Fix horizontal positioning of PC flags.
[ardour.git] / gtk2_ardour / editor.cc
index b99198285593348acdc61e876eaaafe8114ceaf8..0932a046e08f492e78456a4bf5a634bdeb5a9268 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2000-2006 Paul Davis 
+    Copyright (C) 2000-2007 Paul Davis 
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
+/* Note: public Editor methods are documented in public_editor.h */
+
 #include <unistd.h>
 #include <cstdlib>
 #include <cmath>
 #include <string>
 #include <algorithm>
 
+#include <boost/none.hpp>
+
 #include <sigc++/bind.h>
 
 #include <pbd/convert.h>
 #include <pbd/error.h>
+#include <pbd/enumwriter.h>
 #include <pbd/memento_command.h>
 
+#include <glibmm/miscutils.h>
 #include <gtkmm/image.h>
 #include <gdkmm/color.h>
 #include <gdkmm/bitmap.h>
 
+#include <gtkmm2ext/grouped_buttons.h>
 #include <gtkmm2ext/gtk_ui.h>
 #include <gtkmm2ext/tearoff.h>
 #include <gtkmm2ext/utils.h>
+#include <gtkmm2ext/window_title.h>
+#include <gtkmm2ext/choice.h>
 
-#include <ardour/audio_track.h>
 #include <ardour/audio_diskstream.h>
-#include <ardour/plugin_manager.h>
-#include <ardour/location.h>
+#include <ardour/audio_track.h>
 #include <ardour/audioplaylist.h>
 #include <ardour/audioregion.h>
-#include <ardour/region.h>
+#include <ardour/location.h>
+#include <ardour/midi_region.h>
+#include <ardour/plugin_manager.h>
+#include <ardour/profile.h>
+#include <ardour/route_group.h>
+#include <ardour/session_directory.h>
 #include <ardour/session_route.h>
+#include <ardour/session_state_utils.h>
 #include <ardour/tempo.h>
 #include <ardour/utils.h>
 
@@ -53,7 +65,6 @@
 
 #include "ardour_ui.h"
 #include "editor.h"
-#include "grouped_buttons.h"
 #include "keyboard.h"
 #include "marker.h"
 #include "playlist_selector.h"
 #include "selection.h"
 #include "audio_streamview.h"
 #include "time_axis_view.h"
+#include "audio_time_axis.h"
 #include "utils.h"
 #include "crossfade_view.h"
 #include "editing.h"
 #include "public_editor.h"
 #include "crossfade_edit.h"
-#include "audio_time_axis.h"
 #include "canvas_impl.h"
 #include "actions.h"
+#include "sfdb_ui.h"
 #include "gui_thread.h"
-
-#ifdef FFT_ANALYSIS
+#include "simpleline.h"
+#include "rhythm_ferret.h"
+#include "actions.h"
+#include "tempo_lines.h"
 #include "analysis_window.h"
-#endif
+#include "bundle_manager.h"
+#include "global_port_matrix.h"
 
 #include "i18n.h"
 
-/* <CMT Additions> */
+#ifdef WITH_CMT
 #include "imageframe_socket_handler.h"
-/* </CMT Additions> */
+#endif
 
 using namespace std;
 using namespace sigc;
@@ -98,17 +113,7 @@ const double Editor::timebar_height = 15.0;
 
 #include "editor_xpms"
 
-static const int32_t slide_index = 0;
-static const int32_t splice_index = 1;
-
-static const gchar *edit_mode_strings[] = {
-       N_("Slide Edit"),
-       N_("Splice Edit"),
-       0
-};
-
-static const gchar *snap_type_strings[] = {
-       N_("None"),
+static const gchar *_snap_type_strings[] = {
        N_("CD Frames"),
        N_("SMPTE Frames"),
        N_("SMPTE Seconds"),
@@ -123,7 +128,6 @@ static const gchar *snap_type_strings[] = {
        N_("Beats"),
        N_("Bars"),
        N_("Marks"),
-       N_("Edit Cursor"),
        N_("Region starts"),
        N_("Region ends"),
        N_("Region syncs"),
@@ -131,20 +135,41 @@ static const gchar *snap_type_strings[] = {
        0
 };
 
-static const gchar *snap_mode_strings[] = {
-       N_("Normal Snap"),
-       N_("Magnetic Snap"),
+static const gchar *_snap_mode_strings[] = {
+       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_("Mouse"),
+       N_("Active Mark"),
        0
 };
 
-static const gchar *zoom_focus_strings[] = {
-       N_("Focus Left"),
-       N_("Focus Right"),
-       N_("Focus Center"),
-       N_("Focus Play"),
-       N_("Focus Edit"),
+#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 */
 
@@ -152,12 +177,18 @@ 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)
@@ -165,36 +196,30 @@ 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 (AudioEngine& eng) 
-       : engine (eng),
-
+Editor::Editor ()
+       : 
          /* time display buttons */
 
          minsec_label (_("Mins:Secs")),
          bbt_label (_("Bars:Beats")),
-         smpte_label (_("SMPTE")),
-         frame_label (_("Frames")),
+         smpte_label (_("Timecode")),
+         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.
@@ -205,21 +230,25 @@ Editor::Editor (AudioEngine& eng)
 
          /* tool bar related */
 
-         edit_cursor_clock (X_("EditCursorClock"), true),
-         zoom_range_clock (X_("ZoomRangeClock"), true, 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),
          
          automation_mode_button (_("mode")),
          global_automation_button (_("automation")),
 
-         /* <CMT Additions> */
+         midi_panic_button (_("Panic")),
+         midi_tools_tearoff (0),
+
+#ifdef WITH_CMT
          image_socket_listener(0),
-         /* </CMT Additions> */
+#endif
 
          /* nudge */
 
-         nudge_clock (X_("NudgeClock"), true, true)
+         nudge_clock (X_("nudge"), false, X_("NudgeClock"), true, true),
+         meters_running(false)
 
 {
        constructed = false;
@@ -229,207 +258,259 @@ Editor::Editor (AudioEngine& eng)
        PublicEditor::_instance = this;
 
        session = 0;
+       _have_idled = false;
 
-       selection = new Selection;
-       cut_buffer = new Selection;
-
-       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 = new Selection (this);
+       cut_buffer = new Selection (this);
 
        clicked_regionview = 0;
-       clicked_trackview = 0;
-       clicked_audio_trackview = 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;
-       last_audition_region = 0;
        current_mixer_strip = 0;
        current_bbt_points = 0;
-
-       snap_type = SnapToFrame;
-       set_snap_to (snap_type);
-       snap_mode = SnapNormal;
-       set_snap_mode (snap_mode);
+       tempo_lines = 0;
+       
+       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;
-#endif
 
        current_interthread_info = 0;
        _show_measures = true;
        _show_waveforms = true;
        _show_waveforms_recording = true;
        first_action_message = 0;
-       export_dialog = 0;
        show_gain_after_trim = false;
-       no_zoom_repos_update = false;
-       ignore_route_list_reorder = false;
+       route_redisplay_does_not_sync_order_keys = false;
+       route_redisplay_does_not_reset_order_keys = false;
        no_route_list_redisplay = false;
        verbose_cursor_on = true;
        route_removal = false;
-       track_spacing = 0;
        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;
        editor_ruler_menu = 0;
        no_ruler_shown_update = false;
-       edit_hscroll_dragging = false;
        edit_group_list_menu = 0;
        route_list_menu = 0;
        region_list_menu = 0;
        marker_menu = 0;
+       start_end_marker_menu = 0;
        range_marker_menu = 0;
        marker_menu_item = 0;
        tm_marker_menu = 0;
        transport_marker_menu = 0;
        new_transport_marker_menu = 0;
        editor_mixer_strip_width = Wide;
-       repos_zoom_queued = false;
+       show_editor_mixer_when_tracks_arrive = false;
+       region_edit_menu_split_multichannel_item = 0;
        region_edit_menu_split_item = 0;
        temp_location = 0;
-       region_edit_menu_split_multichannel_item = 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;
-
-       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];
+       _dragging_playhead = false;
+       _dragging_edit_point = false;
+       _dragging_hscrollbar = false;
+       select_new_marker = false;
+       zoomed_to_region = false;
+       rhythm_ferret = 0;
+       _bundle_manager = 0;
+        for (ARDOUR::DataType::iterator i = ARDOUR::DataType::begin(); i != ARDOUR::DataType::end(); ++i) {
+               _global_port_matrix[*i] = 0;
+       }
+       allow_vertical_scroll = false;
+       no_save_visual = false;
+       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;
+
+       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;
-       
+       set_midi_edit_mode (MidiEditPencil, true);
+       _edit_point = EditAtMouse;
        set_mouse_mode (MouseObject, true);
 
-       frames_per_unit = 2048; /* too early to use set_frames_per_unit */
+       frames_per_unit = 2048; /* too early to use reset_zoom () */
        reset_hscrollbar_stepping ();
        
        zoom_focus = ZoomFocusLeft;
        set_zoom_focus (ZoomFocusLeft);
        zoom_range_clock.ValueChanged.connect (mem_fun(*this, &Editor::zoom_adjustment_changed));
 
-       initialize_rulers ();
-       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);
-
-       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);
-       controls_layout.signal_scroll_event().connect (mem_fun(*this, &Editor::control_layout_scroll), false);
-       
-       controls_layout.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
-       controls_layout.signal_button_release_event().connect (mem_fun(*this, &Editor::edit_controls_button_release));
-       controls_layout.signal_size_request().connect (mem_fun (*this, &Editor::controls_layout_size_request));
-
-       edit_vscrollbar.set_adjustment (vertical_adjustment);
-       edit_hscrollbar.set_adjustment (horizontal_adjustment);
-
-       edit_hscrollbar.signal_button_press_event().connect (mem_fun(*this, &Editor::hscrollbar_button_press));
-       edit_hscrollbar.signal_button_release_event().connect (mem_fun(*this, &Editor::hscrollbar_button_release));
-       edit_hscrollbar.signal_size_allocate().connect (mem_fun(*this, &Editor::hscrollbar_allocate));
-
-       build_cursors ();
-       setup_toolbar ();
-
-       edit_cursor_clock.ValueChanged.connect (mem_fun(*this, &Editor::edit_cursor_clock_changed));
-       
-       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));
-
        bbt_label.set_name ("EditorTimeButton");
        bbt_label.set_size_request (-1, (int)timebar_height);
        bbt_label.set_alignment (1.0, 0.5);
        bbt_label.set_padding (5,0);
+       bbt_label.hide ();
+       bbt_label.set_no_show_all();
        minsec_label.set_name ("EditorTimeButton");
        minsec_label.set_size_request (-1, (int)timebar_height);
        minsec_label.set_alignment (1.0, 0.5);
        minsec_label.set_padding (5,0);
+       minsec_label.hide ();
+       minsec_label.set_no_show_all();
        smpte_label.set_name ("EditorTimeButton");
        smpte_label.set_size_request (-1, (int)timebar_height);
        smpte_label.set_alignment (1.0, 0.5);
        smpte_label.set_padding (5,0);
+       smpte_label.hide ();
+       smpte_label.set_no_show_all();
        frame_label.set_name ("EditorTimeButton");
        frame_label.set_size_request (-1, (int)timebar_height);
        frame_label.set_alignment (1.0, 0.5);
        frame_label.set_padding (5,0);
+       frame_label.hide ();
+       frame_label.set_no_show_all();
+
        tempo_label.set_name ("EditorTimeButton");
        tempo_label.set_size_request (-1, (int)timebar_height);
        tempo_label.set_alignment (1.0, 0.5);
        tempo_label.set_padding (5,0);
+       tempo_label.hide();
+       tempo_label.set_no_show_all();
        meter_label.set_name ("EditorTimeButton");
        meter_label.set_size_request (-1, (int)timebar_height);
        meter_label.set_alignment (1.0, 0.5);
        meter_label.set_padding (5,0);
+       meter_label.hide();
+       meter_label.set_no_show_all();
        mark_label.set_name ("EditorTimeButton");
        mark_label.set_size_request (-1, (int)timebar_height);
        mark_label.set_alignment (1.0, 0.5);
        mark_label.set_padding (5,0);
+       mark_label.hide();
+       mark_label.set_no_show_all();
+       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);
+       cd_mark_label.hide();
+       cd_mark_label.set_no_show_all();
        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);
        range_mark_label.set_padding (5,0);
+       range_mark_label.hide();
+       range_mark_label.set_no_show_all();
        transport_mark_label.set_name ("EditorTimeButton");
        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);
+       transport_mark_label.hide();
+       transport_mark_label.set_no_show_all();
+
+       initialize_rulers ();
+       initialize_canvas ();
+
+       selection->TimeChanged.connect (mem_fun(*this, &Editor::time_selection_changed));
+       selection->TracksChanged.connect (mem_fun(*this, &Editor::track_selection_changed));
+       editor_regions_selection_changed_connection = 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));
+
+       edit_controls_vbox.set_spacing (0);
+       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));
+
+       controls_layout.add (edit_controls_vbox);
+       controls_layout.set_name ("EditControlsBase");
+       controls_layout.add_events (Gdk::SCROLL_MASK);
+       controls_layout.signal_scroll_event().connect (mem_fun(*this, &Editor::control_layout_scroll), 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);
-       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);
+       controls_layout.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
+       controls_layout.signal_button_release_event().connect (mem_fun(*this, &Editor::edit_controls_button_release));
+       controls_layout_size_request_connection = controls_layout.signal_size_request().connect (mem_fun (*this, &Editor::controls_layout_size_request));
 
-       time_button_event_box.add (time_button_vbox);
+       edit_vscrollbar.set_adjustment (vertical_adjustment);
+       edit_hscrollbar.set_adjustment (horizontal_adjustment);
+
+       edit_hscrollbar.signal_button_press_event().connect (mem_fun(*this, &Editor::hscrollbar_button_press), false);
+       edit_hscrollbar.signal_button_release_event().connect (mem_fun(*this, &Editor::hscrollbar_button_release), false);
+       edit_hscrollbar.signal_size_allocate().connect (mem_fun(*this, &Editor::hscrollbar_allocate));
+
+       edit_hscrollbar.set_name ("EditorHScrollbar");
+
+       build_cursors ();
+       setup_toolbar ();
+       setup_midi_toolbar ();
+
+       edit_point_clock.ValueChanged.connect (mem_fun(*this, &Editor::edit_point_clock_changed));
        
-       time_button_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
+       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.set_size_request (-1, (int)(timebar_height * visible_timebars) + 2);
+       //time_canvas_vbox.set_size_request (-1, -1);
+
+       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_event_box.add (time_button_vbox);
        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));
 
        /* 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);
@@ -439,36 +520,57 @@ Editor::Editor (AudioEngine& eng)
        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,         0, 1, 1, 3,    FILL,        FILL|EXPAND, 0, 0);
+       edit_packer.attach (edit_vscrollbar,         0, 1, 0, 4,    FILL,        FILL|EXPAND, 0, 0);
 
-       edit_packer.attach (time_button_event_box,   1, 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 (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);
 
        route_display_model = ListStore::create(route_display_columns);
        route_list_display.set_model (route_display_model);
-       route_list_display.append_column (_("Visible"), route_display_columns.visible);
+       route_list_display.append_column (_("Show"), route_display_columns.visible);
        route_list_display.append_column (_("Name"), route_display_columns.text);
        route_list_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
        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));
 
@@ -481,7 +583,7 @@ Editor::Editor (AudioEngine& eng)
        edit_group_display.set_model (group_model);
        edit_group_display.append_column (_("Name"), group_columns.text);
        edit_group_display.append_column (_("Active"), group_columns.is_active);
-       edit_group_display.append_column (_("Visible"), group_columns.is_visible);
+       edit_group_display.append_column (_("Show"), group_columns.is_visible);
        edit_group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
        edit_group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
        edit_group_display.get_column (2)->set_data (X_("colnum"), GUINT_TO_POINTER(2));
@@ -506,12 +608,11 @@ Editor::Editor (AudioEngine& eng)
        active_cell->property_activatable() = true;
        active_cell->property_radio() = false;
 
-       edit_group_display.set_name ("EditGroupList");
-
        group_model->signal_row_changed().connect (mem_fun (*this, &Editor::edit_group_row_change));
 
        edit_group_display.set_name ("EditGroupList");
        edit_group_display.get_selection()->set_mode (SELECTION_SINGLE);
+       edit_group_display.set_headers_visible (true);
        edit_group_display.set_reorderable (false);
        edit_group_display.set_rules_hint (true);
        edit_group_display.set_size_request (75, -1);
@@ -522,7 +623,7 @@ Editor::Editor (AudioEngine& eng)
        edit_group_display.signal_button_press_event().connect (mem_fun(*this, &Editor::edit_group_list_button_press_event), false);
 
        VBox* edit_group_display_packer = manage (new VBox());
-       HButtonBox* edit_group_display_button_box = manage (new HButtonBox());
+       HBox* edit_group_display_button_box = manage (new HBox());
        edit_group_display_button_box->set_homogeneous (true);
 
        Button* edit_group_add_button = manage (new Button ());
@@ -549,6 +650,10 @@ Editor::Editor (AudioEngine& eng)
 
        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));
@@ -556,8 +661,24 @@ Editor::Editor (AudioEngine& eng)
 
        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.set_hover_expand (true);
+       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 (_("Sync"), region_list_columns.sync);
+       region_list_display.append_column (_("Fade In"), region_list_columns.fadein);
+       region_list_display.append_column (_("Fade Out"), region_list_columns.fadeout);
+       region_list_display.append_column (_("L"), region_list_columns.locked);
+       region_list_display.append_column (_("G"), region_list_columns.glued);
+       region_list_display.append_column (_("M"), region_list_columns.muted);
+       region_list_display.append_column (_("O"), region_list_columns.opaque);
+       region_list_display.append_column (_("Used"), region_list_columns.used);
+       region_list_display.append_column (_("Path"), region_list_columns.path);
+       region_list_display.set_headers_visible (true);
+       //region_list_display.set_grid_lines (TREE_VIEW_GRID_LINES_BOTH);
+       
+       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));
        
@@ -568,7 +689,7 @@ Editor::Editor (AudioEngine& eng)
        
        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;
@@ -581,15 +702,19 @@ Editor::Editor (AudioEngine& eng)
        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);
        region_list_display.signal_button_release_event().connect (mem_fun(*this, &Editor::region_list_display_button_release));
-       region_list_display.get_selection()->signal_changed().connect (mem_fun(*this, &Editor::region_list_selection_changed));
+       region_list_change_connection = 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_UI::instance()->secondary_clock.mode_changed.connect (mem_fun(*this, &Editor::update_all_region_rows));
+       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);
 
