gtk2_ardour/transport_masters_dialog.cc

   1 /*
   2     Copyright (C) 2018 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19 #include <gtkmm/stock.h>
  20
  21 #include "pbd/enumwriter.h"
  22 #include "pbd/i18n.h"
  23
  24 #include "temporal/time.h"
  25
  26 #include "ardour/audioengine.h"
  27 #include "ardour/session.h"
  28 #include "ardour/transport_master.h"
  29 #include "ardour/transport_master_manager.h"
  30
  31 #include "widgets/tooltips.h"
  32
  33 #include "gtkmm2ext/utils.h"
  34 #include "gtkmm2ext/gui_thread.h"
  35
  36 #include "ardour_ui.h"
  37 #include "floating_text_entry.h"
  38 #include "transport_masters_dialog.h"
  39
  40
  41 using namespace std;
  42 using namespace Gtk;
  43 using namespace Gtkmm2ext;
  44 using namespace ARDOUR;
  45 using namespace PBD;
  46 using namespace ArdourWidgets;
  47
  48 TransportMastersWidget::TransportMastersWidget ()
  49         : table (4, 13)
  50         , add_button (_("Add a new Transport Master"))
  51 {
  52         pack_start (table, PACK_EXPAND_WIDGET, 12);
  53         pack_start (add_button, FALSE, FALSE);
  54
  55         add_button.signal_clicked ().connect (sigc::mem_fun (*this, &TransportMastersWidget::add_master));
  56
  57         col_title[0].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Use")));
  58         col_title[1].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Name")));
  59         col_title[2].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Type")));
  60         col_title[3].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Format/\nBPM")));
  61         col_title[4].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Current")));
  62         col_title[5].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Last")));
  63         col_title[6].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Timestamp")));
  64         col_title[7].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Delta")));
  65         col_title[8].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Collect")));
  66         col_title[9].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Data Source")));
  67         col_title[10].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Active\nCommands")));
  68         col_title[11].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Clock\nSynced")));
  69         col_title[12].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("29.97/\n30")));
  70         col_title[13].set_markup (string_compose ("<span weight=\"bold\">%1</span>", _("Remove")));
  71
  72         set_tooltip (col_title[12], _("<b>When enabled</b> the external timecode source is assumed to use 29.97 fps instead of 30000/1001.\n"
  73                                       "SMPTE 12M-1999 specifies 29.97df as 30000/1001. The spec further mentions that "
  74                                       "drop-sample timecode has an accumulated error of -86ms over a 24-hour period.\n"
  75                                       "Drop-sample timecode would compensate exactly for a NTSC color frame rate of 30 * 0.9990 (ie 29.970000). "
  76                                       "That is not the actual rate. However, some vendors use that rate - despite it being against the specs - "
  77                                       "because the variant of using exactly 29.97 fps has zero timecode drift.\n"
  78                              ));
  79
  80         set_tooltip (col_title[11], string_compose (_("<b>When enabled</b> the external timecode source is assumed to be sample-clock synced to the audio interface\n"
  81                                                       "being used by %1."), PROGRAM_NAME));
  82
  83         table.set_spacings (6);
  84
  85         TransportMasterManager::instance().CurrentChanged.connect (current_connection, invalidator (*this), boost::bind (&TransportMastersWidget::current_changed, this, _1, _2), gui_context());
  86         TransportMasterManager::instance().Added.connect (add_connection, invalidator (*this), boost::bind (&TransportMastersWidget::rebuild, this), gui_context());
