src/html/htmlcell.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        htmlcell.cpp
   3 // Purpose:     wxHtmlCell - basic element of HTML output
   4 // Author:      Vaclav Slavik
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1999 Vaclav Slavik
   7 // Licence:     wxWindows Licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "htmlcell.h"
  12 #endif
  13
  14 #include "wx/wxprec.h"
  15
  16 #include "wx/defs.h"
  17
  18 #if wxUSE_HTML && wxUSE_STREAMS
  19
  20 #ifdef __BORLANDC__
  21 #pragma hdrstop
  22 #endif
  23
  24 #ifndef WXPRECOMP
  25     #include "wx/brush.h"
  26     #include "wx/colour.h"
  27     #include "wx/dc.h"
  28 #endif
  29
  30 #include "wx/html/htmlcell.h"
  31 #include "wx/html/htmlwin.h"
  32 #include "wx/settings.h"
  33 #include "wx/module.h"
  34 #include "wx/dynarray.h"
  35
  36 #include <stdlib.h>
  37
  38 //-----------------------------------------------------------------------------
  39 // Global variables
  40 //-----------------------------------------------------------------------------
  41
  42 static wxCursor *gs_cursorLink = NULL;
  43 static wxCursor *gs_cursorText = NULL;
  44
  45
  46 //-----------------------------------------------------------------------------
  47 // Helper classes
  48 //-----------------------------------------------------------------------------
  49
  50 void wxHtmlSelection::Set(const wxPoint& fromPos, const wxHtmlCell *fromCell,
  51                           const wxPoint& toPos, const wxHtmlCell *toCell)
  52 {
  53     m_fromCell = fromCell;
  54     m_toCell = toCell;
  55     m_fromPos = fromPos;
  56     m_toPos = toPos;
  57 }
  58
  59 void wxHtmlSelection::Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell)
  60 {
  61     wxPoint p1 = fromCell ? fromCell->GetAbsPos() : wxDefaultPosition;
  62     wxPoint p2 = toCell ? toCell->GetAbsPos() : wxDefaultPosition;
  63     if ( toCell )
  64     {
  65         p2.x += toCell->GetWidth();
  66         p2.y += toCell->GetHeight();
  67     }
  68     Set(p1, fromCell, p2, toCell);
  69 }
  70
  71 wxColour
  72 wxDefaultHtmlRenderingStyle::
  73 GetSelectedTextColour(const wxColour& WXUNUSED(clr))
  74 {
  75     return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
  76 }
  77
  78 wxColour
  79 wxDefaultHtmlRenderingStyle::
  80 GetSelectedTextBgColour(const wxColour& WXUNUSED(clr))
  81 {
  82     return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
  83 }
  84
  85
  86 //-----------------------------------------------------------------------------
  87 // wxHtmlCell
  88 //-----------------------------------------------------------------------------
  89
  90 IMPLEMENT_ABSTRACT_CLASS(wxHtmlCell, wxObject)
  91
  92 wxHtmlCell::wxHtmlCell() : wxObject()
  93 {
  94     m_Next = NULL;
  95     m_Parent = NULL;
  96     m_Width = m_Height = m_Descent = 0;
  97     m_CanLiveOnPagebreak = TRUE;
  98     m_Link = NULL;
  99 }
 100
 101 wxHtmlCell::~wxHtmlCell()
 102 {
 103     delete m_Link;
 104 }
 105
 106
 107 void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y,
 108                               const wxMouseEvent& event)
 109 {
 110     wxHtmlLinkInfo *lnk = GetLink(x, y);
 111     if (lnk != NULL)
 112     {
 113         wxHtmlLinkInfo lnk2(*lnk);
 114         lnk2.SetEvent(&event);
 115         lnk2.SetHtmlCell(this);
 116
 117         // note : this cast is legal because parent is *always* wxHtmlWindow
 118         wxStaticCast(parent, wxHtmlWindow)->OnLinkClicked(lnk2);
 119     }
 120 }
 121
 122
 123 wxCursor wxHtmlCell::GetCursor() const
 124 {
 125     if ( GetLink() )
 126     {
 127         if ( !gs_cursorLink )
 128             gs_cursorLink = new wxCursor(wxCURSOR_HAND);
 129         return *gs_cursorLink;
 130     }
 131     else
 132         return *wxSTANDARD_CURSOR;
 133 }
 134
 135
 136 bool wxHtmlCell::AdjustPagebreak(int *pagebreak, int* WXUNUSED(known_pagebreaks), int WXUNUSED(number_of_pages)) const
 137 {
 138     if ((!m_CanLiveOnPagebreak) &&
 139                 m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak)
 140     {
 141         *pagebreak = m_PosY;
 142         return TRUE;
 143     }
 144
 145     return FALSE;
 146 }
 147
 148
 149
 150 void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link)
 151 {
 152     if (m_Link) delete m_Link;
 153     m_Link = NULL;
 154     if (link.GetHref() != wxEmptyString)
 155         m_Link = new wxHtmlLinkInfo(link);
 156 }
 157
 158
 159 void wxHtmlCell::Layout(int WXUNUSED(w))
 160 {
 161     SetPos(0, 0);
 162 }
 163
 164
 165
 166 const wxHtmlCell* wxHtmlCell::Find(int WXUNUSED(condition), const void* WXUNUSED(param)) const
 167 {
 168     return NULL;
 169 }
 170
 171
 172 wxHtmlCell *wxHtmlCell::FindCellByPos(wxCoord x, wxCoord y,
 173                                       unsigned flags) const
 174 {
 175     if ( x >= 0 && x < m_Width && y >= 0 && y < m_Height )
 176     {
 177         return wxConstCast(this, wxHtmlCell);
 178     }
 179     else
 180     {
 181         if ((flags & wxHTML_FIND_NEAREST_AFTER) &&
 182                 (y < 0 || (y < 0+m_Height && x < 0+m_Width)))
 183             return wxConstCast(this, wxHtmlCell);
 184         else if ((flags & wxHTML_FIND_NEAREST_BEFORE) &&
 185                 (y >= 0+m_Height || (y >= 0 && x >= 0)))
 186             return wxConstCast(this, wxHtmlCell);
 187         else
 188             return NULL;
 189     }
 190 }
 191
 192
 193 wxPoint wxHtmlCell::GetAbsPos() const
 194 {
 195     wxPoint p(m_PosX, m_PosY);
 196     for (wxHtmlCell *parent = m_Parent; parent; parent = parent->m_Parent)
 197     {
 198         p.x += parent->m_PosX;
 199         p.y += parent->m_PosY;
 200     }
 201     return p;
 202 }
 203
 204 unsigned wxHtmlCell::GetDepth() const
 205 {
 206     unsigned d = 0;
 207     for (wxHtmlCell *p = m_Parent; p; p = p->m_Parent)
