src/third_party/pdfium/fpdfsdk/include/fxedit/fxet_edit.h

   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 _FXET_EDIT_H_
   8 #define _FXET_EDIT_H_
   9
  10 #include "fx_edit.h"
  11
  12 class CFX_Edit_Page;
  13 struct CFX_Edit_LineRect;
  14 class CFX_Edit_LineRectArray;
  15 class CFX_Edit_RectArray;
  16 class CFX_Edit_Refresh;
  17 class CFX_Edit_Select;
  18 class CFX_Edit;
  19 class CFX_Edit_Iterator;
  20 class CFX_Edit_Refresh;
  21 class CFX_Edit_UndoItem;
  22 class CFX_Edit_Undo;
  23 class CFX_Edit_Provider;
  24
  25 #define FX_EDIT_IsFloatZero(f)                                          (f < 0.0001 && f > -0.0001)
  26 #define FX_EDIT_IsFloatEqual(fa,fb)                                     FX_EDIT_IsFloatZero(fa - fb)
  27 #define FX_EDIT_IsFloatBigger(fa,fb)                            (fa > fb && !FX_EDIT_IsFloatEqual(fa,fb))
  28 #define FX_EDIT_IsFloatSmaller(fa,fb)                           (fa < fb && !FX_EDIT_IsFloatEqual(fa,fb))
  29
  30 template<class T> T FX_EDIT_MIN (const T & i, const T & j) { return ((i < j) ? i : j); }
  31 template<class T> T FX_EDIT_MAX (const T & i, const T & j) { return ((i > j) ? i : j); }
  32
  33 #define FX_EDIT_PI                                                                      3.14159265358979f
  34 #define FX_EDIT_ITALIC_ANGEL                                            10 * FX_EDIT_PI / 180.0f
  35
  36
  37 /* ------------------------- CFX_Edit_Refresh ---------------------------- */
  38
  39 enum REFRESH_PLAN_E
  40 {
  41         RP_ANALYSE,
  42         RP_NOANALYSE,
  43         RP_OPTIONAL
  44 };
  45
  46 enum EDIT_PROPS_E
  47 {
  48         EP_LINELEADING,
  49         EP_LINEINDENT,
  50         EP_ALIGNMENT,
  51         EP_FONTINDEX,
  52         EP_FONTSIZE,
  53         EP_WORDCOLOR,
  54         EP_SCRIPTTYPE,
  55         EP_UNDERLINE,
  56         EP_CROSSOUT,
  57         EP_CHARSPACE,
  58         EP_HORZSCALE,
  59         EP_BOLD,
  60         EP_ITALIC
  61 };
  62
  63 struct CFX_Edit_LineRect
  64 {
  65         CFX_Edit_LineRect(const CPVT_WordRange & wrLine,const CPDF_Rect & rcLine) :
  66                 m_wrLine(wrLine), m_rcLine(rcLine)
  67         {
  68         }
  69
  70         FX_BOOL operator != (const CFX_Edit_LineRect & linerect) const
  71         {
  72                 return FXSYS_memcmp(this, &linerect, sizeof(CFX_Edit_LineRect)) != 0;
  73         }
  74
  75         FX_BOOL IsSameHeight(const CFX_Edit_LineRect & linerect) const
  76         {
  77                 return FX_EDIT_IsFloatZero((m_rcLine.top - m_rcLine.bottom) - (linerect.m_rcLine.top -linerect.m_rcLine.bottom));
  78         }
  79
  80         FX_BOOL IsSameTop(const CFX_Edit_LineRect & linerect) const
  81         {
  82                 return FX_EDIT_IsFloatZero(m_rcLine.top - linerect.m_rcLine.top);
  83         }
  84
  85         FX_BOOL IsSameLeft(const CFX_Edit_LineRect & linerect) const
  86         {
  87                 return FX_EDIT_IsFloatZero(m_rcLine.left - linerect.m_rcLine.left);
  88         }
  89
  90         FX_BOOL IsSameRight(const CFX_Edit_LineRect & linerect) const
  91         {
  92                 return FX_EDIT_IsFloatZero(m_rcLine.right - linerect.m_rcLine.right);
  93         }
  94
  95         CPVT_WordRange                                                  m_wrLine;
  96         CPDF_Rect                                                               m_rcLine;
  97 };
  98
  99 class CFX_Edit_LineRectArray
 100 {
 101 public:
 102         CFX_Edit_LineRectArray()
 103         {
 104         }
 105
 106         virtual ~CFX_Edit_LineRectArray()
 107         {
 108                 Empty();
 109         }
 110
 111         void Empty()
 112         {
 113                 for (FX_INT32 i = 0, sz = m_LineRects.GetSize(); i < sz; i++)
 114                         delete m_LineRects.GetAt(i);
 115
 116                 m_LineRects.RemoveAll();
 117         }
 118
 119         void RemoveAll()
 120         {
 121                 m_LineRects.RemoveAll();
 122         }
 123
 124         void operator = (CFX_Edit_LineRectArray & rects)
 125         {
 126                 Empty();
 127                 for (FX_INT32 i = 0, sz = rects.GetSize(); i < sz; i++)
 128                         m_LineRects.Add(rects.GetAt(i));
 129
 130                 rects.RemoveAll();
 131         }
 132
 133         void Add(const CPVT_WordRange & wrLine,const CPDF_Rect & rcLine)
 134         {
 135                 if (CFX_Edit_LineRect * pRect = new CFX_Edit_LineRect(wrLine,rcLine))
 136                         m_LineRects.Add(pRect);
 137         }
 138
 139         FX_INT32 GetSize() const
 140         {
 141                 return m_LineRects.GetSize();
 142         }
 143
 144         CFX_Edit_LineRect * GetAt(FX_INT32 nIndex) const
 145         {
 146                 if (nIndex < 0 || nIndex >= m_LineRects.GetSize())
 147                         return NULL;
 148
 149                 return m_LineRects.GetAt(nIndex);
 150         }
 151
 152         CFX_ArrayTemplate<CFX_Edit_LineRect*>           m_LineRects;
 153 };
 154
 155 class CFX_Edit_RectArray
 156 {
 157 public:
 158         CFX_Edit_RectArray()
 159         {
 160         }
 161
 162         virtual ~CFX_Edit_RectArray()
 163         {
 164                 this->Empty();
 165         }
 166
 167         void Empty()
 168         {
 169                 for (FX_INT32 i = 0, sz = m_Rects.GetSize(); i < sz; i++)
 170                         delete m_Rects.GetAt(i);
 171
 172                 this->m_Rects.RemoveAll();
 173         }
 174
 175         void Add(const CPDF_Rect & rect)
 176         {
 177                 //check for overlaped area
 178                 for (FX_INT32 i = 0, sz = m_Rects.GetSize(); i < sz; i++)
 179                         if (CPDF_Rect * pRect = m_Rects.GetAt(i))
 180                                 if (pRect->Contains(rect))return;
 181
 182                 if (CPDF_Rect * pNewRect = new CPDF_Rect(rect))
 183                         m_Rects.Add(pNewRect);
