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, wxDefaultPosition.y) : 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 /* VZ: +1? */ ,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     m_MaxTotalWidth = 0;
 533     if (m_Parent) m_Parent->InsertCell(this);
 534     m_AlignHor = wxHTML_ALIGN_LEFT;
 535     m_AlignVer = wxHTML_ALIGN_BOTTOM;
 536     m_IndentLeft = m_IndentRight = m_IndentTop = m_IndentBottom = 0;
 537     m_WidthFloat = 100; m_WidthFloatUnits = wxHTML_UNITS_PERCENT;
 538     m_UseBkColour = false;
 539     m_UseBorder = false;
 540     m_MinHeight = 0;
 541     m_MinHeightAlign = wxHTML_ALIGN_TOP;
 542     m_LastLayout = -1;
 543 }
 544
 545 wxHtmlContainerCell::~wxHtmlContainerCell()
 546 {
 547     wxHtmlCell *cell = m_Cells;
 548     while ( cell )
 549     {
 550         wxHtmlCell *cellNext = cell->GetNext();
 551         delete cell;
 552         cell = cellNext;
 553     }
 554 }
 555
 556
 557
 558 void wxHtmlContainerCell::SetIndent(int i, int what, int units)
 559 {
 560     int val = (units == wxHTML_UNITS_PIXELS) ? i : -i;
 561     if (what & wxHTML_INDENT_LEFT) m_IndentLeft = val;
 562     if (what & wxHTML_INDENT_RIGHT) m_IndentRight = val;
 563     if (what & wxHTML_INDENT_TOP) m_IndentTop = val;
 564     if (what & wxHTML_INDENT_BOTTOM) m_IndentBottom = val;
 565     m_LastLayout = -1;
 566 }
 567
 568
 569
 570 int wxHtmlContainerCell::GetIndent(int ind) const
 571 {
 572     if (ind & wxHTML_INDENT_LEFT) return m_IndentLeft;
 573     else if (ind & wxHTML_INDENT_RIGHT) return m_IndentRight;
 574     else if (ind & wxHTML_INDENT_TOP) return m_IndentTop;
 575     else if (ind & wxHTML_INDENT_BOTTOM) return m_IndentBottom;
 576     else return -1; /* BUG! Should not be called... */
 577 }
 578
 579
 580
 581
 582 int wxHtmlContainerCell::GetIndentUnits(int ind) const
 583 {
 584     bool p = false;
 585     if (ind & wxHTML_INDENT_LEFT) p = m_IndentLeft < 0;
 586     else if (ind & wxHTML_INDENT_RIGHT) p = m_IndentRight < 0;
 587     else if (ind & wxHTML_INDENT_TOP) p = m_IndentTop < 0;
 588     else if (ind & wxHTML_INDENT_BOTTOM) p = m_IndentBottom < 0;
 589     if (p) return wxHTML_UNITS_PERCENT;
 590     else return wxHTML_UNITS_PIXELS;
 591 }
 592
 593
 594
 595 bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak, int* known_pagebreaks, int number_of_pages) const
 596 {
 597     if (!m_CanLiveOnPagebreak)
 598         return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks, number_of_pages);
 599
 600     else
 601     {
 602         wxHtmlCell *c = GetFirstChild();
 603         bool rt = false;
 604         int pbrk = *pagebreak - m_PosY;
 605
 606         while (c)
 607         {
 608             if (c->AdjustPagebreak(&pbrk, known_pagebreaks, number_of_pages))
 609                 rt = true;
 610             c = c->GetNext();
 611         }
 612         if (rt)
 613             *pagebreak = pbrk + m_PosY;
 614         return rt;
 615     }
 616 }
 617
 618
 619
 620 void wxHtmlContainerCell::Layout(int w)
 621 {
 622     wxHtmlCell::Layout(w);
 623
 624     if (m_LastLayout == w) return;
 625
 626     // VS: Any attempt to layout with negative or zero width leads to hell,
 627     // but we can't ignore such attempts completely, since it sometimes
 628     // happen (e.g. when trying how small a table can be). The best thing we
 629     // can do is to set the width of child cells to zero
 630     if (w < 1)
 631     {
 632        m_Width = 0;
 633        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 634             cell->Layout(0);
 635             // this does two things: it recursively calls this code on all
 636             // child contrainers and resets children's position to (0,0)
 637        return;
 638     }
 639
 640     wxHtmlCell *cell = m_Cells,
 641                *line = m_Cells;
 642     wxHtmlCell *nextCell;
 643     long xpos = 0, ypos = m_IndentTop;