 208         d++;
 209     return d;
 210 }
 211
 212 bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const
 213 {
 214     const wxHtmlCell *c1 = this;
 215     const wxHtmlCell *c2 = cell;
 216     unsigned d1 = GetDepth();
 217     unsigned d2 = cell->GetDepth();
 218
 219     if ( d1 > d2 )
 220         for (; d1 != d2; d1-- )
 221             c1 = c1->m_Parent;
 222     else if ( d1 < d2 )
 223         for (; d1 != d2; d2-- )
 224             c2 = c2->m_Parent;
 225
 226     if ( cell == this )
 227         return true;
 228
 229     while ( c1 && c2 )
 230     {
 231         if ( c1->m_Parent == c2->m_Parent )
 232         {
 233             while ( c1 )
 234             {
 235                 if ( c1 == c2 )
 236                     return true;
 237                 c1 = c1->GetNext();
 238             }
 239             return false;
 240         }
 241         else
 242         {
 243             c1 = c1->m_Parent;
 244             c2 = c2->m_Parent;
 245         }
 246     }
 247
 248     wxFAIL_MSG(_T("Cells are in different trees"));
 249     return false;
 250 }
 251
 252
 253 //-----------------------------------------------------------------------------
 254 // wxHtmlWordCell
 255 //-----------------------------------------------------------------------------
 256
 257 IMPLEMENT_ABSTRACT_CLASS(wxHtmlWordCell, wxHtmlCell)
 258
 259 wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell()
 260 {
 261     m_Word = word;
 262     dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);
 263     SetCanLiveOnPagebreak(FALSE);
 264     m_allowLinebreak = true;
 265 }
 266
 267 void wxHtmlWordCell::SetPreviousWord(wxHtmlWordCell *cell)
 268 {
 269     if ( cell && m_Parent == cell->m_Parent &&
 270          !wxIsspace(cell->m_Word.Last()) && !wxIsspace(m_Word[0u]) )
 271     {
 272         m_allowLinebreak = false;
 273     }
 274 }
 275
 276 // Splits m_Word into up to three parts according to selection, returns
 277 // substring before, in and after selection and the points (in relative coords)
 278 // where s2 and s3 start:
 279 void wxHtmlWordCell::Split(wxDC& dc,
 280                            const wxPoint& selFrom, const wxPoint& selTo,
 281                            unsigned& pos1, unsigned& pos2) const
 282 {
 283     wxPoint pt1 = (selFrom == wxDefaultPosition) ?
 284                    wxDefaultPosition : selFrom - GetAbsPos();
 285     wxPoint pt2 = (selTo == wxDefaultPosition) ?
 286                    wxPoint(m_Width, -1) : selTo - GetAbsPos();
 287
 288     wxCoord charW, charH;
 289     unsigned len = m_Word.length();
 290     unsigned i = 0;
 291     pos1 = 0;
 292
 293     // adjust for cases when the start/end position is completely
 294     // outside the cell:
 295     if ( pt1.y < 0 )
 296         pt1.x = 0;
 297     if ( pt2.y >= m_Height )
 298         pt2.x = m_Width;
 299
 300     // before selection:
 301     while ( pt1.x > 0 && i < len )
 302     {
 303         dc.GetTextExtent(m_Word[i], &charW, &charH);
 304         pt1.x -= charW;
 305         if ( pt1.x >= 0 )
 306         {
 307             pos1 += charW;
 308             i++;
 309         }
 310     }
 311
 312     // in selection:
 313     unsigned j = i;
 314     pos2 = pos1;
 315     pt2.x -= pos2;
 316     while ( pt2.x > 0 && j < len )
 317     {
 318         dc.GetTextExtent(m_Word[j], &charW, &charH);
 319         pt2.x -= charW;
 320         if ( pt2.x >= 0 )
 321         {
 322             pos2 += charW;
 323             j++;
 324         }
 325     }
 326
 327     pos1 = i;
 328     pos2 = j;
 329 }
 330
 331 void wxHtmlWordCell::SetSelectionPrivPos(wxDC& dc, wxHtmlSelection *s) const
 332 {
 333     unsigned p1, p2;
 334
 335     Split(dc,
 336           this == s->GetFromCell() ? s->GetFromPos() : wxDefaultPosition,
 337           this == s->GetToCell() ? s->GetToPos() : wxDefaultPosition,
 338           p1, p2);
 339
 340     wxPoint p(0, m_Word.length());
 341
 342     if ( this == s->GetFromCell() )
 343         p.x = p1; // selection starts here
 344     if ( this == s->GetToCell() )
 345         p.y = p2; // selection ends here
 346
 347     if ( this == s->GetFromCell() )
 348         s->SetFromPrivPos(p);
 349     if ( this == s->GetToCell() )
 350         s->SetToPrivPos(p);
 351 }
 352
 353
 354 static void SwitchSelState(wxDC& dc, wxHtmlRenderingInfo& info,
 355                            bool toSelection)
 356 {
 357     wxColour fg = info.GetState().GetFgColour();
 358     wxColour bg = info.GetState().GetBgColour();
 359
 360     if ( toSelection )
 361     {
 362         dc.SetBackgroundMode(wxSOLID);
 363         dc.SetTextForeground(info.GetStyle().GetSelectedTextColour(fg));
 364         dc.SetTextBackground(info.GetStyle().GetSelectedTextBgColour(bg));
 365         dc.SetBackground(wxBrush(info.GetStyle().GetSelectedTextBgColour(bg),
 366                                  wxSOLID));
 367     }
 368     else
 369     {
 370         dc.SetBackgroundMode(wxTRANSPARENT);
 371         dc.SetTextForeground(fg);
 372         dc.SetTextBackground(bg);
 373         dc.SetBackground(wxBrush(bg, wxSOLID));
 374     }
 375 }
 376
 377
 378 void wxHtmlWordCell::Draw(wxDC& dc, int x, int y,
 379                           int WXUNUSED(view_y1), int WXUNUSED(view_y2),
 380                           wxHtmlRenderingInfo& info)
 381 {
 382 #if 0 // useful for debugging
 383     dc.SetPen(*wxBLACK_PEN);
 384     dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
 385 #endif
 386
 387     bool drawSelectionAfterCell = false;
 388
 389     if ( info.GetState().GetSelectionState() == wxHTML_SEL_CHANGING )
 390     {
 391         // Selection changing, we must draw the word piecewise:
 392         wxHtmlSelection *s = info.GetSelection();
 393         wxString txt;
 394         int w, h;
 395         int ofs = 0;
 396
 397         wxPoint priv = (this == s->GetFromCell()) ?
