src/x11/app.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        app.cpp
   3 // Purpose:     wxApp
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13     #pragma implementation "app.h"
  14 #endif
  15
  16 #include "wx/frame.h"
  17 #include "wx/app.h"
  18 #include "wx/utils.h"
  19 #include "wx/gdicmn.h"
  20 #include "wx/icon.h"
  21 #include "wx/dialog.h"
  22 #include "wx/log.h"
  23 #include "wx/module.h"
  24 #include "wx/memory.h"
  25 #include "wx/log.h"
  26 #include "wx/intl.h"
  27 #include "wx/evtloop.h"
  28 #include "wx/timer.h"
  29
  30 #include "wx/univ/theme.h"
  31 #include "wx/univ/renderer.h"
  32
  33 #define ABS(a)     (((a) < 0) ? -(a) : (a))
  34
  35 #if wxUSE_THREADS
  36     #include "wx/thread.h"
  37 #endif
  38
  39 #if wxUSE_WX_RESOURCES
  40     #include "wx/resource.h"
  41 #endif
  42
  43 #include "wx/x11/private.h"
  44
  45 #include <string.h>
  46
  47 //------------------------------------------------------------------------
  48 //   global data
  49 //------------------------------------------------------------------------
  50
  51 extern wxList wxPendingDelete;
  52
  53 wxHashTable *wxWidgetHashTable = NULL;
  54 wxHashTable *wxClientWidgetHashTable = NULL;
  55
  56 wxApp *wxTheApp = NULL;
  57
  58 // This is set within wxEntryStart -- too early on
  59 // to put these in wxTheApp
  60 static int g_newArgc = 0;
  61 static wxChar** g_newArgv = NULL;
  62 static bool g_showIconic = FALSE;
  63 static wxSize g_initialSize = wxDefaultSize;
  64
  65 // This is required for wxFocusEvent::SetWindow(). It will only
  66 // work for focus events which we provoke ourselves (by calling
  67 // SetFocus()). It will not work for those events, which X11
  68 // generates itself.
  69 static wxWindow *g_nextFocus = NULL;
  70 static wxWindow *g_prevFocus = NULL;
  71
  72 //------------------------------------------------------------------------
  73 //   X11 error handling
  74 //------------------------------------------------------------------------
  75
  76 #ifdef __WXDEBUG__
  77 typedef int (*XErrorHandlerFunc)(Display *, XErrorEvent *);
  78
  79 XErrorHandlerFunc gs_pfnXErrorHandler = 0;
  80
  81 static int wxXErrorHandler(Display *dpy, XErrorEvent *xevent)
  82 {
  83     // just forward to the default handler for now
  84     if (gs_pfnXErrorHandler)
  85         return gs_pfnXErrorHandler(dpy, xevent);
  86     else
  87         return 0;
  88 }
  89 #endif // __WXDEBUG__
  90
  91 //------------------------------------------------------------------------
  92 //   wxApp
  93 //------------------------------------------------------------------------
  94
  95 long wxApp::sm_lastMessageTime = 0;
  96 WXDisplay *wxApp::ms_display = NULL;
  97
  98 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
  99
 100 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 101     EVT_IDLE(wxApp::OnIdle)
 102 END_EVENT_TABLE()
 103
 104 bool wxApp::Initialize()
 105 {
 106     wxClassInfo::InitializeClasses();
 107
 108     // GL: I'm annoyed ... I don't know where to put this and I don't want to
 109     // create a module for that as it's part of the core.
 110 #if wxUSE_THREADS
 111     wxPendingEventsLocker = new wxCriticalSection();
 112 #endif
 113
 114     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
 115     wxTheColourDatabase->Initialize();
 116
 117     wxInitializeStockLists();
 118     wxInitializeStockObjects();
 119
 120 #if wxUSE_WX_RESOURCES
 121     wxInitializeResourceSystem();
 122 #endif
 123
 124     wxWidgetHashTable = new wxHashTable(wxKEY_INTEGER);
 125     wxClientWidgetHashTable = new wxHashTable(wxKEY_INTEGER);
 126
 127     wxModule::RegisterModules();
 128     if (!wxModule::InitializeModules()) return FALSE;
 129
 130     return TRUE;
 131 }
 132
 133 void wxApp::CleanUp()
 134 {
 135     if (g_newArgv)
 136         delete[] g_newArgv;
 137     g_newArgv = NULL;
 138
 139     delete wxWidgetHashTable;
 140     wxWidgetHashTable = NULL;
 141     delete wxClientWidgetHashTable;
 142     wxClientWidgetHashTable = NULL;
 143
 144     wxModule::CleanUpModules();
 145
 146 #if wxUSE_WX_RESOURCES
 147     wxCleanUpResourceSystem();
 148 #endif
 149
 150     delete wxTheColourDatabase;
 151     wxTheColourDatabase = NULL;
 152
 153     wxDeleteStockObjects();
 154
 155     wxDeleteStockLists();
 156
 157     delete wxTheApp;
 158     wxTheApp = NULL;
 159
 160     wxClassInfo::CleanUpClasses();
 161
 162 #if wxUSE_THREADS
 163     delete wxPendingEvents;
 164     delete wxPendingEventsLocker;
 165 #endif
 166
 167 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 168     // At this point we want to check if there are any memory
 169     // blocks that aren't part of the wxDebugContext itself,
 170     // as a special case. Then when dumping we need to ignore
 171     // wxDebugContext, too.
