cleanup up cleanup at session destruction; clarify the meaning of 3 signals (DropRefe...
[ardour.git] / gtk2_ardour / route_time_axis.cc
index fd1246bdf5579e3d247af22d94f37d0bd8c04dfd..3e6edd65e1b631335322bccd021804ae4240d641 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2006 Paul Davis 
+    Copyright (C) 2006 Paul Davis
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -31,6 +31,7 @@
 #include "pbd/stl_delete.h"
 #include "pbd/whitespace.h"
 #include "pbd/memento_command.h"
+#include "pbd/enumwriter.h"
 
 #include <gtkmm/menu.h>
 #include <gtkmm/menuitem.h>
@@ -54,6 +55,7 @@
 #include "ardour/route_group.h"
 #include "ardour/session.h"
 #include "ardour/session_playlist.h"
+#include "ardour/debug.h"
 #include "ardour/utils.h"
 #include "evoral/Parameter.hpp"
 
@@ -75,7 +77,7 @@
 #include "simplerect.h"
 #include "streamview.h"
 #include "utils.h"
-#include "route_group_dialog.h"
+#include "route_group_menu.h"
 
 #include "ardour/track.h"
 
@@ -86,7 +88,6 @@ using namespace PBD;
 using namespace Gtkmm2ext;
 using namespace Gtk;
 using namespace Editing;
-using namespace sigc;
 using namespace std;
 
 Glib::RefPtr<Gdk::Pixbuf> RouteTimeAxisView::slider;
@@ -99,7 +100,7 @@ RouteTimeAxisView::setup_slider_pix ()
        }
 }
 
-RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session& sess, boost::shared_ptr<Route> rt, Canvas& canvas)
+RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session* sess, boost::shared_ptr<Route> rt, Canvas& canvas)
        : AxisView(sess)
        , RouteUI(rt, sess)
        , TimeAxisView(sess,ed,(TimeAxisView*) 0, canvas)
@@ -110,11 +111,11 @@ RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session& sess, boost::sh
        , size_button (_("h"))
        , automation_button (_("a"))
        , visual_button (_("v"))
-       , gm (sess, slider, true)
+       , gm (sess, slider, true, 115)
 {
        set_button_names ();
 
-       gm.set_controls (_route, _route->shared_peak_meter(), _route->gain_control(), _route->amp());
+       gm.set_controls (_route, _route->shared_peak_meter(), _route->amp());
        gm.get_level_meter().set_no_show_all();
        gm.get_level_meter().setup_meters(50);
 
@@ -122,6 +123,7 @@ RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session& sess, boost::sh
        playlist_menu = 0;
        playlist_action_menu = 0;
        automation_action_menu = 0;
+       mode_menu = 0;
        _view = 0;
 
        if (!_route->is_hidden()) {
@@ -153,17 +155,17 @@ RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session& sess, boost::sh
        hide_button.add (*(manage (new Image (::get_icon("hide")))));
        hide_button.show_all ();
 
-       route_group_button.signal_button_release_event().connect (mem_fun(*this, &RouteTimeAxisView::edit_click), false);
-       playlist_button.signal_clicked().connect (mem_fun(*this, &RouteTimeAxisView::playlist_click));
-       automation_button.signal_clicked().connect (mem_fun(*this, &RouteTimeAxisView::automation_click));
-       size_button.signal_button_release_event().connect (mem_fun(*this, &RouteTimeAxisView::size_click), false);
-       visual_button.signal_clicked().connect (mem_fun(*this, &RouteTimeAxisView::visual_click));
-       hide_button.signal_clicked().connect (mem_fun(*this, &RouteTimeAxisView::hide_click));
+       route_group_button.signal_button_release_event().connect (sigc::mem_fun(*this, &RouteTimeAxisView::edit_click), false);
+       playlist_button.signal_clicked().connect (sigc::mem_fun(*this, &RouteTimeAxisView::playlist_click));
+       automation_button.signal_clicked().connect (sigc::mem_fun(*this, &RouteTimeAxisView::automation_click));
+       size_button.signal_button_release_event().connect (sigc::mem_fun(*this, &RouteTimeAxisView::size_click), false);
+       visual_button.signal_clicked().connect (sigc::mem_fun(*this, &RouteTimeAxisView::visual_click));
+       hide_button.signal_clicked().connect (sigc::mem_fun(*this, &RouteTimeAxisView::hide_click));
 
-       solo_button->signal_button_press_event().connect (mem_fun(*this, &RouteUI::solo_press), false);
-       solo_button->signal_button_release_event().connect (mem_fun(*this, &RouteUI::solo_release), false);
-       mute_button->signal_button_press_event().connect (mem_fun(*this, &RouteUI::mute_press), false);
-       mute_button->signal_button_release_event().connect (mem_fun(*this, &RouteUI::mute_release), false);
+       solo_button->signal_button_press_event().connect (sigc::mem_fun(*this, &RouteUI::solo_press), false);
+       solo_button->signal_button_release_event().connect (sigc::mem_fun(*this, &RouteUI::solo_release), false);
+       mute_button->signal_button_press_event().connect (sigc::mem_fun(*this, &RouteUI::mute_press), false);
+       mute_button->signal_button_release_event().connect (sigc::mem_fun(*this, &RouteUI::mute_release), false);
 
        if (is_track()) {
 
@@ -182,17 +184,18 @@ RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session& sess, boost::sh
                }
                rec_enable_button->show_all ();
 
-               rec_enable_button->signal_button_press_event().connect (mem_fun(*this, &RouteUI::rec_enable_press), false);
-               rec_enable_button->signal_button_release_event().connect (mem_fun(*this, &RouteUI::rec_enable_release));
+               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);
                controls_table.attach (*rec_enable_button, 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
                ARDOUR_UI::instance()->tooltips().set_tip(*rec_enable_button, _("Record"));
 
+               rec_enable_button->set_sensitive (_session->writable());
        }
 
        controls_hbox.pack_start(gm.get_level_meter(), false, false);
-       _route->meter_change.connect (mem_fun(*this, &RouteTimeAxisView::meter_changed));
-       _route->input()->changed.connect (mem_fun(*this, &RouteTimeAxisView::io_changed));
-       _route->output()->changed.connect (mem_fun(*this, &RouteTimeAxisView::io_changed));
+       _route->meter_change.connect (*this, ui_bind (&RouteTimeAxisView::meter_changed, this, _1), gui_context());
+       _route->input()->changed.connect (*this, ui_bind (&RouteTimeAxisView::io_changed, this, _1, _2), gui_context());
+       _route->output()->changed.connect (*this, ui_bind (&RouteTimeAxisView::io_changed, this, _1, _2), gui_context());
 
        controls_table.attach (*mute_button, 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
        controls_table.attach (*solo_button, 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
@@ -208,7 +211,7 @@ RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session& sess, boost::sh
        ARDOUR_UI::instance()->tooltips().set_tip(automation_button, _("Automation"));
        ARDOUR_UI::instance()->tooltips().set_tip(visual_button, _("Visual options"));
        ARDOUR_UI::instance()->tooltips().set_tip(hide_button, _("Hide this track"));
-       
+
        label_view ();
 
        if (0) {
@@ -231,35 +234,42 @@ RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session& sess, boost::sh
 
        _y_position = -1;
 
