1 files changed, 803 insertions, 0 deletions
diff --git a/fpdfsdk/fxedit/include/fxet_edit.h b/fpdfsdk/fxedit/include/fxet_edit.h
new file mode 100644
index 0000000000..4233b1d301
--- /dev/null
+++ b/fpdfsdk/fxedit/include/fxet_edit.h
@@ -0,0 +1,803 @@
+// 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_FXEDIT_INCLUDE_FXET_EDIT_H_
+#define FPDFSDK_FXEDIT_INCLUDE_FXET_EDIT_H_
+
+#include "core/fpdfdoc/include/cpvt_secprops.h"
+#include "core/fpdfdoc/include/cpvt_wordprops.h"
+#include "fpdfsdk/fxedit/include/fx_edit.h"
+
+class CFX_Edit;
+class CFX_Edit_Iterator;
+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))
+
+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 CFX_FloatRect& 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;
+  CFX_FloatRect 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 CFX_FloatRect& rcLine) {
+    m_LineRects.Add(new CFX_Edit_LineRect(wrLine, rcLine));
+  }
+
+  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 CFX_FloatRect& rect) {
+    // check for overlapped area
+    for (int32_t i = 0, sz = m_Rects.GetSize(); i < sz; i++) {
+      CFX_FloatRect* pRect = m_Rects.GetAt(i);
+      if (pRect && pRect->Contains(rect))
+        return;
+    }
+
+    m_Rects.Add(new CFX_FloatRect(rect));
+  }
+
+  int32_t GetSize() const { return m_Rects.GetSize(); }
+
+  CFX_FloatRect* GetAt(int32_t nIndex) const {
+    if (nIndex < 0 || nIndex >= m_Rects.GetSize())
+      return NULL;
+
+    return m_Rects.GetAt(nIndex);
+  }
+
+  CFX_ArrayTemplate<CFX_FloatRect*> m_Rects;
+};
+
+class CFX_Edit_Refresh {
+ public:
+  CFX_Edit_Refresh();
+  virtual ~CFX_Edit_Refresh();
+
+  void BeginRefresh();
+  void Push(const CPVT_WordRange& linerange, const CFX_FloatRect& rect);
+  void NoAnalyse();
+  void Analyse(int32_t nAlignment);
+  void AddRefresh(const CFX_FloatRect& 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_Select {
+ public:
+  CFX_Edit_Select() {}
+
+  CFX_Edit_Select(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
+    Set(begin, end);
+  }
+
+  explicit 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_Undo {
+ public:
+  explicit CFX_Edit_Undo(int32_t nBufsize);
+  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_Edit_UndoItem() override {}
+
+  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:
+  explicit 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;
+};
+
+class CFXEU_InsertWord : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_InsertWord(CFX_Edit* pEdit,
+                   const CPVT_WordPlace& wpOldPlace,
+                   const CPVT_WordPlace& wpNewPlace,
+                   uint16_t word,
+                   int32_t charset,
+                   const CPVT_WordProps* pWordProps);
+  ~CFXEU_InsertWord() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  uint16_t 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);
+  ~CFXEU_InsertReturn() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ 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,
+                  uint16_t word,
+                  int32_t charset,
+                  const CPVT_SecProps& SecProps,
+                  const CPVT_WordProps& WordProps);
+  ~CFXEU_Backspace() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  uint16_t 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,
+               uint16_t word,
+               int32_t charset,
+               const CPVT_SecProps& SecProps,
+               const CPVT_WordProps& WordProps,
+               FX_BOOL bSecEnd);
+  ~CFXEU_Delete() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  uint16_t 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);
+  ~CFXEU_Clear() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ 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,
