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      1 // Copyright 2014 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #ifndef FPDFSDK_INCLUDE_FXEDIT_FXET_EDIT_H_
      8 #define FPDFSDK_INCLUDE_FXEDIT_FXET_EDIT_H_
      9 
     10 #include "core/include/fpdfdoc/fpdf_vt.h"
     11 #include "fpdfsdk/include/fxedit/fx_edit.h"
     12 
     13 class CFX_Edit;
     14 class CFX_Edit_Iterator;
     15 class CFX_Edit_Provider;
     16 
     17 #define FX_EDIT_IsFloatZero(f) (f < 0.0001 && f > -0.0001)
     18 #define FX_EDIT_IsFloatEqual(fa, fb) FX_EDIT_IsFloatZero(fa - fb)
     19 #define FX_EDIT_IsFloatBigger(fa, fb) (fa > fb && !FX_EDIT_IsFloatEqual(fa, fb))
     20 #define FX_EDIT_IsFloatSmaller(fa, fb) \
     21   (fa < fb && !FX_EDIT_IsFloatEqual(fa, fb))
     22 
     23 /* ------------------------- CFX_Edit_Refresh ---------------------------- */
     24 
     25 enum REFRESH_PLAN_E { RP_ANALYSE, RP_NOANALYSE, RP_OPTIONAL };
     26 
     27 enum EDIT_PROPS_E {
     28   EP_LINELEADING,
     29   EP_LINEINDENT,
     30   EP_ALIGNMENT,
     31   EP_FONTINDEX,
     32   EP_FONTSIZE,
     33   EP_WORDCOLOR,
     34   EP_SCRIPTTYPE,
     35   EP_UNDERLINE,
     36   EP_CROSSOUT,
     37   EP_CHARSPACE,
     38   EP_HORZSCALE,
     39   EP_BOLD,
     40   EP_ITALIC
     41 };
     42 
     43 struct CFX_Edit_LineRect {
     44   CFX_Edit_LineRect(const CPVT_WordRange& wrLine, const CPDF_Rect& rcLine)
     45       : m_wrLine(wrLine), m_rcLine(rcLine) {}
     46 
     47   FX_BOOL operator!=(const CFX_Edit_LineRect& linerect) const {
     48     return FXSYS_memcmp(this, &linerect, sizeof(CFX_Edit_LineRect)) != 0;
     49   }
     50 
     51   FX_BOOL IsSameHeight(const CFX_Edit_LineRect& linerect) const {
     52     return FX_EDIT_IsFloatZero(
     53         (m_rcLine.top - m_rcLine.bottom) -
     54         (linerect.m_rcLine.top - linerect.m_rcLine.bottom));
     55   }
     56 
     57   FX_BOOL IsSameTop(const CFX_Edit_LineRect& linerect) const {
     58     return FX_EDIT_IsFloatZero(m_rcLine.top - linerect.m_rcLine.top);
     59   }
     60 
     61   FX_BOOL IsSameLeft(const CFX_Edit_LineRect& linerect) const {
     62     return FX_EDIT_IsFloatZero(m_rcLine.left - linerect.m_rcLine.left);
     63   }
     64 
     65   FX_BOOL IsSameRight(const CFX_Edit_LineRect& linerect) const {
     66     return FX_EDIT_IsFloatZero(m_rcLine.right - linerect.m_rcLine.right);
     67   }
     68 
     69   CPVT_WordRange m_wrLine;
     70   CPDF_Rect m_rcLine;
     71 };
     72 
     73 class CFX_Edit_LineRectArray {
     74  public:
     75   CFX_Edit_LineRectArray() {}
     76 
     77   virtual ~CFX_Edit_LineRectArray() { Empty(); }
     78 
     79   void Empty() {
     80     for (int32_t i = 0, sz = m_LineRects.GetSize(); i < sz; i++)
     81       delete m_LineRects.GetAt(i);
     82 
     83     m_LineRects.RemoveAll();
     84   }
     85 
     86   void RemoveAll() { m_LineRects.RemoveAll(); }
     87 
     88   void operator=(CFX_Edit_LineRectArray& rects) {
     89     Empty();
     90     for (int32_t i = 0, sz = rects.GetSize(); i < sz; i++)
     91       m_LineRects.Add(rects.GetAt(i));
     92 
     93     rects.RemoveAll();
     94   }
     95 
     96   void Add(const CPVT_WordRange& wrLine, const CPDF_Rect& rcLine) {
     97     m_LineRects.Add(new CFX_Edit_LineRect(wrLine, rcLine));
     98   }
     99 
    100   int32_t GetSize() const { return m_LineRects.GetSize(); }
    101 
    102   CFX_Edit_LineRect* GetAt(int32_t nIndex) const {
    103     if (nIndex < 0 || nIndex >= m_LineRects.GetSize())
    104       return NULL;
    105 
    106     return m_LineRects.GetAt(nIndex);
    107   }
    108 
    109   CFX_ArrayTemplate<CFX_Edit_LineRect*> m_LineRects;
    110 };
    111 
    112 class CFX_Edit_RectArray {
    113  public:
    114   CFX_Edit_RectArray() {}
    115 
    116   virtual ~CFX_Edit_RectArray() { Empty(); }
    117 
    118   void Empty() {
    119     for (int32_t i = 0, sz = m_Rects.GetSize(); i < sz; i++)
