src/html/htmlwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        htmlwin.cpp
   3 // Purpose:     wxHtmlWindow class for parsing & displaying HTML (implementation)
   4 // Author:      Vaclav Slavik
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1999 Vaclav Slavik
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  12 #pragma implementation "htmlwin.h"
  13 #pragma implementation "htmlproc.h"
  14 #endif
  15
  16 #include "wx/wxprec.h"
  17
  18 #include "wx/defs.h"
  19 #if wxUSE_HTML && wxUSE_STREAMS
  20
  21 #ifdef __BORLANDC__
  22 #pragma hdrstop
  23 #endif
  24
  25 #ifndef WXPRECOMP
  26     #include "wx/log.h"
  27     #include "wx/intl.h"
  28     #include "wx/dcclient.h"
  29     #include "wx/frame.h"
  30 #endif
  31
  32 #include "wx/html/htmlwin.h"
  33 #include "wx/html/htmlproc.h"
  34 #include "wx/list.h"
  35 #include "wx/clipbrd.h"
  36 #include "wx/dataobj.h"
  37 #include "wx/timer.h"
  38 #include "wx/dcmemory.h"
  39 #include "wx/settings.h"
  40
  41 #include "wx/arrimpl.cpp"
  42 #include "wx/listimpl.cpp"
  43
  44
  45 #if wxUSE_CLIPBOARD
  46 // ----------------------------------------------------------------------------
  47 // wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll
  48 // events when a captured mouse is held outside the window
  49 // ----------------------------------------------------------------------------
  50
  51 class wxHtmlWinAutoScrollTimer : public wxTimer
  52 {
  53 public:
  54     wxHtmlWinAutoScrollTimer(wxScrolledWindow *win,
  55                       wxEventType eventTypeToSend,
  56                       int pos, int orient)
  57     {
  58         m_win = win;
  59         m_eventType = eventTypeToSend;
  60         m_pos = pos;
  61         m_orient = orient;
  62     }
  63
  64     virtual void Notify();
  65
  66 private:
  67     wxScrolledWindow *m_win;
  68     wxEventType m_eventType;
  69     int m_pos,
  70         m_orient;
  71
  72     DECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer)
  73 };
  74
  75 void wxHtmlWinAutoScrollTimer::Notify()
  76 {
  77     // only do all this as long as the window is capturing the mouse
  78     if ( wxWindow::GetCapture() != m_win )
  79     {
  80         Stop();
  81     }
  82     else // we still capture the mouse, continue generating events
  83     {
  84         // first scroll the window if we are allowed to do it
  85         wxScrollWinEvent event1(m_eventType, m_pos, m_orient);
  86         event1.SetEventObject(m_win);
  87         if ( m_win->GetEventHandler()->ProcessEvent(event1) )
  88         {
  89             // and then send a pseudo mouse-move event to refresh the selection
  90             wxMouseEvent event2(wxEVT_MOTION);
  91             wxGetMousePosition(&event2.m_x, &event2.m_y);
  92
  93             // the mouse event coordinates should be client, not screen as
  94             // returned by wxGetMousePosition
  95             wxWindow *parentTop = m_win;
  96             while ( parentTop->GetParent() )
  97                 parentTop = parentTop->GetParent();
  98             wxPoint ptOrig = parentTop->GetPosition();
  99             event2.m_x -= ptOrig.x;
 100             event2.m_y -= ptOrig.y;
 101
 102             event2.SetEventObject(m_win);
 103
 104             // FIXME: we don't fill in the other members - ok?
 105             m_win->GetEventHandler()->ProcessEvent(event2);
 106         }
 107         else // can't scroll further, stop
 108         {
 109             Stop();
 110         }
 111     }
 112 }
 113
 114 #endif // wxUSE_CLIPBOARD
 115
 116
 117
 118 //-----------------------------------------------------------------------------
 119 // wxHtmlHistoryItem
 120 //-----------------------------------------------------------------------------
 121
 122 // item of history list
 123 class WXDLLIMPEXP_HTML wxHtmlHistoryItem
 124 {
 125 public:
 126     wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
 127     int GetPos() const {return m_Pos;}
 128     void SetPos(int p) {m_Pos = p;}
 129     const wxString& GetPage() const {return m_Page;}
 130     const wxString& GetAnchor() const {return m_Anchor;}
 131
 132 private:
 133     wxString m_Page;
 134     wxString m_Anchor;
 135     int m_Pos;
 136 };
 137
 138
 139 //-----------------------------------------------------------------------------
 140 // our private arrays:
 141 //-----------------------------------------------------------------------------
 142
 143 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
 144 WX_DEFINE_OBJARRAY(wxHtmlHistoryArray);
 145
 146 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
 147 WX_DEFINE_LIST(wxHtmlProcessorList);
 148
 149 //-----------------------------------------------------------------------------
 150 // wxHtmlWindow
 151 //-----------------------------------------------------------------------------
 152
 153
 154 void wxHtmlWindow::Init()
 155 {
 156     m_tmpMouseMoved = false;
 157     m_tmpLastLink = NULL;
 158     m_tmpLastCell = NULL;
 159     m_tmpCanDrawLocks = 0;
 160     m_FS = new wxFileSystem();
 161 #if wxUSE_STATUSBAR
 162     m_RelatedStatusBar = -1;
 163 #endif // wxUSE_STATUSBAR
 164     m_RelatedFrame = NULL;
 165     m_TitleFormat = wxT("%s");
 166     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 167     m_Cell = NULL;
 168     m_Parser = new wxHtmlWinParser(this);
 169     m_Parser->SetFS(m_FS);
 170     m_HistoryPos = -1;
 171     m_HistoryOn = true;
 172     m_History = new wxHtmlHistoryArray;
 173     m_Processors = NULL;
 174     m_Style = 0;
 175     SetBorders(10);
 176     m_selection = NULL;
 177     m_makingSelection = false;
 178 #if wxUSE_CLIPBOARD
 179     m_timerAutoScroll = NULL;
 180     m_lastDoubleClick = 0;
 181 #endif // wxUSE_CLIPBOARD
 182     m_backBuffer = NULL;
 183     m_eraseBgInOnPaint = false;
 184     m_tmpSelFromCell = NULL;
 185 }
 186
 187 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
 188                           const wxPoint& pos, const wxSize& size,
 189                           long style, const wxString& name)
 190 {
 191     if (!wxScrolledWindow::Create(parent, id, pos, size,
 192                                   style | wxVSCROLL | wxHSCROLL,
