m_bWorking;
+/* -------------------------------- CFX_Edit_GroupUndoItem
+ * -------------------------------- */
+
+CFX_Edit_GroupUndoItem::CFX_Edit_GroupUndoItem(const CFX_WideString& sTitle)
+    : m_sTitle(sTitle) {}
+
+CFX_Edit_GroupUndoItem::~CFX_Edit_GroupUndoItem() {
+  for (int i = 0, sz = m_Items.GetSize(); i < sz; i++) {
+    delete m_Items[i];
+  }
+
+  m_Items.RemoveAll();
 }
 
-void CFX_Edit_Undo::AddItem(IFX_Edit_UndoItem* pItem)
-{
-       ASSERT(!m_bWorking);
-       ASSERT(pItem != NULL);
-       ASSERT(m_nBufSize > 1);
-       
-       if (m_nCurUndoPos < m_UndoItemStack.GetSize())
-               RemoveTails();
+void CFX_Edit_GroupUndoItem::AddUndoItem(CFX_Edit_UndoItem* pUndoItem) {
+  ASSERT(pUndoItem != NULL);
 
-       if (m_UndoItemStack.GetSize() >= m_nBufSize)
-       {
-               RemoveHeads();  
-               m_bVirgin = FALSE;
-       }
+  pUndoItem->SetFirst(FALSE);
+  pUndoItem->SetLast(FALSE);
 
-       m_UndoItemStack.Add(pItem);     
-       m_nCurUndoPos = m_UndoItemStack.GetSize();
+  m_Items.Add(pUndoItem);
 
-       m_bModified = (m_nCurUndoPos != 0);
+  if (m_sTitle.IsEmpty())
+    m_sTitle = pUndoItem->GetUndoTitle();
 }
 
-FX_BOOL        CFX_Edit_Undo::IsModified() const
-{
-       if (m_bVirgin)
-               return m_bModified;
-       else
-               return TRUE;
+void CFX_Edit_GroupUndoItem::UpdateItems() {
+  if (m_Items.GetSize() > 0) {
+    CFX_Edit_UndoItem* pFirstItem = m_Items[0];
+    ASSERT(pFirstItem != NULL);
+    pFirstItem->SetFirst(TRUE);
+
+    CFX_Edit_UndoItem* pLastItem = m_Items[m_Items.GetSize() - 1];
+    ASSERT(pLastItem != NULL);
+    pLastItem->SetLast(TRUE);
+  }
 }
 
-IFX_Edit_UndoItem* CFX_Edit_Undo::GetItem(FX_INT32 nIndex)
-{
-       if (nIndex>=0 && nIndex < m_UndoItemStack.GetSize())
-               return m_UndoItemStack.GetAt(nIndex);
+void CFX_Edit_GroupUndoItem::Undo() {
+  for (int i = m_Items.GetSize() - 1; i >= 0; i--) {
+    CFX_Edit_UndoItem* pUndoItem = m_Items[i];
+    ASSERT(pUndoItem != NULL);
 
-       return NULL;
+    pUndoItem->Undo();
+  }
 }
 
-void CFX_Edit_Undo::RemoveHeads()
-{
-       ASSERT(m_UndoItemStack.GetSize() > 1);
+void CFX_Edit_GroupUndoItem::Redo() {
+  for (int i = 0, sz = m_Items.GetSize(); i < sz; i++) {
+    CFX_Edit_UndoItem* pUndoItem = m_Items[i];
+    ASSERT(pUndoItem != NULL);
 
-       IFX_Edit_UndoItem* pItem = m_UndoItemStack.GetAt(0);
-       ASSERT(pItem != NULL);
+    pUndoItem->Redo();
+  }
+}
 
-       pItem->Release();
-       m_UndoItemStack.RemoveAt(0);
+CFX_WideString CFX_Edit_GroupUndoItem::GetUndoTitle() {
+  return m_sTitle;
 }
 
-void CFX_Edit_Undo::RemoveTails()
-{
-       for (FX_INT32 i = m_UndoItemStack.GetSize()-1; i >= m_nCurUndoPos; i--)
-       {
-               IFX_Edit_UndoItem* pItem = m_UndoItemStack.GetAt(i);
-               ASSERT(pItem != NULL);
+/* ------------------------------------- CFX_Edit_UndoItem derived classes
+ * ------------------------------------- */
 
-               pItem->Release();
-               m_UndoItemStack.RemoveAt(i);
-       }
+CFXEU_InsertWord::CFXEU_InsertWord(CFX_Edit* pEdit,
+                                   const CPVT_WordPlace& wpOldPlace,
+                                   const CPVT_WordPlace& wpNewPlace,
+                                   FX_WORD word,
+                                   int32_t charset,
+                                   const CPVT_WordProps* pWordProps)
+    : m_pEdit(pEdit),
+      m_wpOld(wpOldPlace),
+      m_wpNew(wpNewPlace),
+      m_Word(word),
+      m_nCharset(charset),
+      m_WordProps() {
+  if (pWordProps)
+    m_WordProps = *pWordProps;
 }
 
-void CFX_Edit_Undo::Reset()
-{
-       for (FX_INT32 i=0, sz=m_UndoItemStack.GetSize(); i < sz; i++)
-       {
-               IFX_Edit_UndoItem * pItem = m_UndoItemStack.GetAt(i);
-               ASSERT(pItem != NULL);
+CFXEU_InsertWord::~CFXEU_InsertWord() {}
 
-               pItem->Release();
-       }
-       m_nCurUndoPos = 0;
-       m_UndoItemStack.RemoveAll();
+void CFXEU_InsertWord::Redo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetCaret(m_wpOld);
+    m_pEdit->InsertWord(m_Word, m_nCharset, &m_WordProps, FALSE, TRUE);
+  }
 }
 
-/* -------------------------------- CFX_Edit_GroupUndoItem -------------------------------- */
+void CFXEU_InsertWord::Undo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetCaret(m_wpNew);
+    m_pEdit->Backspace(FALSE, TRUE);
+  }
+}
+
+/* -------------------------------------------------------------------------- */
 
-CFX_Edit_GroupUndoItem::CFX_Edit_GroupUndoItem(const CFX_WideString& sTitle) : m_sTitle(sTitle)
-{
+CFXEU_InsertReturn::CFXEU_InsertReturn(CFX_Edit* pEdit,
+                                       const CPVT_WordPlace& wpOldPlace,
+                                       const CPVT_WordPlace& wpNewPlace,
+                                       const CPVT_SecProps* pSecProps,
+                                       const CPVT_WordProps* pWordProps)
+    : m_pEdit(pEdit),
+      m_wpOld(wpOldPlace),
+      m_wpNew(wpNewPlace),
+      m_SecProps(),
+      m_WordProps() {
+  if (pSecProps)
+    m_SecProps = *pSecProps;
+  if (pWordProps)
+    m_WordProps = *pWordProps;
 }
 
-CFX_Edit_GroupUndoItem::~CFX_Edit_GroupUndoItem()
-{
-       for (int i=0,sz=m_Items.GetSize(); i<sz; i++)
-       {
-               CFX_Edit_UndoItem* pUndoItem = m_Items[i];
-               ASSERT(pUndoItem != NULL);
+CFXEU_InsertReturn::~CFXEU_InsertReturn() {}
 
-               pUndoItem->Release();
-       }
+void CFXEU_InsertReturn::Redo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetCaret(m_wpOld);
+    m_pEdit->InsertReturn(&m_SecProps, &m_WordProps, FALSE, TRUE);
+  }
+}
 
-       m_Items.RemoveAll();
+void CFXEU_InsertReturn::Undo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetCaret(m_wpNew);
+    m_pEdit->Backspace(FALSE, TRUE);
+  }
 }
 
-void CFX_Edit_GroupUndoItem::AddUndoItem(CFX_Edit_UndoItem* pUndoItem)
-{
-       ASSERT(pUndoItem != NULL);
+/* -------------------------------------------------------------------------- */
+// CFXEU_Backspace
+
+CFXEU_Backspace::CFXEU_Backspace(CFX_Edit* pEdit,
+                                 const CPVT_WordPlace& wpOldPlace,
+                                 const CPVT_WordPlace& wpNewPlace,
+                                 FX_WORD word,
+                                 int32_t charset,
+                                 const CPVT_SecProps& SecProps,
+                                 const CPVT_WordProps& WordProps)
+    : m_pEdit(pEdit),
+      m_wpOld(wpOldPlace),
+      m_wpNew(wpNewPlace),
+      m_Word(word),
+      m_nCharset(charset),
+      m_SecProps(SecProps),
+      m_WordProps(WordProps) {}
+
+CFXEU_Backspace::~CFXEU_Backspace() {}
+
+void CFXEU_Backspace::Redo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetCaret(m_wpOld);
+    m_pEdit->Backspace(FALSE, TRUE);
+  }
+}
+
+void CFXEU_Backspace::Undo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetCaret(m_wpNew);
+    if (m_wpNew.SecCmp(m_wpOld) != 0) {
+      m_pEdit->InsertReturn(&m_SecProps, &m_WordProps, FALSE, TRUE);
+    } else {
+      m_pEdit->InsertWord(m_Word, m_nCharset, &m_WordProps, FALSE, TRUE);
+    }
+  }
+}
+
+/* -------------------------------------------------------------------------- */
+// CFXEU_Delete
+
+CFXEU_Delete::CFXEU_Delete(CFX_Edit* pEdit,
+                           const CPVT_WordPlace& wpOldPlace,
+                           const CPVT_WordPlace& wpNewPlace,
+                           FX_WORD word,
+                           int32_t charset,
+                           const CPVT_SecProps& SecProps,
+                           const CPVT_WordProps& WordProps,
+                           FX_BOOL bSecEnd)
+    : m_pEdit(pEdit),
+      m_wpOld(wpOldPlace),
+      m_wpNew(wpNewPlace),
+      m_Word(word),
+      m_nCharset(charset),
+      m_SecProps(SecProps),
+      m_WordProps(WordProps),
+      m_bSecEnd(bSecEnd) {}
+
+CFXEU_Delete::~CFXEU_Delete() {}
+
+void CFXEU_Delete::Redo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetCaret(m_wpOld);
+    m_pEdit->Delete(FALSE, TRUE);
+  }
+}
+
+void CFXEU_Delete::Undo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetCaret(m_wpNew);
+    if (m_bSecEnd) {
+      m_pEdit->InsertReturn(&m_SecProps, &m_WordProps, FALSE, TRUE);
+    } else {
+      m_pEdit->InsertWord(m_Word, m_nCharset, &m_WordProps, FALSE, TRUE);
+    }
+  }
+}
+
+/* -------------------------------------------------------------------------- */
+// CFXEU_Clear
 
-       pUndoItem->SetFirst(FALSE);
-       pUndoItem->SetLast(FALSE);
+CFXEU_Clear::CFXEU_Clear(CFX_Edit* pEdit,
+                         const CPVT_WordRange& wrSel,
+                         const CFX_WideString& swText)
+    : m_pEdit(pEdit), m_wrSel(wrSel), m_swText(swText) {}
 
-       m_Items.Add(pUndoItem);
+CFXEU_Clear::~CFXEU_Clear() {}
 
-       if (m_sTitle.IsEmpty())
-               m_sTitle = pUndoItem->GetUndoTitle();
+void CFXEU_Clear::Redo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetSel(m_wrSel.BeginPos, m_wrSel.EndPos);
+    m_pEdit->Clear(FALSE, TRUE);
+  }
 }
 
-void CFX_Edit_GroupUndoItem::UpdateItems()
-{
-       if (m_Items.GetSize() > 0)
-       {
-               CFX_Edit_UndoItem* pFirstItem = m_Items[0];
-               ASSERT(pFirstItem != NULL);
-               pFirstItem->SetFirst(TRUE);
+void CFXEU_Clear::Undo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetCaret(m_wrSel.BeginPos);
+    m_pEdit->InsertText(m_swText.c_str(), DEFAULT_CHARSET, NULL, NULL, FALSE,
+                        TRUE);
+    m_pEdit->SetSel(m_wrSel.BeginPos, m_wrSel.EndPos);
+  }
+}
 
-               CFX_Edit_UndoItem* pLastItem = m_Items[m_Items.GetSize() - 1];
-               ASSERT(pLastItem != NULL);
-               pLastItem->SetLast(TRUE);
-       }
+/* -------------------------------------------------------------------------- */
+// CFXEU_ClearRich
+
+CFXEU_ClearRich::CFXEU_ClearRich(CFX_Edit* pEdit,
+                                 const CPVT_WordPlace& wpOldPlace,
+                                 const CPVT_WordPlace& wpNewPlace,
+                                 const CPVT_WordRange& wrSel,
+                                 FX_WORD word,
+                                 int32_t charset,
+                                 const CPVT_SecProps& SecProps,
+                                 const CPVT_WordProps& WordProps)
+    : m_pEdit(pEdit),
+      m_wpOld(wpOldPlace),
+      m_wpNew(wpNewPlace),
+      m_wrSel(wrSel),
+      m_Word(word),
+      m_nCharset(charset),
+      m_SecProps(SecProps),
+      m_WordProps(WordProps) {}
+
+CFXEU_ClearRich::~CFXEU_ClearRich() {}
+
+void CFXEU_ClearRich::Redo() {
+  if (m_pEdit && IsLast()) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetSel(m_wrSel.BeginPos, m_wrSel.EndPos);
+    m_pEdit->Clear(FALSE, TRUE);
+  }
+}
+
+void CFXEU_ClearRich::Undo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetCaret(m_wpOld);
+    if (m_wpNew.SecCmp(m_wpOld) != 0) {
+      m_pEdit->InsertReturn(&m_SecProps, &m_WordProps, FALSE, FALSE);
+    } else {
+      m_pEdit->InsertWord(m_Word, m_nCharset, &m_WordProps, FALSE, FALSE);
+    }
+
+    if (IsFirst()) {
+      m_pEdit->PaintInsertText(m_wrSel.BeginPos, m_wrSel.EndPos);
+      m_pEdit->SetSel(m_wrSel.BeginPos, m_wrSel.EndPos);
+    }
+  }
+}
+/* -------------------------------------------------------------------------- */
+// CFXEU_InsertText
+
+CFXEU_InsertText::CFXEU_InsertText(CFX_Edit* pEdit,
+                                   const CPVT_WordPlace& wpOldPlace,
+                                   const CPVT_WordPlace& wpNewPlace,
+                                   const CFX_WideString& swText,
+                                   int32_t charset,
+                                   const CPVT_SecProps* pSecProps,
+                                   const CPVT_WordProps* pWordProps)
+    : m_pEdit(pEdit),
+      m_wpOld(wpOldPlace),
+      m_wpNew(wpNewPlace),
+      m_swText(swText),
+      m_nCharset(charset),
+      m_SecProps(),
+      m_WordProps() {
+  if (pSecProps)
+    m_SecProps = *pSecProps;
+  if (pWordProps)
+    m_WordProps = *pWordProps;
+}
+
+CFXEU_InsertText::~CFXEU_InsertText() {}
+
+void CFXEU_InsertText::Redo() {
+  if (m_pEdit && IsLast()) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetCaret(m_wpOld);
+    m_pEdit->InsertText(m_swText.c_str(), m_nCharset, &m_SecProps, &m_WordProps,
+                        FALSE, TRUE);
+  }
+}
+
+void CFXEU_InsertText::Undo() {
+  if (m_pEdit) {
+    m_pEdit->SelectNone();
+    m_pEdit->SetSel(m_wpOld, m_wpNew);
+    m_pEdit->Clear(FALSE, TRUE);
+  }
 }
 
-void CFX_Edit_GroupUndoItem::Undo()
-{
-       for (int i=m_Items.GetSize()-1; i>=0; i--)
-       {
-               CFX_Edit_UndoItem* pUndoItem = m_Items[i];
-               ASSERT(pUndoItem != NULL);
+/* -------------------------------------------------------------------------- */
 
-               pUndoItem->Undo();
-       }
+CFXEU_SetSecProps::CFXEU_SetSecProps(CFX_Edit* pEdit,
+                                     const CPVT_WordPlace& place,
+                                     EDIT_PROPS_E ep,
+                                     const CPVT_SecProps& oldsecprops,
+                                     const CPVT_WordProps& oldwordprops,
+                                     const CPVT_SecProps& newsecprops,
+                                     const CPVT_WordProps& newwordprops,
+                                     const CPVT_WordRange& range)
+    : m_pEdit(pEdit),
+      m_wpPlace(place),
+      m_wrPlace(range),
+      m_eProps(ep),
+      m_OldSecProps(oldsecprops),
+      m_NewSecProps(newsecprops),
+      m_OldWordProps(oldwordprops),
+      m_NewWordProps(newwordprops) {}
+
+CFXEU_SetSecProps::~CFXEU_SetSecProps() {}
+
+void CFXEU_SetSecProps::Redo() {
+  if (m_pEdit) {
+    m_pEdit->SetSecProps(m_eProps, m_wpPlace, &m_NewSecProps, &m_NewWordProps,
+                         m_wrPlace, FALSE);
+    if (IsLast()) {
+      m_pEdit->SelectNone();
+      m_pEdit->PaintSetProps(m_eProps, m_wrPlace);
+      m_pEdit->SetSel(m_wrPlace.BeginPos, m_wrPlace.EndPos);
+    }
+  }
+}
+
+void CFXEU_SetSecProps::Undo() {
+  if (m_pEdit) {
+    m_pEdit->SetSecProps(m_eProps, m_wpPlace, &m_OldSecProps, &m_OldWordProps,
+                         m_wrPlace, FALSE);
+    if (IsFirst()) {
+      m_pEdit->SelectNone();
+      m_pEdit->PaintSetProps(m_eProps, m_wrPlace);
+      m_pEdit->SetSel(m_wrPlace.BeginPos, m_wrPlace.EndPos);
+    }
+  }
 }
 
-void CFX_Edit_GroupUndoItem::Redo()
-{
-       for (int i=0,sz=m_Items.GetSize(); i<sz; i++)
-       {
-               CFX_Edit_UndoItem* pUndoItem = m_Items[i];
-               ASSERT(pUndoItem != NULL);
+/* -------------------------------------------------------------------------- */
 
-               pUndoItem->Redo();
-       }
+CFXEU_SetWordProps::CFXEU_SetWordProps(CFX_Edit* pEdit,
+                                       const CPVT_WordPlace& place,
+                                       EDIT_PROPS_E ep,
+                                       const CPVT_WordProps& oldprops,
+                                       const CPVT_WordProps& newprops,
+                                       const CPVT_WordRange& range)
+    : m_pEdit(pEdit),
+      m_wpPlace(place),
+      m_wrPlace(range),
+      m_eProps(ep),
+      m_OldWordProps(oldprops),
+      m_NewWordProps(newprops) {}
+
+CFXEU_SetWordProps::~CFXEU_SetWordProps() {}
+
+void CFXEU_SetWordProps::Redo() {
+  if (m_pEdit) {
+    m_pEdit->SetWordProps(m_eProps, m_wpPlace, &m_NewWordProps, m_wrPlace,
+                          FALSE);
+    if (IsLast()) {
+      m_pEdit->SelectNone();
+      m_pEdit->PaintSetProps(m_eProps, m_wrPlace);
+      m_pEdit->SetSel(m_wrPlace.BeginPos, m_wrPlace.EndPos);
+    }
+  }
+}
+
+void CFXEU_SetWordProps::Undo() {
+  if (m_pEdit) {
+    m_pEdit->SetWordProps(m_eProps, m_wpPlace, &m_OldWordProps, m_wrPlace,
+                          FALSE);
+    if (IsFirst()) {
+      m_pEdit->SelectNone();
+      m_pEdit->PaintSetProps(m_eProps, m_wrPlace);
+      m_pEdit->SetSel(m_wrPlace.BeginPos, m_wrPlace.EndPos);
+    }
+  }
+}
+
+/* ------------------------------------- CFX_Edit
+ * ------------------------------------- */
+
+CFX_Edit::CFX_Edit(IPDF_VariableText* pVT)
+    : m_pVT(pVT),
+      m_pNotify(NULL),
+      m_pOprNotify(NULL),
+      m_pVTProvide(NULL),
+      m_wpCaret(-1, -1, -1),
+      m_wpOldCaret(-1, -1, -1),
+      m_SelState(),
+      m_ptScrollPos(0, 0),
+      m_ptRefreshScrollPos(0, 0),
+      m_bEnableScroll(FALSE),
+      m_pIterator(NULL),
+      m_ptCaret(0.0f, 0.0f),
+      m_Undo(FX_EDIT_UNDO_MAXITEM),
+      m_nAlignment(0),
+      m_bNotifyFlag(FALSE),
+      m_bEnableOverflow(FALSE),
+      m_bEnableRefresh(TRUE),
+      m_rcOldContent(0.0f, 0.0f, 0.0f, 0.0f),
+      m_bEnableUndo(TRUE),
+      m_bNotify(TRUE),
+      m_bOprNotify(FALSE),
+      m_pGroupUndoItem(NULL) {
+  ASSERT(pVT != NULL);
+}
+
+CFX_Edit::~CFX_Edit() {
+  delete m_pVTProvide;
+  m_pVTProvide = NULL;
+  delete m_pIterator;
+  m_pIterator = NULL;
+  ASSERT(m_pGroupUndoItem == NULL);
 }
 
-CFX_WideString CFX_Edit_GroupUndoItem::GetUndoTitle()
-{
-       return m_sTitle;
+// public methods
+
+void CFX_Edit::Initialize() {
+  m_pVT->Initialize();
+  SetCaret(m_pVT->GetBeginWordPlace());
+  SetCaretOrigin();
 }
 
-void CFX_Edit_GroupUndoItem::Release()
-{
-       delete this;
+void CFX_Edit::SetFontMap(IFX_Edit_FontMap* pFontMap) {
+  delete m_pVTProvide;
+  m_pVT->SetProvider(m_pVTProvide = new CFX_Edit_Provider(pFontMap));
 }
 
-/* ------------------------------------- CFX_Edit_UndoItem derived classes ------------------------------------- */
+void CFX_Edit::SetVTProvider(IPDF_VariableText_Provider* pProvider) {
+  m_pVT->SetProvider(pProvider);
+}
 
-CFXEU_InsertWord::CFXEU_InsertWord(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
-                                                                FX_WORD word, FX_INT32 charset, const CPVT_WordProps * pWordProps) 
-       : m_pEdit(pEdit), m_wpOld(wpOldPlace), m_wpNew(wpNewPlace), m_Word(word), m_nCharset(charset), m_WordProps()
-{
-       if (pWordProps)
-               m_WordProps = *pWordProps;
+void CFX_Edit::SetNotify(IFX_Edit_Notify* pNotify) {
+  m_pNotify = pNotify;
 }
 
-CFXEU_InsertWord::~CFXEU_InsertWord()
-{
+void CFX_Edit::SetOprNotify(IFX_Edit_OprNotify* pOprNotify) {
+  m_pOprNotify = pOprNotify;
 }
 
-void CFXEU_InsertWord::Redo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetCaret(m_wpOld);             
-               m_pEdit->InsertWord(m_Word,m_nCharset,&m_WordProps,FALSE,TRUE);
-       }
+IFX_Edit_Iterator* CFX_Edit::GetIterator() {
+  if (!m_pIterator)
+    m_pIterator = new CFX_Edit_Iterator(this, m_pVT->GetIterator());
+
+  return m_pIterator;
 }
 
-void CFXEU_InsertWord::Undo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetCaret(m_wpNew);
-               m_pEdit->Backspace(FALSE,TRUE);
-       }
+IPDF_VariableText* CFX_Edit::GetVariableText() {
+  return m_pVT;
 }
 
-/* -------------------------------------------------------------------------- */
+IFX_Edit_FontMap* CFX_Edit::GetFontMap() {
+  if (m_pVTProvide)
+    return m_pVTProvide->GetFontMap();
 
-CFXEU_InsertReturn::CFXEU_InsertReturn(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
-                        const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps) :
-                       m_pEdit(pEdit),
-                       m_wpOld(wpOldPlace),
-                       m_wpNew(wpNewPlace),
-                       m_SecProps(),
-                       m_WordProps()                                                                    
-{
-       if (pSecProps)
-               m_SecProps = *pSecProps;
-       if (pWordProps)
-               m_WordProps = *pWordProps;
+  return NULL;
 }
 
-CFXEU_InsertReturn::~CFXEU_InsertReturn()
-{
+void CFX_Edit::SetPlateRect(const CPDF_Rect& rect, FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetPlateRect(rect);
+  m_ptScrollPos = CPDF_Point(rect.left, rect.top);
+  if (bPaint)
+    Paint();
 }
 
-void CFXEU_InsertReturn::Redo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetCaret(m_wpOld);
-               m_pEdit->InsertReturn(&m_SecProps,&m_WordProps,FALSE,TRUE);
-       }
+void CFX_Edit::SetAlignmentH(int32_t nFormat /* =0 */,
+                             FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetAlignment(nFormat);
+  if (bPaint)
+    Paint();
 }
 
-void CFXEU_InsertReturn::Undo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetCaret(m_wpNew);
-               m_pEdit->Backspace(FALSE,TRUE);
-       }
+void CFX_Edit::SetAlignmentV(int32_t nFormat /* =0 */,
+                             FX_BOOL bPaint /* = TRUE*/) {
+  m_nAlignment = nFormat;
+  if (bPaint)
+    Paint();
 }
 
-/* -------------------------------------------------------------------------- */
-//CFXEU_Backspace
-
-CFXEU_Backspace::CFXEU_Backspace(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
-                                                          FX_WORD word, FX_INT32 charset,
-                                                          const CPVT_SecProps & SecProps, const CPVT_WordProps & WordProps) :
-                       m_pEdit(pEdit),
-                       m_wpOld(wpOldPlace),
-                       m_wpNew(wpNewPlace),
-                       m_Word(word),
-                       m_nCharset(charset),
-                       m_SecProps(SecProps),
-                       m_WordProps(WordProps)                                                                   
-{
-}
-
-CFXEU_Backspace::~CFXEU_Backspace()
-{
-}
-
-void CFXEU_Backspace::Redo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetCaret(m_wpOld);
-               m_pEdit->Backspace(FALSE,TRUE);
-       }
-}
-
-void CFXEU_Backspace::Undo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetCaret(m_wpNew);
-               if (m_wpNew.SecCmp(m_wpOld) != 0)
-               {
-                       m_pEdit->InsertReturn(&m_SecProps,&m_WordProps,FALSE,TRUE);
-               }
-               else
-               {
-                       m_pEdit->InsertWord(m_Word,m_nCharset,&m_WordProps,FALSE,TRUE);
-               }
-       }
+void CFX_Edit::SetPasswordChar(FX_WORD wSubWord /* ='*' */,
+                               FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetPasswordChar(wSubWord);
+  if (bPaint)
+    Paint();
 }
 
