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livetrax/gtk2_ardour/editor_markers.cc
Paul Davis 3ff9964885 advance compiling to the m*.cc point
git-svn-id: svn://localhost/trunk/ardour2@108 d708f5d6-7413-0410-9779-e7cbd77b26cf
2005-11-24 14:59:36 +00:00

915 lines
23 KiB
C++

/*
Copyright (C) 2000 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 <sigc++/retype.h>
#include <cstdlib>
#include <cmath>
#include <libgnomecanvas/libgnomecanvas.h>
#include <gtkmm2ext/gtk_ui.h>
#include <ardour/location.h>
#include "editor.h"
#include "marker.h"
#include "selection.h"
#include "simplerect.h"
#include "editing.h"
#include "gui_thread.h"
#include "simplerect.h"
#include "i18n.h"
using namespace std;
using namespace sigc;
using namespace ARDOUR;
using namespace Gtk;
void
Editor::clear_marker_display ()
{
for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
delete i->second;
}
location_markers.clear ();
}
void
Editor::add_new_location (Location *location)
{
LocationMarkers *lam = new LocationMarkers;
uint32_t color;
if (location->is_cd_marker()) {
color = location_cd_marker_color;
} else if (location->is_mark()) {
color = location_marker_color;
} else if (location->is_auto_loop()) {
color = location_loop_color;
} else if (location->is_auto_punch()) {
color = location_punch_color;
} else {
color = location_range_color;
}
if (location->is_mark()) {
lam->start = new Marker (*this, *marker_group, color, location->name(), Marker::Mark, location->start());
lam->end = 0;
} else if (location->is_auto_loop()) {
// transport marker
lam->start = new Marker (*this, *transport_marker_group, color,
location->name(), Marker::LoopStart, location->start());
lam->end = new Marker (*this, *transport_marker_group, color,
location->name(), Marker::LoopEnd, location->end());
} else if (location->is_auto_punch()) {
// transport marker
lam->start = new Marker (*this, *transport_marker_group, color,
location->name(), Marker::PunchIn, location->start());
lam->end = new Marker (*this, *transport_marker_group, color,
location->name(), Marker::PunchOut, location->end());
} else {
// range marker
lam->start = new Marker (*this, *range_marker_group, color,
location->name(), Marker::Start, location->start());
lam->end = new Marker (*this, *range_marker_group, color,
location->name(), Marker::End, location->end());
}
if (location->is_hidden ()) {
lam->hide();
} else {
lam->show ();
}
location->start_changed.connect (mem_fun(*this, &Editor::location_changed));
location->end_changed.connect (mem_fun(*this, &Editor::location_changed));
location->changed.connect (mem_fun(*this, &Editor::location_changed));
location->name_changed.connect (mem_fun(*this, &Editor::location_changed));
location->FlagsChanged.connect (mem_fun(*this, &Editor::location_flags_changed));
pair<Location*,LocationMarkers*> newpair;
newpair.first = location;
newpair.second = lam;
location_markers.insert (newpair);
}
void
Editor::location_changed (Location *location)
{
ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::location_changed), location));
LocationMarkers *lam = find_location_markers (location);
if (lam == 0) {
/* a location that isn't "marked" with markers */
return;
}
lam->set_name (location->name());
lam->set_position (location->start(), location->end());
if (location->is_auto_loop()) {
update_loop_range_view ();
} else if (location->is_auto_punch()) {
update_punch_range_view ();
}
}
void
Editor::location_flags_changed (Location *location, void *src)
{
ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::location_flags_changed), location, src));
LocationMarkers *lam = find_location_markers (location);
if (lam == 0) {
/* a location that isn't "marked" with markers */
return;
}
if (location->is_cd_marker()) {
lam->set_color_rgba (location_cd_marker_color);
} else if (location->is_mark()) {
lam->set_color_rgba (location_marker_color);
} else if (location->is_auto_punch()) {
lam->set_color_rgba (location_punch_color);
} else if (location->is_auto_loop()) {
lam->set_color_rgba (location_loop_color);
} else {
lam->set_color_rgba (location_range_color);
}
if (location->is_hidden()) {