 193                                   name))
 194         return false;
 195
 196     m_Style = style;
 197     SetPage(wxT("<html><body></body></html>"));
 198     return true;
 199 }
 200
 201
 202 wxHtmlWindow::~wxHtmlWindow()
 203 {
 204 #if wxUSE_CLIPBOARD
 205     StopAutoScrolling();
 206 #endif // wxUSE_CLIPBOARD
 207     HistoryClear();
 208
 209     delete m_selection;
 210
 211     delete m_Cell;
 212
 213     if ( m_Processors )
 214     {
 215         WX_CLEAR_LIST(wxHtmlProcessorList, *m_Processors);
 216     }
 217
 218     delete m_Parser;
 219     delete m_FS;
 220     delete m_History;
 221     delete m_Processors;
 222     delete m_backBuffer;
 223 }
 224
 225
 226
 227 void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
 228 {
 229     m_RelatedFrame = frame;
 230     m_TitleFormat = format;
 231 }
 232
 233
 234
 235 #if wxUSE_STATUSBAR
 236 void wxHtmlWindow::SetRelatedStatusBar(int bar)
 237 {
 238     m_RelatedStatusBar = bar;
 239 }
 240 #endif // wxUSE_STATUSBAR
 241
 242
 243
 244 void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
 245 {
 246     wxString op = m_OpenedPage;
 247
 248     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 249     // fonts changed => contents invalid, so reload the page:
 250     SetPage(wxT("<html><body></body></html>"));
 251     if (!op.empty())
 252         LoadPage(op);
 253 }
 254
 255 void wxHtmlWindow::SetStandardFonts(int size,
 256                                     const wxString& normal_face,
 257                                     const wxString& fixed_face)
 258 {
 259     wxString op = m_OpenedPage;
 260
 261     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 262     // fonts changed => contents invalid, so reload the page:
 263     SetPage(wxT("<html><body></body></html>"));
 264     if (!op.empty())
 265         LoadPage(op);
 266 }
 267
 268
 269 bool wxHtmlWindow::SetPage(const wxString& source)
 270 {
 271     wxString newsrc(source);
 272
 273     wxDELETE(m_selection);
 274
 275     // we will soon delete all the cells, so clear pointers to them:
 276     m_tmpSelFromCell = NULL;
 277
 278     // pass HTML through registered processors:
 279     if (m_Processors || m_GlobalProcessors)
 280     {
 281         wxHtmlProcessorList::compatibility_iterator nodeL, nodeG;
 282         int prL, prG;
 283
 284         nodeL = (m_Processors) ? m_Processors->GetFirst() : wxHtmlProcessorList::compatibility_iterator();
 285         nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : wxHtmlProcessorList::compatibility_iterator();
 286
 287         // VS: there are two lists, global and local, both of them sorted by
 288         //     priority. Since we have to go through _both_ lists with
 289         //     decreasing priority, we "merge-sort" the lists on-line by
 290         //     processing that one of the two heads that has higher priority
 291         //     in every iteration
 292         while (nodeL || nodeG)
 293         {
 294             prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1;
 295             prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1;
 296             if (prL > prG)
 297             {
 298                 if (nodeL->GetData()->IsEnabled())
 299                     newsrc = nodeL->GetData()->Process(newsrc);
 300                 nodeL = nodeL->GetNext();
 301             }
 302             else // prL <= prG
 303             {
 304                 if (nodeG->GetData()->IsEnabled())
 305                     newsrc = nodeG->GetData()->Process(newsrc);
 306                 nodeG = nodeG->GetNext();
 307             }
 308         }
 309     }
 310
 311     // ...and run the parser on it:
 312     wxClientDC *dc = new wxClientDC(this);
 313     dc->SetMapMode(wxMM_TEXT);
 314     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
 315     SetBackgroundImage(wxNullBitmap);
 316     m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
 317     m_Parser->SetDC(dc);
 318     if (m_Cell)
 319     {
 320         delete m_Cell;
 321         m_Cell = NULL;
 322     }
 323     m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
 324     delete dc;
 325     m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 326     m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER);
 327     CreateLayout();
 328     if (m_tmpCanDrawLocks == 0)
 329         Refresh();
 330     return true;
 331 }
 332
 333 bool wxHtmlWindow::AppendToPage(const wxString& source)
 334 {
 335     return SetPage(*(GetParser()->GetSource()) + source);
 336 }
 337
 338 bool wxHtmlWindow::LoadPage(const wxString& location)
 339 {
 340     wxBusyCursor busyCursor;
 341
 342     wxFSFile *f;
 343     bool rt_val;
 344     bool needs_refresh = false;
 345
 346     m_tmpCanDrawLocks++;
 347     if (m_HistoryOn && (m_HistoryPos != -1))
 348     {
 349         // store scroll position into history item:
 350         int x, y;
 351         GetViewStart(&x, &y);
 352         (*m_History)[m_HistoryPos].SetPos(y);
 353     }
 354
 355     if (location[0] == wxT('#'))
 356     {
 357         // local anchor:
 358         wxString anch = location.Mid(1) /*1 to end*/;
 359         m_tmpCanDrawLocks--;
 360         rt_val = ScrollToAnchor(anch);
 361         m_tmpCanDrawLocks++;
 362     }
 363     else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
 364     {
 365         wxString anch = location.AfterFirst(wxT('#'));
 366         m_tmpCanDrawLocks--;
 367         rt_val = ScrollToAnchor(anch);
 368         m_tmpCanDrawLocks++;
 369     }
 370     else if (location.Find(wxT('#')) != wxNOT_FOUND &&
 371              (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
 372     {
 373         wxString anch = location.AfterFirst(wxT('#'));
 374         m_tmpCanDrawLocks--;
 375         rt_val = ScrollToAnchor(anch);
 376         m_tmpCanDrawLocks++;
 377     }
 378
 379     else
 380     {
 381         needs_refresh = true;
 382 #if wxUSE_STATUSBAR
 383         // load&display it:
 384         if (m_RelatedStatusBar != -1)
 385         {
 386             m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
 387             Refresh(false);
 388         }
 389 #endif // wxUSE_STATUSBAR
 390
