pulling trunk
[ardour.git] / gtk2_ardour / editor.cc
index 0f62f48c2a597c9297482306b4eef17ce17c9394..c7956386ced6848b3058a29d7e9122f12b3c9bbc 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
@@ -26,8 +26,7 @@
 
 #include <sigc++/bind.h>
 
-#include <libgnomecanvasmm/init.h>
-
+#include <pbd/convert.h>
 #include <pbd/error.h>
 
 #include <gtkmm/image.h>
@@ -49,8 +48,9 @@
 #include <ardour/tempo.h>
 #include <ardour/utils.h>
 
+#include "control_protocol.h"
+
 #include "ardour_ui.h"
-#include "check_mark.h"
 #include "editor.h"
 #include "grouped_buttons.h"
 #include "keyboard.h"
@@ -60,7 +60,6 @@
 #include "rgb_macros.h"
 #include "selection.h"
 #include "streamview.h"
-#include "simpleline.h"
 #include "time_axis_view.h"
 #include "utils.h"
 #include "crossfade_view.h"
 #include "crossfade_edit.h"
 #include "audio_time_axis.h"
 #include "canvas_impl.h"
+#include "actions.h"
 #include "gui_thread.h"
 
+#ifdef FFT_ANALYSIS
+#include "analysis_window.h"
+#endif
+
 #include "i18n.h"
 
 /* <CMT Additions> */
@@ -85,9 +89,9 @@ using namespace Glib;
 using namespace Gtkmm2ext;
 using namespace Editing;
 
-/* XXX this is a hack. it ought to be the maximum value of an jack_nframes_t */
+using PBD::internationalize;
+using PBD::atoi;
 
-const double max_canvas_coordinate = 100000000.0;
 const double Editor::timebar_height = 15.0;
 
 #include "editor_xpms"
@@ -150,14 +154,28 @@ Gdk::Cursor* Editor::zoom_cursor = 0;
 Gdk::Cursor* Editor::time_fx_cursor = 0;
 Gdk::Cursor* Editor::fader_cursor = 0;
 Gdk::Cursor* Editor::speaker_cursor = 0;
-Gdk::Cursor* Editor::null_cursor = 0;
 Gdk::Cursor* Editor::wait_cursor = 0;
 Gdk::Cursor* Editor::timebar_cursor = 0;
 
-GdkPixmap *Editor::check_pixmap = 0;
-GdkBitmap *Editor::check_mask = 0;
-GdkPixmap *Editor::empty_pixmap = 0;
-GdkBitmap *Editor::empty_mask = 0;
+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),
@@ -175,12 +193,15 @@ Editor::Editor (AudioEngine& eng)
          transport_mark_label (_("Loop/Punch Ranges")),
 
          edit_packer (3, 3, false),
-         edit_hscroll_left_arrow (Gtk::ARROW_LEFT, Gtk::SHADOW_OUT),
-         edit_hscroll_right_arrow (Gtk::ARROW_RIGHT, Gtk::SHADOW_OUT),
 
-         /* tool bar related */
+         /* the values here don't matter: layout widgets
+            reset them as needed.
+         */
 
-         editor_mixer_button (_("editor\nmixer")),
+         vertical_adjustment (0.0, 0.0, 10.0, 400.0),
+         horizontal_adjustment (0.0, 0.0, 20.0, 1200.0),
+
+         /* tool bar related */
 
          selection_start_clock (X_("SelectionStartClock"), true),
          selection_end_clock (X_("SelectionEndClock"), true),
@@ -222,15 +243,6 @@ Editor::Editor (AudioEngine& eng)
 
        PublicEditor::_instance = this;
 
-       init_colormap ();
-
-       check_pixmap = gdk_pixmap_colormap_create_from_xpm_d (NULL, 
-                                                             gtk_widget_get_colormap (GTK_WIDGET(edit_group_list.gobj())),
-                                                             &check_mask, NULL, (gchar **) check_xpm);
-       empty_pixmap = gdk_pixmap_colormap_create_from_xpm_d (NULL, 
-                                                             gtk_widget_get_colormap (GTK_WIDGET(edit_group_list.gobj())),
-                                                             &empty_mask, NULL, (gchar **) empty_xpm);
-
        session = 0;
 
        selection = new Selection;
@@ -263,6 +275,11 @@ 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;
@@ -272,31 +289,32 @@ 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;
        editor_ruler_menu = 0;
        no_ruler_shown_update = false;
+       edit_hscroll_dragging = false;
        edit_group_list_menu = 0;
        route_list_menu = 0;
        region_list_menu = 0;
        marker_menu = 0;
+       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;
-       edit_hscroll_dragging = false;
        leftmost_frame = 0;
        ignore_mouse_mode_toggle = false;
        current_stepping_trackview = 0;
@@ -305,9 +323,11 @@ 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];
@@ -318,52 +338,43 @@ 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;
        zoom_range_clock.ValueChanged.connect (mem_fun(*this, &Editor::zoom_adjustment_changed));
 
        initialize_rulers ();
        initialize_canvas ();
 
-       track_canvas_scroller.add (track_canvas);
-       track_canvas_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_NEVER);
-       track_canvas_scroller.set_name ("TrackCanvasScroller");
-
-       track_canvas_scroller.get_vadjustment()->signal_value_changed().connect (mem_fun(*this, &Editor::tie_vertical_scrolling));
-       track_canvas_scroller.get_vadjustment()->set_step_increment (10.0);
-
-       track_canvas_scroller.get_hadjustment()->set_lower (0.0);
-       track_canvas_scroller.get_hadjustment()->set_upper (1200.0);
-       track_canvas_scroller.get_hadjustment()->set_step_increment (20.0);
-       track_canvas_scroller.get_hadjustment()->signal_value_changed().connect (mem_fun(*this, &Editor::canvas_horizontally_scrolled));
+       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));
        
-       edit_vscrollbar.set_adjustment(*track_canvas_scroller.get_vadjustment());
-       edit_hscrollbar.set_adjustment(*track_canvas_scroller.get_hadjustment());
+       track_canvas.set_hadjustment (horizontal_adjustment);
+       track_canvas.set_vadjustment (vertical_adjustment);
+       time_canvas.set_hadjustment (horizontal_adjustment);
 
-       edit_hscrollbar.signal_button_press_event().connect (mem_fun(*this, &Editor::hscroll_slider_button_press));
-       edit_hscrollbar.signal_button_release_event().connect (mem_fun(*this, &Editor::hscroll_slider_button_release));
-       edit_hscrollbar.signal_size_allocate().connect (mem_fun(*this, &Editor::hscroll_slider_allocate));
+       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));
        
-       time_canvas_scroller.add (time_canvas);
-       time_canvas_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_NEVER);
-       time_canvas_scroller.set_hadjustment (*track_canvas_scroller.get_hadjustment());
-       time_canvas_scroller.set_name ("TimeCanvasScroller");
-
-       edit_controls_vbox.set_spacing (track_spacing);
-       edit_controls_hbox.pack_start (edit_controls_vbox, true, true);
-       edit_controls_scroller.add (edit_controls_hbox);
-       edit_controls_scroller.set_name ("EditControlsBase");
-       edit_controls_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_NEVER);
+       controls_layout.add (edit_controls_vbox);
+       controls_layout.set_name ("EditControlsBase");
+       controls_layout.add_events (Gdk::SCROLL_MASK);
+       controls_layout.signal_scroll_event().connect (mem_fun(*this, &Editor::control_layout_scroll), false);
+       
+       controls_layout.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
+       controls_layout.signal_button_release_event().connect (mem_fun(*this, &Editor::edit_controls_button_release));
+       controls_layout.signal_size_request().connect (mem_fun (*this, &Editor::controls_layout_size_request));
 
-       Viewport* viewport = static_cast<Viewport*> (edit_controls_scroller.get_child());
+       edit_vscrollbar.set_adjustment (vertical_adjustment);
+       edit_hscrollbar.set_adjustment (horizontal_adjustment);
 
