Fix Mixbus action fc83d044f8 & 65bda27d4 rebase ordering
[ardour.git] / gtk2_ardour / mixer_ui.cc
index 0668e1a10cda689a416c7461340171f59a578d23..b56ed4d601a1b8affb8a7d595886cd0e343ad3d0 100644 (file)
 
 #include <boost/foreach.hpp>
 
+#include <glibmm/threads.h>
+
 #include <gtkmm/accelmap.h>
+#include <gtkmm/stock.h>
 
 #include "pbd/convert.h"
 #include "pbd/stacktrace.h"
 #include "pbd/unwind.h"
 
-#include <glibmm/threads.h>
-
-#include <gtkmm2ext/gtk_ui.h>
-#include <gtkmm2ext/keyboard.h>
-#include <gtkmm2ext/utils.h>
-#include <gtkmm2ext/tearoff.h>
-#include <gtkmm2ext/window_title.h>
-#include <gtkmm2ext/doi.h>
-
 #include "ardour/amp.h"
 #include "ardour/debug.h"
 #include "ardour/audio_track.h"
 #include "ardour/midi_track.h"
 #include "ardour/plugin_manager.h"
 #include "ardour/route_group.h"
+#include "ardour/selection.h"
 #include "ardour/session.h"
 #include "ardour/vca.h"
 #include "ardour/vca_manager.h"
 
+#include "gtkmm2ext/gtk_ui.h"
+#include "gtkmm2ext/keyboard.h"
+#include "gtkmm2ext/utils.h"
+#include "gtkmm2ext/window_title.h"
+#include "gtkmm2ext/doi.h"
+
+#include "widgets/tearoff.h"
+
 #include "keyboard.h"
 #include "mixer_ui.h"
 #include "mixer_strip.h"
@@ -60,7 +63,6 @@
 #include "public_editor.h"
 #include "mouse_cursors.h"
 #include "ardour_ui.h"
-#include "prompter.h"
 #include "utils.h"
 #include "route_sorter.h"
 #include "actions.h"
@@ -101,22 +103,21 @@ Mixer_UI::Mixer_UI ()
        , no_track_list_redisplay (false)
        , in_group_row_change (false)
        , track_menu (0)
-       , _monitor_section (0)
        , _plugin_selector (0)
        , _strip_width (UIConfiguration::instance().get_default_narrow_ms() ? Narrow : Wide)
+       , _spill_scroll_position (0)
        , ignore_reorder (false)
-        , _in_group_rebuild_or_clear (false)
-        , _route_deletion_in_progress (false)
-       , _following_editor_selection (false)
+       , _in_group_rebuild_or_clear (false)
+       , _route_deletion_in_progress (false)
        , _maximised (false)
-       , _show_mixer_list (true)
-       , myactions (X_("mixer"))
+       , _strip_selection_change_without_scroll (false)
+       , _selection (*this, *this)
 {
-       register_actions ();
        load_bindings ();
+       register_actions ();
        _content.set_data ("ardour-bindings", bindings);
 
-       PresentationInfo::Change.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_presentation_info, this), gui_context());
+       PresentationInfo::Change.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::presentation_info_changed, this, _1), gui_context());
 
        scroller.set_can_default (true);
        // set_default (scroller);
@@ -132,14 +133,40 @@ Mixer_UI::Mixer_UI ()
        scroller_base.drag_dest_set (target_table);
        scroller_base.signal_drag_data_received().connect (sigc::mem_fun(*this, &Mixer_UI::scroller_drag_data_received));
 
-       // add as last item of strip packer
+       /* create a button to add VCA strips ... will get packed in redisplay_track_list() */
+       Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
+       w->show ();
+       add_vca_button.add (*w);
+       add_vca_button.set_can_focus(false);
+       add_vca_button.signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
+
+       /* create a button to add mixer strips */
+       w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
+       w->show ();
+       add_button.add (*w);
+       add_button.set_can_focus(false);
+       add_button.signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
+
+       /* add as last item of strip packer */
        strip_packer.pack_end (scroller_base, true, true);
+       strip_packer.pack_end (add_button, false, false);
+
+#ifdef MIXBUS
+       /* create a drop-shadow at the end of the mixer strips */
+       mb_shadow.set_size_request( 4, -1 );
+       mb_shadow.set_name("EditorWindow");
+       mb_shadow.show();
+       strip_packer.pack_end (mb_shadow, false, false);
+#endif
 
        _group_tabs = new MixerGroupTabs (this);
        VBox* b = manage (new VBox);
+       b->set_spacing (0);
+       b->set_border_width (0);
        b->pack_start (*_group_tabs, PACK_SHRINK);
        b->pack_start (strip_packer);
        b->show_all ();
+       b->signal_scroll_event().connect (sigc::mem_fun (*this, &Mixer_UI::on_scroll_event), false);
 
        scroller.add (*b);
        scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
@@ -182,37 +209,13 @@ Mixer_UI::Mixer_UI ()
        group_display_scroller.add (group_display);
        group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 
-       HBox* route_group_display_button_box = manage (new HBox());
-
-       Button* route_group_add_button = manage (new Button ());
-       Button* route_group_remove_button = manage (new Button ());
-
-       Widget* w;
-
-       w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
-       w->show();
-       route_group_add_button->add (*w);
-
-       w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
-       w->show();
-       route_group_remove_button->add (*w);
-
-       route_group_display_button_box->set_homogeneous (true);
-
-       route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
-       route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
-
-       route_group_display_button_box->add (*route_group_add_button);
-       route_group_display_button_box->add (*route_group_remove_button);
 
        group_display_vbox.pack_start (group_display_scroller, true, true);
-       group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 
        group_display_frame.set_name ("BaseFrame");
        group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
        group_display_frame.add (group_display_vbox);
 
-
        list<TargetEntry> target_list;
        target_list.push_back (TargetEntry ("PluginPresetPtr"));
 
@@ -225,7 +228,6 @@ Mixer_UI::Mixer_UI ()
        favorite_plugins_display.set_headers_visible (true);
        favorite_plugins_display.set_rules_hint (true);
        favorite_plugins_display.set_can_focus (false);
-       favorite_plugins_display.set_tooltip_column (0);
        favorite_plugins_display.add_object_drag (favorite_plugins_columns.plugin.index(), "PluginFavoritePtr");
        favorite_plugins_display.set_drag_column (favorite_plugins_columns.name.index());
        favorite_plugins_display.add_drop_targets (target_list);
@@ -234,6 +236,9 @@ Mixer_UI::Mixer_UI ()
        favorite_plugins_display.signal_drop.connect (sigc::mem_fun (*this, &Mixer_UI::plugin_drop));
        favorite_plugins_display.signal_row_expanded().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
        favorite_plugins_display.signal_row_collapsed().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
+       if (UIConfiguration::instance().get_use_tooltips()) {
+               favorite_plugins_display.set_tooltip_column (0);
+       }
        favorite_plugins_model->signal_row_has_child_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::sync_treeview_favorite_ui_state));
 
        favorite_plugins_scroller.add (favorite_plugins_display);
@@ -241,7 +246,11 @@ Mixer_UI::Mixer_UI ()
 
        favorite_plugins_frame.set_name ("BaseFrame");
        favorite_plugins_frame.set_shadow_type (Gtk::SHADOW_IN);
-       favorite_plugins_frame.add (favorite_plugins_scroller);
+       favorite_plugins_frame.add (favorite_plugins_vbox);
+
+       favorite_plugins_vbox.pack_start (favorite_plugins_scroller, true, true);
+       favorite_plugins_vbox.pack_start (favorite_plugins_tag_combo, false, false);
+       favorite_plugins_tag_combo.signal_changed().connect (sigc::mem_fun (*this, &Mixer_UI::tag_combo_changed));
 
        rhs_pane1.add (favorite_plugins_frame);
        rhs_pane1.add (track_display_frame);
@@ -251,23 +260,12 @@ Mixer_UI::Mixer_UI ()
 
        list_vpacker.pack_start (rhs_pane2, true, true);
 
