Heavy-duty abstraction work to split type-specific classes into

specializations of (new, for the most part) generic bases.  (eg. most everything
from the MIDI branch except for actual MIDI things, so merges have a chance of
succeeding).  Also the new edit toolbar, and various other cleanup things I did
along the way.

Should be functionally equivalent (except the toolbar), this is just design work.

She's a big'un....



git-svn-id: svn://localhost/ardour2/trunk@727 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 0 insertions, 732 deletions

diff --git a/gtk2_ardour/region_editor.cc b/gtk2_ardour/region_editor.cc
deleted file mode 100644
index 413ff01753..0000000000
--- a/gtk2_ardour/region_editor.cc
+++ /dev/null
@@ -1,732 +0,0 @@
-/*
-    Copyright (C) 2001 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.
-
-    $Id$
-*/
-
-#include <ardour/audioregion.h>
-#include <ardour/utils.h>
-#include <gtkmm2ext/utils.h>
-#include <gtkmm2ext/stop_signal.h>
-#include <cmath>
-
-#include "region_editor.h"
-#include "regionview.h"
-#include "ardour_ui.h"
-#include "utils.h"
-#include "gui_thread.h"
-
-#include "i18n.h"
-
-using namespace ARDOUR;
-using namespace PBD;
-using namespace sigc;
-using namespace std;
-
-AudioRegionEditor::AudioRegionEditor (Session&s, AudioRegion& r, AudioRegionView& rv)
-	: ArdourDialog ("audio region editor"),
-	  _session (s),
-	  _region (r),
-	  _region_view (rv),
-	  name_label (_("NAME:")),
-	  lock_button (_("lock")),
-	  mute_button (_("mute")),
-	  opaque_button (_("opaque")),
-	  envelope_active_button(_("active")),
-	  envelope_view_button(_("visible")),
-	  raise_arrow (Gtk::ARROW_UP, Gtk::SHADOW_OUT),
-	  lower_arrow (Gtk::ARROW_DOWN, Gtk::SHADOW_OUT),
-	  layer_label (_("Layer")),
-	  audition_button (_("play")),
-	  time_table (3, 2),
-	  start_clock ("AudioRegionEditorClock", true),
-	  end_clock ("AudioRegionEditorClock", true),
-	  length_clock ("AudioRegionEditorClock", true, true),
-	  sync_offset_clock ("AudioRegionEditorClock", true, true),
-	  envelope_loop_table (1, 3),
-	  envelope_label (_("ENVELOPE")),
-	  fade_in_table (4, 3),
-	  fade_in_length_adjustment (5.0, 0.0, 10000, 0.05, 1),
-	  fade_in_length_spinner (fade_in_length_adjustment, 10),
-	  fade_out_table (4, 3),
-	  fade_out_length_adjustment (5.0, 0.0, 10000, 0.05, 1),
-	  fade_out_length_spinner (fade_out_length_adjustment, 10)
-
-{
-	start_clock.set_session (&_session);
-	end_clock.set_session (&_session);
-	length_clock.set_session (&_session);
-
-	name_entry.set_name ("AudioRegionEditorEntry");
-	name_label.set_name ("AudioRegionEditorLabel");
-
-	name_hbox.set_spacing (5);
-	name_hbox.pack_start (name_label, false, false);
-	name_hbox.pack_start (name_entry, false, false);
-
-	raise_button.add (raise_arrow);
-	lower_button.add (lower_arrow);
-	layer_frame.set_name ("BaseFrame");
-	layer_frame.set_shadow_type (Gtk::SHADOW_IN);
-	layer_frame.add (layer_value_label);
-	layer_label.set_name ("AudioRegionEditorLabel");
-	layer_value_label.set_name ("AudioRegionEditorLabel");
-	Gtkmm2ext::set_size_request_to_display_given_text (layer_value_label, "99", 5, 2);
-
-	layer_hbox.set_spacing (5);
-	layer_hbox.pack_start (layer_label, false, false);
-	layer_hbox.pack_start (layer_frame, false, false);
-#if 0
-	layer_hbox.pack_start (raise_button, false, false);
