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, wxDefaultCoord) : 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                 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                     if ( line != cell )
 786                     {
 787                         for ( c = line->GetNext(); c != cell; c = c->GetNext() )
 788                         {
 789                             if ( c->IsLinebreakAllowed() )
 790                             {
 791                                 total++;
 792                             }
 793                         }
 794                     }
 795
 796                     // and now extra space to those cells which merit it
 797                     if ( total )
 798                     {
 799                         // first cell on line is not moved:
 800                         line->SetPos(line->GetPosX() + s_indent,
 801                                      line->GetPosY() + ypos);
 802
 803                         line = line->GetNext();
 804                         for ( int n = 0; line != cell; line = line->GetNext() )
 805                         {
 806                             if ( line->IsLinebreakAllowed() )
 807                             {
 808                                 // offset the next cell relative to this one
 809                                 // thus increasing our size
 810                                 n++;
 811                             }
 812
 813                             line->SetPos(line->GetPosX() + s_indent +
 814                                            ((n * step) / total),
 815                                            line->GetPosY() + ypos);
 816                         }
 817                     }
 818                     else
 819                     {
 820                         // this will cause the code to enter "else branch" below:
 821                         step = 0;
 822                     }
 823                 }
 824                 // else branch:
 825                 if ( step <= 0 ) // no extra space to distribute
 826                 {
 827                     // just set the indent properly
 828                     while (line != cell)
 829                     {
 830                         line->SetPos(line->GetPosX() + s_indent,
 831                                      line->GetPosY() + ypos);
 832                         line = line->GetNext();
 833                     }
 834                 }
 835             }
 836
 837             ypos += ysizedown;
 838             xpos = 0;
 839             ysizeup = ysizedown = 0;
 840             line = cell;
 841         }
 842     }
 843
 844     // setup height & width, depending on container layout:
 845     m_Height = ypos + (ysizedown + ysizeup) + m_IndentBottom;
 846
 847     if (m_Height < m_MinHeight)
 848     {
 849         if (m_MinHeightAlign != wxHTML_ALIGN_TOP)
 850         {
 851             int diff = m_MinHeight - m_Height;
 852             if (m_MinHeightAlign == wxHTML_ALIGN_CENTER) diff /= 2;
 853             cell = m_Cells;
 854             while (cell)
 855             {
 856                 cell->SetPos(cell->GetPosX(), cell->GetPosY() + diff);
 857                 cell = cell->GetNext();
 858             }
 859         }
 860         m_Height = m_MinHeight;
 861     }
 862
 863     if (curLineWidth > m_MaxTotalWidth)
 864         m_MaxTotalWidth = curLineWidth;
 865
 866     m_MaxTotalWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 867     MaxLineWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 868     if (m_Width < MaxLineWidth) m_Width = MaxLineWidth;
 869
 870     m_LastLayout = w;
 871 }
 872
 873 void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingInfo& info,
 874                                                   wxHtmlCell *cell) const
 875 {
 876     wxHtmlSelection *s = info.GetSelection();
 877     if (!s) return;
 878     if (s->GetFromCell() == cell || s->GetToCell() == cell)
 879     {
 880         info.GetState().SetSelectionState(wxHTML_SEL_CHANGING);
 881     }
 882 }
 883
 884 void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingInfo& info,
 885                                                    wxHtmlCell *cell) const
 886 {
 887     wxHtmlSelection *s = info.GetSelection();
 888     if (!s) return;
 889     if (s->GetToCell() == cell)
 890         info.GetState().SetSelectionState(wxHTML_SEL_OUT);
 891     else if (s->GetFromCell() == cell)
