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