    120       delete m_Rects.GetAt(i);
    121 
    122     m_Rects.RemoveAll();
    123   }
    124 
    125   void Add(const CPDF_Rect& rect) {
    126     // check for overlapped area
    127     for (int32_t i = 0, sz = m_Rects.GetSize(); i < sz; i++) {
    128       CPDF_Rect* pRect = m_Rects.GetAt(i);
    129       if (pRect && pRect->Contains(rect))
    130         return;
    131     }
    132 
    133     m_Rects.Add(new CPDF_Rect(rect));
    134   }
    135 
    136   int32_t GetSize() const { return m_Rects.GetSize(); }
    137 
    138   CPDF_Rect* GetAt(int32_t nIndex) const {
    139     if (nIndex < 0 || nIndex >= m_Rects.GetSize())
    140       return NULL;
    141 
    142     return m_Rects.GetAt(nIndex);
    143   }
    144 
    145   CFX_ArrayTemplate<CPDF_Rect*> m_Rects;
    146 };
    147 
    148 class CFX_Edit_Refresh {
    149  public:
    150   CFX_Edit_Refresh();
    151   virtual ~CFX_Edit_Refresh();
    152 
    153   void BeginRefresh();
    154   void Push(const CPVT_WordRange& linerange, const CPDF_Rect& rect);
    155   void NoAnalyse();
    156   void Analyse(int32_t nAlignment);
    157   void AddRefresh(const CPDF_Rect& rect);
    158   const CFX_Edit_RectArray* GetRefreshRects() const;
    159   void EndRefresh();
    160 
    161  private:
    162   CFX_Edit_LineRectArray m_NewLineRects;
    163   CFX_Edit_LineRectArray m_OldLineRects;
    164   CFX_Edit_RectArray m_RefreshRects;
    165 };
    166 
    167 /* ------------------------- CFX_Edit_Select ---------------------------- */
    168 
    169 class CFX_Edit_Select {
    170  public:
    171   CFX_Edit_Select() {}
    172 
    173   CFX_Edit_Select(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
    174     Set(begin, end);
    175   }
    176 
    177   explicit CFX_Edit_Select(const CPVT_WordRange& range) {
    178     Set(range.BeginPos, range.EndPos);
    179   }
    180 
    181   CPVT_WordRange ConvertToWordRange() const {
    182     return CPVT_WordRange(BeginPos, EndPos);
    183   }
    184 
    185   void Default() {
    186     BeginPos.Default();
    187     EndPos.Default();
    188   }
    189 
    190   void Set(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
    191     BeginPos = begin;
    192     EndPos = end;
    193   }
    194 
    195   void SetBeginPos(const CPVT_WordPlace& begin) { BeginPos = begin; }
    196 
    197   void SetEndPos(const CPVT_WordPlace& end) { EndPos = end; }
    198 
    199   FX_BOOL IsExist() const { return BeginPos != EndPos; }
    200 
    201   FX_BOOL operator!=(const CPVT_WordRange& wr) const {
    202     return wr.BeginPos != BeginPos || wr.EndPos != EndPos;
    203   }
    204 
    205   CPVT_WordPlace BeginPos, EndPos;
    206 };
    207 
    208 /* ------------------------- CFX_Edit_Undo ---------------------------- */
    209 
    210 class CFX_Edit_Undo {
    211  public:
    212   explicit CFX_Edit_Undo(int32_t nBufsize);
    213   virtual ~CFX_Edit_Undo();
    214 
    215   void Undo();
    216   void Redo();
    217 
    218   void AddItem(IFX_Edit_UndoItem* pItem);
    219 
    220   FX_BOOL CanUndo() const;
    221   FX_BOOL CanRedo() const;
    222   FX_BOOL IsModified() const;
    223   FX_BOOL IsWorking() const;
    224 
    225   void Reset();
    226 
    227   IFX_Edit_UndoItem* GetItem(int32_t nIndex);
    228   int32_t GetItemCount() { return m_UndoItemStack.GetSize(); }
    229   int32_t GetCurUndoPos() { return m_nCurUndoPos; }
    230 
    231  private:
    232   void SetBufSize(int32_t nSize) { m_nBufSize = nSize; }
    233   int32_t GetBufSize() { return m_nBufSize; }
    234 
    235   void RemoveHeads();
    236   void RemoveTails();
    237 
    238  private:
    239   CFX_ArrayTemplate<IFX_Edit_UndoItem*> m_UndoItemStack;
    240 
    241   int32_t m_nCurUndoPos;
    242   int32_t m_nBufSize;
    243   FX_BOOL m_bModified;
    244   FX_BOOL m_bVirgin;
    245   FX_BOOL m_bWorking;
    246 };
    247 
    248 class CFX_Edit_UndoItem : public IFX_Edit_UndoItem {
    249  public:
    250   CFX_Edit_UndoItem() : m_bFirst(TRUE), m_bLast(TRUE) {}
    251   ~CFX_Edit_UndoItem() override {}
    252 
    253   CFX_WideString GetUndoTitle() override { return L""; }
    254 
    255   void SetFirst(FX_BOOL bFirst) { m_bFirst = bFirst; }
    256   FX_BOOL IsFirst() { return m_bFirst; }
    257   void SetLast(FX_BOOL bLast) { m_bLast = bLast; }
    258   FX_BOOL IsLast() { return m_bLast; }
    259 
    260  private:
    261   FX_BOOL m_bFirst;
    262   FX_BOOL m_bLast;
    263 };
    264 
    265 class CFX_Edit_GroupUndoItem : public IFX_Edit_UndoItem {
    266  public:
    267   explicit CFX_Edit_GroupUndoItem(const CFX_WideString& sTitle);
    268   ~CFX_Edit_GroupUndoItem() override;
    269 
    270   void Undo() override;
    271   void Redo() override;
    272   CFX_WideString GetUndoTitle() override;
    273 
    274   void AddUndoItem(CFX_Edit_UndoItem* pUndoItem);
    275   void UpdateItems();
    276 
    277  private:
    278   CFX_WideString m_sTitle;
    279   CFX_ArrayTemplate<CFX_Edit_UndoItem*> m_Items;
    280 };
    281 
    282 /* ------------------------- CFX_Edit_UndoItem derived classes
    283  * ---------------------------- */
    284 
    285 class CFXEU_InsertWord : public CFX_Edit_UndoItem {
    286  public:
    287   CFXEU_InsertWord(CFX_Edit* pEdit,
    288                    const CPVT_WordPlace& wpOldPlace,
    289                    const CPVT_WordPlace& wpNewPlace,
    290                    FX_WORD word,
    291                    int32_t charset,
    292                    const CPVT_WordProps* pWordProps);
    293   ~CFXEU_InsertWord() override;
    294 
    295   // CFX_Edit_UndoItem
    296   void Redo() override;
    297   void Undo() override;
    298 
    299  private:
    300   CFX_Edit* m_pEdit;
    301 
    302   CPVT_WordPlace m_wpOld;
    303   CPVT_WordPlace m_wpNew;
    304   FX_WORD m_Word;
    305   int32_t m_nCharset;
    306   CPVT_WordProps m_WordProps;
    307 };
    308 
    309 class CFXEU_InsertReturn : public CFX_Edit_UndoItem {
    310  public:
    311   CFXEU_InsertReturn(CFX_Edit* pEdit,
    312                      const CPVT_WordPlace& wpOldPlace,
    313                      const CPVT_WordPlace& wpNewPlace,
    314                      const CPVT_SecProps* pSecProps,
    315                      const CPVT_WordProps* pWordProps);
    316   ~CFXEU_InsertReturn() override;
    317 
    318   // CFX_Edit_UndoItem
    319   void Redo() override;
    320   void Undo() override;
    321 
    322  private:
    323   CFX_Edit* m_pEdit;
    324 
    325   CPVT_WordPlace m_wpOld;
    326   CPVT_WordPlace m_wpNew;
    327   CPVT_SecProps m_SecProps;
    328   CPVT_WordProps m_WordProps;
    329 };
    330 
    331 class CFXEU_Backspace : public CFX_Edit_UndoItem {
    332  public:
    333   CFXEU_Backspace(CFX_Edit* pEdit,
    334                   const CPVT_WordPlace& wpOldPlace,
    335                   const CPVT_WordPlace& wpNewPlace,
    336                   FX_WORD word,
    337                   int32_t charset,
    338                   const CPVT_SecProps& SecProps,
    339                   const CPVT_WordProps& WordProps);
    340   ~CFXEU_Backspace() override;
    341 
    342   // CFX_Edit_UndoItem
    343   void Redo() override;
    344   void Undo() override;
    345 
    346  private:
    347   CFX_Edit* m_pEdit;
    348 
    349   CPVT_WordPlace m_wpOld;
    350   CPVT_WordPlace m_wpNew;
    351   FX_WORD m_Word;
    352   int32_t m_nCharset;
    353   CPVT_SecProps m_SecProps;
    354   CPVT_WordProps m_WordProps;
    355 };
    356 
    357 class CFXEU_Delete : public CFX_Edit_UndoItem {
    358  public:
    359   CFXEU_Delete(CFX_Edit* pEdit,
    360                const CPVT_WordPlace& wpOldPlace,
    361                const CPVT_WordPlace& wpNewPlace,
    362                FX_WORD word,
    363                int32_t charset,
    364                const CPVT_SecProps& SecProps,
    365                const CPVT_WordProps& WordProps,
    366                FX_BOOL bSecEnd);
