From 2397b68cd78bb40aea3852b6f6c43cbf1f2ceb25 Mon Sep 17 00:00:00 2001
From: Lipu Fei <lipu.fei815@gmail.com>
Date: Thu, 23 Nov 2017 14:07:38 +0100
Subject: [PATCH] Optimize MaterialsModel update

CURA-4546
---
 cura/Settings/MaterialsModel.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cura/Settings/MaterialsModel.py b/cura/Settings/MaterialsModel.py
index bee9307b53..bab8929765 100644
--- a/cura/Settings/MaterialsModel.py
+++ b/cura/Settings/MaterialsModel.py
@@ -18,4 +18,8 @@ class MaterialsModel(InstanceContainersModel):
     #   \param container The container whose metadata was changed.
     def _onContainerMetaDataChanged(self, container):
         if container.getMetaDataEntry("type") == "material": #Only need to update if a material was changed.
-            self._update()
\ No newline at end of file
+            self._update()
+
+    def _onContainerChanged(self, container):
+        if container.getMetaDataEntry("type", "") == "material":
+            super()._onContainerChanged(container)