fixed crash in wxRegion::Empty

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

diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp
index 5c08aad9d690859e9c8bf6a3146d8ecbc8b171da..bb01f6b87295551dd9ed0f2f618766003a1f2fbc 100644 (file)
--- a/src/gtk/app.cpp
+++ b/src/gtk/app.cpp
@@ -28,9 +28,11 @@
 #include "wx/module.h"
 #include "wx/image.h"
 
 #include "wx/module.h"
 #include "wx/image.h"
 

-#include "wx/thread.h"
+#if wxUSE_THREADS
+    #include "wx/thread.h"
+#endif

 
 

-#include "unistd.h"
+#include <unistd.h>

 
 #include <glib.h>
 #include <gdk/gdk.h>
 
 #include <glib.h>
 #include <gdk/gdk.h>


@@ -43,91 +45,30 @@
 //-----------------------------------------------------------------------------
 
 wxApp *wxTheApp = (wxApp *)  NULL;
 //-----------------------------------------------------------------------------
 
 wxApp *wxTheApp = (wxApp *)  NULL;

-wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL;
+wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;

 
 

-extern wxList wxPendingDelete;
-#if wxUSE_THREADS
-extern wxList *wxPendingEvents;
-extern wxCriticalSection *wxPendingEventsLocker;
-#endif
-extern wxResourceCache *wxTheResourceCache;
-
-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
-};
+extern bool g_isIdle;
+
+bool   g_mainThreadLocked = FALSE;
+gint   g_pendingTag = 0;
+
+static GtkWidget *gs_RootWindow = (GtkWidget*) NULL;

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

-extern void wxFlushResources(void);
+/* forward declaration */
+gint   wxapp_idle_callback( gpointer WXUNUSED(data) );
+gint   wxapp_pending_callback( gpointer WXUNUSED(data) );
+void   wxapp_install_idle_handler();
+
+#if wxUSE_THREADS
+gint   wxapp_wakeup_timerout_callback( gpointer WXUNUSED(data) );
+#endif

 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------

-// global functions
+// wxExit

 //-----------------------------------------------------------------------------
 
 void wxExit()
 //-----------------------------------------------------------------------------
 
 void wxExit()


@@ -135,108 +76,307 @@ void wxExit()
     gtk_main_quit();
 }
 
     gtk_main_quit();
 }
 

-// forward decl
-gint wxapp_idle_callback( gpointer WXUNUSED(data) );
+//-----------------------------------------------------------------------------
+// wxYield
+//-----------------------------------------------------------------------------
+
+static bool gs_inYield = FALSE;

 
 bool wxYield()
 {
 
 bool wxYield()
 {

-    // 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)
-    for ( wxWindowList::Node *node = wxTopLevelWindows.GetFirst();
-          node;
-          node = node->GetNext() )
+#if wxUSE_THREADS
+    if ( !wxThread::IsMain() )

     {
     {

-        wxWindow *win = node->GetData();
-        win->OnInternalIdle();
+        // can't call gtk_main_iteration() from other threads like this
+        return TRUE;

     }
     }

+#endif // wxUSE_THREADS
+
+#ifdef __WXDEBUG__
+    if (gs_inYield)
+        wxFAIL_MSG( wxT("wxYield called recursively" ) );
+#endif
+
+    gs_inYield = TRUE;

 
 

-    // We need to temporarily remove idle callbacks or the loop will
-    // never finish.
-    gtk_idle_remove( wxTheApp->m_idleTag );
+    if (!g_isIdle)
+    {
+        // We need to remove idle callbacks or the loop will
+        // never finish.
+        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();
 

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

     return TRUE;
 }
 
 //-----------------------------------------------------------------------------
     return TRUE;
 }
 
 //-----------------------------------------------------------------------------

-// wxApp
+// wxYieldIfNeeded
+// Like wxYield, but fails silently if the yield is recursive.

