Allow drags of automation in time ranges where the automation is on a MIDI track...
[ardour.git] / gtk2_ardour / editor.cc
index 23a9a787a49fab551ecdf22e3c43757d8f659b5d..58f66fcd8a69870fe6107edd4984ce8655537dfd 100644 (file)
 #include "editor_locations.h"
 #include "editor_snapshots.h"
 #include "editor_summary.h"
+#include "region_layering_order_editor.h"
 
 #include "i18n.h"
 
@@ -148,6 +149,7 @@ static const gchar *_snap_type_strings[] = {
        N_("Beats/32"),
        N_("Beats/28"),
        N_("Beats/24"),
+       N_("Beats/20"),
        N_("Beats/16"),
        N_("Beats/14"),
        N_("Beats/12"),
@@ -201,6 +203,7 @@ static const gchar *_rb_opt_strings[] = {
        N_("Unpitched percussion with stable notes"),
        N_("Crisp monophonic instrumental"),
        N_("Unpitched solo percussion"),
+       N_("Resample without preserving pitch"),
        0
 };
 #endif
@@ -228,6 +231,7 @@ Gdk::Cursor* Editor::midi_erase_cursor = 0;
 Gdk::Cursor* Editor::wait_cursor = 0;
 Gdk::Cursor* Editor::timebar_cursor = 0;
 Gdk::Cursor* Editor::transparent_cursor = 0;
+Gdk::Cursor* Editor::up_down_cursor = 0;
 
 void
 show_me_the_size (Requisition* r, const char* what)
@@ -299,7 +303,7 @@ Editor::Editor ()
        , meters_running(false)
        , _pending_locate_request (false)
        , _pending_initial_locate (false)
-
+       , _last_cut_copy_source_track (0)
 {
        constructed = false;
 
@@ -329,6 +333,7 @@ Editor::Editor ()
        edit_point_strings = I18N (_edit_point_strings);
 #ifdef USE_RUBBERBAND
        rb_opt_strings = I18N (_rb_opt_strings);
+       rb_current_opt = 4;
 #endif
 
        snap_threshold = 5.0;
@@ -348,7 +353,6 @@ Editor::Editor ()
        show_gain_after_trim = false;
        verbose_cursor_on = true;
        last_item_entered = 0;
-       last_item_entered_n = 0;
 
        have_pending_keyboard_selection = false;
        _follow_playhead = true;
@@ -381,10 +385,8 @@ Editor::Editor ()
        _dragging_edit_point = false;
        select_new_marker = false;
        rhythm_ferret = 0;
+        layering_order_editor = 0;
        _bundle_manager = 0;
-       for (ARDOUR::DataType::iterator i = ARDOUR::DataType::begin(); i != ARDOUR::DataType::end(); ++i) {
-               _global_port_matrix[*i] = 0;
-       }
        no_save_visual = false;
        resize_idle_id = -1;
 
@@ -665,9 +667,6 @@ Editor::Editor ()
        set_mouse_mode (MouseObject, true);
        set_edit_point_preference (EditAtMouse, true);
 
-       XMLNode* node = ARDOUR_UI::instance()->editor_settings();
-       set_state (*node, Stateful::loading_state_version);
-
        _playlist_selector = new PlaylistSelector();
        _playlist_selector->signal_delete_event().connect (sigc::bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
 
@@ -708,7 +707,7 @@ Editor::Editor ()
        WindowTitle title(Glib::get_application_name());
        title += _("Editor");
        set_title (title.get_string());
-       set_wmclass (X_("ardour_editor"), "Ardour");
+       set_wmclass (X_("ardour_editor"), PROGRAM_NAME);
 
        add (vpacker);
        add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
@@ -751,7 +750,7 @@ Editor::~Editor()
                image_socket_listener = 0 ;
        }
 #endif
-
+        
        delete _routes;
        delete _route_groups;
        delete track_canvas;
@@ -797,7 +796,7 @@ Editor::set_entered_regionview (RegionView* rv)
        }
 
        if ((entered_regionview = rv) != 0) {
-               entered_regionview->entered ();
+               entered_regionview->entered (internal_editing ());
        }
 }
 
@@ -837,8 +836,6 @@ Editor::show_window ()
                        tv = (static_cast<TimeAxisView*>(*i));
                        tv->reset_height ();
                }
-
-               reset_zoom (frames_per_unit);
        }
 
        present ();
@@ -1096,6 +1093,7 @@ Editor::set_session (Session *t)
           but use Gtkmm2ext::UI::instance()->call_slot();
        */
 
