From fe608bfcef98df407dd8d5210d3ca6a66e6ad1e9 Mon Sep 17 00:00:00 2001
From: Sylwester Kocjan <s.kocjan@o2.pl>
Date: Wed, 8 Sep 2021 22:56:33 +0200
Subject: [PATCH] eeschema, sim: clean signal list when last panel is closed

Fixes: https://gitlab.com/kicad/code/kicad/-/issues/9119
---
 eeschema/sim/sim_plot_frame.cpp | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/eeschema/sim/sim_plot_frame.cpp b/eeschema/sim/sim_plot_frame.cpp
index 71b9b3a5f5..254ae1ffbd 100644
--- a/eeschema/sim/sim_plot_frame.cpp
+++ b/eeschema/sim/sim_plot_frame.cpp
@@ -1350,18 +1350,22 @@ void SIM_PLOT_FRAME::menuTuneUpdate( wxUpdateUIEvent& event )
 
 void SIM_PLOT_FRAME::onPlotClose( wxAuiNotebookEvent& event )
 {
-    int idx = event.GetSelection();
-
-    if( idx == wxNOT_FOUND )
-        return;
-
-    wxCommandEvent dummy;
-    onCursorUpdate( dummy );
 }
 
 
 void SIM_PLOT_FRAME::onPlotClosed( wxAuiNotebookEvent& event )
 {
+    if( m_workbook->GetPageCount() == 0 )
+    {
+        m_signals->ClearAll();
+        m_cursors->ClearAll();
+    }
+    else
+    {
+        updateSignalList();
+        wxCommandEvent dummy;
+        onCursorUpdate( dummy );
+    }
 }