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
+bool wxYieldIfNeeded()
+{
+    if (gs_inYield)
+        return FALSE;

 
 

-BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
-    EVT_IDLE(wxApp::OnIdle)
-END_EVENT_TABLE()
+    return wxYield();
+}
+
+//-----------------------------------------------------------------------------
+// wxWakeUpIdle
+//-----------------------------------------------------------------------------
+
+void wxWakeUpIdle()
+{
+#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) )
 {
 
 gint wxapp_idle_callback( gpointer WXUNUSED(data) )
 {

-    if (wxTheApp)
+    if (!wxTheApp)
+        return TRUE;
+
+#ifdef __WXDEBUG__
+    if ( wxTheApp->IsInAssert() )

     {
     {

-        while (wxTheApp->ProcessIdle())
-        {
-        }
+        // 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();
     wxMutexGuiLeave();

-    wxUsleep(10);
+
+    g_mainThreadLocked = TRUE;
+
+    // wake up other threads
+    wxUsleep( 1 );
+
+    // block other thread again

     wxMutexGuiEnter();
 
     wxMutexGuiEnter();
 

+    g_mainThreadLocked = FALSE;
+
+    wxapp_install_thread_wakeup();
+
+    // release lock again
+    gdk_threads_leave();
+

     return TRUE;
 }
 
     return TRUE;
 }
 

+#endif // wxUSE_THREADS
+
+//-----------------------------------------------------------------------------
+// wxApp
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
+
+BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
+    EVT_IDLE(wxApp::OnIdle)
+END_EVENT_TABLE()
+

 wxApp::wxApp()
 {
 wxApp::wxApp()
 {

-    wxTheApp = this;
+    m_initialized = FALSE;
+#ifdef __WXDEBUG__
+    m_isInAssert = FALSE;
+#endif // __WXDEBUG__

 
 

-    m_topWindow = (wxWindow *) NULL;
-    m_exitOnFrameDelete = TRUE;
+    m_idleTag = 0;
+    wxapp_install_idle_handler();

 
 

-    m_idleTag = gtk_idle_add( wxapp_idle_callback, (gpointer) NULL );
+#if wxUSE_THREADS
+    m_wakeUpTimerTag = 0;
+    wxapp_install_thread_wakeup();
+#endif

 
     m_colorCube = (unsigned char*) NULL;
 }
 
 wxApp::~wxApp()
 {
 
     m_colorCube = (unsigned char*) NULL;
 }
 
 wxApp::~wxApp()
 {

-    gtk_idle_remove( m_idleTag );
+    if (m_idleTag) gtk_idle_remove( m_idleTag );
+
+#if wxUSE_THREADS
+    wxapp_uninstall_thread_wakeup();
+#endif

 
     if (m_colorCube) free(m_colorCube);
 }
 
 bool wxApp::OnInitGui()
 {
 
     if (m_colorCube) free(m_colorCube);
 }
 
 bool wxApp::OnInitGui()
 {

-    /* Nothing to do for 15, 16, 24, 32 bit displays */
+    if ( !wxAppBase::OnInitGui() )
+        return FALSE;

 
     GdkVisual *visual = gdk_visual_get_system();
 
     GdkVisual *visual = gdk_visual_get_system();

-    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... */
+    /* 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? */

 
 

-        /*
-        GdkColormap *cmap = gdk_colormap_new( gdk_visual_get_system(), TRUE );
+    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 );
+#endif

 
 

-        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;
+        GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
+        gtk_widget_set_default_colormap( colormap );

 
 

-            gdk_color_alloc( cmap, &col );
-        }
+        visual = vis;
+    }

 
 

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

 
     /* initialize color cube for 8-bit color reduction dithering */
 
 
     /* initialize color cube for 8-bit color reduction dithering */
 


@@ -244,8 +384,8 @@ bool wxApp::OnInitGui()
 
     m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
 
 
     m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
 

-     for (int r = 0; r < 32; r++)
-     {
+    for (int r = 0; r < 32; r++)
+    {

         for (int g = 0; g < 32; g++)
         {
             for (int b = 0; b < 32; b++)
         for (int g = 0; g < 32; g++)
         {
             for (int b = 0; b < 32; b++)


