XFA: clang-format all pdfium code.

No behavior change.

Generated by:
  find . -name '*.cpp' -o -name '*.h' | \
  grep -E -v 'third_party|thirdparties|lpng_v163|tiff_v403' | \
  xargs ../../buildtools/mac/clang-format -i
Then manually merged https://codereview.chromium.org/1269223002/

See thread "tabs vs spaces" on pdfium@googlegroups.com for discussion.

BUG=none

1 files changed, 718 insertions, 712 deletions

diff --git a/fpdfsdk/include/fxedit/fxet_edit.h b/fpdfsdk/include/fxedit/fxet_edit.h
index 7a2742f0ee..d654ebc451 100644
--- a/fpdfsdk/include/fxedit/fxet_edit.h
+++ b/fpdfsdk/include/fxedit/fxet_edit.h
@@ -23,795 +23,801 @@ 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))
+#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
 
-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); }
+/* ------------------------- CFX_Edit_Refresh ---------------------------- */
 
-#define	FX_EDIT_PI									3.14159265358979f
-#define FX_EDIT_ITALIC_ANGEL						10 * FX_EDIT_PI / 180.0f
+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) {}
 
-/* ------------------------- CFX_Edit_Refresh ---------------------------- */
+  FX_BOOL operator!=(const CFX_Edit_LineRect& linerect) const {
+    return FXSYS_memcmp(this, &linerect, sizeof(CFX_Edit_LineRect)) != 0;
+  }
 
-enum REFRESH_PLAN_E
-{
-	RP_ANALYSE,
-	RP_NOANALYSE,
-	RP_OPTIONAL
-};
+  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));
+  }
 
-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
-};
+  FX_BOOL IsSameTop(const CFX_Edit_LineRect& linerect) const {
+    return FX_EDIT_IsFloatZero(m_rcLine.top - linerect.m_rcLine.top);
+  }
 
-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;
-};
+  FX_BOOL IsSameLeft(const CFX_Edit_LineRect& linerect) const {
+    return FX_EDIT_IsFloatZero(m_rcLine.left - linerect.m_rcLine.left);
+  }
 
-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;
-};
+  FX_BOOL IsSameRight(const CFX_Edit_LineRect& linerect) const {
+    return FX_EDIT_IsFloatZero(m_rcLine.right - linerect.m_rcLine.right);
+  }
 
-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;
+  CPVT_WordRange m_wrLine;
+  CPDF_Rect m_rcLine;
 };
 
-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;
-};
+class CFX_Edit_LineRectArray {
+ public:
+  CFX_Edit_LineRectArray() {}
 
+  virtual ~CFX_Edit_LineRectArray() { Empty(); }
 
-/* ------------------------- CFX_Edit_Select ---------------------------- */
+  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(); }
 
-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;
+  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;
 };
 
-/* ------------------------- CFX_Edit_Undo ---------------------------- */
+class CFX_Edit_RectArray {
+ public:
+  CFX_Edit_RectArray() {}
 
-class CFX_Edit_Undo
-{
-public:
-	CFX_Edit_Undo(int32_t nBufsize = 10000);
-	virtual ~CFX_Edit_Undo();
+  virtual ~CFX_Edit_RectArray() { Empty(); }
 
-	void									Undo();
-	void									Redo();
+  void Empty() {
+    for (int32_t i = 0, sz = m_Rects.GetSize(); i < sz; i++)
+      delete m_Rects.GetAt(i);
 
-	void									AddItem(IFX_Edit_UndoItem* pItem);
+    m_Rects.RemoveAll();
+  }
 
-	FX_BOOL									CanUndo() const;
-	FX_BOOL									CanRedo() const;
-	FX_BOOL									IsModified() const;
-	FX_BOOL									IsWorking() const;
+  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;
 
-	void									Reset();
+    if (CPDF_Rect* pNewRect = new CPDF_Rect(rect))
+      m_Rects.Add(pNewRect);
+  }
 
-	IFX_Edit_UndoItem*						GetItem(int32_t nIndex);
-	int32_t								GetItemCount(){return m_UndoItemStack.GetSize();}
-	int32_t								GetCurUndoPos(){return m_nCurUndoPos;}
+  int32_t GetSize() const { return m_Rects.GetSize(); }
 
-private:
-	void									SetBufSize(int32_t nSize){m_nBufSize = nSize;}
-	int32_t								GetBufSize(){return m_nBufSize;}
+  CPDF_Rect* GetAt(int32_t nIndex) const {
+    if (nIndex < 0 || nIndex >= m_Rects.GetSize())
+      return NULL;
 
-	void									RemoveHeads();
-	void									RemoveTails();
+    return m_Rects.GetAt(nIndex);
+  }
 
-private:
-	CFX_ArrayTemplate<IFX_Edit_UndoItem*>	m_UndoItemStack;
+  CFX_ArrayTemplate<CPDF_Rect*> m_Rects;
+};
 
-	int32_t								m_nCurUndoPos;
-	int32_t								m_nBufSize;
-	FX_BOOL									m_bModified;
-	FX_BOOL									m_bVirgin;
-	FX_BOOL									m_bWorking;
+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;
 };
 
-class CFX_Edit_UndoItem : public IFX_Edit_UndoItem
-{
-public:
-	CFX_Edit_UndoItem() : m_bFirst(TRUE), m_bLast(TRUE) {}
+/* ------------------------- CFX_Edit_Select ---------------------------- */
 