 391         f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
 392
 393         // try to interpret 'location' as filename instead of URL:
 394         if (f == NULL)
 395         {
 396             wxFileName fn(location);
 397             wxString location2 = wxFileSystem::FileNameToURL(fn);
 398             f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
 399         }
 400
 401         if (f == NULL)
 402         {
 403             wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
 404             m_tmpCanDrawLocks--;
 405             return false;
 406         }
 407
 408         else
 409         {
 410             wxList::compatibility_iterator node;
 411             wxString src = wxEmptyString;
 412
 413 #if wxUSE_STATUSBAR
 414             if (m_RelatedStatusBar != -1)
 415             {
 416                 wxString msg = _("Loading : ") + location;
 417                 m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
 418                 Refresh(false);
 419             }
 420 #endif // wxUSE_STATUSBAR
 421
 422             node = m_Filters.GetFirst();
 423             while (node)
 424             {
 425                 wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 426                 if (h->CanRead(*f))
 427                 {
 428                     src = h->ReadFile(*f);
 429                     break;
 430                 }
 431                 node = node->GetNext();
 432             }
 433             if (src == wxEmptyString)
 434             {
 435                 if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
 436                 src = m_DefaultFilter->ReadFile(*f);
 437             }
 438
 439             m_FS->ChangePathTo(f->GetLocation());
 440             rt_val = SetPage(src);
 441             m_OpenedPage = f->GetLocation();
 442             if (f->GetAnchor() != wxEmptyString)
 443             {
 444                 ScrollToAnchor(f->GetAnchor());
 445             }
 446
 447             delete f;
 448
 449 #if wxUSE_STATUSBAR
 450             if (m_RelatedStatusBar != -1)
 451                 m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
 452 #endif // wxUSE_STATUSBAR
 453         }
 454     }
 455
 456     if (m_HistoryOn) // add this page to history there:
 457     {
 458         int c = m_History->GetCount() - (m_HistoryPos + 1);
 459
 460         if (m_HistoryPos < 0 ||
 461             (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage ||
 462             (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor)
 463         {
 464             m_HistoryPos++;
 465             for (int i = 0; i < c; i++)
 466                 m_History->RemoveAt(m_HistoryPos);
 467             m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
 468         }
 469     }
 470
 471     if (m_OpenedPageTitle == wxEmptyString)
 472         OnSetTitle(wxFileNameFromPath(m_OpenedPage));
 473
 474     if (needs_refresh)
 475     {
 476         m_tmpCanDrawLocks--;
 477         Refresh();
 478     }
 479     else
 480         m_tmpCanDrawLocks--;
 481
 482     return rt_val;
 483 }
 484
 485
 486 bool wxHtmlWindow::LoadFile(const wxFileName& filename)
 487 {
 488     wxString url = wxFileSystem::FileNameToURL(filename);
 489     return LoadPage(url);
 490 }
 491
 492
 493 bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
 494 {
 495     const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor);
 496     if (!c)
 497     {
 498         wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
 499         return false;
 500     }
 501     else
 502     {
 503         int y;
 504
 505         for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
 506         Scroll(-1, y / wxHTML_SCROLL_STEP);
 507         m_OpenedAnchor = anchor;
 508         return true;
 509     }
 510 }
 511
 512
 513 void wxHtmlWindow::OnSetTitle(const wxString& title)
 514 {
 515     if (m_RelatedFrame)
 516     {
 517         wxString tit;
 518         tit.Printf(m_TitleFormat, title.c_str());
 519         m_RelatedFrame->SetTitle(tit);
 520     }
 521     m_OpenedPageTitle = title;
 522 }
 523
 524
 525
 526
 527
 528 void wxHtmlWindow::CreateLayout()
 529 {
 530     int ClientWidth, ClientHeight;
 531
 532     if (!m_Cell) return;
 533
 534     if (m_Style & wxHW_SCROLLBAR_NEVER)
 535     {
 536         SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
 537         GetClientSize(&ClientWidth, &ClientHeight);
 538         m_Cell->Layout(ClientWidth);
 539     }
 540
 541     else {
 542         GetClientSize(&ClientWidth, &ClientHeight);
 543         m_Cell->Layout(ClientWidth);
 544         if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
 545         {
 546             SetScrollbars(
 547                   wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
 548                   m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
 549                   (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
 550                   /*cheat: top-level frag is always container*/);
 551         }
 552         else /* we fit into window, no need for scrollbars */
 553         {
 554             SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
 555             GetClientSize(&ClientWidth, &ClientHeight);
 556             m_Cell->Layout(ClientWidth); // ...and relayout
 557         }
 558     }
 559 }
 560
 561
 562
 563 void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
 564 {
 565     wxString oldpath;
 566     wxString tmp;
 567     int p_fontsizes[7];
 568     wxString p_fff, p_ffn;
 569
 570     if (path != wxEmptyString)
 571     {
 572         oldpath = cfg->GetPath();
 573         cfg->SetPath(path);
 574     }
 575
 576     m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders);
 577     p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 578     p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 579     for (int i = 0; i < 7; i++)
 580     {
 581         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 582         p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]);
 583     }
 584     SetFonts(p_ffn, p_fff, p_fontsizes);
 585
 586     if (path != wxEmptyString)
 587         cfg->SetPath(oldpath);
 588 }