-       viewport->set_shadow_type (Gtk::SHADOW_NONE);
-       viewport->set_name ("EditControlsBase");
-       viewport->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
-       viewport->signal_button_release_event().connect (mem_fun(*this, &Editor::edit_controls_button_release));
+       edit_hscrollbar.signal_button_press_event().connect (mem_fun(*this, &Editor::hscrollbar_button_press));
+       edit_hscrollbar.signal_button_release_event().connect (mem_fun(*this, &Editor::hscrollbar_button_release));
+       edit_hscrollbar.signal_size_allocate().connect (mem_fun(*this, &Editor::hscrollbar_allocate));
 
        build_cursors ();
        setup_toolbar ();
@@ -374,7 +385,7 @@ Editor::Editor (AudioEngine& eng)
        time_canvas_vbox.pack_start (*smpte_ruler, false, false);
        time_canvas_vbox.pack_start (*frames_ruler, false, false);
        time_canvas_vbox.pack_start (*bbt_ruler, false, false);
-       time_canvas_vbox.pack_start (time_canvas_scroller, true, true);
+       time_canvas_vbox.pack_start (time_canvas, true, true);
        time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars));
 
        bbt_label.set_name ("EditorTimeButton");
@@ -432,249 +443,258 @@ Editor::Editor (AudioEngine& eng)
           for the canvas areas.
        */
 
-       track_canvas_event_box.add (track_canvas_scroller);
+       track_canvas_event_box.add (track_canvas);
 
        time_canvas_event_box.add (time_canvas_vbox);
        time_canvas_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
-
        
        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_hscroll_left_arrow_event,  0, 1, 0, 1,    Gtk::FILL,  0, 0, 0);
-//     edit_packer.attach (edit_hscroll_slider,            1, 2, 0, 1,    Gtk::FILL|Gtk::EXPAND,  0, 0, 0);
-//     edit_packer.attach (edit_hscroll_right_arrow_event, 2, 3, 0, 1,    Gtk::FILL,  0, 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 (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);
 
-       edit_packer.attach (edit_controls_scroller,         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_packer.attach (controls_layout,         1, 2, 1, 2,    FILL,        FILL|EXPAND, 0, 0);
+       edit_packer.attach (track_canvas_event_box,  2, 3, 1, 2,    FILL|EXPAND, FILL|EXPAND, 0, 0);
 
-       edit_frame.set_name ("BaseFrame");
-       edit_frame.set_shadow_type (SHADOW_IN);
-       edit_frame.add (edit_packer);
+       edit_packer.attach (edit_hscrollbar,         2, 3, 2, 3,    FILL|EXPAND,  FILL, 0, 0);
 
        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_onetoone_button.set_name ("EditorTimeButton");
        zoom_out_full_button.set_name ("EditorTimeButton");
-//     ARDOUR_UI::instance()->tooltips().set_tip (zoom_onetoone_button, _("Zoom in 1:1"));
        ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_full_button, _("Zoom to session"));
 
-       zoom_in_button.add (*(manage (new Gtk::Image (Gdk::Pixbuf::create_from_xpm_data(zoom_in_button_xpm)))));
-       zoom_out_button.add (*(manage (new Gtk::Image (Gdk::Pixbuf::create_from_xpm_data(zoom_out_button_xpm)))));
-       zoom_out_full_button.add (*(manage (new Gtk::Image (Gdk::Pixbuf::create_from_xpm_data(zoom_out_full_button_xpm)))));
-//     zoom_onetoone_button.add (*(manage (new Gtk::Image (zoom_onetoone_button_xpm))));
-
+       zoom_in_button.add (*(manage (new Image (Stock::ZOOM_IN, ICON_SIZE_BUTTON))));
+       zoom_out_button.add (*(manage (new Image (Stock::ZOOM_OUT, ICON_SIZE_BUTTON))));
+       zoom_out_full_button.add (*(manage (new 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_onetoone_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom), 1.0));
        
        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_onetoone_button, 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");
 
-
        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);
 
-
        bottom_hbox.set_border_width (3);
        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);
 
-       route_list_scroller.add (route_list);
-       route_list_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
+       /* name is directly editable */
 
-       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));
+       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));
 
-       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");
+       /* use checkbox for the active + visible columns */
 
-       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));
-
-       /* use checkbox for the active column */
-
-       CellRendererToggle *active_cell = dynamic_cast<CellRendererToggle*>(edit_group_list.get_column_cell_renderer (0));
-       active_cell->set_property ("activatable", true);
-       active_cell->set_property ("radio", false);
-
-       edit_group_list.set_name ("MixerGroupList");
-       //edit_group_list.set_shadow_type (Gtk::SHADOW_IN);
-       route_list.set_headers_visible (false);
-       edit_group_list.set_reorderable (false);
-       edit_group_list.set_size_request (75, -1);
-       edit_group_list.columns_autosize ();
-       edit_group_list.get_selection()->set_mode (Gtk::SELECTION_MULTIPLE);
-
-       edit_group_list_scroller.add (edit_group_list);
-       edit_group_list_scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
-
-       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));
-       
-       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;
-
-       stupid_list.push_back ("*");
-       stupid_list.push_back (_("-all-"));
-
-       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);
-       
-       route_list_frame.set_name ("BaseFrame");
-       route_list_frame.set_shadow_type (Gtk::SHADOW_IN);
-       route_list_frame.add (route_list_scroller);
+       CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(edit_group_display.get_column_cell_renderer (1));
+       active_cell->property_activatable() = true;
+       active_cell->property_radio() = false;
+
+       active_cell = dynamic_cast<CellRendererToggle*>(edit_group_display.get_column_cell_renderer (1));
+       active_cell->property_activatable() = true;
+       active_cell->property_radio() = false;
+
+       edit_group_display.set_name ("EditGroupList");
+
+       group_model->signal_row_changed().connect (mem_fun (*this, &Editor::edit_group_row_change));
+
+       edit_group_display.set_name ("EditGroupList");
+       edit_group_display.get_selection()->set_mode (SELECTION_SINGLE);
+       edit_group_display.set_reorderable (false);
+       edit_group_display.set_rules_hint (true);
+       edit_group_display.set_size_request (75, -1);
+
+       edit_group_display_scroller.add (edit_group_display);
+       edit_group_display_scroller.set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
+
+       edit_group_display.signal_button_press_event().connect (mem_fun(*this, &Editor::edit_group_list_button_press_event), false);
+
+       VBox* edit_group_display_packer = manage (new VBox());
+       HButtonBox* edit_group_display_button_box = manage (new HButtonBox());
+       edit_group_display_button_box->set_homogeneous (true);
+
+       Button* edit_group_add_button = manage (new Button ());
+       Button* edit_group_remove_button = manage (new Button ());
+
+       Widget* w;
+
+       w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
+       w->show();
+       edit_group_add_button->add (*w);
 
-       edit_group_list_frame.set_name ("BaseFrame");
-       edit_group_list_frame.set_shadow_type (Gtk::SHADOW_IN);
-       edit_group_list_frame.add (edit_group_vbox);
+       w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
+       w->show();
+       edit_group_remove_button->add (*w);
 
-       route_group_vpane.add1 (route_list_frame);
-       route_group_vpane.add2 (edit_group_list_frame);
+       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));
+       
+       edit_group_display_button_box->pack_start (*edit_group_add_button);
+       edit_group_display_button_box->pack_start (*edit_group_remove_button);
+
+       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);
 
-       list_vpacker.pack_start (route_group_vpane, true, true);
+       region_list_display.set_size_request (100, -1);
+       region_list_display.set_name ("RegionListDisplay");
 
        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 (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.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
-       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));
 
-       region_selection_vpane.pack1 (region_list_scroller, true, true);
-       region_selection_vpane.pack2 (named_selection_scroller, true, true);
-
-       canvas_region_list_pane.pack1 (edit_frame, true, true);
-       canvas_region_list_pane.pack2 (region_selection_vpane, true, true);
-
-       track_list_canvas_pane.signal_size_allocate().connect_notify (bind (mem_fun(*this, &Editor::pane_allocation_handler),
-                                                                           static_cast<Gtk::Paned*> (&track_list_canvas_pane)));
-       canvas_region_list_pane.signal_size_allocate().connect_notify (bind (mem_fun(*this, &Editor::pane_allocation_handler),
-                                                                   static_cast<Gtk::Paned*> (&canvas_region_list_pane)));
-       route_group_vpane.signal_size_allocate().connect_notify (bind (mem_fun(*this, &Editor::pane_allocation_handler),
-                                                             static_cast<Gtk::Paned*> (&route_group_vpane)));
-       region_selection_vpane.signal_size_allocate().connect_notify (bind (mem_fun(*this, &Editor::pane_allocation_handler),
-                                                                  static_cast<Gtk::Paned*> (&region_selection_vpane)));
+       /* 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);
+
+       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.pack1 (edit_packer, true, true);
+       edit_pane.pack2 (the_notebook, false, true);
        
