Fix potential crash at exit/close.
[ardour.git] / gtk2_ardour / route_ui.cc
index 074f35a08d4a14ab88201e11992660c448b86d37..1ce6114a3e7621ac5051286d1333a4cc25fc844d 100644 (file)
@@ -17,6 +17,7 @@
 
 */
 
+#include <map>
 #include <boost/algorithm/string.hpp>
 
 #include <gtkmm2ext/gtk_ui.h>
 #include "ardour/vca.h"
 #include "ardour/vca_manager.h"
 #include "ardour/audio_track.h"
+#include "ardour/audio_port.h"
 #include "ardour/audioengine.h"
 #include "ardour/filename_extensions.h"
 #include "ardour/midi_track.h"
 #include "ardour/monitor_control.h"
 #include "ardour/internal_send.h"
+#include "ardour/panner_shell.h"
 #include "ardour/profile.h"
 #include "ardour/phase_control.h"
 #include "ardour/send.h"
 #include "ardour/session.h"
 #include "ardour/template_utils.h"
 
+#include "ardour_button.h"
+#include "ardour_dialog.h"
 #include "ardour_ui.h"
+#include "automation_time_axis.h"
 #include "editor.h"
-#include "route_ui.h"
-#include "ardour_button.h"
-#include "keyboard.h"
-#include "utils.h"
-#include "plugin_pin_dialog.h"
-#include "prompter.h"
+#include "group_tabs.h"
+#include "gui_object.h"
 #include "gui_thread.h"
-#include "ardour_dialog.h"
+#include "keyboard.h"
 #include "latency_gui.h"
 #include "mixer_strip.h"
-#include "automation_time_axis.h"
+#include "plugin_pin_dialog.h"
+#include "prompter.h"
+#include "rgb_macros.h"
 #include "route_time_axis.h"
-#include "group_tabs.h"
+#include "route_ui.h"
 #include "timers.h"
 #include "ui_config.h"
+#include "utils.h"
 
 
-#include "i18n.h"
+#include "pbd/i18n.h"
 using namespace Gtk;
 using namespace Gtkmm2ext;
 using namespace ARDOUR;
@@ -83,7 +88,8 @@ boost::weak_ptr<Route> RouteUI::_showing_sends_to;
 std::string RouteUI::program_port_prefix;
 
 RouteUI::RouteUI (ARDOUR::Session* sess)
-       : AxisView(sess)
+       : monitor_input_button (0)
+       , monitor_disk_button (0)
        , mute_menu(0)
        , solo_menu(0)
        , sends_menu(0)
@@ -100,13 +106,16 @@ RouteUI::RouteUI (ARDOUR::Session* sess)
                boost::to_lower (lpn);
                program_port_prefix = lpn + ":"; // e.g. "ardour:"
        }
-       if (sess) init ();
+
+       if (sess) {
+               init ();
+       }
 }
 
 RouteUI::~RouteUI()
 {
        if (_route) {
-               gui_object_state().remove_node (route_state_id());
+               ARDOUR_UI::instance()->gui_object_state->remove_node (route_state_id());
        }
 
        _route.reset (); /* drop reference to route, so that it can be cleaned up */
@@ -119,6 +128,8 @@ RouteUI::~RouteUI()
        delete comment_window;
        delete input_selector;
        delete output_selector;
+       delete monitor_input_button;
+       delete monitor_disk_button;
        delete _invert_menu;
 
        send_blink_connection.disconnect ();
@@ -150,7 +161,6 @@ RouteUI::init ()
        multiple_mute_change = false;
        multiple_solo_change = false;
        _i_am_the_modifier = 0;
-       vca_button = 0;
 
        input_selector = 0;
        output_selector = 0;
@@ -179,13 +189,13 @@ RouteUI::init ()
        show_sends_button->set_name ("send alert button");
        UI::instance()->set_tip (show_sends_button, _("make mixer strips show sends to this bus"), "");
 
