gtk2_ardour/port_group.cc

   1 /*
   2     Copyright (C) 2002-2009 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
  20 #include <cstring>
  21 #include <boost/shared_ptr.hpp>
  22 #include <boost/algorithm/string.hpp>
  23
  24 #include "midi++/mmc.h"
  25
  26 #include "ardour/audioengine.h"
  27 #include "ardour/auditioner.h"
  28 #include "ardour/bundle.h"
  29 #include "ardour/control_protocol_manager.h"
  30 #include "ardour/io_processor.h"
  31 #include "ardour/midi_port.h"
  32 #include "ardour/midiport_manager.h"
  33 #include "ardour/port.h"
  34 #include "ardour/profile.h"
  35 #include "ardour/session.h"
  36 #include "ardour/user_bundle.h"
  37
  38 #include "control_protocol/control_protocol.h"
  39
  40 #include "gui_thread.h"
  41 #include "port_group.h"
  42 #include "port_matrix.h"
  43 #include "time_axis_view.h"
  44 #include "public_editor.h"
  45
  46 #include "pbd/i18n.h"
  47
  48 using namespace std;
  49 using namespace Gtk;
  50 using namespace ARDOUR;
  51
  52 /** PortGroup constructor.
  53  * @param n Name.
  54  */
  55 PortGroup::PortGroup (std::string const & n)
  56         : name (n)
  57 {
  58
  59 }
  60
  61 PortGroup::~PortGroup()
  62 {
  63         for (BundleList::iterator i = _bundles.begin(); i != _bundles.end(); ++i) {
  64                 delete *i;
  65         }
  66         _bundles.clear ();
  67 }
  68
  69 /** Add a bundle to a group.
  70  *  @param b Bundle.
  71  *  @param allow_dups true to allow the group to contain more than one bundle with the same port, otherwise false.
  72  */
  73 void
  74 PortGroup::add_bundle (boost::shared_ptr<Bundle> b, bool allow_dups)
  75 {
  76         add_bundle_internal (b, boost::shared_ptr<IO> (), false, Gdk::Color (), allow_dups);
  77 }
  78
  79 /** Add a bundle to a group.
  80  *  @param b Bundle.
  81  *  @param io IO whose ports are in the bundle.
  82  */
  83 void
  84 PortGroup::add_bundle (boost::shared_ptr<Bundle> b, boost::shared_ptr<IO> io)
  85 {
  86         add_bundle_internal (b, io, false, Gdk::Color (), false);
  87 }
  88
  89 /** Add a bundle to a group.
  90  *  @param b Bundle.
  91  *  @param c Colour to represent the bundle with.
  92  */
  93 void
  94 PortGroup::add_bundle (boost::shared_ptr<Bundle> b, boost::shared_ptr<IO> io, Gdk::Color c)
  95 {
  96         add_bundle_internal (b, io, true, c, false);
  97 }
  98
  99 PortGroup::BundleRecord::BundleRecord (boost::shared_ptr<ARDOUR::Bundle> b, boost::shared_ptr<ARDOUR::IO> iop, Gdk::Color c, bool has_c)
 100         : bundle (b)
 101         , io (iop)
 102         , colour (c)
 103         , has_colour (has_c)
 104 {
 105 }
 106
 107 void
 108 PortGroup::add_bundle_internal (boost::shared_ptr<Bundle> b, boost::shared_ptr<IO> io, bool has_colour, Gdk::Color colour, bool allow_dups)
 109 {
 110         assert (b.get());
 111
 112         if (!allow_dups) {
 113
 114                 /* don't add this bundle if we already have one with the same ports */
 115
 116                 BundleList::iterator i = _bundles.begin ();
 117                 while (i != _bundles.end() && b->has_same_ports ((*i)->bundle) == false) {
 118                         ++i;
 119                 }
 120
 121                 if (i != _bundles.end ()) {
 122                         return;
 123                 }
 124         }
 125
 126         BundleRecord* br = new BundleRecord (b, io, colour, has_colour);
 127         b->Changed.connect (br->changed_connection, invalidator (*this), boost::bind (&PortGroup::bundle_changed, this, _1), gui_context());
 128         _bundles.push_back (br);
 129
 130         Changed ();
 131 }
 132
 133 void
 134 PortGroup::remove_bundle (boost::shared_ptr<Bundle> b)
 135 {
 136         assert (b.get());
 137
 138         BundleList::iterator i = _bundles.begin ();
 139         while (i != _bundles.end() && (*i)->bundle != b) {
 140                 ++i;
 141         }
 142
 143         if (i == _bundles.end()) {
 144                 return;
 145         }
