a metric ton of changes
[ardour.git] / gtk2_ardour / editor.cc
index c34a807402f77c99823f359b17e36f2d27a9b2f2..a44eba37544994c64241a983f5ecd0092d82decf 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
 
 #include <sigc++/bind.h>
 
-#include <libgnomecanvas/libgnomecanvas.h>
 #include <pbd/error.h>
 
+#include <gtkmm/image.h>
+#include <gdkmm/color.h>
+#include <gdkmm/bitmap.h>
+
 #include <gtkmm2ext/gtk_ui.h>
 #include <gtkmm2ext/tearoff.h>
 #include <gtkmm2ext/utils.h>
 #include <ardour/location.h>
 #include <ardour/audioplaylist.h>
 #include <ardour/audioregion.h>
-#include <ardour/session.h>
+#include <ardour/region.h>
 #include <ardour/session_route.h>
 #include <ardour/tempo.h>
 #include <ardour/utils.h>
 
 #include "ardour_ui.h"
-#include "canvas-ruler.h"
-#include "canvas-simpleline.h"
-#include "canvas-simplerect.h"
-#include "canvas-waveview.h"
-#include "check_mark.h"
 #include "editor.h"
 #include "grouped_buttons.h"
 #include "keyboard.h"
-#include "library_ui.h"
 #include "marker.h"
 #include "playlist_selector.h"
 #include "regionview.h"
@@ -66,8 +63,9 @@
 #include "editing.h"
 #include "public_editor.h"
 #include "crossfade_edit.h"
-#include "extra_bind.h"
 #include "audio_time_axis.h"
+#include "canvas_impl.h"
+#include "actions.h"
 #include "gui_thread.h"
 
 #include "i18n.h"
@@ -80,35 +78,14 @@ using namespace std;
 using namespace sigc;
 using namespace ARDOUR;
 using namespace Gtk;
+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 */
-
-const double max_canvas_coordinate = 100000000.0;
 const double Editor::timebar_height = 15.0;
 
 #include "editor_xpms"
 
-static const gchar *route_list_titles[] = {
-       N_("Tracks"),
-       0
-};
-
-static const gchar *edit_group_list_titles[] = {
-       "foo", "bar", 0
-};
-
-static const gchar *region_list_display_titles[] = {
-       N_("Regions/name"), 
-       0
-};
-
-static const gchar *named_selection_display_titles[] = {
-       N_("Chunks"), 
-       0
-};
-
 static const int32_t slide_index = 0;
 static const int32_t splice_index = 1;
 
@@ -159,39 +136,77 @@ static const gchar *zoom_focus_strings[] = {
 
 /* Soundfile  drag-n-drop */
 
-enum {
-  TARGET_STRING,
-  TARGET_ROOTWIN,
-  TARGET_URL
-};
+Gdk::Cursor* Editor::cross_hair_cursor = 0;
+Gdk::Cursor* Editor::selector_cursor = 0;
+Gdk::Cursor* Editor::trimmer_cursor = 0;
+Gdk::Cursor* Editor::grabber_cursor = 0;
+Gdk::Cursor* Editor::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::wait_cursor = 0;
+Gdk::Cursor* Editor::timebar_cursor = 0;
 
-static GtkTargetEntry target_table[] = {
-  { "STRING",     0, TARGET_STRING },
-  { "text/plain", 0, TARGET_STRING },
-  { "text/uri-list", 0, TARGET_URL },
-  { "application/x-rootwin-drop", 0, TARGET_ROOTWIN }
-};
+bool
+Editor::on_key_press_event (GdkEventKey* ev)
+{
+       GtkWindow* win = gobj();
+
+       /* This exists to allow us to override the way GTK handles
+          key events. The normal sequence is:
+
+          a) event is delivered to a GtkWindow
+          b) accelerators/mnemonics are activated
+          c) if (b) didn't handle the event, propagate to
+              the focus widget and/or focus chain
+
+          The problem with this is that if the accelerators include
+          keys without modifiers, such as the space bar or the 
+          letter "e", then pressing the key while typing into
+          a text entry widget results in the accelerator being
+          activated, instead of the desired letter appearing
+          in the text entry.
+
+          There is no good way of fixing this, but this
+          represents a compromise. The idea is that 
+          key events involving modifiers (not Shift)
+          get routed into the activation pathway first, then
+          get propagated to the focus widget if necessary.
+          
+          If the key event doesn't involve modifiers,
+          we deliver to the focus widget first, thus allowing
+          it to get "normal text" without interference
+          from acceleration.
+
+          Of course, this can also be problematic: if there
+          is a widget with focus, then it will swallow
+          all "normal text" accelerators.
+       */
+
+       if (ev->state & ~Gdk::SHIFT_MASK) {
+               /* modifiers in effect, accelerate first */
+               if (!gtk_window_activate_key (win, ev)) {
+                       return gtk_window_propagate_key_event (win, ev);
+               } else {
+                       return true;
+               } 
+       }
+       
+       /* no modifiers, propagate first */
 
-static guint n_targets = sizeof(target_table) / sizeof(target_table[0]);
+       if (!gtk_window_propagate_key_event (win, ev)) {
+               return gtk_window_activate_key (win, ev);
+       } 
 
-GdkCursor* Editor::cross_hair_cursor = 0;
-GdkCursor* Editor::selector_cursor = 0;
-GdkCursor* Editor::trimmer_cursor = 0;
-GdkCursor* Editor::grabber_cursor = 0;
-GdkCursor* Editor::zoom_cursor = 0;
-GdkCursor* Editor::time_fx_cursor = 0;
-GdkCursor* Editor::fader_cursor = 0;
-GdkCursor* Editor::speaker_cursor = 0;
-GdkCursor* Editor::null_cursor = 0;
-GdkCursor* Editor::wait_cursor = 0;
-GdkCursor* Editor::timebar_cursor = 0;
 
-GdkPixmap *Editor::check_pixmap = 0;
-GdkBitmap *Editor::check_mask = 0;
-GdkPixmap *Editor::empty_pixmap = 0;
-GdkBitmap *Editor::empty_mask = 0;
+       return true;
+}
 
-extern gint route_list_compare_func (GtkCList*,gconstpointer,gconstpointer);
+void
+show_me_the_size (Requisition* r, const char* what)
+{
+       cerr << "size of " << what << " = " << r->width << " x " << r->height << endl;
+}
 
 Editor::Editor (AudioEngine& eng) 
        : engine (eng),
@@ -209,13 +224,14 @@ 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),
 
-         region_list_display (internationalize (region_list_display_titles)),
+         /* the values here don't matter: layout widgets
+            reset them as needed.
+         */
+
+         vertical_adjustment (0.0, 0.0, 400.0, 10),
+         horizontal_adjustment (0.0, 0.0, 1200.0, 20),
 
-         named_selection_display (internationalize (named_selection_display_titles)),
-         
          /* tool bar related */
 
          editor_mixer_button (_("editor\nmixer")),
@@ -244,9 +260,6 @@ Editor::Editor (AudioEngine& eng)
          snap_mode_label(_("Snap Mode")),
          zoom_focus_label (_("Zoom Focus")),
 
-         route_list (internationalize (route_list_titles)),
-         edit_group_list (internationalize (edit_group_list_titles)),
-         
          /* <CMT Additions> */
          image_socket_listener(0),
          /* </CMT Additions> */
@@ -265,13 +278,6 @@ Editor::Editor (AudioEngine& eng)
 
        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;
@@ -288,11 +294,9 @@ Editor::Editor (AudioEngine& eng)
        clicked_crossfadeview = 0;
        clicked_control_point = 0;
        latest_regionview = 0;
-       region_list_display_drag_region = 0;
        last_update_frame = 0;
        drag_info.item = 0;
        last_audition_region = 0;
-       region_list_button_region = 0;
        current_mixer_strip = 0;
        current_bbt_points = 0;
 
@@ -314,8 +318,8 @@ Editor::Editor (AudioEngine& eng)
        export_dialog = 0;
        show_gain_after_trim = false;
        no_zoom_repos_update = false;
-       need_wave_cursor = 0;
        ignore_route_list_reorder = false;
+       no_route_list_redisplay = false;
        verbose_cursor_on = true;
        route_removal = false;
        track_spacing = 0;
@@ -325,6 +329,7 @@ Editor::Editor (AudioEngine& eng)
        _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;
@@ -335,12 +340,9 @@ Editor::Editor (AudioEngine& eng)
        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;
@@ -362,7 +364,6 @@ 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 */
@@ -372,56 +373,42 @@ Editor::Editor (AudioEngine& eng)
        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()->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()->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.button_press_event.connect (mem_fun(*this, &Editor::hscroll_slider_button_press));
-       edit_hscrollbar.button_release_event.connect (mem_fun(*this, &Editor::hscroll_slider_button_release));
-       edit_hscrollbar.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_with_viewport (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));
 
-       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->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 ();
 
-       XMLNode* node = ARDOUR_UI::instance()->editor_settings();
-       set_state (*node);
-
        edit_cursor_clock.ValueChanged.connect (mem_fun(*this, &Editor::edit_cursor_clock_changed));
        
        time_canvas_vbox.pack_start (*minsec_ruler, false, false);
        time_canvas_vbox.pack_start (*smpte_ruler, false, false);
        time_canvas_vbox.pack_start (*frames_ruler, false, false);
        time_canvas_vbox.pack_start (*bbt_ruler, false, false);
-       time_canvas_vbox.pack_start (time_canvas_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");
@@ -473,37 +460,33 @@ Editor::Editor (AudioEngine& eng)
        
        time_button_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
        time_button_event_box.set_name ("TimebarLabelBase");
-       time_button_event_box.button_release_event.connect (mem_fun(*this, &Editor::ruler_label_button_release));
+       time_button_event_box.signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_label_button_release));
 
        /* these enable us to have a dedicated window (for cursor setting, etc.) 
           for the canvas areas.
        */
 
-       track_canvas_event_box.add (track_canvas_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_name ("EditorWindow");
 
