RCU-ification of AudioEngine port list, and DiskStreams. not well tested, but basical...
[ardour.git] / gtk2_ardour / editor.cc
index d2058fde3cb32034efe7dabe44c5aa63775b36fa..2be8b2d73b5aec31371cf37bb548c944d36c5084 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2000 Paul Davis 
+    Copyright (C) 2000-2006 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
@@ -26,7 +26,9 @@
 
 #include <sigc++/bind.h>
 
+#include <pbd/convert.h>
 #include <pbd/error.h>
+#include <pbd/memento_command.h>
 
 #include <gtkmm/image.h>
 #include <gdkmm/color.h>
@@ -37,7 +39,7 @@
 #include <gtkmm2ext/utils.h>
 
 #include <ardour/audio_track.h>
-#include <ardour/diskstream.h>
+#include <ardour/audio_diskstream.h>
 #include <ardour/plugin_manager.h>
 #include <ardour/location.h>
 #include <ardour/audioplaylist.h>
 #include <ardour/tempo.h>
 #include <ardour/utils.h>
 
+#include <control_protocol/control_protocol.h>
+
 #include "ardour_ui.h"
 #include "editor.h"
 #include "grouped_buttons.h"
 #include "keyboard.h"
 #include "marker.h"
 #include "playlist_selector.h"
-#include "regionview.h"
+#include "audio_region_view.h"
 #include "rgb_macros.h"
 #include "selection.h"
-#include "streamview.h"
+#include "audio_streamview.h"
 #include "time_axis_view.h"
 #include "utils.h"
 #include "crossfade_view.h"
 #include "actions.h"
 #include "gui_thread.h"
 
+#ifdef FFT_ANALYSIS
+#include "analysis_window.h"
+#endif
+
 #include "i18n.h"
 
 /* <CMT Additions> */
 using namespace std;
 using namespace sigc;
 using namespace ARDOUR;
+using namespace PBD;
 using namespace Gtk;
 using namespace Glib;
 using namespace Gtkmm2ext;
 using namespace Editing;
 
+using PBD::internationalize;
+using PBD::atoi;
+
 const double Editor::timebar_height = 15.0;
 
 #include "editor_xpms"
@@ -90,8 +102,8 @@ static const int32_t slide_index = 0;
 static const int32_t splice_index = 1;
 
 static const gchar *edit_mode_strings[] = {
-       N_("Slide"),
-       N_("Splice"),
+       N_("Slide Edit"),
+       N_("Splice Edit"),
        0
 };
 
@@ -120,17 +132,17 @@ static const gchar *snap_type_strings[] = {
 };
 
 static const gchar *snap_mode_strings[] = {
-       N_("Normal"),
-       N_("Magnetic"),
+       N_("Normal Snap"),
+       N_("Magnetic Snap"),
        0
 };
 
 static const gchar *zoom_focus_strings[] = {
-       N_("Left"),
-       N_("Right"),
-       N_("Center"),
-       N_("Playhead"),
-       N_("Edit Cursor"),
+       N_("Focus Left"),
+       N_("Focus Right"),
+       N_("Focus Center"),
+       N_("Focus Play"),
+       N_("Focus Edit"),
        0
 };
 
@@ -147,66 +159,26 @@ Gdk::Cursor* Editor::speaker_cursor = 0;
 Gdk::Cursor* Editor::wait_cursor = 0;
 Gdk::Cursor* Editor::timebar_cursor = 0;
 
-bool
-Editor::on_key_press_event (GdkEventKey* ev)
-{
-       GtkWindow* win = gobj();
-
-       /* This exists to allow us to override the way GTK handles
-          key events. The normal sequence is:
-
-          a) event is delivered to a GtkWindow
-          b) accelerators/mnemonics are activated
-          c) if (b) didn't handle the event, propagate to
-              the focus widget and/or focus chain
-
-          The problem with this is that if the accelerators include
-          keys without modifiers, such as the space bar or the 
-          letter "e", then pressing the key while typing into
-          a text entry widget results in the accelerator being
-          activated, instead of the desired letter appearing
-          in the text entry.
-
-          There is no good way of fixing this, but this
-          represents a compromise. The idea is that 
-          key events involving modifiers (not Shift)
-          get routed into the activation pathway first, then
-          get propagated to the focus widget if necessary.
-          
-          If the key event doesn't involve modifiers,
-          we deliver to the focus widget first, thus allowing
-          it to get "normal text" without interference
-          from acceleration.
-
-          Of course, this can also be problematic: if there
-          is a widget with focus, then it will swallow
-          all "normal text" accelerators.
-       */
-
-       if (ev->state & ~Gdk::SHIFT_MASK) {
-               /* modifiers in effect, accelerate first */
-               if (!gtk_window_activate_key (win, ev)) {
-                       return gtk_window_propagate_key_event (win, ev);
-               } else {
-                       return true;
-               } 
-       }
-       
-       /* no modifiers, propagate first */
-       
-       if (!gtk_window_propagate_key_event (win, ev)) {
-               return gtk_window_activate_key (win, ev);
-       } 
-
-       return true;
-}
-
 void
 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;
+
+}
+
 Editor::Editor (AudioEngine& eng) 
        : engine (eng),
 
@@ -228,44 +200,25 @@ Editor::Editor (AudioEngine& eng)
             reset them as needed.
          */
 
-         vertical_adjustment (0.0, 0.0, 400.0, 10),
-         horizontal_adjustment (0.0, 0.0, 1200.0, 20),
+         vertical_adjustment (0.0, 0.0, 10.0, 400.0),
+         horizontal_adjustment (0.0, 0.0, 20.0, 1200.0),
 
          /* tool bar related */
 
-         editor_mixer_button (_("editor\nmixer")),
-
-         selection_start_clock (X_("SelectionStartClock"), true),
-         selection_end_clock (X_("SelectionEndClock"), true),
          edit_cursor_clock (X_("EditCursorClock"), true),
          zoom_range_clock (X_("ZoomRangeClock"), true, true),
          
          toolbar_selection_clock_table (2,3),
          
-         mouse_mode_button_table (2, 3),
-
-         mouse_select_button (_("range")),
-         mouse_move_button (_("object")),
-         mouse_gain_button (_("gain")),
-         mouse_zoom_button (_("zoom")),
-         mouse_timefx_button (_("timefx")),
-         mouse_audition_button (_("listen")),
-
          automation_mode_button (_("mode")),
          global_automation_button (_("automation")),
 
-         edit_mode_label (_("Edit Mode")),
-         snap_type_label (_("Snap To")),
-         snap_mode_label(_("Snap Mode")),
-         zoom_focus_label (_("Zoom Focus")),
-
          /* <CMT Additions> */
          image_socket_listener(0),
          /* </CMT Additions> */
 
          /* nudge */
 
-         nudge_label (_("Nudge")),
          nudge_clock (X_("NudgeClock"), true, true)
 
 {
@@ -275,8 +228,6 @@ Editor::Editor (AudioEngine& eng)
 
        PublicEditor::_instance = this;
 
-       init_colormap ();
-
        session = 0;
 
        selection = new Selection;
@@ -309,6 +260,11 @@ Editor::Editor (AudioEngine& eng)
        canvas_height = 0;
        autoscroll_timeout_tag = -1;
        interthread_progress_window = 0;
+
+#ifdef FFT_ANALYSIS
+       analysis_window = 0;
+#endif
+
        current_interthread_info = 0;
        _show_measures = true;
        _show_waveforms = true;
@@ -318,10 +274,12 @@ Editor::Editor (AudioEngine& eng)
        show_gain_after_trim = false;
        no_zoom_repos_update = false;
        ignore_route_list_reorder = 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; 
        have_pending_keyboard_selection = false;
        _follow_playhead = true;
        _xfade_visibility = true;
@@ -332,14 +290,13 @@ Editor::Editor (AudioEngine& eng)
        route_list_menu = 0;
        region_list_menu = 0;
        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;
-       import_audio_item = 0;
-       embed_audio_item = 0;
        region_edit_menu_split_item = 0;
        temp_location = 0;
        region_edit_menu_split_multichannel_item = 0;
@@ -351,9 +308,11 @@ Editor::Editor (AudioEngine& eng)
        clear_entered_track = false;
        _new_regionviews_show_envelope = false;
        current_timestretch = 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];
@@ -364,17 +323,19 @@ Editor::Editor (AudioEngine& eng)
        range_marker_drag_rect = 0;
        marker_drag_line = 0;
        
-       mouse_mode = MouseZoom; /* force change in next call */
        set_mouse_mode (MouseObject, true);
 
        frames_per_unit = 2048; /* too early to use set_frames_per_unit */
+       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 (track_spacing);
+       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));
        
@@ -385,13 +346,14 @@ Editor::Editor (AudioEngine& eng)
        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));
        
-       // edit_controls_hbox.pack_start (edit_controls_vbox, true, true);
        controls_layout.add (edit_controls_vbox);
        controls_layout.set_name ("EditControlsBase");
-       controls_layout.signal_size_request().connect (mem_fun(*this, &Editor::set_layout_width), false);
+       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);
@@ -475,195 +437,216 @@ Editor::Editor (AudioEngine& eng)
        edit_packer.set_col_spacings (0);
        edit_packer.set_row_spacings (0);
        edit_packer.set_homogeneous (false);
+       edit_packer.set_border_width (0);
        edit_packer.set_name ("EditorWindow");
+       
+       edit_packer.attach (edit_vscrollbar,         0, 1, 1, 3,    FILL,        FILL|EXPAND, 0, 0);
 
-       edit_packer.attach (edit_hscrollbar,         1, 2, 0, 1,    FILL|EXPAND,  FILL, 0, 0);
-
-       edit_packer.attach (time_button_event_box,   0, 1, 1, 2,    FILL,        FILL, 0, 0);
-       edit_packer.attach (time_canvas_event_box,   1, 2, 1, 2,    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, 2, 3,    FILL|EXPAND, FILL|EXPAND, 0, 0);
-       edit_packer.attach (edit_vscrollbar,         2, 3, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
-
-       edit_frame.set_name ("BaseFrame");
-       edit_frame.set_shadow_type (SHADOW_IN);
-       edit_frame.add (edit_packer);
-
-       zoom_in_button.set_name ("EditorTimeButton");
-       zoom_out_button.set_name ("EditorTimeButton");
-       ARDOUR_UI::instance()->tooltips().set_tip (zoom_in_button, _("Zoom in"));
-       ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_button, _("Zoom out"));
-
-       zoom_out_full_button.set_name ("EditorTimeButton");
-       ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_full_button, _("Zoom to session"));
+       edit_packer.attach (time_button_event_box,   1, 2, 0, 1,    FILL,        FILL, 0, 0);
+       edit_packer.attach (time_canvas_event_box,   2, 3, 0, 1,    FILL|EXPAND, FILL, 0, 0);
 
-       zoom_in_button.add (*(manage (new Gtk::Image (Stock::ZOOM_IN, ICON_SIZE_BUTTON))));
-       zoom_out_button.add (*(manage (new Gtk::Image (Stock::ZOOM_OUT, ICON_SIZE_BUTTON))));
-       zoom_out_full_button.add (*(manage (new Gtk::Image (Stock::ZOOM_FIT, ICON_SIZE_BUTTON))));
-       
-       zoom_in_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), false));
-       zoom_out_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), true));
-       zoom_out_full_button.signal_clicked().connect (mem_fun(*this, &Editor::temporal_zoom_session));
-       
-       zoom_indicator_box.pack_start (zoom_out_button, false, false);
-       zoom_indicator_box.pack_start (zoom_in_button, false, false);
-       zoom_indicator_box.pack_start (zoom_range_clock, false, false); 
-       zoom_indicator_box.pack_start (zoom_out_full_button, false, false);
-       
-       zoom_indicator_label.set_text (_("Zoom Span"));
-       zoom_indicator_label.set_name ("ToolBarLabel");
+       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);
 
-       zoom_indicator_vbox.set_spacing (3);
-       zoom_indicator_vbox.set_border_width (3);
-       zoom_indicator_vbox.pack_start (zoom_indicator_label, false, false);
-       zoom_indicator_vbox.pack_start (zoom_indicator_box, false, false);
+       edit_packer.attach (edit_hscrollbar,         2, 3, 2, 3,    FILL|EXPAND,  FILL, 0, 0);
 
-       bottom_hbox.set_border_width (3);
+       bottom_hbox.set_border_width (2);
        bottom_hbox.set_spacing (3);
 
        route_display_model = ListStore::create(route_display_columns);
-       route_list.set_model (route_display_model);
-       route_list.append_column (_("Tracks"), route_display_columns.text);
-       route_list.set_name ("TrackListDisplay");
-       route_list.get_selection()->set_mode (Gtk::SELECTION_MULTIPLE);
-       route_list.set_reorderable (true);
+       route_list_display.set_model (route_display_model);
+       route_list_display.append_column (_("Visible"), 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.set_reorderable (true);
+       route_list_display.set_size_request (100,-1);
+
+       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_list.set_size_request (75,-1);
-       route_list.set_headers_visible (true);
-       route_list.set_headers_clickable (true);
+       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));
 
-       // GTK2FIX
-       // route_list.signal_rows_reordered().connect (mem_fun (*this, &Editor::queue_route_list_reordered));
+       route_list_display.signal_button_press_event().connect (mem_fun (*this, &Editor::route_list_display_button_press), false);
 
