fix up mess with unassigned Playlist::orig_track_id

git-svn-id: svn://localhost/ardour2/branches/3.0@10998 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/ardour/ardour/audio_track.h

@@ -42,7 +42,7 @@ class AudioTrack : public Track
 	int roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
 	          int declick, bool& need_butler);
 
-	void use_new_diskstream ();
+	boost::shared_ptr<Diskstream> create_diskstream ();
 	void set_diskstream (boost::shared_ptr<Diskstream>);
 
 	DataType data_type () const {

libs/ardour/ardour/midi_track.h

@@ -46,7 +46,7 @@ public:
 	void realtime_handle_transport_stopped ();
 	void realtime_locate ();
 
-	void use_new_diskstream ();
+	boost::shared_ptr<Diskstream> create_diskstream ();
 	void set_diskstream (boost::shared_ptr<Diskstream>);
 	void set_record_enabled (bool yn, void *src);
 

libs/ardour/ardour/playlist.h

@@ -202,7 +202,7 @@ public:
 	void lower_region_to_bottom (boost::shared_ptr<Region>);
 
 	const PBD::ID& get_orig_track_id () const { return _orig_track_id; }
-	void set_orig_track_id (const PBD::ID& did) { _orig_track_id = did; }
+	void set_orig_track_id (const PBD::ID& did);
 
 	/* destructive editing */
 

libs/ardour/ardour/track.h

@@ -69,7 +69,8 @@ class Track : public Route, public PublicDiskstream
 
 	bool can_record();
 
-	virtual void use_new_diskstream () = 0;
+	void use_new_diskstream ();
+	virtual boost::shared_ptr<Diskstream> create_diskstream() = 0;
 	virtual void set_diskstream (boost::shared_ptr<Diskstream>);
 
 	void set_latency_compensation (framecnt_t);

libs/ardour/audio_track.cc

@@ -61,8 +61,8 @@ AudioTrack::~AudioTrack ()
 {
 }
 
-void
-AudioTrack::use_new_diskstream ()
+boost::shared_ptr<Diskstream>
+AudioTrack::create_diskstream ()
 {
 	AudioDiskstream::Flag dflags = AudioDiskstream::Flag (0);
 
@@ -78,13 +78,7 @@ AudioTrack::use_new_diskstream ()
 		dflags = AudioDiskstream::Flag(dflags | AudioDiskstream::NonLayered);
 	}
 
-	AudioDiskstream* dsp (new AudioDiskstream (_session, name(), dflags));
-	boost::shared_ptr<AudioDiskstream> ds (dsp);
-
-	ds->do_refill_with_alloc ();
-	ds->set_block_size (_session.get_block_size ());
-
-	set_diskstream (ds);
+	return boost::shared_ptr<AudioDiskstream> (new AudioDiskstream (_session, name(), dflags));
 }
 
 void

libs/ardour/midi_track.cc

@@ -77,8 +77,8 @@ MidiTrack::init ()
 	return 0;
 }
 
-void
-MidiTrack::use_new_diskstream ()
+boost::shared_ptr<Diskstream>
+MidiTrack::create_diskstream ()
 {
 	MidiDiskstream::Flag dflags = MidiDiskstream::Flag (0);
 
@@ -90,13 +90,10 @@ MidiTrack::use_new_diskstream ()
 
 	assert(_mode != Destructive);
 
-	boost::shared_ptr<MidiDiskstream> ds (new MidiDiskstream (_session, name(), dflags));
-	ds->do_refill_with_alloc ();
-	ds->set_block_size (_session.get_block_size ());
-
-	set_diskstream (ds);
+	return boost::shared_ptr<Diskstream> (new MidiDiskstream (_session, name(), dflags));
 }
 
+
 void
 MidiTrack::set_record_enabled (bool yn, void *src)
 {

libs/ardour/playlist.cc

@@ -3391,3 +3391,9 @@ Playlist::count_joined_regions () const
 
 	return cnt;
 }
+
+void
+Playlist::set_orig_track_id (const PBD::ID& id)
+{
+	_orig_track_id = id;
+}

libs/ardour/track.cc

@@ -67,6 +67,18 @@ Track::init ()
         return 0;
 }
 
+void
+Track::use_new_diskstream ()
+{
+	boost::shared_ptr<Diskstream> ds = create_diskstream ();
+
+	ds->do_refill_with_alloc ();
+	ds->set_block_size (_session.get_block_size ());
+	ds->playlist()->set_orig_track_id (id());
+
+	set_diskstream (ds);
+}
+
 XMLNode&
 Track::get_state ()
 {
@@ -692,7 +704,11 @@ Track::playlist_modified ()
 int
 Track::use_playlist (boost::shared_ptr<Playlist> p)
 {
-	return _diskstream->use_playlist (p);
+	int ret = _diskstream->use_playlist (p);
+	if (ret == 0) {
+		p->set_orig_track_id (id());
+	}
+	return ret;
 }
 
 int