-//     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,    Gtk::FILL|Gtk::EXPAND,  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,    Gtk::FILL,            0, 0, 0);
-       edit_packer.attach (time_canvas_event_box,          1, 2, 1, 2,    Gtk::FILL|Gtk::EXPAND, 0, 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 (edit_controls_scroller,         0, 1, 2, 3,    Gtk::FILL,                   Gtk::FILL|Gtk::EXPAND, 0, 0);
-       edit_packer.attach (track_canvas_event_box,         1, 2, 2, 3,    Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
-       edit_packer.attach (edit_vscrollbar,                2, 3, 2, 3,    0,                   Gtk::FILL|Gtk::EXPAND, 0, 0);
+       edit_packer.attach (controls_layout,         0, 1, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
+       edit_packer.attach (track_canvas_event_box,  1, 2, 2, 3,    FILL|EXPAND, FILL|EXPAND, 0, 0);
+       edit_packer.attach (edit_vscrollbar,         2, 3, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
 
        edit_frame.set_name ("BaseFrame");
-       edit_frame.set_shadow_type (Gtk::SHADOW_IN);
+       edit_frame.set_shadow_type (SHADOW_IN);
        edit_frame.add (edit_packer);
 
        zoom_in_button.set_name ("EditorTimeButton");
@@ -511,190 +494,188 @@ Editor::Editor (AudioEngine& eng)
        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 (zoom_in_button_xpm))));
-       zoom_out_button.add (*(manage (new Gtk::Image (zoom_out_button_xpm))));
-       zoom_out_full_button.add (*(manage (new Gtk::Image (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_list.set_name ("TrackListDisplay");
-       route_list.set_size_request (75,-1);
-       route_list.column_titles_active();
-       route_list.set_compare_func (route_list_compare_func);
-       route_list.set_shadow_type (Gtk::SHADOW_IN);
-       route_list.set_selection_mode (GTK_SELECTION_MULTIPLE);
-       route_list.set_reorderable (true);
-       edit_group_list.set_size_request (75, -1);
+       route_display_model = ListStore::create(route_display_columns);
+       route_list_display.set_model (route_display_model);
+       route_list_display.append_column (_("Tracks"), route_display_columns.text);
+       route_list_display.set_headers_visible (false);
+       route_list_display.set_name ("TrackListDisplay");
+       route_list_display.get_selection()->set_mode (SELECTION_MULTIPLE);
+       route_list_display.set_reorderable (true);
+       route_list_display.set_size_request (75,-1);
 
-       route_list_scroller.add (route_list);
-       route_list_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
+       route_display_model->signal_rows_reordered().connect (mem_fun (*this, &Editor::route_list_reordered));
+       route_display_model->set_sort_func (0, mem_fun (*this, &Editor::route_list_compare_func));
+       route_display_model->set_sort_column (0, SORT_ASCENDING);
 
-       route_list.select_row.connect (mem_fun(*this, &Editor::route_list_selected));
-       route_list.unselect_row.connect (mem_fun(*this, &Editor::route_list_unselected));
-       route_list.row_move.connect (mem_fun(*this, &Editor::queue_route_list_reordered));
-       route_list.click_column.connect (mem_fun(*this, &Editor::route_list_column_click));
+       route_list_scroller.add (route_list_display);
+       route_list_scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
+
+       route_list_display.get_selection()->signal_changed().connect (mem_fun (*this, &Editor::route_display_selection_changed));
 
        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");
 
-       edit_group_list.column_titles_hide();
-       edit_group_list.set_name ("MixerGroupList");
-       edit_group_list.set_shadow_type (Gtk::SHADOW_IN);
-       edit_group_list.set_selection_mode (GTK_SELECTION_MULTIPLE);
-       edit_group_list.set_reorderable (false);
-       edit_group_list.set_size_request (75, -1);
-       edit_group_list.set_column_auto_resize (0, true);
-       edit_group_list.columns_autosize ();
+       group_model = ListStore::create(group_columns);
+       edit_group_display.set_model (group_model);
+       edit_group_display.append_column (_("active"), group_columns.is_active);
+       edit_group_display.append_column (_("groupname"), group_columns.text);
+       edit_group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
+       edit_group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
+       edit_group_display.set_headers_visible (false);
 
-       edit_group_list_scroller.add (edit_group_list);
-       edit_group_list_scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
+       /* use checkbox for the active column */
 
-       edit_group_list_button.signal_clicked().connect (mem_fun(*this, &Editor::edit_group_list_button_clicked));
-       edit_group_list.button_press_event.connect (mem_fun(*this, &Editor::edit_group_list_button_press_event));
-       edit_group_list.select_row.connect (mem_fun(*this, &Editor::edit_group_selected));
-       edit_group_list.unselect_row.connect (mem_fun(*this, &Editor::edit_group_unselected));
+       CellRendererToggle *active_cell = dynamic_cast<CellRendererToggle*>(edit_group_display.get_column_cell_renderer (0));
+       active_cell->property_activatable() = true;
+       active_cell->property_radio() = false;
+
+       edit_group_display.set_name ("MixerGroupList");
+       edit_group_display.columns_autosize ();
+       edit_group_display.get_selection()->set_mode (SELECTION_MULTIPLE);
+       edit_group_display.set_reorderable (false);
 
-       list<string> stupid_list;
+       edit_group_display.set_size_request (75, -1);
 
-       stupid_list.push_back ("*");
-       stupid_list.push_back (_("-all-"));
+       edit_group_list_scroller.add (edit_group_display);
+       edit_group_list_scroller.set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 
-       edit_group_list.rows().push_back (stupid_list);
-       edit_group_list.rows().back().set_data (0);
-       edit_group_list.rows().back().select();
+       edit_group_list_button.signal_clicked().connect (mem_fun(*this, &Editor::edit_group_list_button_clicked));
+       edit_group_display.signal_button_press_event().connect (mem_fun(*this, &Editor::edit_group_list_button_press_event));
+       edit_group_display.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-"));
+       row[group_columns.routegroup] = 0;
+       edit_group_display.get_selection()->select (row);
+
        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);
-
-       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);
+       region_list_display.set_size_request (100, -1);
+       region_list_display.set_name ("RegionListDisplay");
 
-       route_group_vpane.add1 (route_list_frame);
-       route_group_vpane.add2 (edit_group_list_frame);
+       region_list_model = TreeStore::create (region_list_columns);
+       region_list_model->set_sort_func (0, mem_fun (*this, &Editor::region_list_sorter));
+       region_list_model->set_sort_column (0, SORT_ASCENDING);
 
-       list_vpacker.pack_start (route_group_vpane, true, true);
+       region_list_display.set_model (region_list_model);
+       CellRendererText* renderer = manage( new CellRendererText() );
+       region_list_display.append_column (_("Regions"), *renderer);
+       region_list_display.set_headers_visible (false);
 
-       region_list_hidden_node = region_list_display.rows().end();
+       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);
+       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.set_reorderable (true);
 
-       region_list_display.add_events (GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK|Gdk::POINTER_MOTION_MASK);
+       region_list_display.get_selection()->set_mode (SELECTION_MULTIPLE);
+       region_list_display.add_object_drag (region_list_columns.region.index(), "regions");
 
-       region_list_display.drag_dest_set (GTK_DEST_DEFAULT_ALL,
-                                          target_table, n_targets - 1,
-                                          GdkDragAction (Gdk::ACTION_COPY|Gdk::ACTION_MOVE));
-       region_list_display.drag_data_received.connect (mem_fun(*this, &Editor::region_list_display_drag_data_received));
+       /* setup DnD handling */
+       
+       list<TargetEntry> region_list_target_table;
+       
+       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));
 
        region_list_scroller.add (region_list_display);
-       region_list_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
+       region_list_scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
 
-       region_list_display.set_name ("RegionListDisplay");
-       region_list_display.set_size_request (100, -1);
-       region_list_display.column_titles_active ();
-       region_list_display.set_selection_mode (GTK_SELECTION_SINGLE);
-
-       region_list_display.set_data ("editor", this);
-       region_list_display.set_compare_func (_region_list_sorter);
-       region_list_sort_type = ByName;
-       reset_region_list_sort_type (region_list_sort_type);
-
-       region_list_display.set_flags (Gtk::CAN_FOCUS);
-
-       region_list_display.key_press_event.connect (mem_fun(*this, &Editor::region_list_display_key_press));
-       region_list_display.key_release_event.connect (mem_fun(*this, &Editor::region_list_display_key_release));
-       region_list_display.button_press_event.connect (mem_fun(*this, &Editor::region_list_display_button_press));
-       region_list_display.button_release_event.connect (mem_fun(*this, &Editor::region_list_display_button_release));
-       region_list_display.motion_notify_event.connect (mem_fun(*this, &Editor::region_list_display_motion));
-       region_list_display.enter_notify_event.connect (mem_fun(*this, &Editor::region_list_display_enter_notify));
-       region_list_display.leave_notify_event.connect (mem_fun(*this, &Editor::region_list_display_leave_notify));
-       region_list_display.select_row.connect (mem_fun(*this, &Editor::region_list_display_selected));
-       region_list_display.unselect_row.connect (mem_fun(*this, &Editor::region_list_display_unselected));
-       region_list_display.click_column.connect (mem_fun(*this, &Editor::region_list_column_click));
+       region_list_display.signal_key_press_event().connect (mem_fun(*this, &Editor::region_list_display_key_press));
+       region_list_display.signal_key_release_event().connect (mem_fun(*this, &Editor::region_list_display_key_release));
+       region_list_display.signal_button_press_event().connect (mem_fun(*this, &Editor::region_list_display_button_press), false);
+       region_list_display.signal_button_release_event().connect (mem_fun(*this, &Editor::region_list_display_button_release));
+       region_list_display.get_selection()->signal_changed().connect (mem_fun(*this, &Editor::region_list_selection_changed));
+       // region_list_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_display.set_name ("RegionListDisplay");
+       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.column_titles_active ();
-       named_selection_display.set_selection_mode (GTK_SELECTION_SINGLE);
-
-       named_selection_display.button_press_event.connect (mem_fun(*this, &Editor::named_selection_display_button_press));
-       named_selection_display.select_row.connect (mem_fun(*this, &Editor::named_selection_display_selected));
-       named_selection_display.unselect_row.connect (mem_fun(*this, &Editor::named_selection_display_unselected));
-
-       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.size_allocate.connect_after (bind (mem_fun(*this, &Editor::pane_allocation_handler),
-                                                                 static_cast<Gtk::Paned*> (&track_list_canvas_pane)));
-       canvas_region_list_pane.size_allocate.connect_after (bind (mem_fun(*this, &Editor::pane_allocation_handler),
-                                                                  static_cast<Gtk::Paned*> (&canvas_region_list_pane)));
-       route_group_vpane.size_allocate.connect_after (bind (mem_fun(*this, &Editor::pane_allocation_handler),
-                                                            static_cast<Gtk::Paned*> (&route_group_vpane)));
-       region_selection_vpane.size_allocate.connect_after (bind (mem_fun(*this, &Editor::pane_allocation_handler),
-                                                                 static_cast<Gtk::Paned*> (&region_selection_vpane)));
+       named_selection_display.set_name ("RegionListDisplay");
        