-       monitor_input_button = manage (new ArdourButton (ArdourButton::default_elements));
+       monitor_input_button = new ArdourButton (ArdourButton::default_elements);
        monitor_input_button->set_name ("monitor button");
        monitor_input_button->set_text (_("In"));
        UI::instance()->set_tip (monitor_input_button, _("Monitor input"), "");
        monitor_input_button->set_no_show_all (true);
 
-       monitor_disk_button = manage (new ArdourButton (ArdourButton::default_elements));
+       monitor_disk_button = new ArdourButton (ArdourButton::default_elements);
        monitor_disk_button->set_name ("monitor button");
        monitor_disk_button->set_text (_("Disk"));
        UI::instance()->set_tip (monitor_disk_button, _("Monitor playback"), "");
@@ -197,6 +207,7 @@ RouteUI::init ()
 
        _session->config.ParameterChanged.connect (*this, invalidator (*this), boost::bind (&RouteUI::parameter_changed, this, _1), gui_context());
        Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&RouteUI::parameter_changed, this, _1), gui_context());
+       UIConfiguration::instance().ParameterChanged.connect (sigc::mem_fun (this, &RouteUI::parameter_changed));
 
        rec_enable_button->signal_button_press_event().connect (sigc::mem_fun(*this, &RouteUI::rec_enable_press), false);
        rec_enable_button->signal_button_release_event().connect (sigc::mem_fun(*this, &RouteUI::rec_enable_release), false);
@@ -249,7 +260,7 @@ RouteUI::set_route (boost::shared_ptr<Route> rp)
        _route = rp;
 
        if (set_color_from_route()) {
-               set_color (unique_random_color());
+               set_color (gdk_color_to_rgba (AxisView::unique_random_color ()));
        }
 
        if (self_destruct) {
@@ -274,18 +285,21 @@ RouteUI::set_route (boost::shared_ptr<Route> rp)
        _route->solo_safe_control()->Changed.connect (route_connections, invalidator (*this), boost::bind (&RouteUI::update_solo_display, this), gui_context());
        _route->solo_isolate_control()->Changed.connect (route_connections, invalidator (*this), boost::bind (&RouteUI::update_solo_display, this), gui_context());
        _route->phase_control()->Changed.connect (route_connections, invalidator (*this), boost::bind (&RouteUI::polarity_changed, this), gui_context());
+       _route->fan_out.connect (route_connections, invalidator (*this), boost::bind (&RouteUI::fan_out, this, true, true), gui_context());
 
        if (is_track()) {
                track()->FreezeChange.connect (*this, invalidator (*this), boost::bind (&RouteUI::map_frozen, this), gui_context());
+#ifdef XXX_OLD_DESTRUCTIVE_API_XXX
                track()->TrackModeChanged.connect (route_connections, invalidator (*this), boost::bind (&RouteUI::track_mode_changed, this), gui_context());
+#endif
                track_mode_changed();
        }
 
 
-       _route->PropertyChanged.connect (route_connections, invalidator (*this), boost::bind (&RouteUI::property_changed, this, _1), gui_context());
+       _route->PropertyChanged.connect (route_connections, invalidator (*this), boost::bind (&RouteUI::route_property_changed, this, _1), gui_context());
+       _route->presentation_info().PropertyChanged.connect (route_connections, invalidator (*this), boost::bind (&RouteUI::route_gui_changed, this, _1), gui_context ());
 
        _route->io_changed.connect (route_connections, invalidator (*this), boost::bind (&RouteUI::setup_invert_buttons, this), gui_context ());
-       _route->gui_changed.connect (route_connections, invalidator (*this), boost::bind (&RouteUI::route_gui_changed, this, _1), gui_context ());
 
        if (_session->writable() && is_track()) {
                boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track>(_route);
@@ -343,6 +357,7 @@ RouteUI::set_route (boost::shared_ptr<Route> rp)
        check_rec_enable_sensitivity ();
        maybe_add_route_print_mgr ();
        route_color_changed();
+       route_gui_changed (PropertyChange (Properties::selected));
 }
 
 void
@@ -414,7 +429,6 @@ RouteUI::mute_press (GdkEventButton* ev)
                                        _mute_release->routes = copy;
                                }
 
