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 <pbd/lockmonitor.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/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 Gtk;
  56 using namespace sigc;
  57
  58 RouteParams_UI::RouteParams_UI (AudioEngine& eng)
  59         : ArdourDialog ("track/bus inspector"),
  60           engine (eng),
  61           _route(0),
  62           track_menu(0)
  63 {
  64         pre_redirect_box = 0;
  65         post_redirect_box = 0;
  66         _route = 0;
  67         _pre_redirect = 0;
  68         _post_redirect = 0;
  69         _input_iosel = 0;
  70         _output_iosel = 0;
  71         _active_pre_view = 0;
  72         _active_post_view = 0;
  73
  74         using namespace Notebook_Helpers;
  75
  76         input_frame.set_shadow_type(Gtk::SHADOW_NONE);
  77         output_frame.set_shadow_type(Gtk::SHADOW_NONE);
  78
  79         notebook.set_show_tabs (true);
  80         notebook.set_show_border (true);
  81         notebook.set_name ("RouteParamNotebook");
  82
  83         // create the tree model
  84         route_display_model = ListStore::create(route_display_columns);
  85
  86         // setup the treeview
  87         route_display.set_model(route_display_model);
  88         route_display.append_column(_("Tracks/Buses"), route_display_columns.text);
  89         route_display.set_name(X_("RouteParamsListDisplay"));
  90         route_display.get_selection()->set_mode(Gtk::SELECTION_SINGLE); // default
  91         route_display.set_reorderable(false);
  92         route_display.set_size_request(75, -1);
  93         route_display.set_headers_visible(true);
  94         route_display.set_headers_clickable(true);
  95
  96         route_select_scroller.add(route_display);
  97         route_select_scroller.set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
  98
  99
 100         route_select_frame.set_name("RouteSelectBaseFrame");
 101         route_select_frame.set_shadow_type (Gtk::SHADOW_IN);
 102         route_select_frame.add(route_select_scroller);
 103
 104         list_vpacker.pack_start (route_select_frame, true, true);
 105
 106         notebook.pages().push_back (TabElem (input_frame, _("Inputs")));
 107         notebook.pages().push_back (TabElem (output_frame, _("Outputs")));
 108         notebook.pages().push_back (TabElem (pre_redir_hpane, _("Pre-fader Redirects")));
 109         notebook.pages().push_back (TabElem (post_redir_hpane, _("Post-fader Redirects")));
 110
 111         notebook.set_name ("InspectorNotebook");
 112
 113         title_label.set_name ("RouteParamsTitleLabel");
 114         update_title();
 115
 116         // changeable area
 117         route_param_frame.set_name("RouteParamsBaseFrame");
 118         route_param_frame.set_shadow_type (Gtk::SHADOW_IN);
 119
 120
 121         route_hpacker.pack_start (notebook, true, true);
 122
 123
 124         route_vpacker.pack_start (title_label, false, false);
 125         route_vpacker.pack_start (route_hpacker, true, true);
 126
 127
 128         list_hpane.add1 (list_vpacker);
 129         list_hpane.add2 (route_vpacker);
 130
 131         list_hpane.set_position(110);
 132
 133         pre_redir_hpane.set_position(110);
 134         post_redir_hpane.set_position(110);
 135
 136         global_vpacker.pack_start (list_hpane, true, true);
 137
 138         add (global_vpacker);
 139         set_name ("RouteParamsWindow");
 140         set_default_size (620,370);
 141         set_title (_("ardour: track/bus inspector"));
 142         set_wmclass (_("ardour_route_parameters"), "Ardour");
 143
 144         // events
 145         route_display.get_selection()->signal_changed().connect(mem_fun(*this, &RouteParams_UI::route_selected));
 146         route_display.get_column(0)->signal_clicked().connect(mem_fun(*this, &RouteParams_UI::show_track_menu));
 147
 148         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK|Gdk::BUTTON_RELEASE_MASK);
 149
 150         _plugin_selector = new PluginSelector (PluginManager::the_manager());
 151         _plugin_selector->signal_delete_event().connect (bind (ptr_fun (just_hide_it),
 152                                                      static_cast<Window *> (_plugin_selector)));
 153
 154
 155         signal_delete_event().connect(bind(ptr_fun(just_hide_it), static_cast<Gtk::Window *>(this)));
 156 }
 157
 158 RouteParams_UI::~RouteParams_UI ()
 159 {
 160 }
 161
 162 void
 163 RouteParams_UI::add_route (Route* route)
 164 {
 165         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::add_route), route));
 166
 167         if (route->hidden()) {
 168                 return;
 169         }
 170
 171         TreeModel::Row row = *(route_display_model->append());
 172         row[route_display_columns.text] = route->name();
 173         row[route_display_columns.route] = route;
 174
 175         //route_select_list.rows().back().select ();
 176
