[gtk+] level bar: Fix offset behavior

[Matthias Clasen <matthiasc src gnome org>]

commit ccd8c76ff2d73215e0785db8568ec500ed7a238d
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Feb 6 16:42:25 2016 +0100

    level bar: Fix offset behavior
    
    We had some odd special-casing for the lowest and highest offset
    that did not quite work. The new rule is simple: If the value
    is between offset n-1 and n, it gets the style for offset n.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=761416

 gtk/gtklevelbar.c |   20 +++++++++++---------
 1 files changed, 11 insertions(+), 9 deletions(-)
---
diff --git a/gtk/gtklevelbar.c b/gtk/gtklevelbar.c
index 6cffd98..aed5920 100644
--- a/gtk/gtklevelbar.c
+++ b/gtk/gtklevelbar.c
@@ -652,16 +652,18 @@ update_level_style_classes (GtkLevelBar *self)
       offset = l->data;
 
       /* find the right offset for our style class */
-      if ((l->prev == NULL && value <= offset->value) ||
-          (l->next == NULL && value >= offset->value))
+      if (value <= offset->value)
         {
-          value_class = offset->name;
-        }
-      else if (l->prev != NULL)
-        {
-          prev_offset = l->prev->data;
-          if (prev_offset->value <= value && value < offset->value)
-            value_class = offset->name;
+          if (l->prev == NULL)
+            {
+              value_class = offset->name;
+            }
+          else
+            {
+              prev_offset = l->prev->data;
+              if (prev_offset->value < value)
+                value_class = offset->name;
+            }
         }
 
       if (value_class)