gtk2_ardour/route_params_ui.cc

   1 /*
   2     Copyright (C) 2000 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     $Id$
  19 */
  20
  21 #include <algorithm>
  22
  23 #include <glibmm/thread.h>
  24 #include <gtkmm2ext/utils.h>
  25 #include <gtkmm2ext/stop_signal.h>
  26
  27 #include <ardour/session.h>
  28 #include <ardour/session_route.h>
  29 #include <ardour/audio_diskstream.h>
  30 #include <ardour/plugin.h>
  31 #include <ardour/plugin_manager.h>
  32 #include <ardour/ardour.h>
  33 #include <ardour/session.h>
  34 #include <ardour/route.h>
  35 #include <ardour/audio_track.h>
  36 #include <ardour/send.h>
  37 #include <ardour/insert.h>
  38 #include <ardour/connection.h>
  39 #include <ardour/session_connection.h>
  40
  41 #include "route_params_ui.h"
  42 #include "keyboard.h"
  43 #include "mixer_strip.h"
  44 #include "plugin_selector.h"
  45 #include "ardour_ui.h"
  46 #include "plugin_ui.h"
  47 #include "io_selector.h"
  48 #include "send_ui.h"
  49 #include "utils.h"
  50 #include "gui_thread.h"
  51
  52 #include "i18n.h"
  53
  54 using namespace ARDOUR;
  55 using namespace PBD;
  56 using namespace Gtk;
  57 using namespace sigc;
  58
  59 RouteParams_UI::RouteParams_UI (AudioEngine& eng)
  60         : ArdourDialog ("track/bus inspector"),
  61           engine (eng),
  62           track_menu(0)
  63 {
  64         pre_redirect_box = 0;
  65         post_redirect_box = 0;
  66         _input_iosel = 0;
  67         _output_iosel = 0;
  68         _active_pre_view = 0;
  69         _active_post_view = 0;
  70
  71         using namespace Notebook_Helpers;
  72
  73         input_frame.set_shadow_type(Gtk::SHADOW_NONE);
  74         output_frame.set_shadow_type(Gtk::SHADOW_NONE);
  75
  76         notebook.set_show_tabs (true);
  77         notebook.set_show_border (true);
  78         notebook.set_name ("RouteParamNotebook");
  79
  80         // create the tree model
  81         route_display_model = ListStore::create(route_display_columns);
  82
  83         // setup the treeview
  84         route_display.set_model(route_display_model);
  85         route_display.append_column(_("Tracks/Buses"), route_display_columns.text);
  86         route_display.set_name(X_("RouteParamsListDisplay"));
  87         route_display.get_selection()->set_mode(Gtk::SELECTION_SINGLE); // default
  88         route_display.set_reorderable(false);
  89         route_display.set_size_request(75, -1);
  90         route_display.set_headers_visible(true);
  91         route_display.set_headers_clickable(true);
  92
  93         route_select_scroller.add(route_display);
  94         route_select_scroller.set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
  95
  96
  97         route_select_frame.set_name("RouteSelectBaseFrame");
  98         route_select_frame.set_shadow_type (Gtk::SHADOW_IN);
  99         route_select_frame.add(route_select_scroller);
 100
 101         list_vpacker.pack_start (route_select_frame, true, true);
 102
 103         notebook.pages().push_back (TabElem (input_frame, _("Inputs")));
 104         notebook.pages().push_back (TabElem (output_frame, _("Outputs")));
 105         notebook.pages().push_back (TabElem (pre_redir_hpane, _("Pre-fader Redirects")));
 106         notebook.pages().push_back (TabElem (post_redir_hpane, _("Post-fader Redirects")));
 107
 108         notebook.set_name ("InspectorNotebook");
 109
 110         title_label.set_name ("RouteParamsTitleLabel");
 111         update_title();
 112
 113         // changeable area
 114         route_param_frame.set_name("RouteParamsBaseFrame");
 115         route_param_frame.set_shadow_type (Gtk::SHADOW_IN);
 116
 117
 118         route_hpacker.pack_start (notebook, true, true);
 119
 120
 121         route_vpacker.pack_start (title_label, false, false);
 122         route_vpacker.pack_start (route_hpacker, true, true);
 123
 124
 125         list_hpane.pack1 (list_vpacker);
 126         list_hpane.add2 (route_vpacker);
 127
 128         list_hpane.set_position(110);
 129
 130         pre_redir_hpane.set_position(110);
 131         post_redir_hpane.set_position(110);
 132
 133         //global_vpacker.pack_start (list_hpane, true, true);
 134         //get_vbox()->pack_start (global_vpacker);
 135         get_vbox()->pack_start (list_hpane);
 136
 137
