Do not disable layers view when removing all objects.

This way we can hide the layers view but keep it enabled when new objects
are added.
Fixes #96

diff --git a/Cura/gui/util/engineResultView.py b/Cura/gui/util/engineResultView.py
index 5431ceef0020ffdfc0c140b488d60c27ae24d6b4..8aeefd27ddbb9e5a561be9463e5343713dffda5c 100644 (file)
--- a/Cura/gui/util/engineResultView.py
+++ b/Cura/gui/util/engineResultView.py
@@ -32,7 +32,11 @@ class engineResultView(object):
                if self._result == result:
                        return
                if result is None:
-                       self.setEnabled(False)
+                       self._singleLayer = False
+                       self.layerSelect.setHidden(True)
+                       self.singleLayerToggle.setHidden(True)
+               else:
+                       self.setEnabled(self._enabled)
 
                self._resultLock.acquire()
                self._result = result