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