 172     if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
 173     {
 174         wxLogDebug("There were memory leaks.");
 175         wxDebugContext::Dump();
 176         wxDebugContext::PrintStatistics();
 177     }
 178 #endif
 179
 180     // do it as the very last thing because everything else can log messages
 181     wxLog::DontCreateOnDemand();
 182     // do it as the very last thing because everything else can log messages
 183     delete wxLog::SetActiveTarget(NULL);
 184 }
 185
 186 // NB: argc and argv may be changed here, pass by reference!
 187 int wxEntryStart( int& argc, char *argv[] )
 188 {
 189 #ifdef __WXDEBUG__
 190 #if !wxUSE_NANOX
 191     // install the X error handler
 192     gs_pfnXErrorHandler = XSetErrorHandler( wxXErrorHandler );
 193 #endif
 194 #endif // __WXDEBUG__
 195
 196     wxString displayName;
 197     bool syncDisplay = FALSE;
 198
 199     // Parse the arguments.
 200     // We can't use wxCmdLineParser or OnInitCmdLine and friends because
 201     // we have to create the Display earlier. If we can find a way to
 202     // use the wxAppBase API then I'll be quite happy to change it.
 203     g_newArgv = new wxChar*[argc];
 204     g_newArgc = 0;
 205     int i;
 206     for (i = 0; i < argc; i++)
 207     {
 208         wxString arg(argv[i]);
 209         if (arg == wxT("-display"))
 210         {
 211             if (i < (argc - 1))
 212             {
 213                 i ++;
 214                 displayName = argv[i];
 215                 continue;
 216             }
 217         }
 218         else if (arg == wxT("-geometry"))
 219         {
 220             if (i < (argc - 1))
 221             {
 222                 i ++;
 223                 wxString windowGeometry = argv[i];
 224                 int w, h;
 225                 if (wxSscanf(windowGeometry.c_str(), _T("%dx%d"), &w, &h) != 2)
 226                 {
 227                     wxLogError(_("Invalid geometry specification '%s'"), windowGeometry.c_str());
 228                 }
 229                 else
 230                 {
 231                     g_initialSize = wxSize(w, h);
 232                 }
 233                 continue;
 234             }
 235         }
 236         else if (arg == wxT("-sync"))
 237         {
 238             syncDisplay = TRUE;
 239             continue;
 240         }
 241         else if (arg == wxT("-iconic"))
 242         {
 243             g_showIconic = TRUE;
 244
 245             continue;
 246         }
 247
 248         // Not eaten by wxWindows, so pass through
 249         g_newArgv[g_newArgc] = argv[i];
 250         g_newArgc ++;
 251     }
 252
 253     Display* xdisplay = NULL;
 254     if (displayName.IsEmpty())
 255         xdisplay = XOpenDisplay(NULL);
 256     else
 257         xdisplay = XOpenDisplay((char*) displayName.c_str());
 258
 259     if (!xdisplay)
 260     {
 261         wxLogError( _("wxWindows could not open display. Exiting.") );
 262         return -1;
 263     }
 264
 265     if (syncDisplay)
 266     {
 267         XSynchronize(xdisplay, True);
 268     }
 269
 270     wxApp::ms_display = (WXDisplay*) xdisplay;
 271
 272     XSelectInput( xdisplay, XDefaultRootWindow(xdisplay), PropertyChangeMask);
 273
 274     wxSetDetectableAutoRepeat( TRUE );
 275
 276     if (!wxApp::Initialize())
 277         return -1;
 278
 279     return 0;
 280 }
 281
 282 int wxEntryInitGui()
 283 {
 284     int retValue = 0;
 285
 286     if ( !wxTheApp->OnInitGui() )
 287         retValue = -1;
 288
 289     return retValue;
 290 }
 291
 292
 293 int wxEntry( int argc, char *argv[] )
 294 {
 295 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 296     // This seems to be necessary since there are 'rogue'
 297     // objects present at this point (perhaps global objects?)
 298     // Setting a checkpoint will ignore them as far as the
 299     // memory checking facility is concerned.
 300     // Of course you may argue that memory allocated in globals should be
 301     // checked, but this is a reasonable compromise.