-       // GTK2FIX
-       // route_display_model->set_sort_func (0, mem_fun (*this, &Editor::route_list_compare_func));
+       route_list_scroller.add (route_list_display);
+       route_list_scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
 
-       // GTK2FIX
-       //route_list.set_shadow_type (Gtk::SHADOW_IN);
+       group_model = ListStore::create(group_columns);
+       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.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));
+       edit_group_display.get_column (0)->set_expand (true);
+       edit_group_display.get_column (1)->set_expand (false);
+       edit_group_display.get_column (2)->set_expand (false);
+       edit_group_display.set_headers_visible (true);
+
+       /* name is directly editable */
+
+       CellRendererText* name_cell = dynamic_cast<CellRendererText*>(edit_group_display.get_column_cell_renderer (0));
+       name_cell->property_editable() = true;
+       name_cell->signal_edited().connect (mem_fun (*this, &Editor::edit_group_name_edit));
+
+       /* use checkbox for the active + visible columns */
+
+       CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(edit_group_display.get_column_cell_renderer (1));
+       active_cell->property_activatable() = true;
+       active_cell->property_radio() = false;
 
-       route_list_scroller.add (route_list);
-       route_list_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
+       active_cell = dynamic_cast<CellRendererToggle*>(edit_group_display.get_column_cell_renderer (1));
+       active_cell->property_activatable() = true;
+       active_cell->property_radio() = false;
 
-       route_list.get_selection()->signal_changed().connect (mem_fun (*this, &Editor::route_display_selection_changed));
-       route_list.signal_columns_changed().connect (mem_fun(*this, &Editor::route_list_column_click));
+       edit_group_display.set_name ("EditGroupList");
 
-       edit_group_list_button_label.set_text (_("Edit Groups"));
-       edit_group_list_button_label.set_name ("EditGroupTitleButton");
-       edit_group_list_button.add (edit_group_list_button_label);
-       edit_group_list_button.set_name ("EditGroupTitleButton");
+       group_model->signal_row_changed().connect (mem_fun (*this, &Editor::edit_group_row_change));
 
-       group_model = ListStore::create(group_columns);
-       edit_group_list.set_model (group_model);
-       edit_group_list.append_column (_("active"), group_columns.is_active);
-       edit_group_list.append_column (_("groupname"), group_columns.text);
-       edit_group_list.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
-       edit_group_list.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
+       edit_group_display.set_name ("EditGroupList");
+       edit_group_display.get_selection()->set_mode (SELECTION_SINGLE);
+       edit_group_display.set_reorderable (false);
+       edit_group_display.set_rules_hint (true);
+       edit_group_display.set_size_request (75, -1);
 
-       /* use checkbox for the active column */
+       edit_group_display_scroller.add (edit_group_display);
+       edit_group_display_scroller.set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 
-       CellRendererToggle *active_cell = dynamic_cast<CellRendererToggle*>(edit_group_list.get_column_cell_renderer (0));
-       active_cell->property_activatable() = true;
-       active_cell->property_radio() = false;
+       edit_group_display.signal_button_press_event().connect (mem_fun(*this, &Editor::edit_group_list_button_press_event), false);
 
-       edit_group_list.set_name ("MixerGroupList");
-       //edit_group_list.set_shadow_type (Gtk::SHADOW_IN);
+       VBox* edit_group_display_packer = manage (new VBox());
+       HButtonBox* edit_group_display_button_box = manage (new HButtonBox());
+       edit_group_display_button_box->set_homogeneous (true);
 
-       edit_group_list.columns_autosize ();
-       edit_group_list.get_selection()->set_mode (Gtk::SELECTION_MULTIPLE);
-       edit_group_list.set_reorderable (false);
+       Button* edit_group_add_button = manage (new Button ());
+       Button* edit_group_remove_button = manage (new Button ());
 
-       edit_group_list.set_size_request (75, -1);
-       edit_group_list.set_headers_visible (true);
+       Widget* w;
 
-       edit_group_list_scroller.add (edit_group_list);
-       edit_group_list_scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
+       w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
+       w->show();
+       edit_group_add_button->add (*w);
 
-       edit_group_list_button.signal_clicked().connect (mem_fun(*this, &Editor::edit_group_list_button_clicked));
-       edit_group_list.signal_button_press_event().connect (mem_fun(*this, &Editor::edit_group_list_button_press_event));
-       edit_group_list.get_selection()->signal_changed().connect (mem_fun(*this, &Editor::edit_group_selection_changed));
+       w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
+       w->show();
+       edit_group_remove_button->add (*w);
+
+       edit_group_add_button->signal_clicked().connect (mem_fun (*this, &Editor::new_edit_group));
+       edit_group_remove_button->signal_clicked().connect (mem_fun (*this, &Editor::remove_selected_edit_group));
        
-       TreeModel::Row row = *(group_model->append());
-       row[group_columns.is_active] = false;
-       row[group_columns.text] = (_("-all-"));
-       edit_group_list.get_selection()->select (row);
-/* GTK2FIX is set_data(0) setting the is_active to false here?
-       list<string> stupid_list;
+       edit_group_display_button_box->pack_start (*edit_group_add_button);
+       edit_group_display_button_box->pack_start (*edit_group_remove_button);
 
-       stupid_list.push_back ("*");
-       stupid_list.push_back (_("-all-"));
+       edit_group_display_packer->pack_start (edit_group_display_scroller, true, true);
+       edit_group_display_packer->pack_start (*edit_group_display_button_box, false, false);
+
+       region_list_display.set_size_request (100, -1);
+       region_list_display.set_name ("RegionListDisplay");
 
-       edit_group_list.rows().push_back (stupid_list);
-       edit_group_list.rows().back().set_data (0);
-       edit_group_list.rows().back().select();
-       
-*/
-       edit_group_vbox.pack_start (edit_group_list_button, false, false);
-       edit_group_vbox.pack_start (edit_group_list_scroller, true, true);
-       
        region_list_model = TreeStore::create (region_list_columns);
-       region_list_sort_model = TreeModelSort::create (region_list_model);
        region_list_model->set_sort_func (0, mem_fun (*this, &Editor::region_list_sorter));
+       region_list_model->set_sort_column (0, SORT_ASCENDING);
 
-       region_list_display.set_model (region_list_sort_model);
+       region_list_display.set_model (region_list_model);
        region_list_display.append_column (_("Regions"), region_list_columns.name);
-       region_list_display.set_reorderable (true);
-       region_list_display.set_size_request (100, -1);
-       region_list_display.set_data ("editor", this);
-       region_list_display.set_flags (Gtk::CAN_FOCUS);
-       region_list_display.set_name ("RegionListDisplay");
+       region_list_display.set_headers_visible (false);
+       region_list_display.set_hover_expand (true);
 
-       region_list_scroller.add (region_list_display);
-       region_list_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
+       region_list_display.get_selection()->set_select_function (mem_fun (*this, &Editor::region_list_selection_filter));
+       
+       TreeViewColumn* tv_col = region_list_display.get_column(0);
+       CellRendererText* renderer = dynamic_cast<CellRendererText*>(region_list_display.get_column_cell_renderer (0));
+       tv_col->add_attribute(renderer->property_text(), region_list_columns.name);
+       tv_col->add_attribute(renderer->property_foreground_gdk(), region_list_columns.color_);
+       
+       region_list_display.get_selection()->set_mode (SELECTION_MULTIPLE);
+       region_list_display.add_object_drag (region_list_columns.region.index(), "regions");
 
-       list<Gtk::TargetEntry> region_list_target_table;
+       /* setup DnD handling */
+       
+       list<TargetEntry> region_list_target_table;
        
-       region_list_target_table.push_back (TargetEntry ("STRING"));
        region_list_target_table.push_back (TargetEntry ("text/plain"));
        region_list_target_table.push_back (TargetEntry ("text/uri-list"));
        region_list_target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
+       
+       region_list_display.add_drop_targets (region_list_target_table);
+       region_list_display.signal_drag_data_received().connect (mem_fun(*this, &Editor::region_list_display_drag_data_received));
 
-       // GTK2FIX
-       // region_list_display.drag_dest_set (region_list_target_table, DEST_DEFAULT_ALL, GdkDragAction (Gdk::ACTION_COPY|Gdk::ACTION_MOVE));
-       // 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_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));
+       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));
-       // GTK2FIX
-       //region_list_display.unselect_row.connect (mem_fun(*this, &Editor::region_list_display_unselected));
-       //region_list_display.signal_columns_changed().connect (mem_fun(*this, &Editor::region_list_column_click));
+       // region_list_display.signal_popup_menu().connect (bind (mem_fun (*this, &Editor::show_region_list_display_context_menu), 1, 0));
        
        named_selection_scroller.add (named_selection_display);
-       named_selection_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
+       named_selection_scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
 
        named_selection_model = TreeStore::create (named_selection_columns);
        named_selection_display.set_model (named_selection_model);
        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.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
+       named_selection_display.get_selection()->set_mode (SELECTION_SINGLE);
        named_selection_display.set_size_request (100, -1);
-       named_selection_display.set_headers_visible (true);
-       named_selection_display.set_headers_clickable (true);
-       named_selection_display.signal_button_press_event().connect (mem_fun(*this, &Editor::named_selection_display_button_press));
+       named_selection_display.signal_button_press_event().connect (mem_fun(*this, &Editor::named_selection_display_button_press), false);
        named_selection_display.get_selection()->signal_changed().connect (mem_fun (*this, &Editor::named_selection_display_selection_changed));
 
-               the_notebook.append_page (region_list_scroller, _("Regions"));
-               the_notebook.append_page (route_list_scroller, _("Tracks/Busses"));
-       the_notebook.append_page (edit_group_vbox, _("Edit Groups"));
-       the_notebook.append_page (named_selection_scroller, _("Chunks"));
-       the_notebook.set_show_tabs (true);
-
-       TearOff *notebook_tearoff = manage (new TearOff (the_notebook));
+       /* SNAPSHOTS */
+
+       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_size_request (75, -1);
+       snapshot_display.set_headers_visible (false);
+       snapshot_display.set_reorderable (false);
+       snapshot_display_scroller.add (snapshot_display);
+       snapshot_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
+
+       snapshot_display.get_selection()->signal_changed().connect (mem_fun(*this, &Editor::snapshot_display_selection_changed));
+       snapshot_display.signal_button_press_event().connect (mem_fun (*this, &Editor::snapshot_display_button_press), false);
+
+       Gtk::Label* nlabel;
+
+       nlabel = manage (new Label (_("Regions")));
+       nlabel->set_angle (-90);
+               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);
+       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);
 
-       edit_pane.pack1 (edit_frame, true, true);
-       edit_pane.pack2 (*notebook_tearoff, true, true);
+       the_notebook.set_show_tabs (true);
+       the_notebook.set_scrollable (true);
+       the_notebook.popup_enable ();
+       the_notebook.set_tab_pos (Gtk::POS_RIGHT);
 
-       edit_pane.signal_size_allocate().connect_notify (bind (mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Gtk::Paned*> (&edit_pane)));
+       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)));
 
        top_hbox.pack_start (toolbar_frame, true, true);
 
@@ -679,6 +662,10 @@ Editor::Editor (AudioEngine& eng)
        add_accel_group (ActionManager::ui_manager->get_accel_group());
 
        vpacker.pack_end (global_hpacker, true, true);
+
+       /* register actions now so that set_state() can find them and set toggles/checks etc */
+       
+       register_actions ();
        
        XMLNode* node = ARDOUR_UI::instance()->editor_settings();
        set_state (*node);
@@ -686,15 +673,15 @@ Editor::Editor (AudioEngine& eng)
        _playlist_selector = new PlaylistSelector();
        _playlist_selector->signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
 
-       AudioRegionView::AudioRegionViewGoingAway.connect (mem_fun(*this, &Editor::catch_vanishing_audio_regionview));
+       RegionView::RegionViewGoingAway.connect (mem_fun(*this, &Editor::catch_vanishing_regionview));
 
        /* nudge stuff */
 
-       nudge_forward_button.add (*(manage (new Gtk::Image (Gdk::Pixbuf::create_from_xpm_data(right_arrow_xpm)))));
-       nudge_backward_button.add (*(manage (new Gtk::Image (Gdk::Pixbuf::create_from_xpm_data(left_arrow_xpm)))));
+       nudge_forward_button.add (*(manage (new Image (get_xpm("right_arrow.xpm")))));
+       nudge_backward_button.add (*(manage (new Image (get_xpm("left_arrow.xpm")))));
 
-       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"));
+       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"));
 
        nudge_forward_button.set_name ("TransportButton");
        nudge_backward_button.set_name ("TransportButton");
@@ -710,8 +697,15 @@ Editor::Editor (AudioEngine& eng)
        signal_configure_event().connect (mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
        signal_delete_event().connect (mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::exit_on_main_window_close));
 
+       /* allow external control surfaces/protocols to do various things */
+
+       ControlProtocol::ZoomToSession.connect (mem_fun (*this, &Editor::temporal_zoom_session));
+       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));
        constructed = true;
        instant_save ();
+
 }
 
