Small oops in redrawing code.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6598 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/gtk/win_gtk.h b/include/wx/gtk/win_gtk.h
index afede32a492d034ab2a054c08089836ce6cc092c..b3c92cec54bc92993ecaf55474b71992dc811ec3 100644 (file)
--- a/include/wx/gtk/win_gtk.h
+++ b/include/wx/gtk/win_gtk.h
@@ -67,6 +67,7 @@ struct _GtkPizza
   
     gboolean clear_on_draw;
     gboolean use_filter;
+    gboolean external_expose;
 };
 
 struct _GtkPizzaClass
@@ -90,6 +91,9 @@ void       gtk_pizza_set_clear       (GtkPizza          *pizza,
 void       gtk_pizza_set_filter      (GtkPizza          *pizza,
                                       gboolean           use);         
                                        
+void       gtk_pizza_set_external    (GtkPizza          *pizza,
+                                      gboolean           expose);              
+                                       
 void       gtk_pizza_scroll          (GtkPizza          *pizza,        
                                       gint               dx,
                                       gint               dy);

diff --git a/include/wx/gtk1/win_gtk.h b/include/wx/gtk1/win_gtk.h
index afede32a492d034ab2a054c08089836ce6cc092c..b3c92cec54bc92993ecaf55474b71992dc811ec3 100644 (file)
--- a/include/wx/gtk1/win_gtk.h
+++ b/include/wx/gtk1/win_gtk.h
@@ -67,6 +67,7 @@ struct _GtkPizza
   
     gboolean clear_on_draw;
     gboolean use_filter;
+    gboolean external_expose;
 };
 
 struct _GtkPizzaClass
@@ -90,6 +91,9 @@ void       gtk_pizza_set_clear       (GtkPizza          *pizza,
 void       gtk_pizza_set_filter      (GtkPizza          *pizza,
                                       gboolean           use);         
                                        
+void       gtk_pizza_set_external    (GtkPizza          *pizza,
+                                      gboolean           expose);              
+                                       
 void       gtk_pizza_scroll          (GtkPizza          *pizza,        
                                       gint               dx,
                                       gint               dy);

diff --git a/src/gtk/win_gtk.c b/src/gtk/win_gtk.c
index 7d5f7a92ad3deac7430eae83d4d4fc468712190b..4d925f373c2dcba11ba458f4d0dcccf74cbbc8a3 100644 (file)
--- a/src/gtk/win_gtk.c
+++ b/src/gtk/win_gtk.c
@@ -191,6 +191,7 @@ gtk_pizza_init (GtkPizza *pizza)
 
     pizza->clear_on_draw = TRUE;
     pizza->use_filter = TRUE;
+    pizza->external_expose = FALSE;
 }
 
 GtkWidget*
@@ -250,6 +251,16 @@ gtk_pizza_set_filter (GtkPizza  *pizza,
     pizza->use_filter = use;
 }      
                                        
+void       
+gtk_pizza_set_external (GtkPizza  *pizza,
+                        gboolean   expose)
+{
+    g_return_if_fail (pizza != NULL);
+    g_return_if_fail (GTK_IS_PIZZA (pizza));
+
+    pizza->external_expose = expose;
+}
+
 void
 gtk_pizza_put (GtkPizza   *pizza,
                GtkWidget  *widget,
@@ -652,16 +663,77 @@ static void
 gtk_pizza_draw (GtkWidget    *widget,
                 GdkRectangle *area)
 {
-    /* We handle all draws events in window.cpp now. */
-    return;
+    GtkPizza *pizza;
+    GtkPizzaChild *child;
+    GdkRectangle child_area;
+    GList *children;
+
+    g_return_if_fail (widget != NULL);
+    g_return_if_fail (GTK_IS_PIZZA (widget));
+
+    pizza = GTK_PIZZA (widget);
+
+    /* Sometimes, We handle all expose events in window.cpp now. */
+    if (pizza->external_expose)
+        return;
+
+    children = pizza->children;
+    if ( !(GTK_WIDGET_APP_PAINTABLE (widget)) &&
+         (pizza->clear_on_draw))
+    {
+        gdk_window_clear_area( pizza->bin_window,
+                                area->x, area->y, area->width, area->height);
+    }
+
+    while (children)
+    {
+        child = children->data;
+        children = children->next;
+
+        if (gtk_widget_intersect (child->widget, area, &child_area))
+            gtk_widget_draw (child->widget, &child_area);
+    }
 }
 