 589
 590
 591
 592 void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
 593 {
 594     wxString oldpath;
 595     wxString tmp;
 596
 597     if (path != wxEmptyString)
 598     {
 599         oldpath = cfg->GetPath();
 600         cfg->SetPath(path);
 601     }
 602
 603     cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders);
 604     cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed);
 605     cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal);
 606     for (int i = 0; i < 7; i++)
 607     {
 608         tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
 609         cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]);
 610     }
 611
 612     if (path != wxEmptyString)
 613         cfg->SetPath(oldpath);
 614 }
 615
 616
 617
 618 bool wxHtmlWindow::HistoryBack()
 619 {
 620     wxString a, l;
 621
 622     if (m_HistoryPos < 1) return false;
 623
 624     // store scroll position into history item:
 625     int x, y;
 626     GetViewStart(&x, &y);
 627     (*m_History)[m_HistoryPos].SetPos(y);
 628
 629     // go to previous position:
 630     m_HistoryPos--;
 631
 632     l = (*m_History)[m_HistoryPos].GetPage();
 633     a = (*m_History)[m_HistoryPos].GetAnchor();
 634     m_HistoryOn = false;
 635     m_tmpCanDrawLocks++;
 636     if (a == wxEmptyString) LoadPage(l);
 637     else LoadPage(l + wxT("#") + a);
 638     m_HistoryOn = true;
 639     m_tmpCanDrawLocks--;
 640     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 641     Refresh();
 642     return true;
 643 }
 644
 645 bool wxHtmlWindow::HistoryCanBack()
 646 {
 647     if (m_HistoryPos < 1) return false;
 648     return true ;
 649 }
 650
 651
 652 bool wxHtmlWindow::HistoryForward()
 653 {
 654     wxString a, l;
 655
 656     if (m_HistoryPos == -1) return false;
 657     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 658
 659     m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
 660
 661     m_HistoryPos++;
 662     l = (*m_History)[m_HistoryPos].GetPage();
 663     a = (*m_History)[m_HistoryPos].GetAnchor();
 664     m_HistoryOn = false;
 665     m_tmpCanDrawLocks++;
 666     if (a == wxEmptyString) LoadPage(l);
 667     else LoadPage(l + wxT("#") + a);
 668     m_HistoryOn = true;
 669     m_tmpCanDrawLocks--;
 670     Scroll(0, (*m_History)[m_HistoryPos].GetPos());
 671     Refresh();
 672     return true;
 673 }
 674
 675 bool wxHtmlWindow::HistoryCanForward()
 676 {
 677     if (m_HistoryPos == -1) return false;
 678     if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
 679     return true ;
 680 }
 681
 682
 683 void wxHtmlWindow::HistoryClear()
 684 {
 685     m_History->Empty();
 686     m_HistoryPos = -1;
 687 }
 688
 689 void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor)
 690 {
 691     if (!m_Processors)
 692     {
 693         m_Processors = new wxHtmlProcessorList;
 694     }
 695     wxHtmlProcessorList::compatibility_iterator node;
 696
 697     for (node = m_Processors->GetFirst(); node; node = node->GetNext())
 698     {
 699         if (processor->GetPriority() > node->GetData()->GetPriority())
 700         {
 701             m_Processors->Insert(node, processor);
 702             return;
 703         }
 704     }
 705     m_Processors->Append(processor);
 706 }
 707
 708 /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor)
 709 {
 710     if (!m_GlobalProcessors)
 711     {
 712         m_GlobalProcessors = new wxHtmlProcessorList;
 713     }
 714     wxHtmlProcessorList::compatibility_iterator node;
 715
 716     for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
 717     {
 718         if (processor->GetPriority() > node->GetData()->GetPriority())
 719         {
 720             m_GlobalProcessors->Insert(node, processor);
 721             return;
 722         }
 723     }
 724     m_GlobalProcessors->Append(processor);
 725 }
 726
 727
 728
 729 wxList wxHtmlWindow::m_Filters;
 730 wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
 731 wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
 732
 733 void wxHtmlWindow::CleanUpStatics()
 734 {
 735     wxDELETE(m_DefaultFilter);
 736     WX_CLEAR_LIST(wxList, m_Filters);
 737     if (m_GlobalProcessors)
 738         WX_CLEAR_LIST(wxHtmlProcessorList, *m_GlobalProcessors);
 739     wxDELETE(m_GlobalProcessors);
 740 }
 741
 742
 743
 744 void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
 745 {
 746     m_Filters.Append(filter);
 747 }
 748
 749
 750 bool wxHtmlWindow::IsSelectionEnabled() const
 751 {
 752 #if wxUSE_CLIPBOARD
 753     return !(m_Style & wxHW_NO_SELECTION);
 754 #else
 755     return false;
 756 #endif
 757 }
 758
 759
 760 #if wxUSE_CLIPBOARD
 761 wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
 762 {
 763     if ( !sel )
 764         return wxEmptyString;
 765
 766     wxClientDC dc(this);
 767
 768     const wxHtmlCell *end = sel->GetToCell();
 769     wxString text;
 770     wxHtmlTerminalCellsInterator i(sel->GetFromCell(), end);
 771     if ( i )
 772     {
 773         text << i->ConvertToText(sel);
 774         ++i;
 775     }
 776     const wxHtmlCell *prev = *i;
 777     while ( i )
 778     {
 779         if ( prev->GetParent() != i->GetParent() )
 780             text << _T('\n');
 781         text << i->ConvertToText(*i == end ? sel : NULL);
 782         prev = *i;
 783         ++i;
 784     }
 785     return text;
 786 }
 787
 788 wxString wxHtmlWindow::ToText()
 789 {
 790     if (m_Cell)
 791     {
 792         wxHtmlSelection sel;
 793         sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
 794         return DoSelectionToText(&sel);
 795     }
 796     else
 797         return wxEmptyString;
 798 }
 799
 800 #endif // wxUSE_CLIPBOARD
 801
 802 bool wxHtmlWindow::CopySelection(ClipboardType t)
 803 {
 804 #if wxUSE_CLIPBOARD
 805     if ( m_selection )
 806     {
 807 #if defined(__UNIX__) && !defined(__WXMAC__)
 808         wxTheClipboard->UsePrimarySelection(t == Primary);
 809 #else // !__UNIX__
 810         // Primary selection exists only under X11, so don't do anything under
 811         // the other platforms when we try to access it
 812         //
 813         // TODO: this should be abstracted at wxClipboard level!