+        _session->StepEditStatusChange.connect (_session_connections, invalidator (*this), ui_bind(&Editor::step_edit_status_change, this, _1), gui_context());
        _session->TransportStateChange.connect (_session_connections, invalidator (*this), boost::bind (&Editor::map_transport_state, this), gui_context());
        _session->PositionChanged.connect (_session_connections, invalidator (*this), ui_bind (&Editor::map_position_change, this, _1), gui_context());
        _session->RouteAdded.connect (_session_connections, invalidator (*this), ui_bind (&Editor::handle_new_route, this, _1), gui_context());
@@ -1128,7 +1126,7 @@ Editor::set_session (Session *t)
 
        Location* loc = _session->locations()->auto_loop_location();
        if (loc == 0) {
-               loc = new Location (0, _session->current_end_frame(), _("Loop"),(Location::Flags) (Location::IsAutoLoop | Location::IsHidden));
+               loc = new Location (*_session, 0, _session->current_end_frame(), _("Loop"),(Location::Flags) (Location::IsAutoLoop | Location::IsHidden));
                if (loc->start() == loc->end()) {
                        loc->set_end (loc->start() + 1);
                }
@@ -1141,7 +1139,7 @@ Editor::set_session (Session *t)
 
        loc = _session->locations()->auto_punch_location();
        if (loc == 0) {
-               loc = new Location (0, _session->current_end_frame(), _("Punch"), (Location::Flags) (Location::IsAutoPunch | Location::IsHidden));
+               loc = new Location (*_session, 0, _session->current_end_frame(), _("Punch"), (Location::Flags) (Location::IsAutoPunch | Location::IsHidden));
                if (loc->start() == loc->end()) {
                        loc->set_end (loc->start() + 1);
                }
@@ -1281,6 +1279,7 @@ Editor::build_cursors ()
        midi_select_cursor = new Gdk::Cursor (CENTER_PTR);
        midi_resize_cursor = new Gdk::Cursor (SIZING);
        midi_erase_cursor = new Gdk::Cursor (DRAPED_BOX);
+       up_down_cursor = new Gdk::Cursor (Gdk::SB_V_DOUBLE_ARROW);
 }
 
 /** Pop up a context menu for when the user clicks on a fade in or fade out */
@@ -1507,6 +1506,12 @@ Editor::build_track_region_context_menu (nframes64_t frame)
        MenuList& edit_items  = track_region_context_menu.items();
        edit_items.clear();
 
+       /* we've just cleared the track region context menu, so the menu that these
+          two items were on will have disappeared; stop them dangling.
+       */
+       region_edit_menu_split_item = 0;
+       region_edit_menu_split_multichannel_item = 0;
+
        RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (clicked_axisview);
 
        if (rtv) {
@@ -1517,21 +1522,26 @@ Editor::build_track_region_context_menu (nframes64_t frame)
                   mode and so offering region context is somewhat confusing.
                */
                if ((tr = rtv->track()) && ((pl = tr->playlist())) && !internal_editing()) {
-                       Playlist::RegionList* regions = pl->regions_at ((nframes64_t) floor ( (double)frame * tr->speed()));
+                        framepos_t framepos = (framepos_t) floor ((double)frame * tr->speed());
+                        uint32_t regions_at = pl->count_regions_at (framepos);
+                        list<boost::shared_ptr<Region> > regions_for_menu;
 
                        if (selection->regions.size() > 1) {
                                // there's already a multiple selection: just add a
                                // single region context menu that will act on all
                                // selected regions
-                               boost::shared_ptr<Region> dummy_region; // = NULL
-                               add_region_context_items (rtv->view(), dummy_region, edit_items);
-                       } else {
-                               for (Playlist::RegionList::reverse_iterator i = regions->rbegin(); i != regions->rend(); ++i) {
-                                       add_region_context_items (rtv->view(), (*i), edit_items);
-                               }
-                       }
 
-                       delete regions;
+                               for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
+                                       regions_for_menu.push_back ((*i)->region ());
+                               }
+                        } else {
+                                boost::shared_ptr<Region> top_region = pl->top_region_at (framepos);
+                                if (top_region) {
+                                        regions_for_menu.push_back (top_region);
+                                }
+                        }
+
+                        add_region_context_items (rtv->view(), regions_for_menu, edit_items, framepos, regions_at > 1);
                }
        }
 
