livetrax/gtk2_ardour/editor_actions.cc

/*
    Copyright (C) 2000-2007 Paul Davis

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include <gio/gio.h>
#include <gtk/gtkiconfactory.h>

#include "gtkmm2ext/tearoff.h"

#include "ardour/ardour.h"
#include "ardour/profile.h"
#include "ardour/session.h"

#include "actions.h"
#include "ardour_ui.h"
#include "editing.h"
#include "editor.h"
#include "gui_thread.h"
#include "time_axis_view.h"
#include "utils.h"
#include "i18n.h"
#include "audio_time_axis.h"
#include "editor_group_tabs.h"
#include "editor_routes.h"
#include "editor_regions.h"

using namespace Gtk;
using namespace Glib;
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Editing;

void
Editor::register_actions ()
{
	RefPtr<Action> act;

	editor_actions = ActionGroup::create (X_("Editor"));

	/* non-operative menu items for menu bar */

	ActionManager::register_action (editor_actions, X_("AlignMenu"), _("Align"));
	ActionManager::register_action (editor_actions, X_("Autoconnect"), _("Autoconnect"));
	ActionManager::register_action (editor_actions, X_("Crossfades"), _("Crossfades"));
	ActionManager::register_action (editor_actions, X_("Edit"), _("Edit"));
	ActionManager::register_action (editor_actions, X_("EditCursorMovementOptions"), _("Move Selected Marker"));
	ActionManager::register_action (editor_actions, X_("EditSelectRangeOptions"), _("Select Range Operations"));
	ActionManager::register_action (editor_actions, X_("EditSelectRegionOptions"), _("Select Regions"));
	ActionManager::register_action (editor_actions, X_("EditPointMenu"), _("Edit Point"));
	ActionManager::register_action (editor_actions, X_("FadeMenu"), _("Fade"));
	ActionManager::register_action (editor_actions, X_("LatchMenu"), _("Latch"));
	ActionManager::register_action (editor_actions, X_("RegionMenu"), _("Region"));
	ActionManager::register_action (editor_actions, X_("RegionMenuLayering"), _("Layering"));
	ActionManager::register_action (editor_actions, X_("RegionMenuNudge"), _("Nudge"));
	ActionManager::register_action (editor_actions, X_("RegionMenuTrim"), _("Trim"));
	ActionManager::register_action (editor_actions, X_("RegionMenuGain"), _("Gain"));
	ActionManager::register_action (editor_actions, X_("RegionMenuRanges"), _("Ranges"));
	ActionManager::register_action (editor_actions, X_("RegionMenuFades"), _("Fades"));
	ActionManager::register_action (editor_actions, X_("RegionMenuMIDI"), _("MIDI"));
	ActionManager::register_action (editor_actions, X_("RegionMenuDuplicate"), _("Duplicate"));
	ActionManager::register_action (editor_actions, X_("Link"), _("Link"));
	ActionManager::register_action (editor_actions, X_("ZoomFocusMenu"), _("Zoom Focus"));
	ActionManager::register_action (editor_actions, X_("KeyMouseActions"), _("Key Mouse"));
	ActionManager::register_action (editor_actions, X_("LocateToMarker"), _("Locate to Markers"));
	ActionManager::register_action (editor_actions, X_("MarkerMenu"), _("Markers"));
	ActionManager::register_action (editor_actions, X_("MeterFalloff"), _("Meter falloff"));
	ActionManager::register_action (editor_actions, X_("MeterHold"), _("Meter hold"));
	ActionManager::register_action (editor_actions, X_("MiscOptions"), _("Misc Options"));
	ActionManager::register_action (editor_actions, X_("Monitoring"), _("Monitoring"));
	ActionManager::register_action (editor_actions, X_("MoveActiveMarkMenu"), _("Active Mark"));
	ActionManager::register_action (editor_actions, X_("MovePlayHeadMenu"), _("Playhead"));
	ActionManager::register_action (editor_actions, X_("PlayMenu"), _("Play"));
	ActionManager::register_action (editor_actions, X_("PrimaryClockMenu"), _("Primary Clock"));
	ActionManager::register_action (editor_actions, X_("Pullup"), _("Pullup / Pulldown"));
	ActionManager::register_action (editor_actions, X_("RegionEditOps"), _("Region operations"));
	ActionManager::register_action (editor_actions, X_("RegionGainMenu"), _("Gain"));
	ActionManager::register_action (editor_actions, X_("RulerMenu"), _("Rulers"));
	ActionManager::register_action (editor_actions, X_("SavedViewMenu"), _("Views"));
	ActionManager::register_action (editor_actions, X_("ScrollMenu"), _("Scroll"));
	ActionManager::register_action (editor_actions, X_("SecondaryClockMenu"), _("Secondary Clock"));
	ActionManager::register_action (editor_actions, X_("Select"), _("Select"));
	ActionManager::register_action (editor_actions, X_("SelectMenu"), _("Select"));
	ActionManager::register_action (editor_actions, X_("SeparateMenu"), _("Separate"));
	ActionManager::register_action (editor_actions, X_("SetLoopMenu"), _("Loop"));
	ActionManager::register_action (editor_actions, X_("SetPunchMenu"), _("Punch"));
	ActionManager::register_action (editor_actions, X_("Solo"), _("Solo"));
	ActionManager::register_action (editor_actions, X_("Subframes"), _("Subframes"));
	ActionManager::register_action (editor_actions, X_("SyncMenu"), _("Sync"));
	ActionManager::register_action (editor_actions, X_("TempoMenu"), _("Tempo"));
	ActionManager::register_action (editor_actions, X_("Timecode"), _("Timecode fps"));
	ActionManager::register_action (editor_actions, X_("TrackHeightMenu"), _("Height"));
	ActionManager::register_action (editor_actions, X_("TrackMenu"), _("Track"));
	ActionManager::register_action (editor_actions, X_("Tools"), _("Tools"));
	ActionManager::register_action (editor_actions, X_("View"), _("View"));
	ActionManager::register_action (editor_actions, X_("ZoomFocus"), _("Zoom Focus"));
	ActionManager::register_action (editor_actions, X_("ZoomMenu"), _("Zoom"));

	register_region_actions ();

	/* add named actions for the editor */

	ActionManager::register_action (editor_actions, "escape", _("Break drag or deselect all"), sigc::mem_fun (*this, &Editor::escape));

	act = ActionManager::register_toggle_action (editor_actions, "show-editor-mixer", _("Show Editor Mixer"), sigc::mem_fun (*this, &Editor::editor_mixer_button_toggled));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_toggle_action (editor_actions, "show-editor-list", _("Show Editor List"), sigc::mem_fun (*this, &Editor::editor_list_button_toggled));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "playhead-to-next-region-boundary", _("Playhead to Next Region Boundary"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_next_region_boundary), true ));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "playhead-to-next-region-boundary-noselection", _("Playhead to Next Region Boundary (No Track Selection)"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_next_region_boundary), false ));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "playhead-to-previous-region-boundary", _("Playhead to Previous Region Boundary"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_previous_region_boundary), true));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "playhead-to-previous-region-boundary-noselection", _("Playhead to Previous Region Boundary (No Track Selection)"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_previous_region_boundary), false));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "playhead-to-next-region-start", _("Playhead to Next Region Start"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_next_region_point), playhead_cursor, RegionPoint (Start)));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "playhead-to-next-region-end", _("Playhead to Next Region End"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_next_region_point), playhead_cursor, RegionPoint (End)));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "playhead-to-next-region-sync", _("Playhead to Next Region Sync"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_next_region_point), playhead_cursor, RegionPoint (SyncPoint)));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "playhead-to-previous-region-start", _("Playhead to Previous Region Start"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_previous_region_point), playhead_cursor, RegionPoint (Start)));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "playhead-to-previous-region-end", _("Playhead to Previous Region End"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_previous_region_point), playhead_cursor, RegionPoint (End)));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "playhead-to-previous-region-sync", _("Playhead to Previous Region Sync"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_previous_region_point), playhead_cursor, RegionPoint (SyncPoint)));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "selected-marker-to-next-region-boundary", _("To Next Region Boundary"), sigc::bind (sigc::mem_fun(*this, &Editor::selected_marker_to_next_region_boundary), true));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "selected-marker-to-next-region-boundary-noselection", _("To Next Region Boundary (No Track Selection)"), sigc::bind (sigc::mem_fun(*this, &Editor::selected_marker_to_next_region_boundary), false));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "selected-marker-to-previous-region-boundary", _("To Previous Region Boundary"), sigc::bind (sigc::mem_fun(*this, &Editor::selected_marker_to_previous_region_boundary), true));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "selected-marker-to-previous-region-boundary-noselection", _("to Previous Region Boundary (No Track Selection)"), sigc::bind (sigc::mem_fun(*this, &Editor::selected_marker_to_previous_region_boundary), false));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "edit-cursor-to-next-region-start", _("To Next Region Start"), sigc::bind (sigc::mem_fun(*this, &Editor::selected_marker_to_next_region_point), RegionPoint (Start)));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "edit-cursor-to-next-region-end", _("To Next Region End"), sigc::bind (sigc::mem_fun(*this, &Editor::selected_marker_to_next_region_point), RegionPoint (End)));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "edit-cursor-to-next-region-sync", _("To Next Region Sync"), sigc::bind (sigc::mem_fun(*this, &Editor::selected_marker_to_next_region_point), RegionPoint (SyncPoint)));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "edit-cursor-to-previous-region-start", _("To Previous Region Start"), sigc::bind (sigc::mem_fun(*this, &Editor::selected_marker_to_previous_region_point), RegionPoint (Start)));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "edit-cursor-to-previous-region-end", _("To Previous Region End"), sigc::bind (sigc::mem_fun(*this, &Editor::selected_marker_to_previous_region_point), RegionPoint (End)));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "edit-cursor-to-previous-region-sync", _("To Previous Region Sync"), sigc::bind (sigc::mem_fun(*this, &Editor::selected_marker_to_previous_region_point), RegionPoint (SyncPoint)));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "edit-cursor-to-range-start", _("To Range Start"), sigc::mem_fun(*this, &Editor::selected_marker_to_selection_start));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "edit-cursor-to-range-end", _("To Range End"), sigc::mem_fun(*this, &Editor::selected_marker_to_selection_end));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "playhead-to-range-start", _("Playhead to Range Start"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_selection_start), playhead_cursor));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "playhead-to-range-end", _("Playhead to Range End"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_to_selection_end), playhead_cursor));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "select-all", _("Select All"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all), Selection::Set));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "deselect-all", _("Deselect All"), sigc::mem_fun(*this, &Editor::deselect_all));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "invert-selection", _("Invert Selection"), sigc::mem_fun(*this, &Editor::invert_selection));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "select-all-after-edit-cursor", _("Select All After Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), true));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "select-all-before-edit-cursor", _("Select All Before Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), false));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "select-all-between-cursors", _("Select All Overlapping Edit Range"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), false));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "select-all-within-cursors", _("Select All Inside Edit Range"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), true));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "select-range-between-cursors", _("Select Edit Range"), sigc::mem_fun(*this, &Editor::select_range_between));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "select-all-in-punch-range", _("Select All in Punch Range"), sigc::mem_fun(*this, &Editor::select_all_selectables_using_punch));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "select-all-in-loop-range", _("Select All in Loop Range"), sigc::mem_fun(*this, &Editor::select_all_selectables_using_loop));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "select-next-route", _("Select Next Track or Bus"), sigc::mem_fun(*this, &Editor::select_next_route));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "select-prev-route", _("Select Previous Track or Bus"), sigc::mem_fun(*this, &Editor::select_prev_route));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "track-record-enable-toggle", _("Toggle Record Enable"), sigc::mem_fun(*this, &Editor::toggle_record_enable));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);

