From fad1b2ac20ac6a4f120e722adf62bc77b820220f Mon Sep 17 00:00:00 2001
From: ouv <ouv@opencascade.com>
Date: Mon, 21 Apr 2008 16:23:50 +0000
Subject: [PATCH] Bug IPAL19264 - Qt4 porting. Application crashes after
 deletion of all entities of exploded shape

---
 src/Qtx/QtxTreeView.cxx | 12 ++++++++++++
 src/Qtx/QtxTreeView.h   |  1 +
 2 files changed, 13 insertions(+)

diff --git a/src/Qtx/QtxTreeView.cxx b/src/Qtx/QtxTreeView.cxx
index 09100e5a7..c1dfc56b9 100644
--- a/src/Qtx/QtxTreeView.cxx
+++ b/src/Qtx/QtxTreeView.cxx
@@ -295,6 +295,18 @@ void QtxTreeView::selectionChanged( const QItemSelection& selected,
   emit( selectionChanged() );
 }
 
+/*!
+  \brief Called when rows are about to be removed.
+  \param parent model index
+  \param start first row to remove
+  \param end last row to remove
+*/
+void QtxTreeView::rowsAboutToBeRemoved( const QModelIndex& parent, int start, int end )
+{
+  setCurrentIndex( QModelIndex() );
+  QTreeView::rowsAboutToBeRemoved( parent, start, end );
+}
+
 /*!
   \brief Expand/collapse the specified item (recursively).
   \param index model index
diff --git a/src/Qtx/QtxTreeView.h b/src/Qtx/QtxTreeView.h
index 4d5935f8d..be10077a4 100644
--- a/src/Qtx/QtxTreeView.h
+++ b/src/Qtx/QtxTreeView.h
@@ -53,6 +53,7 @@ public:
 
 protected slots:
   void     onHeaderClicked( int );
+  void     rowsAboutToBeRemoved( const QModelIndex&, int, int );
   void     selectionChanged( const QItemSelection&, const QItemSelection& );
   
 protected:
-- 
2.39.2