[gtk+/gtk-2-24] scale: backport orientation fix for vertical scales

[Stefan Kost <stefkost src gnome org>]

commit 03fae9086f8888829563f719d9435177964a5719
Author: Stefan Sauer <ensonic users sf net>
Date:   Mon Jan 9 18:39:13 2012 +0100

    scale: backport orientation fix for vertical scales

 gtk/gtkscale.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkscale.c b/gtk/gtkscale.c
index 955c3c0..42d1788 100644
--- a/gtk/gtkscale.c
+++ b/gtk/gtkscale.c
@@ -945,8 +945,11 @@ find_next_pos (GtkWidget      *widget,
       if (match == (mark->position == pos))
         return marks[i];
     }
-
-  return widget->allocation.width;
+    
+  if (GTK_RANGE(widget)->orientation == GTK_ORIENTATION_HORIZONTAL)
+    return widget->allocation.width;
+  else
+    return widget->allocation.height;
 }
 
 static gboolean