 184         }
 185
 186         FX_INT32 GetSize() const
 187         {
 188                 return m_Rects.GetSize();
 189         }
 190
 191         CPDF_Rect * GetAt(FX_INT32 nIndex) const
 192         {
 193                 if (nIndex < 0 || nIndex >= m_Rects.GetSize())
 194                         return NULL;
 195
 196                 return m_Rects.GetAt(nIndex);
 197         }
 198
 199         CFX_ArrayTemplate<CPDF_Rect*>                   m_Rects;
 200 };
 201
 202 class CFX_Edit_Refresh
 203 {
 204 public:
 205         CFX_Edit_Refresh();
 206         virtual ~CFX_Edit_Refresh();
 207
 208         void                                                                    BeginRefresh();
 209         void                                                                    Push(const CPVT_WordRange & linerange,const CPDF_Rect & rect);
 210         void                                                                    NoAnalyse();
 211         void                                                                    Analyse(FX_INT32 nAlignment);
 212         void                                                                    AddRefresh(const CPDF_Rect & rect);
 213         const CFX_Edit_RectArray *                              GetRefreshRects() const;
 214         void                                                                    EndRefresh();
 215
 216 private:
 217         CFX_Edit_LineRectArray                                  m_NewLineRects;
 218         CFX_Edit_LineRectArray                                  m_OldLineRects;
 219         CFX_Edit_RectArray                                              m_RefreshRects;
 220 };
 221
 222
 223 /* ------------------------- CFX_Edit_Select ---------------------------- */
 224
 225 class CFX_Edit_Select
 226 {
 227 public:
 228         CFX_Edit_Select()
 229         {
 230         }
 231
 232         CFX_Edit_Select(const CPVT_WordPlace & begin,const CPVT_WordPlace & end)
 233         {
 234                 Set(begin,end);
 235         }
 236
 237         CFX_Edit_Select(const CPVT_WordRange & range)
 238         {
 239                 Set(range.BeginPos,range.EndPos);
 240         }
 241
 242         CPVT_WordRange ConvertToWordRange() const
 243         {
 244                 return CPVT_WordRange(this->BeginPos,this->EndPos);
 245         }
 246
 247         void Default()
 248         {
 249                 BeginPos.Default();
 250                 EndPos.Default();
 251         }
 252
 253         void Set(const CPVT_WordPlace & begin,const CPVT_WordPlace & end)
 254         {
 255                 this->BeginPos = begin;
 256                 this->EndPos = end;
 257         }
 258
 259         void SetBeginPos(const CPVT_WordPlace & begin)
 260         {
 261                 this->BeginPos = begin;
 262         }
 263
 264         void SetEndPos(const CPVT_WordPlace & end)
 265         {
 266                 this->EndPos = end;
 267         }
 268
 269         FX_BOOL IsExist() const
 270         {
 271                 return this->BeginPos != this->EndPos;
 272         }
 273
 274         FX_BOOL operator != (const CPVT_WordRange & wr) const
 275         {
 276                 return wr.BeginPos != this->BeginPos || wr.EndPos != this->EndPos;
 277         }
 278
 279         CPVT_WordPlace BeginPos,EndPos;
 280 };
 281
 282 /* ------------------------- CFX_Edit_Undo ---------------------------- */
 283
 284 class CFX_Edit_Undo
 285 {
 286 public:
 287         CFX_Edit_Undo(FX_INT32 nBufsize = 10000);
 288         virtual ~CFX_Edit_Undo();
 289
 290         void                                                                    Undo();
 291         void                                                                    Redo();
 292
 293         void                                                                    AddItem(IFX_Edit_UndoItem* pItem);
 294
 295         FX_BOOL                                                                 CanUndo() const;
 296         FX_BOOL                                                                 CanRedo() const;
 297         FX_BOOL                                                                 IsModified() const;
 298         FX_BOOL                                                                 IsWorking() const;
 299
 300         void                                                                    Reset();
 301
 302         IFX_Edit_UndoItem*                                              GetItem(FX_INT32 nIndex);
 303         FX_INT32                                                                GetItemCount(){return m_UndoItemStack.GetSize();}
 304         FX_INT32                                                                GetCurUndoPos(){return m_nCurUndoPos;}
 305
 306 private:
 307         void                                                                    SetBufSize(FX_INT32 nSize){m_nBufSize = nSize;}
 308         FX_INT32                                                                GetBufSize(){return m_nBufSize;}
 309
 310         void                                                                    RemoveHeads();
 311         void                                                                    RemoveTails();
 312
 313 private:
 314         CFX_ArrayTemplate<IFX_Edit_UndoItem*>   m_UndoItemStack;
 315
 316         FX_INT32                                                                m_nCurUndoPos;
 317         FX_INT32                                                                m_nBufSize;
 318         FX_BOOL                                                                 m_bModified;
 319         FX_BOOL                                                                 m_bVirgin;
 320         FX_BOOL                                                                 m_bWorking;
 321 };
 322
 323 class CFX_Edit_UndoItem : public IFX_Edit_UndoItem
 324 {
 325 public:
 326         CFX_Edit_UndoItem() : m_bFirst(TRUE), m_bLast(TRUE) {}
 327         virtual ~CFX_Edit_UndoItem(){}