 814         if ( t == Primary )
 815             return false;
 816 #endif // __UNIX__/!__UNIX__
 817
 818         if ( wxTheClipboard->Open() )
 819         {
 820             const wxString txt(SelectionToText());
 821             wxTheClipboard->SetData(new wxTextDataObject(txt));
 822             wxTheClipboard->Close();
 823             wxLogTrace(_T("wxhtmlselection"),
 824                        _("Copied to clipboard:\"%s\""), txt.c_str());
 825
 826             return true;
 827         }
 828     }
 829 #endif // wxUSE_CLIPBOARD
 830
 831     return false;
 832 }
 833
 834
 835 void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
 836 {
 837     const wxMouseEvent *e = link.GetEvent();
 838     if (e == NULL || e->LeftUp())
 839         LoadPage(link.GetHref());
 840 }
 841
 842 void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
 843                                  wxCoord x, wxCoord y,
 844                                  const wxMouseEvent& event)
 845 {
 846     wxCHECK_RET( cell, _T("can't be called with NULL cell") );
 847
 848     cell->OnMouseClick(this, x, y, event);
 849 }
 850
 851 void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
 852                                     wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
 853 {
 854     // do nothing here
 855 }
 856
 857 void wxHtmlWindow::OnEraseBackground(wxEraseEvent& event)
 858 {
 859     if ( !m_bmpBg.Ok() )
 860     {
 861         // don't even skip the event, if we don't have a bg bitmap we're going
 862         // to overwrite background in OnPaint() below anyhow, so letting the
 863         // default handling take place would only result in flicker, just set a
 864         // flag to erase the background below
 865         m_eraseBgInOnPaint = true;
 866         return;
 867     }
 868
 869     wxDC& dc = *event.GetDC();
 870
 871     // if the image is not fully opaque, we have to erase the background before
 872     // drawing it, however avoid doing it for opaque images as this would just
 873     // result in extra flicker without any other effect as background is
 874     // completely covered anyhow
 875     if ( m_bmpBg.GetMask() )
 876     {
 877         dc.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
 878         dc.Clear();
 879     }
 880
 881     const wxSize sizeWin(GetClientSize());
 882     const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
 883     for ( wxCoord x = 0; x < sizeWin.x; x += sizeBmp.x )
 884     {
 885         for ( wxCoord y = 0; y < sizeWin.y; y += sizeBmp.y )
 886         {
 887             dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
 888         }
 889     }
 890 }
 891
 892 void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
 893 {
 894     wxPaintDC dc(this);
 895
 896     if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
 897         return;
 898
 899     int x, y;
 900     GetViewStart(&x, &y);
 901     wxRect rect = GetUpdateRegion().GetBox();
 902     wxSize sz = GetSize();
 903
 904     wxMemoryDC dcm;
 905     if ( !m_backBuffer )
 906         m_backBuffer = new wxBitmap(sz.x, sz.y);
 907     dcm.SelectObject(*m_backBuffer);
 908
 909     if ( m_eraseBgInOnPaint )
 910     {
 911         dcm.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
 912         dcm.Clear();
 913
 914         m_eraseBgInOnPaint = false;
 915     }
 916     else // someone has already erased the background, keep it
 917     {
 918         // preserve the existing background, otherwise we'd erase anything the
 919         // user code had drawn in its EVT_ERASE_BACKGROUND handler when we do
 920         // the Blit back below
 921         dcm.Blit(0, rect.GetTop(),
 922                  sz.x, rect.GetBottom() - rect.GetTop() + 1,
 923                  &dc,
 924                  0, rect.GetTop());
 925     }
 926
 927     PrepareDC(dcm);
 928     dcm.SetMapMode(wxMM_TEXT);
 929     dcm.SetBackgroundMode(wxTRANSPARENT);
 930
 931     wxHtmlRenderingInfo rinfo;
 932     wxDefaultHtmlRenderingStyle rstyle;
 933     rinfo.SetSelection(m_selection);
 934     rinfo.SetStyle(&rstyle);
 935     m_Cell->Draw(dcm, 0, 0,
 936                  y * wxHTML_SCROLL_STEP + rect.GetTop(),
 937                  y * wxHTML_SCROLL_STEP + rect.GetBottom(),
 938                  rinfo);
 939
 940 //#define DEBUG_HTML_SELECTION
 941 #ifdef DEBUG_HTML_SELECTION
 942     {
 943     int xc, yc, x, y;
 944     wxGetMousePosition(&xc, &yc);
 945     ScreenToClient(&xc, &yc);
 946     CalcUnscrolledPosition(xc, yc, &x, &y);
 947     wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