-       string vca_text = _("Control Masters");
-       Gtk::HBox* vca_top_padding = manage (new Gtk::HBox);
-       vca_top_padding->set_size_request (-1, 2);
-       vca_vpacker.pack_start (*vca_top_padding, false, false);
-
-       vca_label.set_text (vca_text);
-       vca_label_bar.set_size_request (-1, 16); /* must match height in GroupTabs::set_size_request() */
-
-       vca_label_bar.set_name (X_("VCALabelBar"));
-       vca_label_bar.add (vca_label);
-
+       vca_label_bar.set_size_request (-1, 16 + 1); /* must match height in GroupTabs::set_size_request()  + 1 border px*/
        vca_vpacker.pack_start (vca_label_bar, false, false);
 
        vca_scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
        vca_scroller_base.set_name (X_("MixerWindow"));
        vca_scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::masters_scroller_button_release), false);
-       vca_hpacker.pack_end (vca_scroller_base, true, true);
 
        vca_scroller.add (vca_hpacker);
        vca_scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
@@ -284,36 +282,30 @@ Mixer_UI::Mixer_UI ()
        list_hpane.set_check_divider_position (true);
        list_hpane.add (list_vpacker);
        list_hpane.add (global_hpacker);
-
+       list_hpane.set_child_minsize (list_vpacker, 30);
 
        XMLNode const * settings = ARDOUR_UI::instance()->mixer_settings();
-       XMLProperty const * prop;
        float fract;
 
-       {
-               LocaleGuard lg;
+       if (!settings || !settings->get_property ("mixer-rhs-pane1-pos", fract) || fract > 1.0) {
+               fract = 0.6f;
+       }
+       rhs_pane1.set_divider (0, fract);
 
-               if (!settings || ((prop = settings->property ("mixer-rhs-pane1-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
-                       rhs_pane1.set_divider (0, 0.6f);
-               } else {
-                       rhs_pane1.set_divider (0, fract);
-               }
-               if (!settings || ((prop = settings->property ("mixer-rhs-pane2-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
-                       rhs_pane2.set_divider (0, 0.7f);
-               } else {
-                       rhs_pane2.set_divider (0, fract);
-               }
-               if (!settings || ((prop = settings->property ("mixer-list-hpane-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
-                       list_hpane.set_divider (0, 0.2f);
-               } else {
-                       list_hpane.set_divider (0, fract);
-               }
-               if (!settings || ((prop = settings->property ("mixer-inner-pane-pos")) == 0)  || ((fract = atof (prop->value())) > 1.0)) {
-                       inner_pane.set_divider (0, 0.8f);
-               } else {
-                       inner_pane.set_divider (0, atof (prop->value()));
-               }
+       if (!settings || !settings->get_property ("mixer-rhs-pane2-pos", fract) || fract > 1.0) {
+               fract = 0.7f;
        }
+       rhs_pane2.set_divider (0, fract);
+
+       if (!settings || !settings->get_property ("mixer-list-hpane-pos", fract) || fract > 1.0) {
+               fract = 0.2f;
+       }
+       list_hpane.set_divider (0, fract);
+
+       if (!settings || !settings->get_property ("mixer-inner-pane-pos", fract) || fract > 1.0) {
+               fract = 0.8f;
+       }
+       inner_pane.set_divider (0, fract);
 
        rhs_pane1.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
        rhs_pane2.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
@@ -324,10 +316,6 @@ Mixer_UI::Mixer_UI ()
 
        update_title ();
 
-       route_group_display_button_box->show();
-       route_group_add_button->show();
-       route_group_remove_button->show();
-
        _content.show ();
        _content.set_name ("MixerWindow");
 
@@ -338,7 +326,6 @@ Mixer_UI::Mixer_UI ()
        mixer_scroller_vpacker.show();
        list_vpacker.show();
        group_display_button_label.show();
-       group_display_button.show();
        group_display_scroller.show();
        favorite_plugins_scroller.show();
        group_display_vbox.show();
@@ -348,7 +335,6 @@ Mixer_UI::Mixer_UI ()
        rhs_pane2.show();
        strip_packer.show();
        inner_pane.show();
-       vca_top_padding->show ();
        vca_scroller.show();
        vca_vpacker.show();
        vca_hpacker.show();
@@ -359,8 +345,15 @@ Mixer_UI::Mixer_UI ()
        list_hpane.show();
        group_display.show();
        favorite_plugins_display.show();
+       add_button.show ();
+
+       XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
+       if (mnode) {
+               _monitor_section.tearoff().set_state (*mnode);
+       }
 
        MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
+       VCAMasterStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_master, this, _1), gui_context());
 
        /* handle escape */
 
@@ -371,20 +364,30 @@ Mixer_UI::Mixer_UI ()
 #else
 #error implement deferred Plugin-Favorite list
 #endif
-       PluginManager::instance ().PluginListChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
-       PluginManager::instance ().PluginStatusesChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
+
+       PluginManager::instance ().PluginListChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::plugin_list_changed, this), gui_context());
+       PluginManager::instance ().PluginStatusChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::plugin_list_changed, this), gui_context());
        ARDOUR::Plugin::PresetsChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 }
 
 Mixer_UI::~Mixer_UI ()
 {
-       if (_monitor_section) {
-               monitor_section_detached ();
-               delete _monitor_section;
-       }
+       monitor_section_detached ();
+
        delete _plugin_selector;
+       delete track_menu;
 }
 
+struct MixerStripSorter {
+       bool operator() (const MixerStrip* ms_a, const MixerStrip* ms_b)
+       {
+               boost::shared_ptr<ARDOUR::Stripable> const& a = ms_a->stripable ();
+               boost::shared_ptr<ARDOUR::Stripable> const& b = ms_b->stripable ();
+               return ARDOUR::Stripable::Sorter(true)(a, b);
+       }
+};
+
+
 void
 Mixer_UI::escape ()
 {
@@ -392,9 +395,9 @@ Mixer_UI::escape ()
 }
 
 void
-Mixer_UI::track_editor_selection ()
+Mixer_UI::tag_combo_changed ()
 {
-       PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
+       refill_favorite_plugins();
 }
 
 Gtk::Window*
@@ -404,14 +407,16 @@ Mixer_UI::use_own_window (bool and_fill_it)
 
        Gtk::Window* win = Tabbable::use_own_window (and_fill_it);
 
-
        if (win && new_window) {
                win->set_name ("MixerWindow");
                ARDOUR_UI::instance()->setup_toplevel_window (*win, _("Mixer"), this);
-               win->signal_scroll_event().connect (sigc::mem_fun (*this, &Mixer_UI::on_scroll_event), false);
                win->signal_event().connect (sigc::bind (sigc::ptr_fun (&Keyboard::catch_user_event_for_pre_dialog_focus), win));
                win->set_data ("ardour-bindings", bindings);
                update_title ();
+               if (!win->get_focus()) {
+                       /* set focus widget to something, anything */
+                       win->set_focus (scroller);
+               }
        }
 
        return win;
@@ -458,7 +463,7 @@ Mixer_UI::remove_master (VCAMasterStrip* vms)
 
        for (ri = rows.begin(); ri != rows.end(); ++ri) {
                if ((*ri)[stripable_columns.strip] == vms) {
-                        PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
+                       PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
                        track_model->erase (ri);
                        break;
                }
@@ -509,7 +514,7 @@ Mixer_UI::add_stripables (StripableList& slist)
        bool from_scratch = (track_model->children().size() == 0);
        uint32_t nroutes = 0;
 
-       slist.sort (StripablePresentationInfoSorter());
+       slist.sort (Stripable::Sorter());
 
        for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
                boost::shared_ptr<Stripable> s = (*it)[stripable_columns.stripable];
@@ -520,6 +525,7 @@ Mixer_UI::add_stripables (StripableList& slist)
 
                nroutes++;
 
+               // XXX what does this special case do?
                if (s->presentation_info().order() == (slist.front()->presentation_info().order() + slist.size())) {
                        insert_iter = it;
                        break;
@@ -528,7 +534,6 @@ Mixer_UI::add_stripables (StripableList& slist)
 
        MixerStrip* strip;
 
-
        try {
                PBD::Unwinder<bool> uw (no_track_list_redisplay, true);
 
@@ -550,7 +555,7 @@ Mixer_UI::add_stripables (StripableList& slist)
                                row[stripable_columns.strip] = vms;
                                row[stripable_columns.stripable] = vca;
 
-                               vms->CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_master, this, _1), gui_context());
+                               vms->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::vca_button_release_event), vms));
 
                        } else if ((route = boost::dynamic_pointer_cast<Route> (*s))) {
 
@@ -560,23 +565,18 @@ Mixer_UI::add_stripables (StripableList& slist)
 
                                if (route->is_monitor()) {
 
-                                       if (!_monitor_section) {
-                                               _monitor_section = new MonitorSection (_session);
-
-                                               XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
-                                               if (mnode) {
-                                                       _monitor_section->tearoff().set_state (*mnode);
-                                               }
-                                       }
-
-                                       out_packer.pack_end (_monitor_section->tearoff(), false, false);
-                                       _monitor_section->set_session (_session);
-                                       _monitor_section->tearoff().show_all ();
+                                       out_packer.pack_end (_monitor_section.tearoff(), false, false);
+                                       _monitor_section.set_session (_session);
+                                       _monitor_section.tearoff().show_all ();
 
