libs/surfaces/osc/osc_select_observer.cc

   1 /*
   2     Copyright (C) 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 "boost/lambda/lambda.hpp"
  21
  22 #include "ardour/session.h"
  23 #include "ardour/track.h"
  24 #include "ardour/monitor_control.h"
  25 #include "ardour/dB.h"
  26 #include "ardour/meter.h"
  27 #include "ardour/phase_control.h"
  28 #include "ardour/solo_isolate_control.h"
  29 #include "ardour/solo_safe_control.h"
  30 #include "ardour/route.h"
  31
  32 #include "osc.h"
  33 #include "osc_select_observer.h"
  34
  35 #include "i18n.h"
  36
  37 using namespace std;
  38 using namespace PBD;
  39 using namespace ARDOUR;
  40 using namespace ArdourSurface;
  41
  42 OSCSelectObserver::OSCSelectObserver (boost::shared_ptr<Stripable> s, lo_address a, uint32_t gm, std::bitset<32> fb)
  43         : _strip (s)
  44         ,gainmode (gm)
  45         ,feedback (fb)
  46         ,nsends (0)
  47 {
  48         addr = lo_address_new (lo_address_get_hostname(a) , lo_address_get_port(a));
  49
  50         if (feedback[0]) { // buttons are separate feedback
  51                 _strip->PropertyChanged.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::name_changed, this, boost::lambda::_1), OSC::instance());
  52                 name_changed (ARDOUR::Properties::name);
  53
  54                 _strip->mute_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/mute"), _strip->mute_control()), OSC::instance());
  55                 change_message ("/select/mute", _strip->mute_control());
  56
  57                 _strip->solo_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/solo"), _strip->solo_control()), OSC::instance());
  58                 change_message ("/select/solo", _strip->solo_control());
  59
  60                 if (_strip->solo_isolate_control()) {
  61                         _strip->solo_isolate_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/solo_iso"), _strip->solo_isolate_control()), OSC::instance());
  62                         change_message ("/select/solo_iso", _strip->solo_isolate_control());
  63                 }
  64
  65                 if (_strip->solo_safe_control()) {
  66                         _strip->solo_safe_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/solo_safe"), _strip->solo_safe_control()), OSC::instance());
  67                         change_message ("/select/solo_safe", _strip->solo_safe_control());
  68                 }
  69
  70                 boost::shared_ptr<Track> track = boost::dynamic_pointer_cast<Track> (_strip);
  71                 if (track) {
  72                         track->monitoring_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::monitor_status, this, track->monitoring_control()), OSC::instance());
  73                         monitor_status (track->monitoring_control());
  74                 }
  75
  76                 boost::shared_ptr<AutomationControl> rec_controllable = _strip->rec_enable_control ();
  77                 if (rec_controllable) {
  78                         rec_controllable->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/recenable"), _strip->rec_enable_control()), OSC::instance());
  79                         change_message ("/select/recenable", _strip->rec_enable_control());
  80                 }
  81
  82                 boost::shared_ptr<AutomationControl> recsafe_controllable = _strip->rec_safe_control ();
  83                 if (recsafe_controllable) {
  84                         recsafe_controllable->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/record_safe"), _strip->rec_safe_control()), OSC::instance());
  85                         change_message ("/select/record_safe", _strip->rec_safe_control());
  86                 }
  87
  88                 boost::shared_ptr<AutomationControl> phase_controllable = _strip->phase_control ();
  89                 if (phase_controllable) {
  90                         phase_controllable->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/polarity"), _strip->phase_control()), OSC::instance());
  91                         change_message ("/select/polarity", _strip->phase_control());
  92                 }
  93
  94         }
  95
  96         if (feedback[1]) { // level controls
  97                 if (gainmode) {
  98                         _strip->gain_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::gain_message, this, X_("/select/fader"), _strip->gain_control()), OSC::instance());
  99                         gain_message ("/select/fader", _strip->gain_control());
 100                 } else {
 101                         _strip->gain_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::gain_message, this, X_("/select/gain"), _strip->gain_control()), OSC::instance());
 102                         gain_message ("/select/gain", _strip->gain_control());
 103                 }
 104
 105                 boost::shared_ptr<Controllable> trim_controllable = boost::dynamic_pointer_cast<Controllable>(_strip->trim_control());
 106                 if (trim_controllable) {
 107                         trim_controllable->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::trim_message, this, X_("/select/trimdB"), _strip->trim_control()), OSC::instance());
 108                         trim_message ("/select/trimdB", _strip->trim_control());
 109                 }
 110
 111                 boost::shared_ptr<Controllable> pan_controllable = boost::dynamic_pointer_cast<Controllable>(_strip->pan_azimuth_control());