 328
 329         virtual CFX_WideString                                  GetUndoTitle() {return L"";}
 330         virtual void                                                    Release(){delete this;}
 331
 332 public:
 333         void                                                                    SetFirst(FX_BOOL bFirst){m_bFirst = bFirst;}
 334         FX_BOOL                                                                 IsFirst(){return m_bFirst;}
 335         void                                                                    SetLast(FX_BOOL bLast){m_bLast = bLast;}
 336         FX_BOOL                                                                 IsLast(){return m_bLast;}
 337
 338 private:
 339         FX_BOOL                                                                 m_bFirst;
 340         FX_BOOL                                                                 m_bLast;
 341 };
 342
 343 class CFX_Edit_GroupUndoItem : public IFX_Edit_UndoItem
 344 {
 345 public:
 346         CFX_Edit_GroupUndoItem(const CFX_WideString& sTitle);
 347         virtual ~CFX_Edit_GroupUndoItem();
 348
 349         void                                                                    AddUndoItem(CFX_Edit_UndoItem* pUndoItem);
 350         void                                                                    UpdateItems();
 351
 352 public:
 353         virtual void                                                    Undo();
 354         virtual void                                                    Redo();
 355         virtual CFX_WideString                                  GetUndoTitle();
 356         virtual void                                                    Release();
 357
 358 private:
 359         CFX_WideString                                                  m_sTitle;
 360         CFX_ArrayTemplate<CFX_Edit_UndoItem*>   m_Items;
 361 };
 362
 363 /* ------------------------- CFX_Edit_UndoItem derived classes ---------------------------- */
 364
 365 class CFXEU_InsertWord : public CFX_Edit_UndoItem
 366 {
 367 public:
 368         CFXEU_InsertWord(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
 369                 FX_WORD word, FX_INT32 charset, const CPVT_WordProps * pWordProps);
 370         virtual ~CFXEU_InsertWord();
 371
 372         void                                            Redo();
 373         void                                            Undo();
 374
 375 private:
 376         CFX_Edit*                                       m_pEdit;
 377
 378         CPVT_WordPlace                          m_wpOld;
 379         CPVT_WordPlace                          m_wpNew;
 380         FX_WORD                                         m_Word;
 381         FX_INT32                                        m_nCharset;
 382         CPVT_WordProps                          m_WordProps;
 383 };
 384
 385 class CFXEU_InsertReturn : public CFX_Edit_UndoItem
 386 {
 387 public:
 388         CFXEU_InsertReturn(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
 389                                                          const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps);
 390         virtual ~CFXEU_InsertReturn();
 391
 392         void                                            Redo();
 393         void                                            Undo();
 394
 395 private:
 396         CFX_Edit *                                      m_pEdit;
 397
 398         CPVT_WordPlace                          m_wpOld;
 399         CPVT_WordPlace                          m_wpNew;
 400         CPVT_SecProps                           m_SecProps;
 401         CPVT_WordProps                          m_WordProps;
 402 };
 403
 404 class CFXEU_Backspace : public CFX_Edit_UndoItem
 405 {
 406 public:
 407         CFXEU_Backspace(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
 408                                                 FX_WORD word, FX_INT32 charset,
 409                                                 const CPVT_SecProps & SecProps, const CPVT_WordProps & WordProps);
 410         virtual ~CFXEU_Backspace();
 411
 412         void                                            Redo();
 413         void                                            Undo();
 414
 415 private:
 416         CFX_Edit *                                      m_pEdit;
 417
 418         CPVT_WordPlace                          m_wpOld;
 419         CPVT_WordPlace                          m_wpNew;
 420         FX_WORD                                         m_Word;
 421         FX_INT32                                        m_nCharset;
 422         CPVT_SecProps                           m_SecProps;
 423         CPVT_WordProps                          m_WordProps;
 424 };
 425
 426 class CFXEU_Delete : public CFX_Edit_UndoItem
 427 {
 428 public:
 429         CFXEU_Delete(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
 430                                                 FX_WORD word, FX_INT32 charset,
 431                                                 const CPVT_SecProps & SecProps, const CPVT_WordProps & WordProps, FX_BOOL bSecEnd);
 432         virtual ~CFXEU_Delete();
 433
 434         void                                            Redo();
 435         void                                            Undo();
 436
 437 private:
 438         CFX_Edit *                                      m_pEdit;
 439
 440         CPVT_WordPlace                          m_wpOld;
 441         CPVT_WordPlace                          m_wpNew;
 442         FX_WORD                                         m_Word;
 443         FX_INT32                                        m_nCharset;
 444         CPVT_SecProps                           m_SecProps;
 445         CPVT_WordProps                          m_WordProps;
 446         FX_BOOL                                         m_bSecEnd;
 447 };
 448
 449 class CFXEU_Clear : public CFX_Edit_UndoItem
 450 {
 451 public:
 452         CFXEU_Clear(CFX_Edit * pEdit, const CPVT_WordRange & wrSel, const CFX_WideString & swText);