@@ -598,11 +723,12 @@ Editor::Editor (AudioEngine& eng)
        named_selection_display.append_column (_("Chunks"), named_selection_columns.text);
        named_selection_display.set_headers_visible (false);
        named_selection_display.set_size_request (100, -1);
-       named_selection_display.set_name ("RegionListDisplay");
+       named_selection_display.set_name ("NamedSelectionDisplay");
        
        named_selection_display.get_selection()->set_mode (SELECTION_SINGLE);
        named_selection_display.set_size_request (100, -1);
-       named_selection_display.signal_button_press_event().connect (mem_fun(*this, &Editor::named_selection_display_button_press), false);
+       named_selection_display.signal_button_release_event().connect (mem_fun(*this, &Editor::named_selection_display_button_release), false);
+       named_selection_display.signal_key_release_event().connect (mem_fun(*this, &Editor::named_selection_display_key_release), false);
        named_selection_display.get_selection()->signal_changed().connect (mem_fun (*this, &Editor::named_selection_display_selection_changed));
 
        /* SNAPSHOTS */
@@ -610,7 +736,7 @@ Editor::Editor (AudioEngine& eng)
        snapshot_display_model = ListStore::create (snapshot_display_columns);
        snapshot_display.set_model (snapshot_display_model);
        snapshot_display.append_column (X_("snapshot"), snapshot_display_columns.visible_name);
-       snapshot_display.set_name ("SnapshotDisplayList");
+       snapshot_display.set_name ("SnapshotDisplay");
        snapshot_display.set_size_request (75, -1);
        snapshot_display.set_headers_visible (false);
        snapshot_display.set_reorderable (false);
@@ -624,31 +750,38 @@ Editor::Editor (AudioEngine& eng)
 
        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;
        edit_pane.pack1 (edit_packer, true, true);
        edit_pane.pack2 (the_notebook, false, true);
        
-       edit_pane.signal_size_allocate().connect_notify (bind (mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
+       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);
@@ -661,12 +794,21 @@ Editor::Editor (AudioEngine& eng)
        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);
 
@@ -677,8 +819,8 @@ Editor::Editor (AudioEngine& eng)
 
        /* nudge stuff */
 
-       nudge_forward_button.add (*(manage (new Image (get_xpm("right_arrow.xpm")))));
-       nudge_backward_button.add (*(manage (new Image (get_xpm("left_arrow.xpm")))));
+       nudge_forward_button.add (*(manage (new Image (::get_icon("nudge_right")))));
+       nudge_backward_button.add (*(manage (new Image (::get_icon("nudge_left")))));
 
        ARDOUR_UI::instance()->tooltips().set_tip (nudge_forward_button, _("Nudge Region/Selection Forwards"));
        ARDOUR_UI::instance()->tooltips().set_tip (nudge_backward_button, _("Nudge Region/Selection Backwards"));
@@ -688,8 +830,32 @@ Editor::Editor (AudioEngine& eng)
 
        fade_context_menu.set_name ("ArdourContextMenu");
 
-       set_title (_("ardour: editor"));
-       set_wmclass (_("ardour_editor"), "Ardour");
+       /* icons, titles, WM stuff */
+
+       list<Glib::RefPtr<Gdk::Pixbuf> > window_icons;
+       Glib::RefPtr<Gdk::Pixbuf> icon;
+
+       if ((icon = ::get_icon ("ardour_icon_16px")) != 0) {
+               window_icons.push_back (icon);
+       }
+       if ((icon = ::get_icon ("ardour_icon_22px")) != 0) {
+               window_icons.push_back (icon);
+       }
+       if ((icon = ::get_icon ("ardour_icon_32px")) != 0) {
+               window_icons.push_back (icon);
+       }
+       if ((icon = ::get_icon ("ardour_icon_48px")) != 0) {
+               window_icons.push_back (icon);
+       }
+       if (!window_icons.empty()) {
+               set_icon_list (window_icons);
+               set_default_icon_list (window_icons);
+       }
+
+       WindowTitle title(Glib::get_application_name());
+       title += _("Editor");
+       set_title (title.get_string());
+       set_wmclass (X_("ardour_editor"), "Ardour");
 
        add (vpacker);
        add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
@@ -703,15 +869,19 @@ Editor::Editor (AudioEngine& eng)
        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 ();
 }
 
 Editor::~Editor()
 {
-       /* <CMT Additions> */
-       if(image_socket_listener)
-       {
+#ifdef WITH_CMT
+       if(image_socket_listener) {
                if(image_socket_listener->is_connected())
                {
                        image_socket_listener->close_connection() ;
@@ -720,7 +890,10 @@ Editor::~Editor()
                delete image_socket_listener ;
                image_socket_listener = 0 ;
        }
-       /* </CMT Additions> */
+#endif
+
+       delete track_canvas;
+       track_canvas = 0;
 }
 
 void
@@ -777,93 +950,25 @@ Editor::set_entered_track (TimeAxisView* tav)
 void
 Editor::show_window ()
 {
-       show_all ();
-       present ();
-
-       /* now reset all audio_time_axis heights, because widgets might need
-          to be re-hidden
-       */
-       
-       TimeAxisView *tv;
-       
-       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-               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);
-}
-
-void
-Editor::set_frames_per_unit (double fpu)
-{
-       jack_nframes_t frames;
-
-       if (fpu == frames_per_unit) {
-               return;
-       }
-
-       if (fpu < 1.0) {
-               fpu = 1.0;
-       }
-
-       // convert fpu to frame count
-
-       frames = (jack_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.
-       */
-
-       if (max_frames / fpu < 800.0) {
-               return;
-       }
+       if (! is_visible ()) {
+               show_all ();
 
-       frames_per_unit = fpu;
+                /* re-hide editor list if necessary */
+                editor_list_button_toggled ();
 
-       if (frames != zoom_range_clock.current_duration()) {
-               zoom_range_clock.set (frames);
-       }
+               /* now reset all audio_time_axis heights, because widgets might need
+                  to be re-hidden
+               */
 
-       /* only update these if we not about to call reposition_x_origin,
-          which will do the same updates.
-       */
+               TimeAxisView *tv;
        
-       if (!no_zoom_repos_update) {
-               horizontal_adjustment.set_value (leftmost_frame/frames_per_unit);
-               update_fixed_rulers ();
-               tempo_map_changed (Change (0));
-       }
-
-       if (mouse_mode == MouseRange && selection->time.start () != selection->time.end_frame ()) {
-               if (!selection->tracks.empty()) {
-                       for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
-                               (*i)->reshow_selection (selection->time);
-                       }
-               } else {
-                       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-                               (*i)->reshow_selection (selection->time);
-                       }
+               for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
+                       tv = (static_cast<TimeAxisView*>(*i));
+                       tv->reset_height ();
                }
        }
 
-       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);
-
-       instant_save ();
-
+       present ();
 }
 
 void
@@ -874,42 +979,37 @@ 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::reposition_x_origin (jack_nframes_t frame)
+Editor::edit_point_clock_changed()
 {
-       if (frame != leftmost_frame) {
-               leftmost_frame = frame;
-               
-               jack_nframes_t rightmost_frame = leftmost_frame + current_page_frames ();
-
-               if (rightmost_frame > last_canvas_frame) {
-                       last_canvas_frame = rightmost_frame;
-                       reset_scrolling_region ();
-               }
+       if (_dragging_edit_point) {
+               return;
+       }
 
-               horizontal_adjustment.set_value (frame/frames_per_unit);
+       if (selection->markers.empty()) {
+               return;
        }
-}
 
-void
-Editor::edit_cursor_clock_changed()
-{
-       if (edit_cursor->current_frame != edit_cursor_clock.current_time()) {
-               edit_cursor->set_position (edit_cursor_clock.current_time());
+       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 ()
 {
-       if (session == 0 || no_zoom_repos_update) {
+       if (session == 0) {
                return;
        }
 
@@ -917,10 +1017,10 @@ Editor::zoom_adjustment_changed ()
 
        if (fpu < 1.0) {
                fpu = 1.0;
-               zoom_range_clock.set ((jack_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 ((jack_nframes_t) floor (fpu * canvas_width));
+               zoom_range_clock.set ((nframes64_t) floor (fpu * canvas_width));
        }
        
        temporal_zoom (fpu);
@@ -936,83 +1036,85 @@ Editor::control_scroll (float fraction)
        }
 
        double step = fraction * current_page_frames();
-       jack_nframes_t target;
 
-       if ((fraction < 0.0f) && (session->transport_frame() < (jack_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() + (jack_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 */
-               reposition_x_origin (target - (current_page_frames()/2));
+               reset_x_origin (*_control_scroll_target - (current_page_frames()/2));
        } else {
-               reposition_x_origin (0);
+               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 (jack_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::canvas_horizontally_scrolled ()
-{
-       leftmost_frame = (jack_nframes_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
-
-       update_fixed_rulers ();
-       
-       if (!edit_hscroll_dragging) {
-               tempo_map_changed (Change (0));
-       } else {
-               update_tempo_based_rulers();
-       }
-}
-
 void
-Editor::reposition_and_zoom (jack_nframes_t frame, double nfpu)
+Editor::access_action (std::string action_group, std::string action_item)
 {
-       if (!repos_zoom_queued) {
-               Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::deferred_reposition_and_zoom), frame, nfpu));
-               repos_zoom_queued = true;
+       if (!session) {
+               return;
        }
-}
 
-gint
-Editor::deferred_reposition_and_zoom (jack_nframes_t frame, double nfpu)
-{
-       /* if we need to force an update to the hscroller stuff,
-          don't set no_zoom_repos_update.
-       */
+       ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::access_action), action_group, action_item));
 
-       no_zoom_repos_update = (frame != leftmost_frame);
-       
-       set_frames_per_unit (nfpu);
-       if (no_zoom_repos_update) {
-               reposition_x_origin  (frame);
+       RefPtr<Action> act;
+       act = ActionManager::get_action( action_group.c_str(), action_item.c_str() );
+
+       if (act) {
+               act->activate();
        }
-       no_zoom_repos_update = false;
-       repos_zoom_queued = false;
-       
-       return FALSE;
+               
+
 }
 
 void
@@ -1023,50 +1125,21 @@ Editor::on_realize ()
 }
 
 void
-Editor::queue_session_control_changed (Session::ControlType t)
-{
-       Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &Editor::session_control_changed), t));
-}
-
-void
-Editor::session_control_changed (Session::ControlType t)
-{
-       // right now we're only tracking some state here 
-
-       switch (t) {
-       case Session::AutoLoop:
-               update_loop_range_view (true);
-               break;
-       case Session::PunchIn:
-       case Session::PunchOut:
-               update_punch_range_view (true);
-               break;
-
-       case Session::LayeringModel:
-               update_layering_model ();
-               break;
-
-       default:
-               break;
-       }
-}
-
-void
-Editor::start_scrolling ()
+Editor::start_scrolling ()
 {
        scroll_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect 
                (mem_fun(*this, &Editor::update_current_screen));
+
 }
 
 void
 Editor::stop_scrolling ()
 {
        scroll_connection.disconnect ();
-       slower_update_connection.disconnect ();
 }
 
 void
-Editor::map_position_change (jack_nframes_t frame)
+Editor::map_position_change (nframes64_t frame)
 {
        ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::map_position_change), frame));
 
@@ -1079,7 +1152,7 @@ Editor::map_position_change (jack_nframes_t frame)
 }      
 
 void
-Editor::center_screen (jack_nframes_t frame)
+Editor::center_screen (nframes64_t frame)
 {
        double page = canvas_width * frames_per_unit;
 
@@ -1092,32 +1165,36 @@ Editor::center_screen (jack_nframes_t frame)
 }
 
 void
-Editor::center_screen_internal (jack_nframes_t frame, float page)
+Editor::center_screen_internal (nframes64_t frame, float page)
 {
        page /= 2;
                
        if (frame > page) {
-               frame -= (jack_nframes_t) page;
+               frame -= (nframes64_t) page;
        } else {
                frame = 0;
        }
 
-    reposition_x_origin (frame);
+       reset_x_origin (frame);
 }
 
 void
 Editor::handle_new_duration ()
 {
+       if (!session) {
+               return;
+       }
+
        ENSURE_GUI_THREAD (mem_fun (*this, &Editor::handle_new_duration));
+       nframes64_t new_end = session->current_end_frame() + (nframes64_t) floorf (current_page_frames() * 0.10f);
 
-       jack_nframes_t new_end = session->get_maximum_extent() + (jack_nframes_t) floorf (current_page_frames() * 0.10f);
-                                 
-       if (new_end > last_canvas_frame) {
-               last_canvas_frame = new_end;
-               reset_scrolling_region ();
-       }
+       horizontal_adjustment.set_upper (new_end / frames_per_unit);
+       horizontal_adjustment.set_page_size (current_page_frames()/frames_per_unit);
 
-       horizontal_adjustment.set_value (leftmost_frame/frames_per_unit);
+       if (horizontal_adjustment.get_value() + canvas_width > horizontal_adjustment.get_upper()) {
+               horizontal_adjustment.set_value (horizontal_adjustment.get_upper() - canvas_width);
+       }
+       //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() << ":" << endl;//DEBUG
 }
 
 void
@@ -1136,24 +1213,21 @@ Editor::update_title ()
        if (session) {
                bool dirty = session->dirty();
 
-               string wintitle = _("ardour: editor: ");
-
-               if (dirty) {
-                       wintitle += '[';
-               }
-
-               wintitle += session->name();
+               string session_name;
 
                if (session->snap_name() != session->name()) {
-                       wintitle += ':';
-                       wintitle += session->snap_name();
+                       session_name = session->snap_name();
+               } else {
+                       session_name = session->name();
                }
 
                if (dirty) {
-                       wintitle += ']';
+                       session_name = "*" + session_name;
                }
 
-               set_title (wintitle);
+               WindowTitle title(session_name);
+               title += Glib::get_application_name();
+               set_title (title.get_string());
        }
 }
 
@@ -1162,13 +1236,25 @@ 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);
+
+       /* catch up with the playhead */
+
+       session->request_locate (playhead_cursor->current_frame);
+
        if (first_action_message) {
                first_action_message->hide();
        }
 
        update_title ();
 
-       session->going_away.connect (mem_fun(*this, &Editor::session_going_away));
+       session->GoingAway.connect (mem_fun(*this, &Editor::session_going_away));
+       session->history().Changed.connect (mem_fun (*this, &Editor::history_changed));
 
        /* These signals can all be emitted by a non-GUI thread. Therefore the
           handlers for them must not attempt to directly interact with the GUI,
@@ -1178,7 +1264,7 @@ 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)));
@@ -1191,32 +1277,38 @@ Editor::connect_to_session (Session *t)
        session_connections.push_back (session->RegionHiddenChange.connect (mem_fun(*this, &Editor::region_hidden)));
 
        session_connections.push_back (session->SMPTEOffsetChanged.connect (mem_fun(*this, &Editor::update_just_smpte)));
-       session_connections.push_back (session->SMPTETypeChanged.connect (mem_fun(*this, &Editor::update_just_smpte)));
 
        session_connections.push_back (session->tempo_map().StateChanged.connect (mem_fun(*this, &Editor::tempo_map_changed)));
 
        edit_groups_changed ();
 
-       edit_cursor_clock.set_session (session);
+       edit_point_clock.set_mode(AudioClock::BBT);
+       edit_point_clock.set_session (session);
        zoom_range_clock.set_session (session);
        _playlist_selector->set_session (session);
        nudge_clock.set_session (session);
+       if (Profile->get_sae()) {
+               BBT_Time bbt;
+               bbt.bars = 0;
+               bbt.beats = 0;
+               bbt.ticks = 120;
+               nframes_t pos = session->tempo_map().bbt_duration_at (0, bbt, 1);
+               nudge_clock.set_mode(AudioClock::BBT);
+               nudge_clock.set (pos, true, 0, AudioClock::BBT);
+               
+       } else {
+               nudge_clock.set (session->frame_rate() * 5, true, 0, AudioClock::SMPTE); // default of 5 seconds
+       }
 
-#ifdef FFT_ANALYSIS
-       if (analysis_window != 0)
-               analysis_window->set_session (session);
-#endif
-
-       switch (session->get_edit_mode()) {
-       case Splice:
-               edit_mode_selector.set_active_text (edit_mode_strings[splice_index]);
-               break;
+       playhead_cursor->canvas_item.show ();
 
-       case Slide:
-               edit_mode_selector.set_active_text (edit_mode_strings[slide_index]);
-               break;
+       if (rhythm_ferret) {
+               rhythm_ferret->set_session (session);
        }
 
+       if (analysis_window != 0)
+               analysis_window->set_session (session);
+
        Location* loc = session->locations()->auto_loop_location();
        if (loc == 0) {
                loc = new Location (0, session->current_end_frame(), _("Loop"),(Location::Flags) (Location::IsAutoLoop | Location::IsHidden));
@@ -1225,8 +1317,7 @@ Editor::connect_to_session (Session *t)
                }
                session->locations()->add (loc, false);
                session->set_auto_loop_location (loc);
-       }
-       else {
+       } else {
                // force name
                loc->set_name (_("Loop"));
        }
@@ -1239,16 +1330,13 @@ Editor::connect_to_session (Session *t)
                }
                session->locations()->add (loc, false);
                session->set_auto_punch_location (loc);
-       }
-       else {
+       } else {
                // force name
                loc->set_name (_("Punch"));
        }
 
-       update_loop_range_view (true);
-       update_punch_range_view (true);
+       Config->map_parameters (mem_fun (*this, &Editor::parameter_changed));
        
-       session->ControlChanged.connect (mem_fun(*this, &Editor::queue_session_control_changed));
        session->StateSaved.connect (mem_fun(*this, &Editor::session_state_saved));
        
        refresh_location_display ();
@@ -1258,69 +1346,33 @@ 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));
 
-       bool yn;
-       RefPtr<Action> act;
-
-       act = ActionManager::get_action (X_("Editor"), X_("toggle-xfades-active"));
-       if (act) {
-               RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
-               /* do it twice to force the change */
-               yn = session->get_crossfades_active();
-               tact->set_active (!yn);
-               tact->set_active (yn);
-       }
-
-       act = ActionManager::get_action (X_("Editor"), X_("toggle-auto-xfades"));
-       if (act) {
-               RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
-               /* do it twice to force the change */
-               yn = Config->get_auto_xfade ();
-               tact->set_active (!yn);
-               tact->set_active (yn);
+       if (sfbrowser) {
+               sfbrowser->set_session (session);
        }
 
-       /* xfade visibility state set from editor::set_state() */
-       
-       update_crossfade_model ();
-       update_layering_model ();
-
        handle_new_duration ();
 
        redisplay_regions ();
        redisplay_named_selections ();
        redisplay_snapshots ();
 
