Allow Insert Time option to move tempos and time sig changes, as per #1951 (thanks carlh)

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@5150 d708f5d6-7413-0410-9779-e7cbd77b26cf

2 files changed, 17 insertions, 0 deletions

diff --git a/libs/ardour/ardour/tempo.h b/libs/ardour/ardour/tempo.h
index c4915072c5..23f18eda57 100644
--- a/libs/ardour/ardour/tempo.h
+++ b/libs/ardour/ardour/tempo.h
@@ -281,6 +281,8 @@ class TempoMap : public PBD::StatefulDestructible
 	void change_existing_tempo_at (nframes_t, double bpm, double note_type);
 	void change_initial_tempo (double bpm, double note_type);
 
+	void insert_time( nframes_t where, nframes_t amount);
+	
 	int n_tempos () const;
 	int n_meters () const;
 
diff --git a/libs/ardour/tempo.cc b/libs/ardour/tempo.cc
index ab7b7c096e..4b9ac61e49 100644
--- a/libs/ardour/tempo.cc
+++ b/libs/ardour/tempo.cc
@@ -529,6 +529,21 @@ TempoMap::change_initial_tempo (double beats_per_minute, double note_type)
 }
 
 void
+TempoMap::insert_time (nframes_t where, nframes_t amount)
+{
+	for (Metrics::iterator i = metrics->begin(); i != metrics->end(); ++i) {
+		if ((*i)->frame() >= where) {
+			(*i)->set_frame ((*i)->frame() + amount);
+		}
+	}
+
+	timestamp_metrics (false);
+	
+	StateChanged (Change (0));
+}
+
+
+void
 TempoMap::change_existing_tempo_at (nframes_t where, double beats_per_minute, double note_type)
 {
 	Tempo newtempo (beats_per_minute, note_type);