 453         virtual ~CFXEU_Clear();
 454
 455         void                                            Redo();
 456         void                                            Undo();
 457
 458 private:
 459         CFX_Edit*                                       m_pEdit;
 460
 461         CPVT_WordRange                          m_wrSel;
 462         CFX_WideString                          m_swText;
 463 };
 464
 465 class CFXEU_ClearRich : public CFX_Edit_UndoItem
 466 {
 467 public:
 468         CFXEU_ClearRich(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
 469                                                 const CPVT_WordRange & wrSel,
 470                                            FX_WORD word, FX_INT32 charset,
 471                                            const CPVT_SecProps & SecProps, const CPVT_WordProps & WordProps);
 472         virtual ~CFXEU_ClearRich();
 473
 474         void                                            Redo();
 475         void                                            Undo();
 476
 477 private:
 478         CFX_Edit *                                      m_pEdit;
 479
 480         CPVT_WordPlace                          m_wpOld;
 481         CPVT_WordPlace                          m_wpNew;
 482         CPVT_WordRange                          m_wrSel;
 483         FX_WORD                                         m_Word;
 484         FX_INT32                                        m_nCharset;
 485         CPVT_SecProps                           m_SecProps;
 486         CPVT_WordProps                          m_WordProps;
 487 };
 488
 489 class CFXEU_InsertText : public CFX_Edit_UndoItem
 490 {
 491 public:
 492         CFXEU_InsertText(CFX_Edit * pEdit, const CPVT_WordPlace & wpOldPlace, const CPVT_WordPlace & wpNewPlace,
 493                                                    const CFX_WideString & swText, FX_INT32 charset,
 494                                                    const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps);
 495         virtual ~CFXEU_InsertText();
 496
 497         void                                            Redo();
 498         void                                            Undo();
 499
 500 private:
 501         CFX_Edit *                                      m_pEdit;
 502
 503         CPVT_WordPlace                          m_wpOld;
 504         CPVT_WordPlace                          m_wpNew;
 505         CFX_WideString                          m_swText;
 506         FX_INT32                                        m_nCharset;
 507         CPVT_SecProps                           m_SecProps;
 508         CPVT_WordProps                          m_WordProps;
 509 };
 510
 511 class CFXEU_SetSecProps : public CFX_Edit_UndoItem
 512 {
 513 public:
 514         CFXEU_SetSecProps(CFX_Edit * pEdit, const CPVT_WordPlace & place, EDIT_PROPS_E ep,
 515                 const CPVT_SecProps & oldsecprops, const CPVT_WordProps & oldwordprops,
 516                 const CPVT_SecProps & newsecprops, const CPVT_WordProps & newwordprops, const CPVT_WordRange & range);
 517         virtual ~CFXEU_SetSecProps();
 518
 519         void                                            Redo();
 520         void                                            Undo();
 521
 522 private:
 523         CFX_Edit *                                      m_pEdit;
 524         CPVT_WordPlace                          m_wpPlace;
 525         CPVT_WordRange                          m_wrPlace;
 526         EDIT_PROPS_E                            m_eProps;
 527
 528         CPVT_SecProps                           m_OldSecProps;
 529         CPVT_SecProps                           m_NewSecProps;
 530         CPVT_WordProps                          m_OldWordProps;
 531         CPVT_WordProps                          m_NewWordProps;
 532 };
 533
 534 class CFXEU_SetWordProps : public CFX_Edit_UndoItem
 535 {
 536 public:
 537         CFXEU_SetWordProps(CFX_Edit * pEdit, const CPVT_WordPlace & place, EDIT_PROPS_E ep,
 538                 const CPVT_WordProps & oldprops, const CPVT_WordProps & newprops, const CPVT_WordRange & range);
 539         virtual ~CFXEU_SetWordProps();
 540
 541         void                                            Redo();
 542         void                                            Undo();
 543
 544 private:
 545         CFX_Edit *                                      m_pEdit;
 546         CPVT_WordPlace                          m_wpPlace;
 547         CPVT_WordRange                          m_wrPlace;
 548         EDIT_PROPS_E                            m_eProps;
 549
 550         CPVT_WordProps                          m_OldWordProps;
 551         CPVT_WordProps                          m_NewWordProps;
 552 };
 553
 554 /* ------------------------- CFX_Edit ---------------------------- */
 555
 556 class CFX_Edit : public IFX_Edit
 557 {
 558         friend class CFX_Edit_Iterator;
 559         friend class CFXEU_InsertWord;
 560         friend class CFXEU_InsertReturn;
 561         friend class CFXEU_Backspace;
 562         friend class CFXEU_Delete;
 563         friend class CFXEU_Clear;
 564         friend class CFXEU_ClearRich;
 565         friend class CFXEU_SetSecProps;
 566         friend class CFXEU_SetWordProps;
 567         friend class CFXEU_InsertText;
 568
 569 public:
 570         CFX_Edit(IPDF_VariableText * pVT);
 571         virtual ~CFX_Edit();
 572
 573         void                                                                    SetFontMap(IFX_Edit_FontMap * pFontMap);
 574         void                                                                    SetVTProvider(IPDF_VariableText_Provider* pProvider);
 575         void                                                                    SetNotify(IFX_Edit_Notify * pNotify);
 576         void                                                                    SetOprNotify(IFX_Edit_OprNotify* pOprNotify);
 577         IFX_Edit_Iterator*                                              GetIterator();