+       restore_ruler_visibility ();
+       //tempo_map_changed (Change (0));
+       session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
+
        initial_route_list_display ();
 
        for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
                (static_cast<TimeAxisView*>(*i))->set_samples_per_unit (frames_per_unit);
        }
 
-       /* ::reposition_x_origin() doesn't work right here, since the old
-          position may be zero already, and it does nothing in such
-          circumstances.
-       */
-
-       leftmost_frame = 0;
-       
-       horizontal_adjustment.set_value (0);
-
-       restore_ruler_visibility ();
-       tempo_map_changed (Change (0));
-
-       edit_cursor->set_position (0);
-       playhead_cursor->set_position (0);
-
        start_scrolling ();
 
-       XMLNode* node = ARDOUR_UI::instance()->editor_settings();
-       set_state (*node);
-
        /* don't show master bus in a new session */
 
        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;
@@ -1330,7 +1382,7 @@ 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);
                                }
                        }
@@ -1339,6 +1391,23 @@ 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 */
+       session->register_with_memento_command_factory(_id, this);
+
+       start_updating ();
 }
 
 void
@@ -1373,16 +1442,44 @@ 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 */
 void
 Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType item_type)
 {
@@ -1401,38 +1498,50 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
        switch (item_type) {
        case FadeInItem:
        case FadeInHandleItem:
-               if (arv->audio_region().fade_in_active()) {
-                       items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_in_active), false)));
+               if (arv->audio_region()->fade_in_active()) {
+                       items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*this, &Editor::set_fade_in_active), false)));
                } else {
-                       items.push_back (MenuElem (_("Activate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_in_active), true)));
+                       items.push_back (MenuElem (_("Activate"), bind (mem_fun (*this, &Editor::set_fade_in_active), true)));
                }
                
                items.push_back (SeparatorElem());
-               
-               items.push_back (MenuElem (_("Linear"), bind (mem_fun (arv->audio_region(), &AudioRegion::set_fade_in_shape), AudioRegion::Linear)));
-               items.push_back (MenuElem (_("Slowest"), bind (mem_fun (arv->audio_region(), &AudioRegion::set_fade_in_shape), AudioRegion::LogB)));
-               items.push_back (MenuElem (_("Slow"), bind (mem_fun (arv->audio_region(), &AudioRegion::set_fade_in_shape), AudioRegion::Fast)));
-               items.push_back (MenuElem (_("Fast"), bind (mem_fun (arv->audio_region(), &AudioRegion::set_fade_in_shape), AudioRegion::LogA)));
-               items.push_back (MenuElem (_("Fastest"), bind (mem_fun (arv->audio_region(), &AudioRegion::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:
        case FadeOutHandleItem:
-               if (arv->audio_region().fade_out_active()) {
-                       items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_out_active), false)));
+               if (arv->audio_region()->fade_out_active()) {
+                       items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*this, &Editor::set_fade_out_active), false)));
                } else {
-                       items.push_back (MenuElem (_("Activate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_out_active), true)));
+                       items.push_back (MenuElem (_("Activate"), bind (mem_fun (*this, &Editor::set_fade_out_active), true)));
                }
                
                items.push_back (SeparatorElem());
                
-               items.push_back (MenuElem (_("Linear"), bind (mem_fun (arv->audio_region(), &AudioRegion::set_fade_out_shape), AudioRegion::Linear)));
-               items.push_back (MenuElem (_("Slowest"), bind (mem_fun (arv->audio_region(), &AudioRegion::set_fade_out_shape), AudioRegion::Fast)));
-               items.push_back (MenuElem (_("Slow"), bind (mem_fun (arv->audio_region(), &AudioRegion::set_fade_out_shape), AudioRegion::LogB)));
-               items.push_back (MenuElem (_("Fast"), bind (mem_fun (arv->audio_region(), &AudioRegion::set_fade_out_shape), AudioRegion::LogA)));
-               items.push_back (MenuElem (_("Fastest"), bind (mem_fun (arv->audio_region(), &AudioRegion::set_fade_out_shape), AudioRegion::Slow)));
+               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;
+
        default:
                fatal << _("programming error: ")
                      << X_("non-fade canvas item passed to popup_fade_context_menu()")
@@ -1444,10 +1553,10 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
 }
 
 void
-Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection, jack_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)(jack_nframes_t);
+       Menu* (Editor::*build_menu_function)(nframes64_t);
        Menu *menu;
 
        switch (item_type) {
@@ -1474,7 +1583,7 @@ Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type,
                break;
 
        case StreamItem:
-               if (clicked_audio_trackview->get_diskstream()) {
+               if (clicked_routeview->get_diskstream()) {
                        build_menu_function = &Editor::build_track_context_menu;
                } else {
                        build_menu_function = &Editor::build_track_bus_context_menu;
@@ -1497,10 +1606,10 @@ Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type,
        case RegionViewNameHighlight:
                if (!with_selection) {
                        if (region_edit_menu_split_item) {
-                               if (clicked_regionview && clicked_regionview->region().covers (edit_cursor->current_frame)) {
-                                       ActionManager::set_sensitive (ActionManager::edit_cursor_in_region_sensitive_actions, true);
+                               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_cursor_in_region_sensitive_actions, false);
+                                       ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, false);
                                }
                        }
                        /*
@@ -1530,7 +1639,7 @@ Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type,
                return;
        }
 
-       if (clicked_audio_trackview && clicked_audio_trackview->audio_track()) {
+       if (item_type != SelectionItem && clicked_routeview && clicked_routeview->audio_track()) {
 
                /* Bounce to disk */
                
@@ -1539,7 +1648,7 @@ Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type,
                
                edit_items.push_back (SeparatorElem());
 
-               switch (clicked_audio_trackview->audio_track()->freeze_state()) {
+               switch (clicked_routeview->audio_track()->freeze_state()) {
                case AudioTrack::NoFreeze:
                        edit_items.push_back (MenuElem (_("Freeze"), mem_fun(*this, &Editor::freeze_route)));
                        break;
@@ -1555,11 +1664,15 @@ Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type,
 
        }
 
+       if (item_type == StreamItem && clicked_routeview) {
+               clicked_routeview->build_underlay_menu(menu);
+       }
+
        menu->popup (button, time);
 }
 
 Menu*
-Editor::build_track_context_menu (jack_nframes_t ignored)
+Editor::build_track_context_menu (nframes64_t ignored)
 {
        using namespace Menu_Helpers;
 
@@ -1571,7 +1684,7 @@ Editor::build_track_context_menu (jack_nframes_t ignored)
 }
 
 Menu*
-Editor::build_track_bus_context_menu (jack_nframes_t ignored)
+Editor::build_track_bus_context_menu (nframes64_t ignored)
 {
        using namespace Menu_Helpers;
 
@@ -1583,23 +1696,33 @@ Editor::build_track_bus_context_menu (jack_nframes_t ignored)
 }
 
 Menu*
-Editor::build_track_region_context_menu (jack_nframes_t frame)
+Editor::build_track_region_context_menu (nframes64_t frame)
 {
        using namespace Menu_Helpers;
        MenuList& edit_items  = track_region_context_menu.items();
        edit_items.clear();
 
-       AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_trackview);
+       RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (clicked_axisview);
 
-       if (atv) {
-               Diskstream* ds;
-               Playlist* pl;
+       if (rtv) {
+               boost::shared_ptr<Diskstream> ds;
+               boost::shared_ptr<Playlist> pl;
                
-               if ((ds = atv->get_diskstream()) && ((pl = ds->playlist()))) {
-                       Playlist::RegionList* regions = pl->regions_at ((jack_nframes_t) floor ( (double)frame * ds->speed()));
-                       for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
-                               add_region_context_items (atv->audio_view(), (*i), edit_items);
+               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;
                }
        }
@@ -1610,20 +1733,20 @@ Editor::build_track_region_context_menu (jack_nframes_t frame)
 }
 
 Menu*
-Editor::build_track_crossfade_context_menu (jack_nframes_t frame)
+Editor::build_track_crossfade_context_menu (nframes64_t frame)
 {
        using namespace Menu_Helpers;
        MenuList& edit_items  = track_crossfade_context_menu.items();
        edit_items.clear ();
 
-       AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_trackview);
+       AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_axisview);
 
        if (atv) {
-               Diskstream* ds;
-               Playlist* pl;
-               AudioPlaylist* apl;
+               boost::shared_ptr<Diskstream> ds;
+               boost::shared_ptr<Playlist> pl;
+               boost::shared_ptr<AudioPlaylist> apl;
 
-               if ((ds = atv->get_diskstream()) && ((pl = ds->playlist()) != 0) && ((apl = dynamic_cast<AudioPlaylist*> (pl)) != 0)) {
+               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;
@@ -1636,10 +1759,17 @@ Editor::build_track_crossfade_context_menu (jack_nframes_t frame)
                                add_crossfade_context_items (atv->audio_view(), (*i), edit_items, many);
                        }
 
-                       for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
-                               add_region_context_items (atv->audio_view(), (*i), 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;
                }
        }
@@ -1649,7 +1779,6 @@ Editor::build_track_crossfade_context_menu (jack_nframes_t frame)
        return &track_crossfade_context_menu;
 }
 
-#ifdef FFT_ANALYSIS
 void
 Editor::analyze_region_selection()
 {
@@ -1685,25 +1814,26 @@ Editor::analyze_range_selection()
        
        analysis_window->present();
 }
-#endif /* FFT_ANALYSIS */
-
-
 
 Menu*
-Editor::build_track_selection_context_menu (jack_nframes_t ignored)
+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);
-       add_dstream_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.
+ */
 void
-Editor::add_crossfade_context_items (AudioStreamView* view, Crossfade* xfade, Menu_Helpers::MenuList& edit_items, bool many)
+Editor::add_crossfade_context_items (AudioStreamView* view, boost::shared_ptr<Crossfade> xfade, Menu_Helpers::MenuList& edit_items, bool many)
 {
        using namespace Menu_Helpers;
        Menu     *xfade_menu = manage (new Menu);
@@ -1717,8 +1847,8 @@ Editor::add_crossfade_context_items (AudioStreamView* view, Crossfade* xfade, Me
                str = _("Unmute");
        }
 
-       items.push_back (MenuElem (str, bind (mem_fun(*this, &Editor::toggle_xfade_active), xfade)));
-       items.push_back (MenuElem (_("Edit"), bind (mem_fun(*this, &Editor::edit_xfade), xfade)));
+       items.push_back (MenuElem (str, bind (mem_fun(*this, &Editor::toggle_xfade_active), boost::weak_ptr<Crossfade> (xfade))));
+       items.push_back (MenuElem (_("Edit"), bind (mem_fun(*this, &Editor::edit_xfade), boost::weak_ptr<Crossfade> (xfade))));
 
        if (xfade->can_follow_overlap()) {
 
@@ -1732,9 +1862,9 @@ Editor::add_crossfade_context_items (AudioStreamView* view, Crossfade* xfade, Me
        }
 
        if (many) {
-               str = xfade->out().name();
+               str = xfade->out()->name();
                str += "->";
-               str += xfade->in().name();
+               str += xfade->in()->name();
        } else {
                str = _("Crossfade");
        }
@@ -1759,86 +1889,174 @@ Editor::xfade_edit_right_region ()
        }
 }
 
+/** Add an element to a menu, settings its sensitivity.
+ * @param m Menu to add to.
+ * @param e Element to add.
+ * @param s true to make sensitive, false to make insensitive
+ */
+void
+Editor::add_item_with_sensitivity (Menu_Helpers::MenuList& m, Menu_Helpers::MenuElem e, bool s) const
+{
+       m.push_back (e);
+       if (!s) {
+               m.back().set_sensitive (false);
+       }
+}
+
 void
-Editor::add_region_context_items (AudioStreamView* sv, Region* region, 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;
+       Gtk::MenuItem* foo_item;
        Menu     *region_menu = manage (new Menu);
        MenuList& items       = region_menu->items();
        region_menu->set_name ("ArdourContextMenu");
-       
-       AudioRegion* ar = 0;
+
+       boost::shared_ptr<AudioRegion> ar;
+       boost::shared_ptr<MidiRegion>  mr;
 
        if (region) {
-               ar = dynamic_cast<AudioRegion*> (region);
-       }
+               ar = boost::dynamic_pointer_cast<AudioRegion> (region);
+               mr = boost::dynamic_pointer_cast<MidiRegion> (region);
 
-       /* when this particular menu pops up, make the relevant region 
-          become selected.
-       */
+               /* when this particular menu pops up, make the relevant region 
+                  become selected.
+               */
 
-       region_menu->signal_map_event().connect (bind (mem_fun(*this, &Editor::set_selected_regionview_from_map_event), sv, region));
+               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 (_("Popup region editor"), 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)));
        items.push_back (SeparatorElem());
-       items.push_back (MenuElem (_("Define sync point"), mem_fun(*this, &Editor::set_region_sync_from_edit_cursor)));
+       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::audition_selected_region)));
+       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)));
-#endif
+       if (ar) {
+               items.push_back (MenuElem (_("Spectral Analysis"), mem_fun(*this, &Editor::analyze_region_selection)));
+       }
 
        items.push_back (SeparatorElem());
 
-       /* XXX hopefully this nonsense will go away with SigC++ 2.X, where the compiler
-          might be able to figure out which overloaded member function to use in
-          a bind() call ...
-       */
-
-       void (Editor::*type_A_pmf)(void (Region::*pmf)(bool), bool) = &Editor::region_selection_op;
+       sigc::connection fooc;
+       boost::shared_ptr<Region> region_to_check;
 
-       items.push_back (MenuElem (_("Lock"), bind (mem_fun(*this, type_A_pmf), &Region::set_locked, true)));
-       items.push_back (MenuElem (_("Unlock"), bind (mem_fun(*this, type_A_pmf), &Region::set_locked, false)));
-       items.push_back (SeparatorElem());
-
-       if (region->muted()) {
-               items.push_back (MenuElem (_("Unmute"), bind (mem_fun(*this, type_A_pmf), &Region::set_muted, false)));
+       if (region) {
+               region_to_check = region;
        } else {
-               items.push_back (MenuElem (_("Mute"), bind (mem_fun(*this, type_A_pmf), &Region::set_muted, true)));
+               region_to_check = selection->regions.front()->region();
        }
-       items.push_back (SeparatorElem());
 
-       items.push_back (MenuElem (_("Original position"), mem_fun(*this, &Editor::naturalize)));
+       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 (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;
+       }
+       
+       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);
+                       }
 
-               items.push_back (MenuElem (_("Toggle envelope visibility"), mem_fun(*this, &Editor::toggle_gain_envelope_visibility)));
-               items.push_back (MenuElem (_("Toggle envelope active"), mem_fun(*this, &Editor::toggle_gain_envelope_active)));
-               items.push_back (SeparatorElem());
+                       items.push_back (SeparatorElem());
+               }
 
                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)));
                }
+
+       } 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_region)));
        items.push_back (SeparatorElem());
 
-
        /* range related stuff */
 
-       items.push_back (MenuElem (_("Add Range Markers"), mem_fun (*this, &Editor::add_location_from_audio_region)));
-       items.push_back (MenuElem (_("Set Range"), mem_fun (*this, &Editor::set_selection_from_audio_region)));
+       items.push_back (MenuElem (_("Add Single Range"), mem_fun (*this, &Editor::add_location_from_audio_region)));
+       items.push_back (MenuElem (_("Add Range Markers"), mem_fun (*this, &Editor::add_locations_from_audio_region)));
+       if (selection->regions.size() < 2) {
+               items.back().set_sensitive (false);
+       }
+
+       items.push_back (MenuElem (_("Set Range Selection"), mem_fun (*this, &Editor::set_selection_from_region)));
        items.push_back (SeparatorElem());
                         
        /* Nudge region */
@@ -1847,8 +2065,8 @@ Editor::add_region_context_items (AudioStreamView* sv, Region* region, Menu_Help
        MenuList& nudge_items = nudge_menu->items();
        nudge_menu->set_name ("ArdourContextMenu");
        
-       nudge_items.push_back (MenuElem (_("Nudge fwd"), (bind (mem_fun(*this, &Editor::nudge_forward), false))));
-       nudge_items.push_back (MenuElem (_("Nudge bwd"), (bind (mem_fun(*this, &Editor::nudge_backward), false))));
+       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))));
 
@@ -1859,24 +2077,37 @@ Editor::add_region_context_items (AudioStreamView* sv, Region* region, Menu_Help
        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)));
+       foo_item = &trim_items.back();
+       if (_edit_point == EditAtMouse) {
+               foo_item->set_sensitive (false);
+       }
+       trim_items.push_back (MenuElem (_("Edit point to end"), mem_fun(*this, &Editor::trim_region_to_edit_point)));
+       foo_item = &trim_items.back();
+       if (_edit_point == EditAtMouse) {
+               foo_item->set_sensitive (false);
+       }
+       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();
+       
+       if (_edit_point == EditAtMouse) {
+               region_edit_menu_split_item->set_sensitive (false);
+       }
 
        items.push_back (MenuElem (_("Make mono regions"), (mem_fun(*this, &Editor::split_multichannel_region))));
        region_edit_menu_split_multichannel_item = &items.back();
 
-       items.push_back (MenuElem (_("Duplicate"), (bind (mem_fun(*this, &Editor::duplicate_dialog), true))));
+       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_clicked_region)));
-       items.push_back (SeparatorElem());
-       items.push_back (MenuElem (_("Destroy"), mem_fun(*this, &Editor::destroy_clicked_region)));
+       items.push_back (MenuElem (_("Remove"), mem_fun(*this, &Editor::remove_selected_regions)));
 
        /* OK, stick the region submenu at the top of the list, and then add
           the standard items.
@@ -1887,7 +2118,7 @@ Editor::add_region_context_items (AudioStreamView* sv, Region* region, Menu_Help
        */
 
        string::size_type pos = 0;
-       string menu_item_name = region->name();
+       string menu_item_name = (region) ? region->name() : _("Selected regions");
 
        while ((pos = menu_item_name.find ("_", pos)) != string::npos) {
                menu_item_name.replace (pos, 1, "__");
@@ -1898,6 +2129,9 @@ Editor::add_region_context_items (AudioStreamView* sv, Region* region, Menu_Help
        edit_items.push_back (SeparatorElem());
 }
 
+/** Add context menu items relevant to selection ranges.
+ * @param edit_items List to add the items to.
+ */
 void
 Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
 {
@@ -1907,35 +2141,40 @@ 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)));
-#endif
+       items.push_back (MenuElem (_("Spectral Analysis"), mem_fun(*this, &Editor::analyze_range_selection)));
        
        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 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 (_("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 (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::name_selection)));
+       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)));
 }
 
