typo fixed

[wxWidgets.git] / src / gtk1 / app.cpp

diff --git a/src/gtk1/app.cpp b/src/gtk1/app.cpp
index 26a9ea36e6d6e023559aee039d0f3761e21ebaa2..14935b2780bc3155e927eb2dee26c5e540d67457 100644 (file)
--- a/src/gtk1/app.cpp
+++ b/src/gtk1/app.cpp
@@ -29,7 +29,7 @@
 #include "wx/image.h"
 
 #if wxUSE_THREADS
 #include "wx/image.h"
 
 #if wxUSE_THREADS

-#include "wx/thread.h"
+    #include "wx/thread.h"

 #endif
 
 #include <unistd.h>
 #endif
 
 #include <unistd.h>


@@ -47,85 +47,20 @@
 wxApp *wxTheApp = (wxApp *)  NULL;
 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 
 wxApp *wxTheApp = (wxApp *)  NULL;
 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 

-extern wxResourceCache *wxTheResourceCache;

 extern bool g_isIdle;
 
 extern bool g_isIdle;
 

-unsigned char g_palette[64*3] =
-{
-  0x0,  0x0,  0x0,
-  0xff, 0xff, 0xff,
-  0xff, 0x0,  0x0,
-  0xff, 0xff, 0x0,
-  0x0,  0xff, 0x0,
-  0x0,  0x0,  0xff,
-  0x0,  0xff, 0xff,
-  0x99, 0x99, 0x99,
-  0xff, 0x88, 0x0,
-  0x88, 0x0,  0x0,
-  0x0,  0x88, 0x88,
-  0x88, 0x88, 0x0,
-  0xff, 0xcc, 0x97,
-  0xbb, 0xbb, 0xbb,
-  0x9f, 0x6b, 0x42,
-  0x55, 0x55, 0x55,
-  0xdd, 0xdd, 0xdd,
-  0x77, 0x77, 0x77,
-  0x33, 0x33, 0x33,
-  0xcc, 0x0,  0x0,
-  0xff, 0x44, 0x0,
-  0xff, 0xcc, 0x0,
-  0xcc, 0xcc, 0x0,
-  0x60, 0x60, 0x0,
-  0x0,  0x43, 0x0,
-  0x0,  0x7f, 0x0,
-  0x0,  0xcc, 0x0,
-  0x0,  0x44, 0x44,
-  0x0,  0x0,  0x44,
-  0x0,  0x0,  0x88,
-  0xef, 0xb1, 0x7b,
-  0xdf, 0x98, 0x5f,
-  0xbf, 0x87, 0x56,
-  0x7f, 0x57, 0x26,
-  0x5f, 0x39, 0xc,
-  0x3f, 0x1c, 0x0,
-  0x21, 0x0,  0x0,
-  0x0,  0x43, 0x87,
-  0x2d, 0x70, 0xaf,
-  0x5a, 0x9e, 0xd7,
-  0x87, 0xcc, 0xff,
-  0xff, 0xe0, 0xba,
-  0x21, 0x43, 0xf,
-  0x3d, 0x5d, 0x25,
-  0x59, 0x78, 0x3a,
-  0x75, 0x93, 0x4f,
-  0x91, 0xae, 0x64,
-  0xad, 0xc8, 0x7a,
-  0xf0, 0xa8, 0xef,
-  0xd0, 0x88, 0xd0,
-  0xaf, 0x66, 0xaf,
-  0x8e, 0x44, 0x8e,
-  0x6d, 0x22, 0x6d,
-  0x4b, 0x0,  0x4b,
-  0xff, 0xc0, 0xbc,
-  0xff, 0x93, 0x91,
-  0xff, 0x66, 0x67,
-  0xd8, 0xf2, 0xbf,
-  0xff, 0xc9, 0x68,
-  0xff, 0x96, 0x67,
-  0xa5, 0x60, 0xff,
-  0x51, 0xff, 0x99,
-  0x3f, 0xa5, 0x63,
-  0x98, 0x90, 0x67
-};
+bool   g_mainThreadLocked = FALSE;
+gint   g_pendingTag = 0;
+
+GtkWidget *wxRootWindow = (GtkWidget*) NULL;