-       track_list_canvas_pane.pack1 (list_vpacker, true, true);
-       track_list_canvas_pane.pack2 (canvas_region_list_pane, true, true);
-
-       /* provide special pane-handle event handling for easy "hide" action */
-
-       /* 0: collapse to show left/upper child
-          1: collapse to show right/lower child
-       */
-
-       route_group_vpane.set_data ("collapse-direction", (gpointer) 0);
-       region_selection_vpane.set_data ("collapse-direction", (gpointer) 0);
-       canvas_region_list_pane.set_data ("collapse-direction", (gpointer) 0);
-       track_list_canvas_pane.set_data ("collapse-direction", (gpointer) 1);
-
-       route_group_vpane.signal_button_release_event().connect (bind (sigc::ptr_fun (pane_handler), static_cast<Paned*> (&route_group_vpane)));
-       region_selection_vpane.signal_button_release_event().connect (bind (sigc::ptr_fun (pane_handler), static_cast<Paned*> (&region_selection_vpane)));
-       canvas_region_list_pane.signal_button_release_event().connect (bind (sigc::ptr_fun (pane_handler), static_cast<Paned*> (&canvas_region_list_pane)));
-       track_list_canvas_pane.signal_button_release_event().connect (bind (sigc::ptr_fun (pane_handler), static_cast<Paned*> (&track_list_canvas_pane)));
+       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);
 
        HBox *hbox = manage (new HBox);
-       hbox->pack_start (track_list_canvas_pane, true, true);
+       hbox->pack_start (edit_pane, true, true);
 
        global_vpacker.pack_start (top_hbox, false, false);
        global_vpacker.pack_start (*hbox, true, true);
@@ -682,8 +702,13 @@ Editor::Editor (AudioEngine& eng)
        global_hpacker.pack_start (global_vpacker, true, true);
 
        set_name ("EditorWindow");
+       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);
@@ -695,8 +720,8 @@ Editor::Editor (AudioEngine& eng)
 
        /* 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"));
@@ -715,6 +740,12 @@ 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 ();
 }
@@ -786,214 +817,12 @@ 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::initialize_canvas ()
-{
-       ArdourCanvas::init ();
-
-       /* adjust sensitivity for "picking" items */
-
-       // GNOME_CANVAS(track_canvas)->close_enough = 2;
-
-       track_canvas.signal_event().connect (bind (mem_fun (*this, &Editor::track_canvas_event), (ArdourCanvas::Item*) 0));
-       track_canvas.set_name ("EditorMainCanvas");
-       track_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK);
-       track_canvas.signal_leave_notify_event().connect (mem_fun(*this, &Editor::left_track_canvas));
-       
-       /* set up drag-n-drop */
-       vector<Gtk::TargetEntry> target_table;
-       
-       target_table.push_back (TargetEntry ("STRING"));
-       target_table.push_back (TargetEntry ("text/plain"));
-       target_table.push_back (TargetEntry ("text/uri-list"));
-       target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
-
-       // GTK2FIX
-       // track_canvas.drag_dest_set (target_table, DEST_DEFAULT_ALL, GdkDragAction (Gdk::ACTION_COPY|Gdk::ACTION_MOVE));
-       // track_canvas.signal_drag_data_received().connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));
-
-       /* stuff for the verbose canvas cursor */
-
-       Pango::FontDescription font = get_font_for_style (N_("VerboseCanvasCursor"));
-
-       verbose_canvas_cursor = new ArdourCanvas::Text (*track_canvas.root());
-       verbose_canvas_cursor->set_property ("font_desc", font);
-       // GTK2FIX
-       // verbose_canvas_cursor->set_property ("anchor", GTK_ANCHOR_NW);
-       verbose_canvas_cursor->set_property ("fill_color_rgba", color_map[cVerboseCanvasCursor]);
-       
-       verbose_cursor_visible = false;
-       
-       /* a group to hold time (measure) lines */
-       
-       time_line_group = new ArdourCanvas::Group (*track_canvas.root(), 0.0, 0.0);
-       cursor_group = new ArdourCanvas::Group (*track_canvas.root(), 0.0, 0.0);
-       
-       time_canvas.set_name ("EditorTimeCanvas");
-       time_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK);
-       
-       meter_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, 0.0);
-       tempo_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, 0.0);
-       marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 2.0);
-       range_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 3.0);
-       transport_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 4.0);
-       
-       tempo_bar = new ArdourCanvas::SimpleRect (*tempo_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
-       tempo_bar->set_property ("fill_color_rgba", color_map[cTempoBar]);
-       tempo_bar->set_property ("outline_pixels", 0);
-       
-       meter_bar = new ArdourCanvas::SimpleRect (*meter_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
-       meter_bar->set_property ("fill_color_rgba", color_map[cMeterBar]);
-       meter_bar->set_property ("outline_pixels",0);
-       
-       marker_bar = new ArdourCanvas::SimpleRect (*marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
-       marker_bar->set_property ("fill_color_rgba", color_map[cMarkerBar]);
-       marker_bar->set_property ("outline_pixels", 0);
-       
-       range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
-       range_marker_bar->set_property ("fill_color_rgba", color_map[cRangeMarkerBar]);
-       range_marker_bar->set_property ("outline_pixels", 0);
-       
-       transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
-       transport_marker_bar->set_property ("fill_color_rgba", color_map[cTransportMarkerBar]);
-       transport_marker_bar->set_property ("outline_pixels", 0);
-       
-       range_bar_drag_rect = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
-       range_bar_drag_rect->set_property ("fill_color_rgba", color_map[cRangeDragBarRectFill]);
-       range_bar_drag_rect->set_property ("outline_color_rgba", color_map[cRangeDragBarRect]);
-       range_bar_drag_rect->set_property ("outline_pixels", 0);
-       range_bar_drag_rect->hide ();
-       
-       transport_bar_drag_rect = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
-       transport_bar_drag_rect ->set_property ("fill_color_rgba", color_map[cTransportDragRectFill]);
-       transport_bar_drag_rect->set_property ("outline_color_rgba", color_map[cTransportDragRect]);
-       transport_bar_drag_rect->set_property ("outline_pixels", 0);
-       transport_bar_drag_rect->hide ();
-       
-       marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
-       marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
-
-       marker_drag_line = new ArdourCanvas::Line (*track_canvas.root());
-       marker_drag_line->set_property ("width_pixels", 1);
-       marker_drag_line->set_property("fill_color_rgba", color_map[cMarkerDragLine]);
-       marker_drag_line->set_property("points", marker_drag_line_points);
-       marker_drag_line->hide();
-
-       range_marker_drag_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
-       range_marker_drag_rect->set_property ("fill_color_rgba", color_map[cRangeDragRectFill]);
-       range_marker_drag_rect->set_property ("outline_color_rgba", color_map[cRangeDragRect]);
-       range_marker_drag_rect->hide ();
-       
-       transport_loop_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
-       transport_loop_range_rect->set_property ("fill_color_rgba", color_map[cTransportLoopRectFill]);
-       transport_loop_range_rect->set_property ("outline_color_rgba", color_map[cTransportLoopRect]);
-       transport_loop_range_rect->set_property ("outline_pixels", 1);
-       transport_loop_range_rect->hide();
-
-       transport_punch_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
-       transport_punch_range_rect->set_property ("fill_color_rgba", color_map[cTransportPunchRectFill]);
-       transport_punch_range_rect->set_property ("outline_color_rgba", color_map[cTransportPunchRect]);
-       transport_punch_range_rect->set_property ("outline_pixels", 0);
-       transport_punch_range_rect->hide();
-       
-       transport_loop_range_rect->lower_to_bottom (); // loop on the bottom
-
-       transport_punchin_line = new ArdourCanvas::SimpleLine (*time_line_group);
-       transport_punchin_line->set_property ("x1", 0.0);
-       transport_punchin_line->set_property ("y1", 0.0);
-       transport_punchin_line->set_property ("x2", 0.0);
-       transport_punchin_line->set_property ("y2", 0.0);
-       transport_punchin_line->property_color_rgba().set_value (color_map[cPunchInLine]);
-       transport_punchin_line->hide ();
-       
-       transport_punchout_line  = new ArdourCanvas::SimpleLine (*time_line_group);
-       transport_punchout_line->set_property ("x1", 0.0);
-       transport_punchout_line->set_property ("y1", 0.0);
-       transport_punchout_line->set_property ("x2", 0.0);
-       transport_punchout_line->set_property ("y2", 0.0);
-       transport_punchout_line->property_color_rgba().set_value (color_map[cPunchOutLine]);
-       transport_punchout_line->hide();
-       
-       // used to show zoom mode active zooming
-       zoom_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
-       zoom_rect->set_property ("fill_color_rgba", color_map[cZoomRectFill]);
-       zoom_rect->set_property ("outline_color_rgba", color_map[cZoomRect]);
-       zoom_rect->set_property ("outline_pixels", 1);
-       zoom_rect->hide();
-       
-       zoom_rect->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_zoom_rect_event), (ArdourCanvas::Item*) 0));
-       
-       // used as rubberband rect
-       rubberband_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
-       rubberband_rect->set_property ("outline_color_rgba", color_map[cRubberBandRect]);
-       rubberband_rect->set_property ("fill_color_rgba", (guint32) color_map[cRubberBandRectFill]);
-       rubberband_rect->set_property ("outline_pixels", 1);
-       rubberband_rect->hide();
-       
-       tempo_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_tempo_bar_event), tempo_bar));
-       meter_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_meter_bar_event), meter_bar));
-       marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_marker_bar_event), marker_bar));
-       range_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_range_marker_bar_event), range_marker_bar));
-       transport_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_transport_marker_bar_event), transport_marker_bar));
-       
-       /* separator lines */
-
-       tempo_line_points.push_back(Gnome::Art::Point(0, timebar_height));
-       tempo_line_points.push_back(Gnome::Art::Point(max_canvas_coordinate, timebar_height));
-       
-       tempo_line = new ArdourCanvas::Line (*tempo_group, tempo_line_points);
-       tempo_line->set_property ("width_pixels", 0);
-       tempo_line->property_fill_color().set_value (0);;
-
-       meter_line_points.push_back(Gnome::Art::Point (0, timebar_height));
-       meter_line_points.push_back(Gnome::Art::Point(max_canvas_coordinate, timebar_height));
-
-       meter_line = new ArdourCanvas::Line (*meter_group, meter_line_points);
-       meter_line->set_property ("width_pixels", 0);
-       meter_line->property_fill_color().set_value (0);;
-
-       marker_line_points.push_back(Gnome::Art::Point (0, timebar_height));
-       marker_line_points.push_back(Gnome::Art::Point(max_canvas_coordinate, timebar_height));
-
-       marker_line =  new ArdourCanvas::Line (*marker_group, marker_line_points);
-       marker_line->set_property ("width_pixels", 0);
-       marker_line->property_fill_color().set_value (0);;
-       
-       range_marker_line =  new ArdourCanvas::Line (*range_marker_group, marker_line_points);
-       range_marker_line->set_property ("width_pixels", 0);
-       range_marker_line->property_fill_color().set_value (0);;
-
-       transport_marker_line =  new ArdourCanvas::Line (*transport_marker_group, marker_line_points);
-       transport_marker_line->set_property ("width_pixels", 0);
-       transport_marker_line->property_fill_color().set_value (0);;
-
-       ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_loop_range_view), false));
-       ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_punch_range_view), false));
-       
-       double time_height = timebar_height * 5;
-       double time_width = FLT_MAX/frames_per_unit;
-       time_canvas.set_scroll_region(0.0, 0.0, time_width, time_height);
-       
-       edit_cursor = new Cursor (*this, "blue", &Editor::canvas_edit_cursor_event);
-       playhead_cursor = new Cursor (*this, "red", &Editor::canvas_playhead_cursor_event);
-       
-       track_canvas.signal_size_allocate().connect (mem_fun(*this, &Editor::track_canvas_allocate));
-}
-
 void
 Editor::show_window ()
 {
        show_all ();
-       
+       present ();
+
        /* now reset all audio_time_axis heights, because widgets might need
           to be re-hidden
        */
@@ -1009,9 +838,8 @@ Editor::show_window ()
 void
 Editor::tie_vertical_scrolling ()
 {
-       edit_controls_scroller.get_vadjustment()->set_value (track_canvas_scroller.get_vadjustment()->get_value());
-
-       float y1 = track_canvas_scroller.get_vadjustment()->get_value();
+       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);
 }
@@ -1031,7 +859,7 @@ Editor::set_frames_per_unit (double fpu)
 
