Add route dialog order hint changes.

Add an option to insert new routes at the top of the list ("First").
Reorder/rename the entries in the dialog.
Session's _order_hint is now the signed int it always wanted to be.

gtk2_ardour/add_route_dialog.cc

@@ -80,11 +80,12 @@ AddRouteDialog::AddRouteDialog ()
 	track_bus_combo.append_text (_("Busses"));
 	track_bus_combo.set_active (0);
 
-	insert_at_combo.append_text (_("Editor Selection"));
-	insert_at_combo.append_text (_("Mixer Selection"));
-	insert_at_combo.append_text (_("End"));
+	insert_at_combo.append_text (_("First"));
+	insert_at_combo.append_text (_("After Editor Selection"));
+	insert_at_combo.append_text (_("After Mixer Selection"));
+	insert_at_combo.append_text (_("Last"));
 
-	insert_at_combo.set_active (0);
+	insert_at_combo.set_active (1);
 
 	VBox* vbox = manage (new VBox);
 	Gtk::Label* l;
@@ -158,7 +159,7 @@ AddRouteDialog::AddRouteDialog ()
 	++n;
 
 	/* New route will be inserted at.. */
-	l = manage (new Label (_("Insert at:"), Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false));
+	l = manage (new Label (_("Insert:"), Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false));
 	table2->attach (*l, 1, 2, n, n + 1, Gtk::FILL, Gtk::EXPAND, 0, 0);
 	table2->attach (insert_at_combo, 2, 3, n, n + 1, Gtk::FILL, Gtk::EXPAND | Gtk::FILL, 0, 0);
 	++n;
@@ -555,13 +556,14 @@ AddRouteDialog::insert_at ()
 {
 	std::string str = insert_at_combo.get_active_text();
 
-	if (str == _("Editor Selection")) {
+	if (str == _("First")) {
+		return First;
+	} else if (str == _("After Editor Selection")) {
 		return EditorSelection;
-	} else if (str == _("Mixer Selection")){
+	} else if (str == _("After Mixer Selection")){
 		return MixerSelection;
 	}
-
-	return End;
+	return Last;
 }
 
 bool

gtk2_ardour/add_route_dialog.h

@@ -70,7 +70,8 @@ class AddRouteDialog : public ArdourDialog
 	enum InsertAt {
 		EditorSelection,
 		MixerSelection,
-		End
+		First,
+		Last
 	};
 	InsertAt insert_at();
 

gtk2_ardour/ardour_ui.cc

@@ -3458,6 +3458,8 @@ ARDOUR_UI::setup_order_hint (AddRouteDialog::InsertAt place)
 
 		if (!mixer->selection().routes.empty()) {
 			order_hint++;
+		} else {
+			return;
 		}
 
 	} else if (place == AddRouteDialog::EditorSelection){
@@ -3470,29 +3472,32 @@ ARDOUR_UI::setup_order_hint (AddRouteDialog::InsertAt place)
 
 		if (!editor->get_selection().tracks.empty()) {
 			order_hint++;
+		} else {
+			return;
 		}
+
+	} else if (place == AddRouteDialog::First) {
+		order_hint = 0;
 	} else {
-		/** AddRouteDialog::End
-		 * an order hint of '0' means place new routes at the end.
-		 * do nothing
+		/** AddRouteDialog::Last
+		 * not setting an order hint will place new routes last.
 		 */
+		return;
 	}
 
 	_session->set_order_hint (order_hint);
 
 	/* create a gap in the existing route order keys to accomodate new routes.*/
-	if (order_hint != 0) {
-		boost::shared_ptr <RouteList> rd = _session->get_routes();
-		for (RouteList::iterator ri = rd->begin(); ri != rd->end(); ++ri) {
-			boost::shared_ptr<Route> rt (*ri);
+	boost::shared_ptr <RouteList> rd = _session->get_routes();
+	for (RouteList::iterator ri = rd->begin(); ri != rd->end(); ++ri) {
+		boost::shared_ptr<Route> rt (*ri);
 
-			if (rt->is_monitor()) {
-				continue;
-			}
+		if (rt->is_monitor()) {
+			continue;
+		}
 
-			if (rt->order_key () >= order_hint) {
-				rt->set_order_key (rt->order_key () + add_route_dialog->count());
-			}
+		if (rt->order_key () >= order_hint) {
+			rt->set_order_key (rt->order_key () + add_route_dialog->count());
 		}
 	}
 }

libs/ardour/ardour/session.h

@@ -243,7 +243,7 @@ class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::Scop
 		bool operator() (boost::shared_ptr<Route>, boost::shared_ptr<Route> b);
 	};
 
-	void set_order_hint (uint32_t order_hint) {_order_hint = order_hint;};
+	void set_order_hint (int32_t order_hint) {_order_hint = order_hint;};
 	void notify_remote_id_change ();
 	void sync_order_keys ();
 
@@ -1677,7 +1677,7 @@ class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::Scop
 	GraphEdges _current_route_graph;
 
 	uint32_t next_control_id () const;
-	uint32_t _order_hint;
+	int32_t _order_hint;
 	bool ignore_route_processor_changes;
 
 	MidiClockTicker* midi_clock;

libs/ardour/session.cc

@@ -266,7 +266,7 @@ Session::Session (AudioEngine &eng,
 	, _step_editors (0)
 	, _suspend_timecode_transmission (0)
 	,  _speakers (new Speakers)
-	, _order_hint (0)
+	, _order_hint (-1)
 	, ignore_route_processor_changes (false)
 	, _scene_changer (0)
 	, _midi_ports (0)
@@ -2554,9 +2554,9 @@ Session::add_routes_inner (RouteList& new_routes, bool input_auto_connect, bool
         ChanCount existing_outputs;
 	uint32_t order = next_control_id();
 
-	if (_order_hint != 0) {
+	if (_order_hint > -1) {
 		order = _order_hint;
-		_order_hint = 0;
+		_order_hint = -1;
 	}
 
         count_existing_track_channels (existing_inputs, existing_outputs);