 578         IPDF_VariableText *                                             GetVariableText();
 579         IFX_Edit_FontMap*                                               GetFontMap();
 580
 581         void                                                                    Initialize();
 582         void                                                                    SetPlateRect(const CPDF_Rect & rect, FX_BOOL bPaint = TRUE);
 583         void                                                                    SetScrollPos(const CPDF_Point & point);
 584
 585         void                                                                    SetAlignmentH(FX_INT32 nFormat = 0, FX_BOOL bPaint = TRUE);
 586         void                                                                    SetAlignmentV(FX_INT32 nFormat = 0, FX_BOOL bPaint = TRUE);
 587         void                                                                    SetPasswordChar(FX_WORD wSubWord = '*', FX_BOOL bPaint = TRUE);
 588         void                                                                    SetLimitChar(FX_INT32 nLimitChar = 0, FX_BOOL bPaint = TRUE);
 589         void                                                                    SetCharArray(FX_INT32 nCharArray = 0, FX_BOOL bPaint = TRUE);
 590         void                                                                    SetCharSpace(FX_FLOAT fCharSpace = 0.0f, FX_BOOL bPaint = TRUE);
 591         void                                                                    SetHorzScale(FX_INT32 nHorzScale = 100, FX_BOOL bPaint = TRUE);
 592         void                                                                    SetLineLeading(FX_FLOAT fLineLeading, FX_BOOL bPaint = TRUE);
 593         void                                                                    SetMultiLine(FX_BOOL bMultiLine = TRUE, FX_BOOL bPaint = TRUE);
 594         void                                                                    SetAutoReturn(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE);
 595         void                                                                    SetAutoFontSize(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE);
 596         void                                                                    SetAutoScroll(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE);
 597         void                                                                    SetFontSize(FX_FLOAT fFontSize, FX_BOOL bPaint = TRUE);
 598         void                                                                    SetTextOverflow(FX_BOOL bAllowed = FALSE, FX_BOOL bPaint = TRUE);
 599
 600         FX_BOOL                                                                 IsRichText() const;
 601         void                                                                    SetRichText(FX_BOOL bRichText = TRUE, FX_BOOL bPaint = TRUE);
 602         FX_BOOL                                                                 SetRichFontSize(FX_FLOAT fFontSize);
 603         FX_BOOL                                                                 SetRichFontIndex(FX_INT32 nFontIndex);
 604         FX_BOOL                                                                 SetRichTextColor(FX_COLORREF dwColor);
 605         FX_BOOL                                                                 SetRichTextScript(FX_INT32 nScriptType);
 606         FX_BOOL                                                                 SetRichTextBold(FX_BOOL bBold = TRUE);
 607         FX_BOOL                                                                 SetRichTextItalic(FX_BOOL bItalic = TRUE);
 608         FX_BOOL                                                                 SetRichTextUnderline(FX_BOOL bUnderline = TRUE);
 609         FX_BOOL                                                                 SetRichTextCrossout(FX_BOOL bCrossout = TRUE);
 610         FX_BOOL                                                                 SetRichTextCharSpace(FX_FLOAT fCharSpace);
 611         FX_BOOL                                                                 SetRichTextHorzScale(FX_INT32 nHorzScale = 100);
 612         FX_BOOL                                                                 SetRichTextLineLeading(FX_FLOAT fLineLeading);
 613         FX_BOOL                                                                 SetRichTextLineIndent(FX_FLOAT fLineIndent);
 614         FX_BOOL                                                                 SetRichTextAlignment(FX_INT32 nAlignment);
 615
 616         void                                                                    OnMouseDown(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl);
 617         void                                                                    OnMouseMove(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl);
 618         void                                                                    OnVK_UP(FX_BOOL bShift,FX_BOOL bCtrl);
 619         void                                                                    OnVK_DOWN(FX_BOOL bShift,FX_BOOL bCtrl);
 620         void                                                                    OnVK_LEFT(FX_BOOL bShift,FX_BOOL bCtrl);
 621         void                                                                    OnVK_RIGHT(FX_BOOL bShift,FX_BOOL bCtrl);
 622         void                                                                    OnVK_HOME(FX_BOOL bShift,FX_BOOL bCtrl);
 623         void                                                                    OnVK_END(FX_BOOL bShift,FX_BOOL bCtrl);
 624
 625         void                                                                    SetText(FX_LPCWSTR text,FX_INT32 charset = DEFAULT_CHARSET,
 626                                                                                                         const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL);