	for (int i = 1; i <= 12; ++i) {
		string const a = string_compose (X_("save-visual-state-%1"), i);
		string const n = string_compose (_("Save View %1"), i);
		act = ActionManager::register_action (editor_actions, a.c_str(), n.c_str(), sigc::bind (sigc::mem_fun (*this, &Editor::start_visual_state_op), i - 1));
		ActionManager::session_sensitive_actions.push_back (act);
	}

	for (int i = 1; i <= 12; ++i) {
		string const a = string_compose (X_("goto-visual-state-%1"), i);
		string const n = string_compose (_("Goto View %1"), i);
		act = ActionManager::register_action (editor_actions, a.c_str(), n.c_str(), sigc::bind (sigc::mem_fun (*this, &Editor::cancel_visual_state_op), i - 1));
		ActionManager::session_sensitive_actions.push_back (act);
	}
	
	for (int i = 1; i <= 9; ++i) {
		string const a = string_compose (X_("goto-mark-%1"), i);
		string const n = string_compose (_("Locate to Mark %1"), i);
		act = ActionManager::register_action (editor_actions, a.c_str(), n.c_str(), sigc::bind (sigc::mem_fun (*this, &Editor::goto_nth_marker), i - 1));
		ActionManager::session_sensitive_actions.push_back (act);
	}

	act = ActionManager::register_action (editor_actions, "jump-forward-to-mark", _("Jump Forward to Mark"), sigc::mem_fun(*this, &Editor::jump_forward_to_mark));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "jump-backward-to-mark", _("Jump Backward to Mark"), sigc::mem_fun(*this, &Editor::jump_backward_to_mark));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "add-location-from-playhead", _("Add Mark from Playhead"), sigc::mem_fun(*this, &Editor::add_location_from_playhead_cursor));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "nudge-next-forward", _("Nudge Next Forward"), sigc::bind (sigc::mem_fun(*this, &Editor::nudge_forward), true, false));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "nudge-next-backward", _("Nudge Next Backward"), sigc::bind (sigc::mem_fun(*this, &Editor::nudge_backward), true, false));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "nudge-playhead-forward", _("Nudge Playhead Forward"), sigc::bind (sigc::mem_fun(*this, &Editor::nudge_forward), false, true));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "nudge-playhead-backward", _("Nudge Playhead Backward"), sigc::bind (sigc::mem_fun(*this, &Editor::nudge_backward), false, true));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "playhead-forward-to-grid", _("Forward to Grid"), sigc::mem_fun(*this, &Editor::playhead_forward_to_grid));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "playhead-backward-to-grid", _("Backward to Grid"), sigc::mem_fun(*this, &Editor::playhead_backward_to_grid));
	ActionManager::session_sensitive_actions.push_back (act);


	act = ActionManager::register_action (editor_actions, "temporal-zoom-out", _("Zoom Out"), sigc::bind (sigc::mem_fun(*this, &Editor::temporal_zoom_step), true));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "temporal-zoom-in", _("Zoom In"), sigc::bind (sigc::mem_fun(*this, &Editor::temporal_zoom_step), false));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "zoom-to-session", _("Zoom to Session"), sigc::mem_fun(*this, &Editor::temporal_zoom_session));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "zoom-to-region", _("Zoom to Region"), sigc::bind (sigc::mem_fun(*this, &Editor::zoom_to_region), false));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "zoom-to-region-both-axes", _("Zoom to Region (Width and Height)"), sigc::bind (sigc::mem_fun(*this, &Editor::zoom_to_region), true));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "toggle-zoom", _("Toggle Zoom State"), sigc::mem_fun(*this, &Editor::swap_visual_state));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "move-selected-tracks-up", _("Move Selected Tracks Up"), sigc::bind (sigc::mem_fun(*_routes, &EditorRoutes::move_selected_tracks), true));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "move-selected-tracks-down", _("Move Selected Tracks Down"), sigc::bind (sigc::mem_fun(*_routes, &EditorRoutes::move_selected_tracks), false));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "scroll-tracks-up", _("Scroll Tracks Up"), sigc::mem_fun(*this, &Editor::scroll_tracks_up));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "scroll-tracks-down", _("Scroll Tracks Down"), sigc::mem_fun(*this, &Editor::scroll_tracks_down));
	ActionManager::track_selection_sensitive_actions.push_back (act);
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "step-tracks-up", _("Step Tracks Up"), sigc::mem_fun(*this, &Editor::scroll_tracks_up_line));
	ActionManager::track_selection_sensitive_actions.push_back (act);
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "step-tracks-down", _("Step Tracks Down"), sigc::mem_fun(*this, &Editor::scroll_tracks_down_line));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "scroll-backward", _("Scroll Backward"), sigc::bind (sigc::mem_fun(*this, &Editor::scroll_backward), 0.8f));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "scroll-forward", _("Scroll Forward"), sigc::bind (sigc::mem_fun(*this, &Editor::scroll_forward), 0.8f));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "goto", _("goto"), sigc::mem_fun(*this, &Editor::goto_frame));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "center-playhead", _("Center Playhead"), sigc::mem_fun(*this, &Editor::center_playhead));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "center-edit-cursor", _("Center Active Marker"), sigc::mem_fun(*this, &Editor::center_edit_point));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "scroll-playhead-forward", _("Playhead Forward"), sigc::bind (sigc::mem_fun(*this, &Editor::scroll_playhead), true));;
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "scroll-playhead-backward", _("Playhead Backward"), sigc::bind (sigc::mem_fun(*this, &Editor::scroll_playhead), false));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "playhead-to-edit", _("Playhead to Active Mark"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_align), true));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "edit-to-playhead", _("Active Mark to Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::cursor_align), false));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "set-loop-from-edit-range", _("Set Loop from Edit Range"), sigc::bind (sigc::mem_fun(*this, &Editor::set_loop_from_edit_range), false));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "set-punch-from-edit-range", _("Set Punch from Edit Range"), sigc::mem_fun(*this, &Editor::set_punch_from_edit_range));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "play-from-edit-point", _("Play From Edit Point"), sigc::mem_fun(*this, &Editor::play_from_edit_point));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "play-from-edit-point-and-return", _("Play from Edit Point and Return"), sigc::mem_fun(*this, &Editor::play_from_edit_point_and_return));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "play-edit-range", _("Play Edit Range"), sigc::mem_fun(*this, &Editor::play_edit_range));
	act = ActionManager::register_action (editor_actions, "brush-at-mouse", _("Brush at Mouse"), sigc::mem_fun(*this, &Editor::kbd_brush));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "set-playhead", _("Playhead to Mouse"), sigc::mem_fun(*this, &Editor::set_playhead_cursor));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "set-edit-point", _("Active Marker to Mouse"), sigc::mem_fun(*this, &Editor::set_edit_point));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "duplicate-range", _("Duplicate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_dialog), false));
	ActionManager::session_sensitive_actions.push_back (act);