 398                            s->GetFromPrivPos() : s->GetToPrivPos();
 399
 400         // NB: this is quite a hack: in order to compute selection boundaries
 401         //     (in word's characters) we must know current font, which is only
 402         //     possible inside rendering code. Therefore we update the
 403         //     information here and store it in wxHtmlSelection so that
 404         //     ConvertToText can use it later:
 405         if ( priv == wxDefaultPosition )
 406         {
 407             SetSelectionPrivPos(dc, s);
 408             priv = (this == s->GetFromCell()) ?
 409                     s->GetFromPrivPos() : s->GetToPrivPos();
 410         }
 411
 412         int part1 = priv.x;
 413         int part2 = priv.y;
 414
 415         if ( part1 > 0 )
 416         {
 417             txt = m_Word.Mid(0, part1);
 418             dc.DrawText(txt, x + m_PosX, y + m_PosY);
 419             dc.GetTextExtent(txt, &w, &h);
 420             ofs += w;
 421         }
 422
 423         SwitchSelState(dc, info, true);
 424
 425         txt = m_Word.Mid(part1, part2-part1);
 426         dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY);
 427
 428         if ( (size_t)part2 < m_Word.length() )
 429         {
 430             dc.GetTextExtent(txt, &w, &h);
 431             ofs += w;
 432             SwitchSelState(dc, info, false);
 433             txt = m_Word.Mid(part2);
 434             dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY);
 435         }
 436         else
 437             drawSelectionAfterCell = true;
 438     }
 439     else
 440     {
 441         wxHtmlSelectionState selstate = info.GetState().GetSelectionState();
 442         // Not changing selection state, draw the word in single mode:
 443         if ( selstate != wxHTML_SEL_OUT &&
 444              dc.GetBackgroundMode() != wxSOLID )
 445         {
 446             SwitchSelState(dc, info, true);
 447         }
 448         else if ( selstate == wxHTML_SEL_OUT &&
 449                   dc.GetBackgroundMode() == wxSOLID )
 450         {
 451             SwitchSelState(dc, info, false);
 452         }
 453         dc.DrawText(m_Word, x + m_PosX, y + m_PosY);
 454         drawSelectionAfterCell = (selstate != wxHTML_SEL_OUT);
 455     }
 456
 457     // NB: If the text is justified then there is usually some free space
 458     //     between adjacent cells and drawing the selection only onto cells
 459     //     would result in ugly unselected spaces. The code below detects
 460     //     this special case and renders the selection *outside* the sell,
 461     //     too.
 462     if ( m_Parent->GetAlignHor() == wxHTML_ALIGN_JUSTIFY &&
 463          drawSelectionAfterCell )
 464     {
 465         wxHtmlCell *nextCell = m_Next;
 466         while ( nextCell && nextCell->IsFormattingCell() )
 467             nextCell = nextCell->GetNext();
 468         if ( nextCell )
 469         {
 470             int nextX = nextCell->GetPosX();
 471             if ( m_PosX + m_Width < nextX )
 472             {
 473                 dc.SetBrush(dc.GetBackground());
 474                 dc.SetPen(*wxTRANSPARENT_PEN);
 475                 dc.DrawRectangle(x + m_PosX + m_Width, y + m_PosY,
 476                                  nextX - m_PosX - m_Width, m_Height);
 477             }
 478         }
 479     }
 480 }
 481
 482
 483 wxString wxHtmlWordCell::ConvertToText(wxHtmlSelection *s) const
 484 {
 485     if ( s && (this == s->GetFromCell() || this == s->GetToCell()) )
 486     {
 487         wxPoint priv = this == s->GetFromCell() ? s->GetFromPrivPos()
 488                                                 : s->GetToPrivPos();
 489
 490         // VZ: we may be called before we had a chance to re-render ourselves
 491         //     and in this case GetFrom/ToPrivPos() is not set yet -- assume
 492         //     that this only happens in case of a double/triple click (which
 493         //     seems to be the case now) and so it makes sense to select the
 494         //     entire contents of the cell in this case
 495         //
 496         // TODO: but this really needs to be fixed in some better way later...