lam->hide();
} else {
lam->show ();
}
}
Editor::LocationMarkers::~LocationMarkers ()
{
if (start) {
delete start;
}
if (end) {
delete end;
}
}
Editor::LocationMarkers *
Editor::find_location_markers (Location *location)
{
LocationMarkerMap::iterator i;
for (i = location_markers.begin(); i != location_markers.end(); ++i) {
if ((*i).first == location) {
return (*i).second;
}
}
return 0;
}
Location *
Editor::find_location_from_marker (Marker *marker, bool& is_start)
{
LocationMarkerMap::iterator i;
for (i = location_markers.begin(); i != location_markers.end(); ++i) {
LocationMarkers *lm = (*i).second;
if (lm->start == marker) {
is_start = true;
return (*i).first;
} else if (lm->end == marker) {
is_start = false;
return (*i).first;
}
}
return 0;
}
void
Editor::refresh_location_display_internal (Locations::LocationList& locations)
{
clear_marker_display ();
for (Locations::LocationList::iterator i = locations.begin(); i != locations.end(); ++i) {
add_new_location (*i);
}
}
void
Editor::refresh_location_display ()
{
ENSURE_GUI_THREAD(mem_fun(*this, &Editor::refresh_location_display));
if (session) {
session->locations()->apply (*this, &Editor::refresh_location_display_internal);
}
}
void
Editor::refresh_location_display_s (Change ignored)
{
ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::refresh_location_display_s), ignored));
if (session) {
session->locations()->apply (*this, &Editor::refresh_location_display_internal);
}
}
void
Editor::LocationMarkers::hide()
{
start->hide ();
if (end) { end->hide(); }
}
void
Editor::LocationMarkers::show()
{
start->show ();
if (end) { end->show(); }
}
void
Editor::LocationMarkers::set_name (const string& str)
{
start->set_name (str);
if (end) { end->set_name (str); }
}
void
Editor::LocationMarkers::set_position (jack_nframes_t startf,
jack_nframes_t endf)
{
start->set_position (startf);
if (end) { end->set_position (endf); }
}
void
Editor::LocationMarkers::set_color_rgba (uint32_t rgba)
{
start->set_color_rgba (rgba);
if (end) { end->set_color_rgba (rgba); }
}
void
Editor::mouse_add_new_marker (jack_nframes_t where)
{
if (session) {
Location *location = new Location (where, where, "mark", Location::IsMark);
session->begin_reversible_command (_("add marker"));
session->add_undo (session->locations()->get_memento());
session->locations()->add (location, true);
session->add_redo_no_execute (session->locations()->get_memento());
session->commit_reversible_command ();
}
}
void
Editor::remove_marker (ArdourCanvas::Item& item, GdkEvent* event)
{
Marker* marker;
bool is_start;
if ((marker = static_cast<Marker*> (item.get_data ("marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
Location* loc = find_location_from_marker (marker, is_start);
if (session && loc) {
if (loc->is_end()) {
/* you can't hide or delete this marker */
return;
}
if (loc->is_auto_loop() || loc->is_auto_punch()) {
// just hide them
loc->set_hidden (true, this);
}
else {
Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
}
}
}
gint
Editor::really_remove_marker (Location* loc)
{
session->begin_reversible_command (_("remove marker"));
session->add_undo (session->locations()->get_memento());
session->locations()->remove (loc);
session->add_redo_no_execute (session->locations()->get_memento());
session->commit_reversible_command ();
return FALSE;
}
void
Editor::location_gone (Location *location)
{
ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::location_gone), location));
LocationMarkerMap::iterator i;
if (location == transport_loop_location()) {
update_loop_range_view (true);
}
if (location == transport_punch_location()) {
update_punch_range_view (true);
}
for (i = location_markers.begin(); i != location_markers.end(); ++i) {
if ((*i).first == location) {
delete (*i).second;
location_markers.erase (i);
break;
}
}
}
void
Editor::tm_marker_context_menu (GdkEventButton* ev, ArdourCanvas::Item* item)
{
if (tm_marker_menu == 0) {
build_tm_marker_menu ();
}
marker_menu_item = item;
tm_marker_menu->popup (1, ev->time);
}
void
Editor::marker_context_menu (GdkEventButton* ev, ArdourCanvas::Item* item)
{
Marker * marker;