-/* -------------------------------------------------------------------------- */
-//CFXEU_Delete
-
-CFXEU_Delete::CFXEU_Delete(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
-                                                          FX_WORD word, FX_INT32 charset,
-                                                          const CPVT_SecProps & SecProps, const CPVT_WordProps & WordProps, FX_BOOL bSecEnd) :
-                       m_pEdit(pEdit),
-                       m_wpOld(wpOldPlace),
-                       m_wpNew(wpNewPlace),
-                       m_Word(word),
-                       m_nCharset(charset),
-                       m_SecProps(SecProps),
-                       m_WordProps(WordProps),
-                       m_bSecEnd(bSecEnd)
-{
-}
-
-CFXEU_Delete::~CFXEU_Delete()
-{
-}
-
-void CFXEU_Delete::Redo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetCaret(m_wpOld);
-               m_pEdit->Delete(FALSE,TRUE);
-       }
-}
-
-void CFXEU_Delete::Undo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetCaret(m_wpNew);
-               if (m_bSecEnd)
-               {
-                       m_pEdit->InsertReturn(&m_SecProps,&m_WordProps,FALSE,TRUE);
-               }
-               else
-               {
-                       m_pEdit->InsertWord(m_Word,m_nCharset,&m_WordProps,FALSE,TRUE);
-               }
-       }
+void CFX_Edit::SetLimitChar(int32_t nLimitChar /* =0 */,
+                            FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetLimitChar(nLimitChar);
+  if (bPaint)
+    Paint();
 }
 
-/* -------------------------------------------------------------------------- */
-//CFXEU_Clear
+void CFX_Edit::SetCharArray(int32_t nCharArray /* =0 */,
+                            FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetCharArray(nCharArray);
+  if (bPaint)
+    Paint();
+}
 
-CFXEU_Clear::CFXEU_Clear(CFX_Edit * pEdit,  const CPVT_WordRange & wrSel, const CFX_WideString & swText) :
-                       m_pEdit(pEdit),
-                       m_wrSel(wrSel),
-                       m_swText(swText)
-{
+void CFX_Edit::SetCharSpace(FX_FLOAT fCharSpace /* =0.0f */,
+                            FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetCharSpace(fCharSpace);
+  if (bPaint)
+    Paint();
 }
 
-CFXEU_Clear::~CFXEU_Clear()
-{
+void CFX_Edit::SetHorzScale(int32_t nHorzScale /* =100 */,
+                            FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetHorzScale(nHorzScale);
+  if (bPaint)
+    Paint();
 }
 
-void CFXEU_Clear::Redo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetSel(m_wrSel.BeginPos,m_wrSel.EndPos);
-               m_pEdit->Clear(FALSE,TRUE);
-       }
+void CFX_Edit::SetMultiLine(FX_BOOL bMultiLine /* =TRUE */,
+                            FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetMultiLine(bMultiLine);
+  if (bPaint)
+    Paint();
 }
 
-void CFXEU_Clear::Undo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetCaret(m_wrSel.BeginPos);
-               m_pEdit->InsertText(m_swText, DEFAULT_CHARSET, NULL,NULL,FALSE,TRUE);
-               m_pEdit->SetSel(m_wrSel.BeginPos,m_wrSel.EndPos);
-       }
+void CFX_Edit::SetAutoReturn(FX_BOOL bAuto /* =TRUE */,
+                             FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetAutoReturn(bAuto);
+  if (bPaint)
+    Paint();
 }
 
-/* -------------------------------------------------------------------------- */
-//CFXEU_ClearRich
-
-CFXEU_ClearRich::CFXEU_ClearRich(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
-                                                          const CPVT_WordRange & wrSel, FX_WORD word, FX_INT32 charset,
-                                                          const CPVT_SecProps & SecProps, const CPVT_WordProps & WordProps) :
-                       m_pEdit(pEdit),
-                       m_wpOld(wpOldPlace),
-                       m_wpNew(wpNewPlace),
-                       m_wrSel(wrSel),
-                       m_Word(word),
-                       m_nCharset(charset),
-                       m_SecProps(SecProps),
-                       m_WordProps(WordProps)                                                                   
-{
-}
-
-CFXEU_ClearRich::~CFXEU_ClearRich()
-{
-}
-
-void CFXEU_ClearRich::Redo()
-{
-       if (m_pEdit && IsLast())
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetSel(m_wrSel.BeginPos,m_wrSel.EndPos);
-               m_pEdit->Clear(FALSE,TRUE);
-       }
-}
-
-void CFXEU_ClearRich::Undo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetCaret(m_wpOld);
-               if (m_wpNew.SecCmp(m_wpOld) != 0)
-               {
-                       m_pEdit->InsertReturn(&m_SecProps,&m_WordProps,FALSE,FALSE);
-               }
-               else
-               {
-                       m_pEdit->InsertWord(m_Word,m_nCharset,&m_WordProps,FALSE,FALSE);
-               }
-
-               if (IsFirst())
-               {
-                       m_pEdit->PaintInsertText(m_wrSel.BeginPos,m_wrSel.EndPos);
-                       m_pEdit->SetSel(m_wrSel.BeginPos,m_wrSel.EndPos);
-               }
-       }
+void CFX_Edit::SetLineLeading(FX_FLOAT fLineLeading /* =TRUE */,
+                              FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetLineLeading(fLineLeading);
+  if (bPaint)
+    Paint();
 }
-/* -------------------------------------------------------------------------- */
-//CFXEU_InsertText
-
-CFXEU_InsertText::CFXEU_InsertText(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
-                                                          const CFX_WideString & swText, FX_INT32 charset,
-                                                          const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps) :
-                       m_pEdit(pEdit),
-                       m_wpOld(wpOldPlace),
-                       m_wpNew(wpNewPlace),
-                       m_swText(swText),
-                       m_nCharset(charset),
-                       m_SecProps(),
-                       m_WordProps()                                                                    
-{
-       if (pSecProps)
-               m_SecProps = *pSecProps;
-       if (pWordProps)
-               m_WordProps = *pWordProps;
-}
-
-CFXEU_InsertText::~CFXEU_InsertText()
-{
-}
-
-void CFXEU_InsertText::Redo()
-{
-       if (m_pEdit && IsLast())
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetCaret(m_wpOld);
-               m_pEdit->InsertText(m_swText, m_nCharset,&m_SecProps, &m_WordProps,FALSE,TRUE);
-       }
-}
-
-void CFXEU_InsertText::Undo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SelectNone();
-               m_pEdit->SetSel(m_wpOld,m_wpNew);
-               m_pEdit->Clear(FALSE,TRUE);
-       }
+
+void CFX_Edit::SetAutoFontSize(FX_BOOL bAuto /* =TRUE */,
+                               FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetAutoFontSize(bAuto);
+  if (bPaint)
+    Paint();
 }
 
-/* -------------------------------------------------------------------------- */
+void CFX_Edit::SetFontSize(FX_FLOAT fFontSize, FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetFontSize(fFontSize);
+  if (bPaint)
+    Paint();
+}
 
-CFXEU_SetSecProps::CFXEU_SetSecProps(CFX_Edit * pEdit, const CPVT_WordPlace & place, EDIT_PROPS_E ep, 
-               const CPVT_SecProps & oldsecprops, const CPVT_WordProps & oldwordprops, 
-               const CPVT_SecProps & newsecprops, const CPVT_WordProps & newwordprops, const CPVT_WordRange & range)
-               : m_pEdit(pEdit),
-               m_wpPlace(place),
-               m_eProps(ep),
-               m_OldSecProps(oldsecprops),
-               m_NewSecProps(newsecprops),
-               m_OldWordProps(oldwordprops),
-               m_NewWordProps(newwordprops),
-               m_wrPlace(range)
-{
-}
-
-CFXEU_SetSecProps::~CFXEU_SetSecProps()
-{
-}
-
-void CFXEU_SetSecProps::Redo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SetSecProps(m_eProps,m_wpPlace,&m_NewSecProps,&m_NewWordProps,m_wrPlace,FALSE);
-               if (IsLast())
-               {
-                       m_pEdit->SelectNone();
-                       m_pEdit->PaintSetProps(m_eProps,m_wrPlace);
-                       m_pEdit->SetSel(m_wrPlace.BeginPos,m_wrPlace.EndPos);
-               }
-       }
-}
-
-void CFXEU_SetSecProps::Undo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SetSecProps(m_eProps,m_wpPlace,&m_OldSecProps,&m_OldWordProps,m_wrPlace,FALSE);
-               if (IsFirst())
-               {
-                       m_pEdit->SelectNone();
-                       m_pEdit->PaintSetProps(m_eProps,m_wrPlace);
-                       m_pEdit->SetSel(m_wrPlace.BeginPos,m_wrPlace.EndPos);
-               }
-       }
+void CFX_Edit::SetAutoScroll(FX_BOOL bAuto /* =TRUE */,
+                             FX_BOOL bPaint /* = TRUE*/) {
+  m_bEnableScroll = bAuto;
+  if (bPaint)
+    Paint();
 }
 
-/* -------------------------------------------------------------------------- */
+void CFX_Edit::SetTextOverflow(FX_BOOL bAllowed /*= FALSE*/,
+                               FX_BOOL bPaint /* = TRUE*/) {
+  m_bEnableOverflow = bAllowed;
+  if (bPaint)
+    Paint();
+}
 
-CFXEU_SetWordProps::CFXEU_SetWordProps(CFX_Edit * pEdit, const CPVT_WordPlace & place, EDIT_PROPS_E ep, 
-               const CPVT_WordProps & oldprops, const CPVT_WordProps & newprops, const CPVT_WordRange & range)
-               : m_pEdit(pEdit),
-               m_wpPlace(place),
-               m_eProps(ep),
-               m_OldWordProps(oldprops),
-               m_NewWordProps(newprops),
-               m_wrPlace(range)
-{
-}
-
-CFXEU_SetWordProps::~CFXEU_SetWordProps()
-{
-}
-
-void CFXEU_SetWordProps::Redo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SetWordProps(m_eProps,m_wpPlace,&m_NewWordProps,m_wrPlace,FALSE);
-               if (IsLast())
-               {
-                       m_pEdit->SelectNone();
-                       m_pEdit->PaintSetProps(m_eProps,m_wrPlace);
-                       m_pEdit->SetSel(m_wrPlace.BeginPos,m_wrPlace.EndPos);
-               }
-       }
-}
-
-void CFXEU_SetWordProps::Undo()
-{
-       if (m_pEdit)
-       {
-               m_pEdit->SetWordProps(m_eProps,m_wpPlace,&m_OldWordProps,m_wrPlace,FALSE);
-               if (IsFirst())
-               {
-                       m_pEdit->SelectNone();
-                       m_pEdit->PaintSetProps(m_eProps,m_wrPlace);
-                       m_pEdit->SetSel(m_wrPlace.BeginPos,m_wrPlace.EndPos);
-               }
-       }
-}
-
-/* ------------------------------------- CFX_Edit ------------------------------------- */
-
-CFX_Edit::CFX_Edit(IPDF_VariableText * pVT) :
-       m_pVT(pVT),
-       m_pNotify(NULL),
-       m_pOprNotify(NULL),
-       m_wpCaret(-1,-1,-1),
-       m_wpOldCaret(-1,-1,-1),
-       m_ptScrollPos(0,0),
-       m_ptRefreshScrollPos(0,0),
-       m_bEnableScroll(FALSE),
-       m_bEnableOverflow(FALSE),
-       m_pVTProvide(NULL),
-       m_pIterator(NULL),
-       m_SelState(),
-       m_ptCaret(0.0f,0.0f),
-       m_Undo(FX_EDIT_UNDO_MAXITEM),
-       m_nAlignment(0),
-       m_bNotifyFlag(FALSE),
-       m_bEnableRefresh(TRUE),
-       m_rcOldContent(0.0f,0.0f,0.0f,0.0f),
-       m_bEnableUndo(TRUE),
-       m_bNotify(TRUE),
-       m_bOprNotify(FALSE),
-       m_pGroupUndoItem(NULL)
-{      
-       ASSERT(pVT != NULL);
-}
-
-CFX_Edit::~CFX_Edit()
-{
-       if (m_pVTProvide)
-       {
-               delete m_pVTProvide;
-               m_pVTProvide = NULL;
-       }
-
-       if (m_pIterator)
-       {
-               delete m_pIterator;
-               m_pIterator = NULL;
-       }
-
-       ASSERT(m_pGroupUndoItem == NULL);
+void CFX_Edit::SetSel(int32_t nStartChar, int32_t nEndChar) {
+  if (m_pVT->IsValid()) {
+    if (nStartChar == 0 && nEndChar < 0) {
+      SelectAll();
+    } else if (nStartChar < 0) {
+      SelectNone();
+    } else {
+      if (nStartChar < nEndChar) {
+        SetSel(m_pVT->WordIndexToWordPlace(nStartChar),
+               m_pVT->WordIndexToWordPlace(nEndChar));
+      } else {
+        SetSel(m_pVT->WordIndexToWordPlace(nEndChar),
+               m_pVT->WordIndexToWordPlace(nStartChar));
+      }
+    }
+  }
 }
 
-// public methods
+void CFX_Edit::SetSel(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
+  if (m_pVT->IsValid()) {
+    SelectNone();
+
+    m_SelState.Set(begin, end);
 
-void CFX_Edit::Initialize()
-{
-       m_pVT->Initialize();
-       SetCaret(m_pVT->GetBeginWordPlace());
-       SetCaretOrigin();
+    SetCaret(m_SelState.EndPos);
+
+    if (m_SelState.IsExist()) {
+      ScrollToCaret();
+      CPVT_WordRange wr(m_SelState.BeginPos, m_SelState.EndPos);
+      Refresh(RP_OPTIONAL, &wr);
+      SetCaretInfo();
+    } else {
+      ScrollToCaret();
+      SetCaretInfo();
+    }
+  }
+}
+
+void CFX_Edit::GetSel(int32_t& nStartChar, int32_t& nEndChar) const {
+  nStartChar = -1;
+  nEndChar = -1;
+
+  if (m_pVT->IsValid()) {
+    if (m_SelState.IsExist()) {
+      if (m_SelState.BeginPos.WordCmp(m_SelState.EndPos) < 0) {
+        nStartChar = m_pVT->WordPlaceToWordIndex(m_SelState.BeginPos);
+        nEndChar = m_pVT->WordPlaceToWordIndex(m_SelState.EndPos);
+      } else {
+        nStartChar = m_pVT->WordPlaceToWordIndex(m_SelState.EndPos);
+        nEndChar = m_pVT->WordPlaceToWordIndex(m_SelState.BeginPos);
+      }
+    } else {
+      nStartChar = m_pVT->WordPlaceToWordIndex(m_wpCaret);
+      nEndChar = m_pVT->WordPlaceToWordIndex(m_wpCaret);
+    }
+  }
 }
 
-void CFX_Edit::SetFontMap(IFX_Edit_FontMap * pFontMap)
-{
-       if (m_pVTProvide) 
-               delete m_pVTProvide;
+int32_t CFX_Edit::GetCaret() const {
+  if (m_pVT->IsValid())
+    return m_pVT->WordPlaceToWordIndex(m_wpCaret);
 
-       m_pVT->SetProvider(m_pVTProvide = new CFX_Edit_Provider(pFontMap));
+  return -1;
 }
 
-void CFX_Edit::SetVTProvider(IPDF_VariableText_Provider* pProvider)
-{
-       m_pVT->SetProvider(pProvider);
+CPVT_WordPlace CFX_Edit::GetCaretWordPlace() const {
+  return m_wpCaret;
 }
 
-void CFX_Edit::SetNotify(IFX_Edit_Notify* pNotify)
-{
-       m_pNotify = pNotify;
+CFX_WideString CFX_Edit::GetText() const {
+  CFX_WideString swRet;
+
+  if (m_pVT->IsValid()) {
+    if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+      FX_BOOL bRich = m_pVT->IsRichText();
+
+      pIterator->SetAt(0);
+
+      CPVT_Word wordinfo;
+      CPVT_WordPlace oldplace = pIterator->GetAt();
+      while (pIterator->NextWord()) {
+        CPVT_WordPlace place = pIterator->GetAt();
+
+        if (pIterator->GetWord(wordinfo)) {
+          if (bRich) {
+            swRet += wordinfo.Word;
+          } else {
+            swRet += wordinfo.Word;
+          }
+        }
+
+        if (oldplace.SecCmp(place) != 0) {
+          swRet += 0x0D;
+          swRet += 0x0A;
+        }
+
+        oldplace = place;
+      }
+    }
+  }
+
+  return swRet;
 }
 
-void CFX_Edit::SetOprNotify(IFX_Edit_OprNotify* pOprNotify)
-{
-       m_pOprNotify = pOprNotify;
+CFX_WideString CFX_Edit::GetRangeText(const CPVT_WordRange& range) const {
+  CFX_WideString swRet;
+
+  if (m_pVT->IsValid()) {
+    FX_BOOL bRich = m_pVT->IsRichText();
+
+    if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+      CPVT_WordRange wrTemp = range;
+      m_pVT->UpdateWordPlace(wrTemp.BeginPos);
+      m_pVT->UpdateWordPlace(wrTemp.EndPos);
+      pIterator->SetAt(wrTemp.BeginPos);
+
+      CPVT_Word wordinfo;
+      CPVT_WordPlace oldplace = wrTemp.BeginPos;
+      while (pIterator->NextWord()) {
+        CPVT_WordPlace place = pIterator->GetAt();
+        if (place.WordCmp(wrTemp.EndPos) > 0)
+          break;
+
+        if (pIterator->GetWord(wordinfo)) {
+          if (bRich) {
+            swRet += wordinfo.Word;
+          } else {
+            swRet += wordinfo.Word;
+          }
+        }
+
+        if (oldplace.SecCmp(place) != 0) {
+          swRet += 0x0D;
+          swRet += 0x0A;
+        }
+
+        oldplace = place;
+      }
+    }
+  }
+
+  return swRet;
+}
+
+CFX_WideString CFX_Edit::GetSelText() const {
+  return GetRangeText(m_SelState.ConvertToWordRange());
+}
+
+int32_t CFX_Edit::GetTotalWords() const {
+  return m_pVT->GetTotalWords();
 }
 
-IFX_Edit_Iterator * CFX_Edit::GetIterator()
-{
-       if (!m_pIterator)
-               m_pIterator = new CFX_Edit_Iterator(this,m_pVT->GetIterator());
+int32_t CFX_Edit::GetTotalLines() const {
+  int32_t nLines = 0;
+
+  if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+    pIterator->SetAt(0);
+    while (pIterator->NextLine())
+      nLines++;
+  }
 
-       return m_pIterator;
+  return nLines + 1;
 }
 
-IPDF_VariableText *    CFX_Edit::GetVariableText()
-{
-       return m_pVT;
+CPVT_WordRange CFX_Edit::GetSelectWordRange() const {
+  return m_SelState.ConvertToWordRange();
 }
 
-IFX_Edit_FontMap* CFX_Edit::GetFontMap()
-{
-       if (m_pVTProvide)
-               return m_pVTProvide->GetFontMap();
+CPVT_WordRange CFX_Edit::CombineWordRange(const CPVT_WordRange& wr1,
+                                          const CPVT_WordRange& wr2) {
+  CPVT_WordRange wrRet;
+
+  if (wr1.BeginPos.WordCmp(wr2.BeginPos) < 0) {
+    wrRet.BeginPos = wr1.BeginPos;
+  } else {
+    wrRet.BeginPos = wr2.BeginPos;
+  }
+
+  if (wr1.EndPos.WordCmp(wr2.EndPos) < 0) {
+    wrRet.EndPos = wr2.EndPos;
+  } else {
+    wrRet.EndPos = wr1.EndPos;
+  }
 
-       return NULL;
+  return wrRet;
 }
 
-void CFX_Edit::SetPlateRect(const CPDF_Rect & rect, FX_BOOL bPaint/* = TRUE*/)
-{      
-       m_pVT->SetPlateRect(rect);
-       m_ptScrollPos = CPDF_Point(rect.left,rect.top);                 
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::IsRichText() const {
+  return m_pVT->IsRichText();
 }
 
-void CFX_Edit::SetAlignmentH(FX_INT32 nFormat/* =0 */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetAlignment(nFormat);
-       if (bPaint) Paint();
+void CFX_Edit::SetRichText(FX_BOOL bRichText /* =TRUE */,
+                           FX_BOOL bPaint /* = TRUE*/) {
+  m_pVT->SetRichText(bRichText);
+  if (bPaint)
+    Paint();
 }
 
-void CFX_Edit::SetAlignmentV(FX_INT32 nFormat/* =0 */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_nAlignment = nFormat;
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichFontIndex(int32_t nFontIndex) {
+  CPVT_WordProps WordProps;
+  WordProps.nFontIndex = nFontIndex;
+  return SetRichTextProps(EP_FONTINDEX, NULL, &WordProps);
 }
 
-void CFX_Edit::SetPasswordChar(FX_WORD wSubWord/* ='*' */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetPasswordChar(wSubWord);
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichFontSize(FX_FLOAT fFontSize) {
+  CPVT_WordProps WordProps;
+  WordProps.fFontSize = fFontSize;
+  return SetRichTextProps(EP_FONTSIZE, NULL, &WordProps);
 }
 
-void CFX_Edit::SetLimitChar(FX_INT32 nLimitChar/* =0 */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetLimitChar(nLimitChar);
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichTextColor(FX_COLORREF dwColor) {
+  CPVT_WordProps WordProps;
+  WordProps.dwWordColor = dwColor;
+  return SetRichTextProps(EP_WORDCOLOR, NULL, &WordProps);
 }
 
-void CFX_Edit::SetCharArray(FX_INT32 nCharArray/* =0 */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetCharArray(nCharArray);
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichTextScript(int32_t nScriptType) {
+  CPVT_WordProps WordProps;
+  WordProps.nScriptType = nScriptType;
+  return SetRichTextProps(EP_SCRIPTTYPE, NULL, &WordProps);
 }
 
-void CFX_Edit::SetCharSpace(FX_FLOAT fCharSpace/* =0.0f */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetCharSpace(fCharSpace);
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichTextBold(FX_BOOL bBold) {
+  CPVT_WordProps WordProps;
+  if (bBold)
+    WordProps.nWordStyle |= PVTWORD_STYLE_BOLD;
+  return SetRichTextProps(EP_BOLD, NULL, &WordProps);
 }
 
-void CFX_Edit::SetHorzScale(FX_INT32 nHorzScale/* =100 */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetHorzScale(nHorzScale);
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichTextItalic(FX_BOOL bItalic) {
+  CPVT_WordProps WordProps;
+  if (bItalic)
+    WordProps.nWordStyle |= PVTWORD_STYLE_ITALIC;
+  return SetRichTextProps(EP_ITALIC, NULL, &WordProps);
 }
 
-void CFX_Edit::SetMultiLine(FX_BOOL bMultiLine/* =TRUE */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetMultiLine(bMultiLine);
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichTextUnderline(FX_BOOL bUnderline) {
+  CPVT_WordProps WordProps;
+  if (bUnderline)
+    WordProps.nWordStyle |= PVTWORD_STYLE_UNDERLINE;
+  return SetRichTextProps(EP_UNDERLINE, NULL, &WordProps);
 }
 
-void CFX_Edit::SetAutoReturn(FX_BOOL bAuto/* =TRUE */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetAutoReturn(bAuto);
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichTextCrossout(FX_BOOL bCrossout) {
+  CPVT_WordProps WordProps;
+  if (bCrossout)
+    WordProps.nWordStyle |= PVTWORD_STYLE_CROSSOUT;
+  return SetRichTextProps(EP_CROSSOUT, NULL, &WordProps);
 }
 
-void CFX_Edit::SetLineLeading(FX_FLOAT fLineLeading/* =TRUE */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetLineLeading(fLineLeading);
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichTextCharSpace(FX_FLOAT fCharSpace) {
+  CPVT_WordProps WordProps;
+  WordProps.fCharSpace = fCharSpace;
+  return SetRichTextProps(EP_CHARSPACE, NULL, &WordProps);
 }
 
-void CFX_Edit::SetAutoFontSize(FX_BOOL bAuto/* =TRUE */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetAutoFontSize(bAuto);
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichTextHorzScale(int32_t nHorzScale /*= 100*/) {
+  CPVT_WordProps WordProps;
+  WordProps.nHorzScale = nHorzScale;
+  return SetRichTextProps(EP_HORZSCALE, NULL, &WordProps);
 }
 
-void CFX_Edit::SetFontSize(FX_FLOAT fFontSize, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetFontSize(fFontSize);
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichTextLineLeading(FX_FLOAT fLineLeading) {
+  CPVT_SecProps SecProps;
+  SecProps.fLineLeading = fLineLeading;
+  return SetRichTextProps(EP_LINELEADING, &SecProps, NULL);
 }
 
-void CFX_Edit::SetAutoScroll(FX_BOOL bAuto/* =TRUE */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_bEnableScroll = bAuto;
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichTextLineIndent(FX_FLOAT fLineIndent) {
+  CPVT_SecProps SecProps;
+  SecProps.fLineIndent = fLineIndent;
+  return SetRichTextProps(EP_LINEINDENT, &SecProps, NULL);
 }
 