        // convert fpu to frame count
 
-       frames = (jack_nframes_t) (fpu * canvas_width);
+       frames = (jack_nframes_t) floor (fpu * canvas_width);
        
        /* don't allow zooms that fit more than the maximum number
           of frames into an 800 pixel wide space.
@@ -1051,25 +879,29 @@ Editor::set_frames_per_unit (double fpu)
           which will do the same updates.
        */
        
-       if (session) {
-               track_canvas_scroller.get_hadjustment()->set_upper (session->current_end_frame() / frames_per_unit);
-       }
-       
        if (!no_zoom_repos_update) {
-               track_canvas_scroller.get_hadjustment()->set_value (leftmost_frame/frames_per_unit);
-               update_hscroller ();
+               horizontal_adjustment.set_value (leftmost_frame/frames_per_unit);
                update_fixed_rulers ();
                tempo_map_changed (Change (0));
        }
 
        if (mouse_mode == MouseRange && selection->time.start () != selection->time.end_frame ()) {
-               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);
 
@@ -1087,7 +919,7 @@ Editor::instant_save ()
        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());
        }
 }
 
@@ -1096,12 +928,15 @@ Editor::reposition_x_origin (jack_nframes_t frame)
 {
        if (frame != leftmost_frame) {
                leftmost_frame = frame;
-               double pixel = frame_to_pixel (frame);
-               if (pixel >= track_canvas_scroller.get_hadjustment()->get_upper()) {
-                       track_canvas_scroller.get_hadjustment()->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 ();
                }
-               track_canvas_scroller.get_hadjustment()->set_value (frame/frames_per_unit);
-               XOriginChanged (); /* EMIT_SIGNAL */
+
+               horizontal_adjustment.set_value (frame/frames_per_unit);
        }
 }
 
@@ -1121,31 +956,71 @@ Editor::zoom_adjustment_changed ()
                return;
        }
 
-       double fpu = (double) zoom_range_clock.current_duration() / (double) canvas_width;
+       double fpu = zoom_range_clock.current_duration() / canvas_width;
 
        if (fpu < 1.0) {
                fpu = 1.0;
-               zoom_range_clock.set ((jack_nframes_t) (fpu * canvas_width));
-       }
-       else if (fpu > session->current_end_frame() / (double) canvas_width) {
-               fpu = session->current_end_frame() / (double) canvas_width;
-               zoom_range_clock.set ((jack_nframes_t) (fpu * canvas_width));
+               zoom_range_clock.set ((jack_nframes_t) floor (fpu * canvas_width));
+       } else if (fpu > session->current_end_frame() / canvas_width) {
+               fpu = session->current_end_frame() / canvas_width;
+               zoom_range_clock.set ((jack_nframes_t) floor (fpu * canvas_width));
        }
        
