src/gtk/app.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        app.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Julian Smart
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11     #pragma implementation "app.h"
  12 #endif
  13
  14 #ifdef __VMS
  15 #include <vms_jackets.h>
  16 #endif
  17
  18 #include "wx/app.h"
  19 #include "wx/gdicmn.h"
  20 #include "wx/utils.h"
  21 #include "wx/intl.h"
  22 #include "wx/log.h"
  23 #include "wx/memory.h"
  24 #include "wx/font.h"
  25 #include "wx/settings.h"
  26 #include "wx/dialog.h"
  27 #include "wx/msgdlg.h"
  28
  29 #if wxUSE_WX_RESOURCES
  30     #include "wx/resource.h"
  31 #endif
  32
  33 #include "wx/module.h"
  34 #include "wx/image.h"
  35
  36 #ifdef __WXUNIVERSAL__
  37     #include "wx/univ/theme.h"
  38     #include "wx/univ/renderer.h"
  39 #endif
  40
  41 #if wxUSE_THREADS
  42     #include "wx/thread.h"
  43 #endif
  44
  45 #include <unistd.h>
  46 #if defined(__DARWIN__)
  47 // FIXME: select must be used instead of poll (GD)
  48 #elif defined(__VMS)
  49 # include <poll.h>
  50 #else
  51 # include <sys/poll.h>
  52 #endif
  53 #include "wx/gtk/win_gtk.h"
  54
  55 #include <gtk/gtk.h>
  56
  57
  58 //-----------------------------------------------------------------------------
  59 // global data
  60 //-----------------------------------------------------------------------------
  61
  62 wxApp *wxTheApp = (wxApp *)  NULL;
  63 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
  64
  65 bool   g_mainThreadLocked = FALSE;
  66 gint   g_pendingTag = 0;
  67
  68 static GtkWidget *gs_RootWindow = (GtkWidget*) NULL;
  69
  70 //-----------------------------------------------------------------------------
  71 // idle system
  72 //-----------------------------------------------------------------------------
  73
  74 extern bool g_isIdle;
  75
  76 void wxapp_install_idle_handler();
  77
  78 //-----------------------------------------------------------------------------
  79 // wxExit
  80 //-----------------------------------------------------------------------------
  81
  82 void wxExit()
  83 {
  84     gtk_main_quit();
  85 }
  86
  87 //-----------------------------------------------------------------------------
  88 // wxYield
  89 //-----------------------------------------------------------------------------
  90
  91 // not static because used by textctrl.cpp
  92 //
  93 // MT-FIXME
  94 bool wxIsInsideYield = FALSE;
  95
  96 bool wxApp::Yield(bool onlyIfNeeded)
  97 {
  98     if ( wxIsInsideYield )
  99     {
 100         if ( !onlyIfNeeded )
 101         {
 102             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 103         }
 104
 105         return FALSE;
 106     }
 107
 108 #if wxUSE_THREADS
 109     if ( !wxThread::IsMain() )
 110     {
 111         // can't call gtk_main_iteration() from other threads like this
 112         return TRUE;
 113     }
 114 #endif // wxUSE_THREADS
 115
 116     wxIsInsideYield = TRUE;
 117
 118     if (!g_isIdle)
 119     {
 120         // We need to remove idle callbacks or the loop will
 121         // never finish.
 122         gtk_idle_remove( m_idleTag );
 123         m_idleTag = 0;
 124         g_isIdle = TRUE;
 125     }
 126
 127     // disable log flushing from here because a call to wxYield() shouldn't
 128     // normally result in message boxes popping up &c
 129     wxLog::Suspend();
 130
 131     while (gtk_events_pending())
 132         gtk_main_iteration();
 133
 134     // It's necessary to call ProcessIdle() to update the frames sizes which
 135     // might have been changed (it also will update other things set from
 136     // OnUpdateUI() which is a nice (and desired) side effect). But we
 137     // call ProcessIdle() only once since this is not meant for longish
 138     // background jobs (controlled by wxIdleEvent::RequestMore() and the
 139     // return value of Processidle().