 177         route->name_changed.connect (bind (mem_fun(*this, &RouteParams_UI::route_name_changed), route));
 178         route->GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::route_removed), route));
 179 }
 180
 181
 182 void
 183 RouteParams_UI::route_name_changed (void *src, Route *route)
 184 {
 185         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::route_name_changed), src, route));
 186
 187         bool found = false ;
 188         TreeModel::Children rows = route_display_model->children();
 189         for(TreeModel::Children::iterator iter = rows.begin(); iter != rows.end(); ++iter) {
 190                 if((*iter)[route_display_columns.route] == route) {
 191                         (*iter)[route_display_columns.text] = route->name() ;
 192                         found = true ;
 193                         break;
 194                 }
 195         }
 196
 197         if(!found)
 198         {
 199                 error << _("route display list item for renamed route not found!") << endmsg;
 200         }
 201
 202         if (route == _route) {
 203                 track_input_label.set_text (route->name());
 204                 update_title();
 205         }
 206 }
 207
 208 void
 209 RouteParams_UI::setup_redirect_boxes()
 210 {
 211         if (session && _route) {
 212
 213                 // just in case... shouldn't need this
 214                 cleanup_redirect_boxes();
 215
 216                 // construct new redirect boxes
 217                 pre_redirect_box = new RedirectBox(PreFader, *session, *_route, *_plugin_selector, _rr_selection);
 218                 post_redirect_box = new RedirectBox(PostFader, *session, *_route, *_plugin_selector, _rr_selection);
 219
 220                 pre_redir_hpane.add1 (*pre_redirect_box);
 221                 post_redir_hpane.add1 (*post_redirect_box);
 222
 223                 pre_redirect_box->RedirectSelected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PreFader));
 224                 pre_redirect_box->RedirectUnselected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PreFader));
 225                 post_redirect_box->RedirectSelected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PostFader));
 226                 post_redirect_box->RedirectUnselected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PostFader));
 227
 228         }
 229
 230 }
 231
 232 void
 233 RouteParams_UI::cleanup_redirect_boxes()
 234 {
 235         if (pre_redirect_box) {
 236                 pre_redir_hpane.remove(*pre_redirect_box);
 237                 delete pre_redirect_box;
 238                 pre_redirect_box = 0;
 239         }
 240
 241         if (post_redirect_box) {
 242                 post_redir_hpane.remove(*post_redirect_box);
 243                 delete post_redirect_box;
 244                 post_redirect_box = 0;
 245         }
 246 }
 247
 248 void
 249 RouteParams_UI::setup_io_frames()
 250 {
 251         cleanup_io_frames();
 252
 253         // input
 254         _input_iosel = new IOSelector (*session, *_route, true);
 255         _input_iosel->redisplay ();
 256         input_frame.add (*_input_iosel);
 257         input_frame.show_all();
 258
 259         // output
 260         _output_iosel = new IOSelector (*session, *_route, false);
 261         _output_iosel->redisplay ();
 262         output_frame.add (*_output_iosel);
 263         output_frame.show_all();
 264 }
 265
 266 void
 267 RouteParams_UI::cleanup_io_frames()
 268 {
 269         if (_input_iosel) {
 270                 _input_iosel->Finished (IOSelector::Cancelled);
 271                 input_frame.remove();
 272                 delete _input_iosel;
 273                 _input_iosel = 0;
 274         }
 275
 276         if (_output_iosel) {
 277                 _output_iosel->Finished (IOSelector::Cancelled);
 278
 279                 output_frame.remove();
 280                 delete _output_iosel;
 281                 _output_iosel = 0;
 282         }
 283 }
 284
 285 void
 286 RouteParams_UI::cleanup_pre_view (bool stopupdate)
 287 {
 288         if (_active_pre_view) {
 289                 PluginUI *   plugui = 0;
 290
 291                 if (stopupdate && (plugui = dynamic_cast<PluginUI*>(_active_pre_view)) != 0) {
 292                           plugui->stop_updating (0);
 293                 }
 294
 295                 _pre_plugin_conn.disconnect();
 296                 pre_redir_hpane.remove(*_active_pre_view);
 297                 delete _active_pre_view;
 298                 _active_pre_view = 0;
 299         }
 300 }
 301
 302 void
 303 RouteParams_UI::cleanup_post_view (bool stopupdate)
 304 {
 305         if (_active_post_view) {
 306                 PluginUI *   plugui = 0;
 307
 308                 if (stopupdate && (plugui = dynamic_cast<PluginUI*>(_active_post_view)) != 0) {
 309                           plugui->stop_updating (0);
 310                 }
 311                 _post_plugin_conn.disconnect();
 312                 post_redir_hpane.remove(*_active_post_view);