 302     wxDebugContext::SetCheckpoint();
 303 #endif
 304     int err = wxEntryStart(argc, argv);
 305     if (err)
 306         return err;
 307
 308     if (!wxTheApp)
 309     {
 310         if (!wxApp::GetInitializerFunction())
 311         {
 312             printf( "wxWindows error: No initializer - use IMPLEMENT_APP macro.\n" );
 313             return 0;
 314         };
 315
 316         wxTheApp = (wxApp*) (* wxApp::GetInitializerFunction()) ();
 317     };
 318
 319     if (!wxTheApp)
 320     {
 321         printf( "wxWindows error: wxTheApp == NULL\n" );
 322         return 0;
 323     };
 324
 325     wxTheApp->SetClassName(wxFileNameFromPath(argv[0]));
 326     wxTheApp->SetAppName(wxFileNameFromPath(argv[0]));
 327
 328     // The command line may have been changed
 329     // by stripping out -display etc.
 330     if (g_newArgc > 0)
 331     {
 332         wxTheApp->argc = g_newArgc;
 333         wxTheApp->argv = g_newArgv;
 334     }
 335     else
 336     {
 337         wxTheApp->argc = argc;
 338         wxTheApp->argv = argv;
 339     }
 340     wxTheApp->m_showIconic = g_showIconic;
 341     wxTheApp->m_initialSize = g_initialSize;
 342
 343     int retValue;
 344     retValue = wxEntryInitGui();
 345
 346     // Here frames insert themselves automatically into wxTopLevelWindows by
 347     // getting created in OnInit().
 348     if ( retValue == 0 )
 349     {
 350         if ( !wxTheApp->OnInit() )
 351             retValue = -1;
 352     }
 353
 354     if ( retValue == 0 )
 355     {
 356         if (wxTheApp->Initialized()) retValue = wxTheApp->OnRun();
 357     }
 358
 359     // flush the logged messages if any
 360     wxLog *pLog = wxLog::GetActiveTarget();
 361     if ( pLog != NULL && pLog->HasPendingMessages() )
 362         pLog->Flush();
 363
 364     delete wxLog::SetActiveTarget(new wxLogStderr); // So dialog boxes aren't used
 365     // for further messages
 366
 367     if (wxTheApp->GetTopWindow())
 368     {
 369         delete wxTheApp->GetTopWindow();
 370         wxTheApp->SetTopWindow(NULL);
 371     }
 372
 373     wxTheApp->DeletePendingObjects();
 374
 375     wxTheApp->OnExit();
 376
 377     wxApp::CleanUp();
 378
 379     return retValue;
 380 };
 381
 382 // Static member initialization
 383 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 384
 385 wxApp::wxApp()
 386 {
 387     m_topWindow = NULL;
 388     wxTheApp = this;
 389     m_className = "";
 390     m_wantDebugOutput = TRUE ;
 391     m_appName = "";
 392     argc = 0;
 393     argv = NULL;
 394     m_exitOnFrameDelete = TRUE;
 395     m_mainColormap = (WXColormap) NULL;
 396     m_topLevelWidget = (WXWindow) NULL;
 397     m_maxRequestSize = 0;
 398     m_mainLoop = NULL;
 399     m_showIconic = FALSE;
 400     m_initialSize = wxDefaultSize;
 401
 402     m_visualColormap = NULL;
 403     m_colorCube = NULL;
 404 }
 405
 406 wxApp::~wxApp()
 407 {
 408     if (m_colorCube)
 409         free( m_colorCube );
 410
 411     if (m_visualColormap)
 412         delete [] (XColor*)m_visualColormap;
 413 }
 414
 415 bool wxApp::Initialized()
 416 {
 417     if (GetTopWindow())
 418         return TRUE;
 419     else
 420         return FALSE;
 421 }
 422
 423 int wxApp::MainLoop()
 424 {
 425     int rt;
 426     m_mainLoop = new wxEventLoop;
 427
 428     rt = m_mainLoop->Run();
 429
 430     delete m_mainLoop;
 431     m_mainLoop = NULL;
 432     return rt;
 433 }
 434
 435 #if !wxUSE_NANOX
 436 //-----------------------------------------------------------------------
 437 // X11 predicate function for exposure compression
 438 //-----------------------------------------------------------------------
 439
 440 struct wxExposeInfo
 441 {
 442     Window window;
 443     Bool found_non_matching;
 444 };
 445
 446 static Bool expose_predicate (Display *display, XEvent *xevent, XPointer arg)
 447 {
 448     wxExposeInfo *info = (wxExposeInfo*) arg;
 449
 450     if (info->found_non_matching)
 451        return FALSE;
 452
 453     if (xevent->xany.type != Expose)
 454     {
 455         info->found_non_matching = TRUE;
 456         return FALSE;
 457     }
 458
 459     if (xevent->xexpose.window != info->window)
 460     {
 461         info->found_non_matching = TRUE;
 462         return FALSE;
 463     }
 464
 465     return TRUE;
 466 }
 467 #endif
 468     // wxUSE_NANOX
 469
 470 //-----------------------------------------------------------------------
 471 // Processes an X event, returning TRUE if the event was processed.