-void CFX_Edit::SetTextOverflow(FX_BOOL bAllowed /*= FALSE*/, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_bEnableOverflow = bAllowed;
-       if (bPaint) Paint();
+FX_BOOL CFX_Edit::SetRichTextAlignment(int32_t nAlignment) {
+  CPVT_SecProps SecProps;
+  SecProps.nAlignment = nAlignment;
+  return SetRichTextProps(EP_ALIGNMENT, &SecProps, NULL);
 }
 
-void CFX_Edit::SetSel(FX_INT32 nStartChar,FX_INT32 nEndChar)
-{
-       if (m_pVT->IsValid())
-       {
-               if (nStartChar == 0 && nEndChar < 0)
-               {
-                       SelectAll();
-               }
-               else if (nStartChar < 0)
-               {       
-                       this->SelectNone();
-               }
-               else
-               {               
-                       if (nStartChar < nEndChar)
-                       {
-                               SetSel(m_pVT->WordIndexToWordPlace(nStartChar),m_pVT->WordIndexToWordPlace(nEndChar));
-                       }
-                       else
-                       {
-                               SetSel(m_pVT->WordIndexToWordPlace(nEndChar),m_pVT->WordIndexToWordPlace(nStartChar));
-                       }
-               }       
-       }
-}
-
-void CFX_Edit::SetSel(const CPVT_WordPlace & begin,const CPVT_WordPlace & end)
-{
-       if (m_pVT->IsValid())
-       {
-               SelectNone();
-
-               m_SelState.Set(begin,end);
-
-               SetCaret(m_SelState.EndPos);
-
-               if (m_SelState.IsExist())
-               {
-                       ScrollToCaret();
-                       CPVT_WordRange wr(m_SelState.BeginPos,m_SelState.EndPos);
-                       Refresh(RP_OPTIONAL,&wr);
-                       SetCaretInfo();
-               }
-               else
-               {               
-                       ScrollToCaret();
-                       SetCaretInfo();
-               }
-       }
-}
-
-void CFX_Edit::GetSel(FX_INT32 & nStartChar, FX_INT32 & nEndChar) const
-{
-       nStartChar = -1;
-       nEndChar = -1;
-
-       if (m_pVT->IsValid())
-       {
-               if (m_SelState.IsExist())
-               {
-                       if (m_SelState.BeginPos.WordCmp(m_SelState.EndPos)<0)
-                       {
-                               nStartChar = m_pVT->WordPlaceToWordIndex(m_SelState.BeginPos);
-                               nEndChar = m_pVT->WordPlaceToWordIndex(m_SelState.EndPos);
-                       }
-                       else
-                       {
-                               nStartChar = m_pVT->WordPlaceToWordIndex(m_SelState.EndPos);
-                               nEndChar = m_pVT->WordPlaceToWordIndex(m_SelState.BeginPos);
-                       }
-               }
-               else
-               {
-                       nStartChar = m_pVT->WordPlaceToWordIndex(m_wpCaret);
-                       nEndChar = m_pVT->WordPlaceToWordIndex(m_wpCaret);
-               }
-       }
-}
-
-FX_INT32 CFX_Edit::GetCaret() const
-{
-       if (m_pVT->IsValid())
-               return m_pVT->WordPlaceToWordIndex(m_wpCaret);
-
-       return -1;
-}
-
-CPVT_WordPlace CFX_Edit::GetCaretWordPlace() const
-{
-       return m_wpCaret;
-}
-
-CFX_WideString CFX_Edit::GetText() const
-{
-       CFX_WideString swRet;
-
-       if (m_pVT->IsValid())
-       {
-               if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-               {
-                       FX_BOOL bRich = m_pVT->IsRichText();
-
-                       pIterator->SetAt(0);
-
-                       CPVT_Word wordinfo;     
-                       CPVT_WordPlace oldplace = pIterator->GetAt();
-                       while (pIterator->NextWord())
-                       {
-                               CPVT_WordPlace place = pIterator->GetAt();
-
-                               if (pIterator->GetWord(wordinfo))
-                               {
-                                       if (bRich)
-                                       {
-                                               swRet += wordinfo.Word;
-                                       }
-                                       else
-                                       {
-                                               swRet += wordinfo.Word;
-                                       }                                       
-                               }
-
-                               if (oldplace.SecCmp(place) != 0)
-                               {
-                                       swRet += 0x0D;
-                                       swRet += 0x0A;
-                               }
-                               
-                               oldplace = place;
-                       }
-               }
-       }
-
-       return swRet;
-}
-
-CFX_WideString CFX_Edit::GetRangeText(const CPVT_WordRange & range) const
-{
-       CFX_WideString swRet;
-
-       if (m_pVT->IsValid())
-       {
-               FX_BOOL bRich = m_pVT->IsRichText();
-
-               if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-               {                       
-                       CPVT_WordRange wrTemp = range;
-                       m_pVT->UpdateWordPlace(wrTemp.BeginPos);
-                       m_pVT->UpdateWordPlace(wrTemp.EndPos);
-                       pIterator->SetAt(wrTemp.BeginPos);
-
-                       CPVT_Word wordinfo;     
-                       CPVT_WordPlace oldplace = wrTemp.BeginPos;
-                       while (pIterator->NextWord())
-                       {
-                               CPVT_WordPlace place = pIterator->GetAt();
-                               if (place.WordCmp(wrTemp.EndPos) > 0)break;
-
-                               if (pIterator->GetWord(wordinfo))
-                               {
-                                       if (bRich)
-                                       {
-                                               swRet += wordinfo.Word;
-                                       }
-                                       else
-                                       {
-                                               swRet += wordinfo.Word;
-                                       }                                       
-                               }
-
-                               if (oldplace.SecCmp(place) != 0)
-                               {
-                                       swRet += 0x0D;
-                                       swRet += 0x0A;
-                               }
-                               
-                               oldplace = place;
-                       }
-               }
-       }
-
-       return swRet;
-}
-
-CFX_WideString CFX_Edit::GetSelText() const
-{
-       return GetRangeText(m_SelState.ConvertToWordRange());
-}
-
-FX_INT32 CFX_Edit::GetTotalWords() const
-{
-       return m_pVT->GetTotalWords();
-}
-
-FX_INT32 CFX_Edit::GetTotalLines() const
-{
-       FX_INT32 nLines = 0;
-
-       if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-       {
-               pIterator->SetAt(0);
-               while (pIterator->NextLine())
-                       nLines++;
-       }
-
-       return nLines+1;
-}
-
-CPVT_WordRange CFX_Edit::GetSelectWordRange() const
-{
-       return m_SelState.ConvertToWordRange();
-}
-
-CPVT_WordRange CFX_Edit::CombineWordRange(const CPVT_WordRange & wr1, const CPVT_WordRange & wr2)
-{
-       CPVT_WordRange wrRet;
-
-       if (wr1.BeginPos.WordCmp(wr2.BeginPos) < 0)
-       {
-               wrRet.BeginPos = wr1.BeginPos;
-       }
-       else
-       {
-               wrRet.BeginPos = wr2.BeginPos;
-       }
+FX_BOOL CFX_Edit::SetRichTextProps(EDIT_PROPS_E eProps,
+                                   const CPVT_SecProps* pSecProps,
+                                   const CPVT_WordProps* pWordProps) {
+  FX_BOOL bSet = FALSE;
+  FX_BOOL bSet1, bSet2;
+  if (m_pVT->IsValid() && m_pVT->IsRichText()) {
+    if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+      CPVT_WordRange wrTemp = m_SelState.ConvertToWordRange();
+
+      m_pVT->UpdateWordPlace(wrTemp.BeginPos);
+      m_pVT->UpdateWordPlace(wrTemp.EndPos);
+      pIterator->SetAt(wrTemp.BeginPos);
+
+      BeginGroupUndo(L"");
+      ;
+
+      bSet = SetSecProps(eProps, wrTemp.BeginPos, pSecProps, pWordProps, wrTemp,
+                         TRUE);
+
+      while (pIterator->NextWord()) {
+        CPVT_WordPlace place = pIterator->GetAt();
+        if (place.WordCmp(wrTemp.EndPos) > 0)
+          break;
+        bSet1 = SetSecProps(eProps, place, pSecProps, pWordProps, wrTemp, TRUE);
+        bSet2 = SetWordProps(eProps, place, pWordProps, wrTemp, TRUE);
+
+        if (!bSet)
+          bSet = (bSet1 || bSet2);
+      }
+
+      EndGroupUndo();
+
+      if (bSet) {
+        PaintSetProps(eProps, wrTemp);
+      }
+    }
+  }
+
+  return bSet;
+}
+
+void CFX_Edit::PaintSetProps(EDIT_PROPS_E eProps, const CPVT_WordRange& wr) {
+  switch (eProps) {
+    case EP_LINELEADING:
+    case EP_LINEINDENT:
+    case EP_ALIGNMENT:
+      RearrangePart(wr);
+      ScrollToCaret();
+      Refresh(RP_ANALYSE);
+      SetCaretOrigin();
+      SetCaretInfo();
+      break;
+    case EP_WORDCOLOR:
+    case EP_UNDERLINE:
+    case EP_CROSSOUT:
+      Refresh(RP_OPTIONAL, &wr);
+      break;
+    case EP_FONTINDEX:
+    case EP_FONTSIZE:
+    case EP_SCRIPTTYPE:
+    case EP_CHARSPACE:
+    case EP_HORZSCALE:
+    case EP_BOLD:
+    case EP_ITALIC:
+      RearrangePart(wr);
+      ScrollToCaret();
+
+      CPVT_WordRange wrRefresh(m_pVT->GetSectionBeginPlace(wr.BeginPos),
+                               m_pVT->GetSectionEndPlace(wr.EndPos));
+      Refresh(RP_ANALYSE, &wrRefresh);
+
+      SetCaretOrigin();
+      SetCaretInfo();
+      break;
+  }
+}
+
+FX_BOOL CFX_Edit::SetSecProps(EDIT_PROPS_E eProps,
+                              const CPVT_WordPlace& place,
+                              const CPVT_SecProps* pSecProps,
+                              const CPVT_WordProps* pWordProps,
+                              const CPVT_WordRange& wr,
+                              FX_BOOL bAddUndo) {
+  if (m_pVT->IsValid() && m_pVT->IsRichText()) {
+    if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+      FX_BOOL bSet = FALSE;
+      CPVT_Section secinfo;
+      CPVT_Section OldSecinfo;
+
+      CPVT_WordPlace oldplace = pIterator->GetAt();
+
+      if (eProps == EP_LINELEADING || eProps == EP_LINEINDENT ||
+          eProps == EP_ALIGNMENT) {
+        if (pSecProps) {
+          pIterator->SetAt(place);
+          if (pIterator->GetSection(secinfo)) {
+            if (bAddUndo)
+              OldSecinfo = secinfo;
+
+            switch (eProps) {
+              case EP_LINELEADING:
+                if (!FX_EDIT_IsFloatEqual(secinfo.SecProps.fLineLeading,
+                                          pSecProps->fLineLeading)) {
+                  secinfo.SecProps.fLineLeading = pSecProps->fLineLeading;
+                  bSet = TRUE;
+                }
+                break;
+              case EP_LINEINDENT:
+                if (!FX_EDIT_IsFloatEqual(secinfo.SecProps.fLineIndent,
+                                          pSecProps->fLineIndent)) {
+                  secinfo.SecProps.fLineIndent = pSecProps->fLineIndent;
+                  bSet = TRUE;
+                }
+                break;
+              case EP_ALIGNMENT:
+                if (secinfo.SecProps.nAlignment != pSecProps->nAlignment) {
+                  secinfo.SecProps.nAlignment = pSecProps->nAlignment;
+                  bSet = TRUE;
+                }
+                break;
+              default:
+                break;
+            }
+          }
+        }
+      } else {
+        if (pWordProps && place == m_pVT->GetSectionBeginPlace(place)) {
+          pIterator->SetAt(place);
+          if (pIterator->GetSection(secinfo)) {
+            if (bAddUndo)
+              OldSecinfo = secinfo;
+
+            switch (eProps) {
+              case EP_FONTINDEX:
+                if (secinfo.WordProps.nFontIndex != pWordProps->nFontIndex) {
+                  secinfo.WordProps.nFontIndex = pWordProps->nFontIndex;
+                  bSet = TRUE;
+                }
+                break;
+              case EP_FONTSIZE:
+                if (!FX_EDIT_IsFloatEqual(secinfo.WordProps.fFontSize,
+                                          pWordProps->fFontSize)) {
+                  secinfo.WordProps.fFontSize = pWordProps->fFontSize;
+                  bSet = TRUE;
+                }
+                break;
+              case EP_WORDCOLOR:
+                if (secinfo.WordProps.dwWordColor != pWordProps->dwWordColor) {
+                  secinfo.WordProps.dwWordColor = pWordProps->dwWordColor;
+                  bSet = TRUE;
+                }
+                break;
+              case EP_SCRIPTTYPE:
+                if (secinfo.WordProps.nScriptType != pWordProps->nScriptType) {
+                  secinfo.WordProps.nScriptType = pWordProps->nScriptType;
+                  bSet = TRUE;
+                }
+                break;
+              case EP_CHARSPACE:
+                if (!FX_EDIT_IsFloatEqual(secinfo.WordProps.fCharSpace,
+                                          pWordProps->fCharSpace)) {
+                  secinfo.WordProps.fCharSpace = pWordProps->fCharSpace;
+                  bSet = TRUE;
+                }
+                break;
+              case EP_HORZSCALE:
+                if (secinfo.WordProps.nHorzScale != pWordProps->nHorzScale) {
+                  secinfo.WordProps.nHorzScale = pWordProps->nHorzScale;
+                  bSet = TRUE;
+                }
+                break;
+              case EP_UNDERLINE:
+                if (pWordProps->nWordStyle & PVTWORD_STYLE_UNDERLINE) {
+                  if ((secinfo.WordProps.nWordStyle &
+                       PVTWORD_STYLE_UNDERLINE) == 0) {
+                    secinfo.WordProps.nWordStyle |= PVTWORD_STYLE_UNDERLINE;
+                    bSet = TRUE;
+                  }
+                } else {
+                  if ((secinfo.WordProps.nWordStyle &
+                       PVTWORD_STYLE_UNDERLINE) != 0) {
+                    secinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_UNDERLINE;
+                    bSet = TRUE;
+                  }
+                }
+                break;
+              case EP_CROSSOUT:
+                if (pWordProps->nWordStyle & PVTWORD_STYLE_CROSSOUT) {
+                  if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_CROSSOUT) ==
+                      0) {
+                    secinfo.WordProps.nWordStyle |= PVTWORD_STYLE_CROSSOUT;
+                    bSet = TRUE;
+                  }
+                } else {
+                  if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_CROSSOUT) !=
+                      0) {
+                    secinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_CROSSOUT;
+                    bSet = TRUE;
+                  }
+                }
+                break;
+              case EP_BOLD:
+                if (pWordProps->nWordStyle & PVTWORD_STYLE_BOLD) {
+                  if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_BOLD) ==
+                      0) {
+                    secinfo.WordProps.nWordStyle |= PVTWORD_STYLE_BOLD;
+                    bSet = TRUE;
+                  }
+                } else {
+                  if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_BOLD) !=
+                      0) {
+                    secinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_BOLD;
+                    bSet = TRUE;
+                  }
+                }
+                break;
+              case EP_ITALIC:
+                if (pWordProps->nWordStyle & PVTWORD_STYLE_ITALIC) {
+                  if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_ITALIC) ==
+                      0) {
+                    secinfo.WordProps.nWordStyle |= PVTWORD_STYLE_ITALIC;
+                    bSet = TRUE;
+                  }
+                } else {
+                  if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_ITALIC) !=
+                      0) {
+                    secinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_ITALIC;
+                    bSet = TRUE;
+                  }
+                }
+                break;
+              default:
+                break;
+            }
+          }
+        }
+      }
+
+      if (bSet) {
+        pIterator->SetSection(secinfo);
+
+        if (bAddUndo && m_bEnableUndo) {
+          AddEditUndoItem(new CFXEU_SetSecProps(
+              this, place, eProps, OldSecinfo.SecProps, OldSecinfo.WordProps,
+              secinfo.SecProps, secinfo.WordProps, wr));
+        }
+      }
+
+      pIterator->SetAt(oldplace);
+
+      return bSet;
+    }
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFX_Edit::SetWordProps(EDIT_PROPS_E eProps,
+                               const CPVT_WordPlace& place,
+                               const CPVT_WordProps* pWordProps,
+                               const CPVT_WordRange& wr,
+                               FX_BOOL bAddUndo) {
+  if (m_pVT->IsValid() && m_pVT->IsRichText()) {
+    if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+      FX_BOOL bSet = FALSE;
+      CPVT_Word wordinfo;
+      CPVT_Word OldWordinfo;
+
+      CPVT_WordPlace oldplace = pIterator->GetAt();
+
+      if (pWordProps) {
+        pIterator->SetAt(place);
+        if (pIterator->GetWord(wordinfo)) {
+          if (bAddUndo)
+            OldWordinfo = wordinfo;
+
+          switch (eProps) {
+            case EP_FONTINDEX:
+              if (wordinfo.WordProps.nFontIndex != pWordProps->nFontIndex) {
+                if (IFX_Edit_FontMap* pFontMap = GetFontMap()) {
+                  wordinfo.WordProps.nFontIndex = pFontMap->GetWordFontIndex(
+                      wordinfo.Word, wordinfo.nCharset, pWordProps->nFontIndex);
+                }
+                bSet = TRUE;
+              }
+              break;
+            case EP_FONTSIZE:
+              if (!FX_EDIT_IsFloatEqual(wordinfo.WordProps.fFontSize,
+                                        pWordProps->fFontSize)) {
+                wordinfo.WordProps.fFontSize = pWordProps->fFontSize;
+                bSet = TRUE;
+              }
+              break;
+            case EP_WORDCOLOR:
+              if (wordinfo.WordProps.dwWordColor != pWordProps->dwWordColor) {
+                wordinfo.WordProps.dwWordColor = pWordProps->dwWordColor;
+                bSet = TRUE;
+              }
+              break;
+            case EP_SCRIPTTYPE:
+              if (wordinfo.WordProps.nScriptType != pWordProps->nScriptType) {
+                wordinfo.WordProps.nScriptType = pWordProps->nScriptType;
+                bSet = TRUE;
+              }
+              break;
+            case EP_CHARSPACE:
+              if (!FX_EDIT_IsFloatEqual(wordinfo.WordProps.fCharSpace,
+                                        pWordProps->fCharSpace)) {
+                wordinfo.WordProps.fCharSpace = pWordProps->fCharSpace;
+                bSet = TRUE;
+              }
+              break;
+            case EP_HORZSCALE:
+              if (wordinfo.WordProps.nHorzScale != pWordProps->nHorzScale) {
+                wordinfo.WordProps.nHorzScale = pWordProps->nHorzScale;
+                bSet = TRUE;
+              }
+              break;
+            case EP_UNDERLINE:
+              if (pWordProps->nWordStyle & PVTWORD_STYLE_UNDERLINE) {
+                if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_UNDERLINE) ==
+                    0) {
+                  wordinfo.WordProps.nWordStyle |= PVTWORD_STYLE_UNDERLINE;
+                  bSet = TRUE;
+                }
+              } else {
+                if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_UNDERLINE) !=
+                    0) {
+                  wordinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_UNDERLINE;
+                  bSet = TRUE;
+                }
+              }
+              break;
+            case EP_CROSSOUT:
+              if (pWordProps->nWordStyle & PVTWORD_STYLE_CROSSOUT) {
+                if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_CROSSOUT) ==
+                    0) {
+                  wordinfo.WordProps.nWordStyle |= PVTWORD_STYLE_CROSSOUT;
+                  bSet = TRUE;
+                }
+              } else {
+                if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_CROSSOUT) !=
+                    0) {
+                  wordinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_CROSSOUT;
+                  bSet = TRUE;
+                }
+              }
+              break;
+            case EP_BOLD:
+              if (pWordProps->nWordStyle & PVTWORD_STYLE_BOLD) {
+                if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_BOLD) == 0) {
+                  wordinfo.WordProps.nWordStyle |= PVTWORD_STYLE_BOLD;
+                  bSet = TRUE;
+                }
+              } else {
+                if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_BOLD) != 0) {
+                  wordinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_BOLD;
+                  bSet = TRUE;
+                }
+              }
+              break;
+            case EP_ITALIC:
+              if (pWordProps->nWordStyle & PVTWORD_STYLE_ITALIC) {
+                if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_ITALIC) ==
+                    0) {
+                  wordinfo.WordProps.nWordStyle |= PVTWORD_STYLE_ITALIC;
+                  bSet = TRUE;
+                }
+              } else {
+                if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_ITALIC) !=
+                    0) {
+                  wordinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_ITALIC;
+                  bSet = TRUE;
+                }
+              }
+              break;
+            default:
+              break;
+          }
+        }
+      }
+
+      if (bSet) {
+        pIterator->SetWord(wordinfo);
+
+        if (bAddUndo && m_bEnableUndo) {
+          AddEditUndoItem(new CFXEU_SetWordProps(this, place, eProps,
+                                                 OldWordinfo.WordProps,
+                                                 wordinfo.WordProps, wr));
+        }
+      }
+
+      pIterator->SetAt(oldplace);
+      return bSet;
+    }
+  }
+
+  return FALSE;
+}
+
+void CFX_Edit::SetText(const FX_WCHAR* text,
+                       int32_t charset /*= DEFAULT_CHARSET*/,
+                       const CPVT_SecProps* pSecProps /*= NULL*/,
+                       const CPVT_WordProps* pWordProps /*= NULL*/) {
+  SetText(text, charset, pSecProps, pWordProps, TRUE, TRUE);
+}
+
+FX_BOOL CFX_Edit::InsertWord(FX_WORD word,
+                             int32_t charset /*= DEFAULT_CHARSET*/,
+                             const CPVT_WordProps* pWordProps /*= NULL*/) {
+  return InsertWord(word, charset, pWordProps, TRUE, TRUE);
+}
+
+FX_BOOL CFX_Edit::InsertReturn(const CPVT_SecProps* pSecProps /*= NULL*/,
+                               const CPVT_WordProps* pWordProps /*= NULL*/) {
+  return InsertReturn(pSecProps, pWordProps, TRUE, TRUE);
+}
+
+FX_BOOL CFX_Edit::Backspace() {
+  return Backspace(TRUE, TRUE);
+}
+
+FX_BOOL CFX_Edit::Delete() {
+  return Delete(TRUE, TRUE);
+}
+
+FX_BOOL CFX_Edit::Clear() {
+  return Clear(TRUE, TRUE);
+}
+
+FX_BOOL CFX_Edit::InsertText(const FX_WCHAR* text,
+                             int32_t charset /*= DEFAULT_CHARSET*/,
+                             const CPVT_SecProps* pSecProps /*= NULL*/,
+                             const CPVT_WordProps* pWordProps /*= NULL*/) {
+  return InsertText(text, charset, pSecProps, pWordProps, TRUE, TRUE);
+}
 
-       if (wr1.EndPos.WordCmp(wr2.EndPos) < 0)
-       {
-               wrRet.EndPos = wr2.EndPos;
-       }
-       else
-       {
-               wrRet.EndPos = wr1.EndPos;
-       }
+FX_FLOAT CFX_Edit::GetFontSize() const {
+  return m_pVT->GetFontSize();
+}
 
-       return wrRet;
+FX_WORD CFX_Edit::GetPasswordChar() const {
+  return m_pVT->GetPasswordChar();
 }
 
-FX_BOOL        CFX_Edit::IsRichText() const
-{
-       return m_pVT->IsRichText();
+int32_t CFX_Edit::GetCharArray() const {
+  return m_pVT->GetCharArray();
 }
 
-void CFX_Edit::SetRichText(FX_BOOL bRichText/* =TRUE */, FX_BOOL bPaint/* = TRUE*/)
-{
-       m_pVT->SetRichText(bRichText);
-       if (bPaint) Paint();
+CPDF_Rect CFX_Edit::GetPlateRect() const {
+  return m_pVT->GetPlateRect();
 }
 
-FX_BOOL CFX_Edit::SetRichFontIndex(FX_INT32 nFontIndex)
-{
-       CPVT_WordProps WordProps;
-       WordProps.nFontIndex = nFontIndex;
-       return SetRichTextProps(EP_FONTINDEX,NULL,&WordProps);  
+CPDF_Rect CFX_Edit::GetContentRect() const {
+  return VTToEdit(m_pVT->GetContentRect());
 }
 
-FX_BOOL CFX_Edit::SetRichFontSize(FX_FLOAT fFontSize)
-{      
-       CPVT_WordProps WordProps;
-       WordProps.fFontSize = fFontSize;
-       return SetRichTextProps(EP_FONTSIZE,NULL,&WordProps);   
+int32_t CFX_Edit::GetHorzScale() const {
+  return m_pVT->GetHorzScale();
 }
 
-FX_BOOL CFX_Edit::SetRichTextColor(FX_COLORREF dwColor)
-{
-       CPVT_WordProps WordProps;
-       WordProps.dwWordColor = dwColor;
-       return SetRichTextProps(EP_WORDCOLOR,NULL,&WordProps);  
+FX_FLOAT CFX_Edit::GetCharSpace() const {
+  return m_pVT->GetCharSpace();
 }
 
-FX_BOOL CFX_Edit::SetRichTextScript(FX_INT32 nScriptType)
-{
-       CPVT_WordProps WordProps;
-       WordProps.nScriptType = nScriptType;
-       return SetRichTextProps(EP_SCRIPTTYPE,NULL,&WordProps); 
+// inner methods
+
+CPVT_WordRange CFX_Edit::GetWholeWordRange() const {
+  if (m_pVT->IsValid())
+    return CPVT_WordRange(m_pVT->GetBeginWordPlace(), m_pVT->GetEndWordPlace());
+
+  return CPVT_WordRange();
 }
 