@@ -254,25 +394,43 @@ bool wxApp::OnInitGui()
                 int gg = (g << 3) | (g >> 2);
                 int bb = (b << 3) | (b >> 2);
 
                 int gg = (g << 3) | (g >> 2);
                 int bb = (b << 3) | (b >> 2);
 

-                GdkColor *colors = cmap->colors;
-                int max = 3 * (65536);

                 int index = -1;
 
                 int index = -1;
 

-                for (int i = 0; i < cmap->size; i++)
+                GdkColor *colors = cmap->colors;
+                if (colors)

                 {
                 {

-                    int rdiff = ((rr << 8) - colors[i].red);
-                    int gdiff = ((gg << 8)- colors[i].green);
-                    int bdiff = ((bb << 8)- colors[i].blue);
-                    int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
-                    if (sum < max) { index = i; max = sum; }
+                    int max = 3 * 65536;
+
+                    for (int i = 0; i < cmap->size; i++)
+                    {
+                        int rdiff = ((rr << 8) - colors[i].red);
+                        int gdiff = ((gg << 8) - colors[i].green);
+                        int bdiff = ((bb << 8) - colors[i].blue);
+                        int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
+                        if (sum < max)
+                        {
+                            index = i; max = sum;
+                        }
+                    }
+                }
+                else
+                {
+#if (GTK_MINOR_VERSION > 0)
+                    /* assume 8-bit true or static colors. this really
+                       exists. */
+                    GdkVisual* vis = gdk_colormap_get_visual( cmap );
+                    index = (r >> (5 - vis->red_prec)) << vis->red_shift;
+                    index |= (g >> (5 - vis->green_prec)) << vis->green_shift;
+                    index |= (b >> (5 - vis->blue_prec)) << vis->blue_shift;
+#else
+                    wxFAIL_MSG( wxT("Unsupported graphics hardware") );
+#endif

                 }
                 }

-

                 m_colorCube[ (r*1024) + (g*32) + b ] = index;
             }
         }
     }
 
                 m_colorCube[ (r*1024) + (g*32) + b ] = index;
             }
         }
     }
 

-

     return TRUE;
 }
 
     return TRUE;
 }
 


@@ -287,35 +445,28 @@ bool wxApp::ProcessIdle()
 
 void wxApp::OnIdle( wxIdleEvent &event )
 {
 
 void wxApp::OnIdle( wxIdleEvent &event )
 {

-    static bool inOnIdle = FALSE;
+    static bool s_inOnIdle = FALSE;

 
     /* Avoid recursion (via ProcessEvent default case) */
 
     /* Avoid recursion (via ProcessEvent default case) */

-    if (inOnIdle)
+    if (s_inOnIdle)

         return;
 
         return;
 

-    inOnIdle = TRUE;
+    s_inOnIdle = TRUE;

 
 

-#if wxUSE_THREADS

     /* Resend in the main thread events which have been prepared in other
        threads */
     ProcessPendingEvents();
     /* Resend in the main thread events which have been prepared in other
        threads */
     ProcessPendingEvents();

-#endif

 
     /* 'Garbage' collection of windows deleted with Close(). */
     DeletePendingObjects();
 
 
     /* 'Garbage' collection of windows deleted with Close(). */
     DeletePendingObjects();
 

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

     /* Send OnIdle events to all windows */
     bool needMore = SendIdleEvents();
 
     if (needMore)
         event.RequestMore(TRUE);
 
     /* Send OnIdle events to all windows */
     bool needMore = SendIdleEvents();
 
     if (needMore)
         event.RequestMore(TRUE);
 

-    inOnIdle = FALSE;
+    s_inOnIdle = FALSE;