 644     int xdelta = 0, ybasicpos = 0, ydiff;
 645     int s_width, nextWordWidth, s_indent;
 646     int ysizeup = 0, ysizedown = 0;
 647     int MaxLineWidth = 0;
 648     int curLineWidth = 0;
 649     m_MaxTotalWidth = 0;
 650
 651
 652     /*
 653
 654     WIDTH ADJUSTING :
 655
 656     */
 657
 658     if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
 659     {
 660         if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
 661         else m_Width = m_WidthFloat * w / 100;
 662     }
 663     else
 664     {
 665         if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
 666         else m_Width = m_WidthFloat;
 667     }
 668
 669     if (m_Cells)
 670     {
 671         int l = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
 672         int r = (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight;
 673         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 674             cell->Layout(m_Width - (l + r));
 675     }
 676
 677     /*
 678
 679     LAYOUTING :
 680
 681     */
 682
 683     // adjust indentation:
 684     s_indent = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
 685     s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 686
 687     // my own layouting:
 688     while (cell != NULL)
 689     {
 690         switch (m_AlignVer)
 691         {
 692             case wxHTML_ALIGN_TOP :      ybasicpos = 0; break;
 693             case wxHTML_ALIGN_BOTTOM :   ybasicpos = - cell->GetHeight(); break;
 694             case wxHTML_ALIGN_CENTER :   ybasicpos = - cell->GetHeight() / 2; break;
 695         }
 696         ydiff = cell->GetHeight() + ybasicpos;
 697
 698         if (cell->GetDescent() + ydiff > ysizedown) ysizedown = cell->GetDescent() + ydiff;
 699         if (ybasicpos + cell->GetDescent() < -ysizeup) ysizeup = - (ybasicpos + cell->GetDescent());
 700
 701         // layout nonbreakable run of cells:
 702         cell->SetPos(xpos, ybasicpos + cell->GetDescent());
 703         xpos += cell->GetWidth();
 704         if (!cell->IsTerminalCell())
 705         {
 706             // Container cell indicates new line
 707             if (curLineWidth > m_MaxTotalWidth)
 708                 m_MaxTotalWidth = curLineWidth;
 709
 710             if (wxMax(cell->GetWidth(), cell->GetMaxTotalWidth()) > m_MaxTotalWidth)
 711                 m_MaxTotalWidth = cell->GetMaxTotalWidth();
 712             curLineWidth = 0;
 713         }
 714         else
 715             // Normal cell, add maximum cell width to line width
 716             curLineWidth += cell->GetMaxTotalWidth();
 717
 718         cell = cell->GetNext();
 719
 720         // compute length of the next word that would be added:
 721         nextWordWidth = 0;
 722         if (cell)
 723         {
 724             nextCell = cell;
 725             do
 726             {
 727                 nextWordWidth += nextCell->GetWidth();
 728                 nextCell = nextCell->GetNext();
 729             } while (nextCell && !nextCell->IsLinebreakAllowed());
 730         }
 731
 732         // force new line if occured:
 733         if ((cell == NULL) ||
 734             (xpos + nextWordWidth > s_width && cell->IsLinebreakAllowed()))
 735         {
 736             if (xpos > MaxLineWidth) MaxLineWidth = xpos;
 737             if (ysizeup < 0) ysizeup = 0;
 738             if (ysizedown < 0) ysizedown = 0;
 739             switch (m_AlignHor) {
 740                 case wxHTML_ALIGN_LEFT :
 741                 case wxHTML_ALIGN_JUSTIFY :
 742                          xdelta = 0;
 743                          break;
 744                 case wxHTML_ALIGN_RIGHT :
 745                          xdelta = 0 + (s_width - xpos);
 746                          break;
 747                 case wxHTML_ALIGN_CENTER :
 748                          xdelta = 0 + (s_width - xpos) / 2;
 749                          break;
 750             }