-       _route->mute_changed.connect (mem_fun(*this, &RouteUI::mute_changed));
-       _route->solo_changed.connect (mem_fun(*this, &RouteUI::solo_changed));
-       _route->processors_changed.connect (mem_fun(*this, &RouteTimeAxisView::processors_changed));
-       _route->NameChanged.connect (mem_fun(*this, &RouteTimeAxisView::route_name_changed));
-       _route->solo_isolated_changed.connect (mem_fun(*this, &RouteUI::solo_changed));
+       _route->mute_changed.connect (*this, ui_bind (&RouteUI::mute_changed, this, _1), gui_context());
+       _route->solo_changed.connect (*this, ui_bind (&RouteUI::solo_changed, this, _1), gui_context());
+       _route->processors_changed.connect (*this, ui_bind (&RouteTimeAxisView::processors_changed, this, _1), gui_context());
+       _route->NameChanged.connect (*this, boost::bind (&RouteTimeAxisView::route_name_changed, this), gui_context());
+       _route->solo_isolated_changed.connect (*this, ui_bind (&RouteUI::solo_changed, this, _1), gui_context());
 
 
        if (is_track()) {
 
-               track()->TrackModeChanged.connect (mem_fun(*this, &RouteTimeAxisView::track_mode_changed));
-               track()->FreezeChange.connect (mem_fun(*this, &RouteTimeAxisView::map_frozen));
-               track()->DiskstreamChanged.connect (mem_fun(*this, &RouteTimeAxisView::diskstream_changed));
-               get_diskstream()->SpeedChanged.connect (mem_fun(*this, &RouteTimeAxisView::speed_changed));
+               track()->TrackModeChanged.connect (*this, boost::bind (&RouteTimeAxisView::track_mode_changed, this), gui_context());
+               track()->FreezeChange.connect (*this, boost::bind (&RouteTimeAxisView::map_frozen, this), gui_context());
+               track()->DiskstreamChanged.connect (*this, boost::bind (&RouteTimeAxisView::diskstream_changed, this), gui_context());
+               get_diskstream()->SpeedChanged.connect (*this, boost::bind (&RouteTimeAxisView::speed_changed, this), gui_context());
 
                /* pick up the correct freeze state */
                map_frozen ();
 
        }
 
-       _editor.ZoomChanged.connect (mem_fun(*this, &RouteTimeAxisView::reset_samples_per_unit));
-       ColorsChanged.connect (mem_fun (*this, &RouteTimeAxisView::color_handler));
+       _editor.ZoomChanged.connect (sigc::mem_fun(*this, &RouteTimeAxisView::reset_samples_per_unit));
+       ColorsChanged.connect (sigc::mem_fun (*this, &RouteTimeAxisView::color_handler));
+
+       route_group_menu = new RouteGroupMenu (
+               _session,
+               (RouteGroup::Property) (RouteGroup::Mute | RouteGroup::Solo | RouteGroup::Edit)
+               );
+
+       route_group_menu->GroupSelected.connect (sigc::mem_fun (*this, &RouteTimeAxisView::set_route_group_from_menu));
 
-       gm.get_gain_slider().signal_scroll_event().connect(mem_fun(*this, &RouteTimeAxisView::controls_ebox_scroll), false);
+       gm.get_gain_slider().signal_scroll_event().connect(sigc::mem_fun(*this, &RouteTimeAxisView::controls_ebox_scroll), false);
        gm.get_gain_slider().set_name ("TrackGainFader");
 }
 
 RouteTimeAxisView::~RouteTimeAxisView ()
 {
-       GoingAway (); /* EMIT_SIGNAL */
+       CatchDeletion (this);
 
        for (list<ProcessorAutomationInfo*>::iterator i = processor_automation.begin(); i != processor_automation.end(); ++i) {
                delete *i;
@@ -267,7 +277,7 @@ RouteTimeAxisView::~RouteTimeAxisView ()
 
        delete playlist_menu;
        playlist_menu = 0;
-  
+
        delete playlist_action_menu;
        playlist_action_menu = 0;
 
@@ -277,8 +287,10 @@ RouteTimeAxisView::~RouteTimeAxisView ()
        for (AutomationTracks::iterator i = _automation_tracks.begin(); i != _automation_tracks.end(); ++i) {
                delete i->second;
        }
-       
+
        _automation_tracks.clear ();
+
+       delete route_group_menu;
 }
 
 void
@@ -289,85 +301,43 @@ RouteTimeAxisView::post_construct ()
        update_diskstream_display ();
 
        subplugin_menu.items().clear ();
-       _route->foreach_processor (mem_fun (*this, &RouteTimeAxisView::add_processor_to_subplugin_menu));
-       _route->foreach_processor (mem_fun (*this, &RouteTimeAxisView::add_existing_processor_automation_curves));
+       _route->foreach_processor (sigc::mem_fun (*this, &RouteTimeAxisView::add_processor_to_subplugin_menu));
+       _route->foreach_processor (sigc::mem_fun (*this, &RouteTimeAxisView::add_existing_processor_automation_curves));
        reset_processor_automation_curves ();
 }
 
-void
-RouteTimeAxisView::set_playlist (boost::shared_ptr<Playlist> newplaylist)
-{
-       boost::shared_ptr<Playlist> pl = playlist();
-       assert(pl);
-
-       modified_connection.disconnect ();
-       modified_connection = pl->Modified.connect (mem_fun(*this, &RouteTimeAxisView::playlist_modified));
-}
-
-void
-RouteTimeAxisView::playlist_modified ()
-{
-}
-
 gint
 RouteTimeAxisView::edit_click (GdkEventButton *ev)
 {
        if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
-               _route->set_route_group (0, this);
-               return FALSE;
-       } 
-
-       using namespace Menu_Helpers;
-
-       MenuList& items = route_group_menu.items ();
-       RadioMenuItem::Group group;
-
-       items.clear ();
-
-       items.push_back (MenuElem (_("New group..."), mem_fun (*this, &RouteTimeAxisView::set_route_group_to_new)));
-
-       items.push_back (SeparatorElem ());
-       
-       items.push_back (RadioMenuElem (group, _("No group"), 
-                                       bind (mem_fun(*this, &RouteTimeAxisView::set_route_group_from_menu), (RouteGroup *) 0)));
-       
-       if (_route->route_group() == 0) {
-               static_cast<RadioMenuItem*>(&items.back())->set_active ();
+               if (_route->route_group()) {
+                       _route->route_group()->remove (_route);
+               }
+               return false;
        }
 
-       _session.foreach_route_group (bind (mem_fun (*this, &RouteTimeAxisView::add_route_group_menu_item), &group));
-       route_group_menu.popup (ev->button, ev->time);
+       route_group_menu->rebuild (_route->route_group ());
+       route_group_menu->popup (ev->button, ev->time);
 
-       return FALSE;
-}
-
-void
-RouteTimeAxisView::add_route_group_menu_item (RouteGroup *eg, RadioMenuItem::Group* group)
-{
-       using namespace Menu_Helpers;
-
-       MenuList &items = route_group_menu.items();
-
-       items.push_back (RadioMenuElem (*group, eg->name(), bind (mem_fun(*this, &RouteTimeAxisView::set_route_group_from_menu), eg)));
-       if (_route->route_group() == eg) {
-               static_cast<RadioMenuItem*>(&items.back())->set_active ();
-       }
+       return false;
 }
 
 void
 RouteTimeAxisView::set_route_group_from_menu (RouteGroup *eg)
 {
-       _route->set_route_group (eg, this);
+       if (eg) {
+               eg->add (_route);
+       } else {
+               if (_route->route_group()) {
+                       _route->route_group()->remove (_route);
+               }
+       }
 }
 
 void
 RouteTimeAxisView::playlist_changed ()
 {
        label_view ();
-
-       if (is_track()) {
-               set_playlist (get_diskstream()->playlist());
-       }
 }
 
 void
@@ -385,7 +355,6 @@ RouteTimeAxisView::label_view ()
 void
 RouteTimeAxisView::route_name_changed ()
 {
-       _editor.route_name_changed (this);
        label_view ();
 }
 
@@ -402,12 +371,12 @@ void
 RouteTimeAxisView::playlist_click ()
 {
        // always build a new action menu
-  
+
        delete playlist_action_menu;
 
        playlist_action_menu = new Menu;
        playlist_action_menu->set_name ("ArdourContextMenu");
-       
+
        build_playlist_menu (playlist_action_menu);
 
        conditionally_add_to_selection ();
@@ -423,20 +392,24 @@ RouteTimeAxisView::automation_click ()
 }
 
 int
-RouteTimeAxisView::set_state (const XMLNode& node)
+RouteTimeAxisView::set_state (const XMLNode& node, int version)
 {
-       TimeAxisView::set_state (node);
+       TimeAxisView::set_state (node, version);
 