 112                 if (pan_controllable) {
 113                         pan_controllable->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/pan_stereo_position"), _strip->pan_azimuth_control()), OSC::instance());
 114                         change_message ("/select/pan_stereo_position", _strip->pan_azimuth_control());
 115                 }
 116
 117                 boost::shared_ptr<Controllable> width_controllable = boost::dynamic_pointer_cast<Controllable>(_strip->pan_width_control());
 118                 if (width_controllable) {
 119                         width_controllable->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/pan_stereo_width"), _strip->pan_width_control()), OSC::instance());
 120                         change_message ("/select/pan_stereo_width", _strip->pan_width_control());
 121                 }
 122
 123                 // detecting processor changes requires cast to route
 124                 boost::shared_ptr<Route> r = boost::dynamic_pointer_cast<Route>(_strip);
 125                 if (r) {
 126                         r->processors_changed.connect  (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::send_restart, this, -1), OSC::instance());
 127                         send_init();
 128                 }
 129
 130         }
 131         if (feedback[13]) { // Well known controls
 132                 // Rest of possible pan controls... Untested because I can't find a way to get them in the GUI :)
 133                 if (_strip->pan_elevation_control ()) {
 134                         _strip->pan_elevation_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/pan_elevation_position"), _strip->pan_elevation_control()), OSC::instance());
 135                         change_message ("/select/pan_elevation_position", _strip->pan_elevation_control());
 136                 }
 137                 if (_strip->pan_frontback_control ()) {
 138                         _strip->pan_frontback_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/pan_frontback_position"), _strip->pan_frontback_control()), OSC::instance());
 139                         change_message ("/select/pan_frontback_position", _strip->pan_frontback_control());
 140                 }
 141                 if (_strip->pan_lfe_control ()) {
 142                         _strip->pan_lfe_control()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/pan_lfe_position"), _strip->pan_lfe_control()), OSC::instance());
 143                         change_message ("/select/pan_lfe_position", _strip->pan_lfe_control());
 144                 }
 145                 // Compressor
 146                 if (_strip->comp_enable_controllable ()) {
 147                         _strip->comp_enable_controllable ()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/comp_enable"), _strip->comp_enable_controllable()), OSC::instance());
 148                         change_message ("/select/comp_enable", _strip->comp_enable_controllable());
 149                 }
 150                 if (_strip->comp_threshold_controllable ()) {
 151                         _strip->comp_threshold_controllable ()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/comp_threshold"), _strip->comp_threshold_controllable()), OSC::instance());
 152                         change_message ("/select/comp_threshold", _strip->comp_threshold_controllable());
 153                 }
 154                 if (_strip->comp_speed_controllable ()) {
 155                         _strip->comp_speed_controllable ()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/comp_speed"), _strip->comp_speed_controllable()), OSC::instance());
 156                         change_message ("/select/comp_speed", _strip->comp_speed_controllable());
 157                 }
 158                 if (_strip->comp_mode_controllable ()) {
 159                         _strip->comp_mode_controllable ()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/comp_mode"), _strip->comp_mode_controllable()), OSC::instance());
 160                         change_message ("/select/comp_mode", _strip->comp_mode_controllable());
 161                         text_message ("/select/comp_mode_name", _strip->comp_mode_name(_strip->comp_mode_controllable()->get_value()));
 162                         text_message ("/select/comp_speed_name", _strip->comp_speed_name(_strip->comp_mode_controllable()->get_value()));
 163                 }
 164                 if (_strip->comp_makeup_controllable ()) {
 165                         _strip->comp_makeup_controllable ()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/comp_makeup"), _strip->comp_makeup_controllable()), OSC::instance());
 166                         change_message ("/select/comp_makeup", _strip->comp_makeup_controllable());
 167                 }
 168                 if (_strip->comp_redux_controllable ()) {
 169                         _strip->comp_redux_controllable ()->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::change_message, this, X_("/select/comp_redux"), _strip->comp_redux_controllable()), OSC::instance());
 170                         change_message ("/select/comp_redux", _strip->comp_redux_controllable());
 171                 }
 172
 173         }
 174
 175         tick();
 176 }
 177
 178 OSCSelectObserver::~OSCSelectObserver ()
 179 {
 180
 181         strip_connections.drop_connections ();
 182         // all strip buttons should be off and faders 0 and etc.
