change design for how certain region list items operate if there are multiple regions...
[ardour.git] / gtk2_ardour / editor.cc
index 6ed5561804fa835e5611919365ba47c2dfd2d99e..6514f4665aee8d7e005cc3bd69227142cad5797f 100644 (file)
@@ -25,6 +25,8 @@
 #include <string>
 #include <algorithm>
 
+#include <boost/none.hpp>
+
 #include <sigc++/bind.h>
 
 #include <pbd/convert.h>
 #include <ardour/location.h>
 #include <ardour/audioplaylist.h>
 #include <ardour/audioregion.h>
-#include <ardour/region.h>
+#include <ardour/midi_region.h>
 #include <ardour/session_route.h>
+#include <ardour/session_directory.h>
+#include <ardour/session_state_utils.h>
 #include <ardour/tempo.h>
 #include <ardour/utils.h>
+#include <ardour/profile.h>
 
 #include <control_protocol/control_protocol.h>
 
 #include "crossfade_edit.h"
 #include "canvas_impl.h"
 #include "actions.h"
+#include "sfdb_ui.h"
 #include "gui_thread.h"
+#include "simpleline.h"
+#include "rhythm_ferret.h"
+#include "actions.h"
 
 #ifdef FFT_ANALYSIS
 #include "analysis_window.h"
@@ -104,7 +113,6 @@ const double Editor::timebar_height = 15.0;
 #include "editor_xpms"
 
 static const gchar *_snap_type_strings[] = {
-       N_("None"),
        N_("CD Frames"),
        N_("SMPTE Frames"),
        N_("SMPTE Seconds"),
@@ -119,7 +127,6 @@ static const gchar *_snap_type_strings[] = {
        N_("Beats"),
        N_("Bars"),
        N_("Marks"),
-       N_("Edit Cursor"),
        N_("Region starts"),
        N_("Region ends"),
        N_("Region syncs"),
@@ -128,19 +135,40 @@ static const gchar *_snap_type_strings[] = {
 };
 
 static const gchar *_snap_mode_strings[] = {
-       N_("Normal"),
+       N_("No Grid"),
+       N_("Grid"),
        N_("Magnetic"),
        0
 };
 
+static const gchar *_edit_point_strings[] = {
+       N_("Playhead"),
+       N_("Marker"),
+       N_("Mouse"),
+       0
+};
+
 static const gchar *_zoom_focus_strings[] = {
        N_("Left"),
        N_("Right"),
        N_("Center"),
        N_("Playhead"),
-       N_("Edit Cursor"),
+       N_("Mouse"),
+       N_("Active Mark"),
+       0
+};
+
+#ifdef USE_RUBBERBAND
+static const gchar *_rb_opt_strings[] = {
+       N_("Mushy"),
+       N_("Smooth"),
+       N_("Balanced multitimbral mixture"),
+       N_("Unpitched percussion with stable notes"),
+       N_("Crisp monophonic instrumental"),
+       N_("Unpitched solo percussion"),
        0
 };
+#endif
 
 /* Soundfile  drag-n-drop */
 
@@ -148,12 +176,18 @@ Gdk::Cursor* Editor::cross_hair_cursor = 0;
 Gdk::Cursor* Editor::selector_cursor = 0;
 Gdk::Cursor* Editor::trimmer_cursor = 0;
 Gdk::Cursor* Editor::grabber_cursor = 0;
+Gdk::Cursor* Editor::grabber_edit_point_cursor = 0;
 Gdk::Cursor* Editor::zoom_cursor = 0;
 Gdk::Cursor* Editor::time_fx_cursor = 0;
 Gdk::Cursor* Editor::fader_cursor = 0;
 Gdk::Cursor* Editor::speaker_cursor = 0;
+Gdk::Cursor* Editor::midi_pencil_cursor = 0;
+Gdk::Cursor* Editor::midi_select_cursor = 0;
+Gdk::Cursor* Editor::midi_resize_cursor = 0;
+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;
 
 void
 show_me_the_size (Requisition* r, const char* what)
@@ -161,18 +195,13 @@ show_me_the_size (Requisition* r, const char* what)
        cerr << "size of " << what << " = " << r->width << " x " << r->height << endl;
 }
 
-void 
-check_adjustment (Gtk::Adjustment* adj)
-{
-       cerr << "CHANGE adj  = " 
-            << adj->get_lower () <<  ' '
-            << adj->get_upper () <<  ' '
-            << adj->get_value () <<  ' '
-            << adj->get_step_increment () <<  ' '
-            << adj->get_page_increment () <<  ' '
-            << adj->get_page_size () <<  ' '
-            << endl;
-
+void
+DragInfo::clear_copied_locations ()
+{
+       for (list<Location*>::iterator i = copied_locations.begin(); i != copied_locations.end(); ++i) {
+               delete *i;
+       }
+       copied_locations.clear ();
 }
 
 Editor::Editor ()
@@ -182,14 +211,14 @@ Editor::Editor ()
          minsec_label (_("Mins:Secs")),
          bbt_label (_("Bars:Beats")),
          smpte_label (_("Timecode")),
-         frame_label (_("Frames")),
+         frame_label (_("Samples")),
          tempo_label (_("Tempo")),
          meter_label (_("Meter")),
          mark_label (_("Location Markers")),
          range_mark_label (_("Range Markers")),
          transport_mark_label (_("Loop/Punch Ranges")),
-
-         edit_packer (3, 3, false),
+         cd_mark_label (_("CD Markers")),
+         edit_packer (3, 4, true),
 
          /* the values here don't matter: layout widgets
             reset them as needed.
@@ -200,7 +229,7 @@ Editor::Editor ()
 
          /* tool bar related */
 
-         edit_cursor_clock (X_("editcursor"), false, X_("EditCursorClock"), true),
+         edit_point_clock (X_("editpoint"), false, X_("EditPointClock"), true),
          zoom_range_clock (X_("zoomrange"), false, X_("ZoomRangeClock"), true, true),
          
          toolbar_selection_clock_table (2,3),
@@ -214,7 +243,8 @@ Editor::Editor ()
 
          /* nudge */
 
-         nudge_clock (X_("nudge"), false, X_("NudgeClock"), true, true)
+         nudge_clock (X_("nudge"), false, X_("NudgeClock"), true, true),
+         meters_running(false)
 
 {
        constructed = false;
@@ -224,41 +254,45 @@ Editor::Editor ()
        PublicEditor::_instance = this;
 
        session = 0;
+       _have_idled = false;
 
-       selection = new Selection;
-       cut_buffer = new Selection;
+       selection = new Selection (this);
+       cut_buffer = new Selection (this);
 
        selection->TimeChanged.connect (mem_fun(*this, &Editor::time_selection_changed));
        selection->TracksChanged.connect (mem_fun(*this, &Editor::track_selection_changed));
        selection->RegionsChanged.connect (mem_fun(*this, &Editor::region_selection_changed));
        selection->PointsChanged.connect (mem_fun(*this, &Editor::point_selection_changed));
+       selection->MarkersChanged.connect (mem_fun(*this, &Editor::marker_selection_changed));
 
        clicked_regionview = 0;
        clicked_axisview = 0;
        clicked_routeview = 0;
        clicked_crossfadeview = 0;
        clicked_control_point = 0;
-       latest_regionview = 0;
        last_update_frame = 0;
        drag_info.item = 0;
        current_mixer_strip = 0;
        current_bbt_points = 0;
-
-       snap_type_strings = I18N (_snap_type_strings);
-       snap_mode_strings = I18N (_snap_mode_strings);
-       zoom_focus_strings = I18N(_zoom_focus_strings);
-
-       snap_type = SnapToFrame;
-       set_snap_to (snap_type);
-       snap_mode = SnapNormal;
-       set_snap_mode (snap_mode);
+       
+       snap_type_strings =  I18N (_snap_type_strings);
+       snap_mode_strings =  I18N (_snap_mode_strings);
+       zoom_focus_strings = I18N (_zoom_focus_strings);
+       edit_point_strings = I18N (_edit_point_strings);
+#ifdef USE_RUBBERBAND
+       rb_opt_strings = I18N (_rb_opt_strings);
+#endif
+       
        snap_threshold = 5.0;
        bbt_beat_subdivision = 4;
        canvas_width = 0;
        canvas_height = 0;
+       last_autoscroll_x = 0;
+       last_autoscroll_y = 0;
        autoscroll_active = false;
        autoscroll_timeout_tag = -1;
        interthread_progress_window = 0;
+       logo_item = 0;
 
 #ifdef FFT_ANALYSIS
        analysis_window = 0;
@@ -269,14 +303,16 @@ Editor::Editor ()
        _show_waveforms = true;
        _show_waveforms_recording = true;
        first_action_message = 0;
-       export_dialog = 0;
        show_gain_after_trim = false;
        ignore_route_list_reorder = false;
        no_route_list_redisplay = false;
        verbose_cursor_on = true;
        route_removal = false;
        show_automatic_regions_in_region_list = true;
-       region_list_sort_type = (Editing::RegionListSortType) 0; 
+       last_item_entered = 0;
+       last_item_entered_n = 0;
+
+       region_list_sort_type = (Editing::RegionListSortType) 0;
        have_pending_keyboard_selection = false;
        _follow_playhead = true;
        _xfade_visibility = true;
@@ -294,33 +330,53 @@ Editor::Editor ()
        new_transport_marker_menu = 0;
        editor_mixer_strip_width = Wide;
        show_editor_mixer_when_tracks_arrive = false;
+       region_edit_menu_split_multichannel_item = 0;
+       region_edit_menu_split_item = 0;
        temp_location = 0;
        leftmost_frame = 0;
        ignore_mouse_mode_toggle = false;
+       ignore_midi_edit_mode_toggle = false;
        current_stepping_trackview = 0;
        entered_track = 0;
        entered_regionview = 0;
+       entered_marker = 0;
        clear_entered_track = false;
        _new_regionviews_show_envelope = false;
-       current_timestretch = 0;
+       current_timefx = 0;
        in_edit_group_row_change = false;
        last_canvas_frame = 0;
-       edit_cursor = 0;
        playhead_cursor = 0;
        button_release_can_deselect = true;
-       canvas_idle_queued = false;
        _dragging_playhead = false;
+       _dragging_edit_point = false;
        _dragging_hscrollbar = false;
-
-       location_marker_color = color_map[cLocationMarker];
-       location_range_color = color_map[cLocationRange];
-       location_cd_marker_color = color_map[cLocationCDMarker];
-       location_loop_color = color_map[cLocationLoop];
-       location_punch_color = color_map[cLocationPunch];
+       select_new_marker = false;
+       zoomed_to_region = false;
+       rhythm_ferret = 0;
+       allow_vertical_scroll = false;
+       no_save_visual = false;
+       need_resize_line = false;
+       resize_line_y = 0;
+       old_resize_line_y = -1;
+       no_region_list_redisplay = false;
+       resize_idle_id = -1;
+
+       _scrubbing = false;
+       scrubbing_direction = 0;
+
+       sfbrowser = 0;
+       ignore_route_order_sync = false;
+
+       location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
+       location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
+       location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
+       location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
+       location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
 
        range_marker_drag_rect = 0;
        marker_drag_line = 0;
-       
+       tempo_map_change_idle_handler_id = -1;
+       set_midi_edit_mode (MidiEditPencil, true);
        set_mouse_mode (MouseObject, true);
 
        frames_per_unit = 2048; /* too early to use reset_zoom () */
@@ -334,16 +390,10 @@ Editor::Editor ()
        initialize_canvas ();
 
        edit_controls_vbox.set_spacing (0);
-       horizontal_adjustment.signal_value_changed().connect (mem_fun(*this, &Editor::canvas_horizontally_scrolled));
-       vertical_adjustment.signal_value_changed().connect (mem_fun(*this, &Editor::tie_vertical_scrolling));
-       
-       track_canvas.set_hadjustment (horizontal_adjustment);
-       track_canvas.set_vadjustment (vertical_adjustment);
-       time_canvas.set_hadjustment (horizontal_adjustment);
+       horizontal_adjustment.signal_value_changed().connect (mem_fun(*this, &Editor::scroll_canvas_horizontally), false);
+       vertical_adjustment.signal_value_changed().connect (mem_fun(*this, &Editor::tie_vertical_scrolling), true);
+       track_canvas->signal_map_event().connect (mem_fun (*this, &Editor::track_canvas_map_handler));
 
-       track_canvas.signal_map_event().connect (mem_fun (*this, &Editor::track_canvas_map_handler));
-       time_canvas.signal_map_event().connect (mem_fun (*this, &Editor::time_canvas_map_handler));
-       
        controls_layout.add (edit_controls_vbox);
        controls_layout.set_name ("EditControlsBase");
        controls_layout.add_events (Gdk::SCROLL_MASK);
@@ -364,17 +414,24 @@ Editor::Editor ()
 
        build_cursors ();
        setup_toolbar ();
+       setup_midi_toolbar ();
 
-       edit_cursor_clock.ValueChanged.connect (mem_fun(*this, &Editor::edit_cursor_clock_changed));
+       edit_point_clock.ValueChanged.connect (mem_fun(*this, &Editor::edit_point_clock_changed));
        
+       ArdourCanvas::Canvas* time_pad = manage(new ArdourCanvas::Canvas());
+       ArdourCanvas::SimpleLine* pad_line_1 = manage(new ArdourCanvas::SimpleLine(*time_pad->root(),
+                       0.0, 1.0, 100.0, 1.0));
+       pad_line_1->property_color_rgba() = 0xFF0000FF;
+       pad_line_1->show();
+       time_pad->show();
+
        time_canvas_vbox.pack_start (*_ruler_separator, false, false);
        time_canvas_vbox.pack_start (*minsec_ruler, false, false);
        time_canvas_vbox.pack_start (*smpte_ruler, false, false);
        time_canvas_vbox.pack_start (*frames_ruler, false, false);
        time_canvas_vbox.pack_start (*bbt_ruler, false, false);
-       time_canvas_vbox.pack_start (time_canvas, true, true);
-       time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars) + 2);
-
+       //time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars) + 2);
+       time_canvas_vbox.set_size_request (-1, -1);
        bbt_label.set_name ("EditorTimeButton");
        bbt_label.set_size_request (-1, (int)timebar_height);
        bbt_label.set_alignment (1.0, 0.5);
@@ -391,6 +448,7 @@ Editor::Editor ()
        frame_label.set_size_request (-1, (int)timebar_height);
        frame_label.set_alignment (1.0, 0.5);
        frame_label.set_padding (5,0);
+
        tempo_label.set_name ("EditorTimeButton");
        tempo_label.set_size_request (-1, (int)timebar_height);
        tempo_label.set_alignment (1.0, 0.5);
@@ -403,6 +461,10 @@ Editor::Editor ()
        mark_label.set_size_request (-1, (int)timebar_height);
        mark_label.set_alignment (1.0, 0.5);
        mark_label.set_padding (5,0);
+       cd_mark_label.set_name ("EditorTimeButton");
+       cd_mark_label.set_size_request (-1, (int)timebar_height);
+       cd_mark_label.set_alignment (1.0, 0.5);
+       cd_mark_label.set_padding (5,0);
        range_mark_label.set_name ("EditorTimeButton");
        range_mark_label.set_size_request (-1, (int)timebar_height);
        range_mark_label.set_alignment (1.0, 0.5);
@@ -411,29 +473,31 @@ Editor::Editor ()
        transport_mark_label.set_size_request (-1, (int)timebar_height);
        transport_mark_label.set_alignment (1.0, 0.5);
        transport_mark_label.set_padding (5,0);
+
+       ruler_label_vbox.pack_start (minsec_label, false, false);
+       ruler_label_vbox.pack_start (smpte_label, false, false);
+       ruler_label_vbox.pack_start (frame_label, false, false);
+       ruler_label_vbox.pack_start (bbt_label, false, false);
        
-       time_button_vbox.pack_start (minsec_label, false, false);
-       time_button_vbox.pack_start (smpte_label, false, false);
-       time_button_vbox.pack_start (frame_label, false, false);
-       time_button_vbox.pack_start (bbt_label, false, false);
+       ruler_label_event_box.add (ruler_label_vbox);   
+       ruler_label_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
+       ruler_label_event_box.set_name ("TimebarLabelBase");
+       ruler_label_event_box.signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_label_button_release));
+
        time_button_vbox.pack_start (meter_label, false, false);
        time_button_vbox.pack_start (tempo_label, false, false);
        time_button_vbox.pack_start (mark_label, false, false);
 
        time_button_event_box.add (time_button_vbox);
-       
-       time_button_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
        time_button_event_box.set_name ("TimebarLabelBase");
+       time_button_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
        time_button_event_box.signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_label_button_release));
 
-       time_button_frame.add(time_button_event_box);
-       time_button_frame.property_shadow_type() = Gtk::SHADOW_OUT;
-
        /* these enable us to have a dedicated window (for cursor setting, etc.) 
           for the canvas areas.
        */
 
-       track_canvas_event_box.add (track_canvas);
+       track_canvas_event_box.add (*track_canvas);
 
        time_canvas_event_box.add (time_canvas_vbox);
        time_canvas_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
@@ -443,17 +507,36 @@ Editor::Editor ()
        edit_packer.set_homogeneous (false);
        edit_packer.set_border_width (0);
        edit_packer.set_name ("EditorWindow");
+
+#ifndef THE_OLD_WAY
+
+       edit_packer.attach (ruler_label_event_box,   0, 1, 0, 1,    FILL,        SHRINK, 0, 0);
+
+       edit_packer.attach (time_button_event_box,   0, 1, 1, 2,    FILL,        SHRINK, 0, 0);
+       edit_packer.attach (time_canvas_event_box,   1, 2, 0, 1,    FILL|EXPAND, FILL, 0, 0);
+
+       edit_packer.attach (controls_layout,         0, 1, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
+       edit_packer.attach (track_canvas_event_box,  1, 2, 1, 3,    FILL|EXPAND, FILL|EXPAND, 0, 0);
+
+       edit_packer.attach (zoom_box,                0, 1, 3, 4,    FILL,         FILL, 0, 0);
+       edit_packer.attach (edit_hscrollbar,         1, 2, 3, 4,    FILL|EXPAND,  FILL, 0, 0);
+
+       edit_packer.attach (edit_vscrollbar,         3, 4, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
+
+#else
        
-       edit_packer.attach (edit_vscrollbar,         3, 4, 1, 2,    FILL,        FILL|EXPAND, 0, 0);
+       edit_packer.attach (edit_vscrollbar,         0, 1, 0, 4,    FILL,        FILL|EXPAND, 0, 0);
 
-       edit_packer.attach (time_button_frame,       0, 2, 0, 1,    FILL,        FILL, 0, 0);
+       edit_packer.attach (ruler_label_event_box,   1, 2, 0, 1,    FILL,        SHRINK, 0, 0);
+       edit_packer.attach (time_button_event_box,   1, 2, 1, 2,    FILL,        SHRINK, 0, 0);
        edit_packer.attach (time_canvas_event_box,   2, 3, 0, 1,    FILL|EXPAND, FILL, 0, 0);
 
-       edit_packer.attach (controls_layout,         1, 2, 1, 2,    FILL,        FILL|EXPAND, 0, 0);
-       edit_packer.attach (track_canvas_event_box,  2, 3, 1, 2,    FILL|EXPAND, FILL|EXPAND, 0, 0);
+       edit_packer.attach (controls_layout,         1, 2, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
+       edit_packer.attach (track_canvas_event_box,  2, 3, 1, 3,    FILL|EXPAND, FILL|EXPAND, 0, 0);
 