-                                       _monitor_section->tearoff().Detach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_detached));
-                                       _monitor_section->tearoff().Attach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_attached));
+                                       _monitor_section.tearoff().Detach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_detached));
+                                       _monitor_section.tearoff().Attach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_attached));
 
-                                       monitor_section_attached ();
+                                       if (_monitor_section.tearoff().torn_off()) {
+                                               monitor_section_detached ();
+                                       } else {
+                                               monitor_section_attached ();
+                                       }
 
                                        route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 
@@ -596,7 +596,12 @@ Mixer_UI::add_stripables (StripableList& slist)
 
                                show_strip (strip);
 
-                               if (!route->is_master()) {
+                               if (route->is_master()) {
+
+                                       out_packer.pack_start (*strip, false, false);
+                                       strip->set_packed (true);
+
+                               } else {
 
                                        TreeModel::Row row = *(track_model->insert (insert_iter));
 
@@ -604,15 +609,6 @@ Mixer_UI::add_stripables (StripableList& slist)
                                        row[stripable_columns.visible] = strip->marked_for_display();
                                        row[stripable_columns.stripable] = route;
                                        row[stripable_columns.strip] = strip;
-
-                                       if (nroutes != 0) {
-                                               _selection.add (strip);
-                                       }
-
-                               } else {
-
-                                       out_packer.pack_start (*strip, false, false);
-                                       strip->set_packed (true);
                                }
 
                                strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
@@ -621,7 +617,7 @@ Mixer_UI::add_stripables (StripableList& slist)
 
                        (*s)->presentation_info().PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
                        (*s)->PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
-                                               }
+               }
 
        } catch (const std::exception& e) {
                error << string_compose (_("Error adding GUI elements for new tracks/busses %1"), e.what()) << endmsg;
@@ -629,6 +625,9 @@ Mixer_UI::add_stripables (StripableList& slist)
 
        track_display.set_model (track_model);
 
+       /* catch up on selection state, which we left to the editor to set */
+       sync_treeview_from_presentation_info (PropertyChange (Properties::selected));
+
        if (!from_scratch) {
                sync_presentation_info_from_treeview ();
        }
@@ -645,20 +644,24 @@ Mixer_UI::deselect_all_strip_processors ()
 }
 
 void
-Mixer_UI::select_strip (MixerStrip& ms, bool add)
+Mixer_UI::select_none ()
+{
+       _selection.clear_routes();
+       deselect_all_strip_processors();
+}
+
+void
+Mixer_UI::select_next_strip ()
 {
-       if (add) {
-               _selection.add (&ms);
-       } else {
-               _selection.set (&ms);
-       }
+       deselect_all_strip_processors();
+       _session->selection().select_next_stripable (true, false);
 }
 
 void
-Mixer_UI::select_none ()
+Mixer_UI::select_prev_strip ()
 {
-       _selection.clear_routes();
        deselect_all_strip_processors();
+       _session->selection().select_prev_stripable (true, false);
 }
 
 void
@@ -686,15 +689,34 @@ Mixer_UI::remove_strip (MixerStrip* strip)
                strips.erase (i);
        }
 
+       PBD::Unwinder<bool> uwi (ignore_reorder, true);
+
        for (ri = rows.begin(); ri != rows.end(); ++ri) {
                if ((*ri)[stripable_columns.strip] == strip) {
-                        PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
+                       PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
                        track_model->erase (ri);
                        break;
                }
        }
 }
 
+void
+Mixer_UI::presentation_info_changed (PropertyChange const & what_changed)
+{
+       if (what_changed.contains (Properties::selected)) {
+               _selection.presentation_info_changed (what_changed);
+       }
+
+       PropertyChange soh;
+       soh.add (Properties::selected);
+       soh.add (Properties::order);
+       soh.add (Properties::hidden);
+
+       if (what_changed.contains (soh)) {
+               sync_treeview_from_presentation_info (what_changed);
+       }
+}
+
 void
 Mixer_UI::sync_presentation_info_from_treeview ()
 {
@@ -712,46 +734,55 @@ Mixer_UI::sync_presentation_info_from_treeview ()
 
        TreeModel::Children::iterator ri;
        bool change = false;
-       uint32_t order = 0;
+
+       PresentationInfo::order_t master_key = _session->master_order_key ();
+       PresentationInfo::order_t order = 0;
+
+       PresentationInfo::ChangeSuspender cs;
 
        for (ri = rows.begin(); ri != rows.end(); ++ri) {
                bool visible = (*ri)[stripable_columns.visible];
                boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 
+#ifndef NDEBUG // these should not exist in the mixer's treeview
                if (!stripable) {
+                       assert (0);
                        continue;
                }
-
-               /* Monitor and Auditioner do not get their presentation
-                * info reset here.
-                */
-
                if (stripable->is_monitor() || stripable->is_auditioner()) {
+                       assert (0);
                        continue;
                }
-
-               /* Master also doesn't get set here but since the editor allows
-                * it to be reordered, we need to preserve its ordering.
-                */
+               if (stripable->is_master()) {
+                       assert (0);
+                       continue;
+               }
+#endif
 
                stripable->presentation_info().set_hidden (!visible);
 
+               // leave master where it is.
+               if (order == master_key) {
+                       ++order;
+               }
+
                if (order != stripable->presentation_info().order()) {
-                       stripable->set_presentation_order (order, false);
+                       stripable->set_presentation_order (order);
                        change = true;
                }
-
                ++order;
        }
 
+       change |= _session->ensure_stripable_sort_order ();
+
        if (change) {
                DEBUG_TRACE (DEBUG::OrderKeys, "... notify PI change from mixer GUI\n");
-               _session->notify_presentation_info_change ();
+               _session->set_dirty();
        }
 }
 
 void
-Mixer_UI::sync_treeview_from_presentation_info ()
+Mixer_UI::sync_treeview_from_presentation_info (PropertyChange const & what_changed)
 {
        if (!_session || _session->deletion_in_progress()) {
                return;
@@ -773,21 +804,20 @@ Mixer_UI::sync_treeview_from_presentation_info ()
                return;
        }
 
-       OrderingKeys sorted;
-
+       TreeOrderKeys sorted;
        for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
                boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
-               sorted.push_back (OrderKeys (old_order, stripable->presentation_info().order()));
+               sorted.push_back (TreeOrderKey (old_order, stripable));
        }
 
-       SortByNewDisplayOrder cmp;
+       TreeOrderKeySorter cmp;
 
        sort (sorted.begin(), sorted.end(), cmp);
        neworder.assign (sorted.size(), 0);
 
        uint32_t n = 0;
 
-       for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
+       for (TreeOrderKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 
                neworder[n] = sr->old_display_order;
 
@@ -801,35 +831,39 @@ Mixer_UI::sync_treeview_from_presentation_info ()
                track_model->reorder (neworder);
        }
 
-       redisplay_track_list ();
-}
-
-void
-Mixer_UI::follow_editor_selection ()
-{
-       if (_following_editor_selection) {
-               return;
-       }
+       if (what_changed.contains (Properties::selected)) {
 
-       _following_editor_selection = true;
-       _selection.block_routes_changed (true);
+               PresentationInfo::ChangeSuspender cs;
 
-       TrackSelection& s (PublicEditor::instance().get_selection().tracks);
+               for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
+                       boost::shared_ptr<Stripable> stripable = (*i)->stripable();
+                       if (stripable && stripable->is_selected()) {
+                               _selection.add (*i);
+                       } else {
+                               _selection.remove (*i);
+                       }
+               }
 
-       _selection.clear_routes ();
+               if (!_selection.axes.empty() && !PublicEditor::instance().track_selection_change_without_scroll () && !_strip_selection_change_without_scroll) {
+                       move_stripable_into_view ((*_selection.axes.begin())->stripable());
+               }
 
-       for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
-               TimeAxisView* tav = dynamic_cast<TimeAxisView*> (*i);
-               if (tav) {
-                       AxisView* axis = axis_by_stripable (tav->stripable());
-                       if (axis) {
-                               _selection.add (axis);
+               TreeModel::Children rows = track_model->children();
+               for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
+                       AxisView* av = (*i)[stripable_columns.strip];
+                       VCAMasterStrip* vms = dynamic_cast<VCAMasterStrip*> (av);
+                       if (!vms) {
+                               continue;
+                       }
+                       if (vms->vca() && vms->vca()->is_selected()) {
+                               _selection.add (vms);
+                       } else {
+                               _selection.remove (vms);
                        }
                }
        }
 
