Don't crash if a train has no router

[r2c2.git] / source / designer / zonebar.cpp

diff --git a/source/designer/zonebar.cpp b/source/designer/zonebar.cpp
index f97554c8048c6937e87ded369fe5d11023acc2de..3b6b2125804b996467e8b0d03230ff43748ee3f1 100644 (file)
--- a/source/designer/zonebar.cpp
+++ b/source/designer/zonebar.cpp
@@ -92,8 +92,9 @@ void Zonebar::track_chain_removed(TrackChain &chain)
        }
 }
 
-void Zonebar::zone_renamed(Zone &zone, const string &group, const string &, unsigned)
+void Zonebar::zone_renamed(Zone &zone, const string &)
 {
+       const string &group = zone.get_group();
        const set<Zone *> &lzones = designer.get_layout().get_all<Zone>();
        set<string> group_names;
        for(set<Zone *>::const_iterator i=lzones.begin(); i!=lzones.end(); ++i)