-       edit_packer.attach (zoom_box,                1, 2, 2, 3,    FILL,         FILL, 0, 0);
-       edit_packer.attach (edit_hscrollbar,         2, 3, 2, 3,    FILL|EXPAND,  FILL, 0, 0);
+       edit_packer.attach (zoom_box,                1, 2, 3, 4,    FILL,         FILL, 0, 0);
+       edit_packer.attach (edit_hscrollbar,         2, 3, 3, 4,    FILL|EXPAND,  FILL, 0, 0);
+#endif
 
        bottom_hbox.set_border_width (2);
        bottom_hbox.set_spacing (3);
@@ -466,14 +549,15 @@ Editor::Editor ()
        route_list_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
        route_list_display.set_headers_visible (true);
        route_list_display.set_name ("TrackListDisplay");
-       route_list_display.get_selection()->set_mode (SELECTION_NONE);
+       route_list_display.get_selection()->set_mode (SELECTION_SINGLE);
        route_list_display.set_reorderable (true);
        route_list_display.set_size_request (100,-1);
+       route_list_display.add_object_drag (route_display_columns.route.index(), "routes");
 
        CellRendererToggle* route_list_visible_cell = dynamic_cast<CellRendererToggle*>(route_list_display.get_column_cell_renderer (0));
        route_list_visible_cell->property_activatable() = true;
        route_list_visible_cell->property_radio() = false;
-       
+
        route_display_model->signal_row_deleted().connect (mem_fun (*this, &Editor::route_list_delete));
        route_display_model->signal_row_changed().connect (mem_fun (*this, &Editor::route_list_change));
 
@@ -553,6 +637,10 @@ Editor::Editor ()
 
        region_list_display.set_size_request (100, -1);
        region_list_display.set_name ("RegionListDisplay");
+       /* Try to prevent single mouse presses from initiating edits.
+          This relies on a hack in gtktreeview.c:gtk_treeview_button_press()
+       */
+       region_list_display.set_data ("mouse-edits-require-mod1", (gpointer) 0x1);
 
        region_list_model = TreeStore::create (region_list_columns);
        region_list_model->set_sort_func (0, mem_fun (*this, &Editor::region_list_sorter));
@@ -560,7 +648,16 @@ Editor::Editor ()
 
        region_list_display.set_model (region_list_model);
        region_list_display.append_column (_("Regions"), region_list_columns.name);
-       region_list_display.set_headers_visible (false);
+       region_list_display.append_column (_("Start"), region_list_columns.start);
+       region_list_display.append_column (_("End"), region_list_columns.end);
+       region_list_display.append_column (_("Length"), region_list_columns.length);
+       region_list_display.append_column (_("Used"), region_list_columns.used);
+       region_list_display.append_column (_("Path to parent file"), region_list_columns.path);
+       region_list_display.set_headers_visible (true);
+
+       CellRendererText* region_name_cell = dynamic_cast<CellRendererText*>(region_list_display.get_column_cell_renderer (0));
+       region_name_cell->property_editable() = true;
+       region_name_cell->signal_edited().connect (mem_fun (*this, &Editor::region_name_edit));
 
        region_list_display.get_selection()->set_select_function (mem_fun (*this, &Editor::region_list_selection_filter));
        
@@ -571,7 +668,7 @@ Editor::Editor ()
        
        region_list_display.get_selection()->set_mode (SELECTION_MULTIPLE);
        region_list_display.add_object_drag (region_list_columns.region.index(), "regions");
-
+       
        /* setup DnD handling */
        
        list<TargetEntry> region_list_target_table;
@@ -584,8 +681,8 @@ Editor::Editor ()
        region_list_display.signal_drag_data_received().connect (mem_fun(*this, &Editor::region_list_display_drag_data_received));
 
        region_list_scroller.add (region_list_display);
-       region_list_scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
-
+       region_list_scroller.set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
+       
        region_list_display.signal_key_press_event().connect (mem_fun(*this, &Editor::region_list_display_key_press));
        region_list_display.signal_key_release_event().connect (mem_fun(*this, &Editor::region_list_display_key_release));
        region_list_display.signal_button_press_event().connect (mem_fun(*this, &Editor::region_list_display_button_press), false);
@@ -593,6 +690,9 @@ Editor::Editor ()
        region_list_display.get_selection()->signal_changed().connect (mem_fun(*this, &Editor::region_list_selection_changed));
        // region_list_display.signal_popup_menu().connect (bind (mem_fun (*this, &Editor::show_region_list_display_context_menu), 1, 0));
        
+       ARDOUR_UI::instance()->secondary_clock.mode_changed.connect (mem_fun(*this, &Editor::redisplay_regions));
+       ARDOUR::Region::RegionPropertyChanged.connect (mem_fun(*this, &Editor::update_region_row));
+       
        named_selection_scroller.add (named_selection_display);
        named_selection_scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
 
@@ -628,24 +728,28 @@ Editor::Editor ()
 
        nlabel = manage (new Label (_("Regions")));
        nlabel->set_angle (-90);
-               the_notebook.append_page (region_list_scroller, *nlabel);
+       the_notebook.append_page (region_list_scroller, *nlabel);
        nlabel = manage (new Label (_("Tracks/Busses")));
        nlabel->set_angle (-90);
-               the_notebook.append_page (route_list_scroller, *nlabel);
+       the_notebook.append_page (route_list_scroller, *nlabel);
        nlabel = manage (new Label (_("Snapshots")));
        nlabel->set_angle (-90);
        the_notebook.append_page (snapshot_display_scroller, *nlabel);
        nlabel = manage (new Label (_("Edit Groups")));
        nlabel->set_angle (-90);
        the_notebook.append_page (*edit_group_display_packer, *nlabel);
-       nlabel = manage (new Label (_("Chunks")));
-       nlabel->set_angle (-90);
-       the_notebook.append_page (named_selection_scroller, *nlabel);
+       
+       if (!Profile->get_sae()) {
+               nlabel = manage (new Label (_("Chunks")));
+               nlabel->set_angle (-90);
+               the_notebook.append_page (named_selection_scroller, *nlabel);
+       }
 
        the_notebook.set_show_tabs (true);
        the_notebook.set_scrollable (true);
        the_notebook.popup_enable ();
        the_notebook.set_tab_pos (Gtk::POS_RIGHT);
+       the_notebook.show_all ();
 
        post_maximal_editor_width = 0;
        post_maximal_pane_position = 0;
@@ -654,7 +758,8 @@ Editor::Editor ()
        
        edit_pane.signal_size_allocate().connect (bind (mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
 
-       top_hbox.pack_start (toolbar_frame, true, true);
+       top_hbox.pack_start (toolbar_frame, false, true);
+       top_hbox.pack_start (midi_toolbar_frame, false, true);
 
        HBox *hbox = manage (new HBox);
        hbox->pack_start (edit_pane, true, true);
@@ -667,12 +772,21 @@ Editor::Editor ()
        set_name ("EditorWindow");
        add_accel_group (ActionManager::ui_manager->get_accel_group());
 
+       status_bar_hpacker.show ();
+
+       vpacker.pack_end (status_bar_hpacker, false, false);
        vpacker.pack_end (global_hpacker, true, true);
 
        /* register actions now so that set_state() can find them and set toggles/checks etc */
        
        register_actions ();
-       
+
+       snap_type = SnapToBeat;
+       set_snap_to (snap_type);
+       snap_mode = SnapOff;
+       set_snap_mode (snap_mode);
+       set_edit_point_preference (EditAtMouse, true);
+
        XMLNode* node = ARDOUR_UI::instance()->editor_settings();
        set_state (*node);
 
@@ -733,8 +847,10 @@ Editor::Editor ()
        ControlProtocol::ZoomIn.connect (bind (mem_fun (*this, &Editor::temporal_zoom_step), false));
        ControlProtocol::ZoomOut.connect (bind (mem_fun (*this, &Editor::temporal_zoom_step), true));
        ControlProtocol::ScrollTimeline.connect (mem_fun (*this, &Editor::control_scroll));
+       BasicUI::AccessAction.connect (mem_fun (*this, &Editor::access_action));
 
        Config->ParameterChanged.connect (mem_fun (*this, &Editor::parameter_changed));
+       Route::SyncOrderKeys.connect (mem_fun (*this, &Editor::sync_order_keys));
 
        constructed = true;
        instant_save ();
@@ -743,8 +859,7 @@ Editor::Editor ()
 Editor::~Editor()
 {
 #ifdef WITH_CMT
-       if(image_socket_listener)
-       {
+       if(image_socket_listener) {
                if(image_socket_listener->is_connected())
                {
                        image_socket_listener->close_connection() ;
@@ -754,6 +869,11 @@ Editor::~Editor()
                image_socket_listener = 0 ;
        }
 #endif
+
+       if (track_canvas) {
+               delete track_canvas;
+               track_canvas = 0;
+       }
 }
 
 void
@@ -810,8 +930,10 @@ Editor::set_entered_track (TimeAxisView* tav)
 void
 Editor::show_window ()
 {
-       show_all ();
-       present ();
+       show_all_children ();
+       
+       /* re-hide editor list if necessary */
+       editor_list_button_toggled ();
 
        /* now reset all audio_time_axis heights, because widgets might need
           to be re-hidden
@@ -823,15 +945,8 @@ Editor::show_window ()
                tv = (static_cast<TimeAxisView*>(*i));
                tv->reset_height ();
        }
-}
 
-void
-Editor::tie_vertical_scrolling ()
-{
-       double y1 = vertical_adjustment.get_value();
-       controls_layout.get_vadjustment()->set_value (y1);
-       playhead_cursor->set_y_axis(y1);
-       edit_cursor->set_y_axis(y1);
+       present ();
 }
 
 void
@@ -842,20 +957,32 @@ Editor::instant_save ()
        }
 
        if (session) {
-               session->add_instant_xml(get_state(), session->path());
+               session->add_instant_xml(get_state());
        } else {
-               Config->add_instant_xml(get_state(), get_user_ardour_path());
+               Config->add_instant_xml(get_state());
        }
 }
 
 void
-Editor::edit_cursor_clock_changed()
+Editor::edit_point_clock_changed()
 {
-       if (edit_cursor->current_frame != edit_cursor_clock.current_time()) {
-               edit_cursor->set_position (edit_cursor_clock.current_time());
+       if (_dragging_edit_point) {
+               return;
+       }
+
+       if (selection->markers.empty()) {
+               return;
+       }
+
+       bool ignored;
+       Location* loc = find_location_from_marker (selection->markers.front(), ignored);
+
+       if (!loc) {
+               return;
        }
-}
 
+       loc->move_to (edit_point_clock.current_time());
+}
 
 void
 Editor::zoom_adjustment_changed ()
@@ -868,10 +995,10 @@ Editor::zoom_adjustment_changed ()
 
        if (fpu < 1.0) {
                fpu = 1.0;
-               zoom_range_clock.set ((nframes_t) floor (fpu * canvas_width));
+               zoom_range_clock.set ((nframes64_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 ((nframes_t) floor (fpu * canvas_width));
+               zoom_range_clock.set ((nframes64_t) floor (fpu * canvas_width));
        }
        
        temporal_zoom (fpu);
@@ -887,43 +1014,89 @@ Editor::control_scroll (float fraction)
        }
 
        double step = fraction * current_page_frames();
-       nframes_t target;
 
-       if ((fraction < 0.0f) && (session->transport_frame() < (nframes_t) fabs(step))) {
-               target = 0;
-       } else if ((fraction > 0.0f) && (max_frames - session->transport_frame() < step)) {
-               target = (max_frames - (current_page_frames()*2)); // allow room for slop in where the PH is on the screen
+       /*
+               _control_scroll_target is an optional<T>
+       
+               it acts like a pointer to an nframes64_t, with
+               a operator conversion to boolean to check
+               that it has a value could possibly use
+               playhead_cursor->current_frame to store the
+               value and a boolean in the class to know
+               when it's out of date
+       */
+
+       if (!_control_scroll_target) {
+               _control_scroll_target = session->transport_frame();
+               _dragging_playhead = true;
+       }
+
+       if ((fraction < 0.0f) && (*_control_scroll_target < (nframes64_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 {
-               target = (session->transport_frame() + (nframes_t) floor ((fraction * current_page_frames())));
+               *_control_scroll_target += (nframes64_t) floor (step);
        }
 
        /* move visuals, we'll catch up with it later */
 
-       playhead_cursor->set_position (target);
-
-       if (target > (current_page_frames() / 2)) {
+       playhead_cursor->set_position (*_control_scroll_target);
+       UpdateAllTransportClocks (*_control_scroll_target);
+       
+       if (*_control_scroll_target > (current_page_frames() / 2)) {
                /* try to center PH in window */
-               reset_x_origin (target - (current_page_frames()/2));
+               reset_x_origin (*_control_scroll_target - (current_page_frames()/2));
        } else {
                reset_x_origin (0);
        }
 
-       /* cancel the existing */
+       /*
+               Now we do a timeout to actually bring the session to the right place
+               according to the playhead. This is to avoid reading disk buffers on every
+               call to control_scroll, which is driven by ScrollTimeline and therefore
+               probably by a control surface wheel which can generate lots of events.
+       */
+       /* cancel the existing timeout */
 
        control_scroll_connection.disconnect ();
 
-       /* add the next one */
+       /* add the next timeout */
 
-       control_scroll_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::deferred_control_scroll), target), 50);
+       control_scroll_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::deferred_control_scroll), *_control_scroll_target), 250);
 }
 
 bool
-Editor::deferred_control_scroll (nframes_t target)
+Editor::deferred_control_scroll (nframes64_t target)
 {
-       session->request_locate (target);
+       session->request_locate (*_control_scroll_target, session->transport_rolling());
+       // reset for next stream
+       _control_scroll_target = boost::none;
+       _dragging_playhead = false;
        return false;
 }
 
+void
+Editor::access_action (std::string action_group, std::string action_item)
+{
+       if (!session) {
+               return;
+       }
+
+       ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::access_action), action_group, action_item));
+
+       cout<< "OSC: Recieved: "<< action_item << endl;
+
+       RefPtr<Action> act;
+       act = ActionManager::get_action( action_group.c_str(), action_item.c_str() );
+
+       if (act) {
+               act->activate();
+       }
+               
+
+}
+
 void
 Editor::on_realize ()
 {
@@ -936,6 +1109,7 @@ Editor::start_scrolling ()
 {
        scroll_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect 
                (mem_fun(*this, &Editor::update_current_screen));
+
 }
 
 void
@@ -945,7 +1119,7 @@ Editor::stop_scrolling ()
 }
 
 void
-Editor::map_position_change (nframes_t frame)
+Editor::map_position_change (nframes64_t frame)
 {
        ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::map_position_change), frame));
 
@@ -958,7 +1132,7 @@ Editor::map_position_change (nframes_t frame)
 }      
 
 void
-Editor::center_screen (nframes_t frame)
+Editor::center_screen (nframes64_t frame)
 {
        double page = canvas_width * frames_per_unit;
 
@@ -971,12 +1145,12 @@ Editor::center_screen (nframes_t frame)
 }
 
 void
-Editor::center_screen_internal (nframes_t frame, float page)
+Editor::center_screen_internal (nframes64_t frame, float page)
 {
        page /= 2;
                
        if (frame > page) {
-               frame -= (nframes_t) page;
+               frame -= (nframes64_t) page;
        } else {
                frame = 0;
        }
@@ -989,15 +1163,16 @@ Editor::handle_new_duration ()
 {
        ENSURE_GUI_THREAD (mem_fun (*this, &Editor::handle_new_duration));
 
-       nframes_t new_end = session->get_maximum_extent() + (nframes_t) floorf (current_page_frames() * 0.10f);
+       nframes64_t new_end = session->get_maximum_extent() + (nframes64_t) floorf (current_page_frames() * 0.10f);
                                  
        if (new_end > last_canvas_frame) {
                last_canvas_frame = new_end;
                horizontal_adjustment.set_upper (last_canvas_frame / frames_per_unit);
-               reset_scrolling_region ();
+               //reset_scrolling_region ();
        }
 
        horizontal_adjustment.set_value (leftmost_frame/frames_per_unit);
+       //cerr << "Editor::handle_new_duration () called ha v:l:u:ps:lcf = " << horizontal_adjustment.get_value() << ":" << horizontal_adjustment.get_lower() << ":" << horizontal_adjustment.get_upper() << ":" << horizontal_adjustment.get_page_size() << ":" << last_canvas_frame << endl;//DEBUG
 }
 
 void
@@ -1039,6 +1214,10 @@ Editor::connect_to_session (Session *t)
 {
        session = t;
 
+       /* there are never any selected regions at startup */
+
+       sensitize_the_right_region_actions (false);
+
        XMLNode* node = ARDOUR_UI::instance()->editor_settings();
        set_state (*node);
 
@@ -1063,7 +1242,7 @@ Editor::connect_to_session (Session *t)
        session_connections.push_back (session->TransportStateChange.connect (mem_fun(*this, &Editor::map_transport_state)));
        session_connections.push_back (session->PositionChanged.connect (mem_fun(*this, &Editor::map_position_change)));
        session_connections.push_back (session->RouteAdded.connect (mem_fun(*this, &Editor::handle_new_route)));
-       session_connections.push_back (session->RegionAdded.connect (mem_fun(*this, &Editor::handle_new_region)));
+       session_connections.push_back (session->RegionsAdded.connect (mem_fun(*this, &Editor::handle_new_regions)));
        session_connections.push_back (session->RegionRemoved.connect (mem_fun(*this, &Editor::handle_region_removed)));
        session_connections.push_back (session->DurationChanged.connect (mem_fun(*this, &Editor::handle_new_duration)));
        session_connections.push_back (session->edit_group_added.connect (mem_fun(*this, &Editor::add_edit_group)));
@@ -1081,10 +1260,17 @@ Editor::connect_to_session (Session *t)
 
        edit_groups_changed ();
 
-       edit_cursor_clock.set_session (session);
+       edit_point_clock.set_session (session);
        zoom_range_clock.set_session (session);
        _playlist_selector->set_session (session);
        nudge_clock.set_session (session);
+       nudge_clock.set (session->frame_rate() * 5); // default of 5 seconds
+
+       playhead_cursor->canvas_item.show ();
+
+       if (rhythm_ferret) {
+               rhythm_ferret->set_session (session);
+       }
 
 #ifdef FFT_ANALYSIS
        if (analysis_window != 0)
@@ -1128,6 +1314,10 @@ Editor::connect_to_session (Session *t)
        session->locations()->StateChanged.connect (mem_fun(*this, &Editor::refresh_location_display_s));
        session->locations()->end_location()->changed.connect (mem_fun(*this, &Editor::end_location_changed));
 
+       if (sfbrowser) {
+               sfbrowser->set_session (session);
+       }
+
        handle_new_duration ();
 
        redisplay_regions ();
@@ -1150,7 +1340,7 @@ Editor::connect_to_session (Session *t)
 
        if (ARDOUR_UI::instance()->session_is_new ()) {
 
-               TreeModel::Children rows = route_display_model->children();
+               TreeModel::Children rows = route_display_model->children();
                TreeModel::Children::iterator i;
        
                no_route_list_redisplay = true;
@@ -1160,7 +1350,7 @@ Editor::connect_to_session (Session *t)
                        RouteTimeAxisView *rtv;
                        