        XMLNodeList kids = node.children();
        XMLNodeConstIterator iter;
        const XMLProperty* prop;
-       
+
+       if (_view && (prop = node.property ("layer-display"))) {
+               set_layer_display (LayerDisplay (string_2_enum (prop->value(), _view->layer_display ())));
+       }
+
        for (iter = kids.begin(); iter != kids.end(); ++iter) {
                if ((*iter)->name() == AutomationTimeAxisView::state_node_name) {
                        if ((prop = (*iter)->property ("automation-id")) != 0) {
 
                                Evoral::Parameter param = ARDOUR::EventTypeMap::instance().new_parameter(prop->value());
-                               bool show = ((prop = (*iter)->property ("shown")) != 0) && prop->value() == "yes";
+                               bool show = ((prop = (*iter)->property ("shown")) != 0) && string_is_affirmative (prop->value());
                                create_automation_child(param, show);
                        } else {
                                warning << "Automation child has no ID" << endmsg;
@@ -455,21 +428,22 @@ RouteTimeAxisView::build_automation_action_menu ()
        automation_action_menu = manage (new Menu);
        MenuList& automation_items = automation_action_menu->items();
        automation_action_menu->set_name ("ArdourContextMenu");
-       
+
        automation_items.push_back (MenuElem (_("Show all automation"),
-                                             mem_fun(*this, &RouteTimeAxisView::show_all_automation)));
+                                             sigc::mem_fun(*this, &RouteTimeAxisView::show_all_automation)));
 
        automation_items.push_back (MenuElem (_("Show existing automation"),
-                                             mem_fun(*this, &RouteTimeAxisView::show_existing_automation)));
+                                             sigc::mem_fun(*this, &RouteTimeAxisView::show_existing_automation)));
 
        automation_items.push_back (MenuElem (_("Hide all automation"),
-                                             mem_fun(*this, &RouteTimeAxisView::hide_all_automation)));
+                                             sigc::mem_fun(*this, &RouteTimeAxisView::hide_all_automation)));
 
        if (subplugin_menu.get_attach_widget())
                subplugin_menu.detach();
 
        automation_items.push_back (MenuElem (_("Plugins"), subplugin_menu));
-       
+       automation_items.back().set_sensitive (!subplugin_menu.items().empty());
+
        map<Evoral::Parameter, RouteAutomationNode*>::iterator i;
        for (i = _automation_tracks.begin(); i != _automation_tracks.end(); ++i) {
 
@@ -477,8 +451,8 @@ RouteTimeAxisView::build_automation_action_menu ()
 
                delete i->second->menu_item;
 
-               automation_items.push_back(CheckMenuElem (_route->describe_parameter(i->second->param), 
-                               bind (mem_fun(*this, &RouteTimeAxisView::toggle_automation_track), i->second->param)));
+               automation_items.push_back(CheckMenuElem (_route->describe_parameter(i->second->param),
+                               sigc::bind (sigc::mem_fun(*this, &RouteTimeAxisView::toggle_automation_track), i->second->param)));
 
                i->second->menu_item = static_cast<Gtk::CheckMenuItem*>(&automation_items.back());
 
@@ -504,15 +478,14 @@ RouteTimeAxisView::build_display_menu ()
 
        MenuList& items = display_menu->items();
        display_menu->set_name ("ArdourContextMenu");
-       
+
        items.push_back (MenuElem (_("Height"), *size_menu));
-       items.push_back (MenuElem (_("Color"), mem_fun(*this, &RouteTimeAxisView::select_track_color)));
+       items.push_back (MenuElem (_("Color"), sigc::mem_fun(*this, &RouteTimeAxisView::select_track_color)));
 
        items.push_back (SeparatorElem());
 
        if (!Profile->get_sae()) {
-               build_remote_control_menu ();
-               items.push_back (MenuElem (_("Remote Control ID"), *remote_control_menu));
+               items.push_back (MenuElem (_("Remote Control ID..."), sigc::mem_fun (*this, &RouteUI::open_remote_control_id_dialog)));
                /* rebuild this every time */
                build_automation_action_menu ();
                items.push_back (MenuElem (_("Automation"), *automation_action_menu));
@@ -522,7 +495,7 @@ RouteTimeAxisView::build_display_menu ()
        // Hook for derived classes to add type specific stuff
        append_extra_display_menu_items ();
        items.push_back (SeparatorElem());
-       
+
        if (is_track()) {
 
                Menu *layers_menu = manage(new Menu);
@@ -532,9 +505,9 @@ RouteTimeAxisView::build_display_menu ()
                RadioMenuItem::Group layers_group;
 
                layers_items.push_back(RadioMenuElem (layers_group, _("Overlaid"),
-                               bind (mem_fun (*this, &RouteTimeAxisView::set_layer_display), Overlaid)));
+                               sigc::bind (sigc::mem_fun (*this, &RouteTimeAxisView::set_layer_display), Overlaid)));
                layers_items.push_back(RadioMenuElem (layers_group, _("Stacked"),
-                               bind (mem_fun (*this, &RouteTimeAxisView::set_layer_display), Stacked)));
+                               sigc::bind (sigc::mem_fun (*this, &RouteTimeAxisView::set_layer_display), Stacked)));
 
                items.push_back (MenuElem (_("Layers"), *layers_menu));
 
@@ -545,39 +518,38 @@ RouteTimeAxisView::build_display_menu ()
                RadioMenuItem::Group align_group;
 
                alignment_items.push_back (RadioMenuElem (align_group, _("Align with existing material"),
-                                       bind (mem_fun(*this, &RouteTimeAxisView::set_align_style), ExistingMaterial)));
+                                       sigc::bind (sigc::mem_fun(*this, &RouteTimeAxisView::set_align_style), ExistingMaterial)));
                align_existing_item = dynamic_cast<RadioMenuItem*>(&alignment_items.back());
                if (get_diskstream()->alignment_style() == ExistingMaterial)
                        align_existing_item->set_active();
 
                alignment_items.push_back (RadioMenuElem (align_group, _("Align with capture time"),
-                                       bind (mem_fun(*this, &RouteTimeAxisView::set_align_style), CaptureTime)));
+                                       sigc::bind (sigc::mem_fun(*this, &RouteTimeAxisView::set_align_style), CaptureTime)));
                align_capture_item = dynamic_cast<RadioMenuItem*>(&alignment_items.back());
                if (get_diskstream()->alignment_style() == CaptureTime)
                        align_capture_item->set_active();
 
                if (!Profile->get_sae()) {
                        items.push_back (MenuElem (_("Alignment"), *alignment_menu));
-                       get_diskstream()->AlignmentStyleChanged.connect (
-                                       mem_fun(*this, &RouteTimeAxisView::align_style_changed));
-                       
+                       get_diskstream()->AlignmentStyleChanged.connect (route_connections, boost::bind (&RouteTimeAxisView::align_style_changed, this), gui_context());
+
                        RadioMenuItem::Group mode_group;
-                       items.push_back (RadioMenuElem (mode_group, _("Normal mode"), bind (
-                                       mem_fun (*this, &RouteTimeAxisView::set_track_mode),
+                       items.push_back (RadioMenuElem (mode_group, _("Normal mode"), sigc::bind (
+                                       sigc::mem_fun (*this, &RouteTimeAxisView::set_track_mode),
                                        ARDOUR::Normal)));
                        normal_track_mode_item = dynamic_cast<RadioMenuItem*>(&items.back());
 
-                       items.push_back (RadioMenuElem (mode_group, _("Tape mode"), bind (
-                                       mem_fun (*this, &RouteTimeAxisView::set_track_mode),
+                       items.push_back (RadioMenuElem (mode_group, _("Tape mode"), sigc::bind (
+                                       sigc::mem_fun (*this, &RouteTimeAxisView::set_track_mode),
                                        ARDOUR::Destructive)));
                        destructive_track_mode_item = dynamic_cast<RadioMenuItem*>(&items.back());
 
                        items.push_back (RadioMenuElem (mode_group, _("No layering mode"),
-                                                       bind (mem_fun (*this, &RouteTimeAxisView::set_track_mode), ARDOUR::NonLayered)));
+                                                       sigc::bind (sigc::mem_fun (*this, &RouteTimeAxisView::set_track_mode), ARDOUR::NonLayered)));
                        non_layered_track_mode_item = dynamic_cast<RadioMenuItem*>(&items.back());
 