 
 //-----------------------------------------------------------------------------
 // local functions
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------
 // local functions
 //-----------------------------------------------------------------------------
 

-extern void wxFlushResources();
-

 /* forward declaration */
 gint   wxapp_idle_callback( gpointer WXUNUSED(data) );
 /* forward declaration */
 gint   wxapp_idle_callback( gpointer WXUNUSED(data) );

+gint   wxapp_pending_callback( gpointer WXUNUSED(data) );

 void   wxapp_install_idle_handler();
 
 #if wxUSE_THREADS
 void   wxapp_install_idle_handler();
 
 #if wxUSE_THREADS


@@ -145,106 +80,185 @@ void wxExit()
 // wxYield
 //-----------------------------------------------------------------------------
 
 // wxYield
 //-----------------------------------------------------------------------------
 

+static bool gs_inYield = FALSE;
+

 bool wxYield()
 {
 bool wxYield()
 {

-    bool has_idle = (wxTheApp->m_idleTag != 0);
+#if wxUSE_THREADS
+    if ( !wxThread::IsMain() )
+    {
+        // can't call gtk_main_iteration() from other threads like this
+        return TRUE;
+    }
+#endif // wxUSE_THREADS

 
 

-    if (has_idle)
+#ifdef __WXDEBUG__    
+    if (gs_inYield)
+        wxFAIL_MSG( wxT("wxYield called recursively" ) );
+#endif
+    
+    gs_inYield = TRUE;
+
+    if (!g_isIdle)

     {
     {

-        /* We need to temporarily remove idle callbacks or the loop will
-           never finish. */
+        // We need to remove idle callbacks or the loop will
+        // never finish.

         gtk_idle_remove( wxTheApp->m_idleTag );
         wxTheApp->m_idleTag = 0;
         gtk_idle_remove( wxTheApp->m_idleTag );
         wxTheApp->m_idleTag = 0;

+        g_isIdle = TRUE;

     }
 
     while (gtk_events_pending())
         gtk_main_iteration();
 
     }
 
     while (gtk_events_pending())
         gtk_main_iteration();
 

+    // disable log flushing from here because a call to wxYield() shouldn't
+    // normally result in message boxes popping up &c
+    wxLog::Suspend();
+

     /* it's necessary to call ProcessIdle() to update the frames sizes which
        might have been changed (it also will update other things set from
        OnUpdateUI() which is a nice (and desired) side effect) */
     while (wxTheApp->ProcessIdle()) { }
 
     /* it's necessary to call ProcessIdle() to update the frames sizes which
        might have been changed (it also will update other things set from
        OnUpdateUI() which is a nice (and desired) side effect) */
     while (wxTheApp->ProcessIdle()) { }
 

-    if (has_idle)
-    {
-        /* re-add idle handler */
-        wxTheApp->m_idleTag = gtk_idle_add( wxapp_idle_callback, (gpointer) NULL );
-    }
+    // let the logs be flashed again
+    wxLog::Resume();
+
+    gs_inYield = FALSE;

 
     return TRUE;
 }
 
 
     return TRUE;
 }
 

+//-----------------------------------------------------------------------------
+// wxYieldIfNeeded
+// Like wxYield, but fails silently if the yield is recursive.
+//-----------------------------------------------------------------------------
+
+bool wxYieldIfNeeded()
+{
+    if (gs_inYield)
+        return FALSE;
+        
+    return wxYield();    
+}
+

 //-----------------------------------------------------------------------------
 // wxWakeUpIdle
 //-----------------------------------------------------------------------------
 
 void wxWakeUpIdle()
 {
 //-----------------------------------------------------------------------------
 // wxWakeUpIdle
 //-----------------------------------------------------------------------------
 
 void wxWakeUpIdle()
 {

-    if (g_isIdle) 
+#if wxUSE_THREADS
+    if (!wxThread::IsMain())
+        wxMutexGuiEnter();
+#endif
+
+    if (g_isIdle)

         wxapp_install_idle_handler();
         wxapp_install_idle_handler();

