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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11     #pragma implementation "app.h"
  12 #endif
  13
  14 #ifdef __VMS
  15 // vms_jackets.h should for proper working be included before anything else
  16 # include <vms_jackets.h>
  17 #undef ConnectionNumber
  18 #endif
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #include "wx/app.h"
  24 #include "wx/gdicmn.h"
  25 #include "wx/utils.h"
  26 #include "wx/intl.h"
  27 #include "wx/log.h"
  28 #include "wx/memory.h"
  29 #include "wx/font.h"
  30 #include "wx/settings.h"
  31 #include "wx/dialog.h"
  32 #include "wx/msgdlg.h"
  33 #include "wx/file.h"
  34 #include "wx/filename.h"
  35 #include "wx/module.h"
  36 #include "wx/image.h"
  37 #include "wx/thread.h"
  38
  39 #ifdef __WXGPE__
  40 #include <gpe/init.h>
  41 #endif
  42
  43 #ifdef __WXUNIVERSAL__
  44     #include "wx/univ/theme.h"
  45     #include "wx/univ/renderer.h"
  46 #endif
  47
  48 #if wxUSE_THREADS
  49     #include "wx/thread.h"
  50 #endif
  51
  52 #include <unistd.h>
  53
  54 #ifdef HAVE_POLL
  55     #if defined(__VMS)
  56         #include <poll.h>
  57     #else
  58         // bug in the OpenBSD headers: at least in 3.1 there is no extern "C"
  59         // in neither poll.h nor sys/poll.h which results in link errors later
  60         #ifdef __OPENBSD__
  61             extern "C"
  62             {
  63         #endif
  64
  65         #include <sys/poll.h>
  66
  67         #ifdef __OPENBSD__
  68             };
  69         #endif
  70     #endif // platform
  71 #else // !HAVE_POLL
  72     // we implement poll() ourselves using select() which is supposed exist in
  73     // all modern Unices
  74     #include <sys/types.h>
  75     #include <sys/time.h>
  76     #include <unistd.h>
  77 #endif // HAVE_POLL/!HAVE_POLL
  78
  79 #include "wx/gtk/win_gtk.h"
  80
  81 #include <gtk/gtk.h>
  82
  83 //-----------------------------------------------------------------------------
  84 // global data
  85 //-----------------------------------------------------------------------------
  86
  87 bool   g_mainThreadLocked = FALSE;
  88 gint   g_pendingTag = 0;
  89
  90 static GtkWidget *gs_RootWindow = (GtkWidget*) NULL;
  91
  92 //-----------------------------------------------------------------------------
  93 // idle system
  94 //-----------------------------------------------------------------------------
  95
  96 extern bool g_isIdle;
  97
  98 void wxapp_install_idle_handler();
  99
 100 #if wxUSE_THREADS
 101 static wxMutex gs_idleTagsMutex;
 102 #endif
 103
 104 //-----------------------------------------------------------------------------
 105 // wxYield
 106 //-----------------------------------------------------------------------------
 107
 108 // not static because used by textctrl.cpp
 109 //
 110 // MT-FIXME
 111 bool wxIsInsideYield = FALSE;
 112
 113 bool wxApp::Yield(bool onlyIfNeeded)
 114 {
 115     if ( wxIsInsideYield )
 116     {
 117         if ( !onlyIfNeeded )
 118         {
 119             wxFAIL_MSG( wxT("wxYield called recursively" ) );
 120         }
 121
 122         return FALSE;
 123     }
 124
 125 #if wxUSE_THREADS
 126     if ( !wxThread::IsMain() )
 127     {
 128         // can't call gtk_main_iteration() from other threads like this
 129         return TRUE;
 130     }
 131 #endif // wxUSE_THREADS
 132
 133     wxIsInsideYield = TRUE;
 134
 135     // We need to remove idle callbacks or the loop will
 136     // never finish.
