+#if wxUSE_THREADS
+ if (!wxThread::IsMain())
+ wxMutexGuiEnter();
+#endif
+
+ if (g_isIdle)
+ wxapp_install_idle_handler();
+
+#if wxUSE_THREADS
+ if (!wxThread::IsMain())
+ wxMutexGuiLeave();
+#endif
+}
+
+//-----------------------------------------------------------------------------
+// local functions
+//-----------------------------------------------------------------------------
+
+gint wxapp_pending_callback( gpointer WXUNUSED(data) )
+{
+ if (!wxTheApp) return TRUE;
+
+ // when getting called from GDK's time-out handler
+ // we are no longer within GDK's grab on the GUI
+ // thread so we must lock it here ourselves
+ gdk_threads_enter();
+
+ // Sent idle event to all who request them
+ wxTheApp->ProcessPendingEvents();
+
+ g_pendingTag = 0;
+
+ /* flush the logged messages if any */
+#if wxUSE_LOG
+ wxLog::FlushActive();
+#endif // wxUSE_LOG
+
+ // Release lock again
+ gdk_threads_leave();
+
+ // Return FALSE to indicate that no more idle events are
+ // to be sent (single shot instead of continuous stream)
+ return FALSE;
+}
+
+gint wxapp_idle_callback( gpointer WXUNUSED(data) )
+{
+ if (!wxTheApp)
+ return TRUE;
+
+#ifdef __WXDEBUG__
+ if ( wxTheApp->IsInAssert() )
+ {
+ // don't generate the idle events while the assert modal dialog is
+ // shown, this completely confuses the apps which don't expect to be
+ // reentered from some safely-looking functions
+ return FALSE;
+ }
+#endif // __WXDEBUG__
+
+ // when getting called from GDK's time-out handler
+ // we are no longer within GDK's grab on the GUI
+ // thread so we must lock it here ourselves
+ gdk_threads_enter();
+
+ /* Indicate that we are now in idle mode - even so deeply
+ in idle mode that we don't get any idle events anymore.
+ this is like wxMSW where an idle event is sent only
+ once each time after the event queue has been completely
+ emptied */
+ g_isIdle = TRUE;
+ wxTheApp->m_idleTag = 0;
+
+ // Sent idle event to all who request them
+ while (wxTheApp->ProcessIdle()) { }
+
+ // Release lock again
+ gdk_threads_leave();
+
+ // Return FALSE to indicate that no more idle events are
+ // to be sent (single shot instead of continuous stream)
+ return FALSE;
+}
+
+void wxapp_install_idle_handler()
+{
+ wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") );
+
+ g_isIdle = FALSE;
+
+ if (g_pendingTag == 0)
+ g_pendingTag = gtk_idle_add_priority( 900, wxapp_pending_callback, (gpointer) NULL );
+
+ /* This routine gets called by all event handlers
+ indicating that the idle is over. It may also
+ get called from other thread for sending events
+ to the main thread (and processing these in
+ idle time). Very low priority. */
+
+ wxTheApp->m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL );
+}
+
+#if wxUSE_THREADS
+
+static int g_threadUninstallLevel = 0;
+
+void wxapp_install_thread_wakeup()
+{
+ g_threadUninstallLevel++;
+
+ if (g_threadUninstallLevel != 1) return;
+
+ if (wxTheApp->m_wakeUpTimerTag) return;
+
+ wxTheApp->m_wakeUpTimerTag = gtk_timeout_add( 50, wxapp_wakeup_timerout_callback, (gpointer) NULL );
+}
+
+void wxapp_uninstall_thread_wakeup()
+{
+ g_threadUninstallLevel--;
+
+ if (g_threadUninstallLevel != 0) return;
+
+ if (!wxTheApp->m_wakeUpTimerTag) return;
+
+ gtk_timeout_remove( wxTheApp->m_wakeUpTimerTag );
+ wxTheApp->m_wakeUpTimerTag = 0;
+}
+
+gint wxapp_wakeup_timerout_callback( gpointer WXUNUSED(data) )
+{
+ // when getting called from GDK's time-out handler
+ // we are no longer within GDK's grab on the GUI
+ // thread so we must lock it here ourselves
+ gdk_threads_enter();
+
+ wxapp_uninstall_thread_wakeup();
+
+ // unblock other threads wishing to do some GUI things
+ wxMutexGuiLeave();
+
+ g_mainThreadLocked = TRUE;
+
+ // wake up other threads
+ wxUsleep( 1 );
+
+ // block other thread again
+ wxMutexGuiEnter();
+
+ g_mainThreadLocked = FALSE;
+
+ wxapp_install_thread_wakeup();
+
+ // release lock again
+ gdk_threads_leave();
+
+ return TRUE;
+}
+
+#endif // wxUSE_THREADS
projects / wxWidgets.git / blobdiff