X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibr2c2%2Ftracktype.cpp;h=c2740f1d39b33ccfe10f819863ea26da220544f8;hb=81ee4fbd16b472892b67b35ea85956423a2247ed;hp=3c6876b0cc8b5bd72a7e0f476f45b6d631f2aa6a;hpb=93c148ff88ba2c8266b44c336ba7ddd948010de7;p=r2c2.git

diff --git a/source/libr2c2/tracktype.cpp b/source/libr2c2/tracktype.cpp
index 3c6876b..c2740f1 100644
--- a/source/libr2c2/tracktype.cpp
+++ b/source/libr2c2/tracktype.cpp
@@ -8,16 +8,23 @@ using namespace Msp;
 
 namespace R2C2 {
 
-TrackType::TrackType(const ArticleNumber &an, const TrackAppearance &ta):
+TrackType::TrackType(const ArticleNumber &an, const TrackAppearance *ta):
 	ObjectType(an),
 	appearance(ta),
 	state_bits(0),
 	autofit_preference(1)
 { }
 
+const TrackAppearance &TrackType::get_appearance() const
+{
+	if(!appearance)
+		throw logic_error("no appearance");
+	return *appearance;
+}
+
 float TrackType::get_gauge() const
 {
-	return appearance.get_gauge();
+	return get_appearance().get_gauge();
 }
 
 float TrackType::get_total_length() const