-                       
+
+
                        switch (track()->mode()) {
                        case ARDOUR::Destructive:
                                destructive_track_mode_item->set_active ();
@@ -591,31 +563,30 @@ RouteTimeAxisView::build_display_menu ()
                        }
                }
 
-               get_diskstream()->AlignmentStyleChanged.connect (
-                               mem_fun(*this, &RouteTimeAxisView::align_style_changed));
+               get_diskstream()->AlignmentStyleChanged.connect (route_connections, boost::bind (&RouteTimeAxisView::align_style_changed, this), gui_context());
 
                mode_menu = build_mode_menu();
                if (mode_menu)
                        items.push_back (MenuElem (_("Mode"), *mode_menu));
-                       
+
                color_mode_menu = build_color_mode_menu();
                if (color_mode_menu)
                        items.push_back (MenuElem (_("Color Mode"), *color_mode_menu));
-                       
+
                items.push_back (SeparatorElem());
        }
 
-       items.push_back (CheckMenuElem (_("Active"), mem_fun(*this, &RouteUI::toggle_route_active)));
+       items.push_back (CheckMenuElem (_("Active"), sigc::mem_fun(*this, &RouteUI::toggle_route_active)));
        route_active_menu_item = dynamic_cast<CheckMenuItem *> (&items.back());
        route_active_menu_item->set_active (_route->active());
 
        items.push_back (SeparatorElem());
-       items.push_back (MenuElem (_("Hide"), mem_fun(*this, &RouteTimeAxisView::hide_click)));
+       items.push_back (MenuElem (_("Hide"), sigc::mem_fun(*this, &RouteTimeAxisView::hide_click)));
        if (!Profile->get_sae()) {
-               items.push_back (MenuElem (_("Remove"), mem_fun(*this, &RouteUI::remove_this_route)));
+               items.push_back (MenuElem (_("Remove"), sigc::mem_fun(*this, &RouteUI::remove_this_route)));
        } else {
                items.push_front (SeparatorElem());
-               items.push_front (MenuElem (_("Delete"), mem_fun(*this, &RouteUI::remove_this_route)));
+               items.push_front (MenuElem (_("Delete"), sigc::mem_fun(*this, &RouteUI::remove_this_route)));
        }
 }
 
@@ -654,7 +625,7 @@ RouteTimeAxisView::set_track_mode (TrackMode mode)
                /*NOTREACHED*/
                return;
        }
-       
+
        if (item && other_item && other_item_2 && item->get_active() && track()->mode() != mode) {
                _set_track_mode (track().get(), mode, other_item, other_item_2);
        }
@@ -669,7 +640,7 @@ RouteTimeAxisView::_set_track_mode (Track* track, TrackMode mode, RadioMenuItem*
 
                if (!needs_bounce) {
                        /* cannot be done */
-                       Glib::signal_idle().connect (bind (sigc::ptr_fun (__reset_item), reset_item, reset_item_2));
+                       Glib::signal_idle().connect (sigc::bind (sigc::ptr_fun (__reset_item), reset_item, reset_item_2));
                        return;
                } else {
                        cerr << "would bounce this one\n";
@@ -698,7 +669,7 @@ void
 RouteTimeAxisView::track_mode_changed ()
 {
        RadioMenuItem* item;
-       
+
        switch (track()->mode()) {
        case ARDOUR::Normal:
                item = normal_track_mode_item;
@@ -724,12 +695,12 @@ RouteTimeAxisView::show_timestretch (nframes_t start, nframes_t end)
        double x1;
        double x2;
        double y2;
-       
+
        TimeAxisView::show_timestretch (start, end);
 
        hide_timestretch ();
 
-#if 0  
+#if 0
        if (ts.empty()) {
                return;
        }
@@ -745,7 +716,7 @@ RouteTimeAxisView::show_timestretch (nframes_t start, nframes_t end)
        }
 
        /* ignore it if our edit group is not active */
-       
+
        if ((ts.track != this) && _route->route_group() && !_route->route_group()->is_active()) {
                return;
        }
@@ -767,7 +738,7 @@ RouteTimeAxisView::show_timestretch (nframes_t start, nframes_t end)
        x1 = start / _editor.get_current_zoom();
        x2 = (end - 1) / _editor.get_current_zoom();
        y2 = current_height() - 2;
-       
+
        timestretch_rect->property_x1() = x1;
        timestretch_rect->property_y1() = 1.0;
        timestretch_rect->property_x2() = x2;
@@ -830,7 +801,7 @@ RouteTimeAxisView::set_height (uint32_t h)
 
                gm.get_gain_slider().show();
                mute_button->show();
-               if (!_route || _route->is_master()) {
+               if (!_route || _route->is_control()) {
                        solo_button->hide();
                } else {
                        solo_button->show();
@@ -843,7 +814,7 @@ RouteTimeAxisView::set_height (uint32_t h)
                visual_button.show();
                size_button.show();
                automation_button.show();
-               
+
                if (is_track() && track()->mode() == ARDOUR::Normal) {
                        playlist_button.show();
                }
@@ -856,7 +827,7 @@ RouteTimeAxisView::set_height (uint32_t h)
 
                gm.get_gain_slider().hide();
                mute_button->show();
-               if (!_route || _route->is_master()) {
+               if (!_route || _route->is_control()) {
                        solo_button->hide();
                } else {
                        solo_button->show();
@@ -869,7 +840,7 @@ RouteTimeAxisView::set_height (uint32_t h)
                visual_button.hide ();
                size_button.hide ();
                automation_button.hide ();
-               
+
                if (is_track() && track()->mode() == ARDOUR::Normal) {
                        playlist_button.hide ();
                }
@@ -890,7 +861,7 @@ RouteTimeAxisView::set_height (uint32_t h)
 
                hide_name_entry ();
                show_name_label ();
-               
+
                gm.get_gain_slider().hide();
                mute_button->hide();
                solo_button->hide();
@@ -937,7 +908,7 @@ RouteTimeAxisView::set_samples_per_unit (double spu)
        if (get_diskstream() != 0) {
                speed = get_diskstream()->speed();
        }
-       
+
        if (_view) {
                _view->set_samples_per_unit (spu * speed);
        }
@@ -1017,7 +988,7 @@ RouteTimeAxisView::rename_current_playlist ()
        }
 }
 
-std::string 
+std::string
 RouteTimeAxisView::resolve_new_group_playlist_name(std::string &basename, vector<boost::shared_ptr<Playlist> > const & playlists)
 {
        std::string ret (basename);
@@ -1029,7 +1000,7 @@ RouteTimeAxisView::resolve_new_group_playlist_name(std::string &basename, vector
        for (vector<boost::shared_ptr<Playlist> >::const_iterator i = playlists.begin(); i != playlists.end(); ++i) {
                std::string tmp = (*i)->name();
 
-               std::string::size_type idx = tmp.find(group_string);                    
+               std::string::size_type idx = tmp.find(group_string);
                // find those which belong to this group
                if (idx != string::npos) {
                        tmp = tmp.substr(idx + group_string.length());
@@ -1046,7 +1017,7 @@ RouteTimeAxisView::resolve_new_group_playlist_name(std::string &basename, vector
 
        char buf[32];
        snprintf (buf, sizeof(buf), "%d", maxnumber);
-               
+
        ret = this->name() + "." + route_group()->name () + "." + buf;
 
        return ret;
@@ -1056,7 +1027,7 @@ void
 RouteTimeAxisView::use_copy_playlist (bool prompt, vector<boost::shared_ptr<Playlist> > const & playlists_before_op)
 {
        string name;
-       
+
        boost::shared_ptr<Diskstream> ds = get_diskstream();
        if (!ds || ds->destructive())
                return;
@@ -1066,13 +1037,13 @@ RouteTimeAxisView::use_copy_playlist (bool prompt, vector<boost::shared_ptr<Play
                return;
 
        name = pl->name();
-       
+
        if (route_group() && route_group()->is_active()) {
                name = resolve_new_group_playlist_name(name, playlists_before_op);
        }
 
-       while (_session.playlist_by_name(name)) {
-               name = Playlist::bump_name (name, _session);
+       while (_session->playlists->by_name(name)) {
+               name = Playlist::bump_name (name, *_session);
        }
 