 892         info.GetState().SetSelectionState(wxHTML_SEL_IN);
 893 }
 894
 895 #define mMin(a, b) (((a) < (b)) ? (a) : (b))
 896 #define mMax(a, b) (((a) < (b)) ? (b) : (a))
 897
 898 void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
 899                                wxHtmlRenderingInfo& info)
 900 {
 901 #if 0 // useful for debugging
 902     dc.SetPen(*wxRED_PEN);
 903     dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
 904 #endif
 905
 906     int xlocal = x + m_PosX;
 907     int ylocal = y + m_PosY;
 908
 909     if (m_UseBkColour)
 910     {
 911         wxBrush myb = wxBrush(m_BkColour, wxSOLID);
 912
 913         int real_y1 = mMax(ylocal, view_y1);
 914         int real_y2 = mMin(ylocal + m_Height - 1, view_y2);
 915
 916         dc.SetBrush(myb);
 917         dc.SetPen(*wxTRANSPARENT_PEN);
 918         dc.DrawRectangle(xlocal, real_y1, m_Width, real_y2 - real_y1 + 1);
 919     }
 920
 921     if (m_UseBorder)
 922     {
 923         wxPen mypen1(m_BorderColour1, 1, wxSOLID);
 924         wxPen mypen2(m_BorderColour2, 1, wxSOLID);
 925
 926         dc.SetPen(mypen1);
 927         dc.DrawLine(xlocal, ylocal, xlocal, ylocal + m_Height - 1);
 928         dc.DrawLine(xlocal, ylocal, xlocal + m_Width, ylocal);
 929         dc.SetPen(mypen2);
 930         dc.DrawLine(xlocal + m_Width - 1, ylocal, xlocal +  m_Width - 1, ylocal + m_Height - 1);
 931         dc.DrawLine(xlocal, ylocal + m_Height - 1, xlocal + m_Width, ylocal + m_Height - 1);
 932     }
 933
 934     if (m_Cells)
 935     {
 936         // draw container's contents:
 937         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 938         {
 939
 940             // optimize drawing: don't render off-screen content:
 941             if ((ylocal + cell->GetPosY() <= view_y2) &&
 942                 (ylocal + cell->GetPosY() + cell->GetHeight() > view_y1))
 943             {
 944                 // the cell is visible, draw it:
 945                 UpdateRenderingStatePre(info, cell);
 946                 cell->Draw(dc,
 947                            xlocal, ylocal, view_y1, view_y2,
 948                            info);
 949                 UpdateRenderingStatePost(info, cell);
 950             }
 951             else
 952             {
 953                 // the cell is off-screen, proceed with font+color+etc.
 954                 // changes only:
 955                 cell->DrawInvisible(dc, xlocal, ylocal, info);
 956             }
 957         }
 958     }
 959 }
 960
 961
 962
 963 void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y,
 964                                         wxHtmlRenderingInfo& info)
 965 {
 966     if (m_Cells)
 967     {
 968         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 969         {
 970             UpdateRenderingStatePre(info, cell);
 971             cell->DrawInvisible(dc, x + m_PosX, y + m_PosY, info);
 972             UpdateRenderingStatePost(info, cell);
 973         }
 974     }
 975 }
 976
 977
 978 wxColour wxHtmlContainerCell::GetBackgroundColour()
 979 {
 980     if (m_UseBkColour)
 981         return m_BkColour;
 982     else
 983         return wxNullColour;
 984 }
 985
 986
 987
 988 wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const
 989 {
 990     wxHtmlCell *cell = FindCellByPos(x, y);
 991
 992     // VZ: I don't know if we should pass absolute or relative coords to
 993     //     wxHtmlCell::GetLink()? As the base class version just ignores them
 994     //     anyhow, it hardly matters right now but should still be clarified
 995     return cell ? cell->GetLink(x, y) : NULL;
 996 }
 997
 998
 999
1000 void wxHtmlContainerCell::InsertCell(wxHtmlCell *f)
1001 {
1002     if (!m_Cells) m_Cells = m_LastCell = f;
1003     else
1004     {
1005         m_LastCell->SetNext(f);
1006         m_LastCell = f;
1007         if (m_LastCell) while (m_LastCell->GetNext()) m_LastCell = m_LastCell->GetNext();
1008     }
1009     f->SetParent(this);
1010     m_LastLayout = -1;
1011 }
1012
1013
1014
1015 void wxHtmlContainerCell::SetAlign(const wxHtmlTag& tag)
1016 {
1017     if (tag.HasParam(wxT("ALIGN")))
1018     {
1019         wxString alg = tag.GetParam(wxT("ALIGN"));
1020         alg.MakeUpper();
1021         if (alg == wxT("CENTER"))
1022             SetAlignHor(wxHTML_ALIGN_CENTER);
1023         else if (alg == wxT("LEFT"))
1024             SetAlignHor(wxHTML_ALIGN_LEFT);
1025         else if (alg == wxT("JUSTIFY"))