                        if ((rtv = dynamic_cast<RouteTimeAxisView*>(tv)) != 0) {
-                               if (rtv->route()->master()) {
+                               if (rtv->route()->is_master()) {
                                        route_list_display.get_selection()->unselect (i);
                                }
                        }
@@ -1169,10 +1359,23 @@ Editor::connect_to_session (Session *t)
                no_route_list_redisplay = false;
                redisplay_route_list ();
        }
+       
+       switch (snap_type) {
+       case SnapToRegionStart:
+       case SnapToRegionEnd:
+       case SnapToRegionSync:
+       case SnapToRegionBoundary:
+               build_region_boundary_cache ();
+               break;
+
+       default:
+               break;
+       }
 
-        /* register for undo history */
+       /* register for undo history */
+       session->register_with_memento_command_factory(_id, this);
 
-        session->register_with_memento_command_factory(_id, this);
+       start_updating ();
 }
 
 void
@@ -1207,14 +1410,41 @@ Editor::build_cursors ()
                mask = Bitmap::create (speaker_cursor_mask_bits, speaker_cursor_width, speaker_cursor_height);
                speaker_cursor = new Gdk::Cursor (source, mask, ffg, fbg, speaker_cursor_x_hot, speaker_cursor_y_hot);
        }
+       
+       { 
+               RefPtr<Bitmap> bits;
+               char pix[4] = { 0, 0, 0, 0 };
+               bits = Bitmap::create (pix, 2, 2);
+               Gdk::Color c;
+               transparent_cursor = new Gdk::Cursor (bits, bits, c, c, 0, 0);
+       }
+
+       { 
+               RefPtr<Bitmap> bits;
+               char pix[4] = { 0, 0, 0, 0 };
+               bits = Bitmap::create (pix, 2, 2);
+               Gdk::Color c;
+               transparent_cursor = new Gdk::Cursor (bits, bits, c, c, 0, 0);
+       }
+       
 
        grabber_cursor = new Gdk::Cursor (HAND2);
+       
+       {
+               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);
+       }
+
        cross_hair_cursor = new Gdk::Cursor (CROSSHAIR);
        trimmer_cursor =  new Gdk::Cursor (SB_H_DOUBLE_ARROW);
        selector_cursor = new Gdk::Cursor (XTERM);
        time_fx_cursor = new Gdk::Cursor (SIZING);
        wait_cursor = new Gdk::Cursor  (WATCH);
        timebar_cursor = new Gdk::Cursor(LEFT_PTR);
+       midi_pencil_cursor = new Gdk::Cursor (PENCIL);
+       midi_select_cursor = new Gdk::Cursor (CENTER_PTR);
+       midi_resize_cursor = new Gdk::Cursor (SIZING);
+       midi_erase_cursor = new Gdk::Cursor (DRAPED_BOX);
 }
 
 /** Pop up a context menu for when the user clicks on a fade in or fade out */
@@ -1243,12 +1473,18 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
                }
                
                items.push_back (SeparatorElem());
-               
-               items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
-               items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
-               items.push_back (MenuElem (_("Slow"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogB)));
-               items.push_back (MenuElem (_("Fast"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogA)));
-               items.push_back (MenuElem (_("Fastest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Slow)));
+
+               if (Profile->get_sae()) {
+                       items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
+                       items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
+               } else {
+                       items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
+                       items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
+                       items.push_back (MenuElem (_("Slow"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogB)));
+                       items.push_back (MenuElem (_("Fast"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogA)));
+                       items.push_back (MenuElem (_("Fastest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Slow)));
+               }
+
                break;
 
        case FadeOutItem:
@@ -1261,11 +1497,16 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
                
                items.push_back (SeparatorElem());
                
-               items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
-               items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
-               items.push_back (MenuElem (_("Slow"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogA)));
-               items.push_back (MenuElem (_("Fast"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogB)));
-               items.push_back (MenuElem (_("Fastest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Fast)));
+               if (Profile->get_sae()) {
+                       items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
+                       items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
+               } else {
+                       items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
+                       items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
+                       items.push_back (MenuElem (_("Slow"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogA)));
+                       items.push_back (MenuElem (_("Fast"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogB)));
+                       items.push_back (MenuElem (_("Fastest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Fast)));
+               }
 
                break;
 
@@ -1279,28 +1520,193 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
        fade_context_menu.popup (button, time);
 }
 
-/* Pop up the general track context menu for when the user clicks pretty much anywhere in a track or bus */
 void
-Editor::popup_track_context_menu (int button, int32_t time, nframes_t frame)
+Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection, nframes64_t frame)
+{
+       using namespace Menu_Helpers;
+       Menu* (Editor::*build_menu_function)(nframes64_t);
+       Menu *menu;
+
+       switch (item_type) {
+       case RegionItem:
+       case RegionViewName:
+       case RegionViewNameHighlight:
+               if (with_selection) {
+                       build_menu_function = &Editor::build_track_selection_context_menu;
+               } else {
+                       build_menu_function = &Editor::build_track_region_context_menu;
+               }
+               break;
+
+       case SelectionItem:
+               if (with_selection) {
+                       build_menu_function = &Editor::build_track_selection_context_menu;
+               } else {
+                       build_menu_function = &Editor::build_track_context_menu;
+               }
+               break;
+
+       case CrossfadeViewItem:
+               build_menu_function = &Editor::build_track_crossfade_context_menu;
+               break;
+
+       case StreamItem:
+               if (clicked_routeview->get_diskstream()) {
+                       build_menu_function = &Editor::build_track_context_menu;
+               } else {
+                       build_menu_function = &Editor::build_track_bus_context_menu;
+               }
+               break;
+
+       default:
+               /* probably shouldn't happen but if it does, we don't care */
+               return;
+       }
+
+       menu = (this->*build_menu_function)(frame);
+       menu->set_name ("ArdourContextMenu");
+       
+       /* now handle specific situations */
+
+       switch (item_type) {
+       case RegionItem:
+       case RegionViewName:
+       case RegionViewNameHighlight:
+               if (!with_selection) {
+                       if (region_edit_menu_split_item) {
+                               if (clicked_regionview && clicked_regionview->region()->covers (get_preferred_edit_position())) {
+                                       ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, true);
+                               } else {
+                                       ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, false);
+                               }
+                       }
+                       /*
+                       if (region_edit_menu_split_multichannel_item) {
+                               if (clicked_regionview && clicked_regionview->region().n_channels() > 1) {
+                                       // GTK2FIX find the action, change its sensitivity
+                                       // region_edit_menu_split_multichannel_item->set_sensitive (true);
+                               } else {
+                                       // GTK2FIX see above
+                                       // region_edit_menu_split_multichannel_item->set_sensitive (false);
+                               }
+                       }*/
+               }
+               break;
+
+       case SelectionItem:
+               break;
+
+       case CrossfadeViewItem:
+               break;
+
+       case StreamItem:
+               break;
+
+       default:
+               /* probably shouldn't happen but if it does, we don't care */
+               return;
+       }
+
+       if (item_type != SelectionItem && clicked_routeview && clicked_routeview->audio_track()) {
+
+               /* Bounce to disk */
+               
+               using namespace Menu_Helpers;
+               MenuList& edit_items  = menu->items();
+               
+               edit_items.push_back (SeparatorElem());
+
+               switch (clicked_routeview->audio_track()->freeze_state()) {
+               case AudioTrack::NoFreeze:
+                       edit_items.push_back (MenuElem (_("Freeze"), mem_fun(*this, &Editor::freeze_route)));
+                       break;
+
+               case AudioTrack::Frozen:
+                       edit_items.push_back (MenuElem (_("Unfreeze"), mem_fun(*this, &Editor::unfreeze_route)));
+                       break;
+                       
+               case AudioTrack::UnFrozen:
+                       edit_items.push_back (MenuElem (_("Freeze"), mem_fun(*this, &Editor::freeze_route)));
+                       break;
+               }
+
+       }
+
+       if (item_type == StreamItem && clicked_routeview) {
+               clicked_routeview->build_underlay_menu(menu);
+       }
+
+       menu->popup (button, time);
+}
+
+Menu*
+Editor::build_track_context_menu (nframes64_t ignored)
 {
-       build_track_context_menu (frame)->popup (button, time);
+       using namespace Menu_Helpers;
+
+       MenuList& edit_items = track_context_menu.items();
+       edit_items.clear();
+
+       add_dstream_context_items (edit_items);
+       return &track_context_menu;
 }
 
 Menu*
-Editor::build_track_context_menu (nframes_t frame)
+Editor::build_track_bus_context_menu (nframes64_t ignored)
 {
        using namespace Menu_Helpers;
 
-       Menu* menu = manage (new Menu);
-       MenuList& edit_items = menu->items();
+       MenuList& edit_items = track_context_menu.items();
+       edit_items.clear();
+
+       add_bus_context_items (edit_items);
+       return &track_context_menu;
+}
+
+Menu*
+Editor::build_track_region_context_menu (nframes64_t frame)
+{
+       using namespace Menu_Helpers;
+       MenuList& edit_items  = track_region_context_menu.items();
        edit_items.clear();
 
-       /* Build the general `track' context menu, adding what is appropriate given
-          the current selection */
+       RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (clicked_axisview);
+
+       if (rtv) {
+               boost::shared_ptr<Diskstream> ds;
+               boost::shared_ptr<Playlist> pl;
+               
+               if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
+                       Playlist::RegionList* regions = pl->regions_at ((nframes64_t) floor ( (double)frame * ds->speed()));
+
+                       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::iterator i = regions->begin(); i != regions->end(); ++i) {
+                                       add_region_context_items (rtv->view(), (*i), edit_items);
+                               }
+                       }
+
+                       delete regions;
+               }
+       }
+
+       add_dstream_context_items (edit_items);
+
+       return &track_region_context_menu;
+}
+
+Menu*
+Editor::build_track_crossfade_context_menu (nframes64_t frame)
+{
+       using namespace Menu_Helpers;
+       MenuList& edit_items  = track_crossfade_context_menu.items();
+       edit_items.clear ();
 
-       /* XXX: currently crossfades can't be selected, so we can't use the selection
-          to decide which crossfades to mention in the menu.  I believe this will
-          change at some point.  For now we have to use clicked_trackview to decide. */
        AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_axisview);
 
        if (atv) {
@@ -1310,7 +1716,9 @@ Editor::build_track_context_menu (nframes_t frame)
 
                if ((ds = atv->get_diskstream()) && ((pl = ds->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);
 
                        bool many = xfades.size() > 1;
@@ -1318,24 +1726,25 @@ Editor::build_track_context_menu (nframes_t frame)
                        for (AudioPlaylist::Crossfades::iterator i = xfades.begin(); i != xfades.end(); ++i) {
                                add_crossfade_context_items (atv->audio_view(), (*i), edit_items, many);
                        }
-               }
-       }       
-
-       if (!selection->time.empty()) {
-               add_selection_context_items (edit_items);
-       }
 
-       if (!selection->regions.empty()) {
-               add_region_context_items (edit_items);
+                       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::iterator i = regions->begin(); i != regions->end(); ++i) {
+                                       add_region_context_items (atv->audio_view(), (*i), edit_items);
+                               }
+                       }
+                       delete regions;
+               }
        }
 
-       if (!selection->tracks.empty()) {
-               add_bus_or_audio_track_context_items (edit_items);
-       }
-       
-       menu->set_name ("ArdourContextMenu");
+       add_dstream_context_items (edit_items);
 
-       return menu;
+       return &track_crossfade_context_menu;
 }
 
 #ifdef FFT_ANALYSIS
@@ -1376,6 +1785,19 @@ Editor::analyze_range_selection()
 }
 #endif /* FFT_ANALYSIS */
 
+Menu*
+Editor::build_track_selection_context_menu (nframes64_t ignored)
+{
+       using namespace Menu_Helpers;
+       MenuList& edit_items  = track_selection_context_menu.items();
+       edit_items.clear ();
+
+       add_selection_context_items (edit_items);
+       // edit_items.push_back (SeparatorElem());
+       // add_dstream_context_items (edit_items);
+
+       return &track_selection_context_menu;
+}
 
 /** Add context menu items relevant to crossfades.
  * @param edit_items List to add the items to.
@@ -1451,98 +1873,156 @@ Editor::add_item_with_sensitivity (Menu_Helpers::MenuList& m, Menu_Helpers::Menu
        }
 }
 
-/** Add context menu items relevant to regions.
- * @param edit_items List to add the items to.
- */
 void
-Editor::add_region_context_items (Menu_Helpers::MenuList& edit_items)
+Editor::add_region_context_items (StreamView* sv, boost::shared_ptr<Region> region, Menu_Helpers::MenuList& edit_items)
 {
        using namespace Menu_Helpers;
-       Menu *region_menu = manage (new Menu);
-       MenuList& items = region_menu->items();
+       Menu     *region_menu = manage (new Menu);
+       MenuList& items       = region_menu->items();
        region_menu->set_name ("ArdourContextMenu");
        
-       items.push_back (MenuElem (_("Edit..."), mem_fun(*this, &Editor::edit_region)));
-       items.push_back (MenuElem (_("Raise to top layer"), mem_fun(*this, &Editor::raise_region_to_top)));
-       items.push_back (MenuElem (_("Lower to bottom layer"), mem_fun  (*this, &Editor::lower_region_to_bottom)));
+       boost::shared_ptr<AudioRegion> ar;
+       boost::shared_ptr<MidiRegion>  mr;
 
-       Menu* sync_point_menu = manage (new Menu);
-       MenuList& sync_point_items = sync_point_menu->items();
-       sync_point_menu->set_name("ArdourContextMenu");
-       
-       sync_point_items.push_back (MenuElem (_("Define"), mem_fun(*this, &Editor::set_region_sync_from_edit_cursor)));
-       sync_point_items.push_back (MenuElem (_("Remove"), mem_fun(*this, &Editor::remove_region_sync)));
+       if (region) {
+               ar = boost::dynamic_pointer_cast<AudioRegion> (region);
+               mr = boost::dynamic_pointer_cast<MidiRegion> (region);
 
-       items.push_back (MenuElem (_("Sync points"), *sync_point_menu));
+               /* when this particular menu pops up, make the relevant region 
+                  become selected.
+               */
 
-       add_item_with_sensitivity (items, MenuElem (_("Audition"), mem_fun(*this, &Editor::audition_selected_region)), selection->regions.size() == 1);
-       
-       add_item_with_sensitivity (items, MenuElem (_("Export"), mem_fun(*this, &Editor::export_region)), selection->regions.size() == 1);
+               region_menu->signal_map_event().connect (
+                       bind (mem_fun(*this, &Editor::set_selected_regionview_from_map_event), sv, boost::weak_ptr<Region>(region)));
+               
+               items.push_back (MenuElem (_("Rename"), mem_fun(*this, &Editor::rename_region)));
+               items.push_back (MenuElem (_("Popup region editor"), mem_fun(*this, &Editor::edit_region)));
+       }
 
-       items.push_back (MenuElem (_("Bounce"), mem_fun(*this, &Editor::bounce_region_selection)));
+       items.push_back (MenuElem (_("Raise to top layer"), mem_fun(*this, &Editor::raise_region_to_top)));
+       items.push_back (MenuElem (_("Lower to bottom layer"), mem_fun  (*this, &Editor::lower_region_to_bottom)));
+       items.push_back (SeparatorElem());
+       items.push_back (MenuElem (_("Define sync point"), mem_fun(*this, &Editor::set_region_sync_from_edit_point)));
+       items.push_back (MenuElem (_("Remove sync point"), mem_fun(*this, &Editor::remove_region_sync)));
+       items.push_back (SeparatorElem());
+
+       items.push_back (MenuElem (_("Audition"), mem_fun(*this, &Editor::play_selected_region)));
+       items.push_back (MenuElem (_("Export"), mem_fun(*this, &Editor::export_region)));
+       items.push_back (MenuElem (_("Bounce"), mem_fun(*this, &Editor::bounce_region_selection)));
 
 #ifdef FFT_ANALYSIS
-       items.push_back (MenuElem (_("Analyze region"), mem_fun(*this, &Editor::analyze_region_selection)));
+       if (ar) {
+               items.push_back (MenuElem (_("Spectral Analysis"), mem_fun(*this, &Editor::analyze_region_selection)));
+       }
 #endif
 
        items.push_back (SeparatorElem());
 
-       items.push_back (MenuElem (_("Lock"), bind (mem_fun (*this, &Editor::set_region_lock), true)));
-       items.push_back (MenuElem (_("Unlock"), bind (mem_fun (*this, &Editor::set_region_lock), false)));
-       items.push_back (MenuElem (_("Lock Position"), bind (mem_fun (*this, &Editor::set_region_position_lock), true)));
-       items.push_back (MenuElem (_("Unlock Position"), bind (mem_fun (*this, &Editor::set_region_position_lock), false)));
-       items.push_back (MenuElem (_("Mute"), bind (mem_fun (*this, &Editor::set_region_mute), true)));
-       items.push_back (MenuElem (_("Unmute"), bind (mem_fun (*this, &Editor::set_region_mute), false)));
-       items.push_back (MenuElem (_("Opaque"), bind (mem_fun (*this, &Editor::set_region_opaque), true)));
-       items.push_back (MenuElem (_("Transparent"), bind (mem_fun (*this, &Editor::set_region_opaque), false)));
-
-       /* We allow "Original position" if at least one region is not at its
-          natural position 
-       */
-       RegionSelection::iterator i = selection->regions.begin();
-       while (i != selection->regions.end() && (*i)->region()->at_natural_position() == true) {
-               ++i;
+       sigc::connection fooc;
+       boost::shared_ptr<Region> region_to_check;
+
+       if (region) {
+               region_to_check = region;
+       } else {
+               region_to_check = selection->regions.front()->region();
        }
 
-       add_item_with_sensitivity (items, MenuElem (_("Original position"), mem_fun(*this, &Editor::naturalize)), i != selection->regions.end());
+       items.push_back (CheckMenuElem (_("Lock")));
+       CheckMenuItem* region_lock_item = static_cast<CheckMenuItem*>(&items.back());
+       if (region_to_check->locked()) {
+               region_lock_item->set_active();
+       }
+       region_lock_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_region_lock));
        
-       items.push_back (SeparatorElem());
-
-       /* Find out if we have a selected audio region */
-       i = selection->regions.begin();
-       while (i != selection->regions.end() && boost::dynamic_pointer_cast<AudioRegion>((*i)->region()) == 0) {
-               ++i;
+       items.push_back (CheckMenuElem (_("Glue to Bars&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;
        }
-       bool const have_selected_audio_region = (i != selection->regions.end());
-
-       if (have_selected_audio_region) {
+       
+       bbt_glue_item->signal_activate().connect (bind (mem_fun (*this, &Editor::set_region_lock_style), Region::MusicTime));
+       
+       items.push_back (CheckMenuElem (_("Mute")));
+       CheckMenuItem* region_mute_item = static_cast<CheckMenuItem*>(&items.back());
+       fooc = region_mute_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_region_mute));
+       if (region_to_check->muted()) {
+               fooc.block (true);
+               region_mute_item->set_active();
+               fooc.block (false);
+       }
+       
+       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 (mem_fun(*this, &Editor::toggle_region_opaque));
+               if (region_to_check->opaque()) {
+                       fooc.block (true);
+                       region_opaque_item->set_active();
+                       fooc.block (false);
+               }
+       }
+       
+       items.push_back (CheckMenuElem (_("Original position"), mem_fun(*this, &Editor::naturalize)));
+       if (region_to_check->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 (!Profile->get_sae()) {
+                       items.push_back (MenuElem (_("Reset Envelope"), 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 (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);
+                       }
+               
+                       items.push_back (CheckMenuElem (_("Envelope Active")));
+                       CheckMenuItem* region_envelope_active_item = static_cast<CheckMenuItem*> (&items.back());
+                       fooc = region_envelope_active_item->signal_activate().connect (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);
+                       }
 