-	layer_hbox.pack_start (lower_button, false, false);
-#endif
-
-	mute_button.set_name ("AudioRegionEditorToggleButton");
-	opaque_button.set_name ("AudioRegionEditorToggleButton");
-	lock_button.set_name ("AudioRegionEditorToggleButton");
-	envelope_active_button.set_name ("AudioRegionEditorToggleButton");
-	envelope_view_button.set_name ("AudioRegionEditorToggleButton");
-	fade_in_active_button.set_name ("AudioRegionEditorToggleButton");
-	fade_out_active_button.set_name ("AudioRegionEditorToggleButton");
-	audition_button.set_name ("AudioRegionEditorToggleButton");
-
-	ARDOUR_UI::instance()->tooltips().set_tip (mute_button, _("mute this region"));
-	ARDOUR_UI::instance()->tooltips().set_tip (opaque_button, _("regions underneath this one cannot be heard"));
-	ARDOUR_UI::instance()->tooltips().set_tip (lock_button, _("prevent any changes to this region"));
-	ARDOUR_UI::instance()->tooltips().set_tip (envelope_active_button, _("use the gain envelope during playback"));
-	ARDOUR_UI::instance()->tooltips().set_tip (envelope_view_button, _("show the gain envelope"));
-	ARDOUR_UI::instance()->tooltips().set_tip (fade_in_active_button, _("use fade in curve during playback"));
-	ARDOUR_UI::instance()->tooltips().set_tip (fade_out_active_button, _("use fade out curve during playback"));
-	ARDOUR_UI::instance()->tooltips().set_tip (audition_button, _("audition this region"));
-
-	mute_button.unset_flags (Gtk::CAN_FOCUS);
-	opaque_button.unset_flags (Gtk::CAN_FOCUS);
-	lock_button.unset_flags (Gtk::CAN_FOCUS);
-	envelope_active_button.unset_flags (Gtk::CAN_FOCUS);
-	envelope_view_button.unset_flags (Gtk::CAN_FOCUS);
-	fade_in_active_button.unset_flags (Gtk::CAN_FOCUS);
-	fade_out_active_button.unset_flags (Gtk::CAN_FOCUS);
-	audition_button.unset_flags (Gtk::CAN_FOCUS);
-	
-	mute_button.set_events (mute_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
-	opaque_button.set_events (opaque_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
-	lock_button.set_events (lock_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
-	envelope_active_button.set_events (envelope_active_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
-	envelope_view_button.set_events (envelope_view_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
-	fade_in_active_button.set_events (fade_in_active_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
-	fade_out_active_button.set_events (fade_out_active_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
-	audition_button.set_events (audition_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
-
-	top_row_button_hbox.set_border_width (5);
-	top_row_button_hbox.set_spacing (5);
-	top_row_button_hbox.set_homogeneous (false);
-	top_row_button_hbox.pack_start (mute_button, false, false);
-	top_row_button_hbox.pack_start (opaque_button, false, false);
-	top_row_button_hbox.pack_start (lock_button, false, false);
-	top_row_button_hbox.pack_start (layer_hbox, false, false, 5);
-	top_row_button_hbox.pack_end (audition_button, false, false);
-	
-	top_row_hbox.pack_start (name_hbox, true, true);
-	top_row_hbox.pack_end (top_row_button_hbox, true, true);
-
-	start_label.set_name ("AudioRegionEditorLabel");
-	start_label.set_text (_("START:"));
-	end_label.set_name ("AudioRegionEditorLabel");
-	end_label.set_text (_("END:"));