-       track_list_canvas_pane.pack1 (list_vpacker, true, true);
-       track_list_canvas_pane.pack2 (canvas_region_list_pane, true, true);
+       named_selection_display.get_selection()->set_mode (SELECTION_SINGLE);
+       named_selection_display.set_size_request (100, -1);
+       named_selection_display.signal_button_press_event().connect (mem_fun(*this, &Editor::named_selection_display_button_press), false);
+       named_selection_display.get_selection()->signal_changed().connect (mem_fun (*this, &Editor::named_selection_display_selection_changed));
 
-       /* provide special pane-handle event handling for easy "hide" action */
+       /* SNAPSHOTS */
 
-       /* 0: collapse to show left/upper child
-          1: collapse to show right/lower child
-       */
+       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);
 
-       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);
+       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);
 
-       route_group_vpane.button_release_event.connect (bind (ptr_fun (pane_handler), static_cast<Paned*> (&route_group_vpane)));
-       region_selection_vpane.button_release_event.connect (bind (ptr_fun (pane_handler), static_cast<Paned*> (&region_selection_vpane)));
-       canvas_region_list_pane.button_release_event.connect (bind (ptr_fun (pane_handler), static_cast<Paned*> (&canvas_region_list_pane)));
-       track_list_canvas_pane.button_release_event.connect (bind (ptr_fun (pane_handler), static_cast<Paned*> (&track_list_canvas_pane)));
+               the_notebook.append_page (region_list_scroller, _("Regions"));
+               the_notebook.append_page (route_list_scroller, _("Tracks/Busses"));
+       the_notebook.append_page (snapshot_display_scroller, _("Snapshots"));
+       the_notebook.append_page (edit_group_vbox, _("Edit Groups"));
+       the_notebook.append_page (named_selection_scroller, _("Chunks"));
+       the_notebook.set_show_tabs (true);
+       the_notebook.set_scrollable (true);
+       the_notebook.popup_enable ();
+
+       TearOff *notebook_tearoff = manage (new TearOff (the_notebook, true));
+       notebook_tearoff->tearoff_window().set_size_request (200, 400);
+
+       edit_pane.pack1 (edit_frame, true, true);
+       edit_pane.pack2 (*notebook_tearoff, true, true);
+       
+       edit_pane.signal_size_allocate().connect_notify (bind (mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
 
        top_hbox.pack_start (toolbar_frame, true, true);
 
        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);
@@ -702,18 +683,26 @@ 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);
+
        _playlist_selector = new PlaylistSelector();
-       _playlist_selector->delete_event.connect (bind (ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
+       _playlist_selector->signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
 
        AudioRegionView::AudioRegionViewGoingAway.connect (mem_fun(*this, &Editor::catch_vanishing_audio_regionview));
 
        /* nudge stuff */
 
-       nudge_forward_button.add (*(manage (new Gtk::Image (right_arrow_xpm))));
-       nudge_backward_button.add (*(manage (new Gtk::Image (left_arrow_xpm))));
+       nudge_forward_button.add (*(manage (new Image (Gdk::Pixbuf::create_from_xpm_data(right_arrow_xpm)))));
+       nudge_backward_button.add (*(manage (new Image (Gdk::Pixbuf::create_from_xpm_data(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"));
@@ -723,16 +712,14 @@ Editor::Editor (AudioEngine& eng)
 
        fade_context_menu.set_name ("ArdourContextMenu");
 
-       install_keybindings ();
-
        set_title (_("ardour: editor"));
        set_wmclass (_("ardour_editor"), "Ardour");
 
        add (vpacker);
        add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 
-       configure_event.connect (mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
-       delete_event.connect (mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::exit_on_main_window_close));
+       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));
 
        constructed = true;
        instant_save ();
@@ -814,369 +801,12 @@ Editor::left_track_canvas (GdkEventCrossing *ev)
 }
 