 751             if (xdelta < 0) xdelta = 0;
 752             xdelta += s_indent;
 753
 754             ypos += ysizeup;
 755
 756             if (m_AlignHor != wxHTML_ALIGN_JUSTIFY || cell == NULL)
 757             {
 758                 while (line != cell)
 759                 {
 760                     line->SetPos(line->GetPosX() + xdelta,
 761                                    ypos + line->GetPosY());
 762                     line = line->GetNext();
 763                 }
 764             }
 765             else // align == justify
 766             {
 767                 // we have to distribute the extra horz space between the cells
 768                 // on this line
 769
 770                 // an added complication is that some cells have fixed size and
 771                 // shouldn't get any increment (it so happens that these cells
 772                 // also don't allow line break on them which provides with an
 773                 // easy way to test for this) -- and neither should the cells
 774                 // adjacent to them as this could result in a visible space
 775                 // between two cells separated by, e.g. font change, cell which
 776                 // is wrong
 777
 778                 const int step = s_width - xpos;
 779                 if ( step > 0 )
 780                 {
 781                     // first count the cells which will get extra space
 782                     int total = 0;
 783
 784                     const wxHtmlCell *c,
 785                                      *prev = NULL,
 786                                      *next = NULL;
 787                     for ( c = line; c != cell; prev = c, c = next )
 788                     {
 789                         next = c->GetNext();
 790                         if ( c->IsLinebreakAllowed() &&
 791                                 (next == cell || next->IsLinebreakAllowed()) &&
 792                                     (!prev || prev->IsLinebreakAllowed()) )
 793                         {
 794                             total++;
 795                         }
 796                     }
 797
 798                     // and now extra space to those cells which merit it
 799                     if ( total )
 800                     {
 801                         prev =
 802                         next = NULL;
 803                         for ( int n = 0; line != cell; line = line->GetNext() )
 804                         {
 805                             line->SetPos(line->GetPosX() + s_indent +
 806                                            ((n * step) / total),
 807                                            line->GetPosY() + ypos);
 808
 809                             next = line->GetNext();
 810                             if ( line->IsLinebreakAllowed() &&
 811                                     (next == cell ||
 812                                         next->IsLinebreakAllowed()) &&
 813                                         (!prev || prev->IsLinebreakAllowed()) )
 814                             {
 815                                 // offset the next cell relative to this one
 816                                 // thus increasing our size
 817                                 n++;
 818                             }
 819                         }
 820                     }
 821                 }
 822                 else // no extra space to distribute
 823                 {
 824                     // just set the indent properly
 825                     while (line != cell)
 826                     {
 827                         line->SetPos(line->GetPosX() + s_indent,
 828                                      line->GetPosY() + ypos);
 829                         line = line->GetNext();
 830                     }
 831                 }
 832             }
 833
 834             ypos += ysizedown;
 835             xpos = 0;