        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 ()
 {
-       /* XXX note the potential loss of accuracy here caused by
-          adjustments being 32bit floats with only a 24 bit mantissa,
-          whereas jack_nframes_t is at least a 32 bit uint32_teger.
-       */
-       
-       leftmost_frame = (jack_nframes_t) floor (track_canvas_scroller.get_hadjustment()->get_value() * frames_per_unit);
-       
-       update_hscroller ();
+       leftmost_frame = (jack_nframes_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
+
        update_fixed_rulers ();
        
        if (!edit_hscroll_dragging) {
@@ -1159,7 +1034,7 @@ 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;
        }
 }
@@ -1187,193 +1062,7 @@ 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());
-       
-        Glib::RefPtr<Gdk::Pixmap> empty_pixmap = Gdk::Pixmap::create(get_window(), 1, 1, 1);
-       Glib::RefPtr<Gdk::Pixmap> empty_bitmap = Gdk::Pixmap::create(get_window(), 1, 1, 1);
-       Gdk::Color white ("#ffffff" );
-
-       null_cursor = new Gdk::Cursor(empty_pixmap, empty_bitmap, white, white, 0, 0);
-}
-
-void
-Editor::on_map ()
-{
-       Window::on_map ();
-
-       track_canvas_scroller.get_window()->set_cursor (*current_canvas_cursor);
-       time_canvas_scroller.get_window()->set_cursor (*timebar_cursor);
-}
-
-void
-Editor::track_canvas_allocate (Gtk::Allocation alloc)
-{
-       canvas_width = alloc.get_width();
-       canvas_height = alloc.get_height();
-
-       if (session == 0 && !ARDOUR_UI::instance()->will_create_new_session_automatically()) {
-
-               Pango::FontDescription font = get_font_for_style (N_("FirstActionMessage"));
-
-               const char *txt1 = _("Start a new session\n");
-               const char *txt2 = _("via Session menu");
-
-               /* this mess of code is here to find out how wide this text is and
-                  position the message in the center of the editor window. there
-                  are two lines, so we use the longer of the the lines to
-                  compute width, and multiply the height by 2.
-               */
-                       
-               int pixel_height;
-               int pixel_width;
-               
-               /* this is a dummy widget that exists so that we can get the
-                  style from the RC file. 
-               */
-               
-               Label foo (_(txt2));
-               Glib::RefPtr<Pango::Layout> layout;
-               foo.set_name ("NoSessionMessage");
-               foo.ensure_style ();
-               
-               layout = foo.create_pango_layout (_(txt2));
-               layout->set_font_description (font);
-               layout->get_pixel_size (pixel_width, pixel_height);
-                       
-               if (first_action_message == 0) {
-                       
-                       char txt[strlen(txt1)+strlen(txt2)+1];
-                       
-                       /* merge both lines */
-                       
-                       strcpy (txt, _(txt1));
-                       strcat (txt, _(txt2));
-                       
-                       first_action_message = new ArdourCanvas::Text (*track_canvas.root());
-                       first_action_message->set_property ("font_desc", font);
-                       first_action_message->set_property ("fill_color_rgba", color_map[cFirstActionMessage]);
-                       first_action_message->set_property ("x", (gdouble) (canvas_width - pixel_width) / 2.0);
-                       first_action_message->set_property ("y", (gdouble) (canvas_height/2.0) - (2.0 * (pixel_height)));
-                       first_action_message->set_property ("anchor", GTK_ANCHOR_NORTH_WEST);
-                       first_action_message->set_property ("text", ustring (txt));
-                       
-               } else {
-
-                       /* center it */
-                       first_action_message->set_property ("x", (gdouble) (canvas_width - pixel_width) / 2.0),
-                       first_action_message->set_property ("y", (gdouble) (canvas_height/2.0) - (2.0 * (pixel_height)));
-               }
-       }
-
-       zoom_range_clock.set ((jack_nframes_t) (canvas_width * frames_per_unit));
-       edit_cursor->set_position (edit_cursor->current_frame);
-       playhead_cursor->set_position (playhead_cursor->current_frame);
-       reset_scrolling_region (&alloc);
-       
-       Resized (); /* EMIT_SIGNAL */
-}
-
-void
-Editor::reset_scrolling_region (Gtk::Allocation* alloc)
-{
-       guint32 last_canvas_unit;
-       double height;
-       guint32 canvas_alloc_height, canvas_alloc_width;
-       TrackViewList::iterator i;
-       static bool first_time = true;
-
-       /* We need to make sure that the canvas always has its
-          scrolling region set to larger of:
-
-          - the size allocated for it (within the container its packed in)
-          - the size required to see the entire session
-
-          If we don't ensure at least the first of these, the canvas
-          does some wierd and in my view unnecessary stuff to center
-          itself within the allocated area, which causes bad, bad
-          results.
-          
-          XXX GnomeCanvas has fixed this, and has an option to
-          control the centering behaviour.
-       */
-
-       last_canvas_unit = (guint32) ceil ((float) max_frames / frames_per_unit);
-
-       height = 0;
-
-       if (session) {
-               for (i = track_views.begin(); i != track_views.end(); ++i) {
-                       if ((*i)->control_parent) {
-                               height += (*i)->effective_height;
-                               height += track_spacing;
-                       }
-               }
-               
-               if (height) {
-                       height -= track_spacing;
-               }
-       }
-
-       canvas_height = (guint32) height;
-       
-       if (alloc) {
-               canvas_alloc_height = alloc->get_height();
-               canvas_alloc_width = alloc->get_width();
-       } else {
-               canvas_alloc_height = track_canvas.get_height();
-               canvas_alloc_width = track_canvas.get_width();
-       }
-
-       canvas_height = max (canvas_height, canvas_alloc_height);
-       track_canvas.set_scroll_region ( 0.0, 0.0, max (last_canvas_unit, canvas_alloc_width), canvas_height);
-
-       if (edit_cursor) edit_cursor->set_length (canvas_alloc_height);
-       if (playhead_cursor) playhead_cursor->set_length (canvas_alloc_height);
-
-       if (marker_drag_line) {
-               marker_drag_line_points.back().set_x(canvas_height);
-               // cerr << "set mlA points, nc = " << marker_drag_line_points.num_points << endl;
-               marker_drag_line->set_property("points", marker_drag_line_points);
-       }
-       if (range_marker_drag_rect) {
-               range_marker_drag_rect->set_property("y1", 0.0);
-               range_marker_drag_rect->set_property("y2", (double) canvas_height);
-       }
-
-       if (transport_loop_range_rect) {
-               transport_loop_range_rect->set_property("y1", 0.0);
-               transport_loop_range_rect->set_property("y2", (double) canvas_height);
-       }
-
-       if (transport_punch_range_rect) {
-               transport_punch_range_rect->set_property("y1", 0.0);
-               transport_punch_range_rect->set_property("y2", (double) canvas_height);
-       }
-
-       if (transport_punchin_line) {
-               transport_punchin_line->set_property("y1", 0.0);
-               transport_punchin_line->set_property("y2", (double) canvas_height);
-       }
-
-       if (transport_punchout_line) {
-               transport_punchout_line->set_property("y1", 0.0);
-               transport_punchout_line->set_property("y2", (double) canvas_height);
-       }
-               
-       update_fixed_rulers ();
-
-       if (is_visible() && first_time) {
-               tempo_map_changed (Change (0));
-               first_time = false;
-       } else {
-               redisplay_tempo ();
-       }
+       Realized ();
 }
 
 void
@@ -1385,7 +1074,7 @@ 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:
@@ -1396,50 +1085,27 @@ 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)
+Editor::start_scrolling ()
 {
-       Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &Editor::add_edit_group), group));
+       scroll_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect 
+               (mem_fun(*this, &Editor::update_current_screen));
 }
 
 void
-Editor::fake_handle_new_audio_region (AudioRegion *region)
+Editor::stop_scrolling ()
 {
-       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
-Editor::stop_scrolling ()
-{
-       scroll_connection.disconnect ();
-       slower_update_connection.disconnect ();
+       scroll_connection.disconnect ();
+       slower_update_connection.disconnect ();
 }
 
 void
@@ -1458,13 +1124,13 @@ Editor::map_position_change (jack_nframes_t frame)
 void
 Editor::center_screen (jack_nframes_t frame)
 {
-       float page = canvas_width * frames_per_unit;
+       double page = canvas_width * frames_per_unit;
 
        /* if we're off the page, then scroll.
         */
        
        if (frame < leftmost_frame || frame >= leftmost_frame + page) {
-               center_screen_internal (frame,page);
+               center_screen_internal (frame, page);
        }
 }
 