	undo_action = act = ActionManager::register_action (editor_actions, "undo", _("Undo"), sigc::bind (sigc::mem_fun(*this, &Editor::undo), 1U));
	ActionManager::session_sensitive_actions.push_back (act);
	redo_action = act = ActionManager::register_action (editor_actions, "redo", _("Redo"), sigc::bind (sigc::mem_fun(*this, &Editor::redo), 1U));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "export-audio", _("Export Audio"), sigc::mem_fun(*this, &Editor::export_audio));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "export-range", _("Export Range"), sigc::mem_fun(*this, &Editor::export_range));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "editor-separate", _("Separate"), sigc::mem_fun(*this, &Editor::separate_region_from_selection));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::mouse_edit_point_requires_canvas_actions.push_back (act);
	
	act = ActionManager::register_action (editor_actions, "separate-from-punch", _("Separate Using Punch Range"), sigc::mem_fun(*this, &Editor::separate_region_from_punch));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::mouse_edit_point_requires_canvas_actions.push_back (act);
	
	act = ActionManager::register_action (editor_actions, "separate-from-loop", _("Separate Using Loop Range"), sigc::mem_fun(*this, &Editor::separate_region_from_loop));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::mouse_edit_point_requires_canvas_actions.push_back (act);
	
	act = ActionManager::register_action (editor_actions, "editor-crop", _("Crop"), sigc::mem_fun(*this, &Editor::crop_region_to_selection));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::mouse_edit_point_requires_canvas_actions.push_back (act);
	
	act = ActionManager::register_action (editor_actions, "editor-cut", _("Cut"), sigc::mem_fun(*this, &Editor::cut));
	ActionManager::session_sensitive_actions.push_back (act);
	
	/* Note: for now, editor-delete does the exact same thing as editor-cut */
	act = ActionManager::register_action (editor_actions, "editor-delete", _("Delete"), sigc::mem_fun(*this, &Editor::cut));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "editor-copy", _("Copy"), sigc::mem_fun(*this, &Editor::copy));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "editor-paste", _("Paste"), sigc::mem_fun(*this, &Editor::keyboard_paste));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "set-tempo-from-edit-range", _("Set Tempo from Edit Range=Bar"), sigc::mem_fun(*this, &Editor::use_range_as_bar));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_toggle_action (editor_actions, "toggle-log-window", _("Log"),
			sigc::mem_fun (ARDOUR_UI::instance(), &ARDOUR_UI::toggle_errors));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "tab-to-transient-forwards", _("Move Forward to Transient"), sigc::bind (sigc::mem_fun(*this, &Editor::tab_to_transient), true));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "tab-to-transient-backwards", _("Move Backwards to Transient"), sigc::bind (sigc::mem_fun(*this, &Editor::tab_to_transient), false));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "crop", _("Crop"), sigc::mem_fun(*this, &Editor::crop_region_to_selection));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "start-range", _("Start Range"), sigc::mem_fun(*this, &Editor::keyboard_selection_begin));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "finish-range", _("Finish Range"), sigc::bind (sigc::mem_fun(*this, &Editor::keyboard_selection_finish), false));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "finish-add-range", _("Finish Add Range"), sigc::bind (sigc::mem_fun(*this, &Editor::keyboard_selection_finish), true));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "extend-range-to-end-of-region", _("Extend Range to End of Region"), sigc::bind (sigc::mem_fun(*this, &Editor::extend_selection_to_end_of_region), false));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "extend-range-to-start-of-region", _("Extend Range to Start of Region"), sigc::bind (sigc::mem_fun(*this, &Editor::extend_selection_to_start_of_region), false));
	ActionManager::session_sensitive_actions.push_back (act);

	act = ActionManager::register_toggle_action (editor_actions, "toggle-follow-playhead", _("Follow Playhead"), (sigc::mem_fun(*this, &Editor::toggle_follow_playhead)));
	ActionManager::session_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "remove-last-capture", _("Remove Last Capture"), (sigc::mem_fun(*this, &Editor::remove_last_capture)));
	ActionManager::session_sensitive_actions.push_back (act);

	ActionManager::register_toggle_action (editor_actions, "toggle-stationary-playhead", _("Stationary Playhead"), (mem_fun(*this, &Editor::toggle_stationary_playhead)));

	act = ActionManager::register_action (editor_actions, "insert-time", _("Insert Time"), (sigc::mem_fun(*this, &Editor::do_insert_time)));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "toggle-track-active", _("Toggle Active"), (sigc::mem_fun(*this, &Editor::toggle_tracks_active)));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);
	if (Profile->get_sae()) {
		act = ActionManager::register_action (editor_actions, "remove-track", _("Delete"), (sigc::mem_fun(*this, &Editor::remove_tracks)));
	} else {
		act = ActionManager::register_action (editor_actions, "remove-track", _("Remove"), (sigc::mem_fun(*this, &Editor::remove_tracks)));
	}
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, "fit-tracks", _("Fit Selected Tracks"), sigc::mem_fun(*this, &Editor::fit_selected_tracks));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "track-height-largest", _("Largest"), sigc::bind (
				sigc::mem_fun(*this, &Editor::set_track_height), HeightLargest));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "track-height-larger", _("Larger"), sigc::bind (
				sigc::mem_fun(*this, &Editor::set_track_height), HeightLarger));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "track-height-large", _("Large"), sigc::bind (
				sigc::mem_fun(*this, &Editor::set_track_height), HeightLarge));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "track-height-normal", _("Normal"), sigc::bind (
				sigc::mem_fun(*this, &Editor::set_track_height), HeightNormal));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "track-height-small", _("Small"), sigc::bind (
				sigc::mem_fun(*this, &Editor::set_track_height), HeightSmall));
	ActionManager::track_selection_sensitive_actions.push_back (act);
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);
	act = ActionManager::register_action (editor_actions, "track-height-smaller", _("Smaller"), sigc::bind (
				sigc::mem_fun(*this, &Editor::set_track_height), HeightSmaller));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::track_selection_sensitive_actions.push_back (act);

	Glib::RefPtr<ActionGroup> zoom_actions = ActionGroup::create (X_("Zoom"));
	RadioAction::Group zoom_group;

	ActionManager::register_radio_action (zoom_actions, zoom_group, "zoom-focus-left", _("Zoom Focus Left"), sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_chosen), Editing::ZoomFocusLeft));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::register_radio_action (zoom_actions, zoom_group, "zoom-focus-right", _("Zoom Focus Right"), sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_chosen), Editing::ZoomFocusRight));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::register_radio_action (zoom_actions, zoom_group, "zoom-focus-center", _("Zoom Focus Center"), sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_chosen), Editing::ZoomFocusCenter));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::register_radio_action (zoom_actions, zoom_group, "zoom-focus-playhead", _("Zoom Focus Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_chosen), Editing::ZoomFocusPlayhead));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::register_radio_action (zoom_actions, zoom_group, "zoom-focus-mouse", _("Zoom Focus Mouse"), sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_chosen), Editing::ZoomFocusMouse));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::register_radio_action (zoom_actions, zoom_group, "zoom-focus-edit", _("Zoom Focus Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_chosen), Editing::ZoomFocusEdit));
	ActionManager::session_sensitive_actions.push_back (act);

	Glib::RefPtr<ActionGroup> mouse_mode_actions = ActionGroup::create (X_("MouseMode"));
	RadioAction::Group mouse_mode_group;

	act = ActionManager::register_radio_action (mouse_mode_actions, mouse_mode_group, "set-mouse-mode-object", _("Object Tool"), sigc::bind (sigc::mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseObject));
	act->connect_proxy (mouse_move_button);
	mouse_move_button.set_image (*(manage (new Image (::get_icon("tool_object")))));
	mouse_move_button.set_label ("");
	mouse_move_button.set_name ("MouseModeButton");
	mouse_move_button.get_image ()->show ();

	act = ActionManager::register_radio_action (mouse_mode_actions, mouse_mode_group, "set-mouse-mode-range", _("Range Tool"), sigc::bind (sigc::mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseRange));
	act->connect_proxy (mouse_select_button);
	mouse_select_button.set_image (*(manage (new Image (::get_icon("tool_range")))));
	mouse_select_button.set_label ("");
	mouse_select_button.set_name ("MouseModeButton");
	mouse_select_button.get_image ()->show ();

	act = ActionManager::register_toggle_action (mouse_mode_actions, "set-mouse-mode-object-range", _("Link Object / Range Tools"), sigc::mem_fun (*this, &Editor::mouse_mode_object_range_toggled));
	act->connect_proxy (join_object_range_button);
	join_object_range_button.set_image (*(manage (new Image (::get_icon ("tool_object_range")))));
	join_object_range_button.set_label ("");
	join_object_range_button.set_name ("MouseModeButton");
	join_object_range_button.get_image ()->show ();

	act = ActionManager::register_radio_action (mouse_mode_actions, mouse_mode_group, "set-mouse-mode-gain", _("Gain Tool"), sigc::bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseGain));
	act->connect_proxy (mouse_gain_button);
	mouse_gain_button.set_image (*(manage (new Image (::get_icon("tool_gain")))));
	mouse_gain_button.set_label ("");
	mouse_gain_button.set_name ("MouseModeButton");
	mouse_gain_button.get_image ()->show ();

	act = ActionManager::register_radio_action (mouse_mode_actions, mouse_mode_group, "set-mouse-mode-zoom", _("Zoom Tool"), sigc::bind (sigc::mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseZoom));
	act->connect_proxy (mouse_zoom_button);
	mouse_zoom_button.set_image (*(manage (new Image (::get_icon("tool_zoom")))));
	mouse_zoom_button.set_label ("");
	mouse_zoom_button.set_name ("MouseModeButton");
	mouse_zoom_button.get_image ()->show ();

	act = ActionManager::register_radio_action (mouse_mode_actions, mouse_mode_group, "set-mouse-mode-audition", _("Audition Tool"), sigc::bind (sigc::mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseAudition));
	act->connect_proxy (mouse_audition_button);
	mouse_audition_button.set_image (*(manage (new Image (::get_icon("tool_audition")))));
	mouse_audition_button.set_label ("");
	mouse_audition_button.set_name ("MouseModeButton");
	mouse_audition_button.get_image ()->show ();

	act = ActionManager::register_radio_action (mouse_mode_actions, mouse_mode_group, "set-mouse-mode-timefx", _("Time FX Tool"), sigc::bind (sigc::mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseTimeFX));
	act->connect_proxy (mouse_timefx_button);
	mouse_timefx_button.set_image (*(manage (new Image (::get_icon("tool_stretch")))));
	mouse_timefx_button.set_label ("");
	mouse_timefx_button.set_name ("MouseModeButton");
	mouse_timefx_button.get_image ()->show ();