 138         set_name ("RouteParamsWindow");
 139         set_default_size (620,370);
 140         set_title (_("ardour: track/bus inspector"));
 141         set_wmclass (_("ardour_route_parameters"), "Ardour");
 142
 143         // events
 144         route_display.get_selection()->signal_changed().connect(mem_fun(*this, &RouteParams_UI::route_selected));
 145         route_display.get_column(0)->signal_clicked().connect(mem_fun(*this, &RouteParams_UI::show_track_menu));
 146
 147         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK|Gdk::BUTTON_RELEASE_MASK);
 148
 149         _plugin_selector = new PluginSelector (PluginManager::the_manager());
 150         _plugin_selector->signal_delete_event().connect (bind (ptr_fun (just_hide_it),
 151                                                      static_cast<Window *> (_plugin_selector)));
 152
 153
 154         signal_delete_event().connect(bind(ptr_fun(just_hide_it), static_cast<Gtk::Window *>(this)));
 155 }
 156
 157 RouteParams_UI::~RouteParams_UI ()
 158 {
 159 }
 160
 161 void
 162 RouteParams_UI::add_route (boost::shared_ptr<Route> route)
 163 {
 164         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::add_route), route));
 165
 166         if (route->hidden()) {
 167                 return;
 168         }
 169
 170         TreeModel::Row row = *(route_display_model->append());
 171         row[route_display_columns.text] = route->name();
 172         row[route_display_columns.route] = route;
 173
 174         //route_select_list.rows().back().select ();
 175
 176         route->name_changed.connect (bind (mem_fun(*this, &RouteParams_UI::route_name_changed), route));
 177         route->GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::route_removed), route));
 178 }
 179
 180
 181 void
 182 RouteParams_UI::route_name_changed (void *src, boost::shared_ptr<Route> route)
 183 {
 184         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::route_name_changed), src, route));
 185
 186         bool found = false ;
 187         TreeModel::Children rows = route_display_model->children();
 188         for(TreeModel::Children::iterator iter = rows.begin(); iter != rows.end(); ++iter) {
 189                 boost::shared_ptr<Route> r =(*iter)[route_display_columns.route];
 190                 if (r == route) {
 191                         (*iter)[route_display_columns.text] = route->name() ;
 192                         found = true ;
 193                         break;
 194                 }
 195         }
 196
 197         if(!found) {
 198                 error << _("route display list item for renamed route not found!") << endmsg;
 199         }
 200
 201         if (route == _route) {
 202                 track_input_label.set_text (route->name());
 203                 update_title();
 204         }
 205 }
 206
 207 void
 208 RouteParams_UI::setup_redirect_boxes()
 209 {
 210         if (session && _route) {
 211
 212                 // just in case... shouldn't need this
 213                 cleanup_redirect_boxes();
 214
 215                 // construct new redirect boxes
 216                 pre_redirect_box = new RedirectBox(PreFader, *session, _route, *_plugin_selector, _rr_selection);
 217                 post_redirect_box = new RedirectBox(PostFader, *session, _route, *_plugin_selector, _rr_selection);
 218
 219                 pre_redir_hpane.pack1 (*pre_redirect_box);
 220                 post_redir_hpane.pack1 (*post_redirect_box);
 221
 222                 pre_redirect_box->RedirectSelected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PreFader));
 223                 pre_redirect_box->RedirectUnselected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PreFader));
 224                 post_redirect_box->RedirectSelected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PostFader));
 225                 post_redirect_box->RedirectUnselected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PostFader));
 226
 227                 pre_redir_hpane.show_all();
 228                 post_redir_hpane.show_all();
 229         }
 230
 231 }
 232
 233 void
 234 RouteParams_UI::cleanup_redirect_boxes()
 235 {
 236         if (pre_redirect_box) {
 237                 pre_redir_hpane.remove(*pre_redirect_box);
 238                 delete pre_redirect_box;