    367   ~CFXEU_Delete() override;
    368 
    369   // CFX_Edit_UndoItem
    370   void Redo() override;
    371   void Undo() override;
    372 
    373  private:
    374   CFX_Edit* m_pEdit;
    375 
    376   CPVT_WordPlace m_wpOld;
    377   CPVT_WordPlace m_wpNew;
    378   FX_WORD m_Word;
    379   int32_t m_nCharset;
    380   CPVT_SecProps m_SecProps;
    381   CPVT_WordProps m_WordProps;
    382   FX_BOOL m_bSecEnd;
    383 };
    384 
    385 class CFXEU_Clear : public CFX_Edit_UndoItem {
    386  public:
    387   CFXEU_Clear(CFX_Edit* pEdit,
    388               const CPVT_WordRange& wrSel,
    389               const CFX_WideString& swText);
    390   ~CFXEU_Clear() override;
    391 
    392   // CFX_Edit_UndoItem
    393   void Redo() override;
    394   void Undo() override;
    395 
    396  private:
    397   CFX_Edit* m_pEdit;
    398 
    399   CPVT_WordRange m_wrSel;
    400   CFX_WideString m_swText;
    401 };
    402 
    403 class CFXEU_ClearRich : public CFX_Edit_UndoItem {
    404  public:
    405   CFXEU_ClearRich(CFX_Edit* pEdit,
    406                   const CPVT_WordPlace& wpOldPlace,
    407                   const CPVT_WordPlace& wpNewPlace,
    408                   const CPVT_WordRange& wrSel,
    409                   FX_WORD word,
    410                   int32_t charset,
    411                   const CPVT_SecProps& SecProps,
    412                   const CPVT_WordProps& WordProps);
    413   ~CFXEU_ClearRich() override;
    414 
    415   // CFX_Edit_UndoItem
    416   void Redo() override;
    417   void Undo() override;
    418 
    419  private:
    420   CFX_Edit* m_pEdit;
    421 
    422   CPVT_WordPlace m_wpOld;
    423   CPVT_WordPlace m_wpNew;
    424   CPVT_WordRange m_wrSel;
    425   FX_WORD m_Word;
    426   int32_t m_nCharset;
    427   CPVT_SecProps m_SecProps;
    428   CPVT_WordProps m_WordProps;
    429 };
    430 
    431 class CFXEU_InsertText : public CFX_Edit_UndoItem {
    432  public:
    433   CFXEU_InsertText(CFX_Edit* pEdit,
    434                    const CPVT_WordPlace& wpOldPlace,
    435                    const CPVT_WordPlace& wpNewPlace,
    436                    const CFX_WideString& swText,
    437                    int32_t charset,
    438                    const CPVT_SecProps* pSecProps,
    439                    const CPVT_WordProps* pWordProps);
    440   ~CFXEU_InsertText() override;
    441 
    442   // CFX_Edit_UndoItem
    443   void Redo() override;
    444   void Undo() override;
    445 
    446  private:
    447   CFX_Edit* m_pEdit;
    448 
    449   CPVT_WordPlace m_wpOld;
    450   CPVT_WordPlace m_wpNew;
    451   CFX_WideString m_swText;
    452   int32_t m_nCharset;
    453   CPVT_SecProps m_SecProps;
    454   CPVT_WordProps m_WordProps;
    455 };
    456 
    457 class CFXEU_SetSecProps : public CFX_Edit_UndoItem {
    458  public:
    459   CFXEU_SetSecProps(CFX_Edit* pEdit,
    460                     const CPVT_WordPlace& place,
    461                     EDIT_PROPS_E ep,
    462                     const CPVT_SecProps& oldsecprops,
    463                     const CPVT_WordProps& oldwordprops,
    464                     const CPVT_SecProps& newsecprops,
    465                     const CPVT_WordProps& newwordprops,
    466                     const CPVT_WordRange& range);
    467   ~CFXEU_SetSecProps() override;
    468 
    469   // CFX_Edit_UndoItem
    470   void Redo() override;
    471   void Undo() override;
    472 
    473  private:
    474   CFX_Edit* m_pEdit;
    475   CPVT_WordPlace m_wpPlace;
    476   CPVT_WordRange m_wrPlace;
    477   EDIT_PROPS_E m_eProps;
    478 
    479   CPVT_SecProps m_OldSecProps;
    480   CPVT_SecProps m_NewSecProps;
    481   CPVT_WordProps m_OldWordProps;
    482   CPVT_WordProps m_NewWordProps;
    483 };
    484 
    485 class CFXEU_SetWordProps : public CFX_Edit_UndoItem {
    486  public:
    487   CFXEU_SetWordProps(CFX_Edit* pEdit,
    488                      const CPVT_WordPlace& place,