 Editor::~Editor()
@@ -738,7 +732,7 @@ Editor::add_toplevel_controls (Container& cont)
 }
 
 void
-Editor::catch_vanishing_audio_regionview (AudioRegionView *rv)
+Editor::catch_vanishing_regionview (RegionView *rv)
 {
        /* note: the selection will take care of the vanishing
           audioregionview by itself.
@@ -754,7 +748,7 @@ Editor::catch_vanishing_audio_regionview (AudioRegionView *rv)
 }
 
 void
-Editor::set_entered_regionview (AudioRegionView* rv)
+Editor::set_entered_regionview (RegionView* rv)
 {
        if (rv == entered_regionview) {
                return;
@@ -781,15 +775,6 @@ Editor::set_entered_track (TimeAxisView* tav)
        }
 }
 
-gint
-Editor::left_track_canvas (GdkEventCrossing *ev)
-{
-       set_entered_track (0);
-       set_entered_regionview (0);
-       return FALSE;
-}
-
-
 void
 Editor::show_window ()
 {
@@ -813,7 +798,6 @@ 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);
 }
@@ -853,10 +837,6 @@ Editor::set_frames_per_unit (double fpu)
           which will do the same updates.
        */
        
-       if (session) {
-               horizontal_adjustment.set_upper (session->current_end_frame() / frames_per_unit);
-       }
-       
        if (!no_zoom_repos_update) {
                horizontal_adjustment.set_value (leftmost_frame/frames_per_unit);
                update_fixed_rulers ();
@@ -864,13 +844,22 @@ Editor::set_frames_per_unit (double fpu)
        }
 
        if (mouse_mode == MouseRange && selection->time.start () != selection->time.end_frame ()) {
-               for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
-                       (*i)->reshow_selection (selection->time);
+               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);
+                       }
                }
        }
 
        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);
 
@@ -881,14 +870,14 @@ Editor::set_frames_per_unit (double fpu)
 void
 Editor::instant_save ()
 {
-        if (!constructed || !ARDOUR_UI::instance()->session_loaded) {
+       if (!constructed || !ARDOUR_UI::instance()->session_loaded) {
                return;
        }
 
        if (session) {
                session->add_instant_xml(get_state(), session->path());
        } else {
-               Config->add_instant_xml(get_state(), Config->get_user_ardour_path());
+               Config->add_instant_xml(get_state(), get_user_ardour_path());
        }
 }
 
@@ -897,12 +886,15 @@ Editor::reposition_x_origin (jack_nframes_t frame)
 {
        if (frame != leftmost_frame) {
                leftmost_frame = frame;
-               double pixel = frame_to_pixel (frame);
-               if (pixel >= horizontal_adjustment.get_upper()) {
-                       horizontal_adjustment.set_upper (frame_to_pixel (frame + (current_page_frames())));
+               
+               jack_nframes_t rightmost_frame = leftmost_frame + current_page_frames ();
+
+               if (rightmost_frame > last_canvas_frame) {
+                       last_canvas_frame = rightmost_frame;
+                       reset_scrolling_region ();
                }
+
                horizontal_adjustment.set_value (frame/frames_per_unit);
-               XOriginChanged (); /* EMIT_SIGNAL */
        }
 }
 
@@ -935,11 +927,58 @@ Editor::zoom_adjustment_changed ()
        temporal_zoom (fpu);
 }
 
+void
+Editor::control_scroll (float fraction)
+{
+       ENSURE_GUI_THREAD(bind (mem_fun (*this, &Editor::control_scroll), fraction));
+
+       if (!session) {
+               return;
+       }
+
+       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
+       } else {
+               target = (session->transport_frame() + (jack_nframes_t) floor ((fraction * current_page_frames())));
+       }
+
+       /* move visuals, we'll catch up with it later */
+
+       playhead_cursor->set_position (target);
+
+       if (target > (current_page_frames() / 2)) {
+               /* try to center PH in window */
+               reposition_x_origin (target - (current_page_frames()/2));
+       } else {
+               reposition_x_origin (0);
+       }
+
+       /* cancel the existing */
+
+       control_scroll_connection.disconnect ();
+
+       /* add the next one */
+
+       control_scroll_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::deferred_control_scroll), target), 50);
+}
+
+bool
+Editor::deferred_control_scroll (jack_nframes_t target)
+{
+       session->request_locate (target);
+       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) {
@@ -953,7 +992,7 @@ void
 Editor::reposition_and_zoom (jack_nframes_t frame, double nfpu)
 {
        if (!repos_zoom_queued) {
-         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::deferred_reposition_and_zoom), frame, nfpu));
+               Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::deferred_reposition_and_zoom), frame, nfpu));
                repos_zoom_queued = true;
        }
 }
@@ -981,16 +1020,9 @@ void
 Editor::on_realize ()
 {
        Window::on_realize ();
-
-       /* Even though we're not using acceleration, we want the
-          labels to show up.
-       */
-
-       track_context_menu.accelerate (*this->get_toplevel());
-       track_region_context_menu.accelerate (*this->get_toplevel());
+       Realized ();
 }
 
-
 void
 Editor::queue_session_control_changed (Session::ControlType t)
 {
@@ -1000,7 +1032,7 @@ Editor::queue_session_control_changed (Session::ControlType t)
 void
 Editor::session_control_changed (Session::ControlType t)
 {
-       // right now we're only tracking the loop and punch state
+       // right now we're only tracking some state here 
 
        switch (t) {
        case Session::AutoLoop:
@@ -1011,43 +1043,20 @@ Editor::session_control_changed (Session::ControlType t)
                update_punch_range_view (true);
                break;
 
+       case Session::LayeringModel:
+               update_layering_model ();
+               break;
+
        default:
                break;
        }
 }
 
-void
-Editor::fake_add_edit_group (RouteGroup *group)
-{
-       Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &Editor::add_edit_group), group));
-}
-
-void
-Editor::fake_handle_new_audio_region (AudioRegion *region)
-{
-       Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &Editor::handle_new_audio_region), region));
-}
-
-void
-Editor::fake_handle_audio_region_removed (AudioRegion *region)
-{
-       Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &Editor::handle_audio_region_removed), region));
-}
-
-void
-Editor::fake_handle_new_duration ()
-{
-       Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &Editor::handle_new_duration));
-}
-
 void
 Editor::start_scrolling ()
 {
        scroll_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect 
                (mem_fun(*this, &Editor::update_current_screen));
-
-       slower_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect 
-               (mem_fun(*this, &Editor::update_slower));
 }
 
 void
@@ -1100,16 +1109,20 @@ Editor::center_screen_internal (jack_nframes_t frame, float page)
 void
 Editor::handle_new_duration ()
 {
-       reset_scrolling_region ();
+       ENSURE_GUI_THREAD (mem_fun (*this, &Editor::handle_new_duration));
 
-       if (session) {
-               horizontal_adjustment.set_upper (session->current_end_frame() / frames_per_unit);
-               horizontal_adjustment.set_value (leftmost_frame/frames_per_unit);
+       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_value (leftmost_frame/frames_per_unit);
 }
 
 void
-Editor::update_title_s (stringcr_t snap_name)
+Editor::update_title_s (const string & snap_name)
 {
        ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::update_title_s), snap_name));
        
@@ -1154,8 +1167,6 @@ Editor::connect_to_session (Session *t)
                first_action_message->hide();
        }
 
-       flush_track_canvas();
-
        update_title ();
 
        session->going_away.connect (mem_fun(*this, &Editor::session_going_away));
@@ -1167,11 +1178,12 @@ 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_p)));
-       session_connections.push_back (session->AudioRegionAdded.connect (mem_fun(*this, &Editor::fake_handle_new_audio_region)));
-       session_connections.push_back (session->AudioRegionRemoved.connect (mem_fun(*this, &Editor::fake_handle_audio_region_removed)));
-       session_connections.push_back (session->DurationChanged.connect (mem_fun(*this, &Editor::fake_handle_new_duration)));
-       session_connections.push_back (session->edit_group_added.connect (mem_fun(*this, &Editor::fake_add_edit_group)));
+       session_connections.push_back (session->RouteAdded.connect (mem_fun(*this, &Editor::handle_new_route)));
+       session_connections.push_back (session->AudioRegionAdded.connect (mem_fun(*this, &Editor::handle_new_audio_region)));
+       session_connections.push_back (session->AudioRegionRemoved.connect (mem_fun(*this, &Editor::handle_audio_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)));
+       session_connections.push_back (session->edit_group_removed.connect (mem_fun(*this, &Editor::edit_groups_changed)));
        session_connections.push_back (session->NamedSelectionAdded.connect (mem_fun(*this, &Editor::handle_new_named_selection)));
        session_connections.push_back (session->NamedSelectionRemoved.connect (mem_fun(*this, &Editor::handle_new_named_selection)));
        session_connections.push_back (session->DirtyChanged.connect (mem_fun(*this, &Editor::update_title)));
@@ -1184,18 +1196,18 @@ Editor::connect_to_session (Session *t)
 
        session_connections.push_back (session->tempo_map().StateChanged.connect (mem_fun(*this, &Editor::tempo_map_changed)));
 
-       session->foreach_edit_group(this, &Editor::add_edit_group);
-
-       editor_mixer_button.signal_toggled().connect (mem_fun(*this, &Editor::editor_mixer_button_toggled));
-       editor_mixer_button.set_name (X_("EditorMixerButton"));
+       edit_groups_changed ();
 
        edit_cursor_clock.set_session (session);
-       selection_start_clock.set_session (session);
-       selection_end_clock.set_session (session);
        zoom_range_clock.set_session (session);
        _playlist_selector->set_session (session);
        nudge_clock.set_session (session);
 
+#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]);
@@ -1238,7 +1250,7 @@ Editor::connect_to_session (Session *t)
        update_punch_range_view (true);
        
        session->ControlChanged.connect (mem_fun(*this, &Editor::queue_session_control_changed));
-
+       session->StateSaved.connect (mem_fun(*this, &Editor::session_state_saved));
        
        refresh_location_display ();
        session->locations()->added.connect (mem_fun(*this, &Editor::add_new_location));
@@ -1247,19 +1259,39 @@ 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));
 
-       reset_scrolling_region ();
+       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);
+       }
+
+       /* xfade visibility state set from editor::set_state() */
+       
+       update_crossfade_model ();
+       update_layering_model ();
+
+       handle_new_duration ();
 
        redisplay_regions ();
        redisplay_named_selections ();
+       redisplay_snapshots ();
 
-       //route_list.freeze (); GTK2FIX
-       route_display_model->clear ();
-       session->foreach_route (this, &Editor::handle_new_route);
-       // route_list.select_all ();
-       // GTK2FIX
-       //route_list.sort ();
-       route_list_reordered ();
-       //route_list.thaw ();
+       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);
@@ -1272,7 +1304,6 @@ Editor::connect_to_session (Session *t)
 
        leftmost_frame = 0;
        
-       horizontal_adjustment.set_upper (session->current_end_frame() / frames_per_unit);
        horizontal_adjustment.set_value (0);
 
        restore_ruler_visibility ();
@@ -1293,22 +1324,25 @@ Editor::connect_to_session (Session *t)
                TreeModel::Children rows = route_display_model->children();
                TreeModel::Children::iterator i;
        
-               //route_list.freeze ();
+               no_route_list_redisplay = true;
                
                for (i = rows.begin(); i != rows.end(); ++i) {
-                 TimeAxisView *tv =  (*i)[route_display_columns.tv];
+                       TimeAxisView *tv =  (*i)[route_display_columns.tv];
                        AudioTimeAxisView *atv;
-
+                       
                        if ((atv = dynamic_cast<AudioTimeAxisView*>(tv)) != 0) {
-                               if (atv->route().master()) {
-                                       route_list.get_selection()->unselect (i);
-                                       //(*i)->unselect ();
+                               if (atv->route()->master()) {
+                                       route_list_display.get_selection()->unselect (i);
                                }
                        }
                }
-
-               //route_list.thaw ();
+               
+               no_route_list_redisplay = false;
+               redisplay_route_list ();
        }
+
+        /* register for undo history */
+        session->register_with_memento_command_factory(_id, this);
 }
 
 void
@@ -1371,7 +1405,7 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
        switch (item_type) {
        case FadeInItem:
        case FadeInHandleItem:
-               if (arv->region.fade_in_active()) {
+               if (arv->audio_region().fade_in_active()) {
                        items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_in_active), false)));
                } else {
                        items.push_back (MenuElem (_("Activate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_in_active), true)));
@@ -1379,16 +1413,16 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
                
                items.push_back (SeparatorElem());
                
-               items.push_back (MenuElem (_("Linear"), bind (mem_fun (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::Linear)));
-               items.push_back (MenuElem (_("Slowest"), bind (mem_fun (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::LogB)));
-               items.push_back (MenuElem (_("Slow"), bind (mem_fun (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::Fast)));
-               items.push_back (MenuElem (_("Fast"), bind (mem_fun (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::LogA)));
-               items.push_back (MenuElem (_("Fastest"), bind (mem_fun (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::Slow)));
+               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)));
                break;
 
        case FadeOutItem:
        case FadeOutHandleItem:
-               if (arv->region.fade_out_active()) {
+               if (arv->audio_region().fade_out_active()) {
                        items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_out_active), false)));
                } else {
                        items.push_back (MenuElem (_("Activate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_out_active), true)));
@@ -1396,11 +1430,11 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
                
                items.push_back (SeparatorElem());
                
