From 5cbac39558de17b7a1abda19e86f3f7625b9779e Mon Sep 17 00:00:00 2001
From: vsv <vsv@opencascade.com>
Date: Wed, 21 Nov 2018 17:25:33 +0300
Subject: [PATCH] Optimize updating of the tree

---
 src/XGUI/XGUI_DataModel.cpp | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/XGUI/XGUI_DataModel.cpp b/src/XGUI/XGUI_DataModel.cpp
index 4980dd198..4e29b2723 100644
--- a/src/XGUI/XGUI_DataModel.cpp
+++ b/src/XGUI/XGUI_DataModel.cpp
@@ -139,20 +139,20 @@ void XGUI_DataModel::processEvent(const std::shared_ptr<Events_Message>& theMess
       rebuildDataTree();
     }
     else {
+      QTreeNodesList aParents;
       foreach(ObjectPtr aObj, aCreated) {
         ModuleBase_ITreeNode* aNode = myRoot->subNode(aObj);
         if (aNode) {
           if (aNode->parent())
-            aNode->parent()->update();
-          else
-            aNode->update();
-          rebuildDataTree();
-          QModelIndex aFirstIdx = getIndex(aNode, 0);
-          QModelIndex aLastIdx = getIndex(aNode, 2);
-
-          dataChanged(aFirstIdx, aLastIdx);
+            aNode = aNode->parent();
+          if (!aParents.contains(aNode))
+            aParents.append(aNode);
         }
       }
+      foreach(ModuleBase_ITreeNode* aNode, aParents) {
+        aNode->update();
+      }
+      rebuildDataTree();
     }
   }
   else if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_ORDER_UPDATED)) {
-- 
2.39.2