clang-format all pdfium code.

fpdfsdk/include/fxedit/fxet_edit.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef FPDFSDK_INCLUDE_FXEDIT_FXET_EDIT_H_
 #define FPDFSDK_INCLUDE_FXEDIT_FXET_EDIT_H_
 
 #include "../../../core/include/fpdfdoc/fpdf_vt.h"
 #include "fx_edit.h"
 
 class CFX_Edit_Page;
 struct CFX_Edit_LineRect;
 class CFX_Edit_LineRectArray;
 class CFX_Edit_RectArray;
 class CFX_Edit_Refresh;
 class CFX_Edit_Select;
 class CFX_Edit;
 class CFX_Edit_Iterator;
 class CFX_Edit_Refresh;
 class CFX_Edit_UndoItem;
 class CFX_Edit_Undo;
 class CFX_Edit_Provider;
 
-#define FX_EDIT_IsFloatZero(f)                                          (f < 0.0001 && f > -0.0001)
-#define FX_EDIT_IsFloatEqual(fa,fb)                                     FX_EDIT_IsFloatZero(fa - fb)
-#define FX_EDIT_IsFloatBigger(fa,fb)                            (fa > fb && !FX_EDIT_IsFloatEqual(fa,fb))
-#define FX_EDIT_IsFloatSmaller(fa,fb)                           (fa < fb && !FX_EDIT_IsFloatEqual(fa,fb))
-
-template<class T> T FX_EDIT_MIN (const T & i, const T & j) { return ((i < j) ? i : j); }
-template<class T> T FX_EDIT_MAX (const T & i, const T & j) { return ((i > j) ? i : j); }
-
-#define FX_EDIT_PI                                                                      3.14159265358979f
-#define FX_EDIT_ITALIC_ANGEL                                            10 * FX_EDIT_PI / 180.0f
-
+#define FX_EDIT_IsFloatZero(f) (f < 0.0001 && f > -0.0001)
+#define FX_EDIT_IsFloatEqual(fa, fb) FX_EDIT_IsFloatZero(fa - fb)
+#define FX_EDIT_IsFloatBigger(fa, fb) (fa > fb && !FX_EDIT_IsFloatEqual(fa, fb))
+#define FX_EDIT_IsFloatSmaller(fa, fb) \
+  (fa < fb && !FX_EDIT_IsFloatEqual(fa, fb))
+
+template <class T>
+T FX_EDIT_MIN(const T& i, const T& j) {
+  return ((i < j) ? i : j);
+}
+template <class T>
+T FX_EDIT_MAX(const T& i, const T& j) {
+  return ((i > j) ? i : j);
+}
+
+#define FX_EDIT_PI 3.14159265358979f
+#define FX_EDIT_ITALIC_ANGEL 10 * FX_EDIT_PI / 180.0f
 
