From bf7eac30bebcabbde2addd367ba030d4bae62758 Mon Sep 17 00:00:00 2001
From: "Zheng, Lei" <realthunder.dev@gmail.com>
Date: Tue, 8 Jan 2019 16:59:06 +0800
Subject: [PATCH] assembly: hide constraint group when empty

---
 assembly.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/assembly.py b/assembly.py
index fd1f4ba..6833c7d 100644
--- a/assembly.py
+++ b/assembly.py
@@ -2159,6 +2159,13 @@ class ViewProviderAsmConstraintGroup(ViewProviderAsmGroup):
     def onDelete(self,_vobj,_subs):
         return False
 
+    def updateData(self,obj,prop):
+        if prop == 'Group':
+            vis = len(obj.Group)!=0
+            vobj = obj.ViewObject
+            if vis != vobj.ShowInTree:
+                vobj.ShowInTree = vis
+
 
 class AsmElementGroup(AsmGroup):
     def __init__(self,parent):