 836             ysizeup = ysizedown = 0;
 837             line = cell;
 838         }
 839     }
 840
 841     // setup height & width, depending on container layout:
 842     m_Height = ypos + (ysizedown + ysizeup) + m_IndentBottom;
 843
 844     if (m_Height < m_MinHeight)
 845     {
 846         if (m_MinHeightAlign != wxHTML_ALIGN_TOP)
 847         {
 848             int diff = m_MinHeight - m_Height;
 849             if (m_MinHeightAlign == wxHTML_ALIGN_CENTER) diff /= 2;
 850             cell = m_Cells;
 851             while (cell)
 852             {
 853                 cell->SetPos(cell->GetPosX(), cell->GetPosY() + diff);
 854                 cell = cell->GetNext();
 855             }
 856         }
 857         m_Height = m_MinHeight;
 858     }
 859
 860     if (curLineWidth > m_MaxTotalWidth)
 861         m_MaxTotalWidth = curLineWidth;
 862
 863     m_MaxTotalWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 864     MaxLineWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 865     if (m_Width < MaxLineWidth) m_Width = MaxLineWidth;
 866
 867     m_LastLayout = w;
 868 }
 869
 870 void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingInfo& info,
 871                                                   wxHtmlCell *cell) const
 872 {
 873     wxHtmlSelection *s = info.GetSelection();
 874     if (!s) return;
 875     if (s->GetFromCell() == cell || s->GetToCell() == cell)
 876     {
 877         info.GetState().SetSelectionState(wxHTML_SEL_CHANGING);
 878     }
 879 }
 880
 881 void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingInfo& info,
 882                                                    wxHtmlCell *cell) const
 883 {
 884     wxHtmlSelection *s = info.GetSelection();
 885     if (!s) return;
 886     if (s->GetToCell() == cell)
 887         info.GetState().SetSelectionState(wxHTML_SEL_OUT);
 888     else if (s->GetFromCell() == cell)
 889         info.GetState().SetSelectionState(wxHTML_SEL_IN);
 890 }
 891
 892 #define mMin(a, b) (((a) < (b)) ? (a) : (b))
 893 #define mMax(a, b) (((a) < (b)) ? (b) : (a))
 894
 895 void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
 896                                wxHtmlRenderingInfo& info)
 897 {
 898 #if 0 // useful for debugging
 899     dc.SetPen(*wxRED_PEN);
 900     dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
 901 #endif
 902     // container visible, draw it:
 903     if ((y + m_PosY <= view_y2) && (y + m_PosY + m_Height > view_y1))
 904     {
 905         if (m_UseBkColour)
 906         {
 907             wxBrush myb = wxBrush(m_BkColour, wxSOLID);
 908
 909             int real_y1 = mMax(y + m_PosY, view_y1);
 910             int real_y2 = mMin(y + m_PosY + m_Height - 1, view_y2);
 911
 912             dc.SetBrush(myb);
 913             dc.SetPen(*wxTRANSPARENT_PEN);
 914             dc.DrawRectangle(x + m_PosX, real_y1, m_Width, real_y2 - real_y1 + 1);
 915         }
 916
 917         if (m_UseBorder)
 918         {
 919             wxPen mypen1(m_BorderColour1, 1, wxSOLID);
 920             wxPen mypen2(m_BorderColour2, 1, wxSOLID);
 921
 922             dc.SetPen(mypen1);
 923             dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX, y + m_PosY + m_Height - 1);
 924             dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX + m_Width, y + m_PosY);
 925             dc.SetPen(mypen2);
 926             dc.DrawLine(x + m_PosX + m_Width - 1, y + m_PosY, x + m_PosX +  m_Width - 1, y + m_PosY + m_Height - 1);
 927             dc.DrawLine(x + m_PosX, y + m_PosY + m_Height - 1, x + m_PosX + m_Width, y + m_PosY + m_Height - 1);
 928         }
 929
 930         if (m_Cells)
 931         {
 932             // draw container's contents:
 933             for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 934             {
 935                 UpdateRenderingStatePre(info, cell);
 936                 cell->Draw(dc,