 497         if ( priv != wxDefaultPosition )
 498         {
 499             int part1 = priv.x;
 500             int part2 = priv.y;
 501             return m_Word.Mid(part1, part2-part1);
 502         }
 503         //else: return the whole word below
 504     }
 505
 506     return m_Word;
 507 }
 508
 509 wxCursor wxHtmlWordCell::GetCursor() const
 510 {
 511     if ( !GetLink() )
 512     {
 513         if ( !gs_cursorText )
 514             gs_cursorText = new wxCursor(wxCURSOR_IBEAM);
 515         return *gs_cursorText;
 516     }
 517     else
 518         return wxHtmlCell::GetCursor();
 519 }
 520
 521
 522 //-----------------------------------------------------------------------------
 523 // wxHtmlContainerCell
 524 //-----------------------------------------------------------------------------
 525
 526 IMPLEMENT_ABSTRACT_CLASS(wxHtmlContainerCell, wxHtmlCell)
 527
 528 wxHtmlContainerCell::wxHtmlContainerCell(wxHtmlContainerCell *parent) : wxHtmlCell()
 529 {
 530     m_Cells = m_LastCell = NULL;
 531     m_Parent = parent;
 532     if (m_Parent) m_Parent->InsertCell(this);
 533     m_AlignHor = wxHTML_ALIGN_LEFT;
 534     m_AlignVer = wxHTML_ALIGN_BOTTOM;
 535     m_IndentLeft = m_IndentRight = m_IndentTop = m_IndentBottom = 0;
 536     m_WidthFloat = 100; m_WidthFloatUnits = wxHTML_UNITS_PERCENT;
 537     m_UseBkColour = FALSE;
 538     m_UseBorder = FALSE;
 539     m_MinHeight = 0;
 540     m_MinHeightAlign = wxHTML_ALIGN_TOP;
 541     m_LastLayout = -1;
 542 }
 543
 544 wxHtmlContainerCell::~wxHtmlContainerCell()
 545 {
 546     wxHtmlCell *cell = m_Cells;
 547     while ( cell )
 548     {
 549         wxHtmlCell *cellNext = cell->GetNext();
 550         delete cell;
 551         cell = cellNext;
 552     }
 553 }
 554
 555
 556
 557 void wxHtmlContainerCell::SetIndent(int i, int what, int units)
 558 {
 559     int val = (units == wxHTML_UNITS_PIXELS) ? i : -i;
 560     if (what & wxHTML_INDENT_LEFT) m_IndentLeft = val;
 561     if (what & wxHTML_INDENT_RIGHT) m_IndentRight = val;
 562     if (what & wxHTML_INDENT_TOP) m_IndentTop = val;
 563     if (what & wxHTML_INDENT_BOTTOM) m_IndentBottom = val;
 564     m_LastLayout = -1;
 565 }
 566
 567
 568
 569 int wxHtmlContainerCell::GetIndent(int ind) const
 570 {
 571     if (ind & wxHTML_INDENT_LEFT) return m_IndentLeft;
 572     else if (ind & wxHTML_INDENT_RIGHT) return m_IndentRight;
 573     else if (ind & wxHTML_INDENT_TOP) return m_IndentTop;
 574     else if (ind & wxHTML_INDENT_BOTTOM) return m_IndentBottom;
 575     else return -1; /* BUG! Should not be called... */
 576 }
 577
 578
 579
 580
 581 int wxHtmlContainerCell::GetIndentUnits(int ind) const
 582 {
 583     bool p = FALSE;
 584     if (ind & wxHTML_INDENT_LEFT) p = m_IndentLeft < 0;
 585     else if (ind & wxHTML_INDENT_RIGHT) p = m_IndentRight < 0;
 586     else if (ind & wxHTML_INDENT_TOP) p = m_IndentTop < 0;
 587     else if (ind & wxHTML_INDENT_BOTTOM) p = m_IndentBottom < 0;
 588     if (p) return wxHTML_UNITS_PERCENT;
 589     else return wxHTML_UNITS_PIXELS;
 590 }
 591
 592
 593
 594 bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak, int* known_pagebreaks, int number_of_pages) const
 595 {
 596     if (!m_CanLiveOnPagebreak)
 597         return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks, number_of_pages);
 598
 599     else
 600     {
 601         wxHtmlCell *c = GetFirstChild();
 602         bool rt = FALSE;
 603         int pbrk = *pagebreak - m_PosY;
 604
 605         while (c)
 606         {
 607             if (c->AdjustPagebreak(&pbrk, known_pagebreaks, number_of_pages))
 608                 rt = TRUE;
 609             c = c->GetNext();
 610         }
 611         if (rt)
 612             *pagebreak = pbrk + m_PosY;
 613         return rt;
 614     }
 615 }
 616
 617
 618
 619 void wxHtmlContainerCell::Layout(int w)
 620 {
 621     wxHtmlCell::Layout(w);
 622
 623     if (m_LastLayout == w) return;
 624
 625     // VS: Any attempt to layout with negative or zero width leads to hell,
 626     // but we can't ignore such attempts completely, since it sometimes
 627     // happen (e.g. when trying how small a table can be). The best thing we
 628     // can do is to set the width of child cells to zero
 629     if (w < 1)
 630     {
 631        m_Width = 0;
 632        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 633             cell->Layout(0);
 634             // this does two things: it recursively calls this code on all
 635             // child contrainers and resets children's position to (0,0)
 636        return;
 637     }
 638
 639     wxHtmlCell *cell = m_Cells, *line = m_Cells;
 640     wxHtmlCell *nextCell;
 641     long xpos = 0, ypos = m_IndentTop;
 642     int xdelta = 0, ybasicpos = 0, ydiff;
 643     int s_width, nextWordWidth, s_indent;
 644     int ysizeup = 0, ysizedown = 0;
 645     int MaxLineWidth = 0;
 646     int xcnt = 0;
 647
 648
 649     /*
 650
 651     WIDTH ADJUSTING :
 652
 653     */
 654
 655     if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
 656     {
 657         if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
 658         else m_Width = m_WidthFloat * w / 100;
 659     }
 660     else
 661     {
 662         if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
 663         else m_Width = m_WidthFloat;
 664     }
 665
 666     if (m_Cells)
 667     {
 668         int l = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
 669         int r = (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight;
 670         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 671             cell->Layout(m_Width - (l + r));
 672     }
 673
 674     /*
 675
 676     LAYOUTING :
 677