 137     wxTheApp->RemoveIdleTag();
 138
 139 #if wxUSE_LOG
 140     // disable log flushing from here because a call to wxYield() shouldn't
 141     // normally result in message boxes popping up &c
 142     wxLog::Suspend();
 143 #endif
 144
 145     while (gtk_events_pending())
 146         gtk_main_iteration();
 147
 148     // It's necessary to call ProcessIdle() to update the frames sizes which
 149     // might have been changed (it also will update other things set from
 150     // OnUpdateUI() which is a nice (and desired) side effect). But we
 151     // call ProcessIdle() only once since this is not meant for longish
 152     // background jobs (controlled by wxIdleEvent::RequestMore() and the
 153     // return value of Processidle().
 154     ProcessIdle();
 155
 156 #if wxUSE_LOG
 157     // let the logs be flashed again
 158     wxLog::Resume();
 159 #endif
 160
 161     wxIsInsideYield = FALSE;
 162
 163     return TRUE;
 164 }
 165
 166 //-----------------------------------------------------------------------------
 167 // wxWakeUpIdle
 168 //-----------------------------------------------------------------------------
 169
 170 // RR/KH: The wxMutexGui calls are not needed on GTK2 according to
 171 // the GTK faq, http://www.gtk.org/faq/#AEN500
 172 // The calls to gdk_threads_enter() and leave() are specifically noted
 173 // as not being necessary.  The MutexGui calls are still left in for GTK1.
 174 // Eliminating the MutexGui calls fixes the long-standing "random" lockup
 175 // when using wxPostEvent (which calls WakeUpIdle) from a thread.
 176
 177 void wxApp::WakeUpIdle()
 178 {
 179 #ifndef __WXGTK20__
 180 #if wxUSE_THREADS
 181     if (!wxThread::IsMain())
 182         wxMutexGuiEnter();
 183 #endif // wxUSE_THREADS_
 184 #endif // __WXGTK2__
 185
 186     wxapp_install_idle_handler();
 187
 188 #ifndef __WXGTK20__
 189 #if wxUSE_THREADS
 190     if (!wxThread::IsMain())
 191         wxMutexGuiLeave();
 192 #endif // wxUSE_THREADS_
 193 #endif // __WXGTK2__
 194 }
 195
 196 //-----------------------------------------------------------------------------
 197 // local functions
 198 //-----------------------------------------------------------------------------
 199
 200 // the callback functions must be extern "C" to comply with GTK+ declarations
 201 extern "C"
 202 {
 203
 204 static gint wxapp_pending_callback( gpointer WXUNUSED(data) )
 205 {
 206     if (!wxTheApp) return TRUE;
 207
 208     // When getting called from GDK's time-out handler
 209     // we are no longer within GDK's grab on the GUI
 210     // thread so we must lock it here ourselves.
 211     gdk_threads_enter();
 212
 213     // Sent idle event to all who request them.
 214     wxTheApp->ProcessPendingEvents();
 215
 216     {
 217 #if wxUSE_THREADS
 218         wxMutexLocker lock(gs_idleTagsMutex);
 219 #endif
 220         g_pendingTag = 0;
 221     }
 222
 223     // Flush the logged messages if any.
 224 #if wxUSE_LOG
 225     wxLog::FlushActive();
 226 #endif // wxUSE_LOG
 227
 228     // Release lock again
 229     gdk_threads_leave();
 230
 231     // Return FALSE to indicate that no more idle events are
 232     // to be sent (single shot instead of continuous stream)
 233     return FALSE;
 234 }
 235
 236 static gint wxapp_idle_callback( gpointer WXUNUSED(data) )
 237 {
 238     if (!wxTheApp)
 239         return TRUE;
 240
 241 #ifdef __WXDEBUG__
 242     // don't generate the idle events while the assert modal dialog is shown,
 243     // this completely confuses the apps which don't expect to be reentered
 244     // from some safely-looking functions
 245     if ( wxTheApp->IsInAssert() )
 246     {
 247         // But repaint the assertion message if necessary
 248         if (wxTopLevelWindows.GetCount() > 0)
 249         {
 250             wxWindow* win = (wxWindow*) wxTopLevelWindows.GetLast()->GetData();
 251 #ifdef __WXGTK20__
 252             if (win->IsKindOf(CLASSINFO(wxMessageDialog)))
 253 #else
 254             if (win->IsKindOf(CLASSINFO(wxGenericMessageDialog)))
 255 #endif
 256                 win->OnInternalIdle();
 257         }
 258         return TRUE;
 259     }
 260 #endif // __WXDEBUG__
 261
 262     // When getting called from GDK's time-out handler
 263     // we are no longer within GDK's grab on the GUI
 264     // thread so we must lock it here ourselves.