 }
 
 bool wxApp::SendIdleEvents()
 }
 
 bool wxApp::SendIdleEvents()


@@ -341,9 +492,9 @@ bool wxApp::SendIdleEvents( wxWindow* win )
     wxIdleEvent event;
     event.SetEventObject(win);
 
     wxIdleEvent event;
     event.SetEventObject(win);
 

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

 
 

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

 
     if (event.MoreRequested())
         needMore = TRUE;
 
     if (event.MoreRequested())
         needMore = TRUE;


@@ -368,7 +519,8 @@ 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()


@@ -378,7 +530,7 @@ bool wxApp::Initialized()
 
 bool wxApp::Pending()
 {
 
 bool wxApp::Pending()
 {

-    return gtk_events_pending();
+    return (gtk_events_pending() > 0);

 }
 
 void wxApp::Dispatch()
 }
 
 void wxApp::Dispatch()


@@ -386,25 +538,6 @@ void wxApp::Dispatch()
     gtk_main_iteration();
 }
 
     gtk_main_iteration();
 }
 

-#if wxUSE_THREADS
-void wxApp::ProcessPendingEvents()
-{
-    wxNode *node = wxPendingEvents->First();
-    wxCriticalSectionLocker locker(*wxPendingEventsLocker);
-
-    while (node)
-    {
-        wxEvtHandler *handler = (wxEvtHandler *)node->Data();
-
-        handler->ProcessPendingEvents();
-
-        delete node;
-
-        node = wxPendingEvents->First();
-    }
-}
-#endif // wxUSE_THREADS
-

 void wxApp::DeletePendingObjects()
 {
     wxNode *node = wxPendingDelete.First();
 void wxApp::DeletePendingObjects()
 {
     wxNode *node = wxPendingDelete.First();


@@ -414,28 +547,13 @@ void wxApp::DeletePendingObjects()
 
         delete obj;
 
 
         delete obj;
 

-        if (wxPendingDelete.Member(obj))
-        delete node;
+        if (wxPendingDelete.Find(obj))
+            delete node;

 
         node = wxPendingDelete.First();
     }
 }
 
 
         node = wxPendingDelete.First();
     }
 }
 

-wxWindow *wxApp::GetTopWindow()
-{
-    if (m_topWindow)
-        return m_topWindow;
-    else if (wxTopLevelWindows.GetCount() > 0)
-        return wxTopLevelWindows.GetFirst()->GetData();
-    else
-        return NULL;
-}
-
-void wxApp::SetTopWindow( wxWindow *win )
-{
-    m_topWindow = win;
-}
-

 bool wxApp::Initialize()
 {
     wxBuffer = new wxChar[BUFSIZ + 512];
 bool wxApp::Initialize()
 {
     wxBuffer = new wxChar[BUFSIZ + 512];


@@ -443,6 +561,10 @@ bool wxApp::Initialize()
     wxClassInfo::InitializeClasses();
 
     wxSystemSettings::Init();
     wxClassInfo::InitializeClasses();
 
     wxSystemSettings::Init();

+    
+#if wxUSE_INTL
+    wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
+#endif

 
     // GL: I'm annoyed ... I don't know where to put this and I don't want to
     // create a module for that as it's part of the core.
 
     // GL: I'm annoyed ... I don't know where to put this and I don't want to
     // create a module for that as it's part of the core.


@@ -451,11 +573,6 @@ 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();
 


@@ -463,16 +580,9 @@ bool wxApp::Initialize()
     wxInitializeStockObjects();
 
 #if wxUSE_WX_RESOURCES
     wxInitializeStockObjects();
 
 #if wxUSE_WX_RESOURCES

-    wxTheResourceCache = new wxResourceCache( wxKEY_STRING );
-

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

-    wxImage::InitStandardHandlers();
-
-    /* no global cursor under X
-       g_globalCursor = new wxCursor; */
-

     wxModule::RegisterModules();
     if (!wxModule::InitializeModules()) return FALSE;
 
     wxModule::RegisterModules();
     if (!wxModule::InitializeModules()) return FALSE;
 


