From 9b4b153eadd847c1698c74045264e82d7d2a8569 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Mon, 2 Apr 2018 13:43:35 +0200
Subject: [PATCH] MDIView: remove from parent before close

---
 src/Gui/MDIView.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Gui/MDIView.cpp b/src/Gui/MDIView.cpp
index 6bf2aef74a..1f6421429a 100644
--- a/src/Gui/MDIView.cpp
+++ b/src/Gui/MDIView.cpp
@@ -94,6 +94,10 @@ void MDIView::deleteSelf()
     QWidget* parent = this->parentWidget();
     if (qobject_cast<QMdiSubWindow*>(parent)) {
         // https://forum.freecadweb.org/viewtopic.php?f=22&t=23070
+#if QT_VERSION < 0x050000
+        // With Qt5 this would lead to some annoying flickering
+        getMainWindow()->removeWindow(this);
+#endif
         parent->close();
     }
     else {