 static gint
 gtk_pizza_expose (GtkWidget      *widget,
                   GdkEventExpose *event)
 {
-    /* We handle all expose events in window.cpp now. */
-    return FALSE;
+    GtkPizza *pizza;
+    GtkPizzaChild *child;
+    GdkEventExpose child_event;
+    GList *children;
+
+    g_return_val_if_fail (widget != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_PIZZA (widget), FALSE);
+    g_return_val_if_fail (event != NULL, FALSE);
+
+    pizza = GTK_PIZZA (widget);
+
+    /* Sometimes, We handle all expose events in window.cpp now. */
+    if (pizza->external_expose)
+        return;
+
+    if (event->window != pizza->bin_window)
+        return FALSE;
+
+    children = pizza->children;
+    while (children)
+    {
+        child = children->data;
+        children = children->next;
+
+        child_event = *event;
+
+        if (GTK_WIDGET_NO_WINDOW (child->widget) &&
+            GTK_WIDGET_DRAWABLE (child->widget) &&
+            gtk_widget_intersect (child->widget, &event->area, &child_event.area))
+        {
+            gtk_widget_event (child->widget, (GdkEvent*) &child_event);
+        }
+    }
+    
+    return TRUE;
 }
 
 static void

diff --git a/src/gtk/window.cpp b/src/gtk/window.cpp
index 78bb5fea4f217bbae69f1fc791aac84281d9b887..769973db09f18af322b94945c1903f87135f5e61 100644 (file)
--- a/src/gtk/window.cpp
+++ b/src/gtk/window.cpp
@@ -620,9 +620,6 @@ static int gtk_window_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_ev
     if (g_isIdle)
         wxapp_install_idle_handler();
         
-    if (win->m_queuedFullRedraw)
-        return TRUE;
-
 /*
     if (win->GetName() == wxT("htmlWindow"))
     {
@@ -636,48 +633,52 @@ static int gtk_window_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_ev
     }
 */
                                 
-    win->GetUpdateRegion().Union( gdk_event->area.x,
-                                  gdk_event->area.y,
-                                  gdk_event->area.width,
-                                  gdk_event->area.height );
-
+    if (!win->m_queuedFullRedraw)
+    {
 
-    if (gdk_event->count > 0)
-        return TRUE;
+        win->GetUpdateRegion().Union( gdk_event->area.x,
+                                      gdk_event->area.y,
+                                      gdk_event->area.width,
+                                      gdk_event->area.height );
 
-    wxEraseEvent eevent( win->GetId() );
-    eevent.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent(eevent);
+        if (gdk_event->count == 0)
+        {
+            wxEraseEvent eevent( win->GetId() );
+            eevent.SetEventObject( win );
+            win->GetEventHandler()->ProcessEvent(eevent);
 
-    wxPaintEvent event( win->GetId() );
-    event.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent( event );
+            wxPaintEvent event( win->GetId() );
+            event.SetEventObject( win );
+            win->GetEventHandler()->ProcessEvent( event );
 
-    win->GetUpdateRegion().Clear();
+            win->GetUpdateRegion().Clear();
+        }
     
-    /* The following code will result in all window-less widgets
-       being redrawn if the wxWindows class is given a chance to
-       paint *anything* because it will then be allowed to paint
-       over the window-less widgets */
+        /* The following code will result in all window-less widgets
+           being redrawn if the wxWindows class is given a chance to
+           paint *anything* because it will then be allowed to paint
+           over the window-less widgets */
        
-    GtkPizza *pizza = GTK_PIZZA (widget);
+        GtkPizza *pizza = GTK_PIZZA (widget);
         