-               Menu* envelopes_menu = manage (new Menu);
-               MenuList& envelopes_items = envelopes_menu->items();
-               envelopes_menu->set_name ("ArdourContextMenu");
+                       items.push_back (SeparatorElem());
+               }
 
-               envelopes_items.push_back (MenuElem (_("Reset"), mem_fun(*this, &Editor::reset_region_gain_envelopes)));
-               envelopes_items.push_back (MenuElem (_("Visible"), bind (mem_fun (*this, &Editor::set_gain_envelope_visibility), true)));
-               envelopes_items.push_back (MenuElem (_("Invisible"), bind (mem_fun (*this, &Editor::set_gain_envelope_visibility), false)));
-               envelopes_items.push_back (MenuElem (_("Active"), bind (mem_fun (*this, &Editor::set_gain_envelope_active), true)));
-               envelopes_items.push_back (MenuElem (_("Inactive"), bind (mem_fun (*this, &Editor::set_gain_envelope_active), false)));
+               if (ar->scale_amplitude() != 1.0f) {
+                       items.push_back (MenuElem (_("DeNormalize"), mem_fun(*this, &Editor::denormalize_region)));
+               } else {
+                       items.push_back (MenuElem (_("Normalize"), mem_fun(*this, &Editor::normalize_region)));
+               }
 
-               items.push_back (MenuElem (_("Envelopes"), *envelopes_menu));
-               
-               items.push_back (MenuElem (_("Denormalize"), mem_fun (*this, &Editor::denormalize_regions)));
-               items.push_back (MenuElem (_("Normalize"), mem_fun (*this, &Editor::normalize_regions)));
+       } else if (mr) {
+               items.push_back (MenuElem (_("Quantize"), mem_fun(*this, &Editor::quantize_region)));
+               items.push_back (SeparatorElem());
        }
-       
-       items.push_back (MenuElem (_("Reverse"), mem_fun(*this, &Editor::reverse_regions)));
-       items.push_back (SeparatorElem());
 
+       items.push_back (MenuElem (_("Reverse"), mem_fun(*this, &Editor::reverse_region)));
+       items.push_back (SeparatorElem());
 
        /* range related stuff */
-       
-       add_item_with_sensitivity (items, MenuElem (_("Add range markers"), mem_fun (*this, &Editor::add_location_from_audio_region)), selection->regions.size() == 1);
-       
-       add_item_with_sensitivity (items, MenuElem (_("Set range selection"), mem_fun (*this, &Editor::set_selection_from_audio_region)), selection->regions.size() == 1);
-       
+
+       items.push_back (MenuElem (_("Add Range Markers"), mem_fun (*this, &Editor::add_location_from_audio_region)));
+       items.push_back (MenuElem (_("Set Range Selection"), mem_fun (*this, &Editor::set_selection_from_region)));
        items.push_back (SeparatorElem());
                         
        /* Nudge region */
@@ -1551,25 +2031,35 @@ Editor::add_region_context_items (Menu_Helpers::MenuList& edit_items)
        MenuList& nudge_items = nudge_menu->items();
        nudge_menu->set_name ("ArdourContextMenu");
        
-       nudge_items.push_back (MenuElem (_("Nudge forward"), (bind (mem_fun(*this, &Editor::nudge_forward), false))));
-       nudge_items.push_back (MenuElem (_("Nudge backward"), (bind (mem_fun(*this, &Editor::nudge_backward), false))));
-       nudge_items.push_back (MenuElem (_("Nudge forward by capture offset"), (mem_fun(*this, &Editor::nudge_forward_capture_offset))));
-       nudge_items.push_back (MenuElem (_("Nudge backward by capture offset"), (mem_fun(*this, &Editor::nudge_backward_capture_offset))));
+       nudge_items.push_back (MenuElem (_("Nudge fwd"), (bind (mem_fun(*this, &Editor::nudge_forward), false, false))));
+       nudge_items.push_back (MenuElem (_("Nudge bwd"), (bind (mem_fun(*this, &Editor::nudge_backward), false, false))));
+       nudge_items.push_back (MenuElem (_("Nudge fwd by capture offset"), (mem_fun(*this, &Editor::nudge_forward_capture_offset))));
+       nudge_items.push_back (MenuElem (_("Nudge bwd by capture offset"), (mem_fun(*this, &Editor::nudge_backward_capture_offset))));
 
        items.push_back (MenuElem (_("Nudge"), *nudge_menu));
+       items.push_back (SeparatorElem());
 
        Menu *trim_menu = manage (new Menu);
        MenuList& trim_items = trim_menu->items();
        trim_menu->set_name ("ArdourContextMenu");
        
-       trim_items.push_back (MenuElem (_("Start to edit cursor"), mem_fun(*this, &Editor::trim_region_from_edit_cursor)));
-       trim_items.push_back (MenuElem (_("Edit cursor to end"), mem_fun(*this, &Editor::trim_region_to_edit_cursor)));
+       trim_items.push_back (MenuElem (_("Start to edit point"), mem_fun(*this, &Editor::trim_region_from_edit_point)));
+       trim_items.push_back (MenuElem (_("Edit point to end"), mem_fun(*this, &Editor::trim_region_to_edit_point)));
+       trim_items.push_back (MenuElem (_("Trim To Loop"), mem_fun(*this, &Editor::trim_region_to_loop)));
+       trim_items.push_back (MenuElem (_("Trim To Punch"), mem_fun(*this, &Editor::trim_region_to_punch)));
                             
        items.push_back (MenuElem (_("Trim"), *trim_menu));
+       items.push_back (SeparatorElem());
+
        items.push_back (MenuElem (_("Split"), (mem_fun(*this, &Editor::split_region))));
+       region_edit_menu_split_item = &items.back();
+
        items.push_back (MenuElem (_("Make mono regions"), (mem_fun(*this, &Editor::split_multichannel_region))));
-       items.push_back (MenuElem (_("Duplicate"), (bind (mem_fun(*this, &Editor::duplicate_dialog), true))));
-       items.push_back (MenuElem (_("Fill track"), (mem_fun(*this, &Editor::region_fill_track))));
+       region_edit_menu_split_multichannel_item = &items.back();
+
+       items.push_back (MenuElem (_("Duplicate"), (bind (mem_fun(*this, &Editor::duplicate_dialog), false))));
+       items.push_back (MenuElem (_("Multi-Duplicate"), (bind (mem_fun(*this, &Editor::duplicate_dialog), true))));
+       items.push_back (MenuElem (_("Fill Track"), (mem_fun(*this, &Editor::region_fill_track))));
        items.push_back (SeparatorElem());
        items.push_back (MenuElem (_("Remove"), mem_fun(*this, &Editor::remove_selected_regions)));
 
@@ -1577,8 +2067,20 @@ Editor::add_region_context_items (Menu_Helpers::MenuList& edit_items)
           the standard items.
        */
 
-       string const menu_item_name = selection->regions.size() > 1 ? _("Regions") : _("Region");
+       /* we have to hack up the region name because "_" has a special
+          meaning for menu titles.
+       */
+
+       string::size_type pos = 0;
+       string menu_item_name = (region) ? region->name() : _("Selected regions");
+
+       while ((pos = menu_item_name.find ("_", pos)) != string::npos) {
+               menu_item_name.replace (pos, 1, "__");
+               pos += 2;
+       }
+       
        edit_items.push_back (MenuElem (menu_item_name, *region_menu));
+       edit_items.push_back (SeparatorElem());
 }
 
 /** Add context menu items relevant to selection ranges.
@@ -1593,74 +2095,58 @@ Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
        selection_menu->set_name ("ArdourContextMenu");
 
        items.push_back (MenuElem (_("Play range"), mem_fun(*this, &Editor::play_selection)));
-       items.push_back (MenuElem (_("Loop range"), mem_fun(*this, &Editor::set_route_loop_selection)));
+       items.push_back (MenuElem (_("Loop range"), bind (mem_fun(*this, &Editor::set_loop_from_selection), true)));
 
 #ifdef FFT_ANALYSIS
        items.push_back (SeparatorElem());
-       items.push_back (MenuElem (_("Analyze range"), mem_fun(*this, &Editor::analyze_range_selection)));
+       items.push_back (MenuElem (_("Spectral Analysis"), mem_fun(*this, &Editor::analyze_range_selection)));
 #endif
        
        items.push_back (SeparatorElem());
-       items.push_back (MenuElem (_("Separate range to track"), mem_fun(*this, &Editor::separate_region_from_selection)));
-       items.push_back (MenuElem (_("Separate range to region list"), mem_fun(*this, &Editor::new_region_from_selection)));
+       items.push_back (MenuElem (_("Extend Range to End of Region"), bind (mem_fun(*this, &Editor::extend_selection_to_end_of_region), false)));
+       items.push_back (MenuElem (_("Extend Range to Start of Region"), bind (mem_fun(*this, &Editor::extend_selection_to_start_of_region), false)));
+
+       items.push_back (SeparatorElem());
+       items.push_back (MenuElem (_("Convert to region in-place"), mem_fun(*this, &Editor::separate_region_from_selection)));
+       items.push_back (MenuElem (_("Convert to region in region list"), mem_fun(*this, &Editor::new_region_from_selection)));
        
        items.push_back (SeparatorElem());
        items.push_back (MenuElem (_("Select all in range"), mem_fun(*this, &Editor::select_all_selectables_using_time_selection)));
+
+       items.push_back (SeparatorElem());
+       items.push_back (MenuElem (_("Set loop from selection"), bind (mem_fun(*this, &Editor::set_loop_from_selection), false)));
+       items.push_back (MenuElem (_("Set punch from selection"), mem_fun(*this, &Editor::set_punch_from_selection)));
+       
        items.push_back (SeparatorElem());
-       items.push_back (MenuElem (_("Add range markers"), mem_fun (*this, &Editor::add_location_from_selection)));
-       items.push_back (MenuElem (_("Set range to loop range"), mem_fun(*this, &Editor::set_selection_from_loop)));
-       items.push_back (MenuElem (_("Set range to punch range"), mem_fun(*this, &Editor::set_selection_from_punch)));
+       items.push_back (MenuElem (_("Add Range Markers"), mem_fun (*this, &Editor::add_location_from_selection)));
        items.push_back (SeparatorElem());
        items.push_back (MenuElem (_("Crop region to range"), mem_fun(*this, &Editor::crop_region_to_selection)));
        items.push_back (MenuElem (_("Fill range with region"), mem_fun(*this, &Editor::region_fill_selection)));
        items.push_back (MenuElem (_("Duplicate range"), bind (mem_fun(*this, &Editor::duplicate_dialog), false)));
        items.push_back (MenuElem (_("Create chunk from range"), mem_fun(*this, &Editor::create_named_selection)));
        items.push_back (SeparatorElem());
-       items.push_back (MenuElem (_("Bounce range"), mem_fun(*this, &Editor::bounce_range_selection)));
-       items.push_back (MenuElem (_("Export range"), mem_fun(*this, &Editor::export_selection)));
-
-       edit_items.push_back (MenuElem (_("Range"), *selection_menu));
-       edit_items.push_back (SeparatorElem());
+       items.push_back (MenuElem (_("Consolidate range"), bind (mem_fun(*this, &Editor::bounce_range_selection), true)));
+       items.push_back (MenuElem (_("Bounce range to region list"), bind (mem_fun(*this, &Editor::bounce_range_selection), false)));
+       items.push_back (MenuElem (_("Export range"), mem_fun(*this, &Editor::export_range)));
 }
 
-/** Add context menu items relevant to busses or audio tracks.
- * @param edit_items List to add the items to.
- */
+       
 void
-Editor::add_bus_or_audio_track_context_items (Menu_Helpers::MenuList& edit_items)
+Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
 {
        using namespace Menu_Helpers;
 
-       /* We add every possible action here, and de-sensitize things
-          that aren't allowed.  The sensitivity logic is a bit spread out;
-          on the one hand I'm using things like can_cut_copy (), which is
-          reasonably complicated and so perhaps better near the function that
-          it expresses sensitivity for, and on the other hand checks
-          in this function as well.  You can't really have can_* for everything
-          or the number of methods would get silly. */
-
-       bool const one_selected_region = selection->regions.size() == 1;
-
-       /* Count the number of selected audio tracks */
-       int n_audio_tracks = 0;
-       for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
-               RouteTimeAxisView const * r = dynamic_cast<RouteTimeAxisView*>(*i);
-               if (r && r->is_audio_track()) {
-                       n_audio_tracks++;
-               }
-       }
-
        /* Playback */
 
        Menu *play_menu = manage (new Menu);
        MenuList& play_items = play_menu->items();
        play_menu->set_name ("ArdourContextMenu");
        
-       play_items.push_back (MenuElem (_("Play from edit cursor"), mem_fun(*this, &Editor::play_from_edit_cursor)));
+       play_items.push_back (MenuElem (_("Play from edit point"), mem_fun(*this, &Editor::play_from_edit_point)));
        play_items.push_back (MenuElem (_("Play from start"), mem_fun(*this, &Editor::play_from_start)));
-       add_item_with_sensitivity (play_items, MenuElem (_("Play region"), mem_fun(*this, &Editor::play_selected_region)), one_selected_region);
-       
-       add_item_with_sensitivity (play_items, MenuElem (_("Loop region"), mem_fun(*this, &Editor::loop_selected_region)), one_selected_region);
+       play_items.push_back (MenuElem (_("Play region"), mem_fun(*this, &Editor::play_selected_region)));
+       play_items.push_back (SeparatorElem());
+       play_items.push_back (MenuElem (_("Loop Region"), mem_fun(*this, &Editor::loop_selected_region)));
        
        edit_items.push_back (MenuElem (_("Play"), *play_menu));
 
@@ -1669,33 +2155,24 @@ Editor::add_bus_or_audio_track_context_items (Menu_Helpers::MenuList& edit_items
        Menu *select_menu = manage (new Menu);
        MenuList& select_items = select_menu->items();
        select_menu->set_name ("ArdourContextMenu");
-
-       string str = selection->tracks.size() == 1 ? _("Select all in track") : _("Select all in tracks");
-
-       select_items.push_back (MenuElem (str, bind (mem_fun(*this, &Editor::select_all_in_selected_tracks), Selection::Set)));
-       
-       select_items.push_back (MenuElem (_("Select all"), bind (mem_fun(*this, &Editor::select_all), Selection::Set)));
-
-       str = selection->tracks.size() == 1 ? _("Invert selection in track") : _("Invert selection in tracks");
-       
-       select_items.push_back (MenuElem (str, mem_fun(*this, &Editor::invert_selection_in_selected_tracks)));
        
+       select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
+       select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), Selection::Set)));
+       select_items.push_back (MenuElem (_("Invert selection in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
        select_items.push_back (MenuElem (_("Invert selection"), mem_fun(*this, &Editor::invert_selection)));
        select_items.push_back (SeparatorElem());
+       select_items.push_back (MenuElem (_("Set range to loop range"), mem_fun(*this, &Editor::set_selection_from_loop)));
+       select_items.push_back (MenuElem (_("Set range to punch range"), mem_fun(*this, &Editor::set_selection_from_punch)));
+       select_items.push_back (SeparatorElem());
+       select_items.push_back (MenuElem (_("Select All After Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
+       select_items.push_back (MenuElem (_("Select All Before Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
+       select_items.push_back (MenuElem (_("Select All After Playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
+       select_items.push_back (MenuElem (_("Select All Before Playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
+       select_items.push_back (MenuElem (_("Select All Between Playhead & Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_between), false)));
+       select_items.push_back (MenuElem (_("Select All Within Playhead & Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_between), true)));
+       select_items.push_back (MenuElem (_("Select Range Between Playhead & Edit Point"), mem_fun(*this, &Editor::select_range_between)));
 
-       if (n_audio_tracks) {
-               select_items.push_back (MenuElem (_("Set range to loop range"), mem_fun(*this, &Editor::set_selection_from_loop)));
-               select_items.push_back (MenuElem (_("Set range to punch range"), mem_fun(*this, &Editor::set_selection_from_punch)));
-       }
-       
-       select_items.push_back (MenuElem (_("Select all after edit cursor"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), edit_cursor, true)));
-       select_items.push_back (MenuElem (_("Select all before edit cursor"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), edit_cursor, false)));
-       select_items.push_back (MenuElem (_("Select all after playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
-       select_items.push_back (MenuElem (_("Select all before playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
-
-       if (n_audio_tracks) {
-               select_items.push_back (MenuElem (_("Select all between cursors"), bind (mem_fun(*this, &Editor::select_all_selectables_between_cursors), playhead_cursor, edit_cursor)));
-       }
+       select_items.push_back (SeparatorElem());
 
        edit_items.push_back (MenuElem (_("Select"), *select_menu));
 
@@ -1704,77 +2181,112 @@ Editor::add_bus_or_audio_track_context_items (Menu_Helpers::MenuList& edit_items
        Menu *cutnpaste_menu = manage (new Menu);
        MenuList& cutnpaste_items = cutnpaste_menu->items();
        cutnpaste_menu->set_name ("ArdourContextMenu");
+       
+       cutnpaste_items.push_back (MenuElem (_("Cut"), mem_fun(*this, &Editor::cut)));
+       cutnpaste_items.push_back (MenuElem (_("Copy"), mem_fun(*this, &Editor::copy)));
+       cutnpaste_items.push_back (MenuElem (_("Paste"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
 
-       add_item_with_sensitivity (cutnpaste_items, MenuElem (_("Cut"), mem_fun(*this, &Editor::cut)), can_cut_copy ());
+       cutnpaste_items.push_back (SeparatorElem());
+
+       cutnpaste_items.push_back (MenuElem (_("Align"), bind (mem_fun(*this, &Editor::align), ARDOUR::SyncPoint)));
+       cutnpaste_items.push_back (MenuElem (_("Align Relative"), bind (mem_fun(*this, &Editor::align_relative), ARDOUR::SyncPoint)));
+
+       cutnpaste_items.push_back (SeparatorElem());
+
+       cutnpaste_items.push_back (MenuElem (_("Insert chunk"), bind (mem_fun(*this, &Editor::paste_named_selection), 1.0f)));
+
+       edit_items.push_back (MenuElem (_("Edit"), *cutnpaste_menu));
+
+       /* Adding new material */
        
-       add_item_with_sensitivity (cutnpaste_items, MenuElem (_("Copy"), mem_fun(*this, &Editor::copy)), can_cut_copy ());
+       edit_items.push_back (SeparatorElem());
+       edit_items.push_back (MenuElem (_("Insert Selected Region"), bind (mem_fun(*this, &Editor::insert_region_list_selection), 1.0f)));
+       edit_items.push_back (MenuElem (_("Insert Existing Media"), bind (mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)));
+
+       /* Nudge track */
+
+       Menu *nudge_menu = manage (new Menu());
+       MenuList& nudge_items = nudge_menu->items();
+       nudge_menu->set_name ("ArdourContextMenu");
        
-       if (n_audio_tracks) {
-               cutnpaste_items.push_back (MenuElem (_("Paste at edit cursor"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
-               cutnpaste_items.push_back (MenuElem (_("Paste at mouse"), mem_fun(*this, &Editor::mouse_paste)));
-               
-               cutnpaste_items.push_back (SeparatorElem());
-               
-               cutnpaste_items.push_back (MenuElem (_("Align"), bind (mem_fun(*this, &Editor::align), ARDOUR::SyncPoint)));
-               cutnpaste_items.push_back (MenuElem (_("Align relative"), bind (mem_fun(*this, &Editor::align_relative), ARDOUR::SyncPoint)));
-               cutnpaste_items.push_back (MenuElem (_("Insert chunk"), bind (mem_fun(*this, &Editor::paste_named_selection), 1.0f)));
-       } else {
-               cutnpaste_items.push_back (MenuElem (_("Paste"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
-       }
+       edit_items.push_back (SeparatorElem());
+       nudge_items.push_back (MenuElem (_("Nudge entire track fwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, true))));
+       nudge_items.push_back (MenuElem (_("Nudge track after edit point fwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, true))));
+       nudge_items.push_back (MenuElem (_("Nudge entire track bwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, false))));
+       nudge_items.push_back (MenuElem (_("Nudge track after edit point bwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, false))));
 