if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(item), "marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
bool is_start;
Location * loc = find_location_from_marker (marker, is_start);
if (loc == transport_loop_location() || loc == transport_punch_location()) {
if (transport_marker_menu == 0) {
build_transport_marker_menu ();
}
marker_menu_item = item;
transport_marker_menu->popup (1, ev->time);
}
else {
if (marker_menu == 0) {
build_marker_menu ();
}
Menu_Helpers::MenuList & children = marker_menu->items();
// XXX: should really find this some other way
if (children.size() >= 3) {
MenuItem * loopitem = &children[2];
if (loopitem) {
if (loc->is_mark()) {
loopitem->set_sensitive(false);
}
else {
loopitem->set_sensitive(true);
}
}
}
marker_menu_item = item;
marker_menu->popup (1, ev->time);
}
}
void
Editor::new_transport_marker_context_menu (GdkEventButton* ev, ArdourCanvas::Item* item)
{
if (new_transport_marker_menu == 0) {
build_new_transport_marker_menu ();
}
new_transport_marker_menu->popup (1, ev->time);
}
void
Editor::transport_marker_context_menu (GdkEventButton* ev, ArdourCanvas::Item* item)
{
if (transport_marker_menu == 0) {
build_transport_marker_menu ();
}
transport_marker_menu->popup (1, ev->time);
}
void
Editor::build_marker_menu ()
{
using namespace Menu_Helpers;
marker_menu = new Menu;
MenuList& items = marker_menu->items();
marker_menu->set_name ("ArdourContextMenu");
items.push_back (MenuElem (_("Locate to"), mem_fun(*this, &Editor::marker_menu_set_playhead)));
items.push_back (MenuElem (_("Play from"), mem_fun(*this, &Editor::marker_menu_play_from)));
items.push_back (MenuElem (_("Loop range"), mem_fun(*this, &Editor::marker_menu_loop_range)));
items.push_back (MenuElem (_("Set from playhead"), mem_fun(*this, &Editor::marker_menu_set_from_playhead)));
items.push_back (MenuElem (_("Set from range"), mem_fun(*this, &Editor::marker_menu_set_from_selection)));
items.push_back (SeparatorElem());
items.push_back (MenuElem (_("Rename"), mem_fun(*this, &Editor::marker_menu_rename)));
items.push_back (MenuElem (_("Hide"), mem_fun(*this, &Editor::marker_menu_hide)));
items.push_back (MenuElem (_("Remove"), mem_fun(*this, &Editor::marker_menu_remove)));
}
void
Editor::build_tm_marker_menu ()
{
using namespace Menu_Helpers;
tm_marker_menu = new Menu;
MenuList& items = tm_marker_menu->items();
tm_marker_menu->set_name ("ArdourContextMenu");
items.push_back (MenuElem (_("Edit"), mem_fun(*this, &Editor::marker_menu_edit)));
items.push_back (MenuElem (_("Remove"), mem_fun(*this, &Editor::marker_menu_remove)));
}
void
Editor::build_new_transport_marker_menu ()
{
using namespace Menu_Helpers;
new_transport_marker_menu = new Menu;
MenuList& items = new_transport_marker_menu->items();
new_transport_marker_menu->set_name ("ArdourContextMenu");
items.push_back (MenuElem (_("Set Loop Range"), mem_fun(*this, &Editor::new_transport_marker_menu_set_loop)));
items.push_back (MenuElem (_("Set Punch Range"), mem_fun(*this, &Editor::new_transport_marker_menu_set_punch)));
new_transport_marker_menu->signal_unmap_event().connect ( mem_fun(*this, &Editor::new_transport_marker_menu_popdown));
}
void
Editor::build_transport_marker_menu ()
{
using namespace Menu_Helpers;
transport_marker_menu = new Menu;
MenuList& items = transport_marker_menu->items();
transport_marker_menu->set_name ("ArdourContextMenu");
items.push_back (MenuElem (_("Locate to"), mem_fun(*this, &Editor::marker_menu_set_playhead)));
items.push_back (MenuElem (_("Play from"), mem_fun(*this, &Editor::marker_menu_play_from)));
items.push_back (MenuElem (_("Set from playhead"), mem_fun(*this, &Editor::marker_menu_set_from_playhead)));
items.push_back (MenuElem (_("Set from range"), mem_fun(*this, &Editor::marker_menu_set_from_selection)));
items.push_back (SeparatorElem());
items.push_back (MenuElem (_("Hide"), mem_fun(*this, &Editor::marker_menu_hide)));
}
void
Editor::marker_menu_hide ()
{
Marker* marker;
if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
Location* l;
bool is_start;
if ((l = find_location_from_marker (marker, is_start)) != 0) {
l->set_hidden (true, this);
}
}
void