 265     gdk_threads_enter();
 266
 267     // Indicate that we are now in idle mode and event handlers
 268     // will have to reinstall the idle handler again.
 269     {
 270 #if wxUSE_THREADS
 271         wxMutexLocker lock(gs_idleTagsMutex);
 272 #endif
 273         g_isIdle = TRUE;
 274         wxTheApp->m_idleTag = 0;
 275     }
 276
 277     // Send idle event to all who request them as long as
 278     // no events have popped up in the event queue.
 279     while (wxTheApp->ProcessIdle() && (gtk_events_pending() == 0))
 280         ;
 281
 282     // Release lock again
 283     gdk_threads_leave();
 284
 285     // Return FALSE to indicate that no more idle events are
 286     // to be sent (single shot instead of continuous stream).
 287     return FALSE;
 288 }
 289
 290 #if wxUSE_THREADS
 291
 292 #ifdef HAVE_POLL
 293     #define wxPoll poll
 294     #define wxPollFd pollfd
 295 #else // !HAVE_POLL
 296
 297 typedef GPollFD wxPollFd;
 298
 299 int wxPoll(wxPollFd *ufds, unsigned int nfds, int timeout)
 300 {
 301     // convert timeout from ms to struct timeval (s/us)
 302     timeval tv_timeout;
 303     tv_timeout.tv_sec = timeout/1000;
 304     tv_timeout.tv_usec = (timeout%1000)*1000;
 305
 306     // remember the highest fd used here
 307     int fdMax = -1;
 308
 309     // and fill the sets for select()
 310     fd_set readfds;
 311     fd_set writefds;
 312     fd_set exceptfds;
 313     FD_ZERO(&readfds);
 314     FD_ZERO(&writefds);
 315     FD_ZERO(&exceptfds);
 316
 317     unsigned int i;
 318     for ( i = 0; i < nfds; i++ )
 319     {
 320         wxASSERT_MSG( ufds[i].fd < FD_SETSIZE, _T("fd out of range") );
 321
 322         if ( ufds[i].events & G_IO_IN )
 323             FD_SET(ufds[i].fd, &readfds);
 324
 325         if ( ufds[i].events & G_IO_PRI )
 326             FD_SET(ufds[i].fd, &exceptfds);
 327
 328         if ( ufds[i].events & G_IO_OUT )
 329             FD_SET(ufds[i].fd, &writefds);
 330
 331         if ( ufds[i].fd > fdMax )
 332             fdMax = ufds[i].fd;
 333     }
 334
 335     fdMax++;
 336     int res = select(fdMax, &readfds, &writefds, &exceptfds, &tv_timeout);
 337
 338     // translate the results back
 339     for ( i = 0; i < nfds; i++ )
 340     {
 341         ufds[i].revents = 0;
 342
 343         if ( FD_ISSET(ufds[i].fd, &readfds ) )
 344             ufds[i].revents |= G_IO_IN;
 345
 346         if ( FD_ISSET(ufds[i].fd, &exceptfds ) )
 347             ufds[i].revents |= G_IO_PRI;
 348
 349         if ( FD_ISSET(ufds[i].fd, &writefds ) )
 350             ufds[i].revents |= G_IO_OUT;
 351     }
 352
 353     return res;
 354 }
 355
 356 #endif // HAVE_POLL/!HAVE_POLL
 357
 358 static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout )
 359 {
 360     gdk_threads_enter();
 361
 362     wxMutexGuiLeave();
 363     g_mainThreadLocked = TRUE;
 364
 365     // we rely on the fact that glib GPollFD struct is really just pollfd but
 366     // I wonder how wise is this in the long term (VZ)
 367     gint res = wxPoll( (wxPollFd *) ufds, nfds, timeout );
 368
 369     wxMutexGuiEnter();
 370     g_mainThreadLocked = FALSE;
 371
 372     gdk_threads_leave();
 373
 374     return res;
 375 }
 376
 377 #endif // wxUSE_THREADS
 378
 379 } // extern "C"
 380
 381 void wxapp_install_idle_handler()
 382 {
 383 #if wxUSE_THREADS
 384     wxMutexLocker lock(gs_idleTagsMutex);
 385 #endif
 386
 387     // Don't install the handler if it's already installed. This test *MUST*
 388     // be done when gs_idleTagsMutex is locked!