 183         clear_strip ("/select/expand", 0);
 184         if (feedback[0]) { // buttons are separate feedback
 185                 lo_message msg = lo_message_new ();
 186                 // name is a string do it first
 187                 lo_message_add_string (msg, " ");
 188                 lo_send_message (addr, "/select/name", msg);
 189                 lo_message_free (msg);
 190                 msg = lo_message_new ();
 191                 lo_message_add_string (msg, " ");
 192                 lo_send_message (addr, "/select/comment", msg);
 193                 lo_message_free (msg);
 194                 clear_strip ("/select/mute", 0);
 195                 clear_strip ("/select/solo", 0);
 196                 clear_strip ("/select/recenable", 0);
 197                 clear_strip ("/select/record_safe", 0);
 198                 clear_strip ("/select/monitor_input", 0);
 199                 clear_strip ("/select/monitor_disk", 0);
 200                 clear_strip ("/select/polarity", 0);
 201                 clear_strip ("/select/n_inputs", 0);
 202                 clear_strip ("/select/n_outputs", 0);
 203         }
 204         if (feedback[1]) { // level controls
 205                 if (gainmode) {
 206                         clear_strip ("/select/fader", 0);
 207                 } else {
 208                         clear_strip ("/select/gain", -193);
 209                 }
 210                 clear_strip ("/select/trimdB", 0);
 211                 clear_strip ("/select/pan_stereo_position", 0.5);
 212                 clear_strip ("/select/pan_stereo_width", 1);
 213         }
 214         if (feedback[9]) {
 215                 clear_strip ("/select/signal", 0);
 216         }
 217         if (feedback[7]) {
 218                 if (gainmode) {
 219                         clear_strip ("/select/meter", 0);
 220                 } else {
 221                         clear_strip ("/select/meter", -193);
 222                 }
 223         }else if (feedback[8]) {
 224                 clear_strip ("/select/meter", 0);
 225         }
 226         send_end();
 227
 228         lo_address_free (addr);
 229 }
 230
 231 void
 232 OSCSelectObserver::send_init()
 233 {
 234         // we don't know how many there are, so find out.
