follow various events related to playhead priority (loop changes, parameter changes); remove debug output

libs/ardour/session.cc

@@ -1451,6 +1451,19 @@ Session::auto_loop_changed (Location* location)
 		clear_events (SessionEvent::AutoLoop);
 	}
 
+	/* possibly move playhead if not rolling; if we are rolling we'll move
+	   to the loop start on stop if that is appropriate.
+	 */
+
+	framepos_t pos;
+
+	if (!transport_rolling() && select_playhead_priority_target (pos)) {
+		if (pos == location->start()) {
+			request_locate (pos);
+		}
+	}
+
+	
 	last_loopend = location->end();
 	set_dirty ();
 }
@@ -6115,7 +6128,6 @@ Session::reconnect_ltc_output ()
 void
 Session::set_range_selection (framepos_t start, framepos_t end)
 {
-	cerr << "set range selection " << start << " .. " << end << endl;
 	_range_selection = Evoral::Range<framepos_t> (start, end);
 	follow_playhead_priority ();
 }

libs/ardour/session_state.cc

@@ -3645,6 +3645,8 @@ Session::config_changed (std::string p, bool ours)
 		reconnect_ltc_output ();
 	} else if (p == "timecode-generator-offset") {
 		ltc_tx_parse_offset();
+	} else if (p == "auto-return-target-list") {
+		follow_playhead_priority ();
 	}
 
 	set_dirty ();

libs/ardour/session_transport.cc

@@ -500,7 +500,7 @@ Session::select_playhead_priority_target (framepos_t& jump_to)
 	jump_to = -1;
 
 	AutoReturnTarget autoreturn = Config->get_auto_return_target_list ();
-	
+
 	if (!autoreturn) {
 		return false;
 	}