 472 //-----------------------------------------------------------------------
 473
 474 bool wxApp::ProcessXEvent(WXEvent* _event)
 475 {
 476     XEvent* event = (XEvent*) _event;
 477
 478     wxWindow* win = NULL;
 479     Window window = XEventGetWindow(event);
 480 #if 0
 481     Window actualWindow = window;
 482 #endif
 483
 484     // Find the first wxWindow that corresponds to this event window
 485     // Because we're receiving events after a window
 486     // has been destroyed, assume a 1:1 match between
 487     // Window and wxWindow, so if it's not in the table,
 488     // it must have been destroyed.
 489
 490     win = wxGetWindowFromTable(window);
 491     if (!win)
 492     {
 493 #if wxUSE_TWO_WINDOWS
 494         win = wxGetClientWindowFromTable(window);
 495         if (!win)
 496 #endif
 497             return FALSE;
 498     }
 499
 500 #ifdef __WXDEBUG__
 501     wxString windowClass = win->GetClassInfo()->GetClassName();
 502 #endif
 503
 504     switch (event->type)
 505     {
 506         case Expose:
 507         {
 508 #if wxUSE_TWO_WINDOWS
 509             if (event->xexpose.window != (Window)win->GetClientWindow())
 510             {
 511                 XEvent tmp_event;
 512                 wxExposeInfo info;
 513                 info.window = event->xexpose.window;
 514                 info.found_non_matching = FALSE;
 515                 while (XCheckIfEvent( wxGlobalDisplay(), &tmp_event, expose_predicate, (XPointer) &info ))
 516                 {
 517                     // Don't worry about optimizing redrawing the border etc.
 518                 }
 519                 win->NeedUpdateNcAreaInIdle();
 520             }
 521             else
 522 #endif
 523             {
 524                 win->GetUpdateRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
 525                                               XExposeEventGetWidth(event), XExposeEventGetHeight(event));
 526                 win->GetClearRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
 527                                          XExposeEventGetWidth(event), XExposeEventGetHeight(event));
 528
 529 #if !wxUSE_NANOX
 530                 XEvent tmp_event;
 531                 wxExposeInfo info;
 532                 info.window = event->xexpose.window;
 533                 info.found_non_matching = FALSE;
 534                 while (XCheckIfEvent( wxGlobalDisplay(), &tmp_event, expose_predicate, (XPointer) &info ))
 535                 {
 536                     win->GetUpdateRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
 537                                                   tmp_event.xexpose.width, tmp_event.xexpose.height );
 538
 539                     win->GetClearRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
 540                                                  tmp_event.xexpose.width, tmp_event.xexpose.height );
 541                 }
 542 #endif
 543
 544                 // This simplifies the expose and clear areas to simple
 545                 // rectangles.
 546                 win->GetUpdateRegion() = win->GetUpdateRegion().GetBox();
 547                 win->GetClearRegion() = win->GetClearRegion().GetBox();
 548
 549                 // If we only have one X11 window, always indicate
 550                 // that borders might have to be redrawn.
 551                 if (win->GetMainWindow() == win->GetClientWindow())
 552                     win->NeedUpdateNcAreaInIdle();
 553
 554                 // Only erase background, paint in idle time.
 555                 win->SendEraseEvents();
 556                 // win->Update();
 557             }
 558
 559             return TRUE;
 560         }
 561
 562 #if !wxUSE_NANOX
 563         case GraphicsExpose:
 564         {
 565             printf( "GraphicExpose event\n" );
 566
 567             // wxLogDebug( "GraphicsExpose from %s", win->GetName().c_str(),
 568             //                              event->xgraphicsexpose.x, event->xgraphicsexpose.y,
 569             //                              event->xgraphicsexpose.width, event->xgraphicsexpose.height);
 570
 571             win->GetUpdateRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
 572                                           event->xgraphicsexpose.width, event->xgraphicsexpose.height);
 573
 574             win->GetClearRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
 575                                          event->xgraphicsexpose.width, event->xgraphicsexpose.height);
 576
 577             if (event->xgraphicsexpose.count == 0)
 578             {
 579                 // Only erase background, paint in idle time.