 313                 delete _active_post_view;
 314                 _active_post_view = 0;
 315         }
 316 }
 317
 318
 319 void
 320 RouteParams_UI::route_removed (Route *route)
 321 {
 322         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::route_removed), route));
 323         /*
 324         route_select_list.freeze ();
 325         route_select_list.clear ();
 326         session->foreach_route (this, &RouteParams_UI::add_route);
 327         route_select_list.thaw ();
 328         */
 329
 330         TreeModel::Children rows = route_display_model->children();
 331         TreeModel::Children::iterator ri;
 332
 333         for(TreeModel::Children::iterator iter = rows.begin(); iter != rows.end(); ++iter) {
 334                 if((*iter)[route_display_columns.route] == route) {
 335                         route_display_model->erase(iter);
 336                         break;
 337                 }
 338         }
 339
 340         if (route == _route)
 341         {
 342                 cleanup_io_frames();
 343                 cleanup_pre_view();
 344                 cleanup_post_view();
 345                 cleanup_redirect_boxes();
 346
 347                 _route = 0;
 348                 _pre_redirect = 0;
 349                 _post_redirect = 0;
 350                 update_title();
 351         }
 352 }
 353
 354 void
 355 RouteParams_UI::set_session (Session *sess)
 356 {
 357         ArdourDialog::set_session (sess);
 358
 359         // GTK2FIX
 360         // route_select_list.freeze ();
 361
 362         route_display_model->clear();
 363
 364         if (session) {
 365                 session->foreach_route (this, &RouteParams_UI::add_route);
 366                 session->going_away.connect (mem_fun(*this, &ArdourDialog::session_gone));
 367                 session->RouteAdded.connect (mem_fun(*this, &RouteParams_UI::add_route));
 368                 start_updating ();
 369         } else {
 370                 stop_updating ();
 371         }
 372
 373         //route_select_list.thaw ();
 374
 375         _plugin_selector->set_session (session);
 376 }
 377
 378
 379 void
 380 RouteParams_UI::session_gone ()
 381 {
 382         ENSURE_GUI_THREAD(mem_fun(*this, &RouteParams_UI::session_gone));
 383
 384         route_display_model->clear();
 385
 386         cleanup_io_frames();
 387         cleanup_pre_view();
 388         cleanup_post_view();
 389         cleanup_redirect_boxes();
 390
 391         _route = 0;
 392         _pre_redirect = 0;
 393         _post_redirect = 0;
 394         update_title();
 395
 396         ArdourDialog::session_gone();
 397
 398 }
 399
 400 void
 401 RouteParams_UI::route_selected()
 402 {
 403         Glib::RefPtr<TreeSelection> selection = route_display.get_selection();
 404         TreeModel::iterator iter = selection->get_selected(); // only used with Gtk::SELECTION_SINGLE
 405         if(iter) {
 406                 //If anything is selected
 407                 Route* route = (*iter)[route_display_columns.route] ;
 408
 409                 if (_route == route) {
 410                         // do nothing
 411                         return;
 412                 }
 413
 414                 // remove event binding from previously selected
 415                 if (_route) {
 416                         _route_conn.disconnect();
 417                         _route_ds_conn.disconnect();
 418                         cleanup_redirect_boxes();
 419                         cleanup_pre_view();
 420                         cleanup_post_view();
 421                         cleanup_io_frames();
 422                 }
 423
 424                 // update the other panes with the correct info
 425                 _route = route;
 426                 //update_routeinfo (route);
 427
 428                 setup_io_frames();
 429                 setup_redirect_boxes();
 430
 431                 // bind to redirects changed event for this route
 432                 _route_conn = route->redirects_changed.connect (mem_fun(*this, &RouteParams_UI::redirects_changed));
 433
 434                 track_input_label.set_text (_route->name());
 435
 436                 update_title();
 437         } else {
 438                 // no selection
 439                 if (_route) {
 440                         _route_conn.disconnect();
 441
 442                         // remove from view
 443                         cleanup_io_frames();
 444                         cleanup_pre_view();
 445                         cleanup_post_view();
 446                         cleanup_redirect_boxes();
 447
 448                         _route = 0;
 449                         _pre_redirect = 0;
 450                         _post_redirect = 0;
 451                         track_input_label.set_text(_("NO TRACK"));
 452                         update_title();
 453                 }
 454         }
 455 }
 456
 457 //void