 
-void
-Editor::initialize_canvas ()
-{
-       gnome_canvas_init ();
-
-       track_gnome_canvas = gnome_canvas_new_aa ();
-
-       /* adjust sensitivity for "picking" items */
-
-       // GNOME_CANVAS(track_gnome_canvas)->close_enough = 2;
-
-       gtk_signal_connect (GTK_OBJECT(gnome_canvas_root (GNOME_CANVAS(track_gnome_canvas))), "event",
-                           (GtkSignalFunc) Editor::_track_canvas_event, this);
-       track_canvas = wrap (track_gnome_canvas);
-       track_canvas->set_name ("EditorMainCanvas");
-
-       track_canvas->add_events (Gdk::POINTER_MOTION_HINT_MASK);
-
-       track_canvas->leave_notify_event.connect (mem_fun(*this, &Editor::left_track_canvas));
-       
-       /* set up drag-n-drop */
-
-       track_canvas->drag_dest_set (GTK_DEST_DEFAULT_ALL,
-                                    target_table, n_targets - 1,
-                                    GdkDragAction (Gdk::ACTION_COPY|Gdk::ACTION_MOVE));
-       track_canvas->drag_data_received.connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));
-
-       /* stuff for the verbose canvas cursor */
-
-       string fontname = get_font_for_style (N_("VerboseCanvasCursor"));
-
-       verbose_canvas_cursor = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(track_gnome_canvas)),
-                                                    gnome_canvas_text_get_type(),
-                                                    "font", fontname.c_str(),
-                                                    "anchor", GTK_ANCHOR_NW,
-                                                    "fill_color_rgba", color_map[cVerboseCanvasCursor],
-                                                    NULL);
-       verbose_cursor_visible = false;
-
-       /* a group to hold time (measure) lines */
-
-       time_line_group = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(track_gnome_canvas)),
-                                                 gnome_canvas_group_get_type(),
-                                                 "x", 0.0,
-                                                 "y", 0.0,
-                                                 NULL);
-
-       cursor_group = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(track_gnome_canvas)),
-                                                 gnome_canvas_group_get_type(),
-                                                 "x", 0.0,
-                                                 "y", 0.0,
-                                                 NULL);
-       
-       time_gnome_canvas = gnome_canvas_new_aa ();
-       time_canvas = wrap (time_gnome_canvas);
-       time_canvas->set_name ("EditorTimeCanvas");
-
-       time_canvas->add_events (Gdk::POINTER_MOTION_HINT_MASK);
-
-       meter_group = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(time_gnome_canvas)),
-                                           gnome_canvas_group_get_type(),
-                                           "x", 0.0,
-                                           "y", 0.0,
-                                           NULL);
-       tempo_group = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(time_gnome_canvas)),
-                                           gnome_canvas_group_get_type(),
-                                           "x", 0.0,
-                                           "y", timebar_height,
-                                           NULL);
-       marker_group = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(time_gnome_canvas)),
-                                           gnome_canvas_group_get_type(),
-                                           "x", 0.0,
-                                           "y", timebar_height * 2.0,
-                                           NULL);
-       range_marker_group = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(time_gnome_canvas)),
-                                           gnome_canvas_group_get_type(),
-                                           "x", 0.0,
-                                           "y", timebar_height * 3.0,
-                                           NULL);
-       transport_marker_group = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(time_gnome_canvas)),
-                                           gnome_canvas_group_get_type(),
-                                           "x", 0.0,
-                                           "y", timebar_height * 4.0,
-                                           NULL);
-       
-       tempo_bar = gnome_canvas_item_new (GNOME_CANVAS_GROUP(tempo_group),
-                                        gnome_canvas_simplerect_get_type(),
-                                        "x1", 0.0,
-                                        "y1", 0.0,
-                                        "x2", max_canvas_coordinate,
-                                        "y2", timebar_height,
-                                        "fill_color_rgba", color_map[cTempoBar],
-                                        "outline_pixels", 0,
-                                         NULL);
-       meter_bar = gnome_canvas_item_new (GNOME_CANVAS_GROUP(meter_group),
-                                        gnome_canvas_simplerect_get_type(),
-                                        "x1", 0.0,
-                                        "y1", 0.0,
-                                        "x2", max_canvas_coordinate,
-                                        "y2", timebar_height,
-                                        "fill_color_rgba", color_map[cMeterBar],
-                                        "outline_pixels", 0,
-                                        NULL);
-       marker_bar = gnome_canvas_item_new (GNOME_CANVAS_GROUP(marker_group),
-                                         gnome_canvas_simplerect_get_type(),
-                                         "x1", 0.0,
-                                         "y1", 0.0,
-                                         "x2", max_canvas_coordinate,
-                                         "y2", timebar_height,
-                                         "fill_color_rgba", color_map[cMarkerBar],
-                                         "outline_pixels", 0,
-                                         NULL);
-       range_marker_bar = gnome_canvas_item_new (GNOME_CANVAS_GROUP(range_marker_group),
-                                               gnome_canvas_simplerect_get_type(),
-                                               "x1", 0.0,
-                                               "y1", 0.0,
-                                               "x2", max_canvas_coordinate,
-                                               "y2", timebar_height,
-                                               "fill_color_rgba", color_map[cRangeMarkerBar],
-                                               "outline_pixels", 0,
-                                               NULL);
-       transport_marker_bar = gnome_canvas_item_new (GNOME_CANVAS_GROUP(transport_marker_group),
-                                                   gnome_canvas_simplerect_get_type(),
-                                                   "x1", 0.0,
-                                                   "y1", 0.0,
-                                                   "x2", max_canvas_coordinate,
-                                                   "y2", timebar_height,
-                                                   "fill_color_rgba", color_map[cTransportMarkerBar],
-                                                   "outline_pixels", 0,
-                                                   NULL);
-       
-       range_bar_drag_rect = gnome_canvas_item_new (GNOME_CANVAS_GROUP(range_marker_group),
-                                                  gnome_canvas_simplerect_get_type(),
-                                                  "x1", 0.0,
-                                                  "y1", 0.0,
-                                                  "x2", 0.0,
-                                                  "y2", timebar_height,
-                                                  "fill_color_rgba", color_map[cRangeDragBarRectFill],
-                                                  "outline_color_rgba", color_map[cRangeDragBarRect],
-                                                  NULL);
-       gnome_canvas_item_hide (range_bar_drag_rect);
-
-       transport_bar_drag_rect = gnome_canvas_item_new (GNOME_CANVAS_GROUP(transport_marker_group),
-                                                      gnome_canvas_simplerect_get_type(),
-                                                      "x1", 0.0,
-                                                      "y1", 0.0,
-                                                      "x2", 0.0,
-                                                      "y2", timebar_height,
-                                                      "fill_color_rgba", color_map[cTransportDragRectFill],
-                                                      "outline_color_rgba", color_map[cTransportDragRect],
-                                                      NULL);
-       gnome_canvas_item_hide (transport_bar_drag_rect);
-
-       
-       marker_drag_line_points = gnome_canvas_points_new (2);
-       marker_drag_line_points->coords[0] = 0.0;
-       marker_drag_line_points->coords[1] = 0.0;
-       marker_drag_line_points->coords[2] = 0.0;
-       marker_drag_line_points->coords[3] = 0.0;
-       
-       
-       //cerr << "set mdl points, nc = " << marker_drag_line_points->num_points << endl;
-       marker_drag_line = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(track_gnome_canvas)),
-                                               gnome_canvas_line_get_type(),
-                                               "width_pixels", 1,
-                                               "fill_color_rgba", color_map[cMarkerDragLine],
-                                               "points", marker_drag_line_points,
-                                               NULL);
-       gnome_canvas_item_hide (marker_drag_line);
-
-       range_marker_drag_rect = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(track_gnome_canvas)),
-                                              gnome_canvas_simplerect_get_type(),
-                                              "x1", 0.0,
-                                              "y1", 0.0,
-                                              "x2", 0.0,
-                                              "y2", 0.0,
-                                              "fill_color_rgba", color_map[cRangeDragRectFill],
-                                              "outline_color_rgba", color_map[cRangeDragRect],
-                                              NULL);
-       gnome_canvas_item_hide (range_marker_drag_rect);
-       
-
-       transport_loop_range_rect = gnome_canvas_item_new ((GNOME_CANVAS_GROUP(time_line_group)),
-                                              gnome_canvas_simplerect_get_type(),
-                                              "x1", 0.0,
-                                              "y1", 0.0,
-                                              "x2", 0.0,
-                                              "y2", 0.0,
-                                              "fill_color_rgba", color_map[cTransportLoopRectFill],
-                                              "outline_color_rgba", color_map[cTransportLoopRect],
-                                              "outline_pixels", 1,
-                                              NULL);
-       gnome_canvas_item_hide (transport_loop_range_rect);
-
-       transport_punch_range_rect = gnome_canvas_item_new ((GNOME_CANVAS_GROUP(time_line_group)),
-                                              gnome_canvas_simplerect_get_type(),
-                                              "x1", 0.0,
-                                              "y1", 0.0,
-                                              "x2", 0.0,
-                                              "y2", 0.0,
-                                              "fill_color_rgba", color_map[cTransportPunchRectFill],
-                                              "outline_color_rgba", color_map[cTransportPunchRect],
-                                              "outline_pixels", 0,
-                                              NULL);
-       gnome_canvas_item_lower_to_bottom (transport_punch_range_rect);
-       gnome_canvas_item_lower_to_bottom (transport_loop_range_rect); // loop on the bottom
-       gnome_canvas_item_hide (transport_punch_range_rect);
-
-       transport_punchin_line = gnome_canvas_item_new ((GNOME_CANVAS_GROUP(time_line_group)),
-                                              gnome_canvas_simplerect_get_type(),
-                                              "x1", 0.0,
-                                              "y1", 0.0,
-                                              "x2", 0.0,
-                                              "y2", 0.0,
-                                              "outline_color_rgba", color_map[cPunchInLine],
-                                              "outline_pixels", 1,
-                                              NULL);
-       gnome_canvas_item_hide (transport_punchin_line);
-
-       transport_punchout_line  = gnome_canvas_item_new ((GNOME_CANVAS_GROUP(time_line_group)),
-                                              gnome_canvas_simplerect_get_type(),
-                                              "x1", 0.0,
-                                              "y1", 0.0,
-                                              "x2", 0.0,
-                                              "y2", 0.0,
-                                              "outline_color_rgba", color_map[cPunchOutLine],
-                                              "outline_pixels", 1,
-                                              NULL);
-       gnome_canvas_item_hide (transport_punchout_line);
-
-
-
-       
-       // used to show zoom mode active zooming
-       zoom_rect = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(track_gnome_canvas)),
-                                        gnome_canvas_simplerect_get_type(),
-                                        "x1", 0.0,
-                                        "y1", 0.0,
-                                        "x2", 0.0,
-                                        "y2", 0.0,
-                                        "fill_color_rgba", color_map[cZoomRectFill],
-                                        "outline_color_rgba", color_map[cZoomRect],
-                                        "outline_pixels", 1,
-                                        NULL);
-       gnome_canvas_item_hide (zoom_rect);
-       gtk_signal_connect (GTK_OBJECT(zoom_rect), "event",
-                           (GtkSignalFunc) PublicEditor::canvas_zoom_rect_event,
-                           this);
-
-       // used as rubberband rect
-       rubberband_rect = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(track_gnome_canvas)),
-                                              gnome_canvas_simplerect_get_type(),
-                                              "x1", 0.0,
-                                              "y1", 0.0,
-                                              "x2", 0.0,
-                                              "y2", 0.0,
-                                              "outline_color_rgba", color_map[cRubberBandRect],
-                                              "fill_color_rgba", (guint32) color_map[cRubberBandRectFill],
-                                              "outline_pixels", 1,
-                                              NULL);
-       gnome_canvas_item_hide (rubberband_rect);
-
-       
-
-       gtk_signal_connect (GTK_OBJECT(tempo_bar), "event",
-                           (GtkSignalFunc) PublicEditor::canvas_tempo_bar_event,
-                           this);
-
-       gtk_signal_connect (GTK_OBJECT(meter_bar), "event",
-                           (GtkSignalFunc) PublicEditor::canvas_meter_bar_event,
-                           this);
-
-       gtk_signal_connect (GTK_OBJECT(marker_bar), "event",
-                           (GtkSignalFunc) PublicEditor::canvas_marker_bar_event,
-                           this);
-
-       gtk_signal_connect (GTK_OBJECT(range_marker_bar), "event",
-                           (GtkSignalFunc) PublicEditor::canvas_range_marker_bar_event,
-                           this);
-
-       gtk_signal_connect (GTK_OBJECT(transport_marker_bar), "event",
-                           (GtkSignalFunc) PublicEditor::canvas_transport_marker_bar_event,
-                           this);
-       
-       /* separator lines */
-
-       tempo_line_points = gnome_canvas_points_new (2);
-       tempo_line_points->coords[0] = 0;
-       tempo_line_points->coords[1] = timebar_height;
-       tempo_line_points->coords[2] = max_canvas_coordinate;
-       tempo_line_points->coords[3] = timebar_height;
-       //cerr << "set tl points, nc = " << tempo_line_points->num_points << endl;
-       tempo_line = gnome_canvas_item_new (GNOME_CANVAS_GROUP(tempo_group),
-                                         gnome_canvas_line_get_type(),
-                                         "width_pixels", 0,
-                                         "fill_color", "black",
-                                         "points", tempo_line_points,
-                                         NULL);
-
-       // cerr << "tempo line @ " << tempo_line << endl;
-
-       meter_line_points = gnome_canvas_points_new (2);
-       meter_line_points->coords[0] = 0;
-       meter_line_points->coords[1] = timebar_height;
-       meter_line_points->coords[2] = max_canvas_coordinate;
-       meter_line_points->coords[3] = timebar_height;
-       // cerr << "set ml points, nc = " << tempo_line_points->num_points << endl;
-       meter_line = gnome_canvas_item_new (GNOME_CANVAS_GROUP(meter_group),
-                                         gnome_canvas_line_get_type(),
-                                         "width_pixels", 0,
-                                         "fill_color", "black",
-                                         "points", meter_line_points,
-                                         NULL);
-
-       // cerr << "meter line @ " << tempo_line << endl;
-       
-       marker_line_points = gnome_canvas_points_new (2);
-       marker_line_points->coords[0] = 0;
-       marker_line_points->coords[1] = timebar_height;
-       marker_line_points->coords[2] = max_canvas_coordinate;
-       marker_line_points->coords[3] = timebar_height;
-       // cerr << "set ml2 points, nc = " << marker_line_points->num_points << endl;
-       marker_line = gnome_canvas_item_new (GNOME_CANVAS_GROUP(marker_group),
-                                          gnome_canvas_line_get_type(),
-                                          "width_pixels", 0,
-                                          "fill_color", "black",
-                                          "points", marker_line_points,
-                                          NULL);
-       // cerr << "set rml points, nc = " << marker_line_points->num_points << endl;
-       range_marker_line = gnome_canvas_item_new (GNOME_CANVAS_GROUP(range_marker_group),
-                                          gnome_canvas_line_get_type(),
-                                          "width_pixels", 0,
-                                          "fill_color", "black",
-                                          "points", marker_line_points,
-                                          NULL);
-       // cerr << "set tml2 points, nc = " << marker_line_points->num_points << endl;
-       transport_marker_line = gnome_canvas_item_new (GNOME_CANVAS_GROUP(transport_marker_group),
-                                          gnome_canvas_line_get_type(),
-                                          "width_pixels", 0,
-                                          "fill_color", "black",
-                                          "points", marker_line_points,
-                                          NULL);
-
-       // cerr << "marker line @ " << marker_line << endl;
-
-       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;
-       gnome_canvas_set_scroll_region (GNOME_CANVAS(time_gnome_canvas), 0.0, 0.0, time_width, time_height);
-
-       edit_cursor = new Cursor (*this, "blue", (GtkSignalFunc) _canvas_edit_cursor_event);
-       playhead_cursor = new Cursor (*this, "red", (GtkSignalFunc) _canvas_playhead_cursor_event);
-
-       track_canvas->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
        */
@@ -1192,9 +822,8 @@ 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);
 }
@@ -1214,7 +843,7 @@ 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.
@@ -1235,12 +864,11 @@ Editor::set_frames_per_unit (double fpu)
        */
        
        if (session) {
-               track_canvas_scroller.get_hadjustment()->set_upper (session->current_end_frame() / frames_per_unit);
+               horizontal_adjustment.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));
        }
@@ -1280,10 +908,10 @@ 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())));
+               if (pixel >= horizontal_adjustment.get_upper()) {
+                       horizontal_adjustment.set_upper (frame_to_pixel (frame + (current_page_frames())));
                }
-               track_canvas_scroller.get_hadjustment()->set_value (frame/frames_per_unit);
+               horizontal_adjustment.set_value (frame/frames_per_unit);
                XOriginChanged (); /* EMIT_SIGNAL */
        }
 }
@@ -1304,15 +932,14 @@ 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);
@@ -1321,14 +948,8 @@ Editor::zoom_adjustment_changed ()
 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);
+       leftmost_frame = (jack_nframes_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
        