 580                 win->SendEraseEvents();
 581                 // win->Update();
 582             }
 583
 584             return TRUE;
 585         }
 586 #endif
 587
 588         case KeyPress:
 589         {
 590             if (!win->IsEnabled())
 591                 return FALSE;
 592
 593             wxKeyEvent keyEvent(wxEVT_KEY_DOWN);
 594             wxTranslateKeyEvent(keyEvent, win, window, event);
 595
 596             // wxLogDebug( "OnKey from %s", win->GetName().c_str() );
 597
 598             // We didn't process wxEVT_KEY_DOWN, so send wxEVT_CHAR
 599             if (win->GetEventHandler()->ProcessEvent( keyEvent ))
 600                 return TRUE;
 601
 602             keyEvent.SetEventType(wxEVT_CHAR);
 603             if (win->GetEventHandler()->ProcessEvent( keyEvent ))
 604                 return TRUE;
 605
 606             if ( (keyEvent.m_keyCode == WXK_TAB) &&
 607                  win->GetParent() && (win->GetParent()->HasFlag( wxTAB_TRAVERSAL)) )
 608             {
 609                 wxNavigationKeyEvent new_event;
 610                 new_event.SetEventObject( win->GetParent() );
 611                 /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 612                 new_event.SetDirection( (keyEvent.m_keyCode == WXK_TAB) );
 613                 /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 614                 new_event.SetWindowChange( keyEvent.ControlDown() );
 615                 new_event.SetCurrentFocus( win );
 616                 return win->GetParent()->GetEventHandler()->ProcessEvent( new_event );
 617             }
 618
 619             return FALSE;
 620         }
 621         case KeyRelease:
 622         {
 623             if (!win->IsEnabled())
 624                 return FALSE;
 625
 626             wxKeyEvent keyEvent(wxEVT_KEY_UP);
 627             wxTranslateKeyEvent(keyEvent, win, window, event);
 628
 629             return win->GetEventHandler()->ProcessEvent( keyEvent );
 630         }
 631         case ConfigureNotify:
 632         {
 633 #if wxUSE_NANOX
 634             if (event->update.utype == GR_UPDATE_SIZE)
 635 #endif
 636             {
 637                 if (win->IsTopLevel())
 638                 {
 639                     wxTopLevelWindow *tlw = (wxTopLevelWindow*) win;
 640                     tlw->SetConfigureGeometry( XConfigureEventGetX(event), XConfigureEventGetY(event),
 641                         XConfigureEventGetWidth(event), XConfigureEventGetHeight(event) );
 642                 }
 643
 644                 if (win->IsTopLevel() && win->IsShown())
 645                 {
 646                     wxTopLevelWindowX11 *tlw = (wxTopLevelWindowX11 *) win;
 647                     tlw->SetNeedResizeInIdle();
 648                 }
 649                 else
 650                 {
 651                     wxSizeEvent sizeEvent( wxSize(XConfigureEventGetWidth(event), XConfigureEventGetHeight(event)), win->GetId() );
 652                     sizeEvent.SetEventObject( win );
 653
 654                     return win->GetEventHandler()->ProcessEvent( sizeEvent );
 655                 }
 656             }
 657             return FALSE;
 658             break;
 659         }
 660 #if !wxUSE_NANOX
 661         case PropertyNotify:
 662         {
 663             //wxLogDebug("PropertyNotify: %s", windowClass.c_str());
 664             return HandlePropertyChange(_event);
 665         }
 666         case ClientMessage:
 667         {
 668             if (!win->IsEnabled())
 669                 return FALSE;
 670
 671             Atom wm_delete_window = XInternAtom(wxGlobalDisplay(), "WM_DELETE_WINDOW", True);
 672             Atom wm_protocols = XInternAtom(wxGlobalDisplay(), "WM_PROTOCOLS", True);
 673
 674             if (event->xclient.message_type == wm_protocols)
 675             {
 676                 if ((Atom) (event->xclient.data.l[0]) == wm_delete_window)
 677                 {
 678                     win->Close(FALSE);
 679                     return TRUE;
 680                 }
 681             }
 682             return FALSE;
 683         }
 684 #if 0
 685         case DestroyNotify:
 686         {
 687             printf( "destroy from %s\n", win->GetName().c_str() );
 688             break;
 689         }
 690         case CreateNotify:
 691         {
 692             printf( "create from %s\n", win->GetName().c_str() );
 693             break;
 694         }
 695         case MapRequest:
 696         {
 697             printf( "map request from %s\n", win->GetName().c_str() );
 698             break;
 699         }
 700         case ResizeRequest:
 701         {
 702             printf( "resize request from %s\n", win->GetName().c_str() );
 703
 704             Display *disp = (Display*) wxGetDisplay();
 705             XEvent report;
 706
 707             //  to avoid flicker
 708             report = * event;
 709             while( XCheckTypedWindowEvent (disp, actualWindow, ResizeRequest, &report));
 710
 711             wxSize sz = win->GetSize();
 712             wxSizeEvent sizeEvent(sz, win->GetId());
 713             sizeEvent.SetEventObject(win);
 714
 715             return win->GetEventHandler()->ProcessEvent( sizeEvent );
 716         }
 717 #endif
 718 #endif
 719 #if wxUSE_NANOX
 720         case GR_EVENT_TYPE_CLOSE_REQ:
 721         {
 722             if (win)
 723             {
 724                 win->Close(FALSE);
 725                 return TRUE;
 726             }
 727             return FALSE;
 728             break;
 729         }
 730 #endif
 731         case EnterNotify:
 732         case LeaveNotify:
 733         case ButtonPress:
 734         case ButtonRelease:
 735         case MotionNotify:
 736         {
 737             if (!win->IsEnabled())
 738                 return FALSE;
 739
 740             // Here we check if the top level window is
 741             // disabled, which is one aspect of modality.
 742             wxWindow *tlw = win;
 743             while (tlw && !tlw->IsTopLevel())
 744                 tlw = tlw->GetParent();
 745             if (tlw && !tlw->IsEnabled())
 746                 return FALSE;
 747
 748             if (event->type == ButtonPress)
 749             {
 750                 if ((win != wxWindow::FindFocus()) && win->AcceptsFocus())
 751                 {
 752                     // This might actually be done in wxWindow::SetFocus()
 753                     // and not here. TODO.
