From 4fe8215d0fd6e8587af30bc32eb47658f14d1f50 Mon Sep 17 00:00:00 2001
From: triplus <triplus@users.noreply.github.com>
Date: Sun, 26 Apr 2020 15:55:06 +0200
Subject: [PATCH] Support for grouped dragging of dockwidgets

Forum discussion:
https://forum.freecadweb.org/viewtopic.php?f=9&t=45697
---
 src/Gui/MainWindow.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Gui/MainWindow.cpp b/src/Gui/MainWindow.cpp
index 484295f5b8..41a15ca259 100644
--- a/src/Gui/MainWindow.cpp
+++ b/src/Gui/MainWindow.cpp
@@ -288,6 +288,12 @@ MainWindow::MainWindow(QWidget * parent, Qt::WindowFlags f)
     // global access 
     instance = this;
 
+    // support for grouped dragging of dockwidgets
+    // https://woboq.com/blog/qdockwidget-changes-in-56.html
+#if QT_VERSION >= 0x050600
+    setDockOptions(dockOptions() | QMainWindow::GroupedDragging);
+#endif
+
     // Create the layout containing the workspace and a tab bar
     d->mdiArea = new QMdiArea();
     // Movable tabs