@@ -1556,7 +1566,6 @@ Editor::build_track_crossfade_context_menu (nframes64_t frame)
 
                if ((tr = atv->track()) && ((pl = tr->playlist()) != 0) && ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) != 0)) {
 
-                       Playlist::RegionList* regions = pl->regions_at (frame);
                        AudioPlaylist::Crossfades xfades;
 
                        apl->crossfades_at (frame, xfades);
@@ -1567,18 +1576,26 @@ Editor::build_track_crossfade_context_menu (nframes64_t frame)
                                add_crossfade_context_items (atv->audio_view(), (*i), edit_items, many);
                        }
 
+                       framepos_t framepos = (framepos_t) floor ((double)frame * tr->speed());
+                       uint32_t regions_at = pl->count_regions_at (framepos);
+                        list<boost::shared_ptr<Region> > regions_for_menu;
+
                        if (selection->regions.size() > 1) {
-                               // there's already a multiple selection: just add a
-                               // single region context menu that will act on all
-                               // selected regions
-                               boost::shared_ptr<Region> dummy_region; // = NULL
-                               add_region_context_items (atv->audio_view(), dummy_region, edit_items);
-                       } else {
-                               for (Playlist::RegionList::reverse_iterator i = regions->rbegin(); i != regions->rend(); ++i) {
-                                       add_region_context_items (atv->audio_view(), (*i), edit_items);
+                               // there's already a multiple selection: just add a
+                               // single region context menu that will act on all
+                               // selected regions
+
+                               for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
+                                       regions_for_menu.push_back ((*i)->region ());
                                }
-                       }
-                       delete regions;
+                        } else {
+                                boost::shared_ptr<Region> top_region = pl->top_region_at (framepos);
+                                if (top_region) {
+                                        regions_for_menu.push_back (top_region);
+                                }
+                        }
+                        
+                        add_region_context_items (atv->audio_view(), regions_for_menu, edit_items, framepos, regions_at > 1);
                }
        }
 
@@ -1698,7 +1715,8 @@ Editor::xfade_edit_right_region ()
 }
 
 void
-Editor::add_region_context_items (StreamView* sv, boost::shared_ptr<Region> region, Menu_Helpers::MenuList& edit_items)
+Editor::add_region_context_items (StreamView* sv, list<boost::shared_ptr<Region> > regions, Menu_Helpers::MenuList& edit_items,
+                                  framepos_t position, bool multiple_regions_at_position)
 {
        using namespace Menu_Helpers;
        Gtk::MenuItem* foo_item;
@@ -1706,24 +1724,100 @@ Editor::add_region_context_items (StreamView* sv, boost::shared_ptr<Region> regi
        MenuList& items       = region_menu->items();
        region_menu->set_name ("ArdourContextMenu");
 
-       boost::shared_ptr<AudioRegion> ar;
-       boost::shared_ptr<MidiRegion>  mr;
+       /* Look through the regions that we are handling and make notes about what we have got */
+       
+       bool have_audio = false;
+       bool have_midi = false;
+       bool have_locked = false;
+       bool have_unlocked = false;
+       bool have_position_lock_style_audio = false;
+       bool have_position_lock_style_music = false;
+       bool have_muted = false;
+       bool have_unmuted = false;
+       bool have_opaque = false;
+       bool have_non_opaque = false;
+       bool have_not_at_natural_position = false;
+       bool have_envelope_visible = false;
+       bool have_envelope_invisible = false;
+       bool have_envelope_active = false;
+       bool have_envelope_inactive = false;
+       bool have_non_unity_scale_amplitude = false;
+
+       for (list<boost::shared_ptr<Region> >::const_iterator i = regions.begin(); i != regions.end(); ++i) {
+               boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (*i);
+               if (ar) {
+                       have_audio = true;
+               }
+               if (boost::dynamic_pointer_cast<MidiRegion> (*i)) {
+                       have_midi = true;
+               }
+
+               if ((*i)->locked()) {
+                       have_locked = true;
+               } else {
+                       have_unlocked = true;
+               }
+
+               if ((*i)->position_lock_style() == MusicTime) {
+                       have_position_lock_style_music = true;
+               } else {
+                       have_position_lock_style_audio = true;
+               }
+
+               if ((*i)->muted()) {
+                       have_muted = true;
+               } else {
+                       have_unmuted = true;
+               }
+
+               if ((*i)->opaque()) {
+                       have_opaque = true;
+               } else {
+                       have_non_opaque = true;
+               }
+
+               if (!(*i)->at_natural_position()) {
+                       have_not_at_natural_position = true;
+               }
+
+               if (ar) {
+                       RegionView* rv = sv->find_view (ar);
+                       AudioRegionView* arv = dynamic_cast<AudioRegionView*> (rv);
+                       
+                       if (rv && arv && arv->envelope_visible()) {
+                               have_envelope_visible = true;
+                       } else {
+                               have_envelope_invisible = true;
+                       }
+
+                       if (ar->envelope_active()) {
+                               have_envelope_active = true;
+                       } else {
+                               have_envelope_inactive = true;
+                       }
+
+                       if (ar->scale_amplitude() != 1) {
+                               have_non_unity_scale_amplitude = true;
+                       }
+               }
+       }
 