1026             SetAlignHor(wxHTML_ALIGN_JUSTIFY);
1027         else if (alg == wxT("RIGHT"))
1028             SetAlignHor(wxHTML_ALIGN_RIGHT);
1029         m_LastLayout = -1;
1030     }
1031 }
1032
1033
1034
1035 void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale)
1036 {
1037     if (tag.HasParam(wxT("WIDTH")))
1038     {
1039         int wdi;
1040         wxString wd = tag.GetParam(wxT("WIDTH"));
1041
1042         if (wd[wd.Length()-1] == wxT('%'))
1043         {
1044             wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);
1045             SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
1046         }
1047         else
1048         {
1049             wxSscanf(wd.c_str(), wxT("%i"), &wdi);
1050             SetWidthFloat((int)(pixel_scale * (double)wdi), wxHTML_UNITS_PIXELS);
1051         }
1052         m_LastLayout = -1;
1053     }
1054 }
1055
1056
1057
1058 const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) const
1059 {
1060     if (m_Cells)
1061     {
1062         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
1063         {
1064             const wxHtmlCell *r = cell->Find(condition, param);
1065             if (r) return r;
1066         }
1067     }
1068     return NULL;
1069 }
1070
1071
1072 wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y,
1073                                                unsigned flags) const
1074 {
1075     if ( flags & wxHTML_FIND_EXACT )
1076     {
1077         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
1078         {
1079             int cx = cell->GetPosX(),
1080                 cy = cell->GetPosY();
1081
1082             if ( (cx <= x) && (cx + cell->GetWidth() > x) &&
1083                  (cy <= y) && (cy + cell->GetHeight() > y) )
1084             {
1085                 return cell->FindCellByPos(x - cx, y - cy, flags);
1086             }
1087         }
1088     }
1089     else if ( flags & wxHTML_FIND_NEAREST_AFTER )
1090     {
1091         wxHtmlCell *c;
1092         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
1093         {
1094             if ( cell->IsFormattingCell() )
1095                 continue;
1096             int cellY = cell->GetPosY();
1097             if (!( y < cellY || (y < cellY + cell->GetHeight() &&
1098                                  x < cell->GetPosX() + cell->GetWidth()) ))
1099                 continue;
1100
1101             c = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
1102             if (c) return c;
1103         }
1104     }
1105     else if ( flags & wxHTML_FIND_NEAREST_BEFORE )
1106     {
1107         wxHtmlCell *c2, *c = NULL;
1108         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
1109         {
1110             if ( cell->IsFormattingCell() )
1111                 continue;
1112             int cellY = cell->GetPosY();
1113             if (!( cellY + cell->GetHeight() <= y ||
1114                    (y >= cellY && x >= cell->GetPosX()) ))
1115                 break;
1116             c2 = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
1117             if (c2)
1118                 c = c2;
1119         }
1120         if (c) return c;
1121     }
1122
1123     return NULL;
1124 }
1125
1126
1127 void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event)
1128 {
1129     wxHtmlCell *cell = FindCellByPos(x, y);
1130     if ( cell )
1131         cell->OnMouseClick(parent, x, y, event);
1132 }
1133
1134
1135
1136 wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const
1137 {
1138     if ( m_Cells )
1139     {
1140         wxHtmlCell *c2;
1141         for (wxHtmlCell *c = m_Cells; c; c = c->GetNext())
1142         {
1143             c2 = c->GetFirstTerminal();
1144             if ( c2 )
1145                 return c2;
1146         }
1147     }
1148     return NULL;
1149 }
1150
1151 wxHtmlCell *wxHtmlContainerCell::GetLastTerminal() const
1152 {
1153     if ( m_Cells )
1154     {
1155         // most common case first:
1156         wxHtmlCell *c = m_LastCell->GetLastTerminal();
1157         if ( c )
1158             return c;
1159
1160         wxHtmlCell *ctmp;
1161         wxHtmlCell *c2 = NULL;
1162         for (c = m_Cells; c; c = c->GetNext())
1163         {
1164             ctmp = c->GetLastTerminal();
1165             if ( ctmp )
1166                 c2 = ctmp;
1167         }
1168         return c2;
1169     }
1170     else
1171         return NULL;
1172 }
1173
1174
1175 static bool IsEmptyContainer(wxHtmlContainerCell *cell)