Editor::marker_menu_play_from ()
{
Marker* marker;
if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
Location* l;
bool is_start;
if ((l = find_location_from_marker (marker, is_start)) != 0) {
if (l->is_mark()) {
session->request_locate (l->start(), true);
}
else {
//session->request_bounded_roll (l->start(), l->end());
if (is_start) {
session->request_locate (l->start(), true);
} else {
session->request_locate (l->end(), true);
}
}
}
}
void
Editor::marker_menu_set_playhead ()
{
Marker* marker;
if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
Location* l;
bool is_start;
if ((l = find_location_from_marker (marker, is_start)) != 0) {
if (l->is_mark()) {
session->request_locate (l->start(), false);
}
else {
if (is_start) {
session->request_locate (l->start(), false);
} else {
session->request_locate (l->end(), false);
}
}
}
}
void
Editor::marker_menu_set_from_playhead ()
{
Marker* marker;
if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
Location* l;
bool is_start;
if ((l = find_location_from_marker (marker, is_start)) != 0) {
if (l->is_mark()) {
l->set_start (session->transport_frame ());
}
else {
if (is_start) {
l->set_start (session->transport_frame ());
} else {
l->set_end (session->transport_frame ());
}
}
}
}
void
Editor::marker_menu_set_from_selection ()
{
Marker* marker;
if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
Location* l;
bool is_start;
if ((l = find_location_from_marker (marker, is_start)) != 0) {
if (l->is_mark()) {
// nothing for now
}
else {
/* if range selection use first to last */
if (mouse_mode == Editing::MouseRange) {
if (!selection->time.empty()) {
l->set_start (selection->time.start());
l->set_end (selection->time.end_frame());
}
}
else {
if (!selection->audio_regions.empty()) {
l->set_start (selection->audio_regions.start());
l->set_end (selection->audio_regions.end_frame());
}
}
}
}
}
void
Editor::marker_menu_loop_range ()
{
Marker* marker;
if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
Location* l;
bool is_start;
if ((l = find_location_from_marker (marker, is_start)) != 0) {
Location* l2;
if ((l2 = transport_loop_location()) != 0) {
l2->set (l->start(), l->end());
// enable looping, reposition and start rolling
session->request_auto_loop(true);
session->request_locate (l2->start(), true);
}
}
}
void
Editor::marker_menu_edit ()
{
MeterMarker* mm;
TempoMarker* tm;
Marker* marker;
if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
if ((mm = dynamic_cast<MeterMarker*> (marker)) != 0) {
edit_meter_section (&mm->meter());
} else if ((tm = dynamic_cast<TempoMarker*> (marker)) != 0) {
edit_tempo_section (&tm->tempo());
} else {
fatal << X_("programming erorr: unhandled marker type in Editor::marker_menu_edit")
<< endmsg;
/*NOTREACHED*/
}
}
void
Editor::marker_menu_remove ()
{
MeterMarker* mm;
TempoMarker* tm;
Marker* marker;
if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
if ((mm = dynamic_cast<MeterMarker*> (marker)) != 0) {
remove_meter_marker (marker_menu_item);
} else if ((tm = dynamic_cast<TempoMarker*> (marker)) != 0) {
remove_tempo_marker (marker_menu_item);
} else {
remove_marker (*marker_menu_item, (GdkEvent*) 0);
}
}
void
Editor::marker_menu_rename ()
{
Marker* marker;
if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
Location* loc;
bool is_start;
loc = find_location_from_marker (marker, is_start);
if (!loc) return;
Dialog dialog;
Entry entry;
Button ok_button (_("OK"));
Button cancel_button (_("Cancel"));
if (loc->is_mark()) {
dialog.set_title (_("ardour: rename mark"));
} else {
dialog.set_title (_("ardour: rename range"));
}
dialog.set_name ("MarkRenameWindow");
dialog.set_size_request (300, -1);
dialog.set_position (Gtk::WIN_POS_MOUSE);
dialog.set_modal (true);
dialog.get_vbox()->set_border_width (10);
dialog.get_vbox()->pack_start (entry);
dialog.get_action_area()->pack_start (ok_button);
dialog.get_action_area()->pack_start (cancel_button);
entry.set_text (loc->name());
entry.set_name ("MarkerNameDisplay");
ok_button.set_name ("EditorGTKButton");
cancel_button.set_name ("EditorGTKButton");
entry.signal_activate().connect (bind (mem_fun(*this, &Editor::finish_sub_event_loop), 1));