@@ -484,30 +594,18 @@ 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();
 
     wxDeleteStockLists();
 
 
     wxDeleteStockObjects();
 
     wxDeleteStockLists();
 

-    wxImage::CleanUpHandlers();
-

     delete wxTheApp;
     wxTheApp = (wxApp*) NULL;
 
     delete wxTheApp;
     wxTheApp = (wxApp*) NULL;
 


@@ -526,44 +624,143 @@ 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(_T("There were memory leaks.\n"));
+        wxLogDebug(wxT("There were memory leaks.\n"));

         wxDebugContext::Dump();
         wxDebugContext::PrintStatistics();
     }
 #endif // Debug
 
         wxDebugContext::Dump();
         wxDebugContext::PrintStatistics();
     }
 #endif // Debug
 

+#if wxUSE_LOG

     // do this as the very last thing because everything else can log messages
     wxLog::DontCreateOnDemand();
 
     wxLog *oldLog = wxLog::SetActiveTarget( (wxLog*) NULL );
     if (oldLog)
         delete oldLog;
     // do this as the very last thing because everything else can log messages
     wxLog::DontCreateOnDemand();
 
     wxLog *oldLog = wxLog::SetActiveTarget( (wxLog*) NULL );
     if (oldLog)
         delete oldLog;

+#endif // wxUSE_LOG

 }
 
 }
 

-wxLog *wxApp::CreateLogTarget()
+//-----------------------------------------------------------------------------
+// Access to the root window global
+//-----------------------------------------------------------------------------
+
+GtkWidget* wxGetRootWindow()

 {
 {

-    return new wxLogGui;
+    if (gs_RootWindow == NULL) {
+        gs_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
+        gtk_widget_realize( gs_RootWindow );
+    }
+    return gs_RootWindow;

 }
 
 //-----------------------------------------------------------------------------
 // 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 defined(__WXGTK20__)
+    // gtk+ 2.0 supports Unicode through UTF-8 strings
+    wxConvCurrent = &wxConvUTF8;
+#else
+    if (!wxOKlibc()) wxConvCurrent = &wxConvLocal;
+#endif
+#else
+    if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL;
+#endif
+
+    gdk_threads_enter();
+

     gtk_init( &argc, &argv );
 
     gtk_init( &argc, &argv );
 

+    wxSetDetectableAutoRepeat( TRUE );
+

     if (!wxApp::Initialize())
     if (!wxApp::Initialize())

+    {
+        gdk_threads_leave();

         return -1;
         return -1;

+    }
+
+    return 0;
+}
+
+
+int wxEntryInitGui()
+{
+    int retValue = 0;
+
+    if ( !wxTheApp->OnInitGui() )
+        retValue = -1;
+
+    wxGetRootWindow();
+
+    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)
     {
         wxCHECK_MSG( wxApp::GetInitializerFunction(), -1,
 
     if (!wxTheApp)
     {
         wxCHECK_MSG( wxApp::GetInitializerFunction(), -1,

-                     _T("wxWindows error: No initializer - use IMPLEMENT_APP macro.\n") );
+                     wxT("wxWindows error: No initializer - use IMPLEMENT_APP macro.\n") );

 
         wxAppInitializerFunction app_ini = wxApp::GetInitializerFunction();
 
 
         wxAppInitializerFunction app_ini = wxApp::GetInitializerFunction();
 


@@ -572,63 +769,114 @@ int wxEntry( int argc, char *argv[] )
         wxTheApp = (wxApp*) test_app;
     }
 
         wxTheApp = (wxApp*) test_app;
     }
 

-    wxCHECK_MSG( wxTheApp, -1, _T("wxWindows error: no application object") );
+    wxCHECK_MSG( wxTheApp, -1, wxT("wxWindows error: no application object") );

 
     wxTheApp->argc = argc;
 
     wxTheApp->argc = argc;

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

     wxTheApp->argv = argv;
     wxTheApp->argv = argv;

+#endif

 
     wxString name(wxFileNameFromPath(argv[0]));
     wxStripExtension( name );
     wxTheApp->SetAppName( name );
 
 
     wxString name(wxFileNameFromPath(argv[0]));
     wxStripExtension( name );
     wxTheApp->SetAppName( name );
 

-    if (!wxTheApp->OnInitGui())
-        return 0;
+    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().