 937                            x + m_PosX, y + m_PosY, view_y1, view_y2,
 938                            info);
 939                 UpdateRenderingStatePost(info, cell);
 940             }
 941         }
 942     }
 943     // container invisible, just proceed font+color changing:
 944     else
 945     {
 946         DrawInvisible(dc, x, y, info);
 947     }
 948 }
 949
 950
 951
 952 void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y,
 953                                         wxHtmlRenderingInfo& info)
 954 {
 955     if (m_Cells)
 956     {
 957         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 958         {
 959             UpdateRenderingStatePre(info, cell);
 960             cell->DrawInvisible(dc, x + m_PosX, y + m_PosY, info);
 961             UpdateRenderingStatePost(info, cell);
 962         }
 963     }
 964 }
 965
 966
 967 wxColour wxHtmlContainerCell::GetBackgroundColour()
 968 {
 969     if (m_UseBkColour)
 970         return m_BkColour;
 971     else
 972         return wxNullColour;
 973 }
 974
 975
 976
 977 wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const
 978 {
 979     wxHtmlCell *cell = FindCellByPos(x, y);
 980
 981     // VZ: I don't know if we should pass absolute or relative coords to
 982     //     wxHtmlCell::GetLink()? As the base class version just ignores them
 983     //     anyhow, it hardly matters right now but should still be clarified
 984     return cell ? cell->GetLink(x, y) : NULL;
 985 }
 986
 987
 988
 989 void wxHtmlContainerCell::InsertCell(wxHtmlCell *f)
 990 {
 991     if (!m_Cells) m_Cells = m_LastCell = f;
 992     else
 993     {
 994         m_LastCell->SetNext(f);
 995         m_LastCell = f;
 996         if (m_LastCell) while (m_LastCell->GetNext()) m_LastCell = m_LastCell->GetNext();
 997     }
 998     f->SetParent(this);
 999     m_LastLayout = -1;
1000 }
1001
1002
1003
1004 void wxHtmlContainerCell::SetAlign(const wxHtmlTag& tag)
1005 {
1006     if (tag.HasParam(wxT("ALIGN")))
1007     {
1008         wxString alg = tag.GetParam(wxT("ALIGN"));
1009         alg.MakeUpper();
1010         if (alg == wxT("CENTER"))
1011             SetAlignHor(wxHTML_ALIGN_CENTER);
1012         else if (alg == wxT("LEFT"))
1013             SetAlignHor(wxHTML_ALIGN_LEFT);
1014         else if (alg == wxT("JUSTIFY"))
1015             SetAlignHor(wxHTML_ALIGN_JUSTIFY);
1016         else if (alg == wxT("RIGHT"))
1017             SetAlignHor(wxHTML_ALIGN_RIGHT);
1018         m_LastLayout = -1;
1019     }
1020 }
1021
1022
1023
1024 void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale)
1025 {
1026     if (tag.HasParam(wxT("WIDTH")))
1027     {
1028         int wdi;
1029         wxString wd = tag.GetParam(wxT("WIDTH"));
1030
1031         if (wd[wd.Length()-1] == wxT('%'))
1032         {
1033             wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);
1034             SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
1035         }
1036         else
1037         {
1038             wxSscanf(wd.c_str(), wxT("%i"), &wdi);
1039             SetWidthFloat((int)(pixel_scale * (double)wdi), wxHTML_UNITS_PIXELS);
1040         }
1041         m_LastLayout = -1;
1042     }
1043 }
1044
1045
1046
1047 const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) const
1048 {
1049     if (m_Cells)
1050     {
1051         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
1052         {
1053             const wxHtmlCell *r = cell->Find(condition, param);
1054             if (r) return r;
1055         }
1056     }
1057     return NULL;
1058 }
1059
1060
1061 wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y,
1062                                                unsigned flags) const
1063 {
1064     if ( flags & wxHTML_FIND_EXACT )
1065     {
1066         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
1067         {
1068             int cx = cell->GetPosX(),
1069                 cy = cell->GetPosY();