-       update_hscroller ();
        update_fixed_rulers ();
        
        if (!edit_hscroll_dragging) {
@@ -1342,7 +963,7 @@ void
 Editor::reposition_and_zoom (jack_nframes_t frame, double nfpu)
 {
        if (!repos_zoom_queued) {
-               Main::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;
        }
 }
@@ -1367,202 +988,10 @@ Editor::deferred_reposition_and_zoom (jack_nframes_t frame, double nfpu)
 }
 
 void
-Editor::realize_impl ()
-{
-       /* 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());
-       
-       Window::realize_impl ();
-
-       GdkPixmap* empty_pixmap = gdk_pixmap_new (get_window(), 1, 1, 1);
-       GdkPixmap* empty_bitmap = gdk_pixmap_new (get_window(), 1, 1, 1);
-       GdkColor white = { 0, 0, 0 };
-
-       null_cursor = gdk_cursor_new_from_pixmap (empty_pixmap, empty_bitmap, &white, &white, 0, 0);
-}
-
-void
-Editor::map__impl ()
+Editor::on_realize ()
 {
-       Window::map__impl ();
-
-       track_canvas_scroller.get_window().set_cursor (current_canvas_cursor);
-       time_canvas_scroller.get_window().set_cursor (timebar_cursor);
-}
-
-void
-Editor::track_canvas_allocate (GtkAllocation *alloc)
-{
-       canvas_width = alloc->width;
-       canvas_height = alloc->height;
-
-       if (session == 0 && !ARDOUR_UI::instance()->will_create_new_session_automatically()) {
-
-               string fontname = 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.
-               */
-                       
-               gint width;
-               gint lbearing;
-               gint rbearing;
-               gint ascent;
-               gint descent;
-               
-               /* this is a dummy widget that exists so that we can get the
-                  style from the RC file. 
-               */
-               
-               Label foo (_(txt2));
-               foo.set_name ("NoSessionMessage");
-               foo.ensure_style ();
-               
-               gdk_string_extents (foo.get_style()->get_font(),
-                                   _(txt2),
-                                   &lbearing,
-                                   &rbearing,
-                                   &width,
-                                   &ascent,
-                                   &descent);
-                       
-               if (first_action_message == 0) {
-                       
-                       char txt[strlen(txt1)+strlen(txt2)+1];
-                       
-                       /* merge both lines */
-                       
-                       strcpy (txt, _(txt1));
-                       strcat (txt, _(txt2));
-                       
-                       first_action_message = gnome_canvas_item_new (gnome_canvas_root(GNOME_CANVAS(track_gnome_canvas)),
-                                                                   gnome_canvas_text_get_type(),
-                                                                   "font", fontname.c_str(),
-                                                                   "fill_color_rgba", color_map[cFirstActionMessage],
-                                                                   "x", (gdouble) (canvas_width - width) / 2.0,
-                                                                   "y", (gdouble) (canvas_height/2.0) - (2.0 * (ascent+descent)),
-                                                                   "anchor", GTK_ANCHOR_NORTH_WEST,
-                                                                   "text", txt,
-                                                                   NULL);
-                       
-               } else {
-
-                       /* center it */
-
-                       gnome_canvas_item_set (first_action_message,
-                                            "x", (gdouble) (canvas_width - width) / 2.0,
-                                            "y", (gdouble) (canvas_height/2.0) - (2.0 * (ascent+descent)),
-                                            NULL);
-               }
-       }
-
-       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 (GtkAllocation *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->height;
-               canvas_alloc_width = alloc->width;
-       } else {
-               canvas_alloc_height = track_gnome_canvas->allocation.height;
-               canvas_alloc_width = track_gnome_canvas->allocation.width;
-       }
-
-       canvas_height = max (canvas_height, canvas_alloc_height);
-
-       gnome_canvas_set_scroll_region (GNOME_CANVAS(track_gnome_canvas), 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->coords[3] = canvas_height;
-               // cerr << "set mlA points, nc = " << marker_drag_line_points->num_points << endl;
-               gnome_canvas_item_set (marker_drag_line, "points", marker_drag_line_points, NULL);
-       }
-       if (range_marker_drag_rect) {
-               gnome_canvas_item_set (range_marker_drag_rect, "y1", 0.0, "y2", (double) canvas_height, NULL);
-       }
-       if (transport_loop_range_rect) {
-               gnome_canvas_item_set (transport_loop_range_rect, "y1", 0.0, "y2", (double) canvas_height, NULL);
-       }
-       if (transport_punch_range_rect) {
-               gnome_canvas_item_set (transport_punch_range_rect, "y1", 0.0, "y2", (double) canvas_height, NULL);
-       }
-       if (transport_punchin_line) {
-               gnome_canvas_item_set (transport_punchin_line, "y1", 0.0, "y2", (double) canvas_height, NULL);
-       }
-       if (transport_punchout_line) {
-               gnome_canvas_item_set (transport_punchout_line, "y1", 0.0, "y2", (double) canvas_height, NULL);
-       }
-       
-       
-       update_fixed_rulers ();
-
-       if (is_visible() && first_time) {
-               tempo_map_changed (Change (0));
-               first_time = false;
-       } else {
-               redisplay_tempo ();
-       }
+       Window::on_realize ();
+       Realized ();
 }
 
 void
@@ -1647,13 +1076,13 @@ 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);
        }
 }
 
@@ -1677,15 +1106,13 @@ Editor::handle_new_duration ()
        reset_scrolling_region ();
 
        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);
+               horizontal_adjustment.set_upper (session->current_end_frame() / frames_per_unit);
+               horizontal_adjustment.set_value (leftmost_frame/frames_per_unit);
        }
-       
-       update_hscroller ();
 }
 
 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));
        
@@ -1727,11 +1154,9 @@ Editor::connect_to_session (Session *t)
        session = t;
 
        if (first_action_message) {
-               gnome_canvas_item_hide (first_action_message);
+               first_action_message->hide();
        }
 
-       flush_track_canvas();
-
        update_title ();
 
        session->going_away.connect (mem_fun(*this, &Editor::session_going_away));
@@ -1762,7 +1187,7 @@ Editor::connect_to_session (Session *t)
 
        session->foreach_edit_group(this, &Editor::add_edit_group);
 
-       editor_mixer_button.toggled.connect (mem_fun(*this, &Editor::editor_mixer_button_toggled));
+       editor_mixer_button.signal_toggled().connect (mem_fun(*this, &Editor::editor_mixer_button_toggled));
        editor_mixer_button.set_name (X_("EditorMixerButton"));
 
        edit_cursor_clock.set_session (session);
@@ -1774,11 +1199,11 @@ Editor::connect_to_session (Session *t)
 
        switch (session->get_edit_mode()) {
        case Splice:
-               edit_mode_selector.get_entry()->set_text (edit_mode_strings[splice_index]);
+               edit_mode_selector.set_active_text (edit_mode_strings[splice_index]);
                break;
 
        case Slide:
-               edit_mode_selector.get_entry()->set_text (edit_mode_strings[slide_index]);
+               edit_mode_selector.set_active_text (edit_mode_strings[slide_index]);
                break;
        }
 
@@ -1814,7 +1239,7 @@ 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));
@@ -1827,21 +1252,13 @@ Editor::connect_to_session (Session *t)
 
        redisplay_regions ();
        redisplay_named_selections ();
+       redisplay_snapshots ();
 
-       route_list.freeze ();
-       route_list.clear ();
+       route_display_model->clear ();
+       no_route_list_redisplay = true;
        session->foreach_route (this, &Editor::handle_new_route);
-       // route_list.select_all ();
-       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);
-       }
+       no_route_list_redisplay = false;
+       route_list_display.get_selection()->select_all ();
 
        for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
                (static_cast<TimeAxisView*>(*i))->set_samples_per_unit (frames_per_unit);
@@ -1854,10 +1271,9 @@ 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_upper (session->current_end_frame() / frames_per_unit);
+       horizontal_adjustment.set_value (0);
 
-       update_hscroller ();
        restore_ruler_visibility ();
        tempo_map_changed (Change (0));
 
@@ -1873,85 +1289,74 @@ Editor::connect_to_session (Session *t)
 
        if (ARDOUR_UI::instance()->session_is_new ()) {
 
-               Gtk::CList_Helpers::RowList::iterator i;
-               Gtk::CList_Helpers::RowList& rowlist = route_list.rows();
-
-               route_list.freeze ();
+               TreeModel::Children rows = route_display_model->children();
+               TreeModel::Children::iterator i;
+       
+               //route_list_display.freeze ();
                
-               for (i = rowlist.begin(); i != rowlist.end(); ++i) {
-                       TimeAxisView *tv = (TimeAxisView *) i->get_data ();
+               for (i = rows.begin(); i != rows.end(); ++i) {
+                 TimeAxisView *tv =  (*i)[route_display_columns.tv];
                        AudioTimeAxisView *atv;
 
                        if ((atv = dynamic_cast<AudioTimeAxisView*>(tv)) != 0) {
                                if (atv->route().master()) {
-                                       (*i)->unselect ();
+                                       route_list_display.get_selection()->unselect (i);
+                                       //(*i)->unselect ();
                                }
                        }
                }
 
-               route_list.thaw ();
+               //route_list_display.thaw ();
        }
 }
 
 void
 Editor::build_cursors ()
 {
-       GdkPixmap *source, *mask;
-       GdkColor fg = { 0, 65535, 0, 0 }; /* Red. */
-       GdkColor bg = { 0, 0, 0, 65535 }; /* Blue. */
+       using namespace Gdk;
        
-       source = gdk_bitmap_create_from_data (NULL, hand_bits,
-                                             hand_width, hand_height);
-       mask = gdk_bitmap_create_from_data (NULL, handmask_bits,
-                                           handmask_width, handmask_height);
-       grabber_cursor = gdk_cursor_new_from_pixmap (source, mask, &fg, &bg, hand_x_hot, hand_y_hot);
-       gdk_pixmap_unref (source);
-       gdk_pixmap_unref (mask);
+       Gdk::Color mbg ("#000000" ); /* Black */
+       Gdk::Color mfg ("#0000ff" ); /* Blue. */
 
+       {
+               RefPtr<Bitmap> source, mask;
+               source = Bitmap::create (mag_bits, mag_width, mag_height);
+               mask = Bitmap::create (magmask_bits, mag_width, mag_height);
+               zoom_cursor = new Gdk::Cursor (source, mask, mfg, mbg, mag_x_hot, mag_y_hot);
+       }
 
-       GdkColor mbg = { 0, 0, 0, 0 }; /* Black */
-       GdkColor mfg = { 0, 0, 0, 65535 }; /* Blue. */
+       Gdk::Color fbg ("#ffffff" );
+       Gdk::Color ffg  ("#000000" );
        