-       _following_editor_selection = false;
-       _selection.block_routes_changed (false);
+       redisplay_track_list ();
 }
 
 
@@ -845,8 +879,20 @@ Mixer_UI::strip_by_route (boost::shared_ptr<Route> r) const
        return 0;
 }
 
+MixerStrip*
+Mixer_UI::strip_by_stripable (boost::shared_ptr<Stripable> s) const
+{
+       for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
+               if ((*i)->stripable() == s) {
+                       return (*i);
+               }
+       }
+
+       return 0;
+}
+
 AxisView*
-Mixer_UI::axis_by_stripable (boost::shared_ptr<Stripable> s) const
+Mixer_UI::axis_view_by_stripable (boost::shared_ptr<Stripable> s) const
 {
        for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
                if ((*i)->stripable() == s) {
@@ -854,24 +900,61 @@ Mixer_UI::axis_by_stripable (boost::shared_ptr<Stripable> s) const
                }
        }
 
+       TreeModel::Children rows = track_model->children();
+       for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
+               AxisView* av = (*i)[stripable_columns.strip];
+               VCAMasterStrip* vms = dynamic_cast<VCAMasterStrip*> (av);
+               if (vms && vms->stripable () == s) {
+                       return av;
+               }
+       }
+
+       return 0;
+}
+
+AxisView*
+Mixer_UI::axis_view_by_control (boost::shared_ptr<AutomationControl> c) const
+{
+       for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
+               if ((*i)->control() == c) {
+                       return (*i);
+               }
+       }
+
        return 0;
 }
 
 bool
 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 {
+       /* Selecting a mixer-strip may also select grouped-tracks, and
+        * presentation_info_changed() being emitted and
+        * _selection.axes.begin() is being moved into view. This may
+        * effectively move the track that was clicked-on out of view.
+        *
+        * So here only the track that is actually clicked-on is moved into
+        * view (in case it's partially visible)
+        */
+       PBD::Unwinder<bool> uw (_strip_selection_change_without_scroll, true);
+       move_stripable_into_view (strip->stripable());
+
        if (ev->button == 1) {
                if (_selection.selected (strip)) {
                        /* primary-click: toggle selection state of strip */
                        if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
-                               _selection.remove (strip);
+                               _selection.remove (strip, true);
                        } else if (_selection.axes.size() > 1) {
                                /* de-select others */
                                _selection.set (strip);
                        }
+                       PublicEditor& pe = PublicEditor::instance();
+                       TimeAxisView* tav = pe.time_axis_view_from_stripable (strip->stripable());
+                       if (tav) {
+                               pe.set_selected_mixer_strip (*tav);
+                       }
                } else {
                        if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
-                               _selection.add (strip);
+                               _selection.add (strip, true);
                        } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 
                                /* extend selection */
@@ -880,10 +963,13 @@ Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
                                bool accumulate = false;
                                bool found_another = false;
 
-                               tmp.push_back (strip);
+                               strips.sort (MixerStripSorter());
 
                                for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
-                                       if ((*i) == strip) {
+                                       MixerStrip* ms = *i;
+                                       assert (ms);
+
+                                       if (ms == strip) {
                                                /* hit clicked strip, start accumulating till we hit the first
                                                   selected strip
                                                */
@@ -893,7 +979,7 @@ Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
                                                } else {
                                                        accumulate = true;
                                                }
-                                       } else if (_selection.selected (*i)) {
+                                       } else if (_selection.selected (ms)) {
                                                /* hit selected strip. if currently accumulating others,
                                                   we're done. if not accumulating others, start doing so.
                                                */
@@ -906,17 +992,21 @@ Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
                                                }
                                        } else {
                                                if (accumulate) {
-                                                       tmp.push_back (*i);
+                                                       tmp.push_back (ms);
                                                }
                                        }
                                }
 
+                               tmp.push_back (strip);
+
                                if (found_another) {
+                                       PresentationInfo::ChangeSuspender cs;
                                        for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
-                                               _selection.add (*i);
+                                               _selection.add (*i, true);
                                        }
-                               } else
+                               } else {
                                        _selection.set (strip);  //user wants to start a range selection, but there aren't any others selected yet
+                               }
                        } else {
                                _selection.set (strip);
                        }
@@ -926,10 +1016,18 @@ Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
        return true;
 }
 
+bool
+Mixer_UI::vca_button_release_event (GdkEventButton *ev, VCAMasterStrip *strip)
+{
+       _selection.set (strip);
+       return true;
+}
+
 void
 Mixer_UI::set_session (Session* sess)
 {
        SessionHandlePtr::set_session (sess);
+       _monitor_section.set_session (sess);
 
        if (_plugin_selector) {
                _plugin_selector->set_session (_session);
@@ -938,10 +1036,12 @@ Mixer_UI::set_session (Session* sess)
        _group_tabs->set_session (sess);
 
        if (!_session) {
+               _selection.clear ();
                return;
        }
 
        refill_favorite_plugins();
+       refill_tag_combo();
 
        XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
        set_state (*node, 0);
@@ -967,6 +1067,13 @@ Mixer_UI::set_session (Session* sess)
        if (_visible) {
                show_window();
        }
+
+       /* catch up on selection state, etc. */
+
+       PropertyChange sc;
+       sc.add (Properties::selected);
+       _selection.presentation_info_changed (sc);
+
        start_updating ();
 }
 
@@ -986,9 +1093,7 @@ Mixer_UI::session_going_away ()
                delete (*i);
        }
 
-       if (_monitor_section) {
-               _monitor_section->tearoff().hide_visible ();
-       }
+       _monitor_section.tearoff().hide_visible ();
 
        monitor_section_detached ();
 
@@ -1086,15 +1191,15 @@ Mixer_UI::hide_strip (MixerStrip* ms)
 gint
 Mixer_UI::start_updating ()
 {
-    fast_screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
-    return 0;
+       fast_screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
+       return 0;
 }
 
 gint
 Mixer_UI::stop_updating ()
 {
-    fast_screen_update_connection.disconnect();
-    return 0;
+       fast_screen_update_connection.disconnect();
+       return 0;
 }
 
 void
@@ -1256,20 +1361,31 @@ Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
        DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
        sync_presentation_info_from_treeview ();
 
-        if (_route_deletion_in_progress) {
-                redisplay_track_list ();
-        }
+       if (_route_deletion_in_progress) {
+               redisplay_track_list ();
+       }
 }
 
 void
 Mixer_UI::spill_redisplay (boost::shared_ptr<VCA> vca)
 {
        TreeModel::Children rows = track_model->children();
+       std::list<boost::shared_ptr<VCA> > vcas;
+       vcas.push_back (vca);
+
+       for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
+               AxisView* av = (*i)[stripable_columns.strip];
+               VCAMasterStrip* vms = dynamic_cast<VCAMasterStrip*> (av);
+               if (vms && vms->vca()->slaved_to (vca)) {
+                       vcas.push_back (vms->vca());
+               }
+       }
 
-       for (TreeModel::Children::iterator i = rows.begin(); i != rows.end(); ++i) {
+       for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
 
                AxisView* av = (*i)[stripable_columns.strip];
                MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
+               bool const visible = (*i)[stripable_columns.visible];
 
                if (!strip) {
                        /* we're in the middle of changing a row, don't worry */
@@ -1285,7 +1401,15 @@ Mixer_UI::spill_redisplay (boost::shared_ptr<VCA> vca)
                        continue;
                }
 
-               if (strip->route()->slaved_to (vca)) {
+               bool slaved = false;
+               for (std::list<boost::shared_ptr<VCA> >::const_iterator m = vcas.begin(); m != vcas.end(); ++m) {
+                       if (strip->route()->slaved_to (*m)) {
+                               slaved = true;
+                               break;
+                       }
+               }
+
+               if (slaved && visible) {
 
                        if (strip->packed()) {
                                strip_packer.reorder_child (*strip, -1); /* put at end */
@@ -1311,11 +1435,16 @@ Mixer_UI::redisplay_track_list ()
                return;
        }
 
-       boost::shared_ptr<VCA> sv = spilled_vca.lock ();
-
-       if (sv) {
-               spill_redisplay (sv);
-               return;
+       boost::shared_ptr<Stripable> ss = spilled_strip.lock ();
+       if (ss) {
+               boost::shared_ptr<VCA> sv = boost::dynamic_pointer_cast<VCA> (ss);
+               if (sv) {
+                       if (_spill_scroll_position <= 0 && scroller.get_hscrollbar()) {
+                               _spill_scroll_position = scroller.get_hscrollbar()->get_adjustment()->get_value();
+                       }
+                       spill_redisplay (sv);
+                       return;
+               }
        }
 
