fdo#31309 Taskpane items visibility can't be restored

Change-Id: I9959b8e0a21252638a4f39f88bf5049ea905f4bb
Reviewed-on: https://gerrit.libreoffice.org/1231
Reviewed-by: Lennard Wasserthal <Wasserthal@nefkom.net>
Reviewed-by: Kohei Yoshida <kohei.yoshida@gmail.com>
Tested-by: Kohei Yoshida <kohei.yoshida@gmail.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/sfx2/source/dialog/taskpane.cxx b/sfx2/source/dialog/taskpane.cxx
index a92d27e0330d..cdc6f22f7bf3 100644
--- a/sfx2/source/dialog/taskpane.cxx
+++ b/sfx2/source/dialog/taskpane.cxx
@@ -958,15 +958,16 @@ namespace sfx2
     TaskPaneController_Impl::~TaskPaneController_Impl()
     {
         m_rTaskPane.GetPanelDeck().RemoveListener( *this );
+        int i = 0;
 
         // remove the panels which are not under the control of the panel deck currently
         for (   PanelDescriptors::iterator panelPos = m_aPanelRepository.begin();
                 panelPos != m_aPanelRepository.end();
-                ++panelPos
+                ++panelPos, ++i
             )
         {
             if ( panelPos->bHidden )
-                panelPos->pPanel->Dispose();
+                impl_togglePanelVisibility( i );
         }
         m_aPanelRepository.clear();
     }