+       
 void
 Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
 {
@@ -1947,7 +2186,7 @@ Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
        MenuList& play_items = play_menu->items();
        play_menu->set_name ("ArdourContextMenu");
        
-       play_items.push_back (MenuElem (_("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)));
        play_items.push_back (MenuElem (_("Play region"), mem_fun(*this, &Editor::play_selected_region)));
        play_items.push_back (SeparatorElem());
@@ -1969,11 +2208,14 @@ Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
        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 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)));
-       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 (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)));
+
        select_items.push_back (SeparatorElem());
 
        edit_items.push_back (MenuElem (_("Select"), *select_menu));
@@ -1986,8 +2228,7 @@ Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
        
        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 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 (MenuElem (_("Paste"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
 
        cutnpaste_items.push_back (SeparatorElem());
 
@@ -2004,7 +2245,7 @@ Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
        
        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 Audio"), bind (mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)));
+       edit_items.push_back (MenuElem (_("Insert Existing Media"), bind (mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)));
 
        /* Nudge track */
 
@@ -2014,9 +2255,9 @@ Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
        
        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 cursor fwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, 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 cursor bwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, 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 (_("Nudge"), *nudge_menu));
 }
@@ -2032,7 +2273,7 @@ Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
        MenuList& play_items = play_menu->items();
        play_menu->set_name ("ArdourContextMenu");
        
-       play_items.push_back (MenuElem (_("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)));
        edit_items.push_back (MenuElem (_("Play"), *play_menu));
 
@@ -2047,8 +2288,8 @@ Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
        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 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 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)));
 
@@ -2070,21 +2311,30 @@ Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
        
        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 cursor fwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, 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 cursor bwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, 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 (_("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;
-       vector<string> txt = internationalize (snap_type_strings);
-       snap_type_selector.set_active_text (txt[(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);
+       }
 
        instant_save ();
 
@@ -2094,7 +2344,17 @@ Editor::set_snap_to (SnapType st)
        case SnapToAEighthBeat:
        case SnapToAQuarterBeat:
        case SnapToAThirdBeat:
-                update_tempo_based_rulers ();
+               compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames());
+               update_tempo_based_rulers ();
+               break;
+
+       case SnapToRegionStart:
+       case SnapToRegionEnd:
+       case SnapToRegionSync:
+       case SnapToRegionBoundary:
+               build_region_boundary_cache ();
+               break;
+
        default:
                /* relax */
                break;
@@ -2105,74 +2365,204 @@ void
 Editor::set_snap_mode (SnapMode mode)
 {
        snap_mode = mode;
-       vector<string> txt = internationalize (snap_mode_strings);
-       snap_mode_selector.set_active_text (txt[(int)mode]);
+       string str = snap_mode_strings[(int)mode];
+
+       if (str != snap_mode_selector.get_active_text ()) {
+               snap_mode_selector.set_active_text (str);
+       }
 
        instant_save ();
 }
-
-int
-Editor::set_state (const XMLNode& node)
+void
+Editor::set_edit_point_preference (EditPoint ep, bool force)
 {
-       const XMLProperty* prop;
-       XMLNode* geometry;
-       int x, y, xoff, yoff;
-       Gdk::Geometry g;
+       bool changed = (_edit_point != ep);
 
+       _edit_point = ep;
+       string str = edit_point_strings[(int)ep];
 
-       if ((geometry = find_named_node (node, "geometry")) == 0) {
+       if (str != edit_point_selector.get_active_text ()) {
+               edit_point_selector.set_active_text (str);
+       }
 
-               g.base_width = default_width;
-               g.base_height = default_height;
-               x = 1;
-               y = 1;
-               xoff = 0;
-               yoff = 21;
+       set_canvas_cursor ();
 
-       } else {
+       if (!force && !changed) {
+               return;
+       }
 
-               g.base_width = atoi(geometry->property("x_size")->value());
-               g.base_height = atoi(geometry->property("y_size")->value());
-               x = atoi(geometry->property("x_pos")->value());
-               y = atoi(geometry->property("y_pos")->value());
-               xoff = atoi(geometry->property("x_off")->value());
-               yoff = atoi(geometry->property("y_off")->value());
+       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;
        }
 
-       set_default_size (g.base_width, g.base_height);
-       move (x, y);
+       const char* action=NULL;
 
-       if ((prop = node.property ("zoom-focus"))) {
-               set_zoom_focus ((ZoomFocus) atoi (prop->value()));
+       switch (_edit_point) {
+       case EditAtPlayhead:
+               action = "edit-at-playhead";
+               break;
+       case EditAtSelectedMarker:
+               action = "edit-at-marker";
+               break;
+       case EditAtMouse:
+               action = "edit-at-mouse";
+               break;
        }
 
-       if ((prop = node.property ("zoom"))) {
-               set_frames_per_unit (PBD::atof (prop->value()));
+       Glib::RefPtr<Action> act = ActionManager::get_action ("Editor", action);
+       if (act) {
+               Glib::RefPtr<RadioAction>::cast_dynamic(act)->set_active (true);
        }
 
-       if ((prop = node.property ("snap-to"))) {
-               set_snap_to ((SnapType) atoi (prop->value()));
-       }
+       nframes64_t foo;
+       bool in_track_canvas;
 
-       if ((prop = node.property ("snap-mode"))) {
-               set_snap_mode ((SnapMode) atoi (prop->value()));
+       if (!mouse_frame (foo, in_track_canvas)) {
+               in_track_canvas = false;
        }
 
-       if ((prop = node.property ("mouse-mode"))) {
-               MouseMode m = str2mousemode(prop->value());
-               mouse_mode = MouseMode ((int) m + 1); /* lie, force mode switch */
-               set_mouse_mode (m, true);
-       } else {
-               mouse_mode = MouseGain; /* lie, to force the mode switch */
-               set_mouse_mode (MouseObject, true);
-       }
+       reset_canvas_action_sensitivity (in_track_canvas);
 
-       if ((prop = node.property ("show-waveforms"))) {
-               bool yn = (prop->value() == "yes");
-               _show_waveforms = !yn;
-               RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleWaveformVisibility"));
-               if (act) {
-                       RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
+       instant_save ();
+}
+
+int
+Editor::set_state (const XMLNode& node)
+{
+       const XMLProperty* prop;
+       XMLNode* geometry;
+       int x, y, xoff, yoff;
+       Gdk::Geometry g;
+
+       if ((prop = node.property ("id")) != 0) {
+               _id = prop->value ();
+       }
+
+       g.base_width = default_width;
+       g.base_height = default_height;
+       x = 1;
+       y = 1;
+       xoff = 0;
+       yoff = 21;
+
+       if ((geometry = find_named_node (node, "geometry")) != 0) {
+
+               XMLProperty* prop;
+
+               if ((prop = geometry->property("x_size")) == 0) {
+                       prop = geometry->property ("x-size");
+               }
+               if (prop) {
+                       g.base_width = atoi(prop->value());
+               }
+               if ((prop = geometry->property("y_size")) == 0) {
+                       prop = geometry->property ("y-size");
+               }
+               if (prop) {
+                       g.base_height = atoi(prop->value());
+               }
+
+               if ((prop = geometry->property ("x_pos")) == 0) {
+                       prop = geometry->property ("x-pos");
+               }
+               if (prop) {
+                       x = atoi (prop->value());
+
+               }
+               if ((prop = geometry->property ("y_pos")) == 0) {
+                       prop = geometry->property ("y-pos");
+               }
+               if (prop) {
+                       y = atoi (prop->value());
+               }
+
+               if ((prop = geometry->property ("x_off")) == 0) {
+                       prop = geometry->property ("x-off");
+               }
+               if (prop) {
+                       xoff = atoi (prop->value());
+               }
+               if ((prop = geometry->property ("y_off")) == 0) {
+                       prop = geometry->property ("y-off");
+               }
+               if (prop) {
+                       yoff = atoi (prop->value());
+               }
+       }
+
+       set_default_size (g.base_width, g.base_height);
+       move (x, y);
+
+       if (session && (prop = node.property ("playhead"))) {
+               nframes64_t pos = atol (prop->value().c_str());
+               playhead_cursor->set_position (pos);
+       } else {
+               playhead_cursor->set_position (0);
+
+               /* reset_x_origin() doesn't work right here, since the old
+                  position may be zero already, and it does nothing in such
+                  circumstances.
+               */
+               
+               leftmost_frame = 0;
+               horizontal_adjustment.set_value (0);
+       }
+
+       if ((prop = node.property ("mixer-width"))) {
+               editor_mixer_strip_width = Width (string_2_enum (prop->value(), editor_mixer_strip_width));
+       }
+
+       if ((prop = node.property ("zoom-focus"))) {
+               set_zoom_focus ((ZoomFocus) atoi (prop->value()));
+       }
+
+       if ((prop = node.property ("zoom"))) {
+               reset_zoom (PBD::atof (prop->value()));
+       }
+
+       if ((prop = node.property ("snap-to"))) {
+               set_snap_to ((SnapType) atoi (prop->value()));
+       }
+
+       if ((prop = node.property ("snap-mode"))) {
+               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 */
+               set_mouse_mode (m, true);
+       } else {
+               mouse_mode = MouseGain; /* lie, to force the mode switch */
+               set_mouse_mode (MouseObject, true);
+       }
+
+       if ((prop = node.property ("show-waveforms"))) {
+               bool yn = (prop->value() == "yes");
+               _show_waveforms = !yn;
+               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 */
                        tact->set_active (!yn);
                        tact->set_active (yn);
@@ -2205,16 +2595,16 @@ Editor::set_state (const XMLNode& node)
 
        if ((prop = node.property ("follow-playhead"))) {
                bool yn = (prop->value() == "yes");
+               set_follow_playhead (yn);
                RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
                if (act) {
                        RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
-                       /* do it twice to force the change */
-                       tact->set_active (!yn);
-                       tact->set_active (yn);
+                       if (tact->get_active() != yn) {
+                               tact->set_active (yn);
+                       }
                }
        }
 
-
        if ((prop = node.property ("region-list-sort-type"))) {
                region_list_sort_type = (Editing::RegionListSortType) -1; // force change 
                reset_region_list_sort_type(str2regionlistsorttype(prop->value()));
@@ -2230,6 +2620,23 @@ Editor::set_state (const XMLNode& node)
 
                Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
                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);
+               }
+       }
+       
+       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"));
 
@@ -2240,6 +2647,7 @@ Editor::set_state (const XMLNode& node)
                }
        }
 
+
        return 0;
 }
 
@@ -2249,6 +2657,9 @@ Editor::get_state ()
        XMLNode* node = new XMLNode ("Editor");
        char buf[32];
 
+       _id.print (buf, sizeof (buf));
+       node->add_property ("id", buf);
+       
        if (is_realized()) {
                Glib::RefPtr<Gdk::Window> win = get_window();
                
@@ -2258,25 +2669,27 @@ Editor::get_state ()
                win->get_size(width, height);
                
                XMLNode* geometry = new XMLNode ("geometry");
-               char buf[32];
+
                snprintf(buf, sizeof(buf), "%d", width);
-               geometry->add_property("x_size", string(buf));
+               geometry->add_property("x-size", string(buf));
                snprintf(buf, sizeof(buf), "%d", height);
-               geometry->add_property("y_size", string(buf));
+               geometry->add_property("y-size", string(buf));
                snprintf(buf, sizeof(buf), "%d", x);
-               geometry->add_property("x_pos", string(buf));
+               geometry->add_property("x-pos", string(buf));
                snprintf(buf, sizeof(buf), "%d", y);
-               geometry->add_property("y_pos", string(buf));
+               geometry->add_property("y-pos", string(buf));
                snprintf(buf, sizeof(buf), "%d", xoff);
-               geometry->add_property("x_off", string(buf));
+               geometry->add_property("x-off", string(buf));
                snprintf(buf, sizeof(buf), "%d", yoff);
-               geometry->add_property("y_off", string(buf));
+               geometry->add_property("y-off", string(buf));
                snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&edit_pane)->gobj()));
                geometry->add_property("edit_pane_pos", string(buf));
 
                node->add_child_nocopy (*geometry);
        }
 
+       maybe_add_mixer_strip_width (*node);
+       
        snprintf (buf, sizeof(buf), "%d", (int) zoom_focus);
        node->add_property ("zoom-focus", buf);
        snprintf (buf, sizeof(buf), "%f", frames_per_unit);
@@ -2286,6 +2699,11 @@ Editor::get_state ()
        snprintf (buf, sizeof(buf), "%d", (int) snap_mode);
        node->add_property ("snap-mode", buf);
 
+       node->add_property ("edit-point", enum_2_string (_edit_point));
+
+       snprintf (buf, sizeof (buf), "%" PRIi64, playhead_cursor->current_frame);
+       node->add_property ("playhead", buf);
+
        node->add_property ("show-waveforms", _show_waveforms ? "yes" : "no");
        node->add_property ("show-waveforms-recording", _show_waveforms_recording ? "yes" : "no");
        node->add_property ("show-measures", _show_measures ? "yes" : "no");
@@ -2299,65 +2717,73 @@ 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;
 }
 
 
 
-TimeAxisView *
+/** @param y y offset from the top of all trackviews.
+ *  @return pair: TimeAxisView that y is over, layer index.
+ *  TimeAxisView may be 0.  Layer index is the layer number if the TimeAxisView is valid and is
+ *  in stacked region display mode, otherwise 0.
+ */
+std::pair<TimeAxisView *, layer_t>
 Editor::trackview_by_y_position (double y)
 {
-       TrackViewList::iterator iter;
-       TimeAxisView *tv;
+       for (TrackViewList::iterator iter = track_views.begin(); iter != track_views.end(); ++iter) {
 
-       for (iter = track_views.begin(); iter != track_views.end(); ++iter) {
-
-               tv = *iter;
-
-               if (tv->hidden()) {
-                       continue;
-               }
-
-               if (tv->y_position <= y && y < ((tv->y_position + tv->height + track_spacing))) {
-                       return tv;
+               std::pair<TimeAxisView*, int> const r = (*iter)->covers_y_position (y);
+               if (r.first) {
+                       return r;
                }
        }
 
-       return 0;
+       return std::make_pair ( (TimeAxisView *) 0, 0);
 }
 
 void
-Editor::snap_to (jack_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 jack_nframes_t one_second = session->frame_rate();
-       const jack_nframes_t one_minute = session->frame_rate() * 60;
+       snap_to_internal (start, direction, for_mark);
+}
 
-       jack_nframes_t presnap = start;
+void
+Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
+{
+       Location* before = 0;
+       Location* after = 0;
 
-       switch (snap_type) {
-       case SnapToFrame:
-               break;
+       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 = (jack_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 = (jack_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 (direction) {
-                       start = (jack_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 = (jack_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;
 
@@ -2368,10 +2794,10 @@ Editor::snap_to (jack_nframes_t& start, int32_t direction, bool for_mark)
                } else {
                        start -= session->smpte_offset ();
                }    
-               if (direction > 0) {
-                       start = (jack_nframes_t) ceil ((double) start / one_second) * one_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 = (jack_nframes_t) floor ((double) start / one_second) * one_second;
+                       start = (nframes64_t) floor ((double) start / one_smpte_second) * one_smpte_second;
                }
                
                if (session->smpte_offset_negative())
@@ -2389,10 +2815,10 @@ Editor::snap_to (jack_nframes_t& start, int32_t direction, bool for_mark)
                } else {
                        start -= session->smpte_offset ();
                }
-               if (direction) {
-                       start = (jack_nframes_t) ceil ((double) start / one_minute) * one_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 = (jack_nframes_t) floor ((double) start / one_minute) * one_minute;
+                       start = (nframes64_t) floor ((double) start / one_smpte_minute) * one_smpte_minute;
                }
                if (session->smpte_offset_negative())
                {
@@ -2403,18 +2829,18 @@ Editor::snap_to (jack_nframes_t& start, int32_t direction, bool for_mark)
                break;
                
        case SnapToSeconds:
-               if (direction) {
-                       start = (jack_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 = (jack_nframes_t) floor ((double) start / one_second) * one_second;
+                       start = (nframes64_t) floor ((double) start / one_second) * one_second;
                }
                break;
                
        case SnapToMinutes:
-               if (direction) {
-                       start = (jack_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 = (jack_nframes_t) floor ((double) start / one_minute) * one_minute;
+                       start = (nframes64_t) floor ((double) start / one_minute) * one_minute;
                }
                break;
 
@@ -2427,27 +2853,23 @@ Editor::snap_to (jack_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:
@@ -2495,7 +2917,7 @@ Editor::snap_to (jack_nframes_t& start, int32_t direction, bool for_mark)
        case SnapToRegionSync:
        case SnapToRegionBoundary:
                if (!region_boundary_cache.empty()) {
-                       vector<jack_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);
@@ -2504,11 +2926,19 @@ Editor::snap_to (jack_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;
        }
 
@@ -2530,40 +2960,92 @@ Editor::snap_to (jack_nframes_t& start, int32_t direction, bool for_mark)
                }
                
        default:
+               /* handled at entry */
                return;
                
        }
 }
 
+double
+Editor::snap_length_beats (nframes64_t start)
+{
+       if (!session) {
+               return 1.0;
+       }
+
+       /* 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();
+
+       case SnapToBeat:
+               return 1.0;
+
+       case SnapToAThirtysecondBeat:
+               return 1.0 / (double)32.0;
+               break;
+
+       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;
 
-       const guint32 FUDGE = 18; // Combo's are stupid - they steal space from the entry for the button
-
+#ifdef GTKOSX
+       const guint32 FUDGE = 38; // Combo's are stupid - they steal space from the entry for the button
+#else
+       const guint32 FUDGE = 24; // 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_xpm("tool_object.xpm")))));
+       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_xpm("tool_gain.xpm")))));
-       mouse_gain_button.set_relief(Gtk::RELIEF_NONE);
-       mouse_mode_buttons.push_back (&mouse_gain_button);
-       mouse_zoom_button.add (*(manage (new Image (get_xpm("tool_zoom.xpm")))));
+
+       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);
-       mouse_timefx_button.add (*(manage (new Image (get_xpm("tool_stretch.xpm")))));
+       mouse_timefx_button.add (*(manage (new Image (::get_icon("tool_stretch")))));
        mouse_timefx_button.set_relief(Gtk::RELIEF_NONE);
        mouse_mode_buttons.push_back (&mouse_timefx_button);
-       mouse_audition_button.add (*(manage (new Image (get_xpm("tool_audition.xpm")))));
+       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);
@@ -2573,16 +3055,28 @@ 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 (Slide));
+       if (!Profile->get_sae()) {
+               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, "Splice Edit", 2+FUDGE, 10);
-       set_popdown_strings (edit_mode_selector, internationalize (edit_mode_strings));
+       Gtkmm2ext::set_size_request_to_display_given_text (edit_mode_selector, longest (edit_mode_strings).c_str(), 2+FUDGE, 10);
+       set_popdown_strings (edit_mode_selector, edit_mode_strings);
        edit_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_mode_selection_done));
 
        mode_box->pack_start(edit_mode_selector);
@@ -2591,6 +3085,10 @@ Editor::setup_toolbar ()
        mouse_mode_tearoff = manage (new TearOff (*mode_box));
        mouse_mode_tearoff->set_name ("MouseModeBase");
 
