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 #include "wx/wxprec.h"
  11
  12 #include "wx/defs.h"
  13
  14 #if wxUSE_HTML && wxUSE_STREAMS
  15
  16 #ifdef __BORLANDC__
  17 #pragma hdrstop
  18 #endif
  19
  20 #ifndef WXPRECOMP
  21     #include "wx/brush.h"
  22     #include "wx/colour.h"
  23     #include "wx/dc.h"
  24 #endif
  25
  26 #include "wx/html/htmlcell.h"
  27 #include "wx/html/htmlwin.h"
  28 #include "wx/settings.h"
  29 #include "wx/module.h"
  30 #include "wx/dynarray.h"
  31
  32 #include <stdlib.h>
  33
  34 //-----------------------------------------------------------------------------
  35 // Global variables
  36 //-----------------------------------------------------------------------------
  37
  38 static wxCursor *gs_cursorLink = NULL;
  39 static wxCursor *gs_cursorText = NULL;
  40
  41
  42 //-----------------------------------------------------------------------------
  43 // Helper classes
  44 //-----------------------------------------------------------------------------
  45
  46 void wxHtmlSelection::Set(const wxPoint& fromPos, const wxHtmlCell *fromCell,
  47                           const wxPoint& toPos, const wxHtmlCell *toCell)
  48 {
  49     m_fromCell = fromCell;
  50     m_toCell = toCell;
  51     m_fromPos = fromPos;
  52     m_toPos = toPos;
  53 }
  54
  55 void wxHtmlSelection::Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell)
  56 {
  57     wxPoint p1 = fromCell ? fromCell->GetAbsPos() : wxDefaultPosition;
  58     wxPoint p2 = toCell ? toCell->GetAbsPos() : wxDefaultPosition;
  59     if ( toCell )
  60     {
  61         p2.x += toCell->GetWidth();
  62         p2.y += toCell->GetHeight();
  63     }
  64     Set(p1, fromCell, p2, toCell);
  65 }
  66
  67 wxColour
  68 wxDefaultHtmlRenderingStyle::
  69 GetSelectedTextColour(const wxColour& WXUNUSED(clr))
  70 {
  71     return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
  72 }
  73
  74 wxColour
  75 wxDefaultHtmlRenderingStyle::
  76 GetSelectedTextBgColour(const wxColour& WXUNUSED(clr))
  77 {
  78     return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
  79 }
  80
  81
  82 //-----------------------------------------------------------------------------
  83 // wxHtmlCell
  84 //-----------------------------------------------------------------------------
  85
  86 IMPLEMENT_ABSTRACT_CLASS(wxHtmlCell, wxObject)
  87
  88 wxHtmlCell::wxHtmlCell() : wxObject()
  89 {
  90     m_Next = NULL;
  91     m_Parent = NULL;
  92     m_Width = m_Height = m_Descent = 0;
  93     m_ScriptMode = wxHTML_SCRIPT_NORMAL;        // <sub> or <sup> mode
  94     m_ScriptBaseline = 0;                       // <sub> or <sup> baseline
  95     m_CanLiveOnPagebreak = true;
  96     m_Link = NULL;
  97 }
  98
  99 wxHtmlCell::~wxHtmlCell()
 100 {
 101     delete m_Link;
 102 }
 103
 104 // Update the descent value when whe are in a <sub> or <sup>.
 105 // prevbase is the parent base
 106 void wxHtmlCell::SetScriptMode(wxHtmlScriptMode mode, long previousBase)
 107 {
 108     m_ScriptMode = mode;
 109
 110     if (mode == wxHTML_SCRIPT_SUP)
 111         m_ScriptBaseline = previousBase - (m_Height + 1) / 2;
 112     else if (mode == wxHTML_SCRIPT_SUB)
 113         m_ScriptBaseline = previousBase + (m_Height + 1) / 6;
 114     else
 115         m_ScriptBaseline = 0;
 116
 117     m_Descent += m_ScriptBaseline;
 118 }
 119
 120 #if WXWIN_COMPATIBILITY_2_6
 121
 122 struct wxHtmlCellOnMouseClickCompatHelper;
 123
 124 static wxHtmlCellOnMouseClickCompatHelper *gs_helperOnMouseClick = NULL;
 125
 126 // helper for routing calls to new ProcessMouseClick() method to deprecated
 127 // OnMouseClick() method
 128 struct wxHtmlCellOnMouseClickCompatHelper
 129 {
 130     wxHtmlCellOnMouseClickCompatHelper(wxHtmlWindowInterface *window_,
 131                                        const wxPoint& pos_,
 132                                        const wxMouseEvent& event_)
 133         : window(window_), pos(pos_), event(event_), retval(false)
 134     {
 135     }
 136
 137     bool CallOnMouseClick(wxHtmlCell *cell)
 138     {
 139         wxHtmlCellOnMouseClickCompatHelper *oldHelper = gs_helperOnMouseClick;
 140         gs_helperOnMouseClick = this;
 141         cell->OnMouseClick
 142               (
 143                 window ? window->GetHTMLWindow() : NULL,
 144                 pos.x, pos.y,
 145                 event
 146               );
 147         gs_helperOnMouseClick = oldHelper;
 148         return retval;
 149     }
 150
 151     wxHtmlWindowInterface *window;
 152     const wxPoint& pos;
 153     const wxMouseEvent& event;
 154     bool retval;
 155 };
 156 #endif // WXWIN_COMPATIBILITY_2_6
 157
 158 bool wxHtmlCell::ProcessMouseClick(wxHtmlWindowInterface *window,
 159                                    const wxPoint& pos,
 160                                    const wxMouseEvent& event)
 161 {
 162     wxCHECK_MSG( window, false, _T("window interface must be provided") );
 163
 164 #if WXWIN_COMPATIBILITY_2_6
 165     // NB: this hack puts the body of ProcessMouseClick() into OnMouseClick()
 166     //     (for which it has to pass the arguments and return value via a
 167     //     helper variable because these two methods have different
 168     //     signatures), so that old code overriding OnMouseClick will continue
 169     //     to work
 170     wxHtmlCellOnMouseClickCompatHelper compat(window, pos, event);
 171     return compat.CallOnMouseClick(this);
 172 }
 173
 174 void wxHtmlCell::OnMouseClick(wxWindow *, int, int, const wxMouseEvent& event)
 175 {
 176     wxCHECK_RET( gs_helperOnMouseClick, _T("unexpected call to OnMouseClick") );