 /* ------------------------- CFX_Edit_Refresh ---------------------------- */
 
-enum REFRESH_PLAN_E
-{
-        RP_ANALYSE,
-        RP_NOANALYSE,
-        RP_OPTIONAL
-};
-
-enum EDIT_PROPS_E
-{
-        EP_LINELEADING,
-        EP_LINEINDENT,
-        EP_ALIGNMENT,
-        EP_FONTINDEX,
-        EP_FONTSIZE,
-        EP_WORDCOLOR,
-        EP_SCRIPTTYPE,
-        EP_UNDERLINE,
-        EP_CROSSOUT,
-        EP_CHARSPACE,
-        EP_HORZSCALE,
-        EP_BOLD,
-        EP_ITALIC
-};
-
-struct CFX_Edit_LineRect
-{
-        CFX_Edit_LineRect(const CPVT_WordRange & wrLine,const CPDF_Rect & rcLine) :
-                m_wrLine(wrLine), m_rcLine(rcLine)
-        {
-        }
-
-        FX_BOOL operator != (const CFX_Edit_LineRect & linerect) const
-        {
-                return FXSYS_memcmp(this, &linerect, sizeof(CFX_Edit_LineRect)) != 0;
-        }
-
-        FX_BOOL IsSameHeight(const CFX_Edit_LineRect & linerect) const
-        {
-                return FX_EDIT_IsFloatZero((m_rcLine.top - m_rcLine.bottom) - (linerect.m_rcLine.top -linerect.m_rcLine.bottom));
-        }
-
-        FX_BOOL IsSameTop(const CFX_Edit_LineRect & linerect) const
-        {
-                return FX_EDIT_IsFloatZero(m_rcLine.top - linerect.m_rcLine.top);
-        }
-
-        FX_BOOL IsSameLeft(const CFX_Edit_LineRect & linerect) const
-        {
-                return FX_EDIT_IsFloatZero(m_rcLine.left - linerect.m_rcLine.left);
-        }
-
-        FX_BOOL IsSameRight(const CFX_Edit_LineRect & linerect) const
-        {
-                return FX_EDIT_IsFloatZero(m_rcLine.right - linerect.m_rcLine.right);
-        }
-
-        CPVT_WordRange                                                  m_wrLine;
-        CPDF_Rect                                                               m_rcLine;
-};
-
-class CFX_Edit_LineRectArray
-{
-public:
-        CFX_Edit_LineRectArray()
-        {
-        }
-
-        virtual ~CFX_Edit_LineRectArray()
-        {
-                Empty();
-        }
-
-        void Empty()
-        {
-                for (int32_t i = 0, sz = m_LineRects.GetSize(); i < sz; i++)
-                        delete m_LineRects.GetAt(i);
-
-                m_LineRects.RemoveAll();
-        }
-
-        void RemoveAll()
-        {
-                m_LineRects.RemoveAll();
-        }
-
-        void operator = (CFX_Edit_LineRectArray & rects)
-        {
-                Empty();
-                for (int32_t i = 0, sz = rects.GetSize(); i < sz; i++)
-                        m_LineRects.Add(rects.GetAt(i));
-
-                rects.RemoveAll();
-        }
-
-        void Add(const CPVT_WordRange & wrLine,const CPDF_Rect & rcLine)
-        {
-                if (CFX_Edit_LineRect * pRect = new CFX_Edit_LineRect(wrLine,rcLine))
-                        m_LineRects.Add(pRect);
-        }
-
-        int32_t GetSize() const
-        {
-                return m_LineRects.GetSize();
-        }
-
-        CFX_Edit_LineRect * GetAt(int32_t nIndex) const
-        {
-                if (nIndex < 0 || nIndex >= m_LineRects.GetSize())
-                        return NULL;
-
-                return m_LineRects.GetAt(nIndex);
-        }
-
-        CFX_ArrayTemplate<CFX_Edit_LineRect*>           m_LineRects;
-};
-
-class CFX_Edit_RectArray
-{
-public:
-        CFX_Edit_RectArray()
-        {
-        }
-
-        virtual ~CFX_Edit_RectArray()
-        {
-                Empty();
-        }
-
-        void Empty()
-        {
-                for (int32_t i = 0, sz = m_Rects.GetSize(); i < sz; i++)
-                        delete m_Rects.GetAt(i);
-
-                m_Rects.RemoveAll();
-        }
-
-        void Add(const CPDF_Rect & rect)
-        {
-                //check for overlaped area
-                for (int32_t i = 0, sz = m_Rects.GetSize(); i < sz; i++)
-                        if (CPDF_Rect * pRect = m_Rects.GetAt(i))
-                                if (pRect->Contains(rect))return;
-
-                if (CPDF_Rect * pNewRect = new CPDF_Rect(rect))
-                        m_Rects.Add(pNewRect);
-        }
-
-        int32_t GetSize() const
-        {
-                return m_Rects.GetSize();
-        }
-
-        CPDF_Rect * GetAt(int32_t nIndex) const
-        {
-                if (nIndex < 0 || nIndex >= m_Rects.GetSize())
-                        return NULL;
-
-                return m_Rects.GetAt(nIndex);
-        }
-
-        CFX_ArrayTemplate<CPDF_Rect*>                   m_Rects;
-};
-
-class CFX_Edit_Refresh
-{
-public:
-        CFX_Edit_Refresh();
-        virtual ~CFX_Edit_Refresh();
-
-        void                                                                    BeginRefresh();
-        void                                                                    Push(const CPVT_WordRange & linerange,const CPDF_Rect & rect);
-        void                                                                    NoAnalyse();
-        void                                                                    Analyse(int32_t nAlignment);
-        void                                                                    AddRefresh(const CPDF_Rect & rect);
-        const CFX_Edit_RectArray *                              GetRefreshRects() const;
-        void                                                                    EndRefresh();
-
-private:
-        CFX_Edit_LineRectArray                                  m_NewLineRects;
-        CFX_Edit_LineRectArray                                  m_OldLineRects;
-        CFX_Edit_RectArray                                              m_RefreshRects;
-};
-
+enum REFRESH_PLAN_E { RP_ANALYSE, RP_NOANALYSE, RP_OPTIONAL };
+
+enum EDIT_PROPS_E {
+  EP_LINELEADING,
+  EP_LINEINDENT,
+  EP_ALIGNMENT,
+  EP_FONTINDEX,
+  EP_FONTSIZE,
+  EP_WORDCOLOR,
+  EP_SCRIPTTYPE,
+  EP_UNDERLINE,
+  EP_CROSSOUT,
+  EP_CHARSPACE,
+  EP_HORZSCALE,
+  EP_BOLD,
+  EP_ITALIC
+};
+
+struct CFX_Edit_LineRect {
+  CFX_Edit_LineRect(const CPVT_WordRange& wrLine, const CPDF_Rect& rcLine)
+      : m_wrLine(wrLine), m_rcLine(rcLine) {}
+
+  FX_BOOL operator!=(const CFX_Edit_LineRect& linerect) const {
+    return FXSYS_memcmp(this, &linerect, sizeof(CFX_Edit_LineRect)) != 0;
+  }
+
+  FX_BOOL IsSameHeight(const CFX_Edit_LineRect& linerect) const {
+    return FX_EDIT_IsFloatZero(
+        (m_rcLine.top - m_rcLine.bottom) -
+        (linerect.m_rcLine.top - linerect.m_rcLine.bottom));
+  }
+
+  FX_BOOL IsSameTop(const CFX_Edit_LineRect& linerect) const {
+    return FX_EDIT_IsFloatZero(m_rcLine.top - linerect.m_rcLine.top);
+  }
+
+  FX_BOOL IsSameLeft(const CFX_Edit_LineRect& linerect) const {
+    return FX_EDIT_IsFloatZero(m_rcLine.left - linerect.m_rcLine.left);
+  }
+
+  FX_BOOL IsSameRight(const CFX_Edit_LineRect& linerect) const {
+    return FX_EDIT_IsFloatZero(m_rcLine.right - linerect.m_rcLine.right);
+  }
+
+  CPVT_WordRange m_wrLine;
+  CPDF_Rect m_rcLine;
+};
+
+class CFX_Edit_LineRectArray {
+ public:
+  CFX_Edit_LineRectArray() {}
+
+  virtual ~CFX_Edit_LineRectArray() { Empty(); }
+
+  void Empty() {
+    for (int32_t i = 0, sz = m_LineRects.GetSize(); i < sz; i++)
+      delete m_LineRects.GetAt(i);
+
+    m_LineRects.RemoveAll();
+  }
+
+  void RemoveAll() { m_LineRects.RemoveAll(); }
+
+  void operator=(CFX_Edit_LineRectArray& rects) {
+    Empty();
+    for (int32_t i = 0, sz = rects.GetSize(); i < sz; i++)
+      m_LineRects.Add(rects.GetAt(i));
+
+    rects.RemoveAll();
+  }
+
+  void Add(const CPVT_WordRange& wrLine, const CPDF_Rect& rcLine) {
+    if (CFX_Edit_LineRect* pRect = new CFX_Edit_LineRect(wrLine, rcLine))
+      m_LineRects.Add(pRect);
+  }
+
+  int32_t GetSize() const { return m_LineRects.GetSize(); }
+
+  CFX_Edit_LineRect* GetAt(int32_t nIndex) const {
+    if (nIndex < 0 || nIndex >= m_LineRects.GetSize())
+      return NULL;
+
+    return m_LineRects.GetAt(nIndex);
+  }
+
+  CFX_ArrayTemplate<CFX_Edit_LineRect*> m_LineRects;
+};
+
+class CFX_Edit_RectArray {
+ public:
+  CFX_Edit_RectArray() {}
+
+  virtual ~CFX_Edit_RectArray() { Empty(); }
+
+  void Empty() {
+    for (int32_t i = 0, sz = m_Rects.GetSize(); i < sz; i++)
+      delete m_Rects.GetAt(i);
+
+    m_Rects.RemoveAll();
+  }
+
+  void Add(const CPDF_Rect& rect) {
+    // check for overlaped area
+    for (int32_t i = 0, sz = m_Rects.GetSize(); i < sz; i++)
+      if (CPDF_Rect* pRect = m_Rects.GetAt(i))
+        if (pRect->Contains(rect))
+          return;
+
+    if (CPDF_Rect* pNewRect = new CPDF_Rect(rect))
+      m_Rects.Add(pNewRect);
+  }
+
+  int32_t GetSize() const { return m_Rects.GetSize(); }
+
+  CPDF_Rect* GetAt(int32_t nIndex) const {
+    if (nIndex < 0 || nIndex >= m_Rects.GetSize())
+      return NULL;
+
+    return m_Rects.GetAt(nIndex);
+  }
+
+  CFX_ArrayTemplate<CPDF_Rect*> m_Rects;
+};
+
+class CFX_Edit_Refresh {
+ public:
+  CFX_Edit_Refresh();
+  virtual ~CFX_Edit_Refresh();
+
+  void BeginRefresh();
+  void Push(const CPVT_WordRange& linerange, const CPDF_Rect& rect);
+  void NoAnalyse();
+  void Analyse(int32_t nAlignment);
+  void AddRefresh(const CPDF_Rect& rect);
+  const CFX_Edit_RectArray* GetRefreshRects() const;
+  void EndRefresh();
+
+ private:
+  CFX_Edit_LineRectArray m_NewLineRects;
+  CFX_Edit_LineRectArray m_OldLineRects;
+  CFX_Edit_RectArray m_RefreshRects;
+};
 
 /* ------------------------- CFX_Edit_Select ---------------------------- */
 
-class CFX_Edit_Select
-{
-public:
-        CFX_Edit_Select()
-        {
-        }
-
-        CFX_Edit_Select(const CPVT_WordPlace & begin,const CPVT_WordPlace & end)
-        {
-                Set(begin,end);
-        }
-
-        CFX_Edit_Select(const CPVT_WordRange & range)
-        {
-                Set(range.BeginPos,range.EndPos);
-        }
-
-        CPVT_WordRange ConvertToWordRange() const
-        {
-                return CPVT_WordRange(BeginPos, EndPos);
-        }
-
-        void Default()
-        {
-                BeginPos.Default();
-                EndPos.Default();
-        }
-
-        void Set(const CPVT_WordPlace & begin,const CPVT_WordPlace & end)
-        {
-                BeginPos = begin;
-                EndPos = end;
-        }
-
-        void SetBeginPos(const CPVT_WordPlace & begin)
-        {
-                BeginPos = begin;
-        }
-
-        void SetEndPos(const CPVT_WordPlace & end)
-        {
-                EndPos = end;
-        }
-
-        FX_BOOL IsExist() const
-        {
-                return BeginPos != EndPos;
-        }
-
-        FX_BOOL operator != (const CPVT_WordRange & wr) const
-        {
-                return wr.BeginPos != BeginPos || wr.EndPos != EndPos;
-        }
-
-        CPVT_WordPlace BeginPos,EndPos;
+class CFX_Edit_Select {
+ public:
+  CFX_Edit_Select() {}
+
+  CFX_Edit_Select(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
+    Set(begin, end);
+  }
+
+  CFX_Edit_Select(const CPVT_WordRange& range) {
+    Set(range.BeginPos, range.EndPos);
+  }
+
+  CPVT_WordRange ConvertToWordRange() const {
+    return CPVT_WordRange(BeginPos, EndPos);
+  }
+
+  void Default() {
+    BeginPos.Default();
+    EndPos.Default();
+  }
+
+  void Set(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
+    BeginPos = begin;
+    EndPos = end;
+  }
+
+  void SetBeginPos(const CPVT_WordPlace& begin) { BeginPos = begin; }
+
+  void SetEndPos(const CPVT_WordPlace& end) { EndPos = end; }
+
+  FX_BOOL IsExist() const { return BeginPos != EndPos; }
+
+  FX_BOOL operator!=(const CPVT_WordRange& wr) const {
+    return wr.BeginPos != BeginPos || wr.EndPos != EndPos;
+  }
+
+  CPVT_WordPlace BeginPos, EndPos;
 };
 