+                  uint16_t word,
+                  int32_t charset,
+                  const CPVT_SecProps& SecProps,
+                  const CPVT_WordProps& WordProps);
+  ~CFXEU_ClearRich() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  CPVT_WordRange m_wrSel;
+  uint16_t 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);
+  ~CFXEU_InsertText() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ 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);
+  ~CFXEU_SetSecProps() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ 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);
+  ~CFXEU_SetWordProps() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ 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 : 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:
+  explicit CFX_Edit(CPDF_VariableText* pVT);
+  ~CFX_Edit() override;
+
+  // IFX_Edit
+  void SetFontMap(IPVT_FontMap* pFontMap) override;
+  void SetVTProvider(CPDF_VariableText::Provider* pProvider) override;
+  void SetNotify(IFX_Edit_Notify* pNotify) override;
+  void SetOprNotify(IFX_Edit_OprNotify* pOprNotify) override;
+  IFX_Edit_Iterator* GetIterator() override;
+  CPDF_VariableText* GetVariableText() override;
+  IPVT_FontMap* GetFontMap() override;
+  void Initialize() override;
+  void SetPlateRect(const CFX_FloatRect& rect, FX_BOOL bPaint = TRUE) override;
+  void SetScrollPos(const CFX_FloatPoint& point) override;
+  void SetAlignmentH(int32_t nFormat = 0, FX_BOOL bPaint = TRUE) override;
+  void SetAlignmentV(int32_t nFormat = 0, FX_BOOL bPaint = TRUE) override;
+  void SetPasswordChar(uint16_t wSubWord = '*', FX_BOOL bPaint = TRUE) override;
+  void SetLimitChar(int32_t nLimitChar = 0, FX_BOOL bPaint = TRUE) override;
+  void SetCharArray(int32_t nCharArray = 0, FX_BOOL bPaint = TRUE) override;
+  void SetCharSpace(FX_FLOAT fCharSpace = 0.0f, FX_BOOL bPaint = TRUE) override;
+  void SetHorzScale(int32_t nHorzScale = 100, FX_BOOL bPaint = TRUE) override;
+  void SetLineLeading(FX_FLOAT fLineLeading, FX_BOOL bPaint = TRUE) override;
+  void SetMultiLine(FX_BOOL bMultiLine = TRUE, FX_BOOL bPaint = TRUE) override;
+  void SetAutoReturn(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) override;
+  void SetAutoFontSize(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) override;
+  void SetAutoScroll(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) override;
+  void SetFontSize(FX_FLOAT fFontSize, FX_BOOL bPaint = TRUE) override;
+  void SetTextOverflow(FX_BOOL bAllowed = FALSE,
+                       FX_BOOL bPaint = TRUE) override;
+  FX_BOOL IsRichText() const override;
+  void SetRichText(FX_BOOL bRichText = TRUE, FX_BOOL bPaint = TRUE) override;
+  FX_BOOL SetRichFontSize(FX_FLOAT fFontSize) override;
+  FX_BOOL SetRichFontIndex(int32_t nFontIndex) override;
+  FX_BOOL SetRichTextColor(FX_COLORREF dwColor) override;
+  FX_BOOL SetRichTextScript(CPDF_VariableText::ScriptType nScriptType) override;
+  FX_BOOL SetRichTextBold(FX_BOOL bBold = TRUE) override;
+  FX_BOOL SetRichTextItalic(FX_BOOL bItalic = TRUE) override;
+  FX_BOOL SetRichTextUnderline(FX_BOOL bUnderline = TRUE) override;
+  FX_BOOL SetRichTextCrossout(FX_BOOL bCrossout = TRUE) override;
+  FX_BOOL SetRichTextCharSpace(FX_FLOAT fCharSpace) override;
+  FX_BOOL SetRichTextHorzScale(int32_t nHorzScale = 100) override;
+  FX_BOOL SetRichTextLineLeading(FX_FLOAT fLineLeading) override;
+  FX_BOOL SetRichTextLineIndent(FX_FLOAT fLineIndent) override;
+  FX_BOOL SetRichTextAlignment(int32_t nAlignment) override;
+  void OnMouseDown(const CFX_FloatPoint& point,
+                   FX_BOOL bShift,
+                   FX_BOOL bCtrl) override;
+  void OnMouseMove(const CFX_FloatPoint& point,