 140     ProcessIdle();
 141
 142     // let the logs be flashed again
 143     wxLog::Resume();
 144
 145     wxIsInsideYield = FALSE;
 146
 147     return TRUE;
 148 }
 149
 150 //-----------------------------------------------------------------------------
 151 // wxWakeUpIdle
 152 //-----------------------------------------------------------------------------
 153
 154 void wxWakeUpIdle()
 155 {
 156 #if wxUSE_THREADS
 157     if (!wxThread::IsMain())
 158         wxMutexGuiEnter();
 159 #endif
 160
 161     if (g_isIdle)
 162         wxapp_install_idle_handler();
 163
 164 #if wxUSE_THREADS
 165     if (!wxThread::IsMain())
 166         wxMutexGuiLeave();
 167 #endif
 168 }
 169
 170 //-----------------------------------------------------------------------------
 171 // local functions
 172 //-----------------------------------------------------------------------------
 173
 174 // the callback functions must be extern "C" to comply with GTK+ declarations
 175 extern "C"
 176 {
 177
 178 static gint wxapp_pending_callback( gpointer WXUNUSED(data) )
 179 {
 180     if (!wxTheApp) return TRUE;
 181
 182     // When getting called from GDK's time-out handler
 183     // we are no longer within GDK's grab on the GUI
 184     // thread so we must lock it here ourselves.
 185     gdk_threads_enter();
 186
 187     // Sent idle event to all who request them.
 188     wxTheApp->ProcessPendingEvents();
 189
 190     g_pendingTag = 0;
 191
 192     // Flush the logged messages if any.
 193 #if wxUSE_LOG
 194     wxLog::FlushActive();
 195 #endif // wxUSE_LOG
 196
 197     // Release lock again
 198     gdk_threads_leave();
 199
 200     // Return FALSE to indicate that no more idle events are
 201     // to be sent (single shot instead of continuous stream)
 202     return FALSE;
 203 }
 204
 205 static gint wxapp_idle_callback( gpointer WXUNUSED(data) )
 206 {
 207     if (!wxTheApp)
 208         return TRUE;
 209
 210 #ifdef __WXDEBUG__
 211     // don't generate the idle events while the assert modal dialog is shown,
 212     // this completely confuses the apps which don't expect to be reentered
 213     // from some safely-looking functions
 214     if ( wxTheApp->IsInAssert() )
 215     {
 216         // But repaint the assertion message if necessary
 217         if (wxTopLevelWindows.GetCount() > 0)
 218         {
 219             wxWindow* win = (wxWindow*) wxTopLevelWindows.Last()->Data();
 220             if (win->IsKindOf(CLASSINFO(wxGenericMessageDialog)))
 221                 win->OnInternalIdle();
 222         }
 223         return TRUE;
 224     }
 225 #endif // __WXDEBUG__
 226
 227     // When getting called from GDK's time-out handler
 228     // we are no longer within GDK's grab on the GUI
 229     // thread so we must lock it here ourselves.
 230     gdk_threads_enter();
 231
 232     // Indicate that we are now in idle mode and event handlers
 233     // will have to reinstall the idle handler again.
 234     g_isIdle = TRUE;
 235     wxTheApp->m_idleTag = 0;
 236
 237     // Send idle event to all who request them as long as
 238     // no events have popped up in the event queue.
 239     while (wxTheApp->ProcessIdle() && (gtk_events_pending() == 0))
 240         ;
 241
 242     // Release lock again
 243     gdk_threads_leave();
 244
 245     // Return FALSE to indicate that no more idle events are
 246     // to be sent (single shot instead of continuous stream).
 247     return FALSE;
 248 }
 249
 250 #if wxUSE_THREADS
 251
 252 static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout )
 253 {
 254     gint res;
 255     gdk_threads_enter();
 256
 257     wxMutexGuiLeave();
 258     g_mainThreadLocked = TRUE;
 259
 260 #ifdef __DARWIN__
 261     // FIXME: poll is not available under Darwin/Mac OS X and this needs
 262     //        to be implemented using select instead (GD)
 263     //        what about other BSD derived systems?
 264     res = -1;
 265 #else
 266     res = poll( (struct pollfd*) ufds, nfds, timeout );
 267 #endif
 268
 269     wxMutexGuiEnter();
 270     g_mainThreadLocked = FALSE;
 271
 272     gdk_threads_leave();
 273
 274     return res;
 275 }
 276
 277 #endif // wxUSE_THREADS
 278
 279 } // extern "C"
 280
 281 void wxapp_install_idle_handler()
 282 {
 283     wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") );
 284
 285     g_isIdle = FALSE;
 286
 287     if (g_pendingTag == 0)
 288         g_pendingTag = gtk_idle_add_priority( 900, wxapp_pending_callback, (gpointer) NULL );
 289
 290     // This routine gets called by all event handlers
 291     // indicating that the idle is over. It may also
 292     // get called from other thread for sending events
 293     // to the main thread (and processing these in
 294     // idle time). Very low priority.
