explicit scrollbar style flags needed

[wxWidgets.git] / src / gtk / win_gtk.c

diff --git a/src/gtk/win_gtk.c b/src/gtk/win_gtk.c
index 2f41b1064c65305f1bee0d49d7716acc33cc4626..29414cd913efd4f9e4013f9253d4df73cbc728b4 100644 (file)
--- a/src/gtk/win_gtk.c
+++ b/src/gtk/win_gtk.c
@@ -1,12 +1,12 @@
 /* ///////////////////////////////////////////////////////////////////////////
 // Name:        win_gtk.c
 /* ///////////////////////////////////////////////////////////////////////////
 // Name:        win_gtk.c

-// Purpose:     Native GTK+ widget for wxWindows, based on GtkLayout and
+// Purpose:     Native GTK+ widget for wxWidgets, based on GtkLayout and

 //              GtkFixed. It makes use of the gravity window property and
 //              therefore does not work with GTK 1.0.
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
 //              GtkFixed. It makes use of the gravity window property and
 //              therefore does not work with GTK 1.0.
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling

-// Licence:     wxWindows licence
+// Licence:     wxWidgets licence

 /////////////////////////////////////////////////////////////////////////// */
 
 #ifdef VMS
 /////////////////////////////////////////////////////////////////////////// */
 
 #ifdef VMS


@@ -23,6 +23,8 @@
 extern "C" {
 #endif /* __cplusplus */
 
 extern "C" {
 #endif /* __cplusplus */
 

+#ifndef __WXGTK20__
+

 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <X11/Xatom.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <X11/Xatom.h>


@@ -30,6 +32,8 @@ extern "C" {
 #define IS_ONSCREEN(x,y) ((x >= G_MINSHORT) && (x <= G_MAXSHORT) && \
                           (y >= G_MINSHORT) && (y <= G_MAXSHORT))
 
 #define IS_ONSCREEN(x,y) ((x >= G_MINSHORT) && (x <= G_MAXSHORT) && \
                           (y >= G_MINSHORT) && (y <= G_MAXSHORT))
 

+#endif
+

 typedef struct _GtkPizzaAdjData  GtkPizzaAdjData;
 
 struct _GtkPizzaAdjData
 typedef struct _GtkPizzaAdjData  GtkPizzaAdjData;
 
 struct _GtkPizzaAdjData


@@ -50,10 +54,14 @@ static void gtk_pizza_size_request  (GtkWidget        *widget,
                                      GtkRequisition   *requisition);
 static void gtk_pizza_size_allocate (GtkWidget        *widget,
                                      GtkAllocation    *allocation);
                                      GtkRequisition   *requisition);
 static void gtk_pizza_size_allocate (GtkWidget        *widget,
                                      GtkAllocation    *allocation);

+#ifndef __WXGTK20__

 static void gtk_pizza_draw          (GtkWidget        *widget,
                                      GdkRectangle     *area);
 static void gtk_pizza_draw          (GtkWidget        *widget,
                                      GdkRectangle     *area);

+#endif /* __WXGTK20__ */

 static gint gtk_pizza_expose        (GtkWidget        *widget,
                                      GdkEventExpose   *event);
 static gint gtk_pizza_expose        (GtkWidget        *widget,
                                      GdkEventExpose   *event);

+static void gtk_pizza_style_set     (GtkWidget *widget,
+                                     GtkStyle  *previous_style);

 static void gtk_pizza_add           (GtkContainer     *container,
                                      GtkWidget        *widget);
 static void gtk_pizza_remove        (GtkContainer     *container,
 static void gtk_pizza_add           (GtkContainer     *container,
                                      GtkWidget        *widget);
 static void gtk_pizza_remove        (GtkContainer     *container,


@@ -62,30 +70,16 @@ static void gtk_pizza_forall        (GtkContainer     *container,
                                      gboolean          include_internals,
                                      GtkCallback       callback,
                                      gpointer          callback_data);
                                      gboolean          include_internals,
                                      GtkCallback       callback,
                                      gpointer          callback_data);

-
-static void     gtk_pizza_position_child     (GtkPizza      *pizza,
-                                              GtkPizzaChild *child);
+                                     

 static void     gtk_pizza_allocate_child     (GtkPizza      *pizza,
                                               GtkPizzaChild *child);
 static void     gtk_pizza_allocate_child     (GtkPizza      *pizza,
                                               GtkPizzaChild *child);