  87         TransportMasterManager::instance().Removed.connect (remove_connection, invalidator (*this), boost::bind (&TransportMastersWidget::rebuild, this), gui_context());
  88
  89         rebuild ();
  90 }
  91
  92 TransportMastersWidget::~TransportMastersWidget ()
  93 {
  94         for (vector<Row*>::iterator r = rows.begin(); r != rows.end(); ++r) {
  95                 delete *r;
  96         }
  97 }
  98
  99 void
 100 TransportMastersWidget::set_transport_master (boost::shared_ptr<TransportMaster> tm)
 101 {
 102         _session->request_sync_source (tm);
 103 }
 104
 105 void
 106 TransportMastersWidget::current_changed (boost::shared_ptr<TransportMaster> old_master, boost::shared_ptr<TransportMaster> new_master)
 107 {
 108         for (vector<Row*>::iterator r = rows.begin(); r != rows.end(); ++r) {
 109                 if ((*r)->tm == new_master) {
 110                         (*r)->use_button.set_active (true);
 111                         break; /* there can only be one */
 112                 }
 113         }
 114 }
 115
 116 void
 117 TransportMastersWidget::add_master ()
 118 {
 119         AddTransportMasterDialog d;
 120
 121         d.present ();
 122         int r = d.run ();
 123
 124         switch (r) {
 125         case RESPONSE_ACCEPT:
 126                 break;
 127         default:
 128                 return;
 129         }
 130
 131         TransportMasterManager::instance().add (d.get_type(), d.get_name());
 132 }
 133
 134 void
 135 TransportMastersWidget::rebuild ()
 136 {
 137         TransportMasterManager::TransportMasters const & masters (TransportMasterManager::instance().transport_masters());
 138
 139         container_clear (table);
 140
 141         for (vector<Row*>::iterator r = rows.begin(); r != rows.end(); ++r) {
 142                 delete *r;
 143         }
 144
 145         rows.clear ();
 146         table.resize (masters.size()+1, 14);
 147
 148         for (size_t col = 0; col < sizeof (col_title) / sizeof (col_title[0]); ++col) {
 149                 table.attach (col_title[col], col, col+1, 0, 1);
 150         }
 151
 152         uint32_t n = 1;
 153
 154         Gtk::RadioButtonGroup use_button_group;
 155
 156         for (TransportMasterManager::TransportMasters::const_iterator m = masters.begin(); m != masters.end(); ++m, ++n) {
 157
 158                 Row* r = new Row (*this);
 159                 rows.push_back (r);
 160
 161                 r->tm = *m;
 162                 r->label.set_text ((*m)->name());
 163                 r->type.set_text (enum_2_string  ((*m)->type()));
 164
 165                 r->use_button.set_group (use_button_group);
 166
 167                 if (TransportMasterManager::instance().current() == r->tm) {
 168                         r->use_button.set_active (true);
 169                 }
 170
 171                 int col = 0;
 172
 173                 r->label_box.add (r->label);
 174
 175                 table.attach (r->use_button, col, col+1, n, n+1); ++col;
 176                 table.attach (r->label_box, col, col+1, n, n+1); ++col;
 177                 table.attach (r->type, col, col+1, n, n+1); ++col;
 178                 table.attach (r->format, col, col+1, n, n+1); ++col;
 179                 table.attach (r->current, col, col+1, n, n+1); ++col;
 180                 table.attach (r->last, col, col+1, n, n+1); ++col;
 181                 table.attach (r->timestamp, col, col+1, n, n+1); ++col;
 182                 table.attach (r->delta, col, col+1, n, n+1); ++col;
 183                 table.attach (r->collect_button, col, col+1, n, n+1); ++col;
 184                 table.attach (r->port_combo, col, col+1, n, n+1); ++col;
 185                 table.attach (r->request_options, col, col+1, n, n+1); ++col;
 186
 187                 boost::shared_ptr<TimecodeTransportMaster> ttm (boost::dynamic_pointer_cast<TimecodeTransportMaster> (r->tm));
 188
 189                 if (ttm) {