 754                     g_prevFocus = wxWindow::FindFocus();
 755                     g_nextFocus = win;
 756
 757                     win->SetFocus();
 758                 }
 759             }
 760
 761 #if !wxUSE_NANOX
 762             if (event->type == LeaveNotify || event->type == EnterNotify)
 763             {
 764                 // Throw out NotifyGrab and NotifyUngrab
 765                 if (event->xcrossing.mode != NotifyNormal)
 766                     return FALSE;
 767             }
 768 #endif
 769             wxMouseEvent wxevent;
 770             wxTranslateMouseEvent(wxevent, win, window, event);
 771             return win->GetEventHandler()->ProcessEvent( wxevent );
 772         }
 773         case FocusIn:
 774             {
 775 #if !wxUSE_NANOX
 776                 if ((event->xfocus.detail != NotifyPointer) &&
 777                     (event->xfocus.mode == NotifyNormal))
 778 #endif
 779                 {
 780                     // wxLogDebug( "FocusIn from %s of type %s", win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 781
 782                     wxFocusEvent focusEvent(wxEVT_SET_FOCUS, win->GetId());
 783                     focusEvent.SetEventObject(win);
 784                     focusEvent.SetWindow( g_prevFocus );
 785                     g_prevFocus = NULL;
 786
 787                     return win->GetEventHandler()->ProcessEvent(focusEvent);
 788                 }
 789                 return FALSE;
 790                 break;
 791             }
 792         case FocusOut:
 793             {
 794 #if !wxUSE_NANOX
 795                 if ((event->xfocus.detail != NotifyPointer) &&
 796                     (event->xfocus.mode == NotifyNormal))
 797 #endif
 798                 {
 799                     // wxLogDebug( "FocusOut from %s of type %s", win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
 800
 801                     wxFocusEvent focusEvent(wxEVT_KILL_FOCUS, win->GetId());
 802                     focusEvent.SetEventObject(win);
 803                     focusEvent.SetWindow( g_nextFocus );
 804                     g_nextFocus = NULL;
 805                     return win->GetEventHandler()->ProcessEvent(focusEvent);
 806                 }
 807                 return FALSE;
 808                 break;
 809             }
 810         default:
 811         {
 812 #ifdef __WXDEBUG__
 813             //wxString eventName = wxGetXEventName(XEvent& event);
 814             //wxLogDebug(wxT("Event %s not handled"), eventName.c_str());
 815 #endif
 816             return FALSE;
 817             break;
 818         }
 819     }
 820     return FALSE;
 821 }
 822
 823 // Returns TRUE if more time is needed.
 824 // Note that this duplicates wxEventLoopImpl::SendIdleEvent
 825 // but ProcessIdle may be needed by apps, so is kept.
 826 bool wxApp::ProcessIdle()
 827 {
 828     wxIdleEvent event;
 829     event.SetEventObject(this);
 830     ProcessEvent(event);
 831
 832     return event.MoreRequested();
 833 }
 834
 835 void wxApp::ExitMainLoop()
 836 {
 837     if (m_mainLoop)
 838         m_mainLoop->Exit(0);
 839 }
 840
 841 // Is a message/event pending?
 842 bool wxApp::Pending()
 843 {
 844     return wxEventLoop::GetActive()->Pending();
 845 }
 846
 847 // Dispatch a message.
 848 void wxApp::Dispatch()
 849 {
 850     wxEventLoop::GetActive()->Dispatch();
 851 }
 852
 853 // This should be redefined in a derived class for
 854 // handling property change events for XAtom IPC.
 855 bool wxApp::HandlePropertyChange(WXEvent *event)
 856 {
 857     // by default do nothing special
 858     // TODO: what to do for X11
 859     // XtDispatchEvent((XEvent*) event);
 860     return FALSE;
 861 }
 862
 863 void wxApp::OnIdle(wxIdleEvent& event)
 864 {
 865     static bool s_inOnIdle = FALSE;
 866
 867     // Avoid recursion (via ProcessEvent default case)
 868     if (s_inOnIdle)
 869         return;
 870
 871     s_inOnIdle = TRUE;
 872
 873     // Resend in the main thread events which have been prepared in other
 874     // threads
 875     ProcessPendingEvents();
 876
 877     // 'Garbage' collection of windows deleted with Close()
 878     DeletePendingObjects();
 879
 880     // Send OnIdle events to all windows
 881     bool needMore = SendIdleEvents();
 882
 883     if (needMore)
 884         event.RequestMore(TRUE);
 885
 886     s_inOnIdle = FALSE;
 887 }
 888
 889 void wxWakeUpIdle()
 890 {
 891     // **** please implement me! ****
 892     // Wake up the idle handler processor, even if it is in another thread...
