[gtk+] Add smooth-scroll to GtkTextView event mask

[Paolo Borelli <pborelli src gnome org>]

commit 134ef22a4e2028e689c0861b6cd1d02ada331b87
Author: Daniel Stone <daniel fooishbar org>
Date:   Tue Mar 6 15:52:38 2012 +0000

    Add smooth-scroll to GtkTextView event mask
    
    Without any extra supporting code, just adding GTK_SMOOTH_SCROLL_MASK to
    the event mask for GtkTextView makes GEdit do the right thing and scroll
    smoothly.  Lovely.
    
    Signed-off-by: Daniel Stone <daniel fooishbar org>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=671488

 gtk/gtktextview.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtktextview.c b/gtk/gtktextview.c
index a69040d..33f2b5c 100644
--- a/gtk/gtktextview.c
+++ b/gtk/gtktextview.c
@@ -8449,6 +8449,7 @@ text_window_realize (GtkTextWindow *win,
   attributes.height = win->allocation.height;
   attributes.event_mask = (GDK_EXPOSURE_MASK            |
                            GDK_SCROLL_MASK              |
+                           GDK_SMOOTH_SCROLL_MASK       |
                            GDK_KEY_PRESS_MASK           |
                            GDK_BUTTON_PRESS_MASK        |
                            GDK_BUTTON_RELEASE_MASK      |