[gtk+] gtkprivate: #define OPPOSITE_ORIENTATION

[Benjamin Otte <otte src gnome org>]

commit 6146bf7a32bf4ed6061744c30893b84991abe6b7
Author: Benjamin Otte <otte redhat com>
Date:   Tue Apr 30 01:15:01 2013 +0200

    gtkprivate: #define OPPOSITE_ORIENTATION
    
    and use it

 gtk/gtkbox.c         |    5 +----
 gtk/gtkcellareabox.c |    4 ----
 gtk/gtkpaned.c       |   12 ++++++++++--
 gtk/gtkprivate.h     |    2 ++
 4 files changed, 13 insertions(+), 10 deletions(-)
---
diff --git a/gtk/gtkbox.c b/gtk/gtkbox.c
index f4e88eb..e60fb4f 100644
--- a/gtk/gtkbox.c
+++ b/gtk/gtkbox.c
@@ -791,10 +791,7 @@ gtk_box_compute_expand (GtkWidget      *widget,
   gboolean opposite_expand;
   GtkOrientation opposite_orientation;
 
-  if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
-    opposite_orientation = GTK_ORIENTATION_VERTICAL;
-  else
-    opposite_orientation = GTK_ORIENTATION_HORIZONTAL;
+  opposite_orientation = OPPOSITE_ORIENTATION (private->orientation);
 
   our_expand = FALSE;
   opposite_expand = FALSE;
diff --git a/gtk/gtkcellareabox.c b/gtk/gtkcellareabox.c
index aa05220..94915e2 100644
--- a/gtk/gtkcellareabox.c
+++ b/gtk/gtkcellareabox.c
@@ -239,10 +239,6 @@ G_DEFINE_TYPE_WITH_CODE (GtkCellAreaBox, gtk_cell_area_box, GTK_TYPE_CELL_AREA,
                                                 gtk_cell_area_box_cell_layout_init)
                          G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL));
 
-#define OPPOSITE_ORIENTATION(orientation)                       \
-  ((orientation) == GTK_ORIENTATION_HORIZONTAL ?                \
-   GTK_ORIENTATION_VERTICAL : GTK_ORIENTATION_HORIZONTAL)
-
 static void
 gtk_cell_area_box_init (GtkCellAreaBox *box)
 {
diff --git a/gtk/gtkpaned.c b/gtk/gtkpaned.c
index 77c79ee..2f266a5 100644
--- a/gtk/gtkpaned.c
+++ b/gtk/gtkpaned.c
@@ -927,7 +927,11 @@ gtk_paned_get_preferred_size_for_opposite_orientation (GtkWidget      *widget,
 
   if (priv->child1 && gtk_widget_get_visible (priv->child1))
     {
-      _gtk_widget_get_preferred_size_for_size (priv->child1, 1 - priv->orientation, size, &child_min, 
&child_nat, NULL, NULL);
+      _gtk_widget_get_preferred_size_for_size (priv->child1,
+                                               OPPOSITE_ORIENTATION (priv->orientation),
+                                               size,
+                                               &child_min, &child_nat,
+                                               NULL, NULL);
       
       *minimum = child_min;
       *natural = child_nat;
@@ -935,7 +939,11 @@ gtk_paned_get_preferred_size_for_opposite_orientation (GtkWidget      *widget,
 
   if (priv->child2 && gtk_widget_get_visible (priv->child2))
     {
-      _gtk_widget_get_preferred_size_for_size (priv->child2, 1 - priv->orientation, size, &child_min, 
&child_nat, NULL, NULL);
+      _gtk_widget_get_preferred_size_for_size (priv->child2,
+                                               OPPOSITE_ORIENTATION (priv->orientation),
+                                               size,
+                                               &child_min, &child_nat,
+                                               NULL, NULL);
 
       *minimum = MAX (*minimum, child_min);
       *natural = MAX (*natural, child_nat);
diff --git a/gtk/gtkprivate.h b/gtk/gtkprivate.h
index 093334f..a07f729 100644
--- a/gtk/gtkprivate.h
+++ b/gtk/gtkprivate.h
@@ -37,6 +37,8 @@ G_BEGIN_DECLS
 #define GTK_PARAM_WRITABLE G_PARAM_WRITABLE|G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB
 #define GTK_PARAM_READWRITE G_PARAM_READWRITE|G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB
 
+#define OPPOSITE_ORIENTATION(_orientation) (1 - (_orientation))
+
 #ifdef G_DISABLE_CAST_CHECKS
 /* This is true for debug no and minimum */
 #define gtk_internal_return_if_fail(__expr) G_STMT_START{ (void)0; }G_STMT_END