 146
 147         delete *i;
 148         _bundles.erase (i);
 149
 150         Changed ();
 151 }
 152
 153 void
 154 PortGroup::bundle_changed (Bundle::Change c)
 155 {
 156         BundleChanged (c);
 157 }
 158
 159
 160 void
 161 PortGroup::clear ()
 162 {
 163         for (BundleList::iterator i = _bundles.begin(); i != _bundles.end(); ++i) {
 164                 delete *i;
 165         }
 166
 167         _bundles.clear ();
 168         Changed ();
 169 }
 170
 171 bool
 172 PortGroup::has_port (std::string const& p) const
 173 {
 174         for (BundleList::const_iterator i = _bundles.begin(); i != _bundles.end(); ++i) {
 175                 if ((*i)->bundle->offers_port_alone (p)) {
 176                         return true;
 177                 }
 178         }
 179
 180         return false;
 181 }
 182
 183 boost::shared_ptr<Bundle>
 184 PortGroup::only_bundle ()
 185 {
 186         assert (_bundles.size() == 1);
 187         return _bundles.front()->bundle;
 188 }
 189
 190
 191 ChanCount
 192 PortGroup::total_channels () const
 193 {
 194         ChanCount n;
 195         for (BundleList::const_iterator i = _bundles.begin(); i != _bundles.end(); ++i) {
 196                 n += (*i)->bundle->nchannels ();
 197         }
 198
 199         return n;
 200 }
 201
 202 boost::shared_ptr<IO>
 203 PortGroup::io_from_bundle (boost::shared_ptr<ARDOUR::Bundle> b) const
 204 {
 205         BundleList::const_iterator i = _bundles.begin ();
 206         while (i != _bundles.end() && (*i)->bundle != b) {
 207                 ++i;
 208         }
 209
 210         if (i == _bundles.end()) {
 211                 return boost::shared_ptr<IO> ();
 212         }
 213
 214         boost::shared_ptr<IO> io ((*i)->io.lock ());
 215         return io;
 216 }
 217
 218 /** Remove bundles whose channels are already represented by other, larger bundles */
 219 void
 220 PortGroup::remove_duplicates ()
 221 {
 222         BundleList::iterator i = _bundles.begin();
 223         while (i != _bundles.end()) {
 224
 225                 BundleList::iterator tmp = i;
 226                 ++tmp;
 227
 228                 bool remove = false;
 229
 230                 for (BundleList::iterator j = _bundles.begin(); j != _bundles.end(); ++j) {
 231
 232                         if ((*j)->bundle->nchannels() > (*i)->bundle->nchannels()) {
 233                                 /* this bundle is larger */
 234
 235                                 uint32_t k = 0;
 236                                 while (k < (*i)->bundle->nchannels().n_total()) {
 237                                         /* see if this channel on *i has an equivalent on *j */
 238                                         uint32_t l = 0;
 239                                         while (l < (*j)->bundle->nchannels().n_total() && (*i)->bundle->channel_ports (k) != (*j)->bundle->channel_ports (l)) {
 240                                                 ++l;
 241                                         }
 242
 243                                         if (l == (*j)->bundle->nchannels().n_total()) {
 244                                                 /* it does not */
 245                                                 break;
 246                                         }
 247
 248                                         ++k;
 249                                 }
 250
 251                                 if (k == (*i)->bundle->nchannels().n_total()) {
 252                                         /* all channels on *i are represented by the larger bundle *j, so remove *i */
 253                                         remove = true;
 254                                         break;
 255                                 }
 256                         }
 257                 }
 258
 259                 if (remove) {
 260                         _bundles.erase (i);
 261                 }
 262
 263                 i = tmp;
 264         }
 265 }
 266
 267
 268 /** PortGroupList constructor.