 389     if (!g_isIdle)
 390         return;
 391
 392     // GD: this assert is raised when using the thread sample (which works)
 393     //     so the test is probably not so easy. Can widget callbacks be
 394     //     triggered from child threads and, if so, for which widgets?
 395     // wxASSERT_MSG( wxThread::IsMain() || gs_WakeUpIdle, wxT("attempt to install idle handler from widget callback in child thread (should be exclusively from wxWakeUpIdle)") );
 396
 397     wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") );
 398
 399     g_isIdle = FALSE;
 400
 401     if (g_pendingTag == 0)
 402         g_pendingTag = gtk_idle_add_priority( 900, wxapp_pending_callback, (gpointer) NULL );
 403
 404     // This routine gets called by all event handlers
 405     // indicating that the idle is over. It may also
 406     // get called from other thread for sending events
 407     // to the main thread (and processing these in
 408     // idle time). Very low priority.
 409     wxTheApp->m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL );
 410 }
 411
 412 //-----------------------------------------------------------------------------
 413 // Access to the root window global
 414 //-----------------------------------------------------------------------------
 415
 416 GtkWidget* wxGetRootWindow()
 417 {
 418     if (gs_RootWindow == NULL)
 419     {
 420         gs_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
 421         gtk_widget_realize( gs_RootWindow );
 422     }
 423     return gs_RootWindow;
 424 }
 425
 426 //-----------------------------------------------------------------------------
 427 // wxApp
 428 //-----------------------------------------------------------------------------
 429
 430 IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
 431
 432 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 433     EVT_IDLE(wxAppBase::OnIdle)
 434 END_EVENT_TABLE()
 435
 436 wxApp::wxApp()
 437 {
 438 #ifdef __WXDEBUG__
 439     m_isInAssert = FALSE;
 440 #endif // __WXDEBUG__
 441
 442     m_idleTag = 0;
 443     g_isIdle = TRUE;
 444     wxapp_install_idle_handler();
 445
 446 #if wxUSE_THREADS
 447     g_main_set_poll_func( wxapp_poll_func );
 448 #endif
 449
 450     m_colorCube = (unsigned char*) NULL;
 451
 452     // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp
 453     m_glVisualInfo = (void *) NULL;
 454     m_glFBCInfo = (void *) NULL;
 455 }
 456
 457 wxApp::~wxApp()
 458 {
 459     if (m_idleTag) gtk_idle_remove( m_idleTag );
 460
 461     if (m_colorCube) free(m_colorCube);
 462 }
 463
 464 bool wxApp::OnInitGui()
 465 {
 466     if ( !wxAppBase::OnInitGui() )
 467         return FALSE;
 468
 469     GdkVisual *visual = gdk_visual_get_system();
 470
 471     // if this is a wxGLApp (derived from wxApp), and we've already
 472     // chosen a specific visual, then derive the GdkVisual from that
 473     if (m_glVisualInfo != NULL)
 474     {
 475 #ifdef __WXGTK20__
 476         // seems gtk_widget_set_default_visual no longer exists?
 477         GdkVisual* vis = gtk_widget_get_default_visual();
 478 #else
 479         GdkVisual* vis = gdkx_visual_get(
 480             ((XVisualInfo *) m_glVisualInfo) ->visualid );
 481         gtk_widget_set_default_visual( vis );
 482 #endif
 483
 484         GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
 485         gtk_widget_set_default_colormap( colormap );
 486
 487         visual = vis;
 488     }
 489
 490     // On some machines, the default visual is just 256 colours, so
 491     // we make sure we get the best. This can sometimes be wasteful.