 678     */
 679
 680     // adjust indentation:
 681     s_indent = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
 682     s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 683
 684     // my own layouting:
 685     while (cell != NULL)
 686     {
 687         switch (m_AlignVer)
 688         {
 689             case wxHTML_ALIGN_TOP :      ybasicpos = 0; break;
 690             case wxHTML_ALIGN_BOTTOM :   ybasicpos = - cell->GetHeight(); break;
 691             case wxHTML_ALIGN_CENTER :   ybasicpos = - cell->GetHeight() / 2; break;
 692         }
 693         ydiff = cell->GetHeight() + ybasicpos;
 694
 695         if (cell->GetDescent() + ydiff > ysizedown) ysizedown = cell->GetDescent() + ydiff;
 696         if (ybasicpos + cell->GetDescent() < -ysizeup) ysizeup = - (ybasicpos + cell->GetDescent());
 697
 698         // layout nonbreakable run of cells:
 699         cell->SetPos(xpos, ybasicpos + cell->GetDescent());
 700         xpos += cell->GetWidth();
 701         cell = cell->GetNext();
 702         xcnt++;
 703
 704         // compute length of the next word that would be added:
 705         nextWordWidth = 0;
 706         if (cell)
 707         {
 708             nextCell = cell;
 709             do
 710             {
 711                 nextWordWidth += nextCell->GetWidth();
 712                 nextCell = nextCell->GetNext();
 713             } while (nextCell && !nextCell->IsLinebreakAllowed());
 714         }
 715
 716         // force new line if occured:
 717         if ((cell == NULL) ||
 718             (xpos + nextWordWidth > s_width && cell->IsLinebreakAllowed()))
 719         {
 720             if (xpos > MaxLineWidth) MaxLineWidth = xpos;
 721             if (ysizeup < 0) ysizeup = 0;
 722             if (ysizedown < 0) ysizedown = 0;
 723             switch (m_AlignHor) {
 724                 case wxHTML_ALIGN_LEFT :
 725                 case wxHTML_ALIGN_JUSTIFY :
 726                          xdelta = 0;
 727                          break;
 728                 case wxHTML_ALIGN_RIGHT :
 729                          xdelta = 0 + (s_width - xpos);
 730                          break;
 731                 case wxHTML_ALIGN_CENTER :
 732                          xdelta = 0 + (s_width - xpos) / 2;
 733                          break;
 734             }
 735             if (xdelta < 0) xdelta = 0;
 736             xdelta += s_indent;
 737
 738             ypos += ysizeup;
 739
 740             if (m_AlignHor != wxHTML_ALIGN_JUSTIFY || cell == NULL)
 741                 while (line != cell)
 742                 {
 743                     line->SetPos(line->GetPosX() + xdelta,
 744                                    ypos + line->GetPosY());
 745                     line = line->GetNext();
 746                 }
 747             else
 748             {
 749                 int counter = 0;
 750                 int step = (s_width - xpos);
 751                 if (step < 0) step = 0;
 752                 xcnt--;
 753                 if (xcnt > 0) while (line != cell)
 754                 {
 755                     line->SetPos(line->GetPosX() + s_indent +
 756                                    (counter++ * step / xcnt),
 757                                    ypos + line->GetPosY());
 758                     line = line->GetNext();
 759                 }
 760             }
 761
 762             ypos += ysizedown;
 763             xpos = xcnt = 0;
 764             ysizeup = ysizedown = 0;
 765             line = cell;
 766         }
 767     }
 768
 769     // setup height & width, depending on container layout:
 770     m_Height = ypos + (ysizedown + ysizeup) + m_IndentBottom;
 771
 772     if (m_Height < m_MinHeight)
 773     {
 774         if (m_MinHeightAlign != wxHTML_ALIGN_TOP)
 775         {
 776             int diff = m_MinHeight - m_Height;
 777             if (m_MinHeightAlign == wxHTML_ALIGN_CENTER) diff /= 2;
 778             cell = m_Cells;
 779             while (cell)
 780             {
 781                 cell->SetPos(cell->GetPosX(), cell->GetPosY() + diff);
 782                 cell = cell->GetNext();
 783             }
 784         }
 785         m_Height = m_MinHeight;
 786     }
 787
 788     MaxLineWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 789     if (m_Width < MaxLineWidth) m_Width = MaxLineWidth;
 790
 791     m_LastLayout = w;
 792 }
 793
 794 void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingInfo& info,
 795                                                   wxHtmlCell *cell) const
 796 {
 797     wxHtmlSelection *s = info.GetSelection();
 798     if (!s) return;
 799     if (s->GetFromCell() == cell || s->GetToCell() == cell)
 800     {
 801         info.GetState().SetSelectionState(wxHTML_SEL_CHANGING);
 802     }
 803 }
 804
 805 void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingInfo& info,
 806                                                    wxHtmlCell *cell) const
 807 {
 808     wxHtmlSelection *s = info.GetSelection();
 809     if (!s) return;
 810     if (s->GetToCell() == cell)
 811         info.GetState().SetSelectionState(wxHTML_SEL_OUT);
 812     else if (s->GetFromCell() == cell)
 813         info.GetState().SetSelectionState(wxHTML_SEL_IN);
 814 }
 815
 816 #define mMin(a, b) (((a) < (b)) ? (a) : (b))
 817 #define mMax(a, b) (((a) < (b)) ? (b) : (a))
 818
 819 void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
 820                                wxHtmlRenderingInfo& info)
 821 {
 822 #if 0 // useful for debugging
 823     dc.SetPen(*wxRED_PEN);
 824     dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
 825 #endif
 826     // container visible, draw it:
 827     if ((y + m_PosY <= view_y2) && (y + m_PosY + m_Height > view_y1))