+       if (Profile->get_sae()) {
+               mouse_mode_tearoff->set_can_be_torn_off (false);
+       }
+
        mouse_mode_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox), 
                                                  &mouse_mode_tearoff->tearoff_window()));
        mouse_mode_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox), 
@@ -2606,6 +3104,7 @@ 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"));
@@ -2613,6 +3112,7 @@ 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);
@@ -2620,6 +3120,7 @@ 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));
@@ -2629,6 +3130,7 @@ 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);
        
@@ -2636,58 +3138,62 @@ 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.add (*(manage (new Image (get_xpm("zoom_in.xpm")))));
+       zoom_in_button.set_size_request(-1,16);
+       zoom_in_button.add (*(manage (new Image (::get_icon("zoom_in")))));
        zoom_in_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), false));
        ARDOUR_UI::instance()->tooltips().set_tip (zoom_in_button, _("Zoom In"));
        
        zoom_out_button.set_name ("EditorTimeButton");
-       zoom_out_button.add (*(manage (new Image (get_xpm("zoom_out.xpm")))));
+       zoom_out_button.set_size_request(-1,16);
+       zoom_out_button.add (*(manage (new Image (::get_icon("zoom_out")))));
        zoom_out_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), true));
        ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_button, _("Zoom Out"));
 
        zoom_out_full_button.set_name ("EditorTimeButton");
-       zoom_out_full_button.add (*(manage (new Image (get_xpm("zoom_full.xpm")))));
+       zoom_out_full_button.set_size_request(-1,16);
+       zoom_out_full_button.add (*(manage (new Image (::get_icon("zoom_full")))));
        zoom_out_full_button.signal_clicked().connect (mem_fun(*this, &Editor::temporal_zoom_session));
        ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_full_button, _("Zoom to Session"));
-       
-       zoom_box.pack_start (zoom_out_button, false, false);
-       zoom_box.pack_start (zoom_in_button, false, false);
-       zoom_box.pack_start (zoom_range_clock, false, false);   
-       zoom_box.pack_start (zoom_out_full_button, false, false);
-       
-       ARDOUR_UI::instance()->tooltips().set_tip (zoom_range_clock, _("Current Zoom Range\n(Width of visible area)"));
-       
+
        zoom_focus_selector.set_name ("ZoomFocusSelector");
-       Gtkmm2ext::set_size_request_to_display_given_text (zoom_focus_selector, "Focus Center", 2+FUDGE, 0);
-       set_popdown_strings (zoom_focus_selector, internationalize (zoom_focus_strings));
+       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"));
 
-       zoom_box.pack_start (zoom_focus_selector, false, false);
-
-
-       /* Edit Cursor / Snap */
+       zoom_box.pack_start (zoom_focus_selector, true, true);
+       zoom_box.pack_start (zoom_out_button, false, false);
+       zoom_box.pack_start (zoom_in_button, false, false);
+       zoom_box.pack_start (zoom_out_full_button, false, false);
 
        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);
-       set_popdown_strings (snap_type_selector, internationalize (snap_type_strings));
+       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);
-       set_popdown_strings (snap_mode_selector, internationalize (snap_mode_strings));
+       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 */
 
@@ -2695,8 +3201,8 @@ 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);
@@ -2705,12 +3211,16 @@ 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");
 
+       if (Profile->get_sae()) {
+               tools_tearoff->set_can_be_torn_off (false);
+       }
+
        tools_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox), 
                                             &tools_tearoff->tearoff_window()));
        tools_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox), 
@@ -2728,7 +3238,7 @@ Editor::setup_toolbar ()
 
        
        hbox->pack_start (snap_box, false, false);
-       hbox->pack_start (zoom_box, false, false); 
+       // hbox->pack_start (zoom_box, false, false); 
        hbox->pack_start (*nudge_box, false, false);
 
        hbox->show_all ();
@@ -2741,6 +3251,123 @@ Editor::setup_toolbar ()
        toolbar_frame.add (toolbar_base);
 }
 
+void
+Editor::midi_panic_button_pressed ()
+{
+       if (session) {
+               session->midi_panic();
+       }
+}
+
+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));
+
+       
+       /* Midi sound notes */
+       midi_sound_notes.add (*(manage (new Image (::get_icon("midi_sound_notes")))));
+       midi_sound_notes.set_relief(Gtk::RELIEF_NONE);
+       ARDOUR_UI::instance()->tooltips().set_tip (midi_sound_notes, _("Sound Notes"));
+       midi_sound_notes.unset_flags (CAN_FOCUS);
+       
+       /* Panic */
+       
+       HBox* panic_box = manage (new HBox);
+       midi_panic_button.set_name("MidiPanicButton");
+       midi_panic_button.signal_pressed().connect (
+                       mem_fun(this, &Editor::midi_panic_button_pressed));
+       panic_box->pack_start (midi_sound_notes , true, true);
+       panic_box->pack_start (midi_panic_button, true, true);
+       
+       /* 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_toolbar_hbox.pack_start(*panic_box, false, true, 4);
+
+       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,
@@ -2758,7 +3385,7 @@ 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.
                */
@@ -2768,12 +3395,19 @@ Editor::convert_drop_to_paths (vector<ustring>& paths,
                }
   
                /* Parse the "uri-list" format that Nautilus provides, 
-                  where each pathname is delimited by \r\n
+                  where each pathname is delimited by \r\n.
+
+                  THERE MAY BE NO NULL TERMINATING CHAR!!!
                */
-       
-               const char* p = data.get_text().c_str();
+
+               ustring txt = data.get_text();
+               const char* p;
                const char* q;
 
+               p = (const char *) malloc (txt.length() + 1);
+               txt.copy ((char *) p, txt.length(), 0);
+               ((char*)p)[txt.length()] = '\0';
+
                while (p)
                {
                        if (*p != '#')
@@ -2782,8 +3416,9 @@ Editor::convert_drop_to_paths (vector<ustring>& paths,
                                        p++;
                                
                                q = p;
-                               while (*q && (*q != '\n') && (*q != '\r'))
+                               while (*q && (*q != '\n') && (*q != '\r')) {
                                        q++;
+                               }
                                
                                if (q > p)
                                {
@@ -2802,16 +3437,42 @@ Editor::convert_drop_to_paths (vector<ustring>& paths,
                                p++;
                }
 
+               free ((void*)p);
+               
                if (uris.empty()) {
                        return -1;
                }
        }
        
        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));
                }
        }
 
@@ -2832,13 +3493,15 @@ Editor::map_transport_state ()
        if (session->transport_stopped()) {
                have_pending_keyboard_selection = false;
        }
+
+       update_loop_range_view (true);
 }
 
 /* UNDO/REDO */
 
-Editor::State::State ()
+Editor::State::State (PublicEditor const * e)
 {
-       selection = new Selection;
+       selection = new Selection (e);
 }
 
 Editor::State::~State ()
@@ -2849,7 +3512,7 @@ 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);
@@ -2870,7 +3533,7 @@ Editor::restore_state (State *state)
 
        *selection = *state->selection;
        time_selection_changed ();
-       region_selection_changed ();   
+       region_selection_changed ();
 
        /* XXX other selection change handlers? */
 }
 Editor::commit_reversible_command ()
 {
        if (session) {
-               session->commit_reversible_command (new MementoCommand<Editor>(*this, *before, get_state()));
+               session->commit_reversible_command (new MementoCommand<Editor>(*this, before, &get_state()));
        }
 }
 
-bool
-Editor::set_selected_track_from_click (bool press, Selection::Operation op, bool with_undo, bool no_remove)
+void
+Editor::set_edit_group_solo (Route& route, bool yn)
 {
-       bool commit = false;
+       RouteGroup *edit_group;
 
-       if (!clicked_trackview) {
-               return false;
+       if ((edit_group = route.edit_group()) != 0) {
+               edit_group->apply (&Route::set_solo, yn, this);
+       } else {
+               route.set_solo (yn, this);
        }
+}
 
-       switch (op) {
-       case Selection::Toggle:
-               if (selection->selected (clicked_trackview)) {
-                       if (!no_remove) {
-                               selection->remove (clicked_trackview);
-                               commit = true;
-                       }
-               } else {
-                       selection->add (clicked_trackview);
-                       commit = false;
-               }
-               break;
-
-       case Selection::Set:
-               if (selection->selected (clicked_trackview) && selection->tracks.size() == 1) {
-                       /* no commit necessary */
-               } 
+void
+Editor::set_edit_group_mute (Route& route, bool yn)
+{
+       RouteGroup *edit_group = 0;
 
-               selection->set (clicked_trackview);
-               break;
+       if ((edit_group == route.edit_group()) != 0) {
+               edit_group->apply (&Route::set_mute, yn, this);
+       } else {
+               route.set_mute (yn, this);
+       }
+}
                
-       case Selection::Extend:
-               /* not defined yet */
-               break;
+void
+Editor::history_changed ()
+{
+       string label;
+
+       if (undo_action && session) {
+               if (session->undo_depth() == 0) {
+                       label = _("Undo");
+               } else {
+                       label = string_compose(_("Undo (%1)"), session->next_undo());
+               }
+               undo_action->property_label() = label;
        }
 
-       return commit;
+       if (redo_action && session) {
+               if (session->redo_depth() == 0) {
+                       label = _("Redo");
+               } else {
+                       label = string_compose(_("Redo (%1)"), session->next_redo());
+               }
+               redo_action->property_label() = label;
+       }
 }
 
-bool
-Editor::set_selected_control_point_from_click (bool press, Selection::Operation op, bool with_undo, bool no_remove)
+void
+Editor::duplicate_dialog (bool with_dialog)
 {
-       if (!clicked_control_point) {
-               return false;
+       float times = 1.0f;
+
+       if (mouse_mode == MouseRange) {
+               if (selection->time.length() == 0) {
+                       return;
+               }
+       }
+
+       RegionSelection rs;
+       get_regions_for_action (rs);
+       
+       if (mouse_mode != MouseRange) {
+
+               if (rs.empty()) {
+                       return;
+               }
        }
 
-       /* select this point and any others that it represents */
+       if (with_dialog) {
 
-       double y1, y2;
-       jack_nframes_t x1, x2;
+               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();
 
-       x1 = pixel_to_frame (clicked_control_point->get_x() - 10);
-       x2 = pixel_to_frame (clicked_control_point->get_x() + 10);
-       y1 = clicked_control_point->get_x() - 10;
-       y2 = clicked_control_point->get_y() + 10;
+               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();
+       }
 
-       return select_all_within (x1, x2, y1, y2, op);
+       if (mouse_mode == MouseRange) {
+               duplicate_selection (times);
+       } else {
+               duplicate_some_regions (rs, times);
+       }
 }
 
 void
-Editor::get_relevant_audio_tracks (AudioTimeAxisView& base, set<AudioTimeAxisView*>& relevant_tracks)
+Editor::show_verbose_canvas_cursor ()
 {
-       /* step one: get all selected tracks and all tracks in the relevant edit groups */
+       verbose_canvas_cursor->raise_to_top();
+       verbose_canvas_cursor->show();
+       verbose_cursor_visible = true;
+}
 
-       for (TrackSelection::iterator ti = selection->tracks.begin(); ti != selection->tracks.end(); ++ti) {
+void
+Editor::hide_verbose_canvas_cursor ()
+{
+       verbose_canvas_cursor->hide();
+       verbose_cursor_visible = false;
+}
 
-               AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(*ti);
+double
+Editor::clamp_verbose_cursor_x (double x)
+{
+       if (x < 0) {
+               x = 0;
+       } else {
+               x = min (canvas_width - 200.0, x);
+       }
+       return x;
+}
 
-               if (!atv) {
-                       continue;
-               }
+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;
+}
 
-               RouteGroup* group = atv->route()->edit_group();
+void
+Editor::set_verbose_canvas_cursor (const string & txt, double x, double y)
+{
+       verbose_canvas_cursor->property_text() = txt.c_str();
+       /* 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);
+}
 
-               if (group && group->is_active()) {
-                       
-                       /* active group for this track, loop over all tracks and get every member of the group */
+void
+Editor::set_verbose_canvas_cursor_text (const string & txt)
+{
+       verbose_canvas_cursor->property_text() = txt.c_str();
+}
 
-                       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-                               
-                               AudioTimeAxisView* tatv;
-                               
-                               if ((tatv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
-                                       
-                                       if (tatv->route()->edit_group() == group) {
-                                               relevant_tracks.insert (tatv);
-                                       }
-                               }
-                       }
+void
+Editor::set_edit_mode (EditMode m)
+{
+       Config->set_edit_mode (m);
+}
 
+void
+Editor::cycle_edit_mode ()
+{
+       switch (Config->get_edit_mode()) {
+       case Slide:
+               if (Profile->get_sae()) {
+                       Config->set_edit_mode (Lock);
                } else {
-
-                       /* no active group, or no group */
-
-                       relevant_tracks.insert (&base);
+                       Config->set_edit_mode (Splice);
                }
-
+               break;
+       case Splice:
+               Config->set_edit_mode (Lock);
+               break;
+       case Lock:
+               Config->set_edit_mode (Slide);
+               break;
        }
 }
 
 void
-Editor::mapover_audio_tracks (slot<void,AudioTimeAxisView&,uint32_t> sl)
+Editor::edit_mode_selection_done ()
 {
-       set<AudioTimeAxisView*> relevant_tracks;
-
-       if (!clicked_audio_trackview) {
+       if (session == 0) {
                return;
        }
 
-       get_relevant_audio_tracks (*clicked_audio_trackview, relevant_tracks);
+       string choice = edit_mode_selector.get_active_text();
+       EditMode mode = Slide;
 
-       uint32_t sz = relevant_tracks.size();
-       
-       for (set<AudioTimeAxisView*>::iterator ati = relevant_tracks.begin(); ati != relevant_tracks.end(); ++ati) {
-               sl (**ati, sz);
+       if (choice == _("Splice Edit")) {
+               mode = Splice;
+       } else if (choice == _("Slide Edit")) {
+               mode = Slide;
+       } else if (choice == _("Lock Edit")) {
+               mode = Lock;
        }
-}
+
+       Config->set_edit_mode (mode);
+}      
 
 void
-Editor::mapped_set_selected_regionview_from_click (RouteTimeAxisView& tv, uint32_t ignored, 
-                                                 RegionView* basis, vector<RegionView*>* all_equivs)
+Editor::snap_type_selection_done ()
 {
-       Playlist* pl;
-       vector<Region*> results;
-       RegionView* marv;
-       Diskstream* ds;
-
-       if ((ds = tv.get_diskstream()) == 0) {
-               /* bus */
-               return;
-       }
+       string choice = snap_type_selector.get_active_text();
+       SnapType snaptype = SnapToBeat;
 
-       if (&tv == &basis->get_time_axis_view()) {
-               /* looking in same track as the original */
-               return;
+       if (choice == _("Beats/3")) {
+               snaptype = SnapToAThirdBeat;
+       } else if (choice == _("Beats/4")) {
+               snaptype = SnapToAQuarterBeat;
+       } else if (choice == _("Beats/8")) {
+               snaptype = SnapToAEighthBeat;
+       } else if (choice == _("Beats/16")) {
+               snaptype = SnapToASixteenthBeat;
+       } else if (choice == _("Beats/32")) {
+               snaptype = SnapToAThirtysecondBeat;
+       } else if (choice == _("Beats")) {
+               snaptype = SnapToBeat;
+       } else if (choice == _("Bars")) {
+               snaptype = SnapToBar;
+       } else if (choice == _("Marks")) {
+               snaptype = SnapToMark;
+       } else if (choice == _("Region starts")) {
+               snaptype = SnapToRegionStart;
+       } else if (choice == _("Region ends")) {
+               snaptype = SnapToRegionEnd;
+       } else if (choice == _("Region bounds")) {
+               snaptype = SnapToRegionBoundary;
+       } else if (choice == _("Region syncs")) {
+               snaptype = SnapToRegionSync;
+       } else if (choice == _("CD Frames")) {
+               snaptype = SnapToCDFrame;
+       } else if (choice == _("SMPTE Frames")) {
+               snaptype = SnapToSMPTEFrame;
+       } else if (choice == _("SMPTE Seconds")) {
+               snaptype = SnapToSMPTESeconds;
+       } else if (choice == _("SMPTE Minutes")) {
+               snaptype = SnapToSMPTEMinutes;
+       } else if (choice == _("Seconds")) {
+               snaptype = SnapToSeconds;
+       } else if (choice == _("Minutes")) {
+               snaptype = SnapToMinutes;
        }
 
-       
-       if ((pl = dynamic_cast<Playlist*>(ds->playlist())) != 0) {
-               pl->get_equivalent_regions (basis->region(), results);
-       }
-       
-       for (vector<Region*>::iterator ir = results.begin(); ir != results.end(); ++ir) {
-               if ((marv = tv.view()->find_view (**ir)) != 0) {
-                       all_equivs->push_back (marv);
-               }
+       RefPtr<RadioAction> ract = snap_type_action (snaptype);
+       if (ract) {
+               ract->set_active ();
        }
-}
+}      
 
-bool
-Editor::set_selected_regionview_from_click (bool press, Selection::Operation op, bool no_track_remove)
+void
+Editor::snap_mode_selection_done ()
 {
-       vector<RegionView*> all_equivalent_regions;
-       bool commit = false;
+       string choice = snap_mode_selector.get_active_text();
+       SnapMode mode = SnapNormal;
 
-       if (!clicked_regionview || !clicked_audio_trackview) {
-               return false;
+       if (choice == _("No Grid")) {
+               mode = SnapOff;
+       } else if (choice == _("Grid")) {
+               mode = SnapNormal;
+       } else if (choice == _("Magnetic")) {
+               mode = SnapMagnetic;
        }
 
-       if (op == Selection::Toggle || op == Selection::Set) {
-               
-               mapover_audio_tracks (bind (mem_fun (*this, &Editor::mapped_set_selected_regionview_from_click), 
-                                           clicked_regionview, &all_equivalent_regions));
-               
-               
-               /* add clicked regionview since we skipped all other regions in the same track as the one it was in */
-               
-               all_equivalent_regions.push_back (clicked_regionview);
-               
-               switch (op) {
-               case Selection::Toggle:
-                       
-                       if (clicked_regionview->get_selected()) {
-                               if (press) {
+       RefPtr<RadioAction> ract = snap_mode_action (mode);
 
