Updating zoom mouse cursor on modifier press. Fixes #274.
[ardour.git] / gtk2_ardour / editor.cc
index 62edad9991165d038ea656418e608ba7406fd64e..65130dc6de12e136f849359e93558cfe4e21c3f5 100644 (file)
 #include "editor_regions.h"
 #include "editor_locations.h"
 #include "editor_snapshots.h"
+#include "editor_summary.h"
+#include "region_layering_order_editor.h"
 
 #include "i18n.h"
 
@@ -147,6 +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"),
@@ -200,6 +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
@@ -209,9 +213,15 @@ static const gchar *_rb_opt_strings[] = {
 Gdk::Cursor* Editor::cross_hair_cursor = 0;
 Gdk::Cursor* Editor::selector_cursor = 0;
 Gdk::Cursor* Editor::trimmer_cursor = 0;
+Gdk::Cursor* Editor::left_side_trim_cursor = 0;
+Gdk::Cursor* Editor::right_side_trim_cursor = 0;
+Gdk::Cursor* Editor::fade_in_cursor = 0;
+Gdk::Cursor* Editor::fade_out_cursor = 0;
 Gdk::Cursor* Editor::grabber_cursor = 0;
+Gdk::Cursor* Editor::grabber_note_cursor = 0;
 Gdk::Cursor* Editor::grabber_edit_point_cursor = 0;
-Gdk::Cursor* Editor::zoom_cursor = 0;
+Gdk::Cursor* Editor::zoom_in_cursor = 0;
+Gdk::Cursor* Editor::zoom_out_cursor = 0;
 Gdk::Cursor* Editor::time_fx_cursor = 0;
 Gdk::Cursor* Editor::fader_cursor = 0;
 Gdk::Cursor* Editor::speaker_cursor = 0;
@@ -222,6 +232,7 @@ 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)
@@ -293,7 +304,9 @@ Editor::Editor ()
        , meters_running(false)
        , _pending_locate_request (false)
        , _pending_initial_locate (false)
+       , _last_cut_copy_source_track (0)
 
+       , _block_region_list_update_if_empty (false)
 {
        constructed = false;
 
@@ -323,6 +336,7 @@ 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;
@@ -342,7 +356,6 @@ 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;
@@ -375,11 +388,8 @@ 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;
-       }
-       allow_vertical_scroll = false;
        no_save_visual = false;
        resize_idle_id = -1;
 
@@ -399,6 +409,8 @@ Editor::Editor ()
 
        frames_per_unit = 2048; /* too early to use reset_zoom () */
 
+       _scroll_callbacks = 0;
+
        zoom_focus = ZoomFocusLeft;
        set_zoom_focus (ZoomFocusLeft);
        zoom_range_clock.ValueChanged.connect (sigc::mem_fun(*this, &Editor::zoom_adjustment_changed));
@@ -528,7 +540,6 @@ Editor::Editor ()
        edit_packer.set_border_width (0);
        edit_packer.set_name ("EditorWindow");
 
-       edit_packer.attach (zoom_vbox,               0, 1, 0, 2,    SHRINK,        FILL, 0, 0);
        /* labels for the rulers */
        edit_packer.attach (ruler_label_event_box,   1, 2, 0, 1,    FILL,        SHRINK, 0, 0);
        /* labels for the marker "tracks" */
@@ -574,27 +585,32 @@ Editor::Editor ()
        the_notebook.show_all ();
        
        post_maximal_editor_width = 0;
-       post_maximal_pane_position = 0;
+       post_maximal_horizontal_pane_position = 0;
+       post_maximal_editor_height = 0;
+       post_maximal_vertical_pane_position = 0;
 
-       VPaned *editor_summary_pane = manage(new VPaned());
-       editor_summary_pane->pack1(edit_packer);
+       editor_summary_pane.pack1(edit_packer);
 
        Button* summary_arrows_left_left = manage (new Button);
        summary_arrows_left_left->add (*manage (new Arrow (ARROW_LEFT, SHADOW_NONE)));
-       summary_arrows_left_left->signal_clicked().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_left));
+       summary_arrows_left_left->signal_pressed().connect (sigc::hide_return (sigc::mem_fun (*this, &Editor::horizontal_scroll_left_press)));
+       summary_arrows_left_left->signal_released().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_left_release));
        Button* summary_arrows_left_right = manage (new Button);
        summary_arrows_left_right->add (*manage (new Arrow (ARROW_RIGHT, SHADOW_NONE)));
-       summary_arrows_left_right->signal_clicked().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_right));
+       summary_arrows_left_right->signal_pressed().connect (sigc::hide_return (sigc::mem_fun (*this, &Editor::horizontal_scroll_right_press)));
+       summary_arrows_left_right->signal_released().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_right_release));
        VBox* summary_arrows_left = manage (new VBox);
        summary_arrows_left->pack_start (*summary_arrows_left_left);
        summary_arrows_left->pack_start (*summary_arrows_left_right);
 
        Button* summary_arrows_right_left = manage (new Button);
        summary_arrows_right_left->add (*manage (new Arrow (ARROW_LEFT, SHADOW_NONE)));
-       summary_arrows_right_left->signal_clicked().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_left));
+       summary_arrows_right_left->signal_pressed().connect (sigc::hide_return (sigc::mem_fun (*this, &Editor::horizontal_scroll_left_press)));
+       summary_arrows_right_left->signal_released().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_left_release));
        Button* summary_arrows_right_right = manage (new Button);
        summary_arrows_right_right->add (*manage (new Arrow (ARROW_RIGHT, SHADOW_NONE)));
-       summary_arrows_right_right->signal_clicked().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_right));
+       summary_arrows_right_right->signal_pressed().connect (sigc::hide_return (sigc::mem_fun (*this, &Editor::horizontal_scroll_right_press)));
+       summary_arrows_right_right->signal_released().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_right_release));
        VBox* summary_arrows_right = manage (new VBox);
        summary_arrows_right->pack_start (*summary_arrows_right_left);
        summary_arrows_right->pack_start (*summary_arrows_right_right);
@@ -608,11 +624,15 @@ Editor::Editor ()
        _summary_hbox.pack_start (*summary_frame, true, true);
        _summary_hbox.pack_start (*summary_arrows_right, false, false);
        
-       editor_summary_pane->pack2 (_summary_hbox);
+       editor_summary_pane.pack2 (_summary_hbox);
 
-       edit_pane.pack1 (*editor_summary_pane, true, true);
+       edit_pane.pack1 (editor_summary_pane, true, true);
        edit_pane.pack2 (the_notebook, false, true);
 
+       editor_summary_pane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun (*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&editor_summary_pane)));
+
+       /* XXX: editor_summary_pane might need similar special OS X treatment to the edit_pane */
+
        edit_pane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
 #ifdef GTKOSX
         Glib::PropertyProxy<int> proxy = edit_pane.property_position();
@@ -650,9 +670,6 @@ 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)));
 