 269  */
 270 PortGroupList::PortGroupList ()
 271         : _signals_suspended (false), _pending_change (false), _pending_bundle_change ((Bundle::Change) 0)
 272 {
 273
 274 }
 275
 276 PortGroupList::~PortGroupList()
 277 {
 278         /* XXX need to clean up bundles, but ownership shared with PortGroups */
 279 }
 280
 281 void
 282 PortGroupList::maybe_add_processor_to_list (
 283         boost::weak_ptr<Processor> wp, list<boost::shared_ptr<IO> >* route_ios, bool inputs, set<boost::shared_ptr<IO> >& used_io
 284         )
 285 {
 286         boost::shared_ptr<Processor> p (wp.lock());
 287
 288         if (!p) {
 289                 return;
 290         }
 291
 292         boost::shared_ptr<IOProcessor> iop = boost::dynamic_pointer_cast<IOProcessor> (p);
 293
 294         if (iop) {
 295
 296                 boost::shared_ptr<IO> io = inputs ? iop->input() : iop->output();
 297
 298                 if (io && used_io.find (io) == used_io.end()) {
 299                         route_ios->push_back (io);
 300                         used_io.insert (io);
 301                 }
 302         }
 303 }
 304
 305 struct RouteIOs {
 306         RouteIOs (boost::shared_ptr<Route> r, boost::shared_ptr<IO> i) {
 307                 route = r;
 308                 ios.push_back (i);
 309         }
 310
 311         boost::shared_ptr<Route> route;
 312         /* it's ok to use a shared_ptr here as RouteIOs structs are only used during ::gather () */
 313         std::list<boost::shared_ptr<IO> > ios;
 314 };
 315
 316 class RouteIOsComparator {
 317 public:
 318         bool operator() (RouteIOs const & a, RouteIOs const & b) {
 319                 return a.route->presentation_info ().order() < b.route->presentation_info().order();
 320         }
 321 };
 322
 323 /** Gather ports from around the system and put them in this PortGroupList.
 324  *  @param type Type of ports to collect, or NIL for all types.
 325  *  @param use_session_bundles true to use the session's non-user bundles.  Doing this will mean that
 326  *  hardware ports will be gathered into stereo pairs, as the session sets up bundles for these pairs.
 327  *  Not using the session bundles will mean that all hardware IO will be presented separately.
 328  */
 329 void
 330 PortGroupList::gather (ARDOUR::Session* session, ARDOUR::DataType type, bool inputs, bool allow_dups, bool use_session_bundles)
 331 {
 332         clear ();
 333
 334         if (session == 0) {
 335                 return;
 336         }
 337
 338         boost::shared_ptr<PortGroup> bus (new PortGroup (string_compose (_("%1 Busses"), PROGRAM_NAME)));
 339         boost::shared_ptr<PortGroup> track (new PortGroup (string_compose (_("%1 Tracks"), PROGRAM_NAME)));
 340         boost::shared_ptr<PortGroup> system (new PortGroup (_("Hardware")));
 341         boost::shared_ptr<PortGroup> program (new PortGroup (string_compose (_("%1 Misc"), PROGRAM_NAME)));
 342         boost::shared_ptr<PortGroup> other (new PortGroup (_("Other")));
 343
 344         /* Find the IOs which have bundles for routes and their processors.  We store
 345            these IOs in a RouteIOs class so that we can then sort the results by route
 346            order key.