-    GList *children = pizza->children;
-    while (children)
-    {
-        GtkPizzaChild *child = (GtkPizzaChild*) children->data;
-        children = children->next;
+        GList *children = pizza->children;
+        while (children)
+        {
+            GtkPizzaChild *child = (GtkPizzaChild*) children->data;
+            children = children->next;
 
-        GdkEventExpose child_event = *gdk_event;
+            GdkEventExpose child_event = *gdk_event;
 
-        if (GTK_WIDGET_NO_WINDOW (child->widget) &&
-            GTK_WIDGET_DRAWABLE (child->widget))
-        {
-            child_event.area.x = child->widget->allocation.x;
-            child_event.area.y = child->widget->allocation.y;
-            child_event.area.width = child->widget->allocation.width;
-            child_event.area.height = child->widget->allocation.height;
-            gtk_widget_event (child->widget, (GdkEvent*) &child_event);
+            if (GTK_WIDGET_NO_WINDOW (child->widget) &&
+                GTK_WIDGET_DRAWABLE (child->widget) /* &&
+                gtk_widget_intersect (child->widget, &gdk_event->area, &child_event.area)*/ )
+            {
+                child_event.area.x = child->widget->allocation.x;
+                child_event.area.y = child->widget->allocation.y;
+                child_event.area.width = child->widget->allocation.width;
+                child_event.area.height = child->widget->allocation.height;
+                gtk_widget_event (child->widget, (GdkEvent*) &child_event);
+            }
         }
     }
         
@@ -690,8 +691,9 @@ static int gtk_window_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_ev
 
 /* GTK thinks it is clever and filters out a certain amount of "unneeded"
    expose events. We need them, of course, so we override the main event
-   procedure in GtkWidget by giving our own handler for all system events,
-   looking for the expose events and then we can always send them. */
+   procedure in GtkWidget by giving our own handler for all system events.
+   There, we look for expose events ourselves whereas all other events are
+   handled normally. */
 
 gint gtk_window_event_event_callback( GtkWidget *widget, GdkEventExpose *event, wxWindow *win )
 {
@@ -701,7 +703,6 @@ gint gtk_window_event_event_callback( GtkWidget *widget, GdkEventExpose *event,
         return ret;
     }
 
-    
     return FALSE;
 }
 
@@ -719,18 +720,6 @@ static void gtk_window_draw_callback( GtkWidget *widget, GdkRectangle *rect, wxW
     if (g_isIdle)
         wxapp_install_idle_handler();
         
-    if (win->m_queuedFullRedraw)
-        return;
-
-    GtkPizza *pizza = GTK_PIZZA (widget);
-        
-    if ( !(GTK_WIDGET_APP_PAINTABLE (widget)) &&
-         (pizza->clear_on_draw))
-    {
-        gdk_window_clear_area( pizza->bin_window,
-                               rect->x, rect->y, rect->width, rect->height);
-    }
-    
 /*
     if (win->GetName() == wxT("htmlWindow"))
     {
@@ -744,33 +733,45 @@ static void gtk_window_draw_callback( GtkWidget *widget, GdkRectangle *rect, wxW
     }
 */
    
-    win->GetUpdateRegion().Union( rect->x, rect->y,
-                                  rect->width, rect->height );
+    GtkPizza *pizza = GTK_PIZZA (widget);
+        
+    if (!win->m_queuedFullRedraw)
+    {
+        if (!(GTK_WIDGET_APP_PAINTABLE (widget)) &&
+             (pizza->clear_on_draw))
+        {
+            gdk_window_clear_area( pizza->bin_window,
+                               rect->x, rect->y, rect->width, rect->height);
+        }
+    
+        win->GetUpdateRegion().Union( rect->x, rect->y, rect->width, rect->height );
 
-    win->m_clipPaintRegion = TRUE;
+        win->m_clipPaintRegion = TRUE;
     
-    wxEraseEvent eevent( win->GetId() );
-    eevent.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent(eevent);
+        wxEraseEvent eevent( win->GetId() );
+        eevent.SetEventObject( win );
+        win->GetEventHandler()->ProcessEvent(eevent);
 
