From 233152eb5cb05a1b296bdb96bbd6b3133128770f Mon Sep 17 00:00:00 2001
From: asl <asl@opencascade.com>
Date: Tue, 15 Nov 2005 07:27:54 +0000
Subject: [PATCH] PAL10328 - crash if user try to change number of isolines in
 OCC and apply changes

---
 src/LightApp/LightApp_Application.cxx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/LightApp/LightApp_Application.cxx b/src/LightApp/LightApp_Application.cxx
index 19d6fc62e..0ba2a8bac 100644
--- a/src/LightApp/LightApp_Application.cxx
+++ b/src/LightApp/LightApp_Application.cxx
@@ -1610,7 +1610,11 @@ void LightApp_Application::preferencesChanged( const QString& sec, const QString
     int u = resMgr->integerValue( sec, "iso_number_u" );
     int v = resMgr->integerValue( sec, "iso_number_v" );
     for ( QPtrListIterator<SUIT_ViewManager> it( lst ); it.current(); ++it )
-      ((OCCViewer_Viewer*)it.current())->setIsos( u, v );
+    {
+      OCCViewer_ViewManager* mgr = dynamic_cast<OCCViewer_ViewManager*>( it.current() );
+      if( mgr && mgr->getOCCViewer() )
+	mgr->getOCCViewer()->setIsos( u, v );
+    }
   }
 
   if( sec=="ObjectBrowser" )
-- 
2.39.2