1070
1071             if ( (cx <= x) && (cx + cell->GetWidth() > x) &&
1072                  (cy <= y) && (cy + cell->GetHeight() > y) )
1073             {
1074                 return cell->FindCellByPos(x - cx, y - cy, flags);
1075             }
1076         }
1077     }
1078     else if ( flags & wxHTML_FIND_NEAREST_AFTER )
1079     {
1080         wxHtmlCell *c;
1081         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
1082         {
1083             if ( cell->IsFormattingCell() )
1084                 continue;
1085             int cellY = cell->GetPosY();
1086             if (!( y < cellY || (y < cellY + cell->GetHeight() &&
1087                                  x < cell->GetPosX() + cell->GetWidth()) ))
1088                 continue;
1089
1090             c = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
1091             if (c) return c;
1092         }
1093     }
1094     else if ( flags & wxHTML_FIND_NEAREST_BEFORE )
1095     {
1096         wxHtmlCell *c2, *c = NULL;
1097         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
1098         {
1099             if ( cell->IsFormattingCell() )
1100                 continue;
1101             int cellY = cell->GetPosY();
1102             if (!( cellY + cell->GetHeight() <= y ||
1103                    (y >= cellY && x >= cell->GetPosX()) ))
1104                 break;
1105             c2 = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
1106             if (c2)
1107                 c = c2;
1108         }
1109         if (c) return c;
1110     }
1111
1112     return NULL;
1113 }
1114
1115
1116 void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event)
1117 {
1118     wxHtmlCell *cell = FindCellByPos(x, y);
1119     if ( cell )
1120         cell->OnMouseClick(parent, x, y, event);
1121 }
1122
1123
1124
1125 wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const
1126 {
1127     if ( m_Cells )
1128     {
1129         wxHtmlCell *c2;
1130         for (wxHtmlCell *c = m_Cells; c; c = c->GetNext())
1131         {
1132             c2 = c->GetFirstTerminal();
1133             if ( c2 )
1134                 return c2;
1135         }
1136     }
1137     return NULL;
1138 }
1139
1140 wxHtmlCell *wxHtmlContainerCell::GetLastTerminal() const
1141 {
1142     if ( m_Cells )
1143     {
1144         // most common case first:
1145         wxHtmlCell *c = m_LastCell->GetLastTerminal();
1146         if ( c )
1147             return c;
1148
1149         wxHtmlCell *ctmp;
1150         wxHtmlCell *c2 = NULL;
1151         for (c = m_Cells; c; c = c->GetNext())
1152         {
1153             ctmp = c->GetLastTerminal();
1154             if ( ctmp )
1155                 c2 = ctmp;
1156         }
1157         return c2;
1158     }
1159     else
1160         return NULL;
1161 }
1162
1163
1164 static bool IsEmptyContainer(wxHtmlContainerCell *cell)
1165 {
1166     for ( wxHtmlCell *c = cell->GetFirstChild(); c; c = c->GetNext() )
1167     {
1168         if ( !c->IsTerminalCell() || !c->IsFormattingCell() )
1169             return false;
1170     }
1171     return true;
1172 }
1173
1174 void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom)
1175 {
1176     if ( top )
1177         SetIndent(0, wxHTML_INDENT_TOP);
1178     if ( bottom )
1179         SetIndent(0, wxHTML_INDENT_BOTTOM);
1180
1181     if ( m_Cells )
1182     {
1183         wxHtmlCell *c;
1184         wxHtmlContainerCell *cont;
1185         if ( top )
1186         {
1187             for ( c = m_Cells; c; c = c->GetNext() )
1188             {
1189                 if ( c->IsTerminalCell() )
1190                 {
1191                     if ( !c->IsFormattingCell() )
1192                         break;
1193                 }
1194                 else
1195                 {
1196                     cont = (wxHtmlContainerCell*)c;
1197                     if ( IsEmptyContainer(cont) )
1198                     {