@@ -693,7 +710,7 @@ 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);
@@ -721,6 +738,8 @@ Editor::Editor ()
 
        constructed = true;
        instant_save ();
+
+       setup_fade_images ();
 }
 
 Editor::~Editor()
@@ -736,7 +755,7 @@ Editor::~Editor()
                image_socket_listener = 0 ;
        }
 #endif
-
+        
        delete _routes;
        delete _route_groups;
        delete track_canvas;
@@ -782,7 +801,7 @@ Editor::set_entered_regionview (RegionView* rv)
        }
 
        if ((entered_regionview = rv) != 0) {
-               entered_regionview->entered ();
+               entered_regionview->entered (internal_editing ());
        }
 }
 
@@ -822,8 +841,6 @@ Editor::show_window ()
                        tv = (static_cast<TimeAxisView*>(*i));
                        tv->reset_height ();
                }
-
-               reset_zoom (frames_per_unit);
        }
 
        present ();
@@ -854,10 +871,10 @@ Editor::zoom_adjustment_changed ()
 
        if (fpu < 1.0) {
                fpu = 1.0;
-               zoom_range_clock.set ((nframes64_t) floor (fpu * _canvas_width));
+               zoom_range_clock.set ((framepos_t) floor (fpu * _canvas_width));
        } else if (fpu > _session->current_end_frame() / _canvas_width) {
                fpu = _session->current_end_frame() / _canvas_width;
-               zoom_range_clock.set ((nframes64_t) floor (fpu * _canvas_width));
+               zoom_range_clock.set ((framepos_t) floor (fpu * _canvas_width));
        }
 
        temporal_zoom (fpu);
@@ -877,7 +894,7 @@ Editor::control_scroll (float fraction)
        /*
                _control_scroll_target is an optional<T>
 
-               it acts like a pointer to an nframes64_t, with
+               it acts like a pointer to an framepos_t, with
                a operator conversion to boolean to check
                that it has a value could possibly use
                playhead_cursor->current_frame to store the
@@ -890,12 +907,12 @@ Editor::control_scroll (float fraction)
                _dragging_playhead = true;
        }
 
-       if ((fraction < 0.0f) && (*_control_scroll_target < (nframes64_t) fabs(step))) {
+       if ((fraction < 0.0f) && (*_control_scroll_target < (framepos_t) fabs(step))) {
                *_control_scroll_target = 0;
-       } else if ((fraction > 0.0f) && (max_frames - *_control_scroll_target < step)) {
-               *_control_scroll_target = max_frames - (current_page_frames()*2); // allow room for slop in where the PH is on the screen
+       } else if ((fraction > 0.0f) && (max_framepos - *_control_scroll_target < step)) {
+               *_control_scroll_target = max_framepos - (current_page_frames()*2); // allow room for slop in where the PH is on the screen
        } else {
-               *_control_scroll_target += (nframes64_t) floor (step);
+               *_control_scroll_target += (framepos_t) floor (step);
        }
 
        /* move visuals, we'll catch up with it later */
@@ -926,7 +943,7 @@ Editor::control_scroll (float fraction)
 }
 
 bool
-Editor::deferred_control_scroll (nframes64_t /*target*/)
+Editor::deferred_control_scroll (framepos_t /*target*/)
 {
        _session->request_locate (*_control_scroll_target, _session->transport_rolling());
        // reset for next stream
@@ -960,20 +977,23 @@ Editor::on_realize ()
 }
 
 void
-Editor::map_position_change (nframes64_t frame)
+Editor::map_position_change (framepos_t frame)
 {
        ENSURE_GUI_THREAD (*this, &Editor::map_position_change, frame)
 
-       if (_session == 0 || !_follow_playhead) {
+       if (_session == 0) {
                return;
        }
 
-       center_screen (frame);
+       if (_follow_playhead) {
+               center_screen (frame);
+       }
+
        playhead_cursor->set_position (frame);
 }
 
 void
-Editor::center_screen (nframes64_t frame)
+Editor::center_screen (framepos_t frame)
 {
        double page = _canvas_width * frames_per_unit;
 
@@ -986,12 +1006,12 @@ Editor::center_screen (nframes64_t frame)
 }
 
 void
-Editor::center_screen_internal (nframes64_t frame, float page)
+Editor::center_screen_internal (framepos_t frame, float page)
 {
        page /= 2;
 
        if (frame > page) {
-               frame -= (nframes64_t) page;
+               frame -= (framepos_t) page;
        } else {
                frame = 0;
        }
@@ -1078,6 +1098,7 @@ 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());
@@ -1110,7 +1131,7 @@ 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);
                }
@@ -1123,7 +1144,7 @@ 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);
                }
@@ -1175,16 +1196,16 @@ Editor::build_cursors ()
 {
        using namespace Gdk;
 
-       Gdk::Color mbg ("#000000" ); /* Black */
-       Gdk::Color mfg ("#0000ff" ); /* Blue. */
-
        {
-               RefPtr<Bitmap> source, mask;
-               source = Bitmap::create (mag_bits, mag_width, mag_height);
-               mask = Bitmap::create (magmask_bits, mag_width, mag_height);
-               zoom_cursor = new Gdk::Cursor (source, mask, mfg, mbg, mag_x_hot, mag_y_hot);
+               Glib::RefPtr<Gdk::Pixbuf> zoom_in_cursor_pixbuf (::get_icon ("zoom_in_cursor"));
+               zoom_in_cursor = new Gdk::Cursor (Gdk::Display::get_default(), zoom_in_cursor_pixbuf, 5, 5);
        }
 
+       {
+               Glib::RefPtr<Gdk::Pixbuf> zoom_out_cursor_pixbuf (::get_icon ("zoom_out_cursor"));
+               zoom_out_cursor = new Gdk::Cursor (Gdk::Display::get_default(), zoom_out_cursor_pixbuf, 5, 5);
+       }
+       
        Gdk::Color fbg ("#ffffff" );
        Gdk::Color ffg  ("#000000" );
 
@@ -1222,6 +1243,11 @@ Editor::build_cursors ()
 
        grabber_cursor = new Gdk::Cursor (HAND2);
 
+       {
+               Glib::RefPtr<Gdk::Pixbuf> grabber_note_pixbuf (::get_icon ("grabber_note"));
+               grabber_note_cursor = new Gdk::Cursor (Gdk::Display::get_default(), grabber_note_pixbuf, 5, 10);
+       }
+
        {
                Glib::RefPtr<Gdk::Pixbuf> grabber_edit_point_pixbuf (::get_icon ("grabber_edit_point"));
                grabber_edit_point_cursor = new Gdk::Cursor (Gdk::Display::get_default(), grabber_edit_point_pixbuf, 5, 17);
@@ -1229,6 +1255,27 @@ Editor::build_cursors ()
 
