# HG changeset patch
# User Chris Cannam
# Date 1593511016 -3600
# Node ID c6f5c822b10de029784b1a6cf0b9adc7c2e3af3a
# Parent  fe9a643b83bfc434b47c41e1c4281ab99ff05947
Fix potential divide-by-zero (depending on a race elsewhere)

diff -r fe9a643b83bf -r c6f5c822b10d view/PaneStack.cpp
--- a/view/PaneStack.cpp	Thu Jun 18 13:45:11 2020 +0100
+++ b/view/PaneStack.cpp	Tue Jun 30 10:56:56 2020 +0100
@@ -253,6 +253,7 @@
     if (!(m_options & int(Option::ShowAlignmentViews))) return;
     if (!(m_options & int(Option::NoUserResize))) return;
     if (!isVisible()) return;
+    if (m_panes.empty()) return;
 
     int heightPerPane = forMyHeight / int(m_panes.size());