        TreeModel::Children rows = track_model->children();
@@ -1323,7 +1452,12 @@ Mixer_UI::redisplay_track_list ()
        uint32_t n_masters = 0;
 
        container_clear (vca_hpacker);
+
        vca_hpacker.pack_end (vca_scroller_base, true, true);
+       vca_hpacker.pack_end (add_vca_button, false, false);
+
+       add_vca_button.show ();
+       vca_scroller_base.show();
 
        for (i = rows.begin(); i != rows.end(); ++i) {
 
@@ -1378,14 +1512,35 @@ Mixer_UI::redisplay_track_list ()
        /* update visibility of VCA assign buttons */
 
        if (n_masters == 0) {
+               //show/hide the channelstrip VCA assign buttons on channelstrips:
                UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::remove_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
+
+               Glib::RefPtr<Action> act = ActionManager::get_action ("Mixer", "ToggleVCAPane");
+               if (act) {
+                       act->set_sensitive (false);
+               }
+
+               //remove the VCA packer, but don't change our prior setting for show/hide:
                vca_vpacker.hide ();
        } else {
+               //show/hide the channelstrip VCA assign buttons on channelstrips:
                UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::add_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
-               vca_vpacker.show ();
+
+               Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleVCAPane");
+               act->set_sensitive (true);
+
+               //if we were showing VCAs before, show them now:
+               showhide_vcas (act->get_active ());
        }
 
        _group_tabs->set_dirty ();
+
+       if (_spill_scroll_position > 0 && scroller.get_hscrollbar()) {
+               Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
+               adj->set_value (max (adj->get_lower(), min (adj->get_upper(), _spill_scroll_position)));
+       }
+       _spill_scroll_position = 0;
+
 }
 
 void
@@ -1434,18 +1589,7 @@ void
 Mixer_UI::initial_track_display ()
 {
        StripableList sl;
-
-       boost::shared_ptr<RouteList> routes = _session->get_routes();
-
-       for (RouteList::iterator r = routes->begin(); r != routes->end(); ++r) {
-               sl.push_back (*r);
-       }
-
-       VCAList vcas = _session->vca_manager().vcas();
-
-       for (VCAList::iterator v = vcas.begin(); v != vcas.end(); ++v) {
-               sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
-       }
+       _session->get_stripables (sl);
 
        sl.sort (PresentationInfoMixerSorter());
 
@@ -1460,24 +1604,17 @@ Mixer_UI::initial_track_display ()
                add_stripables (sl);
        }
 
-       redisplay_track_list ();
-}
-
-void
-Mixer_UI::show_track_list_menu ()
-{
-       if (track_menu == 0) {
-               build_track_menu ();
-       }
-
-       track_menu->popup (1, gtk_get_current_event_time());
+       sync_treeview_from_presentation_info (Properties::order);
 }
 
 bool
 Mixer_UI::track_display_button_press (GdkEventButton* ev)
 {
        if (Keyboard::is_context_menu_event (ev)) {
-               show_track_list_menu ();
+               if (track_menu == 0) {
+                       build_track_menu ();
+               }
+               track_menu->popup (ev->button, ev->time);
                return true;
        }
        if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 1)) {
@@ -1502,13 +1639,23 @@ Mixer_UI::move_stripable_into_view (boost::shared_ptr<ARDOUR::Stripable> s)
        if (!scroller.get_hscrollbar()) {
                return;
        }
+       if (s->presentation_info().special () || s->presentation_info().flag_match (PresentationInfo::VCA)) {
+               return;
+       }
+#ifdef MIXBUS
+       if (s->mixbus ()) {
+               return;
+       }
+#endif
        bool found = false;
        int x0 = 0;
+       Gtk::Allocation alloc;
        for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
                if ((*i)->route() == s) {
                        int y;
                        found = true;
                        (*i)->translate_coordinates (strip_packer, 0, 0, x0, y);
+                       alloc = (*i)->get_allocation ();
                        break;
                }
        }
@@ -1517,8 +1664,13 @@ Mixer_UI::move_stripable_into_view (boost::shared_ptr<ARDOUR::Stripable> s)
        }
 
        Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
-       int sl = adj->get_value();
-       scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), x0 - 1.0)));
+
+       if (x0 < adj->get_value()) {
+               adj->set_value (max (adj->get_lower(), min (adj->get_upper(), (double) x0)));
+       } else if (x0 + alloc.get_width() >= adj->get_value() + adj->get_page_size()) {
+               int x1 = x0 + alloc.get_width() - adj->get_page_size();
+               adj->set_value (max (adj->get_lower(), min (adj->get_upper(), (double) x1)));
+       }
 }
 
 void
@@ -1535,10 +1687,10 @@ Mixer_UI::build_track_menu ()
        items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
        items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
        items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
-       items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
-       items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
        items.push_back (MenuElem (_("Show All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::show_all_miditracks)));
        items.push_back (MenuElem (_("Hide All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::hide_all_miditracks)));
+       items.push_back (MenuElem (_("Show All Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
+       items.push_back (MenuElem (_("Hide All Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
 
 }
 
@@ -1576,6 +1728,10 @@ Mixer_UI::stripable_property_changed (const PropertyChange& what_changed, boost:
                }
        }
 
+       if (s->is_master ()) {
+               return;
+       }
+
        error << _("track display list item for renamed strip not found!") << endmsg;
 }
 
@@ -1588,13 +1744,17 @@ Mixer_UI::group_display_button_press (GdkEventButton* ev)
        int celly;
 
        if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
-               _group_tabs->get_menu(0)->popup (1, ev->time);
+               if (ev->button == 3) {
+                       _group_tabs->get_menu(0)->popup (ev->button, ev->time);
+               }
                return true;
        }
 
        TreeIter iter = group_model->get_iter (path);
        if (!iter) {
-               _group_tabs->get_menu(0)->popup (1, ev->time);
+               if (ev->button == 3) {
+                       _group_tabs->get_menu(0)->popup (ev->button, ev->time);
+               }
                return true;
        }
 
@@ -1761,33 +1921,80 @@ Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange&
 }
 
 void
-Mixer_UI::show_mixer_list (bool yn)
+Mixer_UI::toggle_mixer_list ()
+{
+       Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleMixerList");
+       showhide_mixer_list (act->get_active());
+}
+
+void
+Mixer_UI::showhide_mixer_list (bool yn)
 {
        if (yn) {
                list_vpacker.show ();
        } else {
                list_vpacker.hide ();
        }
+}
 
-       _show_mixer_list = yn;
+void
+Mixer_UI::toggle_monitor_section ()
+{
+       Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleMonitorSection");
+       showhide_monitor_section (act->get_active());
 }
 
+
 void
-Mixer_UI::show_monitor_section (bool yn)
+Mixer_UI::showhide_monitor_section (bool yn)
 {
-       if (!monitor_section()) {
+       if (monitor_section().tearoff().torn_off()) {
                return;
        }
-       if (monitor_section()->tearoff().torn_off()) {
-               return;
+
+       if (yn) {
+               monitor_section().tearoff().show();
+       } else {
+               monitor_section().tearoff().hide();
        }
+}
+
+void
+Mixer_UI::toggle_vcas ()
+{
+       Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleVCAPane");
+       showhide_vcas (act->get_active());
+}
 
+void
+Mixer_UI::showhide_vcas (bool yn)
+{
        if (yn) {
-               monitor_section()->tearoff().show();
+               vca_vpacker.show();
+       } else {
+               vca_vpacker.hide();
+       }
+}
+
+#ifdef MIXBUS
+void
+Mixer_UI::toggle_mixbuses ()
+{
+       Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleMixbusPane");
+       showhide_mixbuses (act->get_active());
+}
+
+void
+Mixer_UI::showhide_mixbuses (bool on)
+{
+       if (on) {
+               mb_vpacker.show();
        } else {
-               monitor_section()->tearoff().hide();
+               mb_vpacker.hide();
        }
 }
+#endif
+
 
 void
 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
@@ -1907,7 +2114,6 @@ Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
 void
 Mixer_UI::scroller_drag_data_received (const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& data, guint info, guint time)
 {
-       printf ("Mixer_UI::scroller_drag_data_received\n");
        if (data.get_target() != "PluginFavoritePtr") {
                context->drag_finish (false, false, time);
                return;
@@ -1929,7 +2135,7 @@ Mixer_UI::scroller_drag_data_received (const Glib::RefPtr<Gdk::DragContext>& con
                if (!pip->is_instrument ()) {
                        continue;
                }
-               ARDOUR_UI::instance()->session_add_midi_track ((RouteGroup*) 0, 1, _("MIDI"), Config->get_strict_io (), pip, ppp->_preset.valid ? &ppp->_preset : 0, PresentationInfo::max_order);
+               ARDOUR_UI::instance()->session_add_midi_route (true, (RouteGroup*) 0, 1, _("MIDI"), Config->get_strict_io (), pip, ppp->_preset.valid ? &ppp->_preset : 0, PresentationInfo::max_order);
                ok = true;
        }
 