-                               DisplaySuspender ds;
                                _session->set_controls (route_list_to_control_list (copy, &Stripable::mute_control), _route->muted_by_self() ? 0.0 : 1.0, Controllable::UseGroup);
 
                        } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
@@ -443,7 +457,6 @@ RouteUI::mute_press (GdkEventButton* ev)
                                                _mute_release->routes = rl;
                                        }
 
-                                       DisplaySuspender ds;
                                        _session->set_controls (route_list_to_control_list (rl, &Stripable::mute_control), _route->muted_by_self() ? 0.0 : 1.0, Controllable::InverseGroup);
                                }
 
@@ -458,8 +471,7 @@ RouteUI::mute_press (GdkEventButton* ev)
                                        _mute_release->routes = rl;
                                }
 
-                               _session->set_control (_route->mute_control(), _route->muted_by_self() ? 0.0 : 1.0, Controllable::UseGroup);
-
+                               _route->mute_control()->set_value (!_route->muted_by_self(), Controllable::UseGroup);
                        }
                }
        }
@@ -471,7 +483,6 @@ bool
 RouteUI::mute_release (GdkEventButton* /*ev*/)
 {
        if (_mute_release){
-               DisplaySuspender ds;
                _session->set_controls (route_list_to_control_list (_mute_release->routes, &Stripable::mute_control), _mute_release->active, Controllable::UseGroup);
                delete _mute_release;
                _mute_release = 0;
@@ -571,7 +582,6 @@ RouteUI::solo_press(GdkEventButton* ev)
                                        _solo_release->routes = _session->get_routes ();
                                }
 
-                               DisplaySuspender ds;
                                _session->set_controls (route_list_to_control_list (_session->get_routes(), &Stripable::solo_control), !_route->solo_control()->get_value(), Controllable::UseGroup);
 
                        } else if (Keyboard::modifier_state_contains (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::SecondaryModifier))) {
@@ -596,9 +606,7 @@ RouteUI::solo_press(GdkEventButton* ev)
                                        /* ??? we need a just_one_listen() method */
                                } else {
                                        DisplaySuspender ds;
-                                       boost::shared_ptr<ControlList> cl (new ControlList);
-                                       cl->push_back (_route->solo_control());
-                                       _session->set_controls (cl, 1.0, Controllable::NoGroup);
+                                       _route->solo_control()->set_value (1.0, Controllable::NoGroup);
                                }
 
                        } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
@@ -643,8 +651,6 @@ RouteUI::solo_press(GdkEventButton* ev)
                                                _solo_release->routes = rl;
                                        }
 
-                                       DisplaySuspender ds;
-
                                        _session->set_controls (route_list_to_control_list (rl, &Stripable::solo_control), !_route->self_soloed(), Controllable::InverseGroup);
                                }
 
@@ -662,7 +668,6 @@ RouteUI::solo_press(GdkEventButton* ev)
                                        _solo_release->routes = rl;
                                }
 
-                               DisplaySuspender ds;
                                _session->set_controls (route_list_to_control_list (rl, &Stripable::solo_control), !_route->self_soloed(), Controllable::UseGroup);
                        }
                }
@@ -679,7 +684,6 @@ RouteUI::solo_release (GdkEventButton* /*ev*/)
                if (_solo_release->exclusive) {
 
                } else {
-                       DisplaySuspender ds;
                        _session->set_controls (route_list_to_control_list (_solo_release->routes, &Stripable::solo_control), _solo_release->active ? 1.0 : 0.0, Controllable::UseGroup);
                }
 
@@ -726,7 +730,6 @@ RouteUI::rec_enable_press(GdkEventButton* ev)
 
                } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 
-                       DisplaySuspender ds;
                        _session->set_controls (route_list_to_control_list (_session->get_routes(), &Stripable::rec_enable_control), !track()->rec_enable_control()->get_value(), Controllable::NoGroup);
 
                } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
@@ -742,7 +745,6 @@ RouteUI::rec_enable_press(GdkEventButton* ev)
                                rl.reset (new RouteList);
                                rl->push_back (_route);
 
-                               DisplaySuspender ds;
                                _session->set_controls (route_list_to_control_list (rl, &Stripable::rec_enable_control), !track()->rec_enable_control()->get_value(), Controllable::InverseGroup);
                        }
 
@@ -753,7 +755,7 @@ RouteUI::rec_enable_press(GdkEventButton* ev)
                } else {
 
                        boost::shared_ptr<Track> trk = track();
-                       _session->set_control (trk->rec_enable_control(), !trk->rec_enable_control()->get_value(), Controllable::UseGroup);
+                       trk->rec_enable_control()->set_value (!trk->rec_enable_control()->get_value(), Controllable::UseGroup);
                }
        }
 
@@ -864,7 +866,6 @@ RouteUI::monitor_release (GdkEventButton* ev, MonitorChoice monitor_choice)
                rl->push_back (route());
        }
 
-       DisplaySuspender ds;
        _session->set_controls (route_list_to_control_list (rl, &Stripable::monitoring_control), (double) mc, Controllable::UseGroup);
 
        return false;
@@ -1199,28 +1200,28 @@ RouteUI::update_solo_display ()
                solo_isolated_check->set_active (yn);
        }
 
-        set_button_names ();
+       set_button_names ();
 
-        if (solo_isolated_led) {
-               if (_route->solo_isolate_control()->solo_isolated()) {
+       if (solo_isolated_led) {
+               if (_route->solo_isolate_control()->solo_isolated()) {
                        solo_isolated_led->set_active_state (Gtkmm2ext::ExplicitActive);
                } else {
                        solo_isolated_led->unset_active_state ();
                }
-        }
+       }
 
-        if (solo_safe_led) {
-               if (_route->solo_safe_control()->solo_safe()) {
+       if (solo_safe_led) {
+               if (_route->solo_safe_control()->solo_safe()) {
                        solo_safe_led->set_active_state (Gtkmm2ext::ExplicitActive);
                } else {
                        solo_safe_led->unset_active_state ();
                }
-        }
+       }
 
        solo_button->set_active_state (solo_active_state (_route));
 
-        /* some changes to solo status can affect mute display, so catch up
-         */
+       /* some changes to solo status can affect mute display, so catch up
+        */
 
        update_mute_display ();
 }
@@ -1284,47 +1285,17 @@ RouteUI::update_mute_display ()
         mute_button->set_active_state (mute_active_state (_session, _route));
 }
 
-void
-RouteUI::update_vca_display ()
-{
-       if (!vca_button) {
-               return;
-       }
-
-       VCAList vcas (_session->vca_manager().vcas());
-       string label;
-
-       for (VCAList::iterator v = vcas.begin(); v != vcas.end(); ++v) {
-               if (_route->slaved_to (*v)) {
-                       if (!label.empty()) {
-                               label += ' ';
-                       }
-                       label += PBD::to_string ((*v)->number(), std::dec);
-               }
-       }
-
-       if (label.empty()) {
-               label = _("-vca-");
-               vca_button->set_active_state (Gtkmm2ext::Off);
-       } else {
-               vca_button->set_active_state (Gtkmm2ext::ExplicitActive);
-       }
-
-       vca_button->set_text (label);
-}
 
 void
 RouteUI::route_rec_enable_changed ()
 {
-       blink_rec_display(true);  //this lets the button change "immediately" rather than wait for the next blink
-       update_monitoring_display ();
+       blink_rec_display (true);  //this lets the button change "immediately" rather than wait for the next blink
 }
 
 void
 RouteUI::session_rec_enable_changed ()
 {
-       blink_rec_display(true);  //this lets the button change "immediately" rather than wait for the next blink
-       update_monitoring_display ();
+       blink_rec_display (true);  //this lets the button change "immediately" rather than wait for the next blink
 }
 
 void
@@ -1508,11 +1479,9 @@ RouteUI::solo_isolate_button_release (GdkEventButton* ev)
 
