Finish locking items in location. Can no longer move them if they are locked.

EduNetworkBuilder/Network.cs

@@ -575,7 +575,7 @@ namespace EduNetworkBuilder
                 if (tItem is NetworkDevice)
                 {
                     tDevice = (NetworkDevice)tItem;
-                    if (tDevice.GetNetType() == NetworkComponentType.tree) continue; //Cannot select trees
+                    if (tDevice.IsLockedInLocation()) continue; //some items cannot be moved
                     int tsize = tDevice.Size;
                     tPoint = tDevice.myLocation();
                     if (tPoint.X + tsize >= area.X && tPoint.Y +tsize >= area.Y)

EduNetworkBuilder/NetworkBuilder.cs

@@ -1661,10 +1661,13 @@ namespace EduNetworkBuilder
                 {
                     if (Math.Abs(ClickedLocation.X - ClickLocation.X) > 5 || Math.Abs(ClickedLocation.Y - ClickLocation.Y) > 5)
                     {
-                        ItemClickedOn.ChangeLocation(CenteredLocation);
-                        ItemClickedOn.UnHide(); //If it was hidden, unhide it
-                        UpdateLinks();
-                        UpdateVisuals();
+                        if (!ItemClickedOn.IsLockedInLocation())
+                        {
+                            ItemClickedOn.ChangeLocation(CenteredLocation);
+                            ItemClickedOn.UnHide(); //If it was hidden, unhide it
+                            UpdateLinks();
+                            UpdateVisuals();
+                        }
                     }
                 }
             }
@@ -1769,7 +1772,7 @@ namespace EduNetworkBuilder
             {
                 //find where we are
                 TimeSpan HowLong =  DateTime.UtcNow - LastMouseDown;
-                if(HowLong.TotalMilliseconds > 100)
+                if(HowLong.TotalMilliseconds > 100 && !ItemClickedOn.IsLockedInLocation())
                     DragItemToNewLocation(ItemClickedOn, CenteredLocation);
              }
             else if (MouseIsDown && ItemsSelected.Count >0) //dragging multiple items around

EduNetworkBuilder/NetworkDevice.cs

@@ -459,6 +459,14 @@ namespace EduNetworkBuilder
             writer.WriteEndElement();
         }
 
+        public bool IsLockedInLocation()
+        {
+            if (myType == NetworkComponentType.tree) return true; //Trees are always stationary
+            Network myNet = NB.GetNetwork();
+            if (myNet.ItemHasTest(hostname, NetTestType.LockLocation)) return true;
+            return false;
+        }
+
         public void SetDNSServer(bool isDNS)
         {
             isDNSServer = isDNS;