-    wxPaintEvent event( win->GetId() );
-    event.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent( event );
+        wxPaintEvent event( win->GetId() );
+        event.SetEventObject( win );
+        win->GetEventHandler()->ProcessEvent( event );
 
-    win->GetUpdateRegion().Clear();
+        win->GetUpdateRegion().Clear();
     
-    win->m_clipPaintRegion = FALSE;
+        win->m_clipPaintRegion = FALSE;
     
-    GList *children = pizza->children;
-    while (children)
-    {
-        GtkPizzaChild *child = (GtkPizzaChild*) children->data;
-        children = children->next;
-
-        GdkRectangle child_area;
-        if (gtk_widget_intersect (child->widget, rect, &child_area))
+    
+        GList *children = pizza->children;
+        while (children)
         {
-            gtk_widget_draw (child->widget, &child_area /* (GdkRectangle*) NULL*/ );
+            GtkPizzaChild *child = (GtkPizzaChild*) children->data;
+            children = children->next;
+
+            GdkRectangle child_area;
+            if (gtk_widget_intersect (child->widget, rect, &child_area))
+            {
+                gtk_widget_draw (child->widget, &child_area /* (GdkRectangle*) NULL*/ );
+            }
         }
     }
 }
@@ -1921,8 +1922,8 @@ gtk_wxwindow_realized_callback( GtkWidget * WXUNUSED_UNLESS_XIM(widget),
     if ((colormap = gtk_widget_get_colormap (widget)) !=
            gtk_widget_get_default_colormap ())
     {
-       attrmask |= GDK_IC_PREEDIT_COLORMAP;
-       attr->preedit_colormap = colormap;
+           attrmask |= GDK_IC_PREEDIT_COLORMAP;
+           attr->preedit_colormap = colormap;
     }
 
     attrmask |= GDK_IC_PREEDIT_FOREGROUND;
@@ -2291,6 +2292,9 @@ void wxWindow::PostCreation()
         if (!m_noExpose)
         {
             /* these get reported to wxWindows -> wxPaintEvent */
+            
+            gtk_pizza_set_external( GTK_PIZZA(m_wxwindow), TRUE );
+
             gtk_signal_connect( GTK_OBJECT(m_wxwindow), "event",
                 GTK_SIGNAL_FUNC(gtk_window_event_event_callback), (gpointer)this );
 
@@ -2573,7 +2577,7 @@ void wxWindow::OnInternalIdle()
             m_updateRegion.Clear();
             m_updateRegion.Union( 0,0,m_width,m_height );
             gtk_widget_draw( m_wxwindow, (GdkRectangle*) NULL );
-            
+
             GdkEventMask mask = gdk_window_get_events( GTK_PIZZA(m_wxwindow)->bin_window );
             mask = (GdkEventMask)(mask | GDK_EXPOSURE_MASK);
             gdk_window_set_events( GTK_PIZZA(m_wxwindow)->bin_window, mask );

diff --git a/src/gtk1/win_gtk.c b/src/gtk1/win_gtk.c
index 7d5f7a92ad3deac7430eae83d4d4fc468712190b..4d925f373c2dcba11ba458f4d0dcccf74cbbc8a3 100644 (file)
--- a/src/gtk1/win_gtk.c
+++ b/src/gtk1/win_gtk.c
@@ -191,6 +191,7 @@ gtk_pizza_init (GtkPizza *pizza)
 
     pizza->clear_on_draw = TRUE;
     pizza->use_filter = TRUE;
+    pizza->external_expose = FALSE;
 }
 
 GtkWidget*
@@ -250,6 +251,16 @@ gtk_pizza_set_filter (GtkPizza  *pizza,
     pizza->use_filter = use;
 }      
                                        