        cross_hair_cursor = new Gdk::Cursor (CROSSHAIR);
        trimmer_cursor =  new Gdk::Cursor (SB_H_DOUBLE_ARROW);
+
+       {
+               Glib::RefPtr<Gdk::Pixbuf> apixbuf (::get_icon ("trim_left_cursor"));
+               left_side_trim_cursor = new Gdk::Cursor (Gdk::Display::get_default(), apixbuf, 5, 11);
+       }
+
+       {
+               Glib::RefPtr<Gdk::Pixbuf> apixbuf (::get_icon ("trim_right_cursor"));
+               right_side_trim_cursor = new Gdk::Cursor (Gdk::Display::get_default(), apixbuf, 23, 11);
+       }
+
+       {
+               Glib::RefPtr<Gdk::Pixbuf> apixbuf (::get_icon ("fade_in_cursor"));
+               fade_in_cursor = new Gdk::Cursor (Gdk::Display::get_default(), apixbuf, 0, 40);
+       }
+
+       {
+               Glib::RefPtr<Gdk::Pixbuf> apixbuf (::get_icon ("fade_out_cursor"));
+               fade_out_cursor = new Gdk::Cursor (Gdk::Display::get_default(), apixbuf, 27, 40);
+       }
+
        selector_cursor = new Gdk::Cursor (XTERM);
        time_fx_cursor = new Gdk::Cursor (SIZING);
        wait_cursor = new Gdk::Cursor  (WATCH);
@@ -1237,6 +1284,7 @@ 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 */
@@ -1267,14 +1315,57 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
                items.push_back (SeparatorElem());
 
                if (Profile->get_sae()) {
-                       items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
-                       items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
+                       
+                       items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLinear)));
+                       items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeFast)));
+                       
                } else {
-                       items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
-                       items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
-                       items.push_back (MenuElem (_("Slow"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogB)));
-                       items.push_back (MenuElem (_("Fast"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogA)));
-                       items.push_back (MenuElem (_("Fastest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Slow)));
+
+                       items.push_back (
+                               ImageMenuElem (
+                                       _("Linear"),
+                                       *_fade_in_images[FadeLinear],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLinear)
+                                       )
+                               );
+
+                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+
+                       items.push_back (
+                               ImageMenuElem (
+                                       _("Slowest"),
+                                       *_fade_in_images[FadeFast],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeFast)
+                                       ));
+                       
+                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+                       
+                       items.push_back (
+                               ImageMenuElem (
+                                       _("Slow"),
+                                       *_fade_in_images[FadeLogB],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLogB)
+                                       ));
+                       
+                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+                       
+                       items.push_back (
+                               ImageMenuElem (
+                                       _("Fast"),
+                                       *_fade_in_images[FadeLogA],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLogA)
+                                       ));
+                       
+                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+                       
+                       items.push_back (
+                               ImageMenuElem (
+                                       _("Fastest"),
+                                       *_fade_in_images[FadeSlow],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeSlow)
+                                       ));
+                       
+                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
                }
 
                break;
@@ -1290,14 +1381,55 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
                items.push_back (SeparatorElem());
 
                if (Profile->get_sae()) {
-                       items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
-                       items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
+                       items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeLinear)));
+                       items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeSlow)));
                } else {
-                       items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
-                       items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
-                       items.push_back (MenuElem (_("Slow"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogA)));
-                       items.push_back (MenuElem (_("Fast"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogB)));
-                       items.push_back (MenuElem (_("Fastest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Fast)));
+
+                       items.push_back (
+                               ImageMenuElem (
+                                       _("Linear"),
+                                       *_fade_out_images[FadeLinear],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeLinear)
+                                       )
+                               );
+
+                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+
+                       items.push_back (
+                               ImageMenuElem (
+                                       _("Slowest"),
+                                       *_fade_out_images[FadeFast],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeSlow)
+                                       ));
+                       
+                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+                       
+                       items.push_back (
+                               ImageMenuElem (
+                                       _("Slow"),
+                                       *_fade_out_images[FadeLogB],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeLogA)
+                                       ));
+                       
+                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+                       
+                       items.push_back (
+                               ImageMenuElem (
+                                       _("Fast"),
+                                       *_fade_out_images[FadeLogA],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeLogB)
+                                       ));
+                       
+                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+                       
+                       items.push_back (
+                               ImageMenuElem (
+                                       _("Fastest"),
+                                       *_fade_out_images[FadeSlow],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeFast)
+                                       ));
+                       
+                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
                }
 
                break;
@@ -1313,16 +1445,18 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
 }
 
 void
-Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection, nframes64_t frame)
+Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection, framepos_t frame)
 {
        using namespace Menu_Helpers;
-       Menu* (Editor::*build_menu_function)(nframes64_t);
+       Menu* (Editor::*build_menu_function)(framepos_t);
        Menu *menu;
 
        switch (item_type) {
        case RegionItem:
        case RegionViewName:
        case RegionViewNameHighlight:
+       case LeftFrameHandle:
+       case RightFrameHandle:
                if (with_selection) {
                        build_menu_function = &Editor::build_track_selection_context_menu;
                } else {
@@ -1364,6 +1498,8 @@ Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type,
        case RegionItem:
        case RegionViewName:
        case RegionViewNameHighlight:
+        case LeftFrameHandle:
+        case RightFrameHandle:
                if (!with_selection) {
                        if (region_edit_menu_split_item) {
                                if (clicked_regionview && clicked_regionview->region()->covers (get_preferred_edit_position())) {
@@ -1429,7 +1565,7 @@ Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type,
 }
 
 Menu*
-Editor::build_track_context_menu (nframes64_t)
+Editor::build_track_context_menu (framepos_t)
 {
        using namespace Menu_Helpers;
 
@@ -1441,7 +1577,7 @@ Editor::build_track_context_menu (nframes64_t)
 }
 
 Menu*
-Editor::build_track_bus_context_menu (nframes64_t)
+Editor::build_track_bus_context_menu (framepos_t)
 {
        using namespace Menu_Helpers;
 
@@ -1453,34 +1589,48 @@ Editor::build_track_bus_context_menu (nframes64_t)
 }
 
 Menu*
-Editor::build_track_region_context_menu (nframes64_t frame)
+Editor::build_track_region_context_menu (framepos_t frame)
 {
        using namespace Menu_Helpers;
        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) {
                boost::shared_ptr<Track> tr;
                boost::shared_ptr<Playlist> pl;
 
-               if ((tr = rtv->track()) && ((pl = tr->playlist()))) {
-                       Playlist::RegionList* regions = pl->regions_at ((nframes64_t) floor ( (double)frame * tr->speed()));
+               /* Don't offer a region submenu if we are in internal edit mode, as we don't select regions in this
+                  mode and so offering region context is somewhat confusing.
+               */
+               if ((tr = rtv->track()) && ((pl = tr->playlist())) && !internal_editing()) {
+                        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);
                }
        }
 
@@ -1490,7 +1640,7 @@ Editor::build_track_region_context_menu (nframes64_t frame)
 }
 
 Menu*
-Editor::build_track_crossfade_context_menu (nframes64_t frame)
+Editor::build_track_crossfade_context_menu (framepos_t frame)
 {
        using namespace Menu_Helpers;
        MenuList& edit_items  = track_crossfade_context_menu.items();
@@ -1505,7 +1655,6 @@ 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);
@@ -1516,18 +1665,26 @@ 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);
                }
        }
 