 295     wxTheApp->m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL );
 296 }
 297
 298 //-----------------------------------------------------------------------------
 299 // Access to the root window global
 300 //-----------------------------------------------------------------------------
 301
 302 GtkWidget* wxGetRootWindow()
 303 {
 304     if (gs_RootWindow == NULL)
 305     {
 306         gs_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
 307         gtk_widget_realize( gs_RootWindow );
 308     }
 309     return gs_RootWindow;
 310 }
 311
 312 //-----------------------------------------------------------------------------
 313 // wxApp
 314 //-----------------------------------------------------------------------------
 315
 316 IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
 317
 318 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 319     EVT_IDLE(wxApp::OnIdle)
 320 END_EVENT_TABLE()
 321
 322 wxApp::wxApp()
 323 {
 324     m_initialized = FALSE;
 325 #ifdef __WXDEBUG__
 326     m_isInAssert = FALSE;
 327 #endif // __WXDEBUG__
 328
 329     m_idleTag = 0;
 330     wxapp_install_idle_handler();
 331
 332 #if wxUSE_THREADS
 333     g_main_set_poll_func( wxapp_poll_func );
 334 #endif
 335
 336     m_colorCube = (unsigned char*) NULL;
 337
 338     // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp
 339     m_glVisualInfo = (void *) NULL;
 340 }
 341
 342 wxApp::~wxApp()
 343 {
 344     if (m_idleTag) gtk_idle_remove( m_idleTag );
 345
 346     if (m_colorCube) free(m_colorCube);
 347 }
 348
 349 bool wxApp::OnInitGui()
 350 {
 351     if ( !wxAppBase::OnInitGui() )
 352         return FALSE;
 353
 354     GdkVisual *visual = gdk_visual_get_system();
 355
 356     // if this is a wxGLApp (derived from wxApp), and we've already
 357     // chosen a specific visual, then derive the GdkVisual from that
 358     if (m_glVisualInfo != NULL)
 359     {
 360 #ifdef __WXGTK20__
 361         // seems gtk_widget_set_default_visual no longer exists?
 362         GdkVisual* vis = gtk_widget_get_default_visual();
 363 #else
 364         GdkVisual* vis = gdkx_visual_get(
 365             ((XVisualInfo *) m_glVisualInfo) ->visualid );
 366         gtk_widget_set_default_visual( vis );
 367 #endif
 368
 369         GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
 370         gtk_widget_set_default_colormap( colormap );
 371
 372         visual = vis;
 373     }
 374
 375     // On some machines, the default visual is just 256 colours, so
 376     // we make sure we get the best. This can sometimes be wasteful.
 377
 378     else
 379     if ((gdk_visual_get_best() != gdk_visual_get_system()) && (m_useBestVisual))
 380     {
 381 #ifdef __WXGTK20__
 382         /* seems gtk_widget_set_default_visual no longer exists? */
 383         GdkVisual* vis = gtk_widget_get_default_visual();
 384 #else
 385         GdkVisual* vis = gdk_visual_get_best();
 386         gtk_widget_set_default_visual( vis );
 387 #endif
 388
 389         GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
 390         gtk_widget_set_default_colormap( colormap );
 391
 392         visual = vis;
 393     }
 394
 395     // Nothing to do for 15, 16, 24, 32 bit displays
 396     if (visual->depth > 8) return TRUE;
 397
 398     // initialize color cube for 8-bit color reduction dithering
 399
 400     GdkColormap *cmap = gtk_widget_get_default_colormap();
 401
 402     m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
 403
 404     for (int r = 0; r < 32; r++)
 405     {
 406         for (int g = 0; g < 32; g++)
 407         {
 408             for (int b = 0; b < 32; b++)
 409             {
 410                 int rr = (r << 3) | (r >> 2);
 411                 int gg = (g << 3) | (g >> 2);
 412                 int bb = (b << 3) | (b >> 2);
 413
 414                 int index = -1;
 415
 416                 GdkColor *colors = cmap->colors;
 417                 if (colors)
 418                 {
 419                     int max = 3 * 65536;
 420
 421                     for (int i = 0; i < cmap->size; i++)
 422                     {
 423                         int rdiff = ((rr << 8) - colors[i].red);
 424                         int gdiff = ((gg << 8) - colors[i].green);
 425                         int bdiff = ((bb << 8) - colors[i].blue);
 426                         int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
 427                         if (sum < max)
 428                         {
 429                             index = i; max = sum;
 430                         }
 431                     }