-       edit_items.push_back (MenuElem (_("Edit"), *cutnpaste_menu));
-               
-       if (n_audio_tracks) {
+       edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
+}
 
-               Menu *track_menu = manage (new Menu);
-               MenuList& track_items = track_menu->items();
-               track_menu->set_name ("ArdourContextMenu");
-               
-               /* Adding new material */
+void
+Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
+{
+       using namespace Menu_Helpers;
+
+       /* Playback */
+
+       Menu *play_menu = manage (new Menu);
+       MenuList& play_items = play_menu->items();
+       play_menu->set_name ("ArdourContextMenu");
        
-               add_item_with_sensitivity (track_items, MenuElem (_("Insert selected region"), bind (mem_fun(*this, &Editor::insert_region_list_selection), 1.0f)), n_audio_tracks == 1);
-               
-               add_item_with_sensitivity (track_items, MenuElem (_("Insert existing audio"), bind (mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)), n_audio_tracks == 1);
-               
-               /* Nudge */
+       play_items.push_back (MenuElem (_("Play from edit point"), mem_fun(*this, &Editor::play_from_edit_point)));
+       play_items.push_back (MenuElem (_("Play from start"), mem_fun(*this, &Editor::play_from_start)));
+       edit_items.push_back (MenuElem (_("Play"), *play_menu));
 
-               Menu *nudge_menu = manage (new Menu());
-               MenuList& nudge_items = nudge_menu->items();
-               nudge_menu->set_name ("ArdourContextMenu");
+       /* Selection */
 
-               str = selection->tracks.size() == 1 ? _("Nudge track forward") : _("Nude tracks forward");
-               nudge_items.push_back (MenuElem (str, (bind (mem_fun(*this, &Editor::nudge_selected_tracks), false, true))));
+       Menu *select_menu = manage (new Menu);
+       MenuList& select_items = select_menu->items();
+       select_menu->set_name ("ArdourContextMenu");
+       
+       select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
+       select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), Selection::Set)));
+       select_items.push_back (MenuElem (_("Invert selection in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
+       select_items.push_back (MenuElem (_("Invert selection"), mem_fun(*this, &Editor::invert_selection)));
+       select_items.push_back (SeparatorElem());
+       select_items.push_back (MenuElem (_("Select all after edit point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
+       select_items.push_back (MenuElem (_("Select all before edit point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
+       select_items.push_back (MenuElem (_("Select all after playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
+       select_items.push_back (MenuElem (_("Select all before playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
 
-               str = selection->tracks.size() == 1 ? _("Nudge track after edit cursor forward") : _("Nudge tracks after edit cursor forward");
-               
-               nudge_items.push_back (MenuElem (str, (bind (mem_fun(*this, &Editor::nudge_selected_tracks), true, true))));
+       edit_items.push_back (MenuElem (_("Select"), *select_menu));
 
-               str = selection->tracks.size() == 1 ? _("Nudge track backward") : _("Nudge tracks backward");
-               
-               nudge_items.push_back (MenuElem (str, (bind (mem_fun(*this, &Editor::nudge_selected_tracks), false, false))));
+       /* Cut-n-Paste */
 
-               str = selection->tracks.size() == 1 ? _("Nudge track after edit cursor backward") : _("Nudge tracks after edit cursor backward");
-               
-               nudge_items.push_back (MenuElem (str, (bind (mem_fun(*this, &Editor::nudge_selected_tracks), true, false))));
-               
-               track_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
+       Menu *cutnpaste_menu = manage (new Menu);
+       MenuList& cutnpaste_items = cutnpaste_menu->items();
+       cutnpaste_menu->set_name ("ArdourContextMenu");
+       
+       cutnpaste_items.push_back (MenuElem (_("Cut"), mem_fun(*this, &Editor::cut)));
+       cutnpaste_items.push_back (MenuElem (_("Copy"), mem_fun(*this, &Editor::copy)));
+       cutnpaste_items.push_back (MenuElem (_("Paste"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
 
-               /* Freeze */
-               track_items.push_back (MenuElem (_("Freeze"), mem_fun(*this, &Editor::freeze_routes)));
-               track_items.push_back (MenuElem (_("Unfreeze"), mem_fun(*this, &Editor::unfreeze_routes)));
+       Menu *nudge_menu = manage (new Menu());
+       MenuList& nudge_items = nudge_menu->items();
+       nudge_menu->set_name ("ArdourContextMenu");
+       
+       edit_items.push_back (SeparatorElem());
+       nudge_items.push_back (MenuElem (_("Nudge entire track fwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, true))));
+       nudge_items.push_back (MenuElem (_("Nudge track after edit point fwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, true))));
+       nudge_items.push_back (MenuElem (_("Nudge entire track bwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, false))));
+       nudge_items.push_back (MenuElem (_("Nudge track after edit point bwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, false))));
 
-               str = selection->tracks.size() == 1 ? _("Track") : _("Tracks");
-               edit_items.push_back (MenuElem (str, *track_menu));
-       }
+       edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
 }
 
-/* CURSOR SETTING AND MARKS AND STUFF */
-
 void
 Editor::set_snap_to (SnapType st)
-{      
+{
+       unsigned int snap_ind = (unsigned int)st;
+
        snap_type = st;
-       string str = snap_type_strings[(int) st];
+       
+       if (snap_ind > snap_type_strings.size() - 1) {
+               snap_ind = 0;
+               snap_type = (SnapType)snap_ind;
+       }
+       
+       string str = snap_type_strings[snap_ind];
 
        if (str != snap_type_selector.get_active_text()) {
                snap_type_selector.set_active_text (str);
@@ -1788,7 +2300,17 @@ Editor::set_snap_to (SnapType st)
        case SnapToAEighthBeat:
        case SnapToAQuarterBeat:
        case SnapToAThirdBeat:
-                update_tempo_based_rulers ();
+               compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + (nframes_t)(edit_packer.get_width() * frames_per_unit));
+               update_tempo_based_rulers ();
+               break;
+
+       case SnapToRegionStart:
+       case SnapToRegionEnd:
+       case SnapToRegionSync:
+       case SnapToRegionBoundary:
+               build_region_boundary_cache ();
+               break;
+
        default:
                /* relax */
                break;
@@ -1807,6 +2329,74 @@ Editor::set_snap_mode (SnapMode mode)
 
        instant_save ();
 }
+void
+Editor::set_edit_point_preference (EditPoint ep, bool force)
+{
+       bool changed = (_edit_point != ep);
+
+       _edit_point = ep;
+       string str = edit_point_strings[(int)ep];
+
+       if (str != edit_point_selector.get_active_text ()) {
+               edit_point_selector.set_active_text (str);
+       }
+
+       set_canvas_cursor ();
+
+       if (!force && !changed) {
+               return;
+       }
+
+       switch (zoom_focus) {
+       case ZoomFocusMouse:
+       case ZoomFocusPlayhead:
+       case ZoomFocusEdit:
+               switch (_edit_point) {
+               case EditAtMouse:
+                       set_zoom_focus (ZoomFocusMouse);
+                       break;
+               case EditAtPlayhead:
+                       set_zoom_focus (ZoomFocusPlayhead);
+                       break;
+               case EditAtSelectedMarker:
+                       set_zoom_focus (ZoomFocusEdit);
+                       break;
+               }
+               break;
+       default:
+               break;
+       }
+
+       const char* action;
+
+       switch (_edit_point) {
+       case EditAtPlayhead:
+               action = "edit-at-playhead";
+               break;
+       case EditAtSelectedMarker:
+               action = "edit-at-marker";
+               break;
+       case EditAtMouse:
+               action = "edit-at-mouse";
+               break;
+       }
+
+       Glib::RefPtr<Action> act = ActionManager::get_action ("Editor", action);
+       if (act) {
+               Glib::RefPtr<RadioAction>::cast_dynamic(act)->set_active (true);
+       }
+
+       nframes64_t foo;
+       bool in_track_canvas;
+
+       if (!mouse_frame (foo, in_track_canvas)) {
+               in_track_canvas = false;
+       }
+
+       reset_canvas_action_sensitivity (in_track_canvas);
+
+       instant_save ();
+}
 
 int
 Editor::set_state (const XMLNode& node)
@@ -1843,7 +2433,7 @@ Editor::set_state (const XMLNode& node)
        move (x, y);
 
        if (session && (prop = node.property ("playhead"))) {
-               nframes_t pos = atol (prop->value().c_str());
+               nframes64_t pos = atol (prop->value().c_str());
                playhead_cursor->set_position (pos);
        } else {
                playhead_cursor->set_position (0);
@@ -1857,13 +2447,6 @@ Editor::set_state (const XMLNode& node)
                horizontal_adjustment.set_value (0);
        }
 
-       if (session && (prop = node.property ("edit-cursor"))) {
-               nframes_t pos = atol (prop->value().c_str());
-               edit_cursor->set_position (pos);
-       } else {
-               edit_cursor->set_position (0);
-       }
-
        if ((prop = node.property ("mixer-width"))) {
                editor_mixer_strip_width = Width (string_2_enum (prop->value(), editor_mixer_strip_width));
        }
@@ -1884,6 +2467,10 @@ Editor::set_state (const XMLNode& node)
                set_snap_mode ((SnapMode) atoi (prop->value()));
        }
 
+       if ((prop = node.property ("edit-point"))) {
+               set_edit_point_preference ((EditPoint) string_2_enum (prop->value(), _edit_point), true);
+       }
+
        if ((prop = node.property ("mouse-mode"))) {
                MouseMode m = str2mousemode(prop->value());
                mouse_mode = MouseMode ((int) m + 1); /* lie, force mode switch */
@@ -1896,7 +2483,7 @@ Editor::set_state (const XMLNode& node)
        if ((prop = node.property ("show-waveforms"))) {
                bool yn = (prop->value() == "yes");
                _show_waveforms = !yn;
-               RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleWaveformVisibility"));
+               RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-waveform-visible"));
                if (act) {
                        RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
                        /* do it twice to force the change */
@@ -1966,6 +2553,22 @@ Editor::set_state (const XMLNode& node)
                        tact->set_active (yn);
                }
        }
+       
+       if ((prop = node.property ("show-editor-list"))) {
+
+               Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
+               assert(act);
+               if (act) {
+
+                       Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
+                       bool yn = (prop->value() == X_("yes"));
+
+                       /* do it twice to force the change */
+                       
+                       tact->set_active (!yn);
+                       tact->set_active (yn);
+               }
+       }
 
 
        return 0;
@@ -2019,10 +2622,10 @@ Editor::get_state ()
        snprintf (buf, sizeof(buf), "%d", (int) snap_mode);
        node->add_property ("snap-mode", buf);
 
-       snprintf (buf, sizeof (buf), "%" PRIu32, playhead_cursor->current_frame);
+       node->add_property ("edit-point", enum_2_string (_edit_point));
+
+       snprintf (buf, sizeof (buf), "%" PRIi64, playhead_cursor->current_frame);
        node->add_property ("playhead", buf);
-       snprintf (buf, sizeof (buf), "%" PRIu32, edit_cursor->current_frame);
-       node->add_property ("edit-cursor", buf);
 
        node->add_property ("show-waveforms", _show_waveforms ? "yes" : "no");
        node->add_property ("show-waveforms-recording", _show_waveforms_recording ? "yes" : "no");
@@ -2037,6 +2640,12 @@ Editor::get_state ()
                Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
                node->add_property (X_("show-editor-mixer"), tact->get_active() ? "yes" : "no");
        }
+       
+       act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
+       if (act) {
+               Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
+               node->add_property (X_("show-editor-list"), tact->get_active() ? "yes" : "no");
+       }
 
        return *node;
 }
@@ -2059,38 +2668,41 @@ Editor::trackview_by_y_position (double y)
 }
 
 void
-Editor::snap_to (nframes_t& start, int32_t direction, bool for_mark)
+Editor::snap_to (nframes64_t& start, int32_t direction, bool for_mark)
 {
-       Location* before = 0;
-       Location* after = 0;
-
-       if (!session) {
+       if (!session || snap_mode == SnapOff) {
                return;
        }
 
-       const nframes_t one_second = session->frame_rate();
-       const nframes_t one_minute = session->frame_rate() * 60;
-       const nframes_t one_smpte_second = (nframes_t)(rint(session->smpte_frames_per_second()) * session->frames_per_smpte_frame());
-       nframes_t one_smpte_minute = (nframes_t)(rint(session->smpte_frames_per_second()) * session->frames_per_smpte_frame() * 60);
-       nframes_t presnap = start;
+       snap_to_internal (start, direction, for_mark);
+}
 
-       switch (snap_type) {
-       case SnapToFrame:
-               break;
+void
+Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
+{
+       Location* before = 0;
+       Location* after = 0;
+
+       const nframes64_t one_second = session->frame_rate();
+       const nframes64_t one_minute = session->frame_rate() * 60;
+       const nframes64_t one_smpte_second = (nframes64_t)(rint(session->smpte_frames_per_second()) * session->frames_per_smpte_frame());
+       nframes64_t one_smpte_minute = (nframes64_t)(rint(session->smpte_frames_per_second()) * session->frames_per_smpte_frame() * 60);
+       nframes64_t presnap = start;
 
+       switch (snap_type) {
        case SnapToCDFrame:
-               if (direction) {
-                       start = (nframes_t) ceil ((double) start / (one_second / 75)) * (one_second / 75);
+               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);
                } else {
-                       start = (nframes_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
+                       start = (nframes64_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
                }
                break;
 
        case SnapToSMPTEFrame:
-               if (fmod((double)start, (double)session->frames_per_smpte_frame()) > (session->frames_per_smpte_frame() / 2)) {
-                       start = (nframes_t) (ceil ((double) start / session->frames_per_smpte_frame()) * session->frames_per_smpte_frame());
+               if (((direction == 0) && (fmod((double)start, (double)session->frames_per_smpte_frame()) > (session->frames_per_smpte_frame() / 2))) || (direction > 0)) {
+                       start = (nframes64_t) (ceil ((double) start / session->frames_per_smpte_frame()) * session->frames_per_smpte_frame());
                } else {
-                       start = (nframes_t) (floor ((double) start / session->frames_per_smpte_frame()) *  session->frames_per_smpte_frame());
+                       start = (nframes64_t) (floor ((double) start / session->frames_per_smpte_frame()) *  session->frames_per_smpte_frame());
                }
                break;
 
@@ -2101,10 +2713,10 @@ Editor::snap_to (nframes_t& start, int32_t direction, bool for_mark)
                } else {
                        start -= session->smpte_offset ();
                }    
-               if (start % one_smpte_second > one_smpte_second / 2) {
-                       start = (nframes_t) ceil ((double) start / one_smpte_second) * one_smpte_second;
+               if (((direction == 0) && (start % one_smpte_second > one_smpte_second / 2)) || direction > 0) {
+                       start = (nframes64_t) ceil ((double) start / one_smpte_second) * one_smpte_second;
                } else {
-                       start = (nframes_t) floor ((double) start / one_smpte_second) * one_smpte_second;
+                       start = (nframes64_t) floor ((double) start / one_smpte_second) * one_smpte_second;
                }
                
                if (session->smpte_offset_negative())
@@ -2122,10 +2734,10 @@ Editor::snap_to (nframes_t& start, int32_t direction, bool for_mark)
                } else {
                        start -= session->smpte_offset ();
                }
-               if (start % one_smpte_minute > one_smpte_minute / 2) {
-                       start = (nframes_t) ceil ((double) start / one_smpte_minute) * one_smpte_minute;
+               if (((direction == 0) && (start % one_smpte_minute > one_smpte_minute / 2)) || direction > 0) {
+                       start = (nframes64_t) ceil ((double) start / one_smpte_minute) * one_smpte_minute;
                } else {
-                       start = (nframes_t) floor ((double) start / one_smpte_minute) * one_smpte_minute;
+                       start = (nframes64_t) floor ((double) start / one_smpte_minute) * one_smpte_minute;
                }
                if (session->smpte_offset_negative())
                {
@@ -2136,18 +2748,18 @@ Editor::snap_to (nframes_t& start, int32_t direction, bool for_mark)
                break;
                
        case SnapToSeconds:
-               if (start % one_second > one_second / 2) {
-                       start = (nframes_t) ceil ((double) start / one_second) * one_second;
+               if (((direction == 0) && (start % one_second > one_second / 2)) || (direction > 0)) {
+                       start = (nframes64_t) ceil ((double) start / one_second) * one_second;
                } else {
-                       start = (nframes_t) floor ((double) start / one_second) * one_second;
+                       start = (nframes64_t) floor ((double) start / one_second) * one_second;
                }
                break;
                
        case SnapToMinutes:
-               if (start % one_minute > one_minute / 2) {
-                       start = (nframes_t) ceil ((double) start / one_minute) * one_minute;
+               if (((direction == 0) && (start % one_minute > one_minute / 2)) || (direction > 0)) {
+                       start = (nframes64_t) ceil ((double) start / one_minute) * one_minute;
                } else {
-                       start = (nframes_t) floor ((double) start / one_minute) * one_minute;
+                       start = (nframes64_t) floor ((double) start / one_minute) * one_minute;
                }
                break;
 
@@ -2160,27 +2772,23 @@ Editor::snap_to (nframes_t& start, int32_t direction, bool for_mark)
                break;
 
        case SnapToAThirtysecondBeat:
-                start = session->tempo_map().round_to_beat_subdivision (start, 32);
-                break;
+               start = session->tempo_map().round_to_beat_subdivision (start, 32);
+               break;
 
        case SnapToASixteenthBeat:
-                start = session->tempo_map().round_to_beat_subdivision (start, 16);
-                break;
+               start = session->tempo_map().round_to_beat_subdivision (start, 16);
+               break;
 
        case SnapToAEighthBeat:
-                start = session->tempo_map().round_to_beat_subdivision (start, 8);
-                break;
+               start = session->tempo_map().round_to_beat_subdivision (start, 8);
+               break;
 
        case SnapToAQuarterBeat:
-                start = session->tempo_map().round_to_beat_subdivision (start, 4);
-                break;
-
-        case SnapToAThirdBeat:
-                start = session->tempo_map().round_to_beat_subdivision (start, 3);
-                break;
+               start = session->tempo_map().round_to_beat_subdivision (start, 4);
+               break;
 
-       case SnapToEditCursor:
-               start = edit_cursor->current_frame;
+       case SnapToAThirdBeat:
+               start = session->tempo_map().round_to_beat_subdivision (start, 3);
                break;
 
        case SnapToMark:
@@ -2228,7 +2836,7 @@ Editor::snap_to (nframes_t& start, int32_t direction, bool for_mark)
        case SnapToRegionSync:
        case SnapToRegionBoundary:
                if (!region_boundary_cache.empty()) {
-                       vector<nframes_t>::iterator i;
+                       vector<nframes64_t>::iterator i;
 
                        if (direction > 0) {
                                i = std::upper_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
@@ -2237,11 +2845,19 @@ Editor::snap_to (nframes_t& start, int32_t direction, bool for_mark)
                        }
                        