 627         FX_BOOL                                                                 InsertWord(FX_WORD word, FX_INT32 charset = DEFAULT_CHARSET, const CPVT_WordProps * pWordProps = NULL);
 628         FX_BOOL                                                                 InsertReturn(const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL);
 629         FX_BOOL                                                                 Backspace();
 630         FX_BOOL                                                                 Delete();
 631         FX_BOOL                                                                 Clear();
 632         FX_BOOL                                                                 Empty();
 633         FX_BOOL                                                                 InsertText(FX_LPCWSTR text, FX_INT32 charset = DEFAULT_CHARSET,
 634                                                                                                         const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL);
 635         FX_BOOL                                                                 Redo();
 636         FX_BOOL                                                                 Undo();
 637         CPVT_WordPlace                                                  DoInsertText(const CPVT_WordPlace& place, FX_LPCWSTR text, FX_INT32 charset,
 638                                                                                                 const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps);
 639         FX_INT32                                                                GetCharSetFromUnicode(FX_WORD word, FX_INT32 nOldCharset);
 640
 641         FX_INT32                                                                WordPlaceToWordIndex(const CPVT_WordPlace & place) const;
 642         CPVT_WordPlace                                                  WordIndexToWordPlace(FX_INT32 index) const;
 643
 644         CPVT_WordPlace                                                  GetLineBeginPlace(const CPVT_WordPlace & place) const;
 645         CPVT_WordPlace                                                  GetLineEndPlace(const CPVT_WordPlace & place) const;
 646         CPVT_WordPlace                                                  GetSectionBeginPlace(const CPVT_WordPlace & place) const;
 647         CPVT_WordPlace                                                  GetSectionEndPlace(const CPVT_WordPlace & place) const;
 648         CPVT_WordPlace                                                  SearchWordPlace(const CPDF_Point& point) const;
 649
 650         FX_INT32                                                                GetCaret() const;
 651         CPVT_WordPlace                                                  GetCaretWordPlace() const;
 652         CFX_WideString                                                  GetSelText() const;
 653         CFX_WideString                                                  GetText() const;
 654         FX_FLOAT                                                                GetFontSize() const;
 655         FX_WORD                                                                 GetPasswordChar() const;
 656         CPDF_Point                                                              GetScrollPos() const;
 657         FX_INT32                                                                GetCharArray() const;
 658         CPDF_Rect                                                               GetPlateRect() const;
 659         CPDF_Rect                                                               GetContentRect() const;
 660         CFX_WideString                                                  GetRangeText(const CPVT_WordRange & range) const;
 661         FX_INT32                                                                GetHorzScale() const;
 662         FX_FLOAT                                                                GetCharSpace() const;
 663         FX_INT32                                                                GetTotalWords() const;
 664         FX_INT32                                                                GetTotalLines() const;
 665
 666         void                                                                    SetSel(FX_INT32 nStartChar,FX_INT32 nEndChar);
 667         void                                                                    GetSel(FX_INT32 & nStartChar, FX_INT32 & nEndChar) const;
 668
 669 private:
 670         void                                                                    SelectAll();
 671         void                                                                    SelectNone();
 672         void                                                                    SetSel(const CPVT_WordPlace & begin,const CPVT_WordPlace & end);
 673         FX_BOOL                                                                 IsSelected() const;
 674
 675         void                                                                    RearrangeAll();
 676         void                                                                    RearrangePart(const CPVT_WordRange & range);
 677         void                                                                    Paint();
 678         void                                                                    ScrollToCaret();
 679         void                                                                    SetScrollInfo();
 680         void                                                                    SetScrollPosX(FX_FLOAT fx);
 681         void                                                                    SetScrollPosY(FX_FLOAT fy);
 682         void                                                                    SetScrollLimit();
 683         void                                                                    SetContentChanged();
 684         void                                                                    EnableNotify(FX_BOOL bNotify);