 347         */
 348
 349         boost::shared_ptr<RouteList> routes = session->get_routes ();
 350         list<RouteIOs> route_ios;
 351
 352         for (RouteList::const_iterator i = routes->begin(); i != routes->end(); ++i) {
 353
 354                 /* we never show the monitor bus inputs */
 355
 356                 if (inputs && (*i)->is_monitor()) {
 357                         continue;
 358                 }
 359
 360                 /* keep track of IOs that we have taken bundles from,
 361                    so that we can avoid taking the same IO from both
 362                    Route::output() and the main_outs Delivery
 363                 */
 364
 365                 set<boost::shared_ptr<IO> > used_io;
 366                 boost::shared_ptr<IO> io = inputs ? (*i)->input() : (*i)->output();
 367                 used_io.insert (io);
 368
 369                 RouteIOs rb (*i, io);
 370                 (*i)->foreach_processor (boost::bind (&PortGroupList::maybe_add_processor_to_list, this, _1, &rb.ios, inputs, used_io));
 371
 372                 route_ios.push_back (rb);
 373         }
 374
 375         /* Sort RouteIOs by the routes' editor order keys */
 376         route_ios.sort (RouteIOsComparator ());
 377
 378         /* Now put the bundles that belong to these sorted RouteIOs into the PortGroup. */
 379
 380         for (list<RouteIOs>::iterator i = route_ios.begin(); i != route_ios.end(); ++i) {
 381                 TimeAxisView* tv = PublicEditor::instance().axis_view_from_stripable (i->route);
 382
 383                 /* Work out which group to put these IOs' bundles in */
 384                 boost::shared_ptr<PortGroup> g;
 385                 if (boost::dynamic_pointer_cast<Track> (i->route)) {
 386                         g = track;
 387                 } else {
 388                         g = bus;
 389                 }
 390
 391                 for (list<boost::shared_ptr<IO> >::iterator j = i->ios.begin(); j != i->ios.end(); ++j) {
 392                         /* Only add the bundle if there is at least one port
 393                          * with a type that's been asked for */
 394                         if (type == DataType::NIL || (*j)->bundle()->nchannels().n(type) > 0) {
 395                                 if (tv) {
 396                                         g->add_bundle ((*j)->bundle(), *j, tv->color ());
 397                                 } else {
 398                                         g->add_bundle ((*j)->bundle(), *j);
 399                                 }
 400                         }
 401                 }
 402         }
 403
 404         /* Bundles owned by the session; add user bundles first, then normal ones, so
 405            that UserBundles that offer the same ports as a normal bundle get priority
 406         */
 407
 408         boost::shared_ptr<BundleList> b = session->bundles ();
 409
 410         for (BundleList::iterator i = b->begin(); i != b->end(); ++i) {
 411                 if (boost::dynamic_pointer_cast<UserBundle> (*i) && (*i)->ports_are_inputs() == inputs) {
 412                         system->add_bundle (*i, allow_dups);
 413                 }
 414         }
 415
 416         /* Only look for non-user bundles if instructed to do so */
 417         if (use_session_bundles) {
 418                 for (BundleList::iterator i = b->begin(); i != b->end(); ++i) {
 419                         if (boost::dynamic_pointer_cast<UserBundle> (*i) == 0 && (*i)->ports_are_inputs() == inputs) {
 420                                 system->add_bundle (*i, allow_dups);
 421                         }
 422                 }
 423         }
 424
 425         /* miscellany */
 426
 427         if (type == DataType::AUDIO || type == DataType::NIL) {
 428                 if (!inputs) {
 429                         program->add_bundle (session->the_auditioner()->output()->bundle());
 430                         program->add_bundle (session->click_io()->bundle());
 431                         /* Note: the LTC ports do not have the usual ":audio_out 1" postfix, so
 432                          *  program->add_bundle (session->ltc_output_io()->bundle());
 433                          *  won't work
 434                          */
 435                         boost::shared_ptr<Bundle> ltc (new Bundle (_("LTC Out"), inputs));
 436                         ltc->add_channel (_("LTC Out"), DataType::AUDIO, session->engine().make_port_name_non_relative (session->ltc_output_port()->name()));
 437                         program->add_bundle (ltc);
 438                 } else {
 439                         boost::shared_ptr<Bundle> ltc (new Bundle (_("LTC In"), inputs));
 440                         ltc->add_channel (_("LTC In"), DataType::AUDIO, session->engine().make_port_name_non_relative (session->ltc_input_port()->name()));
 441                         program->add_bundle (ltc);
 442                 }
 443         }
 444
 445         /* our control surfaces */
 446
 447         /* XXX assume for now that all control protocols with ports use
 448          * MIDI. If anyone created a control protocol that used audio ports,
 449          * this will break.