@@ -1485,18 +1151,20 @@ 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) {
-               track_canvas_scroller.get_hadjustment()->set_upper (session->current_end_frame() / frames_per_unit);
-               track_canvas_scroller.get_hadjustment()->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 ();
        }
-       
-       update_hscroller ();
+
+       horizontal_adjustment.set_value (leftmost_frame/frames_per_unit);
 }
 
 void
-Editor::update_title_s (string snap_name)
+Editor::update_title_s (const string & snap_name)
 {
        ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::update_title_s), snap_name));
        
@@ -1541,8 +1209,6 @@ 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));
@@ -1555,10 +1221,11 @@ 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->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)));
@@ -1571,10 +1238,7 @@ 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);
@@ -1583,6 +1247,11 @@ Editor::connect_to_session (Session *t)
        _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]);
@@ -1625,7 +1294,7 @@ 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));
@@ -1634,26 +1303,39 @@ 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 ();
-
-       if (embed_audio_item) {
-               embed_audio_item->set_sensitive (true);
-       } 
-       if (import_audio_item) {
-               import_audio_item->set_sensitive (true);
-       }
+       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);
@@ -1666,10 +1348,8 @@ Editor::connect_to_session (Session *t)
 
        leftmost_frame = 0;
        
-       track_canvas_scroller.get_hadjustment()->set_upper (session->current_end_frame() / frames_per_unit);
-       track_canvas_scroller.get_hadjustment()->set_value (0);
+       horizontal_adjustment.set_value (0);
 
-       update_hscroller ();
        restore_ruler_visibility ();
        tempo_map_changed (Change (0));
 
@@ -1688,21 +1368,21 @@ 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 ();
+                                       route_list_display.get_selection()->unselect (i);
                                }
                        }
                }
-
-               //route_list.thaw ();
+               
+               no_route_list_redisplay = false;
+               redisplay_route_list ();
        }
 }
 
@@ -1710,16 +1390,6 @@ void
 Editor::build_cursors ()
 {
        using namespace Gdk;
-
-       Gdk::Color fg ("#ff0000"); /* Red. */
-       Gdk::Color bg ("#0000ff"); /* Blue. */
-
-       {
-               RefPtr<Bitmap> source, mask;
-               source = Bitmap::create (hand_bits, hand_width, hand_height);
-               mask = Bitmap::create (handmask_bits, handmask_width, handmask_height);
-               grabber_cursor = new Gdk::Cursor (source, mask, fg, bg, hand_x_hot, hand_y_hot);
-       }
        
        Gdk::Color mbg ("#000000" ); /* Black */
        Gdk::Color mfg ("#0000ff" ); /* Blue. */
@@ -1749,19 +1419,20 @@ Editor::build_cursors ()
                speaker_cursor = new Gdk::Cursor (source, mask, ffg, fbg, speaker_cursor_x_hot, speaker_cursor_y_hot);
        }
 
-       cross_hair_cursor = new Gdk::Cursor (Gdk::CROSSHAIR);
-       trimmer_cursor =  new Gdk::Cursor (Gdk::SB_H_DOUBLE_ARROW);
-       selector_cursor = new Gdk::Cursor (Gdk::XTERM);
-       time_fx_cursor = new Gdk::Cursor (Gdk::SIZING);
-       wait_cursor = new Gdk::Cursor  (Gdk::WATCH);
-       timebar_cursor = new Gdk::Cursor(Gdk::LEFT_PTR);
+       grabber_cursor = new Gdk::Cursor (HAND2);
+       cross_hair_cursor = new Gdk::Cursor (CROSSHAIR);
+       trimmer_cursor =  new Gdk::Cursor (SB_H_DOUBLE_ARROW);
+       selector_cursor = new Gdk::Cursor (XTERM);
+       time_fx_cursor = new Gdk::Cursor (SIZING);
+       wait_cursor = new Gdk::Cursor  (WATCH);
+       timebar_cursor = new Gdk::Cursor(LEFT_PTR);
 }
 
 void
 Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType item_type)
 {
        using namespace Menu_Helpers;
-       AudioRegionView* arv = static_cast<AudioRegionView*> (gtk_object_get_data (GTK_OBJECT(item), "regionview"));
+       AudioRegionView* arv = static_cast<AudioRegionView*> (item->get_data ("regionview"));
 
        if (arv == 0) {
                fatal << _("programming error: fade in canvas item has no regionview data pointer!") << endmsg;
@@ -1872,16 +1543,18 @@ Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type,
                if (!with_selection) {
                        if (region_edit_menu_split_item) {
                                if (clicked_regionview && clicked_regionview->region.covers (edit_cursor->current_frame)) {
-                                       region_edit_menu_split_item->set_sensitive (true);
+                                       ActionManager::set_sensitive (ActionManager::edit_cursor_in_region_sensitive_actions, true);
                                } else {
-                                       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) {
-                                       region_edit_menu_split_multichannel_item->set_sensitive (true);
+                                       // GTK2FIX find the action, change its sensitivity
+                                       // region_edit_menu_split_multichannel_item->set_sensitive (true);
                                } else {
-                                       region_edit_menu_split_multichannel_item->set_sensitive (false);
+                                       // GTK2FIX see above
+                                       // region_edit_menu_split_multichannel_item->set_sensitive (false);
                                }
                        }
                }
@@ -2020,6 +1693,46 @@ 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)
 {
@@ -2121,6 +1834,11 @@ 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
@@ -2160,6 +1878,13 @@ 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());
@@ -2227,20 +1952,30 @@ 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());
 }
@@ -2270,13 +2005,19 @@ 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 (_("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 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 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));
@@ -2301,23 +2042,13 @@ 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 */
 
@@ -2355,14 +2086,15 @@ 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));
 
@@ -2423,54 +2155,19 @@ 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;
@@ -2478,24 +2175,24 @@ 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);
-       // GTK2FIX
-       // set_position(x, y-yoff);
+       set_geometry_hints (vpacker, g, Gdk::HINT_BASE_SIZE);
+       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"))) {
@@ -2506,52 +2203,86 @@ 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;
@@ -2585,14 +2316,8 @@ Editor::get_state ()
                geometry->add_property("x_off", string(buf));
                snprintf(buf, sizeof(buf), "%d", yoff);
                geometry->add_property("y_off", string(buf));
-               snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&canvas_region_list_pane)->gobj()));
-               geometry->add_property("canvas_region_list_pane_pos", string(buf));
-               snprintf(buf,sizeof(buf), "%d", gtk_paned_get_position (static_cast<Paned*>(&track_list_canvas_pane)->gobj()));
-               geometry->add_property("track_list_canvas_pane_pos", string(buf));
-               snprintf(buf,sizeof(buf), "%d", gtk_paned_get_position (static_cast<Paned*>(&region_selection_vpane)->gobj()));
-               geometry->add_property("region_selection_pane_pos", string(buf));
-               snprintf(buf,sizeof(buf), "%d", gtk_paned_get_position (static_cast<Paned*>(&route_group_vpane)->gobj()));
-               geometry->add_property("route_group_pane_pos", string(buf));
+               snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&edit_pane)->gobj()));
+               geometry->add_property("edit_pane_pos", string(buf));
 
                node->add_child_nocopy (*geometry);
        }
@@ -2613,8 +2338,13 @@ 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;
 }
 
@@ -2880,10 +2610,14 @@ Editor::setup_toolbar ()
        mouse_mode_tearoff = manage (new TearOff (mouse_mode_button_table));
        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");
@@ -2899,12 +2633,12 @@ Editor::setup_toolbar ()
        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));
@@ -2938,7 +2672,8 @@ Editor::setup_toolbar ()
 
        /* XXX another disgusting hack because of the way combo boxes size themselves */
 
-       Gtkmm2ext::set_size_request_to_display_given_text (edit_mode_selector, "EdgtMode", 2, 10);
+       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);
@@ -2956,8 +2691,7 @@ Editor::setup_toolbar ()
 
        /* XXX another disgusting hack because of the way combo boxes size themselves */
 
-       const guint32 FUDGE = 10; // Combo's are stupid - they steal space from the entry for the button
-       Gtkmm2ext::set_size_request_to_display_given_text (snap_type_selector, "Region bounds", 2+FUDGE, 10);
+       Gtkmm2ext::set_size_request_to_display_given_text (snap_type_selector, "SMPTE Seconds", 2+FUDGE, 10);
        set_popdown_strings (snap_type_selector, internationalize (snap_type_strings));
 
        snap_type_box.pack_start (snap_type_label, false, false);
@@ -2974,7 +2708,7 @@ Editor::setup_toolbar ()
        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, 10);
+       Gtkmm2ext::set_size_request_to_display_given_text (snap_mode_selector, "SngpMode", 2+FUDGE, 10);
        set_popdown_strings (snap_mode_selector, internationalize (snap_mode_strings));
 
        snap_mode_box.pack_start (snap_mode_label, false, false);
@@ -2993,7 +2727,7 @@ Editor::setup_toolbar ()
 
        /* 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, 10);
+       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);
@@ -3010,32 +2744,38 @@ Editor::setup_toolbar ()
 
        selection_start_clock_label.set_text (_("Start:"));
        selection_end_clock_label.set_text (_("End:"));
-       edit_cursor_clock_label.set_text (_("Edit:"));
+       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);
+       /* the zoom in/out buttons are generally taller than the clocks, so
+          put all the toolbar clocks into a size group with one of the 
+          buttons to make them all equal height.
 
