X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibr2c2%2Ftrackchain.h;h=7d3c518a92842aa076350b701182b7fd6054df86;hb=c52c0e591be55cb2c7251689c69c642e3cb3601c;hp=0338bab2d9d0e2dfca079b4039cbcdb9e2f51cb6;hpb=1124a98ce5e1edee1904eeec089976d446601afd;p=r2c2.git

diff --git a/source/libr2c2/trackchain.h b/source/libr2c2/trackchain.h
index 0338bab..7d3c518 100644
--- a/source/libr2c2/trackchain.h
+++ b/source/libr2c2/trackchain.h
@@ -4,6 +4,7 @@
 #include <set>
 #include <stdexcept>
 #include <sigc++/trackable.h>
+#include <msp/datafile/statement.h>
 #include "trackiter.h"
 
 namespace R2C2 {
@@ -38,6 +39,7 @@ public:
 	sigc::signal<void, Track &> signal_track_added;
 	sigc::signal<void, Track &> signal_track_removed;
 
+protected:
 	Layout &layout;
 	std::string name;
 	TrackSet tracks;
@@ -61,9 +63,13 @@ private:
 public:
 	const TrackSet &get_tracks() const { return tracks; }
 	bool has_track(Track &) const;
+	bool is_loop() const;
 
 private:
 	void object_removed(Object &);
+
+public:
+	virtual Msp::DataFile::Statement save_reference() const = 0;
 };
 
 } // namespace R2C2