-                                       /* whatever was clicked was selected already; do nothing here but allow
-                                          the button release to deselect it
-                                       */
+       if (ract) {
+               ract->set_active (true);
+       }
+}
 
-                                       button_release_can_deselect = true;
+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;
+       }
+}
 
-                               } else {
+void
+Editor::edit_point_selection_done ()
+{
+       string choice = edit_point_selector.get_active_text();
+       EditPoint ep = EditAtSelectedMarker;
 
-                                       if (button_release_can_deselect) {
+       if (choice == _("Marker")) {
+               set_edit_point_preference (EditAtSelectedMarker);
+       } else if (choice == _("Playhead")) {
+               set_edit_point_preference (EditAtPlayhead);
+       } else {
+               set_edit_point_preference (EditAtMouse);
+       }
 
-                                               /* just remove this one region, but only on a permitted button release */
+       RefPtr<RadioAction> ract = edit_point_action (ep);
 
-                                               selection->remove (clicked_regionview);
-                                               commit = true;
+       if (ract) {
+               ract->set_active (true);
+       }
+}
 
-                                               /* no more deselect action on button release till a new press
-                                                  finds an already selected object.
-                                               */
+void
+Editor::zoom_focus_selection_done ()
+{
+       string choice = zoom_focus_selector.get_active_text();
+       ZoomFocus focus_type = ZoomFocusLeft;
 
-                                               button_release_can_deselect = false;
-                                       }
-                               } 
+       if (choice == _("Left")) {
+               focus_type = ZoomFocusLeft;
+       } else if (choice == _("Right")) {
+               focus_type = ZoomFocusRight;
+       } else if (choice == _("Center")) {
+               focus_type = ZoomFocusCenter;
+       } else if (choice == _("Play")) {
+               focus_type = ZoomFocusPlayhead;
+       } 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);
 
-                       } else {
+       if (ract) {
+               ract->set_active ();
+       }
+}      
 
-                               if (press) {
-                                       /* add all the equivalent regions, but only on button press */
-                                       
-                                       if (!all_equivalent_regions.empty()) {
-                                               commit = true;
-                                       }
-                                       
-                                       for (vector<RegionView*>::iterator i = all_equivalent_regions.begin(); i != all_equivalent_regions.end(); ++i) {
-                                               selection->add (*i);
-                                       }
-                               } 
-                       }
-                       break;
-                       
-               case Selection::Set:
-                       if (!clicked_regionview->get_selected()) {
-                               selection->set (all_equivalent_regions);
-                               commit = true;
-                       } else {
-                               /* no commit necessary: clicked on an already selected region */
-                               goto out;
-                       }
-                       break;
+gint
+Editor::edit_controls_button_release (GdkEventButton* ev)
+{
+       if (Keyboard::is_context_menu_event (ev)) {
+               ARDOUR_UI::instance()->add_route (this);
+       }
+       return TRUE;
+}
 
-               default:
-                       /* silly compiler */
-                       break;
-               }
+gint
+Editor::mouse_select_button_release (GdkEventButton* ev)
+{
+       /* this handles just right-clicks */
 
-       } else if (op == Selection::Extend) {
+       if (ev->button != 3) {
+               return false;
+       }
 
-               list<Selectable*> results;
-               jack_nframes_t last_frame;
-               jack_nframes_t first_frame;
+       return true;
+}
 
-               /* 1. find the last selected regionview in the track that was clicked in */
+Editor::TrackViewList *
+Editor::get_valid_views (TimeAxisView* track, RouteGroup* group)
+{
+       TrackViewList *v;
+       TrackViewList::iterator i;
 
-               last_frame = 0;
-               first_frame = max_frames;
+       v = new TrackViewList;
 
-               for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
-                       if (&(*x)->get_time_axis_view() == &clicked_regionview->get_time_axis_view()) {
+       if (track == 0 && group == 0) {
 
-                               if ((*x)->region().last_frame() > last_frame) {
-                                       last_frame = (*x)->region().last_frame();
-                               }
+               /* all views */
 
-                               if ((*x)->region().first_frame() < first_frame) {
-                                       first_frame = (*x)->region().first_frame();
-                               }
-                       }
+               for (i = track_views.begin(); i != track_views.end (); ++i) {
+                       v->push_back (*i);
                }
 
-               /* 2. figure out the boundaries for our search for new objects */
+       } else if ((track != 0 && group == 0) || (track != 0 && group != 0 && !group->is_active())) {
+               
+               /* just the view for this track
+                */
 
-               switch (clicked_regionview->region().coverage (first_frame, last_frame)) {
-               case OverlapNone:
-                       cerr << "no overlap, first = " << first_frame << " last = " << last_frame << " region = " 
-                            << clicked_regionview->region().first_frame() << " .. " << clicked_regionview->region().last_frame() << endl;
+               v->push_back (track);
 
-                       if (last_frame < clicked_regionview->region().first_frame()) {
-                               first_frame = last_frame;
-                               last_frame = clicked_regionview->region().last_frame();
-                       } else {
-                               last_frame = first_frame;
-                               first_frame = clicked_regionview->region().first_frame();
+       } else {
+               
+               /* views for all tracks in the edit group */
+               
+               for (i  = track_views.begin(); i != track_views.end (); ++i) {
+
+                       if (group == 0 || (*i)->edit_group() == group) {
+                               v->push_back (*i);
                        }
-                       break;
+               }
+       }
+       
+       return v;
+}
 
-               case OverlapExternal:
-                       cerr << "external overlap, first = " << first_frame << " last = " << last_frame << " region = " 
-                            << clicked_regionview->region().first_frame() << " .. " << clicked_regionview->region().last_frame() << endl;
+void
+Editor::set_zoom_focus (ZoomFocus f)
+{
+       string str = zoom_focus_strings[(int)f];
 
-                       if (last_frame < clicked_regionview->region().first_frame()) {
-                               first_frame = last_frame;
-                               last_frame = clicked_regionview->region().last_frame();
-                       } else {
-                               last_frame = first_frame;
-                               first_frame = clicked_regionview->region().first_frame();
-                       }
-                       break;
+       if (str != zoom_focus_selector.get_active_text()) {
+               zoom_focus_selector.set_active_text (str);
+       }
+       
+       if (zoom_focus != f) {
+               zoom_focus = f;
 
-               case OverlapInternal:
-                       cerr << "internal overlap, first = " << first_frame << " last = " << last_frame << " region = " 
-                            << clicked_regionview->region().first_frame() << " .. " << clicked_regionview->region().last_frame() << endl;
+               ZoomFocusChanged (); /* EMIT_SIGNAL */
 
-                       if (last_frame < clicked_regionview->region().first_frame()) {
-                               first_frame = last_frame;
-                               last_frame = clicked_regionview->region().last_frame();
-                       } else {
-                               last_frame = first_frame;
-                               first_frame = clicked_regionview->region().first_frame();
-                       }
-                       break;
+               instant_save ();
+       }
+}
 
-               case OverlapStart:
-               case OverlapEnd:
-                       /* nothing to do except add clicked region to selection, since it
-                          overlaps with the existing selection in this track.
-                       */
-                       break;
-               }
+void
+Editor::ensure_float (Window& win)
+{
+       win.set_transient_for (*this);
+}
 
-               /* 2. find all selectable objects (regionviews in this case) between that one and the end of the
-                     one that was clicked.
-               */
+void 
+Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
+{
+       /* recover or initialize pane positions. do this here rather than earlier because
+          we don't want the positions to change the child allocations, which they seem to do.
+        */
 
-               set<AudioTimeAxisView*> relevant_tracks;
-               
-               get_relevant_audio_tracks (*clicked_audio_trackview, relevant_tracks);
-               
-               for (set<AudioTimeAxisView*>::iterator t = relevant_tracks.begin(); t != relevant_tracks.end(); ++t) {
-                       (*t)->get_selectables (first_frame, last_frame, -1.0, -1.0, results);
+       int pos;
+       XMLProperty* prop;
+       char buf[32];
+       XMLNode* node = ARDOUR_UI::instance()->editor_settings();
+       int width, height;
+       static int32_t done;
+       XMLNode* geometry;
+
+       width = default_width;
+       height = default_height;
+
+       if ((geometry = find_named_node (*node, "geometry")) != 0) {
+
+               if ((prop = geometry->property ("x_size")) == 0) {
+                       prop = geometry->property ("x-size");
                }
-               
-               /* 3. convert to a vector of audio regions */
+               if (prop) {
+                       width = atoi (prop->value());
+               }
+               if ((prop = geometry->property ("y_size")) == 0) {
+                       prop = geometry->property ("y-size");
+               }
+               if (prop) {
+                       height = atoi (prop->value());
+               }
+       }
 
-               vector<RegionView*> regions;
-               
-               for (list<Selectable*>::iterator x = results.begin(); x != results.end(); ++x) {
-                       RegionView* arv;
+       if (which == static_cast<Paned*> (&edit_pane)) {
 
-                       if ((arv = dynamic_cast<RegionView*>(*x)) != 0) {
-                               regions.push_back (arv);
-                       }
+               if (done) {
+                       return;
+               }
+
+               if (!geometry || (prop = geometry->property ("edit-pane-pos")) == 0) {
+                       /* initial allocation is 90% to canvas, 10% to notebook */
+                       pos = (int) floor (alloc.get_width() * 0.90f);
+                       snprintf (buf, sizeof(buf), "%d", pos);
+               } else {
+                       pos = atoi (prop->value());
                }
 
-               if (!regions.empty()) {
-                       selection->add (regions);
-                       commit = true;
+               if ((done = GTK_WIDGET(edit_pane.gobj())->allocation.width > pos)) {
+                       edit_pane.set_position (pos);
+                       pre_maximal_pane_position = pos;
                }
        }
+}
 
-  out:
-       return commit;
+void
+Editor::detach_tearoff (Box* b, Window* w)
+{
+       if (tools_tearoff->torn_off() && 
+           mouse_mode_tearoff->torn_off()) {
+               top_hbox.remove (toolbar_frame);
+       }
 }
 
 void
-Editor::set_selected_regionview_from_region_list (Region& region, Selection::Operation op)
+Editor::reattach_tearoff (Box* b, Window* w, int32_t n)
 {
-       vector<RegionView*> all_equivalent_regions;
+       if (toolbar_frame.get_parent() == 0) {
+               top_hbox.pack_end (toolbar_frame);
+       }
+}
 
-       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-               
-               RouteTimeAxisView* tatv;
-               
-               if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
-                       
-                       Playlist* pl;
-                       vector<Region*> results;
-                       RegionView* marv;
-                       Diskstream* ds;
-                       
-                       if ((ds = tatv->get_diskstream()) == 0) {
-                               /* bus */
-                               continue;
-                       }
+void
+Editor::set_show_measures (bool yn)
+{
+       if (_show_measures != yn) {
+               hide_measures ();
 
-                       if ((pl = dynamic_cast<Playlist*>(ds->playlist())) != 0) {
-                               pl->get_region_list_equivalent_regions (region, results);
-                       }
-                       
-                       for (vector<Region*>::iterator ir = results.begin(); ir != results.end(); ++ir) {
-                               if ((marv = tatv->view()->find_view (**ir)) != 0) {
-                                       all_equivalent_regions.push_back (marv);
-                               }
-                       }
-                       
+               if ((_show_measures = yn) == true) {
+                       if (tempo_lines)
+                               tempo_lines->show();
+                       draw_measures ();
                }
+               instant_save ();
+       }
+}
+
+void
+Editor::toggle_follow_playhead ()
+{
+       RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
+       if (act) {
+               RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
+               set_follow_playhead (tact->get_active());
+       }
+}
+
+void
+Editor::set_follow_playhead (bool yn)
+{
+       if (_follow_playhead != yn) {
+               if ((_follow_playhead = yn) == true) {
+                       /* catch up */
+                       update_current_screen ();
+               }
+               instant_save ();
+       }
+}
+
+void
+Editor::toggle_xfade_active (boost::weak_ptr<Crossfade> wxfade)
+{
+       boost::shared_ptr<Crossfade> xfade (wxfade.lock());
+       if (xfade) {
+               xfade->set_active (!xfade->active());
+       }
+}
+
+void
+Editor::toggle_xfade_length (boost::weak_ptr<Crossfade> wxfade)
+{
+       boost::shared_ptr<Crossfade> xfade (wxfade.lock());
+       if (xfade) {
+               xfade->set_follow_overlap (!xfade->following_overlap());
+       }
+}
+
+void
+Editor::edit_xfade (boost::weak_ptr<Crossfade> wxfade)
+{
+       boost::shared_ptr<Crossfade> xfade (wxfade.lock());
+
+       if (!xfade) {
+               return;
+       }
+
+       CrossfadeEditor cew (*session, xfade, xfade->fade_in().get_min_y(), 1.0);
+               
+       ensure_float (cew);
+       
+       switch (cew.run ()) {
+       case RESPONSE_ACCEPT:
+               break;
+       default:
+               return;
        }
        
-       begin_reversible_command (_("set selected regions"));
+       cew.apply ();
+       xfade->StateChanged (Change (~0));
+}
+
+PlaylistSelector&
+Editor::playlist_selector () const
+{
+       return *_playlist_selector;
+}
+
+nframes64_t
+Editor::get_nudge_distance (nframes64_t pos, nframes64_t& next)
+{
+       nframes64_t ret;
+
+       ret = nudge_clock.current_duration (pos);
+       next = ret + 1; /* XXXX fix me */
+
+       return ret;
+}
+
+void
+Editor::end_location_changed (Location* location)
+{
+       ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::end_location_changed), location));
+       //reset_scrolling_region ();
+       nframes64_t session_span = location->start() + (nframes64_t) floorf (current_page_frames() * 0.10f);
+       horizontal_adjustment.set_upper (session_span / frames_per_unit);
+}
+
+int
+Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
+{
+       ArdourDialog dialog ("playlist deletion dialog");
+       Label  label (string_compose (_("Playlist %1 is currently unused.\n"
+                                       "If left alone, no audio files used by it will be cleaned.\n"
+                                       "If deleted, audio files used by it alone by will cleaned."),
+                                     pl->name()));
        
-       switch (op) {
-       case Selection::Toggle:
-               /* XXX this is not correct */
-               selection->toggle (all_equivalent_regions);
+       dialog.set_position (WIN_POS_CENTER);
+       dialog.get_vbox()->pack_start (label);
+
+       label.show ();
+
+       dialog.add_button (_("Delete playlist"), RESPONSE_ACCEPT);
+       dialog.add_button (_("Keep playlist"), RESPONSE_REJECT);
+       dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
+
+       switch (dialog.run ()) {
+       case RESPONSE_ACCEPT:
+               /* delete the playlist */
+               return 0;
                break;
-       case Selection::Set:
-               selection->set (all_equivalent_regions);
+
+       case RESPONSE_REJECT:
+               /* keep the playlist */
+               return 1;
                break;
-       case Selection::Extend:
-               selection->add (all_equivalent_regions);
+
+       default:
+               break;
+       }
+
+       return -1;
+}
+
+bool
+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)) {
+                       return true;
+               }
+       }
+
+       return false;
+}
+
+void
+Editor::prepare_for_cleanup ()
+{
+       cut_buffer->clear_regions ();
+       cut_buffer->clear_playlists ();
+
+       selection->clear_regions ();
+       selection->clear_playlists ();
+
+       no_region_list_redisplay = true;
+}
+
+void
+Editor::finish_cleanup ()
+{
+       no_region_list_redisplay = false;
+       redisplay_regions ();
+}
+
+Location*
+Editor::transport_loop_location()
+{
+       if (session) {
+               return session->locations()->auto_loop_location();
+       } else {
+               return 0;
+       }
+}
+
+Location*
+Editor::transport_punch_location()
+{
+       if (session) {
+               return session->locations()->auto_punch_location();
+       } else {
+               return 0;
+       }
+}
+
+bool
+Editor::control_layout_scroll (GdkEventScroll* ev)
+{
+       switch (ev->direction) {
+       case GDK_SCROLL_UP:
+               scroll_tracks_up_line ();
+               return true;
+               break;
+
+       case GDK_SCROLL_DOWN:
+               scroll_tracks_down_line ();
+               return true;
+               
+       default:
+               /* no left/right handling yet */
                break;
        }
 
-       commit_reversible_command () ;
+       return false;
 }
 
-bool
-Editor::set_selected_regionview_from_map_event (GdkEventAny* ev, StreamView* sv, Region* r)
+
+/** A new snapshot has been selected.
+ */
+void
+Editor::snapshot_display_selection_changed ()
 {
-       RegionView* rv;
-       Region* ar;
+       if (snapshot_display.get_selection()->count_selected_rows() > 0) {
 
-       if ((ar = dynamic_cast<Region*> (r)) == 0) {
-               return TRUE;
-       }
+               TreeModel::iterator i = snapshot_display.get_selection()->get_selected();
+               
+               Glib::ustring snap_name = (*i)[snapshot_display_columns.real_name];
 
-       if ((rv = sv->find_view (*ar)) == 0) {
-               return TRUE;
+               if (snap_name.length() == 0) {
+                       return;
+               }
+               
+               if (session->snap_name() == snap_name) {
+                       return;
+               }
+               
+               ARDOUR_UI::instance()->load_session(session->path(), string (snap_name));
        }
+}
 
-       /* don't reset the selection if its something other than 
-          a single other region.
-       */
-
-       if (selection->regions.size() > 1) {
-               return TRUE;
+bool
+Editor::snapshot_display_button_press (GdkEventButton* ev)
+{
+       if (ev->button == 3) {
+               /* Right-click on the snapshot list. Work out which snapshot it
+                  was over. */
+               Gtk::TreeModel::Path path;
+               Gtk::TreeViewColumn* col;
+               int cx;
+               int cy;
+               snapshot_display.get_path_at_pos ((int) ev->x, (int) ev->y, path, col, cx, cy);
+               Gtk::TreeModel::iterator iter = snapshot_display_model->get_iter (path);
+               if (iter) {
+                       Gtk::TreeModel::Row row = *iter;
+                       popup_snapshot_context_menu (ev->button, ev->time, row[snapshot_display_columns.real_name]);
+               }
+               return true;
        }
-       
-       begin_reversible_command (_("set selected regions"));
-       
-       selection->set (rv);
-
-       commit_reversible_command () ;
 
-       return TRUE;
+       return false;
 }
 
-void
-Editor::set_edit_group_solo (Route& route, bool yn)
-{
-       RouteGroup *edit_group;
 