-       source = gdk_bitmap_create_from_data (NULL, mag_bits,
-                                             mag_width, mag_height);
-       mask = gdk_bitmap_create_from_data (NULL, magmask_bits,
-                                           mag_width, mag_height);
-       zoom_cursor = gdk_cursor_new_from_pixmap (source, mask, &mfg, &mbg, mag_x_hot, mag_y_hot);
-       gdk_pixmap_unref (source);
-       gdk_pixmap_unref (mask);
-
-       GdkColor fbg = { 0, 65535, 65535, 65535 };
-       GdkColor ffg = { 0, 0, 0, 0 };
+       {
+               RefPtr<Bitmap> source, mask;
+               
+               source = Bitmap::create (fader_cursor_bits, fader_cursor_width, fader_cursor_height);
+               mask = Bitmap::create (fader_cursor_mask_bits, fader_cursor_width, fader_cursor_height);
+               fader_cursor = new Gdk::Cursor (source, mask, ffg, fbg, fader_cursor_x_hot, fader_cursor_y_hot);
+       }
        
-       source = gdk_bitmap_create_from_data (NULL, fader_cursor_bits,
-                                             fader_cursor_width, fader_cursor_height);
-       mask = gdk_bitmap_create_from_data (NULL, fader_cursor_mask_bits,
-                                           fader_cursor_width, fader_cursor_height);
-       fader_cursor = gdk_cursor_new_from_pixmap (source, mask, &ffg, &fbg, fader_cursor_x_hot, fader_cursor_y_hot);
-       gdk_pixmap_unref (source);
-       gdk_pixmap_unref (mask);
-
-       source = gdk_bitmap_create_from_data (NULL, speaker_cursor_bits,
-                                             speaker_cursor_width, speaker_cursor_height);
-       mask = gdk_bitmap_create_from_data (NULL, speaker_cursor_mask_bits,
-                                           speaker_cursor_width, speaker_cursor_height);
-       speaker_cursor = gdk_cursor_new_from_pixmap (source, mask, &ffg, &fbg, speaker_cursor_x_hot, speaker_cursor_y_hot);
-       gdk_pixmap_unref (source);
-       gdk_pixmap_unref (mask);
-
-       cross_hair_cursor = gdk_cursor_new (GDK_CROSSHAIR);
-       trimmer_cursor = gdk_cursor_new (GDK_SB_H_DOUBLE_ARROW);
-       selector_cursor = gdk_cursor_new (GDK_XTERM);
-       time_fx_cursor = gdk_cursor_new (GDK_SIZING);
-       wait_cursor = gdk_cursor_new (GDK_WATCH);
-       timebar_cursor = gdk_cursor_new (GDK_LEFT_PTR);
+       { 
+               RefPtr<Bitmap> source, mask;
+               source = Bitmap::create (speaker_cursor_bits, speaker_cursor_width, speaker_cursor_height);
+               mask = Bitmap::create (speaker_cursor_mask_bits, speaker_cursor_width, speaker_cursor_height);
+               speaker_cursor = new Gdk::Cursor (source, mask, ffg, fbg, speaker_cursor_x_hot, speaker_cursor_y_hot);
+       }
+
+       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, GnomeCanvasItem* item, ItemType item_type)
+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;
@@ -1966,35 +1371,35 @@ Editor::popup_fade_context_menu (int button, int32_t time, GnomeCanvasItem* item
        case FadeInItem:
        case FadeInHandleItem:
                if (arv->region.fade_in_active()) {
-                       items.push_back (MenuElem (_("Deactivate"), bind (slot (*arv, &AudioRegionView::set_fade_in_active), false)));
+                       items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_in_active), false)));
                } else {
-                       items.push_back (MenuElem (_("Activate"), bind (slot (*arv, &AudioRegionView::set_fade_in_active), true)));
+                       items.push_back (MenuElem (_("Activate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_in_active), true)));
                }
                
                items.push_back (SeparatorElem());
                
-               items.push_back (MenuElem (_("Linear"), bind (slot (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::Linear)));
-               items.push_back (MenuElem (_("Slowest"), bind (slot (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::LogB)));
-               items.push_back (MenuElem (_("Slow"), bind (slot (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::Fast)));
-               items.push_back (MenuElem (_("Fast"), bind (slot (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::LogA)));
-               items.push_back (MenuElem (_("Fastest"), bind (slot (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::Slow)));
+               items.push_back (MenuElem (_("Linear"), bind (mem_fun (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::Linear)));
+               items.push_back (MenuElem (_("Slowest"), bind (mem_fun (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::LogB)));
+               items.push_back (MenuElem (_("Slow"), bind (mem_fun (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::Fast)));
+               items.push_back (MenuElem (_("Fast"), bind (mem_fun (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::LogA)));
+               items.push_back (MenuElem (_("Fastest"), bind (mem_fun (arv->region, &AudioRegion::set_fade_in_shape), AudioRegion::Slow)));
                break;
 
        case FadeOutItem:
        case FadeOutHandleItem:
                if (arv->region.fade_out_active()) {
-                       items.push_back (MenuElem (_("Deactivate"), bind (slot (*arv, &AudioRegionView::set_fade_out_active), false)));
+                       items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_out_active), false)));
                } else {
-                       items.push_back (MenuElem (_("Activate"), bind (slot (*arv, &AudioRegionView::set_fade_out_active), true)));
+                       items.push_back (MenuElem (_("Activate"), bind (mem_fun (*arv, &AudioRegionView::set_fade_out_active), true)));
                }
                
                items.push_back (SeparatorElem());
                
-               items.push_back (MenuElem (_("Linear"), bind (slot (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::Linear)));
-               items.push_back (MenuElem (_("Slowest"), bind (slot (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::Fast)));
-               items.push_back (MenuElem (_("Slow"), bind (slot (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::LogB)));
-               items.push_back (MenuElem (_("Fast"), bind (slot (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::LogA)));
-               items.push_back (MenuElem (_("Fastest"), bind (slot (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::Slow)));
+               items.push_back (MenuElem (_("Linear"), bind (mem_fun (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::Linear)));
+               items.push_back (MenuElem (_("Slowest"), bind (mem_fun (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::Fast)));
+               items.push_back (MenuElem (_("Slow"), bind (mem_fun (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::LogB)));
+               items.push_back (MenuElem (_("Fast"), bind (mem_fun (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::LogA)));
+               items.push_back (MenuElem (_("Fastest"), bind (mem_fun (arv->region, &AudioRegion::set_fade_out_shape), AudioRegion::Slow)));
 
                break;
        default:
@@ -2062,16 +1467,18 @@ 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);
                                }
                        }
                }
@@ -2298,11 +1705,11 @@ Editor::add_region_context_items (StreamView* sv, Region* region, Menu_Helpers::
           become selected.
        */
 
-       region_menu->map_event.connect (bind (mem_fun(*this, &Editor::set_selected_regionview_from_map_event), sv, region));
+       region_menu->signal_map_event().connect (bind (mem_fun(*this, &Editor::set_selected_regionview_from_map_event), sv, region));
 
        items.push_back (MenuElem (_("Popup region editor"), mem_fun(*this, &Editor::edit_region)));
        items.push_back (MenuElem (_("Raise to top layer"), mem_fun(*this, &Editor::raise_region_to_top)));
-       items.push_back (MenuElem (_("Lower to bottom layer"), slot  (*this, &Editor::lower_region_to_bottom)));
+       items.push_back (MenuElem (_("Lower to bottom layer"), mem_fun  (*this, &Editor::lower_region_to_bottom)));
        items.push_back (SeparatorElem());
        items.push_back (MenuElem (_("Define sync point"), mem_fun(*this, &Editor::set_region_sync_from_edit_cursor)));
        items.push_back (MenuElem (_("Remove sync point"), mem_fun(*this, &Editor::remove_region_sync)));
@@ -2375,10 +1782,10 @@ Editor::add_region_context_items (StreamView* sv, Region* region, Menu_Helpers::
        items.push_back (SeparatorElem());
 
        items.push_back (MenuElem (_("Split"), (mem_fun(*this, &Editor::split_region))));
-       region_edit_menu_split_item = items.back();
+       region_edit_menu_split_item = &items.back();
 
        items.push_back (MenuElem (_("Make mono regions"), (mem_fun(*this, &Editor::split_multichannel_region))));
-       region_edit_menu_split_multichannel_item = items.back();
+       region_edit_menu_split_multichannel_item = &items.back();
 
        items.push_back (MenuElem (_("Duplicate"), (bind (mem_fun(*this, &Editor::duplicate_dialog), true))));
        items.push_back (MenuElem (_("Fill Track"), (mem_fun(*this, &Editor::region_fill_track))));
@@ -2586,7 +1993,7 @@ Editor::set_snap_to (SnapType st)
 {
        snap_type = st;
        vector<string> txt = internationalize (snap_type_strings);
-       snap_type_selector.get_entry()->set_text (txt[(int)st]);
+       snap_type_selector.set_active_text (txt[(int)st]);
 
        instant_save ();
 
@@ -2608,7 +2015,7 @@ Editor::set_snap_mode (SnapMode mode)
 {
        snap_mode = mode;
        vector<string> txt = internationalize (snap_mode_strings);
-       snap_mode_selector.get_entry()->set_text (txt[(int)mode]);
+       snap_mode_selector.set_active_text (txt[(int)mode]);
 
        instant_save ();
 }
@@ -2677,7 +2084,7 @@ Editor::set_state (const XMLNode& node)
        }
 
        set_default_size(width, height);
-       set_uposition(x, y-yoff);
+       move (x, y-yoff);
 
        if ((prop = node.property ("zoom-focus"))) {
                set_zoom_focus ((ZoomFocus) atoi (prop->value()));
@@ -2715,8 +2122,13 @@ Editor::set_state (const XMLNode& node)
 
        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_("ToggleFollowPlayhead"));
+               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"))) {
@@ -2753,12 +2165,12 @@ Editor::get_state ()
        char buf[32];
 
        if (is_realized()) {
-               Gdk_Window win = get_window();
+               Glib::RefPtr<Gdk::Window> win = get_window();
                
                int x, y, xoff, yoff, width, height;
-               win.get_root_origin(x, y);
-               win.get_position(xoff, yoff);
-               win.get_size(width, height);
+               win->get_root_origin(x, y);
+               win->get_position(xoff, yoff);
+               win->get_size(width, height);
                