 828     {
 829         if (m_UseBkColour)
 830         {
 831             wxBrush myb = wxBrush(m_BkColour, wxSOLID);
 832
 833             int real_y1 = mMax(y + m_PosY, view_y1);
 834             int real_y2 = mMin(y + m_PosY + m_Height - 1, view_y2);
 835
 836             dc.SetBrush(myb);
 837             dc.SetPen(*wxTRANSPARENT_PEN);
 838             dc.DrawRectangle(x + m_PosX, real_y1, m_Width, real_y2 - real_y1 + 1);
 839         }
 840
 841         if (m_UseBorder)
 842         {
 843             wxPen mypen1(m_BorderColour1, 1, wxSOLID);
 844             wxPen mypen2(m_BorderColour2, 1, wxSOLID);
 845
 846             dc.SetPen(mypen1);
 847             dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX, y + m_PosY + m_Height - 1);
 848             dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX + m_Width, y + m_PosY);
 849             dc.SetPen(mypen2);
 850             dc.DrawLine(x + m_PosX + m_Width - 1, y + m_PosY, x + m_PosX +  m_Width - 1, y + m_PosY + m_Height - 1);
 851             dc.DrawLine(x + m_PosX, y + m_PosY + m_Height - 1, x + m_PosX + m_Width, y + m_PosY + m_Height - 1);
 852         }
 853
 854         if (m_Cells)
 855         {
 856             // draw container's contents:
 857             for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 858             {
 859                 UpdateRenderingStatePre(info, cell);
 860                 cell->Draw(dc,
 861                            x + m_PosX, y + m_PosY, view_y1, view_y2,
 862                            info);
 863                 UpdateRenderingStatePost(info, cell);
 864             }
 865         }
 866     }
 867     // container invisible, just proceed font+color changing:
 868     else
 869     {
 870         DrawInvisible(dc, x, y, info);
 871     }
 872 }
 873
 874
 875
 876 void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y,
 877                                         wxHtmlRenderingInfo& info)
 878 {
 879     if (m_Cells)
 880     {
 881         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 882         {
 883             UpdateRenderingStatePre(info, cell);
 884             cell->DrawInvisible(dc, x + m_PosX, y + m_PosY, info);
 885             UpdateRenderingStatePost(info, cell);
 886         }
 887     }
 888 }
 889
 890
 891 wxColour wxHtmlContainerCell::GetBackgroundColour()
 892 {
 893     if (m_UseBkColour)
 894         return m_BkColour;
 895     else
 896         return wxNullColour;
 897 }
 898
 899
 900
 901 wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const
 902 {
 903     wxHtmlCell *cell = FindCellByPos(x, y);
 904
 905     // VZ: I don't know if we should pass absolute or relative coords to
 906     //     wxHtmlCell::GetLink()? As the base class version just ignores them
 907     //     anyhow, it hardly matters right now but should still be clarified
 908     return cell ? cell->GetLink(x, y) : NULL;
 909 }
 910
 911
 912
 913 void wxHtmlContainerCell::InsertCell(wxHtmlCell *f)
 914 {
 915     if (!m_Cells) m_Cells = m_LastCell = f;
 916     else
 917     {
 918         m_LastCell->SetNext(f);
 919         m_LastCell = f;
 920         if (m_LastCell) while (m_LastCell->GetNext()) m_LastCell = m_LastCell->GetNext();
 921     }
 922     f->SetParent(this);
 923     m_LastLayout = -1;
 924 }
 925
 926
 927
 928 void wxHtmlContainerCell::SetAlign(const wxHtmlTag& tag)
 929 {
 930     if (tag.HasParam(wxT("ALIGN")))
 931     {
 932         wxString alg = tag.GetParam(wxT("ALIGN"));
 933         alg.MakeUpper();
 934         if (alg == wxT("CENTER"))
 935             SetAlignHor(wxHTML_ALIGN_CENTER);
 936         else if (alg == wxT("LEFT"))
 937             SetAlignHor(wxHTML_ALIGN_LEFT);
 938         else if (alg == wxT("JUSTIFY"))
 939             SetAlignHor(wxHTML_ALIGN_JUSTIFY);
 940         else if (alg == wxT("RIGHT"))
 941             SetAlignHor(wxHTML_ALIGN_RIGHT);
 942         m_LastLayout = -1;
 943     }
 944 }
 945
 946
 947
 948 void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale)
 949 {
 950     if (tag.HasParam(wxT("WIDTH")))
 951     {
 952         int wdi;
 953         wxString wd = tag.GetParam(wxT("WIDTH"));
 954
 955         if (wd[wd.Length()-1] == wxT('%'))
 956         {
 957             wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);
 958             SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
 959         }
 960         else
 961         {
 962             wxSscanf(wd.c_str(), wxT("%i"), &wdi);
 963             SetWidthFloat((int)(pixel_scale * (double)wdi), wxHTML_UNITS_PIXELS);
 964         }
 965         m_LastLayout = -1;
 966     }
 967 }
 968
 969
 970
 971 const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) const
 972 {
 973     if (m_Cells)
 974     {
 975         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 976         {
 977             const wxHtmlCell *r = cell->Find(condition, param);
 978             if (r) return r;
 979         }
 980     }
 981     return NULL;
 982 }
 983
 984
 985 wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y,
 986                                                unsigned flags) const
 987 {
 988     if ( flags & wxHTML_FIND_EXACT )
 989     {
 990         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
 991         {
 992             int cx = cell->GetPosX(),
 993                 cy = cell->GetPosY();
 994
 995             if ( (cx <= x) && (cx + cell->GetWidth() > x) &&
 996                  (cy <= y) && (cy + cell->GetHeight() > y) )
 997             {
 998                 return cell->FindCellByPos(x - cx, y - cy, flags);
 999             }
1000         }
1001     }
1002     else if ( flags & wxHTML_FIND_NEAREST_AFTER )