+
+#if wxUSE_THREADS
+    if (!wxThread::IsMain())
+        wxMutexGuiLeave();
+#endif

 }
 
 //-----------------------------------------------------------------------------
 // local functions
 //-----------------------------------------------------------------------------
 
 }
 
 //-----------------------------------------------------------------------------
 // local functions
 //-----------------------------------------------------------------------------
 

-gint wxapp_idle_callback( gpointer WXUNUSED(data) )
+gint wxapp_pending_callback( gpointer WXUNUSED(data) )

 {
     if (!wxTheApp) return TRUE;
 {
     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();

 
 

-#if (GTK_MINOR_VERSION > 0)
-    /* when getting called from GDK's idle handler we
-       are no longer within GDK's grab on the GUI
-       thread so we must lock it here ourselves */
-    GDK_THREADS_ENTER ();
-#endif
+    // Sent idle event to all who request them
+    wxTheApp->ProcessPendingEvents();

 
 

-    /* sent idle event to all who request them */
-    while (wxTheApp->ProcessIdle()) { }
+    g_pendingTag = 0;

 
 

-    /* we don't want any more idle events until the next event is
-       sent to wxGTK */
-    gtk_idle_remove( wxTheApp->m_idleTag );
-    wxTheApp->m_idleTag = 0;
+    /* flush the logged messages if any */
+#if wxUSE_LOG
+    wxLog::FlushActive();
+#endif // wxUSE_LOG
+
+    // Release lock again
+    gdk_threads_leave();

 
 

-    /* indicate that we are now in idle mode - even so deeply
+    // 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;
+    
+    // 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;
        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;

 
 

-#if (GTK_MINOR_VERSION > 0)
-    /* release lock again */
-    GDK_THREADS_LEAVE ();
-#endif
+    // Sent idle event to all who request them
+    while (wxTheApp->ProcessIdle()) { }

 
 

-    return TRUE;
+    // 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") );
 
 }
 
 void wxapp_install_idle_handler()
 {
     wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") );
 

-    /* this routine gets called by all event handlers
-       indicating that the idle is over. */
+    g_isIdle = FALSE;

 
 

-    wxTheApp->m_idleTag = gtk_idle_add( wxapp_idle_callback, (gpointer) NULL );
+    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. */

 
 

-    g_isIdle = FALSE;
+    wxTheApp->m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL );

 }
 
 #if wxUSE_THREADS
 
 }
 
 #if wxUSE_THREADS
 

+static int g_threadUninstallLevel = 0;
+

 void wxapp_install_thread_wakeup()
 {
 void wxapp_install_thread_wakeup()
 {

+    g_threadUninstallLevel++;
+    
+    if (g_threadUninstallLevel != 1) return;
+

     if (wxTheApp->m_wakeUpTimerTag) return;
 
     if (wxTheApp->m_wakeUpTimerTag) return;
 

-    wxTheApp->m_wakeUpTimerTag = gtk_timeout_add( 100, wxapp_wakeup_timerout_callback, (gpointer) NULL );
+    wxTheApp->m_wakeUpTimerTag = gtk_timeout_add( 50, wxapp_wakeup_timerout_callback, (gpointer) NULL );

 }
 
 void wxapp_uninstall_thread_wakeup()
 {
 }
 
 void wxapp_uninstall_thread_wakeup()
 {

+    g_threadUninstallLevel--;
+    
+    if (g_threadUninstallLevel != 0) return;
+

     if (!wxTheApp->m_wakeUpTimerTag) return;
 
     gtk_timeout_remove( wxTheApp->m_wakeUpTimerTag );
     if (!wxTheApp->m_wakeUpTimerTag) return;
 
     gtk_timeout_remove( wxTheApp->m_wakeUpTimerTag );


