From a7b90434e6b9288366a4219ec4439508dcd8530b Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Wed, 3 Feb 2021 11:52:56 +0300
Subject: [PATCH] bos #20455 [CEA20480] HEXABLOCK - Crash after New Study

---
 src/HEXABLOCKGUI/HEXABLOCKGUI.cxx | 12 +++++++++++-
 src/HEXABLOCKGUI/HEXABLOCKGUI.hxx |  3 ++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/HEXABLOCKGUI/HEXABLOCKGUI.cxx b/src/HEXABLOCKGUI/HEXABLOCKGUI.cxx
index b01745b..42e4fcd 100644
--- a/src/HEXABLOCKGUI/HEXABLOCKGUI.cxx
+++ b/src/HEXABLOCKGUI/HEXABLOCKGUI.cxx
@@ -142,7 +142,7 @@ HEXABLOCKGUI::HEXABLOCKGUI() :
           _dwAssociation(0),
           _dwGroups(0),
           _dwMesh(0),
-          _dwObjectBrowser(0),
+//          _dwObjectBrowser(0),
           _dwInputPanel(0),
           _patternDataTreeView(0),
 //          _patternBuilderTreeView(0),
@@ -408,6 +408,16 @@ bool HEXABLOCKGUI::deactivateModule( SUIT_Study* theStudy )
 
     hideActor();
 
+    if(currentOccGView) {
+      delete currentOccGView;
+      currentOccGView = NULL;
+    }
+
+    if(currentDocGView) {
+      delete currentDocGView;
+      currentDocGView = NULL;
+    }
+
     return bOk;
 }
 
diff --git a/src/HEXABLOCKGUI/HEXABLOCKGUI.hxx b/src/HEXABLOCKGUI/HEXABLOCKGUI.hxx
index f3cfd72..15c6555 100644
--- a/src/HEXABLOCKGUI/HEXABLOCKGUI.hxx
+++ b/src/HEXABLOCKGUI/HEXABLOCKGUI.hxx
@@ -26,6 +26,7 @@
 #include <map>
 #include <set>
 
+#include <QPointer>
 #include <QTreeView>
 #include <QModelIndex>
 #include <QDockWidget>
@@ -342,7 +343,7 @@ private:
   QDockWidget *_dwAssociation;   // Hexablock association edition
   QDockWidget *_dwGroups;        // Hexablock groups edition
   QDockWidget *_dwMesh;          // Hexablock meshing edtion
-  QDockWidget *_dwObjectBrowser; // Salome study
+  QPointer<QDockWidget> _dwObjectBrowser; // Salome study
   QDockWidget *_dwInputPanel;    // user Input
 
 
-- 
2.39.2