 /* ------------------------- CFX_Edit_Undo ---------------------------- */
 
-class CFX_Edit_Undo
-{
-public:
-        CFX_Edit_Undo(int32_t nBufsize = 10000);
-        virtual ~CFX_Edit_Undo();
-
-        void                                                                    Undo();
-        void                                                                    Redo();
-
-        void                                                                    AddItem(IFX_Edit_UndoItem* pItem);
-
-        FX_BOOL                                                                 CanUndo() const;
-        FX_BOOL                                                                 CanRedo() const;
-        FX_BOOL                                                                 IsModified() const;
-        FX_BOOL                                                                 IsWorking() const;
-
-        void                                                                    Reset();
-
-        IFX_Edit_UndoItem*                                              GetItem(int32_t nIndex);
-        int32_t                                                         GetItemCount(){return m_UndoItemStack.GetSize();}
-        int32_t                                                         GetCurUndoPos(){return m_nCurUndoPos;}
-
-private:
-        void                                                                    SetBufSize(int32_t nSize){m_nBufSize = nSize;}
-        int32_t                                                         GetBufSize(){return m_nBufSize;}
-
-        void                                                                    RemoveHeads();
-        void                                                                    RemoveTails();
-
-private:
-        CFX_ArrayTemplate<IFX_Edit_UndoItem*>   m_UndoItemStack;
-
-        int32_t                                                         m_nCurUndoPos;
-        int32_t                                                         m_nBufSize;
-        FX_BOOL                                                                 m_bModified;
-        FX_BOOL                                                                 m_bVirgin;
-        FX_BOOL                                                                 m_bWorking;
-};
-
-class CFX_Edit_UndoItem : public IFX_Edit_UndoItem
-{
-public:
-        CFX_Edit_UndoItem() : m_bFirst(TRUE), m_bLast(TRUE) {}
-
-        CFX_WideString GetUndoTitle() override { return L""; }
-
-        void                                                                    SetFirst(FX_BOOL bFirst){m_bFirst = bFirst;}
-        FX_BOOL                                                                 IsFirst(){return m_bFirst;}
-        void                                                                    SetLast(FX_BOOL bLast){m_bLast = bLast;}
-        FX_BOOL                                                                 IsLast(){return m_bLast;}
-
-private:
-        FX_BOOL                                                                 m_bFirst;
-        FX_BOOL                                                                 m_bLast;
-};
-
-class CFX_Edit_GroupUndoItem : public IFX_Edit_UndoItem
-{
-public:
-        CFX_Edit_GroupUndoItem(const CFX_WideString& sTitle);
-        ~CFX_Edit_GroupUndoItem() override;
-
-        void                                                    Undo() override;
-        void                                                    Redo() override;
-        CFX_WideString                                  GetUndoTitle() override;
-
-        void                                                                    AddUndoItem(CFX_Edit_UndoItem* pUndoItem);
-        void                                                                    UpdateItems();
-
-private:
-        CFX_WideString                                                  m_sTitle;
-        CFX_ArrayTemplate<CFX_Edit_UndoItem*>   m_Items;
-};
-
-/* ------------------------- CFX_Edit_UndoItem derived classes ---------------------------- */
-
-class CFXEU_InsertWord : public CFX_Edit_UndoItem
-{
-public:
-        CFXEU_InsertWord(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
-                FX_WORD word, int32_t charset, const CPVT_WordProps * pWordProps);
-        virtual ~CFXEU_InsertWord();
-
-        void                                            Redo();
-        void                                            Undo();
-
-private:
-        CFX_Edit*                                       m_pEdit;
-
-        CPVT_WordPlace                          m_wpOld;
-        CPVT_WordPlace                          m_wpNew;
-        FX_WORD                                         m_Word;
-        int32_t                                 m_nCharset;
-        CPVT_WordProps                          m_WordProps;
-};
-
-class CFXEU_InsertReturn : public CFX_Edit_UndoItem
-{
-public:
-        CFXEU_InsertReturn(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
-                                                         const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps);
-        virtual ~CFXEU_InsertReturn();
-
-        void                                            Redo();
-        void                                            Undo();
-
-private:
-        CFX_Edit *                                      m_pEdit;
-
-        CPVT_WordPlace                          m_wpOld;
-        CPVT_WordPlace                          m_wpNew;
-        CPVT_SecProps                           m_SecProps;
-        CPVT_WordProps                          m_WordProps;
-};
-
-class CFXEU_Backspace : public CFX_Edit_UndoItem
-{
-public:
-        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);
-        virtual ~CFXEU_Backspace();
-
-        void                                            Redo();
-        void                                            Undo();
-
-private:
-        CFX_Edit *                                      m_pEdit;
-
-        CPVT_WordPlace                          m_wpOld;
-        CPVT_WordPlace                          m_wpNew;
-        FX_WORD                                         m_Word;
-        int32_t                                 m_nCharset;
-        CPVT_SecProps                           m_SecProps;
-        CPVT_WordProps                          m_WordProps;
-};
-
-class CFXEU_Delete : public CFX_Edit_UndoItem
-{
-public:
-        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);
-        virtual ~CFXEU_Delete();
-
-        void                                            Redo();
-        void                                            Undo();
-
-private:
-        CFX_Edit *                                      m_pEdit;
-
-        CPVT_WordPlace                          m_wpOld;
-        CPVT_WordPlace                          m_wpNew;
-        FX_WORD                                         m_Word;
-        int32_t                                 m_nCharset;
-        CPVT_SecProps                           m_SecProps;
-        CPVT_WordProps                          m_WordProps;
-        FX_BOOL                                         m_bSecEnd;
-};
-
-class CFXEU_Clear : public CFX_Edit_UndoItem
-{
-public:
-        CFXEU_Clear(CFX_Edit * pEdit, const CPVT_WordRange & wrSel, const CFX_WideString & swText);
-        virtual ~CFXEU_Clear();
-
-        void                                            Redo();
-        void                                            Undo();
-
-private:
-        CFX_Edit*                                       m_pEdit;
-
-        CPVT_WordRange                          m_wrSel;
-        CFX_WideString                          m_swText;
-};
-
-class CFXEU_ClearRich : public CFX_Edit_UndoItem
-{
-public:
-        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);
-        virtual ~CFXEU_ClearRich();
-
-        void                                            Redo();
-        void                                            Undo();
-
-private:
-        CFX_Edit *                                      m_pEdit;
-
-        CPVT_WordPlace                          m_wpOld;