 432                 }
 433                 else
 434                 {
 435                     // assume 8-bit true or static colors. this really exists
 436                     GdkVisual* vis = gdk_colormap_get_visual( cmap );
 437                     index = (r >> (5 - vis->red_prec)) << vis->red_shift;
 438                     index |= (g >> (5 - vis->green_prec)) << vis->green_shift;
 439                     index |= (b >> (5 - vis->blue_prec)) << vis->blue_shift;
 440                 }
 441                 m_colorCube[ (r*1024) + (g*32) + b ] = index;
 442             }
 443         }
 444     }
 445
 446     return TRUE;
 447 }
 448
 449 GdkVisual *wxApp::GetGdkVisual()
 450 {
 451     GdkVisual *visual = NULL;
 452
 453     if (m_glVisualInfo)
 454         visual = gdkx_visual_get( ((XVisualInfo *) m_glVisualInfo)->visualid );
 455     else
 456         visual = gdk_window_get_visual( wxGetRootWindow()->window );
 457
 458     wxASSERT( visual );
 459
 460     return visual;
 461 }
 462
 463 bool wxApp::ProcessIdle()
 464 {
 465     wxIdleEvent event;
 466     event.SetEventObject( this );
 467     ProcessEvent( event );
 468
 469     return event.MoreRequested();
 470 }
 471
 472 void wxApp::OnIdle( wxIdleEvent &event )
 473 {
 474     static bool s_inOnIdle = FALSE;
 475
 476     // Avoid recursion (via ProcessEvent default case)
 477     if (s_inOnIdle)
 478         return;
 479
 480     s_inOnIdle = TRUE;
 481
 482     // Resend in the main thread events which have been prepared in other
 483     // threads
 484     ProcessPendingEvents();
 485
 486     // 'Garbage' collection of windows deleted with Close()
 487     DeletePendingObjects();
 488
 489     // Send OnIdle events to all windows
 490     bool needMore = SendIdleEvents();
 491
 492     if (needMore)
 493         event.RequestMore(TRUE);
 494
 495     s_inOnIdle = FALSE;
 496 }
 497
 498 bool wxApp::SendIdleEvents()
 499 {
 500     bool needMore = FALSE;
 501
 502     wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
 503     while (node)
 504     {
 505         wxWindow* win = node->GetData();
 506         if (SendIdleEvents(win))
 507             needMore = TRUE;
 508
 509         node = node->GetNext();
 510     }
 511
 512     node = wxTopLevelWindows.GetFirst();
 513     while (node)
 514     {
 515         wxWindow* win = node->GetData();
 516         CallInternalIdle( win );
 517
 518         node = node->GetNext();
 519     }
 520     return needMore;
 521 }
 522
 523 bool wxApp::CallInternalIdle( wxWindow* win )
 524 {
 525     win->OnInternalIdle();
 526
 527     wxNode* node = win->GetChildren().First();
 528     while (node)
 529     {
 530         wxWindow* win = (wxWindow*) node->Data();
 531         CallInternalIdle( win );
 532
 533         node = node->Next();
 534     }
 535
 536     return TRUE;
 537 }
 538
 539 bool wxApp::SendIdleEvents( wxWindow* win )
 540 {
 541     bool needMore = FALSE;
 542
 543     wxIdleEvent event;
 544     event.SetEventObject(win);
 545
 546     win->GetEventHandler()->ProcessEvent(event);
 547
 548     if (event.MoreRequested())
 549         needMore = TRUE;
 550
 551     wxNode* node = win->GetChildren().First();
 552     while (node)
 553     {
 554         wxWindow* win = (wxWindow*) node->Data();
 555         if (SendIdleEvents(win))
 556             needMore = TRUE;
 557
 558         node = node->Next();
 559     }
 560
 561     return needMore;
 562 }
 563
 564 int wxApp::MainLoop()
 565 {
 566     gtk_main();
 567     return 0;
 568 }
 569
 570 void wxApp::ExitMainLoop()
 571 {
 572     if (gtk_main_level() > 0)
 573         gtk_main_quit();
 574 }
 575
 576 bool wxApp::Initialized()
 577 {
 578     return m_initialized;
 579 }
 580
 581 bool wxApp::Pending()
 582 {
 583     return (gtk_events_pending() > 0);
 584 }
 585
 586 void wxApp::Dispatch()
 587 {
 588     gtk_main_iteration();
 589 }
 590
 591 void wxApp::DeletePendingObjects()
 592 {
 593     wxNode *node = wxPendingDelete.First();
 594     while (node)
 595     {
 596         wxObject *obj = (wxObject *)node->Data();
 597
 598         delete obj;
 599
 600         if (wxPendingDelete.Find(obj))
 601             delete node;
 602
 603         node = wxPendingDelete.First();
 604     }
 605 }
 606
 607 bool wxApp::Initialize()
 608 {
 609     wxClassInfo::InitializeClasses();
 610
 611 #if wxUSE_INTL
 612     wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
 613 #endif
 614
 615     // GL: I'm annoyed ... I don't know where to put this and I don't want to
 616     // create a module for that as it's part of the core.