-static void     gtk_pizza_position_children  (GtkPizza      *pizza);
-

 static void     gtk_pizza_adjust_allocations_recurse (GtkWidget *widget,
                                                       gpointer   cb_data);
 static void     gtk_pizza_adjust_allocations_recurse (GtkWidget *widget,
                                                       gpointer   cb_data);

-static void     gtk_pizza_adjust_allocations         (GtkPizza  *pizza,
-                                                      gint       dx,
-                                                      gint       dy);
-
-
-/* unused */
-#if 0
-static void     gtk_pizza_expose_area        (GtkPizza       *pizza,
-                                              gint            x,
-                                              gint            y,
-                                              gint            width,
-                                              gint            height);
-static void     gtk_pizza_adjustment_changed (GtkAdjustment  *adjustment,
-                                              GtkPizza       *pizza);
-#endif
+
+#ifndef __WXGTK20__
+static void     gtk_pizza_position_child     (GtkPizza      *pizza,
+                                              GtkPizzaChild *child);
+static void     gtk_pizza_position_children  (GtkPizza      *pizza);

 
 static GdkFilterReturn gtk_pizza_filter      (GdkXEvent      *gdk_xevent,
                                               GdkEvent       *event,
 
 static GdkFilterReturn gtk_pizza_filter      (GdkXEvent      *gdk_xevent,
                                               GdkEvent       *event,


@@ -93,7 +87,7 @@ static GdkFilterReturn gtk_pizza_filter      (GdkXEvent      *gdk_xevent,
 static GdkFilterReturn gtk_pizza_main_filter (GdkXEvent      *gdk_xevent,
                                               GdkEvent       *event,
                                               gpointer        data);
 static GdkFilterReturn gtk_pizza_main_filter (GdkXEvent      *gdk_xevent,
                                               GdkEvent       *event,
                                               gpointer        data);

-
+#endif /* __WXGTK20__ */

 
 static GtkType gtk_pizza_child_type (GtkContainer     *container);
 
 
 static GtkType gtk_pizza_child_type (GtkContainer     *container);
 


@@ -102,7 +96,12 @@ static void  gtk_pizza_scroll_set_adjustments (GtkPizza      *pizza,
                                                GtkAdjustment *vadj);
 
 
                                                GtkAdjustment *vadj);
 
 

-static GtkContainerClass *parent_class = NULL;
+#ifdef __WXGTK20__
+       GtkContainerClass *pizza_parent_class = NULL;
+#else
+static GtkContainerClass *pizza_parent_class = NULL;
+#endif
+

 static gboolean gravity_works;
 
 guint
 static gboolean gravity_works;
 
 guint


@@ -112,18 +111,35 @@ gtk_pizza_get_type ()
 
     if (!pizza_type)
     {
 
     if (!pizza_type)
     {

+    
+#ifdef __WXGTK20__
+        static const GTypeInfo pizza_info =
+        {
+            sizeof (GtkPizzaClass),
+            NULL,           /* base_init */
+            NULL,           /* base_finalize */
+            (GClassInitFunc) gtk_pizza_class_init,
+            NULL,           /* class_finalize */
+            NULL,           /* class_data */
+            sizeof (GtkPizza),
+            16,             /* n_preallocs */
+            (GInstanceInitFunc) gtk_pizza_init,
+        };
+        pizza_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkPizza", &pizza_info, 0);
+#else

         GtkTypeInfo pizza_info =
         {
         GtkTypeInfo pizza_info =
         {

-           "GtkPizza",
-           sizeof (GtkPizza),
-           sizeof (GtkPizzaClass),
-           (GtkClassInitFunc) gtk_pizza_class_init,
-           (GtkObjectInitFunc) gtk_pizza_init,
-           /* reserved_1 */ NULL,
-           /* reserved_2 */ NULL,
-           (GtkClassInitFunc) NULL,
+            "GtkPizza",
+            sizeof (GtkPizza),
+            sizeof (GtkPizzaClass),
+            (GtkClassInitFunc) gtk_pizza_class_init,
+            (GtkObjectInitFunc) gtk_pizza_init,
+            /* reserved_1 */ NULL,
+            /* reserved_2 */ NULL,
+            (GtkClassInitFunc) NULL,