-	length_label.set_name ("AudioRegionEditorLabel");
-	length_label.set_text (_("LENGTH:"));
-	
-	time_table.set_col_spacings (2);
-	time_table.set_row_spacings (5);
-	time_table.set_border_width (5);
-
-	start_alignment.set (1.0, 0.5);
-	end_alignment.set (1.0, 0.5);
-	length_alignment.set (1.0, 0.5);
-
-	start_alignment.add (start_label);
-	end_alignment.add (end_label);
-	length_alignment.add (length_label);
-
-	time_table.attach (start_alignment, 0, 1, 0, 1, Gtk::FILL, Gtk::FILL);
-	time_table.attach (start_clock, 1, 2, 0, 1, Gtk::FILL, Gtk::FILL);
-
-	time_table.attach (end_alignment, 0, 1, 1, 2, Gtk::FILL, Gtk::FILL);
-	time_table.attach (end_clock, 1, 2, 1, 2, Gtk::FILL, Gtk::FILL);
-
-	time_table.attach (length_alignment, 0, 1, 2, 3, Gtk::FILL, Gtk::FILL);
-	time_table.attach (length_clock, 1, 2, 2, 3, Gtk::FILL, Gtk::FILL);
-
-	envelope_label.set_name ("AudioRegionEditorLabel");
-
-	envelope_loop_table.set_border_width (5);
-	envelope_loop_table.set_row_spacings (2);
-	envelope_loop_table.attach (envelope_label, 0, 1, 0, 1, Gtk::FILL, Gtk::FILL);
-	envelope_loop_table.attach (envelope_active_button, 0, 1, 1, 2, Gtk::FILL|Gtk::EXPAND, Gtk::FILL);
-	envelope_loop_table.attach (envelope_view_button, 0, 1, 2, 3, Gtk::FILL|Gtk::EXPAND, Gtk::FILL);
-
-	/* fade in */
-
-	fade_in_table.set_border_width (5);
-	fade_in_table.set_homogeneous (false);
-
-	fade_in_label.set_name ("AudioRegionEditorLabel");
-	fade_in_active_button_label.set_name ("AudioRegionEditorSmallLabel");
-	fade_in_length_label.set_name ("AudioRegionEditorSmallLabel");
-
-	fade_in_label.set_text (_("FADE IN"));
-	fade_in_active_button_label.set_text (_("active"));
-	fade_in_length_label.set_text (_("msecs"));
-
-	fade_in_active_button.add (fade_in_active_button_label);
-
-	fade_in_length_spinner.set_name("GenericSpinner");
-
-	fade_in_length_spinner.set_digits (3);
-
-	// fade_in_length_spinner.signal_activate().connect (mem_fun(*this, &AudioRegionEditor::activation));
-
-	Gtkmm2ext::set_size_request_to_display_given_text (fade_in_length_spinner, "500g", 20, -1);
-
-	fade_in_label_align.add (fade_in_label);
-	fade_in_label_align.set (0.5);
-
-
-	fade_in_table.attach (fade_in_label_align,   0, 2, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL);
-
-	fade_in_table.attach (fade_in_length_label,   0, 1, 1, 2, Gtk::EXPAND, Gtk::FILL);
-	fade_in_table.attach (fade_in_length_spinner, 0, 1, 2, 3, Gtk::FILL|Gtk::EXPAND, Gtk::FILL);
-
-	fade_in_table.attach (fade_in_active_button,        0, 2, 3, 5, Gtk::FILL|Gtk::EXPAND, Gtk::FILL);
-
-	/* fade out */
-
-	fade_out_table.set_border_width (5);
-	fade_out_table.set_homogeneous (false);
-
-	fade_out_label.set_name ("AudioRegionEditorLabel");
-	fade_out_active_button_label.set_name ("AudioRegionEditorSmallLabel");
-	fade_out_length_label.set_name ("AudioRegionEditorSmallLabel");
-
-	fade_out_label.set_text (_("FADE OUT"));
-	fade_out_active_button_label.set_text (_("active"));
-	fade_out_length_label.set_text (_("msecs"));
-
-	fade_out_active_button.add (fade_out_active_button_label);
-
-	fade_out_length_spinner.set_name("GenericSpinner");
-	
-	fade_out_length_spinner.set_digits (3);
-
-	fade_out_length_spinner.signal_activate().connect (mem_fun(*this, &AudioRegionEditor::activation));
-
-	Gtkmm2ext::set_size_request_to_display_given_text (fade_out_length_spinner, "500g", 20, -1);
-