 492
 493     else
 494     if ((gdk_visual_get_best() != gdk_visual_get_system()) && (m_useBestVisual))
 495     {
 496 #ifdef __WXGTK20__
 497         /* seems gtk_widget_set_default_visual no longer exists? */
 498         GdkVisual* vis = gtk_widget_get_default_visual();
 499 #else
 500         GdkVisual* vis = gdk_visual_get_best();
 501         gtk_widget_set_default_visual( vis );
 502 #endif
 503
 504         GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
 505         gtk_widget_set_default_colormap( colormap );
 506
 507         visual = vis;
 508     }
 509
 510     // Nothing to do for 15, 16, 24, 32 bit displays
 511     if (visual->depth > 8) return TRUE;
 512
 513     // initialize color cube for 8-bit color reduction dithering
 514
 515     GdkColormap *cmap = gtk_widget_get_default_colormap();
 516
 517     m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
 518
 519     for (int r = 0; r < 32; r++)
 520     {
 521         for (int g = 0; g < 32; g++)
 522         {
 523             for (int b = 0; b < 32; b++)
 524             {
 525                 int rr = (r << 3) | (r >> 2);
 526                 int gg = (g << 3) | (g >> 2);
 527                 int bb = (b << 3) | (b >> 2);
 528
 529                 int index = -1;
 530
 531                 GdkColor *colors = cmap->colors;
 532                 if (colors)
 533                 {
 534                     int max = 3 * 65536;
 535
 536                     for (int i = 0; i < cmap->size; i++)
 537                     {
 538                         int rdiff = ((rr << 8) - colors[i].red);
 539                         int gdiff = ((gg << 8) - colors[i].green);
 540                         int bdiff = ((bb << 8) - colors[i].blue);
 541                         int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
 542                         if (sum < max)
 543                         {
 544                             index = i; max = sum;
 545                         }
 546                     }
 547                 }
 548                 else
 549                 {
 550                     // assume 8-bit true or static colors. this really exists
 551                     GdkVisual* vis = gdk_colormap_get_visual( cmap );
 552                     index = (r >> (5 - vis->red_prec)) << vis->red_shift;
 553                     index |= (g >> (5 - vis->green_prec)) << vis->green_shift;
 554                     index |= (b >> (5 - vis->blue_prec)) << vis->blue_shift;
 555                 }
 556                 m_colorCube[ (r*1024) + (g*32) + b ] = index;
 557             }
 558         }
 559     }
 560
 561     return TRUE;
 562 }
 563
 564 GdkVisual *wxApp::GetGdkVisual()
 565 {
 566     GdkVisual *visual = NULL;
 567
 568     if (m_glVisualInfo)
 569         visual = gdkx_visual_get( ((XVisualInfo *) m_glVisualInfo)->visualid );
 570     else
 571         visual = gdk_window_get_visual( wxGetRootWindow()->window );
 572
 573     wxASSERT( visual );
 574
 575     return visual;
 576 }
 577
 578 bool wxApp::Initialize(int& argc, wxChar **argv)
 579 {
 580     bool init_result;
 581
 582 #if wxUSE_THREADS
 583     // GTK 1.2 up to version 1.2.3 has broken threads
 584     if ((gtk_major_version == 1) &&
 585         (gtk_minor_version == 2) &&
 586         (gtk_micro_version < 4))
 587     {
 588         printf( "wxWidgets warning: GUI threading disabled due to outdated GTK version\n" );
 589     }
 590     else
 591     {
 592         if (!g_thread_supported())
 593             g_thread_init(NULL);
 594     }
 595 #endif // wxUSE_THREADS
 596
 597     gtk_set_locale();
 598
 599     // We should have the wxUSE_WCHAR_T test on the _outside_
 600 #if wxUSE_WCHAR_T
 601     #if defined(__WXGTK20__)
 602         // gtk+ 2.0 supports Unicode through UTF-8 strings
 603         wxConvCurrent = &wxConvUTF8;
 604     #else // GTK 1.x
 605         if (!wxOKlibc())
 606             wxConvCurrent = &wxConvLocal;
 607     #endif
 608 #else // !wxUSE_WCHAR_T
 609     if (!wxOKlibc())