1003     {
1004         wxHtmlCell *c;
1005         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
1006         {
1007             if ( cell->IsFormattingCell() )
1008                 continue;
1009             int cellY = cell->GetPosY();
1010             if (!( y < cellY || (y < cellY + cell->GetHeight() &&
1011                                  x < cell->GetPosX() + cell->GetWidth()) ))
1012                 continue;
1013
1014             c = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
1015             if (c) return c;
1016         }
1017     }
1018     else if ( flags & wxHTML_FIND_NEAREST_BEFORE )
1019     {
1020         wxHtmlCell *c2, *c = NULL;
1021         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
1022         {
1023             if ( cell->IsFormattingCell() )
1024                 continue;
1025             int cellY = cell->GetPosY();
1026             if (!( cellY + cell->GetHeight() <= y ||
1027                    (y >= cellY && x >= cell->GetPosX()) ))
1028                 break;
1029             c2 = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
1030             if (c2)
1031                 c = c2;
1032         }
1033         if (c) return c;
1034     }
1035
1036     return NULL;
1037 }
1038
1039
1040 void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event)
1041 {
1042     wxHtmlCell *cell = FindCellByPos(x, y);
1043     if ( cell )
1044         cell->OnMouseClick(parent, x, y, event);
1045 }
1046
1047
1048
1049 wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const
1050 {
1051     if ( m_Cells )
1052     {
1053         wxHtmlCell *c2;
1054         for (wxHtmlCell *c = m_Cells; c; c = c->GetNext())
1055         {
1056             c2 = c->GetFirstTerminal();
1057             if ( c2 )
1058                 return c2;
1059         }
1060     }
1061     return NULL;
1062 }
1063
1064 wxHtmlCell *wxHtmlContainerCell::GetLastTerminal() const
1065 {
1066     if ( m_Cells )
1067     {
1068         // most common case first:
1069         wxHtmlCell *c = m_LastCell->GetLastTerminal();
1070         if ( c )
1071             return c;
1072
1073         wxHtmlCell *ctmp;
1074         wxHtmlCell *c2 = NULL;
1075         for (c = m_Cells; c; c = c->GetNext())
1076         {
1077             ctmp = c->GetLastTerminal();
1078             if ( ctmp )
1079                 c2 = ctmp;
1080         }
1081         return c2;
1082     }
1083     else
1084         return NULL;
1085 }
1086
1087
1088 static bool IsEmptyContainer(wxHtmlContainerCell *cell)
1089 {
1090     for ( wxHtmlCell *c = cell->GetFirstChild(); c; c = c->GetNext() )
1091     {
1092         if ( !c->IsTerminalCell() || !c->IsFormattingCell() )
1093             return false;
1094     }
1095     return true;
1096 }
1097
1098 void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom)
1099 {
1100     if ( top )
1101         SetIndent(0, wxHTML_INDENT_TOP);
1102     if ( bottom )
1103         SetIndent(0, wxHTML_INDENT_BOTTOM);
1104
1105     if ( m_Cells )
1106     {
1107         wxHtmlCell *c;
1108         wxHtmlContainerCell *cont;
1109         if ( top )
1110         {
1111             for ( c = m_Cells; c; c = c->GetNext() )
1112             {
1113                 if ( c->IsTerminalCell() )
1114                 {
1115                     if ( !c->IsFormattingCell() )
1116                         break;
1117                 }
1118                 else
1119                 {
1120                     cont = (wxHtmlContainerCell*)c;
1121                     if ( IsEmptyContainer(cont) )
1122                     {
1123                         cont->SetIndent(0, wxHTML_INDENT_VERTICAL);
1124                     }
1125                     else
1126                     {
1127                         cont->RemoveExtraSpacing(true, false);
1128                         break;
1129                     }
1130                 }
1131             }
1132         }
1133
1134         if ( bottom )
1135         {
1136             wxArrayPtrVoid arr;
1137             for ( c = m_Cells; c; c = c->GetNext() )
1138                 arr.Add((void*)c);
1139
1140             for ( int i = arr.GetCount() - 1; i >= 0; i--)
1141             {
1142                 c = (wxHtmlCell*)arr[i];
1143                 if ( c->IsTerminalCell() )
1144                 {
1145                     if ( !c->IsFormattingCell() )
1146                         break;
1147                 }
1148                 else
1149                 {
1150                     cont = (wxHtmlContainerCell*)c;
1151                     if ( IsEmptyContainer(cont) )
1152                     {
1153                         cont->SetIndent(0, wxHTML_INDENT_VERTICAL);                                 }
1154                     else
1155                     {
1156                         cont->RemoveExtraSpacing(false, true);
1157                         break;
1158                     }
1159                 }
1160             }
1161         }
1162     }
1163 }
1164
1165
1166
1167
1168 // --------------------------------------------------------------------------
1169 // wxHtmlColourCell
1170 // --------------------------------------------------------------------------
1171
1172 IMPLEMENT_ABSTRACT_CLASS(wxHtmlColourCell, wxHtmlCell)
1173
1174 void wxHtmlColourCell::Draw(wxDC& dc,
1175                             int x, int y,
1176                             int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1177                             wxHtmlRenderingInfo& info)
1178 {
1179     DrawInvisible(dc, x, y, info);
1180 }
1181
1182 void wxHtmlColourCell::DrawInvisible(wxDC& dc,
1183                                      int WXUNUSED(x), int WXUNUSED(y),