-	fade_out_label_align.add (fade_out_label);
-	fade_out_label_align.set (0.5);
-
-	fade_out_table.attach (fade_out_label_align,   0, 2, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL);
-
-	fade_out_table.attach (fade_out_length_label,   0, 1, 1, 2, Gtk::EXPAND, Gtk::FILL);
-	fade_out_table.attach (fade_out_length_spinner, 0, 1, 2, 3, Gtk::FILL|Gtk::EXPAND, Gtk::FILL);
-
-	fade_out_table.attach (fade_out_active_button,        0, 2, 3, 5, Gtk::FILL|Gtk::EXPAND, Gtk::FILL);
-
-	lower_hbox.pack_start (time_table, true, true);
-	lower_hbox.pack_start (sep1, false, false);
-	lower_hbox.pack_start (envelope_loop_table, true, true);
-	lower_hbox.pack_start (sep2, false, false);
-	lower_hbox.pack_start (fade_in_table, true, true);
-	lower_hbox.pack_start (fade_out_table, true, true);
-
-	get_vbox()->pack_start (top_row_hbox, true, true);
-	get_vbox()->pack_start (sep3, false, false);
-	get_vbox()->pack_start (lower_hbox, true, true);
-
-	set_name ("AudioRegionEditorWindow");
-	add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
-
-	signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (this)));
-
-	string title = _("ardour: region ");
-	title += _region.name();
-	set_title (title);
-
-	show_all();
-
-	name_changed ();
-	bounds_changed (Change (StartChanged|LengthChanged|PositionChanged));
-	envelope_active_changed ();
-	mute_changed ();
-	opacity_changed ();
-	lock_changed ();
-	layer_changed ();
-	fade_in_changed ();
-	fade_out_changed ();
-
-	XMLNode *node  = _region.extra_xml ("GUI");
-	XMLProperty *prop = 0;
-	bool showing_envelope = false;
-
-	if (node && (prop = node->property ("envelope-visible")) != 0) {
-		if (prop->value() == "yes") {
-			showing_envelope = true;
-		} 
-	} 
-
-	if (showing_envelope) {
-		envelope_view_button.set_active (true);
-	} else {
-		envelope_view_button.set_active (false);
-	}
-
-	_region.StateChanged.connect (mem_fun(*this, &AudioRegionEditor::region_changed));
-	
-	spin_arrow_grab = false;
-	
-	connect_editor_events ();
-}
-
-AudioRegionEditor::~AudioRegionEditor ()
-{
-}
-
-void
-AudioRegionEditor::region_changed (Change what_changed)
-{
-	if (what_changed & NameChanged) {
-		name_changed ();
-	}
-	if (what_changed & BoundsChanged) {
-		bounds_changed (what_changed);
-	}
-
-	if (what_changed & Region::OpacityChanged) {
-		opacity_changed ();
-	}
-	if (what_changed & Region::MuteChanged) {
-		mute_changed ();
-	}
-	if (what_changed & Region::LockChanged) {
-		lock_changed ();
-	}
-	if (what_changed & Region::LayerChanged) {
-		layer_changed ();
-	}
-
-	if (what_changed & AudioRegion::EnvelopeActiveChanged) {
-		envelope_active_changed ();
-	}
-	if (what_changed & AudioRegion::FadeInChanged) {
-		fade_in_changed ();
-	}
-	if (what_changed & AudioRegion::FadeOutChanged) {
-		fade_out_changed ();
-	}
-	if (what_changed & AudioRegion::FadeInActiveChanged) {
-		fade_in_active_changed ();
-	}
-	if (what_changed & AudioRegion::FadeOutActiveChanged) {
-		fade_out_active_changed ();
-	}
-}
-
-void
-AudioRegionEditor::fade_in_realized ()
-{
-	fade_in_changed ();
-}
-
-void
-AudioRegionEditor::fade_out_realized ()
-{
-	fade_out_changed ();
-}
-
-gint 
-AudioRegionEditor::bpressed (GdkEventButton* ev, Gtk::SpinButton* but, void (AudioRegionEditor::*pmf)())
-{
-	switch (ev->button) {
-	case 1:
-	case 2:
-	case 3:
-		if (ev->type == GDK_BUTTON_PRESS) { /* no double clicks here */
-			if (!spin_arrow_grab) {
-				// GTK2FIX probably nuke the region editor
-				// if ((ev->window == but->gobj()->panel)) {
-				// spin_arrow_grab = true;
-				// (this->*pmf)();
-				// } 
-			} 
-		} 
-		break;
-	default:
-		break;
-	}
-	return FALSE;
-}
-
-gint 
-AudioRegionEditor::breleased (GdkEventButton* ev, Gtk::SpinButton* but, void (AudioRegionEditor::*pmf)())
-{
-	if (spin_arrow_grab) {
-		(this->*pmf)();
-		spin_arrow_grab = false;
-	}
-	return FALSE;
-}
-
-void
-AudioRegionEditor::start_editing_fade_in ()
-{
-	_region.freeze ();
-}
-
-void
-AudioRegionEditor::stop_editing_fade_in ()
-{
-	_region.thaw (_("fade in edit"));
-}
-
-void
-AudioRegionEditor::start_editing_fade_out ()
-{
-	_region.freeze ();
-}
-
-void
-AudioRegionEditor::stop_editing_fade_out ()
-{
-	_region.thaw (_("fade out edit"));
-}
-
-void
-AudioRegionEditor::connect_editor_events ()
-{
-  name_entry.signal_changed().connect (mem_fun(*this, &AudioRegionEditor::name_entry_changed));
-
-	start_clock.ValueChanged.connect (mem_fun(*this, &AudioRegionEditor::start_clock_changed));
-	end_clock.ValueChanged.connect (mem_fun(*this, &AudioRegionEditor::end_clock_changed));
-	length_clock.ValueChanged.connect (mem_fun(*this, &AudioRegionEditor::length_clock_changed));
-
-	fade_in_length_spinner.signal_button_press_event().connect (bind (mem_fun(*this, &AudioRegionEditor::bpressed), &fade_in_length_spinner, 
-								 &AudioRegionEditor::start_editing_fade_in));
-	fade_in_length_spinner.signal_button_release_event().connect (bind (mem_fun (*this, &AudioRegionEditor::breleased), &fade_in_length_spinner, 
-								   &AudioRegionEditor::stop_editing_fade_in));
-
-	fade_out_length_spinner.signal_button_press_event().connect (bind (mem_fun(*this, &AudioRegionEditor::bpressed), &fade_out_length_spinner, 
-								 &AudioRegionEditor::start_editing_fade_out));
-	fade_out_length_spinner.signal_button_release_event().connect (bind (mem_fun (*this, &AudioRegionEditor::breleased), &fade_out_length_spinner, 
-								   &AudioRegionEditor::stop_editing_fade_out));
-
-	fade_in_length_adjustment.signal_value_changed().connect (mem_fun(*this, &AudioRegionEditor::fade_in_length_adjustment_changed));
-	fade_out_length_adjustment.signal_value_changed().connect (mem_fun(*this, &AudioRegionEditor::fade_out_length_adjustment_changed));
-
-	fade_in_active_button.signal_toggled().connect (mem_fun(*this, &AudioRegionEditor::fade_in_active_toggled));
-	fade_out_active_button.signal_toggled().connect (mem_fun(*this, &AudioRegionEditor::fade_out_active_toggled));
-
-	envelope_active_button.signal_button_press_event().connect (mem_fun(*this, &AudioRegionEditor::envelope_active_button_press));
-	envelope_active_button.signal_button_release_event().connect (mem_fun(*this, &AudioRegionEditor::envelope_active_button_release));
-	audition_button.signal_toggled().connect (mem_fun(*this, &AudioRegionEditor::audition_button_toggled));
-	envelope_view_button.signal_toggled().connect (mem_fun(*this, &AudioRegionEditor::envelope_view_button_toggled));
-	lock_button.signal_clicked().connect (mem_fun(*this, &AudioRegionEditor::lock_button_clicked));
-	mute_button.signal_clicked().connect (mem_fun(*this, &AudioRegionEditor::mute_button_clicked));