 450          */
 451
 452         if ((type == DataType::MIDI || type == DataType::NIL)) {
 453                 ControlProtocolManager& m = ControlProtocolManager::instance ();
 454                 for (list<ControlProtocolInfo*>::iterator i = m.control_protocol_info.begin(); i != m.control_protocol_info.end(); ++i) {
 455                         if ((*i)->protocol) {
 456                                 list<boost::shared_ptr<Bundle> > b = (*i)->protocol->bundles ();
 457                                 for (list<boost::shared_ptr<Bundle> >::iterator j = b.begin(); j != b.end(); ++j) {
 458                                         if ((*j)->ports_are_inputs() == inputs) {
 459                                                 program->add_bundle (*j);
 460                                         }
 461                                 }
 462                         }
 463                 }
 464         }
 465
 466         /* our sync ports */
 467
 468         if ((type == DataType::MIDI || type == DataType::NIL)) {
 469                 boost::shared_ptr<Bundle> sync (new Bundle (_("Sync"), inputs));
 470                 AudioEngine* ae = AudioEngine::instance();
 471
 472                 if (inputs) {
 473                         sync->add_channel (
 474                                 _("MTC in"), DataType::MIDI, ae->make_port_name_non_relative (session->mtc_input_port()->name())
 475                                 );
 476                         sync->add_channel (
 477                                 _("MIDI control in"), DataType::MIDI, ae->make_port_name_non_relative (session->midi_input_port()->name())
 478                                 );
 479                         sync->add_channel (
 480                                 _("MIDI clock in"), DataType::MIDI, ae->make_port_name_non_relative (session->midi_clock_input_port()->name())
 481                                 );
 482                         sync->add_channel (
 483                                 _("MMC in"), DataType::MIDI, ae->make_port_name_non_relative (session->mmc_input_port()->name())
 484                                 );
 485                 } else {
 486                         sync->add_channel (
 487                                 _("MTC out"), DataType::MIDI, ae->make_port_name_non_relative (session->mtc_output_port()->name())
 488                                 );
 489                         sync->add_channel (
 490                                 _("MIDI control out"), DataType::MIDI, ae->make_port_name_non_relative (session->midi_output_port()->name())
 491                                 );
 492                         sync->add_channel (
 493                                 _("MIDI clock out"), DataType::MIDI, ae->make_port_name_non_relative (session->midi_clock_output_port()->name())
 494                                 );
 495                         sync->add_channel (
 496                                 _("MMC out"), DataType::MIDI, ae->make_port_name_non_relative (session->mmc_output_port()->name())
 497                                 );
 498                 }
 499
 500                 program->add_bundle (sync);
 501         }
 502
 503         /* Now find all other ports that we haven't thought of yet */
 504
 505         std::vector<std::string> extra_system[DataType::num_types];
 506         std::vector<std::string> extra_program[DataType::num_types];
 507         std::vector<std::string> extra_other[DataType::num_types];
 508
 509         string lpn (PROGRAM_NAME);
 510         boost::to_lower (lpn);
 511         string lpnc = lpn;
 512         lpnc += ':';
 513
 514         vector<string> ports;
 515         if (type == DataType::NIL) {
 516                 vector<string> p1;
 517                 AudioEngine::instance()->get_ports ("", DataType::AUDIO, inputs ? IsInput : IsOutput, ports);
 518                 AudioEngine::instance()->get_ports ("", DataType::MIDI, inputs ? IsInput : IsOutput, p1);
 519                 for (vector<string>::const_iterator s = p1.begin(); s != p1.end(); ++s) {
 520                         ports.push_back (*s);
 521                 }
 522         } else {