 617 #if wxUSE_THREADS
 618     wxPendingEvents = new wxList();
 619     wxPendingEventsLocker = new wxCriticalSection();
 620 #endif
 621
 622     wxTheColourDatabase = new wxColourDatabase( wxKEY_STRING );
 623     wxTheColourDatabase->Initialize();
 624
 625     wxInitializeStockLists();
 626     wxInitializeStockObjects();
 627
 628 #if wxUSE_WX_RESOURCES
 629     wxInitializeResourceSystem();
 630 #endif
 631
 632     wxModule::RegisterModules();
 633     if (!wxModule::InitializeModules()) return FALSE;
 634
 635     return TRUE;
 636 }
 637
 638 void wxApp::CleanUp()
 639 {
 640     wxModule::CleanUpModules();
 641
 642 #if wxUSE_WX_RESOURCES
 643     wxCleanUpResourceSystem();
 644 #endif
 645
 646     delete wxTheColourDatabase;
 647     wxTheColourDatabase = (wxColourDatabase*) NULL;
 648
 649     wxDeleteStockObjects();
 650
 651     wxDeleteStockLists();
 652
 653     delete wxTheApp;
 654     wxTheApp = (wxApp*) NULL;
 655
 656     wxClassInfo::CleanUpClasses();
 657
 658 #if wxUSE_THREADS
 659     delete wxPendingEvents;
 660     delete wxPendingEventsLocker;
 661 #endif
 662
 663     // check for memory leaks
 664 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 665     if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
 666     {
 667         wxLogDebug(wxT("There were memory leaks.\n"));
 668         wxDebugContext::Dump();
 669         wxDebugContext::PrintStatistics();
 670     }
 671 #endif // Debug
 672
 673 #if wxUSE_LOG
 674     // do this as the very last thing because everything else can log messages
 675     wxLog::DontCreateOnDemand();
 676
 677     wxLog *oldLog = wxLog::SetActiveTarget( (wxLog*) NULL );
 678     if (oldLog)
 679         delete oldLog;
 680 #endif // wxUSE_LOG
 681 }
 682
 683 //-----------------------------------------------------------------------------
 684 // wxEntry
 685 //-----------------------------------------------------------------------------
 686
 687 // NB: argc and argv may be changed here, pass by reference!
 688 int wxEntryStart( int& argc, char *argv[] )
 689 {
 690 #if wxUSE_THREADS
 691     // GTK 1.2 up to version 1.2.3 has broken threads
 692     if ((gtk_major_version == 1) &&
 693         (gtk_minor_version == 2) &&
 694         (gtk_micro_version < 4))
 695     {
 696         printf( "wxWindows warning: GUI threading disabled due to outdated GTK version\n" );
 697     }
 698     else
 699     {
 700         g_thread_init(NULL);
 701     }
 702 #endif
 703
 704     gtk_set_locale();
 705
 706     // We should have the wxUSE_WCHAR_T test on the _outside_
 707 #if wxUSE_WCHAR_T
 708 #if defined(__WXGTK20__)
 709     // gtk+ 2.0 supports Unicode through UTF-8 strings
 710     wxConvCurrent = &wxConvUTF8;
 711 #else
 712     if (!wxOKlibc()) wxConvCurrent = &wxConvLocal;
 713 #endif
 714 #else
 715     if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL;
 716 #endif
 717
 718     gdk_threads_enter();
 719
 720     gtk_init( &argc, &argv );
 721
 722     wxSetDetectableAutoRepeat( TRUE );
 723
 724     if (!wxApp::Initialize())
 725     {
 726         gdk_threads_leave();
 727         return -1;
 728     }
 729
 730     return 0;
 731 }
 732
 733
 734 int wxEntryInitGui()
 735 {
 736     int retValue = 0;
 737
 738     if ( !wxTheApp->OnInitGui() )
 739         retValue = -1;
 740
 741     wxGetRootWindow();
 742
 743     return retValue;
 744 }
 745
 746
 747 void wxEntryCleanup()
 748 {
 749 #if wxUSE_LOG
 750     // flush the logged messages if any
 751     wxLog *log = wxLog::GetActiveTarget();
 752     if (log != NULL && log->HasPendingMessages())
 753         log->Flush();
 754
 755     // continuing to use user defined log target is unsafe from now on because
 756     // some resources may be already unavailable, so replace it by something
 757     // more safe
 758     wxLog *oldlog = wxLog::SetActiveTarget(new wxLogStderr);
 759     if ( oldlog )
 760         delete oldlog;
 761 #endif // wxUSE_LOG
 762
 763     wxApp::CleanUp();
 764
 765     gdk_threads_leave();
 766 }
 767
 768
 769 int wxEntry( int argc, char *argv[] )
 770 {
 771 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 772     // This seems to be necessary since there are 'rogue'
 773     // objects present at this point (perhaps global objects?)