 235         bool sends;
 236         do {
 237                 sends = false;
 238                 if (_strip->send_level_controllable (nsends)) {
 239                         _strip->send_level_controllable(nsends)->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::send_gain, this, nsends, _strip->send_level_controllable(nsends)), OSC::instance());
 240                         send_gain (nsends, _strip->send_level_controllable(nsends));
 241                         sends = true;
 242                 }
 243
 244                 if (_strip->send_enable_controllable (nsends)) {
 245                         _strip->send_enable_controllable(nsends)->Changed.connect (strip_connections, MISSING_INVALIDATOR, boost::bind (&OSCSelectObserver::send_enable, this, X_("/select/send_enable"), nsends, _strip->send_enable_controllable(nsends)), OSC::instance());
 246                         send_enable ("/select/send_enable", nsends, _strip->send_enable_controllable(nsends));
 247                         sends = true;
 248                 } else if (sends) {
 249                         // not used by Ardour, just mixbus so in Ardour always true
 250                         lo_message msg = lo_message_new ();
 251                         path = "/select/send_enable";
 252                         if (feedback[2]) {
 253                                 path = set_path (path, nsends + 1);
 254                         } else {
 255                                 lo_message_add_int32 (msg, nsends + 1);
 256                         }
 257                         lo_message_add_int32 (msg, 1);
 258                         lo_send_message (addr, path.c_str(), msg);
 259                         lo_message_free (msg);
 260                 }
 261                 // this should get signalled by the route the send goes to, (TODO)
 262                 if (sends) { // if the gain control is there, this is too
 263                         send_name ("/select/send_name", nsends, _strip->send_name(nsends));
 264                 }
 265                 // Send numbers are 0 based, OSC is 1 based so this gets incremented at the end
 266                 if (sends) {
 267                         nsends++;
 268                 }
 269         } while (sends);
 270 }
 271
 272 void
 273 OSCSelectObserver::send_end ()
 274 {
 275         send_connections.drop_connections ();
 276         for (uint32_t i = 1; i <= nsends; i++) {
 277                 lo_message msg = lo_message_new ();
 278                 string path = "/select/send_gain";
 279                 if (feedback[2]) {
 280                         path = set_path (path, i);
 281                 } else {
 282                         lo_message_add_int32 (msg, i);
 283                 }
 284
 285                 if (gainmode) {
 286                         lo_message_add_int32 (msg, 0);
 287                 } else {
 288                         lo_message_add_float (msg, -193);
 289                 }
 290                 lo_send_message (addr, path.c_str(), msg);
 291                 lo_message_free (msg);
 292                 // next enable
 293                 msg = lo_message_new ();
 294                 path = "/select/send_enable";
 295                 if (feedback[2]) {
 296                         path = set_path (path, i);
 297                 } else {
 298                         lo_message_add_int32 (msg, i);
 299                 }
 300                 lo_message_add_int32 (msg, 0);
 301                 lo_send_message (addr, path.c_str(), msg);
 302                 lo_message_free (msg);
 303                 // next name
 304                 msg = lo_message_new ();
 305                 path = "/select/send_name";
 306                 if (feedback[2]) {
 307                         path = set_path (path, i);
 308                 } else {
 309                         lo_message_add_int32 (msg, i);
 310                 }
 311                 lo_message_add_string (msg, " ");
 312                 lo_send_message (addr, path.c_str(), msg);
 313                 lo_message_free (msg);
 314         }
 315         nsends = 0;
 316 }
 317
 318 void
 319 OSCSelectObserver::send_restart(int x)
 320 {
 321         send_end();
 322         send_init();
 323 }
 324
 325 void
 326 OSCSelectObserver::tick ()
 327 {
 328         if (feedback[7] || feedback[8] || feedback[9]) { // meters enabled
 329                 float now_meter;
 330                 if (_strip->peak_meter()) {
 331                         now_meter = _strip->peak_meter()->meter_level(0, MeterMCP);
 332                 } else {
 333                         now_meter = -193;
 334                 }
 335                 if (now_meter < -193) now_meter = -193;
 336                 if (_last_meter != now_meter) {
 337                         if (feedback[7] || feedback[8]) {