+void       
+gtk_pizza_set_external (GtkPizza  *pizza,
+                        gboolean   expose)
+{
+    g_return_if_fail (pizza != NULL);
+    g_return_if_fail (GTK_IS_PIZZA (pizza));
+
+    pizza->external_expose = expose;
+}
+
 void
 gtk_pizza_put (GtkPizza   *pizza,
                GtkWidget  *widget,
@@ -652,16 +663,77 @@ static void
 gtk_pizza_draw (GtkWidget    *widget,
                 GdkRectangle *area)
 {
-    /* We handle all draws events in window.cpp now. */
-    return;
+    GtkPizza *pizza;
+    GtkPizzaChild *child;
+    GdkRectangle child_area;
+    GList *children;
+
+    g_return_if_fail (widget != NULL);
+    g_return_if_fail (GTK_IS_PIZZA (widget));
+
+    pizza = GTK_PIZZA (widget);
+
+    /* Sometimes, We handle all expose events in window.cpp now. */
+    if (pizza->external_expose)
+        return;
+
+    children = pizza->children;
+    if ( !(GTK_WIDGET_APP_PAINTABLE (widget)) &&
+         (pizza->clear_on_draw))
+    {
+        gdk_window_clear_area( pizza->bin_window,
+                                area->x, area->y, area->width, area->height);
+    }
+
+    while (children)
+    {
+        child = children->data;
+        children = children->next;
+
+        if (gtk_widget_intersect (child->widget, area, &child_area))
+            gtk_widget_draw (child->widget, &child_area);
+    }
 }
 
 static gint
 gtk_pizza_expose (GtkWidget      *widget,
                   GdkEventExpose *event)
 {
-    /* We handle all expose events in window.cpp now. */
-    return FALSE;
+    GtkPizza *pizza;
+    GtkPizzaChild *child;
+    GdkEventExpose child_event;
+    GList *children;
+
+    g_return_val_if_fail (widget != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_PIZZA (widget), FALSE);
+    g_return_val_if_fail (event != NULL, FALSE);
+
+    pizza = GTK_PIZZA (widget);
+
+    /* Sometimes, We handle all expose events in window.cpp now. */
+    if (pizza->external_expose)
+        return;
+
+    if (event->window != pizza->bin_window)
+        return FALSE;
+
+    children = pizza->children;
+    while (children)
+    {
+        child = children->data;
+        children = children->next;
+
+        child_event = *event;
+
+        if (GTK_WIDGET_NO_WINDOW (child->widget) &&
+            GTK_WIDGET_DRAWABLE (child->widget) &&
+            gtk_widget_intersect (child->widget, &event->area, &child_event.area))
+        {
+            gtk_widget_event (child->widget, (GdkEvent*) &child_event);
+        }
+    }
+    
+    return TRUE;
 }
 
 static void

diff --git a/src/gtk1/window.cpp b/src/gtk1/window.cpp
index 78bb5fea4f217bbae69f1fc791aac84281d9b887..769973db09f18af322b94945c1903f87135f5e61 100644 (file)
--- a/src/gtk1/window.cpp
+++ b/src/gtk1/window.cpp
@@ -620,9 +620,6 @@ static int gtk_window_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_ev
     if (g_isIdle)
         wxapp_install_idle_handler();
         
-    if (win->m_queuedFullRedraw)
-        return TRUE;
-
 /*
     if (win->GetName() == wxT("htmlWindow"))
     {
@@ -636,48 +633,52 @@ static int gtk_window_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_ev
     }
 */
                                 
-    win->GetUpdateRegion().Union( gdk_event->area.x,
-                                  gdk_event->area.y,
-                                  gdk_event->area.width,
-                                  gdk_event->area.height );
-
+    if (!win->m_queuedFullRedraw)
+    {
 
-    if (gdk_event->count > 0)
-        return TRUE;
+        win->GetUpdateRegion().Union( gdk_event->area.x,
+                                      gdk_event->area.y,
+                                      gdk_event->area.width,
+                                      gdk_event->area.height );
 
-    wxEraseEvent eevent( win->GetId() );
-    eevent.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent(eevent);
+        if (gdk_event->count == 0)
+        {
+            wxEraseEvent eevent( win->GetId() );
+            eevent.SetEventObject( win );
+            win->GetEventHandler()->ProcessEvent(eevent);
 