                XMLNode* geometry = new XMLNode ("geometry");
                char buf[32];
@@ -2774,14 +2186,8 @@ 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);
        }
@@ -3042,7 +2448,7 @@ Editor::snap_to (jack_nframes_t& start, int32_t direction, bool for_mark)
 void
 Editor::setup_toolbar ()
 {
-       nstring pixmap_path;
+       string pixmap_path;
        vector<ToggleButton *> mouse_mode_buttons;
 
        mouse_mode_buttons.push_back (&mouse_move_button);
@@ -3069,10 +2475,10 @@ 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), 
-                                                 static_cast<Gtk::Widget*>(&mouse_mode_button_table)));
-       mouse_mode_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Gtk::Box*> (&toolbar_hbox), 
-                                                 static_cast<Gtk::Widget*> (&mouse_mode_button_table), 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_move_button.set_name ("MouseModeButton");
        mouse_select_button.set_name ("MouseModeButton");
@@ -3088,21 +2494,21 @@ 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.toggled.connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseRange));
-       mouse_select_button.button_release_event.connect (mem_fun(*this, &Editor::mouse_select_button_release));
+       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));
 
-       mouse_move_button.toggled.connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseObject));
-       mouse_gain_button.toggled.connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseGain));
-       mouse_zoom_button.toggled.connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseZoom));
-       mouse_timefx_button.toggled.connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseTimeFX));
-       mouse_audition_button.toggled.connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseAudition));
+       mouse_move_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseObject));
+       mouse_gain_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseGain));
+       mouse_zoom_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseZoom));
+       mouse_timefx_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseTimeFX));
+       mouse_audition_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseAudition));
 
        // mouse_move_button.set_active (true);
 
@@ -3121,87 +2527,74 @@ Editor::setup_toolbar ()
        edit_mode_label.set_name ("ToolBarLabel");
 
        edit_mode_selector.set_name ("EditModeSelector");
-       edit_mode_selector.get_entry()->set_name ("EditModeSelector");
-       edit_mode_selector.get_popwin()->set_name ("EditModeSelector");
 
        edit_mode_box.set_spacing (3);
        edit_mode_box.set_border_width (3);
 
        /* XXX another disgusting hack because of the way combo boxes size themselves */
 
-       Gtkmm2ext::set_size_request_to_display_given_text (*edit_mode_selector.get_entry(), "EdgtMode", 2, 10);
-       edit_mode_selector.set_popdown_strings (internationalize (edit_mode_strings));
-       edit_mode_selector.set_value_in_list (true, false);
-
+       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);
 
-       edit_mode_selector.get_popwin()->unmap_event.connect (mem_fun(*this, &Editor::edit_mode_selection_done));
+       edit_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_mode_selection_done));
 
        /* Snap Type */
 
        snap_type_label.set_name ("ToolBarLabel");
 
        snap_type_selector.set_name ("SnapTypeSelector");
-       snap_type_selector.get_entry()->set_name ("SnapTypeSelector");
-       snap_type_selector.get_popwin()->set_name ("SnapTypeSelector");
 
        snap_type_box.set_spacing (3);
        snap_type_box.set_border_width (3);
 
        /* XXX another disgusting hack because of the way combo boxes size themselves */
 
-       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.get_entry(), "Region bounds", 2+FUDGE, 10);
-       snap_type_selector.set_popdown_strings (internationalize (snap_type_strings));
-       snap_type_selector.set_value_in_list (true, false);
+       Gtkmm2ext::set_size_request_to_display_given_text (snap_type_selector, "SMPTE Seconds", 2+FUDGE, 10);
+       set_popdown_strings (snap_type_selector, internationalize (snap_type_strings));
 
        snap_type_box.pack_start (snap_type_label, false, false);
        snap_type_box.pack_start (snap_type_selector, false, false);
 
-       snap_type_selector.get_popwin()->unmap_event.connect (mem_fun(*this, &Editor::snap_type_selection_done));
+       snap_type_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_type_selection_done));
 
        /* Snap mode, not snap type */
 
        snap_mode_label.set_name ("ToolBarLabel");
 
        snap_mode_selector.set_name ("SnapModeSelector");
-       snap_mode_selector.get_entry()->set_name ("SnapModeSelector");
-       snap_mode_selector.get_popwin()->set_name ("SnapModeSelector");
        
        snap_mode_box.set_spacing (3);
        snap_mode_box.set_border_width (3);
 
-       Gtkmm2ext::set_size_request_to_display_given_text (*snap_mode_selector.get_entry(), "SngpMode", 2, 10);
-       snap_mode_selector.set_popdown_strings (internationalize (snap_mode_strings));
-       snap_mode_selector.set_value_in_list (true, false);
+       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);
        snap_mode_box.pack_start (snap_mode_selector, false, false);
 
-       snap_mode_selector.get_popwin()->unmap_event.connect (mem_fun(*this, &Editor::snap_mode_selection_done));
+       snap_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_mode_selection_done));
 
        /* Zoom focus mode */
 
        zoom_focus_label.set_name ("ToolBarLabel");
 
        zoom_focus_selector.set_name ("ZoomFocusSelector");
-       zoom_focus_selector.get_entry()->set_name ("ZoomFocusSelector");
-       zoom_focus_selector.get_popwin()->set_name ("ZoomFocusSelector");
 
        zoom_focus_box.set_spacing (3);
        zoom_focus_box.set_border_width (3);
 
        /* XXX another disgusting hack because of the way combo boxes size themselves */
 
-       Gtkmm2ext::set_size_request_to_display_given_text (*zoom_focus_selector.get_entry(), "Edgt Cursor", 2, 10);
-       zoom_focus_selector.set_popdown_strings (internationalize (zoom_focus_strings));
-       zoom_focus_selector.set_value_in_list (true, false);
+       Gtkmm2ext::set_size_request_to_display_given_text (zoom_focus_selector, "Edgt Cursor", 2+FUDGE, 10);
+       set_popdown_strings (zoom_focus_selector, internationalize (zoom_focus_strings));
 
        zoom_focus_box.pack_start (zoom_focus_label, false, false);
        zoom_focus_box.pack_start (zoom_focus_selector, false, false);
 
-       zoom_focus_selector.get_popwin()->unmap_event.connect (mem_fun(*this, &Editor::zoom_focus_selection_done));
+       zoom_focus_selector.signal_changed().connect (mem_fun(*this, &Editor::zoom_focus_selection_done));
 
        /* selection/cursor clocks */
 
@@ -3212,23 +2605,35 @@ 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"));
+
+       /* 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.
+
+          this also applies to the various toolbar combos
+       */
 
-       toolbar_selection_clock_table.set_border_width (5);
-       toolbar_selection_clock_table.set_col_spacings (2);
-       toolbar_selection_clock_table.set_homogeneous (false);
+       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);
 
-//     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, 0, 0, 0, 0);
+       HBox* edit_clock_hbox = manage (new HBox());
+       VBox* edit_clock_vbox = manage (new VBox());
 
-//     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, 0, 0);
+       edit_clock_hbox->pack_start (edit_cursor_clock, false, 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);
 
-//     toolbar_clock_vbox.set_spacing (2);
-//     toolbar_clock_vbox.set_border_width (10);
        /* the editor/mixer button will be enabled at session connect */
 
        editor_mixer_button.set_active(false);
@@ -3237,7 +2642,7 @@ Editor::setup_toolbar ()
        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);
@@ -3270,10 +2675,11 @@ 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), 
-                                            static_cast<Gtk::Widget*>(hbox)));
-       tools_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Gtk::Box*> (&toolbar_hbox), 
-                                            static_cast<Gtk::Widget*> (hbox), 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));
+
 
        toolbar_hbox.set_spacing (8);
        toolbar_hbox.set_border_width (2);
@@ -3284,7 +2690,7 @@ 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);
 }
@@ -3386,130 +2792,80 @@ Editor::stop_canvas_autoscroll ()
 
 int
 Editor::convert_drop_to_paths (vector<string>& paths, 
-                              GdkDragContext     *context,
+                              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;
-
-       gnome_canvas_window_to_world (GNOME_CANVAS(track_gnome_canvas), (double) x, (double) 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;
+                       url_decode (p);
+                       cerr << "adding " << p << endl;
+                       paths.push_back (p.substr (7));
                }
-
        }
 
-  out:
-       gtk_drag_finish (context, TRUE, FALSE, time);
+       return 0;
 }
 
 void
@@ -3546,7 +2902,7 @@ Editor::get_memento () const
        State *state = new State;
 
        store_state (*state);
-       return bind (slot (*(const_cast<Editor*>(this)), &Editor::restore_state), state);
+       return bind (mem_fun (*(const_cast<Editor*>(this)), &Editor::restore_state), state);
 }
 
 void
@@ -3587,19 +2943,6 @@ Editor::commit_reversible_command ()
        }
 }
 
-void
-Editor::flush_track_canvas ()
-{
-       /* 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_gnome_canvas));
-       //gtk_main_iteration ();
-}
-
 void
 Editor::set_selected_track_from_click (bool add, bool with_undo, bool no_remove)
 {
@@ -3810,7 +3153,7 @@ Editor::set_selected_regionview_from_region_list (Region& r, bool add)
        commit_reversible_command () ;
 }
 
-gint
+bool
 Editor::set_selected_regionview_from_map_event (GdkEventAny* ev, StreamView* sv, Region* r)
 {
        AudioRegionView* rv;
@@ -3869,11 +3212,11 @@ void
 Editor::set_edit_menu (Menu& menu)
 {
        edit_menu = &menu;
-       edit_menu->map_.connect (mem_fun(*this, &Editor::edit_menu_map_handler));
+       edit_menu->signal_map_event().connect (mem_fun(*this, &Editor::edit_menu_map_handler));
 }
 
-void
-Editor::edit_menu_map_handler ()
+bool
+Editor::edit_menu_map_handler (GdkEventAny* ev)
 {
        using namespace Menu_Helpers;
        MenuList& edit_items = edit_menu->items();
@@ -3884,46 +3227,46 @@ Editor::edit_menu_map_handler ()
        edit_items.clear ();
 
        if (session == 0) {
-               return;
+               return false;
        }
 
        if (session->undo_depth() == 0) {
                label = _("Undo");
        } else {
-               label = compose(_("Undo (%1)"), session->next_undo());
+               label = string_compose(_("Undo (%1)"), session->next_undo());
        }
        
        edit_items.push_back (MenuElem (label, bind (mem_fun(*this, &Editor::undo), 1U)));
        
        if (session->undo_depth() == 0) {
-               edit_items.back()->set_sensitive (false);
+               edit_items.back().set_sensitive (false);
        }
        
        if (session->redo_depth() == 0) {
                label = _("Redo");
        } else {
-               label = compose(_("Redo (%1)"), session->next_redo());
+               label = string_compose(_("Redo (%1)"), session->next_redo());
        }
        
        edit_items.push_back (MenuElem (label, bind (mem_fun(*this, &Editor::redo), 1U)));
        if (session->redo_depth() == 0) {
-               edit_items.back()->set_sensitive (false);
+               edit_items.back().set_sensitive (false);
        }
 
        vector<MenuItem*> mitems;
 
        edit_items.push_back (SeparatorElem());
        edit_items.push_back (MenuElem (_("Cut"), mem_fun(*this, &Editor::cut)));
-       mitems.push_back (edit_items.back());
+       mitems.push_back (&edit_items.back());
        edit_items.push_back (MenuElem (_("Copy"), mem_fun(*this, &Editor::copy)));
-       mitems.push_back (edit_items.back());
+       mitems.push_back (&edit_items.back());
        edit_items.push_back (MenuElem (_("Paste"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
-       mitems.push_back (edit_items.back());
+       mitems.push_back (&edit_items.back());
        edit_items.push_back (SeparatorElem());
        edit_items.push_back (MenuElem (_("Align"), bind (mem_fun(*this, &Editor::align), ARDOUR::SyncPoint)));
-       mitems.push_back (edit_items.back());
+       mitems.push_back (&edit_items.back());
        edit_items.push_back (MenuElem (_("Align Relative"), bind (mem_fun(*this, &Editor::align_relative), ARDOUR::SyncPoint)));
-       mitems.push_back (edit_items.back());
+       mitems.push_back (&edit_items.back());
        edit_items.push_back (SeparatorElem());
 
        if (selection->empty()) {
@@ -3952,8 +3295,10 @@ Editor::edit_menu_map_handler ()
 