@@ -1573,7 +1730,7 @@ Editor::analyze_range_selection()
 }
 
 Menu*
-Editor::build_track_selection_context_menu (nframes64_t)
+Editor::build_track_selection_context_menu (framepos_t)
 {
        using namespace Menu_Helpers;
        MenuList& edit_items  = track_selection_context_menu.items();
@@ -1605,7 +1762,7 @@ Editor::add_crossfade_context_items (AudioStreamView* /*view*/, boost::shared_pt
        }
 
        items.push_back (MenuElem (str, sigc::bind (sigc::mem_fun(*this, &Editor::toggle_xfade_active), boost::weak_ptr<Crossfade> (xfade))));
-       items.push_back (MenuElem (_("Edit"), sigc::bind (sigc::mem_fun(*this, &Editor::edit_xfade), boost::weak_ptr<Crossfade> (xfade))));
+       items.push_back (MenuElem (_("Edit..."), sigc::bind (sigc::mem_fun(*this, &Editor::edit_xfade), boost::weak_ptr<Crossfade> (xfade))));
 
        if (xfade->can_follow_overlap()) {
 
@@ -1647,7 +1804,8 @@ 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;
@@ -1655,24 +1813,106 @@ 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) {
+                        /* its a bit unfortunate that "envelope visible" is a view-only
+                           property. we have to find the regionview to able to check
+                           its current setting.
+                        */
+
+                       RegionView* rv = sv->find_view (ar);
+                        have_envelope_invisible = true;
+
+                        if (rv) {
+                                AudioRegionView* arv = dynamic_cast<AudioRegionView*> (rv);
+                                if (arv && arv->envelope_visible()) {
+                                        have_envelope_visible = 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)));
        }
 
@@ -1690,107 +1930,96 @@ 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->positional_lock_style()) {
-       case Region::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());
@@ -1852,8 +2081,10 @@ 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))));
@@ -1870,7 +2101,7 @@ 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, "__");
@@ -1878,6 +2109,9 @@ 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());
 }
 
@@ -1902,7 +2136,7 @@ Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
        }
 
        edit_items.push_back (SeparatorElem());
-       edit_items.push_back (MenuElem (_("Silence Range"), sigc::mem_fun(*this, &Editor::separate_region_from_selection)));
+       edit_items.push_back (MenuElem (_("Convert to region in-place"), mem_fun(*this, &Editor::separate_region_from_selection)));
        edit_items.push_back (MenuElem (_("Convert to Region in Region List"), sigc::mem_fun(*this, &Editor::new_region_from_selection)));
 
        edit_items.push_back (SeparatorElem());
@@ -2102,6 +2336,7 @@ Editor::set_snap_to (SnapType st)
        case SnapToBeatDiv32:
        case SnapToBeatDiv28:
        case SnapToBeatDiv24:
+       case SnapToBeatDiv20:
        case SnapToBeatDiv16:
        case SnapToBeatDiv14:
        case SnapToBeatDiv12:
@@ -2181,7 +2416,7 @@ Editor::set_edit_point_preference (EditPoint ep, bool force)
                Glib::RefPtr<RadioAction>::cast_dynamic(act)->set_active (true);
        }
 
-       nframes64_t foo;
+       framepos_t foo;
        bool in_track_canvas;
 
        if (!mouse_frame (foo, in_track_canvas)) {
@@ -2261,7 +2496,7 @@ Editor::set_state (const XMLNode& node, int /*version*/)
        move (x, y);
 
        if (_session && (prop = node.property ("playhead"))) {
-               nframes64_t pos;
+               framepos_t pos;
                 sscanf (prop->value().c_str(), "%" PRIi64, &pos);
                playhead_cursor->set_position (pos);
        } else {
@@ -2278,6 +2513,8 @@ 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"))) {
@@ -2296,7 +2533,7 @@ Editor::set_state (const XMLNode& node, int /*version*/)
        }
 
        if ((prop = node.property ("left-frame")) != 0){
-               nframes64_t pos;
+               framepos_t pos;
                if (sscanf (prop->value().c_str(), "%" PRId64, &pos) == 1) {
                        reset_x_origin (pos);
                }
@@ -2326,7 +2563,7 @@ 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);
@@ -2406,8 +2643,10 @@ Editor::set_state (const XMLNode& node, int /*version*/)
                the_notebook.set_current_page (atoi (prop->value ()));
        }
 
-       if ((prop = node.property (X_("editor-pane-position")))) {
-               edit_pane.set_position (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);
+               _regions->set_state (**i);
        }
 
        return 0;
@@ -2445,7 +2684,9 @@ Editor::get_state ()
                snprintf(buf, sizeof(buf), "%d", yoff);
                geometry->add_property("y-off", string(buf));
                snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&edit_pane)->gobj()));
-               geometry->add_property("edit_pane_pos", string(buf));
+               geometry->add_property("edit-horizontal-pane-pos", string(buf));
+               snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&editor_summary_pane)->gobj()));
+               geometry->add_property("edit-vertical-pane-pos", string(buf));
 
                node->add_child_nocopy (*geometry);
        }
@@ -2494,9 +2735,9 @@ Editor::get_state ()
        snprintf (buf, sizeof (buf), "%d", the_notebook.get_current_page ());
        node->add_property (X_("editor-list-page"), buf);
 
-       snprintf (buf, sizeof (buf), "%d", edit_pane.get_position ());
-       node->add_property (X_("editor-pane-position"), buf);
-
+       node->add_child_nocopy (selection->get_state ());
+       node->add_child_nocopy (_regions->get_state ());
+       
        return *node;
 }
 
@@ -2527,7 +2768,7 @@ Editor::trackview_by_y_position (double y)
  *  @param event Event to get current key modifier information from, or 0.
  */
 void
-Editor::snap_to_with_modifier (nframes64_t& start, GdkEvent const * event, int32_t direction, bool for_mark)
+Editor::snap_to_with_modifier (framepos_t& start, GdkEvent const * event, int32_t direction, bool for_mark)
 {
        if (!_session || !event) {
                return;
@@ -2545,7 +2786,7 @@ Editor::snap_to_with_modifier (nframes64_t& start, GdkEvent const * event, int32
 }
 
 void
-Editor::snap_to (nframes64_t& start, int32_t direction, bool for_mark)
+Editor::snap_to (framepos_t& start, int32_t direction, bool for_mark)
 {
        if (!_session || _snap_mode == SnapOff) {
                return;
@@ -2555,17 +2796,17 @@ Editor::snap_to (nframes64_t& start, int32_t direction, bool for_mark)
 }
 
 void
-Editor::timecode_snap_to_internal (nframes64_t& start, int32_t direction, bool /*for_mark*/)
+Editor::timecode_snap_to_internal (framepos_t& start, int32_t direction, bool /*for_mark*/)
 {
-       const nframes64_t one_timecode_second = (nframes64_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame());
-       nframes64_t one_timecode_minute = (nframes64_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame() * 60);
+       const framepos_t one_timecode_second = (framepos_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame());
+       framepos_t one_timecode_minute = (framepos_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame() * 60);
 
        switch (_snap_type) {
        case SnapToTimecodeFrame:
                if (((direction == 0) && (fmod((double)start, (double)_session->frames_per_timecode_frame()) > (_session->frames_per_timecode_frame() / 2))) || (direction > 0)) {
-                       start = (nframes64_t) (ceil ((double) start / _session->frames_per_timecode_frame()) * _session->frames_per_timecode_frame());
+                       start = (framepos_t) (ceil ((double) start / _session->frames_per_timecode_frame()) * _session->frames_per_timecode_frame());
                } else {
-                       start = (nframes64_t) (floor ((double) start / _session->frames_per_timecode_frame()) *  _session->frames_per_timecode_frame());
+                       start = (framepos_t) (floor ((double) start / _session->frames_per_timecode_frame()) *  _session->frames_per_timecode_frame());
                }
                break;
 