-//     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);
+          this also applies to the various toolbar combos
+       */
 
-//     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);
+       RefPtr<SizeGroup> toolbar_clock_size_group = SizeGroup::create (SIZE_GROUP_VERTICAL);
+       toolbar_clock_size_group->add_widget (zoom_out_button);
+       toolbar_clock_size_group->add_widget (edit_cursor_clock);
+       toolbar_clock_size_group->add_widget (zoom_range_clock);
+       toolbar_clock_size_group->add_widget (nudge_clock);
+       toolbar_clock_size_group->add_widget (edit_mode_selector);
+       toolbar_clock_size_group->add_widget (snap_type_selector);
+       toolbar_clock_size_group->add_widget (snap_mode_selector);
+       toolbar_clock_size_group->add_widget (zoom_focus_selector);
 
+       HBox* edit_clock_hbox = manage (new HBox());
+       VBox* edit_clock_vbox = manage (new VBox());
 
-//     toolbar_clock_vbox.set_spacing (2);
-//     toolbar_clock_vbox.set_border_width (10);
-       /* the editor/mixer button will be enabled at session connect */
+       edit_clock_hbox->pack_start (edit_cursor_clock, false, false);
 
-       editor_mixer_button.set_active(false);
-       editor_mixer_button.set_sensitive(false);
+       edit_clock_vbox->set_spacing (3);
+       edit_clock_vbox->set_border_width (3);
+       edit_clock_vbox->pack_start (edit_cursor_clock_label, false, false);
+       edit_clock_vbox->pack_start (*edit_clock_hbox, false, false);
 
        HBox* hbox = new HBox;
 
-       hbox->pack_start (editor_mixer_button, false, false);
-       hbox->pack_start (toolbar_selection_clock_table, false, false);
+       hbox->pack_start (*edit_clock_vbox, 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);
@@ -3068,11 +2808,14 @@ Editor::setup_toolbar ()
        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);
@@ -3083,232 +2826,86 @@ Editor::setup_toolbar ()
        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
@@ -3363,7 +2960,7 @@ Editor::restore_state (State *state)
 
        *selection = *state->selection;
        time_selection_changed ();
-       region_selection_changed ();
+       region_selection_changed ();   
 
        /* XXX other selection change handlers? */
 }
@@ -3386,178 +2983,344 @@ Editor::commit_reversible_command ()
        }
 }
 
-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 (AudioTimeAxisView& atv, uint32_t ignored, 
+                                                 AudioRegionView* basis, vector<AudioRegionView*>* all_equivs)
 {
-       if (!clicked_regionview) {
+       AudioPlaylist* pl;
+       vector<AudioRegion*> results;
+       AudioRegionView* marv;
+       DiskStream* ds;
+
+       if ((ds = atv.get_diskstream()) == 0) {
+               /* bus */
                return;
        }
 
-       AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(&clicked_regionview->get_time_axis_view());
-
-       if (!atv) {
+       if (&atv == &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 = ds->playlist()) != 0) {
+               pl->get_equivalent_regions (basis->region, results);
+       }
+       
+       for (vector<AudioRegion*>::iterator ir = results.begin(); ir != results.end(); ++ir) {
+               if ((marv = atv.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<AudioRegionView*> 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<AudioRegionView*>::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 (AudioRegionSelection::iterator x = selection->audio_regions.begin(); x != selection->audio_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<AudioRegionView*> audio_regions;
+               
+               for (list<Selectable*>::iterator x = results.begin(); x != results.end(); ++x) {
+                       AudioRegionView* arv;
 
-               if (clicked_regionview->get_selected()) {
-                       /* no commit necessary: we are the one selected. */
-                       return;
+                       if ((arv = dynamic_cast<AudioRegionView*>(*x)) != 0) {
+                               audio_regions.push_back (arv);
+                       }
+               }
 
-               } else {
-                       
-                       selection->set (all_equivalent_regions);
-                       set_selected_track_from_click (add, false, false);
+               if (!audio_regions.empty()) {
+                       selection->add (audio_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& r, Selection::Operation op)
 {
        vector<AudioRegionView*> all_equivalent_regions;
        AudioRegion* region;
@@ -3597,13 +3360,17 @@ 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 () ;
@@ -3735,21 +3502,14 @@ 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);
        }
@@ -3773,49 +3533,24 @@ Editor::duplicate_dialog (bool dup_region)
        ArdourDialog win ("duplicate dialog");
        Entry  entry;
        Label  label (_("Duplicate how many times?"));
-       HBox   hbox;
-       HBox   button_box;
-       Button ok_button (_("OK"));
-       Button cancel_button (_("Cancel"));
-       VBox   vbox;
-
-       button_box.set_spacing (7);
-       set_size_request_to_display_given_text (ok_button, _("Cancel"), 20, 15); // this is cancel on purpose
-       set_size_request_to_display_given_text (cancel_button, _("Cancel"), 20, 15);
-       button_box.pack_end (ok_button, false, false);
-       button_box.pack_end (cancel_button, false, false);
-       
-       hbox.set_spacing (5);
-       hbox.pack_start (label);
-       hbox.pack_start (entry, true, true);
-       
-       vbox.set_spacing (5);
-       vbox.set_border_width (5);
-       vbox.pack_start (hbox);
-       vbox.pack_start (button_box);
 
-       win.add (vbox);
-       win.set_position (Gtk::WIN_POS_MOUSE);
-       win.show_all ();
+       win.get_vbox()->pack_start (label);
+       win.add_action_widget (entry, RESPONSE_ACCEPT);
+       win.add_button (Stock::OK, RESPONSE_ACCEPT);
+       win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
 
-       ok_button.signal_clicked().connect (bind (mem_fun (win, &ArdourDialog::stop), 0));
-       entry.signal_activate().connect (bind (mem_fun (win, &ArdourDialog::stop), 0));
-       cancel_button.signal_clicked().connect (bind (mem_fun (win, &ArdourDialog::stop), 1));
+       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());
-
-       win.set_position (Gtk::WIN_POS_MOUSE);
-       // GTK2FIX
-       // win.realize ();
-       // win.get_window()->set_decorations (Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH));
-
        entry.grab_focus ();
 
-       win.run ();
 
-       if (win.run_status() != 0) {
+       switch (win.run ()) {
+       case RESPONSE_ACCEPT:
+               break;
+       default:
                return;
        }
 
@@ -3849,20 +3584,20 @@ Editor::hide_verbose_canvas_cursor ()
 }
 
 void
-Editor::set_verbose_canvas_cursor (string 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}
        */
-       verbose_canvas_cursor->set_property("text", txt.c_str());
-       verbose_canvas_cursor->set_property("x", x);
-       verbose_canvas_cursor->set_property("y", y);
+       verbose_canvas_cursor->property_text() = txt.c_str();
+       verbose_canvas_cursor->property_x() = x;
+       verbose_canvas_cursor->property_y() = y;
 }
 
 void
-Editor::set_verbose_canvas_cursor_text (string txt)
+Editor::set_verbose_canvas_cursor_text (const string & txt)
 {
-       verbose_canvas_cursor->set_property("text", txt.c_str());
+       verbose_canvas_cursor->property_text() = txt.c_str();
 }
 
 void
@@ -4034,6 +3769,12 @@ 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
@@ -4052,27 +3793,6 @@ Editor::point_selection_changed ()
        }
 }
 