    489                      EDIT_PROPS_E ep,
    490                      const CPVT_WordProps& oldprops,
    491                      const CPVT_WordProps& newprops,
    492                      const CPVT_WordRange& range);
    493   ~CFXEU_SetWordProps() override;
    494 
    495   // CFX_Edit_UndoItem
    496   void Redo() override;
    497   void Undo() override;
    498 
    499  private:
    500   CFX_Edit* m_pEdit;
    501   CPVT_WordPlace m_wpPlace;
    502   CPVT_WordRange m_wrPlace;
    503   EDIT_PROPS_E m_eProps;
    504 
    505   CPVT_WordProps m_OldWordProps;
    506   CPVT_WordProps m_NewWordProps;
    507 };
    508 
    509 /* ------------------------- CFX_Edit ---------------------------- */
    510 
    511 class CFX_Edit : public IFX_Edit {
    512   friend class CFX_Edit_Iterator;
    513   friend class CFXEU_InsertWord;
    514   friend class CFXEU_InsertReturn;
    515   friend class CFXEU_Backspace;
    516   friend class CFXEU_Delete;
    517   friend class CFXEU_Clear;
    518   friend class CFXEU_ClearRich;
    519   friend class CFXEU_SetSecProps;
    520   friend class CFXEU_SetWordProps;
    521   friend class CFXEU_InsertText;
    522 
    523  public:
    524   explicit CFX_Edit(IPDF_VariableText* pVT);
    525   ~CFX_Edit() override;
    526 
    527   // IFX_Edit
    528   void SetFontMap(IFX_Edit_FontMap* pFontMap) override;
    529   void SetVTProvider(IPDF_VariableText_Provider* pProvider) override;
    530   void SetNotify(IFX_Edit_Notify* pNotify) override;
    531   void SetOprNotify(IFX_Edit_OprNotify* pOprNotify) override;
    532   IFX_Edit_Iterator* GetIterator() override;
    533   IPDF_VariableText* GetVariableText() override;
    534   IFX_Edit_FontMap* GetFontMap() override;
    535   void Initialize() override;
    536   void SetPlateRect(const CPDF_Rect& rect, FX_BOOL bPaint = TRUE) override;
    537   void SetScrollPos(const CPDF_Point& point) override;
    538   void SetAlignmentH(int32_t nFormat = 0, FX_BOOL bPaint = TRUE) override;
    539   void SetAlignmentV(int32_t nFormat = 0, FX_BOOL bPaint = TRUE) override;
    540   void SetPasswordChar(FX_WORD wSubWord = '*', FX_BOOL bPaint = TRUE) override;
    541   void SetLimitChar(int32_t nLimitChar = 0, FX_BOOL bPaint = TRUE) override;
    542   void SetCharArray(int32_t nCharArray = 0, FX_BOOL bPaint = TRUE) override;
    543   void SetCharSpace(FX_FLOAT fCharSpace = 0.0f, FX_BOOL bPaint = TRUE) override;
    544   void SetHorzScale(int32_t nHorzScale = 100, FX_BOOL bPaint = TRUE) override;
    545   void SetLineLeading(FX_FLOAT fLineLeading, FX_BOOL bPaint = TRUE) override;
    546   void SetMultiLine(FX_BOOL bMultiLine = TRUE, FX_BOOL bPaint = TRUE) override;
    547   void SetAutoReturn(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) override;
    548   void SetAutoFontSize(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) override;
    549   void SetAutoScroll(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) override;
    550   void SetFontSize(FX_FLOAT fFontSize, FX_BOOL bPaint = TRUE) override;
    551   void SetTextOverflow(FX_BOOL bAllowed = FALSE,
    552                        FX_BOOL bPaint = TRUE) override;
    553   FX_BOOL IsRichText() const override;
    554   void SetRichText(FX_BOOL bRichText = TRUE, FX_BOOL bPaint = TRUE) override;
    555   FX_BOOL SetRichFontSize(FX_FLOAT fFontSize) override;
    556   FX_BOOL SetRichFontIndex(int32_t nFontIndex) override;
    557   FX_BOOL SetRichTextColor(FX_COLORREF dwColor) override;
    558   FX_BOOL SetRichTextScript(int32_t nScriptType) override;
    559   FX_BOOL SetRichTextBold(FX_BOOL bBold = TRUE) override;
    560   FX_BOOL SetRichTextItalic(FX_BOOL bItalic = TRUE) override;
    561   FX_BOOL SetRichTextUnderline(FX_BOOL bUnderline = TRUE) override;
    562   FX_BOOL SetRichTextCrossout(FX_BOOL bCrossout = TRUE) override;
    563   FX_BOOL SetRichTextCharSpace(FX_FLOAT fCharSpace) override;
    564   FX_BOOL SetRichTextHorzScale(int32_t nHorzScale = 100) override;