         };
         pizza_type = gtk_type_unique (gtk_container_get_type (), &pizza_info);
         };
         pizza_type = gtk_type_unique (gtk_container_get_type (), &pizza_info);

+#endif

     }
 
     return pizza_type;
     }
 
     return pizza_type;


@@ -139,15 +155,18 @@ gtk_pizza_class_init (GtkPizzaClass *klass)
     object_class = (GtkObjectClass*) klass;
     widget_class = (GtkWidgetClass*) klass;
     container_class = (GtkContainerClass*) klass;
     object_class = (GtkObjectClass*) klass;
     widget_class = (GtkWidgetClass*) klass;
     container_class = (GtkContainerClass*) klass;

-    parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
+    pizza_parent_class = gtk_type_class (GTK_TYPE_CONTAINER);

 
     widget_class->map = gtk_pizza_map;
     widget_class->realize = gtk_pizza_realize;
     widget_class->unrealize = gtk_pizza_unrealize;
     widget_class->size_request = gtk_pizza_size_request;
     widget_class->size_allocate = gtk_pizza_size_allocate;
 
     widget_class->map = gtk_pizza_map;
     widget_class->realize = gtk_pizza_realize;
     widget_class->unrealize = gtk_pizza_unrealize;
     widget_class->size_request = gtk_pizza_size_request;
     widget_class->size_allocate = gtk_pizza_size_allocate;

+#ifndef __WXGTK20__

     widget_class->draw = gtk_pizza_draw;
     widget_class->draw = gtk_pizza_draw;

+#endif

     widget_class->expose_event = gtk_pizza_expose;
     widget_class->expose_event = gtk_pizza_expose;

+    widget_class->style_set = gtk_pizza_style_set;

 
     container_class->add = gtk_pizza_add;
     container_class->remove = gtk_pizza_remove;
 
     container_class->add = gtk_pizza_add;
     container_class->remove = gtk_pizza_remove;


@@ -160,7 +179,6 @@ gtk_pizza_class_init (GtkPizzaClass *klass)
     widget_class->set_scroll_adjustments_signal =
     gtk_signal_new ("set_scroll_adjustments",
                     GTK_RUN_LAST,
     widget_class->set_scroll_adjustments_signal =
     gtk_signal_new ("set_scroll_adjustments",
                     GTK_RUN_LAST,

-

 #ifdef __WXGTK20__
                     GTK_CLASS_TYPE(object_class),
 #else
 #ifdef __WXGTK20__
                     GTK_CLASS_TYPE(object_class),
 #else


@@ -295,32 +313,17 @@ gtk_pizza_put (GtkPizza   *pizza,
 
     pizza->children = g_list_append (pizza->children, child_info);
 
 
     pizza->children = g_list_append (pizza->children, child_info);
 

-    gtk_widget_set_parent (widget, GTK_WIDGET (pizza));
-

     if (GTK_WIDGET_REALIZED (pizza))
       gtk_widget_set_parent_window (widget, pizza->bin_window);
 
     if (GTK_WIDGET_REALIZED (pizza))
       gtk_widget_set_parent_window (widget, pizza->bin_window);
 

+    gtk_widget_set_parent (widget, GTK_WIDGET (pizza));
+

 #ifndef __WXGTK20__ /* FIXME? */
     if (!IS_ONSCREEN (x, y))
        GTK_PRIVATE_SET_FLAG (widget, GTK_IS_OFFSCREEN);
 #endif
 
 #ifndef __WXGTK20__ /* FIXME? */
     if (!IS_ONSCREEN (x, y))
        GTK_PRIVATE_SET_FLAG (widget, GTK_IS_OFFSCREEN);
 #endif
 

-/*
-    if (GTK_WIDGET_REALIZED (pizza))
-        gtk_widget_realize (widget);
-*/
-

     gtk_widget_set_usize (widget, width, height);
     gtk_widget_set_usize (widget, width, height);

-
-/*
-    if (GTK_WIDGET_VISIBLE (pizza) && GTK_WIDGET_VISIBLE (widget))
-    {
-        if (GTK_WIDGET_MAPPED (pizza))
-            gtk_widget_map (widget);
-
-        gtk_widget_queue_resize (widget);
-    }
-*/