-        CPVT_WordPlace                          m_wpNew;
-        CPVT_WordRange                          m_wrSel;
-        FX_WORD                                         m_Word;
-        int32_t                                 m_nCharset;
-        CPVT_SecProps                           m_SecProps;
-        CPVT_WordProps                          m_WordProps;
-};
-
-class CFXEU_InsertText : public CFX_Edit_UndoItem
-{
-public:
-        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);
-        virtual ~CFXEU_InsertText();
-
-        void                                            Redo();
-        void                                            Undo();
-
-private:
-        CFX_Edit *                                      m_pEdit;
-
-        CPVT_WordPlace                          m_wpOld;
-        CPVT_WordPlace                          m_wpNew;
-        CFX_WideString                          m_swText;
-        int32_t                                 m_nCharset;
-        CPVT_SecProps                           m_SecProps;
-        CPVT_WordProps                          m_WordProps;
-};
-
-class CFXEU_SetSecProps : public CFX_Edit_UndoItem
-{
-public:
-        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);
-        virtual ~CFXEU_SetSecProps();
-
-        void                                            Redo();
-        void                                            Undo();
-
-private:
-        CFX_Edit *                                      m_pEdit;
-        CPVT_WordPlace                          m_wpPlace;
-        CPVT_WordRange                          m_wrPlace;
-        EDIT_PROPS_E                            m_eProps;
-
-        CPVT_SecProps                           m_OldSecProps;
-        CPVT_SecProps                           m_NewSecProps;
-        CPVT_WordProps                          m_OldWordProps;
-        CPVT_WordProps                          m_NewWordProps;
-};
-
-class CFXEU_SetWordProps : public CFX_Edit_UndoItem
-{
-public:
-        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);
-        virtual ~CFXEU_SetWordProps();
-
-        void                                            Redo();
-        void                                            Undo();
-
-private:
-        CFX_Edit *                                      m_pEdit;
-        CPVT_WordPlace                          m_wpPlace;
-        CPVT_WordRange                          m_wrPlace;
-        EDIT_PROPS_E                            m_eProps;
-
-        CPVT_WordProps                          m_OldWordProps;
-        CPVT_WordProps                          m_NewWordProps;
+class CFX_Edit_Undo {
+ public:
+  CFX_Edit_Undo(int32_t nBufsize = 10000);
+  virtual ~CFX_Edit_Undo();
+
+  void Undo();
+  void Redo();
+
+  void AddItem(IFX_Edit_UndoItem* pItem);
+
+  FX_BOOL CanUndo() const;
+  FX_BOOL CanRedo() const;
+  FX_BOOL IsModified() const;
+  FX_BOOL IsWorking() const;
+
+  void Reset();
+
+  IFX_Edit_UndoItem* GetItem(int32_t nIndex);
+  int32_t GetItemCount() { return m_UndoItemStack.GetSize(); }
+  int32_t GetCurUndoPos() { return m_nCurUndoPos; }
+
+ private:
+  void SetBufSize(int32_t nSize) { m_nBufSize = nSize; }
+  int32_t GetBufSize() { return m_nBufSize; }
+
+  void RemoveHeads();
+  void RemoveTails();
+
+ private:
+  CFX_ArrayTemplate<IFX_Edit_UndoItem*> m_UndoItemStack;
+
+  int32_t m_nCurUndoPos;
+  int32_t m_nBufSize;
+  FX_BOOL m_bModified;
+  FX_BOOL m_bVirgin;
+  FX_BOOL m_bWorking;
+};
+
+class CFX_Edit_UndoItem : public IFX_Edit_UndoItem {
+ public:
+  CFX_Edit_UndoItem() : m_bFirst(TRUE), m_bLast(TRUE) {}
+
+  CFX_WideString GetUndoTitle() override { return L""; }
+
+  void SetFirst(FX_BOOL bFirst) { m_bFirst = bFirst; }
+  FX_BOOL IsFirst() { return m_bFirst; }
+  void SetLast(FX_BOOL bLast) { m_bLast = bLast; }
+  FX_BOOL IsLast() { return m_bLast; }
+
+ private:
+  FX_BOOL m_bFirst;
+  FX_BOOL m_bLast;
+};
+
+class CFX_Edit_GroupUndoItem : public IFX_Edit_UndoItem {
+ public:
+  CFX_Edit_GroupUndoItem(const CFX_WideString& sTitle);
+  ~CFX_Edit_GroupUndoItem() override;
+
+  void Undo() override;
+  void Redo() override;
+  CFX_WideString GetUndoTitle() override;
+
+  void AddUndoItem(CFX_Edit_UndoItem* pUndoItem);
+  void UpdateItems();
+
+ private:
+  CFX_WideString m_sTitle;
+  CFX_ArrayTemplate<CFX_Edit_UndoItem*> m_Items;
+};
+
+/* ------------------------- CFX_Edit_UndoItem derived classes
+ * ---------------------------- */
+
+class CFXEU_InsertWord : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_InsertWord(CFX_Edit* pEdit,
+                   const CPVT_WordPlace& wpOldPlace,
+                   const CPVT_WordPlace& wpNewPlace,
+                   FX_WORD word,
+                   int32_t charset,
+                   const CPVT_WordProps* pWordProps);
+  virtual ~CFXEU_InsertWord();
+
+  void Redo();
+  void Undo();
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  FX_WORD m_Word;
+  int32_t m_nCharset;
+  CPVT_WordProps m_WordProps;
+};
+
+class CFXEU_InsertReturn : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_InsertReturn(CFX_Edit* pEdit,
+                     const CPVT_WordPlace& wpOldPlace,
+                     const CPVT_WordPlace& wpNewPlace,
+                     const CPVT_SecProps* pSecProps,
+                     const CPVT_WordProps* pWordProps);
+  virtual ~CFXEU_InsertReturn();
+
+  void Redo();
+  void Undo();
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  CPVT_SecProps m_SecProps;
+  CPVT_WordProps m_WordProps;
+};
+
+class CFXEU_Backspace : public CFX_Edit_UndoItem {
+ public:
+  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);
+  virtual ~CFXEU_Backspace();
+
+  void Redo();
+  void Undo();
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  FX_WORD m_Word;
+  int32_t m_nCharset;
+  CPVT_SecProps m_SecProps;
+  CPVT_WordProps m_WordProps;
+};
+
+class CFXEU_Delete : public CFX_Edit_UndoItem {
+ public:
+  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);
+  virtual ~CFXEU_Delete();
+
+  void Redo();
+  void Undo();
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  FX_WORD m_Word;
+  int32_t m_nCharset;
+  CPVT_SecProps m_SecProps;
+  CPVT_WordProps m_WordProps;
+  FX_BOOL m_bSecEnd;
+};
+
+class CFXEU_Clear : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_Clear(CFX_Edit* pEdit,
+              const CPVT_WordRange& wrSel,
+              const CFX_WideString& swText);
+  virtual ~CFXEU_Clear();
+
+  void Redo();
+  void Undo();
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordRange m_wrSel;
+  CFX_WideString m_swText;
+};
+
+class CFXEU_ClearRich : public CFX_Edit_UndoItem {
+ public:
+  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);
+  virtual ~CFXEU_ClearRich();
+
+  void Redo();
+  void Undo();
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  CPVT_WordRange m_wrSel;
+  FX_WORD m_Word;
+  int32_t m_nCharset;
+  CPVT_SecProps m_SecProps;
+  CPVT_WordProps m_WordProps;
+};
+
+class CFXEU_InsertText : public CFX_Edit_UndoItem {
+ public:
+  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);
+  virtual ~CFXEU_InsertText();
+
+  void Redo();
+  void Undo();
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  CFX_WideString m_swText;
+  int32_t m_nCharset;
+  CPVT_SecProps m_SecProps;
+  CPVT_WordProps m_WordProps;
+};
+
+class CFXEU_SetSecProps : public CFX_Edit_UndoItem {
+ public:
+  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);
+  virtual ~CFXEU_SetSecProps();
+
+  void Redo();
+  void Undo();
+
+ private:
+  CFX_Edit* m_pEdit;
+  CPVT_WordPlace m_wpPlace;
+  CPVT_WordRange m_wrPlace;
+  EDIT_PROPS_E m_eProps;
+
+  CPVT_SecProps m_OldSecProps;
+  CPVT_SecProps m_NewSecProps;
+  CPVT_WordProps m_OldWordProps;
+  CPVT_WordProps m_NewWordProps;
+};
+
+class CFXEU_SetWordProps : public CFX_Edit_UndoItem {
+ public:
+  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);
+  virtual ~CFXEU_SetWordProps();
+
+  void Redo();
+  void Undo();
+
+ private:
+  CFX_Edit* m_pEdit;
+  CPVT_WordPlace m_wpPlace;
+  CPVT_WordRange m_wrPlace;
+  EDIT_PROPS_E m_eProps;
+
+  CPVT_WordProps m_OldWordProps;
+  CPVT_WordProps m_NewWordProps;
 };
 