 190                         table.attach (r->sclock_synced_button, col, col+1, n, n+1); ++col;
 191                         table.attach (r->fr2997_button, col, col+1, n, n+1); ++col;
 192                         r->fr2997_button.signal_toggled().connect (sigc::mem_fun (*r, &TransportMastersWidget::Row::fr2997_button_toggled));
 193                 } else {
 194                         col += 2;
 195                 }
 196
 197                 if (r->tm->removeable()) {
 198                         table.attach (r->remove_button, col, col+1, n, n+1); ++col;
 199                 } else {
 200                         col++;
 201                 }
 202
 203                 table.show_all ();
 204
 205                 // r->label_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 206                 r->label_box.signal_button_press_event().connect (sigc::mem_fun (*r, &TransportMastersWidget::Row::name_press));
 207                 r->port_combo.signal_changed().connect (sigc::mem_fun (*r, &TransportMastersWidget::Row::port_choice_changed));
 208                 r->use_button.signal_toggled().connect (sigc::mem_fun (*r, &TransportMastersWidget::Row::use_button_toggled));
 209                 r->collect_button.signal_toggled().connect (sigc::mem_fun (*r, &TransportMastersWidget::Row::collect_button_toggled));
 210                 r->request_options.signal_button_press_event().connect (sigc::mem_fun (*r, &TransportMastersWidget::Row::request_option_press), false);
 211                 r->remove_button.signal_clicked().connect (sigc::mem_fun (*r, &TransportMastersWidget::Row::remove_clicked));
 212
 213                 if (ttm) {
 214                         r->sclock_synced_button.signal_toggled().connect (sigc::mem_fun (*r, &TransportMastersWidget::Row::sync_button_toggled));
 215                 }
 216
 217                 r->tm->PropertyChanged.connect (r->property_change_connection, invalidator (*this), boost::bind (&TransportMastersWidget::Row::prop_change, r, _1), gui_context());
 218
 219                 PropertyChange all_change;
 220                 all_change.add (Properties::locked);
 221                 all_change.add (Properties::collect);
 222                 all_change.add (Properties::connected);
 223
 224                 if (ttm) {
 225                         all_change.add (Properties::fr2997);
 226                         all_change.add (Properties::sclock_synced);
 227                 }
 228
 229                 r->prop_change (all_change);
 230         }
 231 }
 232
 233 TransportMastersWidget::Row::Row (TransportMastersWidget& p)
 234         : parent (p)
 235         , request_option_menu (0)
 236         , remove_button (X_("x"))
 237         , name_editor (0)
 238         , save_when (0)
 239         , ignore_active_change (false)
 240 {
 241 }
 242
 243 bool
 244 TransportMastersWidget::Row::name_press (GdkEventButton* ev)
 245 {
 246         if (ev->type == GDK_2BUTTON_PRESS && ev->button == 1) {
 247                 Gtk::Window* toplevel = dynamic_cast<Gtk::Window*> (label.get_toplevel());
 248                 if (!toplevel) {
 249                         return false;
 250                 }
 251                 name_editor = new FloatingTextEntry (toplevel, tm->name());
 252                 name_editor->use_text.connect (sigc::mem_fun (*this, &TransportMastersWidget::Row::name_edited));
 253                 name_editor->show ();
 254                 return true;
 255         }
 256         return false;
 257 }
 258
 259 gboolean
 260 TransportMastersWidget::Row::_idle_remove (gpointer arg)
 261 {
 262         TransportMastersWidget::Row* row = (TransportMastersWidget::Row*) arg;
 263         TransportMasterManager::instance().remove (row->tm->name());
 264
 265         return FALSE; /* do not call again */
 266 }
 267
 268 void
 269 TransportMastersWidget::Row::remove_clicked ()
 270 {
 271         /* have to do this via an idle callback, because it will destroy the
 272            widget from which this callback was initiated.
