From 56c6e4b772bfaf2b1f4c74f68e1d2a61379e0e64 Mon Sep 17 00:00:00 2001
From: stv <stv@opencascade.com>
Date: Thu, 15 Dec 2005 07:35:35 +0000
Subject: [PATCH] Added checking of the validator pointer.

---
 src/Qtx/QtxDblSpinBox.cxx | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Qtx/QtxDblSpinBox.cxx b/src/Qtx/QtxDblSpinBox.cxx
index 235218ff3..5b4903fc5 100755
--- a/src/Qtx/QtxDblSpinBox.cxx
+++ b/src/Qtx/QtxDblSpinBox.cxx
@@ -360,8 +360,9 @@ void QtxDblSpinBox::rangeChange()
   double max = QMAX( myMin, myMax );
   myMin = min;
   myMax = max;
-  if ( validator()->inherits( "QDoubleValidator" ) )
-    ((QDoubleValidator*)validator())->setRange( myMin, myMax );
+  QDoubleValidator* v = ::qt_cast<QDoubleValidator*>( validator() );
+  if ( v )
+    v->setRange( myMin, myMax );
 
 	if ( myMin == myMax )
 		QSpinBox::setRange( 0, 0 );
-- 
2.39.2