 458 //RouteParams_UI::route_unselected (gint row, gint col, GdkEvent *ev)
 459 //{
 460 //      if (_route) {
 461 //              _route_conn.disconnect();
 462
 463                 // remove from view
 464 //              cleanup_io_frames();
 465 //              cleanup_pre_view();
 466 //              cleanup_post_view();
 467 //              cleanup_redirect_boxes();
 468
 469 //              _route = 0;
 470 //              _pre_redirect = 0;
 471 //              _post_redirect = 0;
 472 //              track_input_label.set_text(_("NO TRACK"));
 473 //              update_title();
 474 //      }
 475 //}
 476
 477 void
 478 RouteParams_UI::redirects_changed (void *src)
 479
 480 {
 481         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::redirects_changed), src));
 482
 483 //      pre_redirect_list.freeze ();
 484 //      pre_redirect_list.clear ();
 485 //      post_redirect_list.freeze ();
 486 //      post_redirect_list.clear ();
 487 //      if (_route) {
 488 //              _route->foreach_redirect (this, &RouteParams_UI::add_redirect_to_display);
 489 //      }
 490 //      pre_redirect_list.thaw ();
 491 //      post_redirect_list.thaw ();
 492
 493         cleanup_pre_view();
 494         cleanup_post_view();
 495
 496         _pre_redirect = 0;
 497         _post_redirect = 0;
 498         //update_title();
 499 }
 500
 501
 502
 503 void
 504 RouteParams_UI::show_track_menu()
 505 {
 506         using namespace Menu_Helpers;
 507
 508         if (track_menu == 0) {
 509                 track_menu = new Menu;
 510                 track_menu->set_name ("ArdourContextMenu");
 511                 track_menu->items().push_back
 512                                 (MenuElem (_("Add Track/Bus"),
 513                                            mem_fun (*(ARDOUR_UI::instance()), &ARDOUR_UI::add_route)));
 514         }
 515         track_menu->popup (1, 0);
 516 }
 517
 518
 519
 520 void
 521 RouteParams_UI::redirect_selected (ARDOUR::Redirect *redirect, ARDOUR::Placement place)
 522 {
 523         Insert *insert;
 524
 525         if ((place == PreFader && _pre_redirect == redirect)
 526             || (place == PostFader && _post_redirect == redirect)){
 527                 return;
 528         }
 529
 530         if ((insert = dynamic_cast<Insert *> (redirect)) == 0) {
 531
 532                 Send *send;
 533
 534                 if ((send = dynamic_cast<Send *> (redirect)) != 0) {
 535
 536                         /* its a send */
 537
 538                         SendUI *send_ui = new SendUI (*send, *session);
 539
 540                         if (place == PreFader) {
 541                                 cleanup_pre_view();
 542                                 _pre_plugin_conn = send->GoingAway.connect (mem_fun(*this, &RouteParams_UI::redirect_going_away));
 543                                 _active_pre_view = send_ui;
 544
 545                                 pre_redir_hpane.add2 (*_active_pre_view);
 546                                 pre_redir_hpane.show_all();
 547                         }
 548                         else {
 549                                 cleanup_post_view();
 550                                 _post_plugin_conn = send->GoingAway.connect (mem_fun(*this, &RouteParams_UI::redirect_going_away));
 551                                 _active_post_view = send_ui;
 552
 553                                 post_redir_hpane.add2 (*_active_post_view);
 554                                 post_redir_hpane.show_all();
 555                         }
 556                 }
 557
 558         } else {
 559                 /* its an insert, though we don't know what kind yet. */
 560
 561                 PluginInsert *plugin_insert;
 562                 PortInsert *port_insert;
 563
 564                 if ((plugin_insert = dynamic_cast<PluginInsert *> (insert)) != 0) {
 565
 566                         PluginUI *plugin_ui = new PluginUI (session->engine(), *plugin_insert, true);
 567
 568                         if (place == PreFader) {
 569                                 cleanup_pre_view();
 570                                 _pre_plugin_conn = plugin_insert->plugin().GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::plugin_going_away), PreFader));
 571                                 plugin_ui->start_updating (0);
 572                                 _active_pre_view = plugin_ui;
 573                                 pre_redir_hpane.add2 (*_active_pre_view);
 574                                 pre_redir_hpane.show_all();
 575                         }
 576                         else {
 577                                 cleanup_post_view();
 578                                 _post_plugin_conn = plugin_insert->plugin().GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::plugin_going_away), PostFader));
 579                                 plugin_ui->start_updating (0);
 580                                 _active_post_view = plugin_ui;