                        if (model) {
                                /* disable isolate for all routes */
-                               DisplaySuspender ds;
                                _session->set_controls (route_list_to_control_list (_session->get_routes(), &Stripable::solo_isolate_control), 0.0, Controllable::NoGroup);
                        } else {
                                /* enable isolate for all routes */
-                               DisplaySuspender ds;
                                _session->set_controls (route_list_to_control_list (_session->get_routes(), &Stripable::solo_isolate_control), 1.0, Controllable::NoGroup);
                        }
 
@@ -1524,7 +1493,6 @@ RouteUI::solo_isolate_button_release (GdkEventButton* ev)
 
                                boost::shared_ptr<RouteList> rl (new RouteList);
                                rl->push_back (_route);
-                               DisplaySuspender ds;
                                _session->set_controls (route_list_to_control_list (rl, &Stripable::solo_isolate_control), view ? 0.0 : 1.0, Controllable::NoGroup);
                        }
                }
@@ -1596,10 +1564,11 @@ void
 RouteUI::choose_color ()
 {
        bool picked;
-       Gdk::Color const color = Gtkmm2ext::UI::instance()->get_color (_("Color Selection"), picked, &_color);
+       Gdk::Color c (gdk_color_from_rgba (_route->presentation_info().color()));
+       Gdk::Color const color = Gtkmm2ext::UI::instance()->get_color (_("Color Selection"), picked, &c);
 
        if (picked) {
-               set_color(color);
+               set_color (gdk_color_to_rgba (color));
        }
 }
 
@@ -1607,22 +1576,9 @@ RouteUI::choose_color ()
  *  the route is in a group which shares its color with its routes.
  */
 void
-RouteUI::set_color (const Gdk::Color & c)
+RouteUI::set_color (uint32_t c)
 {
-       /* leave _color alone in the group case so that tracks can retain their
-        * own pre-group colors.
-        */
-
-       char buf[64];
-       _color = c;
-       snprintf (buf, sizeof (buf), "%d:%d:%d", c.get_red(), c.get_green(), c.get_blue());
-
-       /* note: we use the route state ID here so that color is the same for both
-          the time axis view and the mixer strip
-       */
-
-       gui_object_state().set_property<string> (route_state_id(), X_("color"), buf);
-       _route->gui_changed ("color", (void *) 0); /* EMIT_SIGNAL */
+       _route->presentation_info().set_color (c);
 }
 
 /** @return GUI state ID for things that are common to the route in all its representations */
@@ -1635,21 +1591,11 @@ RouteUI::route_state_id () const
 int
 RouteUI::set_color_from_route ()
 {
-       const string str = gui_object_state().get_string (route_state_id(), X_("color"));
-
-       if (str.empty()) {
-               return 1;
+       if (_route->presentation_info().color_set()) {
+               return 0; /* nothing to do */
        }
 
-       int r, g, b;
-
-       sscanf (str.c_str(), "%d:%d:%d", &r, &g, &b);
-
-       _color.set_red (r);
-       _color.set_green (g);
-       _color.set_blue (b);
-
-       return 0;
+       return 1; /* pick a color */
 }
 
 /** @return true if this name should be used for the route, otherwise false */
@@ -1717,14 +1663,6 @@ RouteUI::route_rename ()
 
 }
 
-void
-RouteUI::property_changed (const PropertyChange& what_changed)
-{
-       if (what_changed.contains (ARDOUR::Properties::name)) {
-               name_label.set_text (_route->name());
-       }
-}
-
 void
 RouteUI::toggle_comment_editor ()
 {
@@ -1889,12 +1827,6 @@ RouteUI::has_audio_outputs () const
        return (_route->n_outputs().n_audio() > 0);
 }
 