 948     wxHtmlCell *before =
 949         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
 950     wxHtmlCell *after =
 951         m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
 952
 953     dcm.SetBrush(*wxTRANSPARENT_BRUSH);
 954     dcm.SetPen(*wxBLACK_PEN);
 955     if (at)
 956         dcm.DrawRectangle(at->GetAbsPos(),
 957                           wxSize(at->GetWidth(),at->GetHeight()));
 958     dcm.SetPen(*wxGREEN_PEN);
 959     if (before)
 960         dcm.DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
 961                           before->GetWidth()-2,before->GetHeight()-2);
 962     dcm.SetPen(*wxRED_PEN);
 963     if (after)
 964         dcm.DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
 965                           after->GetWidth()-4,after->GetHeight()-4);
 966     }
 967 #endif
 968
 969     dcm.SetDeviceOrigin(0,0);
 970     dc.Blit(0, rect.GetTop(),
 971             sz.x, rect.GetBottom() - rect.GetTop() + 1,
 972             &dcm,
 973             0, rect.GetTop());
 974 }
 975
 976
 977
 978
 979 void wxHtmlWindow::OnSize(wxSizeEvent& event)
 980 {
 981     wxDELETE(m_backBuffer);
 982
 983     wxScrolledWindow::OnSize(event);
 984     CreateLayout();
 985
 986     // Recompute selection if necessary:
 987     if ( m_selection )
 988     {
 989         m_selection->Set(m_selection->GetFromCell(),
 990                          m_selection->GetToCell());
 991         m_selection->ClearPrivPos();
 992     }
 993
 994     Refresh();
 995 }
 996
 997
 998 void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
 999 {
1000     m_tmpMouseMoved = true;
1001 }
1002
1003 void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
1004 {
1005 #if wxUSE_CLIPBOARD
1006     if ( event.LeftDown() && IsSelectionEnabled() )
1007     {
1008         const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
1009         if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
1010         {
1011             SelectLine(CalcUnscrolledPosition(event.GetPosition()));
1012
1013             (void) CopySelection();
1014         }
1015         else
1016         {
1017             m_makingSelection = true;
1018
1019             if ( m_selection )
1020             {
1021                 wxDELETE(m_selection);
1022                 Refresh();
1023             }
1024             m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
1025             m_tmpSelFromCell = NULL;
1026
1027             CaptureMouse();
1028         }
1029     }
1030 #endif // wxUSE_CLIPBOARD
1031 }
1032
1033 void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
1034 {
1035 #if wxUSE_CLIPBOARD
1036     if ( m_makingSelection )
1037     {
1038         ReleaseMouse();
1039         m_makingSelection = false;
1040
1041         // did the user move the mouse far enough from starting point?
1042         if ( CopySelection(Primary) )
1043         {
1044             // we don't want mouse up event that ended selecting to be
1045             // handled as mouse click and e.g. follow hyperlink:
1046             return;
1047         }
1048     }
1049 #endif // wxUSE_CLIPBOARD
1050
1051     SetFocus();
1052     if ( m_Cell )
1053     {
1054         wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
1055         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1056
1057         // check is needed because FindCellByPos returns terminal cell and
1058         // containers may have empty borders -- in this case NULL will be
1059         // returned
1060         if ( cell )
1061             OnCellClicked(cell, pos.x, pos.y, event);
1062     }
1063 }
1064
1065
1066
1067 void wxHtmlWindow::OnInternalIdle()
1068 {
1069     wxWindow::OnInternalIdle();
1070
1071     if (m_tmpMouseMoved && (m_Cell != NULL))
1072     {
1073 #ifdef DEBUG_HTML_SELECTION
1074         Refresh();
1075 #endif
1076         int xc, yc, x, y;
1077         wxGetMousePosition(&xc, &yc);
1078         ScreenToClient(&xc, &yc);
1079         CalcUnscrolledPosition(xc, yc, &x, &y);
1080
1081         wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
1082
1083         // handle selection update:
1084         if ( m_makingSelection )
1085         {
1086             if ( !m_tmpSelFromCell )
1087                 m_tmpSelFromCell = m_Cell->FindCellByPos(
1088                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y);
1089
1090             // NB: a trick - we adjust selFromPos to be upper left or bottom
1091             //     right corner of the first cell of the selection depending
1092             //     on whether the mouse is moving to the right or to the left.
