From 7797c13131574f369e09970834f96d67e11a5e1d Mon Sep 17 00:00:00 2001
From: Sergio Martins <sergio.martins@kdab.com>
Date: Tue, 29 Nov 2016 18:58:55 +0000
Subject: QDockWidgetGroupWindow now honors custom title bar

When you change tab it will loose or gain native window decos
depending on if the current dock widget has them or not.

Change-Id: I1171f43fa5ee897ce7d695fc447255dcb0d1d5a1
Task-Id: QTBUG-56866
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
---
 src/widgets/widgets/qdockwidget.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'src/widgets/widgets/qdockwidget.cpp')

diff --git a/src/widgets/widgets/qdockwidget.cpp b/src/widgets/widgets/qdockwidget.cpp
index c9cb826213..53cb21186f 100644
--- a/src/widgets/widgets/qdockwidget.cpp
+++ b/src/widgets/widgets/qdockwidget.cpp
@@ -219,8 +219,10 @@ QDockWidgetLayout::~QDockWidgetLayout()
 bool QDockWidgetLayout::nativeWindowDeco() const
 {
     bool floating = parentWidget()->isWindow();
-    if (!floating && qobject_cast<QDockWidgetGroupWindow*>(parentWidget()->parentWidget()))
-        return wmSupportsNativeWindowDeco();
+    if (!floating) {
+        if (auto groupWindow = qobject_cast<const QDockWidgetGroupWindow*>(parentWidget()->parentWidget()))
+            return groupWindow->hasNativeDecos();
+    }
     return nativeWindowDeco(floating);
 }
 
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