	ActionManager::register_action (editor_actions, "step-mouse-mode", _("Step Mouse Mode"), sigc::bind (sigc::mem_fun(*this, &Editor::step_mouse_mode), true));

	act = ActionManager::register_toggle_action (mouse_mode_actions, "toggle-internal-edit", _("Edit MIDI"), sigc::mem_fun(*this, &Editor::toggle_internal_editing));
	act->connect_proxy (internal_edit_button);
	internal_edit_button.set_image (*(manage (new Image (::get_icon("tool_note")))));
	internal_edit_button.set_label ("");
	internal_edit_button.set_name ("MouseModeButton");
	internal_edit_button.get_image ()->show ();

	RadioAction::Group edit_point_group;
	ActionManager::register_radio_action (editor_actions, edit_point_group, X_("edit-at-playhead"), _("Playhead"), (sigc::bind (sigc::mem_fun(*this, &Editor::edit_point_chosen), Editing::EditAtPlayhead)));
	ActionManager::register_radio_action (editor_actions, edit_point_group, X_("edit-at-mouse"), _("Mouse"), (sigc::bind (sigc::mem_fun(*this, &Editor::edit_point_chosen), Editing::EditAtPlayhead)));
	ActionManager::register_radio_action (editor_actions, edit_point_group, X_("edit-at-selected-marker"), _("Marker"), (sigc::bind (sigc::mem_fun(*this, &Editor::edit_point_chosen), Editing::EditAtPlayhead)));

	ActionManager::register_action (editor_actions, "cycle-edit-point", _("Change Edit Point"), sigc::bind (sigc::mem_fun (*this, &Editor::cycle_edit_point), false));
	ActionManager::register_action (editor_actions, "cycle-edit-point-with-marker", _("Change Edit Point Including Marker"), sigc::bind (sigc::mem_fun (*this, &Editor::cycle_edit_point), true));
	if (!Profile->get_sae()) {
		ActionManager::register_action (editor_actions, "set-edit-splice", _("Splice"), sigc::bind (sigc::mem_fun (*this, &Editor::set_edit_mode), Splice));
	}
	ActionManager::register_action (editor_actions, "set-edit-slide", _("Slide"), sigc::bind (sigc::mem_fun (*this, &Editor::set_edit_mode), Slide));
	ActionManager::register_action (editor_actions, "set-edit-lock", _("Lock"), sigc::bind (sigc::mem_fun (*this, &Editor::set_edit_mode), Lock));
	ActionManager::register_action (editor_actions, "toggle-edit-mode", _("Toggle Edit Mode"), sigc::mem_fun (*this, &Editor::cycle_edit_mode));

	ActionManager::register_action (editor_actions, X_("SnapTo"), _("Snap to"));
	ActionManager::register_action (editor_actions, X_("SnapMode"), _("Snap Mode"));

	RadioAction::Group snap_mode_group;
	ActionManager::register_radio_action (editor_actions, snap_mode_group, X_("snap-off"), _("No Grid"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_mode_chosen), Editing::SnapOff)));
	ActionManager::register_radio_action (editor_actions, snap_mode_group, X_("snap-normal"), _("Grid"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_mode_chosen), Editing::SnapNormal)));
	ActionManager::register_radio_action (editor_actions, snap_mode_group, X_("snap-magnetic"), _("Magnetic"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_mode_chosen), Editing::SnapMagnetic)));

	ActionManager::register_action (editor_actions, X_("cycle-snap-mode"), _("Next Snap Mode"), sigc::mem_fun (*this, &Editor::cycle_snap_mode));
	ActionManager::register_action (editor_actions, X_("cycle-snap-choice"), _("Next Snap Choice"), sigc::mem_fun (*this, &Editor::cycle_snap_choice));

	Glib::RefPtr<ActionGroup> snap_actions = ActionGroup::create (X_("Snap"));
	RadioAction::Group snap_choice_group;

	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-cd-frame"), _("Snap to CD Frame"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToCDFrame)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-timecode-frame"), _("Snap to Timecode Frame"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToTimecodeFrame)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-timecode-seconds"), _("Snap to Timecode Seconds"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToTimecodeSeconds)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-timecode-minutes"), _("Snap to Timecode Minutes"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToTimecodeMinutes)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-seconds"), _("Snap to Seconds"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToSeconds)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-minutes"), _("Snap to Minutes"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToMinutes)));

	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-thirtyseconds"), _("Snap to Thirty Seconds"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv32)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-twentyeighths"), _("Snap to Twenty Eighths"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv28)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-twentyfourths"), _("Snap to Twenty Fourths"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv24)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-twentieths"), _("Snap to Twentieths"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv20)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-asixteenthbeat"), _("Snap to Sixteenths"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv16)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-fourteenths"), _("Snap to Fourteenths"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv14)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-twelfths"), _("Snap to Tweflths"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv12)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-tenths"), _("Snap to Tenths"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv10)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-eighths"), _("Snap to Eighths"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv8)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-sevenths"), _("Snap to Sevenths"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv7)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-sixths"), _("Snap to Sixths"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv6)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-fifths"), _("Snap to Fifths"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv5)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-quarters"), _("Snap to Quarters"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv4)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-thirds"), _("Snap to Thirds"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv3)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-halves"), _("Snap to Halves"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeatDiv2)));

	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-beat"), _("Snap to Beat"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBeat)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-bar"), _("Snap to Bar"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToBar)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-mark"), _("Snap to Mark"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToMark)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-region-start"), _("Snap to Region Start"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToRegionStart)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-region-end"), _("Snap to Region End"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToRegionEnd)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-region-sync"), _("Snap to Region Sync"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToRegionSync)));
	ActionManager::register_radio_action (snap_actions, snap_choice_group, X_("snap-to-region-boundary"), _("Snap to Region Boundary"), (sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_chosen), Editing::SnapToRegionBoundary)));

	ActionManager::register_toggle_action (editor_actions, X_("show-marker-lines"), _("Show Marker Lines"), sigc::mem_fun (*this, &Editor::toggle_marker_lines));

	/* RULERS */

	Glib::RefPtr<ActionGroup> ruler_actions = ActionGroup::create (X_("Rulers"));
	ruler_tempo_action = Glib::RefPtr<ToggleAction>::cast_static (ActionManager::register_toggle_action (ruler_actions, X_("toggle-tempo-ruler"), _("Tempo"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_ruler_visibility), ruler_time_tempo)));
	ruler_meter_action = Glib::RefPtr<ToggleAction>::cast_static (ActionManager::register_toggle_action (ruler_actions, X_("toggle-meter-ruler"), _("Meter"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_ruler_visibility), ruler_time_meter)));
	ruler_range_action = Glib::RefPtr<ToggleAction>::cast_static (ActionManager::register_toggle_action (ruler_actions, X_("toggle-range-ruler"), _("Ranges"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_ruler_visibility), ruler_time_range_marker)));
	ruler_marker_action = Glib::RefPtr<ToggleAction>::cast_static (ActionManager::register_toggle_action (ruler_actions, X_("toggle-marker-ruler"), _("Markers"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_ruler_visibility), ruler_time_marker)));
	ruler_cd_marker_action = Glib::RefPtr<ToggleAction>::cast_static (ActionManager::register_toggle_action (ruler_actions, X_("toggle-cd-marker-ruler"), _("CD Markers"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_ruler_visibility), ruler_time_cd_marker)));
	ruler_loop_punch_action = Glib::RefPtr<ToggleAction>::cast_static (ActionManager::register_toggle_action (ruler_actions, X_("toggle-loop-punch-ruler"), _("Loop/Punch"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_ruler_visibility), ruler_time_transport_marker)));
	ruler_bbt_action = Glib::RefPtr<ToggleAction>::cast_static (ActionManager::register_toggle_action (ruler_actions, X_("toggle-bbt-ruler"), _("Bars & Beats"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_ruler_visibility), ruler_metric_bbt)));
	ruler_samples_action = Glib::RefPtr<ToggleAction>::cast_static (ActionManager::register_toggle_action (ruler_actions, X_("toggle-samples-ruler"), _("Samples"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_ruler_visibility), ruler_metric_samples)));
	ruler_timecode_action = Glib::RefPtr<ToggleAction>::cast_static (ActionManager::register_toggle_action (ruler_actions, X_("toggle-timecode-ruler"), _("Timecode"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_ruler_visibility), ruler_metric_timecode)));
	ruler_minsec_action = Glib::RefPtr<ToggleAction>::cast_static (ActionManager::register_toggle_action (ruler_actions, X_("toggle-minsec-ruler"), _("Min:Sec"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_ruler_visibility), ruler_metric_minsec)));