        // TODO: The prompter "new" button should be de-activated if the user
@@ -1081,18 +1052,18 @@ RouteTimeAxisView::use_copy_playlist (bool prompt, vector<boost::shared_ptr<Play
        if (prompt) {
 
                ArdourPrompter prompter (true);
-               
+
                prompter.set_prompt (_("Name for Playlist"));
                prompter.set_initial_text (name);
                prompter.add_button (Gtk::Stock::NEW, Gtk::RESPONSE_ACCEPT);
                prompter.set_response_sensitive (Gtk::RESPONSE_ACCEPT, true);
                prompter.show_all ();
-               
+
                switch (prompter.run ()) {
                case Gtk::RESPONSE_ACCEPT:
                        prompter.get_result (name);
                        break;
-                       
+
                default:
                        return;
                }
@@ -1108,7 +1079,7 @@ void
 RouteTimeAxisView::use_new_playlist (bool prompt, vector<boost::shared_ptr<Playlist> > const & playlists_before_op)
 {
        string name;
-       
+
        boost::shared_ptr<Diskstream> ds = get_diskstream();
        if (!ds || ds->destructive())
                return;
@@ -1118,20 +1089,20 @@ RouteTimeAxisView::use_new_playlist (bool prompt, vector<boost::shared_ptr<Playl
                return;
 
        name = pl->name();
-       
+
        if (route_group() && route_group()->is_active()) {
                name = resolve_new_group_playlist_name(name,playlists_before_op);
        }
 
-       while (_session.playlist_by_name(name)) {
-               name = Playlist::bump_name (name, _session);
+       while (_session->playlists->by_name(name)) {
+               name = Playlist::bump_name (name, *_session);
        }
 
 
        if (prompt) {
-               
+
                ArdourPrompter prompter (true);
-               
+
                prompter.set_prompt (_("Name for Playlist"));
                prompter.set_initial_text (name);
                prompter.add_button (Gtk::Stock::NEW, Gtk::RESPONSE_ACCEPT);
@@ -1141,7 +1112,7 @@ RouteTimeAxisView::use_new_playlist (bool prompt, vector<boost::shared_ptr<Playl
                case Gtk::RESPONSE_ACCEPT:
                        prompter.get_result (name);
                        break;
-                       
+
                default:
                        return;
                }
@@ -1170,14 +1141,14 @@ RouteTimeAxisView::clear_playlist ()
 void
 RouteTimeAxisView::speed_changed ()
 {
-       Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &RouteTimeAxisView::reset_samples_per_unit));
+       Gtkmm2ext::UI::instance()->call_slot (boost::bind (&RouteTimeAxisView::reset_samples_per_unit, this));
 }
 
 void
 RouteTimeAxisView::diskstream_changed ()
 {
-       Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &RouteTimeAxisView::update_diskstream_display));
-}      
+       Gtkmm2ext::UI::instance()->call_slot (boost::bind (&RouteTimeAxisView::update_diskstream_display, this));
+}
 
 void
 RouteTimeAxisView::update_diskstream_display ()
@@ -1185,9 +1156,8 @@ RouteTimeAxisView::update_diskstream_display ()
        if (!get_diskstream()) // bus
                return;
 
-       set_playlist (get_diskstream()->playlist());
        map_frozen ();
-}      
+}
 
 void
 RouteTimeAxisView::selection_click (GdkEventButton* ev)
@@ -1202,35 +1172,25 @@ RouteTimeAxisView::selection_click (GdkEventButton* ev)
                }
 
                return;
-       } 
-
-       PublicEditor::TrackViewList* tracks = _editor.get_valid_views (this, _route->route_group());
+       }
 
-       switch (Keyboard::selection_type (ev->state)) {
+       switch (ArdourKeyboard::selection_type (ev->state)) {
        case Selection::Toggle:
-               _editor.get_selection().toggle (*tracks);
+               _editor.get_selection().toggle (this);
                break;
-               
+
        case Selection::Set:
-               _editor.get_selection().set (*tracks);
+               _editor.get_selection().set (this);
                break;
 
        case Selection::Extend:
-               if (tracks->size() > 1) {
-                       /* add each one, do not "extend" */
-                       _editor.get_selection().add (*tracks);
-               } else {
-                       /* extend to the single track */
-                       _editor.extend_selection_to_track (*tracks->front());
-               }
+               _editor.extend_selection_to_track (*this);
                break;
 
        case Selection::Add:
-               _editor.get_selection().add (*tracks);
+               _editor.get_selection().add (this);
                break;
        }
-
-       delete tracks;
 }
 
 void
@@ -1256,20 +1216,20 @@ void
 RouteTimeAxisView::get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& results)
 {
        double speed = 1.0;
-       
+
        if (get_diskstream() != 0) {
                speed = get_diskstream()->speed();
        }
-       
+
        nframes_t start_adjusted = session_frame_to_track_frame(start, speed);
        nframes_t end_adjusted   = session_frame_to_track_frame(end, speed);
 
        if ((_view && ((top < 0.0 && bot < 0.0))) || touched (top, bot)) {
-               _view->get_selectables (start_adjusted, end_adjusted, results);
+               _view->get_selectables (start_adjusted, end_adjusted, top, bot, results);
        }
 
        /* pick up visible automation tracks */
-       
+
        for (Children::iterator i = children.begin(); i != children.end(); ++i) {
                if (!(*i)->hidden()) {
                        (*i)->get_selectables (start_adjusted, end_adjusted, top, bot, results);
@@ -1314,7 +1274,7 @@ RouteTimeAxisView::automation_track (Evoral::Parameter param)
 }
 
 /** Shorthand for GainAutomation, etc.
- */    
+ */
 RouteTimeAxisView::RouteAutomationNode*
 RouteTimeAxisView::automation_track (AutomationType type)
 {
@@ -1334,12 +1294,12 @@ RouteTimeAxisView::name() const
 }
 
 boost::shared_ptr<Playlist>
-RouteTimeAxisView::playlist () const 
+RouteTimeAxisView::playlist () const
 {
        boost::shared_ptr<Diskstream> ds;
 
        if ((ds = get_diskstream()) != 0) {
-               return ds->playlist(); 
+               return ds->playlist();
        } else {
                return boost::shared_ptr<Playlist> ();
        }
@@ -1351,7 +1311,7 @@ RouteTimeAxisView::name_entry_changed ()
        string x;
 
        x = name_entry.get_text ();
-       
+
        if (x == _route->name()) {
                return;
        }
@@ -1363,10 +1323,10 @@ RouteTimeAxisView::name_entry_changed ()
                return;
        }
 
-       if (!_session.route_name_unique (x)) {
+       if (!_session->route_name_unique (x)) {
                ARDOUR_UI::instance()->popup_error (_("A track already exists with that name"));
                name_entry.set_text (_route->name());
-       } else if (_session.route_name_internal (x)) {
+       } else if (_session->route_name_internal (x)) {
                ARDOUR_UI::instance()->popup_error (_("You cannot create a track with that name as it is reserved for Ardour"));
                name_entry.set_text (_route->name());
        } else {
@@ -1385,9 +1345,9 @@ RouteTimeAxisView::hide_click ()
 {
        // LAME fix for hide_button refresh fix
        hide_button.set_sensitive(false);
-       
+
        _editor.hide_track_in_display (*this);
-       
+
        hide_button.set_sensitive(true);
 }
 
@@ -1404,7 +1364,7 @@ RouteTimeAxisView::find_next_region (nframes_t pos, RegionPoint point, int32_t d
        return boost::shared_ptr<Region> ();
 }
 