@@ -2577,9 +2818,9 @@ Editor::timecode_snap_to_internal (nframes64_t& start, int32_t direction, bool /
                        start -= _session->timecode_offset ();
                }
                if (((direction == 0) && (start % one_timecode_second > one_timecode_second / 2)) || direction > 0) {
-                       start = (nframes64_t) ceil ((double) start / one_timecode_second) * one_timecode_second;
+                       start = (framepos_t) ceil ((double) start / one_timecode_second) * one_timecode_second;
                } else {
-                       start = (nframes64_t) floor ((double) start / one_timecode_second) * one_timecode_second;
+                       start = (framepos_t) floor ((double) start / one_timecode_second) * one_timecode_second;
                }
 
                if (_session->timecode_offset_negative())
@@ -2598,9 +2839,9 @@ Editor::timecode_snap_to_internal (nframes64_t& start, int32_t direction, bool /
                        start -= _session->timecode_offset ();
                }
                if (((direction == 0) && (start % one_timecode_minute > one_timecode_minute / 2)) || direction > 0) {
-                       start = (nframes64_t) ceil ((double) start / one_timecode_minute) * one_timecode_minute;
+                       start = (framepos_t) ceil ((double) start / one_timecode_minute) * one_timecode_minute;
                } else {
-                       start = (nframes64_t) floor ((double) start / one_timecode_minute) * one_timecode_minute;
+                       start = (framepos_t) floor ((double) start / one_timecode_minute) * one_timecode_minute;
                }
                if (_session->timecode_offset_negative())
                {
@@ -2616,13 +2857,13 @@ Editor::timecode_snap_to_internal (nframes64_t& start, int32_t direction, bool /
 }
 
 void
-Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
+Editor::snap_to_internal (framepos_t& start, int32_t direction, bool for_mark)
 {
-       const nframes64_t one_second = _session->frame_rate();
-       const nframes64_t one_minute = _session->frame_rate() * 60;
-       nframes64_t presnap = start;
-       nframes64_t before;
-       nframes64_t after;
+       const framepos_t one_second = _session->frame_rate();
+       const framepos_t one_minute = _session->frame_rate() * 60;
+       framepos_t presnap = start;
+       framepos_t before;
+       framepos_t after;
 
        switch (_snap_type) {
        case SnapToTimecodeFrame:
@@ -2632,25 +2873,25 @@ Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
 
        case SnapToCDFrame:
                if (((direction == 0) && (start % (one_second/75) > (one_second/75) / 2)) || (direction > 0)) {
-                       start = (nframes64_t) ceil ((double) start / (one_second / 75)) * (one_second / 75);
+                       start = (framepos_t) ceil ((double) start / (one_second / 75)) * (one_second / 75);
                } else {
-                       start = (nframes64_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
+                       start = (framepos_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
                }
                break;
 
        case SnapToSeconds:
                if (((direction == 0) && (start % one_second > one_second / 2)) || (direction > 0)) {
-                       start = (nframes64_t) ceil ((double) start / one_second) * one_second;
+                       start = (framepos_t) ceil ((double) start / one_second) * one_second;
                } else {
-                       start = (nframes64_t) floor ((double) start / one_second) * one_second;
+                       start = (framepos_t) floor ((double) start / one_second) * one_second;
                }
                break;
 
        case SnapToMinutes:
                if (((direction == 0) && (start % one_minute > one_minute / 2)) || (direction > 0)) {
-                       start = (nframes64_t) ceil ((double) start / one_minute) * one_minute;
+                       start = (framepos_t) ceil ((double) start / one_minute) * one_minute;
                } else {
-                       start = (nframes64_t) floor ((double) start / one_minute) * one_minute;
+                       start = (framepos_t) floor ((double) start / one_minute) * one_minute;
                }
                break;
 
@@ -2671,6 +2912,9 @@ 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;
@@ -2712,11 +2956,11 @@ Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
 
                _session->locations()->marks_either_side (start, before, after);
 
-               if (before == max_frames) {
+               if (before == max_framepos) {
                        start = after;
-               } else if (after == max_frames) {
+               } else if (after == max_framepos) {
                        start = before;
-               } else if (before != max_frames && after != max_frames) {
+               } else if (before != max_framepos && after != max_framepos) {
                        /* have before and after */
                        if ((start - before) < (after - start)) {
                                start = before;
@@ -2733,8 +2977,8 @@ Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
        case SnapToRegionBoundary:
                if (!region_boundary_cache.empty()) {
 
-                       vector<nframes64_t>::iterator prev = region_boundary_cache.end ();
-                       vector<nframes64_t>::iterator next = region_boundary_cache.end ();
+                       vector<framepos_t>::iterator prev = region_boundary_cache.end ();
+                       vector<framepos_t>::iterator next = region_boundary_cache.end ();
 
                        if (direction > 0) {
                                next = std::upper_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
@@ -2747,8 +2991,8 @@ Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
                                prev--;
                        }
 
-                       nframes64_t const p = (prev == region_boundary_cache.end()) ? region_boundary_cache.front () : *prev;
-                       nframes64_t const n = (next == region_boundary_cache.end()) ? region_boundary_cache.back () : *next;
+                       framepos_t const p = (prev == region_boundary_cache.end()) ? region_boundary_cache.front () : *prev;
+                       framepos_t const n = (next == region_boundary_cache.end()) ? region_boundary_cache.back () : *next;
 
                        if (start > (p + n) / 2) {
                                start = n;
@@ -2885,8 +3129,8 @@ Editor::setup_toolbar ()
 
        /* Zoom */
 
-       zoom_box.set_spacing (1);
-       zoom_box.set_border_width (0);
+       _zoom_box.set_spacing (1);
+       _zoom_box.set_border_width (0);
 
        zoom_in_button.set_name ("EditorTimeButton");
        zoom_in_button.set_image (*(manage (new Image (Stock::ZOOM_IN, Gtk::ICON_SIZE_MENU))));
@@ -2904,10 +3148,12 @@ Editor::setup_toolbar ()
        set_popdown_strings (zoom_focus_selector, zoom_focus_strings, true);
        zoom_focus_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done));
 
-       zoom_box.pack_start (zoom_out_button, false, false);
-       zoom_box.pack_start (zoom_in_button, false, false);
-       zoom_box.pack_start (zoom_out_full_button, false, false);
+       _zoom_box.pack_start (zoom_out_button, false, false);
+       _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);
@@ -2919,18 +3165,20 @@ 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));
 