 177     wxHtmlWindowInterface *window = gs_helperOnMouseClick->window;
 178     const wxPoint& pos = gs_helperOnMouseClick->pos;
 179 #endif // WXWIN_COMPATIBILITY_2_6
 180
 181     wxHtmlLinkInfo *lnk = GetLink(pos.x, pos.y);
 182     bool retval = false;
 183
 184     if (lnk)
 185     {
 186         wxHtmlLinkInfo lnk2(*lnk);
 187         lnk2.SetEvent(&event);
 188         lnk2.SetHtmlCell(this);
 189
 190         window->OnHTMLLinkClicked(lnk2);
 191         retval = true;
 192     }
 193
 194 #if WXWIN_COMPATIBILITY_2_6
 195     gs_helperOnMouseClick->retval = retval;
 196 #else
 197     return retval;
 198 #endif // WXWIN_COMPATIBILITY_2_6
 199 }
 200
 201
 202 wxCursor wxHtmlCell::GetCursor() const
 203 {
 204     if ( GetLink() )
 205     {
 206         if ( !gs_cursorLink )
 207             gs_cursorLink = new wxCursor(wxCURSOR_HAND);
 208         return *gs_cursorLink;
 209     }
 210     else
 211         return *wxSTANDARD_CURSOR;
 212 }
 213
 214
 215 bool wxHtmlCell::AdjustPagebreak(int *pagebreak, int* WXUNUSED(known_pagebreaks), int WXUNUSED(number_of_pages)) const
 216 {
 217     if ((!m_CanLiveOnPagebreak) &&
 218                 m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak)
 219     {
 220         *pagebreak = m_PosY;
 221         return true;
 222     }
 223
 224     return false;
 225 }
 226
 227
 228
 229 void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link)
 230 {
 231     if (m_Link) delete m_Link;
 232     m_Link = NULL;
 233     if (link.GetHref() != wxEmptyString)
 234         m_Link = new wxHtmlLinkInfo(link);
 235 }
 236
 237
 238 void wxHtmlCell::Layout(int WXUNUSED(w))
 239 {
 240     SetPos(0, 0);
 241 }
 242
 243
 244
 245 const wxHtmlCell* wxHtmlCell::Find(int WXUNUSED(condition), const void* WXUNUSED(param)) const
 246 {
 247     return NULL;
 248 }
 249
 250
 251 wxHtmlCell *wxHtmlCell::FindCellByPos(wxCoord x, wxCoord y,
 252                                       unsigned flags) const
 253 {
 254     if ( x >= 0 && x < m_Width && y >= 0 && y < m_Height )
 255     {
 256         return wxConstCast(this, wxHtmlCell);
 257     }
 258     else
 259     {
 260         if ((flags & wxHTML_FIND_NEAREST_AFTER) &&
 261                 (y < 0 || (y < 0+m_Height && x < 0+m_Width)))
 262             return wxConstCast(this, wxHtmlCell);
 263         else if ((flags & wxHTML_FIND_NEAREST_BEFORE) &&
 264                 (y >= 0+m_Height || (y >= 0 && x >= 0)))
 265             return wxConstCast(this, wxHtmlCell);
 266         else
 267             return NULL;
 268     }
 269 }
 270
 271
 272 wxPoint wxHtmlCell::GetAbsPos(wxHtmlCell *rootCell) const
 273 {
 274     wxPoint p(m_PosX, m_PosY);
 275     for (wxHtmlCell *parent = m_Parent; parent && parent != rootCell;
 276          parent = parent->m_Parent)
 277     {
 278         p.x += parent->m_PosX;
 279         p.y += parent->m_PosY;
 280     }
 281     return p;
 282 }
 283
 284 wxHtmlCell *wxHtmlCell::GetRootCell() const
 285 {
 286     wxHtmlCell *c = wxConstCast(this, wxHtmlCell);
 287     while ( c->m_Parent )
 288         c = c->m_Parent;
 289     return c;
 290 }
 291
 292 unsigned wxHtmlCell::GetDepth() const
 293 {
 294     unsigned d = 0;
 295     for (wxHtmlCell *p = m_Parent; p; p = p->m_Parent)
 296         d++;
 297     return d;
 298 }
 299
 300 bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const
 301 {
 302     const wxHtmlCell *c1 = this;
 303     const wxHtmlCell *c2 = cell;
 304     unsigned d1 = GetDepth();
 305     unsigned d2 = cell->GetDepth();
 306
 307     if ( d1 > d2 )
 308         for (; d1 != d2; d1-- )
 309             c1 = c1->m_Parent;
 310     else if ( d1 < d2 )
 311         for (; d1 != d2; d2-- )
 312             c2 = c2->m_Parent;
 313
 314     if ( cell == this )
 315         return true;
 316
 317     while ( c1 && c2 )
 318     {
 319         if ( c1->m_Parent == c2->m_Parent )
 320         {
 321             while ( c1 )
 322             {
 323                 if ( c1 == c2 )
 324                     return true;
 325                 c1 = c1->GetNext();
 326             }
 327             return false;
 328         }
 329         else
 330         {
 331             c1 = c1->m_Parent;
 332             c2 = c2->m_Parent;
 333         }
 334     }
 335
 336     wxFAIL_MSG(_T("Cells are in different trees"));
 337     return false;
 338 }
 339
 340
 341 //-----------------------------------------------------------------------------
 342 // wxHtmlWordCell
 343 //-----------------------------------------------------------------------------
 344
 345 IMPLEMENT_ABSTRACT_CLASS(wxHtmlWordCell, wxHtmlCell)
 346
 347 wxHtmlWordCell::wxHtmlWordCell(const wxString& word, const wxDC& dc) : wxHtmlCell()
 348 {
 349     m_Word = word;
 350     dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent);
 351     SetCanLiveOnPagebreak(false);
 352     m_allowLinebreak = true;
 353 }
 354
 355 void wxHtmlWordCell::SetPreviousWord(wxHtmlWordCell *cell)
 356 {
 357     if ( cell && m_Parent == cell->m_Parent &&
 358          !wxIsspace(cell->m_Word.Last()) && !wxIsspace(m_Word[0u]) )
 359     {
 360         m_allowLinebreak = false;
 361     }
 362 }
 363
 364 // Splits m_Word into up to three parts according to selection, returns
 365 // substring before, in and after selection and the points (in relative coords)
 366 // where s2 and s3 start:
 367 void wxHtmlWordCell::Split(const wxDC& dc,
 368                            const wxPoint& selFrom, const wxPoint& selTo,
 369                            unsigned& pos1, unsigned& pos2) const
 370 {
 371     wxPoint pt1 = (selFrom == wxDefaultPosition) ?
 372                    wxDefaultPosition : selFrom - GetAbsPos();
 373     wxPoint pt2 = (selTo == wxDefaultPosition) ?