-	opaque_button.signal_clicked().connect (mem_fun(*this, &AudioRegionEditor::opaque_button_clicked));
-	raise_button.signal_clicked().connect (mem_fun(*this, &AudioRegionEditor::raise_button_clicked));
-	lower_button.signal_clicked().connect (mem_fun(*this, &AudioRegionEditor::lower_button_clicked));
-	_session.AuditionActive.connect (mem_fun(*this, &AudioRegionEditor::audition_state_changed));
-}
-
-void
-AudioRegionEditor::start_clock_changed ()
-{
-	_region.set_position (start_clock.current_time(), this);
-}
-
-void
-AudioRegionEditor::end_clock_changed ()
-{
-	_region.trim_end (end_clock.current_time(), this);
-
-	end_clock.set (_region.position() + _region.length(), true);
-}
-
-void
-AudioRegionEditor::length_clock_changed ()
-{
-	jack_nframes_t frames = length_clock.current_time();
-	_region.trim_end (_region.position() + frames, this);
-
-	length_clock.set (_region.length());
-}
-
-gint
-AudioRegionEditor::envelope_active_button_press(GdkEventButton *ev)
-{
-	return stop_signal (envelope_active_button, "button_press_event");
-}
-
-gint
-AudioRegionEditor::envelope_active_button_release (GdkEventButton *ev)
-{
-	_region.set_envelope_active (!_region.envelope_active());
-	return stop_signal (envelope_active_button, "button_release_event");
-}
-
-void
-AudioRegionEditor::envelope_view_button_toggled ()
-{
-	bool visible = envelope_view_button.get_active ();
-
-	_region_view.set_envelope_visible (visible);
-}
-
-void
-AudioRegionEditor::audition_button_toggled ()
-{
-	if (audition_button.get_active()) {
-		_session.audition_region (_region);
-	} else {
-		_session.cancel_audition ();
-	}
-}
-
-void
-AudioRegionEditor::raise_button_clicked ()
-{
-	_region.raise ();
-}
-
-void
-AudioRegionEditor::lower_button_clicked ()
-{
-	_region.lower ();
-}
-
-void
-AudioRegionEditor::opaque_button_clicked ()
-{
-	bool ractive = _region.opaque();
-
-	if (opaque_button.get_active() != ractive) {
-		_region.set_opaque (!ractive);
-	}
-}
-
-void
-AudioRegionEditor::mute_button_clicked ()
-{
-	bool ractive = _region.muted();
-
-	if (mute_button.get_active() != ractive) {
-		_region.set_muted (!ractive);
-	}
-}
-
-void
-AudioRegionEditor::lock_button_clicked ()
-{
-	bool ractive = _region.locked();
-
-	if (lock_button.get_active() != ractive) {
-		_region.set_locked (!ractive);
-	}
-}
-
-void
-AudioRegionEditor::layer_changed ()
-{
-	char buf[8];
-	snprintf (buf, sizeof(buf), "%d", (int) _region.layer() + 1);
-	layer_value_label.set_text (buf);
-}
-
-void
-AudioRegionEditor::name_changed ()
-{
-	if (name_entry.get_text() != _region.name()) {
-		name_entry.set_text (_region.name());
-	}
-}
-
-void
-AudioRegionEditor::lock_changed ()
-{
-	bool yn;
-
-	if ((yn = _region.locked()) != lock_button.get_active()) {
-		lock_button.set_active (yn);
-	}
-
-	start_clock.set_sensitive (!yn);
-	end_clock.set_sensitive (!yn);
-	length_clock.set_sensitive (!yn);
-}
-
-void
-AudioRegionEditor::envelope_active_changed ()
-{
-	bool yn;
-
-	if ((yn = _region.envelope_active()) != envelope_active_button.get_active()) {
-		envelope_active_button.set_active (yn);
-	}
-}
-
-void
-AudioRegionEditor::opacity_changed ()
-{
-	bool yn;
-	if ((yn = _region.opaque()) != opaque_button.get_active()) {
-		opaque_button.set_active (yn);
-	}
-}
-
-void
-AudioRegionEditor::mute_changed ()
-{
-	bool yn;
-	if ((yn = _region.muted()) != mute_button.get_active()) {