-    if (!wxTheApp->OnInit())
-        return 0;
-
-    wxTheApp->m_initialized = wxTopLevelWindows.GetCount() != 0;
+    if ( retValue == 0 )
+    {
+        if ( !wxTheApp->OnInit() )
+            retValue = -1;
+    }

 
 

-    int retValue = 0;
+    if ( retValue == 0 )
+    {
+        /* delete pending toplevel windows (typically a single
+           dialog) so that, if there isn't any left, we don't
+           call OnRun() */
+        wxTheApp->DeletePendingObjects();

 
 

-    if (wxTheApp->Initialized())
-        retValue = wxTheApp->OnRun();
+        wxTheApp->m_initialized = wxTopLevelWindows.GetCount() != 0;

 
 

-    wxWindow *topWindow = wxTheApp->GetTopWindow();
-    if (topWindow)
-    {
-        // Forcibly delete the window.
-        if (topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
-            topWindow->IsKindOf(CLASSINFO(wxDialog)) )
+        if (wxTheApp->Initialized())

         {
         {

-            topWindow->Close( TRUE );
-            wxTheApp->DeletePendingObjects();
-        }
-        else
-        {
-            delete topWindow;
-            wxTheApp->SetTopWindow( (wxWindow*) NULL );
+            wxTheApp->OnRun();
+
+            wxWindow *topWindow = wxTheApp->GetTopWindow();
+            if (topWindow)
+            {
+                /* Forcibly delete the window. */
+                if (topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
+                    topWindow->IsKindOf(CLASSINFO(wxDialog)) )
+                {
+                    topWindow->Close( TRUE );
+                    wxTheApp->DeletePendingObjects();
+                }
+                else
+                {
+                    delete topWindow;
+                    wxTheApp->SetTopWindow( (wxWindow*) NULL );
+                }
+            }
+
+            retValue = wxTheApp->OnExit();

         }
     }
 
         }
     }
 

-    wxTheApp->OnExit();
+    wxEntryCleanup();

 
 

-    // flush the logged messages if any
-    wxLog *log = wxLog::GetActiveTarget();
-    if (log != NULL && log->HasPendingMessages())
-        log->Flush();
+    return retValue;
+}

 
 

-    // 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;
+#include "wx/gtk/info.xpm"
+#include "wx/gtk/error.xpm"
+#include "wx/gtk/question.xpm"
+#include "wx/gtk/warning.xpm"

 
 

-    wxApp::CleanUp();
+wxIcon
+wxApp::GetStdIcon(int which) const
+{
+    switch(which)
+    {
+        case wxICON_INFORMATION:
+            return wxIcon(info_xpm);

 
 

-    return retValue;
+        case wxICON_QUESTION:
+            return wxIcon(question_xpm);
+
+        case wxICON_EXCLAMATION:
+            return wxIcon(warning_xpm);
+
+        default:
+            wxFAIL_MSG(wxT("requested non existent standard icon"));
+            // still fall through
+
+        case wxICON_HAND:
+            return wxIcon(error_xpm);
+    }
+}
+
+#ifdef __WXDEBUG__
+
+void wxApp::OnAssert(const wxChar *file, int line, const wxChar *msg)
+{
+    m_isInAssert = TRUE;
+
+    wxAppBase::OnAssert(file, line, msg);
+
+    m_isInAssert = FALSE;

 }
 
 }
 

+#endif // __WXDEBUG__
+