-    wxPaintEvent event( win->GetId() );
-    event.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent( event );
+            wxPaintEvent event( win->GetId() );
+            event.SetEventObject( win );
+            win->GetEventHandler()->ProcessEvent( event );
 
-    win->GetUpdateRegion().Clear();
+            win->GetUpdateRegion().Clear();
+        }
     
-    /* The following code will result in all window-less widgets
-       being redrawn if the wxWindows class is given a chance to
-       paint *anything* because it will then be allowed to paint
-       over the window-less widgets */
+        /* The following code will result in all window-less widgets
+           being redrawn if the wxWindows class is given a chance to
+           paint *anything* because it will then be allowed to paint
+           over the window-less widgets */
        
-    GtkPizza *pizza = GTK_PIZZA (widget);
+        GtkPizza *pizza = GTK_PIZZA (widget);
         
-    GList *children = pizza->children;
-    while (children)
-    {
-        GtkPizzaChild *child = (GtkPizzaChild*) children->data;
-        children = children->next;
+        GList *children = pizza->children;
+        while (children)
+        {
+            GtkPizzaChild *child = (GtkPizzaChild*) children->data;
+            children = children->next;
 
-        GdkEventExpose child_event = *gdk_event;
+            GdkEventExpose child_event = *gdk_event;
 
-        if (GTK_WIDGET_NO_WINDOW (child->widget) &&
-            GTK_WIDGET_DRAWABLE (child->widget))
-        {
-            child_event.area.x = child->widget->allocation.x;
-            child_event.area.y = child->widget->allocation.y;
-            child_event.area.width = child->widget->allocation.width;
-            child_event.area.height = child->widget->allocation.height;
-            gtk_widget_event (child->widget, (GdkEvent*) &child_event);
+            if (GTK_WIDGET_NO_WINDOW (child->widget) &&
+                GTK_WIDGET_DRAWABLE (child->widget) /* &&
+                gtk_widget_intersect (child->widget, &gdk_event->area, &child_event.area)*/ )
+            {
+                child_event.area.x = child->widget->allocation.x;
+                child_event.area.y = child->widget->allocation.y;
+                child_event.area.width = child->widget->allocation.width;
+                child_event.area.height = child->widget->allocation.height;
+                gtk_widget_event (child->widget, (GdkEvent*) &child_event);
+            }
         }
     }
         
@@ -690,8 +691,9 @@ static int gtk_window_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_ev
 
 /* GTK thinks it is clever and filters out a certain amount of "unneeded"
    expose events. We need them, of course, so we override the main event
-   procedure in GtkWidget by giving our own handler for all system events,
-   looking for the expose events and then we can always send them. */
+   procedure in GtkWidget by giving our own handler for all system events.
+   There, we look for expose events ourselves whereas all other events are
+   handled normally. */
 
 gint gtk_window_event_event_callback( GtkWidget *widget, GdkEventExpose *event, wxWindow *win )
 {
@@ -701,7 +703,6 @@ gint gtk_window_event_event_callback( GtkWidget *widget, GdkEventExpose *event,
         return ret;
     }
 
-    
     return FALSE;
 }
 
@@ -719,18 +720,6 @@ static void gtk_window_draw_callback( GtkWidget *widget, GdkRectangle *rect, wxW
     if (g_isIdle)
         wxapp_install_idle_handler();
         
-    if (win->m_queuedFullRedraw)
-        return;
-
-    GtkPizza *pizza = GTK_PIZZA (widget);
-        
-    if ( !(GTK_WIDGET_APP_PAINTABLE (widget)) &&
-         (pizza->clear_on_draw))
-    {
-        gdk_window_clear_area( pizza->bin_window,
-                               rect->x, rect->y, rect->width, rect->height);
-    }
-    
 /*
     if (win->GetName() == wxT("htmlWindow"))
     {
@@ -744,33 +733,45 @@ static void gtk_window_draw_callback( GtkWidget *widget, GdkRectangle *rect, wxW
     }
 */
    