-               items.push_back (MenuElem (_("Linear"), bind (mem_fun (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::Linear)));
-               items.push_back (MenuElem (_("Slowest"), bind (mem_fun (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::Fast)));
-               items.push_back (MenuElem (_("Slow"), bind (mem_fun (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::LogB)));
-               items.push_back (MenuElem (_("Fast"), bind (mem_fun (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::LogA)));
-               items.push_back (MenuElem (_("Fastest"), bind (mem_fun (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::Slow)));
+               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)));
 
                break;
        default:
@@ -1422,8 +1456,8 @@ Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type,
 
        switch (item_type) {
        case RegionItem:
-       case AudioRegionViewName:
-       case AudioRegionViewNameHighlight:
+       case RegionViewName:
+       case RegionViewNameHighlight:
                if (with_selection) {
                        build_menu_function = &Editor::build_track_selection_context_menu;
                } else {
@@ -1463,27 +1497,26 @@ Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type,
 
        switch (item_type) {
        case RegionItem:
-       case AudioRegionViewName:
-       case AudioRegionViewNameHighlight:
+       case RegionViewName:
+       case RegionViewNameHighlight:
                if (!with_selection) {
                        if (region_edit_menu_split_item) {
-                               if (clicked_regionview && clicked_regionview->region.covers (edit_cursor->current_frame)) {
-                                       // GTK2FIX find the action, change its sensitivity
-                                       // region_edit_menu_split_item->set_sensitive (true);
+                               if (clicked_regionview && clicked_regionview->region().covers (edit_cursor->current_frame)) {
+                                       ActionManager::set_sensitive (ActionManager::edit_cursor_in_region_sensitive_actions, true);
                                } else {
-                                       // GTK2FIX see above
-                                       // region_edit_menu_split_item->set_sensitive (false);
+                                       ActionManager::set_sensitive (ActionManager::edit_cursor_in_region_sensitive_actions, false);
                                }
                        }
+                       /*
                        if (region_edit_menu_split_multichannel_item) {
-                               if (clicked_regionview && clicked_regionview->region.n_channels() > 1) {
+                               if (clicked_regionview && clicked_regionview->region().n_channels() > 1) {
                                        // GTK2FIX find the action, change its sensitivity
                                        // region_edit_menu_split_multichannel_item->set_sensitive (true);
                                } else {
                                        // GTK2FIX see above
                                        // region_edit_menu_split_multichannel_item->set_sensitive (false);
                                }
-                       }
+                       }*/
                }
                break;
 
@@ -1563,13 +1596,13 @@ Editor::build_track_region_context_menu (jack_nframes_t frame)
        AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_trackview);
 
        if (atv) {
-               DiskStream* ds;
+               boost::shared_ptr<Diskstream> ds;
                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->view, (*i), edit_items);
+                               add_region_context_items (atv->audio_view(), (*i), edit_items);
                        }
                        delete regions;
                }
@@ -1590,7 +1623,7 @@ Editor::build_track_crossfade_context_menu (jack_nframes_t frame)
        AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_trackview);
 
        if (atv) {
-               DiskStream* ds;
+               boost::shared_ptr<Diskstream> ds;
                Playlist* pl;
                AudioPlaylist* apl;
 
@@ -1604,11 +1637,11 @@ Editor::build_track_crossfade_context_menu (jack_nframes_t frame)
                        bool many = xfades.size() > 1;
 
                        for (AudioPlaylist::Crossfades::iterator i = xfades.begin(); i != xfades.end(); ++i) {
-                               add_crossfade_context_items (atv->view, (*i), edit_items, many);
+                               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->view, (*i), edit_items);
+                               add_region_context_items (atv->audio_view(), (*i), edit_items);
                        }
 
                        delete regions;
@@ -1620,6 +1653,46 @@ Editor::build_track_crossfade_context_menu (jack_nframes_t frame)
        return &track_crossfade_context_menu;
 }
 
+#ifdef FFT_ANALYSIS
+void
+Editor::analyze_region_selection()
+{
+       if (analysis_window == 0) {
+               analysis_window = new AnalysisWindow();
+
+               if (session != 0)
+                       analysis_window->set_session(session);
+
+               analysis_window->show_all();
+       }
+
+       analysis_window->set_regionmode();
+       analysis_window->analyze();
+       
+       analysis_window->present();
+}
+
+void
+Editor::analyze_range_selection()
+{
+       if (analysis_window == 0) {
+               analysis_window = new AnalysisWindow();
+
+               if (session != 0)
+                       analysis_window->set_session(session);
+
+               analysis_window->show_all();
+       }
+
+       analysis_window->set_rangemode();
+       analysis_window->analyze();
+       
+       analysis_window->present();
+}
+#endif /* FFT_ANALYSIS */
+
+
+
 Menu*
 Editor::build_track_selection_context_menu (jack_nframes_t ignored)
 {
@@ -1634,7 +1707,7 @@ Editor::build_track_selection_context_menu (jack_nframes_t ignored)
 }
 
 void
-Editor::add_crossfade_context_items (StreamView* view, Crossfade* xfade, Menu_Helpers::MenuList& edit_items, bool many)
+Editor::add_crossfade_context_items (AudioStreamView* view, Crossfade* xfade, Menu_Helpers::MenuList& edit_items, bool many)
 {
        using namespace Menu_Helpers;
        Menu     *xfade_menu = manage (new Menu);
@@ -1691,7 +1764,7 @@ Editor::xfade_edit_right_region ()
 }
 
 void
-Editor::add_region_context_items (StreamView* sv, Region* region, Menu_Helpers::MenuList& edit_items)
+Editor::add_region_context_items (AudioStreamView* sv, Region* region, Menu_Helpers::MenuList& edit_items)
 {
        using namespace Menu_Helpers;
        Menu     *region_menu = manage (new Menu);
@@ -1721,6 +1794,11 @@ Editor::add_region_context_items (StreamView* sv, Region* region, Menu_Helpers::
        items.push_back (MenuElem (_("Audition"), mem_fun(*this, &Editor::audition_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
+
        items.push_back (SeparatorElem());
 
        /* XXX hopefully this nonsense will go away with SigC++ 2.X, where the compiler
@@ -1760,6 +1838,13 @@ Editor::add_region_context_items (StreamView* sv, Region* region, Menu_Helpers::
        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 (SeparatorElem());
+                        
        /* Nudge region */
 
        Menu *nudge_menu = manage (new Menu());
@@ -1827,20 +1912,30 @@ Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
 
        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)));
+
+#ifdef FFT_ANALYSIS
        items.push_back (SeparatorElem());
-       items.push_back (MenuElem (_("Create chunk from range"), mem_fun(*this, &Editor::name_selection)));
+       items.push_back (MenuElem (_("Analyze range"), mem_fun(*this, &Editor::analyze_range_selection)));
+#endif
+       
        items.push_back (SeparatorElem());
-       items.push_back (MenuElem (_("Create Region"), mem_fun(*this, &Editor::new_region_from_selection)));
-       items.push_back (MenuElem (_("Separate Region"), mem_fun(*this, &Editor::separate_region_from_selection)));
-       items.push_back (MenuElem (_("Crop Region to range"), mem_fun(*this, &Editor::crop_region_to_selection)));
-       items.push_back (MenuElem (_("Bounce range"), mem_fun(*this, &Editor::bounce_range_selection)));
+       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 (SeparatorElem());
-       items.push_back (MenuElem (_("Duplicate"), bind (mem_fun(*this, &Editor::duplicate_dialog), false)));
+       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 (_("Export"), mem_fun(*this, &Editor::export_selection)));
+       items.push_back (MenuElem (_("Set range to loop range"), mem_fun(*this, &Editor::set_selection_from_loop)));
+       items.push_back (MenuElem (_("Set range to punch range"), mem_fun(*this, &Editor::set_selection_from_punch)));
        items.push_back (SeparatorElem());
-       items.push_back (MenuElem (_("Fill range w/Region"), mem_fun(*this, &Editor::region_fill_selection)));
-       
+       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 (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());
 }
@@ -1870,13 +1965,19 @@ Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
        MenuList& select_items = select_menu->items();
        select_menu->set_name ("ArdourContextMenu");
        
-       select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), false)));
-       select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), false)));
-       select_items.push_back (MenuElem (_("Invert in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
-       select_items.push_back (MenuElem (_("Invert"), mem_fun(*this, &Editor::invert_selection)));
+       select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
+       select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), Selection::Set)));
+       select_items.push_back (MenuElem (_("Invert selection in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
+       select_items.push_back (MenuElem (_("Invert selection"), mem_fun(*this, &Editor::invert_selection)));
        select_items.push_back (SeparatorElem());
-       select_items.push_back (MenuElem (_("Select loop range"), mem_fun(*this, &Editor::set_selection_from_loop)));
-       select_items.push_back (MenuElem (_("Select punch range"), mem_fun(*this, &Editor::set_selection_from_punch)));
+       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 (SeparatorElem());
 
        edit_items.push_back (MenuElem (_("Select"), *select_menu));
@@ -1901,23 +2002,13 @@ Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
 
        cutnpaste_items.push_back (MenuElem (_("Insert chunk"), bind (mem_fun(*this, &Editor::paste_named_selection), 1.0f)));
 
-       cutnpaste_items.push_back (SeparatorElem());
-
-       cutnpaste_items.push_back (MenuElem (_("New Region from range"), mem_fun(*this, &Editor::new_region_from_selection)));
-       cutnpaste_items.push_back (MenuElem (_("Separate Range"), mem_fun(*this, &Editor::separate_region_from_selection)));
-
        edit_items.push_back (MenuElem (_("Edit"), *cutnpaste_menu));
 
        /* Adding new material */
        
-       Menu *import_menu = manage (new Menu());
-       MenuList& import_items = import_menu->items();
-       import_menu->set_name ("ArdourContextMenu");
-       
-       import_items.push_back (MenuElem (_("Insert Region"), bind (mem_fun(*this, &Editor::insert_region_list_selection), 1.0f)));
-       import_items.push_back (MenuElem (_("Insert external sndfile"), bind (mem_fun(*this, &Editor::insert_sndfile), false)));
-
-       edit_items.push_back (MenuElem (_("Import"), *import_menu));
+       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)));
 
        /* Nudge track */
 
@@ -1955,14 +2046,15 @@ Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
        MenuList& select_items = select_menu->items();
        select_menu->set_name ("ArdourContextMenu");
        
-       select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), false)));
-       select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), false)));
-       select_items.push_back (MenuElem (_("Invert in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
-       select_items.push_back (MenuElem (_("Invert"), mem_fun(*this, &Editor::invert_selection)));
-       select_items.push_back (SeparatorElem());
-       select_items.push_back (MenuElem (_("Select loop range"), mem_fun(*this, &Editor::set_selection_from_loop)));
-       select_items.push_back (MenuElem (_("Select punch range"), mem_fun(*this, &Editor::set_selection_from_punch)));
+       select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
+       select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), Selection::Set)));
+       select_items.push_back (MenuElem (_("Invert selection in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
+       select_items.push_back (MenuElem (_("Invert selection"), mem_fun(*this, &Editor::invert_selection)));
        select_items.push_back (SeparatorElem());
+       select_items.push_back (MenuElem (_("Select all after edit 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)));
 
        edit_items.push_back (MenuElem (_("Select"), *select_menu));
 
@@ -2023,54 +2115,19 @@ Editor::set_snap_mode (SnapMode mode)
        instant_save ();
 }
 
-void
-Editor::add_location_from_selection ()
-{
-       if (selection->time.empty()) {
-               return;
-       }
-
-       if (session == 0 || clicked_trackview == 0) {
-               return;
-       }
-
-       jack_nframes_t start = selection->time[clicked_selection].start;
-       jack_nframes_t end = selection->time[clicked_selection].end;
-
-       Location *location = new Location (start, end, "selection");
-
-       session->begin_reversible_command (_("add marker"));
-       session->add_undo (session->locations()->get_memento());
-       session->locations()->add (location, true);
-       session->add_redo_no_execute (session->locations()->get_memento());
-       session->commit_reversible_command ();
-}
-
-void
-Editor::add_location_from_playhead_cursor ()
-{
-       jack_nframes_t where = session->audible_frame();
-       
-       Location *location = new Location (where, where, "mark", Location::IsMark);
-       session->begin_reversible_command (_("add marker"));
-       session->add_undo (session->locations()->get_memento());
-       session->locations()->add (location, true);
-       session->add_redo_no_execute (session->locations()->get_memento());
-       session->commit_reversible_command ();
-}
-
-
 int
 Editor::set_state (const XMLNode& node)
 {
        const XMLProperty* prop;
        XMLNode* geometry;
-       int x, y, width, height, xoff, yoff;
+       int x, y, xoff, yoff;
+       Gdk::Geometry g;
+
 
        if ((geometry = find_named_node (node, "geometry")) == 0) {
 
-               width = default_width;
-               height = default_height;
+               g.base_width = default_width;
+               g.base_height = default_height;
                x = 1;
                y = 1;
                xoff = 0;
@@ -2078,23 +2135,23 @@ Editor::set_state (const XMLNode& node)
 
        } else {
 
-               width = atoi(geometry->property("x_size")->value());
-               height = atoi(geometry->property("y_size")->value());
+               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());
        }
 