    565   FX_BOOL SetRichTextLineLeading(FX_FLOAT fLineLeading) override;
    566   FX_BOOL SetRichTextLineIndent(FX_FLOAT fLineIndent) override;
    567   FX_BOOL SetRichTextAlignment(int32_t nAlignment) override;
    568   void OnMouseDown(const CPDF_Point& point,
    569                    FX_BOOL bShift,
    570                    FX_BOOL bCtrl) override;
    571   void OnMouseMove(const CPDF_Point& point,
    572                    FX_BOOL bShift,
    573                    FX_BOOL bCtrl) override;
    574   void OnVK_UP(FX_BOOL bShift, FX_BOOL bCtrl) override;
    575   void OnVK_DOWN(FX_BOOL bShift, FX_BOOL bCtrl) override;
    576   void OnVK_LEFT(FX_BOOL bShift, FX_BOOL bCtrl) override;
    577   void OnVK_RIGHT(FX_BOOL bShift, FX_BOOL bCtrl) override;
    578   void OnVK_HOME(FX_BOOL bShift, FX_BOOL bCtrl) override;
    579   void OnVK_END(FX_BOOL bShift, FX_BOOL bCtrl) override;
    580   void SetText(const FX_WCHAR* text,
    581                int32_t charset = DEFAULT_CHARSET,
    582                const CPVT_SecProps* pSecProps = NULL,
    583                const CPVT_WordProps* pWordProps = NULL) override;
    584   FX_BOOL InsertWord(FX_WORD word,
    585                      int32_t charset = DEFAULT_CHARSET,
    586                      const CPVT_WordProps* pWordProps = NULL) override;
    587   FX_BOOL InsertReturn(const CPVT_SecProps* pSecProps = NULL,
    588                        const CPVT_WordProps* pWordProps = NULL) override;
    589   FX_BOOL Backspace() override;
    590   FX_BOOL Delete() override;
    591   FX_BOOL Clear() override;
    592   FX_BOOL InsertText(const FX_WCHAR* text,
    593                      int32_t charset = DEFAULT_CHARSET,
    594                      const CPVT_SecProps* pSecProps = NULL,
    595                      const CPVT_WordProps* pWordProps = NULL) override;
    596   FX_BOOL Redo() override;
    597   FX_BOOL Undo() override;
    598   int32_t WordPlaceToWordIndex(const CPVT_WordPlace& place) const override;
    599   CPVT_WordPlace WordIndexToWordPlace(int32_t index) const override;
    600   CPVT_WordPlace GetLineBeginPlace(const CPVT_WordPlace& place) const override;
    601   CPVT_WordPlace GetLineEndPlace(const CPVT_WordPlace& place) const override;
    602   CPVT_WordPlace GetSectionBeginPlace(
    603       const CPVT_WordPlace& place) const override;
    604   CPVT_WordPlace GetSectionEndPlace(const CPVT_WordPlace& place) const override;
    605   CPVT_WordPlace SearchWordPlace(const CPDF_Point& point) const override;
    606   int32_t GetCaret() const override;
    607   CPVT_WordPlace GetCaretWordPlace() const override;
    608   CFX_WideString GetSelText() const override;
    609   CFX_WideString GetText() const override;
    610   FX_FLOAT GetFontSize() const override;
    611   FX_WORD GetPasswordChar() const override;
    612   CPDF_Point GetScrollPos() const override;
    613   int32_t GetCharArray() const override;
    614   CPDF_Rect GetPlateRect() const override;
    615   CPDF_Rect GetContentRect() const override;
    616   CFX_WideString GetRangeText(const CPVT_WordRange& range) const override;
    617   int32_t GetHorzScale() const override;
    618   FX_FLOAT GetCharSpace() const override;
    619   int32_t GetTotalWords() const override;
    620   void SetSel(int32_t nStartChar, int32_t nEndChar) override;
    621   void GetSel(int32_t& nStartChar, int32_t& nEndChar) const override;
    622   void SelectAll() override;
    623   void SelectNone() override;
    624   FX_BOOL IsSelected() const override;
    625   void Paint() override;
    626   void EnableNotify(FX_BOOL bNotify) override;
    627   void EnableRefresh(FX_BOOL bRefresh) override;
    628   void RefreshWordRange(const CPVT_WordRange& wr) override;
    629   void SetCaret(int32_t nPos) override;
    630   CPVT_WordRange GetWholeWordRange() const override;
    631   CPVT_WordRange GetSelectWordRange() const override;
    632   void EnableUndo(FX_BOOL bUndo) override;
    633   void EnableOprNotify(FX_BOOL bNotify) override;