 }
 
 void
 }
 
 void


@@ -349,7 +352,7 @@ gtk_pizza_move (GtkPizza     *pizza,
 
             child->x = x;
             child->y = y;
 
             child->x = x;
             child->y = y;

-
+            

             if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (pizza))
                 gtk_widget_queue_resize (widget);
             break;
             if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (pizza))
                 gtk_widget_queue_resize (widget);
             break;


@@ -511,7 +514,6 @@ gtk_pizza_realize (GtkWidget *widget)
     g_return_if_fail (GTK_IS_PIZZA (widget));
 
     pizza = GTK_PIZZA (widget);
     g_return_if_fail (GTK_IS_PIZZA (widget));
 
     pizza = GTK_PIZZA (widget);

-

     GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 
     attributes.window_type = GDK_WINDOW_CHILD;
     GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 
     attributes.window_type = GDK_WINDOW_CHILD;


@@ -564,6 +566,9 @@ gtk_pizza_realize (GtkWidget *widget)
 
     attributes.event_mask = gtk_widget_get_events (widget);
     attributes.event_mask |= GDK_EXPOSURE_MASK              |
 
     attributes.event_mask = gtk_widget_get_events (widget);
     attributes.event_mask |= GDK_EXPOSURE_MASK              |

+#ifdef __WXGTK20__
+                             GDK_SCROLL_MASK                |
+#endif

                              GDK_POINTER_MOTION_MASK        |
                              GDK_POINTER_MOTION_HINT_MASK   |
                              GDK_BUTTON_MOTION_MASK         |
                              GDK_POINTER_MOTION_MASK        |
                              GDK_POINTER_MOTION_HINT_MASK   |
                              GDK_BUTTON_MOTION_MASK         |


@@ -585,15 +590,17 @@ gtk_pizza_realize (GtkWidget *widget)
     widget->style = gtk_style_attach (widget->style, widget->window);
     gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
     gtk_style_set_background (widget->style, pizza->bin_window, GTK_STATE_NORMAL );
     widget->style = gtk_style_attach (widget->style, widget->window);
     gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
     gtk_style_set_background (widget->style, pizza->bin_window, GTK_STATE_NORMAL );

-    
+ 

 /*
     gdk_window_set_back_pixmap( widget->window, NULL, FALSE );
     gdk_window_set_back_pixmap( pizza->bin_window, NULL, FALSE );
 */
 
 /*
     gdk_window_set_back_pixmap( widget->window, NULL, FALSE );
     gdk_window_set_back_pixmap( pizza->bin_window, NULL, FALSE );
 */
 

+#ifndef __WXGTK20__

     /* add filters for intercepting visibility and expose events */
     gdk_window_add_filter (widget->window, gtk_pizza_main_filter, pizza);
     gdk_window_add_filter (pizza->bin_window, gtk_pizza_filter, pizza);
     /* add filters for intercepting visibility and expose events */
     gdk_window_add_filter (widget->window, gtk_pizza_main_filter, pizza);
     gdk_window_add_filter (pizza->bin_window, gtk_pizza_filter, pizza);

+#endif

 
     /* we NEED gravity or we'll give up */
     gravity_works = gdk_window_set_static_gravities (pizza->bin_window, TRUE);
 
     /* we NEED gravity or we'll give up */
     gravity_works = gdk_window_set_static_gravities (pizza->bin_window, TRUE);


@@ -623,8 +630,8 @@ gtk_pizza_unrealize (GtkWidget *widget)
     gdk_window_destroy (pizza->bin_window);
     pizza->bin_window = NULL;
 
     gdk_window_destroy (pizza->bin_window);
     pizza->bin_window = NULL;
 

-    if (GTK_WIDGET_CLASS (parent_class)->unrealize)
-       (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+    if (GTK_WIDGET_CLASS (pizza_parent_class)->unrealize)
+       (* GTK_WIDGET_CLASS (pizza_parent_class)->unrealize) (widget);

 }
 
 static void
 }
 
 static void


@@ -703,11 +710,15 @@ gtk_pizza_size_allocate (GtkWidget     *widget,
         child = children->data;
         children = children->next;
 
         child = children->data;
         children = children->next;
 