-nframes64_t 
+nframes64_t
 RouteTimeAxisView::find_next_region_boundary (nframes64_t pos, int32_t dir)
 {
        boost::shared_ptr<Diskstream> stream;
@@ -1440,13 +1400,13 @@ RouteTimeAxisView::cut_copy_clear (Selection& selection, CutCopyOp op)
                        (*i).end   = session_frame_to_track_frame((*i).end,   speed);
                }
        }
-       
+
        XMLNode &before = playlist->get_state();
        switch (op) {
        case Cut:
                if ((what_we_got = playlist->cut (time)) != 0) {
                        _editor.get_cut_buffer().add (what_we_got);
-                       _session.add_command( new MementoCommand<Playlist>(*playlist.get(), &before, &playlist->get_state()));
+                       _session->add_command( new MementoCommand<Playlist>(*playlist.get(), &before, &playlist->get_state()));
                        ret = true;
                }
                break;
@@ -1458,7 +1418,7 @@ RouteTimeAxisView::cut_copy_clear (Selection& selection, CutCopyOp op)
 
        case Clear:
                if ((what_we_got = playlist->cut (time)) != 0) {
-                       _session.add_command( new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
+                       _session->add_command( new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
                        what_we_got->release ();
                        ret = true;
                }
@@ -1477,19 +1437,20 @@ RouteTimeAxisView::paste (nframes_t pos, float times, Selection& selection, size
 
        boost::shared_ptr<Playlist> playlist = get_diskstream()->playlist();
        PlaylistSelection::iterator p;
-       
+
        for (p = selection.playlists.begin(); p != selection.playlists.end() && nth; ++p, --nth) {}
 
        if (p == selection.playlists.end()) {
                return false;
        }
 
-       if (get_diskstream()->speed() != 1.0f)
+       if (get_diskstream()->speed() != 1.0f) {
                pos = session_frame_to_track_frame(pos, get_diskstream()->speed() );
-       
+       }
+
        XMLNode &before = playlist->get_state();
        playlist->paste (*p, pos, times);
-       _session.add_command( new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
+       _session->add_command( new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
 
        return true;
 }
@@ -1499,7 +1460,7 @@ TimeAxisView::Children
 RouteTimeAxisView::get_child_list()
 {
        TimeAxisView::Children redirect_children;
-       
+
        for (Children::iterator i = children.begin(); i != children.end(); ++i) {
                if (!(*i)->hidden()) {
                        redirect_children.push_back(*i);
@@ -1531,45 +1492,45 @@ RouteTimeAxisView::build_playlist_menu (Gtk::Menu * menu)
        boost::shared_ptr<Diskstream> ds = get_diskstream();
        RadioMenuItem::Group playlist_group;
 
-       _session.get_playlists (playlists);
-       
+       _session->playlists->get (playlists);
+
        for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
 
                if ((*i)->get_orig_diskstream_id() == ds->id()) {
-                       playlist_items.push_back (RadioMenuElem (playlist_group, (*i)->name(), bind (mem_fun (*this, &RouteTimeAxisView::use_playlist),
+                       playlist_items.push_back (RadioMenuElem (playlist_group, (*i)->name(), sigc::bind (sigc::mem_fun (*this, &RouteTimeAxisView::use_playlist),
                                                                                                     boost::weak_ptr<Playlist> (*i))));
 
                        if (ds->playlist()->id() == (*i)->id()) {
                                static_cast<RadioMenuItem*>(&playlist_items.back())->set_active();
                        }
                } else if (ds->playlist()->id() == (*i)->id()) {
-                       playlist_items.push_back (RadioMenuElem (playlist_group, (*i)->name(), bind (mem_fun (*this, &RouteTimeAxisView::use_playlist), 
+                       playlist_items.push_back (RadioMenuElem (playlist_group, (*i)->name(), sigc::bind (sigc::mem_fun (*this, &RouteTimeAxisView::use_playlist),
                                                                                                     boost::weak_ptr<Playlist>(*i))));
                        static_cast<RadioMenuItem*>(&playlist_items.back())->set_active();
-                       
+
                }
        }
 
        playlist_items.push_back (SeparatorElem());
-       playlist_items.push_back (MenuElem (_("Rename"), mem_fun(*this, &RouteTimeAxisView::rename_current_playlist)));
+       playlist_items.push_back (MenuElem (_("Rename"), sigc::mem_fun(*this, &RouteTimeAxisView::rename_current_playlist)));
        playlist_items.push_back (SeparatorElem());
 
        if (!route_group() || !route_group()->is_active()) {
-               playlist_items.push_back (MenuElem (_("New"), bind(mem_fun(_editor, &PublicEditor::new_playlists), this)));
-               playlist_items.push_back (MenuElem (_("New Copy"), bind(mem_fun(_editor, &PublicEditor::copy_playlists), this)));
+               playlist_items.push_back (MenuElem (_("New"), sigc::bind(sigc::mem_fun(_editor, &PublicEditor::new_playlists), this)));
+               playlist_items.push_back (MenuElem (_("New Copy"), sigc::bind(sigc::mem_fun(_editor, &PublicEditor::copy_playlists), this)));
 
        } else {
                // Use a label which tells the user what is happening
-               playlist_items.push_back (MenuElem (_("New Take"), bind(mem_fun(_editor, &PublicEditor::new_playlists), this)));
-               playlist_items.push_back (MenuElem (_("Copy Take"), bind(mem_fun(_editor, &PublicEditor::copy_playlists), this)));
-               
+               playlist_items.push_back (MenuElem (_("New Take"), sigc::bind(sigc::mem_fun(_editor, &PublicEditor::new_playlists), this)));
+               playlist_items.push_back (MenuElem (_("Copy Take"), sigc::bind(sigc::mem_fun(_editor, &PublicEditor::copy_playlists), this)));
+
        }
 
        playlist_items.push_back (SeparatorElem());
-       playlist_items.push_back (MenuElem (_("Clear Current"), bind(mem_fun(_editor, &PublicEditor::clear_playlists), this)));
+       playlist_items.push_back (MenuElem (_("Clear Current"), sigc::bind(sigc::mem_fun(_editor, &PublicEditor::clear_playlists), this)));
        playlist_items.push_back (SeparatorElem());
 
-       playlist_items.push_back (MenuElem(_("Select from all ..."), mem_fun(*this, &RouteTimeAxisView::show_playlist_selector)));
+       playlist_items.push_back (MenuElem(_("Select from all ..."), sigc::mem_fun(*this, &RouteTimeAxisView::show_playlist_selector)));
 }
 
 void
@@ -1584,10 +1545,10 @@ RouteTimeAxisView::use_playlist (boost::weak_ptr<Playlist> wpl)
        }
 
        boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl);
-       
+
        if (apl) {
                if (get_diskstream()->playlist() == apl) {
-                       // radio button cotnrols mean this function is called for both the 
+                       // radio button cotnrols mean this function is called for both the
                        // old and new playlist
                        return;
                }
@@ -1605,21 +1566,23 @@ RouteTimeAxisView::use_playlist (boost::weak_ptr<Playlist> wpl)
                                return;
 
                        take_name = take_name.substr(idx + group_string.length()); // find the bit containing the take number / name
-                       
-                       for (list<Route*>::const_iterator i = route_group()->route_list().begin(); i != route_group()->route_list().end(); ++i) {
-                               if ( (*i) == this->route().get()) {
+
+                       boost::shared_ptr<RouteList> rl (route_group()->route_list());
+
+                       for (RouteList::const_iterator i = rl->begin(); i != rl->end(); ++i) {
+                               if ( (*i) == this->route()) {
                                        continue;
                                }
-                               
+
                                std::string playlist_name = (*i)->name()+group_string+take_name;
 
-                               Track *track = dynamic_cast<Track *>(*i);
+                               boost::shared_ptr<Track> track = boost::dynamic_pointer_cast<Track>(*i);
                                if (!track) {
                                        std::cerr << "route " << (*i)->name() << " is not a Track" << std::endl;
                                        continue;
                                }
 
-                               boost::shared_ptr<Playlist> ipl = session().playlist_by_name(playlist_name);
+                               boost::shared_ptr<Playlist> ipl = session()->playlists->by_name(playlist_name);
                                if (!ipl) {
                                        // No playlist for this track for this take yet, make it
                                        track->diskstream()->use_new_playlist();
@@ -1627,8 +1590,6 @@ RouteTimeAxisView::use_playlist (boost::weak_ptr<Playlist> wpl)
                                } else {
                                        track->diskstream()->use_playlist(ipl);
                                }
-                               
-                               //(*i)->get_dis
                        }
                }
        }
@@ -1647,7 +1608,7 @@ RouteTimeAxisView::map_frozen ()
                return;
        }
 