                        if (i != region_boundary_cache.end()) {
+
+                               /* lower bound doesn't quite to the right thing for our purposes */
+
+                               if (direction < 0 && i != region_boundary_cache.begin()) {
+                                       --i;
+                               }
+
                                start = *i;
+
                        } else {
                                start = region_boundary_cache.back();
                        }
-               }
+               } 
                break;
        }
 
@@ -2263,32 +2879,81 @@ Editor::snap_to (nframes_t& start, int32_t direction, bool for_mark)
                }
                
        default:
+               /* handled at entry */
                return;
                
        }
 }
 
-void
-Editor::setup_toolbar ()
+double
+Editor::snap_length_beats (nframes64_t start)
 {
-       string pixmap_path;
+       if (!session) {
+               return 1.0;
+       }
 
-       const guint32 FUDGE = 18; // Combo's are stupid - they steal space from the entry for the button
+       /* FIXME: This could/should also work with non-tempo based snap settings (ie seconds) */
 
+       switch (snap_type) {
+       case SnapToBar:
+               return session->tempo_map().meter_at(start).beats_per_bar();
 
-       /* Mode Buttons (tool selection) */
+       case SnapToBeat:
+               return 1.0;
 
-       vector<ToggleButton *> mouse_mode_buttons;
+       case SnapToAThirtysecondBeat:
+               return 1.0 / (double)32.0;
+               break;
 
-       mouse_move_button.add (*(manage (new Image (::get_icon("tool_object")))));
+       case SnapToASixteenthBeat:
+               return 1.0 / (double)16.0;
+               break;
+
+       case SnapToAEighthBeat:
+               return 1.0 / (double)8.0;
+               break;
+
+       case SnapToAQuarterBeat:
+               return 1.0 / (double)4.0;
+               break;
+
+       case SnapToAThirdBeat:
+               return 1.0 / (double)3.0;
+
+       default:
+               return 1.0;
+       }
+}
+
+void
+Editor::setup_toolbar ()
+{
+       string pixmap_path;
+
+#ifdef GTKOSX
+       const guint32 FUDGE = 38; // Combo's are stupid - they steal space from the entry for the button
+#else
+       const guint32 FUDGE = 18; // Combo's are stupid - they steal space from the entry for the button
+#endif
+
+       /* Mode Buttons (tool selection) */
+
+       vector<ToggleButton *> mouse_mode_buttons;
+
+       mouse_move_button.add (*(manage (new Image (::get_icon("tool_object")))));
        mouse_move_button.set_relief(Gtk::RELIEF_NONE);
        mouse_mode_buttons.push_back (&mouse_move_button);
-       mouse_select_button.add (*(manage (new Image (get_xpm("tool_range.xpm")))));
-       mouse_select_button.set_relief(Gtk::RELIEF_NONE);
-       mouse_mode_buttons.push_back (&mouse_select_button);
-       mouse_gain_button.add (*(manage (new Image (::get_icon("tool_gain")))));
-       mouse_gain_button.set_relief(Gtk::RELIEF_NONE);
-       mouse_mode_buttons.push_back (&mouse_gain_button);
+
+       if (!Profile->get_sae()) {
+               mouse_select_button.add (*(manage (new Image (get_xpm("tool_range.xpm")))));
+               mouse_select_button.set_relief(Gtk::RELIEF_NONE);
+               mouse_mode_buttons.push_back (&mouse_select_button);
+
+               mouse_gain_button.add (*(manage (new Image (::get_icon("tool_gain")))));
+               mouse_gain_button.set_relief(Gtk::RELIEF_NONE);
+               mouse_mode_buttons.push_back (&mouse_gain_button);
+       }
+
        mouse_zoom_button.add (*(manage (new Image (::get_icon("tool_zoom")))));
        mouse_zoom_button.set_relief(Gtk::RELIEF_NONE);
        mouse_mode_buttons.push_back (&mouse_zoom_button);
@@ -2297,6 +2962,9 @@ Editor::setup_toolbar ()
        mouse_mode_buttons.push_back (&mouse_timefx_button);
        mouse_audition_button.add (*(manage (new Image (::get_icon("tool_audition")))));
        mouse_audition_button.set_relief(Gtk::RELIEF_NONE);
+       mouse_note_button.add (*(manage (new Image (::get_icon("tool_note")))));
+       mouse_note_button.set_relief(Gtk::RELIEF_NONE);
+       mouse_mode_buttons.push_back (&mouse_note_button);
        mouse_mode_buttons.push_back (&mouse_audition_button);
        
        mouse_mode_button_set = new GroupedButtons (mouse_mode_buttons);
@@ -2306,16 +2974,22 @@ Editor::setup_toolbar ()
        mode_box->set_spacing(4);
        mouse_mode_button_box.set_spacing(1);
        mouse_mode_button_box.pack_start(mouse_move_button, true, true);
-       mouse_mode_button_box.pack_start(mouse_select_button, true, true);
+       if (!Profile->get_sae()) {
+               mouse_mode_button_box.pack_start(mouse_select_button, true, true);
+       }
        mouse_mode_button_box.pack_start(mouse_zoom_button, true, true);
-       mouse_mode_button_box.pack_start(mouse_gain_button, true, true);
+       if (!Profile->get_sae()) {
+               mouse_mode_button_box.pack_start(mouse_gain_button, true, true);
+       }
        mouse_mode_button_box.pack_start(mouse_timefx_button, true, true);
        mouse_mode_button_box.pack_start(mouse_audition_button, true, true);
+       mouse_mode_button_box.pack_start(mouse_note_button, true, true);
        mouse_mode_button_box.set_homogeneous(true);
 
        vector<string> edit_mode_strings;
-       edit_mode_strings.push_back (edit_mode_to_string (Splice));
        edit_mode_strings.push_back (edit_mode_to_string (Slide));
+       edit_mode_strings.push_back (edit_mode_to_string (Splice));
+       edit_mode_strings.push_back (edit_mode_to_string (Lock));
 
        edit_mode_selector.set_name ("EditModeSelector");
        Gtkmm2ext::set_size_request_to_display_given_text (edit_mode_selector, longest (edit_mode_strings).c_str(), 2+FUDGE, 10);
@@ -2343,6 +3017,7 @@ Editor::setup_toolbar ()
        mouse_zoom_button.set_name ("MouseModeButton");
        mouse_timefx_button.set_name ("MouseModeButton");
        mouse_audition_button.set_name ("MouseModeButton");
+       mouse_note_button.set_name ("MouseModeButton");
 
        ARDOUR_UI::instance()->tooltips().set_tip (mouse_move_button, _("Select/Move Objects"));
        ARDOUR_UI::instance()->tooltips().set_tip (mouse_select_button, _("Select/Move Ranges"));
@@ -2350,6 +3025,7 @@ Editor::setup_toolbar ()
        ARDOUR_UI::instance()->tooltips().set_tip (mouse_zoom_button, _("Select Zoom Range"));
        ARDOUR_UI::instance()->tooltips().set_tip (mouse_timefx_button, _("Stretch/Shrink Regions"));
        ARDOUR_UI::instance()->tooltips().set_tip (mouse_audition_button, _("Listen to Specific Regions"));
+       ARDOUR_UI::instance()->tooltips().set_tip (mouse_note_button, _("Edit MIDI Notes"));
 
        mouse_move_button.unset_flags (CAN_FOCUS);
        mouse_select_button.unset_flags (CAN_FOCUS);
@@ -2357,6 +3033,7 @@ Editor::setup_toolbar ()
        mouse_zoom_button.unset_flags (CAN_FOCUS);
        mouse_timefx_button.unset_flags (CAN_FOCUS);
        mouse_audition_button.unset_flags (CAN_FOCUS);
+       mouse_note_button.unset_flags (CAN_FOCUS);
 
        mouse_select_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseRange));
        mouse_select_button.signal_button_release_event().connect (mem_fun(*this, &Editor::mouse_select_button_release));
@@ -2366,6 +3043,7 @@ Editor::setup_toolbar ()
        mouse_zoom_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseZoom));
        mouse_timefx_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseTimeFX));
        mouse_audition_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseAudition));
+       mouse_note_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseNote));
 
        // mouse_move_button.set_active (true);
        
@@ -2373,7 +3051,7 @@ Editor::setup_toolbar ()
        /* Zoom */
        
        zoom_box.set_spacing (1);
-       zoom_box.set_border_width (2);
+       zoom_box.set_border_width (0);
 
        zoom_in_button.set_name ("EditorTimeButton");
        zoom_in_button.set_size_request(-1,16);
@@ -2394,7 +3072,7 @@ Editor::setup_toolbar ()
        ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_full_button, _("Zoom to Session"));
 
        zoom_focus_selector.set_name ("ZoomFocusSelector");
-       Gtkmm2ext::set_size_request_to_display_given_text (zoom_focus_selector, "Edit Cursor", FUDGE, 0);
+       Gtkmm2ext::set_size_request_to_display_given_text (zoom_focus_selector, _("Playhead"), FUDGE, 0);
        set_popdown_strings (zoom_focus_selector, zoom_focus_strings);
        zoom_focus_selector.signal_changed().connect (mem_fun(*this, &Editor::zoom_focus_selection_done));
        ARDOUR_UI::instance()->tooltips().set_tip (zoom_focus_selector, _("Zoom focus"));
@@ -2404,26 +3082,31 @@ Editor::setup_toolbar ()
        zoom_box.pack_start (zoom_in_button, false, false);
        zoom_box.pack_start (zoom_out_full_button, false, false);
 
-       /* Edit Cursor / Snap */
-
        snap_box.set_spacing (1);
        snap_box.set_border_width (2);
 
        snap_type_selector.set_name ("SnapTypeSelector");
-       Gtkmm2ext::set_size_request_to_display_given_text (snap_type_selector, "SMPTE Seconds", 2+FUDGE, 10);
+       Gtkmm2ext::set_size_request_to_display_given_text (snap_type_selector, _("SMPTE Seconds"), 2+FUDGE, 10);
        set_popdown_strings (snap_type_selector, snap_type_strings);
        snap_type_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_type_selection_done));
-       ARDOUR_UI::instance()->tooltips().set_tip (snap_type_selector, _("Unit to snap cursors and ranges to"));
+       ARDOUR_UI::instance()->tooltips().set_tip (snap_type_selector, _("Snap/Grid Units"));
 
        snap_mode_selector.set_name ("SnapModeSelector");
-       Gtkmm2ext::set_size_request_to_display_given_text (snap_mode_selector, "Magnetic Snap", 2+FUDGE, 10);
+       Gtkmm2ext::set_size_request_to_display_given_text (snap_mode_selector, _("Magnetic Snap"), 2+FUDGE, 10);
        set_popdown_strings (snap_mode_selector, snap_mode_strings);
        snap_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_mode_selection_done));
+       ARDOUR_UI::instance()->tooltips().set_tip (snap_mode_selector, _("Snap/Grid Mode"));
+
+       edit_point_selector.set_name ("SnapModeSelector");
+       Gtkmm2ext::set_size_request_to_display_given_text (edit_point_selector, _("Playhead"), 2+FUDGE, 10);
+       set_popdown_strings (edit_point_selector, edit_point_strings);
+       edit_point_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_point_selection_done));
+       ARDOUR_UI::instance()->tooltips().set_tip (edit_point_selector, _("Edit point"));
 
-       snap_box.pack_start (edit_cursor_clock, false, false);
+       snap_box.pack_start (edit_point_clock, false, false);
        snap_box.pack_start (snap_mode_selector, false, false);
        snap_box.pack_start (snap_type_selector, false, false);
-
+       snap_box.pack_start (edit_point_selector, false, false);
 
        /* Nudge */
 
@@ -2431,8 +3114,8 @@ Editor::setup_toolbar ()
        nudge_box->set_spacing(1);
        nudge_box->set_border_width (2);
 
-       nudge_forward_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::nudge_forward), false));
-       nudge_backward_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::nudge_backward), false));
+       nudge_forward_button.signal_button_release_event().connect (mem_fun(*this, &Editor::nudge_forward_release), false);
+       nudge_backward_button.signal_button_release_event().connect (mem_fun(*this, &Editor::nudge_backward_release), false);
 
        nudge_box->pack_start (nudge_backward_button, false, false);
        nudge_box->pack_start (nudge_forward_button, false, false);
@@ -2441,10 +3124,10 @@ Editor::setup_toolbar ()
 
        /* Pack everything in... */
 
-       HBox* hbox = new HBox;
+       HBox* hbox = manage (new HBox);
        hbox->set_spacing(10);
 
-       tools_tearoff = new TearOff (*hbox);
+       tools_tearoff = manage (new TearOff (*hbox));
        tools_tearoff->set_name ("MouseModeBase");
 
        tools_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox), 
@@ -2477,6 +3160,98 @@ Editor::setup_toolbar ()
        toolbar_frame.add (toolbar_base);
 }
 
+
+void
+Editor::setup_midi_toolbar ()
+{
+       string pixmap_path;
+
+       /* Mode Buttons (tool selection) */
+
+       vector<ToggleButton *> midi_tool_buttons;
+
+       midi_tool_pencil_button.add (*(manage (new Image (::get_icon("midi_tool_pencil")))));
+       midi_tool_pencil_button.set_relief(Gtk::RELIEF_NONE);
+       midi_tool_buttons.push_back (&midi_tool_pencil_button);
+       midi_tool_select_button.add (*(manage (new Image (::get_icon("midi_tool_select")))));
+       midi_tool_select_button.set_relief(Gtk::RELIEF_NONE);
+       midi_tool_buttons.push_back (&midi_tool_select_button);
+       midi_tool_resize_button.add (*(manage (new Image (::get_icon("strip_width")))));
+       midi_tool_resize_button.set_relief(Gtk::RELIEF_NONE);
+       midi_tool_buttons.push_back (&midi_tool_resize_button);
+       midi_tool_erase_button.add (*(manage (new Image (::get_icon("midi_tool_erase")))));
+       midi_tool_erase_button.set_relief(Gtk::RELIEF_NONE);
+       midi_tool_buttons.push_back (&midi_tool_erase_button);
+
+       midi_tool_pencil_button.set_active(true);
+       
+       midi_tool_button_set = new GroupedButtons (midi_tool_buttons);
+
+       midi_tool_button_box.set_border_width (2);
+       midi_tool_button_box.set_spacing(1);
+       midi_tool_button_box.pack_start(midi_tool_pencil_button, true, true);
+       midi_tool_button_box.pack_start(midi_tool_select_button, true, true);
+       midi_tool_button_box.pack_start(midi_tool_resize_button, true, true);
+       midi_tool_button_box.pack_start(midi_tool_erase_button, true, true);
+       midi_tool_button_box.set_homogeneous(true);
+
+       midi_tool_pencil_button.set_name ("MouseModeButton");
+       midi_tool_select_button.set_name ("MouseModeButton");
+       midi_tool_resize_button.set_name ("MouseModeButton");
+       midi_tool_erase_button.set_name ("MouseModeButton");
+
+       ARDOUR_UI::instance()->tooltips().set_tip (midi_tool_pencil_button, _("Add/Move/Stretch Notes"));
+       ARDOUR_UI::instance()->tooltips().set_tip (midi_tool_select_button, _("Select/Move Notes"));
+       ARDOUR_UI::instance()->tooltips().set_tip (midi_tool_resize_button, _("Resize Notes"));
+       ARDOUR_UI::instance()->tooltips().set_tip (midi_tool_erase_button, _("Erase Notes"));
+
+       midi_tool_pencil_button.unset_flags (CAN_FOCUS);
+       midi_tool_select_button.unset_flags (CAN_FOCUS);
+       midi_tool_resize_button.unset_flags (CAN_FOCUS);
+       midi_tool_erase_button.unset_flags (CAN_FOCUS);
+       
+       midi_tool_pencil_button.signal_toggled().connect (bind (mem_fun(*this,
+                               &Editor::midi_edit_mode_toggled), Editing::MidiEditPencil));
+       midi_tool_select_button.signal_toggled().connect (bind (mem_fun(*this,
+                               &Editor::midi_edit_mode_toggled), Editing::MidiEditSelect));
+       midi_tool_resize_button.signal_toggled().connect (bind (mem_fun(*this,
+                               &Editor::midi_edit_mode_toggled), Editing::MidiEditResize));
+       midi_tool_erase_button.signal_toggled().connect (bind (mem_fun(*this,
+                               &Editor::midi_edit_mode_toggled), Editing::MidiEditErase));
+       
+       /* Pack everything in... */
+
+       midi_tools_tearoff = manage (new TearOff (midi_tool_button_box));
+       midi_tools_tearoff->set_name ("MouseModeBase");
+
+       /*
+       midi_tools_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&midi_toolbar_hbox), 
+                                            &midi_tools_tearoff->tearoff_window()));
+       midi_tools_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&midi_toolbar_hbox), 
+                                            &midi_tools_tearoff->tearoff_window(), 0));
+       midi_tools_tearoff->Hidden.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&midi_toolbar_hbox), 
+                                            &midi_tools_tearoff->tearoff_window()));
+       midi_tools_tearoff->Visible.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&midi_toolbar_hbox), 
+                                             &midi_tools_tearoff->tearoff_window(), 0));
+       */
+
+       midi_toolbar_hbox.set_spacing (10);
+       midi_toolbar_hbox.set_border_width (1);
+
+       midi_toolbar_hbox.pack_start (*midi_tools_tearoff, false, true);
+
+       midi_tool_button_box.show_all ();
+       midi_toolbar_hbox.show_all();
+       midi_tools_tearoff->show_all();
+       
+       midi_toolbar_base.set_name ("ToolBarBase");
+       midi_toolbar_base.add (midi_toolbar_hbox);
+
+       midi_toolbar_frame.set_shadow_type (SHADOW_OUT);
+       midi_toolbar_frame.set_name ("BaseFrame");
+       midi_toolbar_frame.add (midi_toolbar_base);
+}
+
 int
 Editor::convert_drop_to_paths (vector<ustring>& paths, 
                               const RefPtr<Gdk::DragContext>& context,
@@ -2494,7 +3269,7 @@ Editor::convert_drop_to_paths (vector<ustring>& paths,
        vector<ustring> uris = data.get_uris();
 
        if (uris.empty()) {
-               
+
                /* This is seriously fucked up. Nautilus doesn't say that its URI lists
                   are actually URI lists. So do it by hand.
                */
@@ -2544,10 +3319,34 @@ Editor::convert_drop_to_paths (vector<ustring>& paths,
        }
        
        for (vector<ustring>::iterator i = uris.begin(); i != uris.end(); ++i) {
+
                if ((*i).substr (0,7) == "file://") {
-                       string p = *i;
+                       
+                       ustring p = *i;
                         PBD::url_decode (p);
-                       paths.push_back (p.substr (7));
+
+                       // scan forward past three slashes
+                       
+                       ustring::size_type slashcnt = 0;
+                       ustring::size_type n = 0;
+                       ustring::iterator x = p.begin();
+
+                       while (slashcnt < 3 && x != p.end()) {
+                               if ((*x) == '/') {
+                                       slashcnt++;
+                               } else if (slashcnt == 3) {
+                                       break;
+                               }
+                               ++n;
+                               ++x;
+                       }
+
+                       if (slashcnt != 3 || x == p.end()) {
+                               error << _("malformed URL passed to drag-n-drop code") << endmsg;
+                               continue;
+                       }
+
+                       paths.push_back (p.substr (n - 1));
                }
        }
 
@@ -2574,9 +3373,9 @@ Editor::map_transport_state ()
 
 /* UNDO/REDO */
 
-Editor::State::State ()
+Editor::State::State (PublicEditor const * e)
 {
-       selection = new Selection;
+       selection = new Selection (e);
 }
 