 338                                 string path = "/select/meter";
 339                                 lo_message msg = lo_message_new ();
 340                                 if (gainmode && feedback[7]) {
 341                                         uint32_t lev1023 = (uint32_t)((now_meter + 54) * 17.05);
 342                                         lo_message_add_int32 (msg, lev1023);
 343                                         lo_send_message (addr, path.c_str(), msg);
 344                                 } else if ((!gainmode) && feedback[7]) {
 345                                         lo_message_add_float (msg, now_meter);
 346                                         lo_send_message (addr, path.c_str(), msg);
 347                                 } else if (feedback[8]) {
 348                                         uint32_t ledlvl = (uint32_t)(((now_meter + 54) / 3.75)-1);
 349                                         uint16_t ledbits = ~(0xfff<<ledlvl);
 350                                         lo_message_add_int32 (msg, ledbits);
 351                                         lo_send_message (addr, path.c_str(), msg);
 352                                 }
 353                                 lo_message_free (msg);
 354                         }
 355                         if (feedback[9]) {
 356                                 string path = "/select/signal";
 357                                 lo_message msg = lo_message_new ();
 358                                 float signal;
 359                                 if (now_meter < -40) {
 360                                         signal = 0;
 361                                 } else {
 362                                         signal = 1;
 363                                 }
 364                                 lo_message_add_float (msg, signal);
 365                                 lo_send_message (addr, path.c_str(), msg);
 366                                 lo_message_free (msg);
 367                         }
 368                 }
 369                 _last_meter = now_meter;
 370
 371         }
 372
 373 }
 374
 375 void
 376 OSCSelectObserver::name_changed (const PBD::PropertyChange& what_changed)
 377 {
 378         if (!what_changed.contains (ARDOUR::Properties::name)) {
 379             return;
 380         }
 381
 382         if (!_strip) {
 383                 return;
 384         }
 385
 386         lo_message msg = lo_message_new ();
 387
 388         string path = "/select/name";
 389         lo_message_add_string (msg, _strip->name().c_str());
 390
 391         lo_send_message (addr, path.c_str(), msg);
 392         lo_message_free (msg);
 393
 394         boost::shared_ptr<Route> route = boost::dynamic_pointer_cast<Route> (_strip);
 395         if (route) {
 396                 //spit out the comment at the same time
 397                 msg = lo_message_new ();
 398                 path = "/select/comment";
 399                 lo_message_add_string (msg, route->comment().c_str());
 400                 lo_send_message (addr, path.c_str(), msg);
 401                 lo_message_free (msg);
 402
 403                 // lets tell the surface how many inputs this strip has
 404                 msg = lo_message_new ();
 405                 path = "/select/n_inputs";
 406                 lo_message_add_int32 (msg, route->n_inputs().n_total());
 407                 lo_send_message (addr, path.c_str(), msg);
 408                 lo_message_free (msg);
 409                 // lets tell the surface how many outputs this strip has
 410                 msg = lo_message_new ();
 411                 path = "/select/n_outputs";
 412                 lo_message_add_int32 (msg, route->n_outputs().n_total());
 413                 lo_send_message (addr, path.c_str(), msg);
 414                 lo_message_free (msg);
 415         }
 416
 417 }
 418
 419 void
 420 OSCSelectObserver::change_message (string path, boost::shared_ptr<Controllable> controllable)
 421 {
 422         lo_message msg = lo_message_new ();
 423
 424         lo_message_add_float (msg, (float) controllable->get_value());
 425
 426         lo_send_message (addr, path.c_str(), msg);
 427         lo_message_free (msg);
 428 }
 429
 430 void
 431 OSCSelectObserver::text_message (string path, std::string text)
 432 {
 433         lo_message msg = lo_message_new ();
 434
 435         lo_message_add_string (msg, text.c_str());
 436
 437         lo_send_message (addr, path.c_str(), msg);
 438         lo_message_free (msg);
 439 }
 440
 441 void
 442 OSCSelectObserver::monitor_status (boost::shared_ptr<Controllable> controllable)
 443 {
 444         int disk, input;
 445         float val = controllable->get_value();
 446         switch ((int) val) {
 447                 case 1:
 448                         disk = 0;
 449                         input = 1;
 450                         break;