-       ENSURE_GUI_THREAD (mem_fun(*this, &RouteTimeAxisView::map_frozen));
+       ENSURE_GUI_THREAD (*this, &RouteTimeAxisView::map_frozen)
 
        switch (track()->freeze_state()) {
        case Track::Frozen:
@@ -1698,7 +1659,7 @@ RouteTimeAxisView::toggle_automation_track (Evoral::Parameter param)
                }
 
                /* now trigger a redisplay */
-               
+
                if (!no_redraw) {
                         _route->gui_changed (X_("track_height"), (void *) 0); /* EMIT_SIGNAL */
                }
@@ -1712,7 +1673,7 @@ RouteTimeAxisView::automation_track_hidden (Evoral::Parameter param)
        if (!ran) {
                return;
        }
-       
+
        // if Evoral::Parameter::operator< doesn't obey strict weak ordering, we may crash here....
        _show_automation.erase(param);
        ran->track->get_state_node()->add_property (X_("shown"), X_("no"));
@@ -1721,7 +1682,9 @@ RouteTimeAxisView::automation_track_hidden (Evoral::Parameter param)
                ran->menu_item->set_active (false);
        }
 
-        _route->gui_changed ("visible_tracks", (void *) 0); /* EMIT_SIGNAL */
+       if (_route) {
+               _route->gui_changed ("visible_tracks", (void *) 0); /* EMIT_SIGNAL */
+       }
 }
 
 
@@ -1729,7 +1692,7 @@ void
 RouteTimeAxisView::show_all_automation ()
 {
        no_redraw = true;
-       
+
        /* Show our automation */
 
        map<Evoral::Parameter, RouteAutomationNode*>::iterator i;
@@ -1747,7 +1710,7 @@ RouteTimeAxisView::show_all_automation ()
                for (vector<ProcessorAutomationNode*>::iterator ii = (*i)->lines.begin(); ii != (*i)->lines.end(); ++ii) {
                        if ((*ii)->view == 0) {
                                add_processor_automation_curve ((*i)->processor, (*ii)->what);
-                       } 
+                       }
 
                        (*ii)->menu_item->set_active (true);
                }
@@ -1764,7 +1727,7 @@ void
 RouteTimeAxisView::show_existing_automation ()
 {
        no_redraw = true;
-       
+
        /* Show our automation */
 
        map<Evoral::Parameter, RouteAutomationNode*>::iterator i;
@@ -1789,7 +1752,7 @@ RouteTimeAxisView::show_existing_automation ()
        }
 
        no_redraw = false;
-       
+
        _route->gui_changed ("visible_tracks", (void *) 0); /* EMIT_SIGNAL */
 }
 
@@ -1829,7 +1792,7 @@ RouteTimeAxisView::region_view_added (RegionView* rv)
        if(is_audio_track()) {
                for (Children::iterator i = children.begin(); i != children.end(); ++i) {
                        boost::shared_ptr<AutomationTimeAxisView> atv;
-                       
+
                        if ((atv = boost::dynamic_pointer_cast<AutomationTimeAxisView> (*i)) != 0) {
                                atv->add_ghost(rv);
                        }
@@ -1880,7 +1843,7 @@ RouteTimeAxisView::find_processor_automation_node (boost::shared_ptr<Processor>
        return 0;
 }
 
-static string 
+static string
 legalize_for_xml_node (string str)
 {
        string::size_type pos;
@@ -1906,7 +1869,7 @@ RouteTimeAxisView::add_processor_automation_curve (boost::shared_ptr<Processor>
        ProcessorAutomationNode* pan;
 
        if ((pan = find_processor_automation_node (processor, what)) == 0) {
-               fatal << _("programming error: ")
+               error << _("programming error: ")
                      << string_compose (X_("processor automation curve for %1:%2 not registered with track!"),
                                  processor->name(), what)
                      << endmsg;
@@ -1934,7 +1897,7 @@ RouteTimeAxisView::add_processor_automation_curve (boost::shared_ptr<Processor>
                        new AutomationTimeAxisView (_session, _route, processor, control,
                                _editor, *this, false, parent_canvas, name, state_name));
 
-       pan->view->Hiding.connect (bind (mem_fun(*this, &RouteTimeAxisView::processor_automation_track_hidden), pan, processor));
+       pan->view->Hiding.connect (sigc::bind (sigc::mem_fun(*this, &RouteTimeAxisView::processor_automation_track_hidden), pan, processor));
 
        if (!pan->view->marked_for_display()) {
                pan->view->hide ();
@@ -1945,7 +1908,7 @@ RouteTimeAxisView::add_processor_automation_curve (boost::shared_ptr<Processor>
        add_child (pan->view);
 
        if (_view) {
-               _view->foreach_regionview (mem_fun(*pan->view.get(), &TimeAxisView::add_ghost));
+               _view->foreach_regionview (sigc::mem_fun(*pan->view.get(), &TimeAxisView::add_ghost));
        }
 
        processor->mark_automation_visible (what, true);
@@ -1970,14 +1933,14 @@ RouteTimeAxisView::add_existing_processor_automation_curves (boost::weak_ptr<Pro
        if (!processor) {
                return;
        }
-       
+
        set<Evoral::Parameter> s;
        boost::shared_ptr<AutomationLine> al;
 
        processor->what_has_visible_data (s);
 
        for (set<Evoral::Parameter>::iterator i = s.begin(); i != s.end(); ++i) {
-               
+
                if ((al = find_processor_automation_curve (processor, *i)) != 0) {
                        al->queue_reset ();
                } else {
@@ -1996,16 +1959,16 @@ RouteTimeAxisView::add_automation_child(Evoral::Parameter param, boost::shared_p
 
        add_child (track);
 
-       track->Hiding.connect (bind (mem_fun (*this, &RouteTimeAxisView::automation_track_hidden), param));
+       track->Hiding.connect (sigc::bind (sigc::mem_fun (*this, &RouteTimeAxisView::automation_track_hidden), param));
 
        bool hideit = (!show);
 
        if ((node = track->get_state_node()) != 0) {
                if  ((prop = node->property ("shown")) != 0) {
-                       if (prop->value() == "yes") {
+                       if (string_is_affirmative (prop->value())) {
                                hideit = false;
                        }
-               } 
+               }
        }
 
        _automation_tracks.insert(std::make_pair(param, new RouteAutomationNode(param, NULL, track)));
@@ -2029,14 +1992,15 @@ void
 RouteTimeAxisView::add_processor_to_subplugin_menu (boost::weak_ptr<Processor> p)
 {
        boost::shared_ptr<Processor> processor (p.lock ());
-       if (!processor) {
+
+       if (!processor || !processor->display_to_user ()) {
                return;
        }
-       
+
        using namespace Menu_Helpers;
        ProcessorAutomationInfo *rai;
        list<ProcessorAutomationInfo*>::iterator x;
-       
+
        const std::set<Evoral::Parameter>& automatable = processor->what_can_be_automated ();
        std::set<Evoral::Parameter> has_visible_automation;
 
@@ -2077,9 +2041,9 @@ RouteTimeAxisView::add_processor_to_subplugin_menu (boost::weak_ptr<Processor> p
 
                ProcessorAutomationNode* pan;
                CheckMenuItem* mitem;
-               
+
                string name = processor->describe_parameter (*i);
-               
+
                items.push_back (CheckMenuElem (name));
                mitem = dynamic_cast<CheckMenuItem*> (&items.back());
 
@@ -2090,9 +2054,9 @@ RouteTimeAxisView::add_processor_to_subplugin_menu (boost::weak_ptr<Processor> p
                if ((pan = find_processor_automation_node (processor, *i)) == 0) {
 
                        /* new item */
-                       
+
                        pan = new ProcessorAutomationNode (*i, mitem, *this);
-                       
+
                        rai->lines.push_back (pan);
 
                } else {
@@ -2101,7 +2065,7 @@ RouteTimeAxisView::add_processor_to_subplugin_menu (boost::weak_ptr<Processor> p
 