+                   FX_BOOL bShift,
+                   FX_BOOL bCtrl) override;
+  void OnVK_UP(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_DOWN(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_LEFT(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_RIGHT(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_HOME(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_END(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void SetText(const FX_WCHAR* text,
+               int32_t charset = DEFAULT_CHARSET,
+               const CPVT_SecProps* pSecProps = NULL,
+               const CPVT_WordProps* pWordProps = NULL) override;
+  FX_BOOL InsertWord(uint16_t word,
+                     int32_t charset = DEFAULT_CHARSET,
+                     const CPVT_WordProps* pWordProps = NULL) override;
+  FX_BOOL InsertReturn(const CPVT_SecProps* pSecProps = NULL,
+                       const CPVT_WordProps* pWordProps = NULL) override;
+  FX_BOOL Backspace() override;
+  FX_BOOL Delete() override;
+  FX_BOOL Clear() override;
+  FX_BOOL InsertText(const FX_WCHAR* text,
+                     int32_t charset = DEFAULT_CHARSET,
+                     const CPVT_SecProps* pSecProps = NULL,
+                     const CPVT_WordProps* pWordProps = NULL) override;
+  FX_BOOL Redo() override;
+  FX_BOOL Undo() override;
+  int32_t WordPlaceToWordIndex(const CPVT_WordPlace& place) const override;
+  CPVT_WordPlace WordIndexToWordPlace(int32_t index) const override;
+  CPVT_WordPlace GetLineBeginPlace(const CPVT_WordPlace& place) const override;
+  CPVT_WordPlace GetLineEndPlace(const CPVT_WordPlace& place) const override;
+  CPVT_WordPlace GetSectionBeginPlace(
+      const CPVT_WordPlace& place) const override;
+  CPVT_WordPlace GetSectionEndPlace(const CPVT_WordPlace& place) const override;
+  CPVT_WordPlace SearchWordPlace(const CFX_FloatPoint& point) const override;
+  int32_t GetCaret() const override;
+  CPVT_WordPlace GetCaretWordPlace() const override;
+  CFX_WideString GetSelText() const override;
+  CFX_WideString GetText() const override;
+  FX_FLOAT GetFontSize() const override;
+  uint16_t GetPasswordChar() const override;
+  CFX_FloatPoint GetScrollPos() const override;
+  int32_t GetCharArray() const override;
+  CFX_FloatRect GetPlateRect() const override;
+  CFX_FloatRect GetContentRect() const override;
+  CFX_WideString GetRangeText(const CPVT_WordRange& range) const override;
+  int32_t GetHorzScale() const override;
+  FX_FLOAT GetCharSpace() const override;
+  int32_t GetTotalWords() const override;
+  void SetSel(int32_t nStartChar, int32_t nEndChar) override;
+  void GetSel(int32_t& nStartChar, int32_t& nEndChar) const override;
+  void SelectAll() override;
+  void SelectNone() override;
+  FX_BOOL IsSelected() const override;
+  void Paint() override;
+  void EnableNotify(FX_BOOL bNotify) override;
+  void EnableRefresh(FX_BOOL bRefresh) override;
+  void RefreshWordRange(const CPVT_WordRange& wr) override;
+  void SetCaret(int32_t nPos) override;
+  CPVT_WordRange GetWholeWordRange() const override;
+  CPVT_WordRange GetSelectWordRange() const override;
+  void EnableUndo(FX_BOOL bUndo) override;
+  void EnableOprNotify(FX_BOOL bNotify) override;
+  FX_BOOL IsTextFull() const override;
+  FX_BOOL IsTextOverflow() const;
+  FX_BOOL CanUndo() const override;
+  FX_BOOL CanRedo() const override;
+  FX_BOOL IsModified() const override;
+  CPVT_WordRange GetVisibleWordRange() const override;
+  void AddUndoItem(IFX_Edit_UndoItem* pUndoItem) override;
+
+  FX_BOOL Empty();
+
+  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(uint16_t word, int32_t nOldCharset);
+
+  int32_t GetTotalLines() const;
+
+ private:
+  void SetSel(const CPVT_WordPlace& begin, const CPVT_WordPlace& end);
+
+  void RearrangeAll();
+  void RearrangePart(const CPVT_WordRange& range);
+  void ScrollToCaret();
+  void SetScrollInfo();
+  void SetScrollPosX(FX_FLOAT fx);
+  void SetScrollPosY(FX_FLOAT fy);
+  void SetScrollLimit();
+  void SetContentChanged();
+
+  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(uint16_t 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 CFX_FloatPoint VTToEdit(const CFX_FloatPoint& point) const;
+  inline CFX_FloatPoint EditToVT(const CFX_FloatPoint& point) const;
+  inline CFX_FloatRect VTToEdit(const CFX_FloatRect& rect) const;
+  inline CFX_FloatRect EditToVT(const CFX_FloatRect& rect) const;
+
+  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 SetCaret(const CPVT_WordPlace& place);
+  void SetCaretInfo();
+  void SetCaretOrigin();
+  void SetCaretChange();
+
+  CPVT_WordRange GetLatinWordsRange(const CPVT_WordPlace& place) const;
+  CPVT_WordRange CombineWordRange(const CPVT_WordRange& wr1,
+                                  const CPVT_WordRange& wr2);
+
+  void BeginGroupUndo(const CFX_WideString& sTitle);
+  void EndGroupUndo();
+  void AddEditUndoItem(CFX_Edit_UndoItem* pEditUndoItem);
+
+  void SetPageInfo(const CPVT_WordPlace& place);
+  CPVT_WordPlace SearchPageEndPlace(const CPVT_WordPlace& wpPageBegin,
+                                    const CFX_FloatPoint& point) const;
+  FX_FLOAT GetLineTop(const CPVT_WordPlace& place) const;
+  FX_FLOAT GetLineBottom(const CPVT_WordPlace& place) const;
+
+ private:
+  CPDF_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;
+
+  CFX_FloatPoint m_ptScrollPos;
+  CFX_FloatPoint m_ptRefreshScrollPos;
+  FX_BOOL m_bEnableScroll;
+  IFX_Edit_Iterator* m_pIterator;
+  CFX_Edit_Refresh m_Refresh;
+  CFX_FloatPoint m_ptCaret;
+  CFX_Edit_Undo m_Undo;
+  int32_t m_nAlignment;
+  FX_BOOL m_bNotifyFlag;
+  FX_BOOL m_bEnableOverflow;
+  FX_BOOL m_bEnableRefresh;
+  CFX_FloatRect m_rcOldContent;
+  FX_BOOL m_bEnableUndo;
+  FX_BOOL m_bNotify;
+  FX_BOOL m_bOprNotify;
+  CFX_Edit_GroupUndoItem* m_pGroupUndoItem;
+};
+
+class CFX_Edit_Iterator : public IFX_Edit_Iterator {
+ public:
+  CFX_Edit_Iterator(CFX_Edit* pEdit, CPDF_VariableText::Iterator* pVTIterator);
+  ~CFX_Edit_Iterator() override;
+
+  // IFX_Edit_Iterator
+  FX_BOOL NextWord() override;
+  FX_BOOL NextLine() override;
+  FX_BOOL NextSection() override;
+  FX_BOOL PrevWord() override;
+  FX_BOOL PrevLine() override;
+  FX_BOOL PrevSection() override;
+  FX_BOOL GetWord(CPVT_Word& word) const override;
+  FX_BOOL GetLine(CPVT_Line& line) const override;
+  FX_BOOL GetSection(CPVT_Section& section) const override;
+  void SetAt(int32_t nWordIndex) override;
+  void SetAt(const CPVT_WordPlace& place) override;
+  const CPVT_WordPlace& GetAt() const override;
+  IFX_Edit* GetEdit() const override;
+
+ private:
+  CFX_Edit* m_pEdit;
+  CPDF_VariableText::Iterator* m_pVTIterator;
+};
+
+class CFX_Edit_Provider : public CPDF_VariableText::Provider {
+ public:
+  explicit CFX_Edit_Provider(IPVT_FontMap* pFontMap);
+  ~CFX_Edit_Provider() override;
+
+  IPVT_FontMap* GetFontMap();
+
+  // CPDF_VariableText::Provider:
+  int32_t GetCharWidth(int32_t nFontIndex,
+                       uint16_t word,
+                       int32_t nWordStyle) override;
+  int32_t GetTypeAscent(int32_t nFontIndex) override;
+  int32_t GetTypeDescent(int32_t nFontIndex) override;
+  int32_t GetWordFontIndex(uint16_t word,
+                           int32_t charset,
+                           int32_t nFontIndex) override;
+  int32_t GetDefaultFontIndex() override;
+  FX_BOOL IsLatinWord(uint16_t word) override;
+
+ private:
+  IPVT_FontMap* m_pFontMap;
+};
+
+#endif  // FPDFSDK_FXEDIT_INCLUDE_FXET_EDIT_H_