 374                    wxPoint(m_Width, wxDefaultCoord) : selTo - GetAbsPos();
 375
 376     unsigned len = m_Word.length();
 377     unsigned i = 0;
 378     pos1 = 0;
 379
 380     // adjust for cases when the start/end position is completely
 381     // outside the cell:
 382     if ( pt1.y < 0 )
 383         pt1.x = 0;
 384     if ( pt2.y >= m_Height )
 385         pt2.x = m_Width;
 386
 387     // before selection:
 388 #ifdef __WXMAC__
 389     // implementation using PartialExtents to support fractional widths
 390     wxArrayInt widths ;
 391     dc.GetPartialTextExtents(m_Word,widths) ;
 392     while( i < len && pt1.x >= widths[i] )
 393         i++ ;
 394 #else // __WXMAC__
 395     wxCoord charW, charH;
 396     while ( pt1.x > 0 && i < len )
 397     {
 398         dc.GetTextExtent(m_Word[i], &charW, &charH);
 399         pt1.x -= charW;
 400         if ( pt1.x >= 0 )
 401         {
 402             pos1 += charW;
 403             i++;
 404         }
 405     }
 406 #endif // __WXMAC__/!__WXMAC__
 407
 408     // in selection:
 409     unsigned j = i;
 410 #ifdef __WXMAC__
 411     while( j < len && pt2.x >= widths[j] )
 412         j++ ;
 413 #else // __WXMAC__
 414     pos2 = pos1;
 415     pt2.x -= pos2;
 416     while ( pt2.x > 0 && j < len )
 417     {
 418         dc.GetTextExtent(m_Word[j], &charW, &charH);
 419         pt2.x -= charW;
 420         if ( pt2.x >= 0 )
 421         {
 422             pos2 += charW;
 423             j++;
 424         }
 425     }
 426 #endif // __WXMAC__/!__WXMAC__
 427
 428     pos1 = i;
 429     pos2 = j;
 430 }
 431
 432 void wxHtmlWordCell::SetSelectionPrivPos(const wxDC& dc, wxHtmlSelection *s) const
 433 {
 434     unsigned p1, p2;
 435
 436     Split(dc,
 437           this == s->GetFromCell() ? s->GetFromPos() : wxDefaultPosition,
 438           this == s->GetToCell() ? s->GetToPos() : wxDefaultPosition,
 439           p1, p2);
 440
 441     wxPoint p(0, m_Word.length());
 442
 443     if ( this == s->GetFromCell() )
 444         p.x = p1; // selection starts here
 445     if ( this == s->GetToCell() )
 446         p.y = p2; // selection ends here
 447
 448     if ( this == s->GetFromCell() )
 449         s->SetFromPrivPos(p);
 450     if ( this == s->GetToCell() )
 451         s->SetToPrivPos(p);
 452 }
 453
 454
 455 static void SwitchSelState(wxDC& dc, wxHtmlRenderingInfo& info,
 456                            bool toSelection)
 457 {
 458     wxColour fg = info.GetState().GetFgColour();
 459     wxColour bg = info.GetState().GetBgColour();
 460
 461     if ( toSelection )
 462     {
 463         dc.SetBackgroundMode(wxSOLID);
 464         dc.SetTextForeground(info.GetStyle().GetSelectedTextColour(fg));
 465         dc.SetTextBackground(info.GetStyle().GetSelectedTextBgColour(bg));
 466         dc.SetBackground(wxBrush(info.GetStyle().GetSelectedTextBgColour(bg),
 467                                  wxSOLID));
 468     }
 469     else
 470     {
 471         dc.SetBackgroundMode(wxTRANSPARENT);
 472         dc.SetTextForeground(fg);
 473         dc.SetTextBackground(bg);
 474         dc.SetBackground(wxBrush(bg, wxSOLID));
 475     }
 476 }
 477
 478
 479 void wxHtmlWordCell::Draw(wxDC& dc, int x, int y,
 480                           int WXUNUSED(view_y1), int WXUNUSED(view_y2),
 481                           wxHtmlRenderingInfo& info)
 482 {
 483 #if 0 // useful for debugging
 484     dc.SetPen(*wxBLACK_PEN);
 485     dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width /* VZ: +1? */ ,m_Height);
 486 #endif
 487
 488     bool drawSelectionAfterCell = false;
 489
 490     if ( info.GetState().GetSelectionState() == wxHTML_SEL_CHANGING )
 491     {
 492         // Selection changing, we must draw the word piecewise:
 493         wxHtmlSelection *s = info.GetSelection();
 494         wxString txt;
 495         int w, h;
 496         int ofs = 0;
 497
 498         wxPoint priv = (this == s->GetFromCell()) ?
 499                            s->GetFromPrivPos() : s->GetToPrivPos();
 500
 501         // NB: this is quite a hack: in order to compute selection boundaries
 502         //     (in word's characters) we must know current font, which is only
 503         //     possible inside rendering code. Therefore we update the
 504         //     information here and store it in wxHtmlSelection so that
 505         //     ConvertToText can use it later:
 506         if ( priv == wxDefaultPosition )
 507         {
 508             SetSelectionPrivPos(dc, s);
 509             priv = (this == s->GetFromCell()) ?
 510                     s->GetFromPrivPos() : s->GetToPrivPos();
 511         }
 512
 513         int part1 = priv.x;
 514         int part2 = priv.y;
 515
 516         if ( part1 > 0 )
 517         {
 518             txt = m_Word.Mid(0, part1);
 519             dc.DrawText(txt, x + m_PosX, y + m_PosY);
 520             dc.GetTextExtent(txt, &w, &h);
 521             ofs += w;
 522         }
 523
 524         SwitchSelState(dc, info, true);
 525
 526         txt = m_Word.Mid(part1, part2-part1);
 527         dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY);
 528
 529         if ( (size_t)part2 < m_Word.length() )
 530         {
 531             dc.GetTextExtent(txt, &w, &h);
 532             ofs += w;
 533             SwitchSelState(dc, info, false);
 534             txt = m_Word.Mid(part2);
 535             dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY);
 536         }
 537         else
 538             drawSelectionAfterCell = true;
 539     }
 540     else
 541     {
 542         wxHtmlSelectionState selstate = info.GetState().GetSelectionState();
 543         // Not changing selection state, draw the word in single mode:
 544         if ( selstate != wxHTML_SEL_OUT &&
 545              dc.GetBackgroundMode() != wxSOLID )
 546         {
 547             SwitchSelState(dc, info, true);
 548         }
 549         else if ( selstate == wxHTML_SEL_OUT &&
 550                   dc.GetBackgroundMode() == wxSOLID )
 551         {
 552             SwitchSelState(dc, info, false);
 553         }
 554         dc.DrawText(m_Word, x + m_PosX, y + m_PosY);
 555         drawSelectionAfterCell = (selstate != wxHTML_SEL_OUT);
 556     }
 557
 558     // NB: If the text is justified then there is usually some free space
 559     //     between adjacent cells and drawing the selection only onto cells
 560     //     would result in ugly unselected spaces. The code below detects
 561     //     this special case and renders the selection *outside* the sell,
 562     //     too.