@@ -253,31 +267,31 @@ void wxapp_uninstall_thread_wakeup()
 
 gint wxapp_wakeup_timerout_callback( gpointer WXUNUSED(data) )
 {
 
 gint wxapp_wakeup_timerout_callback( gpointer WXUNUSED(data) )
 {

-    wxapp_uninstall_thread_wakeup();
-
-#if (GTK_MINOR_VERSION > 0)

     // 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
     // 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 ();
-#endif
+    gdk_threads_enter();
+
+    wxapp_uninstall_thread_wakeup();

 
     // unblock other threads wishing to do some GUI things
     wxMutexGuiLeave();
 
 
     // unblock other threads wishing to do some GUI things
     wxMutexGuiLeave();
 

+    g_mainThreadLocked = TRUE;
+

     // wake up other threads
     wxUsleep( 1 );
 
     // block other thread again
     wxMutexGuiEnter();
 
     // wake up other threads
     wxUsleep( 1 );
 
     // block other thread again
     wxMutexGuiEnter();
 

-#if (GTK_MINOR_VERSION > 0)
-    // release lock again
-    GDK_THREADS_LEAVE ();
-#endif
+    g_mainThreadLocked = FALSE;

 
     wxapp_install_thread_wakeup();
 
 
     wxapp_install_thread_wakeup();
 

+    // release lock again
+    gdk_threads_leave();
+

     return TRUE;
 }
 
     return TRUE;
 }
 


@@ -300,7 +314,8 @@ wxApp::wxApp()
     m_topWindow = (wxWindow *) NULL;
     m_exitOnFrameDelete = TRUE;
 
     m_topWindow = (wxWindow *) NULL;
     m_exitOnFrameDelete = TRUE;
 

-    m_idleTag = gtk_idle_add( wxapp_idle_callback, (gpointer) NULL );
+    m_idleTag = 0;
+    wxapp_install_idle_handler();

 
 #if wxUSE_THREADS
     m_wakeUpTimerTag = 0;
 
 #if wxUSE_THREADS
     m_wakeUpTimerTag = 0;


@@ -308,6 +323,8 @@ wxApp::wxApp()
 #endif
 
     m_colorCube = (unsigned char*) NULL;
 #endif
 
     m_colorCube = (unsigned char*) NULL;

+
+    m_useBestVisual = FALSE;

 }
 
 wxApp::~wxApp()
 }
 
 wxApp::~wxApp()


@@ -328,46 +345,27 @@ bool wxApp::OnInitGui()
     /* on some machines, the default visual is just 256 colours, so
        we make sure we get the best. this can sometimes be wasteful,
        of course, but what do these guys pay $30.000 for? */
     /* on some machines, the default visual is just 256 colours, so
        we make sure we get the best. this can sometimes be wasteful,
        of course, but what do these guys pay $30.000 for? */

-/*
-    if (gdk_visual_get_best() != gdk_visual_get_system())
+
+    if ((gdk_visual_get_best() != gdk_visual_get_system()) &&
+        (m_useBestVisual))

     {
     {

+#ifdef __WXGTK20__
+        /* seems gtk_widget_set_default_visual no longer exists? */
+        GdkVisual* vis = gtk_widget_get_default_visual();
+#else

         GdkVisual* vis = gdk_visual_get_best();
         gtk_widget_set_default_visual( vis );
         GdkVisual* vis = gdk_visual_get_best();
         gtk_widget_set_default_visual( vis );

+#endif

 
         GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
         gtk_widget_set_default_colormap( colormap );
 
         visual = vis;
     }
 
         GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
         gtk_widget_set_default_colormap( colormap );
 
         visual = vis;
     }

-*/

 
     /* Nothing to do for 15, 16, 24, 32 bit displays */
     if (visual->depth > 8) return TRUE;
 
 
     /* Nothing to do for 15, 16, 24, 32 bit displays */
     if (visual->depth > 8) return TRUE;
 