-       set_default_size(width, height);
-       move (x, y-yoff);
+       set_default_size (g.base_width, g.base_height);
+       move (x, y);
 
        if ((prop = node.property ("zoom-focus"))) {
                set_zoom_focus ((ZoomFocus) atoi (prop->value()));
        }
 
        if ((prop = node.property ("zoom"))) {
-               set_frames_per_unit (atof (prop->value()));
+               set_frames_per_unit (PBD::atof (prop->value()));
        }
 
        if ((prop = node.property ("snap-to"))) {
@@ -2105,52 +2162,86 @@ Editor::set_state (const XMLNode& node)
                set_snap_mode ((SnapMode) atoi (prop->value()));
        }
 
+       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;
-               set_show_waveforms (yn);
+               RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleWaveformVisibility"));
+               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 ((prop = node.property ("show-waveforms-recording"))) {
                bool yn = (prop->value() == "yes");
                _show_waveforms_recording = !yn;
-               set_show_waveforms_recording (yn);
+               RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleWaveformsWhileRecording"));
+               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 ((prop = node.property ("show-measures"))) {
                bool yn = (prop->value() == "yes");
                _show_measures = !yn;
-               set_show_measures (yn);
+               RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleMeasureVisibility"));
+               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 ((prop = node.property ("follow-playhead"))) {
                bool yn = (prop->value() == "yes");
-               _follow_playhead = !yn;
-               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 ((prop = node.property ("xfades-visible"))) {
-               bool yn = (prop->value() == "yes");
-               _xfade_visibility = !yn;
-               set_xfade_visibility (yn);
-       }
 
        if ((prop = node.property ("region-list-sort-type"))) {
-               region_list_sort_type = (Editing::RegionListSortType) -1; /* force change */
+               region_list_sort_type = (Editing::RegionListSortType) -1; // force change 
                reset_region_list_sort_type(str2regionlistsorttype(prop->value()));
        }
 
-       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 ("xfades-visible"))) {
+               bool yn = (prop->value() == "yes");
+               _xfade_visibility = !yn;
+               // set_xfade_visibility (yn);
        }
 
-       if ((prop = node.property ("editor-mixer-button"))) {
-               editor_mixer_button.set_active(prop->value() == "yes");
+       if ((prop = node.property ("show-editor-mixer"))) {
+
+               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);
+               }
        }
 
        return 0;
@@ -2163,7 +2254,7 @@ Editor::get_state ()
        char buf[32];
 
        if (is_realized()) {
-               Glib::RefPtr<Gdk::Window> win = get_window();
+               Glib::RefPtr<Gdk::Window> win = get_window();
                
                int x, y, xoff, yoff, width, height;
                win->get_root_origin(x, y);
@@ -2206,8 +2297,13 @@ Editor::get_state ()
        node->add_property ("xfades-visible", _xfade_visibility ? "yes" : "no");
        node->add_property ("region-list-sort-type", enum2str(region_list_sort_type));
        node->add_property ("mouse-mode", enum2str(mouse_mode));
-       node->add_property ("editor-mixer-button", editor_mixer_button.get_active() ? "yes" : "no");
        
+       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);
+               node->add_property (X_("show-editor-mixer"), tact->get_active() ? "yes" : "no");
+       }
+
        return *node;
 }
 
@@ -2447,36 +2543,66 @@ void
 Editor::setup_toolbar ()
 {
        string pixmap_path;
+
+       const guint32 FUDGE = 18; // Combo's are stupid - they steal space from the entry for the button
+
+
+       /* Mode Buttons (tool selection) */
+
        vector<ToggleButton *> mouse_mode_buttons;
 
+       mouse_move_button.add (*(manage (new Image (get_xpm("tool_object.xpm")))));
+       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")))));
+       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.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.set_relief(Gtk::RELIEF_NONE);
        mouse_mode_buttons.push_back (&mouse_audition_button);
+       
        mouse_mode_button_set = new GroupedButtons (mouse_mode_buttons);
 
-       mouse_mode_button_table.set_homogeneous (true);
-       mouse_mode_button_table.set_col_spacings (2);
-       mouse_mode_button_table.set_row_spacings (2);
-       mouse_mode_button_table.set_border_width (5);
+       HBox* mode_box = manage(new HBox);
+       mode_box->set_border_width (2);
+       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);
+       mouse_mode_button_box.pack_start(mouse_zoom_button, true, true);
+       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.set_homogeneous(true);
 
-       mouse_mode_button_table.attach (mouse_move_button, 0, 1, 0, 1);
-       mouse_mode_button_table.attach (mouse_select_button, 1, 2, 0, 1);
-       mouse_mode_button_table.attach (mouse_zoom_button, 2, 3, 0, 1);
-       mouse_mode_button_table.attach (mouse_gain_button, 0, 1, 1, 2);
-       mouse_mode_button_table.attach (mouse_timefx_button, 1, 2, 1, 2);
-       mouse_mode_button_table.attach (mouse_audition_button, 2, 3, 1, 2);
+       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));
+       edit_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_mode_selection_done));
 
-       mouse_mode_tearoff = manage (new TearOff (mouse_mode_button_table));
+       mode_box->pack_start(edit_mode_selector);
+       mode_box->pack_start(mouse_mode_button_box);
+       
+       mouse_mode_tearoff = manage (new TearOff (*mode_box));
        mouse_mode_tearoff->set_name ("MouseModeBase");
 
-       mouse_mode_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Gtk::Box*>(&toolbar_hbox), 
-                                                 mouse_mode_tearoff->tearoff_window()));
-       mouse_mode_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Gtk::Box*> (&toolbar_hbox), 
-                                                 mouse_mode_tearoff->tearoff_window(), 1));
+       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), 
+                                                 &mouse_mode_tearoff->tearoff_window(), 1));
+       mouse_mode_tearoff->Hidden.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox), 
+                                                 &mouse_mode_tearoff->tearoff_window()));
+       mouse_mode_tearoff->Visible.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox), 
+                                                  &mouse_mode_tearoff->tearoff_window(), 1));
 
        mouse_move_button.set_name ("MouseModeButton");
        mouse_select_button.set_name ("MouseModeButton");
@@ -2485,19 +2611,19 @@ Editor::setup_toolbar ()
        mouse_timefx_button.set_name ("MouseModeButton");
        mouse_audition_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"));
-       ARDOUR_UI::instance()->tooltips().set_tip (mouse_gain_button, _("draw gain automation"));
-       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_move_button, _("Select/Move Objects"));
+       ARDOUR_UI::instance()->tooltips().set_tip (mouse_select_button, _("Select/Move Ranges"));
+       ARDOUR_UI::instance()->tooltips().set_tip (mouse_gain_button, _("Draw Gain Automation"));
+       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"));
 
-       mouse_move_button.unset_flags (Gtk::CAN_FOCUS);
-       mouse_select_button.unset_flags (Gtk::CAN_FOCUS);
-       mouse_gain_button.unset_flags (Gtk::CAN_FOCUS);
-       mouse_zoom_button.unset_flags (Gtk::CAN_FOCUS);
-       mouse_timefx_button.unset_flags (Gtk::CAN_FOCUS);
-       mouse_audition_button.unset_flags (Gtk::CAN_FOCUS);
+       mouse_move_button.unset_flags (CAN_FOCUS);
+       mouse_select_button.unset_flags (CAN_FOCUS);
+       mouse_gain_button.unset_flags (CAN_FOCUS);
+       mouse_zoom_button.unset_flags (CAN_FOCUS);
+       mouse_timefx_button.unset_flags (CAN_FOCUS);
+       mouse_audition_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));
@@ -2509,399 +2635,191 @@ Editor::setup_toolbar ()
        mouse_audition_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseAudition));
 
        // mouse_move_button.set_active (true);
+       
 
-       /* automation control */
-
-       global_automation_button.set_name ("MouseModeButton");
-       automation_mode_button.set_name ("MouseModeButton");
-
-       automation_box.set_spacing (2);
-       automation_box.set_border_width (2);
-       automation_box.pack_start (global_automation_button, false, false);
-       automation_box.pack_start (automation_mode_button, false, false);
-
-       /* Edit mode */
-
-       edit_mode_label.set_name ("ToolBarLabel");
-
-       edit_mode_selector.set_name ("EditModeSelector");
+       /* Zoom */
+       
+       zoom_box.set_spacing (1);
+       zoom_box.set_border_width (2);
 
-       edit_mode_box.set_spacing (3);
-       edit_mode_box.set_border_width (3);
+       zoom_in_button.set_name ("EditorTimeButton");
+       zoom_in_button.add (*(manage (new Image (get_xpm("zoom_in.xpm")))));
+       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.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), true));
+       ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_button, _("Zoom Out"));
 
-       /* XXX another disgusting hack because of the way combo boxes size themselves */
+       zoom_out_full_button.set_name ("EditorTimeButton");
+       zoom_out_full_button.add (*(manage (new Image (get_xpm("zoom_full.xpm")))));
+       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));
+       zoom_focus_selector.signal_changed().connect (mem_fun(*this, &Editor::zoom_focus_selection_done));
 
-       const guint32 FUDGE = 20; // Combo's are stupid - they steal space from the entry for the button
-       Gtkmm2ext::set_size_request_to_display_given_text (edit_mode_selector, "EdgtMode", 2+FUDGE, 10);
-       set_popdown_strings (edit_mode_selector, internationalize (edit_mode_strings));
-       edit_mode_box.pack_start (edit_mode_label, false, false);
-       edit_mode_box.pack_start (edit_mode_selector, false, false);
+       zoom_box.pack_start (zoom_focus_selector, false, false);
 
-       edit_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_mode_selection_done));
 
-       /* Snap Type */
+       /* Edit Cursor / Snap */
 
-       snap_type_label.set_name ("ToolBarLabel");
+       snap_box.set_spacing (1);
+       snap_box.set_border_width (2);
 
        snap_type_selector.set_name ("SnapTypeSelector");
-
-       snap_type_box.set_spacing (3);
-       snap_type_box.set_border_width (3);
-
-       /* XXX another disgusting hack because of the way combo boxes size themselves */
-
        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));
-
-       snap_type_box.pack_start (snap_type_label, false, false);
-       snap_type_box.pack_start (snap_type_selector, false, false);
-
        snap_type_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_type_selection_done));
-
-       /* Snap mode, not snap type */
-
-       snap_mode_label.set_name ("ToolBarLabel");
+       ARDOUR_UI::instance()->tooltips().set_tip (snap_type_selector, _("Unit to snap cursors and ranges to"));
 
        snap_mode_selector.set_name ("SnapModeSelector");
-       
-       snap_mode_box.set_spacing (3);
-       snap_mode_box.set_border_width (3);
-
-       Gtkmm2ext::set_size_request_to_display_given_text (snap_mode_selector, "SngpMode", 2+FUDGE, 10);
+       Gtkmm2ext::set_size_request_to_display_given_text (snap_mode_selector, "Magnetic Snap", 2+FUDGE, 10);
        set_popdown_strings (snap_mode_selector, internationalize (snap_mode_strings));
-
-       snap_mode_box.pack_start (snap_mode_label, false, false);
-       snap_mode_box.pack_start (snap_mode_selector, false, false);
-
        snap_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_mode_selection_done));
 
-       /* Zoom focus mode */
+       snap_box.pack_start (edit_cursor_clock, false, false);
+       snap_box.pack_start (snap_mode_selector, false, false);
+       snap_box.pack_start (snap_type_selector, false, false);
 
-       zoom_focus_label.set_name ("ToolBarLabel");
 
-       zoom_focus_selector.set_name ("ZoomFocusSelector");
-
-       zoom_focus_box.set_spacing (3);
-       zoom_focus_box.set_border_width (3);
-
-       /* XXX another disgusting hack because of the way combo boxes size themselves */
-
-       Gtkmm2ext::set_size_request_to_display_given_text (zoom_focus_selector, "Edgt Cursor", 2+FUDGE, 10);
-       set_popdown_strings (zoom_focus_selector, internationalize (zoom_focus_strings));
-
-       zoom_focus_box.pack_start (zoom_focus_label, false, false);
-       zoom_focus_box.pack_start (zoom_focus_selector, false, false);
-
-       zoom_focus_selector.signal_changed().connect (mem_fun(*this, &Editor::zoom_focus_selection_done));
-
-       /* selection/cursor clocks */
-
-       toolbar_selection_cursor_label.set_name ("ToolBarLabel");
-       selection_start_clock_label.set_name ("ToolBarLabel");
-       selection_end_clock_label.set_name ("ToolBarLabel");
-       edit_cursor_clock_label.set_name ("ToolBarLabel");
-
-       selection_start_clock_label.set_text (_("Start:"));
-       selection_end_clock_label.set_text (_("End:"));
-       edit_cursor_clock_label.set_text (_("Edit:"));
-
-       toolbar_selection_clock_table.set_border_width (5);
-       toolbar_selection_clock_table.set_col_spacings (2);
-       toolbar_selection_clock_table.set_homogeneous (false);
-
-//     toolbar_selection_clock_table.attach (selection_start_clock_label, 0, 1, 0, 1, 0, 0, 0, 0);
-//     toolbar_selection_clock_table.attach (selection_end_clock_label, 1, 2, 0, 1, 0, 0, 0, 0);
-       toolbar_selection_clock_table.attach (edit_cursor_clock_label, 2, 3, 0, 1, FILL, FILL, 0, 0);
-
-//     toolbar_selection_clock_table.attach (selection_start_clock, 0, 1, 1, 2, 0, 0);
-//     toolbar_selection_clock_table.attach (selection_end_clock, 1, 2, 1, 2, 0, 0);
-       toolbar_selection_clock_table.attach (edit_cursor_clock, 2, 3, 1, 2, FILL, FILL);
-
-
-//     toolbar_clock_vbox.set_spacing (2);
-//     toolbar_clock_vbox.set_border_width (10);
-       /* the editor/mixer button will be enabled at session connect */
+       /* Nudge */
 