 273         */
 274         g_idle_add_full (G_PRIORITY_HIGH_IDLE + 10, _idle_remove, this, NULL);
 275 }
 276
 277 void
 278 TransportMastersWidget::Row::name_edited (string str, int ignored)
 279 {
 280         tm->set_name (str);
 281         /* floating text entry deletes itself */
 282         name_editor = 0;
 283 }
 284
 285 void
 286 TransportMastersWidget::Row::prop_change (PropertyChange what_changed)
 287 {
 288         if (what_changed.contains (Properties::locked)) {
 289         }
 290
 291         if (what_changed.contains (Properties::fr2997)) {
 292                 fr2997_button.set_active (boost::dynamic_pointer_cast<TimecodeTransportMaster> (tm)->fr2997());
 293         }
 294
 295         if (what_changed.contains (Properties::sclock_synced)) {
 296                 sclock_synced_button.set_active (boost::dynamic_pointer_cast<TimecodeTransportMaster> (tm)->sample_clock_synced());
 297         }
 298
 299         if (what_changed.contains (Properties::collect)) {
 300                 collect_button.set_active (tm->collect());
 301         }
 302
 303         if (what_changed.contains (Properties::connected)) {
 304                 populate_port_combo ();
 305         }
 306
 307         if (what_changed.contains (Properties::name)) {
 308                 label.set_text (tm->name());
 309         }
 310 }
 311
 312 void
 313 TransportMastersWidget::Row::use_button_toggled ()
 314 {
 315         if (use_button.get_active()) {
 316                 parent.set_transport_master (tm);
 317         }
 318 }
 319
 320 void
 321 TransportMastersWidget::Row::fr2997_button_toggled ()
 322 {
 323         boost::dynamic_pointer_cast<TimecodeTransportMaster>(tm)->set_fr2997 (fr2997_button.get_active());
 324 }
 325
 326 void
 327 TransportMastersWidget::Row::collect_button_toggled ()
 328 {
 329         tm->set_collect (collect_button.get_active());
 330 }
 331
 332 void
 333 TransportMastersWidget::Row::sync_button_toggled ()
 334 {
 335         tm->set_sample_clock_synced (sclock_synced_button.get_active());
 336 }
 337
 338 bool
 339 TransportMastersWidget::Row::request_option_press (GdkEventButton* ev)
 340 {
 341         if (ev->button == 1) {
 342                 if (!request_option_menu) {
 343                         build_request_options ();
 344                 }
 345                 request_option_menu->popup (1, ev->time);
 346                 return true;
 347         }
 348         return false;
 349 }
 350
 351 void
 352 TransportMastersWidget::Row::build_request_options ()
 353 {
 354         using namespace Gtk::Menu_Helpers;
 355
 356         request_option_menu = manage (new Menu);
 357
 358         MenuList& items (request_option_menu->items());
 359
 360         items.push_back (CheckMenuElem (_("Accept speed-changing commands (start/stop)")));
 361         Gtk::CheckMenuItem* i = dynamic_cast<Gtk::CheckMenuItem *> (&items.back ());
 362         i->set_active (tm->request_mask() & TR_Speed);
 363         items.push_back (CheckMenuElem (_("Accept locate commands")));
 364         i = dynamic_cast<Gtk::CheckMenuItem *> (&items.back ());
 365         i->set_active (tm->request_mask() & TR_Locate);
 366 }
 367
 368 Glib::RefPtr<Gtk::ListStore>
 369 TransportMastersWidget::Row::build_port_list (vector<string> const & ports)
 370 {
 371         Glib::RefPtr<Gtk::ListStore> store = ListStore::create (port_columns);
 372         TreeModel::Row row;
 373
 374         row = *store->append ();
 375         row[port_columns.full_name] = string();
 376         row[port_columns.short_name] = _("Disconnected");
 377
 378         for (vector<string>::const_iterator p = ports.begin(); p != ports.end(); ++p) {
 379
 380                 if (AudioEngine::instance()->port_is_mine (*p)) {
 381                         continue;
 382                 }
 383
 384                 row = *store->append ();
 385                 row[port_columns.full_name] = *p;
 386
 387                 std::string pn = ARDOUR::AudioEngine::instance()->get_pretty_name_by_name (*p);
 388                 if (pn.empty ()) {
 389                         pn = (*p).substr ((*p).find (':') + 1);
 390                 }
 391                 row[port_columns.short_name] = pn;
 392         }
 393
 394         return store;
 395 }
 396
 397 void
 398 TransportMastersWidget::Row::populate_port_combo ()
 399 {
 400         if (!tm->port()) {
 401                 port_combo.hide ();
 402                 return;
