tdf#91543 - TABLE DESIGN window menu option Close causes BASE to crash

Change-Id: Ib169950f4e33dc71db66fd9a938838b568d2cc22
(cherry picked from commit 15e64391)

dbaccess/source/ui/control/FieldDescControl.cxx

@@ -208,8 +208,8 @@ void OFieldDescControl::dispose()
     m_pType.clear();
     m_pAutoIncrementValue.clear();
     pFormat.clear();
-    m_pVertScroll.clear();
-    m_pHorzScroll.clear();
+    m_pVertScroll.disposeAndClear();
+    m_pHorzScroll.disposeAndClear();
     TabPage::dispose();
 }
 

dbaccess/source/ui/tabledesign/TEditControl.cxx

@@ -85,7 +85,11 @@ OTableEditorCtrl::ClipboardInvalidator::ClipboardInvalidator(sal_uLong nTimeout,
 OTableEditorCtrl::ClipboardInvalidator::~ClipboardInvalidator()
 {
     m_aInvalidateTimer.Stop();
+}
 
+void OTableEditorCtrl::ClipboardInvalidator::Stop()
+{
+    m_aInvalidateTimer.Stop();
 }
 
 IMPL_LINK_NOARG_TYPED(OTableEditorCtrl::ClipboardInvalidator, OnInvalidate, Timer *, void)
@@ -260,6 +264,8 @@ void OTableEditorCtrl::dispose()
     // Reset the Undo-Manager
     GetUndoManager().Clear();
 
+    m_aInvalidate.Stop();
+
     // Take possible Events from the queue
     if( nCutEvent )
         Application::RemoveUserEvent( nCutEvent );

dbaccess/source/ui/tabledesign/TEditControl.hxx

@@ -76,6 +76,7 @@ namespace dbaui
         public:
             ClipboardInvalidator(sal_uLong nTimeout,OTableEditorCtrl*);
             ~ClipboardInvalidator();
+            void Stop();
 
         protected:
             DECL_LINK_TYPED(OnInvalidate, Timer*, void);