-        /* this initiates the standard palette as defined by GdkImlib
-           in the GNOME libraries. it ensures that all GNOME applications
-           use the same 64 colormap entries on 8-bit displays so you
-           can use several rather graphics-heavy applications at the
-           same time.
-           NOTE: this doesn't really seem to work this way... */
-
-        /*
-        GdkColormap *cmap = gdk_colormap_new( gdk_visual_get_system(), TRUE );
-
-        for (int i = 0; i < 64; i++)
-        {
-            GdkColor col;
-            col.red    = g_palette[i*3 + 0] << 8;
-            col.green  = g_palette[i*3 + 1] << 8;
-            col.blue   = g_palette[i*3 + 2] << 8;
-            col.pixel  = 0;
-
-            gdk_color_alloc( cmap, &col );
-        }
-
-        gtk_widget_set_default_colormap( cmap );
-        */
-

     /* initialize color cube for 8-bit color reduction dithering */
 
     GdkColormap *cmap = gtk_widget_get_default_colormap();
     /* initialize color cube for 8-bit color reduction dithering */
 
     GdkColormap *cmap = gtk_widget_get_default_colormap();


@@ -450,13 +448,6 @@ void wxApp::OnIdle( wxIdleEvent &event )
     /* 'Garbage' collection of windows deleted with Close(). */
     DeletePendingObjects();
 
     /* 'Garbage' collection of windows deleted with Close(). */
     DeletePendingObjects();
 

-    /* flush the logged messages if any */
-#if wxUSE_LOG
-    wxLog *log = wxLog::GetActiveTarget();
-    if (log != NULL && log->HasPendingMessages())
-        log->Flush();
-#endif // wxUSE_LOG
-

     /* Send OnIdle events to all windows */
     bool needMore = SendIdleEvents();
 
     /* Send OnIdle events to all windows */
     bool needMore = SendIdleEvents();
 


@@ -489,7 +480,7 @@ bool wxApp::SendIdleEvents( wxWindow* win )
     wxIdleEvent event;
     event.SetEventObject(win);
 
     wxIdleEvent event;
     event.SetEventObject(win);
 

-    win->ProcessEvent(event);
+    win->GetEventHandler()->ProcessEvent(event);

 
     win->OnInternalIdle();
 
 
     win->OnInternalIdle();
 


@@ -516,7 +507,8 @@ int wxApp::MainLoop()
 
 void wxApp::ExitMainLoop()
 {
 
 void wxApp::ExitMainLoop()
 {

-    gtk_main_quit();
+    if (gtk_main_level() > 0)
+        gtk_main_quit();

 }
 
 bool wxApp::Initialized()
 }
 
 bool wxApp::Initialized()


@@ -565,11 +557,6 @@ bool wxApp::Initialize()
     wxPendingEventsLocker = new wxCriticalSection();
 #endif
 
     wxPendingEventsLocker = new wxCriticalSection();
 #endif
 

-/*
-    wxTheFontNameDirectory =  new wxFontNameDirectory;
-    wxTheFontNameDirectory->Initialize();
-*/
-

     wxTheColourDatabase = new wxColourDatabase( wxKEY_STRING );
     wxTheColourDatabase->Initialize();
 
     wxTheColourDatabase = new wxColourDatabase( wxKEY_STRING );
     wxTheColourDatabase->Initialize();
 


@@ -577,8 +564,6 @@ bool wxApp::Initialize()
     wxInitializeStockObjects();
 
 #if wxUSE_WX_RESOURCES
     wxInitializeStockObjects();
 
 #if wxUSE_WX_RESOURCES

-    wxTheResourceCache = new wxResourceCache( wxKEY_STRING );
-

     wxInitializeResourceSystem();
 #endif
 
     wxInitializeResourceSystem();
 #endif
 


@@ -593,23 +578,13 @@ void wxApp::CleanUp()
     wxModule::CleanUpModules();
 
 #if wxUSE_WX_RESOURCES
     wxModule::CleanUpModules();
 