-       if (region) {
-               ar = boost::dynamic_pointer_cast<AudioRegion> (region);
-               mr = boost::dynamic_pointer_cast<MidiRegion> (region);
+       if (regions.size() == 1) {
 
                /* when this particular menu pops up, make the relevant region
                   become selected.
                */
 
                region_menu->signal_map_event().connect (
-                       sigc::bind (sigc::mem_fun(*this, &Editor::set_selected_regionview_from_map_event), sv, boost::weak_ptr<Region>(region)));
+                       sigc::bind (sigc::mem_fun(*this, &Editor::set_selected_regionview_from_map_event), sv, boost::weak_ptr<Region> (regions.front()))
+                       );
 
                items.push_back (MenuElem (_("Rename..."), sigc::mem_fun(*this, &Editor::rename_region)));
-               if (mr) {
+               
+               if (have_midi) {
                        items.push_back (MenuElem (_("List Editor..."), sigc::mem_fun(*this, &Editor::show_midi_list_editor)));
                }
+               
                items.push_back (MenuElem (_("Region Properties..."), sigc::mem_fun(*this, &Editor::edit_region)));
        }
 
@@ -1741,107 +1835,96 @@ Editor::add_region_context_items (StreamView* sv, boost::shared_ptr<Region> regi
        items.push_back (MenuElem (_("Export..."), sigc::mem_fun(*this, &Editor::export_region)));
        items.push_back (MenuElem (_("Bounce"), sigc::mem_fun(*this, &Editor::bounce_region_selection)));
 
-       if (ar) {
+       if (have_audio) {
                items.push_back (MenuElem (_("Spectral Analysis..."), sigc::mem_fun(*this, &Editor::analyze_region_selection)));
        }
 
        items.push_back (SeparatorElem());
 
-       sigc::connection fooc;
-       boost::shared_ptr<Region> region_to_check;
-
-       if (region) {
-               region_to_check = region;
-       } else {
-               region_to_check = selection->regions.front()->region();
-       }
-
        items.push_back (CheckMenuElem (_("Lock")));
        CheckMenuItem* region_lock_item = static_cast<CheckMenuItem*>(&items.back());
-       if (region_to_check->locked()) {
+       if (have_locked && !have_unlocked) {
                region_lock_item->set_active();
+       } else if (have_locked && have_unlocked) {
+               region_lock_item->set_inconsistent ();
        }
        region_lock_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_region_lock));
 
        items.push_back (CheckMenuElem (_("Glue to Bars and Beats")));
        CheckMenuItem* bbt_glue_item = static_cast<CheckMenuItem*>(&items.back());
 
-       switch (region_to_check->position_lock_style()) {
-       case MusicTime:
-               bbt_glue_item->set_active (true);
-               break;
-       default:
-               bbt_glue_item->set_active (false);
-               break;
+       if (have_position_lock_style_music && !have_position_lock_style_audio) {
+               bbt_glue_item->set_active ();
+       } else if (have_position_lock_style_music && have_position_lock_style_audio) {
+               bbt_glue_item->set_inconsistent ();
        }
 
        bbt_glue_item->signal_activate().connect (sigc::mem_fun (*this, &Editor::toggle_region_lock_style));
 
        items.push_back (CheckMenuElem (_("Mute")));
        CheckMenuItem* region_mute_item = static_cast<CheckMenuItem*>(&items.back());
-       fooc = region_mute_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_region_mute));
-       if (region_to_check->muted()) {
-               fooc.block (true);
+
+       if (have_muted && !have_unmuted) {
                region_mute_item->set_active();
-               fooc.block (false);
+       } else if (have_muted && have_unmuted) {
+               region_mute_item->set_inconsistent ();
        }
         