 893 }
 894
 895
 896 // Send idle event to all top-level windows
 897 bool wxApp::SendIdleEvents()
 898 {
 899     bool needMore = FALSE;
 900
 901     wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
 902     while (node)
 903     {
 904         wxWindow* win = node->GetData();
 905         if (SendIdleEvents(win))
 906             needMore = TRUE;
 907         node = node->GetNext();
 908     }
 909
 910     return needMore;
 911 }
 912
 913 // Send idle event to window and all subwindows
 914 bool wxApp::SendIdleEvents(wxWindow* win)
 915 {
 916     bool needMore = FALSE;
 917
 918     wxIdleEvent event;
 919     event.SetEventObject(win);
 920
 921     win->GetEventHandler()->ProcessEvent(event);
 922
 923     win->OnInternalIdle();
 924
 925     if (event.MoreRequested())
 926         needMore = TRUE;
 927
 928     wxNode* node = win->GetChildren().First();
 929     while (node)
 930     {
 931         wxWindow* win = (wxWindow*) node->Data();
 932         if (SendIdleEvents(win))
 933             needMore = TRUE;
 934
 935         node = node->Next();
 936     }
 937
 938     return needMore;
 939 }
 940
 941 void wxApp::DeletePendingObjects()
 942 {
 943     wxNode *node = wxPendingDelete.First();
 944     while (node)
 945     {
 946         wxObject *obj = (wxObject *)node->Data();
 947
 948         delete obj;
 949
 950         if (wxPendingDelete.Member(obj))
 951             delete node;
 952
 953         // Deleting one object may have deleted other pending
 954         // objects, so start from beginning of list again.
 955         node = wxPendingDelete.First();
 956     }
 957 }
 958
 959 static void wxCalcPrecAndShift( unsigned long mask, int *shift, int *prec )
 960 {
 961   *shift = 0;
 962   *prec = 0;
 963
 964   while (!(mask & 0x1))
 965     {
 966       (*shift)++;
 967       mask >>= 1;
 968     }
 969
 970   while (mask & 0x1)
 971     {
 972       (*prec)++;
 973       mask >>= 1;
 974     }
 975 }
 976
 977 // Create display, and other initialization
 978 bool wxApp::OnInitGui()
 979 {
 980     // Eventually this line will be removed, but for
 981     // now we don't want to try popping up a dialog
 982     // for error messages.
 983     delete wxLog::SetActiveTarget(new wxLogStderr);
 984
 985     if (!wxAppBase::OnInitGui())
 986         return FALSE;
 987
 988     GetMainColormap( wxApp::GetDisplay() );
 989
 990     m_maxRequestSize = XMaxRequestSize( (Display*) wxApp::GetDisplay() );
 991
 992     // Get info about the current visual. It is enough
 993     // to do this once here unless we support different
 994     // visuals, displays and screens. Given that wxX11
 995     // mostly for embedded things, that is no real
 996     // limitation.
 997     Display *xdisplay = (Display*) wxApp::GetDisplay();
 998     int xscreen = DefaultScreen(xdisplay);
 999     Visual* xvisual = DefaultVisual(xdisplay,xscreen);
1000     int xdepth = DefaultDepth(xdisplay, xscreen);
1001
1002     XVisualInfo vinfo_template;
1003     vinfo_template.visual = xvisual;
1004     vinfo_template.visualid = XVisualIDFromVisual( xvisual );
1005     vinfo_template.depth = xdepth;
1006
1007     int nitem = 0;
1008     XVisualInfo *vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
1009     wxASSERT_MSG( vi, wxT("No visual info") );
1010
1011     m_visualType = vi->visual->c_class;
1012     m_visualScreen = vi->screen;
1013
1014     m_visualRedMask = vi->red_mask;
1015     m_visualGreenMask = vi->green_mask;
1016     m_visualBlueMask = vi->blue_mask;
1017
1018     if (m_visualType != GrayScale && m_visualType != PseudoColor)
1019     {
1020         wxCalcPrecAndShift( m_visualRedMask, &m_visualRedShift, &m_visualRedPrec );
1021         wxCalcPrecAndShift( m_visualGreenMask, &m_visualGreenShift, &m_visualGreenPrec );
1022         wxCalcPrecAndShift( m_visualBlueMask, &m_visualBlueShift, &m_visualBluePrec );
1023     }
1024
1025     m_visualDepth = xdepth;
1026     if (xdepth == 16)
1027         xdepth = m_visualRedPrec + m_visualGreenPrec + m_visualBluePrec;
1028
1029     m_visualColormapSize = vi->colormap_size;
1030
1031     XFree( vi );
1032
1033     if (m_visualDepth > 8)
1034         return TRUE;
1035
1036     m_visualColormap = new XColor[m_visualColormapSize];
1037     XColor* colors = (XColor*) m_visualColormap;
1038
1039     for (int i = 0; i < m_visualColormapSize; i++)
1040             colors[i].pixel = i;
1041
1042     XQueryColors( xdisplay, DefaultColormap(xdisplay,xscreen), colors, m_visualColormapSize );
1043
1044     m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
1045
1046     for (int r = 0; r < 32; r++)
1047     {