 #if wxUSE_WX_RESOURCES

-    wxFlushResources();
-
-    if (wxTheResourceCache)
-        delete wxTheResourceCache;
-    wxTheResourceCache = (wxResourceCache*) NULL;
-

     wxCleanUpResourceSystem();
 #endif
 
     if (wxTheColourDatabase)
         delete wxTheColourDatabase;
     wxCleanUpResourceSystem();
 #endif
 
     if (wxTheColourDatabase)
         delete wxTheColourDatabase;

-    wxTheColourDatabase = (wxColourDatabase*) NULL;

 
 

-/*
-    if (wxTheFontNameDirectory) delete wxTheFontNameDirectory;
-    wxTheFontNameDirectory = (wxFontNameDirectory*) NULL;
-*/
+    wxTheColourDatabase = (wxColourDatabase*) NULL;

 
     wxDeleteStockObjects();
 
 
     wxDeleteStockObjects();
 


@@ -633,7 +608,7 @@ void wxApp::CleanUp()
 
     // check for memory leaks
 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 
     // check for memory leaks
 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT

-    if (wxDebugContext::CountObjectsLeft() > 0)
+    if (wxDebugContext::CountObjectsLeft(TRUE) > 0)

     {
         wxLogDebug(wxT("There were memory leaks.\n"));
         wxDebugContext::Dump();
     {
         wxLogDebug(wxT("There were memory leaks.\n"));
         wxDebugContext::Dump();


@@ -655,22 +630,103 @@ void wxApp::CleanUp()
 // wxEntry
 //-----------------------------------------------------------------------------
 
 // wxEntry
 //-----------------------------------------------------------------------------
 

-int wxEntry( int argc, char *argv[] )
+
+int wxEntryStart( int argc, char *argv[] )

 {
 {

+#if wxUSE_THREADS
+    /* GTK 1.2 up to version 1.2.3 has broken threads */
+   if ((gtk_major_version == 1) &&
+        (gtk_minor_version == 2) &&
+        (gtk_micro_version < 4))
+    {
+        printf( "wxWindows warning: GUI threading disabled due to outdated GTK version\n" );
+    }
+    else
+    {
+        g_thread_init(NULL);
+    }
+#endif
+

     gtk_set_locale();
 
     gtk_set_locale();
 

+    // We should have the wxUSE_WCHAR_T test on the _outside_

 #if wxUSE_WCHAR_T
 #if wxUSE_WCHAR_T

+#if defined(__WXGTK20__)
+    // gtk+ 2.0 supports Unicode through UTF-8 strings
+    wxConvCurrent = &wxConvUTF8;
+#else

     if (!wxOKlibc()) wxConvCurrent = &wxConvLocal;
     if (!wxOKlibc()) wxConvCurrent = &wxConvLocal;

+#endif

 #else
     if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL;
 #endif
 
 #else
     if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL;
 #endif
 

+    gdk_threads_enter();
+

     gtk_init( &argc, &argv );
 
     wxSetDetectableAutoRepeat( TRUE );
 
     if (!wxApp::Initialize())
     gtk_init( &argc, &argv );
 
     wxSetDetectableAutoRepeat( TRUE );
 
     if (!wxApp::Initialize())

+    {
+        gdk_threads_leave();

         return -1;
         return -1;