 774     // Setting a checkpoint will ignore them as far as the
 775     // memory checking facility is concerned.
 776     // Of course you may argue that memory allocated in globals should be
 777     // checked, but this is a reasonable compromise.
 778     wxDebugContext::SetCheckpoint();
 779 #endif
 780     int err = wxEntryStart(argc, argv);
 781     if (err)
 782         return err;
 783
 784     if (!wxTheApp)
 785     {
 786         wxCHECK_MSG( wxApp::GetInitializerFunction(), -1,
 787                      wxT("wxWindows error: No initializer - use IMPLEMENT_APP macro.\n") );
 788
 789         wxAppInitializerFunction app_ini = wxApp::GetInitializerFunction();
 790
 791         wxObject *test_app = app_ini();
 792
 793         wxTheApp = (wxApp*) test_app;
 794     }
 795
 796     wxCHECK_MSG( wxTheApp, -1, wxT("wxWindows error: no application object") );
 797
 798     wxTheApp->argc = argc;
 799 #if wxUSE_UNICODE
 800     wxTheApp->argv = new wxChar*[argc+1];
 801     int mb_argc = 0;
 802     while (mb_argc < argc)
 803     {
 804         wxTheApp->argv[mb_argc] = wxStrdup(wxConvLibc.cMB2WX(argv[mb_argc]));
 805         mb_argc++;
 806     }
 807     wxTheApp->argv[mb_argc] = (wxChar *)NULL;
 808 #else
 809     wxTheApp->argv = argv;
 810 #endif
 811
 812     wxString name(wxFileNameFromPath(argv[0]));
 813     wxStripExtension( name );
 814     wxTheApp->SetAppName( name );
 815
 816     int retValue;
 817     retValue = wxEntryInitGui();
 818
 819     // Here frames insert themselves automatically into wxTopLevelWindows by
 820     // getting created in OnInit().
 821     if ( retValue == 0 )
 822     {
 823         if ( !wxTheApp->OnInit() )
 824             retValue = -1;
 825     }
 826
 827     if ( retValue == 0 )
 828     {
 829         // Delete pending toplevel windows
 830         wxTheApp->DeletePendingObjects();
 831
 832         // When is the app not initialized ?
 833         wxTheApp->m_initialized = TRUE;
 834
 835         if (wxTheApp->Initialized())
 836         {
 837             wxTheApp->OnRun();
 838
 839             wxWindow *topWindow = wxTheApp->GetTopWindow();
 840
 841             // Delete all pending windows if any
 842             wxTheApp->DeletePendingObjects();
 843
 844             // Reset top window
 845             if (topWindow)
 846                 wxTheApp->SetTopWindow( (wxWindow*) NULL );
 847
 848             retValue = wxTheApp->OnExit();
 849         }
 850     }
 851
 852     wxEntryCleanup();
 853
 854     return retValue;
 855 }
 856
 857 #ifdef __WXDEBUG__
 858
 859 void wxApp::OnAssert(const wxChar *file, int line, const wxChar* cond, const wxChar *msg)
 860 {
 861     m_isInAssert = TRUE;
 862
 863     wxAppBase::OnAssert(file, line, cond, msg);
 864
 865     m_isInAssert = FALSE;
 866 }
 867
 868 #endif // __WXDEBUG__
 869