1176 {
1177     for ( wxHtmlCell *c = cell->GetFirstChild(); c; c = c->GetNext() )
1178     {
1179         if ( !c->IsTerminalCell() || !c->IsFormattingCell() )
1180             return false;
1181     }
1182     return true;
1183 }
1184
1185 void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom)
1186 {
1187     if ( top )
1188         SetIndent(0, wxHTML_INDENT_TOP);
1189     if ( bottom )
1190         SetIndent(0, wxHTML_INDENT_BOTTOM);
1191
1192     if ( m_Cells )
1193     {
1194         wxHtmlCell *c;
1195         wxHtmlContainerCell *cont;
1196         if ( top )
1197         {
1198             for ( c = m_Cells; c; c = c->GetNext() )
1199             {
1200                 if ( c->IsTerminalCell() )
1201                 {
1202                     if ( !c->IsFormattingCell() )
1203                         break;
1204                 }
1205                 else
1206                 {
1207                     cont = (wxHtmlContainerCell*)c;
1208                     if ( IsEmptyContainer(cont) )
1209                     {
1210                         cont->SetIndent(0, wxHTML_INDENT_VERTICAL);
1211                     }
1212                     else
1213                     {
1214                         cont->RemoveExtraSpacing(true, false);
1215                         break;
1216                     }
1217                 }
1218             }
1219         }
1220
1221         if ( bottom )
1222         {
1223             wxArrayPtrVoid arr;
1224             for ( c = m_Cells; c; c = c->GetNext() )
1225                 arr.Add((void*)c);
1226
1227             for ( int i = arr.GetCount() - 1; i >= 0; i--)
1228             {
1229                 c = (wxHtmlCell*)arr[i];
1230                 if ( c->IsTerminalCell() )
1231                 {
1232                     if ( !c->IsFormattingCell() )
1233                         break;
1234                 }
1235                 else
1236                 {
1237                     cont = (wxHtmlContainerCell*)c;
1238                     if ( IsEmptyContainer(cont) )
1239                     {
1240                         cont->SetIndent(0, wxHTML_INDENT_VERTICAL);                                 }
1241                     else
1242                     {
1243                         cont->RemoveExtraSpacing(false, true);
1244                         break;
1245                     }
1246                 }
1247             }
1248         }
1249     }
1250 }
1251
1252
1253
1254
1255 // --------------------------------------------------------------------------
1256 // wxHtmlColourCell
1257 // --------------------------------------------------------------------------
1258
1259 IMPLEMENT_ABSTRACT_CLASS(wxHtmlColourCell, wxHtmlCell)
1260
1261 void wxHtmlColourCell::Draw(wxDC& dc,
1262                             int x, int y,
1263                             int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1264                             wxHtmlRenderingInfo& info)
1265 {
1266     DrawInvisible(dc, x, y, info);
1267 }
1268
1269 void wxHtmlColourCell::DrawInvisible(wxDC& dc,
1270                                      int WXUNUSED(x), int WXUNUSED(y),
1271                                      wxHtmlRenderingInfo& info)
1272 {
1273     wxHtmlRenderingState& state = info.GetState();
1274     if (m_Flags & wxHTML_CLR_FOREGROUND)
1275     {
1276         state.SetFgColour(m_Colour);
1277         if (state.GetSelectionState() != wxHTML_SEL_IN)
1278             dc.SetTextForeground(m_Colour);
1279         else
1280             dc.SetTextForeground(
1281                     info.GetStyle().GetSelectedTextColour(m_Colour));
1282     }
1283     if (m_Flags & wxHTML_CLR_BACKGROUND)
1284     {
1285         state.SetBgColour(m_Colour);
1286         if (state.GetSelectionState() != wxHTML_SEL_IN)
1287         {
1288             dc.SetTextBackground(m_Colour);
1289             dc.SetBackground(wxBrush(m_Colour, wxSOLID));
1290         }
1291         else
1292         {
1293             wxColour c = info.GetStyle().GetSelectedTextBgColour(m_Colour);
1294             dc.SetTextBackground(c);
1295             dc.SetBackground(wxBrush(c, wxSOLID));
1296         }
1297     }
1298 }
1299
1300
1301
1302
1303 // ---------------------------------------------------------------------------
1304 // wxHtmlFontCell
1305 // ---------------------------------------------------------------------------
1306
1307 IMPLEMENT_ABSTRACT_CLASS(wxHtmlFontCell, wxHtmlCell)
