X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fdesigner%2Fslopetool.cpp;h=ef96e558d08f697dd9219c99629b2779583b517a;hb=92c6b7a632cb6f380802114abcb4739fd0029261;hp=d4a6ffb770f7b5fecd38b2b5c6e14544efa63e94;hpb=11c68656ac53318801dcb36078509a07ae2c2a94;p=r2c2.git

diff --git a/source/designer/slopetool.cpp b/source/designer/slopetool.cpp
index d4a6ffb..ef96e55 100644
--- a/source/designer/slopetool.cpp
+++ b/source/designer/slopetool.cpp
@@ -9,6 +9,13 @@ SlopeTool::SlopeTool(Designer &d, Input::Keyboard &k, Input::Mouse &m, const set
 	Tool(d, k, m),
 	total_length(0)
 {
+	if(objects.empty())
+	{
+		set_status("Nothing selected");
+		set_done(false);
+		return;
+	}
+
 	for(set<Object *>::const_iterator i=objects.begin(); i!=objects.end(); ++i)
 		if(!dynamic_cast<Track *>(*i) || (*i)->get_n_link_slots()!=2)
 		{