 239                 pre_redirect_box = 0;
 240         }
 241
 242         if (post_redirect_box) {
 243                 post_redir_hpane.remove(*post_redirect_box);
 244                 delete post_redirect_box;
 245                 post_redirect_box = 0;
 246         }
 247 }
 248
 249 void
 250 RouteParams_UI::setup_io_frames()
 251 {
 252         cleanup_io_frames();
 253
 254         // input
 255         _input_iosel = new IOSelector (*session, _route, true);
 256         _input_iosel->redisplay ();
 257         input_frame.add (*_input_iosel);
 258         input_frame.show_all();
 259
 260         // output
 261         _output_iosel = new IOSelector (*session, _route, false);
 262         _output_iosel->redisplay ();
 263         output_frame.add (*_output_iosel);
 264         output_frame.show_all();
 265 }
 266
 267 void
 268 RouteParams_UI::cleanup_io_frames()
 269 {
 270         if (_input_iosel) {
 271                 _input_iosel->Finished (IOSelector::Cancelled);
 272                 input_frame.remove();
 273                 delete _input_iosel;
 274                 _input_iosel = 0;
 275         }
 276
 277         if (_output_iosel) {
 278                 _output_iosel->Finished (IOSelector::Cancelled);
 279
 280                 output_frame.remove();
 281                 delete _output_iosel;
 282                 _output_iosel = 0;
 283         }
 284 }
 285
 286 void
 287 RouteParams_UI::cleanup_pre_view (bool stopupdate)
 288 {
 289         if (_active_pre_view) {
 290                 LadspaPluginUI *   plugui = 0;
 291
 292                 if (stopupdate && (plugui = dynamic_cast<LadspaPluginUI*>(_active_pre_view)) != 0) {
 293                           plugui->stop_updating (0);
 294                 }
 295
 296                 _pre_plugin_conn.disconnect();
 297                 pre_redir_hpane.remove(*_active_pre_view);
 298                 delete _active_pre_view;
 299                 _active_pre_view = 0;
 300         }
 301 }
 302
 303 void
 304 RouteParams_UI::cleanup_post_view (bool stopupdate)
 305 {
 306         if (_active_post_view) {
 307                 LadspaPluginUI *   plugui = 0;
 308
 309                 if (stopupdate && (plugui = dynamic_cast<LadspaPluginUI*>(_active_post_view)) != 0) {
 310                           plugui->stop_updating (0);
 311                 }
 312                 _post_plugin_conn.disconnect();
 313                 post_redir_hpane.remove(*_active_post_view);
 314                 delete _active_post_view;
 315                 _active_post_view = 0;
 316         }
 317 }
 318
 319
 320 void
 321 RouteParams_UI::route_removed (boost::shared_ptr<Route> route)
 322 {
 323         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::route_removed), route));
 324
 325         TreeModel::Children rows = route_display_model->children();
 326         TreeModel::Children::iterator ri;
 327
 328         for(TreeModel::Children::iterator iter = rows.begin(); iter != rows.end(); ++iter) {
 329                 boost::shared_ptr<Route> r =(*iter)[route_display_columns.route];
 330
 331                 if (r == route) {
 332                         route_display_model->erase(iter);
 333                         break;
 334                 }
 335         }
 336
 337         if (route == _route) {
 338                 cleanup_io_frames();
 339                 cleanup_pre_view();
 340                 cleanup_post_view();
 341                 cleanup_redirect_boxes();
 342
 343                 _route.reset ((Route*) 0);
 344                 _pre_redirect.reset ((Redirect*) 0);
 345                 _post_redirect.reset ((Redirect*) 0);
 346                 update_title();
 347         }
 348 }
 349
 350 void
 351 RouteParams_UI::set_session (Session *sess)
 352 {
 353         ArdourDialog::set_session (sess);
 354
 355         route_display_model->clear();
 356
 357         if (session) {
 358                 session->foreach_route (this, &RouteParams_UI::add_route);
 359                 session->going_away.connect (mem_fun(*this, &ArdourDialog::session_gone));
 360                 session->RouteAdded.connect (mem_fun(*this, &RouteParams_UI::add_route));
 361                 start_updating ();
 362         } else {
 363                 stop_updating ();
 364         }
 365
 366         //route_select_list.thaw ();