-    win->GetUpdateRegion().Union( rect->x, rect->y,
-                                  rect->width, rect->height );
+    GtkPizza *pizza = GTK_PIZZA (widget);
+        
+    if (!win->m_queuedFullRedraw)
+    {
+        if (!(GTK_WIDGET_APP_PAINTABLE (widget)) &&
+             (pizza->clear_on_draw))
+        {
+            gdk_window_clear_area( pizza->bin_window,
+                               rect->x, rect->y, rect->width, rect->height);
+        }
+    
+        win->GetUpdateRegion().Union( rect->x, rect->y, rect->width, rect->height );
 
-    win->m_clipPaintRegion = TRUE;
+        win->m_clipPaintRegion = TRUE;
     
-    wxEraseEvent eevent( win->GetId() );
-    eevent.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent(eevent);
+        wxEraseEvent eevent( win->GetId() );
+        eevent.SetEventObject( win );
+        win->GetEventHandler()->ProcessEvent(eevent);
 
-    wxPaintEvent event( win->GetId() );
-    event.SetEventObject( win );
-    win->GetEventHandler()->ProcessEvent( event );
+        wxPaintEvent event( win->GetId() );
+        event.SetEventObject( win );
+        win->GetEventHandler()->ProcessEvent( event );
 
-    win->GetUpdateRegion().Clear();
+        win->GetUpdateRegion().Clear();
     
-    win->m_clipPaintRegion = FALSE;
+        win->m_clipPaintRegion = FALSE;
     
-    GList *children = pizza->children;
-    while (children)
-    {
-        GtkPizzaChild *child = (GtkPizzaChild*) children->data;
-        children = children->next;
-
-        GdkRectangle child_area;
-        if (gtk_widget_intersect (child->widget, rect, &child_area))
+    
+        GList *children = pizza->children;
+        while (children)
         {
-            gtk_widget_draw (child->widget, &child_area /* (GdkRectangle*) NULL*/ );
+            GtkPizzaChild *child = (GtkPizzaChild*) children->data;
+            children = children->next;
+
+            GdkRectangle child_area;
+            if (gtk_widget_intersect (child->widget, rect, &child_area))
+            {
+                gtk_widget_draw (child->widget, &child_area /* (GdkRectangle*) NULL*/ );
+            }
         }
     }
 }
@@ -1921,8 +1922,8 @@ gtk_wxwindow_realized_callback( GtkWidget * WXUNUSED_UNLESS_XIM(widget),
     if ((colormap = gtk_widget_get_colormap (widget)) !=
            gtk_widget_get_default_colormap ())
     {
-       attrmask |= GDK_IC_PREEDIT_COLORMAP;
-       attr->preedit_colormap = colormap;
+           attrmask |= GDK_IC_PREEDIT_COLORMAP;
+           attr->preedit_colormap = colormap;
     }
 
     attrmask |= GDK_IC_PREEDIT_FOREGROUND;
@@ -2291,6 +2292,9 @@ void wxWindow::PostCreation()
         if (!m_noExpose)
         {
             /* these get reported to wxWindows -> wxPaintEvent */
+            
+            gtk_pizza_set_external( GTK_PIZZA(m_wxwindow), TRUE );
+
             gtk_signal_connect( GTK_OBJECT(m_wxwindow), "event",
                 GTK_SIGNAL_FUNC(gtk_window_event_event_callback), (gpointer)this );
 
@@ -2573,7 +2577,7 @@ void wxWindow::OnInternalIdle()
             m_updateRegion.Clear();
             m_updateRegion.Union( 0,0,m_width,m_height );
             gtk_widget_draw( m_wxwindow, (GdkRectangle*) NULL );
-            
+
             GdkEventMask mask = gdk_window_get_events( GTK_PIZZA(m_wxwindow)->bin_window );
             mask = (GdkEventMask)(mask | GDK_EXPOSURE_MASK);
             gdk_window_set_events( GTK_PIZZA(m_wxwindow)->bin_window, mask );