1308
1309 void wxHtmlFontCell::Draw(wxDC& dc,
1310                           int WXUNUSED(x), int WXUNUSED(y),
1311                           int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1312                           wxHtmlRenderingInfo& WXUNUSED(info))
1313 {
1314     dc.SetFont(m_Font);
1315 }
1316
1317 void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y),
1318                                    wxHtmlRenderingInfo& WXUNUSED(info))
1319 {
1320     dc.SetFont(m_Font);
1321 }
1322
1323
1324
1325
1326
1327
1328
1329
1330 // ---------------------------------------------------------------------------
1331 // wxHtmlWidgetCell
1332 // ---------------------------------------------------------------------------
1333
1334 IMPLEMENT_ABSTRACT_CLASS(wxHtmlWidgetCell, wxHtmlCell)
1335
1336 wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
1337 {
1338     int sx, sy;
1339     m_Wnd = wnd;
1340     m_Wnd->GetSize(&sx, &sy);
1341     m_Width = sx, m_Height = sy;
1342     m_WidthFloat = w;
1343 }
1344
1345
1346 void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc),
1347                             int WXUNUSED(x), int WXUNUSED(y),
1348                             int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1349                             wxHtmlRenderingInfo& WXUNUSED(info))
1350 {
1351     int absx = 0, absy = 0, stx, sty;
1352     wxHtmlCell *c = this;
1353
1354     while (c)
1355     {
1356         absx += c->GetPosX();
1357         absy += c->GetPosY();
1358         c = c->GetParent();
1359     }
1360
1361     ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
1362     m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
1363 }
1364
1365
1366
1367 void wxHtmlWidgetCell::DrawInvisible(wxDC& WXUNUSED(dc),
1368                                      int WXUNUSED(x), int WXUNUSED(y),
1369                                      wxHtmlRenderingInfo& WXUNUSED(info))
1370 {
1371     int absx = 0, absy = 0, stx, sty;
1372     wxHtmlCell *c = this;
1373
1374     while (c)
1375     {
1376         absx += c->GetPosX();
1377         absy += c->GetPosY();
1378         c = c->GetParent();
1379     }
1380
1381     ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
1382     m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
1383 }
1384
1385
1386
1387 void wxHtmlWidgetCell::Layout(int w)
1388 {
1389     if (m_WidthFloat != 0)
1390     {
1391         m_Width = (w * m_WidthFloat) / 100;
1392         m_Wnd->SetSize(m_Width, m_Height);
1393     }
1394
1395     wxHtmlCell::Layout(w);
1396 }
1397
1398
1399
1400 // ----------------------------------------------------------------------------
1401 // wxHtmlTerminalCellsInterator
1402 // ----------------------------------------------------------------------------
1403
1404 const wxHtmlCell* wxHtmlTerminalCellsInterator::operator++()
1405 {
1406     if ( !m_pos )
1407         return NULL;
1408
1409     do
1410     {
1411         if ( m_pos == m_to )
1412         {
1413             m_pos = NULL;
1414             return NULL;
1415         }
1416
1417         if ( m_pos->GetNext() )
1418             m_pos = m_pos->GetNext();
1419         else
1420         {
1421             // we must go up the hierarchy until we reach container where this
1422             // is not the last child, and then go down to first terminal cell:
1423             while ( m_pos->GetNext() == NULL )
1424             {
1425                 m_pos = m_pos->GetParent();
1426                 if ( !m_pos )
1427                     return NULL;
1428             }
1429             m_pos = m_pos->GetNext();
1430         }
1431         while ( m_pos->GetFirstChild() != NULL )
1432             m_pos = m_pos->GetFirstChild();
1433     } while ( !m_pos->IsTerminalCell() );
1434
1435     return m_pos;
1436 }
1437
1438
1439
1440
1441
1442
1443
1444 //-----------------------------------------------------------------------------
1445 // Cleanup
1446 //-----------------------------------------------------------------------------
1447
1448 class wxHtmlCellModule: public wxModule
1449 {
1450 DECLARE_DYNAMIC_CLASS(wxHtmlCellModule)
1451 public:
1452     wxHtmlCellModule() : wxModule() {}
1453     bool OnInit() { return true; }
1454     void OnExit()
1455     {
1456         wxDELETE(gs_cursorLink);
1457         wxDELETE(gs_cursorText);
1458     }
1459 };
1460
1461 IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellModule, wxModule)
1462
1463 #endif