+ TempoSection* tsp = &tm->tempo();
+
+ const double pulse = tsp->pulse();
+ const framepos_t frame = tsp->frame();
+ const PositionLockStyle pls = (tsp->position_lock_style() == AudioTime) ? MusicTime : AudioTime;
+ const Tempo tempo (tsp->note_types_per_minute(), tsp->note_type(), tsp->end_note_types_per_minute());
+
+ begin_reversible_command (_("change tempo lock style"));
+ XMLNode &before = _session->tempo_map().get_state();
+
+ _session->tempo_map().replace_tempo (*tsp, tempo, pulse, frame, pls);
+
+ XMLNode &after = _session->tempo_map().get_state();
+ _session->add_command(new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
+ commit_reversible_command ();
+ }
+}
+/* actally just resets the ts to constant using initial tempo */
+void
+Editor::toggle_tempo_type ()
+{
+ TempoMarker* tm;
+ MeterMarker* mm;
+ dynamic_cast_marker_object (marker_menu_item->get_data ("marker"), &mm, &tm);
+
+ if (tm) {
+ TempoSection* tsp = &tm->tempo();
+
+ const Tempo tempo (tsp->note_types_per_minute(), tsp->note_type());
+ const double pulse = tsp->pulse();
+ const framepos_t frame = tsp->frame();
+ const PositionLockStyle pls = tsp->position_lock_style();
+
+ begin_reversible_command (_("set tempo to constant"));
+ XMLNode &before = _session->tempo_map().get_state();
+
+ _session->tempo_map().replace_tempo (*tsp, tempo, pulse, frame, pls);
+
+ XMLNode &after = _session->tempo_map().get_state();
+ _session->add_command(new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
+ commit_reversible_command ();
+ }
+}
+/* clamped locks the previous section end tempo to the start tempo */
+void
+Editor::toggle_tempo_clamped ()
+{
+ TempoMarker* tm;
+ MeterMarker* mm;
+ dynamic_cast_marker_object (marker_menu_item->get_data ("marker"), &mm, &tm);
+
+ if (tm) {
+ begin_reversible_command (_("Clamp Tempo"));
+ XMLNode &before = _session->tempo_map().get_state();
+
+ TempoSection* tsp = &tm->tempo();
+ TempoSection* prev = _session->tempo_map().previous_tempo_section (tsp);
+
+ if (prev) {
+ /* set to the end tempo of the previous section */
+ Tempo new_tempo (prev->end_note_types_per_minute(), prev->note_type(), tsp->end_note_types_per_minute());
+ _session->tempo_map().gui_change_tempo (tsp, new_tempo);