-string
-RouteUI::name() const
-{
-       return _route->name();
-}
-
 void
 RouteUI::map_frozen ()
 {
@@ -2009,6 +1941,8 @@ RouteUI::parameter_changed (string const & p)
                check_rec_enable_sensitivity ();
        } else if (p == "use-monitor-bus" || p == "solo-control-is-listen-control" || p == "listen-position") {
                set_button_names ();
+       } else if (p == "session-monitoring") {
+               update_monitoring_display ();
        } else if (p == "auto-input") {
                update_monitoring_display ();
        } else if (p == "blink-rec-arm") {
@@ -2081,9 +2015,9 @@ RouteUI::setup_invert_buttons ()
                }
 
                if (N <= _max_invert_buttons) {
-                       UI::instance()->set_tip (*b, string_compose (_("Left-click to invert (phase reverse) channel %1 of this track.  Right-click to show menu."), i + 1));
+                       UI::instance()->set_tip (*b, string_compose (_("Left-click to invert polarity of channel %1 of this track. Right-click to show menu."), i + 1));
                } else {
-                       UI::instance()->set_tip (*b, _("Click to show a menu of channels for inversion (phase reverse)"));
+                       UI::instance()->set_tip (*b, _("Click to show a menu of channels to invert polarity"));
                }
 
                _invert_buttons.push_back (b);
@@ -2202,9 +2136,9 @@ RouteUI::request_redraw ()
 
 /** The Route's gui_changed signal has been emitted */
 void
-RouteUI::route_gui_changed (string what_changed)
+RouteUI::route_gui_changed (PropertyChange const& what_changed)
 {
-       if (what_changed == "color") {
+       if (what_changed.contains (Properties::color)) {
                if (set_color_from_route () == 0) {
                        route_color_changed ();
                }
@@ -2230,18 +2164,55 @@ RouteUI::track_mode_changed (void)
 /** @return the color that this route should use; it maybe its own,
     or it maybe that of its route group.
 */
+
 Gdk::Color
-RouteUI::color () const
+RouteUI::route_color () const
 {
+       Gdk::Color c;
        RouteGroup* g = _route->route_group ();
+       string p;
 
        if (g && g->is_color()) {
-               Gdk::Color c;
                set_color_from_rgba (c, GroupTabs::group_color (g));
-               return c;
+       } else {
+
+               /* deal with older 4.x color, which was stored in the GUI object state */
+
+               string p = ARDOUR_UI::instance()->gui_object_state->get_string (route_state_id(), X_("color"));
+
+               if (!p.empty()) {
+
+                       /* old v4.x or earlier session. Use this information */
+
+                       int red, green, blue;
+                       char colon;
+
+                       stringstream ss (p);
+
+                       /* old color format version was:
+
+                          16bit value for red:16 bit value for green:16 bit value for blue
+
+                          decode to rgb ..
+                       */
+
+                       ss >> red;
+                       ss >> colon;
+                       ss >> green;
+                       ss >> colon;
+                       ss >> blue;
+
+                       red >>= 2;
+                       green >>= 2;
+                       blue >>= 2;
+
+                       _route->presentation_info().set_color (RGBA_TO_UINT (red, green, blue, 255));
+               }
+
+               set_color_from_rgba (c, _route->presentation_info().color());
        }
 
-       return _color;
+       return c;
 }
 
 void
@@ -2319,6 +2290,7 @@ RoutePinWindowProxy::route_going_away ()
        _window = 0;
        WM::Manager::instance().remove (this);
        going_away_connection.disconnect();
+       delete this;
 }
 