 /* ------------------------- CFX_Edit ---------------------------- */
 
-class CFX_Edit : public IFX_Edit
-{
-        friend class CFX_Edit_Iterator;
-        friend class CFXEU_InsertWord;
-        friend class CFXEU_InsertReturn;
-        friend class CFXEU_Backspace;
-        friend class CFXEU_Delete;
-        friend class CFXEU_Clear;
-        friend class CFXEU_ClearRich;
-        friend class CFXEU_SetSecProps;
-        friend class CFXEU_SetWordProps;
-        friend class CFXEU_InsertText;
-
-public:
-        CFX_Edit(IPDF_VariableText * pVT);
-        virtual ~CFX_Edit();
-
-        void                                                                    SetFontMap(IFX_Edit_FontMap * pFontMap);
-        void                                                                    SetVTProvider(IPDF_VariableText_Provider* pProvider);
-        void                                                                    SetNotify(IFX_Edit_Notify * pNotify);
-        void                                                                    SetOprNotify(IFX_Edit_OprNotify* pOprNotify);
-        IFX_Edit_Iterator*                                              GetIterator();
-        IPDF_VariableText *                                             GetVariableText();
-        IFX_Edit_FontMap*                                               GetFontMap();
-
-        void                                                                    Initialize();
-        void                                                                    SetPlateRect(const CPDF_Rect & rect, FX_BOOL bPaint = TRUE);
-        void                                                                    SetScrollPos(const CPDF_Point & point);
-
-        void                                                                    SetAlignmentH(int32_t nFormat = 0, FX_BOOL bPaint = TRUE);
-        void                                                                    SetAlignmentV(int32_t nFormat = 0, FX_BOOL bPaint = TRUE);
-        void                                                                    SetPasswordChar(FX_WORD wSubWord = '*', FX_BOOL bPaint = TRUE);
-        void                                                                    SetLimitChar(int32_t nLimitChar = 0, FX_BOOL bPaint = TRUE);
-        void                                                                    SetCharArray(int32_t nCharArray = 0, FX_BOOL bPaint = TRUE);
-        void                                                                    SetCharSpace(FX_FLOAT fCharSpace = 0.0f, FX_BOOL bPaint = TRUE);
-        void                                                                    SetHorzScale(int32_t nHorzScale = 100, FX_BOOL bPaint = TRUE);
-        void                                                                    SetLineLeading(FX_FLOAT fLineLeading, FX_BOOL bPaint = TRUE);
-        void                                                                    SetMultiLine(FX_BOOL bMultiLine = TRUE, FX_BOOL bPaint = TRUE);
-        void                                                                    SetAutoReturn(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE);
-        void                                                                    SetAutoFontSize(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE);
-        void                                                                    SetAutoScroll(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE);
-        void                                                                    SetFontSize(FX_FLOAT fFontSize, FX_BOOL bPaint = TRUE);
-        void                                                                    SetTextOverflow(FX_BOOL bAllowed = FALSE, FX_BOOL bPaint = TRUE);
-
-        FX_BOOL                                                                 IsRichText() const;
-        void                                                                    SetRichText(FX_BOOL bRichText = TRUE, FX_BOOL bPaint = TRUE);
-        FX_BOOL                                                                 SetRichFontSize(FX_FLOAT fFontSize);
-        FX_BOOL                                                                 SetRichFontIndex(int32_t nFontIndex);
-        FX_BOOL                                                                 SetRichTextColor(FX_COLORREF dwColor);
-        FX_BOOL                                                                 SetRichTextScript(int32_t nScriptType);
-        FX_BOOL                                                                 SetRichTextBold(FX_BOOL bBold = TRUE);
-        FX_BOOL                                                                 SetRichTextItalic(FX_BOOL bItalic = TRUE);
-        FX_BOOL                                                                 SetRichTextUnderline(FX_BOOL bUnderline = TRUE);
-        FX_BOOL                                                                 SetRichTextCrossout(FX_BOOL bCrossout = TRUE);
-        FX_BOOL                                                                 SetRichTextCharSpace(FX_FLOAT fCharSpace);
-        FX_BOOL                                                                 SetRichTextHorzScale(int32_t nHorzScale = 100);
-        FX_BOOL                                                                 SetRichTextLineLeading(FX_FLOAT fLineLeading);
-        FX_BOOL                                                                 SetRichTextLineIndent(FX_FLOAT fLineIndent);
-        FX_BOOL                                                                 SetRichTextAlignment(int32_t nAlignment);
-
-        void                                                                    OnMouseDown(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl);
-        void                                                                    OnMouseMove(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl);
-        void                                                                    OnVK_UP(FX_BOOL bShift,FX_BOOL bCtrl);
-        void                                                                    OnVK_DOWN(FX_BOOL bShift,FX_BOOL bCtrl);
-        void                                                                    OnVK_LEFT(FX_BOOL bShift,FX_BOOL bCtrl);
-        void                                                                    OnVK_RIGHT(FX_BOOL bShift,FX_BOOL bCtrl);
-        void                                                                    OnVK_HOME(FX_BOOL bShift,FX_BOOL bCtrl);
-        void                                                                    OnVK_END(FX_BOOL bShift,FX_BOOL bCtrl);
-
-        void                                                                    SetText(const FX_WCHAR* text,int32_t charset = DEFAULT_CHARSET,
-                                                                                                        const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL);
-        FX_BOOL                                                                 InsertWord(FX_WORD word, int32_t charset = DEFAULT_CHARSET, const CPVT_WordProps * pWordProps = NULL);
-        FX_BOOL                                                                 InsertReturn(const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL);
-        FX_BOOL                                                                 Backspace();
-        FX_BOOL                                                                 Delete();
-        FX_BOOL                                                                 Clear();
-        FX_BOOL                                                                 Empty();
-        FX_BOOL                                                                 InsertText(const FX_WCHAR* text, int32_t charset = DEFAULT_CHARSET,
-                                                                                                        const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL);
-        FX_BOOL                                                                 Redo();
-        FX_BOOL                                                                 Undo();
-        CPVT_WordPlace                                                  DoInsertText(const CPVT_WordPlace& place, const FX_WCHAR* text, int32_t charset,
-                                                                                                const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps);
-        int32_t                                                         GetCharSetFromUnicode(FX_WORD word, int32_t nOldCharset);
-
-        int32_t                                                         WordPlaceToWordIndex(const CPVT_WordPlace & place) const;
-        CPVT_WordPlace                                                  WordIndexToWordPlace(int32_t index) const;
-
-        CPVT_WordPlace                                                  GetLineBeginPlace(const CPVT_WordPlace & place) const;
-        CPVT_WordPlace                                                  GetLineEndPlace(const CPVT_WordPlace & place) const;
-        CPVT_WordPlace                                                  GetSectionBeginPlace(const CPVT_WordPlace & place) const;
-        CPVT_WordPlace                                                  GetSectionEndPlace(const CPVT_WordPlace & place) const;
-        CPVT_WordPlace                                                  SearchWordPlace(const CPDF_Point& point) const;
-
-        int32_t                                                         GetCaret() const;
-        CPVT_WordPlace                                                  GetCaretWordPlace() const;
-        CFX_WideString                                                  GetSelText() const;
-        CFX_WideString                                                  GetText() const;
-        FX_FLOAT                                                                GetFontSize() const;
-        FX_WORD                                                                 GetPasswordChar() const;
-        CPDF_Point                                                              GetScrollPos() const;
-        int32_t                                                         GetCharArray() const;
-        CPDF_Rect                                                               GetPlateRect() const;
-        CPDF_Rect                                                               GetContentRect() const;
-        CFX_WideString                                                  GetRangeText(const CPVT_WordRange & range) const;
-        int32_t                                                         GetHorzScale() const;