-FX_BOOL CFX_Edit::SetRichTextBold(FX_BOOL bBold)
-{
-       CPVT_WordProps WordProps;
-       if (bBold)
-               WordProps.nWordStyle |= PVTWORD_STYLE_BOLD;
-       return SetRichTextProps(EP_BOLD,NULL,&WordProps);
+CPVT_WordRange CFX_Edit::GetVisibleWordRange() const {
+  if (m_bEnableOverflow)
+    return GetWholeWordRange();
+
+  if (m_pVT->IsValid()) {
+    CPDF_Rect rcPlate = m_pVT->GetPlateRect();
+
+    CPVT_WordPlace place1 =
+        m_pVT->SearchWordPlace(EditToVT(CPDF_Point(rcPlate.left, rcPlate.top)));
+    CPVT_WordPlace place2 = m_pVT->SearchWordPlace(
+        EditToVT(CPDF_Point(rcPlate.right, rcPlate.bottom)));
+
+    return CPVT_WordRange(place1, place2);
+  }
+
+  return CPVT_WordRange();
 }
 
-FX_BOOL CFX_Edit::SetRichTextItalic(FX_BOOL bItalic)
-{
-       CPVT_WordProps WordProps;
-       if (bItalic)
-               WordProps.nWordStyle |= PVTWORD_STYLE_ITALIC;
-       return SetRichTextProps(EP_ITALIC,NULL,&WordProps);
+CPVT_WordPlace CFX_Edit::SearchWordPlace(const CPDF_Point& point) const {
+  if (m_pVT->IsValid()) {
+    return m_pVT->SearchWordPlace(EditToVT(point));
+  }
+
+  return CPVT_WordPlace();
 }
 
-FX_BOOL CFX_Edit::SetRichTextUnderline(FX_BOOL bUnderline)
-{
-       CPVT_WordProps WordProps;
-       if (bUnderline)
-               WordProps.nWordStyle |= PVTWORD_STYLE_UNDERLINE;
-       return SetRichTextProps(EP_UNDERLINE,NULL,&WordProps);
-}
-
-FX_BOOL CFX_Edit::SetRichTextCrossout(FX_BOOL bCrossout)
-{
-       CPVT_WordProps WordProps;
-       if (bCrossout)
-               WordProps.nWordStyle |= PVTWORD_STYLE_CROSSOUT;
-       return SetRichTextProps(EP_CROSSOUT,NULL,&WordProps);
-}
-
-FX_BOOL CFX_Edit::SetRichTextCharSpace(FX_FLOAT fCharSpace)
-{
-       CPVT_WordProps WordProps;
-       WordProps.fCharSpace = fCharSpace;
-       return SetRichTextProps(EP_CHARSPACE,NULL,&WordProps);  
-}
-
-FX_BOOL CFX_Edit::SetRichTextHorzScale(FX_INT32 nHorzScale /*= 100*/)
-{
-       CPVT_WordProps WordProps;
-       WordProps.nHorzScale = nHorzScale;
-       return SetRichTextProps(EP_HORZSCALE,NULL,&WordProps);  
-}
-
-FX_BOOL CFX_Edit::SetRichTextLineLeading(FX_FLOAT fLineLeading)
-{
-       CPVT_SecProps SecProps;
-       SecProps.fLineLeading = fLineLeading;
-       return SetRichTextProps(EP_LINELEADING,&SecProps,NULL); 
-}
-
-FX_BOOL CFX_Edit::SetRichTextLineIndent(FX_FLOAT fLineIndent)
-{
-       CPVT_SecProps SecProps;
-       SecProps.fLineIndent = fLineIndent;
-       return SetRichTextProps(EP_LINEINDENT,&SecProps,NULL);
-}
-
-FX_BOOL        CFX_Edit::SetRichTextAlignment(FX_INT32 nAlignment)
-{
-       CPVT_SecProps SecProps;
-       SecProps.nAlignment = nAlignment;
-       return SetRichTextProps(EP_ALIGNMENT,&SecProps,NULL);
-}
-
-FX_BOOL CFX_Edit::SetRichTextProps(EDIT_PROPS_E eProps, const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps)
-{
-       FX_BOOL bSet = FALSE;
-       FX_BOOL bSet1,bSet2;
-       if (m_pVT->IsValid() && m_pVT->IsRichText())
-       {
-               if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-               {
-                       CPVT_WordRange wrTemp = m_SelState.ConvertToWordRange();
-                       
-                       m_pVT->UpdateWordPlace(wrTemp.BeginPos);
-                       m_pVT->UpdateWordPlace(wrTemp.EndPos);
-                       pIterator->SetAt(wrTemp.BeginPos);
-
-                       BeginGroupUndo(L"");;
-
-                       bSet = SetSecProps(eProps,wrTemp.BeginPos,pSecProps,pWordProps,wrTemp,TRUE);
-
-                       while (pIterator->NextWord())
-                       {
-                               CPVT_WordPlace place = pIterator->GetAt();
-                               if (place.WordCmp(wrTemp.EndPos) > 0) break;
-                               bSet1 = SetSecProps(eProps,place,pSecProps,pWordProps,wrTemp,TRUE);
-                               bSet2 = SetWordProps(eProps,place,pWordProps,wrTemp,TRUE);
-                               
-                               if (!bSet)
-                                       bSet = (bSet1 || bSet2);
-                       }
-
-                       EndGroupUndo();
-
-                       if (bSet)
-                       {
-                               PaintSetProps(eProps,wrTemp);
-                       }
-               }
-       }       
-
-       return bSet;
-}
-
-void CFX_Edit::PaintSetProps(EDIT_PROPS_E eProps, const CPVT_WordRange & wr)
-{
-       switch(eProps)
-       {
-       case EP_LINELEADING:
-       case EP_LINEINDENT:
-       case EP_ALIGNMENT:
-               RearrangePart(wr);
-               ScrollToCaret();
-               Refresh(RP_ANALYSE);
-               SetCaretOrigin();
-               SetCaretInfo(); 
-               break;                                  
-       case EP_WORDCOLOR:
-       case EP_UNDERLINE:
-       case EP_CROSSOUT:
-               Refresh(RP_OPTIONAL,&wr);
-               break;
-       case EP_FONTINDEX:
-       case EP_FONTSIZE:
-       case EP_SCRIPTTYPE:                                     
-       case EP_CHARSPACE:
-       case EP_HORZSCALE:
-       case EP_BOLD:
-       case EP_ITALIC:
-               RearrangePart(wr);
-               ScrollToCaret();
-
-               CPVT_WordRange wrRefresh(m_pVT->GetSectionBeginPlace(wr.BeginPos),
-                       m_pVT->GetSectionEndPlace(wr.EndPos));
-               Refresh(RP_ANALYSE,&wrRefresh);
-
-               SetCaretOrigin();
-               SetCaretInfo(); 
-               break;
-       }                               
-}
-
-FX_BOOL CFX_Edit::SetSecProps(EDIT_PROPS_E eProps, const CPVT_WordPlace & place, 
-                                                          const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps, 
-                                                          const CPVT_WordRange & wr, FX_BOOL bAddUndo)
-{
-       if (m_pVT->IsValid() && m_pVT->IsRichText())
-       {
-               if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-               {
-                       FX_BOOL bSet = FALSE;
-                       CPVT_Section secinfo;
-                       CPVT_Section OldSecinfo;
-
-                       CPVT_WordPlace oldplace = pIterator->GetAt();
-
-                       if (eProps == EP_LINELEADING || eProps == EP_LINEINDENT || eProps == EP_ALIGNMENT)
-                       {
-                               if (pSecProps)
-                               {
-                                       pIterator->SetAt(place);
-                                       if (pIterator->GetSection(secinfo))
-                                       {
-                                               if (bAddUndo) OldSecinfo = secinfo;
-
-                                               switch(eProps)
-                                               {
-                                               case EP_LINELEADING:                            
-                                                       if (!FX_EDIT_IsFloatEqual(secinfo.SecProps.fLineLeading,pSecProps->fLineLeading))
-                                                       {
-                                                               secinfo.SecProps.fLineLeading = pSecProps->fLineLeading;                                                        
-                                                               bSet = TRUE;
-                                                       }
-                                                       break;
-                                               case EP_LINEINDENT:
-                                                       if (!FX_EDIT_IsFloatEqual(secinfo.SecProps.fLineIndent,pSecProps->fLineIndent))
-                                                       {
-                                                               secinfo.SecProps.fLineIndent = pSecProps->fLineIndent;
-                                                               bSet = TRUE;
-                                                       }
-                                                       break;
-                                               case EP_ALIGNMENT:
-                                                       if (secinfo.SecProps.nAlignment != pSecProps->nAlignment)
-                                                       {
-                                                               secinfo.SecProps.nAlignment = pSecProps->nAlignment;
-                                                               bSet = TRUE;
-                                                       }
-                                                       break;
-                                               default:
-                                                       break;
-                                               }
-                                       }
-                               }
-                       }
-                       else
-                       {
-                               if (pWordProps && place == m_pVT->GetSectionBeginPlace(place))
-                               {
-                                       pIterator->SetAt(place);
-                                       if (pIterator->GetSection(secinfo))
-                                       {
-                                               if (bAddUndo) OldSecinfo = secinfo;
-
-                                               switch(eProps)
-                                               {
-                                               case EP_FONTINDEX:                              
-                                                       if (secinfo.WordProps.nFontIndex != pWordProps->nFontIndex)
-                                                       {
-                                                               secinfo.WordProps.nFontIndex = pWordProps->nFontIndex;
-                                                               bSet = TRUE;
-                                                       }
-                                                       break;
-                                               case EP_FONTSIZE:
-                                                       if (!FX_EDIT_IsFloatEqual(secinfo.WordProps.fFontSize,pWordProps->fFontSize))
-                                                       {
-                                                               secinfo.WordProps.fFontSize = pWordProps->fFontSize;
-                                                               bSet = TRUE;
-                                                       }
-                                                       break;
-                                               case EP_WORDCOLOR:
-                                                       if (secinfo.WordProps.dwWordColor != pWordProps->dwWordColor)
-                                                       {
-                                                               secinfo.WordProps.dwWordColor = pWordProps->dwWordColor;
-                                                               bSet = TRUE;
-                                                       }
-                                                       break;
-                                               case EP_SCRIPTTYPE:                             
-                                                       if (secinfo.WordProps.nScriptType != pWordProps->nScriptType)
-                                                       {
-                                                               secinfo.WordProps.nScriptType = pWordProps->nScriptType;
-                                                               bSet = TRUE;
-                                                       }
-                                                       break;
-                                               case EP_CHARSPACE:                      
-                                                       if (!FX_EDIT_IsFloatEqual(secinfo.WordProps.fCharSpace,pWordProps->fCharSpace))
-                                                       {
-                                                               secinfo.WordProps.fCharSpace = pWordProps->fCharSpace;
-                                                               bSet = TRUE;
-                                                       }
-                                                       break;
-                                               case EP_HORZSCALE:                              
-                                                       if (secinfo.WordProps.nHorzScale != pWordProps->nHorzScale)
-                                                       {
-                                                               secinfo.WordProps.nHorzScale = pWordProps->nHorzScale;
-                                                               bSet = TRUE;
-                                                       }
-                                                       break;
-                                               case EP_UNDERLINE:
-                                                       if (pWordProps->nWordStyle & PVTWORD_STYLE_UNDERLINE)
-                                                       {
-                                                               if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_UNDERLINE) == 0)
-                                                               {
-                                                                       secinfo.WordProps.nWordStyle |= PVTWORD_STYLE_UNDERLINE; 
-                                                                       bSet = TRUE;
-                                                               }
-                                                       }
-                                                       else
-                                                       {
-                                                               if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_UNDERLINE) != 0)
-                                                               {
-                                                                       secinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_UNDERLINE;
-                                                                       bSet = TRUE;
-                                                               }
-                                                       }
-                                                       break;
-                                               case EP_CROSSOUT:
-                                                       if (pWordProps->nWordStyle & PVTWORD_STYLE_CROSSOUT)
-                                                       {
-                                                               if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_CROSSOUT) == 0)
-                                                               {
-                                                                       secinfo.WordProps.nWordStyle |= PVTWORD_STYLE_CROSSOUT; 
-                                                                       bSet = TRUE;
-                                                               }
-                                                       }
-                                                       else
-                                                       {
-                                                               if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_CROSSOUT) != 0)
-                                                               {
-                                                                       secinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_CROSSOUT;
-                                                                       bSet = TRUE;
-                                                               }
-                                                       }
-                                                       break;
-                                               case EP_BOLD:
-                                                       if (pWordProps->nWordStyle & PVTWORD_STYLE_BOLD)
-                                                       {
-                                                               if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_BOLD) == 0)
-                                                               {
-                                                                       secinfo.WordProps.nWordStyle |= PVTWORD_STYLE_BOLD; 
-                                                                       bSet = TRUE;
-                                                               }
-                                                       }
-                                                       else
-                                                       {
-                                                               if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_BOLD) != 0)
-                                                               {
-                                                                       secinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_BOLD;
-                                                                       bSet = TRUE;
-                                                               }
-                                                       }
-                                                       break;
-                                               case EP_ITALIC:
-                                                       if (pWordProps->nWordStyle & PVTWORD_STYLE_ITALIC)
-                                                       {
-                                                               if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_ITALIC) == 0)
-                                                               {
-                                                                       secinfo.WordProps.nWordStyle |= PVTWORD_STYLE_ITALIC; 
-                                                                       bSet = TRUE;
-                                                               }
-                                                       }
-                                                       else
-                                                       {
-                                                               if ((secinfo.WordProps.nWordStyle & PVTWORD_STYLE_ITALIC) != 0)
-                                                               {
-                                                                       secinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_ITALIC;
-                                                                       bSet = TRUE;
-                                                               }
-                                                       }
-                                                       break;
-                                               default:
-                                                       break;
-                                               }
-                                       }
-                               }
-                       }
-
-                       if (bSet)
-                       {
-                               pIterator->SetSection(secinfo);
-
-                               if (bAddUndo && m_bEnableUndo)
-                               {
-                                       AddEditUndoItem(new CFXEU_SetSecProps
-                                               (this,place,eProps,OldSecinfo.SecProps,OldSecinfo.WordProps,secinfo.SecProps,secinfo.WordProps,wr));
-                               }
-                       }
-
-                       pIterator->SetAt(oldplace);
-
-                       return bSet;
-               }
-       }
-       
-       return FALSE;
-}
-
-FX_BOOL CFX_Edit::SetWordProps(EDIT_PROPS_E eProps, const CPVT_WordPlace & place, 
-                                                               const CPVT_WordProps * pWordProps, const CPVT_WordRange & wr, FX_BOOL bAddUndo)
-{
-       if (m_pVT->IsValid() && m_pVT->IsRichText())
-       {
-               if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-               {
-                       FX_BOOL bSet = FALSE;
-                       CPVT_Word wordinfo;
-                       CPVT_Word OldWordinfo;
-
-                       CPVT_WordPlace oldplace = pIterator->GetAt();
-
-                       if (pWordProps)
-                       {
-                               pIterator->SetAt(place);
-                               if (pIterator->GetWord(wordinfo))
-                               {
-                                       if (bAddUndo) OldWordinfo = wordinfo;
-
-                                       switch(eProps)
-                                       {
-                                       case EP_FONTINDEX:                              
-                                               if (wordinfo.WordProps.nFontIndex != pWordProps->nFontIndex)
-                                               {
-                                                       if (IFX_Edit_FontMap* pFontMap = this->GetFontMap())
-                                                       {
-                                                               wordinfo.WordProps.nFontIndex = pFontMap->GetWordFontIndex(wordinfo.Word,wordinfo.nCharset,pWordProps->nFontIndex);
-                                                       }
-                                                       bSet = TRUE;
-                                               }
-                                               break;
-                                       case EP_FONTSIZE:
-                                               if (!FX_EDIT_IsFloatEqual(wordinfo.WordProps.fFontSize,pWordProps->fFontSize))
-                                               {
-                                                       wordinfo.WordProps.fFontSize = pWordProps->fFontSize;
-                                                       bSet = TRUE;
-                                               }
-                                               break;
-                                       case EP_WORDCOLOR:
-                                               if (wordinfo.WordProps.dwWordColor != pWordProps->dwWordColor)
-                                               {
-                                                       wordinfo.WordProps.dwWordColor = pWordProps->dwWordColor;
-                                                       bSet = TRUE;
-                                               }
-                                               break;
-                                       case EP_SCRIPTTYPE:
-                                               if (wordinfo.WordProps.nScriptType != pWordProps->nScriptType)
-                                               {
-                                                       wordinfo.WordProps.nScriptType = pWordProps->nScriptType;
-                                                       bSet = TRUE;
-                                               }
-                                               break;
-                                       case EP_CHARSPACE:
-                                               if (!FX_EDIT_IsFloatEqual(wordinfo.WordProps.fCharSpace,pWordProps->fCharSpace))
-                                               {
-                                                       wordinfo.WordProps.fCharSpace = pWordProps->fCharSpace;
-                                                       bSet = TRUE;
-                                               }
-                                               break;
-                                       case EP_HORZSCALE:
-                                               if (wordinfo.WordProps.nHorzScale != pWordProps->nHorzScale)
-                                               {
-                                                       wordinfo.WordProps.nHorzScale = pWordProps->nHorzScale;
-                                                       bSet = TRUE;
-                                               }
-                                               break;
-                                       case EP_UNDERLINE:
-                                               if (pWordProps->nWordStyle & PVTWORD_STYLE_UNDERLINE)
-                                               {
-                                                       if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_UNDERLINE) == 0)
-                                                       {
-                                                               wordinfo.WordProps.nWordStyle |= PVTWORD_STYLE_UNDERLINE;
-                                                               bSet = TRUE;
-                                                       }
-                                               }
-                                               else
-                                               {
-                                                       if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_UNDERLINE) != 0)
-                                                       {
-                                                               wordinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_UNDERLINE;
-                                                               bSet = TRUE;
-                                                       }
-                                               }
-                                               break;
-                                       case EP_CROSSOUT:
-                                               if (pWordProps->nWordStyle & PVTWORD_STYLE_CROSSOUT)
-                                               {
-                                                       if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_CROSSOUT) == 0)
-                                                       {
-                                                               wordinfo.WordProps.nWordStyle |= PVTWORD_STYLE_CROSSOUT; 
-                                                               bSet = TRUE;
-                                                       }
-                                               }
-                                               else
-                                               {
-                                                       if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_CROSSOUT) != 0)
-                                                       {
-                                                               wordinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_CROSSOUT;
-                                                               bSet = TRUE;
-                                                       }
-                                               }
-                                               break;
-                                       case EP_BOLD:
-                                               if (pWordProps->nWordStyle & PVTWORD_STYLE_BOLD)
-                                               {
-                                                       if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_BOLD) == 0)
-                                                       {
-                                                               wordinfo.WordProps.nWordStyle |= PVTWORD_STYLE_BOLD; 
-                                                               bSet = TRUE;
-                                                       }
-                                               }
-                                               else
-                                               {
-                                                       if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_BOLD) != 0)
-                                                       {
-                                                               wordinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_BOLD;
-                                                               bSet = TRUE;
-                                                       }
-                                               }
-                                               break;
-                                       case EP_ITALIC:
-                                               if (pWordProps->nWordStyle & PVTWORD_STYLE_ITALIC)
-                                               {
-                                                       if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_ITALIC) == 0)
-                                                       {
-                                                               wordinfo.WordProps.nWordStyle |= PVTWORD_STYLE_ITALIC; 
-                                                               bSet = TRUE;
-                                                       }
-                                               }
-                                               else
-                                               {
-                                                       if ((wordinfo.WordProps.nWordStyle & PVTWORD_STYLE_ITALIC) != 0)
-                                                       {
-                                                               wordinfo.WordProps.nWordStyle &= ~PVTWORD_STYLE_ITALIC;
-                                                               bSet = TRUE;
-                                                       }
-                                               }
-                                               break;
-                                       default:
-                                               break;
-                                       }
-                               }
-                       }       
-
-                       if (bSet)
-                       {
-                               pIterator->SetWord(wordinfo);
-
-                               if (bAddUndo && m_bEnableUndo)
-                               {
-                                       AddEditUndoItem(new CFXEU_SetWordProps
-                                               (this,place,eProps,OldWordinfo.WordProps,wordinfo.WordProps,wr));
-                               }
-                       }
-                       
-                       pIterator->SetAt(oldplace);
-                       return bSet;
-               }
-       }
-
-       return FALSE;
-}
-
-void CFX_Edit::SetText(FX_LPCWSTR text,FX_INT32 charset /*= DEFAULT_CHARSET*/,
-                                               const CPVT_SecProps * pSecProps /*= NULL*/,const CPVT_WordProps * pWordProps /*= NULL*/)
-{
-       SetText(text,charset,pSecProps,pWordProps,TRUE,TRUE);
-}
-
-FX_BOOL CFX_Edit::InsertWord(FX_WORD word, FX_INT32 charset /*= DEFAULT_CHARSET*/, const CPVT_WordProps * pWordProps /*= NULL*/)
-{
-       return InsertWord(word,charset,pWordProps,TRUE,TRUE);
-}
-
-FX_BOOL CFX_Edit::InsertReturn(const CPVT_SecProps * pSecProps /*= NULL*/,const CPVT_WordProps * pWordProps /*= NULL*/)
-{
-       return InsertReturn(pSecProps,pWordProps,TRUE,TRUE);
-}
-
-FX_BOOL CFX_Edit::Backspace()
-{
-       return Backspace(TRUE,TRUE);
-}
-
-FX_BOOL CFX_Edit::Delete()
-{
-       return Delete(TRUE,TRUE);
-}
-
-FX_BOOL CFX_Edit::Clear()
-{
-       return Clear(TRUE,TRUE);
-}
-
-FX_BOOL CFX_Edit::InsertText(FX_LPCWSTR text, FX_INT32 charset /*= DEFAULT_CHARSET*/,
-                                                               const CPVT_SecProps * pSecProps /*= NULL*/,const CPVT_WordProps * pWordProps /*= NULL*/)
-{
-       return InsertText(text,charset,pSecProps,pWordProps,TRUE,TRUE);
-}
-
-FX_FLOAT CFX_Edit::GetFontSize() const
-{
-       return m_pVT->GetFontSize();
+void CFX_Edit::Paint() {
+  if (m_pVT->IsValid()) {
+    RearrangeAll();
+    ScrollToCaret();
+    Refresh(RP_NOANALYSE);
+    SetCaretOrigin();
+    SetCaretInfo();
+  }
+}
+
+void CFX_Edit::RearrangeAll() {
+  if (m_pVT->IsValid()) {
+    m_pVT->UpdateWordPlace(m_wpCaret);
+    m_pVT->RearrangeAll();
+    m_pVT->UpdateWordPlace(m_wpCaret);
+    SetScrollInfo();
+    SetContentChanged();
+  }
 }
 
-FX_WORD CFX_Edit::GetPasswordChar() const
-{
-       return m_pVT->GetPasswordChar();
+void CFX_Edit::RearrangePart(const CPVT_WordRange& range) {
+  if (m_pVT->IsValid()) {
+    m_pVT->UpdateWordPlace(m_wpCaret);
+    m_pVT->RearrangePart(range);
+    m_pVT->UpdateWordPlace(m_wpCaret);
+    SetScrollInfo();
+    SetContentChanged();
+  }
 }
 
-FX_INT32 CFX_Edit::GetCharArray() const
-{
-       return m_pVT->GetCharArray();
+void CFX_Edit::SetContentChanged() {
+  if (m_bNotify && m_pNotify) {
+    CPDF_Rect rcContent = m_pVT->GetContentRect();
+    if (rcContent.Width() != m_rcOldContent.Width() ||
+        rcContent.Height() != m_rcOldContent.Height()) {
+      if (!m_bNotifyFlag) {
+        m_bNotifyFlag = TRUE;
+        m_pNotify->IOnContentChange(rcContent);
+        m_bNotifyFlag = FALSE;
+      }
+      m_rcOldContent = rcContent;
+    }
+  }
 }
 
-CPDF_Rect CFX_Edit::GetPlateRect() const
-{
-       return m_pVT->GetPlateRect();
+void CFX_Edit::SelectAll() {
+  if (m_pVT->IsValid()) {
+    m_SelState = GetWholeWordRange();
+    SetCaret(m_SelState.EndPos);
+
+    ScrollToCaret();
+    CPVT_WordRange wrVisible = GetVisibleWordRange();
+    Refresh(RP_OPTIONAL, &wrVisible);
+    SetCaretInfo();
+  }
 }
 
-CPDF_Rect CFX_Edit::GetContentRect() const
-{
-       return VTToEdit(m_pVT->GetContentRect());
+void CFX_Edit::SelectNone() {
+  if (m_pVT->IsValid()) {
+    if (m_SelState.IsExist()) {
+      CPVT_WordRange wrTemp = m_SelState.ConvertToWordRange();
+      m_SelState.Default();
+      Refresh(RP_OPTIONAL, &wrTemp);
+    }
+  }
 }
 
-FX_INT32 CFX_Edit::GetHorzScale() const
-{
-       return m_pVT->GetHorzScale();
+FX_BOOL CFX_Edit::IsSelected() const {
+  return m_SelState.IsExist();
 }
 
