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