@@ -1972,106 +2178,161 @@ private:
 int
 Mixer_UI::set_state (const XMLNode& node, int version)
 {
-       XMLProperty const * prop;
-       LocaleGuard lg;
+       bool yn;
 
        Tabbable::set_state (node, version);
 
-       if ((prop = node.property ("narrow-strips"))) {
-               if (string_is_affirmative (prop->value())) {
+       if (node.get_property ("narrow-strips", yn)) {
+               if (yn) {
                        set_strip_width (Narrow);
                } else {
                        set_strip_width (Wide);
                }
        }
 
-       if ((prop = node.property ("show-mixer"))) {
-               if (string_is_affirmative (prop->value())) {
-                      _visible = true;
-               }
-       }
+       node.get_property ("show-mixer", _visible);
 
-       if ((prop = node.property ("maximised"))) {
-               bool yn = string_is_affirmative (prop->value());
-               Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
-               assert (act);
-               Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
-               bool fs = tact && tact->get_active();
+       if (node.get_property ("maximised", yn)) {
+               Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action (X_("Common"), X_("ToggleMaximalMixer"));
+               bool fs = act && act->get_active();
                if (yn ^ fs) {
                        ActionManager::do_action ("Common", "ToggleMaximalMixer");
                }
        }
 
-       if ((prop = node.property ("show-mixer-list"))) {
-               bool yn = string_is_affirmative (prop->value());
-               Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMixerList"));
-               assert (act);
-               Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
+       if (node.get_property ("show-mixer-list", yn)) {
+               Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action (X_("Mixer"), X_("ToggleMixerList"));
+
+               /* do it twice to force the change */
+               act->set_active (!yn);
+               act->set_active (yn);
+       }
+
+       if (node.get_property ("monitor-section-visible", yn)) {
+               Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action (X_("Mixer"), X_("ToggleMonitorSection"));
+               /* do it twice to force the change */
+               act->set_active (!yn);
+               act->set_active (yn);
+       }
+
+       if (node.get_property ("show-vca-pane", yn)) {
+               Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action (X_("Mixer"), X_("ToggleVCAPane"));
+               /* do it twice to force the change */
+               act->set_active (!yn);
+               act->set_active (yn);
+       }
 
+#ifdef MIXBUS
+       if (node.get_property ("show-mixbus-pane", yn)) {
+               Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action (X_("Mixer"), X_("ToggleMixbusPane"));
                /* do it twice to force the change */
-               tact->set_active (!yn);
-               tact->set_active (yn);
+               act->set_active (!yn);
+               act->set_active (yn);
        }
 
+#endif
 
-       XMLNode* plugin_order;
-       if ((plugin_order = find_named_node (node, "PluginOrder")) != 0) {
+       //check for the user's plugin_order file
+       XMLNode plugin_order_new(X_("PO"));
+       if (PluginManager::instance().load_plugin_order_file(plugin_order_new)) {
                store_current_favorite_order ();
                std::list<string> order;
-               const XMLNodeList& kids = plugin_order->children("PluginInfo");
+               const XMLNodeList& kids = plugin_order_new.children("PluginInfo");
                XMLNodeConstIterator i;
                for (i = kids.begin(); i != kids.end(); ++i) {
-                       if ((prop = (*i)->property ("unique-id"))) {
-                               std::string unique_id = prop->value();
+                       std::string unique_id;
+                       if ((*i)->get_property ("unique-id", unique_id)) {
                                order.push_back (unique_id);
-                               if ((prop = (*i)->property ("expanded"))) {
-                                       favorite_ui_state[unique_id] = string_is_affirmative (prop->value());
+                               if ((*i)->get_property ("expanded", yn)) {
+                                       favorite_ui_state[unique_id] = yn;
                                }
                        }
                }
                PluginStateSorter cmp (order);
                favorite_order.sort (cmp);
                sync_treeview_from_favorite_order ();
+
+       } else {
+               //if there is no user file, then use an existing one from instant.xml
+               //NOTE: if you are loading an old session, this might come from the session's instant.xml
+               //Todo:  in the next major version, we should probably stop doing the instant.xml check, and just use the new file
+               XMLNode* plugin_order;
+               if ((plugin_order = find_named_node (node, "PluginOrder")) != 0) {
+                       store_current_favorite_order ();
+                       std::list<string> order;
+                       const XMLNodeList& kids = plugin_order->children("PluginInfo");
+                       XMLNodeConstIterator i;
+                       for (i = kids.begin(); i != kids.end(); ++i) {
+                               std::string unique_id;
+                               if ((*i)->get_property ("unique-id", unique_id)) {
+                                       order.push_back (unique_id);
+                                       if ((*i)->get_property ("expanded", yn)) {
+                                               favorite_ui_state[unique_id] = yn;
+                                       }
+                               }
+                       }
+
+                       PluginStateSorter cmp (order);
+                       favorite_order.sort (cmp);
+                       sync_treeview_from_favorite_order ();
+               }
        }
+
        return 0;
 }
 
-XMLNode&
-Mixer_UI::get_state ()
+void
+Mixer_UI::save_plugin_order_file ()
 {
-       XMLNode* node = new XMLNode (X_("Mixer"));
-       char buf[128];
-       LocaleGuard lg;
-
-       node->add_child_nocopy (Tabbable::get_state());
+       //this writes the plugin order to the user's preference file ( plugin_metadata/plugin_order )
 
-       snprintf(buf,sizeof(buf), "%f", rhs_pane1.get_divider());
-       node->add_property(X_("mixer-rhs-pane1-pos"), string(buf));
-       snprintf(buf,sizeof(buf), "%f", rhs_pane2.get_divider());
-       node->add_property(X_("mixer-rhs_pane2-pos"), string(buf));
-       snprintf(buf,sizeof(buf), "%f", list_hpane.get_divider());
-       node->add_property(X_("mixer-list-hpane-pos"), string(buf));
-       snprintf(buf,sizeof(buf), "%f", inner_pane.get_divider());
-       node->add_property(X_("mixer-inner-pane-pos"), string(buf));
-
-       node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
-       node->add_property ("show-mixer", _visible ? "yes" : "no");
-       node->add_property ("show-mixer-list", _show_mixer_list ? "yes" : "no");
-       node->add_property ("maximised", _maximised ? "yes" : "no");
+       //NOTE:  this replaces the old code that stores info in instant.xml
+       //why?  because instant.xml prefers the per-session settings, and we want this to be a global pref
 
        store_current_favorite_order ();
-       XMLNode* plugin_order = new XMLNode ("PluginOrder");
-       int cnt = 0;
+       XMLNode plugin_order ("PluginOrder");
+       uint32_t cnt = 0;
        for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i, ++cnt) {
                XMLNode* p = new XMLNode ("PluginInfo");
-               p->add_property ("sort", cnt);
-               p->add_property ("unique-id", (*i)->unique_id);
+               p->set_property ("sort", cnt);
+               p->set_property ("unique-id", (*i)->unique_id);
                if (favorite_ui_state.find ((*i)->unique_id) != favorite_ui_state.end ()) {
-                       p->add_property ("expanded", favorite_ui_state[(*i)->unique_id]);
+                       p->set_property ("expanded", favorite_ui_state[(*i)->unique_id]);
                }
-               plugin_order->add_child_nocopy (*p);
+               plugin_order.add_child_nocopy (*p);
        }
-       node->add_child_nocopy (*plugin_order);
+       PluginManager::instance().save_plugin_order_file( plugin_order );
+}
+
+XMLNode&
+Mixer_UI::get_state ()
+{
+       XMLNode* node = new XMLNode (X_("Mixer"));
+
+       node->add_child_nocopy (Tabbable::get_state());
+
+       node->set_property (X_("mixer-rhs-pane1-pos"), rhs_pane1.get_divider());
+       node->set_property (X_("mixer-rhs_pane2-pos"), rhs_pane2.get_divider());
+       node->set_property (X_("mixer-list-hpane-pos"), list_hpane.get_divider());
+       node->set_property (X_("mixer-inner-pane-pos"),  inner_pane.get_divider());
+
+       node->set_property ("narrow-strips", (_strip_width == Narrow));
+       node->set_property ("show-mixer", _visible);
+       node->set_property ("maximised", _maximised);
+
+       Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleMixerList");
+       node->set_property ("show-mixer-list", act->get_active ());
+
+       act = ActionManager::get_toggle_action ("Mixer", "ToggleMonitorSection");
+       node->set_property ("monitor-section-visible", act->get_active ());
+
+       act = ActionManager::get_toggle_action ("Mixer", "ToggleVCAPane");
+       node->set_property ("show-vca-pane", act->get_active ());
+
+#ifdef MIXBUS
+       act = ActionManager::get_toggle_action ("Mixer", "ToggleMixbusPane");
+       node->set_property ("show-mixbus-pane", act->get_active ());
+#endif
 