    634   FX_BOOL IsTextFull() const override;
    635   FX_BOOL IsTextOverflow() const;
    636   FX_BOOL CanUndo() const override;
    637   FX_BOOL CanRedo() const override;
    638   FX_BOOL IsModified() const override;
    639   CPVT_WordRange GetVisibleWordRange() const override;
    640   void AddUndoItem(IFX_Edit_UndoItem* pUndoItem) override;
    641 
    642   FX_BOOL Empty();
    643 
    644   CPVT_WordPlace DoInsertText(const CPVT_WordPlace& place,
    645                               const FX_WCHAR* text,
    646                               int32_t charset,
    647                               const CPVT_SecProps* pSecProps,
    648                               const CPVT_WordProps* pWordProps);
    649   int32_t GetCharSetFromUnicode(FX_WORD word, int32_t nOldCharset);
    650 
    651   int32_t GetTotalLines() const;
    652 
    653  private:
    654   void SetSel(const CPVT_WordPlace& begin, const CPVT_WordPlace& end);
    655 
    656   void RearrangeAll();
    657   void RearrangePart(const CPVT_WordRange& range);
    658   void ScrollToCaret();
    659   void SetScrollInfo();
    660   void SetScrollPosX(FX_FLOAT fx);
    661   void SetScrollPosY(FX_FLOAT fy);
    662   void SetScrollLimit();
    663   void SetContentChanged();
    664 
    665   void SetText(const FX_WCHAR* text,
    666                int32_t charset,
    667                const CPVT_SecProps* pSecProps,
    668                const CPVT_WordProps* pWordProps,
    669                FX_BOOL bAddUndo,
    670                FX_BOOL bPaint);
    671   FX_BOOL InsertWord(FX_WORD word,
    672                      int32_t charset,
    673                      const CPVT_WordProps* pWordProps,
    674                      FX_BOOL bAddUndo,
    675                      FX_BOOL bPaint);
    676   FX_BOOL InsertReturn(const CPVT_SecProps* pSecProps,
    677                        const CPVT_WordProps* pWordProps,
    678                        FX_BOOL bAddUndo,
    679                        FX_BOOL bPaint);
    680   FX_BOOL Backspace(FX_BOOL bAddUndo, FX_BOOL bPaint);
    681   FX_BOOL Delete(FX_BOOL bAddUndo, FX_BOOL bPaint);
    682   FX_BOOL Clear(FX_BOOL bAddUndo, FX_BOOL bPaint);
    683   FX_BOOL InsertText(const FX_WCHAR* text,
    684                      int32_t charset,
    685                      const CPVT_SecProps* pSecProps,
    686                      const CPVT_WordProps* pWordProps,
    687                      FX_BOOL bAddUndo,
    688                      FX_BOOL bPaint);
    689   FX_BOOL SetRichTextProps(EDIT_PROPS_E eProps,
    690                            const CPVT_SecProps* pSecProps,
    691                            const CPVT_WordProps* pWordProps);
    692   FX_BOOL SetSecProps(EDIT_PROPS_E eProps,
    693                       const CPVT_WordPlace& place,
    694                       const CPVT_SecProps* pSecProps,
    695                       const CPVT_WordProps* pWordProps,
    696                       const CPVT_WordRange& wr,
    697                       FX_BOOL bAddUndo);
    698   FX_BOOL SetWordProps(EDIT_PROPS_E eProps,
    699                        const CPVT_WordPlace& place,
    700                        const CPVT_WordProps* pWordProps,
    701                        const CPVT_WordRange& wr,
    702                        FX_BOOL bAddUndo);
    703   void PaintSetProps(EDIT_PROPS_E eProps, const CPVT_WordRange& wr);
    704   void PaintInsertText(const CPVT_WordPlace& wpOld,
    705                        const CPVT_WordPlace& wpNew);
    706 
    707   inline CPDF_Point VTToEdit(const CPDF_Point& point) const;
    708   inline CPDF_Point EditToVT(const CPDF_Point& point) const;
    709   inline CPDF_Rect VTToEdit(const CPDF_Rect& rect) const;
    710   inline CPDF_Rect EditToVT(const CPDF_Rect& rect) const;
    711 
    712   void Refresh(REFRESH_PLAN_E ePlan,
    713                const CPVT_WordRange* pRange1 = NULL,
    714                const CPVT_WordRange* pRange2 = NULL);
    715   void RefreshPushLineRects(const CPVT_WordRange& wr);