-        FX_FLOAT                                                                GetCharSpace() const;
-        int32_t                                                         GetTotalWords() const;
-        int32_t                                                         GetTotalLines() const;
-
-        void                                                                    SetSel(int32_t nStartChar,int32_t nEndChar);
-        void                                                                    GetSel(int32_t & nStartChar, int32_t & nEndChar) const;
-
-private:
-        void                                                                    SelectAll();
-        void                                                                    SelectNone();
-        void                                                                    SetSel(const CPVT_WordPlace & begin,const CPVT_WordPlace & end);
-        FX_BOOL                                                                 IsSelected() const;
-
-        void                                                                    RearrangeAll();
-        void                                                                    RearrangePart(const CPVT_WordRange & range);
-        void                                                                    Paint();
-        void                                                                    ScrollToCaret();
-        void                                                                    SetScrollInfo();
-        void                                                                    SetScrollPosX(FX_FLOAT fx);
-        void                                                                    SetScrollPosY(FX_FLOAT fy);
-        void                                                                    SetScrollLimit();
-        void                                                                    SetContentChanged();
-        void                                                                    EnableNotify(FX_BOOL bNotify);
-
-        void                                                                    SetText(const FX_WCHAR* text,int32_t charset,
-                                                                                                        const CPVT_SecProps * pSecProps,const CPVT_WordProps * pWordProps,FX_BOOL bAddUndo, FX_BOOL bPaint);
-        FX_BOOL                                                                 InsertWord(FX_WORD word, int32_t charset, const CPVT_WordProps * pWordProps,FX_BOOL bAddUndo, FX_BOOL bPaint);
-        FX_BOOL                                                                 InsertReturn(const CPVT_SecProps * pSecProps,const CPVT_WordProps * pWordProps,FX_BOOL bAddUndo, FX_BOOL bPaint);
-        FX_BOOL                                                                 Backspace(FX_BOOL bAddUndo, FX_BOOL bPaint);
-        FX_BOOL                                                                 Delete(FX_BOOL bAddUndo, FX_BOOL bPaint);
-        FX_BOOL                                                                 Clear(FX_BOOL bAddUndo, FX_BOOL bPaint);
-        FX_BOOL                                                                 InsertText(const FX_WCHAR* text, int32_t charset,
-                                                                                                const CPVT_SecProps * pSecProps,const CPVT_WordProps * pWordProps,FX_BOOL bAddUndo, FX_BOOL bPaint);
-        FX_BOOL                                                                 SetRichTextProps(EDIT_PROPS_E eProps,
-                                                                                                const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps);
-        FX_BOOL                                                                 SetSecProps(EDIT_PROPS_E eProps, const CPVT_WordPlace & place,
-                                                                                                const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps, const CPVT_WordRange & wr, FX_BOOL bAddUndo);
-        FX_BOOL                                                                 SetWordProps(EDIT_PROPS_E eProps, const CPVT_WordPlace & place,
-                                                                                                const CPVT_WordProps * pWordProps, const CPVT_WordRange & wr, FX_BOOL bAddUndo);
-        void                                                                    PaintSetProps(EDIT_PROPS_E eProps, const CPVT_WordRange & wr);
-        void                                                                    PaintInsertText(const CPVT_WordPlace & wpOld, const CPVT_WordPlace & wpNew);
-
-        inline CPDF_Point                                               VTToEdit(const CPDF_Point & point) const;
-        inline CPDF_Point                                               EditToVT(const CPDF_Point & point) const;
-        inline CPDF_Rect                                                VTToEdit(const CPDF_Rect & rect) const;
-        inline CPDF_Rect                                                EditToVT(const CPDF_Rect & rect) const;
-
-        void                                                                    EnableRefresh(FX_BOOL bRefresh);
-        void                                                                    Refresh(REFRESH_PLAN_E ePlan,const CPVT_WordRange * pRange1 = NULL,const CPVT_WordRange * pRange2 = NULL);
-        void                                                                    RefreshPushLineRects(const CPVT_WordRange & wr);
-        void                                                                    RefreshPushRandomRects(const CPVT_WordRange & wr);
-        void                                                                    RefreshWordRange(const CPVT_WordRange& wr);
-
-        void                                                                    SetCaret(int32_t nPos);
-        void                                                                    SetCaret(const CPVT_WordPlace & place);
-        void                                                                    SetCaretInfo();
-        void                                                                    SetCaretOrigin();
-        void                                                                    SetCaretChange();
-
-        CPVT_WordRange                                                  GetWholeWordRange() const;
-        CPVT_WordRange                                                  GetVisibleWordRange() const;
-        CPVT_WordRange                                                  GetLatinWordsRange(const CPVT_WordPlace & place) const;
-        CPVT_WordRange                                                  CombineWordRange(const CPVT_WordRange & wr1, const CPVT_WordRange & wr2);
-        CPVT_WordRange                                                  GetSelectWordRange() const;
-
-        void                                                                    EnableUndo(FX_BOOL bUndo);
-        void                                                                    EnableOprNotify(FX_BOOL bNotify);
-
-        FX_BOOL                                                                 IsTextFull() const;
-        FX_BOOL                                                                 IsTextOverflow() const;
-        FX_BOOL                                                                 CanUndo() const;
-        FX_BOOL                                                                 CanRedo() const;
-        FX_BOOL                                                                 IsModified() const;
-
-        void                                                                    BeginGroupUndo(const CFX_WideString& sTitle);
-        void                                                                    EndGroupUndo();
-        void                                                                    AddEditUndoItem(CFX_Edit_UndoItem* pEditUndoItem);
-        void                                                                    AddUndoItem(IFX_Edit_UndoItem* pUndoItem);
-
-        void                                                                    SetPageInfo(const CPVT_WordPlace& place);
-        CPVT_WordPlace                                                  SearchPageEndPlace(const CPVT_WordPlace& wpPageBegin, const CPDF_Point& point) const;
-        FX_FLOAT                                                                GetLineTop(const CPVT_WordPlace& place) const;
-        FX_FLOAT                                                                GetLineBottom(const CPVT_WordPlace& place) const;
-
-private:
-        IPDF_VariableText*                                              m_pVT;
-        IFX_Edit_Notify*                                                m_pNotify;
-        IFX_Edit_OprNotify*                                             m_pOprNotify;
-        CFX_Edit_Provider*                                              m_pVTProvide;
-
-        CPVT_WordPlace                                                  m_wpCaret;
-        CPVT_WordPlace                                                  m_wpOldCaret;
-        CFX_Edit_Select                                                 m_SelState;
-
-        CPDF_Point                                                              m_ptScrollPos;
-        CPDF_Point                                                              m_ptRefreshScrollPos;
-        FX_BOOL                                                                 m_bEnableScroll;
-        IFX_Edit_Iterator *                                             m_pIterator;
-        CFX_Edit_Refresh                                                m_Refresh;
-        CPDF_Point                                                              m_ptCaret;
-        CFX_Edit_Undo                                                   m_Undo;
-        int32_t                                                         m_nAlignment;
-        FX_BOOL                                                                 m_bNotifyFlag;
-        FX_BOOL                                                                 m_bEnableOverflow;
-        FX_BOOL                                                                 m_bEnableRefresh;
-        CPDF_Rect                                                               m_rcOldContent;
-        FX_BOOL                                                                 m_bEnableUndo;
-        FX_BOOL                                                                 m_bNotify;