1093             //     This gives us more "natural" behaviour when selecting
1094             //     a line (specifically, first cell of the next line is not
1095             //     included if you drag selection from left to right over
1096             //     entire line):
1097             wxPoint dirFromPos;
1098             if ( !m_tmpSelFromCell )
1099             {
1100                 dirFromPos = m_tmpSelFromPos;
1101             }
1102             else
1103             {
1104                 dirFromPos = m_tmpSelFromCell->GetAbsPos();
1105                 if ( x < m_tmpSelFromPos.x )
1106                 {
1107                     dirFromPos.x += m_tmpSelFromCell->GetWidth();
1108                     dirFromPos.y += m_tmpSelFromCell->GetHeight();
1109                 }
1110             }
1111             bool goingDown = dirFromPos.y < y ||
1112                              (dirFromPos.y == y && dirFromPos.x < x);
1113
1114             // determine selection span:
1115             if ( /*still*/ !m_tmpSelFromCell )
1116             {
1117                 if (goingDown)
1118                 {
1119                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1120                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1121                                          wxHTML_FIND_NEAREST_AFTER);
1122                     if (!m_tmpSelFromCell)
1123                         m_tmpSelFromCell = m_Cell->GetFirstTerminal();
1124                 }
1125                 else
1126                 {
1127                     m_tmpSelFromCell = m_Cell->FindCellByPos(
1128                                          m_tmpSelFromPos.x,m_tmpSelFromPos.y,
1129                                          wxHTML_FIND_NEAREST_BEFORE);
1130                     if (!m_tmpSelFromCell)
1131                         m_tmpSelFromCell = m_Cell->GetLastTerminal();
1132                 }
1133             }
1134
1135             wxHtmlCell *selcell = cell;
1136             if (!selcell)
1137             {
1138                 if (goingDown)
1139                 {
1140                     selcell = m_Cell->FindCellByPos(x, y,
1141                                                  wxHTML_FIND_NEAREST_BEFORE);
1142                     if (!selcell)
1143                         selcell = m_Cell->GetLastTerminal();
1144                 }
1145                 else
1146                 {
1147                     selcell = m_Cell->FindCellByPos(x, y,
1148                                                  wxHTML_FIND_NEAREST_AFTER);
1149                     if (!selcell)
1150                         selcell = m_Cell->GetFirstTerminal();
1151                 }
1152             }
1153
1154             // NB: it may *rarely* happen that the code above didn't find one
1155             //     of the cells, e.g. if wxHtmlWindow doesn't contain any
1156             //     visible cells.
1157             if ( selcell && m_tmpSelFromCell )
1158             {
1159                 if ( !m_selection )
1160                 {
1161                     // start selecting only if mouse movement was big enough
1162                     // (otherwise it was meant as mouse click, not selection):
1163                     const int PRECISION = 2;
1164                     wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
1165                     if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
1166                     {
1167                         m_selection = new wxHtmlSelection();
1168                     }
1169                 }
1170                 if ( m_selection )
1171                 {
1172                     if ( m_tmpSelFromCell->IsBefore(selcell) )
1173                     {
1174                         m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
1175                                          wxPoint(x,y), selcell);                                    }
1176                     else
1177                     {
1178                         m_selection->Set(wxPoint(x,y), selcell,
1179                                          m_tmpSelFromPos, m_tmpSelFromCell);
1180                     }
1181                     m_selection->ClearPrivPos();
1182                     Refresh();
1183                 }
1184             }
1185         }
1186
1187         // handle cursor and status bar text changes:
1188         if ( cell != m_tmpLastCell )
1189         {
1190             wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;
1191             wxCursor cur;
1192             if (cell)
1193                 cur = cell->GetCursor();
1194             else
1195                 cur = *wxSTANDARD_CURSOR;
1196             SetCursor(cur);
1197
1198             if (lnk != m_tmpLastLink)
1199             {
1200 #if wxUSE_STATUSBAR
1201                 if (lnk == NULL)
1202                 {
1203                     if (m_RelatedStatusBar != -1)
1204                         m_RelatedFrame->SetStatusText(wxEmptyString,
1205                                                       m_RelatedStatusBar);
1206                 }
1207                 else
1208                 {
1209                     if (m_RelatedStatusBar != -1)
1210                         m_RelatedFrame->SetStatusText(lnk->GetHref(),
1211                                                       m_RelatedStatusBar);
1212                 }
1213 #endif // wxUSE_STATUSBAR
1214                 m_tmpLastLink = lnk;
1215             }
1216
1217             m_tmpLastCell = cell;
1218         }
1219         else // mouse moved but stayed in the same cell
1220         {
1221             if ( cell )
1222                 OnCellMouseHover(cell, x, y);
1223         }
1224
1225         m_tmpMouseMoved = false;
1226     }
1227 }
1228
1229 #if wxUSE_CLIPBOARD
1230 void wxHtmlWindow::StopAutoScrolling()
1231 {
1232     if ( m_timerAutoScroll )
1233     {
1234         wxDELETE(m_timerAutoScroll);
1235     }
1236 }
1237
1238 void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
1239 {
1240     StopAutoScrolling();
1241     event.Skip();
1242 }
1243
1244 void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
1245 {
1246     // don't prevent the usual processing of the event from taking place
1247     event.Skip();
1248
1249     // when a captured mouse leave a scrolled window we start generate
1250     // scrolling events to allow, for example, extending selection beyond the
1251     // visible area in some controls
1252     if ( wxWindow::GetCapture() == this )
1253     {
1254         // where is the mouse leaving?