 void
@@ -2356,3 +2328,111 @@ RouteUI::manage_pins ()
                proxy->present();
        }
 }
+
+void
+RouteUI::fan_out (bool to_busses, bool group)
+{
+       DisplaySuspender ds;
+       boost::shared_ptr<ARDOUR::Route> route = _route;
+       boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (route->the_instrument ());
+       assert (pi);
+
+       const uint32_t n_outputs = pi->output_streams ().n_audio ();
+       if (route->n_outputs ().n_audio () != n_outputs) {
+               MessageDialog msg (string_compose (
+                                       _("The Plugin's number of audio outputs ports (%1) does not match the Tracks's number of audio outputs (%2). Cannot fan out."),
+                                       n_outputs, route->n_outputs ().n_audio ()));
+               msg.run ();
+               return;
+       }
+
+#define BUSNAME  pd.group_name + "(" + route->name () + ")"
+
+       /* count busses and channels/bus */
+       boost::shared_ptr<Plugin> plugin = pi->plugin ();
+       std::map<std::string, uint32_t> busnames;
+       for (uint32_t p = 0; p < n_outputs; ++p) {
+               const Plugin::IOPortDescription& pd (plugin->describe_io_port (DataType::AUDIO, false, p));
+               std::string bn = BUSNAME;
+               busnames[bn]++;
+       }
+
+       if (busnames.size () < 2) {
+               MessageDialog msg (_("Instrument has only 1 output bus. Nothing to fan out."));
+               msg.run ();
+               return;
+       }
+
+       uint32_t outputs = 2;
+       if (_session->master_out ()) {
+               outputs = std::max (outputs, _session->master_out ()->n_inputs ().n_audio ());
+       }
+
+       route->output ()->disconnect (this);
+       route->panner_shell ()->set_bypassed (true);
+
+       RouteList to_group;
+       for (uint32_t p = 0; p < n_outputs; ++p) {
+               const Plugin::IOPortDescription& pd (plugin->describe_io_port (DataType::AUDIO, false, p));
+               std::string bn = BUSNAME;
+               boost::shared_ptr<Route> r = _session->route_by_name (bn);
+               if (!r) {
+                       if (to_busses) {
+                               RouteList rl = _session->new_audio_route (busnames[bn], outputs, NULL, 1, bn, PresentationInfo::AudioBus, PresentationInfo::max_order);
+                               r = rl.front ();
+                               assert (r);
+                       } else {
+                               list<boost::shared_ptr<AudioTrack> > tl =
+                                       _session->new_audio_track (busnames[bn], outputs, NULL, 1, bn, PresentationInfo::max_order, Normal);
+                               r = tl.front ();
+                               assert (r);
+
+                               boost::shared_ptr<ControlList> cl (new ControlList);
+                               cl->push_back (r->monitoring_control ());
+                               _session->set_controls (cl, (double) MonitorInput, Controllable::NoGroup);
+                       }
+                       r->input ()->disconnect (this);
+               }
+               to_group.push_back (r);
+               route->output ()->audio (p)->connect (r->input ()->audio (pd.group_channel).get());
+       }
+#undef BUSNAME
+
+       if (group) {
+               RouteGroup* rg = NULL;
+               const std::list<RouteGroup*>& rgs (_session->route_groups ());
+               for (std::list<RouteGroup*>::const_iterator i = rgs.begin (); i != rgs.end (); ++i) {
+                       if ((*i)->name () == pi->name ()) {
+                               rg = *i;
+                               break;
+                       }
+               }
+               if (!rg) {
+                       rg = new RouteGroup (*_session, pi->name ());
+                       _session->add_route_group (rg);
+                       rg->set_gain (false);
+               }
+
+               GroupTabs::set_group_color (rg, route->presentation_info().color());
+               for (RouteList::const_iterator i = to_group.begin(); i != to_group.end(); ++i) {
+                       rg->add (*i);
+               }
+       }
+}
+
+bool
+RouteUI::mark_hidden (bool yn)
+{
+       if (yn != _route->presentation_info().hidden()) {
+               _route->presentation_info().set_hidden (yn);
+               return true; // things changed
+       }
+       return false;
+}
+
+boost::shared_ptr<Stripable>
+RouteUI::stripable () const
+{
+       return _route;
+}
+