-       editor_mixer_button.set_active(false);
-       editor_mixer_button.set_sensitive(false);
+       HBox *nudge_box = manage (new HBox);
+       nudge_box->set_spacing(1);
+       nudge_box->set_border_width (2);
 
-       HBox* hbox = new HBox;
-
-       hbox->pack_start (editor_mixer_button, false, false);
-       hbox->pack_start (toolbar_selection_clock_table, false, false);
-       hbox->pack_start (zoom_indicator_vbox, false, false); 
-       hbox->pack_start (zoom_focus_box, false, false);
-       hbox->pack_start (snap_type_box, false, false);
-       hbox->pack_start (snap_mode_box, false, false);
-       hbox->pack_start (edit_mode_box, false, false);
-
-       VBox *vbox = manage (new VBox);
-
-       vbox->set_spacing (3);
-       vbox->set_border_width (3);
-
-       HBox *nbox = manage (new HBox);
-       
        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));
 
-       nbox->pack_start (nudge_backward_button, false, false);
-       nbox->pack_start (nudge_forward_button, false, false);
-       nbox->pack_start (nudge_clock, false, false, 5);
+       nudge_box->pack_start (nudge_backward_button, false, false);
+       nudge_box->pack_start (nudge_forward_button, false, false);
+       nudge_box->pack_start (nudge_clock, false, false);
 
-       nudge_label.set_name ("ToolBarLabel");
 
-       vbox->pack_start (nudge_label, false, false);
-       vbox->pack_start (*nbox, false, false);
+       /* Pack everything in... */
 
-       hbox->pack_start (*vbox, false, false);
-
-       hbox->show_all ();
+       HBox* hbox = new HBox;
+       hbox->set_spacing(10);
 
        tools_tearoff = new TearOff (*hbox);
        tools_tearoff->set_name ("MouseModeBase");
 
-       tools_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Gtk::Box*>(&toolbar_hbox), 
-                                            tools_tearoff->tearoff_window()));
-       tools_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Gtk::Box*> (&toolbar_hbox), 
-                                            tools_tearoff->tearoff_window(), 0));
-
+       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), 
+                                            &tools_tearoff->tearoff_window(), 0));
+       tools_tearoff->Hidden.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox), 
+                                            &tools_tearoff->tearoff_window()));
+       tools_tearoff->Visible.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox), 
+                                             &tools_tearoff->tearoff_window(), 0));
 
-       toolbar_hbox.set_spacing (8);
-       toolbar_hbox.set_border_width (2);
+       toolbar_hbox.set_spacing (10);
+       toolbar_hbox.set_border_width (1);
 
-       toolbar_hbox.pack_start (*tools_tearoff, false, false);
        toolbar_hbox.pack_start (*mouse_mode_tearoff, false, false);
+       toolbar_hbox.pack_start (*tools_tearoff, false, false);
+
+       
+       hbox->pack_start (snap_box, false, false);
+       hbox->pack_start (zoom_box, false, false); 
+       hbox->pack_start (*nudge_box, false, false);
+
+       hbox->show_all ();
        
        toolbar_base.set_name ("ToolBarBase");
        toolbar_base.add (toolbar_hbox);
 
-       toolbar_frame.set_shadow_type (Gtk::SHADOW_OUT);
+       toolbar_frame.set_shadow_type (SHADOW_OUT);
        toolbar_frame.set_name ("BaseFrame");
        toolbar_frame.add (toolbar_base);
 }
 
-gint
-Editor::_autoscroll_canvas (void *arg)
-{
-       return ((Editor *) arg)->autoscroll_canvas ();
-}
-
-gint
-Editor::autoscroll_canvas ()
-{
-       jack_nframes_t new_frame;
-       bool keep_calling = true;
-
-       if (autoscroll_direction < 0) {
-               if (leftmost_frame < autoscroll_distance) {
-                       new_frame = 0;
-               } else {
-                       new_frame = leftmost_frame - autoscroll_distance;
-               }
-       } else {
-               if (leftmost_frame > max_frames - autoscroll_distance) {
-                       new_frame = max_frames;
-               } else {
-                       new_frame = leftmost_frame + autoscroll_distance;
-               }
-       }
-
-       if (new_frame != leftmost_frame) {
-               reposition_x_origin (new_frame);
-       }
-
-       if (new_frame == 0 || new_frame == max_frames) {
-               /* we are done */
-               return FALSE;
-       }
-
-       autoscroll_cnt++;
-
-       if (autoscroll_cnt == 1) {
-
-               /* connect the timeout so that we get called repeatedly */
-               
-               autoscroll_timeout_tag = gtk_timeout_add (100, _autoscroll_canvas, this);
-               keep_calling = false;
-
-       } else if (autoscroll_cnt > 10 && autoscroll_cnt < 20) {
-               
-               /* after about a while, speed up a bit by changing the timeout interval */
-
-               autoscroll_timeout_tag = gtk_timeout_add (50, _autoscroll_canvas, this);
-               keep_calling = false;
-               
-       } else if (autoscroll_cnt >= 20 && autoscroll_cnt < 30) {
-
-               /* after about another while, speed up some more */
-
-               autoscroll_timeout_tag = gtk_timeout_add (25, _autoscroll_canvas, this);
-               keep_calling = false;
-
-       } else if (autoscroll_cnt >= 30) {
-
-               /* we've been scrolling for a while ... crank it up */
-
-               autoscroll_distance = 10 * (jack_nframes_t) floor (canvas_width * frames_per_unit);
-       }
-
-       return keep_calling;
-}
-
-void
-Editor::start_canvas_autoscroll (int dir)
-{
-       if (!session) {
-               return;
-       }
-
-       stop_canvas_autoscroll ();
-
-       autoscroll_direction = dir;
-       autoscroll_distance = (jack_nframes_t) floor ((canvas_width * frames_per_unit)/10.0);
-       autoscroll_cnt = 0;
-       
-       /* do it right now, which will start the repeated callbacks */
-       
-       autoscroll_canvas ();
-}
-
-void
-Editor::stop_canvas_autoscroll ()
-{
-       if (autoscroll_timeout_tag >= 0) {
-               gtk_timeout_remove (autoscroll_timeout_tag);
-               autoscroll_timeout_tag = -1;
-       }
-}
-
 int
-Editor::convert_drop_to_paths (vector<string>& paths, 
-                              GdkDragContext     *context,
+Editor::convert_drop_to_paths (vector<ustring>& paths, 
+                              const RefPtr<Gdk::DragContext>& context,
                               gint                x,
                               gint                y,
-                              GtkSelectionData   *data,
+                              const SelectionData& data,
                               guint               info,
                               guint               time)                               
 
 {      
-       string spath;
-       char *path;
-       int state;
-       gchar *tname = gdk_atom_name (data->type);
-
-       if (session == 0 || strcmp (tname, "text/plain") != 0) {
+       if (session == 0) {
                return -1;
        }
 
-       /* Parse the "uri-list" format that Nautilus provides, 
-          where each pathname is delimited by \r\n
-       */
+       vector<ustring> uris = data.get_uris();
 
-       path = (char *) data->data;
-       state = 0;
+       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.
+               */
 
-       for (int n = 0; n < data->length; ++n) {
+               if (data.get_target() != "text/plain") {
+                       return -1;
+               }
+  
+               /* Parse the "uri-list" format that Nautilus provides, 
+                  where each pathname is delimited by \r\n
+               */
+       
+               const char* p = data.get_text().c_str();
+               const char* q;
 
-               switch (state) {
-               case 0:
-                       if (path[n] == '\r') {
-                               state = 1;
-                       } else {
-                               spath += path[n];
-                       }
-                       break;
-               case 1:
-                       if (path[n] == '\n') {
-                               paths.push_back (spath);
-                               spath = "";
-                               state = 0;
-                       } else {
-                               warning << _("incorrectly formatted URI list, ignored")
-                                       << endmsg;
-                               return -1;
+               while (p)
+               {
+                       if (*p != '#')
+                       {
+                               while (g_ascii_isspace (*p))
+                                       p++;
+                               
+                               q = p;
+                               while (*q && (*q != '\n') && (*q != '\r'))
+                                       q++;
+                               
+                               if (q > p)
+                               {
+                                       q--;
+                                       while (q > p && g_ascii_isspace (*q))
+                                               q--;
+                                       
+                                       if (q > p)
+                                       {
+                                               uris.push_back (ustring (p, q - p + 1));
+                                       }
+                               }
                        }
-                       break;
+                       p = strchr (p, '\n');
+                       if (p)
+                               p++;
                }
-       }
 
-       /* nautilus and presumably some other file managers prefix even text/plain with file:// */
-               
-       for (vector<string>::iterator p = paths.begin(); p != paths.end(); ++p) {
-
-               // cerr << "dropped text was " << *p << endl;
-
-               url_decode (*p);
-
-               // cerr << "decoded was " << *p << endl;
-
-               if ((*p).substr (0,7) == "file://") {
-                       (*p) = (*p).substr (7);
+               if (uris.empty()) {
+                       return -1;
                }
        }
        
-       return 0;
-}
-
-void  
-Editor::track_canvas_drag_data_received  (GdkDragContext     *context,
-                                         gint                x,
-                                         gint                y,
-                                         GtkSelectionData   *data,
-                                         guint               info,
-                                         guint               time)
-{
-       TimeAxisView* tvp;
-       AudioTimeAxisView* tv;
-       double cy;
-       vector<string> paths;
-       string spath;
-       GdkEvent ev;
-       jack_nframes_t frame;
-
-       if (convert_drop_to_paths (paths, context, x, y, data, info, time)) {
-               goto out;
-       }
-
-       /* D-n-D coordinates are window-relative, so convert to "world" coordinates
-        */
-
-       double wx;
-       double wy;
-
-       track_canvas.c2w( x, y, wx, wy);
-
-       ev.type = GDK_BUTTON_RELEASE;
-       ev.button.x = wx;
-       ev.button.y = wy;
-
-       frame = event_frame (&ev, 0, &cy);
-
-       snap_to (frame);
-
-       if ((tvp = trackview_by_y_position (cy)) == 0) {
-
-               /* drop onto canvas background: create a new track */
-
-               insert_paths_as_new_tracks (paths, false);
-
-               
-       } else if ((tv = dynamic_cast<AudioTimeAxisView*>(tvp)) != 0) {
-
-               /* check that its an audio track, not a bus */
-
-               if (tv->get_diskstream()) {
-
-                       for (vector<string>::iterator p = paths.begin(); p != paths.end(); ++p) {
-                               insert_sndfile_into (*p, true, tv, frame);
-                       }
+       for (vector<ustring>::iterator i = uris.begin(); i != uris.end(); ++i) {
+               if ((*i).substr (0,7) == "file://") {
+                       string p = *i;
+                        PBD::url_decode (p);
+                       paths.push_back (p.substr (7));
                }
-
        }
 
-  out:
-       gtk_drag_finish (context, TRUE, FALSE, time);
+       return 0;
 }
 
 void
@@ -2956,7 +2874,7 @@ Editor::restore_state (State *state)
 
        *selection = *state->selection;
        time_selection_changed ();
-       region_selection_changed ();
+       region_selection_changed ();   
 
        /* XXX other selection change handlers? */
 }
@@ -2965,8 +2883,8 @@ void
 Editor::begin_reversible_command (string name)
 {
        if (session) {
-               UndoAction ua = get_memento();
-               session->begin_reversible_command (name, &ua);
+                before = &get_state();
+               session->begin_reversible_command (name);
        }
 }
 
@@ -2974,213 +2892,373 @@ void
 Editor::commit_reversible_command ()
 {
        if (session) {
-               UndoAction ua = get_memento();
-               session->commit_reversible_command (&ua);
+               session->commit_reversible_command (new MementoCommand<Editor>(*this, before, &get_state()));
        }
 }
 
-void
-Editor::flush_track_canvas ()
+bool
+Editor::set_selected_track_from_click (bool press, Selection::Operation op, bool with_undo, bool no_remove)
 {
-       /* I don't think this is necessary, and only causes more problems.
-          I'm commenting it out
-          and if the imageframe folks don't have any issues, we can take
-          out this method entirely
-       */
-       
-       //gnome_canvas_update_now (GNOME_CANVAS(track_canvas));
-       //gtk_main_iteration ();
-}
+       bool commit = false;
 
-void
-Editor::set_selected_track_from_click (bool add, bool with_undo, bool no_remove)
-{
        if (!clicked_trackview) {
-               return;
-       }
-
-       if (with_undo) {
-               begin_reversible_command (_("set selected trackview"));
+               return false;
        }
 
-       if (add) {
-               
+       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;
                }
-               
-       } else {
+               break;
 