+    }
+
+    return 0;
+}
+
+int wxEntryInitGui()
+{
+    int retValue = 0;
+
+    if ( !wxTheApp->OnInitGui() )
+        retValue = -1;
+
+    wxRootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
+    gtk_widget_realize( wxRootWindow );
+
+    return retValue;
+}
+
+
+void wxEntryCleanup()
+{
+#if wxUSE_LOG
+    // flush the logged messages if any
+    wxLog *log = wxLog::GetActiveTarget();
+    if (log != NULL && log->HasPendingMessages())
+        log->Flush();
+
+    // continuing to use user defined log target is unsafe from now on because
+    // some resources may be already unavailable, so replace it by something
+    // more safe
+    wxLog *oldlog = wxLog::SetActiveTarget(new wxLogStderr);
+    if ( oldlog )
+        delete oldlog;
+#endif // wxUSE_LOG
+
+    wxApp::CleanUp();
+
+    gdk_threads_leave();
+}
+
+
+
+int wxEntry( int argc, char *argv[] )
+{
+#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
+    // This seems to be necessary since there are 'rogue'
+    // objects present at this point (perhaps global objects?)
+    // Setting a checkpoint will ignore them as far as the
+    // memory checking facility is concerned.
+    // Of course you may argue that memory allocated in globals should be
+    // checked, but this is a reasonable compromise.
+    wxDebugContext::SetCheckpoint();
+#endif
+    int err = wxEntryStart(argc, argv);
+    if (err)
+        return err;

 
     if (!wxTheApp)
     {
 
     if (!wxTheApp)
     {


@@ -690,9 +746,10 @@ int wxEntry( int argc, char *argv[] )
 #if wxUSE_UNICODE
     wxTheApp->argv = new wxChar*[argc+1];
     int mb_argc = 0;
 #if wxUSE_UNICODE
     wxTheApp->argv = new wxChar*[argc+1];
     int mb_argc = 0;

-    while (mb_argc < argc) {
-      wxTheApp->argv[mb_argc] = wxStrdup(wxConvLibc.cMB2WX(argv[mb_argc]));
-      mb_argc++;
+    while (mb_argc < argc)
+    {
+        wxTheApp->argv[mb_argc] = wxStrdup(wxConvLibc.cMB2WX(argv[mb_argc]));
+        mb_argc++;

     }
     wxTheApp->argv[mb_argc] = (wxChar *)NULL;
 #else
     }
     wxTheApp->argv[mb_argc] = (wxChar *)NULL;
 #else


@@ -703,10 +760,8 @@ int wxEntry( int argc, char *argv[] )
     wxStripExtension( name );
     wxTheApp->SetAppName( name );
 
     wxStripExtension( name );
     wxTheApp->SetAppName( name );
 

-    int retValue = 0;
-
-    if ( !wxTheApp->OnInitGui() )
-        retValue = -1;
+    int retValue;
+    retValue = wxEntryInitGui();

 
     // Here frames insert themselves automatically into wxTopLevelWindows by
     // getting created in OnInit().
 
     // Here frames insert themselves automatically into wxTopLevelWindows by
     // getting created in OnInit().


@@ -727,7 +782,7 @@ int wxEntry( int argc, char *argv[] )
 
         if (wxTheApp->Initialized())
         {
 
         if (wxTheApp->Initialized())
         {

-            retValue = wxTheApp->OnRun();
+            wxTheApp->OnRun();

 
             wxWindow *topWindow = wxTheApp->GetTopWindow();
             if (topWindow)
 
             wxWindow *topWindow = wxTheApp->GetTopWindow();
             if (topWindow)


@@ -745,25 +800,12 @@ int wxEntry( int argc, char *argv[] )
                     wxTheApp->SetTopWindow( (wxWindow*) NULL );
                 }
             }
                     wxTheApp->SetTopWindow( (wxWindow*) NULL );
                 }
             }

-            wxTheApp->OnExit();
+
+            retValue = wxTheApp->OnExit();

         }
     }
 
         }
     }
 

-#if wxUSE_LOG
-    // flush the logged messages if any
-    wxLog *log = wxLog::GetActiveTarget();
-    if (log != NULL && log->HasPendingMessages())
-        log->Flush();
-
-    // continuing to use user defined log target is unsafe from now on because
-    // some resources may be already unavailable, so replace it by something
-    // more safe
-    wxLog *oldlog = wxLog::SetActiveTarget(new wxLogStderr);
-    if ( oldlog )
-        delete oldlog;
-#endif // wxUSE_LOG
-
-    wxApp::CleanUp();
+    wxEntryCleanup();

 
     return retValue;
 }
 
     return retValue;
 }