 563     if ( m_Parent->GetAlignHor() == wxHTML_ALIGN_JUSTIFY &&
 564          drawSelectionAfterCell )
 565     {
 566         wxHtmlCell *nextCell = m_Next;
 567         while ( nextCell && nextCell->IsFormattingCell() )
 568             nextCell = nextCell->GetNext();
 569         if ( nextCell )
 570         {
 571             int nextX = nextCell->GetPosX();
 572             if ( m_PosX + m_Width < nextX )
 573             {
 574                 dc.SetBrush(dc.GetBackground());
 575                 dc.SetPen(*wxTRANSPARENT_PEN);
 576                 dc.DrawRectangle(x + m_PosX + m_Width, y + m_PosY,
 577                                  nextX - m_PosX - m_Width, m_Height);
 578             }
 579         }
 580     }
 581 }
 582
 583
 584 wxString wxHtmlWordCell::ConvertToText(wxHtmlSelection *s) const
 585 {
 586     if ( s && (this == s->GetFromCell() || this == s->GetToCell()) )
 587     {
 588         wxPoint priv = this == s->GetFromCell() ? s->GetFromPrivPos()
 589                                                 : s->GetToPrivPos();
 590
 591         // VZ: we may be called before we had a chance to re-render ourselves
 592         //     and in this case GetFrom/ToPrivPos() is not set yet -- assume
 593         //     that this only happens in case of a double/triple click (which
 594         //     seems to be the case now) and so it makes sense to select the
 595         //     entire contents of the cell in this case
 596         //
 597         // TODO: but this really needs to be fixed in some better way later...
 598         if ( priv != wxDefaultPosition )
 599         {
 600             int part1 = priv.x;
 601             int part2 = priv.y;
 602             return m_Word.Mid(part1, part2-part1);
 603         }
 604         //else: return the whole word below
 605     }
 606
 607     return m_Word;
 608 }
 609
 610 wxCursor wxHtmlWordCell::GetCursor() const
 611 {
 612     if ( !GetLink() )
 613     {
 614         if ( !gs_cursorText )
 615             gs_cursorText = new wxCursor(wxCURSOR_IBEAM);
 616         return *gs_cursorText;
 617     }
 618     else
 619         return wxHtmlCell::GetCursor();
 620 }
 621
 622
 623 //-----------------------------------------------------------------------------
 624 // wxHtmlContainerCell
 625 //-----------------------------------------------------------------------------
 626
 627 IMPLEMENT_ABSTRACT_CLASS(wxHtmlContainerCell, wxHtmlCell)
 628
 629 wxHtmlContainerCell::wxHtmlContainerCell(wxHtmlContainerCell *parent) : wxHtmlCell()
 630 {
 631     m_Cells = m_LastCell = NULL;
 632     m_Parent = parent;
 633     m_MaxTotalWidth = 0;
 634     if (m_Parent) m_Parent->InsertCell(this);
 635     m_AlignHor = wxHTML_ALIGN_LEFT;
 636     m_AlignVer = wxHTML_ALIGN_BOTTOM;
 637     m_IndentLeft = m_IndentRight = m_IndentTop = m_IndentBottom = 0;
 638     m_WidthFloat = 100; m_WidthFloatUnits = wxHTML_UNITS_PERCENT;
 639     m_UseBkColour = false;
 640     m_UseBorder = false;
 641     m_MinHeight = 0;
 642     m_MinHeightAlign = wxHTML_ALIGN_TOP;
 643     m_LastLayout = -1;
 644 }
 645
 646 wxHtmlContainerCell::~wxHtmlContainerCell()
 647 {
 648     wxHtmlCell *cell = m_Cells;
 649     while ( cell )
 650     {
 651         wxHtmlCell *cellNext = cell->GetNext();
 652         delete cell;
 653         cell = cellNext;
 654     }
 655 }
 656
 657
 658
 659 void wxHtmlContainerCell::SetIndent(int i, int what, int units)
 660 {
 661     int val = (units == wxHTML_UNITS_PIXELS) ? i : -i;
 662     if (what & wxHTML_INDENT_LEFT) m_IndentLeft = val;
 663     if (what & wxHTML_INDENT_RIGHT) m_IndentRight = val;
 664     if (what & wxHTML_INDENT_TOP) m_IndentTop = val;
 665     if (what & wxHTML_INDENT_BOTTOM) m_IndentBottom = val;
 666     m_LastLayout = -1;
 667 }
 668
 669
 670
 671 int wxHtmlContainerCell::GetIndent(int ind) const
 672 {
 673     if (ind & wxHTML_INDENT_LEFT) return m_IndentLeft;
 674     else if (ind & wxHTML_INDENT_RIGHT) return m_IndentRight;
 675     else if (ind & wxHTML_INDENT_TOP) return m_IndentTop;
 676     else if (ind & wxHTML_INDENT_BOTTOM) return m_IndentBottom;
 677     else return -1; /* BUG! Should not be called... */
 678 }
 679
 680
 681
 682
 683 int wxHtmlContainerCell::GetIndentUnits(int ind) const
 684 {
 685     bool p = false;
 686     if (ind & wxHTML_INDENT_LEFT) p = m_IndentLeft < 0;
 687     else if (ind & wxHTML_INDENT_RIGHT) p = m_IndentRight < 0;
 688     else if (ind & wxHTML_INDENT_TOP) p = m_IndentTop < 0;
 689     else if (ind & wxHTML_INDENT_BOTTOM) p = m_IndentBottom < 0;
 690     if (p) return wxHTML_UNITS_PERCENT;
 691     else return wxHTML_UNITS_PIXELS;
 692 }
 693
 694
 695
 696 bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak, int* known_pagebreaks, int number_of_pages) const
 697 {
 698     if (!m_CanLiveOnPagebreak)
 699         return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks, number_of_pages);
 700
 701     else
 702     {
 703         wxHtmlCell *c = GetFirstChild();
 704         bool rt = false;
 705         int pbrk = *pagebreak - m_PosY;
 706
 707         while (c)
 708         {
 709             if (c->AdjustPagebreak(&pbrk, known_pagebreaks, number_of_pages))
 710                 rt = true;
 711             c = c->GetNext();
 712         }
 713         if (rt)
 714             *pagebreak = pbrk + m_PosY;
 715         return rt;
 716     }
 717 }
 718
 719
 720
 721 void wxHtmlContainerCell::Layout(int w)
 722 {
 723     wxHtmlCell::Layout(w);
 724
 725     if (m_LastLayout == w) return;
 726
 727     // VS: Any attempt to layout with negative or zero width leads to hell,
 728     // but we can't ignore such attempts completely, since it sometimes
 729     // happen (e.g. when trying how small a table can be). The best thing we
 730     // can do is to set the width of child cells to zero
 731     if (w < 1)
 732     {
 733        m_Width = 0;
 734        for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 735             cell->Layout(0);
 736             // this does two things: it recursively calls this code on all
 737             // child contrainers and resets children's position to (0,0)
 738        return;
 739     }
 740
 741     wxHtmlCell *nextCell;
 742     long xpos = 0, ypos = m_IndentTop;
 743     int xdelta = 0, ybasicpos = 0, ydiff;
 744     int s_width, nextWordWidth, s_indent;
 745     int ysizeup = 0, ysizedown = 0;
 746     int MaxLineWidth = 0;
 747     int curLineWidth = 0;
 748     m_MaxTotalWidth = 0;
 749
 750
 751     /*
 752
 753     WIDTH ADJUSTING :
 754
 755     */
 756
 757     if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
 758     {
 759         if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
 760         else m_Width = m_WidthFloat * w / 100;
 761     }
 762     else
 763     {
 764         if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
 765         else m_Width = m_WidthFloat;
 766     }
 767
 768     if (m_Cells)
 769     {