1199                         cont->SetIndent(0, wxHTML_INDENT_VERTICAL);
1200                     }
1201                     else
1202                     {
1203                         cont->RemoveExtraSpacing(true, false);
1204                         break;
1205                     }
1206                 }
1207             }
1208         }
1209
1210         if ( bottom )
1211         {
1212             wxArrayPtrVoid arr;
1213             for ( c = m_Cells; c; c = c->GetNext() )
1214                 arr.Add((void*)c);
1215
1216             for ( int i = arr.GetCount() - 1; i >= 0; i--)
1217             {
1218                 c = (wxHtmlCell*)arr[i];
1219                 if ( c->IsTerminalCell() )
1220                 {
1221                     if ( !c->IsFormattingCell() )
1222                         break;
1223                 }
1224                 else
1225                 {
1226                     cont = (wxHtmlContainerCell*)c;
1227                     if ( IsEmptyContainer(cont) )
1228                     {
1229                         cont->SetIndent(0, wxHTML_INDENT_VERTICAL);                                 }
1230                     else
1231                     {
1232                         cont->RemoveExtraSpacing(false, true);
1233                         break;
1234                     }
1235                 }
1236             }
1237         }
1238     }
1239 }
1240
1241
1242
1243
1244 // --------------------------------------------------------------------------
1245 // wxHtmlColourCell
1246 // --------------------------------------------------------------------------
1247
1248 IMPLEMENT_ABSTRACT_CLASS(wxHtmlColourCell, wxHtmlCell)
1249
1250 void wxHtmlColourCell::Draw(wxDC& dc,
1251                             int x, int y,
1252                             int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1253                             wxHtmlRenderingInfo& info)
1254 {
1255     DrawInvisible(dc, x, y, info);
1256 }
1257
1258 void wxHtmlColourCell::DrawInvisible(wxDC& dc,
1259                                      int WXUNUSED(x), int WXUNUSED(y),
1260                                      wxHtmlRenderingInfo& info)
1261 {
1262     wxHtmlRenderingState& state = info.GetState();
1263     if (m_Flags & wxHTML_CLR_FOREGROUND)
1264     {
1265         state.SetFgColour(m_Colour);
1266         if (state.GetSelectionState() != wxHTML_SEL_IN)
1267             dc.SetTextForeground(m_Colour);
1268         else
1269             dc.SetTextForeground(
1270                     info.GetStyle().GetSelectedTextColour(m_Colour));
1271     }
1272     if (m_Flags & wxHTML_CLR_BACKGROUND)
1273     {
1274         state.SetBgColour(m_Colour);
1275         if (state.GetSelectionState() != wxHTML_SEL_IN)
1276         {
1277             dc.SetTextBackground(m_Colour);
1278             dc.SetBackground(wxBrush(m_Colour, wxSOLID));
1279         }
1280         else
1281         {
1282             wxColour c = info.GetStyle().GetSelectedTextBgColour(m_Colour);
1283             dc.SetTextBackground(c);
1284             dc.SetBackground(wxBrush(c, wxSOLID));
1285         }
1286     }
1287 }
1288
1289
1290
1291
1292 // ---------------------------------------------------------------------------
1293 // wxHtmlFontCell
1294 // ---------------------------------------------------------------------------
1295
1296 IMPLEMENT_ABSTRACT_CLASS(wxHtmlFontCell, wxHtmlCell)
1297
1298 void wxHtmlFontCell::Draw(wxDC& dc,
1299                           int WXUNUSED(x), int WXUNUSED(y),
1300                           int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1301                           wxHtmlRenderingInfo& WXUNUSED(info))
1302 {
1303     dc.SetFont(m_Font);
1304 }
1305
1306 void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y),
1307                                    wxHtmlRenderingInfo& WXUNUSED(info))
1308 {
1309     dc.SetFont(m_Font);
1310 }
1311
1312
1313
1314
1315
