[gtk+] sizegroup: Simplify comparison

[Benjamin Otte <otte src gnome org>]

commit 70ba973d1d9e14ab8b5d8dd528fef8b4580a6be7
Author: Benjamin Otte <otte redhat com>
Date:   Wed Nov 14 01:29:06 2012 +0100

    sizegroup: Simplify comparison

 gtk/gtksizegroup.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtksizegroup.c b/gtk/gtksizegroup.c
index b51b824..7c57558 100644
--- a/gtk/gtksizegroup.c
+++ b/gtk/gtksizegroup.c
@@ -147,6 +147,10 @@ static void gtk_size_group_buildable_custom_finished (GtkBuildable  *buildable,
 						      const gchar   *tagname,
 						      gpointer       user_data);
 
+G_STATIC_ASSERT (GTK_SIZE_GROUP_HORIZONTAL == (1 << GTK_ORIENTATION_HORIZONTAL));
+G_STATIC_ASSERT (GTK_SIZE_GROUP_VERTICAL == (1 << GTK_ORIENTATION_VERTICAL));
+G_STATIC_ASSERT (GTK_SIZE_GROUP_BOTH == (GTK_SIZE_GROUP_HORIZONTAL | GTK_SIZE_GROUP_VERTICAL));
+
 static void
 add_widget_to_closure (GHashTable     *set,
                        GtkWidget      *widget,
@@ -169,9 +173,7 @@ add_widget_to_closure (GHashTable     *set,
       if (tmp_priv->ignore_hidden && hidden)
         continue;
 
-      if (tmp_priv->mode != GTK_SIZE_GROUP_BOTH &&
-          (!(tmp_priv->mode == GTK_SIZE_GROUP_HORIZONTAL && orientation == GTK_ORIENTATION_HORIZONTAL)) &&
-          (!(tmp_priv->mode == GTK_SIZE_GROUP_VERTICAL && orientation == GTK_ORIENTATION_VERTICAL)))
+      if (!(tmp_priv->mode & (1 << orientation)))
         continue;
 
       for (tmp_widgets = tmp_priv->widgets; tmp_widgets; tmp_widgets = tmp_widgets->next)