cancel_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::finish_sub_event_loop), -1));
ok_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::finish_sub_event_loop), 1));
dialog.signal_delete_event().connect (bind (mem_fun(*this, &Editor::finish_sub_event_loop_on_delete), -1));
dialog.show_all ();
entry.grab_focus ();
run_sub_event_loop ();
if (sub_event_loop_status == 1) {
Location* l;
bool is_start;
if ((l = find_location_from_marker (marker, is_start)) != 0) {
l->set_name (entry.get_text());
}
}
}
gint
Editor::new_transport_marker_menu_popdown (GdkEventAny *ev)
{
// hide rects
transport_bar_drag_rect->hide();
range_marker_drag_rect->hide();
return FALSE;
}
void
Editor::new_transport_marker_menu_set_loop ()
{
if (!session) return;
begin_reversible_command (_("set loop range"));
Location* tll;
if ((tll = transport_loop_location()) == 0) {
Location* loc = new Location (temp_location->start(), temp_location->end(), _("Loop"), Location::IsAutoLoop);
session->add_undo (session->locations()->get_memento());
session->locations()->add (loc, true);
session->set_auto_loop_location (loc);
session->add_redo_no_execute (session->locations()->get_memento());
}
else {
session->add_undo (retype_return<void>(bind (mem_fun (*tll, &Location::set), tll->start(), tll->end())));
session->add_redo (retype_return<void>(bind (mem_fun (*tll, &Location::set), temp_location->start(), temp_location->end())));
tll->set_hidden (false, this);
tll->set (temp_location->start(), temp_location->end());
}
commit_reversible_command ();
}
void
Editor::new_transport_marker_menu_set_punch ()
{
if (!session) return;
begin_reversible_command (_("set punch range"));
Location* tpl;
if ((tpl = transport_punch_location()) == 0) {
tpl = new Location (temp_location->start(), temp_location->end(), _("Punch"), Location::IsAutoPunch);
session->add_undo (session->locations()->get_memento());
session->locations()->add (tpl, true);
session->set_auto_punch_location (tpl);
session->add_redo_no_execute (session->locations()->get_memento());
} else {
session->add_undo (retype_return<void>(bind (mem_fun (*tpl, &Location::set), tpl->start(), tpl->end())));
session->add_redo (retype_return<void>(bind (mem_fun (*tpl, &Location::set), temp_location->start(), temp_location->end())));
tpl->set_hidden(false, this);
tpl->set(temp_location->start(), temp_location->end());
}
commit_reversible_command ();
}
void
Editor::update_loop_range_view (bool visibility)
{
if (session == 0) {
return;
}
Location* tll;
if (session->get_auto_loop() && ((tll = transport_loop_location()) != 0)) {
double x1 = frame_to_pixel (tll->start());
double x2 = frame_to_pixel (tll->end());
transport_loop_range_rect->set_property ("x1", x1);
transport_loop_range_rect->set_property ("x2", x2);
if (visibility) {
transport_loop_range_rect->show();
}
}
else if (visibility) {
transport_loop_range_rect->hide();
}
}
void
Editor::update_punch_range_view (bool visibility)
{
if (session == 0) {
return;
}
Location* tpl;
if ((session->get_punch_in() || session->get_punch_out()) && ((tpl = transport_punch_location()) != 0)) {
double x1 = frame_to_pixel (tpl->start());
double x2 = frame_to_pixel (tpl->end());
transport_punch_range_rect->set_property ("x1", x1);
transport_punch_range_rect->set_property ("x2", x2);
if (visibility) {
transport_punch_range_rect->show();
}
}
else if (visibility) {
transport_punch_range_rect->hide();
}
// if (session->get_punch_in()) {
// double x = frame_to_pixel (transport_punch_location->start());
// gnome_canvas_item_set (transport_punchin_line, "x1", x, "x2", x, NULL);
// if (visibility) {
// gnome_canvas_item_show (transport_punchin_line);
// }
// }
// else if (visibility) {
// gnome_canvas_item_hide (transport_punchin_line);
// }
// if (session->get_punch_out()) {
// double x = frame_to_pixel (transport_punch_location->end());
// gnome_canvas_item_set (transport_punchout_line, "x1", x, "x2", x, NULL);
// if (visibility) {
// gnome_canvas_item_show (transport_punchout_line);
// }
// }
// else if (visibility) {
// gnome_canvas_item_hide (transport_punchout_line);
// }
}