[gtk+/native-layout-incubator-2] adding prototype for gtk_distribute_natural_allocation().

[Tristan Van Berkom <tvb src gnome org>]

commit 4a2d067db39c8eccd53963e3eb8ce247e20fc2cd
Author: Tristan Van Berkom <tristan van berkom gmail com>
Date:   Wed Jun 30 11:18:39 2010 -0400

    adding prototype for gtk_distribute_natural_allocation().

 gtk/gtksizerequest.h |   25 +++++++++++++++++++++++++
 1 files changed, 25 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtksizerequest.h b/gtk/gtksizerequest.h
index c397585..2724589 100644
--- a/gtk/gtksizerequest.h
+++ b/gtk/gtksizerequest.h
@@ -36,6 +36,24 @@ G_BEGIN_DECLS
 
 typedef struct _GtkSizeRequest           GtkSizeRequest;
 typedef struct _GtkSizeRequestIface      GtkSizeRequestIface;
+typedef struct _GtkRequestedSize         GtkRequestedSize;
+
+/**
+ * GtkRequestedSize:
+ * @data: A client pointer
+ * @minimum_size: The minimum size needed for allocation in a given orientation
+ * @natural_size: The natural size for allocation in a given orientation
+ *
+ * Represents a request of a screen object in a given orientation. These
+ * are primarily used in container implementations when allocating a natural
+ * size for children calling. See gtk_distribute_natural_allocation().
+ */
+struct _GtkRequestedSize
+{
+  gpointer data;
+  gint     minimum_size;
+  gint     natural_size;
+};
 
 
 struct _GtkSizeRequestIface
@@ -82,6 +100,13 @@ void                gtk_size_request_get_size             (GtkSizeRequest *widge
 							   GtkRequisition *minimum_size,
 							   GtkRequisition *natural_size);
 
+
+/* General convenience function to aid in allocating natural sizes */
+gint                gtk_distribute_natural_allocation     (gint              extra_space,
+							   guint             n_requested_sizes,
+							   GtkRequestedSize *sizes);
+
+
 G_END_DECLS
 
 #endif /* __GTK_SIZE_REQUEST_H__ */