+}
+
+void Layout::add_route(Route &r)
+{
+ if(routes.insert(&r).second)
+ signal_route_added.emit(r);
+}
+
+Route &Layout::get_route(const string &name) const
+{
+ for(set<Route *>::const_iterator i=routes.begin(); i!=routes.end(); ++i)
+ if((*i)->get_name()==name)
+ return **i;
+ throw KeyError("Unknown route", name);
+}
+
+void Layout::remove_route(Route &r)
+{
+ if(routes.erase(&r))
+ signal_route_removed.emit(r);
+}
+
+void Layout::save(const string &fn)
+{
+ IO::BufferedFile out(fn, IO::M_WRITE);
+ DataFile::Writer writer(out);
+
+ if(!base.empty())
+ writer.write((DataFile::Statement("base"), base));
+
+ for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
+ {
+ DataFile::Statement st("track");
+ st.append((*i)->get_type().get_article_number());
+ (*i)->save(st.sub);
+ writer.write(st);
+ }
+
+ for(set<Route *>::iterator i=routes.begin(); i!=routes.end(); ++i)
+ {
+ DataFile::Statement st("route");
+ st.append((*i)->get_name());
+ (*i)->save(st.sub);
+ writer.write(st);