 685
 686         void                                                                    SetText(FX_LPCWSTR text,FX_INT32 charset,
 687                                                                                                         const CPVT_SecProps * pSecProps,const CPVT_WordProps * pWordProps,FX_BOOL bAddUndo, FX_BOOL bPaint);
 688         FX_BOOL                                                                 InsertWord(FX_WORD word, FX_INT32 charset, const CPVT_WordProps * pWordProps,FX_BOOL bAddUndo, FX_BOOL bPaint);
 689         FX_BOOL                                                                 InsertReturn(const CPVT_SecProps * pSecProps,const CPVT_WordProps * pWordProps,FX_BOOL bAddUndo, FX_BOOL bPaint);
 690         FX_BOOL                                                                 Backspace(FX_BOOL bAddUndo, FX_BOOL bPaint);
 691         FX_BOOL                                                                 Delete(FX_BOOL bAddUndo, FX_BOOL bPaint);
 692         FX_BOOL                                                                 Clear(FX_BOOL bAddUndo, FX_BOOL bPaint);
 693         FX_BOOL                                                                 InsertText(FX_LPCWSTR text, FX_INT32 charset,
 694                                                                                                 const CPVT_SecProps * pSecProps,const CPVT_WordProps * pWordProps,FX_BOOL bAddUndo, FX_BOOL bPaint);
 695         FX_BOOL                                                                 SetRichTextProps(EDIT_PROPS_E eProps,
 696                                                                                                 const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps);
 697         FX_BOOL                                                                 SetSecProps(EDIT_PROPS_E eProps, const CPVT_WordPlace & place,
 698                                                                                                 const CPVT_SecProps * pSecProps, const CPVT_WordProps * pWordProps, const CPVT_WordRange & wr, FX_BOOL bAddUndo);
 699         FX_BOOL                                                                 SetWordProps(EDIT_PROPS_E eProps, const CPVT_WordPlace & place,
 700                                                                                                 const CPVT_WordProps * pWordProps, const CPVT_WordRange & wr, FX_BOOL bAddUndo);
 701         void                                                                    PaintSetProps(EDIT_PROPS_E eProps, const CPVT_WordRange & wr);
 702         void                                                                    PaintInsertText(const CPVT_WordPlace & wpOld, const CPVT_WordPlace & wpNew);
 703
 704         inline CPDF_Point                                               VTToEdit(const CPDF_Point & point) const;
 705         inline CPDF_Point                                               EditToVT(const CPDF_Point & point) const;
 706         inline CPDF_Rect                                                VTToEdit(const CPDF_Rect & rect) const;
 707         inline CPDF_Rect                                                EditToVT(const CPDF_Rect & rect) const;
 708
 709         void                                                                    EnableRefresh(FX_BOOL bRefresh);
 710         void                                                                    Refresh(REFRESH_PLAN_E ePlan,const CPVT_WordRange * pRange1 = NULL,const CPVT_WordRange * pRange2 = NULL);
 711         void                                                                    RefreshPushLineRects(const CPVT_WordRange & wr);
 712         void                                                                    RefreshPushRandomRects(const CPVT_WordRange & wr);
 713         void                                                                    RefreshWordRange(const CPVT_WordRange& wr);
 714
 715         void                                                                    SetCaret(FX_INT32 nPos);
 716         void                                                                    SetCaret(const CPVT_WordPlace & place);
 717         void                                                                    SetCaretInfo();
 718         void                                                                    SetCaretOrigin();
 719         void                                                                    SetCaretChange();
 720
 721         CPVT_WordRange                                                  GetWholeWordRange() const;
 722         CPVT_WordRange                                                  GetVisibleWordRange() const;
 723         CPVT_WordRange                                                  GetLatinWordsRange(const CPVT_WordPlace & place) const;
 724         CPVT_WordRange                                                  CombineWordRange(const CPVT_WordRange & wr1, const CPVT_WordRange & wr2);
 725         CPVT_WordRange                                                  GetSelectWordRange() const;
 726
 727         void                                                                    EnableUndo(FX_BOOL bUndo);
 728         void                                                                    EnableOprNotify(FX_BOOL bNotify);
 729
 730         FX_BOOL                                                                 IsTextFull() const;
 731         FX_BOOL                                                                 IsTextOverflow() const;
 732         FX_BOOL                                                                 CanUndo() const;
 733         FX_BOOL                                                                 CanRedo() const;
 734         FX_BOOL                                                                 IsModified() const;
 735
 736         void                                                                    BeginGroupUndo(const CFX_WideString& sTitle);
