- if (!rv.region.envelope_active()) {
- XMLNode &before = rv.region.get_state();
- rv.region.set_envelope_active(true);
- XMLNode &after = rv.region.get_state();
- trackview.session().add_command(MementoCommand<AudioRegion>(rv.region, before, after));
+ if (!rv.audio_region().envelope_active()) {
+ XMLNode &before = rv.audio_region().get_state();
+ rv.audio_region().set_envelope_active(true);
+ XMLNode &after = rv.audio_region().get_state();
+ trackview.session().add_command(new MementoCommand<AudioRegion>(rv.audio_region(), before, after));