 403         } else {
 404                 port_combo.show ();
 405         }
 406
 407         vector<string> inputs;
 408
 409         if (tm->port()->type() == DataType::MIDI) {
 410                 ARDOUR::AudioEngine::instance()->get_ports ("", ARDOUR::DataType::MIDI, ARDOUR::PortFlags (ARDOUR::IsOutput), inputs);
 411         } else {
 412                 ARDOUR::AudioEngine::instance()->get_ports ("", ARDOUR::DataType::AUDIO, ARDOUR::PortFlags (ARDOUR::IsOutput), inputs);
 413         }
 414
 415         Glib::RefPtr<Gtk::ListStore> input = build_port_list (inputs);
 416         bool input_found = false;
 417         int n;
 418
 419         port_combo.set_model (input);
 420
 421         Gtk::TreeModel::Children children = input->children();
 422         Gtk::TreeModel::Children::iterator i;
 423         i = children.begin();
 424         ++i; /* skip "Disconnected" */
 425
 426
 427         for (n = 1;  i != children.end(); ++i, ++n) {
 428                 string port_name = (*i)[port_columns.full_name];
 429                 if (tm->port()->connected_to (port_name)) {
 430                         port_combo.set_active (n);
 431                         input_found = true;
 432                         break;
 433                 }
 434         }
 435
 436         if (!input_found) {
 437                 port_combo.set_active (0); /* disconnected */
 438         }
 439 }
 440
 441 void
 442 TransportMastersWidget::Row::port_choice_changed ()
 443 {
 444         if (ignore_active_change) {
 445                 return;
 446         }
 447
 448         TreeModel::iterator active = port_combo.get_active ();
 449         string new_port = (*active)[port_columns.full_name];
 450
 451         if (new_port.empty()) {
 452                 tm->port()->disconnect_all ();
 453                 return;
 454         }
 455
 456         if (!tm->port()->connected_to (new_port)) {
 457                 tm->port()->disconnect_all ();
 458                 tm->port()->connect (new_port);
 459         }
 460 }
 461
 462 void
 463 TransportMastersWidget::Row::update (Session* s, samplepos_t now)
 464 {
 465         using namespace Timecode;
 466
 467         samplepos_t pos;
 468         double speed;
 469         samplepos_t most_recent;
 470         samplepos_t when;
 471         stringstream ss;
 472         Time t;
 473         Time l;
 474         boost::shared_ptr<TimecodeTransportMaster> ttm;
 475         boost::shared_ptr<MIDIClock_TransportMaster> mtm;
 476
 477         if (s) {
 478
 479                 if (tm->speed_and_position (speed, pos, most_recent, when, now)) {
 480
 481                         sample_to_timecode (pos, t, false, false, 25, false, AudioEngine::instance()->sample_rate(), 100, false, 0);
 482                         sample_to_timecode (most_recent, l, false, false, 25, false, AudioEngine::instance()->sample_rate(), 100, false, 0);
 483
 484                         if ((ttm = boost::dynamic_pointer_cast<TimecodeTransportMaster> (tm))) {
 485                                 format.set_text (timecode_format_name (ttm->apparent_timecode_format()));
 486                                 last.set_text (Timecode::timecode_format_time (l));
 487                         } else if ((mtm = boost::dynamic_pointer_cast<MIDIClock_TransportMaster> (tm))) {
 488                                 char buf[8];
 489                                 snprintf (buf, sizeof (buf), "%.1f", mtm->bpm());
 490                                 format.set_text (buf);
 491                                 last.set_text ("");
 492                         } else {
 493                                 format.set_text ("");
 494                                 last.set_text ("");
 495                         }
 496                         current.set_text (Timecode::timecode_format_time (t));
 497                         delta.set_markup (tm->delta_string ());
 498
 499                         char gap[32];
 500                         const float seconds = (when - now) / (float) AudioEngine::instance()->sample_rate();
 501                         if (abs (seconds) < 1.0) {
 502                                 snprintf (gap, sizeof (gap), "%.3fs", seconds);
 503                         } else if (abs (seconds) < 4.0) {
 504                                 snprintf (gap, sizeof (gap), "%ds", (int) floor (seconds));
 505                         } else {