	/* set defaults here */

	no_ruler_shown_update = true;
	ruler_meter_action->set_active (true);
	ruler_tempo_action->set_active (true);
	ruler_marker_action->set_active (true);
	ruler_range_action->set_active (false);
	ruler_loop_punch_action->set_active (true);
	ruler_loop_punch_action->set_active (true);
	if (Profile->get_sae()) {
		ruler_bbt_action->set_active (true);
		ruler_cd_marker_action->set_active (false);
		ruler_timecode_action->set_active (false);
		ruler_minsec_action->set_active (true);
	} else {
		ruler_bbt_action->set_active (false);
		ruler_cd_marker_action->set_active (true);
		ruler_timecode_action->set_active (true);
		ruler_minsec_action->set_active (false);
	}
	ruler_samples_action->set_active (false);
	no_ruler_shown_update = false;

	/* REGION LIST */

	Glib::RefPtr<ActionGroup> rl_actions = ActionGroup::create (X_("RegionList"));
	RadioAction::Group sort_type_group;
	RadioAction::Group sort_order_group;

	/* the region list popup menu */
	ActionManager::register_action (rl_actions, X_("RegionListSort"), _("Sort"));

	act = ActionManager::register_action (rl_actions, X_("rlAudition"), _("Audition"), sigc::mem_fun(*this, &Editor::audition_region_from_region_list));
	ActionManager::region_list_selection_sensitive_actions.push_back (act);
	
	act = ActionManager::register_action (rl_actions, X_("rlHide"), _("Hide"), sigc::mem_fun(*this, &Editor::hide_region_from_region_list));
	ActionManager::region_list_selection_sensitive_actions.push_back (act);
	
	act = ActionManager::register_action (rl_actions, X_("rlShow"), _("Show"), sigc::mem_fun(*this, &Editor::show_region_in_region_list));
	ActionManager::region_list_selection_sensitive_actions.push_back (act);
	
	ActionManager::register_toggle_action (rl_actions, X_("rlShowAll"), _("Show All"), sigc::mem_fun(*_regions, &EditorRegions::toggle_full));
	ActionManager::register_toggle_action (rl_actions, X_("rlShowAuto"), _("Show Automatic Regions"), sigc::mem_fun (*_regions, &EditorRegions::toggle_show_auto_regions));
	
	ActionManager::register_radio_action (rl_actions, sort_order_group, X_("SortAscending"),  _("Ascending"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_direction), true));
	ActionManager::register_radio_action (rl_actions, sort_order_group, X_("SortDescending"),   _("Descending"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_direction), false));

	ActionManager::register_radio_action (rl_actions, sort_type_group, X_("SortByRegionName"),  _("By Region Name"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_type), ByName, false));
	ActionManager::register_radio_action (rl_actions, sort_type_group, X_("SortByRegionLength"),  _("By Region Length"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_type), ByLength, false));
	ActionManager::register_radio_action (rl_actions, sort_type_group, X_("SortByRegionPosition"),  _("By Region Position"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_type), ByPosition, false));
	ActionManager::register_radio_action (rl_actions, sort_type_group, X_("SortByRegionTimestamp"),  _("By Region Timestamp"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_type), ByTimestamp, false));
	ActionManager::register_radio_action (rl_actions, sort_type_group, X_("SortByRegionStartinFile"),  _("By Region Start in File"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_type), ByStartInFile, false));
	ActionManager::register_radio_action (rl_actions, sort_type_group, X_("SortByRegionEndinFile"),  _("By Region End in File"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_type), ByEndInFile, false));
	ActionManager::register_radio_action (rl_actions, sort_type_group, X_("SortBySourceFileName"),  _("By Source File Name"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_type), BySourceFileName, false));
	ActionManager::register_radio_action (rl_actions, sort_type_group, X_("SortBySourceFileLength"),  _("By Source File Length"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_type), BySourceFileLength, false));
	ActionManager::register_radio_action (rl_actions, sort_type_group, X_("SortBySourceFileCreationDate"),  _("By Source File Creation Date"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_type), BySourceFileCreationDate, false));
	ActionManager::register_radio_action (rl_actions, sort_type_group, X_("SortBySourceFilesystem"),  _("By Source Filesystem"),
			sigc::bind (sigc::mem_fun (*_regions, &EditorRegions::reset_sort_type), BySourceFileFS, false));

	ActionManager::register_action (rl_actions, X_("removeUnusedRegions"), _("Delete Unused"), sigc::mem_fun(*_regions, &EditorRegions::delete_unused_regions));

	/* the next two are duplicate items with different names for use in two different contexts */

	act = ActionManager::register_action (editor_actions, X_("addExistingAudioFiles"), _("Import"), sigc::mem_fun (*this, &Editor::external_audio_dialog));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::write_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, X_("addExternalAudioToRegionList"), _("Import to Region List..."), sigc::bind (sigc::mem_fun(*this, &Editor::add_external_audio_action), ImportAsRegion));
	ActionManager::session_sensitive_actions.push_back (act);
	ActionManager::write_sensitive_actions.push_back (act);

	act = ActionManager::register_action (editor_actions, X_("importFromSession"), _("Import From Session"), sigc::mem_fun(*this, &Editor::session_import_dialog));
	ActionManager::write_sensitive_actions.push_back (act);

	ActionManager::register_toggle_action (editor_actions, X_("ToggleSummary"), _("Show Summary"), sigc::mem_fun (*this, &Editor::set_summary));

	ActionManager::register_toggle_action (editor_actions, X_("ToggleGroupTabs"), _("Show Group Tabs"), sigc::mem_fun (*this, &Editor::set_group_tabs));

	ActionManager::register_toggle_action (editor_actions, X_("ToggleMeasureVisibility"), _("Show Measures"), sigc::mem_fun (*this, &Editor::toggle_measure_visibility));

	/* if there is a logo in the editor canvas, its always visible at startup */

	act = ActionManager::register_toggle_action (editor_actions, X_("ToggleLogoVisibility"), _("Show Logo"), sigc::mem_fun (*this, &Editor::toggle_logo_visibility));
	Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
	tact->set_active (true);

	/* MIDI */

	Glib::RefPtr<ActionGroup> midi_actions = ActionGroup::create (X_("MIDI"));
	ActionManager::register_action (midi_actions, X_("panic"), _("Panic"), sigc::mem_fun(*this, &Editor::midi_panic));

	ActionManager::add_action_group (rl_actions);
	ActionManager::add_action_group (ruler_actions);
	ActionManager::add_action_group (zoom_actions);
	ActionManager::add_action_group (mouse_mode_actions);
	ActionManager::add_action_group (snap_actions);
	ActionManager::add_action_group (editor_actions);
	ActionManager::add_action_group (midi_actions);
}

void
Editor::toggle_ruler_visibility (RulerType rt)
{
	const char* action = 0;

	if (no_ruler_shown_update) {
		return;
	}

	switch (rt) {
	case ruler_metric_timecode:
		action = "toggle-timecode-ruler";
		break;
	case ruler_metric_bbt:
		action = "toggle-bbt-ruler";
		break;
	case ruler_metric_samples:
		action = "toggle-samples-ruler";
		break;
	case ruler_metric_minsec:
		action = "toggle-minsec-ruler";
		break;
	case ruler_time_tempo:
		action = "toggle-tempo-ruler";
		break;
	case ruler_time_meter:
		action = "toggle-meter-ruler";
		break;
	case ruler_time_marker:
		action = "toggle-marker-ruler";
		break;
	case ruler_time_range_marker:
		action = "toggle-range-ruler";
		break;
	case ruler_time_transport_marker:
		action = "toggle-loop-punch-ruler";
		break;
	case ruler_time_cd_marker:
		action = "toggle-cd-marker-ruler";
		break;
	}

	Glib::RefPtr<Action> act = ActionManager::get_action (X_("Rulers"), action);
	
	if (act) {
		Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
		update_ruler_visibility ();
		store_ruler_visibility ();
	}
}

void
Editor::set_summary ()
{
	Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleSummary"));
	if (act) {
		Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
		_session->config.set_show_summary (tact->get_active ());
	}
}

void
Editor::set_group_tabs ()
{
	Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleGroupTabs"));
	if (act) {
		Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
		_session->config.set_show_group_tabs (tact->get_active ());
	}
}

void
Editor::toggle_measure_visibility ()
{
	Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleMeasureVisibility"));
	if (act) {
		Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
		set_show_measures (tact->get_active());
	}
}

void
Editor::toggle_logo_visibility ()
{
	Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleLogoVisibility"));

	if (act) {
		Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
		if (logo_item) {
			if (tact->get_active()) {
				logo_item->show ();
			} else {
				logo_item->hide ();
			}
		}
	}
}

