From 5e45699c35a5cc4d077da764064010d601b52900 Mon Sep 17 00:00:00 2001
From: Juan Pablo Caram <jpcaram@gmail.com>
Date: Fri, 11 Sep 2015 15:19:28 -0400
Subject: [PATCH] Fixes #120.

---
 FlatCAMApp.py  | 5 +++++
 FlatCAMDraw.py | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/FlatCAMApp.py b/FlatCAMApp.py
index b05ffb48..b2f286cc 100644
--- a/FlatCAMApp.py
+++ b/FlatCAMApp.py
@@ -2186,6 +2186,11 @@ class App(QtCore.QObject):
             return 'Ok'
 
         def write_gcode(obj_name, filename, preamble='', postamble=''):
+            """
+            Requires obj_name to be available. It might still be in the
+            making at the time this function is called, so check for
+            promises and send to background if there are promises.
+            """
             if self.collection.has_promises():
                 self.log.debug("Collection has promises. write_gcode() queued.")
                 self.worker_task.emit({
diff --git a/FlatCAMDraw.py b/FlatCAMDraw.py
index d64d4b54..8f832a44 100644
--- a/FlatCAMDraw.py
+++ b/FlatCAMDraw.py
@@ -827,7 +827,8 @@ class FlatCAMDraw(QtCore.QObject):
         """
         assert isinstance(fcgeometry, Geometry)
 
-        self.clear()
+        self.deactivate()
+
         self.connect_canvas_event_handlers()
         self.select_tool("select")