-       if ((edit_group = route.edit_group()) != 0) {
-               edit_group->apply (&Route::set_solo, yn, this);
-       } else {
-               route.set_solo (yn, this);
-       }
-}
+/** Pop up the snapshot display context menu.
+ * @param button Button used to open the menu.
+ * @param time Menu open time.
+ * @snapshot_name Name of the snapshot that the menu click was over.
+ */
 
 void
-Editor::set_edit_group_mute (Route& route, bool yn)
+Editor::popup_snapshot_context_menu (int button, int32_t time, Glib::ustring snapshot_name)
 {
-       RouteGroup *edit_group = 0;
+       using namespace Menu_Helpers;
 
-       if ((edit_group == route.edit_group()) != 0) {
-               edit_group->apply (&Route::set_mute, yn, this);
-       } else {
-               route.set_mute (yn, this);
-       }
-}
-               
-void
-Editor::set_edit_menu (Menu& menu)
-{
-       edit_menu = &menu;
-       edit_menu->signal_map_event().connect (mem_fun(*this, &Editor::edit_menu_map_handler));
-}
+       MenuList& items (snapshot_context_menu.items());
+       items.clear ();
 
-bool
-Editor::edit_menu_map_handler (GdkEventAny* ev)
-{
-       using namespace Menu_Helpers;
-       MenuList& edit_items = edit_menu->items();
-       string label;
+       const bool modification_allowed = (session->snap_name() != snapshot_name && session->name() != snapshot_name);
 
-       /* Nuke all the old items */
-               
-       edit_items.clear ();
+       add_item_with_sensitivity (items, MenuElem (_("Remove"), bind (mem_fun (*this, &Editor::remove_snapshot), snapshot_name)), modification_allowed);
 
-       if (session == 0) {
-               return false;
-       }
+       add_item_with_sensitivity (items, MenuElem (_("Rename"), bind (mem_fun (*this, &Editor::rename_snapshot), snapshot_name)), modification_allowed);
 
-       if (session->undo_depth() == 0) {
-               label = _("Undo");
-       } else {
-               label = string_compose(_("Undo (%1)"), session->next_undo());
-       }
-       
-       edit_items.push_back (MenuElem (label, bind (mem_fun(*this, &Editor::undo), 1U)));
-       
-       if (session->undo_depth() == 0) {
-               edit_items.back().set_sensitive (false);
-       }
-       
-       if (session->redo_depth() == 0) {
-               label = _("Redo");
-       } else {
-               label = string_compose(_("Redo (%1)"), session->next_redo());
-       }
-       
-       edit_items.push_back (MenuElem (label, bind (mem_fun(*this, &Editor::redo), 1U)));
-       if (session->redo_depth() == 0) {
-               edit_items.back().set_sensitive (false);
-       }
+       snapshot_context_menu.popup (button, time);
+}
 
-       vector<MenuItem*> mitems;
+void
+Editor::rename_snapshot (Glib::ustring old_name)
+{
+       ArdourPrompter prompter(true);
 
-       edit_items.push_back (SeparatorElem());
-       edit_items.push_back (MenuElem (_("Cut"), mem_fun(*this, &Editor::cut)));
-       mitems.push_back (&edit_items.back());
-       edit_items.push_back (MenuElem (_("Copy"), mem_fun(*this, &Editor::copy)));
-       mitems.push_back (&edit_items.back());
-       edit_items.push_back (MenuElem (_("Paste"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
-       mitems.push_back (&edit_items.back());
-       edit_items.push_back (SeparatorElem());
-       edit_items.push_back (MenuElem (_("Align"), bind (mem_fun(*this, &Editor::align), ARDOUR::SyncPoint)));
-       mitems.push_back (&edit_items.back());
-       edit_items.push_back (MenuElem (_("Align Relative"), bind (mem_fun(*this, &Editor::align_relative), ARDOUR::SyncPoint)));
-       mitems.push_back (&edit_items.back());
-       edit_items.push_back (SeparatorElem());
+       string new_name;
 
-       if (selection->empty()) {
-               for (vector<MenuItem*>::iterator i = mitems.begin(); i != mitems.end(); ++i) {
-                       (*i)->set_sensitive (false);
+       prompter.set_name ("Prompter");
+       prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
+       prompter.set_prompt (_("New name of snapshot"));
+       prompter.set_initial_text (old_name);
+       
+       if (prompter.run() == RESPONSE_ACCEPT) {
+               prompter.get_result (new_name);
+               if (new_name.length()) {
+                       session->rename_state (old_name, new_name);
+                       redisplay_snapshots ();
                }
        }
+}
 
-       Menu* import_menu = manage (new Menu());
-       import_menu->set_name ("ArdourContextMenu");
-       MenuList& import_items = import_menu->items();
-       
-       import_items.push_back (MenuElem (_("... as new track"), bind (mem_fun(*this, &Editor::add_external_audio_action), ImportAsTrack)));
-       import_items.push_back (MenuElem (_("... as new region"), bind (mem_fun(*this, &Editor::add_external_audio_action), ImportAsRegion)));
 
-       edit_items.push_back (MenuElem (_("Import audio (copy)"), *import_menu));
-       edit_items.push_back (SeparatorElem());
+void
+Editor::remove_snapshot (Glib::ustring name)
+{
+       vector<string> choices;
 
-       edit_items.push_back (MenuElem (_("Remove last capture"), mem_fun(*this, &Editor::remove_last_capture)));
+       std::string prompt  = string_compose (_("Do you really want to remove snapshot \"%1\" ?\n(cannot be undone)"), name);
 
-       if (!session->have_captured()) {
-               edit_items.back().set_sensitive (false);
-       }
+       choices.push_back (_("No, do nothing."));
+       choices.push_back (_("Yes, remove it."));
 
-       return false;
+       Gtkmm2ext::Choice prompter (prompt, choices);
+
+       if (prompter.run () == 1) {
+               session->remove_state (name);
+               redisplay_snapshots ();
+       }
 }
 
 void
-Editor::duplicate_dialog (bool dup_region)
+Editor::redisplay_snapshots ()
 {
-       if (dup_region) {
-               if (clicked_regionview == 0) {
-                       return;
-               }
-       } else {
-               if (selection->time.length() == 0) {
-                       return;
-               }
+       if (session == 0) {
+               return;
        }
 
-       ArdourDialog win ("duplicate dialog");
-       Entry  entry;
-       Label  label (_("Duplicate how many times?"));
+       vector<sys::path> state_file_paths;
 
-       win.get_vbox()->pack_start (label);
-       win.add_action_widget (entry, RESPONSE_ACCEPT);
-       win.add_button (Stock::OK, RESPONSE_ACCEPT);
-       win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
+       get_state_files_in_directory (session->session_directory().root_path(),
+                       state_file_paths);
 
-       win.set_position (WIN_POS_MOUSE);
+       if (state_file_paths.empty()) return;
 
-       entry.set_text ("1");
-       set_size_request_to_display_given_text (entry, X_("12345678"), 20, 15);
-       entry.select_region (0, entry.get_text_length());
-       entry.grab_focus ();
+       vector<string> state_file_names(get_file_names_no_extension(state_file_paths));
 
+       snapshot_display_model->clear ();
 
-       switch (win.run ()) {
-       case RESPONSE_ACCEPT:
-               break;
-       default:
-               return;
-       }
-
-       string text = entry.get_text();
-       float times;
+       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
+                  name of the snapshot.
+               */
+               
+               string display_name;
+               display_name = statename;
 
-       if (sscanf (text.c_str(), "%f", &times) == 1) {
-               if (dup_region) {
-                       RegionSelection regions;
-                       regions.add (clicked_regionview);
-                       duplicate_some_regions (regions, times);
-               } else {
-                       duplicate_selection (times);
-               }
+               if (statename == session->snap_name()) {
+                       snapshot_display.get_selection()->select(row);
+               } 
+               
+               row[snapshot_display_columns.visible_name] = display_name;
+               row[snapshot_display_columns.real_name] = statename;
        }
 }
 
 void
-Editor::show_verbose_canvas_cursor ()
-{
-        verbose_canvas_cursor->raise_to_top();
-        verbose_canvas_cursor->show();
-       verbose_cursor_visible = true;
-}
-
-void
-Editor::hide_verbose_canvas_cursor ()
+Editor::session_state_saved (string snap_name)
 {
-        verbose_canvas_cursor->hide();
-       verbose_cursor_visible = false;
+       ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::session_state_saved), snap_name));
+       redisplay_snapshots ();
 }
 
 void
-Editor::set_verbose_canvas_cursor (const string & txt, double x, double y)
+Editor::maximise_editing_space ()
 {
-       /* 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;
-}
+       mouse_mode_tearoff->set_visible (false);
+       tools_tearoff->set_visible (false);
 
-void
-Editor::set_verbose_canvas_cursor_text (const string & txt)
-{
-       verbose_canvas_cursor->property_text() = txt.c_str();
-}
+       pre_maximal_pane_position = edit_pane.get_position();
+       pre_maximal_editor_width = this->get_width();
 
-void
-Editor::edit_mode_selection_done ()
-{
-       if (session == 0) {
-               return;
+       if(post_maximal_pane_position == 0) {
+               post_maximal_pane_position = edit_pane.get_width();
        }
 
-       string choice = edit_mode_selector.get_active_text();
-       EditMode mode = Slide;
+       fullscreen();
 
-       if (choice == _("Splice Edit")) {
-               mode = Splice;
-       } else if (choice == _("Slide Edit")) {
-               mode = Slide;
+       if(post_maximal_editor_width) {
+               edit_pane.set_position (post_maximal_pane_position - 
+                       abs(post_maximal_editor_width - pre_maximal_editor_width));
+       } else {
+               edit_pane.set_position (post_maximal_pane_position);
        }
-
-       session->set_edit_mode (mode);
-}      
+}
 
 void
-Editor::snap_type_selection_done ()
+Editor::restore_editing_space ()
 {
-       if (session == 0) {
-               return;
+       // user changed width of pane during fullscreen
+
+       if(post_maximal_pane_position != edit_pane.get_position()) {
+               post_maximal_pane_position = edit_pane.get_position();
        }
 
-       string choice = snap_type_selector.get_active_text();
-       SnapType snaptype = SnapToFrame;
+       unfullscreen();
 
-       if (choice == _("Beats/3")) {
-               snaptype = SnapToAThirdBeat;
-       } else if (choice == _("Beats/4")) {
-               snaptype = SnapToAQuarterBeat;
-       } else if (choice == _("Beats/8")) {
-               snaptype = SnapToAEighthBeat;
-       } else if (choice == _("Beats/16")) {
-               snaptype = SnapToASixteenthBeat;
-       } else if (choice == _("Beats/32")) {
-               snaptype = SnapToAThirtysecondBeat;
-       } else if (choice == _("Beats")) {
-               snaptype = SnapToBeat;
-       } else if (choice == _("Bars")) {
-               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")) {
-               snaptype = SnapToRegionEnd;
-       } else if (choice == _("Region bounds")) {
-               snaptype = SnapToRegionBoundary;
-       } else if (choice == _("Region syncs")) {
-               snaptype = SnapToRegionSync;
-       } else if (choice == _("CD Frames")) {
-               snaptype = SnapToCDFrame;
-       } else if (choice == _("SMPTE Frames")) {
-               snaptype = SnapToSMPTEFrame;
-       } else if (choice == _("SMPTE Seconds")) {
-               snaptype = SnapToSMPTESeconds;
-       } else if (choice == _("SMPTE Minutes")) {
-               snaptype = SnapToSMPTEMinutes;
-       } else if (choice == _("Seconds")) {
-               snaptype = SnapToSeconds;
-       } else if (choice == _("Minutes")) {
-               snaptype = SnapToMinutes;
-       } else if (choice == _("None")) {
-               snaptype = SnapToFrame;
-       }
+       mouse_mode_tearoff->set_visible (true);
+       tools_tearoff->set_visible (true);
+       post_maximal_editor_width = this->get_width();
 
-       set_snap_to (snaptype);
-}      
+       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 (TimeAxisView* v)
+{
+       begin_reversible_command (_("new playlists"));
+       vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
+       session->get_playlists(playlists);
+       mapover_tracks ( bind(mem_fun (*this, &Editor::mapped_use_new_playlist), playlists), 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::snap_mode_selection_done ()
+Editor::copy_playlists (TimeAxisView* v)
 {
-       if(session == 0) {
-               return;
-       }
+       begin_reversible_command (_("copy playlists"));
+       vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
+       session->get_playlists(playlists);
+       mapover_tracks ( bind(mem_fun (*this, &Editor::mapped_use_copy_playlist), playlists), v );
+       commit_reversible_command ();
+}
 
-       string choice = snap_mode_selector.get_active_text();
-       SnapMode mode = SnapNormal;
+/**
+ *  Clear the current playlist for a given track and also any others that belong
+ *  to the same active edit group.
+ *  @param v Track.
+ */
 
-       if (choice == _("Normal Snap")) {
-               mode = SnapNormal;
-       } else if (choice == _("Magnetic Snap")) {
-               mode = SnapMagnetic;
-       }
+void 
+Editor::clear_playlists (TimeAxisView* v)
+{
+       begin_reversible_command (_("clear playlists"));
+       vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
+       session->get_playlists(playlists);
+       mapover_tracks ( mem_fun (*this, &Editor::mapped_clear_playlist), v );
+       commit_reversible_command ();
+}
 
-       set_snap_mode (mode);
+void 
+Editor::mapped_use_new_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
+{
+       atv.use_new_playlist (sz > 1 ? false : true, playlists);
 }
 
 void
-Editor::zoom_focus_selection_done ()
+Editor::mapped_use_copy_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
 {
-       if (session == 0) {
-               return;
-       }
+       atv.use_copy_playlist (sz > 1 ? false : true, playlists);
+}
 
-       string choice = zoom_focus_selector.get_active_text();
-       ZoomFocus focus_type = ZoomFocusLeft;
+void 
+Editor::mapped_clear_playlist (RouteTimeAxisView& atv, uint32_t sz)
+{
+       atv.clear_playlist ();
+}
 
-       if (choice == _("Focus Left")) {
-               focus_type = ZoomFocusLeft;
-       } else if (choice == _("Focus Right")) {
-               focus_type = ZoomFocusRight;
-       } else if (choice == _("Focus Center")) {
-               focus_type = ZoomFocusCenter;
-       } else if (choice == _("Focus Playhead")) {
-               focus_type = ZoomFocusPlayhead;
-       } else if (choice == _("Focus Edit Cursor")) {
-               focus_type = ZoomFocusEdit;
-       } 
+bool
+Editor::on_key_press_event (GdkEventKey* ev)
+{
+       return key_press_focus_accelerator_handler (*this, ev);
+}
 
-       set_zoom_focus (focus_type);
-}      
+bool
+Editor::on_key_release_event (GdkEventKey* ev)
+{
+       return Gtk::Window::on_key_release_event (ev);
+       // return key_press_focus_accelerator_handler (*this, ev);
+}
 
-gint
-Editor::edit_controls_button_release (GdkEventButton* ev)
+void
+Editor::reset_x_origin (nframes64_t frame)
 {
-       if (Keyboard::is_context_menu_event (ev)) {
-               ARDOUR_UI::instance()->add_route ();
-       }
-       return TRUE;
+       //cerr << "resetting x origin" << endl;
+       queue_visual_change (frame);
 }
 
 void
-Editor::track_selection_changed ()
+Editor::reset_zoom (double fpu)
 {
-       switch (selection->tracks.size()){
-       case 0:
-               break;
-       default:
-               set_selected_mixer_strip (*(selection->tracks.front()));
-               break;
-       }
+       queue_visual_change (fpu);
+}
 
-       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-               (*i)->set_selected (false);
-               if (mouse_mode == MouseRange) {
-                       (*i)->hide_selection ();
-               }
-       }
+void
+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);
 
-       for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
-               (*i)->set_selected (true);
-               if (mouse_mode == MouseRange) {
-                       (*i)->show_selection (selection->time);
-               }
+       if (!no_save_visual) {
+               undo_visual_stack.push_back (current_visual_state(false));
        }
 }
 
-void
-Editor::time_selection_changed ()
+Editor::VisualState*
+Editor::current_visual_state (bool with_tracks)
 {
-       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-               (*i)->hide_selection ();
-       }
+       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 (selection->tracks.empty()) {
+       if (with_tracks) {
                for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-                       (*i)->show_selection (selection->time);
-               }
-       } else {
-               for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
-                       (*i)->show_selection (selection->time);
+                       vs->track_states.push_back (TAVState ((*i), &(*i)->get_state()));
                }
        }
-
-       if (selection->time.empty()) {
-               ActionManager::set_sensitive (ActionManager::time_selection_sensitive_actions, false);
-       } else {
-               ActionManager::set_sensitive (ActionManager::time_selection_sensitive_actions, true);
-       }
+       
+       return vs;
 }
 
 void
-Editor::region_selection_changed ()
+Editor::undo_visual_state ()
 {
-       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-               (*i)->set_selected_regionviews (selection->regions);
+       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::point_selection_changed ()
+Editor::redo_visual_state ()
 {
-       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-               (*i)->set_selected_points (selection->points);
+       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);
 }
 
-gint
-Editor::mouse_select_button_release (GdkEventButton* ev)
+void
+Editor::swap_visual_state ()
 {
-       /* this handles just right-clicks */
-
-       if (ev->button != 3) {
-               return FALSE;
+       if (undo_visual_stack.empty()) {
+               redo_visual_state ();
+       } else {
+               undo_visual_state ();
        }
-
-       return TRUE;
 }
 
-Editor::TrackViewList *
-Editor::get_valid_views (TimeAxisView* track, RouteGroup* group)
+void
+Editor::use_visual_state (VisualState& vs)
 {
-       TrackViewList *v;
-       TrackViewList::iterator i;
+       no_save_visual = true;
+       no_route_list_redisplay = true;
 
-       v = new TrackViewList;
+       vertical_adjustment.set_value (vs.y_position);
 
-       if (track == 0 && group == 0) {
+       set_zoom_focus (vs.zoom_focus);
+       reposition_and_zoom (vs.leftmost_frame, vs.frames_per_unit);
+       zoomed_to_region = vs.zoomed_to_region;
+       
+       for (list<TAVState>::iterator i = vs.track_states.begin(); i != vs.track_states.end(); ++i) {
+               TrackViewList::iterator t;
 
-               /* all views */
+               /* check if the track still exists - it could have been deleted */
 
-               for (i = track_views.begin(); i != track_views.end (); ++i) {
-                       v->push_back (*i);
+               if ((t = find (track_views.begin(), track_views.end(), i->first)) != track_views.end()) {
+                       (*t)->set_state (*(i->second));
                }
+       }
 
-       } else if (track != 0 && group == 0 || (track != 0 && group != 0 && !group->is_active())) {
-               
-               /* just the view for this track
-                */
 