RefPtr<RadioAction>
Editor::snap_type_action (SnapType type)
{
	const char* action = 0;
	RefPtr<Action> act;

	switch (type) {
	case Editing::SnapToCDFrame:
		action = "snap-to-cd-frame";
		break;
	case Editing::SnapToTimecodeFrame:
		action = "snap-to-timecode-frame";
		break;
	case Editing::SnapToTimecodeSeconds:
		action = "snap-to-timecode-seconds";
		break;
	case Editing::SnapToTimecodeMinutes:
		action = "snap-to-timecode-minutes";
		break;
	case Editing::SnapToSeconds:
		action = "snap-to-seconds";
		break;
	case Editing::SnapToMinutes:
		action = "snap-to-minutes";
		break;
	case Editing::SnapToBeatDiv32:
		action = "snap-to-thirtyseconds";
		break;
	case Editing::SnapToBeatDiv28:
		action = "snap-to-twentyeighths";
		break;
	case Editing::SnapToBeatDiv24:
		action = "snap-to-twentyfourths";
		break;
	case Editing::SnapToBeatDiv20:
		action = "snap-to-twentieths";
		break;
	case Editing::SnapToBeatDiv16:
		action = "snap-to-asixteenthbeat";
		break;
	case Editing::SnapToBeatDiv14:
		action = "snap-to-fourteenths";
		break;
	case Editing::SnapToBeatDiv12:
		action = "snap-to-twelfths";
		break;
	case Editing::SnapToBeatDiv10:
		action = "snap-to-tenths";
		break;
	case Editing::SnapToBeatDiv8:
		action = "snap-to-eighths";
		break;
	case Editing::SnapToBeatDiv7:
		action = "snap-to-sevenths";
		break;
	case Editing::SnapToBeatDiv6:
		action = "snap-to-sixths";
		break;
	case Editing::SnapToBeatDiv5:
		action = "snap-to-fifths";
		break;
	case Editing::SnapToBeatDiv4:
		action = "snap-to-quarters";
		break;
	case Editing::SnapToBeatDiv3:
		action = "snap-to-thirds";
		break;
	case Editing::SnapToBeatDiv2:
		action = "snap-to-halves";
		break;
	case Editing::SnapToBeat:
		action = "snap-to-beat";
		break;
	case Editing::SnapToBar:
		action = "snap-to-bar";
		break;
	case Editing::SnapToMark:
		action = "snap-to-mark";
		break;
	case Editing::SnapToRegionStart:
		action = "snap-to-region-start";
		break;
	case Editing::SnapToRegionEnd:
		action = "snap-to-region-end";
		break;
	case Editing::SnapToRegionSync:
		action = "snap-to-region-sync";
		break;
	case Editing::SnapToRegionBoundary:
		action = "snap-to-region-boundary";
		break;
	default:
		fatal << string_compose (_("programming error: %1: %2"), "Editor: impossible snap-to type", (int) type) << endmsg;
		/*NOTREACHED*/
	}

	act = ActionManager::get_action (X_("Snap"), action);

	if (act) {
		RefPtr<RadioAction> ract = RefPtr<RadioAction>::cast_dynamic(act);
		return ract;

	} else  {
		error << string_compose (_("programming error: %1"), "Editor::snap_type_chosen could not find action to match type.") << endmsg;
		return RefPtr<RadioAction>();
	}
}

void
Editor::cycle_snap_choice()
{
	switch (_snap_type) {
	case Editing::SnapToCDFrame:
		set_snap_to (Editing::SnapToTimecodeFrame);
		break;
	case Editing::SnapToTimecodeFrame:
		set_snap_to (Editing::SnapToTimecodeSeconds);
		break;
	case Editing::SnapToTimecodeSeconds:
		set_snap_to (Editing::SnapToTimecodeMinutes);
		break;
	case Editing::SnapToTimecodeMinutes:
		set_snap_to (Editing::SnapToSeconds);
		break;
	case Editing::SnapToSeconds:
		set_snap_to (Editing::SnapToMinutes);
		break;
	case Editing::SnapToMinutes:
		set_snap_to (Editing::SnapToBeatDiv32);
		break;
	case Editing::SnapToBeatDiv32:
		set_snap_to (Editing::SnapToBeatDiv28);
		break;
	case Editing::SnapToBeatDiv28:
		set_snap_to (Editing::SnapToBeatDiv24);
		break;
	case Editing::SnapToBeatDiv24:
		set_snap_to (Editing::SnapToBeatDiv20);
		break;
	case Editing::SnapToBeatDiv20:
		set_snap_to (Editing::SnapToBeatDiv16);
		break;
	case Editing::SnapToBeatDiv16:
		set_snap_to (Editing::SnapToBeatDiv14);
		break;
	case Editing::SnapToBeatDiv14:
		set_snap_to (Editing::SnapToBeatDiv12);
		break;
	case Editing::SnapToBeatDiv12:
		set_snap_to (Editing::SnapToBeatDiv10);
		break;
	case Editing::SnapToBeatDiv10:
		set_snap_to (Editing::SnapToBeatDiv8);
		break;
	case Editing::SnapToBeatDiv8:
		set_snap_to (Editing::SnapToBeatDiv7);
		break;
	case Editing::SnapToBeatDiv7:
		set_snap_to (Editing::SnapToBeatDiv6);
		break;
	case Editing::SnapToBeatDiv6:
		set_snap_to (Editing::SnapToBeatDiv5);
		break;
	case Editing::SnapToBeatDiv5:
		set_snap_to (Editing::SnapToBeatDiv4);
		break;
	case Editing::SnapToBeatDiv4:
		set_snap_to (Editing::SnapToBeatDiv3);
		break;
	case Editing::SnapToBeatDiv3:
		set_snap_to (Editing::SnapToBeatDiv2);
		break;
	case Editing::SnapToBeatDiv2:
		set_snap_to (Editing::SnapToBeat);
		break;
	case Editing::SnapToBeat:
		set_snap_to (Editing::SnapToBar);
		break;
	case Editing::SnapToBar:
		set_snap_to (Editing::SnapToMark);
		break;
	case Editing::SnapToMark:
		set_snap_to (Editing::SnapToRegionStart);
		break;
	case Editing::SnapToRegionStart:
		set_snap_to (Editing::SnapToRegionEnd);
		break;
	case Editing::SnapToRegionEnd:
		set_snap_to (Editing::SnapToRegionSync);
		break;
	case Editing::SnapToRegionSync:
		set_snap_to (Editing::SnapToRegionBoundary);
		break;
	case Editing::SnapToRegionBoundary:
		set_snap_to (Editing::SnapToCDFrame);
		break;
	}
}

void
Editor::snap_type_chosen (SnapType type)
{
	/* this is driven by a toggle on a radio group, and so is invoked twice,
	   once for the item that became inactive and once for the one that became
	   active.
	*/

	RefPtr<RadioAction> ract = snap_type_action (type);

	if (ract && ract->get_active()) {
		set_snap_to (type);
	}
}

RefPtr<RadioAction>
Editor::snap_mode_action (SnapMode mode)
{
	const char* action = 0;
	RefPtr<Action> act;

	switch (mode) {
	case Editing::SnapOff:
		action = X_("snap-off");
		break;
	case Editing::SnapNormal:
		action = X_("snap-normal");
		break;
	case Editing::SnapMagnetic:
		action = X_("snap-magnetic");
		break;
	default:
		fatal << string_compose (_("programming error: %1: %2"), "Editor: impossible snap mode type", (int) mode) << endmsg;
		/*NOTREACHED*/
	}

	act = ActionManager::get_action (X_("Editor"), action);

	if (act) {
		RefPtr<RadioAction> ract = RefPtr<RadioAction>::cast_dynamic(act);
		return ract;

	} else  {
		error << string_compose (_("programming error: %1: %2"), "Editor::snap_mode_chosen could not find action to match mode.", action) << endmsg;
		return RefPtr<RadioAction> ();
	}
}

void
Editor::cycle_snap_mode ()
{
	switch (_snap_mode) {
	case SnapOff:
		set_snap_mode (SnapNormal);
		break;
	case SnapNormal:
		set_snap_mode (SnapMagnetic);
		break;
	case SnapMagnetic:
		set_snap_mode (SnapOff);
		break;
	}
}

void
Editor::snap_mode_chosen (SnapMode mode)
{
	/* this is driven by a toggle on a radio group, and so is invoked twice,
	   once for the item that became inactive and once for the one that became
	   active.
	*/

	RefPtr<RadioAction> ract = snap_mode_action (mode);

	if (ract && ract->get_active()) {
		set_snap_mode (mode);
	}
}

RefPtr<RadioAction>
Editor::edit_point_action (EditPoint ep)
{
	const char* action = 0;
	RefPtr<Action> act;

	switch (ep) {
	case Editing::EditAtPlayhead:
		action = X_("edit-at-playhead");
		break;
	case Editing::EditAtSelectedMarker:
		action = X_("edit-at-selected-marker");
		break;
	case Editing::EditAtMouse:
		action = X_("edit-at-mouse");
		break;
	default:
		fatal << string_compose (_("programming error: %1: %2"), "Editor: impossible edit point type", (int) ep) << endmsg;
		/*NOTREACHED*/
	}

	act = ActionManager::get_action (X_("Editor"), action);

	if (act) {
		RefPtr<RadioAction> ract = RefPtr<RadioAction>::cast_dynamic(act);
		return ract;

	} else  {
		error << string_compose (_("programming error: %1: %2"), "Editor::edit_point_action could not find action to match edit point.", action) << endmsg;
		return RefPtr<RadioAction> ();
	}
}

void
Editor::edit_point_chosen (EditPoint ep)
{
	/* this is driven by a toggle on a radio group, and so is invoked twice,
	   once for the item that became inactive and once for the one that became
	   active.
	*/

