[gtk+/smooth-scrolling-for-3.4: 19/20] spinbutton: Set GDK_SCROLL_MASK explicitly

[Carlos Garnacho <carlosg src gnome org>]

commit 6871da9d04150b6101f48b168b6eb0d8b138b8fc
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Feb 23 14:46:47 2012 +0100

    spinbutton: Set GDK_SCROLL_MASK explicitly
    
    selecting for button press/release doesn't suffice anymore to
    get scroll events.

 gtk/gtkspinbutton.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkspinbutton.c b/gtk/gtkspinbutton.c
index 3b9bac6..e6436fb 100644
--- a/gtk/gtkspinbutton.c
+++ b/gtk/gtkspinbutton.c
@@ -681,6 +681,8 @@ 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