 523                 AudioEngine::instance()->get_ports ("", type, inputs ? IsInput : IsOutput, ports);
 524         }
 525
 526         if (ports.size () > 0) {
 527
 528                 for (vector<string>::const_iterator s = ports.begin(); s != ports.end(); ) {
 529
 530                         std::string const p = *s;
 531
 532                         if (!system->has_port(p) &&
 533                             !bus->has_port(p) &&
 534                             !track->has_port(p) &&
 535                             !program->has_port(p) &&
 536                             !other->has_port(p)) {
 537
 538                                 /* special hack: ignore MIDI ports labelled Midi-Through. these
 539                                    are basically useless and mess things up for default
 540                                    connections.
 541                                 */
 542
 543                                 if (p.find ("Midi-Through") != string::npos) {
 544                                         ++s;
 545                                         continue;
 546                                 }
 547
 548                                 /* special hack: ignore our monitor inputs (which show up here because
 549                                    we excluded them earlier.
 550                                 */
 551
 552                                 string lp = p;
 553                                 boost::to_lower (lp);
 554
 555                                 if ((lp.find (N_(":monitor")) != string::npos) &&
 556                                     (lp.find (lpn) != string::npos)) {
 557                                         ++s;
 558                                         continue;
 559                                 }
 560
 561                                 /* can't use the audio engine for this as we
 562                                  * are looking at ports not owned by the
 563                                  * application, and the audio engine/port
 564                                  * manager doesn't seem them.
 565                                  */
 566
 567                                 PortEngine::PortHandle ph = AudioEngine::instance()->port_engine().get_port_by_name (p);
 568                                 if (ph) {
 569                                         DataType t (AudioEngine::instance()->port_engine().port_data_type (ph));
 570                                         if (t != DataType::NIL) {
 571                                                 if (port_has_prefix (p, N_("system:")) ||
 572                                                     port_has_prefix (p, N_("alsa_pcm:")) ||
 573                                                     port_has_prefix (p, N_("alsa_midi:"))) {
 574                                                         extra_system[t].push_back (p);
 575                                                 } else if (port_has_prefix (p, lpnc)) {
 576                                                         /* Hide scene ports from non-Tracks Live builds */
 577                                                         if (!ARDOUR::Profile->get_trx()) {
 578                                                                 if (p.find (_("Scene ")) != string::npos) {
 579                                                                         ++s;
 580                                                                         continue;
 581                                                                 }
 582                                                         }
 583                                                         extra_program[t].push_back (p);
 584                                                 } else {
 585                                                         extra_other[t].push_back (p);
 586                                                 }
 587                                         }
 588                                 }
 589                         }
 590
 591                         ++s;
 592                 }
 593         }
 594
 595         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