 770         int l = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
 771         int r = (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight;
 772         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
 773             cell->Layout(m_Width - (l + r));
 774     }
 775
 776     /*
 777
 778     LAYOUTING :
 779
 780     */
 781
 782     // adjust indentation:
 783     s_indent = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft;
 784     s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 785
 786     // my own layouting:
 787     wxHtmlCell *cell = m_Cells,
 788                *line = m_Cells;
 789     while (cell != NULL)
 790     {
 791         switch (m_AlignVer)
 792         {
 793             case wxHTML_ALIGN_TOP :      ybasicpos = 0; break;
 794             case wxHTML_ALIGN_BOTTOM :   ybasicpos = - cell->GetHeight(); break;
 795             case wxHTML_ALIGN_CENTER :   ybasicpos = - cell->GetHeight() / 2; break;
 796         }
 797         ydiff = cell->GetHeight() + ybasicpos;
 798
 799         if (cell->GetDescent() + ydiff > ysizedown) ysizedown = cell->GetDescent() + ydiff;
 800         if (ybasicpos + cell->GetDescent() < -ysizeup) ysizeup = - (ybasicpos + cell->GetDescent());
 801
 802         // layout nonbreakable run of cells:
 803         cell->SetPos(xpos, ybasicpos + cell->GetDescent());
 804         xpos += cell->GetWidth();
 805         if (!cell->IsTerminalCell())
 806         {
 807             // Container cell indicates new line
 808             if (curLineWidth > m_MaxTotalWidth)
 809                 m_MaxTotalWidth = curLineWidth;
 810
 811             if (wxMax(cell->GetWidth(), cell->GetMaxTotalWidth()) > m_MaxTotalWidth)
 812                 m_MaxTotalWidth = cell->GetMaxTotalWidth();
 813             curLineWidth = 0;
 814         }
 815         else
 816             // Normal cell, add maximum cell width to line width
 817             curLineWidth += cell->GetMaxTotalWidth();
 818
 819         cell = cell->GetNext();
 820
 821         // compute length of the next word that would be added:
 822         nextWordWidth = 0;
 823         if (cell)
 824         {
 825             nextCell = cell;
 826             do
 827             {
 828                 nextWordWidth += nextCell->GetWidth();
 829                 nextCell = nextCell->GetNext();
 830             } while (nextCell && !nextCell->IsLinebreakAllowed());
 831         }
 832
 833         // force new line if occurred:
 834         if ((cell == NULL) ||
 835             (xpos + nextWordWidth > s_width && cell->IsLinebreakAllowed()))
 836         {
 837             if (xpos > MaxLineWidth) MaxLineWidth = xpos;
 838             if (ysizeup < 0) ysizeup = 0;
 839             if (ysizedown < 0) ysizedown = 0;
 840             switch (m_AlignHor) {
 841                 case wxHTML_ALIGN_LEFT :
 842                 case wxHTML_ALIGN_JUSTIFY :
 843                          xdelta = 0;
 844                          break;
 845                 case wxHTML_ALIGN_RIGHT :
 846                          xdelta = 0 + (s_width - xpos);
 847                          break;
 848                 case wxHTML_ALIGN_CENTER :
 849                          xdelta = 0 + (s_width - xpos) / 2;
 850                          break;
 851             }
 852             if (xdelta < 0) xdelta = 0;
 853             xdelta += s_indent;
 854
 855             ypos += ysizeup;
 856
 857             if (m_AlignHor != wxHTML_ALIGN_JUSTIFY || cell == NULL)
 858             {
 859                 while (line != cell)
 860                 {
 861                     line->SetPos(line->GetPosX() + xdelta,
 862                                    ypos + line->GetPosY());
 863                     line = line->GetNext();
 864                 }
 865             }
 866             else // align == justify
 867             {
 868                 // we have to distribute the extra horz space between the cells
 869                 // on this line
 870
 871                 // an added complication is that some cells have fixed size and
 872                 // shouldn't get any increment (it so happens that these cells
 873                 // also don't allow line break on them which provides with an
 874                 // easy way to test for this) -- and neither should the cells
 875                 // adjacent to them as this could result in a visible space
 876                 // between two cells separated by, e.g. font change, cell which
 877                 // is wrong
 878
 879                 int step = s_width - xpos;
 880                 if ( step > 0 )
 881                 {
 882                     // first count the cells which will get extra space
 883                     int total = 0;
 884
 885                     const wxHtmlCell *c;
 886                     if ( line != cell )
 887                     {
 888                         for ( c = line->GetNext(); c != cell; c = c->GetNext() )
 889                         {
 890                             if ( c->IsLinebreakAllowed() )
 891                             {
 892                                 total++;
 893                             }
 894                         }
 895                     }
 896
 897                     // and now extra space to those cells which merit it
 898                     if ( total )
 899                     {
 900                         // first cell on line is not moved:
 901                         line->SetPos(line->GetPosX() + s_indent,
 902                                      line->GetPosY() + ypos);
 903
 904                         line = line->GetNext();
 905                         for ( int n = 0; line != cell; line = line->GetNext() )
 906                         {
 907                             if ( line->IsLinebreakAllowed() )
 908                             {
 909                                 // offset the next cell relative to this one
 910                                 // thus increasing our size
 911                                 n++;
 912                             }
 913
 914                             line->SetPos(line->GetPosX() + s_indent +
 915                                            ((n * step) / total),
 916                                            line->GetPosY() + ypos);
 917                         }
 918                     }
 919                     else
 920                     {
 921                         // this will cause the code to enter "else branch" below:
 922                         step = 0;
 923                     }
 924                 }
 925                 // else branch:
 926                 if ( step <= 0 ) // no extra space to distribute
 927                 {
 928                     // just set the indent properly
 929                     while (line != cell)
 930                     {
 931                         line->SetPos(line->GetPosX() + s_indent,
 932                                      line->GetPosY() + ypos);