	RefPtr<RadioAction> ract = edit_point_action (ep);

	if (ract && ract->get_active()) {
		set_edit_point_preference (ep);
	}
}


RefPtr<RadioAction>
Editor::zoom_focus_action (ZoomFocus focus)
{
	const char* action = 0;
	RefPtr<Action> act;

	switch (focus) {
	case ZoomFocusLeft:
		action = X_("zoom-focus-left");
		break;
	case ZoomFocusRight:
		action = X_("zoom-focus-right");
		break;
	case ZoomFocusCenter:
		action = X_("zoom-focus-center");
		break;
	case ZoomFocusPlayhead:
		action = X_("zoom-focus-playhead");
		break;
	case ZoomFocusMouse:
		action = X_("zoom-focus-mouse");
		break;
	case ZoomFocusEdit:
		action = X_("zoom-focus-edit");
		break;
	default:
		fatal << string_compose (_("programming error: %1: %2"), "Editor: impossible focus type", (int) focus) << endmsg;
		/*NOTREACHED*/
	}

	act = ActionManager::get_action (X_("Zoom"), action);

	if (act) {
		RefPtr<RadioAction> ract = RefPtr<RadioAction>::cast_dynamic(act);
		return ract;
	} else {
		error << string_compose (_("programming error: %1: %2"), "Editor::zoom_focus_action could not find action to match focus.", action) << endmsg;
	}

	return RefPtr<RadioAction> ();
}

void
Editor::zoom_focus_chosen (ZoomFocus focus)
{
	/* this is driven by a toggle on a radio group, and so is invoked twice,
	   once for the item that became inactive and once for the one that became
	   active.
	*/

	RefPtr<RadioAction> ract = zoom_focus_action (focus);

	if (ract && ract->get_active()) {
		set_zoom_focus (focus);
	}
}

/** A Configuration parameter has changed.
 * @param parameter_name Name of the changed parameter.
 */
void
Editor::parameter_changed (std::string p)
{
	ENSURE_GUI_THREAD (*this, &Editor::parameter_changed, p)

	if (p == "auto-loop") {
		update_loop_range_view (true);
	} else if (p == "punch-in") {
		update_punch_range_view (true);
	} else if (p == "punch-out") {
		update_punch_range_view (true);
	} else if (p == "timecode-format") {
		update_just_timecode ();
	} else if (p == "xfades-visible") {
		update_xfade_visibility ();
	} else if (p == "show-region-fades") {
		update_region_fade_visibility ();
	} else if (p == "edit-mode") {
		edit_mode_selector.set_active_text (edit_mode_to_string (Config->get_edit_mode()));
	} else if (p == "subframes-per-frame") {
		update_just_timecode ();
	} else if (p == "show-track-meters") {
		toggle_meter_updating();
	} else if (p == "show-summary") {

		bool const s = _session->config.get_show_summary ();
 		if (s) {
 			_summary_hbox.show ();
 		} else {
 			_summary_hbox.hide ();
 		}

		Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleSummary"));
		if (act) {
			Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
			if (tact->get_active () != s) {
				tact->set_active (s);
			}
		}
	} else if (p == "show-group-tabs") {

		bool const s = _session->config.get_show_group_tabs ();
		if (s) {
			_group_tabs->show ();
		} else {
			_group_tabs->hide ();
		}

                reset_controls_layout_width ();

		Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleGroupTabs"));
		if (act) {
			Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
			if (tact->get_active () != s) {
				tact->set_active (s);
			}
		}
	} else if (p == "timecode-offset" || p == "timecode-offset-negative") {
		update_just_timecode ();
	} else if (p == "show-zoom-tools") {
		_zoom_tearoff->set_visible (Config->get_show_zoom_tools(), true);
	}
}

void
Editor::reset_focus ()
{
	track_canvas->grab_focus();
}

void
Editor::reset_canvas_action_sensitivity (bool onoff)
{
	if (_edit_point != EditAtMouse) {
		onoff = true;
	}

	for (vector<Glib::RefPtr<Action> >::iterator x = ActionManager::mouse_edit_point_requires_canvas_actions.begin();
	     x != ActionManager::mouse_edit_point_requires_canvas_actions.end(); ++x) {
		(*x)->set_sensitive (onoff);
	}
}

void
Editor::toggle_internal_editing ()
{
	Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("MouseMode"), X_("toggle-internal-edit"));
	if (act) {
		Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
		set_internal_edit (tact->get_active());
	}
}

/* Convenience functions to slightly reduce verbosity below */

static RefPtr<Action>
reg_sens (RefPtr<ActionGroup> group, char const * name, char const * label, sigc::slot<void> slot)
{
	RefPtr<Action> act = ActionManager::register_action (group, name, label, slot);
	ActionManager::session_sensitive_actions.push_back (act);
	return act;
}

static void
toggle_reg_sens (RefPtr<ActionGroup> group, char const * name, char const * label, sigc::slot<void> slot)
{
	RefPtr<Action> act = ActionManager::register_toggle_action (group, name, label, slot);
	ActionManager::session_sensitive_actions.push_back (act);
}

void
Editor::register_region_actions ()
{
	_region_actions = ActionGroup::create (X_("Region"));
	
	/* PART 1: actions that operate on the selection, and for which the edit point type and location is irrelevant */

	/* Remove selected regions */
	reg_sens (_region_actions, "remove-region", _("Remove"), sigc::mem_fun (*this, &Editor::remove_selected_regions));
	
	/* Offer dialogue box to rename the first selected region */
	reg_sens (_region_actions, "rename-region", _("Rename..."), sigc::mem_fun (*this, &Editor::rename_region));
	
	/* Raise all selected regions by 1 layer */
	reg_sens (_region_actions, "raise-region", _("Raise"), sigc::mem_fun (*this, &Editor::raise_region));

	/* Raise all selected regions to the top */
	reg_sens (_region_actions, "raise-region-to-top", _("Raise to Top"), sigc::mem_fun (*this, &Editor::raise_region_to_top));
	
	/* Lower all selected regions by 1 layer */
	reg_sens (_region_actions, "lower-region", _("Lower"), sigc::mem_fun (*this, &Editor::lower_region));

	/* Lower all selected regions to the bottom */
	reg_sens (_region_actions, "lower-region-to-bottom", _("Lower to Bottom"), sigc::mem_fun (*this, &Editor::lower_region_to_bottom));
	
	/* Move selected regions to their original (`natural') position */
	reg_sens (_region_actions, "naturalize-region", _("Move to Original Position"), sigc::mem_fun (*this, &Editor::naturalize_region));
	
	/* Toggle `locked' status of selected regions */
	toggle_reg_sens (_region_actions, "toggle-region-lock", _("Lock"), sigc::mem_fun(*this, &Editor::toggle_region_lock));

	toggle_reg_sens (
		_region_actions,
		"toggle-region-lock-style",
		_("Glue to Bars and Beats"),
		sigc::mem_fun (*this, &Editor::toggle_region_lock_style)
		);
	
	/* Remove sync points from selected regions */
	reg_sens (_region_actions, "remove-region-sync", _("Remove Sync"), sigc::mem_fun(*this, &Editor::remove_region_sync));
	
	/* Mute or unmute selected regions */
	toggle_reg_sens (_region_actions, "toggle-region-mute", _("Mute"), sigc::mem_fun(*this, &Editor::toggle_region_mute));
	
	/* Open the normalize dialogue to operate on the selected regions */
	reg_sens (_region_actions, "normalize-region", _("Normalize..."), sigc::mem_fun(*this, &Editor::normalize_region));
	
	/* Reverse selected regions */
	reg_sens (_region_actions, "reverse-region", _("Reverse"), sigc::mem_fun (*this, &Editor::reverse_region));
	
	/* Split selected multi-channel regions into mono regions */
	reg_sens (_region_actions, "split-multichannel-region", _("Make Mono Regions"), sigc::mem_fun (*this, &Editor::split_multichannel_region));
	
	/* Boost selected region gain */
	reg_sens (_region_actions, "boost-region-gain", _("Boost Gain"), sigc::bind (sigc::mem_fun(*this, &Editor::adjust_region_gain), true));
	
	/* Cut selected region gain */
	reg_sens (_region_actions, "cut-region-gain", _("Cut Gain"), sigc::bind (sigc::mem_fun(*this, &Editor::adjust_region_gain), false));
	
	/* Open the pitch shift dialogue for the selected regions */
	reg_sens (_region_actions, "pitch-shift-region", _("Transpose"), sigc::mem_fun (*this, &Editor::pitch_shift_region));
	
	/* Toggle selected region opacity */
	toggle_reg_sens (_region_actions, "toggle-opaque-region", _("Opaque"), sigc::mem_fun (*this, &Editor::toggle_opaque_region));
	
	/* Toggle active status of selected regions' fade in */
	toggle_reg_sens (
		_region_actions, "toggle-region-fade-in", _("Fade In"), sigc::bind (sigc::mem_fun (*this, &Editor::toggle_region_fades), 1)
		);
	
	/* Toggle active status of selected regions' fade out */
	toggle_reg_sens (
		_region_actions, "toggle-region-fade-out", _("Fade Out"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_region_fades), -1)
		);
	
	/* Toggle active status of selected regions' fade in and out */
	toggle_reg_sens (
		_region_actions, "toggle-region-fades", _("Fades"), sigc::bind (sigc::mem_fun(*this, &Editor::toggle_region_fades), 0)
		);
	
	/* Open the dialogue to duplicate selected regions */
	reg_sens (_region_actions, "duplicate-region", _("Duplicate"), sigc::bind (sigc::mem_fun (*this, &Editor::duplicate_dialog), false));
	