 596                 if (!extra_system[*i].empty()) {
 597                         boost::shared_ptr<Bundle> b = make_bundle_from_ports (extra_system[*i], *i, inputs);
 598                         system->add_bundle (b);
 599                 }
 600         }
 601
 602         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
 603                 if (!extra_program[*i].empty()) {
 604                         /* remove program name prefix from port name and use rest as bundle name */
 605                         std::string bundle_name = extra_program[*i].front().substr (lpnc.length());
 606                         boost::shared_ptr<Bundle> b = make_bundle_from_ports (extra_program[*i], *i, inputs, bundle_name);
 607                         program->add_bundle (b);
 608                 }
 609         }
 610
 611         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
 612                 if (extra_other[*i].empty()) continue;
 613                 std::string cp;
 614                 std::vector<std::string> nb;
 615                 for (uint32_t j = 0; j < extra_other[*i].size(); ++j) {
 616                         std::string nn = extra_other[*i][j];
 617                         std::string pf = nn.substr (0, nn.find_first_of (":") + 1);
 618                         if (pf != cp && !nb.empty()) {
 619                                 boost::shared_ptr<Bundle> b = make_bundle_from_ports (nb, *i, inputs);
 620                                 other->add_bundle (b);
 621                                 nb.clear();
 622                         }
 623                         cp = pf;
 624                         nb.push_back(extra_other[*i][j]);
 625                 }
 626                 if (!nb.empty()) {
 627                         boost::shared_ptr<Bundle> b = make_bundle_from_ports (nb, *i, inputs);
 628                         other->add_bundle (b);
 629                 }
 630         }
 631
 632         if (!allow_dups) {
 633                 system->remove_duplicates ();
 634         }
 635
 636         add_group_if_not_empty (other);
 637         add_group_if_not_empty (bus);
 638         add_group_if_not_empty (track);
 639         add_group_if_not_empty (program);
 640         add_group_if_not_empty (system);
 641
 642         emit_changed ();
 643 }
 644
 645 boost::shared_ptr<Bundle>
 646 PortGroupList::make_bundle_from_ports (std::vector<std::string> const & p, ARDOUR::DataType type, bool inputs, std::string const& bundle_name) const
 647 {
 648         boost::shared_ptr<Bundle> b (new Bundle ("", inputs));
 649         std::string const pre = common_prefix (p);
 650
 651         if (!bundle_name.empty()) {
 652                 b->set_name (bundle_name);
 653         } else {
 654                 if (!pre.empty()) {
 655                         b->set_name (pre.substr (0, pre.length() - 1));
 656                 }
 657         }
 658
 659         for (uint32_t j = 0; j < p.size(); ++j) {
 660                 std::string n = p[j].substr (pre.length());
 661                 std::string pn = AudioEngine::instance()->get_pretty_name_by_name (p[j]);
 662                 if (!pn.empty()) {
 663                         n = pn;
 664                 }
 665                 b->add_channel (n, type);
 666                 b->set_port (j, p[j]);
 667         }
 668
 669         return b;
 670 }
 671
 672 bool
 673 PortGroupList::port_has_prefix (const std::string& n, const std::string& p) const
 674 {
 675         return n.substr (0, p.length()) == p;
 676 }
 677
 678 std::string
 679 PortGroupList::common_prefix_before (std::vector<std::string> const & p, std::string const & s) const
 680 {
 681         /* we must have some strings and the first must contain the separator string */
 682         if (p.empty() || p[0].find_first_of (s) == std::string::npos) {
 683                 return "";
 684         }
 685
 686         /* prefix of the first string */
 687         std::string const fp = p[0].substr (0, p[0].find_first_of (s) + 1);
 688
 689         /* see if the other strings also start with fp */
 690         uint32_t j = 1;
 691         while (j < p.size()) {