-               v->push_back (track);
+       if (!vs.track_states.empty()) {
+               update_route_visibility ();
+       } 
 
-       } else {
-               
-               /* views for all tracks in the edit group */
-               
-               for (i  = track_views.begin(); i != track_views.end (); ++i) {
+       no_route_list_redisplay = false;
+       redisplay_route_list ();
 
-                       if (group == 0 || (*i)->edit_group() == group) {
-                               v->push_back (*i);
-                       }
-               }
-       }
-       
-       return v;
+       no_save_visual = false;
 }
 
 void
-Editor::set_zoom_focus (ZoomFocus f)
+Editor::set_frames_per_unit (double fpu)
 {
-       if (zoom_focus != f) {
-               zoom_focus = f;
-               vector<string> txt = internationalize (zoom_focus_strings);
-               zoom_focus_selector.set_active_text (txt[(int)f]);
-               ZoomFocusChanged (); /* EMIT_SIGNAL */
+       /* 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.
+       */
 
-               instant_save ();
+       if (fpu == frames_per_unit) {
+               return;
+       }
+
+       if (fpu < 2.0) {
+               fpu = 2.0;
+       }
+
+       
+       /* don't allow zooms that fit more than the maximum number
+          of frames into an 800 pixel wide space.
+       */
+
+       if (max_frames / fpu < 800.0) {
+               return;
        }
+       
+       if (tempo_lines)
+               tempo_lines->tempo_map_changed();
+
+       frames_per_unit = fpu;
+       post_zoom ();
 }
 
 void
-Editor::ensure_float (Window& win)
+Editor::post_zoom ()
 {
-       win.set_transient_for (*this);
-}
+       nframes64_t cef = 0;
 
-void 
-Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
-{
-       /* recover or initialize pane positions. do this here rather than earlier because
-          we don't want the positions to change the child allocations, which they seem to do.
-        */
+       // convert fpu to frame count
 
-       int pos;
-       XMLProperty* prop;
-       char buf[32];
-       XMLNode* node = ARDOUR_UI::instance()->editor_settings();
-       int width, height;
-       static int32_t done;
-       XMLNode* geometry;
+       nframes64_t frames = (nframes64_t) floor (frames_per_unit * canvas_width);
 
-       if ((geometry = find_named_node (*node, "geometry")) == 0) {
-               width = default_width;
-               height = default_height;
-       } else {
-               width = atoi(geometry->property("x_size")->value());
-               height = atoi(geometry->property("y_size")->value());
+       if (frames_per_unit != zoom_range_clock.current_duration()) {
+               zoom_range_clock.set (frames);
        }
 
-       if (which == static_cast<Paned*> (&edit_pane)) {
-
-               if (done) {
-                       return;
-               }
-
-               if (!geometry || (prop = geometry->property ("edit_pane_pos")) == 0) {
-                       /* initial allocation is 90% to canvas, 10% to notebook */
-                       pos = (int) floor (alloc.get_width() * 0.90f);
-                       snprintf (buf, sizeof(buf), "%d", pos);
+       if (mouse_mode == MouseRange && selection->time.start () != selection->time.end_frame ()) {
+               if (!selection->tracks.empty()) {
+                       for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
+                               (*i)->reshow_selection (selection->time);
+                       }
                } 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;
+                       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
+                               (*i)->reshow_selection (selection->time);
+                       }
                }
        }
-}
 
-void
-Editor::detach_tearoff (Box* b, Window* w)
-{
-       if (tools_tearoff->torn_off() && 
-           mouse_mode_tearoff->torn_off()) {
-               top_hbox.remove (toolbar_frame);
-       }
-}
 
-void
-Editor::reattach_tearoff (Box* b, Window* w, int32_t n)
-{
-       if (toolbar_frame.get_parent() == 0) {
-               top_hbox.pack_end (toolbar_frame);
-       }
-}
+       ZoomChanged (); /* EMIT_SIGNAL */
 
-void
-Editor::set_show_measures (bool yn)
-{
-       if (_show_measures != yn) {
-               hide_measures ();
+       reset_hscrollbar_stepping ();
 
-               if ((_show_measures = yn) == true) {
-                       draw_measures ();
-               }
-               DisplayControlChanged (ShowMeasures);
-               instant_save ();
+       if (session) {
+               cef = session->current_end_frame() + (current_page_frames() / 10);// Add a little extra so we can see the end marker
        }
-}
+       horizontal_adjustment.set_upper (cef / frames_per_unit);
 
-void
-Editor::toggle_follow_playhead ()
-{
-       RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
-       if (act) {
-               RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
-               set_follow_playhead (tact->get_active());
-       }
-}
+       //reset_scrolling_region ();
 
-void
-Editor::set_follow_playhead (bool yn)
-{
-       if (_follow_playhead != yn) {
-               if ((_follow_playhead = yn) == true) {
-                       /* catch up */
-                       update_current_screen ();
-               }
-               DisplayControlChanged (FollowPlayhead);
-               instant_save ();
+       if (playhead_cursor) {
+               playhead_cursor->set_position (playhead_cursor->current_frame);
        }
-}
 
-void
-Editor::toggle_xfade_active (Crossfade* xfade)
-{
-       xfade->set_active (!xfade->active());
+       instant_save ();
 }
 
 void
-Editor::toggle_xfade_length (Crossfade* xfade)
+Editor::queue_visual_change (nframes64_t where)
 {
-       xfade->set_follow_overlap (!xfade->following_overlap());
+//     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);
+       }
 }
 
 void
-Editor::edit_xfade (Crossfade* xfade)
+Editor::queue_visual_change (double fpu)
 {
-       CrossfadeEditor cew (*session, *xfade, xfade->fade_in().get_min_y(), 1.0);
-               
-       ensure_float (cew);
-       
-       switch (cew.run ()) {
-       case RESPONSE_ACCEPT:
-               break;
-       default:
-               return;
+       pending_visual_change.pending = VisualChange::Type (pending_visual_change.pending | VisualChange::ZoomLevel);
+       pending_visual_change.frames_per_unit = fpu;
+
+       if (pending_visual_change.idle_handler_id < 0) {
+               pending_visual_change.idle_handler_id = g_idle_add ( _idle_visual_changer, this);
        }
        
-       cew.apply ();
-       xfade->StateChanged (Change (~0));
 }
 
-PlaylistSelector&
-Editor::playlist_selector () const
+int
+Editor::_idle_visual_changer (void* arg)
 {
-       return *_playlist_selector;
+       return static_cast<Editor*>(arg)->idle_visual_changer ();
 }
 
-jack_nframes_t
-Editor::get_nudge_distance (jack_nframes_t pos, jack_nframes_t& next)
+int
+Editor::idle_visual_changer ()
 {
-       jack_nframes_t ret;
+       VisualChange::Type p = pending_visual_change.pending;
+       pending_visual_change.pending = (VisualChange::Type) 0;
 
-       ret = nudge_clock.current_duration (pos);
-       next = ret + 1; /* XXXX fix me */
+#ifdef FIX_THIS_FOR_V3
+       double last_time_origin = horizontal_adjustment.get_value();
+#endif
 
-       return ret;
+       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 + current_page_frames());
+               compute_bbt_ruler_scale (pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
+               update_tempo_based_rulers ();
+       }
+       if (p & VisualChange::TimeOrigin) {
+               horizontal_adjustment.set_value (pending_visual_change.time_origin / frames_per_unit);
+       }
+
+       nframes64_t csf=0, cef=0;
+       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();
+       }
+       
+       /* if we seek beyond the current end of the canvas, move the end */
+
+#ifdef FIX_THIS_FOR_V3
+       if (last_time_origin == horizontal_adjustment.get_value() ) {
+               /* changed signal not emitted */
+               update_fixed_rulers ();
+               redisplay_tempo (true);
+       }
+#endif
+       
+       if (current_time_origin != pending_visual_change.time_origin) {
+               cef += current_page_frames() / 10; // Add a little extra so we can see the end marker
+               horizontal_adjustment.set_upper (cef / 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 */
 }
 
+struct EditorOrderTimeAxisSorter {
+    bool operator() (const TimeAxisView* a, const TimeAxisView* b) const {
+           return a->order () < b->order ();
+    }
+};
+       
 void
-Editor::end_location_changed (Location* location)
+Editor::sort_track_selection (TrackSelection* sel)
 {
-       ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::end_location_changed), location));
-       reset_scrolling_region ();
+       EditorOrderTimeAxisSorter cmp;
+
+       if (sel) {
+               sel->sort (cmp);
+       } else {
+               selection->tracks.sort (cmp);
+       }
 }
 
-int
-Editor::playlist_deletion_dialog (Playlist* pl)
+nframes64_t
+Editor::get_preferred_edit_position (bool ignore_playhead)
 {
-       ArdourDialog dialog ("playlist deletion dialog");
-       Label  label (string_compose (_("Playlist %1 is currently unused.\n"
-                                "If left alone, no audio files used by it will be cleaned.\n"
-                                "If deleted, audio files used by it alone by will cleaned."),
-                              pl->name()));
+       bool ignored;
+       nframes64_t where = 0;
+       EditPoint ep = _edit_point;
 
-       dialog.set_position (WIN_POS_CENTER);
-       dialog.get_vbox()->pack_start (label);
-
-       dialog.add_button (_("Delete playlist"), RESPONSE_ACCEPT);
-       dialog.add_button (_("Keep playlist"), RESPONSE_CANCEL);
-       dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
+       if (entered_marker) {
+               return entered_marker->position();
+       }
 
-       switch (dialog.run ()) {
-       case RESPONSE_ACCEPT:
-               /* delete the playlist */
-               return 0;
-               break;
+       if (ignore_playhead && ep == EditAtPlayhead) {
+               ep = EditAtSelectedMarker;
+       }
 
-       case RESPONSE_REJECT:
-               /* keep the playlist */
-               return 1;
+       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 -1;
+       return where;
 }
 
-bool
-Editor::audio_region_selection_covers (jack_nframes_t where)
+void
+Editor::set_loop_range (nframes64_t start, nframes64_t end, string cmd)
 {
-       for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
-               if ((*a)->region().covers (where)) {
-                       return true;
-               }
-       }
+       if (!session) return;
 
-       return false;
+       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::prepare_for_cleanup ()
+Editor::set_punch_range (nframes64_t start, nframes64_t end, string cmd)
 {
-       cut_buffer->clear_regions ();
-       cut_buffer->clear_playlists ();
+       if (!session) return;
 
-       selection->clear_regions ();
-       selection->clear_playlists ();
-}
+       begin_reversible_command (cmd);
+       
+       Location* tpl;
 
-Location*
-Editor::transport_loop_location()
-{
-       if (session) {
-               return session->locations()->auto_loop_location();
-       } else {
-               return 0;
+       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 ();
 }
 
-Location*
-Editor::transport_punch_location()
+void
+Editor::get_regions_at (RegionSelection& rs, nframes64_t where, const TrackSelection& ts) const
 {
-       if (session) {
-               return session->locations()->auto_punch_location();
+       const TrackSelection* tracks;
+
+       if (ts.empty()) {
+               tracks = &track_views;
        } else {
-               return 0;
+               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;
+                       }
+               }
        }
 }
 
-bool
-Editor::control_layout_scroll (GdkEventScroll* ev)
+void
+Editor::get_regions_after (RegionSelection& rs, nframes64_t where, const TrackSelection& ts) const
 {
-       switch (ev->direction) {
-       case GDK_SCROLL_UP:
-               scroll_tracks_up_line ();
-               return true;
-               break;
+       const TrackSelection* tracks;
 
-       case GDK_SCROLL_DOWN:
-               scroll_tracks_down_line ();
-               return true;
-               
-       default:
-               /* no left/right handling yet */
-               break;
+       if (ts.empty()) {
+               tracks = &track_views;
+       } else {
+               tracks = &ts;
        }
 
-       return false;
+       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::snapshot_display_selection_changed ()
+Editor::get_regions_for_action (RegionSelection& rs, bool allow_entered)
 {
-       if (snapshot_display.get_selection()->count_selected_rows() > 0) {
+       if (selection->regions.empty()) {
 
-               TreeModel::iterator i = snapshot_display.get_selection()->get_selected();
-               
-               Glib::ustring snap_name = (*i)[snapshot_display_columns.real_name];
+               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);
+                       }
 
-               if (snap_name.length() == 0) {
                        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);
+                       }
                }
+
+       } else {
                
-               if (session->snap_name() == snap_name) {
-                       return;
+               /* 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);
                }
-               
-               ARDOUR_UI::instance()->load_session(session->path(), string (snap_name));
-       }
-}
 
-bool
-Editor::snapshot_display_button_press (GdkEventButton* ev)
-{
-        return false;
+       }
 }
 
 void
-Editor::redisplay_snapshots ()
+Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions)
 {
-       if (session == 0) {
-               return;
-       }
-
-       vector<string*>* states;
 
-       if ((states = session->possible_states()) == 0) {
-               return;
+       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);
+                               }
+                       }
+                       
+               }
        }
+}      
 
-       snapshot_display_model->clear ();
-
-       for (vector<string*>::iterator i = states->begin(); i != states->end(); ++i) {
-               string statename = *(*i);
-               TreeModel::Row row = *(snapshot_display_model->append());
-               row[snapshot_display_columns.visible_name] = statename;
-               row[snapshot_display_columns.real_name] = statename;
+void
+Editor::show_rhythm_ferret ()
+{
+       if (rhythm_ferret == 0) {
+               rhythm_ferret = new RhythmFerret(*this);
        }
 
-       delete states;
+       rhythm_ferret->set_session (session);
+       rhythm_ferret->show ();
+       rhythm_ferret->present ();
 }
 
 void
-Editor::session_state_saved (string snap_name)
+Editor::show_bundle_manager ()
 {
-       ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::session_state_saved), snap_name));
-       redisplay_snapshots ();
+       if (_bundle_manager == 0) {
+               _bundle_manager = new BundleManager (*session);
+       }
+
+       _bundle_manager->show ();
 }
 
 void
-Editor::maximise_editing_space ()
+Editor::show_global_port_matrix (ARDOUR::DataType t)
 {
-       mouse_mode_tearoff->set_visible (false);
-       tools_tearoff->set_visible (false);
-
-       pre_maximal_pane_position = edit_pane.get_position();
-       edit_pane.set_position (edit_pane.get_width());
+       if (_global_port_matrix[t] == 0) {
+               _global_port_matrix[t] = new GlobalPortMatrixWindow (*session, t);
+       }
 
-       fullscreen();
+       _global_port_matrix[t]->show ();
 }
 
 void
-Editor::restore_editing_space ()
+Editor::first_idle ()
 {
-       mouse_mode_tearoff->set_visible (true);
-       tools_tearoff->set_visible (true);
-       edit_pane.set_position (pre_maximal_pane_position);
+       MessageDialog* dialog = 0;
 
-       unfullscreen();
-}
+       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 ();
+       }
 
-void 
-Editor::new_playlists ()
-{
-       begin_reversible_command (_("new playlists"));
-       mapover_audio_tracks (mem_fun (*this, &Editor::mapped_use_new_playlist));
-       commit_reversible_command ();
+       for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
+               (*t)->first_idle();
+       }
+
+       // first idle adds route children (automation tracks), so we need to redisplay here
+       redisplay_route_list();
+       
+       delete dialog;
+
+       _have_idled = true;
 }
 
 void
-Editor::copy_playlists ()
+Editor::start_resize_line_ops ()
 {
-       begin_reversible_command (_("copy playlists"));
-       mapover_audio_tracks (mem_fun (*this, &Editor::mapped_use_copy_playlist));
-       commit_reversible_command ();
+#if 0
+       old_resize_line_y = -1;
+       resize_line_y = -1;
+       need_resize_line = true;
+#endif 
 }
 
-void 
-Editor::clear_playlists ()
+void
+Editor::end_resize_line_ops ()
 {
-       begin_reversible_command (_("clear playlists"));
-       mapover_audio_tracks (mem_fun (*this, &Editor::mapped_clear_playlist));
-       commit_reversible_command ();
-}
+#if 0
+       need_resize_line = false;
 
-void 
-Editor::mapped_use_new_playlist (AudioTimeAxisView& atv, uint32_t sz)
-{
-       atv.use_new_playlist (sz > 1 ? false : true);
+       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::mapped_use_copy_playlist (AudioTimeAxisView& atv, uint32_t sz)
+Editor::queue_draw_resize_line (int at)
 {
-       atv.use_copy_playlist (sz > 1 ? false : true);
-}
+#if 0  
+       Glib::RefPtr<Gdk::Window> win = get_window();
 
-void 
-Editor::mapped_clear_playlist (AudioTimeAxisView& atv, uint32_t sz)
-{
-       atv.clear_playlist ();
+       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_key_press_event (GdkEventKey* ev)
+Editor::on_expose_event (GdkEventExpose* ev)
 {
-       return key_press_focus_accelerator_handler (*this, 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);
 
-void
-Editor::update_layering_model ()
-{
-       RefPtr<Action> act;
+#if 0
+       if (need_resize_line) {
+               
+               int xroot, yroot, discard;
+               int controls_width;
 
-       switch (session->get_layer_model()) {
-       case Session::LaterHigher:
-               act = ActionManager::get_action (X_("Editor"), X_("LayerLaterHigher"));
-               break;
-       case Session::MoveAddHigher:
-               act = ActionManager::get_action (X_("Editor"), X_("LayerMoveAddHigher"));
-               break;
-       case Session::AddHigher:
-               act = ActionManager::get_action (X_("Editor"), X_("LayerAddHigher"));
-               break;
-       }
+               /* 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.
+               */
 
-       if (act) {
-               RefPtr<RadioAction> ract = RefPtr<RadioAction>::cast_dynamic(act);
-               if (ract && !ract->get_active()) {
-                       ract->set_active (true);
+               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::update_crossfade_model ()
+Editor::add_to_idle_resize (TimeAxisView* view, uint32_t h)
 {
-       RefPtr<Action> act;
+       if (resize_idle_id < 0) {
+               resize_idle_id = g_idle_add (_idle_resizer, this);
+       } 
 
-       switch (session->get_xfade_model()) {
-       case FullCrossfade:
-               act = ActionManager::get_action (X_("Editor"), X_("CrossfadesFull"));
-               break;
-       case ShortCrossfade:
-               act = ActionManager::get_action (X_("Editor"), X_("CrossfadesShort"));
-               break;
-       }
+       resize_idle_target = h;
 
-       if (act) {
-               RefPtr<RadioAction> ract = RefPtr<RadioAction>::cast_dynamic(act);
-               if (ract && !ract->get_active()) {
-                       ract->set_active (true);
-               }
+       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();
+       flush_canvas ();
+       resize_idle_id = -1;
+       return false;
+}