 Editor::State::~State ()
@@ -2587,7 +3386,7 @@ Editor::State::~State ()
 UndoAction
 Editor::get_memento () const
 {
-       State *state = new State;
+       State *state = new State (this);
 
        store_state (*state);
        return bind (mem_fun (*(const_cast<Editor*>(this)), &Editor::restore_state), state);
@@ -2679,77 +3478,120 @@ Editor::history_changed ()
 }
 
 void
-Editor::duplicate_dialog (bool dup_region)
+Editor::duplicate_dialog (bool with_dialog)
 {
-       if (selection->regions.empty() && (selection->time.length() == 0)) {
-               return;
-       }
-
-       ArdourDialog win ("duplicate dialog");
-       Label  label (_("Duplicate how many times?"));
-       Adjustment adjustment (1.0, 1.0, 1000000.0, 1.0, 5.0);
-       SpinButton spinner (adjustment);
-
-       win.get_vbox()->set_spacing (12);
-       win.get_vbox()->pack_start (label);
-
-       /* dialogs have ::add_action_widget() but that puts the spinner in the wrong
-          place, visually. so do this by hand.
-       */
+       float times = 1.0f;
 
-       win.get_vbox()->pack_start (spinner);
-       spinner.signal_activate().connect (sigc::bind (mem_fun (win, &ArdourDialog::response), RESPONSE_ACCEPT));
+       if (mouse_mode == MouseRange) {
+               if (selection->time.length() == 0) {
+                       return;
+               }
+       }
 
-       label.show ();
-       spinner.show ();
+       RegionSelection rs;
+       get_regions_for_action (rs);
+       
+       if (mouse_mode != MouseRange) {
 
-       win.add_button (Stock::OK, RESPONSE_ACCEPT);
-       win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
+               if (rs.empty()) {
+                       return;
+               }
+       }
 
-       win.set_position (WIN_POS_MOUSE);
+       if (with_dialog) {
 
-       spinner.grab_focus ();
+               ArdourDialog win ("Duplication Dialog");
+               Label  label (_("Number of Duplications:"));
+               Adjustment adjustment (1.0, 1.0, 1000000.0, 1.0, 5.0);
+               SpinButton spinner (adjustment, 0.0, 1);
+               HBox hbox;
+               
+               win.get_vbox()->set_spacing (12);
+               win.get_vbox()->pack_start (hbox);
+               hbox.set_border_width (6);
+               hbox.pack_start (label, PACK_EXPAND_PADDING, 12);
+               
+               /* dialogs have ::add_action_widget() but that puts the spinner in the wrong
+                  place, visually. so do this by hand.
+               */
+               
+               hbox.pack_start (spinner, PACK_EXPAND_PADDING, 12);
+               spinner.signal_activate().connect (sigc::bind (mem_fun (win, &ArdourDialog::response), RESPONSE_ACCEPT));
+               spinner.grab_focus();
 
-       switch (win.run ()) {
-       case RESPONSE_ACCEPT:
-               break;
-       default:
-               return;
+               hbox.show ();
+               label.show ();
+               spinner.show ();
+               
+               win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
+               win.add_button (_("Duplicate"), RESPONSE_ACCEPT);
+               win.set_default_response (RESPONSE_ACCEPT);
+               
+               win.set_position (WIN_POS_MOUSE);
+               
+               spinner.grab_focus ();
+               
+               switch (win.run ()) {
+               case RESPONSE_ACCEPT:
+                       break;
+               default:
+                       return;
+               }
+               
+               times = adjustment.get_value();
        }
 
-       float times = adjustment.get_value();
-
-       if (!selection->regions.empty()) {
-               duplicate_some_regions (selection->regions, times);
-       } else {
+       if (mouse_mode == MouseRange) {
                duplicate_selection (times);
+       } else {
+               duplicate_some_regions (rs, times);
        }
 }
 
 void
 Editor::show_verbose_canvas_cursor ()
 {
-        verbose_canvas_cursor->raise_to_top();
-        verbose_canvas_cursor->show();
+       verbose_canvas_cursor->raise_to_top();
+       verbose_canvas_cursor->show();
        verbose_cursor_visible = true;
 }
 
 void
 Editor::hide_verbose_canvas_cursor ()
 {
-        verbose_canvas_cursor->hide();
+       verbose_canvas_cursor->hide();
        verbose_cursor_visible = false;
 }
 
+double
+Editor::clamp_verbose_cursor_x (double x)
+{
+       if (x < 0) {
+               x = 0;
+       } else {
+               x = min (canvas_width - 200.0, x);
+       }
+       return x;
+}
+
+double
+Editor::clamp_verbose_cursor_y (double y)
+{
+       if (y < canvas_timebars_vsize) {
+               y = canvas_timebars_vsize;
+       } else {
+               y = min (canvas_height - 50, y);
+       }
+       return y;
+}
+
 void
 Editor::set_verbose_canvas_cursor (const string & txt, double x, double y)
 {
-       /* XXX get origin of canvas relative to root window,
-          add x and y and check compared to gdk_screen_{width,height}
-       */
        verbose_canvas_cursor->property_text() = txt.c_str();
-       verbose_canvas_cursor->property_x() = x;
-       verbose_canvas_cursor->property_y() = y;
+       /* don't get too close to the edge */
+       verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (x);
+       verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (y);
 }
 
 void
@@ -2758,6 +3600,28 @@ Editor::set_verbose_canvas_cursor_text (const string & txt)
        verbose_canvas_cursor->property_text() = txt.c_str();
 }
 
+void
+Editor::set_edit_mode (EditMode m)
+{
+       Config->set_edit_mode (m);
+}
+
+void
+Editor::cycle_edit_mode ()
+{
+       switch (Config->get_edit_mode()) {
+       case Slide:
+               Config->set_edit_mode (Splice);
+               break;
+       case Splice:
+               Config->set_edit_mode (Lock);
+               break;
+       case Lock:
+               Config->set_edit_mode (Slide);
+               break;
+       }
+}
+
 void
 Editor::edit_mode_selection_done ()
 {
@@ -2772,6 +3636,8 @@ Editor::edit_mode_selection_done ()
                mode = Splice;
        } else if (choice == _("Slide Edit")) {
                mode = Slide;
+       } else if (choice == _("Lock Edit")) {
+               mode = Lock;
        }
 
        Config->set_edit_mode (mode);
@@ -2781,7 +3647,7 @@ void
 Editor::snap_type_selection_done ()
 {
        string choice = snap_type_selector.get_active_text();
-       SnapType snaptype = SnapToFrame;
+       SnapType snaptype = SnapToBeat;
 
        if (choice == _("Beats/3")) {
                snaptype = SnapToAThirdBeat;
@@ -2799,8 +3665,6 @@ Editor::snap_type_selection_done ()
                snaptype = SnapToBar;
        } else if (choice == _("Marks")) {
                snaptype = SnapToMark;
-       } else if (choice == _("Edit Cursor")) {
-               snaptype = SnapToEditCursor;
        } else if (choice == _("Region starts")) {
                snaptype = SnapToRegionStart;
        } else if (choice == _("Region ends")) {
@@ -2821,8 +3685,6 @@ Editor::snap_type_selection_done ()
                snaptype = SnapToSeconds;
        } else if (choice == _("Minutes")) {
                snaptype = SnapToMinutes;
-       } else if (choice == _("None")) {
-               snaptype = SnapToFrame;
        }
 
        RefPtr<RadioAction> ract = snap_type_action (snaptype);
@@ -2837,7 +3699,9 @@ Editor::snap_mode_selection_done ()
        string choice = snap_mode_selector.get_active_text();
        SnapMode mode = SnapNormal;
 
-       if (choice == _("Normal")) {
+       if (choice == _("No Grid")) {
+               mode = SnapOff;
+       } else if (choice == _("Grid")) {
                mode = SnapNormal;
        } else if (choice == _("Magnetic")) {
                mode = SnapMagnetic;
@@ -2850,6 +3714,47 @@ Editor::snap_mode_selection_done ()
        }
 }
 
+void
+Editor::cycle_edit_point (bool with_marker)
+{
+       switch (_edit_point) {
+       case EditAtMouse:
+               set_edit_point_preference (EditAtPlayhead);
+               break;
+       case EditAtPlayhead:
+               if (with_marker) {
+                       set_edit_point_preference (EditAtSelectedMarker);
+               } else {
+                       set_edit_point_preference (EditAtMouse);
+               }
+               break;
+       case EditAtSelectedMarker:
+               set_edit_point_preference (EditAtMouse);
+               break;
+       }
+}
+
+void
+Editor::edit_point_selection_done ()
+{
+       string choice = edit_point_selector.get_active_text();
+       EditPoint ep = EditAtSelectedMarker;
+
+       if (choice == _("Marker")) {
+               set_edit_point_preference (EditAtSelectedMarker);
+       } else if (choice == _("Playhead")) {
+               set_edit_point_preference (EditAtPlayhead);
+       } else {
+               set_edit_point_preference (EditAtMouse);
+       }
+
+       RefPtr<RadioAction> ract = edit_point_action (ep);
+
+       if (ract) {
+               ract->set_active (true);
+       }
+}
+
 void
 Editor::zoom_focus_selection_done ()
 {
@@ -2862,10 +3767,16 @@ Editor::zoom_focus_selection_done ()
                focus_type = ZoomFocusRight;
        } else if (choice == _("Center")) {
                focus_type = ZoomFocusCenter;
-       } else if (choice == _("Playhead")) {
+       } else if (choice == _("Play")) {
                focus_type = ZoomFocusPlayhead;
-       } else if (choice == _("Edit Cursor")) {
+       } else if (choice == _("Edit")) {
+               focus_type = ZoomFocusEdit;
+       } else if (choice == _("Active Mark")) {
                focus_type = ZoomFocusEdit;
+       } else if (choice == _("Active Mark")) {
+               focus_type = ZoomFocusEdit;
+       } else {
+               focus_type = ZoomFocusMouse;
        } 
        
        RefPtr<RadioAction> ract = zoom_focus_action (focus_type);
@@ -2912,7 +3823,7 @@ Editor::get_valid_views (TimeAxisView* track, RouteGroup* group)
                        v->push_back (*i);
                }
 
-       } else if (track != 0 && group == 0 || (track != 0 && group != 0 && !group->is_active())) {
+       } else if ((track != 0 && group == 0) || (track != 0 && group != 0 && !group->is_active())) {
                
                /* just the view for this track
                 */
@@ -2994,7 +3905,7 @@ Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
                } else {
                        pos = atoi (prop->value());
                }
-               
+
                if ((done = GTK_WIDGET(edit_pane.gobj())->allocation.width > pos)) {
                        edit_pane.set_position (pos);
                        pre_maximal_pane_position = pos;
@@ -3102,10 +4013,10 @@ Editor::playlist_selector () const
        return *_playlist_selector;
 }
 
-nframes_t
-Editor::get_nudge_distance (nframes_t pos, nframes_t& next)
+nframes64_t
+Editor::get_nudge_distance (nframes64_t pos, nframes64_t& next)
 {
-       nframes_t ret;
+       nframes64_t ret;
 
        ret = nudge_clock.current_duration (pos);
        next = ret + 1; /* XXXX fix me */
@@ -3117,7 +4028,8 @@ void
 Editor::end_location_changed (Location* location)
 {
        ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::end_location_changed), location));
-       reset_scrolling_region ();
+       //reset_scrolling_region ();
+       horizontal_adjustment.set_upper ( location->start());
 }
 
 int
@@ -3157,7 +4069,7 @@ Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
 }
 
 bool
-Editor::audio_region_selection_covers (nframes_t where)
+Editor::audio_region_selection_covers (nframes64_t where)
 {
        for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
                if ((*a)->region()->covers (where)) {
@@ -3176,6 +4088,15 @@ Editor::prepare_for_cleanup ()
 
        selection->clear_regions ();
        selection->clear_playlists ();
+
+       no_region_list_redisplay = true;
+}
+
+void
+Editor::finish_cleanup ()
+{
+       no_region_list_redisplay = false;
+       redisplay_regions ();
 }
 
 Location*
@@ -3336,16 +4257,21 @@ Editor::redisplay_snapshots ()
                return;
        }
 
-       vector<string*>* states;
+       vector<sys::path> state_file_paths;
 
-       if ((states = session->possible_states()) == 0) {
-               return;
-       }
+       get_state_files_in_directory (session->session_directory().root_path(),
+                       state_file_paths);
+
+       if (state_file_paths.empty()) return;
+
+       vector<string> state_file_names(get_file_names_no_extension(state_file_paths));
 
        snapshot_display_model->clear ();
 
-       for (vector<string*>::iterator i = states->begin(); i != states->end(); ++i) {
-               string statename = *(*i);
+       for (vector<string>::iterator i = state_file_names.begin();
+                       i != state_file_names.end(); ++i)
+       {
+               string statename = (*i);
                TreeModel::Row row = *(snapshot_display_model->append());
                
                /* this lingers on in case we ever want to change the visible
@@ -3362,8 +4288,6 @@ Editor::redisplay_snapshots ()
                row[snapshot_display_columns.visible_name] = display_name;
                row[snapshot_display_columns.real_name] = statename;
        }
-
-       delete states;
 }
 
 void
@@ -3376,8 +4300,6 @@ Editor::session_state_saved (string snap_name)
 void
 Editor::maximise_editing_space ()
 {
-       initial_ruler_update_required = true;
-
        mouse_mode_tearoff->set_visible (false);
        tools_tearoff->set_visible (false);
 
@@ -3388,8 +4310,8 @@ Editor::maximise_editing_space ()
                post_maximal_pane_position = edit_pane.get_width();
        }
 
-
        fullscreen();
+
        if(post_maximal_editor_width) {
                edit_pane.set_position (post_maximal_pane_position - 
                        abs(post_maximal_editor_width - pre_maximal_editor_width));
@@ -3401,9 +4323,8 @@ Editor::maximise_editing_space ()
 void
 Editor::restore_editing_space ()
 {
-       initial_ruler_update_required = true;
-
        // user changed width of pane during fullscreen
+
        if(post_maximal_pane_position != edit_pane.get_position()) {
                post_maximal_pane_position = edit_pane.get_position();
        }
@@ -3414,33 +4335,48 @@ Editor::restore_editing_space ()
        tools_tearoff->set_visible (true);
        post_maximal_editor_width = this->get_width();
 
-
-       edit_pane.set_position (
-               pre_maximal_pane_position + abs(this->get_width() - pre_maximal_editor_width)
-       );
+       edit_pane.set_position (pre_maximal_pane_position + abs(this->get_width() - pre_maximal_editor_width));
 }
 
+/**
+ *  Make new playlists for a given track and also any others that belong
+ *  to the same active edit group.
+ *  @param v Track.
+ */
+
 void 
-Editor::new_playlists ()
+Editor::new_playlists (TimeAxisView* v)
 {
        begin_reversible_command (_("new playlists"));
-       mapover_tracks (mem_fun (*this, &Editor::mapped_use_new_playlist));
+       mapover_tracks (mem_fun (*this, &Editor::mapped_use_new_playlist), v);
        commit_reversible_command ();
 }
 
+/**
+ *  Use a copy of the current playlist for a given track and also any others that belong
+ *  to the same active edit group.
+ *  @param v Track.
+ */
+
 void
-Editor::copy_playlists ()
+Editor::copy_playlists (TimeAxisView* v)
 {
        begin_reversible_command (_("copy playlists"));
-       mapover_tracks (mem_fun (*this, &Editor::mapped_use_copy_playlist));
+       mapover_tracks (mem_fun (*this, &Editor::mapped_use_copy_playlist), v);
        commit_reversible_command ();
 }
 
+/**
+ *  Clear the current playlist for a given track and also any others that belong
+ *  to the same active edit group.
+ *  @param v Track.
+ */
+
 void 
-Editor::clear_playlists ()
+Editor::clear_playlists (TimeAxisView* v)
 {
        begin_reversible_command (_("clear playlists"));
-       mapover_tracks (mem_fun (*this, &Editor::mapped_clear_playlist));
+       mapover_tracks (mem_fun (*this, &Editor::mapped_clear_playlist), v);
        commit_reversible_command ();
 }
 
@@ -3468,9 +4404,17 @@ Editor::on_key_press_event (GdkEventKey* ev)
        return key_press_focus_accelerator_handler (*this, ev);
 }
 
+bool
+Editor::on_key_release_event (GdkEventKey* ev)
+{
+       return Gtk::Window::on_key_release_event (ev);
+       // return key_press_focus_accelerator_handler (*this, ev);
+}
+
 void
-Editor::reset_x_origin (nframes_t frame)
+Editor::reset_x_origin (nframes64_t frame)
 {
+       //cerr << "resetting x origin" << endl;
        queue_visual_change (frame);
 }
 
@@ -3481,17 +4425,102 @@ Editor::reset_zoom (double fpu)
 }
 
 void
-Editor::reposition_and_zoom (nframes_t frame, double fpu)
+Editor::reposition_and_zoom (nframes64_t frame, double fpu)
 {
+       //cerr << "Editor::reposition_and_zoom () called ha v:l:u:ps:fpu = " << horizontal_adjustment.get_value() << ":" << horizontal_adjustment.get_lower() << ":" << horizontal_adjustment.get_upper() << ":" << horizontal_adjustment.get_page_size() << ":" << frames_per_unit << endl;//DEBUG
        reset_x_origin (frame);
        reset_zoom (fpu);
+
+       if (!no_save_visual) {
+               undo_visual_stack.push_back (current_visual_state(false));
+       }
+}
+
+Editor::VisualState*
+Editor::current_visual_state (bool with_tracks)
+{
+       VisualState* vs = new VisualState;
+       vs->y_position = vertical_adjustment.get_value();
+       vs->frames_per_unit = frames_per_unit;
+       vs->leftmost_frame = leftmost_frame;
+       vs->zoom_focus = zoom_focus;
+       vs->zoomed_to_region = zoomed_to_region;
+
+       if (with_tracks) {
+               for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
+                       vs->track_states.push_back (TAVState ((*i), &(*i)->get_state()));
+               }
+       }
+       
+       return vs;
 }
 
 void
-Editor::set_frames_per_unit (double fpu)
+Editor::undo_visual_state ()
+{
+       if (undo_visual_stack.empty()) {
+               return;
+       }
+
+       VisualState* vs = undo_visual_stack.back();
+       undo_visual_stack.pop_back();
+       use_visual_state (*vs);
+       redo_visual_stack.push_back (vs);
+}
+
+void
+Editor::redo_visual_state ()
 {
-       nframes_t frames;
+       if (redo_visual_stack.empty()) {
+               return;
+       }
+
+       VisualState* vs = redo_visual_stack.back();
+       redo_visual_stack.pop_back();
+       use_visual_state (*vs);
+       undo_visual_stack.push_back (vs);
+}
 
+void
+Editor::swap_visual_state ()
+{
+       if (undo_visual_stack.empty()) {
+               redo_visual_state ();
+       } else {
+               undo_visual_state ();
+       }
+}
+
+void
+Editor::use_visual_state (VisualState& vs)
+{
+       no_save_visual = true;
+
+       vertical_adjustment.set_value (vs.y_position);
+
+       set_zoom_focus (vs.zoom_focus);
+       reposition_and_zoom (vs.leftmost_frame, vs.frames_per_unit);
+
+       for (list<TAVState>::iterator i = vs.track_states.begin(); i != vs.track_states.end(); ++i) {
+               TrackViewList::iterator t;
+
+               /* check if the track still exists - it could have been deleted */
+
+               if ((t = find (track_views.begin(), track_views.end(), i->first)) != track_views.end()) {
+                       (*t)->set_state (*(i->second));
+               }
+       }
+
+       if (!vs.track_states.empty()) {
+               update_route_visibility ();
+       } 
+       
+       no_save_visual = false;
+}
+
+void
+Editor::set_frames_per_unit (double fpu)
+{
        /* this is the core function that controls the zoom level of the canvas. it is called
           whenever one or more calls are made to reset_zoom(). it executes in an idle handler.
        */
@@ -3504,9 +4533,6 @@ Editor::set_frames_per_unit (double fpu)
                fpu = 2.0;
        }
 