+       region_mute_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_region_mute));
+       
         items.push_back (MenuElem (_("Transpose..."), mem_fun(*this, &Editor::pitch_shift_regions)));
 
        if (!Profile->get_sae()) {
                items.push_back (CheckMenuElem (_("Opaque")));
                CheckMenuItem* region_opaque_item = static_cast<CheckMenuItem*>(&items.back());
-               fooc = region_opaque_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_region_opaque));
-               if (region_to_check->opaque()) {
-                       fooc.block (true);
+               if (have_opaque && !have_non_opaque) {
                        region_opaque_item->set_active();
-                       fooc.block (false);
+               } else if (have_opaque && have_non_opaque) {
+                       region_opaque_item->set_inconsistent ();
                }
+               region_opaque_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_region_opaque));
        }
 
        items.push_back (CheckMenuElem (_("Original Position"), sigc::mem_fun(*this, &Editor::naturalize)));
-       if (region_to_check->at_natural_position()) {
+       if (!have_not_at_natural_position) {
                items.back().set_sensitive (false);
        }
 
        items.push_back (SeparatorElem());
 
-       if (ar) {
-
-               RegionView* rv = sv->find_view (ar);
-               AudioRegionView* arv = dynamic_cast<AudioRegionView*>(rv);
+       if (have_audio) {
 
                if (!Profile->get_sae()) {
                        items.push_back (MenuElem (_("Reset Envelope"), sigc::mem_fun(*this, &Editor::reset_region_gain_envelopes)));
 
                        items.push_back (CheckMenuElem (_("Envelope Visible")));
                        CheckMenuItem* region_envelope_visible_item = static_cast<CheckMenuItem*> (&items.back());
-                       fooc = region_envelope_visible_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_gain_envelope_visibility));
-                       if (arv->envelope_visible()) {
-                               fooc.block (true);
-                               region_envelope_visible_item->set_active (true);
-                               fooc.block (false);
+                       if (have_envelope_visible && !have_envelope_invisible) {
+                               region_envelope_visible_item->set_active ();
+                       } else if (have_envelope_visible && have_envelope_invisible) {
+                               region_envelope_visible_item->set_inconsistent ();
                        }
+                       region_envelope_visible_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_gain_envelope_visibility));
 
                        items.push_back (CheckMenuElem (_("Envelope Active")));
                        CheckMenuItem* region_envelope_active_item = static_cast<CheckMenuItem*> (&items.back());
-                       fooc = region_envelope_active_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_gain_envelope_active));
 
-                       if (ar->envelope_active()) {
-                               fooc.block (true);
-                               region_envelope_active_item->set_active (true);
-                               fooc.block (false);
+                       if (have_envelope_active && !have_envelope_inactive) {
+                               region_envelope_active_item->set_active ();
+                       } else if (have_envelope_active && have_envelope_inactive) {
+                               region_envelope_active_item->set_inconsistent ();
                        }
 
+                       region_envelope_active_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_gain_envelope_active));
                        items.push_back (SeparatorElem());
                }
 
                items.push_back (MenuElem (_("Normalize..."), sigc::mem_fun(*this, &Editor::normalize_region)));
-               if (ar->scale_amplitude() != 1) {
+               if (have_non_unity_scale_amplitude) {
                        items.push_back (MenuElem (_("Reset Gain"), sigc::mem_fun(*this, &Editor::reset_region_scale_amplitude)));
                }
 
-       } else if (mr) {
+       } else if (have_midi) {
                items.push_back (MenuElem (_("Quantize"), sigc::mem_fun(*this, &Editor::quantize_region)));
                items.push_back (MenuElem (_("Fork"), sigc::mem_fun(*this, &Editor::fork_region)));
                items.push_back (SeparatorElem());
@@ -1903,8 +1986,10 @@ Editor::add_region_context_items (StreamView* sv, boost::shared_ptr<Region> regi
                region_edit_menu_split_item->set_sensitive (false);
        }
 