-        FX_BOOL                                                                 m_bOprNotify;
-        CFX_Edit_GroupUndoItem*                                 m_pGroupUndoItem;
+class CFX_Edit : public IFX_Edit {
+  friend class CFX_Edit_Iterator;
+  friend class CFXEU_InsertWord;
+  friend class CFXEU_InsertReturn;
+  friend class CFXEU_Backspace;
+  friend class CFXEU_Delete;
+  friend class CFXEU_Clear;
+  friend class CFXEU_ClearRich;
+  friend class CFXEU_SetSecProps;
+  friend class CFXEU_SetWordProps;
+  friend class CFXEU_InsertText;
+
+ public:
+  CFX_Edit(IPDF_VariableText* pVT);
+  virtual ~CFX_Edit();
+
+  void SetFontMap(IFX_Edit_FontMap* pFontMap);
+  void SetVTProvider(IPDF_VariableText_Provider* pProvider);
+  void SetNotify(IFX_Edit_Notify* pNotify);
+  void SetOprNotify(IFX_Edit_OprNotify* pOprNotify);
+  IFX_Edit_Iterator* GetIterator();
+  IPDF_VariableText* GetVariableText();
+  IFX_Edit_FontMap* GetFontMap();
+
+  void Initialize();
+  void SetPlateRect(const CPDF_Rect& rect, FX_BOOL bPaint = TRUE);
+  void SetScrollPos(const CPDF_Point& point);
+
+  void SetAlignmentH(int32_t nFormat = 0, FX_BOOL bPaint = TRUE);
+  void SetAlignmentV(int32_t nFormat = 0, FX_BOOL bPaint = TRUE);
+  void SetPasswordChar(FX_WORD wSubWord = '*', FX_BOOL bPaint = TRUE);
+  void SetLimitChar(int32_t nLimitChar = 0, FX_BOOL bPaint = TRUE);
+  void SetCharArray(int32_t nCharArray = 0, FX_BOOL bPaint = TRUE);
+  void SetCharSpace(FX_FLOAT fCharSpace = 0.0f, FX_BOOL bPaint = TRUE);
+  void SetHorzScale(int32_t nHorzScale = 100, FX_BOOL bPaint = TRUE);
+  void SetLineLeading(FX_FLOAT fLineLeading, FX_BOOL bPaint = TRUE);
+  void SetMultiLine(FX_BOOL bMultiLine = TRUE, FX_BOOL bPaint = TRUE);
+  void SetAutoReturn(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE);
+  void SetAutoFontSize(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE);
+  void SetAutoScroll(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE);
+  void SetFontSize(FX_FLOAT fFontSize, FX_BOOL bPaint = TRUE);
+  void SetTextOverflow(FX_BOOL bAllowed = FALSE, FX_BOOL bPaint = TRUE);
+
+  FX_BOOL IsRichText() const;
+  void SetRichText(FX_BOOL bRichText = TRUE, FX_BOOL bPaint = TRUE);
+  FX_BOOL SetRichFontSize(FX_FLOAT fFontSize);
+  FX_BOOL SetRichFontIndex(int32_t nFontIndex);
+  FX_BOOL SetRichTextColor(FX_COLORREF dwColor);
+  FX_BOOL SetRichTextScript(int32_t nScriptType);
+  FX_BOOL SetRichTextBold(FX_BOOL bBold = TRUE);
+  FX_BOOL SetRichTextItalic(FX_BOOL bItalic = TRUE);
+  FX_BOOL SetRichTextUnderline(FX_BOOL bUnderline = TRUE);
+  FX_BOOL SetRichTextCrossout(FX_BOOL bCrossout = TRUE);
+  FX_BOOL SetRichTextCharSpace(FX_FLOAT fCharSpace);
+  FX_BOOL SetRichTextHorzScale(int32_t nHorzScale = 100);
+  FX_BOOL SetRichTextLineLeading(FX_FLOAT fLineLeading);
+  FX_BOOL SetRichTextLineIndent(FX_FLOAT fLineIndent);
+  FX_BOOL SetRichTextAlignment(int32_t nAlignment);
+
+  void OnMouseDown(const CPDF_Point& point, FX_BOOL bShift, FX_BOOL bCtrl);
+  void OnMouseMove(const CPDF_Point& point, FX_BOOL bShift, FX_BOOL bCtrl);
+  void OnVK_UP(FX_BOOL bShift, FX_BOOL bCtrl);
+  void OnVK_DOWN(FX_BOOL bShift, FX_BOOL bCtrl);
+  void OnVK_LEFT(FX_BOOL bShift, FX_BOOL bCtrl);
+  void OnVK_RIGHT(FX_BOOL bShift, FX_BOOL bCtrl);
+  void OnVK_HOME(FX_BOOL bShift, FX_BOOL bCtrl);
+  void OnVK_END(FX_BOOL bShift, FX_BOOL bCtrl);
+
+  void SetText(const FX_WCHAR* text,
+               int32_t charset = DEFAULT_CHARSET,
+               const CPVT_SecProps* pSecProps = NULL,
+               const CPVT_WordProps* pWordProps = NULL);
+  FX_BOOL InsertWord(FX_WORD word,
+                     int32_t charset = DEFAULT_CHARSET,
+                     const CPVT_WordProps* pWordProps = NULL);
+  FX_BOOL InsertReturn(const CPVT_SecProps* pSecProps = NULL,
+                       const CPVT_WordProps* pWordProps = NULL);
+  FX_BOOL Backspace();
+  FX_BOOL Delete();
+  FX_BOOL Clear();
+  FX_BOOL Empty();
+  FX_BOOL InsertText(const FX_WCHAR* text,
+                     int32_t charset = DEFAULT_CHARSET,
+                     const CPVT_SecProps* pSecProps = NULL,
+                     const CPVT_WordProps* pWordProps = NULL);
+  FX_BOOL Redo();
+  FX_BOOL Undo();
+  CPVT_WordPlace DoInsertText(const CPVT_WordPlace& place,
+                              const FX_WCHAR* text,
+                              int32_t charset,
+                              const CPVT_SecProps* pSecProps,
+                              const CPVT_WordProps* pWordProps);
+  int32_t GetCharSetFromUnicode(FX_WORD word, int32_t nOldCharset);
+
+  int32_t WordPlaceToWordIndex(const CPVT_WordPlace& place) const;
+  CPVT_WordPlace WordIndexToWordPlace(int32_t index) const;
+
+  CPVT_WordPlace GetLineBeginPlace(const CPVT_WordPlace& place) const;
+  CPVT_WordPlace GetLineEndPlace(const CPVT_WordPlace& place) const;
+  CPVT_WordPlace GetSectionBeginPlace(const CPVT_WordPlace& place) const;
+  CPVT_WordPlace GetSectionEndPlace(const CPVT_WordPlace& place) const;
+  CPVT_WordPlace SearchWordPlace(const CPDF_Point& point) const;
+
+  int32_t GetCaret() const;
+  CPVT_WordPlace GetCaretWordPlace() const;
+  CFX_WideString GetSelText() const;
+  CFX_WideString GetText() const;
+  FX_FLOAT GetFontSize() const;
+  FX_WORD GetPasswordChar() const;
+  CPDF_Point GetScrollPos() const;
+  int32_t GetCharArray() const;
+  CPDF_Rect GetPlateRect() const;
+  CPDF_Rect GetContentRect() const;
+  CFX_WideString GetRangeText(const CPVT_WordRange& range) const;
+  int32_t GetHorzScale() const;
+  FX_FLOAT GetCharSpace() const;
+  int32_t GetTotalWords() const;
+  int32_t GetTotalLines() const;
+
+  void SetSel(int32_t nStartChar, int32_t nEndChar);
+  void GetSel(int32_t& nStartChar, int32_t& nEndChar) const;
+
+ private:
+  void SelectAll();
+  void SelectNone();
+  void SetSel(const CPVT_WordPlace& begin, const CPVT_WordPlace& end);
+  FX_BOOL IsSelected() const;
+
+  void RearrangeAll();
+  void RearrangePart(const CPVT_WordRange& range);
+  void Paint();
+  void ScrollToCaret();
+  void SetScrollInfo();
+  void SetScrollPosX(FX_FLOAT fx);
+  void SetScrollPosY(FX_FLOAT fy);
+  void SetScrollLimit();
+  void SetContentChanged();
+  void EnableNotify(FX_BOOL bNotify);
+
+  void SetText(const FX_WCHAR* text,
+               int32_t charset,
+               const CPVT_SecProps* pSecProps,
+               const CPVT_WordProps* pWordProps,
+               FX_BOOL bAddUndo,
+               FX_BOOL bPaint);
+  FX_BOOL InsertWord(FX_WORD word,
+                     int32_t charset,
+                     const CPVT_WordProps* pWordProps,
+                     FX_BOOL bAddUndo,
+                     FX_BOOL bPaint);
+  FX_BOOL InsertReturn(const CPVT_SecProps* pSecProps,
+                       const CPVT_WordProps* pWordProps,
+                       FX_BOOL bAddUndo,
+                       FX_BOOL bPaint);
+  FX_BOOL Backspace(FX_BOOL bAddUndo, FX_BOOL bPaint);
+  FX_BOOL Delete(FX_BOOL bAddUndo, FX_BOOL bPaint);
+  FX_BOOL Clear(FX_BOOL bAddUndo, FX_BOOL bPaint);
+  FX_BOOL InsertText(const FX_WCHAR* text,
+                     int32_t charset,
+                     const CPVT_SecProps* pSecProps,
+                     const CPVT_WordProps* pWordProps,
+                     FX_BOOL bAddUndo,
+                     FX_BOOL bPaint);
+  FX_BOOL SetRichTextProps(EDIT_PROPS_E eProps,
+                           const CPVT_SecProps* pSecProps,
+                           const CPVT_WordProps* pWordProps);
+  FX_BOOL SetSecProps(EDIT_PROPS_E eProps,
+                      const CPVT_WordPlace& place,
+                      const CPVT_SecProps* pSecProps,
+                      const CPVT_WordProps* pWordProps,
+                      const CPVT_WordRange& wr,
+                      FX_BOOL bAddUndo);
+  FX_BOOL SetWordProps(EDIT_PROPS_E eProps,
+                       const CPVT_WordPlace& place,
+                       const CPVT_WordProps* pWordProps,
+                       const CPVT_WordRange& wr,
+                       FX_BOOL bAddUndo);
+  void PaintSetProps(EDIT_PROPS_E eProps, const CPVT_WordRange& wr);
+  void PaintInsertText(const CPVT_WordPlace& wpOld,
+                       const CPVT_WordPlace& wpNew);
+
+  inline CPDF_Point VTToEdit(const CPDF_Point& point) const;
+  inline CPDF_Point EditToVT(const CPDF_Point& point) const;
+  inline CPDF_Rect VTToEdit(const CPDF_Rect& rect) const;
+  inline CPDF_Rect EditToVT(const CPDF_Rect& rect) const;
+
+  void EnableRefresh(FX_BOOL bRefresh);
+  void Refresh(REFRESH_PLAN_E ePlan,
+               const CPVT_WordRange* pRange1 = NULL,
+               const CPVT_WordRange* pRange2 = NULL);
+  void RefreshPushLineRects(const CPVT_WordRange& wr);
+  void RefreshPushRandomRects(const CPVT_WordRange& wr);
+  void RefreshWordRange(const CPVT_WordRange& wr);
+
+  void SetCaret(int32_t nPos);
+  void SetCaret(const CPVT_WordPlace& place);
+  void SetCaretInfo();
+  void SetCaretOrigin();
+  void SetCaretChange();
+
+  CPVT_WordRange GetWholeWordRange() const;
+  CPVT_WordRange GetVisibleWordRange() const;
+  CPVT_WordRange GetLatinWordsRange(const CPVT_WordPlace& place) const;
+  CPVT_WordRange CombineWordRange(const CPVT_WordRange& wr1,
+                                  const CPVT_WordRange& wr2);
+  CPVT_WordRange GetSelectWordRange() const;
+
+  void EnableUndo(FX_BOOL bUndo);
+  void EnableOprNotify(FX_BOOL bNotify);
+
+  FX_BOOL IsTextFull() const;
+  FX_BOOL IsTextOverflow() const;
+  FX_BOOL CanUndo() const;
+  FX_BOOL CanRedo() const;
+  FX_BOOL IsModified() const;
+
+  void BeginGroupUndo(const CFX_WideString& sTitle);
+  void EndGroupUndo();
+  void AddEditUndoItem(CFX_Edit_UndoItem* pEditUndoItem);
+  void AddUndoItem(IFX_Edit_UndoItem* pUndoItem);
+
+  void SetPageInfo(const CPVT_WordPlace& place);
+  CPVT_WordPlace SearchPageEndPlace(const CPVT_WordPlace& wpPageBegin,
+                                    const CPDF_Point& point) const;
+  FX_FLOAT GetLineTop(const CPVT_WordPlace& place) const;
+  FX_FLOAT GetLineBottom(const CPVT_WordPlace& place) const;
+
+ private:
+  IPDF_VariableText* m_pVT;
+  IFX_Edit_Notify* m_pNotify;
+  IFX_Edit_OprNotify* m_pOprNotify;
+  CFX_Edit_Provider* m_pVTProvide;
+
+  CPVT_WordPlace m_wpCaret;
+  CPVT_WordPlace m_wpOldCaret;
+  CFX_Edit_Select m_SelState;
+
+  CPDF_Point m_ptScrollPos;
+  CPDF_Point m_ptRefreshScrollPos;
+  FX_BOOL m_bEnableScroll;
+  IFX_Edit_Iterator* m_pIterator;
+  CFX_Edit_Refresh m_Refresh;
+  CPDF_Point m_ptCaret;
+  CFX_Edit_Undo m_Undo;
+  int32_t m_nAlignment;
+  FX_BOOL m_bNotifyFlag;
+  FX_BOOL m_bEnableOverflow;
+  FX_BOOL m_bEnableRefresh;
+  CPDF_Rect m_rcOldContent;
+  FX_BOOL m_bEnableUndo;
+  FX_BOOL m_bNotify;
+  FX_BOOL m_bOprNotify;
+  CFX_Edit_GroupUndoItem* m_pGroupUndoItem;
 };
 