 367
 368         _plugin_selector->set_session (session);
 369 }
 370
 371
 372 void
 373 RouteParams_UI::session_gone ()
 374 {
 375         ENSURE_GUI_THREAD(mem_fun(*this, &RouteParams_UI::session_gone));
 376
 377         route_display_model->clear();
 378
 379         cleanup_io_frames();
 380         cleanup_pre_view();
 381         cleanup_post_view();
 382         cleanup_redirect_boxes();
 383
 384         _route.reset ((Route*) 0);
 385         _pre_redirect.reset ((Redirect*) 0);
 386         _post_redirect.reset ((Redirect*) 0);
 387         update_title();
 388
 389         ArdourDialog::session_gone();
 390
 391 }
 392
 393 void
 394 RouteParams_UI::route_selected()
 395 {
 396         Glib::RefPtr<TreeSelection> selection = route_display.get_selection();
 397         TreeModel::iterator iter = selection->get_selected(); // only used with Gtk::SELECTION_SINGLE
 398         if(iter) {
 399                 //If anything is selected
 400                 boost::shared_ptr<Route> route = (*iter)[route_display_columns.route] ;
 401
 402                 if (_route == route) {
 403                         // do nothing
 404                         return;
 405                 }
 406
 407                 // remove event binding from previously selected
 408                 if (_route) {
 409                         _route_conn.disconnect();
 410                         _route_ds_conn.disconnect();
 411                         cleanup_redirect_boxes();
 412                         cleanup_pre_view();
 413                         cleanup_post_view();
 414                         cleanup_io_frames();
 415                 }
 416
 417                 // update the other panes with the correct info
 418                 _route = route;
 419                 //update_routeinfo (route);
 420
 421                 setup_io_frames();
 422                 setup_redirect_boxes();
 423
 424                 // bind to redirects changed event for this route
 425                 _route_conn = route->redirects_changed.connect (mem_fun(*this, &RouteParams_UI::redirects_changed));
 426
 427                 track_input_label.set_text (_route->name());
 428
 429                 update_title();
 430         } else {
 431                 // no selection
 432                 if (_route) {
 433                         _route_conn.disconnect();
 434
 435                         // remove from view
 436                         cleanup_io_frames();
 437                         cleanup_pre_view();
 438                         cleanup_post_view();
 439                         cleanup_redirect_boxes();
 440
 441                         _route.reset ((Route*) 0);
 442                         _pre_redirect.reset ((Redirect*) 0);
 443                         _post_redirect.reset ((Redirect *) 0);
 444                         track_input_label.set_text(_("NO TRACK"));
 445                         update_title();
 446                 }
 447         }
 448 }
 449
 450 //void
 451 //RouteParams_UI::route_unselected (gint row, gint col, GdkEvent *ev)
 452 //{
 453 //      if (_route) {
 454 //              _route_conn.disconnect();
 455
 456                 // remove from view
 457 //              cleanup_io_frames();
 458 //              cleanup_pre_view();
 459 //              cleanup_post_view();
 460 //              cleanup_redirect_boxes();
 461
 462 //              _route.reset ((Route*)0);
 463 //              _pre_redirect = 0;
 464 //              _post_redirect = 0;
 465 //              track_input_label.set_text(_("NO TRACK"));
 466 //              update_title();
 467 //      }
 468 //}
 469
 470 void
 471 RouteParams_UI::redirects_changed (void *src)
 472
 473 {
 474         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::redirects_changed), src));
 475
 476 //      pre_redirect_list.freeze ();
 477 //      pre_redirect_list.clear ();
 478 //      post_redirect_list.freeze ();
 479 //      post_redirect_list.clear ();
 480 //      if (_route) {
 481 //              _route->foreach_redirect (this, &RouteParams_UI::add_redirect_to_display);
 482 //      }
 483 //      pre_redirect_list.thaw ();
 484 //      post_redirect_list.thaw ();
 485
 486         cleanup_pre_view();
 487         cleanup_post_view();
 488
 489         _pre_redirect.reset ((Redirect*) 0);