 933                         line = line->GetNext();
 934                     }
 935                 }
 936             }
 937
 938             ypos += ysizedown;
 939             xpos = 0;
 940             ysizeup = ysizedown = 0;
 941             line = cell;
 942         }
 943     }
 944
 945     // setup height & width, depending on container layout:
 946     m_Height = ypos + (ysizedown + ysizeup) + m_IndentBottom;
 947
 948     if (m_Height < m_MinHeight)
 949     {
 950         if (m_MinHeightAlign != wxHTML_ALIGN_TOP)
 951         {
 952             int diff = m_MinHeight - m_Height;
 953             if (m_MinHeightAlign == wxHTML_ALIGN_CENTER) diff /= 2;
 954             cell = m_Cells;
 955             while (cell)
 956             {
 957                 cell->SetPos(cell->GetPosX(), cell->GetPosY() + diff);
 958                 cell = cell->GetNext();
 959             }
 960         }
 961         m_Height = m_MinHeight;
 962     }
 963
 964     if (curLineWidth > m_MaxTotalWidth)
 965         m_MaxTotalWidth = curLineWidth;
 966
 967     m_MaxTotalWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 968     MaxLineWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight);
 969     if (m_Width < MaxLineWidth) m_Width = MaxLineWidth;
 970
 971     m_LastLayout = w;
 972 }
 973
 974 void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingInfo& info,
 975                                                   wxHtmlCell *cell) const
 976 {
 977     wxHtmlSelection *s = info.GetSelection();
 978     if (!s) return;
 979     if (s->GetFromCell() == cell || s->GetToCell() == cell)
 980     {
 981         info.GetState().SetSelectionState(wxHTML_SEL_CHANGING);
 982     }
 983 }
 984
 985 void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingInfo& info,
 986                                                    wxHtmlCell *cell) const
 987 {
 988     wxHtmlSelection *s = info.GetSelection();
 989     if (!s) return;
 990     if (s->GetToCell() == cell)
 991         info.GetState().SetSelectionState(wxHTML_SEL_OUT);
 992     else if (s->GetFromCell() == cell)
 993         info.GetState().SetSelectionState(wxHTML_SEL_IN);
 994 }
 995
 996 #define mMin(a, b) (((a) < (b)) ? (a) : (b))
 997 #define mMax(a, b) (((a) < (b)) ? (b) : (a))
 998
 999 void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
1000                                wxHtmlRenderingInfo& info)
1001 {
1002 #if 0 // useful for debugging
1003     dc.SetPen(*wxRED_PEN);
1004     dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height);
1005 #endif
1006
1007     int xlocal = x + m_PosX;
1008     int ylocal = y + m_PosY;
1009
1010     if (m_UseBkColour)
1011     {
1012         wxBrush myb = wxBrush(m_BkColour, wxSOLID);
1013
1014         int real_y1 = mMax(ylocal, view_y1);
1015         int real_y2 = mMin(ylocal + m_Height - 1, view_y2);
1016
1017         dc.SetBrush(myb);
1018         dc.SetPen(*wxTRANSPARENT_PEN);
1019         dc.DrawRectangle(xlocal, real_y1, m_Width, real_y2 - real_y1 + 1);
1020     }
1021
1022     if (m_UseBorder)
1023     {
1024         wxPen mypen1(m_BorderColour1, 1, wxSOLID);
1025         wxPen mypen2(m_BorderColour2, 1, wxSOLID);
1026
1027         dc.SetPen(mypen1);
1028         dc.DrawLine(xlocal, ylocal, xlocal, ylocal + m_Height - 1);
1029         dc.DrawLine(xlocal, ylocal, xlocal + m_Width, ylocal);
1030         dc.SetPen(mypen2);
1031         dc.DrawLine(xlocal + m_Width - 1, ylocal, xlocal +  m_Width - 1, ylocal + m_Height - 1);
1032         dc.DrawLine(xlocal, ylocal + m_Height - 1, xlocal + m_Width, ylocal + m_Height - 1);
1033     }
1034
1035     if (m_Cells)
1036     {
1037         // draw container's contents:
1038         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
1039         {
1040
1041             // optimize drawing: don't render off-screen content:
1042             if ((ylocal + cell->GetPosY() <= view_y2) &&
1043                 (ylocal + cell->GetPosY() + cell->GetHeight() > view_y1))
1044             {
1045                 // the cell is visible, draw it:
1046                 UpdateRenderingStatePre(info, cell);
1047                 cell->Draw(dc,
1048                            xlocal, ylocal, view_y1, view_y2,
1049                            info);
1050                 UpdateRenderingStatePost(info, cell);
1051             }
1052             else
1053             {
1054                 // the cell is off-screen, proceed with font+color+etc.
1055                 // changes only:
1056                 cell->DrawInvisible(dc, xlocal, ylocal, info);
1057             }
1058         }
1059     }
1060 }
1061
1062
1063
1064 void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y,
1065                                         wxHtmlRenderingInfo& info)
1066 {
1067     if (m_Cells)
1068     {
1069         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
1070         {
1071             UpdateRenderingStatePre(info, cell);
1072             cell->DrawInvisible(dc, x + m_PosX, y + m_PosY, info);
1073             UpdateRenderingStatePost(info, cell);
1074         }
1075     }
1076 }
1077
1078
1079 wxColour wxHtmlContainerCell::GetBackgroundColour()
1080 {
1081     if (m_UseBkColour)
1082         return m_BkColour;
1083     else
1084         return wxNullColour;
1085 }
1086
1087
1088
1089 wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const
1090 {
1091     wxHtmlCell *cell = FindCellByPos(x, y);
1092
1093     // VZ: I don't know if we should pass absolute or relative coords to
1094     //     wxHtmlCell::GetLink()? As the base class version just ignores them
1095     //     anyhow, it hardly matters right now but should still be clarified
1096     return cell ? cell->GetLink(x, y) : NULL;
1097 }
1098
1099
1100
1101 void wxHtmlContainerCell::InsertCell(wxHtmlCell *f)
1102 {
1103     if (!m_Cells) m_Cells = m_LastCell = f;
1104     else
1105     {
1106         m_LastCell->SetNext(f);
1107         m_LastCell = f;
1108         if (m_LastCell) while (m_LastCell->GetNext()) m_LastCell = m_LastCell->GetNext();
1109     }
1110     f->SetParent(this);
1111     m_LastLayout = -1;
1112 }
1113
1114
1115
1116 void wxHtmlContainerCell::SetAlign(const wxHtmlTag& tag)
1117 {
1118     if (tag.HasParam(wxT("ALIGN")))
1119     {
1120         wxString alg = tag.GetParam(wxT("ALIGN"));
1121         alg.MakeUpper();
1122         if (alg == wxT("CENTER"))
1123             SetAlignHor(wxHTML_ALIGN_CENTER);
1124         else if (alg == wxT("LEFT"))
1125             SetAlignHor(wxHTML_ALIGN_LEFT);
1126         else if (alg == wxT("JUSTIFY"))
1127             SetAlignHor(wxHTML_ALIGN_JUSTIFY);
1128         else if (alg == wxT("RIGHT"))
1129             SetAlignHor(wxHTML_ALIGN_RIGHT);
1130         m_LastLayout = -1;
1131     }
1132 }
1133
1134
1135
1136 void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale)
1137 {
1138     if (tag.HasParam(wxT("WIDTH")))
1139     {
1140         int wdi;
1141         wxString wd = tag.GetParam(wxT("WIDTH"));
