From 4e6de8b5254a1546d9d6aa5119513c8902a00cf2 Mon Sep 17 00:00:00 2001
From: imn <imn@opencascade.com>
Date: Fri, 27 Mar 2015 17:47:48 +0300
Subject: [PATCH] INT PAL 0052623: OCC view blinking when using polyline
 sketcher

---
 src/Qtx/QtxWorkstack.cxx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Qtx/QtxWorkstack.cxx b/src/Qtx/QtxWorkstack.cxx
index 99c776061..b4abe7b8f 100644
--- a/src/Qtx/QtxWorkstack.cxx
+++ b/src/Qtx/QtxWorkstack.cxx
@@ -953,6 +953,11 @@ void QtxWorkstackArea::customEvent( QEvent* e )
   {
   case ActivateWidget:
     myBar->updateActiveState();
+    // IMN 27/03/2015: This workaround caused by the bug INT PAL 0052623: OCC view blinking when
+    // using polyline sketcher which is reproduced on Unix systems with qt-4.8.4.
+    myStack->setUpdatesEnabled( false );
+    updateCurrent();
+    myStack->setUpdatesEnabled( true );
     emit activated( activeWidget() );
     break;
   case FocusWidget:
-- 
2.39.2