Implement item stacking.

git-svn-id: http://svn.drobilla.net/lad/trunk/ganv@4876 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 7 insertions, 6 deletions

diff --git a/ganv/canvas-base.h b/ganv/canvas-base.h
index 816fb28..161df81 100644
--- a/ganv/canvas-base.h
+++ b/ganv/canvas-base.h
@@ -83,6 +83,9 @@ struct _GanvItem {
 	/* Parent for this item */
 	GanvItem* parent;
 
+	/* Layer (z order), higher values are on top */
+	guint layer;
+
 	/* Position in parent-relative coordinates. */
 	double x, y;
 
@@ -172,14 +175,12 @@ void ganv_item_set(GanvItem* item, const gchar* first_arg_name, ...);
 void ganv_item_set_valist(GanvItem* item,
                           const gchar* first_arg_name, va_list args);
 
-/* Move an item by the specified amount */
-void ganv_item_move(GanvItem* item, double dx, double dy);
+void ganv_item_raise(GanvItem* item);
 
-/* Raise an item to the top of its parent's z-order. */
-void ganv_item_raise_to_top(GanvItem* item);
+void ganv_item_lower(GanvItem* item);
 
-/* Lower an item to the bottom of its parent's z-order */
-void ganv_item_lower_to_bottom(GanvItem* item);
+/* Move an item by the specified amount */
+void ganv_item_move(GanvItem* item, double dx, double dy);
 
 /* Show an item (make it visible).  If the item is already shown, it has no
  * effect.