-FX_FLOAT CFX_Edit::GetCharSpace() const
-{
-       return m_pVT->GetCharSpace();
+CPDF_Point CFX_Edit::VTToEdit(const CPDF_Point& point) const {
+  CPDF_Rect rcContent = m_pVT->GetContentRect();
+  CPDF_Rect rcPlate = m_pVT->GetPlateRect();
+
+  FX_FLOAT fPadding = 0.0f;
+
+  switch (m_nAlignment) {
+    case 0:
+      fPadding = 0.0f;
+      break;
+    case 1:
+      fPadding = (rcPlate.Height() - rcContent.Height()) * 0.5f;
+      break;
+    case 2:
+      fPadding = rcPlate.Height() - rcContent.Height();
+      break;
+  }
+
+  return CPDF_Point(point.x - (m_ptScrollPos.x - rcPlate.left),
+                    point.y - (m_ptScrollPos.y + fPadding - rcPlate.top));
+}
+
+CPDF_Point CFX_Edit::EditToVT(const CPDF_Point& point) const {
+  CPDF_Rect rcContent = m_pVT->GetContentRect();
+  CPDF_Rect rcPlate = m_pVT->GetPlateRect();
+
+  FX_FLOAT fPadding = 0.0f;
+
+  switch (m_nAlignment) {
+    case 0:
+      fPadding = 0.0f;
+      break;
+    case 1:
+      fPadding = (rcPlate.Height() - rcContent.Height()) * 0.5f;
+      break;
+    case 2:
+      fPadding = rcPlate.Height() - rcContent.Height();
+      break;
+  }
+
+  return CPDF_Point(point.x + (m_ptScrollPos.x - rcPlate.left),
+                    point.y + (m_ptScrollPos.y + fPadding - rcPlate.top));
+}
+
+CPDF_Rect CFX_Edit::VTToEdit(const CPDF_Rect& rect) const {
+  CPDF_Point ptLeftBottom = VTToEdit(CPDF_Point(rect.left, rect.bottom));
+  CPDF_Point ptRightTop = VTToEdit(CPDF_Point(rect.right, rect.top));
+
+  return CPDF_Rect(ptLeftBottom.x, ptLeftBottom.y, ptRightTop.x, ptRightTop.y);
+}
+
+CPDF_Rect CFX_Edit::EditToVT(const CPDF_Rect& rect) const {
+  CPDF_Point ptLeftBottom = EditToVT(CPDF_Point(rect.left, rect.bottom));
+  CPDF_Point ptRightTop = EditToVT(CPDF_Point(rect.right, rect.top));
+
+  return CPDF_Rect(ptLeftBottom.x, ptLeftBottom.y, ptRightTop.x, ptRightTop.y);
+}
+
+void CFX_Edit::SetScrollInfo() {
+  if (m_bNotify && m_pNotify) {
+    CPDF_Rect rcPlate = m_pVT->GetPlateRect();
+    CPDF_Rect rcContent = m_pVT->GetContentRect();
+
+    if (!m_bNotifyFlag) {
+      m_bNotifyFlag = TRUE;
+      m_pNotify->IOnSetScrollInfoX(rcPlate.left, rcPlate.right, rcContent.left,
+                                   rcContent.right, rcPlate.Width() / 3,
+                                   rcPlate.Width());
+
+      m_pNotify->IOnSetScrollInfoY(rcPlate.bottom, rcPlate.top,
+                                   rcContent.bottom, rcContent.top,
+                                   rcPlate.Height() / 3, rcPlate.Height());
+      m_bNotifyFlag = FALSE;
+    }
+  }
+}
+
+void CFX_Edit::SetScrollPosX(FX_FLOAT fx) {
+  if (!m_bEnableScroll)
+    return;
+
+  if (m_pVT->IsValid()) {
+    if (!FX_EDIT_IsFloatEqual(m_ptScrollPos.x, fx)) {
+      m_ptScrollPos.x = fx;
+      Refresh(RP_NOANALYSE);
+
+      if (m_bNotify && m_pNotify) {
+        if (!m_bNotifyFlag) {
+          m_bNotifyFlag = TRUE;
+          m_pNotify->IOnSetScrollPosX(fx);
+          m_bNotifyFlag = FALSE;
+        }
+      }
+    }
+  }
+}
+
+void CFX_Edit::SetScrollPosY(FX_FLOAT fy) {
+  if (!m_bEnableScroll)
+    return;
+
+  if (m_pVT->IsValid()) {
+    if (!FX_EDIT_IsFloatEqual(m_ptScrollPos.y, fy)) {
+      m_ptScrollPos.y = fy;
+      Refresh(RP_NOANALYSE);
+
+      if (m_bNotify && m_pNotify) {
+        if (!m_bNotifyFlag) {
+          m_bNotifyFlag = TRUE;
+          m_pNotify->IOnSetScrollPosY(fy);
+          m_bNotifyFlag = FALSE;
+        }
+      }
+    }
+  }
+}
+
+void CFX_Edit::SetScrollPos(const CPDF_Point& point) {
+  SetScrollPosX(point.x);
+  SetScrollPosY(point.y);
+  SetScrollLimit();
+  SetCaretInfo();
+}
+
+CPDF_Point CFX_Edit::GetScrollPos() const {
+  return m_ptScrollPos;
+}
+
+void CFX_Edit::SetScrollLimit() {
+  if (m_pVT->IsValid()) {
+    CPDF_Rect rcContent = m_pVT->GetContentRect();
+    CPDF_Rect rcPlate = m_pVT->GetPlateRect();
+
+    if (rcPlate.Width() > rcContent.Width()) {
+      SetScrollPosX(rcPlate.left);
+    } else {
+      if (FX_EDIT_IsFloatSmaller(m_ptScrollPos.x, rcContent.left)) {
+        SetScrollPosX(rcContent.left);
+      } else if (FX_EDIT_IsFloatBigger(m_ptScrollPos.x,
+                                       rcContent.right - rcPlate.Width())) {
+        SetScrollPosX(rcContent.right - rcPlate.Width());
+      }
+    }
+
+    if (rcPlate.Height() > rcContent.Height()) {
+      SetScrollPosY(rcPlate.top);
+    } else {
+      if (FX_EDIT_IsFloatSmaller(m_ptScrollPos.y,
+                                 rcContent.bottom + rcPlate.Height())) {
+        SetScrollPosY(rcContent.bottom + rcPlate.Height());
+      } else if (FX_EDIT_IsFloatBigger(m_ptScrollPos.y, rcContent.top)) {
+        SetScrollPosY(rcContent.top);
+      }
+    }
+  }
+}
+
+void CFX_Edit::ScrollToCaret() {
+  SetScrollLimit();
+
+  if (m_pVT->IsValid()) {
+    CPDF_Point ptHead(0, 0);
+    CPDF_Point ptFoot(0, 0);
+
+    if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+      pIterator->SetAt(m_wpCaret);
+
+      CPVT_Word word;
+      CPVT_Line line;
+      if (pIterator->GetWord(word)) {
+        ptHead.x = word.ptWord.x + word.fWidth;
+        ptHead.y = word.ptWord.y + word.fAscent;
+        ptFoot.x = word.ptWord.x + word.fWidth;
+        ptFoot.y = word.ptWord.y + word.fDescent;
+      } else if (pIterator->GetLine(line)) {
+        ptHead.x = line.ptLine.x;
+        ptHead.y = line.ptLine.y + line.fLineAscent;
+        ptFoot.x = line.ptLine.x;
+        ptFoot.y = line.ptLine.y + line.fLineDescent;
+      }
+    }
+
+    CPDF_Point ptHeadEdit = VTToEdit(ptHead);
+    CPDF_Point ptFootEdit = VTToEdit(ptFoot);
+
+    CPDF_Rect rcPlate = m_pVT->GetPlateRect();
+
+    if (!FX_EDIT_IsFloatEqual(rcPlate.left, rcPlate.right)) {
+      if (FX_EDIT_IsFloatSmaller(ptHeadEdit.x, rcPlate.left) ||
+          FX_EDIT_IsFloatEqual(ptHeadEdit.x, rcPlate.left)) {
+        SetScrollPosX(ptHead.x);
+      } else if (FX_EDIT_IsFloatBigger(ptHeadEdit.x, rcPlate.right)) {
+        SetScrollPosX(ptHead.x - rcPlate.Width());
+      }
+    }
+
+    if (!FX_EDIT_IsFloatEqual(rcPlate.top, rcPlate.bottom)) {
+      if (FX_EDIT_IsFloatSmaller(ptFootEdit.y, rcPlate.bottom) ||
+          FX_EDIT_IsFloatEqual(ptFootEdit.y, rcPlate.bottom)) {
+        if (FX_EDIT_IsFloatSmaller(ptHeadEdit.y, rcPlate.top)) {
+          SetScrollPosY(ptFoot.y + rcPlate.Height());
+        }
+      } else if (FX_EDIT_IsFloatBigger(ptHeadEdit.y, rcPlate.top)) {
+        if (FX_EDIT_IsFloatBigger(ptFootEdit.y, rcPlate.bottom)) {
+          SetScrollPosY(ptHead.y);
+        }
+      }
+    }
+  }
+}
+
+void CFX_Edit::Refresh(REFRESH_PLAN_E ePlan,
+                       const CPVT_WordRange* pRange1,
+                       const CPVT_WordRange* pRange2) {
+  if (m_bEnableRefresh && m_pVT->IsValid()) {
+    m_Refresh.BeginRefresh();
+    RefreshPushLineRects(GetVisibleWordRange());
+
+    //      if (!FX_EDIT_IsFloatEqual(m_ptRefreshScrollPos.x,m_ptScrollPos.x) ||
+    //          !FX_EDIT_IsFloatEqual(m_ptRefreshScrollPos.y,m_ptScrollPos.y))
+    //      {
+    m_Refresh.NoAnalyse();
+    m_ptRefreshScrollPos = m_ptScrollPos;
+    //      }
+    //      else
+    //      {
+    //          switch (ePlan)
+    //          {
+    //          case RP_ANALYSE:
+    //              m_Refresh.Analyse(m_pVT->GetAlignment());
+    //
+    //              if (pRange1) RefreshPushRandomRects(*pRange1);
+    //              if (pRange2) RefreshPushRandomRects(*pRange2);
+    //              break;
+    //          case RP_NOANALYSE:
+    //              m_Refresh.NoAnalyse();
+    //              break;
+    //          case RP_OPTIONAL:
+    //              if (pRange1) RefreshPushRandomRects(*pRange1);
+    //              if (pRange2) RefreshPushRandomRects(*pRange2);
+    //              break;
+    //          }
+    //      }
+
+    if (m_bNotify && m_pNotify) {
+      if (!m_bNotifyFlag) {
+        m_bNotifyFlag = TRUE;
+        if (const CFX_Edit_RectArray* pRects = m_Refresh.GetRefreshRects()) {
+          for (int32_t i = 0, sz = pRects->GetSize(); i < sz; i++)
+            m_pNotify->IOnInvalidateRect(pRects->GetAt(i));
+        }
+        m_bNotifyFlag = FALSE;
+      }
+    }
+
+    m_Refresh.EndRefresh();
+  }
+}
+
+void CFX_Edit::RefreshPushLineRects(const CPVT_WordRange& wr) {
+  if (m_pVT->IsValid()) {
+    if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+      CPVT_WordPlace wpBegin = wr.BeginPos;
+      m_pVT->UpdateWordPlace(wpBegin);
+      CPVT_WordPlace wpEnd = wr.EndPos;
+      m_pVT->UpdateWordPlace(wpEnd);
+      pIterator->SetAt(wpBegin);
+
+      CPVT_Line lineinfo;
+      do {
+        if (!pIterator->GetLine(lineinfo))
+          break;
+        if (lineinfo.lineplace.LineCmp(wpEnd) > 0)
+          break;
+
+        CPDF_Rect rcLine(lineinfo.ptLine.x,
+                         lineinfo.ptLine.y + lineinfo.fLineDescent,
+                         lineinfo.ptLine.x + lineinfo.fLineWidth,
+                         lineinfo.ptLine.y + lineinfo.fLineAscent);
+
+        m_Refresh.Push(CPVT_WordRange(lineinfo.lineplace, lineinfo.lineEnd),
+                       VTToEdit(rcLine));
+
+      } while (pIterator->NextLine());
+    }
+  }
+}
+
+void CFX_Edit::RefreshPushRandomRects(const CPVT_WordRange& wr) {
+  if (m_pVT->IsValid()) {
+    if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+      CPVT_WordRange wrTemp = wr;
+
+      m_pVT->UpdateWordPlace(wrTemp.BeginPos);
+      m_pVT->UpdateWordPlace(wrTemp.EndPos);
+      pIterator->SetAt(wrTemp.BeginPos);
+
+      CPVT_Word wordinfo;
+      CPVT_Line lineinfo;
+      CPVT_WordPlace place;
+
+      while (pIterator->NextWord()) {
+        place = pIterator->GetAt();
+        if (place.WordCmp(wrTemp.EndPos) > 0)
+          break;
+
+        pIterator->GetWord(wordinfo);
+        pIterator->GetLine(lineinfo);
+
+        if (place.LineCmp(wrTemp.BeginPos) == 0 ||
+            place.LineCmp(wrTemp.EndPos) == 0) {
+          CPDF_Rect rcWord(wordinfo.ptWord.x,
+                           lineinfo.ptLine.y + lineinfo.fLineDescent,
+                           wordinfo.ptWord.x + wordinfo.fWidth,
+                           lineinfo.ptLine.y + lineinfo.fLineAscent);
+
+          m_Refresh.AddRefresh(VTToEdit(rcWord));
+        } else {
+          CPDF_Rect rcLine(lineinfo.ptLine.x,
+                           lineinfo.ptLine.y + lineinfo.fLineDescent,
+                           lineinfo.ptLine.x + lineinfo.fLineWidth,
+                           lineinfo.ptLine.y + lineinfo.fLineAscent);
+
+          m_Refresh.AddRefresh(VTToEdit(rcLine));
+
+          pIterator->NextLine();
+        }
+      }
+    }
+  }
+}
+
+void CFX_Edit::RefreshWordRange(const CPVT_WordRange& wr) {
+  if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+    CPVT_WordRange wrTemp = wr;
+
+    m_pVT->UpdateWordPlace(wrTemp.BeginPos);
+    m_pVT->UpdateWordPlace(wrTemp.EndPos);
+    pIterator->SetAt(wrTemp.BeginPos);
+
+    CPVT_Word wordinfo;
+    CPVT_Line lineinfo;
+    CPVT_WordPlace place;
+
+    while (pIterator->NextWord()) {
+      place = pIterator->GetAt();
+      if (place.WordCmp(wrTemp.EndPos) > 0)
+        break;
+
+      pIterator->GetWord(wordinfo);
+      pIterator->GetLine(lineinfo);
+
+      if (place.LineCmp(wrTemp.BeginPos) == 0 ||
+          place.LineCmp(wrTemp.EndPos) == 0) {
+        CPDF_Rect rcWord(wordinfo.ptWord.x,
+                         lineinfo.ptLine.y + lineinfo.fLineDescent,
+                         wordinfo.ptWord.x + wordinfo.fWidth,
+                         lineinfo.ptLine.y + lineinfo.fLineAscent);
+
+        if (m_bNotify && m_pNotify) {
+          if (!m_bNotifyFlag) {
+            m_bNotifyFlag = TRUE;
+            CPDF_Rect rcRefresh = VTToEdit(rcWord);
+            m_pNotify->IOnInvalidateRect(&rcRefresh);
+            m_bNotifyFlag = FALSE;
+          }
+        }
+      } else {
+        CPDF_Rect rcLine(lineinfo.ptLine.x,
+                         lineinfo.ptLine.y + lineinfo.fLineDescent,
+                         lineinfo.ptLine.x + lineinfo.fLineWidth,
+                         lineinfo.ptLine.y + lineinfo.fLineAscent);
+
+        if (m_bNotify && m_pNotify) {
+          if (!m_bNotifyFlag) {
+            m_bNotifyFlag = TRUE;
+            CPDF_Rect rcRefresh = VTToEdit(rcLine);
+            m_pNotify->IOnInvalidateRect(&rcRefresh);
+            m_bNotifyFlag = FALSE;
+          }
+        }
+
+        pIterator->NextLine();
+      }
+    }
+  }
+}
+
+void CFX_Edit::SetCaret(const CPVT_WordPlace& place) {
+  m_wpOldCaret = m_wpCaret;
+  m_wpCaret = place;
+}
+
+void CFX_Edit::SetCaretInfo() {
+  if (m_bNotify && m_pNotify) {
+    if (!m_bNotifyFlag) {
+      CPDF_Point ptHead(0.0f, 0.0f), ptFoot(0.0f, 0.0f);
+
+      if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+        pIterator->SetAt(m_wpCaret);
+        CPVT_Word word;
+        CPVT_Line line;
+        if (pIterator->GetWord(word)) {
+          ptHead.x = word.ptWord.x + word.fWidth;
+          ptHead.y = word.ptWord.y + word.fAscent;
+          ptFoot.x = word.ptWord.x + word.fWidth;
+          ptFoot.y = word.ptWord.y + word.fDescent;
+        } else if (pIterator->GetLine(line)) {
+          ptHead.x = line.ptLine.x;
+          ptHead.y = line.ptLine.y + line.fLineAscent;
+          ptFoot.x = line.ptLine.x;
+          ptFoot.y = line.ptLine.y + line.fLineDescent;
+        }
+      }
+
+      m_bNotifyFlag = TRUE;
+      m_pNotify->IOnSetCaret(!m_SelState.IsExist(), VTToEdit(ptHead),
+                             VTToEdit(ptFoot), m_wpCaret);
+      m_bNotifyFlag = FALSE;
+    }
+  }
+
+  SetCaretChange();
+}
+
+void CFX_Edit::SetCaretChange() {
+  if (m_wpCaret == m_wpOldCaret)
+    return;
+
+  if (m_bNotify && m_pVT->IsRichText() && m_pNotify) {
+    CPVT_SecProps SecProps;
+    CPVT_WordProps WordProps;
+
+    if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+      pIterator->SetAt(m_wpCaret);
+      CPVT_Word word;
+      CPVT_Section section;
+
+      if (pIterator->GetSection(section)) {
+        SecProps = section.SecProps;
+        WordProps = section.WordProps;
+      }
+
+      if (pIterator->GetWord(word)) {
+        WordProps = word.WordProps;
+      }
+    }
+
+    if (!m_bNotifyFlag) {
+      m_bNotifyFlag = TRUE;
+      m_pNotify->IOnCaretChange(SecProps, WordProps);
+      m_bNotifyFlag = FALSE;
+    }
+  }
+}
+
+void CFX_Edit::SetCaret(int32_t nPos) {
+  if (m_pVT->IsValid()) {
+    SelectNone();
+    SetCaret(m_pVT->WordIndexToWordPlace(nPos));
+    m_SelState.Set(m_wpCaret, m_wpCaret);
+
+    ScrollToCaret();
+    SetCaretOrigin();
+    SetCaretInfo();
+  }
+}
+
+void CFX_Edit::OnMouseDown(const CPDF_Point& point,
+                           FX_BOOL bShift,
+                           FX_BOOL bCtrl) {
+  if (m_pVT->IsValid()) {
+    SelectNone();
+    SetCaret(m_pVT->SearchWordPlace(EditToVT(point)));
+    m_SelState.Set(m_wpCaret, m_wpCaret);
+
+    ScrollToCaret();
+    SetCaretOrigin();
+    SetCaretInfo();
+  }
+}
+
+void CFX_Edit::OnMouseMove(const CPDF_Point& point,
+                           FX_BOOL bShift,
+                           FX_BOOL bCtrl) {
+  if (m_pVT->IsValid()) {
+    SetCaret(m_pVT->SearchWordPlace(EditToVT(point)));
+
+    if (m_wpCaret != m_wpOldCaret) {
+      m_SelState.SetEndPos(m_wpCaret);
+
+      ScrollToCaret();
+      CPVT_WordRange wr(m_wpOldCaret, m_wpCaret);
+      Refresh(RP_OPTIONAL, &wr);
+      SetCaretOrigin();
+      SetCaretInfo();
+    }
+  }
+}
+
+void CFX_Edit::OnVK_UP(FX_BOOL bShift, FX_BOOL bCtrl) {
+  if (m_pVT->IsValid()) {
+    SetCaret(m_pVT->GetUpWordPlace(m_wpCaret, m_ptCaret));
+
+    if (bShift) {
+      if (m_SelState.IsExist())
+        m_SelState.SetEndPos(m_wpCaret);
+      else
+        m_SelState.Set(m_wpOldCaret, m_wpCaret);
+
+      if (m_wpOldCaret != m_wpCaret) {
+        ScrollToCaret();
+        CPVT_WordRange wr(m_wpOldCaret, m_wpCaret);
+        Refresh(RP_OPTIONAL, &wr);
+        SetCaretInfo();
+      }
+    } else {
+      SelectNone();
+
+      ScrollToCaret();
+      SetCaretInfo();
+    }
+  }
+}
+
+void CFX_Edit::OnVK_DOWN(FX_BOOL bShift, FX_BOOL bCtrl) {
+  if (m_pVT->IsValid()) {
+    SetCaret(m_pVT->GetDownWordPlace(m_wpCaret, m_ptCaret));
+
+    if (bShift) {
+      if (m_SelState.IsExist())
+        m_SelState.SetEndPos(m_wpCaret);
+      else
+        m_SelState.Set(m_wpOldCaret, m_wpCaret);
+
+      if (m_wpOldCaret != m_wpCaret) {
+        ScrollToCaret();
+        CPVT_WordRange wr(m_wpOldCaret, m_wpCaret);
+        Refresh(RP_OPTIONAL, &wr);
+        SetCaretInfo();
+      }
+    } else {
+      SelectNone();
+
+      ScrollToCaret();
+      SetCaretInfo();
+    }
+  }
+}
+
+void CFX_Edit::OnVK_LEFT(FX_BOOL bShift, FX_BOOL bCtrl) {
+  if (m_pVT->IsValid()) {
+    if (bShift) {
+      if (m_wpCaret == m_pVT->GetLineBeginPlace(m_wpCaret) &&
+          m_wpCaret != m_pVT->GetSectionBeginPlace(m_wpCaret))
+        SetCaret(m_pVT->GetPrevWordPlace(m_wpCaret));
+
+      SetCaret(m_pVT->GetPrevWordPlace(m_wpCaret));
+
+      if (m_SelState.IsExist())
+        m_SelState.SetEndPos(m_wpCaret);
+      else
+        m_SelState.Set(m_wpOldCaret, m_wpCaret);
+
+      if (m_wpOldCaret != m_wpCaret) {
+        ScrollToCaret();
+        CPVT_WordRange wr(m_wpOldCaret, m_wpCaret);
+        Refresh(RP_OPTIONAL, &wr);
+        SetCaretInfo();
+      }
+    } else {
+      if (m_SelState.IsExist()) {
+        if (m_SelState.BeginPos.WordCmp(m_SelState.EndPos) < 0)
+          SetCaret(m_SelState.BeginPos);
+        else
+          SetCaret(m_SelState.EndPos);
+
+        SelectNone();
+        ScrollToCaret();
+        SetCaretInfo();
+      } else {
+        if (m_wpCaret == m_pVT->GetLineBeginPlace(m_wpCaret) &&
+            m_wpCaret != m_pVT->GetSectionBeginPlace(m_wpCaret))
+          SetCaret(m_pVT->GetPrevWordPlace(m_wpCaret));
+
+        SetCaret(m_pVT->GetPrevWordPlace(m_wpCaret));
+
+        ScrollToCaret();
+        SetCaretOrigin();
+        SetCaretInfo();
+      }
+    }
+  }
+}
+
+void CFX_Edit::OnVK_RIGHT(FX_BOOL bShift, FX_BOOL bCtrl) {
+  if (m_pVT->IsValid()) {
+    if (bShift) {
+      SetCaret(m_pVT->GetNextWordPlace(m_wpCaret));
+
+      if (m_wpCaret == m_pVT->GetLineEndPlace(m_wpCaret) &&
+          m_wpCaret != m_pVT->GetSectionEndPlace(m_wpCaret))
+        SetCaret(m_pVT->GetNextWordPlace(m_wpCaret));
+
+      if (m_SelState.IsExist())
+        m_SelState.SetEndPos(m_wpCaret);
+      else
+        m_SelState.Set(m_wpOldCaret, m_wpCaret);
+
+      if (m_wpOldCaret != m_wpCaret) {
+        ScrollToCaret();
+        CPVT_WordRange wr(m_wpOldCaret, m_wpCaret);
+        Refresh(RP_OPTIONAL, &wr);
+        SetCaretInfo();
+      }
+    } else {
+      if (m_SelState.IsExist()) {
+        if (m_SelState.BeginPos.WordCmp(m_SelState.EndPos) > 0)
+          SetCaret(m_SelState.BeginPos);
+        else
+          SetCaret(m_SelState.EndPos);
+
+        SelectNone();
+        ScrollToCaret();
+        SetCaretInfo();
+      } else {
+        SetCaret(m_pVT->GetNextWordPlace(m_wpCaret));
+
+        if (m_wpCaret == m_pVT->GetLineEndPlace(m_wpCaret) &&
+            m_wpCaret != m_pVT->GetSectionEndPlace(m_wpCaret))
+          SetCaret(m_pVT->GetNextWordPlace(m_wpCaret));
+
+        ScrollToCaret();
+        SetCaretOrigin();
+        SetCaretInfo();
+      }
+    }
+  }
+}
+
+void CFX_Edit::OnVK_HOME(FX_BOOL bShift, FX_BOOL bCtrl) {
+  if (m_pVT->IsValid()) {
+    if (bShift) {
+      if (bCtrl)
+        SetCaret(m_pVT->GetBeginWordPlace());
+      else
+        SetCaret(m_pVT->GetLineBeginPlace(m_wpCaret));
+
+      if (m_SelState.IsExist())
+        m_SelState.SetEndPos(m_wpCaret);
+      else
+        m_SelState.Set(m_wpOldCaret, m_wpCaret);
+
+      ScrollToCaret();
+      CPVT_WordRange wr(m_wpOldCaret, m_wpCaret);
+      Refresh(RP_OPTIONAL, &wr);
+      SetCaretInfo();
+    } else {
+      if (m_SelState.IsExist()) {
+        if (m_SelState.BeginPos.WordCmp(m_SelState.EndPos) < 0)
+          SetCaret(m_SelState.BeginPos);
+        else
+          SetCaret(m_SelState.EndPos);
+
+        SelectNone();
+        ScrollToCaret();
+        SetCaretInfo();
+      } else {
+        if (bCtrl)
+          SetCaret(m_pVT->GetBeginWordPlace());
+        else
+          SetCaret(m_pVT->GetLineBeginPlace(m_wpCaret));
+
+        ScrollToCaret();
+        SetCaretOrigin();
+        SetCaretInfo();
+      }
+    }
+  }
+}
+
+void CFX_Edit::OnVK_END(FX_BOOL bShift, FX_BOOL bCtrl) {
+  if (m_pVT->IsValid()) {
+    if (bShift) {
+      if (bCtrl)
+        SetCaret(m_pVT->GetEndWordPlace());
+      else
+        SetCaret(m_pVT->GetLineEndPlace(m_wpCaret));
+
+      if (m_SelState.IsExist())
+        m_SelState.SetEndPos(m_wpCaret);
+      else
+        m_SelState.Set(m_wpOldCaret, m_wpCaret);
+
+      ScrollToCaret();
+      CPVT_WordRange wr(m_wpOldCaret, m_wpCaret);
+      Refresh(RP_OPTIONAL, &wr);
+      SetCaretInfo();
+    } else {
+      if (m_SelState.IsExist()) {
+        if (m_SelState.BeginPos.WordCmp(m_SelState.EndPos) > 0)
+          SetCaret(m_SelState.BeginPos);
+        else
+          SetCaret(m_SelState.EndPos);
+
+        SelectNone();
+        ScrollToCaret();
+        SetCaretInfo();
+      } else {
+        if (bCtrl)
+          SetCaret(m_pVT->GetEndWordPlace());
+        else
+          SetCaret(m_pVT->GetLineEndPlace(m_wpCaret));
+
+        ScrollToCaret();
+        SetCaretOrigin();
+        SetCaretInfo();
+      }
+    }
+  }
+}
+
+void CFX_Edit::SetText(const FX_WCHAR* text,
+                       int32_t charset,
+                       const CPVT_SecProps* pSecProps,
+                       const CPVT_WordProps* pWordProps,
+                       FX_BOOL bAddUndo,
+                       FX_BOOL bPaint) {
+  Empty();
+  DoInsertText(CPVT_WordPlace(0, 0, -1), text, charset, pSecProps, pWordProps);
+  if (bPaint)
+    Paint();
+  if (m_bOprNotify && m_pOprNotify)
+    m_pOprNotify->OnSetText(m_wpCaret, m_wpOldCaret);
+  // if (bAddUndo)
+}
+
+FX_BOOL CFX_Edit::InsertWord(FX_WORD word,
+                             int32_t charset,
+                             const CPVT_WordProps* pWordProps,
+                             FX_BOOL bAddUndo,
+                             FX_BOOL bPaint) {
+  if (IsTextOverflow())
+    return FALSE;
+
+  if (m_pVT->IsValid()) {
+    m_pVT->UpdateWordPlace(m_wpCaret);
+
+    SetCaret(m_pVT->InsertWord(
+        m_wpCaret, word, GetCharSetFromUnicode(word, charset), pWordProps));
+    m_SelState.Set(m_wpCaret, m_wpCaret);
+
+    if (m_wpCaret != m_wpOldCaret) {
+      if (bAddUndo && m_bEnableUndo) {
+        AddEditUndoItem(new CFXEU_InsertWord(this, m_wpOldCaret, m_wpCaret,
+                                             word, charset, pWordProps));
+      }
+
+      if (bPaint)
+        PaintInsertText(m_wpOldCaret, m_wpCaret);
+
+      if (m_bOprNotify && m_pOprNotify)
+        m_pOprNotify->OnInsertWord(m_wpCaret, m_wpOldCaret);
+
+      return TRUE;
+    }
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFX_Edit::InsertReturn(const CPVT_SecProps* pSecProps,
+                               const CPVT_WordProps* pWordProps,
+                               FX_BOOL bAddUndo,
+                               FX_BOOL bPaint) {
+  if (IsTextOverflow())
+    return FALSE;
+
+  if (m_pVT->IsValid()) {
+    m_pVT->UpdateWordPlace(m_wpCaret);
+    SetCaret(m_pVT->InsertSection(m_wpCaret, pSecProps, pWordProps));
+    m_SelState.Set(m_wpCaret, m_wpCaret);
+
+    if (m_wpCaret != m_wpOldCaret) {
+      if (bAddUndo && m_bEnableUndo) {
+        AddEditUndoItem(new CFXEU_InsertReturn(this, m_wpOldCaret, m_wpCaret,
+                                               pSecProps, pWordProps));
+      }
+
+      if (bPaint) {
+        RearrangePart(CPVT_WordRange(m_wpOldCaret, m_wpCaret));
+        ScrollToCaret();
+        CPVT_WordRange wr(m_wpOldCaret, GetVisibleWordRange().EndPos);
+        Refresh(RP_ANALYSE, &wr);
+        SetCaretOrigin();
+        SetCaretInfo();
+      }
+
+      if (m_bOprNotify && m_pOprNotify)
+        m_pOprNotify->OnInsertReturn(m_wpCaret, m_wpOldCaret);
+
+      return TRUE;
+    }
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFX_Edit::Backspace(FX_BOOL bAddUndo, FX_BOOL bPaint) {
+  if (m_pVT->IsValid()) {
+    if (m_wpCaret == m_pVT->GetBeginWordPlace())
+      return FALSE;
+
+    CPVT_Section section;
+    CPVT_Word word;
+
+    if (bAddUndo) {
+      if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+        pIterator->SetAt(m_wpCaret);
+        pIterator->GetSection(section);
+        pIterator->GetWord(word);
+      }
+    }
+
+    m_pVT->UpdateWordPlace(m_wpCaret);
+    SetCaret(m_pVT->BackSpaceWord(m_wpCaret));
+    m_SelState.Set(m_wpCaret, m_wpCaret);
+
+    if (m_wpCaret != m_wpOldCaret) {
+      if (bAddUndo && m_bEnableUndo) {
+        if (m_wpCaret.SecCmp(m_wpOldCaret) != 0)
+          AddEditUndoItem(new CFXEU_Backspace(
+              this, m_wpOldCaret, m_wpCaret, word.Word, word.nCharset,
+              section.SecProps, section.WordProps));
+        else
+          AddEditUndoItem(new CFXEU_Backspace(
+              this, m_wpOldCaret, m_wpCaret, word.Word, word.nCharset,
+              section.SecProps, word.WordProps));
+      }
+
+      if (bPaint) {
+        RearrangePart(CPVT_WordRange(m_wpCaret, m_wpOldCaret));
+        ScrollToCaret();
+
+        CPVT_WordRange wr;
+        if (m_wpCaret.SecCmp(m_wpOldCaret) != 0)
+          wr = CPVT_WordRange(m_pVT->GetPrevWordPlace(m_wpCaret),
+                              GetVisibleWordRange().EndPos);
+        else if (m_wpCaret.LineCmp(m_wpOldCaret) != 0)
+          wr = CPVT_WordRange(m_pVT->GetLineBeginPlace(m_wpCaret),
+                              m_pVT->GetSectionEndPlace(m_wpCaret));
+        else
+          wr = CPVT_WordRange(m_pVT->GetPrevWordPlace(m_wpCaret),
+                              m_pVT->GetSectionEndPlace(m_wpCaret));
+
+        Refresh(RP_ANALYSE, &wr);
+
+        SetCaretOrigin();
+        SetCaretInfo();
+      }
+
+      if (m_bOprNotify && m_pOprNotify)
+        m_pOprNotify->OnBackSpace(m_wpCaret, m_wpOldCaret);
+
+      return TRUE;
+    }
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFX_Edit::Delete(FX_BOOL bAddUndo, FX_BOOL bPaint) {
+  if (m_pVT->IsValid()) {
+    if (m_wpCaret == m_pVT->GetEndWordPlace())
+      return FALSE;
+
+    CPVT_Section section;
+    CPVT_Word word;
+
+    if (bAddUndo) {
+      if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+        pIterator->SetAt(m_pVT->GetNextWordPlace(m_wpCaret));
+        pIterator->GetSection(section);
+        pIterator->GetWord(word);
+      }
+    }
+
+    m_pVT->UpdateWordPlace(m_wpCaret);
+    FX_BOOL bSecEnd = (m_wpCaret == m_pVT->GetSectionEndPlace(m_wpCaret));
+
+    SetCaret(m_pVT->DeleteWord(m_wpCaret));
+    m_SelState.Set(m_wpCaret, m_wpCaret);
+
+    if (bAddUndo && m_bEnableUndo) {
+      if (bSecEnd)
+        AddEditUndoItem(new CFXEU_Delete(
+            this, m_wpOldCaret, m_wpCaret, word.Word, word.nCharset,
+            section.SecProps, section.WordProps, bSecEnd));
+      else
+        AddEditUndoItem(new CFXEU_Delete(
+            this, m_wpOldCaret, m_wpCaret, word.Word, word.nCharset,
+            section.SecProps, word.WordProps, bSecEnd));
+    }
+
+    if (bPaint) {
+      RearrangePart(CPVT_WordRange(m_wpOldCaret, m_wpCaret));
+      ScrollToCaret();
+
+      CPVT_WordRange wr;
+      if (bSecEnd)
+        wr = CPVT_WordRange(m_pVT->GetPrevWordPlace(m_wpOldCaret),
+                            GetVisibleWordRange().EndPos);
+      else if (m_wpCaret.LineCmp(m_wpOldCaret) != 0)
+        wr = CPVT_WordRange(m_pVT->GetLineBeginPlace(m_wpCaret),
+                            m_pVT->GetSectionEndPlace(m_wpCaret));
+      else
+        wr = CPVT_WordRange(m_pVT->GetPrevWordPlace(m_wpOldCaret),
+                            m_pVT->GetSectionEndPlace(m_wpCaret));
+
+      Refresh(RP_ANALYSE, &wr);
+
+      SetCaretOrigin();
+      SetCaretInfo();
+    }
+
+    if (m_bOprNotify && m_pOprNotify)
+      m_pOprNotify->OnDelete(m_wpCaret, m_wpOldCaret);
+
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFX_Edit::Empty() {
+  if (m_pVT->IsValid()) {
+    m_pVT->DeleteWords(GetWholeWordRange());
+    SetCaret(m_pVT->GetBeginWordPlace());
+
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFX_Edit::Clear(FX_BOOL bAddUndo, FX_BOOL bPaint) {
+  if (m_pVT->IsValid()) {
+    if (m_SelState.IsExist()) {
+      CPVT_WordRange range = m_SelState.ConvertToWordRange();
+
+      if (bAddUndo && m_bEnableUndo) {
+        if (m_pVT->IsRichText()) {
+          BeginGroupUndo(L"");
+
+          if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+            pIterator->SetAt(range.EndPos);
+
+            CPVT_Word wordinfo;
+            CPVT_Section secinfo;
+            do {
+              CPVT_WordPlace place = pIterator->GetAt();
+              if (place.WordCmp(range.BeginPos) <= 0)
+                break;
+
+              CPVT_WordPlace oldplace = m_pVT->GetPrevWordPlace(place);
+
+              if (oldplace.SecCmp(place) != 0) {
+                if (pIterator->GetSection(secinfo)) {
+                  AddEditUndoItem(new CFXEU_ClearRich(
+                      this, oldplace, place, range, wordinfo.Word,
+                      wordinfo.nCharset, secinfo.SecProps, secinfo.WordProps));
+                }
+              } else {
+                if (pIterator->GetWord(wordinfo)) {
+                  oldplace = m_pVT->AdjustLineHeader(oldplace, TRUE);
+                  place = m_pVT->AdjustLineHeader(place, TRUE);
+
+                  AddEditUndoItem(new CFXEU_ClearRich(
+                      this, oldplace, place, range, wordinfo.Word,
+                      wordinfo.nCharset, secinfo.SecProps, wordinfo.WordProps));
+                }
+              }
+            } while (pIterator->PrevWord());
+          }
+          EndGroupUndo();
+        } else {
+          AddEditUndoItem(new CFXEU_Clear(this, range, GetSelText()));
+        }
+      }
+
+      SelectNone();
+      SetCaret(m_pVT->DeleteWords(range));
+      m_SelState.Set(m_wpCaret, m_wpCaret);
+
+      if (bPaint) {
+        RearrangePart(range);
+        ScrollToCaret();
+
+        CPVT_WordRange wr(m_wpOldCaret, GetVisibleWordRange().EndPos);
+        Refresh(RP_ANALYSE, &wr);
+
+        SetCaretOrigin();
+        SetCaretInfo();
+      }
+
+      if (m_bOprNotify && m_pOprNotify)
+        m_pOprNotify->OnClear(m_wpCaret, m_wpOldCaret);
+
+      return TRUE;
+    }
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CFX_Edit::InsertText(const FX_WCHAR* text,
+                             int32_t charset,
+                             const CPVT_SecProps* pSecProps,
+                             const CPVT_WordProps* pWordProps,
+                             FX_BOOL bAddUndo,
+                             FX_BOOL bPaint) {
+  if (IsTextOverflow())
+    return FALSE;
+
+  m_pVT->UpdateWordPlace(m_wpCaret);
+  SetCaret(DoInsertText(m_wpCaret, text, charset, pSecProps, pWordProps));
+  m_SelState.Set(m_wpCaret, m_wpCaret);
+
+  if (m_wpCaret != m_wpOldCaret) {
+    if (bAddUndo && m_bEnableUndo) {
+      AddEditUndoItem(new CFXEU_InsertText(this, m_wpOldCaret, m_wpCaret, text,
+                                           charset, pSecProps, pWordProps));
+    }
+
+    if (bPaint)
+      PaintInsertText(m_wpOldCaret, m_wpCaret);
+
+    if (m_bOprNotify && m_pOprNotify)
+      m_pOprNotify->OnInsertText(m_wpCaret, m_wpOldCaret);
+
+    return TRUE;
+  }
+  return FALSE;
+}
+
+void CFX_Edit::PaintInsertText(const CPVT_WordPlace& wpOld,
+                               const CPVT_WordPlace& wpNew) {
+  if (m_pVT->IsValid()) {
+    RearrangePart(CPVT_WordRange(wpOld, wpNew));
+    ScrollToCaret();
+
+    CPVT_WordRange wr;
+    if (m_wpCaret.LineCmp(wpOld) != 0)
+      wr = CPVT_WordRange(m_pVT->GetLineBeginPlace(wpOld),
+                          m_pVT->GetSectionEndPlace(wpNew));
+    else
+      wr = CPVT_WordRange(wpOld, m_pVT->GetSectionEndPlace(wpNew));
+    Refresh(RP_ANALYSE, &wr);
+    SetCaretOrigin();
+    SetCaretInfo();
+  }
 }
 