+       case Selection::Set:
                if (selection->selected (clicked_trackview) && selection->tracks.size() == 1) {
                        /* no commit necessary */
-                       return;
                } 
 
                selection->set (clicked_trackview);
+               break;
+               
+       case Selection::Extend:
+               /* not defined yet */
+               break;
        }
-       
-       if (with_undo) {
-               commit_reversible_command ();
-       }
+
+       return commit;
 }
 
-void
-Editor::set_selected_control_point_from_click (bool add, bool with_undo, bool no_remove)
+bool
+Editor::set_selected_control_point_from_click (bool press, Selection::Operation op, bool with_undo, bool no_remove)
 {
        if (!clicked_control_point) {
-               return;
+               return false;
        }
 
-       if (with_undo) {
-               begin_reversible_command (_("set selected control point"));
+       /* select this point and any others that it represents */
+
+       double y1, y2;
+       jack_nframes_t x1, x2;
+
+       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;
+
+       return select_all_within (x1, x2, y1, y2, op);
+}
+
+void
+Editor::get_relevant_audio_tracks (AudioTimeAxisView& base, set<AudioTimeAxisView*>& relevant_tracks)
+{
+       /* step one: get all selected tracks and all tracks in the relevant edit groups */
+
+       for (TrackSelection::iterator ti = selection->tracks.begin(); ti != selection->tracks.end(); ++ti) {
+
+               AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(*ti);
+
+               if (!atv) {
+                       continue;
+               }
+
+               RouteGroup* group = atv->route()->edit_group();
+
+               if (group && group->is_active()) {
+                       
+                       /* active group for this track, loop over all tracks and get every member of the group */
+
+                       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);
+                                       }
+                               }
+                       }
+
+               } else {
+
+                       /* no active group, or no group */
+
+                       relevant_tracks.insert (&base);
+               }
+
        }
+}
 
-       if (add) {
-               
-       } else {
+void
+Editor::mapover_audio_tracks (slot<void,AudioTimeAxisView&,uint32_t> sl)
+{
+       set<AudioTimeAxisView*> relevant_tracks;
 
+       if (!clicked_audio_trackview) {
+               return;
        }
+
+       get_relevant_audio_tracks (*clicked_audio_trackview, relevant_tracks);
+
+       uint32_t sz = relevant_tracks.size();
        
-       if (with_undo) {
-               commit_reversible_command ();
+       for (set<AudioTimeAxisView*>::iterator ati = relevant_tracks.begin(); ati != relevant_tracks.end(); ++ati) {
+               sl (**ati, sz);
        }
 }
 
 void
-Editor::set_selected_regionview_from_click (bool add, bool no_track_remove)
+Editor::mapped_set_selected_regionview_from_click (RouteTimeAxisView& tv, uint32_t ignored, 
+                                                 RegionView* basis, vector<RegionView*>* all_equivs)
 {
-       if (!clicked_regionview) {
+       Playlist* pl;
+       vector<Region*> results;
+       RegionView* marv;
+       boost::shared_ptr<Diskstream> ds;
+
+       if ((ds = tv.get_diskstream()) == 0) {
+               /* bus */
                return;
        }
 
-       AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(&clicked_regionview->get_time_axis_view());
-
-       if (!atv) {
+       if (&tv == &basis->get_time_axis_view()) {
+               /* looking in same track as the original */
                return;
        }
 
-       RouteGroup* group = atv->route().edit_group();
-       vector<AudioRegionView*> all_equivalent_regions;
        
-       if (group && group->is_active()) {
+       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);
+               }
+       }
+}
 
-               for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
+bool
+Editor::set_selected_regionview_from_click (bool press, Selection::Operation op, bool no_track_remove)
+{
+       vector<RegionView*> all_equivalent_regions;
+       bool commit = false;
 
-                       AudioTimeAxisView* tatv;
+       if (!clicked_regionview || !clicked_audio_trackview) {
+               return false;
+       }
 
-                       if ((tatv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
+       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) {
 
-                               if (tatv->route().edit_group() != group) {
-                                       continue;
-                               }
+                                       /* whatever was clicked was selected already; do nothing here but allow
+                                          the button release to deselect it
+                                       */
+
+                                       button_release_can_deselect = true;
+
+                               } else {
+
+                                       if (button_release_can_deselect) {
+
+                                               /* just remove this one region, but only on a permitted button release */
+
+                                               selection->remove (clicked_regionview);
+                                               commit = true;
+
+                                               /* no more deselect action on button release till a new press
+                                                  finds an already selected object.
+                                               */
+
+                                               button_release_can_deselect = false;
+                                       }
+                               } 
+
+                       } else {
+
+                               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;
                        
-                               AudioPlaylist* pl;
-                               vector<AudioRegion*> results;
-                               AudioRegionView* marv;
-                               DiskStream* ds;
-                               
-                               if ((ds = tatv->get_diskstream()) == 0) {
-                                       /* bus */
-                                       continue;
-                               }
-                               
-                               if ((pl = ds->playlist()) != 0) {
-                                       pl->get_equivalent_regions (clicked_regionview->region, 
-                                                                   results);
+               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;
+
+               default:
+                       /* silly compiler */
+                       break;
+               }
+
+       } else if (op == Selection::Extend) {
+
+               list<Selectable*> results;
+               jack_nframes_t last_frame;
+               jack_nframes_t first_frame;
+
+               /* 1. find the last selected regionview in the track that was clicked in */
+
+               last_frame = 0;
+               first_frame = max_frames;
+
+               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 ((*x)->region().last_frame() > last_frame) {
+                                       last_frame = (*x)->region().last_frame();
                                }
-                               
-                               for (vector<AudioRegion*>::iterator ir = results.begin(); ir != results.end(); ++ir) {
-                                       if ((marv = tatv->view->find_view (**ir)) != 0) {
-                                               all_equivalent_regions.push_back (marv);
-                                       }
+
+                               if ((*x)->region().first_frame() < first_frame) {
+                                       first_frame = (*x)->region().first_frame();
                                }
-                               
                        }
                }
 
-       } else {
+               /* 2. figure out the boundaries for our search for new objects */
 
-               all_equivalent_regions.push_back (clicked_regionview);
+               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;
 
-       }
-       
-       begin_reversible_command (_("set selected regionview"));
-       
-       if (add) {
+                       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 (clicked_regionview->get_selected()) {
-                       if (group && group->is_active() && selection->audio_regions.size() > 1) {
-                               /* reduce selection down to just the one clicked */
-                               selection->set (clicked_regionview);
+               case OverlapExternal:
+                       cerr << "external overlap, first = " << first_frame << " last = " << last_frame << " region = " 
+                            << clicked_regionview->region().first_frame() << " .. " << clicked_regionview->region().last_frame() << endl;
+
+                       if (last_frame < clicked_regionview->region().first_frame()) {
+                               first_frame = last_frame;
+                               last_frame = clicked_regionview->region().last_frame();
                        } else {
-                               selection->remove (clicked_regionview);
+                               last_frame = first_frame;
+                               first_frame = clicked_regionview->region().first_frame();
                        }
-               } else {
-                       selection->add (all_equivalent_regions);
+                       break;
+
+               case OverlapInternal:
+                       cerr << "internal overlap, first = " << first_frame << " last = " << last_frame << " region = " 
+                            << clicked_regionview->region().first_frame() << " .. " << clicked_regionview->region().last_frame() << endl;
+
+                       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;
+
+               case OverlapStart:
+               case OverlapEnd:
+                       /* nothing to do except add clicked region to selection, since it
+                          overlaps with the existing selection in this track.
+                       */
+                       break;
                }
 
-               set_selected_track_from_click (add, false, no_track_remove);
+               /* 2. find all selectable objects (regionviews in this case) between that one and the end of the
+                     one that was clicked.
+               */
+
+               set<AudioTimeAxisView*> relevant_tracks;
                
-       } else {
+               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);
+               }
+               
+               /* 3. convert to a vector of audio regions */
 
-               // karsten wiese suggested these two lines to make
-               // a selected region rise to the top. but this
-               // leads to a mismatch between actual layering
-               // and visual layering. resolution required ....
-               //
-               // gnome_canvas_item_raise_to_top (clicked_regionview->get_canvas_group());
-               // gnome_canvas_item_raise_to_top (clicked_regionview->get_time_axis_view().canvas_display);
+               vector<RegionView*> regions;
+               
+               for (list<Selectable*>::iterator x = results.begin(); x != results.end(); ++x) {
+                       RegionView* arv;
 
-               if (clicked_regionview->get_selected()) {
-                       /* no commit necessary: we are the one selected. */
-                       return;
+                       if ((arv = dynamic_cast<RegionView*>(*x)) != 0) {
+                               regions.push_back (arv);
+                       }
+               }
 
-               } else {
-                       
-                       selection->set (all_equivalent_regions);
-                       set_selected_track_from_click (add, false, false);
+               if (!regions.empty()) {
+                       selection->add (regions);
+                       commit = true;
                }
        }
 
-       commit_reversible_command () ;
+  out:
+       return commit;
 }
 
 void
-Editor::set_selected_regionview_from_region_list (Region& r, bool add)
+Editor::set_selected_regionview_from_region_list (Region& region, Selection::Operation op)
 {
-       vector<AudioRegionView*> all_equivalent_regions;
-       AudioRegion* region;
-
-       if ((region = dynamic_cast<AudioRegion*>(&r)) == 0) {
-               return;
-       }
+       vector<RegionView*> all_equivalent_regions;
 
        for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
                
-               AudioTimeAxisView* tatv;
+               RouteTimeAxisView* tatv;
                
-               if ((tatv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
+               if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
                        
-                       AudioPlaylist* pl;
-                       vector<AudioRegion*> results;
-                       AudioRegionView* marv;
-                       DiskStream* ds;
+                       Playlist* pl;
+                       vector<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);
+                       if ((pl = dynamic_cast<Playlist*>(ds->playlist())) != 0) {
+                               pl->get_region_list_equivalent_regions (region, results);
                        }
                        
-                       for (vector<AudioRegion*>::iterator ir = results.begin(); ir != results.end(); ++ir) {
-                               if ((marv = tatv->view->find_view (**ir)) != 0) {
+                       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);
                                }
                        }
@@ -3190,13 +3268,17 @@ Editor::set_selected_regionview_from_region_list (Region& r, bool add)
        
        begin_reversible_command (_("set selected regions"));
        
-       if (add) {
-
-               selection->add (all_equivalent_regions);
-               
-       } else {
-
+       switch (op) {
+       case Selection::Toggle:
+               /* XXX this is not correct */
+               selection->toggle (all_equivalent_regions);
+               break;
+       case Selection::Set:
                selection->set (all_equivalent_regions);
+               break;
+       case Selection::Extend:
+               selection->add (all_equivalent_regions);
+               break;
        }
 
        commit_reversible_command () ;
@@ -3205,10 +3287,10 @@ Editor::set_selected_regionview_from_region_list (Region& r, bool add)
 bool
 Editor::set_selected_regionview_from_map_event (GdkEventAny* ev, StreamView* sv, Region* r)
 {
-       AudioRegionView* rv;
-       AudioRegion* ar;
+       RegionView* rv;
+       Region* ar;
 
-       if ((ar = dynamic_cast<AudioRegion*> (r)) == 0) {
+       if ((ar = dynamic_cast<Region*> (r)) == 0) {
                return TRUE;
        }
 
@@ -3220,7 +3302,7 @@ Editor::set_selected_regionview_from_map_event (GdkEventAny* ev, StreamView* sv,
           a single other region.
        */
 
-       if (selection->audio_regions.size() > 1) {
+       if (selection->regions.size() > 1) {
                return TRUE;
        }
        
@@ -3328,21 +3410,14 @@ Editor::edit_menu_map_handler (GdkEventAny* ev)
        import_menu->set_name ("ArdourContextMenu");
        MenuList& import_items = import_menu->items();
        
-       import_items.push_back (MenuElem (_("... as new track"), bind (mem_fun(*this, &Editor::import_audio), true)));
-       import_items.push_back (MenuElem (_("... as new region"), bind (mem_fun(*this, &Editor::import_audio), false)));
-
-       Menu* embed_menu = manage (new Menu());
-       embed_menu->set_name ("ArdourContextMenu");
-       MenuList& embed_items = embed_menu->items();
-
-       embed_items.push_back (MenuElem (_("... as new track"), bind (mem_fun(*this, &Editor::insert_sndfile), true)));
-       embed_items.push_back (MenuElem (_("... as new region"), mem_fun(*this, &Editor::embed_audio)));
+       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 (MenuElem (_("Embed audio (link)"), *embed_menu));
        edit_items.push_back (SeparatorElem());
 
        edit_items.push_back (MenuElem (_("Remove last capture"), mem_fun(*this, &Editor::remove_last_capture)));
+
        if (!session->have_captured()) {
                edit_items.back().set_sensitive (false);
        }
@@ -3372,16 +3447,13 @@ Editor::duplicate_dialog (bool dup_region)
        win.add_button (Stock::OK, RESPONSE_ACCEPT);
        win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
 
-       win.set_position (Gtk::WIN_POS_MOUSE);
+       win.set_position (WIN_POS_MOUSE);
 
        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 ();
 
