From: rnv <rnv@opencascade.com>
Date: Fri, 1 Jul 2016 12:14:05 +0000 (+0300)
Subject: Fix flickering in the OCC Viewer.
X-Git-Tag: V8_1_0a1~3
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=ef3a24e6ace039b31baf2569121f6f90c195a967;p=modules%2Fgui.git

Fix flickering in the OCC Viewer.
---

diff --git a/src/OCCViewer/OCCViewer_ViewPort.cxx b/src/OCCViewer/OCCViewer_ViewPort.cxx
index 0ce25d0df..d6cca3173 100755
--- a/src/OCCViewer/OCCViewer_ViewPort.cxx
+++ b/src/OCCViewer/OCCViewer_ViewPort.cxx
@@ -218,7 +218,7 @@ void OCCViewer_ViewPort::initialize()
   setBackgroundRole( QPalette::NoRole );//NoBackground );
   // set focus policy to threat QContextMenuEvent from keyboard  
   setFocusPolicy( Qt::StrongFocus );
-#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0) && OCC_VERSION_LARGE < 0x07000000
+#if (QT_VERSION < QT_VERSION_CHECK(5, 0, 0) && OCC_VERSION_LARGE < 0x07000000) || QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
   setAttribute( Qt::WA_PaintOnScreen );
 #endif
   setAttribute( Qt::WA_NoSystemBackground );