From e5a7e0cd16995c4d985c1fcef349dd92dc933979 Mon Sep 17 00:00:00 2001
From: mpv <mpv@opencascade.com>
Date: Wed, 21 Nov 2018 17:46:56 +0300
Subject: [PATCH] Optimization of update of the data tree

---
 src/XGUI/XGUI_DataModel.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/XGUI/XGUI_DataModel.cpp b/src/XGUI/XGUI_DataModel.cpp
index 4e29b2723..fc6096e86 100644
--- a/src/XGUI/XGUI_DataModel.cpp
+++ b/src/XGUI/XGUI_DataModel.cpp
@@ -139,14 +139,14 @@ void XGUI_DataModel::processEvent(const std::shared_ptr<Events_Message>& theMess
       rebuildDataTree();
     }
     else {
-      QTreeNodesList aParents;
+      QSet<ModuleBase_ITreeNode*> aParents;
       foreach(ObjectPtr aObj, aCreated) {
         ModuleBase_ITreeNode* aNode = myRoot->subNode(aObj);
         if (aNode) {
           if (aNode->parent())
             aNode = aNode->parent();
           if (!aParents.contains(aNode))
-            aParents.append(aNode);
+            aParents.insert(aNode);
         }
       }
       foreach(ModuleBase_ITreeNode* aNode, aParents) {
-- 
2.39.2