 610         wxConvCurrent = (wxMBConv*) NULL;
 611 #endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T
 612
 613 #ifdef __WXGTK20__
 614     // decide which conversion to use for the file names
 615
 616     // (1) this variable exists for the sole purpose of specifying the encoding
 617     //     of the filenames for GTK+ programs, so use it if it is set
 618     wxString encName(wxGetenv(_T("G_FILENAME_ENCODING")));
 619     if (encName == _T("@locale"))
 620         encName.clear();
 621     encName.MakeUpper();
 622 #if wxUSE_INTL
 623     if (encName.empty())
 624     {
 625         // (2) if a non default locale is set, assume that the user wants his
 626         //     filenames in this locale too
 627         encName = wxLocale::GetSystemEncodingName().Upper();
 628         // (3) finally use UTF-8 by default
 629         if (encName.empty() || encName == _T("US-ASCII"))
 630             encName = _T("UTF-8");
 631         wxSetEnv(_T("G_FILENAME_ENCODING"), encName);
 632     }
 633 #else
 634     if (encName.empty())
 635         encName = _T("UTF-8");
 636 #endif // wxUSE_INTL
 637     static wxConvBrokenFileNames fileconv(encName);
 638     wxConvFileName = &fileconv;
 639 #endif // __WXGTK20__
 640
 641 #if wxUSE_UNICODE
 642     // gtk_init() wants UTF-8, not wchar_t, so convert
 643     int i;
 644     char **argvGTK = new char *[argc + 1];
 645     for ( i = 0; i < argc; i++ )
 646     {
 647         argvGTK[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv[i]));
 648     }
 649
 650     argvGTK[argc] = NULL;
 651
 652     int argcGTK = argc;
 653
 654 #ifdef __WXGPE__
 655     init_result = true;  // is there a _check() version of this?
 656     gpe_application_init( &argcGTK, &argvGTK );
 657 #else
 658     init_result = gtk_init_check( &argcGTK, &argvGTK );
 659 #endif
 660
 661     if ( argcGTK != argc )
 662     {
 663         // we have to drop the parameters which were consumed by GTK+
 664         for ( i = 0; i < argcGTK; i++ )
 665         {
 666             while ( strcmp(wxConvUTF8.cWX2MB(argv[i]), argvGTK[i]) != 0 )
 667             {
 668                 memmove(argv + i, argv + i + 1, argc - i);
 669             }
 670         }
 671
 672         argc = argcGTK;
 673     }
 674     //else: gtk_init() didn't modify our parameters
 675
 676     // free our copy
 677     for ( i = 0; i < argcGTK; i++ )
 678     {
 679         free(argvGTK[i]);
 680     }
 681
 682     delete [] argvGTK;
 683 #else // !wxUSE_UNICODE
 684     // gtk_init() shouldn't actually change argv itself (just its contents) so
 685     // it's ok to pass pointer to it
 686     init_result = gtk_init_check( &argc, &argv );
 687 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 688
 689     if (!init_result) {
 690         wxLogError(wxT("Unable to initialize gtk, is DISPLAY set properly?"));
 691         return false;
 692     }
 693
 694     // we can not enter threads before gtk_init is done
 695     gdk_threads_enter();
 696
 697     if ( !wxAppBase::Initialize(argc, argv) )
 698     {
 699         gdk_threads_leave();
 700
 701         return false;
 702     }
 703
 704     wxSetDetectableAutoRepeat( TRUE );
 705
 706 #if wxUSE_INTL
 707     wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
 708 #endif
 709
 710     return true;
 711 }
 712
 713 void wxApp::CleanUp()
 714 {
 715     gdk_threads_leave();
 716
 717     wxAppBase::CleanUp();
 718 }
 719
 720 #ifdef __WXDEBUG__
 721
 722 void wxApp::OnAssert(const wxChar *file, int line, const wxChar* cond, const wxChar *msg)
 723 {
 724     m_isInAssert = TRUE;
 725
 726     wxAppBase::OnAssert(file, line, cond, msg);
 727
 728     m_isInAssert = FALSE;
 729 }
 730
 731 #endif // __WXDEBUG__
 732
 733 void wxApp::RemoveIdleTag()
 734 {
 735 #if wxUSE_THREADS
 736     wxMutexLocker lock(gs_idleTagsMutex);
 737 #endif
 738     if (!g_isIdle)
 739     {
 740         gtk_idle_remove( wxTheApp->m_idleTag );
 741         wxTheApp->m_idleTag = 0;
 742         g_isIdle = TRUE;
 743     }
 744 }