-       items.push_back (MenuElem (_("Make Mono Regions"), (sigc::mem_fun(*this, &Editor::split_multichannel_region))));
-       region_edit_menu_split_multichannel_item = &items.back();
+       if (have_audio) {
+               items.push_back (MenuElem (_("Make Mono Regions"), (sigc::mem_fun(*this, &Editor::split_multichannel_region))));
+               region_edit_menu_split_multichannel_item = &items.back();
+       }
 
        items.push_back (MenuElem (_("Duplicate"), (sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_dialog), false))));
        items.push_back (MenuElem (_("Multi-Duplicate..."), (sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_dialog), true))));
@@ -1921,7 +2006,7 @@ Editor::add_region_context_items (StreamView* sv, boost::shared_ptr<Region> regi
        */
 
        string::size_type pos = 0;
-       string menu_item_name = (region) ? region->name() : _("Selected Regions");
+       string menu_item_name = (regions.size() == 1) ? regions.front()->name() : _("Selected Regions");
 
        while ((pos = menu_item_name.find ("_", pos)) != string::npos) {
                menu_item_name.replace (pos, 1, "__");
@@ -1929,6 +2014,9 @@ Editor::add_region_context_items (StreamView* sv, boost::shared_ptr<Region> regi
        }
 
        edit_items.push_back (MenuElem (menu_item_name, *region_menu));
+       if (multiple_regions_at_position && (layering_order_editor == 0 || !layering_order_editor->is_visible ())) {
+               edit_items.push_back (MenuElem (_("Choose Top Region..."), (bind (mem_fun(*this, &Editor::change_region_layering_order), position))));
+       }
        edit_items.push_back (SeparatorElem());
 }
 
@@ -2153,6 +2241,7 @@ Editor::set_snap_to (SnapType st)
        case SnapToBeatDiv32:
        case SnapToBeatDiv28:
        case SnapToBeatDiv24:
+       case SnapToBeatDiv20:
        case SnapToBeatDiv16:
        case SnapToBeatDiv14:
        case SnapToBeatDiv12:
@@ -2329,6 +2418,8 @@ Editor::set_state (const XMLNode& node, int /*version*/)
 
        if ((prop = node.property ("zoom"))) {
                reset_zoom (PBD::atof (prop->value()));
+       } else {
+               reset_zoom (frames_per_unit);
        }
 
        if ((prop = node.property ("snap-to"))) {
@@ -2377,7 +2468,7 @@ Editor::set_state (const XMLNode& node, int /*version*/)
 
        if ((prop = node.property ("show-measures"))) {
                bool yn = string_is_affirmative (prop->value());
-               _show_measures = !yn;
+               _show_measures = yn;
                RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleMeasureVisibility"));
                if (act) {
                        RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
@@ -2457,6 +2548,11 @@ Editor::set_state (const XMLNode& node, int /*version*/)
                the_notebook.set_current_page (atoi (prop->value ()));
        }
 
+       XMLNodeList children = node.children ();
+       for (XMLNodeList::const_iterator i = children.begin(); i != children.end(); ++i) {
+               selection->set_state (**i, Stateful::current_state_version);
+       }
+
        return 0;
 }
 
@@ -2543,6 +2639,8 @@ Editor::get_state ()
        snprintf (buf, sizeof (buf), "%d", the_notebook.get_current_page ());
        node->add_property (X_("editor-list-page"), buf);
 
+       node->add_child_nocopy (selection->get_state ());
+       
        return *node;
 }
 
@@ -2717,6 +2815,9 @@ Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
        case SnapToBeatDiv24:
                start = _session->tempo_map().round_to_beat_subdivision (start, 24, direction);
                break;
+       case SnapToBeatDiv20:
+               start = _session->tempo_map().round_to_beat_subdivision (start, 20, direction);
+               break;
        case SnapToBeatDiv16:
                start = _session->tempo_map().round_to_beat_subdivision (start, 16, direction);
                break;
@@ -2954,6 +3055,8 @@ Editor::setup_toolbar ()
        _zoom_box.pack_start (zoom_in_button, false, false);
        _zoom_box.pack_start (zoom_out_full_button, false, false);
 
+       _zoom_box.pack_start (zoom_focus_selector);
+       
        /* Track zoom buttons */
        tav_expand_button.set_name ("TrackHeightButton");
        tav_expand_button.set_size_request(-1,20);
@@ -2965,10 +3068,8 @@ Editor::setup_toolbar ()
        tav_shrink_button.add (*(manage (new Image (::get_icon("tav_shrink")))));
        tav_shrink_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &Editor::tav_zoom_step), false));
 