1255         int pos, orient;
1256         wxPoint pt = event.GetPosition();
1257         if ( pt.x < 0 )
1258         {
1259             orient = wxHORIZONTAL;
1260             pos = 0;
1261         }
1262         else if ( pt.y < 0 )
1263         {
1264             orient = wxVERTICAL;
1265             pos = 0;
1266         }
1267         else // we're lower or to the right of the window
1268         {
1269             wxSize size = GetClientSize();
1270             if ( pt.x > size.x )
1271             {
1272                 orient = wxHORIZONTAL;
1273                 pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
1274             }
1275             else if ( pt.y > size.y )
1276             {
1277                 orient = wxVERTICAL;
1278                 pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
1279             }
1280             else // this should be impossible
1281             {
1282                 // but seems to happen sometimes under wxMSW - maybe it's a bug
1283                 // there but for now just ignore it
1284
1285                 //wxFAIL_MSG( _T("can't understand where has mouse gone") );
1286
1287                 return;
1288             }
1289         }
1290
1291         // only start the auto scroll timer if the window can be scrolled in
1292         // this direction
1293         if ( !HasScrollbar(orient) )
1294             return;
1295
1296         delete m_timerAutoScroll;
1297         m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
1298                                 (
1299                                     this,
1300                                     pos == 0 ? wxEVT_SCROLLWIN_LINEUP
1301                                              : wxEVT_SCROLLWIN_LINEDOWN,
1302                                     pos,
1303                                     orient
1304                                 );
1305         m_timerAutoScroll->Start(50); // FIXME: make configurable
1306     }
1307 }
1308
1309 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
1310 {
1311     if ( IsSelectionEnabled() &&
1312          event.GetKeyCode() == 'C' && event.ControlDown() )
1313     {
1314         (void) CopySelection();
1315     }
1316 }
1317
1318 void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
1319 {
1320     (void) CopySelection();
1321 }
1322
1323 void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
1324 {
1325     // select word under cursor:
1326     if ( IsSelectionEnabled() )
1327     {
1328         SelectWord(CalcUnscrolledPosition(event.GetPosition()));
1329
1330         (void) CopySelection(Primary);
1331
1332         m_lastDoubleClick = wxGetLocalTimeMillis();
1333     }
1334     else
1335         event.Skip();
1336 }
1337
1338 void wxHtmlWindow::SelectWord(const wxPoint& pos)
1339 {
1340     if ( m_Cell )
1341     {
1342         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1343         if ( cell )
1344         {
1345             delete m_selection;
1346             m_selection = new wxHtmlSelection();
1347             m_selection->Set(cell, cell);
1348             RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
1349                                wxSize(cell->GetWidth(), cell->GetHeight())));
1350         }
1351     }
1352 }
1353
1354 void wxHtmlWindow::SelectLine(const wxPoint& pos)
1355 {
1356     if ( m_Cell )
1357     {
1358         wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
1359         if ( cell )
1360         {
1361             // We use following heuristic to find a "line": let the line be all
1362             // cells in same container as the cell under mouse cursor that are
1363             // neither completely above nor completely bellow the clicked cell
1364             // (i.e. are likely to be words positioned on same line of text).
1365
1366             int y1 = cell->GetAbsPos().y;
1367             int y2 = y1 + cell->GetHeight();
1368             int y;
1369             const wxHtmlCell *c;
1370             const wxHtmlCell *before = NULL;
1371             const wxHtmlCell *after = NULL;
1372
1373             // find last cell of line:
1374             for ( c = cell->GetNext(); c; c = c->GetNext())
1375             {
1376                 y = c->GetAbsPos().y;
1377                 if ( y + c->GetHeight() > y1 && y < y2 )
1378                     after = c;
1379                 else
1380                     break;
1381             }
1382             if ( !after )
1383                 after = cell;
1384
1385             // find first cell of line:
1386             for ( c = cell->GetParent()->GetFirstChild();
1387                     c && c != cell; c = c->GetNext())
1388             {
1389                 y = c->GetAbsPos().y;
1390                 if ( y + c->GetHeight() > y1 && y < y2 )
1391                 {
1392                     if ( ! before )
1393                         before = c;
1394                 }
1395                 else
1396                     before = NULL;
1397             }
1398             if ( !before )
1399                 before = cell;
1400
1401             delete m_selection;
1402             m_selection = new wxHtmlSelection();
1403             m_selection->Set(before, after);
1404
1405             Refresh();
1406         }
1407     }
1408 }
1409
1410 void wxHtmlWindow::SelectAll()
1411 {
1412     if ( m_Cell )
1413     {
1414         delete m_selection;
1415         m_selection = new wxHtmlSelection();
1416         m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
1417         Refresh();
1418     }
1419 }
1420
1421 #endif // wxUSE_CLIPBOARD
1422
1423
1424
1425 IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
1426
1427 #if wxUSE_EXTENDED_RTTI
1428 IMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
1429
1430 wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
1431 /*
1432     TODO PROPERTIES
1433         style , wxHW_SCROLLBAR_AUTO
1434         borders , (dimension)
1435         url , string
1436         htmlcode , string
1437 */
1438 wxEND_PROPERTIES_TABLE()
1439
1440 wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
1441 wxEND_HANDLERS_TABLE()
1442
1443 wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1444 #else
1445 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
1446 #endif
1447
1448 BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
1449     EVT_SIZE(wxHtmlWindow::OnSize)
1450     EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
1451     EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
1452     EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
1453     EVT_MOTION(wxHtmlWindow::OnMouseMove)
1454     EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground)
1455     EVT_PAINT(wxHtmlWindow::OnPaint)
1456 #if wxUSE_CLIPBOARD
1457     EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
1458     EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
1459     EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
1460     EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
1461     EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
1462 #endif // wxUSE_CLIPBOARD
1463 END_EVENT_TABLE()
1464
1465
1466
1467
1468
1469 // A module to allow initialization/cleanup
1470 // without calling these functions from app.cpp or from
1471 // the user's application.
1472
1473 class wxHtmlWinModule: public wxModule
1474 {
1475 DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
1476 public:
1477     wxHtmlWinModule() : wxModule() {}
1478     bool OnInit() { return true; }
1479     void OnExit() { wxHtmlWindow::CleanUpStatics(); }
1480 };
1481
1482 IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
1483
1484
1485 // This hack forces the linker to always link in m_* files
1486 // (wxHTML doesn't work without handlers from these files)
1487 #include "wx/html/forcelnk.h"
1488 FORCE_WXHTML_MODULES()
1489
1490 #endif // wxUSE_HTML
1491