 490         _post_redirect.reset ((Redirect*) 0);
 491         //update_title();
 492 }
 493
 494
 495
 496 void
 497 RouteParams_UI::show_track_menu()
 498 {
 499         using namespace Menu_Helpers;
 500
 501         if (track_menu == 0) {
 502                 track_menu = new Menu;
 503                 track_menu->set_name ("ArdourContextMenu");
 504                 track_menu->items().push_back
 505                                 (MenuElem (_("Add Track/Bus"),
 506                                            mem_fun (*(ARDOUR_UI::instance()), &ARDOUR_UI::add_route)));
 507         }
 508         track_menu->popup (1, 0);
 509 }
 510
 511
 512
 513 void
 514 RouteParams_UI::redirect_selected (boost::shared_ptr<ARDOUR::Redirect> redirect, ARDOUR::Placement place)
 515 {
 516         boost::shared_ptr<Insert> insert;
 517
 518         if ((place == PreFader && _pre_redirect == redirect)
 519             || (place == PostFader && _post_redirect == redirect)){
 520                 return;
 521         }
 522
 523         if ((insert = boost::dynamic_pointer_cast<Insert> (redirect)) == 0) {
 524
 525                 boost::shared_ptr<Send> send;
 526
 527                 if ((send = boost::dynamic_pointer_cast<Send> (redirect)) != 0) {
 528
 529                         /* its a send */
 530
 531                         SendUI *send_ui = new SendUI (send, *session);
 532
 533                         if (place == PreFader) {
 534                                 cleanup_pre_view();
 535                                 _pre_plugin_conn = send->GoingAway.connect (mem_fun(*this, &RouteParams_UI::redirect_going_away));
 536                                 _active_pre_view = send_ui;
 537
 538                                 pre_redir_hpane.add2 (*_active_pre_view);
 539                                 pre_redir_hpane.show_all();
 540                         }
 541                         else {
 542                                 cleanup_post_view();
 543                                 _post_plugin_conn = send->GoingAway.connect (mem_fun(*this, &RouteParams_UI::redirect_going_away));
 544                                 _active_post_view = send_ui;
 545
 546                                 post_redir_hpane.add2 (*_active_post_view);
 547                                 post_redir_hpane.show_all();
 548                         }
 549                 }
 550
 551         } else {
 552                 /* its an insert, though we don't know what kind yet. */
 553
 554                 boost::shared_ptr<PluginInsert> plugin_insert;
 555                 boost::shared_ptr<PortInsert> port_insert;
 556
 557                 if ((plugin_insert = boost::dynamic_pointer_cast<PluginInsert> (insert)) != 0) {
 558
 559                         LadspaPluginUI *plugin_ui = new LadspaPluginUI (plugin_insert, true);
 560
 561                         if (place == PreFader) {
 562                                 cleanup_pre_view();
 563                                 _pre_plugin_conn = plugin_insert->plugin()->GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::plugin_going_away), PreFader));
 564                                 plugin_ui->start_updating (0);
 565                                 _active_pre_view = plugin_ui;
 566                                 pre_redir_hpane.pack2 (*_active_pre_view);
 567                                 pre_redir_hpane.show_all();
 568                         }
 569                         else {
 570                                 cleanup_post_view();
 571                                 _post_plugin_conn = plugin_insert->plugin()->GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::plugin_going_away), PostFader));
 572                                 plugin_ui->start_updating (0);
 573                                 _active_post_view = plugin_ui;
 574                                 post_redir_hpane.pack2 (*_active_post_view);
 575                                 post_redir_hpane.show_all();
 576                         }
 577
 578                 } else if ((port_insert = boost::dynamic_pointer_cast<PortInsert> (insert)) != 0) {
 579
 580                         PortInsertUI *portinsert_ui = new PortInsertUI (*session, port_insert);
 581
 582                         if (place == PreFader) {
 583                                 cleanup_pre_view();