 737         void                                                                    EndGroupUndo();
 738         void                                                                    AddEditUndoItem(CFX_Edit_UndoItem* pEditUndoItem);
 739         void                                                                    AddUndoItem(IFX_Edit_UndoItem* pUndoItem);
 740
 741         void                                                                    SetPageInfo(const CPVT_WordPlace& place);
 742         CPVT_WordPlace                                                  SearchPageEndPlace(const CPVT_WordPlace& wpPageBegin, const CPDF_Point& point) const;
 743         FX_FLOAT                                                                GetLineTop(const CPVT_WordPlace& place) const;
 744         FX_FLOAT                                                                GetLineBottom(const CPVT_WordPlace& place) const;
 745
 746 private:
 747         IPDF_VariableText*                                              m_pVT;
 748         IFX_Edit_Notify*                                                m_pNotify;
 749         IFX_Edit_OprNotify*                                             m_pOprNotify;
 750         CFX_Edit_Provider*                                              m_pVTProvide;
 751
 752         CPVT_WordPlace                                                  m_wpCaret;
 753         CPVT_WordPlace                                                  m_wpOldCaret;
 754         CFX_Edit_Select                                                 m_SelState;
 755
 756         CPDF_Point                                                              m_ptScrollPos;
 757         CPDF_Point                                                              m_ptRefreshScrollPos;
 758         FX_BOOL                                                                 m_bEnableScroll;
 759         IFX_Edit_Iterator *                                             m_pIterator;
 760         CFX_Edit_Refresh                                                m_Refresh;
 761         CPDF_Point                                                              m_ptCaret;
 762         CFX_Edit_Undo                                                   m_Undo;
 763         FX_INT32                                                                m_nAlignment;
 764         FX_BOOL                                                                 m_bNotifyFlag;
 765         FX_BOOL                                                                 m_bEnableOverflow;
 766         FX_BOOL                                                                 m_bEnableRefresh;
 767         CPDF_Rect                                                               m_rcOldContent;
 768         FX_BOOL                                                                 m_bEnableUndo;
 769         FX_BOOL                                                                 m_bNotify;
 770         FX_BOOL                                                                 m_bOprNotify;
 771         CFX_Edit_GroupUndoItem*                                 m_pGroupUndoItem;
 772 };
 773
 774 /* ------------------------- CFX_Edit_Iterator ---------------------------- */
 775
 776 class CFX_Edit_Iterator : public IFX_Edit_Iterator
 777 {
 778 public:
 779         CFX_Edit_Iterator(CFX_Edit * pEdit,IPDF_VariableText_Iterator * pVTIterator);
 780         virtual ~CFX_Edit_Iterator();
 781
 782         FX_BOOL                                                                 NextWord();
 783         FX_BOOL                                                                 NextLine();
 784         FX_BOOL                                                                 NextSection();
 785         FX_BOOL                                                                 PrevWord();
 786         FX_BOOL                                                                 PrevLine();
 787         FX_BOOL                                                                 PrevSection();
 788
 789         FX_BOOL                                                                 GetWord(CPVT_Word & word) const;
 790         FX_BOOL                                                                 GetLine(CPVT_Line & line) const;
 791         FX_BOOL                                                                 GetSection(CPVT_Section & section) const;
 792         void                                                                    SetAt(FX_INT32 nWordIndex);
 793         void                                                                    SetAt(const CPVT_WordPlace & place);
 794         const CPVT_WordPlace &                                  GetAt() const;
 795         IFX_Edit*                                                               GetEdit() const;
 796
 797 private:
 798         CFX_Edit *                                                              m_pEdit;
 799         IPDF_VariableText_Iterator*                             m_pVTIterator;
 800 };
 801
 802 class CFX_Edit_Provider : public IPDF_VariableText_Provider
 803 {
 804 public:
 805         CFX_Edit_Provider(IFX_Edit_FontMap* pFontMap);
 806         virtual ~CFX_Edit_Provider();
 807
 808         IFX_Edit_FontMap*                       GetFontMap();
 809
 810         FX_INT32                                        GetCharWidth(FX_INT32 nFontIndex, FX_WORD word, FX_INT32 nWordStyle);
 811         FX_INT32                                        GetTypeAscent(FX_INT32 nFontIndex);
 812         FX_INT32                                        GetTypeDescent(FX_INT32 nFontIndex);
 813         FX_INT32                                        GetWordFontIndex(FX_WORD word, FX_INT32 charset, FX_INT32 nFontIndex);
 814         FX_INT32                                        GetDefaultFontIndex();
 815         FX_BOOL                                         IsLatinWord(FX_WORD word);
 816
 817 private:
 818         IFX_Edit_FontMap*                       m_pFontMap;
 819 };
 820
 821 #endif //_FXET_EDIT_H_
 822