 692                 if (p[j].substr (0, fp.length()) != fp) {
 693                         break;
 694                 }
 695                 ++j;
 696         }
 697
 698         if (j != p.size()) {
 699                 return "";
 700         }
 701
 702         return fp;
 703 }
 704
 705
 706 std::string
 707 PortGroupList::common_prefix (std::vector<std::string> const & p) const
 708 {
 709         /* common prefix before '/' ? */
 710         std::string cp = common_prefix_before (p, "/");
 711         if (!cp.empty()) {
 712                 return cp;
 713         }
 714
 715         cp = common_prefix_before (p, ":");
 716         if (!cp.empty()) {
 717                 return cp;
 718         }
 719
 720         return "";
 721 }
 722
 723 void
 724 PortGroupList::clear ()
 725 {
 726         _groups.clear ();
 727         _bundle_changed_connections.drop_connections ();
 728         emit_changed ();
 729 }
 730
 731
 732 PortGroup::BundleList const &
 733 PortGroupList::bundles () const
 734 {
 735         _bundles.clear ();
 736
 737         for (PortGroupList::List::const_iterator i = begin (); i != end (); ++i) {
 738                 std::copy ((*i)->bundles().begin(), (*i)->bundles().end(), std::back_inserter (_bundles));
 739         }
 740
 741         return _bundles;
 742 }
 743
 744 ChanCount
 745 PortGroupList::total_channels () const
 746 {
 747         ChanCount n;
 748
 749         for (PortGroupList::List::const_iterator i = begin(); i != end(); ++i) {
 750                 n += (*i)->total_channels ();
 751         }
 752
 753         return n;
 754 }
 755
 756 void
 757 PortGroupList::add_group_if_not_empty (boost::shared_ptr<PortGroup> g)
 758 {
 759         if (!g->bundles().empty ()) {
 760                 add_group (g);
 761         }
 762 }
 763
 764 void
 765 PortGroupList::add_group (boost::shared_ptr<PortGroup> g)
 766 {
 767         _groups.push_back (g);
 768
 769         g->Changed.connect (_changed_connections, invalidator (*this), boost::bind (&PortGroupList::emit_changed, this), gui_context());
 770         g->BundleChanged.connect (_bundle_changed_connections, invalidator (*this), boost::bind (&PortGroupList::emit_bundle_changed, this, _1), gui_context());
 771
 772         emit_changed ();
 773 }
 774
 775 void
 776 PortGroupList::remove_bundle (boost::shared_ptr<Bundle> b)
 777 {
 778         for (List::iterator i = _groups.begin(); i != _groups.end(); ++i) {
 779                 (*i)->remove_bundle (b);
 780         }
 781
 782         emit_changed ();
 783 }
 784
 785 void
 786 PortGroupList::emit_changed ()
 787 {
 788         if (_signals_suspended) {
 789                 _pending_change = true;
 790         } else {
 791                 Changed ();
 792         }
 793 }
 794
 795 void
 796 PortGroupList::emit_bundle_changed (Bundle::Change c)
 797 {
 798         if (_signals_suspended) {
 799                 _pending_bundle_change = c;
 800         } else {
 801                 BundleChanged (c);
 802         }
 803 }
 804 void
 805 PortGroupList::suspend_signals ()
 806 {
 807         _signals_suspended = true;
 808 }
 809
 810 void
 811 PortGroupList::resume_signals ()
 812 {
 813         if (_pending_change) {
 814                 Changed ();
 815                 _pending_change = false;
 816         }
 817
 818         if (_pending_bundle_change != 0) {
 819                 BundleChanged (_pending_bundle_change);
 820                 _pending_bundle_change = (ARDOUR::Bundle::Change) 0;
 821         }
 822
 823         _signals_suspended = false;
 824 }
 825
 826 boost::shared_ptr<IO>
 827 PortGroupList::io_from_bundle (boost::shared_ptr<ARDOUR::Bundle> b) const
 828 {
 829         List::const_iterator i = _groups.begin ();
 830         while (i != _groups.end()) {
 831                 boost::shared_ptr<IO> io = (*i)->io_from_bundle (b);
 832                 if (io) {
 833                         return io;
 834                 }
 835                 ++i;
 836         }
 837
 838         return boost::shared_ptr<IO> ();
 839 }
 840
 841 bool
 842 PortGroupList::empty () const
 843 {
 844         return _groups.empty ();
 845 }