        return *node;
 }
@@ -2091,6 +2352,14 @@ Mixer_UI::scroll_left ()
        using namespace Gtk::Box_Helpers;
        const BoxList& strips = strip_packer.children();
        for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
+               if (i->get_widget() == & add_button) {
+                       continue;
+               }
+#ifdef MIXBUS
+               if (i->get_widget() == &mb_shadow) {
+                       continue;
+               }
+#endif
                lm += i->get_widget()->get_width ();
                if (lm >= lp) {
                        lm -= i->get_widget()->get_width ();
@@ -2115,6 +2384,14 @@ Mixer_UI::scroll_right ()
        using namespace Gtk::Box_Helpers;
        const BoxList& strips = strip_packer.children();
        for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
+               if (i->get_widget() == & add_button) {
+                       continue;
+               }
+#ifdef MIXBUS
+               if (i->get_widget() == &mb_shadow) {
+                       continue;
+               }
+#endif
                lm += i->get_widget()->get_width ();
                if (lm > lp + 1) {
                        break;
@@ -2168,10 +2445,6 @@ Mixer_UI::parameter_changed (string const & p)
                for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
                        (*i)->set_width_enum (s ? Narrow : Wide, this);
                }
-       } else if (p == "use-monitor-bus") {
-               if (_session && !_session->monitor_out()) {
-                       monitor_section_detached ();
-               }
        }
 }
 
@@ -2227,16 +2500,6 @@ Mixer_UI::setup_track_display ()
        v->show ();
        v->pack_start (track_display_scroller, true, true);
 
-       Button* b = manage (new Button);
-       b->show ();
-       Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
-       w->show ();
-       b->add (*w);
-
-       b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
-
-       v->pack_start (*b, false, false);
-
        track_display_frame.set_name("BaseFrame");
        track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
        track_display_frame.add (*v);
@@ -2319,13 +2582,27 @@ Mixer_UI::set_axis_targets_for_operation ()
 void
 Mixer_UI::monitor_section_going_away ()
 {
-       if (_monitor_section) {
-               monitor_section_detached ();
-               out_packer.remove (_monitor_section->tearoff());
-               _monitor_section->set_session (0);
-               delete _monitor_section;
-               _monitor_section = 0;
+       XMLNode* ui_node = Config->extra_xml(X_("UI"));
+
+       /* immediate state save.
+        *
+        * Tearoff settings are otherwise only stored during
+        * save_ardour_state(). The mon-section may or may not
+        * exist at that point.
+        */
+
+       if (ui_node) {
+               XMLNode* tearoff_node = ui_node->child (X_("Tearoffs"));
+               if (tearoff_node) {
+                       tearoff_node->remove_nodes_and_delete (X_("monitor-section"));
+                       XMLNode* t = new XMLNode (X_("monitor-section"));
+                       _monitor_section.tearoff().add_state (*t);
+                       tearoff_node->add_child_nocopy (*t);
+               }
        }
+
+       monitor_section_detached ();
+       out_packer.remove (_monitor_section.tearoff());
 }
 
 void
@@ -2381,16 +2658,15 @@ Mixer_UI::restore_mixer_space ()
 void
 Mixer_UI::monitor_section_attached ()
 {
-       Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
-       Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
+       Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleMonitorSection");
        act->set_sensitive (true);
-       tact->set_active ();
+       showhide_monitor_section (act->get_active ());
 }
 
 void
 Mixer_UI::monitor_section_detached ()
 {
-       Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
+       Glib::RefPtr<Action> act = ActionManager::get_action ("Mixer", "ToggleMonitorSection");
        act->set_sensitive (false);
 }
 
@@ -2424,9 +2700,24 @@ Mixer_UI::refiller (PluginInfoList& result, const PluginInfoList& plugs)
 {
        PluginManager& manager (PluginManager::instance());
        for (PluginInfoList::const_iterator i = plugs.begin(); i != plugs.end(); ++i) {
+
+               /* not a Favorite? skip it */
                if (manager.get_status (*i) != PluginManager::Favorite) {
                        continue;
                }
+
+               /* Check the tag combo selection, and skip this plugin if it doesn't match the selected tag(s) */
+               string test = favorite_plugins_tag_combo.get_active_text();
+               if (test != _("Show All")) {
+                       vector<string> tags = manager.get_tags(*i);
+
+                       //does the selected tag match any of the tags in the plugin?
+                       vector<string>::iterator tt =  find (tags.begin(), tags.end(), test);
+                       if (tt == tags.end()) {
+                               continue;
+                       }
+               }
+
                result.push_back (*i);
        }
 }
@@ -2470,6 +2761,9 @@ Mixer_UI::refill_favorite_plugins ()
 #ifdef LXVST_SUPPORT
        refiller (plugs, mgr.lxvst_plugin_info ());
 #endif
+#ifdef MACVST_SUPPORT
+       refiller (plugs, mgr.mac_vst_plugin_info ());
+#endif
 #ifdef AUDIOUNIT_SUPPORT
        refiller (plugs, mgr.au_plugin_info ());
 #endif
@@ -2486,6 +2780,30 @@ Mixer_UI::refill_favorite_plugins ()
        sync_treeview_from_favorite_order ();
 }
 
+void
+Mixer_UI::plugin_list_changed ()
+{
+       refill_favorite_plugins();
+       refill_tag_combo();
+}
+
+void
+Mixer_UI::refill_tag_combo ()
+{
+       PluginManager& mgr (PluginManager::instance());
+
+       std::vector<std::string> tags = mgr.get_all_tags (PluginManager::OnlyFavorites);
+
+       favorite_plugins_tag_combo.clear();
+       favorite_plugins_tag_combo.append_text (_("Show All"));
+
+       for (vector<string>::iterator t = tags.begin (); t != tags.end (); ++t) {
+               favorite_plugins_tag_combo.append_text (*t);
+       }
+
+       favorite_plugins_tag_combo.set_active_text (_("Show All"));
+}
+
 void
 Mixer_UI::sync_treeview_favorite_ui_state (const TreeModel::Path& path, const TreeModel::iterator&)
 {
@@ -2572,7 +2890,7 @@ Mixer_UI::popup_note_context_menu (GdkEventButton *ev)
 bool
 Mixer_UI::plugin_row_button_press (GdkEventButton *ev)
 {
-       if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 3) ) {
+       if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 3)) {
                TreeModel::Path path;
                TreeViewColumn* column;
                int cellx, celly;
@@ -2776,13 +3094,13 @@ Mixer_UI::do_vca_unassign (boost::shared_ptr<VCA> vca)
 }
 
 void
-Mixer_UI::show_vca_slaves (boost::shared_ptr<VCA> vca)
+Mixer_UI::show_spill (boost::shared_ptr<Stripable> s)
 {
-       boost::shared_ptr<VCA> v = spilled_vca.lock();
-       if (v != vca) {
-               spilled_vca = vca;
-               show_vca_change (vca); /* EMIT SIGNAL */
-               if (vca) {
+       boost::shared_ptr<Stripable> ss = spilled_strip.lock();
+       if (ss != s) {
+               spilled_strip = s;
+               show_spill_change (s); /* EMIT SIGNAL */
+               if (s) {
                        _group_tabs->hide ();
                } else {
                        _group_tabs->show ();
@@ -2792,44 +3110,57 @@ Mixer_UI::show_vca_slaves (boost::shared_ptr<VCA> vca)
 }
 
 bool
-Mixer_UI::showing_vca_slaves_for (boost::shared_ptr<VCA> vca) const
+Mixer_UI::showing_spill_for (boost::shared_ptr<Stripable> s) const
 {
-       return vca == spilled_vca.lock();
+       return s == spilled_strip.lock();
 }
 
 void
 Mixer_UI::register_actions ()
 {
-       Glib::RefPtr<ActionGroup> group = myactions.create_action_group (X_("Mixer"));
+       Glib::RefPtr<ActionGroup> group = ActionManager::create_action_group (bindings, X_("Mixer"));
 
