Ensure that GtkRange allocates enough space for the value

This is a long-standing problem of GtkScale.

https://bugzilla.gnome.org/show_bug.cgi?id=766372
https://bugzilla.gnome.org/show_bug.cgi?id=578626
https://bugzilla.gnome.org/show_bug.cgi?id=79229

1 files changed, 5 insertions, 1 deletions

diff --git a/gtk/gtkrange.h b/gtk/gtkrange.h
index b21e8444d0..e78b3b5a61 100644
--- a/gtk/gtkrange.h
+++ b/gtk/gtkrange.h
@@ -78,11 +78,15 @@ struct _GtkRangeClass
                              GtkScrollType scroll,
                              gdouble       new_value);
 
+   void (* get_range_size_request) (GtkRange       *range,
+                                    GtkOrientation  orientation,
+                                    gint           *minimum,
+                                    gint           *natural);
+
   /* Padding for future expansion */
   void (*_gtk_reserved1) (void);
   void (*_gtk_reserved2) (void);
   void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
 };