 506                                 snprintf (gap, sizeof (gap), "%s", _(">4s ago"));
 507                         }
 508                         timestamp.set_text (gap);
 509                         save_when = when;
 510
 511                 } else {
 512
 513                         if (save_when) {
 514                                 char gap[32];
 515
 516                                 const float seconds = (when - now) / (float) AudioEngine::instance()->sample_rate();
 517                                 if (abs (seconds) < 1.0) {
 518                                         snprintf (gap, sizeof (gap), "%.3fs", seconds);
 519                                 } else if (abs (seconds) < 4.0) {
 520                                         snprintf (gap, sizeof (gap), "%ds", (int) floor (seconds));
 521                                 } else {
 522                                         snprintf (gap, sizeof (gap), "%s", _(">4s ago"));
 523                                 }
 524                                 timestamp.set_text (gap);
 525                                 save_when = when;
 526                         }
 527                         delta.set_text ("");
 528                         current.set_text ("");
 529                 }
 530         }
 531 }
 532
 533 void
 534 TransportMastersWidget::update (samplepos_t /* audible */)
 535 {
 536         samplepos_t now = AudioEngine::instance()->sample_time ();
 537
 538         for (vector<Row*>::iterator r = rows.begin(); r != rows.end(); ++r) {
 539                 (*r)->update (_session, now);
 540         }
 541 }
 542
 543 void
 544 TransportMastersWidget::on_map ()
 545 {
 546         update_connection = ARDOUR_UI::Clock.connect (sigc::mem_fun (*this, &TransportMastersWidget::update));
 547         Gtk::VBox::on_map ();
 548 }
 549
 550 void
 551 TransportMastersWidget::on_unmap ()
 552 {
 553         update_connection.disconnect ();
 554         Gtk::VBox::on_unmap ();
 555 }
 556
 557 TransportMastersWindow::TransportMastersWindow ()
 558         : ArdourWindow (_("Transport Masters"))
 559 {
 560         add (w);
 561         w.show ();
 562 }
 563
 564 void
 565 TransportMastersWindow::on_realize ()
 566 {
 567         ArdourWindow::on_realize ();
 568         /* (try to) ensure that resizing is possible and the window can be moved (and closed) */
 569         get_window()->set_decorations (Gdk::DECOR_BORDER | Gdk::DECOR_RESIZEH | Gdk::DECOR_TITLE | Gdk::DECOR_MENU);
 570 }
 571
 572
 573
 574 void
 575 TransportMastersWindow::set_session (ARDOUR::Session* s)
 576 {
 577         ArdourWindow::set_session (s);
 578         w.set_session (s);
 579 }
 580
 581 TransportMastersWidget::AddTransportMasterDialog::AddTransportMasterDialog ()
 582         : ArdourDialog (_("Add Transport Master"), true, false)
 583         , name_label (_("Name"))
 584         , type_label (_("Type"))
 585 {
 586         name_hbox.set_spacing (6);
 587         name_hbox.pack_start (name_label, false, false);
 588         name_hbox.pack_start (name_entry, true, true);
 589
 590         type_hbox.set_spacing (6);
 591         type_hbox.pack_start (type_label, false, false);
 592         type_hbox.pack_start (type_combo, true, true);
 593
 594         vector<string> s;
 595
 596         s.push_back (X_("MTC"));
 597         s.push_back (X_("LTC"));
 598         s.push_back (X_("MIDI Clock"));
 599
 600         set_popdown_strings (type_combo, s);
 601         type_combo.set_active_text (X_("LTC"));
 602
 603         get_vbox()->pack_start (name_hbox, false, false);
 604         get_vbox()->pack_start (type_hbox, false, false);
 605
 606         add_button (_("Cancel"), RESPONSE_CANCEL);
 607         add_button (_("Add"), RESPONSE_ACCEPT);
 608
 609         name_entry.show ();
 610         type_combo.show ();
 611         name_label.show ();
 612         type_label.show ();
 613         name_hbox.show ();
 614         type_hbox.show ();
 615 }
 616
 617 string
 618 TransportMastersWidget::AddTransportMasterDialog::get_name () const
 619 {
 620         return name_entry.get_text ();
 621 }
 622
 623 SyncSource
 624 TransportMastersWidget::AddTransportMasterDialog::get_type() const
 625 {
 626         string t = type_combo.get_active_text ();
 627
 628         if (t == X_("MTC")) {
 629                 return MTC;
 630         } else if (t == X_("MIDI Clock")) {
 631                 return MIDIClock;
 632         }
 633
 634         return LTC;
 635 }