-       _zoom_box.pack_start (tav_expand_button);
        _zoom_box.pack_start (tav_shrink_button);
-
-       _zoom_box.pack_start (zoom_focus_selector);
+       _zoom_box.pack_start (tav_expand_button);
        
        _zoom_tearoff = manage (new TearOff (_zoom_box));
 
@@ -3063,7 +3164,7 @@ Editor::setup_tooltips ()
        ARDOUR_UI::instance()->set_tip (mouse_move_button, _("Select/Move Objects"));
        ARDOUR_UI::instance()->set_tip (mouse_gain_button, _("Draw Gain Automation"));
        ARDOUR_UI::instance()->set_tip (mouse_zoom_button, _("Select Zoom Range"));
-       ARDOUR_UI::instance()->set_tip (mouse_timefx_button, _("Stretch/Shrink Regions"));
+       ARDOUR_UI::instance()->set_tip (mouse_timefx_button, _("Stretch/Shrink Regions and MIDI Notes"));
        ARDOUR_UI::instance()->set_tip (mouse_audition_button, _("Listen to Specific Regions"));
        ARDOUR_UI::instance()->set_tip (join_object_range_button, _("Select/Move Objects or Ranges"));
        ARDOUR_UI::instance()->set_tip (internal_edit_button, _("Edit Region Contents (e.g. notes)"));
@@ -3081,6 +3182,7 @@ Editor::setup_tooltips ()
        ARDOUR_UI::instance()->set_tip (edit_point_selector, _("Edit point"));
        ARDOUR_UI::instance()->set_tip (midi_sound_notes, _("Sound Notes"));
        ARDOUR_UI::instance()->set_tip (midi_panic_button, _("Send note off and reset controller messages on all MIDI channels"));
+       ARDOUR_UI::instance()->set_tip (edit_mode_selector, _("Edit Mode"));
 }
 
 void
@@ -3488,22 +3590,7 @@ Editor::cycle_edit_mode ()
 void
 Editor::edit_mode_selection_done ()
 {
-       if (_session == 0) {
-               return;
-       }
-
-       string choice = edit_mode_selector.get_active_text();
-       EditMode mode = Slide;
-
-       if (choice == _("Splice Edit")) {
-               mode = Splice;
-       } else if (choice == _("Slide Edit")) {
-               mode = Slide;
-       } else if (choice == _("Lock Edit")) {
-               mode = Lock;
-       }
-
-       Config->set_edit_mode (mode);
+       Config->set_edit_mode (string_to_edit_mode (edit_mode_selector.get_active_text ()));
 }
 
 void
@@ -3534,6 +3621,8 @@ Editor::snap_type_selection_done ()
                snaptype = SnapToBeatDiv14;
        } else if (choice == _("Beats/16")) {
                snaptype = SnapToBeatDiv16;
+       } else if (choice == _("Beats/20")) {
+               snaptype = SnapToBeatDiv20;
        } else if (choice == _("Beats/24")) {
                snaptype = SnapToBeatDiv24;
        } else if (choice == _("Beats/28")) {
@@ -3935,6 +4024,9 @@ Editor::get_grid_type_as_beats (bool& success, nframes64_t position)
        case SnapToBeatDiv24:
                return 1.0/24.0;
                break;
+       case SnapToBeatDiv20:
+               return 1.0/20.0;
+               break;
        case SnapToBeatDiv16:
                return 1.0/16.0;
                break;
@@ -4116,10 +4208,8 @@ Editor::control_layout_scroll (GdkEventScroll* ev)
 }
 
 void
-Editor::session_state_saved (string snap_name)
+Editor::session_state_saved (string)
 {
-       ENSURE_GUI_THREAD (*this, &Editor::session_state_saved, snap_name);
-       
        update_title ();        
        _snapshots->redisplay ();
 }
@@ -4159,6 +4249,12 @@ Editor::maximise_editing_space ()
        } else {
                editor_summary_pane.set_position (post_maximal_vertical_pane_position);
        }
+
+       if (Config->get_keep_tearoffs()) {
+               _mouse_mode_tearoff->set_visible (true);
+               _tools_tearoff->set_visible (true);
+               _zoom_tearoff->set_visible (true);
+       }
 }
 
 void
@@ -4597,7 +4693,7 @@ Editor::set_loop_range (nframes64_t start, nframes64_t end, string cmd)
        Location* tll;
 