1184                                      wxHtmlRenderingInfo& info)
1185 {
1186     wxHtmlRenderingState& state = info.GetState();
1187     if (m_Flags & wxHTML_CLR_FOREGROUND)
1188     {
1189         state.SetFgColour(m_Colour);
1190         if (state.GetSelectionState() != wxHTML_SEL_IN)
1191             dc.SetTextForeground(m_Colour);
1192         else
1193             dc.SetTextForeground(
1194                     info.GetStyle().GetSelectedTextColour(m_Colour));
1195     }
1196     if (m_Flags & wxHTML_CLR_BACKGROUND)
1197     {
1198         state.SetBgColour(m_Colour);
1199         if (state.GetSelectionState() != wxHTML_SEL_IN)
1200         {
1201             dc.SetTextBackground(m_Colour);
1202             dc.SetBackground(wxBrush(m_Colour, wxSOLID));
1203         }
1204         else
1205         {
1206             wxColour c = info.GetStyle().GetSelectedTextBgColour(m_Colour);
1207             dc.SetTextBackground(c);
1208             dc.SetBackground(wxBrush(c, wxSOLID));
1209         }
1210     }
1211 }
1212
1213
1214
1215
1216 // ---------------------------------------------------------------------------
1217 // wxHtmlFontCell
1218 // ---------------------------------------------------------------------------
1219
1220 IMPLEMENT_ABSTRACT_CLASS(wxHtmlFontCell, wxHtmlCell)
1221
1222 void wxHtmlFontCell::Draw(wxDC& dc,
1223                           int WXUNUSED(x), int WXUNUSED(y),
1224                           int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1225                           wxHtmlRenderingInfo& WXUNUSED(info))
1226 {
1227     dc.SetFont(m_Font);
1228 }
1229
1230 void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y),
1231                                    wxHtmlRenderingInfo& WXUNUSED(info))
1232 {
1233     dc.SetFont(m_Font);
1234 }
1235
1236
1237
1238
1239
1240
1241
1242
1243 // ---------------------------------------------------------------------------
1244 // wxHtmlWidgetCell
1245 // ---------------------------------------------------------------------------
1246
1247 IMPLEMENT_ABSTRACT_CLASS(wxHtmlWidgetCell, wxHtmlCell)
1248
1249 wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
1250 {
1251     int sx, sy;
1252     m_Wnd = wnd;
1253     m_Wnd->GetSize(&sx, &sy);
1254     m_Width = sx, m_Height = sy;
1255     m_WidthFloat = w;
1256 }
1257
1258
1259 void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc),
1260                             int WXUNUSED(x), int WXUNUSED(y),
1261                             int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1262                             wxHtmlRenderingInfo& WXUNUSED(info))
1263 {
1264     int absx = 0, absy = 0, stx, sty;
1265     wxHtmlCell *c = this;
1266
1267     while (c)
1268     {
1269         absx += c->GetPosX();
1270         absy += c->GetPosY();
1271         c = c->GetParent();
1272     }
1273
1274     ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
1275     m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
1276 }
1277
1278
1279
1280 void wxHtmlWidgetCell::DrawInvisible(wxDC& WXUNUSED(dc),
1281                                      int WXUNUSED(x), int WXUNUSED(y),
1282                                      wxHtmlRenderingInfo& WXUNUSED(info))
1283 {
1284     int absx = 0, absy = 0, stx, sty;
1285     wxHtmlCell *c = this;
1286
1287     while (c)
1288     {
1289         absx += c->GetPosX();
1290         absy += c->GetPosY();
1291         c = c->GetParent();
1292     }
1293
1294     ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
1295     m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
1296 }
1297
1298
1299
1300 void wxHtmlWidgetCell::Layout(int w)
1301 {
1302     if (m_WidthFloat != 0)
1303     {
1304         m_Width = (w * m_WidthFloat) / 100;
1305         m_Wnd->SetSize(m_Width, m_Height);
1306     }
1307
1308     wxHtmlCell::Layout(w);
1309 }
1310
1311
1312
1313 // ----------------------------------------------------------------------------
1314 // wxHtmlTerminalCellsInterator
1315 // ----------------------------------------------------------------------------
1316
1317 const wxHtmlCell* wxHtmlTerminalCellsInterator::operator++()
1318 {
1319     if ( !m_pos )
1320         return NULL;
1321
1322     do
1323     {
1324         if ( m_pos == m_to )
1325         {
1326             m_pos = NULL;
1327             return NULL;
1328         }
1329
1330         if ( m_pos->GetNext() )
1331             m_pos = m_pos->GetNext();
1332         else
1333         {
1334             // we must go up the hierarchy until we reach container where this
1335             // is not the last child, and then go down to first terminal cell:
1336             while ( m_pos->GetNext() == NULL )
1337             {
1338                 m_pos = m_pos->GetParent();
1339                 if ( !m_pos )
1340                     return NULL;
1341             }
1342             m_pos = m_pos->GetNext();
1343         }
1344         while ( m_pos->GetFirstChild() != NULL )
1345             m_pos = m_pos->GetFirstChild();
1346     } while ( !m_pos->IsTerminalCell() );
1347
1348     return m_pos;
1349 }
1350
1351
1352
1353
1354
1355
1356
1357 //-----------------------------------------------------------------------------
1358 // Cleanup
1359 //-----------------------------------------------------------------------------
1360
1361 class wxHtmlCellModule: public wxModule
1362 {
1363 DECLARE_DYNAMIC_CLASS(wxHtmlCellModule)
1364 public:
1365     wxHtmlCellModule() : wxModule() {}
1366     bool OnInit() { return true; }
1367     void OnExit()
1368     {
1369         wxDELETE(gs_cursorLink);
1370         wxDELETE(gs_cursorText);
1371     }
1372 };
1373
1374 IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellModule, wxModule)
1375
1376 #endif