From 09d78f2e4795679d173374fd7e8996ac5d8d523b Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Thu, 12 Jul 2007 09:22:07 +0000
Subject: [PATCH] *** empty log message ***

---
 src/Qtx/QtxPopupMgr.cxx | 16 ++++++++++++++++
 src/Qtx/QtxPopupMgr.h   |  3 +++
 2 files changed, 19 insertions(+)

diff --git a/src/Qtx/QtxPopupMgr.cxx b/src/Qtx/QtxPopupMgr.cxx
index 3efd99ae1..e418300ff 100644
--- a/src/Qtx/QtxPopupMgr.cxx
+++ b/src/Qtx/QtxPopupMgr.cxx
@@ -290,6 +290,8 @@ void QtxPopupMgr::setSelection( QtxPopupSelection* sel )
 
   if ( mySelection )
     mySelection->setParent( this );
+  connect( mySelection, SIGNAL( destroyed( QObject* ) ), 
+	   this,        SLOT( onSelectionDestroyed( QObject* ) ) );
 
   QtxActionMgr::triggerUpdate();
 }
@@ -625,6 +627,20 @@ QVariant QtxPopupMgr::parameter( const QString& name, const int idx ) const
   return val;
 }
 
+/*!
+  \brief Called when selection is destroyed.
+  
+  Prevents crashes when the selection object is destroyed outside the
+  popup manager.
+
+  \param o selection object being destroyed
+*/
+void QtxPopupMgr::onSelectionDestroyed( QObject* o )
+{
+  if ( o == mySelection )
+    mySelection = 0;
+}
+
 /*!
   \class QtxPopupSelection
   \brief This class is a part of the popup menu management system. 
diff --git a/src/Qtx/QtxPopupMgr.h b/src/Qtx/QtxPopupMgr.h
index 2dbea1280..9759f8c95 100644
--- a/src/Qtx/QtxPopupMgr.h
+++ b/src/Qtx/QtxPopupMgr.h
@@ -86,6 +86,9 @@ private:
   bool               result( QtxEvalParser* p ) const;
   QVariant           parameter( const QString&, const int = -1 ) const;
 
+private slots:
+  void               onSelectionDestroyed( QObject* );
+
 private:
   typedef QMap<RuleType, QtxEvalExpr*> ExprMap;
   typedef QMap<QAction*, ExprMap>      RuleMap;
-- 
2.39.2