-       myactions.register_action (group, "solo", _("Toggle Solo on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::solo_action));
-       myactions.register_action (group, "mute", _("Toggle Mute on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::mute_action));
-       myactions.register_action (group, "recenable", _("Toggle Rec-enable on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::rec_enable_action));
-       myactions.register_action (group, "increment-gain", _("Decrease Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_up_action));
-       myactions.register_action (group, "decrement-gain", _("Increase Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_down_action));
-       myactions.register_action (group, "unity-gain", _("Set Gain to 0dB on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::unity_gain_action));
+       ActionManager::register_action (group, "solo", _("Toggle Solo on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::solo_action));
+       ActionManager::register_action (group, "mute", _("Toggle Mute on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::mute_action));
+       ActionManager::register_action (group, "recenable", _("Toggle Rec-enable on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::rec_enable_action));
+       ActionManager::register_action (group, "increment-gain", _("Decrease Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_up_action));
+       ActionManager::register_action (group, "decrement-gain", _("Increase Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_down_action));
+       ActionManager::register_action (group, "unity-gain", _("Set Gain to 0dB on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::unity_gain_action));
 
 
-       myactions.register_action (group, "copy-processors", _("Copy Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::copy_processors));
-       myactions.register_action (group, "cut-processors", _("Cut Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::cut_processors));
-       myactions.register_action (group, "paste-processors", _("Paste Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::paste_processors));
-       myactions.register_action (group, "delete-processors", _("Delete Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::delete_processors));
-       myactions.register_action (group, "select-all-processors", _("Select All (visible) Processors"), sigc::mem_fun (*this, &Mixer_UI::select_all_processors));
-       myactions.register_action (group, "toggle-processors", _("Toggle Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::toggle_processors));
-       myactions.register_action (group, "ab-plugins", _("Toggle Selected Plugins"), sigc::mem_fun (*this, &Mixer_UI::ab_plugins));
-       myactions.register_action (group, "select-none", _("Deselect all strips and processors"), sigc::mem_fun (*this, &Mixer_UI::select_none));
+       ActionManager::register_action (group, "copy-processors", _("Copy Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::copy_processors));
+       ActionManager::register_action (group, "cut-processors", _("Cut Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::cut_processors));
+       ActionManager::register_action (group, "paste-processors", _("Paste Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::paste_processors));
+       ActionManager::register_action (group, "delete-processors", _("Delete Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::delete_processors));
+       ActionManager::register_action (group, "select-all-processors", _("Select All (visible) Processors"), sigc::mem_fun (*this, &Mixer_UI::select_all_processors));
+       ActionManager::register_action (group, "toggle-processors", _("Toggle Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::toggle_processors));
+       ActionManager::register_action (group, "ab-plugins", _("Toggle Selected Plugins"), sigc::mem_fun (*this, &Mixer_UI::ab_plugins));
+       ActionManager::register_action (group, "select-none", _("Deselect all strips and processors"), sigc::mem_fun (*this, &Mixer_UI::select_none));
 
-       myactions.register_action (group, "scroll-left", _("Scroll Mixer Window to the left"), sigc::mem_fun (*this, &Mixer_UI::scroll_left));
-       myactions.register_action (group, "scroll-right", _("Scroll Mixer Window to the right"), sigc::mem_fun (*this, &Mixer_UI::scroll_right));
+       ActionManager::register_action (group, "select-next-stripable", _("Select Next Mixer Strip"), sigc::mem_fun (*this, &Mixer_UI::select_next_strip));
+       ActionManager::register_action (group, "select-prev-stripable", _("Scroll Previous Mixer Strip"), sigc::mem_fun (*this, &Mixer_UI::select_prev_strip));
 
-       myactions.register_action (group, "toggle-midi-input-active", _("Toggle MIDI Input Active for Mixer-Selected Tracks/Busses"),
+       ActionManager::register_action (group, "scroll-left", _("Scroll Mixer Window to the left"), sigc::mem_fun (*this, &Mixer_UI::scroll_left));
+       ActionManager::register_action (group, "scroll-right", _("Scroll Mixer Window to the right"), sigc::mem_fun (*this, &Mixer_UI::scroll_right));
+
+       ActionManager::register_action (group, "toggle-midi-input-active", _("Toggle MIDI Input Active for Mixer-Selected Tracks/Busses"),
                                   sigc::bind (sigc::mem_fun (*this, &Mixer_UI::toggle_midi_input_active), false));
+
+       ActionManager::register_toggle_action (group, X_("ToggleMixerList"), _("Mixer: Show Mixer List"), sigc::mem_fun (*this, &Mixer_UI::toggle_mixer_list));
+
+       ActionManager::register_toggle_action (group, X_("ToggleVCAPane"), _("Mixer: Show VCAs"), sigc::mem_fun (*this, &Mixer_UI::toggle_vcas));
+
+#ifdef MIXBUS
+       ActionManager::register_toggle_action (group, X_("ToggleMixbusPane"), _("Mixer: Show Mixbuses"), sigc::mem_fun (*this, &Mixer_UI::toggle_mixbuses));
+#endif
+
+       ActionManager::register_toggle_action (group, X_("ToggleMonitorSection"), _("Mixer: Show Monitor Section"), sigc::mem_fun (*this, &Mixer_UI::toggle_monitor_section));
 }
 
 void
 Mixer_UI::load_bindings ()
 {
-       bindings = Bindings::get_bindings (X_("Mixer"), myactions);
+       bindings = Bindings::get_bindings (X_("Mixer"));
 }
 
 template<class T> void
@@ -2877,29 +3208,44 @@ Mixer_UI::rec_enable_action ()
        control_action (&Stripable::rec_enable_control);
 }
 
-void
-Mixer_UI::step_gain_up_action ()
+AutomationControlSet
+Mixer_UI::selected_gaincontrols ()
 {
        set_axis_targets_for_operation ();
-
+       AutomationControlSet rv;
        BOOST_FOREACH(AxisView* r, _axis_targets) {
                MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
                if (ms) {
-                       ms->step_gain_up ();
+                       boost::shared_ptr<GainControl> ac (ms->route()->gain_control());
+                       ControlList cl (ac->grouped_controls());
+                       for (ControlList::const_iterator c = cl.begin(); c != cl.end (); ++c) {
+                               rv.insert (*c);
+                       }
+                       rv.insert (ac);
                }
        }
+       return rv;
 }
 
 void
-Mixer_UI::step_gain_down_action ()
+Mixer_UI::step_gain_up_action ()
 {
-       set_axis_targets_for_operation ();
+       AutomationControlSet acs = selected_gaincontrols ();
+       for (AutomationControlSet::const_iterator i = acs.begin(); i != acs.end (); ++i) {
+               boost::shared_ptr<GainControl> ac = boost::dynamic_pointer_cast<GainControl> (*i);
+               assert (ac);
+               ac->set_value (dB_to_coefficient (accurate_coefficient_to_dB (ac->get_value()) + 0.1), Controllable::NoGroup);
+       }
+}
 
-       BOOST_FOREACH(AxisView* r, _axis_targets) {
-               MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
-               if (ms) {
-                       ms->step_gain_down ();
-               }
+void
+Mixer_UI::step_gain_down_action ()
+{
+       AutomationControlSet acs = selected_gaincontrols ();
+       for (AutomationControlSet::const_iterator i = acs.begin(); i != acs.end (); ++i) {
+               boost::shared_ptr<GainControl> ac = boost::dynamic_pointer_cast<GainControl> (*i);
+               assert (ac);
+               ac->set_value (dB_to_coefficient (accurate_coefficient_to_dB (ac->get_value()) - 0.1), Controllable::NoGroup);
        }
 }
 
@@ -2996,26 +3342,22 @@ void
 Mixer_UI::vca_assign (boost::shared_ptr<VCA> vca)
 {
        set_axis_targets_for_operation ();
-#if 0
        BOOST_FOREACH(AxisView* r, _axis_targets) {
                MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
                if (ms) {
                        ms->vca_assign (vca);
                }
        }
-#endif
 }
 
 void
 Mixer_UI::vca_unassign (boost::shared_ptr<VCA> vca)
 {
        set_axis_targets_for_operation ();
-#if 0
        BOOST_FOREACH(AxisView* r, _axis_targets) {
                MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
                if (ms) {
                        ms->vca_unassign (vca);
                }
        }
-#endif
 }