 584                                 _pre_plugin_conn = port_insert->GoingAway.connect (mem_fun(*this, &RouteParams_UI::redirect_going_away));
 585                                 _active_pre_view = portinsert_ui;
 586                                 pre_redir_hpane.pack2 (*_active_pre_view);
 587                                 portinsert_ui->redisplay();
 588                                 pre_redir_hpane.show_all();
 589                         }
 590                         else {
 591                                 cleanup_post_view();
 592                                 _post_plugin_conn = port_insert->GoingAway.connect (mem_fun(*this, &RouteParams_UI::redirect_going_away));
 593                                 _active_post_view = portinsert_ui;
 594                                 post_redir_hpane.pack2 (*_active_post_view);
 595                                 portinsert_ui->redisplay();
 596                                 post_redir_hpane.show_all();
 597                         }
 598                 }
 599
 600         }
 601
 602         if (place == PreFader) {
 603                 _pre_redirect = redirect;
 604         } else {
 605                 _post_redirect = redirect;
 606         }
 607
 608         update_title();
 609
 610 }
 611
 612 void
 613 RouteParams_UI::plugin_going_away (Plugin *plugin, Placement place)
 614 {
 615         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::plugin_going_away), plugin, place));
 616
 617         // delete the current view without calling finish
 618
 619         if (place == PreFader) {
 620                 cleanup_pre_view (false);
 621                 _pre_redirect.reset ((Redirect*) 0);
 622         }
 623         else {
 624                 cleanup_post_view (false);
 625                 _post_redirect.reset ((Redirect*) 0);
 626         }
 627 }
 628
 629 void
 630 RouteParams_UI::redirect_going_away (ARDOUR::Redirect *plugin)
 631
 632 {
 633         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::redirect_going_away), plugin));
 634
 635         printf ("redirect going away\n");
 636         // delete the current view without calling finish
 637         if (plugin == _pre_redirect.get()) {
 638                 cleanup_pre_view (false);
 639                 _pre_redirect.reset ((Redirect*) 0);
 640         }
 641         else if (plugin == _post_redirect.get()) {
 642                 cleanup_post_view (false);
 643                 _post_redirect.reset ((Redirect*) 0);
 644         }
 645 }
 646
 647
 648 void
 649 RouteParams_UI::update_title ()
 650 {
 651         if (_route) {
 652                 string title;
 653                 title += _route->name();
 654 //              title += ": ";
 655
 656 //              if (_redirect && (_current_view == PLUGIN_CONFIG_VIEW || _current_view == SEND_CONFIG_VIEW)) {
 657 //                      title += _redirect->name();
 658 //              }
 659 //              else if (_current_view == INPUT_CONFIG_VIEW) {
 660 //                      title += _("INPUT");
 661 //              }
 662 //              else if (_current_view == OUTPUT_CONFIG_VIEW) {
 663 //                      title += _("OUTPUT");
 664 //              }
 665
 666                 title_label.set_text(title);
 667
 668                 title = _("ardour: track/bus inspector: ") + title;
 669                 set_title(title);
 670         }
 671         else {
 672                 title_label.set_text(_("No Route Selected"));
 673                 set_title(_("ardour: track/bus/inspector: no route selected"));
 674         }
 675 }
 676
 677
 678 void
 679 RouteParams_UI::start_updating ()
 680 {
 681         update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
 682                 (mem_fun(*this, &RouteParams_UI::update_views));
 683 }
 684
 685 void
 686 RouteParams_UI::stop_updating ()
 687 {
 688         update_connection.disconnect();
 689 }
 690
 691 void
 692 RouteParams_UI::update_views ()
 693 {
 694         SendUI *sui;
 695         // TODO: only do it if correct tab is showing
 696
 697         if ((sui = dynamic_cast<SendUI*> (_active_pre_view)) != 0) {
 698                 sui->update ();
 699         }
 700         if ((sui = dynamic_cast<SendUI*> (_active_post_view)) != 0) {
 701                 sui->update ();
 702         }
 703
 704 }