From 0f68f8920573cdce1729a285a92ac8582df32841 Mon Sep 17 00:00:00 2001
From: Ulf Hermann <ulf.hermann@theqtcompany.com>
Date: Tue, 27 Oct 2015 15:25:42 +0100
Subject: QtWidgets: Do hide/show via WA_OutsideWSRange for native widgets
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If a native widget has a width or height of 0 we don't have to
invalidate its backing store as that is done by the window
system. Certain applications rely on ... interesting ... behavior
of certain window systems in this case.

Task-number: QTBUG-48321
Change-Id: I78ef29975181ee22429c9bd4b11d96d9e68b7a9c
Reviewed-by: Dmitry Shachnev <mitya57@gmail.com>
Reviewed-by: Alexander Volkov <a.volkov@rusbitech.ru>
Reviewed-by: Lisandro Damián Nicanor Pérez Meyer <perezmeyer@gmail.com>
Reviewed-by: Paul Olav Tvete <paul.tvete@theqtcompany.com>
---
 src/widgets/kernel/qwidget.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 7734715..4286130 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -7169,7 +7169,7 @@ void QWidgetPrivate::setGeometry_sys(int x, int y, int w, int h, bool isMove)

     bool needsShow = false;

-    if (q->isWindow()) {
+    if (q->isWindow() || q->windowHandle()) {
         if (!(data.window_state & Qt::WindowFullScreen) && (w == 0 || h == 0)) {
             q->setAttribute(Qt::WA_OutsideWSRange, true);
             if (q->isVisible() && q->testAttribute(Qt::WA_Mapped))
--
2.6.3