From 7bf96db69106bc39c39cdf2b75042506af08e838 Mon Sep 17 00:00:00 2001
From: Thomas Geymayer <tomgey@gmail.com>
Date: Sun, 21 Jul 2013 11:31:41 +0200
Subject: [PATCH] canvas.Window: Do not delete canvas on close if other
 placements exist.

---
 Nasal/canvas/gui.nas | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/Nasal/canvas/gui.nas b/Nasal/canvas/gui.nas
index 956724b54..294c5bb68 100644
--- a/Nasal/canvas/gui.nas
+++ b/Nasal/canvas/gui.nas
@@ -26,14 +26,24 @@ var Window = {
   # Destructor
   del: func
   {
-    me._node.remove();
-    me._node = nil;
-
     if( me["_canvas"] != nil )
     {
-      me._canvas.del();
+      var placements = me._canvas.texture.getChildren("placement");
+      # Do not remove canvas if other placements exist
+      if( size(placements) > 1 )
+        foreach(var p; placements)
+        {
+          if(     p.getValue("type") == "window"
+              and p.getValue("id") == me.get("id") )
+            p.remove();
+        }
+      else
+        me._canvas.del();
       me._canvas = nil;
     }
+
+    me._node.remove();
+    me._node = nil;
   },
   # Create the canvas to be used for this Window
   #