-// inner methods
+FX_BOOL CFX_Edit::Redo() {
+  if (m_bEnableUndo) {
+    if (m_Undo.CanRedo()) {
+      m_Undo.Redo();
+      return TRUE;
+    }
+  }
 
-CPVT_WordRange CFX_Edit::GetWholeWordRange() const
-{
-       if (m_pVT->IsValid())
-               return CPVT_WordRange(m_pVT->GetBeginWordPlace(),m_pVT->GetEndWordPlace());
-
-       return CPVT_WordRange();
-}
-
-CPVT_WordRange CFX_Edit::GetVisibleWordRange() const
-{
-       if (m_bEnableOverflow) return GetWholeWordRange();
-
-       if (m_pVT->IsValid())
-       {
-               CPDF_Rect rcPlate = m_pVT->GetPlateRect();
-
-               CPVT_WordPlace place1 = m_pVT->SearchWordPlace(EditToVT(CPDF_Point(rcPlate.left,rcPlate.top)));
-               CPVT_WordPlace place2 = m_pVT->SearchWordPlace(EditToVT(CPDF_Point(rcPlate.right,rcPlate.bottom)));
-
-               return CPVT_WordRange(place1,place2);
-       }
-
-       return CPVT_WordRange();
-}
-
-CPVT_WordPlace CFX_Edit::SearchWordPlace(const CPDF_Point& point) const
-{
-       if (m_pVT->IsValid())
-       {
-               return m_pVT->SearchWordPlace(EditToVT(point));
-       }
-
-       return CPVT_WordPlace();
-}
-
-void CFX_Edit::Paint()
-{
-       if (m_pVT->IsValid())
-       {
-               RearrangeAll();
-               ScrollToCaret();
-               Refresh(RP_NOANALYSE);
-               SetCaretOrigin();
-               SetCaretInfo();
-       }
-}
-
-void CFX_Edit::RearrangeAll()
-{
-       if (m_pVT->IsValid())
-       {
-               m_pVT->UpdateWordPlace(m_wpCaret);
-               m_pVT->RearrangeAll();
-               m_pVT->UpdateWordPlace(m_wpCaret);
-               SetScrollInfo();
-               SetContentChanged();
-       }
-}
-
-void CFX_Edit::RearrangePart(const CPVT_WordRange & range)
-{
-       if (m_pVT->IsValid())
-       {
-               m_pVT->UpdateWordPlace(m_wpCaret);
-               m_pVT->RearrangePart(range);
-               m_pVT->UpdateWordPlace(m_wpCaret);
-               SetScrollInfo();
-               SetContentChanged();
-       }
-}
-
-void CFX_Edit::SetContentChanged()
-{
-       if (m_bNotify && m_pNotify)
-       {
-               CPDF_Rect rcContent = m_pVT->GetContentRect();
-               if (rcContent.Width() != m_rcOldContent.Width() ||
-                       rcContent.Height() != m_rcOldContent.Height())
-               {
-                       if (!m_bNotifyFlag)
-                       {
-                               m_bNotifyFlag = TRUE;
-                               m_pNotify->IOnContentChange(rcContent);
-                               m_bNotifyFlag = FALSE;
-                       }
-                       m_rcOldContent = rcContent;
-               }
-       }
-}
-
-void CFX_Edit::SelectAll()
-{
-       if (m_pVT->IsValid())
-       {
-               m_SelState = GetWholeWordRange();               
-               SetCaret(m_SelState.EndPos);            
-               
-               ScrollToCaret();
-               CPVT_WordRange wrVisible = GetVisibleWordRange();
-               Refresh(RP_OPTIONAL,&wrVisible);
-               SetCaretInfo();
-       }
-}
-
-void CFX_Edit::SelectNone()
-{
-       if (m_pVT->IsValid())
-       {
-               if (m_SelState.IsExist())
-               {
-                       CPVT_WordRange wrTemp = m_SelState.ConvertToWordRange();
-                       m_SelState.Default();
-                       Refresh(RP_OPTIONAL,&wrTemp);
-               }
-       }       
-}
-
-FX_BOOL        CFX_Edit::IsSelected() const
-{
-       return m_SelState.IsExist();
-}
-
-CPDF_Point CFX_Edit::VTToEdit(const CPDF_Point & point) const
-{
-       CPDF_Rect rcContent = m_pVT->GetContentRect();
-       CPDF_Rect rcPlate = m_pVT->GetPlateRect();
-
-       FX_FLOAT fPadding = 0.0f;
-
-       switch (m_nAlignment)
-       {
-       case 0:
-               fPadding = 0.0f;
-               break;
-       case 1:
-               fPadding = (rcPlate.Height() - rcContent.Height()) * 0.5f;
-               break;
-       case 2:
-               fPadding = rcPlate.Height() - rcContent.Height();
-               break;
-       }
-       
-       return CPDF_Point(point.x - (m_ptScrollPos.x - rcPlate.left),
-               point.y - (m_ptScrollPos.y + fPadding - rcPlate.top));
-}
-
-CPDF_Point CFX_Edit::EditToVT(const CPDF_Point & point) const
-{
-       CPDF_Rect rcContent = m_pVT->GetContentRect();
-       CPDF_Rect rcPlate = m_pVT->GetPlateRect();
-
-       FX_FLOAT fPadding = 0.0f;
-
-       switch (m_nAlignment)
-       {
-       case 0:
-               fPadding = 0.0f;
-               break;
-       case 1:
-               fPadding = (rcPlate.Height() - rcContent.Height()) * 0.5f;
-               break;
-       case 2:
-               fPadding = rcPlate.Height() - rcContent.Height();
-               break;
-       }
-
-       return CPDF_Point(point.x + (m_ptScrollPos.x - rcPlate.left),
-               point.y + (m_ptScrollPos.y + fPadding - rcPlate.top));
-}
-
-CPDF_Rect CFX_Edit::VTToEdit(const CPDF_Rect & rect) const
-{
-       CPDF_Point ptLeftBottom = VTToEdit(CPDF_Point(rect.left,rect.bottom));
-       CPDF_Point ptRightTop = VTToEdit(CPDF_Point(rect.right,rect.top));
-
-       return CPDF_Rect(ptLeftBottom.x,ptLeftBottom.y,ptRightTop.x,ptRightTop.y);
-}
-
-CPDF_Rect CFX_Edit::EditToVT(const CPDF_Rect & rect) const
-{
-       CPDF_Point ptLeftBottom = EditToVT(CPDF_Point(rect.left,rect.bottom));
-       CPDF_Point ptRightTop = EditToVT(CPDF_Point(rect.right,rect.top));
-
-       return CPDF_Rect(ptLeftBottom.x,ptLeftBottom.y,ptRightTop.x,ptRightTop.y);
-}
-
-void CFX_Edit::SetScrollInfo()
-{
-       if (m_bNotify && m_pNotify)
-       {
-               CPDF_Rect rcPlate = m_pVT->GetPlateRect();
-               CPDF_Rect rcContent = m_pVT->GetContentRect();
-
-               if (!m_bNotifyFlag)
-               {
-                       m_bNotifyFlag = TRUE;
-                       m_pNotify->IOnSetScrollInfoX(rcPlate.left, rcPlate.right, 
-                                                               rcContent.left, rcContent.right, rcPlate.Width() / 3, rcPlate.Width());
-                       
-                       m_pNotify->IOnSetScrollInfoY(rcPlate.bottom, rcPlate.top, 
-                                       rcContent.bottom, rcContent.top, rcPlate.Height() / 3, rcPlate.Height());
-                       m_bNotifyFlag = FALSE;
-               }
-       }
-}
-
-void CFX_Edit::SetScrollPosX(FX_FLOAT fx)
-{
-       if (!m_bEnableScroll) return;
-
-       if (m_pVT->IsValid())
-       {
-               if (!FX_EDIT_IsFloatEqual(m_ptScrollPos.x,fx))
-               {
-                       m_ptScrollPos.x = fx;                   
-                       Refresh(RP_NOANALYSE);
-
-                       if (m_bNotify && m_pNotify)
-                       {
-                               if (!m_bNotifyFlag)
-                               {
-                                       m_bNotifyFlag = TRUE;
-                                       m_pNotify->IOnSetScrollPosX(fx);
-                                       m_bNotifyFlag = FALSE;
-                               }
-                       }
-               }
-       }
-}
-
-void CFX_Edit::SetScrollPosY(FX_FLOAT fy)
-{
-       if (!m_bEnableScroll) return;
-
-       if (m_pVT->IsValid())
-       {
-               if (!FX_EDIT_IsFloatEqual(m_ptScrollPos.y,fy))
-               {                               
-                       m_ptScrollPos.y = fy;
-                       Refresh(RP_NOANALYSE);
-
-                       if (m_bNotify && m_pNotify)
-                       {
-                               if (!m_bNotifyFlag)
-                               {
-                                       m_bNotifyFlag = TRUE;
-                                       m_pNotify->IOnSetScrollPosY(fy);
-                                       m_bNotifyFlag = FALSE;
-                               }
-                       }
-               }
-       }
-}
-
-void CFX_Edit::SetScrollPos(const CPDF_Point & point)
-{
-       SetScrollPosX(point.x);
-       SetScrollPosY(point.y);
-       SetScrollLimit();
-       SetCaretInfo();
-}
-
-CPDF_Point CFX_Edit::GetScrollPos() const
-{
-       return m_ptScrollPos;
-}
-
-void CFX_Edit::SetScrollLimit()
-{
-       if (m_pVT->IsValid())
-       {
-               CPDF_Rect rcContent = m_pVT->GetContentRect();
-               CPDF_Rect rcPlate = m_pVT->GetPlateRect();
-
-               if (rcPlate.Width() > rcContent.Width())
-               {
-                       SetScrollPosX(rcPlate.left);
-               }
-               else
-               {
-                       if (FX_EDIT_IsFloatSmaller(m_ptScrollPos.x, rcContent.left))
-                       {
-                               SetScrollPosX(rcContent.left);                  
-                       }
-                       else if (FX_EDIT_IsFloatBigger(m_ptScrollPos.x, rcContent.right - rcPlate.Width()))
-                       {
-                               SetScrollPosX(rcContent.right - rcPlate.Width());
-                       }
-               }
-
-               if (rcPlate.Height() > rcContent.Height())
-               {
-                       SetScrollPosY(rcPlate.top);
-               }
-               else            
-               {
-                       if (FX_EDIT_IsFloatSmaller(m_ptScrollPos.y, rcContent.bottom + rcPlate.Height()))
-                       {
-                               SetScrollPosY(rcContent.bottom + rcPlate.Height());
-                       }
-                       else if (FX_EDIT_IsFloatBigger(m_ptScrollPos.y, rcContent.top))
-                       {
-                               SetScrollPosY(rcContent.top);
-                       }
-               }
-       }
-}
-
-void CFX_Edit::ScrollToCaret()
-{
-       SetScrollLimit();
-
-       if (m_pVT->IsValid())
-       {
-               CPDF_Point ptHead(0,0);
-               CPDF_Point ptFoot(0,0);
-
-               if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-               {
-                       pIterator->SetAt(m_wpCaret);
-
-                       CPVT_Word word;
-                       CPVT_Line line;
-                       if (pIterator->GetWord(word))
-                       {
-                               ptHead.x = word.ptWord.x + word.fWidth;
-                               ptHead.y = word.ptWord.y + word.fAscent;
-                               ptFoot.x = word.ptWord.x + word.fWidth;
-                               ptFoot.y = word.ptWord.y + word.fDescent;
-                       }
-                       else if (pIterator->GetLine(line))
-                       {                               
-                               ptHead.x = line.ptLine.x;
-                               ptHead.y = line.ptLine.y + line.fLineAscent;
-                               ptFoot.x = line.ptLine.x;
-                               ptFoot.y = line.ptLine.y + line.fLineDescent;
-                       }
-               }
-
-               CPDF_Point ptHeadEdit = VTToEdit(ptHead);
-               CPDF_Point ptFootEdit = VTToEdit(ptFoot);
-
-               CPDF_Rect rcPlate = m_pVT->GetPlateRect();
-
-               if (!FX_EDIT_IsFloatEqual(rcPlate.left,rcPlate.right))
-               {
-                       if (FX_EDIT_IsFloatSmaller(ptHeadEdit.x, rcPlate.left) ||
-                               FX_EDIT_IsFloatEqual(ptHeadEdit.x, rcPlate.left))
-                       {
-                               SetScrollPosX(ptHead.x);
-                       }
-                       else if (FX_EDIT_IsFloatBigger(ptHeadEdit.x, rcPlate.right))
-                       {
-                               SetScrollPosX(ptHead.x - rcPlate.Width());
-                       }
-               }
-
-               if (!FX_EDIT_IsFloatEqual(rcPlate.top,rcPlate.bottom))
-               {
-                       if (FX_EDIT_IsFloatSmaller(ptFootEdit.y, rcPlate.bottom) ||
-                               FX_EDIT_IsFloatEqual(ptFootEdit.y, rcPlate.bottom))
-                       {
-                               if (FX_EDIT_IsFloatSmaller(ptHeadEdit.y, rcPlate.top))
-                               {
-                                       SetScrollPosY(ptFoot.y + rcPlate.Height());
-                               }
-                       }
-                       else if (FX_EDIT_IsFloatBigger(ptHeadEdit.y, rcPlate.top))
-                       {
-                               if (FX_EDIT_IsFloatBigger(ptFootEdit.y, rcPlate.bottom))
-                               {
-                                       SetScrollPosY(ptHead.y);
-                               }
-                       }
-               }
-       }
-}
-
-void CFX_Edit::Refresh(REFRESH_PLAN_E ePlan,const CPVT_WordRange * pRange1,const CPVT_WordRange * pRange2)
-{
-       if (m_bEnableRefresh && m_pVT->IsValid())
-       {
-               m_Refresh.BeginRefresh();
-               RefreshPushLineRects(GetVisibleWordRange());
-
-//             if (!FX_EDIT_IsFloatEqual(m_ptRefreshScrollPos.x,m_ptScrollPos.x) || 
-//                     !FX_EDIT_IsFloatEqual(m_ptRefreshScrollPos.y,m_ptScrollPos.y))
-//             {
-                       m_Refresh.NoAnalyse();
-                       m_ptRefreshScrollPos = m_ptScrollPos;
-//             }
-//             else
-//             {
-//                     switch (ePlan)
-//                     {
-//                     case RP_ANALYSE:
-//                             m_Refresh.Analyse(m_pVT->GetAlignment());
-// 
-//                             if (pRange1) RefreshPushRandomRects(*pRange1);
-//                             if (pRange2) RefreshPushRandomRects(*pRange2);
-//                             break;
-//                     case RP_NOANALYSE:
-//                             m_Refresh.NoAnalyse();
-//                             break;
-//                     case RP_OPTIONAL:
-//                             if (pRange1) RefreshPushRandomRects(*pRange1);
-//                             if (pRange2) RefreshPushRandomRects(*pRange2);
-//                             break;  
-//                     }
-//             }               
-
-               if (m_bNotify && m_pNotify)
-               {
-                       if (!m_bNotifyFlag)
-                       {
-                               m_bNotifyFlag = TRUE;
-                               if (const CFX_Edit_RectArray * pRects = m_Refresh.GetRefreshRects())
-                               {
-                                       for (FX_INT32 i = 0, sz = pRects->GetSize(); i < sz; i++)
-                                               m_pNotify->IOnInvalidateRect(pRects->GetAt(i));
-                               }
-                               m_bNotifyFlag = FALSE;
-                       }
-               }
-
-               m_Refresh.EndRefresh();
-       }
-}
-
-void CFX_Edit::RefreshPushLineRects(const CPVT_WordRange & wr)
-{
-       if (m_pVT->IsValid())
-       {
-               if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-               {
-                       CPVT_WordPlace wpBegin = wr.BeginPos;
-                       m_pVT->UpdateWordPlace(wpBegin);
-                       CPVT_WordPlace wpEnd = wr.EndPos;
-                       m_pVT->UpdateWordPlace(wpEnd);
-                       pIterator->SetAt(wpBegin);
-
-                       CPVT_Line lineinfo;     
-                       do
-                       {
-                               if (!pIterator->GetLine(lineinfo))break;
-                               if (lineinfo.lineplace.LineCmp(wpEnd) > 0)break;
-
-                               CPDF_Rect rcLine(lineinfo.ptLine.x,
-                                                                       lineinfo.ptLine.y + lineinfo.fLineDescent,
-                                                                       lineinfo.ptLine.x + lineinfo.fLineWidth,
-                                                                       lineinfo.ptLine.y + lineinfo.fLineAscent);
-
-                               m_Refresh.Push(CPVT_WordRange(lineinfo.lineplace,lineinfo.lineEnd),VTToEdit(rcLine));
-
-                       }while (pIterator->NextLine());
-               }
-       }
-}
-
-void CFX_Edit::RefreshPushRandomRects(const CPVT_WordRange & wr)
-{
-       if (m_pVT->IsValid())
-       {
-               if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-               {
-                       CPVT_WordRange wrTemp = wr;
-
-                       m_pVT->UpdateWordPlace(wrTemp.BeginPos);
-                       m_pVT->UpdateWordPlace(wrTemp.EndPos);
-                       pIterator->SetAt(wrTemp.BeginPos);
-
-                       CPVT_Word wordinfo;     
-                       CPVT_Line lineinfo;     
-                       CPVT_WordPlace place;
-
-                       while (pIterator->NextWord())
-                       {
-                               place = pIterator->GetAt();
-                               if (place.WordCmp(wrTemp.EndPos) > 0) break;
-                                               
-                               pIterator->GetWord(wordinfo);
-                               pIterator->GetLine(lineinfo);
-
-                               if (place.LineCmp(wrTemp.BeginPos) == 0 || place.LineCmp(wrTemp.EndPos) == 0)
-                               {
-                                       CPDF_Rect rcWord(wordinfo.ptWord.x,
-                                                                               lineinfo.ptLine.y + lineinfo.fLineDescent,
-                                                                               wordinfo.ptWord.x + wordinfo.fWidth,
-                                                                               lineinfo.ptLine.y + lineinfo.fLineAscent);
-
-                                       m_Refresh.AddRefresh(VTToEdit(rcWord));
-                               }
-                               else
-                               {               
-                                       CPDF_Rect rcLine(lineinfo.ptLine.x,
-                                                                               lineinfo.ptLine.y + lineinfo.fLineDescent,
-                                                                               lineinfo.ptLine.x + lineinfo.fLineWidth,
-                                                                               lineinfo.ptLine.y + lineinfo.fLineAscent);
-
-                                       m_Refresh.AddRefresh(VTToEdit(rcLine));
-
-                                       pIterator->NextLine();
-                               }
-                       }
-               }
-       }
-}
-
-void CFX_Edit::RefreshWordRange(const CPVT_WordRange& wr)
-{
-       if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-       {
-               CPVT_WordRange wrTemp = wr;
-
-               m_pVT->UpdateWordPlace(wrTemp.BeginPos);
-               m_pVT->UpdateWordPlace(wrTemp.EndPos);
-               pIterator->SetAt(wrTemp.BeginPos);
-
-               CPVT_Word wordinfo;     
-               CPVT_Line lineinfo;     
-               CPVT_WordPlace place;
-
-               while (pIterator->NextWord())
-               {
-                       place = pIterator->GetAt();
-                       if (place.WordCmp(wrTemp.EndPos) > 0) break;
-                                       
-                       pIterator->GetWord(wordinfo);
-                       pIterator->GetLine(lineinfo);
-
-                       if (place.LineCmp(wrTemp.BeginPos) == 0 || place.LineCmp(wrTemp.EndPos) == 0)
-                       {
-                               CPDF_Rect rcWord(wordinfo.ptWord.x,
-                                                                       lineinfo.ptLine.y + lineinfo.fLineDescent,
-                                                                       wordinfo.ptWord.x + wordinfo.fWidth,
-                                                                       lineinfo.ptLine.y + lineinfo.fLineAscent);
-
-                               if (m_bNotify && m_pNotify)
-                               {
-                                       if (!m_bNotifyFlag)
-                                       {
-                                               m_bNotifyFlag = TRUE;
-                                               CPDF_Rect rcRefresh = VTToEdit(rcWord);
-                                               m_pNotify->IOnInvalidateRect(&rcRefresh);
-                                               m_bNotifyFlag = FALSE;
-                                       }
-                               }
-                       }
-                       else
-                       {               
-                               CPDF_Rect rcLine(lineinfo.ptLine.x,
-                                                                       lineinfo.ptLine.y + lineinfo.fLineDescent,
-                                                                       lineinfo.ptLine.x + lineinfo.fLineWidth,
-                                                                       lineinfo.ptLine.y + lineinfo.fLineAscent);
-
-                               if (m_bNotify && m_pNotify)
-                               {
-                                       if (!m_bNotifyFlag)
-                                       {
-                                               m_bNotifyFlag = TRUE;
-                                               CPDF_Rect rcRefresh = VTToEdit(rcLine);
-                                               m_pNotify->IOnInvalidateRect(&rcRefresh);
-                                               m_bNotifyFlag = FALSE;
-                                       }
-                               }
-
-                               pIterator->NextLine();
-                       }
-               }
-       }
-}
-
-void CFX_Edit::SetCaret(const CPVT_WordPlace & place)
-{
-       m_wpOldCaret = m_wpCaret; 
-       m_wpCaret = place;      
-}
-
-void CFX_Edit::SetCaretInfo()
-{
-       if (m_bNotify && m_pNotify)
-       {
-               if (!m_bNotifyFlag)
-               {
-                       CPDF_Point ptHead(0.0f,0.0f),ptFoot(0.0f,0.0f);
-
-                       if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-                       {
-                               pIterator->SetAt(m_wpCaret);
-                               CPVT_Word word;
-                               CPVT_Line line;
-                               if (pIterator->GetWord(word))
-                               {
-                                       ptHead.x = word.ptWord.x + word.fWidth;
-                                       ptHead.y = word.ptWord.y + word.fAscent;
-                                       ptFoot.x = word.ptWord.x + word.fWidth;
-                                       ptFoot.y = word.ptWord.y + word.fDescent;
-                               }
-                               else if (pIterator->GetLine(line))
-                               {                               
-                                       ptHead.x = line.ptLine.x;
-                                       ptHead.y = line.ptLine.y + line.fLineAscent;
-                                       ptFoot.x = line.ptLine.x;
-                                       ptFoot.y = line.ptLine.y + line.fLineDescent;
-                               }
-                       }               
-
-                       m_bNotifyFlag = TRUE;
-                       m_pNotify->IOnSetCaret(!m_SelState.IsExist(),VTToEdit(ptHead),VTToEdit(ptFoot), m_wpCaret);
-                       m_bNotifyFlag = FALSE;
-               }
-       }
-
-       SetCaretChange();
-}
-
-void CFX_Edit::SetCaretChange()
-{
-       if (this->m_wpCaret == this->m_wpOldCaret) return;
-
-       if (m_bNotify && m_pVT->IsRichText() && m_pNotify)
-       {
-               CPVT_SecProps SecProps;
-               CPVT_WordProps WordProps;
-
-               if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-               {
-                       pIterator->SetAt(m_wpCaret);
-                       CPVT_Word word;
-                       CPVT_Section section;
-
-                       if (pIterator->GetSection(section))
-                       {
-                               SecProps = section.SecProps;
-                               WordProps = section.WordProps;
-                       }
-                       
-                       if (pIterator->GetWord(word))
-                       {                               
-                               WordProps = word.WordProps;                             
-                       }
-               }               
-               
-               if (!m_bNotifyFlag)
-               {
-                       m_bNotifyFlag = TRUE;
-                       m_pNotify->IOnCaretChange(SecProps,WordProps);
-                       m_bNotifyFlag = FALSE;
-               }
-       }       
-}
-
-void CFX_Edit::SetCaret(FX_INT32 nPos)
-{
-       if (m_pVT->IsValid())
-       {
-               SelectNone();           
-               SetCaret(m_pVT->WordIndexToWordPlace(nPos));
-               m_SelState.Set(m_wpCaret,m_wpCaret);
-
-               ScrollToCaret();
-               SetCaretOrigin();
-               SetCaretInfo();
-       }
-}
-
-void CFX_Edit::OnMouseDown(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl)
-{
-       if (m_pVT->IsValid())
-       {
-               SelectNone();           
-               SetCaret(m_pVT->SearchWordPlace(EditToVT(point)));
-               m_SelState.Set(m_wpCaret,m_wpCaret);
-
-               ScrollToCaret();
-               SetCaretOrigin();
-               SetCaretInfo();
-       }
-}
-
-void CFX_Edit::OnMouseMove(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl)
-{
-       if (m_pVT->IsValid())
-       {
-               SetCaret(m_pVT->SearchWordPlace(EditToVT(point)));
-
-               if (m_wpCaret != m_wpOldCaret)
-               {
-                       m_SelState.SetEndPos(m_wpCaret);                
-
-                       ScrollToCaret();
-                       CPVT_WordRange wr(m_wpOldCaret,m_wpCaret);
-                       Refresh(RP_OPTIONAL,&wr);