1142
1143         if (wd[wd.Length()-1] == wxT('%'))
1144         {
1145             wxSscanf(wd.c_str(), wxT("%i%%"), &wdi);
1146             SetWidthFloat(wdi, wxHTML_UNITS_PERCENT);
1147         }
1148         else
1149         {
1150             wxSscanf(wd.c_str(), wxT("%i"), &wdi);
1151             SetWidthFloat((int)(pixel_scale * (double)wdi), wxHTML_UNITS_PIXELS);
1152         }
1153         m_LastLayout = -1;
1154     }
1155 }
1156
1157
1158
1159 const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) const
1160 {
1161     if (m_Cells)
1162     {
1163         for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext())
1164         {
1165             const wxHtmlCell *r = cell->Find(condition, param);
1166             if (r) return r;
1167         }
1168     }
1169     return NULL;
1170 }
1171
1172
1173 wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y,
1174                                                unsigned flags) const
1175 {
1176     if ( flags & wxHTML_FIND_EXACT )
1177     {
1178         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
1179         {
1180             int cx = cell->GetPosX(),
1181                 cy = cell->GetPosY();
1182
1183             if ( (cx <= x) && (cx + cell->GetWidth() > x) &&
1184                  (cy <= y) && (cy + cell->GetHeight() > y) )
1185             {
1186                 return cell->FindCellByPos(x - cx, y - cy, flags);
1187             }
1188         }
1189     }
1190     else if ( flags & wxHTML_FIND_NEAREST_AFTER )
1191     {
1192         wxHtmlCell *c;
1193         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
1194         {
1195             if ( cell->IsFormattingCell() )
1196                 continue;
1197             int cellY = cell->GetPosY();
1198             if (!( y < cellY || (y < cellY + cell->GetHeight() &&
1199                                  x < cell->GetPosX() + cell->GetWidth()) ))
1200                 continue;
1201
1202             c = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
1203             if (c) return c;
1204         }
1205     }
1206     else if ( flags & wxHTML_FIND_NEAREST_BEFORE )
1207     {
1208         wxHtmlCell *c2, *c = NULL;
1209         for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() )
1210         {
1211             if ( cell->IsFormattingCell() )
1212                 continue;
1213             int cellY = cell->GetPosY();
1214             if (!( cellY + cell->GetHeight() <= y ||
1215                    (y >= cellY && x >= cell->GetPosX()) ))
1216                 break;
1217             c2 = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags);
1218             if (c2)
1219                 c = c2;
1220         }
1221         if (c) return c;
1222     }
1223
1224     return NULL;
1225 }
1226
1227
1228 bool wxHtmlContainerCell::ProcessMouseClick(wxHtmlWindowInterface *window,
1229                                             const wxPoint& pos,
1230                                             const wxMouseEvent& event)
1231 {
1232 #if WXWIN_COMPATIBILITY_2_6
1233     wxHtmlCellOnMouseClickCompatHelper compat(window, pos, event);
1234     return compat.CallOnMouseClick(this);
1235 }
1236
1237 void wxHtmlContainerCell::OnMouseClick(wxWindow*,
1238                                        int, int, const wxMouseEvent& event)
1239 {
1240     wxCHECK_RET( gs_helperOnMouseClick, _T("unexpected call to OnMouseClick") );
1241     wxHtmlWindowInterface *window = gs_helperOnMouseClick->window;
1242     const wxPoint& pos = gs_helperOnMouseClick->pos;
1243 #endif // WXWIN_COMPATIBILITY_2_6
1244
1245     bool retval = false;
1246     wxHtmlCell *cell = FindCellByPos(pos.x, pos.y);
1247     if ( cell )
1248         retval = cell->ProcessMouseClick(window, pos, event);
1249
1250 #if WXWIN_COMPATIBILITY_2_6
1251     gs_helperOnMouseClick->retval = retval;
1252 #else
1253     return retval;
1254 #endif // WXWIN_COMPATIBILITY_2_6
1255 }
1256
1257
1258 wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const
1259 {
1260     if ( m_Cells )
1261     {
1262         wxHtmlCell *c2;
1263         for (wxHtmlCell *c = m_Cells; c; c = c->GetNext())
1264         {
1265             c2 = c->GetFirstTerminal();
1266             if ( c2 )
1267                 return c2;
1268         }
1269     }
1270     return NULL;
1271 }
1272
1273 wxHtmlCell *wxHtmlContainerCell::GetLastTerminal() const
1274 {
1275     if ( m_Cells )
1276     {
1277         // most common case first:
1278         wxHtmlCell *c = m_LastCell->GetLastTerminal();
1279         if ( c )
1280             return c;
1281
1282         wxHtmlCell *ctmp;
1283         wxHtmlCell *c2 = NULL;
1284         for (c = m_Cells; c; c = c->GetNext())
1285         {
1286             ctmp = c->GetLastTerminal();
1287             if ( ctmp )
1288                 c2 = ctmp;
1289         }
1290         return c2;
1291     }
1292     else
1293         return NULL;
1294 }
1295
1296
1297 static bool IsEmptyContainer(wxHtmlContainerCell *cell)
1298 {
1299     for ( wxHtmlCell *c = cell->GetFirstChild(); c; c = c->GetNext() )
1300     {
1301         if ( !c->IsTerminalCell() || !c->IsFormattingCell() )
1302             return false;
1303     }
1304     return true;
1305 }
1306
1307 void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom)
1308 {
1309     if ( top )
1310         SetIndent(0, wxHTML_INDENT_TOP);
1311     if ( bottom )
1312         SetIndent(0, wxHTML_INDENT_BOTTOM);
1313
1314     if ( m_Cells )
1315     {
1316         wxHtmlCell *c;
1317         wxHtmlContainerCell *cont;
1318         if ( top )
1319         {
1320             for ( c = m_Cells; c; c = c->GetNext() )
1321             {
1322                 if ( c->IsTerminalCell() )
1323                 {
1324                     if ( !c->IsFormattingCell() )
1325                         break;
1326                 }
1327                 else
1328                 {
1329                     cont = (wxHtmlContainerCell*)c;
1330                     if ( IsEmptyContainer(cont) )
1331                     {
1332                         cont->SetIndent(0, wxHTML_INDENT_VERTICAL);
1333                     }
1334                     else
1335                     {
1336                         cont->RemoveExtraSpacing(true, false);
1337                         break;
1338                     }
1339                 }
1340             }
1341         }
1342
1343         if ( bottom )
1344         {
1345             wxArrayPtrVoid arr;
1346             for ( c = m_Cells; c; c = c->GetNext() )
1347                 arr.Add((void*)c);
1348
1349             for ( int i = arr.GetCount() - 1; i >= 0; i--)
1350             {
1351                 c = (wxHtmlCell*)arr[i];
1352                 if ( c->IsTerminalCell() )
1353                 {
1354                     if ( !c->IsFormattingCell() )
1355                         break;
1356                 }
1357                 else
1358                 {
1359                     cont = (wxHtmlContainerCell*)c;