 451                 case 2:
 452                         disk = 1;
 453                         input = 0;
 454                         break;
 455                 default:
 456                         disk = 0;
 457                         input = 0;
 458         }
 459
 460         lo_message msg = lo_message_new ();
 461         string path = "/select/monitor_input";
 462         lo_message_add_int32 (msg, (float) input);
 463         lo_send_message (addr, path.c_str(), msg);
 464         lo_message_free (msg);
 465
 466         msg = lo_message_new ();
 467         path = "/select/monitor_disk";
 468         lo_message_add_int32 (msg, (float) disk);
 469         lo_send_message (addr, path.c_str(), msg);
 470         lo_message_free (msg);
 471
 472 }
 473
 474 void
 475 OSCSelectObserver::trim_message (string path, boost::shared_ptr<Controllable> controllable)
 476 {
 477         lo_message msg = lo_message_new ();
 478
 479         lo_message_add_float (msg, (float) accurate_coefficient_to_dB (controllable->get_value()));
 480
 481         lo_send_message (addr, path.c_str(), msg);
 482         lo_message_free (msg);
 483 }
 484
 485 void
 486 OSCSelectObserver::gain_message (string path, boost::shared_ptr<Controllable> controllable)
 487 {
 488         lo_message msg = lo_message_new ();
 489
 490         if (gainmode) {
 491                 if (controllable->get_value() == 1) {
 492                         lo_message_add_int32 (msg, 800);
 493                 } else {
 494                         lo_message_add_int32 (msg, gain_to_slider_position (controllable->get_value()) * 1023);
 495                 }
 496         } else {
 497                 if (controllable->get_value() < 1e-15) {
 498                         lo_message_add_float (msg, -200);
 499                 } else {
 500                         lo_message_add_float (msg, accurate_coefficient_to_dB (controllable->get_value()));
 501                 }
 502         }
 503
 504         lo_send_message (addr, path.c_str(), msg);
 505         lo_message_free (msg);
 506 }
 507
 508 void
 509 OSCSelectObserver::send_gain (uint32_t id, boost::shared_ptr<PBD::Controllable> controllable)
 510 {
 511         lo_message msg = lo_message_new ();
 512         string path;
 513         float value;
 514
 515         if (gainmode) {
 516                 path = "/select/send_fader";
 517                 if (controllable->get_value() == 1) {
 518                         value = 800;
 519                 } else {
 520                         value = gain_to_slider_position (controllable->get_value());
 521                 }
 522         } else {
 523                 path = "/select/send_gain";
 524                 if (controllable->get_value() < 1e-15) {
 525                         value = -193;
 526                 } else {
 527                         value = accurate_coefficient_to_dB (controllable->get_value());
 528                 }
 529         }
 530
 531         if (feedback[2]) {
 532                 path = set_path (path, id + 1);
 533         } else {
 534                 lo_message_add_int32 (msg, id + 1);
 535         }
 536
 537         lo_message_add_float (msg, value);
 538         lo_send_message (addr, path.c_str(), msg);
 539         lo_message_free (msg);
 540 }
 541
 542 void
 543 OSCSelectObserver::send_enable (string path, uint32_t id, boost::shared_ptr<Controllable> controllable)
 544 {
 545         lo_message msg = lo_message_new ();
 546         if (feedback[2]) {
 547                 path = set_path (path, id + 1);
 548         } else {
 549                 lo_message_add_int32 (msg, id + 1);
 550         }
 551
 552         lo_message_add_float (msg, (float) controllable->get_value());
 553
 554         lo_send_message (addr, path.c_str(), msg);
 555         lo_message_free (msg);
 556 }
 557
 558 void
 559 OSCSelectObserver::send_name (string path, uint32_t id, string name)
 560 {
 561         lo_message msg = lo_message_new ();
 562         if (feedback[2]) {
 563                 path = set_path (path, id + 1);
 564         } else {
 565                 lo_message_add_int32 (msg, id + 1);
 566         }
 567
 568         lo_message_add_string (msg, name.c_str());
 569
 570         lo_send_message (addr, path.c_str(), msg);
 571         lo_message_free (msg);
 572 }
 573
 574 string
 575 OSCSelectObserver::set_path (string path, uint32_t id)
 576 {
 577         if (feedback[2]) {
 578   ostringstream os;
 579   os << path << "/" << id;
 580   path = os.str();
 581         }
 582         return path;
 583 }
 584
 585 void
 586 OSCSelectObserver::clear_strip (string path, float val)
 587 {
 588         lo_message msg = lo_message_new ();
 589         lo_message_add_float (msg, val);
 590
 591         lo_send_message (addr, path.c_str(), msg);
 592         lo_message_free (msg);
 593
 594 }
 595