-                       SetCaretOrigin();
-                       SetCaretInfo();
-               }
-       }
-}
-
-void CFX_Edit::OnVK_UP(FX_BOOL bShift,FX_BOOL bCtrl)
-{      
-       if (m_pVT->IsValid())
-       {
-               SetCaret(m_pVT->GetUpWordPlace(m_wpCaret,m_ptCaret));
-
-               if (bShift)
-               {
-                       if (m_SelState.IsExist())
-                               m_SelState.SetEndPos(m_wpCaret);
-                       else
-                               m_SelState.Set(m_wpOldCaret,m_wpCaret);
-
-                       if (m_wpOldCaret != m_wpCaret)
-                       {
-                               ScrollToCaret();
-                               CPVT_WordRange wr(m_wpOldCaret, m_wpCaret);
-                               Refresh(RP_OPTIONAL, &wr);
-                               SetCaretInfo();
-                       }
-               }
-               else
-               {
-                       SelectNone();           
-                       
-                       ScrollToCaret();                        
-                       SetCaretInfo();
-               }
-       }
-}
-
-void CFX_Edit::OnVK_DOWN(FX_BOOL bShift,FX_BOOL bCtrl)
-{
-       if (m_pVT->IsValid())
-       {
-               SetCaret(m_pVT->GetDownWordPlace(m_wpCaret,m_ptCaret));
-
-               if (bShift)
-               {
-                       if (m_SelState.IsExist())
-                               m_SelState.SetEndPos(m_wpCaret);
-                       else
-                               m_SelState.Set(m_wpOldCaret,m_wpCaret);
-
-                       if (m_wpOldCaret != m_wpCaret)
-                       {
-                               ScrollToCaret();
-                               CPVT_WordRange wr(m_wpOldCaret,m_wpCaret);
-                               Refresh(RP_OPTIONAL, &wr);
-                               SetCaretInfo();
-                       }
-               }
-               else
-               {
-                       SelectNone();
-
-                       ScrollToCaret();                
-                       SetCaretInfo();
-               }
-       }
-}
-
-void CFX_Edit::OnVK_LEFT(FX_BOOL bShift,FX_BOOL bCtrl)
-{
-       if (m_pVT->IsValid())
-       {
-               if (bShift)
-               {
-                       if (m_wpCaret == m_pVT->GetLineBeginPlace(m_wpCaret) &&
-                               m_wpCaret != m_pVT->GetSectionBeginPlace(m_wpCaret))
-                               SetCaret(m_pVT->GetPrevWordPlace(m_wpCaret));   
-
-                       SetCaret(m_pVT->GetPrevWordPlace(m_wpCaret));
-
-                       if (m_SelState.IsExist())
-                               m_SelState.SetEndPos(m_wpCaret);                        
-                       else
-                               m_SelState.Set(m_wpOldCaret, m_wpCaret);
-
-                       if (m_wpOldCaret != m_wpCaret)
-                       {
-                               ScrollToCaret();
-                               CPVT_WordRange wr(m_wpOldCaret,m_wpCaret);
-                               Refresh(RP_OPTIONAL,&wr);
-                               SetCaretInfo();
-                       }
-               }
-               else
-               {
-                       if (m_SelState.IsExist())
-                       {
-                               if (m_SelState.BeginPos.WordCmp(m_SelState.EndPos)<0)
-                                       SetCaret(m_SelState.BeginPos);
-                               else
-                                       SetCaret(m_SelState.EndPos);
-
-                               SelectNone();
-                               ScrollToCaret();
-                               SetCaretInfo();
-                       }
-                       else
-                       {
-                               if (m_wpCaret == m_pVT->GetLineBeginPlace(m_wpCaret) &&
-                                       m_wpCaret != m_pVT->GetSectionBeginPlace(m_wpCaret))
-                                       SetCaret(m_pVT->GetPrevWordPlace(m_wpCaret));   
-
-                               SetCaret(m_pVT->GetPrevWordPlace(m_wpCaret));
-
-                               ScrollToCaret();
-                               SetCaretOrigin();
-                               SetCaretInfo();
-                       }
-               }
-       }
-}
-
-void CFX_Edit::OnVK_RIGHT(FX_BOOL bShift,FX_BOOL bCtrl)
-{
-       if (m_pVT->IsValid())
-       {
-               if (bShift)
-               {
-                       SetCaret(m_pVT->GetNextWordPlace(m_wpCaret));
-
-                       if (m_wpCaret == m_pVT->GetLineEndPlace(m_wpCaret) &&
-                               m_wpCaret != m_pVT->GetSectionEndPlace(m_wpCaret))
-                               SetCaret(m_pVT->GetNextWordPlace(m_wpCaret));
-
-                       if (m_SelState.IsExist())
-                               m_SelState.SetEndPos(m_wpCaret);                        
-                       else
-                               m_SelState.Set(m_wpOldCaret,m_wpCaret);                 
-
-                       if (m_wpOldCaret != m_wpCaret)
-                       {                       
-                               ScrollToCaret();
-                               CPVT_WordRange wr(m_wpOldCaret,m_wpCaret);
-                               Refresh(RP_OPTIONAL,&wr);
-                               SetCaretInfo();
-                       }
-               }
-               else
-               {
-                       if (m_SelState.IsExist())
-                       {
-                               if (m_SelState.BeginPos.WordCmp(m_SelState.EndPos)>0)
-                                       SetCaret(m_SelState.BeginPos);
-                               else
-                                       SetCaret(m_SelState.EndPos);
-
-                               SelectNone();
-                               ScrollToCaret();
-                               SetCaretInfo();
-                       }
-                       else
-                       {
-                               SetCaret(m_pVT->GetNextWordPlace(m_wpCaret));
-
-                               if (m_wpCaret == m_pVT->GetLineEndPlace(m_wpCaret) &&
-                                       m_wpCaret != m_pVT->GetSectionEndPlace(m_wpCaret))
-                                       SetCaret(m_pVT->GetNextWordPlace(m_wpCaret));                           
-
-                               ScrollToCaret();
-                               SetCaretOrigin();
-                               SetCaretInfo();
-                       }
-               }
-       }
-}
-
-void CFX_Edit::OnVK_HOME(FX_BOOL bShift,FX_BOOL bCtrl)
-{
-       if (m_pVT->IsValid())
-       {
-               if (bShift)
-               {
-                       if (bCtrl)
-                               SetCaret(m_pVT->GetBeginWordPlace());
-                       else
-                               SetCaret(m_pVT->GetLineBeginPlace(m_wpCaret));
-
-                       if (m_SelState.IsExist())
-                               m_SelState.SetEndPos(m_wpCaret);                        
-                       else
-                               m_SelState.Set(m_wpOldCaret,m_wpCaret);
-
-                       ScrollToCaret();
-                       CPVT_WordRange wr(m_wpOldCaret, m_wpCaret);
-                       Refresh(RP_OPTIONAL, &wr);
-                       SetCaretInfo();
-               }
-               else
-               {
-                       if (m_SelState.IsExist())
-                       {
-                               if (m_SelState.BeginPos.WordCmp(m_SelState.EndPos)<0)
-                                       SetCaret(m_SelState.BeginPos);
-                               else
-                                       SetCaret(m_SelState.EndPos);
-
-                               SelectNone();
-                               ScrollToCaret();
-                               SetCaretInfo();
-                       }
-                       else
-                       {
-                               if (bCtrl)
-                                       SetCaret(m_pVT->GetBeginWordPlace());
-                               else
-                                       SetCaret(m_pVT->GetLineBeginPlace(m_wpCaret));  
-                               
-                               ScrollToCaret();
-                               SetCaretOrigin();
-                               SetCaretInfo();
-                       }
-               }
-       }
-}
-
-void CFX_Edit::OnVK_END(FX_BOOL bShift,FX_BOOL bCtrl)
-{
-       if (m_pVT->IsValid())
-       {
-               if (bShift)
-               {
-                       if (bCtrl)
-                               SetCaret(m_pVT->GetEndWordPlace());
-                       else
-                               SetCaret(m_pVT->GetLineEndPlace(m_wpCaret));
-
-                       if (m_SelState.IsExist())
-                               m_SelState.SetEndPos(m_wpCaret);
-                       else
-                               m_SelState.Set(m_wpOldCaret, m_wpCaret);
-
-                       ScrollToCaret();
-                       CPVT_WordRange wr(m_wpOldCaret, m_wpCaret);
-                       Refresh(RP_OPTIONAL, &wr);
-                       SetCaretInfo();
-               }
-               else
-               {
-                       if (m_SelState.IsExist())
-                       {
-                               if (m_SelState.BeginPos.WordCmp(m_SelState.EndPos)>0)
-                                       SetCaret(m_SelState.BeginPos);
-                               else
-                                       SetCaret(m_SelState.EndPos);
-
-                               SelectNone();
-                               ScrollToCaret();
-                               SetCaretInfo();
-                       }
-                       else
-                       {
-                               if (bCtrl)
-                                       SetCaret(m_pVT->GetEndWordPlace());
-                               else
-                                       SetCaret(m_pVT->GetLineEndPlace(m_wpCaret));
-                                               
-                               ScrollToCaret();                        
-                               SetCaretOrigin();
-                               SetCaretInfo();
-                       }
-               }
-       }
-}
-
-void CFX_Edit::SetText(FX_LPCWSTR text,FX_INT32 charset,
-                                               const CPVT_SecProps * pSecProps,const CPVT_WordProps * pWordProps, FX_BOOL bAddUndo, FX_BOOL bPaint)
-{
-       Empty();
-       DoInsertText(CPVT_WordPlace(0,0,-1), text, charset, pSecProps, pWordProps);
-       if (bPaint) Paint();
-       if (m_bOprNotify && m_pOprNotify)
-               m_pOprNotify->OnSetText(m_wpCaret, m_wpOldCaret);
-       //if (bAddUndo)
-}
-
-FX_BOOL CFX_Edit::InsertWord(FX_WORD word, FX_INT32 charset, const CPVT_WordProps * pWordProps, FX_BOOL bAddUndo, FX_BOOL bPaint)
-{
-       if (IsTextOverflow()) return FALSE;
-
-       if (m_pVT->IsValid())
-       {
-               m_pVT->UpdateWordPlace(m_wpCaret);
-
-               SetCaret(m_pVT->InsertWord(m_wpCaret,word,GetCharSetFromUnicode(word, charset),pWordProps));
-               m_SelState.Set(m_wpCaret,m_wpCaret);
-
-               if (m_wpCaret != m_wpOldCaret)
-               {
-                       if (bAddUndo && m_bEnableUndo)
-                       {
-                               AddEditUndoItem(new CFXEU_InsertWord(this,m_wpOldCaret,m_wpCaret,word,charset,pWordProps));
-                       }
-
-                       if (bPaint)
-                               PaintInsertText(m_wpOldCaret, m_wpCaret);
-
-                       if (m_bOprNotify && m_pOprNotify)
-                               m_pOprNotify->OnInsertWord(m_wpCaret, m_wpOldCaret);
-
-                       return TRUE;
-               }
-       }
-       
-       return FALSE;
-}
-
-FX_BOOL CFX_Edit::InsertReturn(const CPVT_SecProps * pSecProps,const CPVT_WordProps * pWordProps, 
-                                                          FX_BOOL bAddUndo, FX_BOOL bPaint)
-{
-       if (IsTextOverflow()) return FALSE;
-
-       if (m_pVT->IsValid())
-       {
-               m_pVT->UpdateWordPlace(m_wpCaret);
-               SetCaret(m_pVT->InsertSection(m_wpCaret,pSecProps,pWordProps));
-               m_SelState.Set(m_wpCaret,m_wpCaret);
-
-               if (m_wpCaret != m_wpOldCaret)
-               {
-                       if (bAddUndo && m_bEnableUndo)
-                       {
-                               AddEditUndoItem(new CFXEU_InsertReturn(this,m_wpOldCaret,m_wpCaret,pSecProps,pWordProps));
-                       }
-
-                       if (bPaint)
-                       {
-                               RearrangePart(CPVT_WordRange(m_wpOldCaret, m_wpCaret));
-                               ScrollToCaret();
-                               CPVT_WordRange wr(m_wpOldCaret, GetVisibleWordRange().EndPos);
-                               Refresh(RP_ANALYSE, &wr);               
-                               SetCaretOrigin();
-                               SetCaretInfo();                 
-                       }
-
-                       if (m_bOprNotify && m_pOprNotify)
-                               m_pOprNotify->OnInsertReturn(m_wpCaret, m_wpOldCaret);
-
-                       return TRUE;
-               }
-       }
-
-       return FALSE;
-}
-
-FX_BOOL CFX_Edit::Backspace(FX_BOOL bAddUndo, FX_BOOL bPaint)
-{
-       if (m_pVT->IsValid())
-       {
-               if (m_wpCaret == m_pVT->GetBeginWordPlace()) return FALSE;
-
-               CPVT_Section section;
-               CPVT_Word word;
-
-               if (bAddUndo)
-               {
-                       if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-                       {                               
-                               pIterator->SetAt(m_wpCaret);
-                               pIterator->GetSection(section);
-                               pIterator->GetWord(word);
-                       }
-               }
-
-               m_pVT->UpdateWordPlace(m_wpCaret);
-               SetCaret(m_pVT->BackSpaceWord(m_wpCaret));
-               m_SelState.Set(m_wpCaret,m_wpCaret);
-
-               if (m_wpCaret != m_wpOldCaret)
-               {
-                       if (bAddUndo && m_bEnableUndo)
-                       {
-                               if (m_wpCaret.SecCmp(m_wpOldCaret) != 0)                        
-                                       AddEditUndoItem(new CFXEU_Backspace(this,m_wpOldCaret,m_wpCaret,word.Word,word.nCharset,
-                                               section.SecProps,section.WordProps));
-                               else
-                                       AddEditUndoItem(new CFXEU_Backspace(this,m_wpOldCaret,m_wpCaret,word.Word,word.nCharset,
-                                               section.SecProps,word.WordProps));
-                       }
-
-                       if (bPaint)
-                       {
-                               RearrangePart(CPVT_WordRange(m_wpCaret,m_wpOldCaret));
-                               ScrollToCaret();
-
-                               CPVT_WordRange wr;
-                               if (m_wpCaret.SecCmp(m_wpOldCaret) !=0)
-                                       wr = CPVT_WordRange(m_pVT->GetPrevWordPlace(m_wpCaret),GetVisibleWordRange().EndPos);   
-                               else if (m_wpCaret.LineCmp(m_wpOldCaret) !=0)
-                                       wr = CPVT_WordRange(m_pVT->GetLineBeginPlace(m_wpCaret),m_pVT->GetSectionEndPlace(m_wpCaret));
-                               else
-                                       wr = CPVT_WordRange(m_pVT->GetPrevWordPlace(m_wpCaret),m_pVT->GetSectionEndPlace(m_wpCaret));
-
-                               Refresh(RP_ANALYSE, &wr);
-
-                               SetCaretOrigin();
-                               SetCaretInfo();
-                       }
-
-                       if (m_bOprNotify && m_pOprNotify)
-                               m_pOprNotify->OnBackSpace(m_wpCaret, m_wpOldCaret);
-
-                       return TRUE;
-               }
-       }
-
-       return FALSE;
-}
-
-FX_BOOL CFX_Edit::Delete(FX_BOOL bAddUndo, FX_BOOL bPaint)
-{
-       if (m_pVT->IsValid())
-       {
-               if (m_wpCaret == m_pVT->GetEndWordPlace()) return FALSE;
-
-               CPVT_Section section;
-               CPVT_Word word;
-
-               if (bAddUndo)
-               {
-                       if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-                       {                               
-                               pIterator->SetAt(m_pVT->GetNextWordPlace(m_wpCaret));
-                               pIterator->GetSection(section);
-                               pIterator->GetWord(word);
-                       }
-               }
-
-               m_pVT->UpdateWordPlace(m_wpCaret);
-               FX_BOOL bSecEnd = (m_wpCaret == m_pVT->GetSectionEndPlace(m_wpCaret));
-
-               SetCaret(m_pVT->DeleteWord(m_wpCaret));
-               m_SelState.Set(m_wpCaret,m_wpCaret);
-
-               if (bAddUndo && m_bEnableUndo)
-               {
-                       if (bSecEnd)            
-                               AddEditUndoItem(new CFXEU_Delete(this,m_wpOldCaret,m_wpCaret,word.Word,word.nCharset,
-                                       section.SecProps,section.WordProps,bSecEnd));
-                       else
-                               AddEditUndoItem(new CFXEU_Delete(this,m_wpOldCaret,m_wpCaret,word.Word,word.nCharset,
-                                       section.SecProps,word.WordProps,bSecEnd));
-               }
-               
-               if (bPaint)
-               {
-                       RearrangePart(CPVT_WordRange(m_wpOldCaret,m_wpCaret));
-                       ScrollToCaret();
-
-                       CPVT_WordRange wr;
-                       if (bSecEnd)
-                               wr = CPVT_WordRange(m_pVT->GetPrevWordPlace(m_wpOldCaret),GetVisibleWordRange().EndPos);
-                       else if (m_wpCaret.LineCmp(m_wpOldCaret) !=0)
-                               wr = CPVT_WordRange(m_pVT->GetLineBeginPlace(m_wpCaret),m_pVT->GetSectionEndPlace(m_wpCaret));
-                       else
-                               wr = CPVT_WordRange(m_pVT->GetPrevWordPlace(m_wpOldCaret),m_pVT->GetSectionEndPlace(m_wpCaret));                        
-
-                       Refresh(RP_ANALYSE, &wr);
-                       
-                       SetCaretOrigin();
-                       SetCaretInfo();
-               }
-
-               if (m_bOprNotify && m_pOprNotify)
-                       m_pOprNotify->OnDelete(m_wpCaret, m_wpOldCaret);
-
-               return TRUE;
-       }
-
-       return FALSE;
-}
-
-FX_BOOL        CFX_Edit::Empty()
-{
-       if (m_pVT->IsValid())
-       {
-               m_pVT->DeleteWords(GetWholeWordRange());
-               SetCaret(m_pVT->GetBeginWordPlace());
-
-               return TRUE;
-       }
-
-       return FALSE;
-}
-
-FX_BOOL CFX_Edit::Clear(FX_BOOL bAddUndo, FX_BOOL bPaint)
-{
-       if (m_pVT->IsValid())
-       {
-               if (m_SelState.IsExist())
-               {
-                       CPVT_WordRange range = m_SelState.ConvertToWordRange();
-
-                       if (bAddUndo && m_bEnableUndo)
-                       {
-                               if (m_pVT->IsRichText())
-                               {
-                                       BeginGroupUndo(L"");
-
-                                       if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-                                       {
-                                               pIterator->SetAt(range.EndPos);
-
-                                               CPVT_Word wordinfo;     
-                                               CPVT_Section secinfo;                                           
-                                               do
-                                               {                                                       
-                                                       CPVT_WordPlace place = pIterator->GetAt();
-                                                       if (place.WordCmp(range.BeginPos) <= 0)break;
-
-                                                       CPVT_WordPlace oldplace = m_pVT->GetPrevWordPlace(place);                                                       
-
-                                                       if (oldplace.SecCmp(place) != 0)
-                                                       {
-                                                               if (pIterator->GetSection(secinfo))
-                                                               {
-                                                                       AddEditUndoItem(new CFXEU_ClearRich(this,oldplace,place,range,wordinfo.Word,
-                                                                               wordinfo.nCharset,secinfo.SecProps,secinfo.WordProps));
-                                                               }
-                                                       }
-                                                       else
-                                                       {
-                                                               if (pIterator->GetWord(wordinfo))
-                                                               {                                                                       
-                                                                       oldplace = m_pVT->AjustLineHeader(oldplace,TRUE);
-                                                                       place = m_pVT->AjustLineHeader(place,TRUE);
-
-                                                                       AddEditUndoItem(new CFXEU_ClearRich(this,oldplace,place,range,wordinfo.Word,
-                                                                               wordinfo.nCharset,secinfo.SecProps,wordinfo.WordProps));
-                                                               }
-                                                       }
-                                               }while (pIterator->PrevWord());
-                                       }
-                                       EndGroupUndo();
-                               }
-                               else
-                               {                                       
-                                       AddEditUndoItem(new CFXEU_Clear(this,range,GetSelText()));                                      
-                               }
-                       }
-
-                       SelectNone();                   
-                       SetCaret(m_pVT->DeleteWords(range));    
-                       m_SelState.Set(m_wpCaret,m_wpCaret);
-
-                       if (bPaint)
-                       {
-                               RearrangePart(range);   
-                               ScrollToCaret();
-
-                               CPVT_WordRange wr(m_wpOldCaret, GetVisibleWordRange().EndPos);
-                               Refresh(RP_ANALYSE, &wr);
-                               
-                               SetCaretOrigin();
-                               SetCaretInfo();
-                       }
-
-                       if (m_bOprNotify && m_pOprNotify)
-                               m_pOprNotify->OnClear(m_wpCaret, m_wpOldCaret);
-
-                       return TRUE;
-               }
-       }
-
-       return FALSE;
-}
-
-FX_BOOL CFX_Edit::InsertText(FX_LPCWSTR text, FX_INT32 charset,
-                                       const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps, FX_BOOL bAddUndo, FX_BOOL bPaint)
-{
-       if (IsTextOverflow()) return FALSE;
-
-       m_pVT->UpdateWordPlace(m_wpCaret);
-       SetCaret(DoInsertText(m_wpCaret, text, charset, pSecProps, pWordProps));
-       m_SelState.Set(m_wpCaret,m_wpCaret);
-
-       if (m_wpCaret != m_wpOldCaret)
-       {
-               if (bAddUndo && m_bEnableUndo)
-               {
-                       AddEditUndoItem(new CFXEU_InsertText(this,m_wpOldCaret,m_wpCaret,text,charset,pSecProps,pWordProps));
-               }
-
-               if (bPaint)
-                       PaintInsertText(m_wpOldCaret, m_wpCaret);
-
-               if (m_bOprNotify && m_pOprNotify)
-                       m_pOprNotify->OnInsertText(m_wpCaret, m_wpOldCaret);
-
-               return TRUE;
-       }
-       return FALSE;
-}
-
-void CFX_Edit::PaintInsertText(const CPVT_WordPlace & wpOld, const CPVT_WordPlace & wpNew)
-{
-       if (m_pVT->IsValid())
-       {
-               RearrangePart(CPVT_WordRange(wpOld,wpNew));
-               ScrollToCaret();
-               
-               CPVT_WordRange wr;
-               if (m_wpCaret.LineCmp(wpOld) !=0)
-                       wr = CPVT_WordRange(m_pVT->GetLineBeginPlace(wpOld),m_pVT->GetSectionEndPlace(wpNew));  
-               else
-                       wr = CPVT_WordRange(wpOld,m_pVT->GetSectionEndPlace(wpNew));    
-               Refresh(RP_ANALYSE, &wr);
-               SetCaretOrigin();
-               SetCaretInfo();
-       }
-}
-
-FX_BOOL CFX_Edit::Redo()
-{
-       if (m_bEnableUndo)
-       {
-               if (m_Undo.CanRedo())
-               {
-                       m_Undo.Redo();
-                       return TRUE;
-               }
-       }
-
-       return FALSE;
-}
-
-FX_BOOL CFX_Edit::Undo()
-{
-       if (m_bEnableUndo)
-       {
-               if (m_Undo.CanUndo())
-               {
-                       m_Undo.Undo();
-                       return TRUE;
-               }
-       }
+  return FALSE;
+}
+
+FX_BOOL CFX_Edit::Undo() {
+  if (m_bEnableUndo) {
+    if (m_Undo.CanUndo()) {
+      m_Undo.Undo();
+      return TRUE;
+    }
+  }
 