 /* ------------------------- CFX_Edit_Iterator ---------------------------- */
 
-class CFX_Edit_Iterator : public IFX_Edit_Iterator
-{
-public:
-        CFX_Edit_Iterator(CFX_Edit * pEdit,IPDF_VariableText_Iterator * pVTIterator);
-        virtual ~CFX_Edit_Iterator();
-
-        FX_BOOL                                                                 NextWord();
-        FX_BOOL                                                                 NextLine();
-        FX_BOOL                                                                 NextSection();
-        FX_BOOL                                                                 PrevWord();
-        FX_BOOL                                                                 PrevLine();
-        FX_BOOL                                                                 PrevSection();
-
-        FX_BOOL                                                                 GetWord(CPVT_Word & word) const;
-        FX_BOOL                                                                 GetLine(CPVT_Line & line) const;
-        FX_BOOL                                                                 GetSection(CPVT_Section & section) const;
-        void                                                                    SetAt(int32_t nWordIndex);
-        void                                                                    SetAt(const CPVT_WordPlace & place);
-        const CPVT_WordPlace &                                  GetAt() const;
-        IFX_Edit*                                                               GetEdit() const;
-
-private:
-        CFX_Edit *                                                              m_pEdit;
-        IPDF_VariableText_Iterator*                             m_pVTIterator;
-};
-
-class CFX_Edit_Provider : public IPDF_VariableText_Provider
-{
-public:
-        CFX_Edit_Provider(IFX_Edit_FontMap* pFontMap);
-        virtual ~CFX_Edit_Provider();
-
-        IFX_Edit_FontMap*                       GetFontMap();
-
-        int32_t                                 GetCharWidth(int32_t nFontIndex, FX_WORD word, int32_t nWordStyle);
-        int32_t                                 GetTypeAscent(int32_t nFontIndex);
-        int32_t                                 GetTypeDescent(int32_t nFontIndex);
-        int32_t                                 GetWordFontIndex(FX_WORD word, int32_t charset, int32_t nFontIndex);
-        int32_t                                 GetDefaultFontIndex();
-        FX_BOOL                                         IsLatinWord(FX_WORD word);
-
-private:
-        IFX_Edit_FontMap*                       m_pFontMap;
+class CFX_Edit_Iterator : public IFX_Edit_Iterator {
+ public:
+  CFX_Edit_Iterator(CFX_Edit* pEdit, IPDF_VariableText_Iterator* pVTIterator);
+  virtual ~CFX_Edit_Iterator();
+
+  FX_BOOL NextWord();
+  FX_BOOL NextLine();
+  FX_BOOL NextSection();
+  FX_BOOL PrevWord();
+  FX_BOOL PrevLine();
+  FX_BOOL PrevSection();
+
+  FX_BOOL GetWord(CPVT_Word& word) const;
+  FX_BOOL GetLine(CPVT_Line& line) const;
+  FX_BOOL GetSection(CPVT_Section& section) const;
+  void SetAt(int32_t nWordIndex);
+  void SetAt(const CPVT_WordPlace& place);
+  const CPVT_WordPlace& GetAt() const;
+  IFX_Edit* GetEdit() const;
+
+ private:
+  CFX_Edit* m_pEdit;
+  IPDF_VariableText_Iterator* m_pVTIterator;
+};
+
+class CFX_Edit_Provider : public IPDF_VariableText_Provider {
+ public:
+  CFX_Edit_Provider(IFX_Edit_FontMap* pFontMap);
+  virtual ~CFX_Edit_Provider();
+
+  IFX_Edit_FontMap* GetFontMap();
+
+  int32_t GetCharWidth(int32_t nFontIndex, FX_WORD word, int32_t nWordStyle);
+  int32_t GetTypeAscent(int32_t nFontIndex);
+  int32_t GetTypeDescent(int32_t nFontIndex);
+  int32_t GetWordFontIndex(FX_WORD word, int32_t charset, int32_t nFontIndex);
+  int32_t GetDefaultFontIndex();
+  FX_BOOL IsLatinWord(FX_WORD word);
+
+ private:
+  IFX_Edit_FontMap* m_pFontMap;
 };
 
 #endif  // FPDFSDK_INCLUDE_FXEDIT_FXET_EDIT_H_