-       track_zoom_box.set_spacing (1);
-       track_zoom_box.set_border_width (0);
-
-       track_zoom_box.pack_start (tav_shrink_button, false, false);
-       track_zoom_box.pack_start (tav_expand_button, false, false);
-
-       HBox* zbc = manage (new HBox);
-       zbc->pack_start (zoom_focus_selector, PACK_SHRINK);
-       zoom_vbox.pack_start (*zbc, PACK_SHRINK);
-       zoom_vbox.pack_start (zoom_box, PACK_SHRINK);
-       zoom_vbox.pack_start (track_zoom_box, PACK_SHRINK);
-
+       _zoom_box.pack_start (tav_shrink_button);
+       _zoom_box.pack_start (tav_expand_button);
+       
+       _zoom_tearoff = manage (new TearOff (_zoom_box));
+
+       _zoom_tearoff->Detach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
+                                                  &_zoom_tearoff->tearoff_window()));
+       _zoom_tearoff->Attach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
+                                                  &_zoom_tearoff->tearoff_window(), 0));
+       _zoom_tearoff->Hidden.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
+                                                  &_zoom_tearoff->tearoff_window()));
+       _zoom_tearoff->Visible.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
+                                                   &_zoom_tearoff->tearoff_window(), 0));
+       
        snap_box.set_spacing (1);
        snap_box.set_border_width (2);
 
@@ -2990,6 +3238,7 @@ Editor::setup_toolbar ()
        toolbar_hbox.set_border_width (1);
 
        toolbar_hbox.pack_start (*_mouse_mode_tearoff, false, false);
+       toolbar_hbox.pack_start (*_zoom_tearoff, false, false);
        toolbar_hbox.pack_start (*_tools_tearoff, false, false);
 
        hbox->pack_start (snap_box, false, false);
@@ -3010,9 +3259,9 @@ void
 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_gain_button, _("Draw Region Gain"));
        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)"));
@@ -3030,6 +3279,7 @@ 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
@@ -3064,7 +3314,7 @@ Editor::setup_midi_toolbar ()
 
 int
 Editor::convert_drop_to_paths (
-               vector<ustring>&                paths,
+               vector<string>&                paths,
                const RefPtr<Gdk::DragContext>& /*context*/,
                gint                            /*x*/,
                gint                            /*y*/,
@@ -3075,8 +3325,8 @@ Editor::convert_drop_to_paths (
        if (_session == 0) {
                return -1;
        }
-
-       vector<ustring> uris = data.get_uris();
+        
+       vector<string> uris = data.get_uris();
 
        if (uris.empty()) {
 
@@ -3094,7 +3344,7 @@ Editor::convert_drop_to_paths (
                   THERE MAY BE NO NULL TERMINATING CHAR!!!
                */
 
-               ustring txt = data.get_text();
+               string txt = data.get_text();
                const char* p;
                const char* q;
 
@@ -3122,7 +3372,7 @@ Editor::convert_drop_to_paths (
 
                                        if (q > p)
                                        {
-                                               uris.push_back (ustring (p, q - p + 1));
+                                               uris.push_back (string (p, q - p + 1));
                                        }
                                }
                        }
@@ -3138,18 +3388,18 @@ Editor::convert_drop_to_paths (
                }
        }
 
-       for (vector<ustring>::iterator i = uris.begin(); i != uris.end(); ++i) {
+       for (vector<string>::iterator i = uris.begin(); i != uris.end(); ++i) {
 
                if ((*i).substr (0,7) == "file://") {
 
-                       ustring p = *i;
+                       string p = *i;
                        PBD::url_decode (p);
 
                        // scan forward past three slashes
 
-                       ustring::size_type slashcnt = 0;
-                       ustring::size_type n = 0;
-                       ustring::iterator x = p.begin();
+                       string::size_type slashcnt = 0;
+                       string::size_type n = 0;
+                       string::iterator x = p.begin();
 
                        while (slashcnt < 3 && x != p.end()) {
                                if ((*x) == '/') {
@@ -3437,22 +3687,7 @@ 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
@@ -3483,6 +3718,8 @@ 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")) {
@@ -3669,7 +3906,14 @@ Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
        char buf[32];
        XMLNode* node = ARDOUR_UI::instance()->editor_settings();
        int width, height;
-       static int32_t done;
+
+       enum Pane {
+               Horizontal = 0x1,
+               Vertical = 0x2
+       };
+
+       static Pane done;
+       
        XMLNode* geometry;
 
        width = default_width;
@@ -3677,15 +3921,11 @@ Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
 
        if ((geometry = find_named_node (*node, "geometry")) != 0) {
 
-               if ((prop = geometry->property ("x_size")) == 0) {
-                       prop = geometry->property ("x-size");
-               }
+               prop = geometry->property ("x-size");
                if (prop) {
                        width = atoi (prop->value());
                }
-               if ((prop = geometry->property ("y_size")) == 0) {
-                       prop = geometry->property ("y-size");
-               }
+               prop = geometry->property ("y-size");
                if (prop) {
                        height = atoi (prop->value());
                }
@@ -3693,11 +3933,11 @@ Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
 
        if (which == static_cast<Paned*> (&edit_pane)) {
 
-               if (done) {
+               if (done & Horizontal) {
                        return;
                }
 
-               if (!geometry || (prop = geometry->property ("edit-pane-pos")) == 0) {
+               if (!geometry || (prop = geometry->property ("edit-horizontal-pane-pos")) == 0) {
                        /* initial allocation is 90% to canvas, 10% to notebook */
                        pos = (int) floor (alloc.get_width() * 0.90f);
                        snprintf (buf, sizeof(buf), "%d", pos);
@@ -3705,10 +3945,33 @@ Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
                        pos = atoi (prop->value());
                }
 
-               if ((done = GTK_WIDGET(edit_pane.gobj())->allocation.width > pos)) {
+               if (GTK_WIDGET(edit_pane.gobj())->allocation.width > pos) {
                        edit_pane.set_position (pos);
-                       pre_maximal_pane_position = pos;
+                       pre_maximal_horizontal_pane_position = pos;
+               }
+
+               done = (Pane) (done | Horizontal);
+               
+       } else if (which == static_cast<Paned*> (&editor_summary_pane)) {
+
+               if (done & Vertical) {
+                       return;
+               }
+
+               if (!geometry || (prop = geometry->property ("edit-vertical-pane-pos")) == 0) {
+                       /* initial allocation is 90% to canvas, 10% to summary */
+                       pos = (int) floor (alloc.get_height() * 0.90f);
+                       snprintf (buf, sizeof(buf), "%d", pos);
+               } else {
+                       pos = atoi (prop->value());
+               }
+
+               if (GTK_WIDGET(editor_summary_pane.gobj())->allocation.height > pos) {
+                       editor_summary_pane.set_position (pos);
+                       pre_maximal_vertical_pane_position = pos;
                }
+
+               done = (Pane) (done | Vertical);
        }
 }
 