-void
-Editor::run_sub_event_loop ()
-{
-       sub_event_loop_status = 0;
-       Main::run ();
-}
-
-void
-Editor::finish_sub_event_loop (int status)
-{
-       Main::quit ();
-       sub_event_loop_status = status;
-}
-
-gint
-Editor::finish_sub_event_loop_on_delete (GdkEventAny *ignored, int32_t status)
-{
-       finish_sub_event_loop (status);
-       return TRUE;
-}
-
 gint
 Editor::mouse_select_button_release (GdkEventButton* ev)
 {
@@ -4143,7 +3863,7 @@ 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.
@@ -4154,7 +3874,7 @@ 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) {
@@ -4165,89 +3885,38 @@ Editor::pane_allocation_handler (Gtk::Allocation &alloc, Gtk::Paned* which)
                height = atoi(geometry->property("y_size")->value());
        }
 
-       if (which == static_cast<Gtk::Paned*> (&track_list_canvas_pane)) {
-
-               if (done[0]) {
-                       return;
-               }
-
-               if (!geometry || (prop = geometry->property("track_list_canvas_pane_pos")) == 0) {
-                       pos = 75;
-                       snprintf (buf, sizeof(buf), "%d", pos);
-               } else {
-                       pos = atoi (prop->value());
-               }
-
-               if ((done[0] = GTK_WIDGET(track_list_canvas_pane.gobj())->allocation.width > pos)) {
-                       track_list_canvas_pane.set_position (pos);
-               }
-
-       } else if (which == static_cast<Gtk::Paned*> (&canvas_region_list_pane)) {
-
-               if (done[1]) {
-                       return;
-               }
-
-               if (!geometry || (prop = geometry->property("canvas_region_list_pane_pos")) == 0) {
-                       pos = width - (95 * 2);
-                       snprintf (buf, sizeof(buf), "%d", pos);
-               } else {
-                       pos = atoi (prop->value());
-               }
-
-               if ((done[1] = GTK_WIDGET(canvas_region_list_pane.gobj())->allocation.width > pos)) {
-                       canvas_region_list_pane.set_position (pos);
-               }
-
-       } else if (which == static_cast<Gtk::Paned*> (&route_group_vpane)) {
+       if (which == static_cast<Paned*> (&edit_pane)) {
 
-               if (done[2]) {
+               if (done) {
                        return;
                }
 
-               if (!geometry || (prop = geometry->property("route_group_pane_pos")) == 0) {
-                       pos = width - (95 * 2);
+               if (!geometry || (prop = geometry->property ("edit_pane_pos")) == 0) {
+                       /* initial allocation is 90% to canvas, 10% to notebook */
+                       pos = (int) floor (alloc.get_width() * 0.90f);
                        snprintf (buf, sizeof(buf), "%d", pos);
                } else {
                        pos = atoi (prop->value());
                }
-
-               if ((done[2] = GTK_WIDGET(route_group_vpane.gobj())->allocation.height > pos)) {
-                       route_group_vpane.set_position (pos);
-               }
-
-       } else if (which == static_cast<Gtk::Paned*> (&region_selection_vpane)) {
-
-               if (done[3]) {
-                       return;
-               }
-
-               if (!geometry || (prop = geometry->property("region_selection_pane_pos")) == 0) {
-                       pos = width - (95 * 2);
-                       snprintf (buf, sizeof(buf), "%d", pos);
-               } else {
-                       pos = atoi (prop->value());
-               }
-
-               if ((done[3] = GTK_WIDGET(region_selection_vpane.gobj())->allocation.height > pos)) { 
-                       region_selection_vpane.set_position (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);
@@ -4268,6 +3937,16 @@ 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)
 {
@@ -4300,17 +3979,15 @@ Editor::edit_xfade (Crossfade* xfade)
                
        ensure_float (cew);
        
-       cew.ok_button.signal_clicked().connect (bind (mem_fun (cew, &ArdourDialog::stop), 1));
-       cew.cancel_button.signal_clicked().connect (bind (mem_fun (cew, &ArdourDialog::stop), 0));
-       // GTK2FIX
-       // cew.signal_delete_event().connect (mem_fun (cew, &ArdourDialog::wm_doi_event_stop));
-
-       cew.run ();
-       
-       if (cew.run_status() == 1) {
-               cew.apply ();
-               xfade->StateChanged (Change (~0));
+       switch (cew.run ()) {
+       case RESPONSE_ACCEPT:
+               break;
+       default:
+               return;
        }
+       
+       cew.apply ();
+       xfade->StateChanged (Change (~0));
 }
 
 PlaylistSelector&
@@ -4334,7 +4011,7 @@ void
 Editor::end_location_changed (Location* location)
 {
        ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::end_location_changed), location));
-       track_canvas_scroller.get_hadjustment()->set_upper (location->end() / frames_per_unit);
+       reset_scrolling_region ();
 }
 
 int
@@ -4345,56 +4022,30 @@ Editor::playlist_deletion_dialog (Playlist* pl)
                                 "If left alone, no audio files used by it will be cleaned.\n"
                                 "If deleted, audio files used by it alone by will cleaned."),
                               pl->name()));
-       HBox   button_box;
-       Button del_button (_("Delete playlist"));
-       Button keep_button (_("Keep playlist"));
-       Button abort_button (_("Cancel cleanup"));
-       VBox   vbox;
-
-       button_box.set_spacing (7);
-       button_box.set_homogeneous (true);
-       button_box.pack_end (del_button, false, false);
-       button_box.pack_end (keep_button, false, false);
-       button_box.pack_end (abort_button, false, false);
-       
-       vbox.set_spacing (5);
-       vbox.set_border_width (5);
-       vbox.pack_start (label);
-       vbox.pack_start (button_box);
-
-       dialog.add (vbox);
-       dialog.set_position (Gtk::WIN_POS_CENTER);
-       dialog.show_all ();
 
-       del_button.signal_clicked().connect (bind (mem_fun (dialog, &ArdourDialog::stop), 0));
-       keep_button.signal_clicked().connect (bind (mem_fun (dialog, &ArdourDialog::stop), 1));
-       abort_button.signal_clicked().connect (bind (mem_fun (dialog, &ArdourDialog::stop), 2));
+       dialog.set_position (WIN_POS_CENTER);
+       dialog.get_vbox()->pack_start (label);
 
-       // GTK2FIX
-       // dialog.realize ();
-       // dialog.get_window()->set_decorations (Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH));
+       dialog.add_button (_("Delete playlist"), RESPONSE_ACCEPT);
+       dialog.add_button (_("Keep playlist"), RESPONSE_CANCEL);
+       dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
 
-       dialog.run ();
-
-       switch (dialog.run_status()) {
-       case 1:
-               /* keep the playlist */
-               return 1;
-               break;
-       case 0:
+       switch (dialog.run ()) {
+       case RESPONSE_ACCEPT:
                /* delete the playlist */
                return 0;
                break;
-       case 2:
-               /* abort cleanup */
-               return -1;
+
+       case RESPONSE_REJECT:
+               /* keep the playlist */
+               return 1;
                break;
+
        default:
                break;
        }
 
-       /* keep the playlist */
-       return 1;
+       return -1;
 }
 
 bool
@@ -4419,18 +4070,6 @@ Editor::prepare_for_cleanup ()
        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()
 {
@@ -4450,3 +4089,202 @@ Editor::transport_punch_location()
                return 0;
        }
 }
+
+bool
+Editor::control_layout_scroll (GdkEventScroll* ev)
+{
+       switch (ev->direction) {
+       case GDK_SCROLL_UP:
+               scroll_tracks_up_line ();
+               return true;
+               break;
+
+       case GDK_SCROLL_DOWN:
+               scroll_tracks_down_line ();
+               return true;
+               
+       default:
+               /* no left/right handling yet */
+               break;
+       }
+
+       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::update_crossfade_model ()
+{
+       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);
+               }
+       }
+}
+