+#ifndef __WXGTK20__

         gtk_pizza_position_child (pizza, child);
         gtk_pizza_position_child (pizza, child);

+#endif

         gtk_pizza_allocate_child (pizza, child);
     }
 }
 
         gtk_pizza_allocate_child (pizza, child);
     }
 }
 

+#ifndef __WXGTK20__
+

 static void
 gtk_pizza_draw (GtkWidget    *widget,
                 GdkRectangle *area)
 static void
 gtk_pizza_draw (GtkWidget    *widget,
                 GdkRectangle *area)


@@ -744,14 +755,18 @@ gtk_pizza_draw (GtkWidget    *widget,
     }
 }
 
     }
 }
 

+#endif /* __WXGTK20__ */
+

 static gint
 gtk_pizza_expose (GtkWidget      *widget,
                   GdkEventExpose *event)
 {
     GtkPizza *pizza;
 static gint
 gtk_pizza_expose (GtkWidget      *widget,
                   GdkEventExpose *event)
 {
     GtkPizza *pizza;

+#ifndef __WXGTK20__

     GtkPizzaChild *child;
     GdkEventExpose child_event;
     GList *children;
     GtkPizzaChild *child;
     GdkEventExpose child_event;
     GList *children;

+#endif

 
     g_return_val_if_fail (widget != NULL, FALSE);
     g_return_val_if_fail (GTK_IS_PIZZA (widget), FALSE);
 
     g_return_val_if_fail (widget != NULL, FALSE);
     g_return_val_if_fail (GTK_IS_PIZZA (widget), FALSE);


@@ -759,13 +774,21 @@ gtk_pizza_expose (GtkWidget      *widget,
 
     pizza = GTK_PIZZA (widget);
 
 
     pizza = GTK_PIZZA (widget);
 

-    /* Sometimes, We handle all expose events in window.cpp now. */
-    if (pizza->external_expose)
+    if (event->window != pizza->bin_window)

         return FALSE;
 
         return FALSE;
 

-    if (event->window != pizza->bin_window)
+    /* We handle all expose events in window.cpp now. */
+    if (pizza->external_expose)

         return FALSE;
 
         return FALSE;
 

+#ifdef __WXGTK20__
+
+    (* GTK_WIDGET_CLASS (pizza_parent_class)->expose_event) (widget, event);
+    
+    return FALSE;
+    
+#else
+

     children = pizza->children;
     while (children)
     {
     children = pizza->children;
     while (children)
     {


@@ -781,8 +804,22 @@ gtk_pizza_expose (GtkWidget      *widget,
             gtk_widget_event (child->widget, (GdkEvent*) &child_event);
         }
     }
             gtk_widget_event (child->widget, (GdkEvent*) &child_event);
         }
     }

-
+    

     return TRUE;
     return TRUE;

+    
+#endif
+}
+
+static void
+gtk_pizza_style_set(GtkWidget *widget, GtkStyle  *previous_style)
+{
+    if (GTK_WIDGET_REALIZED(widget))
+    {
+        gtk_style_set_background(widget->style, widget->window, GTK_STATE_NORMAL);
+        gtk_style_set_background(widget->style, GTK_PIZZA(widget)->bin_window, GTK_STATE_NORMAL );
+    }
+
+    (* GTK_WIDGET_CLASS (pizza_parent_class)->style_set) (widget, previous_style);

 }
 
 static void
 }
 
 static void


@@ -852,7 +889,7 @@ gtk_pizza_forall (GtkContainer *container,
 
     g_return_if_fail (container != NULL);
     g_return_if_fail (GTK_IS_PIZZA (container));
 
     g_return_if_fail (container != NULL);
     g_return_if_fail (GTK_IS_PIZZA (container));

-    g_return_if_fail (callback != NULL);
+    g_return_if_fail (callback != (GtkCallback)NULL);

 
     pizza = GTK_PIZZA (container);
 
 
     pizza = GTK_PIZZA (container);
 