-	CFX_WideString GetUndoTitle() override { return L""; }
+class CFX_Edit_Select {
+ public:
+  CFX_Edit_Select() {}
 
-	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;}
+  CFX_Edit_Select(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
+    Set(begin, end);
+  }
 
-private:
-	FX_BOOL									m_bFirst;
-	FX_BOOL									m_bLast;
-};
+  CFX_Edit_Select(const CPVT_WordRange& range) {
+    Set(range.BeginPos, range.EndPos);
+  }
 
-class CFX_Edit_GroupUndoItem : public IFX_Edit_UndoItem
-{
-public:
-	CFX_Edit_GroupUndoItem(const CFX_WideString& sTitle);
-	~CFX_Edit_GroupUndoItem() override;
+  CPVT_WordRange ConvertToWordRange() const {
+    return CPVT_WordRange(BeginPos, EndPos);
+  }
 
-	void							Undo() override;
-	void							Redo() override;
-	CFX_WideString					GetUndoTitle() override;
+  void Default() {
+    BeginPos.Default();
+    EndPos.Default();
+  }
 
-	void									AddUndoItem(CFX_Edit_UndoItem* pUndoItem);
-	void									UpdateItems();
+  void Set(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
+    BeginPos = begin;
+    EndPos = end;
+  }
 
-private:
-	CFX_WideString							m_sTitle;
-	CFX_ArrayTemplate<CFX_Edit_UndoItem*>	m_Items;
+  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_UndoItem derived classes ---------------------------- */
+/* ------------------------- CFX_Edit_Undo ---------------------------- */
 
-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();
+class CFX_Edit_Undo {
+ public:
+  CFX_Edit_Undo(int32_t nBufsize = 10000);
+  virtual ~CFX_Edit_Undo();
 
-	void						Redo();
-	void						Undo();
+  void Undo();
+  void Redo();
 
-private:
-	CFX_Edit*					m_pEdit;
+  void AddItem(IFX_Edit_UndoItem* pItem);
 
-	CPVT_WordPlace				m_wpOld;
-	CPVT_WordPlace				m_wpNew;
-	FX_WORD						m_Word;
-	int32_t					m_nCharset;
-	CPVT_WordProps				m_WordProps;
-};
+  FX_BOOL CanUndo() const;
+  FX_BOOL CanRedo() const;
+  FX_BOOL IsModified() const;
+  FX_BOOL IsWorking() const;
 
-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 Reset();
 
-	void						Redo();
-	void						Undo();
+  IFX_Edit_UndoItem* GetItem(int32_t nIndex);
+  int32_t GetItemCount() { return m_UndoItemStack.GetSize(); }
+  int32_t GetCurUndoPos() { return m_nCurUndoPos; }
 
-private:
-	CFX_Edit *					m_pEdit;
+ private:
+  void SetBufSize(int32_t nSize) { m_nBufSize = nSize; }
+  int32_t GetBufSize() { return m_nBufSize; }
 
-	CPVT_WordPlace				m_wpOld;
-	CPVT_WordPlace				m_wpNew;
-	CPVT_SecProps				m_SecProps;
-	CPVT_WordProps				m_WordProps;
-};
+  void RemoveHeads();
+  void RemoveTails();
+
+ private:
+  CFX_ArrayTemplate<IFX_Edit_UndoItem*> m_UndoItemStack;
 
-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;
+  int32_t m_nCurUndoPos;
+  int32_t m_nBufSize;
+  FX_BOOL m_bModified;
+  FX_BOOL m_bVirgin;
+  FX_BOOL m_bWorking;
 };
 
-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 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 CFXEU_Clear : public CFX_Edit_UndoItem
-{
-public:
-	CFXEU_Clear(CFX_Edit * pEdit, const CPVT_WordRange & wrSel, const CFX_WideString & swText);
-	virtual ~CFXEU_Clear();
+class CFX_Edit_GroupUndoItem : public IFX_Edit_UndoItem {
+ public:
+  CFX_Edit_GroupUndoItem(const CFX_WideString& sTitle);
+  ~CFX_Edit_GroupUndoItem() override;
 
-	void						Redo();
-	void						Undo();
+  void Undo() override;
+  void Redo() override;
+  CFX_WideString GetUndoTitle() override;
 
-private:
-	CFX_Edit*					m_pEdit;
+  void AddUndoItem(CFX_Edit_UndoItem* pUndoItem);
+  void UpdateItems();
 
-	CPVT_WordRange				m_wrSel;
-	CFX_WideString				m_swText;
+ private:
+  CFX_WideString m_sTitle;
+  CFX_ArrayTemplate<CFX_Edit_UndoItem*> m_Items;
 };
 
-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;
+/* ------------------------- 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_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_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_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_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_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();
+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;
+};
 
-	void						Redo();
-	void						Undo();
+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;
+};
 
-private:
-	CFX_Edit *					m_pEdit;
-	CPVT_WordPlace				m_wpPlace;
-	CPVT_WordRange				m_wrPlace;
-	EDIT_PROPS_E				m_eProps;
+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;
+};
 
-	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_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();
+class CFX_Edit_Provider : public IPDF_VariableText_Provider {
+ public:
+  CFX_Edit_Provider(IFX_Edit_FontMap* pFontMap);
+  virtual ~CFX_Edit_Provider();
 
-	IFX_Edit_FontMap*			GetFontMap();
+  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);
+  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;
+ private:
+  IFX_Edit_FontMap* m_pFontMap;
 };
 
 #endif  // FPDFSDK_INCLUDE_FXEDIT_FXET_EDIT_H_