1360                     if ( IsEmptyContainer(cont) )
1361                     {
1362                         cont->SetIndent(0, wxHTML_INDENT_VERTICAL);
1363                     }
1364                     else
1365                     {
1366                         cont->RemoveExtraSpacing(false, true);
1367                         break;
1368                     }
1369                 }
1370             }
1371         }
1372     }
1373 }
1374
1375
1376
1377
1378 // --------------------------------------------------------------------------
1379 // wxHtmlColourCell
1380 // --------------------------------------------------------------------------
1381
1382 IMPLEMENT_ABSTRACT_CLASS(wxHtmlColourCell, wxHtmlCell)
1383
1384 void wxHtmlColourCell::Draw(wxDC& dc,
1385                             int x, int y,
1386                             int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1387                             wxHtmlRenderingInfo& info)
1388 {
1389     DrawInvisible(dc, x, y, info);
1390 }
1391
1392 void wxHtmlColourCell::DrawInvisible(wxDC& dc,
1393                                      int WXUNUSED(x), int WXUNUSED(y),
1394                                      wxHtmlRenderingInfo& info)
1395 {
1396     wxHtmlRenderingState& state = info.GetState();
1397     if (m_Flags & wxHTML_CLR_FOREGROUND)
1398     {
1399         state.SetFgColour(m_Colour);
1400         if (state.GetSelectionState() != wxHTML_SEL_IN)
1401             dc.SetTextForeground(m_Colour);
1402         else
1403             dc.SetTextForeground(
1404                     info.GetStyle().GetSelectedTextColour(m_Colour));
1405     }
1406     if (m_Flags & wxHTML_CLR_BACKGROUND)
1407     {
1408         state.SetBgColour(m_Colour);
1409         if (state.GetSelectionState() != wxHTML_SEL_IN)
1410         {
1411             dc.SetTextBackground(m_Colour);
1412             dc.SetBackground(wxBrush(m_Colour, wxSOLID));
1413         }
1414         else
1415         {
1416             wxColour c = info.GetStyle().GetSelectedTextBgColour(m_Colour);
1417             dc.SetTextBackground(c);
1418             dc.SetBackground(wxBrush(c, wxSOLID));
1419         }
1420     }
1421 }
1422
1423
1424
1425
1426 // ---------------------------------------------------------------------------
1427 // wxHtmlFontCell
1428 // ---------------------------------------------------------------------------
1429
1430 IMPLEMENT_ABSTRACT_CLASS(wxHtmlFontCell, wxHtmlCell)
1431
1432 void wxHtmlFontCell::Draw(wxDC& dc,
1433                           int WXUNUSED(x), int WXUNUSED(y),
1434                           int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1435                           wxHtmlRenderingInfo& WXUNUSED(info))
1436 {
1437     dc.SetFont(m_Font);
1438 }
1439
1440 void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y),
1441                                    wxHtmlRenderingInfo& WXUNUSED(info))
1442 {
1443     dc.SetFont(m_Font);
1444 }
1445
1446
1447
1448
1449
1450
1451
1452
1453 // ---------------------------------------------------------------------------
1454 // wxHtmlWidgetCell
1455 // ---------------------------------------------------------------------------
1456
1457 IMPLEMENT_ABSTRACT_CLASS(wxHtmlWidgetCell, wxHtmlCell)
1458
1459 wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w)
1460 {
1461     int sx, sy;
1462     m_Wnd = wnd;
1463     m_Wnd->GetSize(&sx, &sy);
1464     m_Width = sx, m_Height = sy;
1465     m_WidthFloat = w;
1466 }
1467
1468
1469 void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc),
1470                             int WXUNUSED(x), int WXUNUSED(y),
1471                             int WXUNUSED(view_y1), int WXUNUSED(view_y2),
1472                             wxHtmlRenderingInfo& WXUNUSED(info))
1473 {
1474     int absx = 0, absy = 0, stx, sty;
1475     wxHtmlCell *c = this;
1476
1477     while (c)
1478     {
1479         absx += c->GetPosX();
1480         absy += c->GetPosY();
1481         c = c->GetParent();
1482     }
1483
1484     ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
1485     m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
1486 }
1487
1488
1489
1490 void wxHtmlWidgetCell::DrawInvisible(wxDC& WXUNUSED(dc),
1491                                      int WXUNUSED(x), int WXUNUSED(y),
1492                                      wxHtmlRenderingInfo& WXUNUSED(info))
1493 {
1494     int absx = 0, absy = 0, stx, sty;
1495     wxHtmlCell *c = this;
1496
1497     while (c)
1498     {
1499         absx += c->GetPosX();
1500         absy += c->GetPosY();
1501         c = c->GetParent();
1502     }
1503
1504     ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty);
1505     m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy  - wxHTML_SCROLL_STEP * sty, m_Width, m_Height);
1506 }
1507
1508
1509
1510 void wxHtmlWidgetCell::Layout(int w)
1511 {
1512     if (m_WidthFloat != 0)
1513     {
1514         m_Width = (w * m_WidthFloat) / 100;
1515         m_Wnd->SetSize(m_Width, m_Height);
1516     }
1517
1518     wxHtmlCell::Layout(w);
1519 }
1520
1521
1522
1523 // ----------------------------------------------------------------------------
1524 // wxHtmlTerminalCellsInterator
1525 // ----------------------------------------------------------------------------
1526
1527 const wxHtmlCell* wxHtmlTerminalCellsInterator::operator++()
1528 {
1529     if ( !m_pos )
1530         return NULL;
1531
1532     do
1533     {
1534         if ( m_pos == m_to )
1535         {
1536             m_pos = NULL;
1537             return NULL;
1538         }
1539
1540         if ( m_pos->GetNext() )
1541             m_pos = m_pos->GetNext();
1542         else
1543         {
1544             // we must go up the hierarchy until we reach container where this
1545             // is not the last child, and then go down to first terminal cell:
1546             while ( m_pos->GetNext() == NULL )
1547             {
1548                 m_pos = m_pos->GetParent();
1549                 if ( !m_pos )
1550                     return NULL;
1551             }
1552             m_pos = m_pos->GetNext();
1553         }
1554         while ( m_pos->GetFirstChild() != NULL )
1555             m_pos = m_pos->GetFirstChild();
1556     } while ( !m_pos->IsTerminalCell() );
1557
1558     return m_pos;
1559 }
1560
1561
1562
1563
1564
1565
1566
1567 //-----------------------------------------------------------------------------
1568 // Cleanup
1569 //-----------------------------------------------------------------------------
1570
1571 class wxHtmlCellModule: public wxModule
1572 {
1573 DECLARE_DYNAMIC_CLASS(wxHtmlCellModule)
1574 public:
1575     wxHtmlCellModule() : wxModule() {}
1576     bool OnInit() { return true; }
1577     void OnExit()
1578     {
1579         wxDELETE(gs_cursorLink);
1580         wxDELETE(gs_cursorText);
1581     }
1582 };
1583
1584 IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellModule, wxModule)
1585
1586 #endif