@@ -866,46 +903,6 @@ gtk_pizza_forall (GtkContainer *container,
     }
 }
 
     }
 }
 

-
-/* Operations on children
- */
-
-static void
-gtk_pizza_position_child (GtkPizza      *pizza,
-                          GtkPizzaChild *child)
-{
-    gint x;
-    gint y;
-
-    x = child->x - pizza->xoffset;
-    y = child->y - pizza->yoffset;
-
-    if (IS_ONSCREEN (x,y))
-    {
-        if (GTK_WIDGET_MAPPED (pizza) &&
-          GTK_WIDGET_VISIBLE (child->widget))
-        {
-            if (!GTK_WIDGET_MAPPED (child->widget))
-                gtk_widget_map (child->widget);
-        }
-
-#ifndef __WXGTK20__
-        if (GTK_WIDGET_IS_OFFSCREEN (child->widget))
-            GTK_PRIVATE_UNSET_FLAG (child->widget, GTK_IS_OFFSCREEN);
-#endif
-    }
-    else
-    {
-#ifndef __WXGTK20__
-        if (!GTK_WIDGET_IS_OFFSCREEN (child->widget))
-            GTK_PRIVATE_SET_FLAG (child->widget, GTK_IS_OFFSCREEN);
-#endif
-
-        if (GTK_WIDGET_MAPPED (child->widget))
-            gtk_widget_unmap (child->widget);
-    }
-}
-

 static void
 gtk_pizza_allocate_child (GtkPizza      *pizza,
                           GtkPizzaChild *child)
 static void
 gtk_pizza_allocate_child (GtkPizza      *pizza,
                           GtkPizzaChild *child)


@@ -922,21 +919,6 @@ gtk_pizza_allocate_child (GtkPizza      *pizza,
     gtk_widget_size_allocate (child->widget, &allocation);
 }
 
     gtk_widget_size_allocate (child->widget, &allocation);
 }
 

-static void
-gtk_pizza_position_children (GtkPizza *pizza)
-{
-    GList *tmp_list;
-
-    tmp_list = pizza->children;
-    while (tmp_list)
-    {
-        GtkPizzaChild *child = tmp_list->data;
-        tmp_list = tmp_list->next;
-
-        gtk_pizza_position_child (pizza, child);
-    }
-}
-

 static void
 gtk_pizza_adjust_allocations_recurse (GtkWidget *widget,
                                        gpointer   cb_data)
 static void
 gtk_pizza_adjust_allocations_recurse (GtkWidget *widget,
                                        gpointer   cb_data)


@@ -984,40 +966,55 @@ gtk_pizza_adjust_allocations (GtkPizza *pizza,
     }
 }
 
     }
 }
 

-/* Callbacks */
-
-/* unused */
-#if 0
-/* Send a synthetic expose event to the widget
- */
+#ifndef __WXGTK20__

 static void
 static void

-gtk_pizza_expose_area (GtkPizza    *pizza,
-                        gint x, gint y, gint width, gint height)
+gtk_pizza_position_child (GtkPizza      *pizza,
+                          GtkPizzaChild *child)

 {
 {

-    if (pizza->visibility == GDK_VISIBILITY_UNOBSCURED)
-    {
-        GdkEventExpose event;
+    gint x;
+    gint y;
+
+    x = child->x - pizza->xoffset;
+    y = child->y - pizza->yoffset;

 
 

-        event.type = GDK_EXPOSE;
-        event.send_event = TRUE;
-        event.window = pizza->bin_window;
-        event.count = 0;
+    if (IS_ONSCREEN (x,y))
+    {
+        if (GTK_WIDGET_MAPPED (pizza) &&
+          GTK_WIDGET_VISIBLE (child->widget))
+        {
+            if (!GTK_WIDGET_MAPPED (child->widget))
+                gtk_widget_map (child->widget);
+        }

 
 

-        event.area.x = x;
-        event.area.y = y;
-        event.area.width = width;
-        event.area.height = height;
+        if (GTK_WIDGET_IS_OFFSCREEN (child->widget))
+            GTK_PRIVATE_UNSET_FLAG (child->widget, GTK_IS_OFFSCREEN);
+    }
+    else
+    {
+        if (!GTK_WIDGET_IS_OFFSCREEN (child->widget))
+            GTK_PRIVATE_SET_FLAG (child->widget, GTK_IS_OFFSCREEN);

 
 