	/* Open the dialogue to duplicate selected regions multiple times */
	reg_sens (
		_region_actions,
		"multi-duplicate-region",
		_("Multi-Duplicate..."),
		sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_dialog), true)
		);
	
	/* Fill tracks with selected regions */
	reg_sens (_region_actions, "region-fill-track", _("Fill Track"), sigc::mem_fun (*this, &Editor::region_fill_track));
	
	/* Set up the loop range from the selected regions */
	reg_sens (
		_region_actions, "set-loop-from-region", _("Set Loop Range"), sigc::bind (sigc::mem_fun (*this, &Editor::set_loop_from_region), false)
		);
	
	/* Set up the loop range from the selected regions, and start playback of it */
	reg_sens (_region_actions, "loop-region", _("Loop"), sigc::bind  (sigc::mem_fun(*this, &Editor::set_loop_from_region), true));
	
	/* Set the punch range from the selected regions */
	reg_sens (_region_actions, "set-punch-from-region", _("Set Punch"), sigc::mem_fun (*this, &Editor::set_punch_from_region));
	
	/* Add a single range marker around all selected regions */
	reg_sens (
		_region_actions, "add-range-marker-from-region", _("Add 1 Range Marker"), sigc::mem_fun (*this, &Editor::add_location_from_region)
		);
	
	/* Add a range marker around each selected region */
	reg_sens (
		_region_actions, "add-range-markers-from-region", _("Add Range Marker(s)"), sigc::mem_fun (*this, &Editor::add_locations_from_region)
		);

	/* Snap selected regions to the grid */
	reg_sens (_region_actions, "snap-regions-to-grid", _("Snap to Grid"), sigc::mem_fun (*this, &Editor::snap_regions_to_grid));

	/* Close gaps in selected regions */
	reg_sens (_region_actions, "close-region-gaps", _("Close Gaps"), sigc::mem_fun (*this, &Editor::close_region_gaps));

	/* Open the Rhythm Ferret dialogue for the selected regions */
	reg_sens (_region_actions, "show-rhythm-ferret", _("Rhythm Ferret..."), sigc::mem_fun (*this, &Editor::show_rhythm_ferret));

	/* Export the first selected region */
	reg_sens (_region_actions, "export-region", _("Export..."), sigc::mem_fun (*this, &Editor::export_region));

	/* Separate under selected regions: XXX not sure what this does */
	reg_sens (
		_region_actions,
		"separate-under-region",
		_("Separate Under"),
		sigc::mem_fun (*this, &Editor::separate_under_selected_regions)
		);

	reg_sens (_region_actions, "set-fade-in-length", _("Set Fade In Length"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_length), true));
	reg_sens (_region_actions, "set-fade-out-length", _("Set Fade Out Length"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_length), false));
	reg_sens (_region_actions, "set-tempo-from-region", _("Set Tempo from Region = Bar"), sigc::mem_fun (*this, &Editor::set_tempo_from_region));

	reg_sens (
		_region_actions,
		"split-region-at-transients",
		_("Split at Percussion Onsets"),
		sigc::mem_fun(*this, &Editor::split_region_at_transients)
		);

	/* Open the list editor dialogue for the selected regions */
	reg_sens (_region_actions, "show-region-list-editor", _("List Editor..."), sigc::mem_fun (*this, &Editor::show_midi_list_editor));

	/* Open the region properties dialogue for the selected regions */
	reg_sens (_region_actions, "show-region-properties", _("Properties..."), sigc::mem_fun (*this, &Editor::show_region_properties));

	reg_sens (_region_actions, "play-selected-regions", _("Play"), sigc::mem_fun(*this, &Editor::play_selected_region));

	reg_sens (_region_actions, "bounce-region", _("Bounce"), sigc::mem_fun (*this, &Editor::bounce_region_selection));

	reg_sens (_region_actions, "analyze-region", _("Spectral Analysis..."), sigc::mem_fun (*this, &Editor::analyze_region_selection));

	reg_sens (_region_actions, "reset-region-gain-envelopes", _("Reset Envelope"), sigc::mem_fun (*this, &Editor::reset_region_gain_envelopes));

	reg_sens (_region_actions, "reset-region-scale-amplitude", _("Reset Gain"), sigc::mem_fun (*this, &Editor::reset_region_scale_amplitude));

	toggle_reg_sens (
		_region_actions,
		"toggle-region-gain-envelope-visible",
		_("Envelope Visible"),
		sigc::mem_fun (*this, &Editor::toggle_gain_envelope_visibility)
		);

	toggle_reg_sens (
		_region_actions,
		"toggle-region-gain-envelope-active",
		_("Envelope Active"),
		sigc::mem_fun (*this, &Editor::toggle_gain_envelope_active)
		);

	reg_sens (_region_actions, "quantize-region", _("Quantize"), sigc::mem_fun (*this, &Editor::quantize_region));
	reg_sens (_region_actions, "insert-patch-change", _("Insert Patch Change..."), sigc::mem_fun (*this, &Editor::insert_patch_change));
	reg_sens (_region_actions, "fork-region", _("Fork"), sigc::mem_fun (*this, &Editor::fork_region));
	reg_sens (_region_actions, "strip-region-silence", _("Strip Silence..."), sigc::mem_fun (*this, &Editor::strip_region_silence));
	reg_sens (_region_actions, "set-selection-from-region", _("Set Range Selection"), sigc::mem_fun (*this, &Editor::set_selection_from_region));

	reg_sens (_region_actions, "nudge-forward", _("Nudge Forward"), sigc::bind (sigc::mem_fun (*this, &Editor::nudge_forward), false, false));
	reg_sens (_region_actions, "nudge-backward", _("Nudge Backward"), sigc::bind (sigc::mem_fun (*this, &Editor::nudge_backward), false, false));

	reg_sens (
		_region_actions,
		"nudge-forward-by-capture-offset",
		_("Nudge Forward by Capture Offset"),
		sigc::mem_fun (*this, &Editor::nudge_forward_capture_offset)
		);
	
	reg_sens (
		_region_actions,
		"nudge-backward-by-capture-offset",
		_("Nudge Backward by Capture Offset"),
		sigc::mem_fun (*this, &Editor::nudge_backward_capture_offset)
		);

	reg_sens (_region_actions, "trim-region-to-loop", _("Trim to Loop"), sigc::mem_fun (*this, &Editor::trim_region_to_loop));
	reg_sens (_region_actions, "trim-region-to-punch", _("Trim to Punch"), sigc::mem_fun (*this, &Editor::trim_region_to_punch));
	
	reg_sens (_region_actions, "trim-to-previous-region", _("Trim to Previous"), sigc::mem_fun(*this, &Editor::trim_region_to_previous_region_end));
	reg_sens (_region_actions, "trim-to-next-region", _("Trim to Next"), sigc::mem_fun(*this, &Editor::trim_region_to_next_region_start));

	/* PART 2: actions that are not related to the selection, but for which the edit point type and location is important */

	reg_sens (
		_region_actions,
		"insert-region-from-region-list",
		_("Insert Region From Region List"),
		sigc::bind (sigc::mem_fun (*this, &Editor::insert_region_list_selection), 1)
		);

	/* PART 3: actions that operate on the selection and also require the edit point location */

	reg_sens (_region_actions, "set-region-sync-position", _("Set Sync Position"), sigc::mem_fun (*this, &Editor::set_region_sync_position));
	reg_sens (_region_actions, "place-transient", _("Place Transient"), sigc::mem_fun (*this, &Editor::place_transient));
	reg_sens (_region_actions, "split-region", _("Split"), sigc::mem_fun (*this, &Editor::split_region));
	reg_sens (_region_actions, "trim-front", _("Trim Start at Edit Point"), sigc::mem_fun (*this, &Editor::trim_region_front));
	reg_sens (_region_actions, "trim-back", _("Trim End at Edit Point"), sigc::mem_fun (*this, &Editor::trim_region_back));

	reg_sens (
		_region_actions,
		"align-regions-start",
		_("Align Start"),
		sigc::bind (sigc::mem_fun(*this, &Editor::align_regions), ARDOUR::Start)
		);
	
	reg_sens (
		_region_actions,
		"align-regions-start-relative",
		_("Align Start Relative"),
		sigc::bind (sigc::mem_fun (*this, &Editor::align_regions_relative), ARDOUR::Start)
		);
	
	reg_sens (_region_actions, "align-regions-end", _("Align End"), sigc::bind (sigc::mem_fun (*this, &Editor::align_regions), ARDOUR::End));

	reg_sens (
		_region_actions,
		"align-regions-end-relative",
		_("Align End Relative"),
		sigc::bind (sigc::mem_fun(*this, &Editor::align_regions_relative), ARDOUR::End)
		);

	reg_sens (
		_region_actions,
		"align-regions-sync",
		_("Align Sync"),
		sigc::bind (sigc::mem_fun(*this, &Editor::align_regions), ARDOUR::SyncPoint)
		);
	
	reg_sens (
		_region_actions,
		"align-regions-sync-relative",
		_("Align Sync Relative"),
		sigc::bind (sigc::mem_fun (*this, &Editor::align_regions_relative), ARDOUR::SyncPoint)
		);

	Glib::RefPtr<Action> a = reg_sens (_region_actions, "choose-top-region", _("Choose Top..."), mem_fun (*this, &Editor::change_region_layering_order));
	a->set_accel_group (get_accel_group ());

	_all_region_actions_sensitized = true;

	ActionManager::add_action_group (_region_actions);
}