                }
 
-               mitem->signal_toggled().connect (bind (mem_fun(*this, &RouteTimeAxisView::processor_menu_item_toggled), rai, pan));
+               mitem->signal_toggled().connect (sigc::bind (sigc::mem_fun(*this, &RouteTimeAxisView::processor_menu_item_toggled), rai, pan));
        }
 
        /* add the menu for this processor, because the subplugin
@@ -2145,25 +2109,32 @@ RouteTimeAxisView::processor_menu_item_toggled (RouteTimeAxisView::ProcessorAuto
        if (redraw && !no_redraw) {
 
                /* now trigger a redisplay */
-               
+
                 _route->gui_changed ("visible_tracks", (void *) 0); /* EMIT_SIGNAL */
 
        }
 }
 
 void
-RouteTimeAxisView::processors_changed ()
+RouteTimeAxisView::processors_changed (RouteProcessorChange c)
 {
+       if (c.type == RouteProcessorChange::MeterPointChange) {
+               /* nothing to do if only the meter point has changed */
+               return;
+       }
+
        using namespace Menu_Helpers;
-       
+
        for (list<ProcessorAutomationInfo*>::iterator i = processor_automation.begin(); i != processor_automation.end(); ++i) {
                (*i)->valid = false;
        }
 
        subplugin_menu.items().clear ();
 
-       _route->foreach_processor (mem_fun (*this, &RouteTimeAxisView::add_processor_to_subplugin_menu));
-       _route->foreach_processor (mem_fun (*this, &RouteTimeAxisView::add_existing_processor_automation_curves));
+       _route->foreach_processor (sigc::mem_fun (*this, &RouteTimeAxisView::add_processor_to_subplugin_menu));
+       _route->foreach_processor (sigc::mem_fun (*this, &RouteTimeAxisView::add_existing_processor_automation_curves));
+
+       bool deleted_processor_automation = false;
 
        for (list<ProcessorAutomationInfo*>::iterator i = processor_automation.begin(); i != processor_automation.end(); ) {
 
@@ -2176,15 +2147,16 @@ RouteTimeAxisView::processors_changed ()
 
                        delete *i;
                        processor_automation.erase (i);
+                       deleted_processor_automation = true;
 
-               } 
+               }
 
                i = tmp;
        }
 
-       /* change in visibility was possible */
-
-       _route->gui_changed ("visible_tracks", this);
+       if (deleted_processor_automation) {
+               _route->gui_changed ("visible_tracks", this);
+       }
 }
 
 boost::shared_ptr<AutomationLine>
@@ -2195,7 +2167,7 @@ RouteTimeAxisView::find_processor_automation_curve (boost::shared_ptr<Processor>
        if ((pan = find_processor_automation_node (processor, what)) != 0) {
                if (pan->view) {
                        pan->view->line();
-               } 
+               }
        }
 
        return boost::shared_ptr<AutomationLine>();
@@ -2215,13 +2187,16 @@ RouteTimeAxisView::update_rec_display ()
        RouteUI::update_rec_display ();
        name_entry.set_sensitive (!_route->record_enabled());
 }
-               
+
 void
 RouteTimeAxisView::set_layer_display (LayerDisplay d)
 {
        if (_view) {
                _view->set_layer_display (d);
        }
+
+       ensure_xml_node ();
+       xml_node->add_property (N_("layer-display"), enum_2_string (d));
 }
 
 LayerDisplay
@@ -2235,7 +2210,7 @@ RouteTimeAxisView::layer_display () const
        return Overlaid;
 }
 
-       
+
 
 boost::shared_ptr<AutomationTimeAxisView>
 RouteTimeAxisView::automation_child(Evoral::Parameter param)
@@ -2285,12 +2260,12 @@ RouteTimeAxisView::clear_meter ()
 void
 RouteTimeAxisView::meter_changed (void *src)
 {
-       ENSURE_GUI_THREAD (bind (mem_fun(*this, &RouteTimeAxisView::meter_changed), src));
+       ENSURE_GUI_THREAD (*this, &RouteTimeAxisView::meter_changed, src)
        reset_meter();
 }
 
 void
-RouteTimeAxisView::io_changed (IOChange change, void *src)
+RouteTimeAxisView::io_changed (IOChange /*change*/, void */*src*/)
 {
        reset_meter ();
 }
@@ -2304,18 +2279,18 @@ RouteTimeAxisView::build_underlay_menu(Gtk::Menu* parent_menu) {
                Menu* gs_menu = manage (new Menu);
                gs_menu->set_name ("ArdourContextMenu");
                MenuList& gs_items = gs_menu->items();
-               
+
                parent_items.push_back (MenuElem (_("Underlays"), *gs_menu));
-               
+
                for(UnderlayList::iterator it = _underlay_streams.begin(); it != _underlay_streams.end(); ++it) {
                        gs_items.push_back(MenuElem(string_compose(_("Remove \"%1\""), (*it)->trackview().name()),
-                                                   bind(mem_fun(*this, &RouteTimeAxisView::remove_underlay), *it)));
+                                                   sigc::bind(sigc::mem_fun(*this, &RouteTimeAxisView::remove_underlay), *it)));
                }
        }
 }
 
 bool
-RouteTimeAxisView::set_underlay_state() 
+RouteTimeAxisView::set_underlay_state()
 {
        if(!underlay_xml_node) {
                return false;
@@ -2324,7 +2299,7 @@ RouteTimeAxisView::set_underlay_state()
        XMLNodeList nlist = underlay_xml_node->children();
        XMLNodeConstIterator niter;
        XMLNode *child_node;
-       
+
        for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
                child_node = *niter;
 
@@ -2348,7 +2323,7 @@ RouteTimeAxisView::set_underlay_state()
 }
 
 void
-RouteTimeAxisView::add_underlay(StreamView* v, bool update_xml) 
+RouteTimeAxisView::add_underlay(StreamView* v, bool update_xml)
 {
        if(!v) {
                return;
@@ -2365,7 +2340,7 @@ RouteTimeAxisView::add_underlay(StreamView* v, bool update_xml)
                _underlay_streams.push_back(v);
                other._underlay_mirrors.push_back(this);
 
-               v->foreach_regionview(mem_fun(*this, &RouteTimeAxisView::add_ghost));
+               v->foreach_regionview(sigc::mem_fun(*this, &RouteTimeAxisView::add_ghost));
 
                if(update_xml) {
                        if(!underlay_xml_node) {
@@ -2381,7 +2356,7 @@ RouteTimeAxisView::add_underlay(StreamView* v, bool update_xml)
 }
 
 void
-RouteTimeAxisView::remove_underlay(StreamView* v) 
+RouteTimeAxisView::remove_underlay(StreamView* v)
 {
        if(!v) {
                return;
@@ -2398,7 +2373,7 @@ RouteTimeAxisView::remove_underlay(StreamView* v)
                        /*NOTREACHED*/
                }
 
-               v->foreach_regionview(mem_fun(*this, &RouteTimeAxisView::remove_ghost));
+               v->foreach_regionview(sigc::mem_fun(*this, &RouteTimeAxisView::remove_ghost));
 
                _underlay_streams.erase(it);
                other._underlay_mirrors.erase(gm);
@@ -2413,23 +2388,19 @@ void
 RouteTimeAxisView::set_button_names ()
 {
        rec_enable_button_label.set_text (_("r"));
-       solo_button_label.set_text (_("s"));
-       mute_button_label.set_text (_("m"));
-}
-
-void
-RouteTimeAxisView::set_route_group_to_new ()
-{
-       RouteGroup* g = new RouteGroup (_session, "", RouteGroup::Active);
-
-       RouteGroupDialog d (g, Gtk::Stock::NEW);
-       int const r = d.do_run ();
 
-       if (r == Gtk::RESPONSE_OK) {
-               _session.add_route_group (g);
-               _route->set_route_group (g, this);
+       if (Config->get_solo_control_is_listen_control()) {
+               switch (Config->get_listen_position()) {
+               case AfterFaderListen:
+                       solo_button_label.set_text (_("A"));
+                       break;
+               case PreFaderListen:
+                       solo_button_label.set_text (_("P"));
+                       break;
+               }
        } else {
-               delete g;
+               solo_button_label.set_text (_("s"));
        }
-}
 
+       mute_button_label.set_text (_("m"));
+}