@@ -3840,7 +4103,7 @@ Editor::playlist_selector () const
 }
 
 Evoral::MusicalTime
-Editor::get_grid_type_as_beats (bool& success, nframes64_t position)
+Editor::get_grid_type_as_beats (bool& success, framepos_t position)
 {
        success = true;
 
@@ -3858,6 +4121,9 @@ 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;
@@ -3916,10 +4182,10 @@ Editor::get_grid_type_as_beats (bool& success, nframes64_t position)
        return 0.0;
 }
 
-nframes64_t
-Editor::get_nudge_distance (nframes64_t pos, nframes64_t& next)
+framecnt_t
+Editor::get_nudge_distance (framepos_t pos, framecnt_t& next)
 {
-       nframes64_t ret;
+       framecnt_t ret;
 
        ret = nudge_clock.current_duration (pos);
        next = ret + 1; /* XXXX fix me */
@@ -3964,7 +4230,7 @@ Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
 }
 
 bool
-Editor::audio_region_selection_covers (nframes64_t where)
+Editor::audio_region_selection_covers (framepos_t where)
 {
        for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
                if ((*a)->region()->covers (where)) {
@@ -4039,10 +4305,8 @@ 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 ();
 }
@@ -4052,40 +4316,67 @@ Editor::maximise_editing_space ()
 {
        _mouse_mode_tearoff->set_visible (false);
        _tools_tearoff->set_visible (false);
+       _zoom_tearoff->set_visible (false);
 
-       pre_maximal_pane_position = edit_pane.get_position();
-       pre_maximal_editor_width = this->get_width();
+       pre_maximal_horizontal_pane_position = edit_pane.get_position ();
+       pre_maximal_vertical_pane_position = editor_summary_pane.get_position ();
+       pre_maximal_editor_width = this->get_width ();
+       pre_maximal_editor_height = this->get_height ();
 
-       if(post_maximal_pane_position == 0) {
-               post_maximal_pane_position = edit_pane.get_width();
+       if (post_maximal_horizontal_pane_position == 0) {
+               post_maximal_horizontal_pane_position = edit_pane.get_width();
        }
 
-       fullscreen();
+       if (post_maximal_vertical_pane_position == 0) {
+               post_maximal_vertical_pane_position = editor_summary_pane.get_height();
+       }
+       
+       fullscreen ();
 
-       if(post_maximal_editor_width) {
-               edit_pane.set_position (post_maximal_pane_position -
+       if (post_maximal_editor_width) {
+               edit_pane.set_position (post_maximal_horizontal_pane_position -
                        abs(post_maximal_editor_width - pre_maximal_editor_width));
        } else {
-               edit_pane.set_position (post_maximal_pane_position);
+               edit_pane.set_position (post_maximal_horizontal_pane_position);
+       }
+
+       if (post_maximal_editor_height) {
+               editor_summary_pane.set_position (post_maximal_vertical_pane_position -
+                       abs(post_maximal_editor_height - pre_maximal_editor_height));
+       } 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
 Editor::restore_editing_space ()
 {
-       // user changed width of pane during fullscreen
+       // user changed width/height of panes during fullscreen
 
-       if(post_maximal_pane_position != edit_pane.get_position()) {
-               post_maximal_pane_position = edit_pane.get_position();
+       if (post_maximal_horizontal_pane_position != edit_pane.get_position()) {
+               post_maximal_horizontal_pane_position = edit_pane.get_position();
        }
 
+       if (post_maximal_vertical_pane_position != editor_summary_pane.get_position()) {
+               post_maximal_vertical_pane_position = editor_summary_pane.get_position();
+       }
+       
        unfullscreen();
 
        _mouse_mode_tearoff->set_visible (true);
        _tools_tearoff->set_visible (true);
+       _zoom_tearoff->set_visible (true);
        post_maximal_editor_width = this->get_width();
+       post_maximal_editor_height = this->get_height();
 
-       edit_pane.set_position (pre_maximal_pane_position + abs(this->get_width() - pre_maximal_editor_width));
+       edit_pane.set_position (pre_maximal_horizontal_pane_position + abs(this->get_width() - pre_maximal_editor_width));
+       editor_summary_pane.set_position (pre_maximal_vertical_pane_position + abs(this->get_height() - pre_maximal_editor_height));
 }
 
 /**
@@ -4170,7 +4461,7 @@ Editor::on_key_release_event (GdkEventKey* ev)
  *  @param frame New x origin.
  */
 void
-Editor::reset_x_origin (nframes64_t frame)
+Editor::reset_x_origin (framepos_t frame)
 {
        queue_visual_change (frame);
 }
@@ -4188,7 +4479,7 @@ Editor::reset_zoom (double fpu)
 }
 
 void
-Editor::reposition_and_zoom (nframes64_t frame, double fpu)
+Editor::reposition_and_zoom (framepos_t frame, double fpu)
 {
        reset_x_origin (frame);
        reset_zoom (fpu);
@@ -4306,7 +4597,7 @@ Editor::set_frames_per_unit (double fpu)
           of frames into an 800 pixel wide space.
        */
 
-       if (max_frames / fpu < 800.0) {
+       if (max_framepos / fpu < 800.0) {
                return;
        }
 
@@ -4322,7 +4613,7 @@ Editor::post_zoom ()
 {
        // convert fpu to frame count
 
-       nframes64_t frames = (nframes64_t) floor (frames_per_unit * _canvas_width);
+       framepos_t frames = (framepos_t) floor (frames_per_unit * _canvas_width);
 
        if (frames_per_unit != zoom_range_clock.current_duration()) {
                zoom_range_clock.set (frames);
@@ -4349,7 +4640,7 @@ Editor::post_zoom ()
 }
 
 void
-Editor::queue_visual_change (nframes64_t where)
+Editor::queue_visual_change (framepos_t where)
 {
        pending_visual_change.add (VisualChange::TimeOrigin);
        pending_visual_change.time_origin = where;
@@ -4441,11 +4732,11 @@ Editor::sort_track_selection (TrackViewList* sel)
        }
 }
 
-nframes64_t
+framepos_t
 Editor::get_preferred_edit_position (bool ignore_playhead)
 {
        bool ignored;
-       nframes64_t where = 0;
+       framepos_t where = 0;
        EditPoint ep = _edit_point;
 
        if (entered_marker) {
@@ -4490,7 +4781,7 @@ Editor::get_preferred_edit_position (bool ignore_playhead)
 }
 
 void
-Editor::set_loop_range (nframes64_t start, nframes64_t end, string cmd)
+Editor::set_loop_range (framepos_t start, framepos_t end, string cmd)
 {
        if (!_session) return;
 
@@ -4499,7 +4790,7 @@ 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);
@@ -4517,7 +4808,7 @@ Editor::set_loop_range (nframes64_t start, nframes64_t end, string cmd)
 }
 
 void
-Editor::set_punch_range (nframes64_t start, nframes64_t end, string cmd)
+Editor::set_punch_range (framepos_t start, framepos_t end, string cmd)
 {
        if (!_session) return;
 