-		mute_button.set_active (yn);
-	}
-}
-
-void
-AudioRegionEditor::bounds_changed (Change what_changed)
-{
-	if (what_changed & Change ((PositionChanged|LengthChanged))) {
-		start_clock.set (_region.position(), true);
-		end_clock.set (_region.position() + _region.length(), true);
-		length_clock.set (_region.length(), true);
-	}
-}
-
-void
-AudioRegionEditor::activation ()
-{
-	
-}	
-
-void
-AudioRegionEditor::name_entry_changed ()
-{
-	if (name_entry.get_text() != _region.name()) {
-		_region.set_name (name_entry.get_text());
-	}
-}
-
-void
-AudioRegionEditor::fade_in_changed ()
-{
-	float msecs = fade_in_length_adjustment.get_value();
-	jack_nframes_t sr = _session.frame_rate();
-	jack_nframes_t adj_frames = (jack_nframes_t) floor (msecs * (sr/1000.0f));
-	jack_nframes_t frames;
-	bool x;
-
-	if (adj_frames != (frames = (jack_nframes_t) _region.fade_in().back()->when)) {
-		fade_in_length_adjustment.set_value ((frames * 1000.0f) / sr);
-	}
-
-	if ((x = _region.fade_in_active()) != fade_in_active_button.get_active()) {
-		fade_in_active_button.set_active (x);
-	}
-}
-
-void
-AudioRegionEditor::fade_out_changed ()
-{
-	float msecs = fade_out_length_adjustment.get_value();
-	jack_nframes_t sr = _session.frame_rate();
-	jack_nframes_t adj_frames = (jack_nframes_t) floor (msecs * (sr/1000.0f));
-	jack_nframes_t frames;
-	bool x;
-	if (adj_frames != (frames = (jack_nframes_t) _region.fade_out().back()->when)) {
-		fade_out_length_adjustment.set_value ((frames * 1000.0f) / sr);
-	}
-
-	if ((x = _region.fade_out_active()) != fade_out_active_button.get_active()) {
-		fade_out_active_button.set_active (x);
-	}
-}
-
-void
-AudioRegionEditor::fade_in_length_adjustment_changed ()
-{
-	jack_nframes_t fade_length = (jack_nframes_t) floor (fade_in_length_adjustment.get_value() * _session.frame_rate() * 0.001); 
-	fade_length = max (fade_length, (jack_nframes_t) 64);
-	fade_length = min (fade_length, _region.length());
-	
-	_region.set_fade_in_length (fade_length);
-	/* region is frozen, no worries */
-	fade_in_changed();
-}
-
-void
-AudioRegionEditor::fade_out_length_adjustment_changed ()
-{
-	jack_nframes_t fade_length = (jack_nframes_t) floor (fade_out_length_adjustment.get_value() * _session.frame_rate() * 0.001); 
-	fade_length = max (fade_length, (jack_nframes_t) 64);
-	fade_length = min (fade_length, _region.length());
-	
-	_region.set_fade_out_length (fade_length);	
-	/* region is frozen, no worries */
-	fade_out_changed();
-}
-
-void
-AudioRegionEditor::fade_in_active_toggled ()
-{
-	_region.set_fade_in_active (fade_in_active_button.get_active());
-}
-
-void
-AudioRegionEditor::fade_out_active_toggled ()
-{
-	_region.set_fade_out_active (fade_out_active_button.get_active());
-}
-
-void
-AudioRegionEditor::fade_out_active_changed ()
-{
-	bool x;
-
-	if ((x = _region.fade_out_active()) != fade_out_active_button.get_active()) {
-		fade_out_active_button.set_active (x);
-	}
-}
-
-void
-AudioRegionEditor::fade_in_active_changed ()
-{
-	bool x;
-
-	if ((x = _region.fade_in_active()) != fade_in_active_button.get_active()) {
-		fade_in_active_button.set_active (x);
-	}
-}
-
-void
-AudioRegionEditor::audition_state_changed (bool yn)
-{
-	ENSURE_GUI_THREAD (bind (mem_fun(*this, &AudioRegionEditor::audition_state_changed), yn));
-
-	if (!yn) {
-		audition_button.set_active (false);
-	}
-}
-