-        gdk_window_ref (event.window);
-        gtk_widget_event (GTK_WIDGET (pizza), (GdkEvent *)&event);
-        gdk_window_unref (event.window);
+        if (GTK_WIDGET_MAPPED (child->widget))
+            gtk_widget_unmap (child->widget);

     }
 }
     }
 }

-#endif /* unused */

 
 

-/* This function is used to find events to process while scrolling
- */
+static void
+gtk_pizza_position_children (GtkPizza *pizza)
+{
+    GList *tmp_list;
+
+    tmp_list = pizza->children;
+    while (tmp_list)
+    {
+        GtkPizzaChild *child = tmp_list->data;
+        tmp_list = tmp_list->next;

 
 

+        gtk_pizza_position_child (pizza, child);
+    }
+}
+
+/* This function is used to find events to process while scrolling */

 static Bool
 gtk_pizza_expose_predicate (Display *display,
                   XEvent  *xevent,
 static Bool
 gtk_pizza_expose_predicate (Display *display,
                   XEvent  *xevent,


@@ -1030,6 +1027,7 @@ gtk_pizza_expose_predicate (Display *display,
     else
         return False;
 }
     else
         return False;
 }

+#endif /* __WXGTK20__ */

 
 /* This is the main routine to do the scrolling. Scrolling is
  * done by "Guffaw" scrolling, as in the Mozilla XFE, with
 
 /* This is the main routine to do the scrolling. Scrolling is
  * done by "Guffaw" scrolling, as in the Mozilla XFE, with


@@ -1046,8 +1044,18 @@ gtk_pizza_expose_predicate (Display *display,
 void
 gtk_pizza_scroll (GtkPizza *pizza, gint dx, gint dy)
 {
 void
 gtk_pizza_scroll (GtkPizza *pizza, gint dx, gint dy)
 {

+#ifdef __WXGTK20__
+    pizza->xoffset += dx;
+    pizza->yoffset += dy;
+
+    gtk_pizza_adjust_allocations (pizza, -dx, -dy);
+
+    if (pizza->bin_window)
+        gdk_window_scroll( pizza->bin_window, -dx, -dy );
+#else

     GtkWidget *widget;
     XEvent xevent;
     GtkWidget *widget;
     XEvent xevent;

+    XID win;

 
     gint x,y,w,h,border;
 
 
     gint x,y,w,h,border;
 


@@ -1142,10 +1150,12 @@ gtk_pizza_scroll (GtkPizza *pizza, gint dx, gint dy)
     gtk_pizza_position_children (pizza);
 
     gdk_flush();
     gtk_pizza_position_children (pizza);
 
     gdk_flush();

+
+    win = GDK_WINDOW_XWINDOW (pizza->bin_window);

     while (XCheckIfEvent(GDK_WINDOW_XDISPLAY (pizza->bin_window),
                          &xevent,
                          gtk_pizza_expose_predicate,
     while (XCheckIfEvent(GDK_WINDOW_XDISPLAY (pizza->bin_window),
                          &xevent,
                          gtk_pizza_expose_predicate,

-                         (XPointer)&GDK_WINDOW_XWINDOW (pizza->bin_window)))
+                         (XPointer)&win))

     {
         GdkEvent event;
         GtkWidget *event_widget;
     {
         GdkEvent event;
         GtkWidget *event_widget;


@@ -1174,8 +1184,11 @@ gtk_pizza_scroll (GtkPizza *pizza, gint dx, gint dy)
             }
         }
     }
             }
         }
     }

+#endif /* __WXGTK20__ */

 }
 
 }
 

+
+#ifndef __WXGTK20__

 /* The main event filter. Actually, we probably don't really need
  * to install this as a filter at all, since we are calling it
  * directly above in the expose-handling hack. But in case scrollbars
 /* The main event filter. Actually, we probably don't really need
  * to install this as a filter at all, since we are calling it
  * directly above in the expose-handling hack. But in case scrollbars


@@ -1263,6 +1276,7 @@ gtk_pizza_main_filter (GdkXEvent *gdk_xevent,
 
     return GDK_FILTER_CONTINUE;
 }
 
     return GDK_FILTER_CONTINUE;
 }

+#endif /* __WXGTK20__ */

 
 
 #ifdef __cplusplus
 
 
 #ifdef __cplusplus