        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);
+               edit_items.back().set_sensitive (false);
        }
+
+       return false;
 }
 
 void
@@ -3972,51 +3317,27 @@ 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 (slot (win, &ArdourDialog::stop), 0));
-       entry.activate.connect (bind (slot (win, &ArdourDialog::stop), 0));
-       cancel_button.signal_clicked().connect (bind (slot (win, &ArdourDialog::stop), 1));
+       win.set_position (WIN_POS_MOUSE);
 
-       entry.signal_focus_in_event().connect (slot (ARDOUR_UI::generic_focus_in_event));
-       entry.signal_focus_out_event().connect (slot (ARDOUR_UI::generic_focus_out_event));
-       
        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);
-       win.realize ();
-       win.get_window().set_decorations (GdkWMDecoration (GDK_DECOR_BORDER|GDK_DECOR_RESIZEH));
-
        entry.grab_focus ();
 
-       win.run ();
+        // GTK2FIX
+       // win.get_window()->set_decorations (Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH));
 
-       if (win.run_status() != 0) {
+
+       switch (win.run ()) {
+       case RESPONSE_ACCEPT:
+               break;
+       default:
                return;
        }
 
@@ -4037,41 +3358,43 @@ Editor::duplicate_dialog (bool dup_region)
 void
 Editor::show_verbose_canvas_cursor ()
 {
-       gnome_canvas_item_raise_to_top (verbose_canvas_cursor);
-       gnome_canvas_item_show (verbose_canvas_cursor);
+        verbose_canvas_cursor->raise_to_top();
+        verbose_canvas_cursor->show();
        verbose_cursor_visible = true;
 }
 
 void
 Editor::hide_verbose_canvas_cursor ()
 {
-       gnome_canvas_item_hide (verbose_canvas_cursor);
+        verbose_canvas_cursor->hide();
        verbose_cursor_visible = false;
 }
 
 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}
        */
-       gnome_canvas_item_set (verbose_canvas_cursor, "text", txt.c_str(), "x", x, "y", y, NULL);       
+       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)
 {
-       gnome_canvas_item_set (verbose_canvas_cursor, "text", txt.c_str(), NULL);
+       verbose_canvas_cursor->property_text() = txt.c_str();
 }
 
-gint
-Editor::edit_mode_selection_done (GdkEventAny *ev)
+void
+Editor::edit_mode_selection_done ()
 {
        if (session == 0) {
-               return FALSE;
+               return;
        }
 
-       string choice = edit_mode_selector.get_entry()->get_text();
+       string choice = edit_mode_selector.get_active_text();
        EditMode mode = Slide;
 
        if (choice == _("Splice")) {
@@ -4081,18 +3404,16 @@ Editor::edit_mode_selection_done (GdkEventAny *ev)
        }
 
        session->set_edit_mode (mode);
-
-       return FALSE;
 }      
 
-gint
-Editor::snap_type_selection_done (GdkEventAny *ev)
+void
+Editor::snap_type_selection_done ()
 {
        if (session == 0) {
-               return FALSE;
+               return;
        }
 
-       string choice = snap_type_selector.get_entry()->get_text();
+       string choice = snap_type_selector.get_active_text();
        SnapType snaptype = SnapToFrame;
        
        if (choice == _("Beats/3")) {
@@ -4138,16 +3459,16 @@ Editor::snap_type_selection_done (GdkEventAny *ev)
        }
        
        set_snap_to (snaptype);
-
-       return FALSE;
 }      
 
-gint
-Editor::snap_mode_selection_done (GdkEventAny *ev)
+void
+Editor::snap_mode_selection_done ()
 {
-       if(session == 0) return FALSE;
+       if(session == 0) {
+               return;
+       }
 
-       string choice = snap_mode_selector.get_entry()->get_text();
+       string choice = snap_mode_selector.get_active_text();
        SnapMode mode = SnapNormal;
 
        if (choice == _("Normal")) {
@@ -4157,18 +3478,16 @@ Editor::snap_mode_selection_done (GdkEventAny *ev)
        }
 
        set_snap_mode (mode);
-
-       return FALSE;
 }
 
-gint
-Editor::zoom_focus_selection_done (GdkEventAny *ev)
+void
+Editor::zoom_focus_selection_done ()
 {
        if (session == 0) {
-               return FALSE;
+               return;
        }
 
-       string choice = zoom_focus_selector.get_entry()->get_text();
+       string choice = zoom_focus_selector.get_active_text();
        ZoomFocus focus_type = ZoomFocusLeft;
 
        if (choice == _("Left")) {
@@ -4184,8 +3503,6 @@ Editor::zoom_focus_selection_done (GdkEventAny *ev)
        } 
 
        set_zoom_focus (focus_type);
-
-       return FALSE;
 }      
 
 gint
@@ -4257,29 +3574,6 @@ Editor::point_selection_changed ()
        }
 }
 
-void
-Editor::run_sub_event_loop ()
-{
-       Keyboard::the_keyboard().allow_focus (true);
-       sub_event_loop_status = 0;
-       Main::run ();
-}
-
-void
-Editor::finish_sub_event_loop (int status)
-{
-       Main::quit ();
-       Keyboard::the_keyboard().allow_focus (false);
-       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)
 {
@@ -4336,7 +3630,7 @@ Editor::set_zoom_focus (ZoomFocus f)
        if (zoom_focus != f) {
                zoom_focus = f;
                vector<string> txt = internationalize (zoom_focus_strings);
-               zoom_focus_selector.get_entry()->set_text (txt[(int)f]);
+               zoom_focus_selector.set_active_text (txt[(int)f]);
                ZoomFocusChanged (); /* EMIT_SIGNAL */
 
                instant_save ();
@@ -4350,7 +3644,7 @@ Editor::ensure_float (Window& win)
 }
 
 void 
-Editor::pane_allocation_handler (GtkAllocation *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.
@@ -4361,7 +3655,7 @@ Editor::pane_allocation_handler (GtkAllocation *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) {
@@ -4372,89 +3666,37 @@ Editor::pane_allocation_handler (GtkAllocation *alloc, Gtk::Paned* which)
                height = atoi(geometry->property("y_size")->value());
        }
 
-       if (which == static_cast<Gtk::Paned*> (&track_list_canvas_pane)) {
+       if (which == static_cast<Paned*> (&edit_pane)) {
 
-               if (done[0]) {
+               if (done) {
                        return;
                }
 
-               if (!geometry || (prop = geometry->property("track_list_canvas_pane_pos")) == 0) {
-                       pos = 75;
+               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[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 (done[2]) {
-                       return;
-               }
-
-               if (!geometry || (prop = geometry->property("route_group_pane_pos")) == 0) {
-                       pos = width - (95 * 2);
-                       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);
                }
        }
 }
 
 void
-Editor::detach_tearoff (Gtk::Box* b, Gtk::Widget* 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->get_toplevel());
 }
 
 void
-Editor::reattach_tearoff (Gtk::Box* b, Gtk::Widget* 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);
@@ -4475,6 +3717,16 @@ Editor::set_show_measures (bool yn)
        }
 }
 
+void
+Editor::toggle_follow_playhead ()
+{
+       RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleFollowPlayhead"));
+       if (act) {
+               RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
+               set_follow_playhead (tact->get_active());
+       }
+}
+
 void
 Editor::set_follow_playhead (bool yn)
 {
@@ -4507,16 +3759,18 @@ Editor::edit_xfade (Crossfade* xfade)
                
        ensure_float (cew);
        
-       cew.ok_button.signal_clicked().connect (bind (slot (cew, &ArdourDialog::stop), 1));
-       cew.cancel_button.signal_clicked().connect (bind (slot (cew, &ArdourDialog::stop), 0));
-       cew.delete_event.connect (slot (cew, &ArdourDialog::wm_doi_event_stop));
+       // 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&
@@ -4540,64 +3794,41 @@ 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);
+       horizontal_adjustment.set_upper (location->end() / frames_per_unit);
 }
 
 int
 Editor::playlist_deletion_dialog (Playlist* pl)
 {
        ArdourDialog dialog ("playlist deletion dialog");
-       Label  label (compose (_("Playlist %1 is currently unused.\n"
+       Label  label (string_compose (_("Playlist %1 is currently unused.\n"
                                 "If left alone, no audio files used by it will be cleaned.\n"
                                 "If deleted, audio files used by it alone by will cleaned."),
                               pl->name()));
-       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 (slot (dialog, &ArdourDialog::stop), 0));
-       keep_button.signal_clicked().connect (bind (slot (dialog, &ArdourDialog::stop), 1));
-       abort_button.signal_clicked().connect (bind (slot (dialog, &ArdourDialog::stop), 2));
+       dialog.set_position (WIN_POS_CENTER);
+       dialog.get_vbox()->pack_start (label);
 
-       dialog.realize ();
-       dialog.get_window().set_decorations (GdkWMDecoration (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;
-               break;
-       default:
+
+       case RESPONSE_REJECT:
                /* keep the playlist */
                return 1;
+               break;
+
+       default:
+               break;
        }
+
+       return -1;
 }
 
 bool
@@ -4653,3 +3884,88 @@ 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();
+               
+               cerr << "snapshot selected\n";
+
+               Glib::ustring snap_name = (*i)[snapshot_display_columns.real_name];
+
+               cerr << "name is " << snap_name << endl;
+
+               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 ();
+}
+