        if ((tll = transport_loop_location()) == 0) {
-               Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoLoop);
+               Location* loc = new Location (*_session, start, end, _("Loop"),  Location::IsAutoLoop);
                XMLNode &before = _session->locations()->get_state();
                _session->locations()->add (loc, true);
                _session->set_auto_loop_location (loc);
@@ -4624,7 +4720,7 @@ Editor::set_punch_range (nframes64_t start, nframes64_t end, string cmd)
        Location* tpl;
 
        if ((tpl = transport_punch_location()) == 0) {
-               Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoPunch);
+               Location* loc = new Location (*_session, start, end, _("Loop"),  Location::IsAutoPunch);
                XMLNode &before = _session->locations()->get_state();
                _session->locations()->add (loc, true);
                _session->set_auto_loop_location (loc);
@@ -4807,16 +4903,6 @@ Editor::show_rhythm_ferret ()
        rhythm_ferret->present ();
 }
 
-void
-Editor::show_global_port_matrix (ARDOUR::DataType t)
-{
-       if (_global_port_matrix[t] == 0) {
-               _global_port_matrix[t] = new GlobalPortMatrixWindow (_session, t);
-       }
-
-       _global_port_matrix[t]->show ();
-}
-
 void
 Editor::first_idle ()
 {
@@ -5013,14 +5099,22 @@ Editor::timeaxisview_deleted (TimeAxisView *tv)
        }
 
        ENSURE_GUI_THREAD (*this, &Editor::timeaxisview_deleted, tv);
-               
 
+       RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (tv);
+       
        _routes->route_removed (tv);
 
        if (tv == entered_track) {
                entered_track = 0;
        }
-       
+
+       TimeAxisView::Children c = tv->get_child_list ();
+       for (TimeAxisView::Children::const_iterator i = c.begin(); i != c.end(); ++i) {
+               if (entered_track == i->get()) {
+                       entered_track = 0;
+               }
+       }
+
        /* remove it from the list of track views */
 
        TrackViewList::iterator i;
@@ -5032,7 +5126,6 @@ Editor::timeaxisview_deleted (TimeAxisView *tv)
        /* update whatever the current mixer strip is displaying, if revelant */
 
        boost::shared_ptr<Route> route;
-       RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (tv);
 
        if (rtav) {
                route = rtav->route ();
@@ -5095,12 +5188,13 @@ Editor::foreach_time_axis_view (sigc::slot<void,TimeAxisView&> theslot)
        }
 }
 
+/** Find a RouteTimeAxisView by the ID of its route */
 RouteTimeAxisView*
-Editor::get_route_view_by_id (PBD::ID& id)
+Editor::get_route_view_by_route_id (PBD::ID& id) const
 {
        RouteTimeAxisView* v;
 
-       for(TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
+       for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
                if((v = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
                        if(v->route()->id() == id) {
                                return v;
@@ -5170,6 +5264,16 @@ Editor::show_region_in_region_list ()
        _regions->selection_mapover (sigc::mem_fun (*this, &Editor::show_a_region));
 }
 
+void
+Editor::step_edit_status_change (bool yn)
+{
+        if (yn) {
+                start_step_editing ();
+        } else {
+                stop_step_editing ();
+        }
+}
+
 void
 Editor::start_step_editing ()
 {
@@ -5462,3 +5566,41 @@ Editor::show_editor_list (bool yn)
                the_notebook.hide();
        }
 }
+
+void
+Editor::change_region_layering_order (framepos_t position)
+{
+        if (!clicked_routeview) {
+                if (layering_order_editor) {
+                        layering_order_editor->hide ();
+                }
+               return;
+       }
+
+        boost::shared_ptr<Track> track = boost::dynamic_pointer_cast<Track> (clicked_routeview->route());
+
+        if (!track) {
+                return;
+        }
+
+       boost::shared_ptr<Playlist> pl = track->playlist();
+
+       if (!pl) {
+                return;
+        }
+                
+        if (layering_order_editor == 0) {
+                layering_order_editor = new RegionLayeringOrderEditor(*this);
+        }
+
+        layering_order_editor->set_context (clicked_routeview->name(), _session, pl, position);
+        layering_order_editor->maybe_present ();
+}
+
+void
+Editor::update_region_layering_order_editor (framepos_t frame)
+{
+       if (layering_order_editor && layering_order_editor->is_visible ()) {
+               change_region_layering_order (frame);
+       }
+}