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