-        // GTK2FIX
-       // win.get_window()->set_decorations (Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH));
-
 
        switch (win.run ()) {
        case RESPONSE_ACCEPT:
@@ -3395,7 +3467,7 @@ Editor::duplicate_dialog (bool dup_region)
 
        if (sscanf (text.c_str(), "%f", &times) == 1) {
                if (dup_region) {
-                       AudioRegionSelection regions;
+                       RegionSelection regions;
                        regions.add (clicked_regionview);
                        duplicate_some_regions (regions, times);
                } else {
@@ -3420,7 +3492,7 @@ Editor::hide_verbose_canvas_cursor ()
 }
 
 void
-Editor::set_verbose_canvas_cursor (stringcr_t txt, double x, double y)
+Editor::set_verbose_canvas_cursor (const string & txt, double x, double y)
 {
        /* XXX get origin of canvas relative to root window,
           add x and y and check compared to gdk_screen_{width,height}
@@ -3431,7 +3503,7 @@ Editor::set_verbose_canvas_cursor (stringcr_t txt, double x, double y)
 }
 
 void
-Editor::set_verbose_canvas_cursor_text (stringcr_t txt)
+Editor::set_verbose_canvas_cursor_text (const string & txt)
 {
        verbose_canvas_cursor->property_text() = txt.c_str();
 }
@@ -3446,9 +3518,9 @@ Editor::edit_mode_selection_done ()
        string choice = edit_mode_selector.get_active_text();
        EditMode mode = Slide;
 
-       if (choice == _("Splice")) {
+       if (choice == _("Splice Edit")) {
                mode = Splice;
-       } else if (choice == _("Slide")) {
+       } else if (choice == _("Slide Edit")) {
                mode = Slide;
        }
 
@@ -3464,18 +3536,18 @@ Editor::snap_type_selection_done ()
 
        string choice = snap_type_selector.get_active_text();
        SnapType snaptype = SnapToFrame;
-       
+
        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 = 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;
@@ -3503,10 +3575,10 @@ Editor::snap_type_selection_done ()
                snaptype = SnapToSeconds;
        } else if (choice == _("Minutes")) {
                snaptype = SnapToMinutes;
-        } else if (choice == _("None")) {
+       } else if (choice == _("None")) {
                snaptype = SnapToFrame;
        }
-       
+
        set_snap_to (snaptype);
 }      
 
@@ -3520,9 +3592,9 @@ Editor::snap_mode_selection_done ()
        string choice = snap_mode_selector.get_active_text();
        SnapMode mode = SnapNormal;
 
-       if (choice == _("Normal")) {
+       if (choice == _("Normal Snap")) {
                mode = SnapNormal;
-       } else if (choice == _("Magnetic")) {
+       } else if (choice == _("Magnetic Snap")) {
                mode = SnapMagnetic;
        }
 
@@ -3539,15 +3611,15 @@ Editor::zoom_focus_selection_done ()
        string choice = zoom_focus_selector.get_active_text();
        ZoomFocus focus_type = ZoomFocusLeft;
 
-       if (choice == _("Left")) {
+       if (choice == _("Focus Left")) {
                focus_type = ZoomFocusLeft;
-       } else if (choice == _("Right")) {
+       } else if (choice == _("Focus Right")) {
                focus_type = ZoomFocusRight;
-       } else if (choice == _("Center")) {
+       } else if (choice == _("Focus Center")) {
                focus_type = ZoomFocusCenter;
-        } else if (choice == _("Playhead")) {
+       } else if (choice == _("Focus Playhead")) {
                focus_type = ZoomFocusPlayhead;
-        } else if (choice == _("Edit Cursor")) {
+       } else if (choice == _("Focus Edit Cursor")) {
                focus_type = ZoomFocusEdit;
        } 
 
@@ -3605,13 +3677,19 @@ Editor::time_selection_changed ()
                        (*i)->show_selection (selection->time);
                }
        }
+
+       if (selection->time.empty()) {
+               ActionManager::set_sensitive (ActionManager::time_selection_sensitive_actions, false);
+       } else {
+               ActionManager::set_sensitive (ActionManager::time_selection_sensitive_actions, true);
+       }
 }
 
 void
 Editor::region_selection_changed ()
 {
        for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-               (*i)->set_selected_regionviews (selection->audio_regions);
+               (*i)->set_selected_regionviews (selection->regions);
        }
 }
 
@@ -3676,10 +3754,12 @@ Editor::get_valid_views (TimeAxisView* track, RouteGroup* group)
 void
 Editor::set_zoom_focus (ZoomFocus f)
 {
+       vector<string> txt = internationalize (zoom_focus_strings);
+       zoom_focus_selector.set_active_text (txt[(int)f]);
+       
        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 */
 
                instant_save ();
@@ -3693,7 +3773,7 @@ Editor::ensure_float (Window& win)
 }
 
 void 
-Editor::pane_allocation_handler (Gtk::Allocation &alloc, Gtk::Paned* which)
+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.
@@ -3704,7 +3784,7 @@ Editor::pane_allocation_handler (Gtk::Allocation &alloc, Gtk::Paned* which)
        char buf[32];
        XMLNode* node = ARDOUR_UI::instance()->editor_settings();
        int width, height;
-       static int32_t done[4] = { 0, 0, 0, 0 };
+       static int32_t done;
        XMLNode* geometry;
 
        if ((geometry = find_named_node (*node, "geometry")) == 0) {
@@ -3715,38 +3795,38 @@ Editor::pane_allocation_handler (Gtk::Allocation &alloc, Gtk::Paned* which)
                height = atoi(geometry->property("y_size")->value());
        }
 
-       if (which == static_cast<Gtk::Paned*> (&edit_pane)) {
+       if (which == static_cast<Paned*> (&edit_pane)) {
 
-               if (done[0]) {
+               if (done) {
                        return;
                }
 
                if (!geometry || (prop = geometry->property ("edit_pane_pos")) == 0) {
-                       pos = 75;
+                       /* 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 ((done[0] = GTK_WIDGET(edit_pane.gobj())->allocation.width > pos)) {
+               
+               if ((done = GTK_WIDGET(edit_pane.gobj())->allocation.width > pos)) {
                        edit_pane.set_position (pos);
+                       pre_maximal_pane_position = pos;
                }
        }
 }
 
 void
-Editor::detach_tearoff (Gtk::Box* b, Gtk::Window* w)
+Editor::detach_tearoff (Box* b, Window* w)
 {
        if (tools_tearoff->torn_off() && 
            mouse_mode_tearoff->torn_off()) {
                top_hbox.remove (toolbar_frame);
        }
-       
-       ensure_float (*w);
 }
 
 void
-Editor::reattach_tearoff (Gtk::Box* b, Gtk::Window* w, int32_t n)
+Editor::reattach_tearoff (Box* b, Window* w, int32_t n)
 {
        if (toolbar_frame.get_parent() == 0) {
                top_hbox.pack_end (toolbar_frame);
@@ -3767,6 +3847,16 @@ Editor::set_show_measures (bool yn)
        }
 }
 
+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)
 {
@@ -3799,9 +3889,6 @@ Editor::edit_xfade (Crossfade* xfade)
                
        ensure_float (cew);
        
-       // GTK2FIX
-       // cew.signal_delete_event().connect (mem_fun (cew, &ArdourDialog::wm_doi_event_stop));
-
        switch (cew.run ()) {
        case RESPONSE_ACCEPT:
                break;
@@ -3834,7 +3921,7 @@ void
 Editor::end_location_changed (Location* location)
 {
        ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::end_location_changed), location));
-       horizontal_adjustment.set_upper (location->end() / frames_per_unit);
+       reset_scrolling_region ();
 }
 
 int
@@ -3846,7 +3933,7 @@ Editor::playlist_deletion_dialog (Playlist* pl)
                                 "If deleted, audio files used by it alone by will cleaned."),
                               pl->name()));
 
-       dialog.set_position (Gtk::WIN_POS_CENTER);
+       dialog.set_position (WIN_POS_CENTER);
        dialog.get_vbox()->pack_start (label);
 
        dialog.add_button (_("Delete playlist"), RESPONSE_ACCEPT);
@@ -3874,8 +3961,8 @@ Editor::playlist_deletion_dialog (Playlist* pl)
 bool
 Editor::audio_region_selection_covers (jack_nframes_t where)
 {
-       for (AudioRegionSelection::iterator a = selection->audio_regions.begin(); a != selection->audio_regions.end(); ++a) {
-               if ((*a)->region.covers (where)) {
+       for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
+               if ((*a)->region().covers (where)) {
                        return true;
                }
        }
@@ -3886,25 +3973,13 @@ Editor::audio_region_selection_covers (jack_nframes_t where)
 void
 Editor::prepare_for_cleanup ()
 {
-       cut_buffer->clear_audio_regions ();
+       cut_buffer->clear_regions ();
        cut_buffer->clear_playlists ();
 
-       selection->clear_audio_regions ();
+       selection->clear_regions ();
        selection->clear_playlists ();
 }
 
-void
-Editor::init_colormap ()
-{
-       for (size_t x = 0; x < sizeof (color_id_strs) / sizeof (color_id_strs[0]); ++x) {
-               pair<ColorID,int> newpair;
-               
-               newpair.first = (ColorID) x;
-               newpair.second = rgba_from_style (enum2str (newpair.first), 0, 0, 0, 255);
-               color_map.insert (newpair);
-       }
-}
-
 Location*
 Editor::transport_loop_location()
 {
@@ -3925,11 +4000,201 @@ Editor::transport_punch_location()
        }
 }
 
+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;
+       }
+
+       return false;
+}
+
+void
+Editor::snapshot_display_selection_changed ()
+{
+       if (snapshot_display.get_selection()->count_selected_rows() > 0) {
+
+               TreeModel::iterator i = snapshot_display.get_selection()->get_selected();
+               
+               Glib::ustring snap_name = (*i)[snapshot_display_columns.real_name];
+
+               if (snap_name.length() == 0) {
+                       return;
+               }
+               
+               if (session->snap_name() == snap_name) {
+                       return;
+               }
+               
+               ARDOUR_UI::instance()->load_session(session->path(), string (snap_name));
+       }
+}
+
+bool
+Editor::snapshot_display_button_press (GdkEventButton* ev)
+{
+        return false;
+}
+
+void
+Editor::redisplay_snapshots ()
+{
+       if (session == 0) {
+               return;
+       }
+
+       vector<string*>* states;
+
+       if ((states = session->possible_states()) == 0) {
+               return;
+       }
+
+       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;
+       }
+
+       delete states;
+}
+
+void
+Editor::session_state_saved (string snap_name)
+{
+       ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::session_state_saved), snap_name));
+       redisplay_snapshots ();
+}
+
+void
+Editor::maximise_editing_space ()
+{
+       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());
+
+       fullscreen();
+}
+
+void
+Editor::restore_editing_space ()
+{
+       mouse_mode_tearoff->set_visible (true);
+       tools_tearoff->set_visible (true);
+       edit_pane.set_position (pre_maximal_pane_position);
+
+       unfullscreen();
+}
+
+void 
+Editor::new_playlists ()
+{
+       begin_reversible_command (_("new playlists"));
+       mapover_audio_tracks (mem_fun (*this, &Editor::mapped_use_new_playlist));
+       commit_reversible_command ();
+}
+
+void
+Editor::copy_playlists ()
+{
+       begin_reversible_command (_("copy playlists"));
+       mapover_audio_tracks (mem_fun (*this, &Editor::mapped_use_copy_playlist));
+       commit_reversible_command ();
+}
+
+void 
+Editor::clear_playlists ()
+{
+       begin_reversible_command (_("clear playlists"));
+       mapover_audio_tracks (mem_fun (*this, &Editor::mapped_clear_playlist));
+       commit_reversible_command ();
+}
+
+void 
+Editor::mapped_use_new_playlist (AudioTimeAxisView& atv, uint32_t sz)
+{
+       atv.use_new_playlist (sz > 1 ? false : true);
+}
+
+void
+Editor::mapped_use_copy_playlist (AudioTimeAxisView& atv, uint32_t sz)
+{
+       atv.use_copy_playlist (sz > 1 ? false : true);
+}
+
+void 
+Editor::mapped_clear_playlist (AudioTimeAxisView& atv, uint32_t sz)
+{
+       atv.clear_playlist ();
+}
+
+bool
+Editor::on_key_press_event (GdkEventKey* ev)
+{
+       return key_press_focus_accelerator_handler (*this, ev);
+}
+
+void
+Editor::update_layering_model ()
+{
+       RefPtr<Action> act;
+
+       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;
+       }
+
+       if (act) {
+               RefPtr<RadioAction> ract = RefPtr<RadioAction>::cast_dynamic(act);
+               if (ract && !ract->get_active()) {
+                       ract->set_active (true);
+               }
+       }
+}
+
+
 void
-Editor::set_layout_width(Gtk::Requisition *r)
+Editor::update_crossfade_model ()
 {
-       edit_controls_vbox.check_resize();
-       int w = edit_controls_vbox.get_width();
-       cerr << "set_layout_width() called w = " << w << endl;
-       controls_layout.set_size_request (w, -1);
+       RefPtr<Action> act;
+
+       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;
+       }
+
+       if (act) {
+               RefPtr<RadioAction> ract = RefPtr<RadioAction>::cast_dynamic(act);
+               if (ract && !ract->get_active()) {
+                       ract->set_active (true);
+               }
+       }
 }
+