-       // convert fpu to frame count
-
-       frames = (nframes_t) floor (fpu * canvas_width);
        
        /* don't allow zooms that fit more than the maximum number
           of frames into an 800 pixel wide space.
@@ -3516,13 +4542,18 @@ Editor::set_frames_per_unit (double fpu)
                return;
        }
 
-       if (fpu == frames_per_unit) {
-               return;
-       }
-
        frames_per_unit = fpu;
+       post_zoom ();
+}
 
-       if (frames != zoom_range_clock.current_duration()) {
+void
+Editor::post_zoom ()
+{
+       // convert fpu to frame count
+
+       nframes64_t frames = (nframes64_t) floor (frames_per_unit * canvas_width);
+
+       if (frames_per_unit != zoom_range_clock.current_duration()) {
                zoom_range_clock.set (frames);
        }
 
@@ -3541,21 +4572,24 @@ Editor::set_frames_per_unit (double fpu)
        ZoomChanged (); /* EMIT_SIGNAL */
 
        reset_hscrollbar_stepping ();
-       reset_scrolling_region ();
-       
-       if (edit_cursor) edit_cursor->set_position (edit_cursor->current_frame);
-       if (playhead_cursor) playhead_cursor->set_position (playhead_cursor->current_frame);
+       //reset_scrolling_region ();
+
+       if (playhead_cursor) {
+               playhead_cursor->set_position (playhead_cursor->current_frame);
+       }
 
        instant_save ();
 }
 
 void
-Editor::queue_visual_change (nframes_t where)
+Editor::queue_visual_change (nframes64_t where)
 {
-       pending_visual_change.pending = VisualChange::Type (pending_visual_change.pending | VisualChange::TimeOrigin);
-       pending_visual_change.time_origin = where;
+//     pending_visual_change.pending = VisualChange::Type (pending_visual_change.pending | VisualChange::TimeOrigin);
+//     pending_visual_change.time_origin = where;
 
        if (pending_visual_change.idle_handler_id < 0) {
+               pending_visual_change.pending = VisualChange::Type (pending_visual_change.pending | VisualChange::TimeOrigin);
+               pending_visual_change.time_origin = where;
                pending_visual_change.idle_handler_id = g_idle_add (_idle_visual_changer, this);
        }
 }
@@ -3567,8 +4601,9 @@ Editor::queue_visual_change (double fpu)
        pending_visual_change.frames_per_unit = fpu;
 
        if (pending_visual_change.idle_handler_id < 0) {
-               pending_visual_change.idle_handler_id = g_idle_add_full (G_PRIORITY_HIGH_IDLE, _idle_visual_changer, this, 0);
+               pending_visual_change.idle_handler_id = g_idle_add ( _idle_visual_changer, this);
        }
+       
 }
 
 int
@@ -3581,24 +4616,41 @@ int
 Editor::idle_visual_changer ()
 {
        VisualChange::Type p = pending_visual_change.pending;
-
        pending_visual_change.pending = (VisualChange::Type) 0;
-       pending_visual_change.idle_handler_id = -1;
-       
+
        if (p & VisualChange::ZoomLevel) {
                set_frames_per_unit (pending_visual_change.frames_per_unit);
-       }
 
+               compute_fixed_ruler_scale ();
+               compute_current_bbt_points(pending_visual_change.time_origin, pending_visual_change.time_origin + (nframes_t)(edit_packer.get_width() * pending_visual_change.frames_per_unit));
+               compute_bbt_ruler_scale (pending_visual_change.time_origin, pending_visual_change.time_origin + (nframes_t)(edit_packer.get_width() * pending_visual_change.frames_per_unit));
+               update_tempo_based_rulers ();
+       }
        if (p & VisualChange::TimeOrigin) {
-               if (pending_visual_change.time_origin != leftmost_frame) {
-                       horizontal_adjustment.set_value (pending_visual_change.time_origin/frames_per_unit);
-                       /* the signal handler will do the rest */
+
+               nframes64_t csf, cef;
+               nframes64_t current_time_origin = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
+
+               if (session) {
+                       csf = session->current_start_frame();
+                       cef = session->current_end_frame() + (current_page_frames() / 24);// Add a little extra so we can see the end marker
+               }
+
+               /* if we seek beyond the current end of the canvas, move the end */
+
+               if (current_time_origin != pending_visual_change.time_origin) {
+                       //if (horizontal_adjustment.get_upper() < pending_visual_change.time_origin) {
+                       last_canvas_frame = (cef > (pending_visual_change.time_origin + current_page_frames())) ? cef : pending_visual_change.time_origin + current_page_frames();
+                       horizontal_adjustment.set_upper ((cef - csf) / frames_per_unit);
+                       //}
+                       horizontal_adjustment.set_value (pending_visual_change.time_origin / frames_per_unit);
                } else {
                        update_fixed_rulers();
                        redisplay_tempo (true);
                }
        }
-
+       //cerr << "Editor::idle_visual_changer () called ha v:l:u:ps:fpu = " << horizontal_adjustment.get_value() << ":" << horizontal_adjustment.get_lower() << ":" << horizontal_adjustment.get_upper() << ":" << horizontal_adjustment.get_page_size() << ":" << frames_per_unit << endl;//DEBUG
+       pending_visual_change.idle_handler_id = -1;
        return 0; /* this is always a one-shot call */
 }
 
@@ -3609,18 +4661,491 @@ struct EditorOrderTimeAxisSorter {
 };
        
 void
-Editor::sort_track_selection ()
+Editor::sort_track_selection (TrackSelection* sel)
 {
        EditorOrderTimeAxisSorter cmp;
-       selection->tracks.sort (cmp);
+
+       if (sel) {
+               sel->sort (cmp);
+       } else {
+               selection->tracks.sort (cmp);
+       }
+}
+
+nframes64_t
+Editor::get_preferred_edit_position (bool ignore_playhead)
+{
+       bool ignored;
+       nframes64_t where = 0;
+       EditPoint ep = _edit_point;
+
+       if (entered_marker) {
+               return entered_marker->position();
+       }
+
+       if (ignore_playhead && ep == EditAtPlayhead) {
+               ep = EditAtSelectedMarker;
+       }
+
+       switch (ep) {
+       case EditAtPlayhead:
+               where = session->audible_frame();
+               break;
+               
+       case EditAtSelectedMarker:
+               if (!selection->markers.empty()) {
+                       bool is_start;
+                       Location* loc = find_location_from_marker (selection->markers.front(), is_start);
+                       if (loc) {
+                               if (is_start) {
+                                       where =  loc->start();
+                               } else {
+                                       where = loc->end();
+                               }
+                               break;
+                       }
+               } 
+               /* fallthru */
+               
+       default:
+       case EditAtMouse:
+               if (!mouse_frame (where, ignored)) {
+                       /* XXX not right but what can we do ? */
+                       return 0;
+               }
+               snap_to (where);
+               break;
+       }
+
+       return where;
+}
+
+void
+Editor::set_loop_range (nframes64_t start, nframes64_t end, string cmd)
+{
+       if (!session) return;
+
+       begin_reversible_command (cmd);
+       
+       Location* tll;
+
+       if ((tll = transport_loop_location()) == 0) {
+               Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoLoop);
+                XMLNode &before = session->locations()->get_state();
+               session->locations()->add (loc, true);
+               session->set_auto_loop_location (loc);
+                XMLNode &after = session->locations()->get_state();
+               session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
+       } else {
+                XMLNode &before = tll->get_state();
+               tll->set_hidden (false, this);
+               tll->set (start, end);
+                XMLNode &after = tll->get_state();
+                session->add_command (new MementoCommand<Location>(*tll, &before, &after));
+       }
+       
+       commit_reversible_command ();
+}
+
+void
+Editor::set_punch_range (nframes64_t start, nframes64_t end, string cmd)
+{
+       if (!session) return;
+
+       begin_reversible_command (cmd);
+       
+       Location* tpl;
+
+       if ((tpl = transport_punch_location()) == 0) {
+               Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoPunch);
+                XMLNode &before = session->locations()->get_state();
+               session->locations()->add (loc, true);
+               session->set_auto_loop_location (loc);
+                XMLNode &after = session->locations()->get_state();
+               session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
+       }
+       else {
+                XMLNode &before = tpl->get_state();
+               tpl->set_hidden (false, this);
+               tpl->set (start, end);
+                XMLNode &after = tpl->get_state();
+                session->add_command (new MementoCommand<Location>(*tpl, &before, &after));
+       }
+       
+       commit_reversible_command ();
+}
+
+void
+Editor::get_regions_at (RegionSelection& rs, nframes64_t where, const TrackSelection& ts) const
+{
+       const TrackSelection* tracks;
+
+       if (ts.empty()) {
+               tracks = &track_views;
+       } else {
+               tracks = &ts;
+       }
+
+       for (TrackSelection::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
+       
+               AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(*t);
+
+               if (atv) {
+                       boost::shared_ptr<Diskstream> ds;
+                       boost::shared_ptr<Playlist> pl;
+                       
+                       if ((ds = atv->get_diskstream()) && ((pl = ds->playlist()))) {
+
+                               Playlist::RegionList* regions = pl->regions_at ((nframes64_t) floor ( (double)where * ds->speed()));
+
+                               for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
+
+                                       RegionView* rv = atv->audio_view()->find_view (*i);
+
+                                       if (rv) {
+                                               rs.add (rv);
+                                       }
+                               }
+
+                               delete regions;
+                       }
+               }
+       }
 }
 
-nframes_t
-Editor::edit_cursor_position(bool sync)
+void
+Editor::get_regions_after (RegionSelection& rs, nframes64_t where, const TrackSelection& ts) const
 {
-       if (sync && edit_cursor->current_frame != edit_cursor_clock.current_time()) {
-               edit_cursor_clock.set(edit_cursor->current_frame, true);
+       const TrackSelection* tracks;
+
+       if (ts.empty()) {
+               tracks = &track_views;
+       } else {
+               tracks = &ts;
+       }
+
+       for (TrackSelection::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
+       
+               AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(*t);
+
+               if (atv) {
+                       boost::shared_ptr<Diskstream> ds;
+                       boost::shared_ptr<Playlist> pl;
+                       
+                       if ((ds = atv->get_diskstream()) && ((pl = ds->playlist()))) {
+
+                               Playlist::RegionList* regions = pl->regions_touched ((nframes64_t) floor ( (double)where * ds->speed()), max_frames);
+
+                               for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
+
+                                       RegionView* rv = atv->audio_view()->find_view (*i);
+
+                                       if (rv) {
+                                               rs.push_back (rv);
+                                       }
+                               }
+
+                               delete regions;
+                       }
+               }
        }
+}
+
+void
+Editor::get_regions_for_action (RegionSelection& rs, bool allow_entered)
+{
+       if (selection->regions.empty()) {
+
+               if (selection->tracks.empty()) {
+
+                       /* no regions or tracks selected
+                       */
+                       
+                       if (entered_regionview && mouse_mode == Editing::MouseObject) {
+
+                               /*  entered regionview is valid and we're in object mode - 
+                                   just use entered regionview
+                               */
+
+                               rs.add (entered_regionview);
+                       }
+
+                       return;
+
+               } else {
+
+                       /* no regions selected, so get all regions at the edit point across
+                          all selected tracks. 
+                       */
+
+                       nframes64_t where = get_preferred_edit_position();
+                       get_regions_at (rs, where, selection->tracks);
+
+                       /* if the entered regionview wasn't selected and neither was its track
+                          then add it.
+                       */
+
+                       if (entered_regionview != 0 &&
+                           !selection->selected (entered_regionview) && 
+                           !selection->selected (&entered_regionview->get_time_axis_view())) {
+                               rs.add (entered_regionview);
+                       }
+               }
 
-       return edit_cursor->current_frame;
+       } else {
+               
+               /* just use the selected regions */
+
+               rs = selection->regions;
+
+               /* if the entered regionview wasn't selected and we allow this sort of thing,
+                  then add it.
+               */
+
+               if (allow_entered && entered_regionview && !selection->selected (entered_regionview)) {
+                       rs.add (entered_regionview);
+               }
+
+       }
+}
+
+void
+Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions)
+{
+
+       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
+               
+               RouteTimeAxisView* tatv;
+               
+               if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
+                       
+                       boost::shared_ptr<Playlist> pl;
+                       vector<boost::shared_ptr<Region> > results;
+                       RegionView* marv;
+                       boost::shared_ptr<Diskstream> ds;
+                       
+                       if ((ds = tatv->get_diskstream()) == 0) {
+                               /* bus */
+                               continue;
+                       }
+                       
+                       if ((pl = (ds->playlist())) != 0) {
+                               pl->get_region_list_equivalent_regions (region, results);
+                       }
+                       
+                       for (vector<boost::shared_ptr<Region> >::iterator ir = results.begin(); ir != results.end(); ++ir) {
+                               if ((marv = tatv->view()->find_view (*ir)) != 0) {
+                                       regions.push_back (marv);
+                               }
+                       }
+                       
+               }
+       }
+}      
+
+void
+Editor::show_rhythm_ferret ()
+{
+       if (rhythm_ferret == 0) {
+               rhythm_ferret = new RhythmFerret(*this);
+       }
+
+       rhythm_ferret->set_session (session);
+       rhythm_ferret->show ();
+       rhythm_ferret->present ();
+}
+
+void
+Editor::first_idle ()
+{
+       MessageDialog* dialog = 0;
+
+       if (track_views.size() > 1) { 
+               dialog = new MessageDialog (*this, 
+                                           _("Please wait while Ardour loads visual data"),
+                                           true,
+                                           Gtk::MESSAGE_INFO,
+                                           Gtk::BUTTONS_NONE);
+               dialog->present ();
+               ARDOUR_UI::instance()->flush_pending ();
+       }
+
+       for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
+               (*t)->first_idle();
+       }
+       
+       if (dialog) {
+               delete dialog;
+       }
+
+       _have_idled = true;
+}
+
+void
+Editor::start_resize_line_ops ()
+{
+#if 0
+       old_resize_line_y = -1;
+       resize_line_y = -1;
+       need_resize_line = true;
+#endif 
+}
+
+void
+Editor::end_resize_line_ops ()
+{
+#if 0
+       need_resize_line = false;
+
+       if (old_resize_line_y >= 0) {
+               Gdk::Rectangle r (0, old_resize_line_y, (int) canvas_width, 3);
+               Glib::RefPtr<Gdk::Window> win = get_window();
+               cerr << "Final invalidation at " << old_resize_line_y << endl;
+               win->invalidate_rect (r, false);
+       }
+#endif
+}
+
+void
+Editor::queue_draw_resize_line (int at)
+{
+#if 0  
+       Glib::RefPtr<Gdk::Window> win = get_window();
+
+       resize_line_y = at;
+
+       if (win && canvas_width) {
+
+               int controls_width = controls_layout.get_width();
+               int xroot, discard;
+               
+               controls_layout.get_window()->get_origin (xroot, discard);
+
+               if (old_resize_line_y >= 0) {
+                       
+                       /* redraw where it used to be */
+                       
+                       
+                       Gdk::Rectangle r (0, old_resize_line_y - 1, controls_width + (int) canvas_width, 3);
+                       win->invalidate_rect (r, true);
+                       cerr << "invalidate " << xroot << "," << old_resize_line_y - 1 << ' ' 
+                            << controls_width + canvas_width << " x 3\n";
+               }
+
+               /* draw where it is */
+
+               Gdk::Rectangle r (0, at - 1, controls_width + (int) canvas_width, 3);
+               win->invalidate_rect (r, true);
+       }
+#endif
+}
+
+bool
+Editor::on_expose_event (GdkEventExpose* ev)
+{
+       /* cerr << "+++ editor expose "
+            << ev->area.x << ',' << ev->area.y
+            << ' '
+            << ev->area.width << " x " << ev->area.height
+            << " need reize ? " << need_resize_line
+            << endl;
+       */
+       bool ret = Window::on_expose_event (ev);
+
+#if 0
+       if (need_resize_line) {
+               
+               int xroot, yroot, discard;
+               int controls_width;
+
+               /* Our root coordinates for drawing the line will be the left edge 
+                  of the track controls, and the upper left edge of our own window.
+               */
+
+               get_window()->get_origin (discard, yroot);
+               controls_layout.get_window()->get_origin (xroot, discard);
+               controls_width = controls_layout.get_width();
+               
+               GdkRectangle lr;
+               GdkRectangle intersection;
+
+               lr.x = 0;
+               lr.y = resize_line_y;
+               lr.width = controls_width + (int) canvas_width;
+               lr.height = 3;
+
+               if (gdk_rectangle_intersect (&lr, &ev->area, &intersection)) {
+                       
+                       Glib::RefPtr<Gtk::Style> style (get_style());
+                       Glib::RefPtr<Gdk::GC> black_gc (style->get_black_gc ());
+                       Glib::RefPtr<Gdk::GC> gc = wrap (black_gc->gobj_copy(), false);
+
+                       /* draw on root window */
+
+                       GdkWindow* win = gdk_get_default_root_window();
+                       
+                       gc->set_subwindow (Gdk::INCLUDE_INFERIORS);
+                       gc->set_line_attributes (3, Gdk::LINE_SOLID, 
+                                                Gdk::CAP_NOT_LAST,
+                                                Gdk::JOIN_MITER);
+                       
+                       gdk_draw_line (win, gc->gobj(), 
+                                      0,
+                                      resize_line_y, 
+                                      (int) canvas_width + controls_width,
+                                      resize_line_y);
+#if 0
+                       cerr << "drew line @ " << xroot << ", " << yroot + resize_line_y 
+                            << " to " << xroot + (int) canvas_width + controls_width
+                            << ", " << yroot + resize_line_y
+                            << endl;
+#endif
+                       old_resize_line_y = resize_line_y;
+                       cerr << "NEXT EXPOSE SHOULD BE AT " << old_resize_line_y << endl;
+               } else {
+                       cerr << "no intersect with "
+                            << lr.x << ',' << lr.y
+                            << ' '
+                            << lr.width << " x " << lr.height
+                            << endl;
+               }
+       }
+
+       //cerr << "--- editor expose\n";
+#endif
+
+       return ret;
+}
+
+static gboolean
+_idle_resizer (gpointer arg)
+{
+       return ((Editor*)arg)->idle_resize ();
+}
+
+void
+Editor::add_to_idle_resize (TimeAxisView* view, uint32_t h)
+{
+       if (resize_idle_id < 0) {
+               resize_idle_id = g_idle_add (_idle_resizer, this);
+       }
+
+       resize_idle_target = h;
+
+       pending_resizes.push_back (view);
+
+       if (selection->selected (view) && !selection->tracks.empty()) {
+               pending_resizes.insert (pending_resizes.end(), selection->tracks.begin(), selection->tracks.end());
+       }
+}
+
+bool
+Editor::idle_resize ()
+{
+       for (vector<TimeAxisView*>::iterator i = pending_resizes.begin(); i != pending_resizes.end(); ++i) {
+               (*i)->idle_resize (resize_idle_target);
+       }
+       pending_resizes.clear();
+       resize_idle_id = -1;
+       return false;
 }