1048         for (int g = 0; g < 32; g++)
1049         {
1050             for (int b = 0; b < 32; b++)
1051             {
1052                 int rr = (r << 3) | (r >> 2);
1053                 int gg = (g << 3) | (g >> 2);
1054                 int bb = (b << 3) | (b >> 2);
1055
1056                 int index = -1;
1057
1058                 if (colors)
1059                 {
1060                     int max = 3 * 65536;
1061
1062                     for (int i = 0; i < m_visualColormapSize; i++)
1063                     {
1064                         int rdiff = ((rr << 8) - colors[i].red);
1065                         int gdiff = ((gg << 8) - colors[i].green);
1066                         int bdiff = ((bb << 8) - colors[i].blue);
1067                         int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
1068                         if (sum < max)
1069                         {
1070                             index = i; max = sum;
1071                         }
1072                     }
1073                 }
1074                 else
1075                 {
1076                     // assume 8-bit true or static colors. this really exists
1077                     index = (r >> (5 - m_visualRedPrec)) << m_visualRedShift;
1078                     index |= (g >> (5 - m_visualGreenPrec)) << m_visualGreenShift;
1079                     index |= (b >> (5 - m_visualBluePrec)) << m_visualBlueShift;
1080                 }
1081                 m_colorCube[ (r*1024) + (g*32) + b ] = index;
1082             }
1083         }
1084     }
1085
1086     return TRUE;
1087 }
1088
1089 WXColormap wxApp::GetMainColormap(WXDisplay* display)
1090 {
1091     if (!display) /* Must be called first with non-NULL display */
1092         return m_mainColormap;
1093
1094     int defaultScreen = DefaultScreen((Display*) display);
1095     Screen* screen = XScreenOfDisplay((Display*) display, defaultScreen);
1096
1097     Colormap c = DefaultColormapOfScreen(screen);
1098
1099     if (!m_mainColormap)
1100         m_mainColormap = (WXColormap) c;
1101
1102     return (WXColormap) c;
1103 }
1104
1105 Window wxGetWindowParent(Window window)
1106 {
1107     wxASSERT_MSG( window, "invalid window" );
1108
1109     return (Window) 0;
1110
1111     Window parent, root = 0;
1112 #if wxUSE_NANOX
1113     int noChildren = 0;
1114 #else
1115     unsigned int noChildren = 0;
1116 #endif
1117     Window* children = NULL;
1118
1119     // #define XQueryTree(d,w,r,p,c,nc)     GrQueryTree(w,p,c,nc)
1120     int res = 1;
1121 #if !wxUSE_NANOX
1122     res =
1123 #endif
1124         XQueryTree((Display*) wxGetDisplay(), window, & root, & parent,
1125              & children, & noChildren);
1126     if (children)
1127         XFree(children);
1128     if (res)
1129         return parent;
1130     else
1131         return (Window) 0;
1132 }
1133
1134 void wxExit()
1135 {
1136     int retValue = 0;
1137     if (wxTheApp)
1138         retValue = wxTheApp->OnExit();
1139
1140     wxApp::CleanUp();
1141     /*
1142     * Exit in some platform-specific way. Not recommended that the app calls this:
1143     * only for emergencies.
1144     */
1145     exit(retValue);
1146 }
1147
1148 // Yield to other processes
1149
1150 bool wxApp::Yield(bool onlyIfNeeded)
1151 {
1152     bool s_inYield = FALSE;
1153
1154     if ( s_inYield )
1155     {
1156         if ( !onlyIfNeeded )
1157         {
1158             wxFAIL_MSG( wxT("wxYield called recursively" ) );
1159         }
1160
1161         return FALSE;
1162     }
1163
1164     s_inYield = TRUE;
1165
1166     // Make sure we have an event loop object,
1167     // or Pending/Dispatch will fail
1168     wxEventLoop* eventLoop = wxEventLoop::GetActive();
1169     wxEventLoop* newEventLoop = NULL;
1170     if (!eventLoop)
1171     {
1172         newEventLoop = new wxEventLoop;
1173         wxEventLoop::SetActive(newEventLoop);
1174     }
1175
1176     while (wxTheApp && wxTheApp->Pending())
1177         wxTheApp->Dispatch();
1178
1179 #if wxUSE_TIMER
1180     wxTimer::NotifyTimers();
1181 #endif
1182     ProcessIdle();
1183
1184     if (newEventLoop)
1185     {
1186         wxEventLoop::SetActive(NULL);
1187         delete newEventLoop;
1188     }
1189
1190     s_inYield = FALSE;
1191
1192     return TRUE;
1193 }
1194
1195 void wxApp::OnAssert(const wxChar *file, int line, const wxChar *msg)
1196 {
1197     // While the GUI isn't working that well, just print out the
1198     // message.
1199 #if 0
1200     wxAppBase::OnAssert(file, line, msg);
1201 #else
1202     wxString msg2;
1203     msg2.Printf("At file %s:%d: %s", file, line, msg);
1204     wxLogDebug(msg2);
1205 #endif
1206 }
1207