1316
1317
1318
1319 // ---------------------------------------------------------------------------
1320 // wxHtmlWidgetCell
1321 // ---------------------------------------------------------------------------
1322
1323 IMPLEMENT_ABSTRACT_CLASS(wxHtmlWidgetCell, wxHtmlCell)
1324
1325 wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
1326 {
1327     int sx, sy;
1328     m_Wnd = wnd;
1329     m_Wnd->GetSize(&sx, &sy);
1330     m_Width = sx, m_Height = sy;
1331     m_WidthFloat = w;
1332 }
1333
1334
1335 void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc),
1336                             int WXUNUSED(x), int WXUNUSED(y),
1337                             int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1338                             wxHtmlRenderingInfo& WXUNUSED(info))
1339 {
1340     int absx = 0, absy = 0, stx, sty;
1341     wxHtmlCell *c = this;
1342
1343     while (c)
1344     {
1345         absx += c->GetPosX();
1346         absy += c->GetPosY();
1347         c = c->GetParent();
1348     }
1349
1350     ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
1351     m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
1352 }
1353
1354
1355
1356 void wxHtmlWidgetCell::DrawInvisible(wxDC& WXUNUSED(dc),
1357                                      int WXUNUSED(x), int WXUNUSED(y),
1358                                      wxHtmlRenderingInfo& WXUNUSED(info))
1359 {
1360     int absx = 0, absy = 0, stx, sty;
1361     wxHtmlCell *c = this;
1362
1363     while (c)
1364     {
1365         absx += c->GetPosX();
1366         absy += c->GetPosY();
1367         c = c->GetParent();
1368     }
1369
1370     ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
1371     m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
1372 }
1373
1374
1375
1376 void wxHtmlWidgetCell::Layout(int w)
1377 {
1378     if (m_WidthFloat != 0)
1379     {
1380         m_Width = (w * m_WidthFloat) / 100;
1381         m_Wnd->SetSize(m_Width, m_Height);
1382     }
1383
1384     wxHtmlCell::Layout(w);
1385 }
1386
1387
1388
1389 // ----------------------------------------------------------------------------
1390 // wxHtmlTerminalCellsInterator
1391 // ----------------------------------------------------------------------------
1392
1393 const wxHtmlCell* wxHtmlTerminalCellsInterator::operator++()
1394 {
1395     if ( !m_pos )
1396         return NULL;
1397
1398     do
1399     {
1400         if ( m_pos == m_to )
1401         {
1402             m_pos = NULL;
1403             return NULL;
1404         }
1405
1406         if ( m_pos->GetNext() )
1407             m_pos = m_pos->GetNext();
1408         else
1409         {
1410             // we must go up the hierarchy until we reach container where this
1411             // is not the last child, and then go down to first terminal cell:
1412             while ( m_pos->GetNext() == NULL )
1413             {
1414                 m_pos = m_pos->GetParent();
1415                 if ( !m_pos )
1416                     return NULL;
1417             }
1418             m_pos = m_pos->GetNext();
1419         }
1420         while ( m_pos->GetFirstChild() != NULL )
1421             m_pos = m_pos->GetFirstChild();
1422     } while ( !m_pos->IsTerminalCell() );
1423
1424     return m_pos;
1425 }
1426
1427
1428
1429
1430
1431
1432
1433 //-----------------------------------------------------------------------------
1434 // Cleanup
1435 //-----------------------------------------------------------------------------
1436
1437 class wxHtmlCellModule: public wxModule
1438 {
1439 DECLARE_DYNAMIC_CLASS(wxHtmlCellModule)
1440 public:
1441     wxHtmlCellModule() : wxModule() {}
1442     bool OnInit() { return true; }
1443     void OnExit()
1444     {
1445         wxDELETE(gs_cursorLink);
1446         wxDELETE(gs_cursorText);
1447     }
1448 };
1449
1450 IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellModule, wxModule)
1451
1452 #endif