spinbutton: Set GDK_SCROLL_MASK explicitly

selecting for button press/release doesn't suffice anymore to
get scroll events.

diff --git a/gtk/gtkspinbutton.c b/gtk/gtkspinbutton.c
index 020d9fb22377eb3c5a6765436b838946d1c04c54..e3caddff84bd14549b2f44a79c57bf7b8d599df8 100644 (file)
--- a/gtk/gtkspinbutton.c
+++ b/gtk/gtkspinbutton.c
@@ -679,6 +679,8 @@ gtk_spin_button_init (GtkSpinButton *spin_button)
 
   context = gtk_widget_get_style_context (GTK_WIDGET (spin_button));
   gtk_style_context_add_class (context, GTK_STYLE_CLASS_SPINBUTTON);
+
+  gtk_widget_add_events (GTK_WIDGET (spin_button), GDK_SCROLL_MASK);
 }
 
 static void