    716   void RefreshPushRandomRects(const CPVT_WordRange& wr);
    717 
    718   void SetCaret(const CPVT_WordPlace& place);
    719   void SetCaretInfo();
    720   void SetCaretOrigin();
    721   void SetCaretChange();
    722 
    723   CPVT_WordRange GetLatinWordsRange(const CPVT_WordPlace& place) const;
    724   CPVT_WordRange CombineWordRange(const CPVT_WordRange& wr1,
    725                                   const CPVT_WordRange& wr2);
    726 
    727 
    728   void BeginGroupUndo(const CFX_WideString& sTitle);
    729   void EndGroupUndo();
    730   void AddEditUndoItem(CFX_Edit_UndoItem* pEditUndoItem);
    731 
    732   void SetPageInfo(const CPVT_WordPlace& place);
    733   CPVT_WordPlace SearchPageEndPlace(const CPVT_WordPlace& wpPageBegin,
    734                                     const CPDF_Point& point) const;
    735   FX_FLOAT GetLineTop(const CPVT_WordPlace& place) const;
    736   FX_FLOAT GetLineBottom(const CPVT_WordPlace& place) const;
    737 
    738  private:
    739   IPDF_VariableText* m_pVT;
    740   IFX_Edit_Notify* m_pNotify;
    741   IFX_Edit_OprNotify* m_pOprNotify;
    742   CFX_Edit_Provider* m_pVTProvide;
    743 
    744   CPVT_WordPlace m_wpCaret;
    745   CPVT_WordPlace m_wpOldCaret;
    746   CFX_Edit_Select m_SelState;
    747 
    748   CPDF_Point m_ptScrollPos;
    749   CPDF_Point m_ptRefreshScrollPos;
    750   FX_BOOL m_bEnableScroll;
    751   IFX_Edit_Iterator* m_pIterator;
    752   CFX_Edit_Refresh m_Refresh;
    753   CPDF_Point m_ptCaret;
    754   CFX_Edit_Undo m_Undo;
    755   int32_t m_nAlignment;
    756   FX_BOOL m_bNotifyFlag;
    757   FX_BOOL m_bEnableOverflow;
    758   FX_BOOL m_bEnableRefresh;
    759   CPDF_Rect m_rcOldContent;
    760   FX_BOOL m_bEnableUndo;
    761   FX_BOOL m_bNotify;
    762   FX_BOOL m_bOprNotify;
    763   CFX_Edit_GroupUndoItem* m_pGroupUndoItem;
    764 };
    765 
    766 /* ------------------------- CFX_Edit_Iterator ---------------------------- */
    767 
    768 class CFX_Edit_Iterator : public IFX_Edit_Iterator {
    769  public:
    770   CFX_Edit_Iterator(CFX_Edit* pEdit, IPDF_VariableText_Iterator* pVTIterator);
    771   ~CFX_Edit_Iterator() override;
    772 
    773   // IFX_Edit_Iterator
    774   FX_BOOL NextWord() override;
    775   FX_BOOL NextLine() override;
    776   FX_BOOL NextSection() override;
    777   FX_BOOL PrevWord() override;
    778   FX_BOOL PrevLine() override;
    779   FX_BOOL PrevSection() override;
    780   FX_BOOL GetWord(CPVT_Word& word) const override;
    781   FX_BOOL GetLine(CPVT_Line& line) const override;
    782   FX_BOOL GetSection(CPVT_Section& section) const override;
    783   void SetAt(int32_t nWordIndex) override;
    784   void SetAt(const CPVT_WordPlace& place) override;
    785   const CPVT_WordPlace& GetAt() const override;
    786   IFX_Edit* GetEdit() const override;
    787 
    788  private:
    789   CFX_Edit* m_pEdit;
    790   IPDF_VariableText_Iterator* m_pVTIterator;
    791 };
    792 
    793 class CFX_Edit_Provider : public IPDF_VariableText_Provider {
    794  public:
    795   explicit CFX_Edit_Provider(IFX_Edit_FontMap* pFontMap);
    796   ~CFX_Edit_Provider() override;
    797 
    798   IFX_Edit_FontMap* GetFontMap();
    799 
    800   // IPDF_VariableText_Provider:
    801   int32_t GetCharWidth(int32_t nFontIndex,
    802                        FX_WORD word,
    803                        int32_t nWordStyle) override;
    804   int32_t GetTypeAscent(int32_t nFontIndex) override;
    805   int32_t GetTypeDescent(int32_t nFontIndex) override;
    806   int32_t GetWordFontIndex(FX_WORD word,
    807                            int32_t charset,
    808                            int32_t nFontIndex) override;
    809   int32_t GetDefaultFontIndex() override;
    810   FX_BOOL IsLatinWord(FX_WORD word) override;
    811 
    812  private:
    813   IFX_Edit_FontMap* m_pFontMap;
    814 };
    815 
    816 #endif  // FPDFSDK_INCLUDE_FXEDIT_FXET_EDIT_H_
    817