-       return FALSE;
+  return FALSE;
 }
 
-void CFX_Edit::SetCaretOrigin()
-{
-       if (m_pVT->IsValid())
-       {
-               if (IPDF_VariableText_Iterator * pIterator = m_pVT->GetIterator())
-               {
-                       pIterator->SetAt(m_wpCaret);
-                       CPVT_Word word;
-                       CPVT_Line line;
-                       if (pIterator->GetWord(word))
-                       {
-                               m_ptCaret.x = word.ptWord.x + word.fWidth;
-                               m_ptCaret.y = word.ptWord.y;
-                       }
-                       else if (pIterator->GetLine(line))
-                       {                               
-                               m_ptCaret.x = line.ptLine.x;
-                               m_ptCaret.y = line.ptLine.y;
-                       }
-               }                               
-       }       
+void CFX_Edit::SetCaretOrigin() {
+  if (m_pVT->IsValid()) {
+    if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+      pIterator->SetAt(m_wpCaret);
+      CPVT_Word word;
+      CPVT_Line line;
+      if (pIterator->GetWord(word)) {
+        m_ptCaret.x = word.ptWord.x + word.fWidth;
+        m_ptCaret.y = word.ptWord.y;
+      } else if (pIterator->GetLine(line)) {
+        m_ptCaret.x = line.ptLine.x;
+        m_ptCaret.y = line.ptLine.y;
+      }
+    }
+  }
 }
 
-FX_INT32 CFX_Edit::WordPlaceToWordIndex(const CPVT_WordPlace & place) const
-{
-       if (m_pVT->IsValid())
-               return m_pVT->WordPlaceToWordIndex(place);
+int32_t CFX_Edit::WordPlaceToWordIndex(const CPVT_WordPlace& place) const {
+  if (m_pVT->IsValid())
+    return m_pVT->WordPlaceToWordIndex(place);
 
-       return -1;
+  return -1;
 }
 
-CPVT_WordPlace CFX_Edit::WordIndexToWordPlace(FX_INT32 index) const
-{
-       if (m_pVT->IsValid())
-               return m_pVT->WordIndexToWordPlace(index);
+CPVT_WordPlace CFX_Edit::WordIndexToWordPlace(int32_t index) const {
+  if (m_pVT->IsValid())
+    return m_pVT->WordIndexToWordPlace(index);
 
-       return CPVT_WordPlace();
+  return CPVT_WordPlace();
 }
 
-FX_BOOL        CFX_Edit::IsTextFull() const
-{
-       FX_INT32 nTotalWords = m_pVT->GetTotalWords();
-       FX_INT32 nLimitChar = m_pVT->GetLimitChar();
-       FX_INT32 nCharArray = m_pVT->GetCharArray();
+FX_BOOL CFX_Edit::IsTextFull() const {
+  int32_t nTotalWords = m_pVT->GetTotalWords();
+  int32_t nLimitChar = m_pVT->GetLimitChar();
+  int32_t nCharArray = m_pVT->GetCharArray();
 
-       return IsTextOverflow() || (nLimitChar>0 && nTotalWords >= nLimitChar)
-               || (nCharArray>0 && nTotalWords >= nCharArray);
+  return IsTextOverflow() || (nLimitChar > 0 && nTotalWords >= nLimitChar) ||
+         (nCharArray > 0 && nTotalWords >= nCharArray);
 }
 
-FX_BOOL        CFX_Edit::IsTextOverflow() const
-{
-       if (!m_bEnableScroll && !m_bEnableOverflow)
-       {
-               CPDF_Rect rcPlate = m_pVT->GetPlateRect();
-               CPDF_Rect rcContent = m_pVT->GetContentRect();
+FX_BOOL CFX_Edit::IsTextOverflow() const {
+  if (!m_bEnableScroll && !m_bEnableOverflow) {
+    CPDF_Rect rcPlate = m_pVT->GetPlateRect();
+    CPDF_Rect rcContent = m_pVT->GetContentRect();
 
-               if (m_pVT->IsMultiLine() && GetTotalLines() > 1)
-               {
-                       if (FX_EDIT_IsFloatBigger(rcContent.Height(),rcPlate.Height())) return TRUE;
-               }
+    if (m_pVT->IsMultiLine() && GetTotalLines() > 1) {
+      if (FX_EDIT_IsFloatBigger(rcContent.Height(), rcPlate.Height()))
+        return TRUE;
+    }
 
-               if (FX_EDIT_IsFloatBigger(rcContent.Width(),rcPlate.Width())) return TRUE;
-       }
+    if (FX_EDIT_IsFloatBigger(rcContent.Width(), rcPlate.Width()))
+      return TRUE;
+  }
 
-       return FALSE;
+  return FALSE;
 }
 
-CPVT_WordPlace CFX_Edit::GetLineBeginPlace(const CPVT_WordPlace & place) const
-{
-       return m_pVT->GetLineBeginPlace(place);
+CPVT_WordPlace CFX_Edit::GetLineBeginPlace(const CPVT_WordPlace& place) const {
+  return m_pVT->GetLineBeginPlace(place);
 }
 
-CPVT_WordPlace CFX_Edit::GetLineEndPlace(const CPVT_WordPlace & place) const
-{
-       return m_pVT->GetLineEndPlace(place);
+CPVT_WordPlace CFX_Edit::GetLineEndPlace(const CPVT_WordPlace& place) const {
+  return m_pVT->GetLineEndPlace(place);
 }
 
-CPVT_WordPlace CFX_Edit::GetSectionBeginPlace(const CPVT_WordPlace & place) const
-{
-       return m_pVT->GetSectionBeginPlace(place);
+CPVT_WordPlace CFX_Edit::GetSectionBeginPlace(
+    const CPVT_WordPlace& place) const {
+  return m_pVT->GetSectionBeginPlace(place);
 }
 
-CPVT_WordPlace CFX_Edit::GetSectionEndPlace(const CPVT_WordPlace & place) const
-{
-       return m_pVT->GetSectionEndPlace(place);
+CPVT_WordPlace CFX_Edit::GetSectionEndPlace(const CPVT_WordPlace& place) const {
+  return m_pVT->GetSectionEndPlace(place);
 }
 
-FX_BOOL        CFX_Edit::CanUndo() const
-{
-       if (m_bEnableUndo)
-       {
-               return m_Undo.CanUndo();
-       }
+FX_BOOL CFX_Edit::CanUndo() const {
+  if (m_bEnableUndo) {
+    return m_Undo.CanUndo();
+  }
 
-       return FALSE;
+  return FALSE;
 }
 
-FX_BOOL        CFX_Edit::CanRedo() const
-{
-       if (m_bEnableUndo)
-       {
-               return m_Undo.CanRedo();
-       }
+FX_BOOL CFX_Edit::CanRedo() const {
+  if (m_bEnableUndo) {
+    return m_Undo.CanRedo();
+  }
 
-       return FALSE;
+  return FALSE;
 }
 
-FX_BOOL        CFX_Edit::IsModified() const
-{
-       if (m_bEnableUndo)
-       {
-               return m_Undo.IsModified();
-       }
+FX_BOOL CFX_Edit::IsModified() const {
+  if (m_bEnableUndo) {
+    return m_Undo.IsModified();
+  }
 
-       return FALSE;
+  return FALSE;
 }
 
-void CFX_Edit::EnableRefresh(FX_BOOL bRefresh)
-{
-       m_bEnableRefresh = bRefresh;
+void CFX_Edit::EnableRefresh(FX_BOOL bRefresh) {
+  m_bEnableRefresh = bRefresh;
 }
 
-void CFX_Edit::EnableUndo(FX_BOOL bUndo)
-{
-       this->m_bEnableUndo = bUndo;
+void CFX_Edit::EnableUndo(FX_BOOL bUndo) {
+  m_bEnableUndo = bUndo;
 }
 
-void CFX_Edit::EnableNotify(FX_BOOL bNotify)
-{
-       this->m_bNotify = bNotify;
+void CFX_Edit::EnableNotify(FX_BOOL bNotify) {
+  m_bNotify = bNotify;
 }
 
-void CFX_Edit::EnableOprNotify(FX_BOOL bNotify)
-{
-       this->m_bOprNotify = bNotify;
+void CFX_Edit::EnableOprNotify(FX_BOOL bNotify) {
+  m_bOprNotify = bNotify;
 }
 
-FX_FLOAT CFX_Edit::GetLineTop(const CPVT_WordPlace& place) const
-{
-       if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator())
-       {
-               CPVT_WordPlace wpOld = pIterator->GetAt();
+FX_FLOAT CFX_Edit::GetLineTop(const CPVT_WordPlace& place) const {
+  if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+    CPVT_WordPlace wpOld = pIterator->GetAt();
 
-               pIterator->SetAt(place);
-               CPVT_Line line;
-               pIterator->GetLine(line);
+    pIterator->SetAt(place);
+    CPVT_Line line;
+    pIterator->GetLine(line);
 
-               pIterator->SetAt(wpOld);
+    pIterator->SetAt(wpOld);
 
-               return line.ptLine.y + line.fLineAscent;
-       }
+    return line.ptLine.y + line.fLineAscent;
+  }
 
-       return 0.0f;
+  return 0.0f;
 }
 
-FX_FLOAT CFX_Edit::GetLineBottom(const CPVT_WordPlace& place) const
-{
-       if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator())
-       {
-               CPVT_WordPlace wpOld = pIterator->GetAt();
+FX_FLOAT CFX_Edit::GetLineBottom(const CPVT_WordPlace& place) const {
+  if (IPDF_VariableText_Iterator* pIterator = m_pVT->GetIterator()) {
+    CPVT_WordPlace wpOld = pIterator->GetAt();
 
-               pIterator->SetAt(place);
-               CPVT_Line line;
-               pIterator->GetLine(line);
+    pIterator->SetAt(place);
+    CPVT_Line line;
+    pIterator->GetLine(line);
 
-               pIterator->SetAt(wpOld);
+    pIterator->SetAt(wpOld);
 
-               return line.ptLine.y + line.fLineDescent;
-       }
+    return line.ptLine.y + line.fLineDescent;
+  }
 
-       return 0.0f;
+  return 0.0f;
 }
 
-CPVT_WordPlace CFX_Edit::DoInsertText(const CPVT_WordPlace& place, FX_LPCWSTR text, FX_INT32 charset, 
-                                                                         const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps)
-{
-       CPVT_WordPlace wp = place;
+CPVT_WordPlace CFX_Edit::DoInsertText(const CPVT_WordPlace& place,
+                                      const FX_WCHAR* text,
+                                      int32_t charset,
+                                      const CPVT_SecProps* pSecProps,
+                                      const CPVT_WordProps* pWordProps) {
+  CPVT_WordPlace wp = place;
 
-       if (m_pVT->IsValid())
-       {
-               CFX_WideString sText = text;
+  if (m_pVT->IsValid()) {
+    CFX_WideString sText = text;
 
-               for (FX_INT32 i = 0, sz = sText.GetLength(); i < sz; i++)
-               {
-                       FX_WORD word = sText[i];
-                       switch (word)
-                       {
-                       case 0x0D:
-                               wp = m_pVT->InsertSection(wp,pSecProps,pWordProps);
-                               if (sText[i+1] == 0x0A)
-                                       i++;
-                               break;
-                       case 0x0A:      
-                               wp = m_pVT->InsertSection(wp,pSecProps,pWordProps);
-                               if (sText[i+1] == 0x0D)
-                                       i++;
-                               break;
-                       case 0x09:
-                               word = 0x20;
-                       default:
-                               wp = m_pVT->InsertWord(wp,word,GetCharSetFromUnicode(word, charset),pWordProps);
-                               break;
-                       }
-               }
-       }
+    for (int32_t i = 0, sz = sText.GetLength(); i < sz; i++) {
+      FX_WORD word = sText[i];
+      switch (word) {
+        case 0x0D:
+          wp = m_pVT->InsertSection(wp, pSecProps, pWordProps);
+          if (sText[i + 1] == 0x0A)
+            i++;
+          break;
+        case 0x0A:
+          wp = m_pVT->InsertSection(wp, pSecProps, pWordProps);
+          if (sText[i + 1] == 0x0D)
+            i++;
+          break;
+        case 0x09:
+          word = 0x20;
+        default:
+          wp = m_pVT->InsertWord(wp, word, GetCharSetFromUnicode(word, charset),
+                                 pWordProps);
+          break;
+      }
+    }
+  }
 
-       return wp;
+  return wp;
 }
 
-FX_INT32 CFX_Edit::GetCharSetFromUnicode(FX_WORD word, FX_INT32 nOldCharset)
-{
-       if (IFX_Edit_FontMap* pFontMap = this->GetFontMap())
-               return pFontMap->CharSetFromUnicode(word, nOldCharset);
-       else
-               return nOldCharset;
+int32_t CFX_Edit::GetCharSetFromUnicode(FX_WORD word, int32_t nOldCharset) {
+  if (IFX_Edit_FontMap* pFontMap = GetFontMap())
+    return pFontMap->CharSetFromUnicode(word, nOldCharset);
+  return nOldCharset;
 }
 
-void CFX_Edit::BeginGroupUndo(const CFX_WideString& sTitle)
-{
-       ASSERT(m_pGroupUndoItem == NULL);
+void CFX_Edit::BeginGroupUndo(const CFX_WideString& sTitle) {
+  ASSERT(m_pGroupUndoItem == NULL);
 
-       m_pGroupUndoItem = new CFX_Edit_GroupUndoItem(sTitle);
+  m_pGroupUndoItem = new CFX_Edit_GroupUndoItem(sTitle);
 }
 
-void CFX_Edit::EndGroupUndo()
-{
-       ASSERT(m_pGroupUndoItem != NULL);
+void CFX_Edit::EndGroupUndo() {
+  ASSERT(m_pGroupUndoItem != NULL);
 
-       m_pGroupUndoItem->UpdateItems();
-       m_Undo.AddItem(m_pGroupUndoItem);
-       if (m_bOprNotify && m_pOprNotify)
-               m_pOprNotify->OnAddUndo(m_pGroupUndoItem);
-       m_pGroupUndoItem = NULL;
+  m_pGroupUndoItem->UpdateItems();
+  m_Undo.AddItem(m_pGroupUndoItem);
+  if (m_bOprNotify && m_pOprNotify)
+    m_pOprNotify->OnAddUndo(m_pGroupUndoItem);
+  m_pGroupUndoItem = NULL;
 }
 
-void CFX_Edit::AddEditUndoItem(CFX_Edit_UndoItem* pEditUndoItem)
-{
-       if (m_pGroupUndoItem)
-               m_pGroupUndoItem->AddUndoItem(pEditUndoItem);
-       else
-       {
-               m_Undo.AddItem(pEditUndoItem);
-               if (m_bOprNotify && m_pOprNotify)
-                       m_pOprNotify->OnAddUndo(pEditUndoItem);
-       }
+void CFX_Edit::AddEditUndoItem(CFX_Edit_UndoItem* pEditUndoItem) {
+  if (m_pGroupUndoItem)
+    m_pGroupUndoItem->AddUndoItem(pEditUndoItem);
+  else {
+    m_Undo.AddItem(pEditUndoItem);
+    if (m_bOprNotify && m_pOprNotify)
+      m_pOprNotify->OnAddUndo(pEditUndoItem);
+  }
 }
 
-void CFX_Edit::AddUndoItem(IFX_Edit_UndoItem* pUndoItem)
-{
-       m_Undo.AddItem(pUndoItem);
-       if (m_bOprNotify && m_pOprNotify)
-               m_pOprNotify->OnAddUndo(pUndoItem);
+void CFX_Edit::AddUndoItem(IFX_Edit_UndoItem* pUndoItem) {
+  m_Undo.AddItem(pUndoItem);
+  if (m_bOprNotify && m_pOprNotify)
+    m_pOprNotify->OnAddUndo(pUndoItem);
 }
-