@@ -4526,7 +4817,7 @@ 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);
@@ -4550,7 +4841,7 @@ Editor::set_punch_range (nframes64_t start, nframes64_t end, string cmd)
  *  @param ts Tracks to look on; if this is empty, all tracks are examined.
  */
 void
-Editor::get_regions_at (RegionSelection& rs, nframes64_t where, const TrackViewList& ts) const
+Editor::get_regions_at (RegionSelection& rs, framepos_t where, const TrackViewList& ts) const
 {
        const TrackViewList* tracks;
 
@@ -4569,7 +4860,7 @@ Editor::get_regions_at (RegionSelection& rs, nframes64_t where, const TrackViewL
                        if ((tr = rtv->track()) && ((pl = tr->playlist()))) {
 
                                Playlist::RegionList* regions = pl->regions_at (
-                                               (nframes64_t) floor ( (double)where * tr->speed()));
+                                               (framepos_t) floor ( (double)where * tr->speed()));
 
                                for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
                                        RegionView* rv = rtv->view()->find_view (*i);
@@ -4585,7 +4876,7 @@ Editor::get_regions_at (RegionSelection& rs, nframes64_t where, const TrackViewL
 }
 
 void
-Editor::get_regions_after (RegionSelection& rs, nframes64_t where, const TrackViewList& ts) const
+Editor::get_regions_after (RegionSelection& rs, framepos_t where, const TrackViewList& ts) const
 {
        const TrackViewList* tracks;
 
@@ -4604,7 +4895,7 @@ Editor::get_regions_after (RegionSelection& rs, nframes64_t where, const TrackVi
                        if ((tr = rtv->track()) && ((pl = tr->playlist()))) {
 
                                Playlist::RegionList* regions = pl->regions_touched (
-                                               (nframes64_t) floor ( (double)where * tr->speed()), max_frames);
+                                        (framepos_t) floor ( (double)where * tr->speed()), max_framepos);
 
                                for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
 
@@ -4658,7 +4949,7 @@ Editor::get_regions_for_action (RegionSelection& rs, bool allow_entered, bool al
 
                if (!tracks.empty()) {
                        /* now find regions that are at the edit position on those tracks */
-                       nframes64_t const where = get_preferred_edit_position ();
+                       framepos_t const where = get_preferred_edit_position ();
                        get_regions_at (rs, where, tracks);
                }
        }
@@ -4709,16 +5000,6 @@ 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 ()
 {
@@ -4830,12 +5111,6 @@ Editor::region_view_added (RegionView *)
        _summary->set_dirty ();
 }
 
-void
-Editor::streamview_height_changed ()
-{
-       _summary->set_dirty ();
-}
-
 TimeAxisView*
 Editor::axis_view_from_route (boost::shared_ptr<Route> r) const
 {
@@ -4899,7 +5174,6 @@ Editor::handle_new_route (RouteList& routes)
                rtv->effective_gain_display ();
 
                rtv->view()->RegionViewAdded.connect (sigc::mem_fun (*this, &Editor::region_view_added));
-               rtv->view()->HeightChanged.connect (sigc::mem_fun (*this, &Editor::streamview_height_changed));
        }
 
        _routes->routes_added (new_views);
@@ -4922,14 +5196,22 @@ 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;
@@ -4941,7 +5223,6 @@ 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 ();
@@ -5004,12 +5285,13 @@ 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;
@@ -5079,6 +5361,16 @@ 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 ()
 {
@@ -5104,28 +5396,70 @@ Editor::check_step_edit ()
        return true; // do it again, till we stop
 }
 
-void
-Editor::horizontal_scroll_left ()
+bool
+Editor::horizontal_scroll_left_press ()
 {
+       ++_scroll_callbacks;
+       
+       if (_scroll_connection.connected() && _scroll_callbacks < 5) {
+               /* delay the first auto-repeat */
+               return true;
+       }
+               
        double x = leftmost_position() - current_page_frames() / 5;
        if (x < 0) {
                x = 0;
        }
        
        reset_x_origin (x);
+
+       /* do hacky auto-repeat */
+       if (!_scroll_connection.connected ()) {
+               _scroll_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_left_press), 100);
+               _scroll_callbacks = 0;
+       }
+
+       return true;
 }
 
 void
-Editor::horizontal_scroll_right ()
+Editor::horizontal_scroll_left_release ()
+{
+       _scroll_connection.disconnect ();
+}
+
+bool
+Editor::horizontal_scroll_right_press ()
 {
+       ++_scroll_callbacks;
+       
+       if (_scroll_connection.connected() && _scroll_callbacks < 5) {
+               /* delay the first auto-repeat */
+               return true;
+       }
+
        reset_x_origin (leftmost_position() + current_page_frames() / 5);
+
+       /* do hacky auto-repeat */
+       if (!_scroll_connection.connected ()) {
+               _scroll_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_right_press), 100);
+               _scroll_callbacks = 0;
+       }
+
+       return true;
+}
+
+void
+Editor::horizontal_scroll_right_release ()
+{
+       _scroll_connection.disconnect ();
 }
 
 /** Queue a change for the Editor viewport x origin to follow the playhead */
 void
 Editor::reset_x_origin_to_follow_playhead ()
 {
-       nframes64_t const frame = playhead_cursor->current_frame;
+       framepos_t const frame = playhead_cursor->current_frame;
 
        if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 
@@ -5141,7 +5475,7 @@ Editor::reset_x_origin_to_follow_playhead ()
                                                
                        if (frame < leftmost_frame) {
                                /* moving left */
-                               nframes64_t l = 0;
+                               framepos_t l = 0;
                                if (_session->transport_rolling()) {
                                        /* rolling; end up with the playhead at the right of the page */
                                        l = frame - current_page_frames ();
@@ -5195,7 +5529,7 @@ Editor::super_rapid_screen_update ()
 
        /* PLAYHEAD AND VIEWPORT */
 
-       nframes64_t const frame = _session->audible_frame();
+       framepos_t const frame = _session->audible_frame();
 
        /* There are a few reasons why we might not update the playhead / viewport stuff:
         *
@@ -5329,3 +5663,58 @@ 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);
+       }
+}
+
+void
+Editor::setup_fade_images ()
+{
+       _fade_in_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("crossfade-in-linear")));
+       _fade_in_images[FadeFast] = new Gtk::Image (get_icon_path (X_("crossfade-in-short-cut")));
+       _fade_in_images[FadeLogB] = new Gtk::Image (get_icon_path (X_("crossfade-in-slow-cut")));
+       _fade_in_images[FadeLogA] = new Gtk::Image (get_icon_path (X_("crossfade-in-fast-cut")));
+       _fade_in_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("crossfade-in-long-cut")));
+
+       _fade_out_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("crossfade-out-linear")));
+       _fade_out_images[FadeFast] = new Gtk::Image (get_icon_path (X_("crossfade-out-short-cut")));
+       _fade_out_images[FadeLogB] = new Gtk::Image (get_icon_path (X_("crossfade-out-slow-cut")));
+       _fade_out_images[FadeLogA] = new Gtk::Image (get_icon_path (X_("crossfade-out-fast-cut")));
+       _fade_out_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("crossfade-out-long-cut")));
+}
+