 581                                 post_redir_hpane.add2 (*_active_post_view);
 582                                 post_redir_hpane.show_all();
 583                         }
 584
 585                 } else if ((port_insert = dynamic_cast<PortInsert *> (insert)) != 0) {
 586
 587                         PortInsertUI *portinsert_ui = new PortInsertUI (*session, *port_insert);
 588
 589                         if (place == PreFader) {
 590                                 cleanup_pre_view();
 591                                 _pre_plugin_conn = port_insert->GoingAway.connect (mem_fun(*this, &RouteParams_UI::redirect_going_away));
 592                                 _active_pre_view = portinsert_ui;
 593                                 pre_redir_hpane.add2 (*_active_pre_view);
 594                                 portinsert_ui->redisplay();
 595                                 pre_redir_hpane.show_all();
 596                         }
 597                         else {
 598                                 cleanup_post_view();
 599                                 _post_plugin_conn = port_insert->GoingAway.connect (mem_fun(*this, &RouteParams_UI::redirect_going_away));
 600                                 _active_post_view = portinsert_ui;
 601                                 post_redir_hpane.add2 (*_active_post_view);
 602                                 portinsert_ui->redisplay();
 603                                 post_redir_hpane.show_all();
 604                         }
 605                 }
 606
 607         }
 608
 609         if (place == PreFader) {
 610                 _pre_redirect = redirect;
 611         }
 612         else {
 613                 _post_redirect = redirect;
 614         }
 615
 616         update_title();
 617
 618 }
 619
 620 void
 621 RouteParams_UI::redirect_unselected (ARDOUR::Redirect *redirect)
 622 {
 623         // not called anymore
 624
 625         if (redirect == _pre_redirect) {
 626                 cleanup_pre_view();
 627                 _pre_redirect = 0;
 628         }
 629         else if (redirect == _post_redirect) {
 630                 cleanup_post_view();
 631                 _post_redirect = 0;
 632         }
 633 }
 634
 635
 636
 637 void
 638 RouteParams_UI::plugin_going_away (Plugin *plugin, Placement place)
 639 {
 640         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::plugin_going_away), plugin, place));
 641
 642         // delete the current view without calling finish
 643
 644         if (place == PreFader) {
 645                 cleanup_pre_view (false);
 646                 _pre_redirect = 0;
 647         }
 648         else {
 649                 cleanup_post_view (false);
 650                 _post_redirect = 0;
 651         }
 652 }
 653
 654 void
 655 RouteParams_UI::redirect_going_away (ARDOUR::Redirect *plugin)
 656
 657 {
 658         ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::redirect_going_away), plugin));
 659
 660         printf ("redirect going away\n");
 661         // delete the current view without calling finish
 662         if (plugin == _pre_redirect) {
 663                 cleanup_pre_view (false);
 664                 _pre_redirect = 0;
 665         }
 666         else if (plugin == _post_redirect) {
 667                 cleanup_post_view (false);
 668                 _post_redirect = 0;
 669         }
 670 }
 671
 672
 673 void
 674 RouteParams_UI::update_title ()
 675 {
 676         if (_route) {
 677                 string title;
 678                 title += _route->name();
 679 //              title += ": ";
 680
 681 //              if (_redirect && (_current_view == PLUGIN_CONFIG_VIEW || _current_view == SEND_CONFIG_VIEW)) {
 682 //                      title += _redirect->name();
 683 //              }
 684 //              else if (_current_view == INPUT_CONFIG_VIEW) {
 685 //                      title += _("INPUT");
 686 //              }
 687 //              else if (_current_view == OUTPUT_CONFIG_VIEW) {
 688 //                      title += _("OUTPUT");
 689 //              }
 690
 691                 title_label.set_text(title);
 692
 693                 title = _("ardour: track/bus inspector: ") + title;
 694                 set_title(title);
 695         }
 696         else {
 697                 title_label.set_text(_("No Route Selected"));
 698                 set_title(_("ardour: track/bus/inspector: no route selected"));
 699         }
 700 }
 701
 702
 703 void
 704 RouteParams_UI::start_updating ()
 705 {
 706         update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
 707                 (mem_fun(*this, &RouteParams_UI::update_views));
 708 }
 709
 710 void
 711 RouteParams_UI::stop_updating ()
 712 {
 713         update_connection.disconnect();
 714 }
 715
 716 void
 717 RouteParams_UI::update_views ()
 718 {
 719         SendUI *sui;
 720         // TODO: only do it if correct tab is showing
 721
 722         if ((sui = dynamic_cast<SendUI*> (_active_pre_view)) != 0) {
 723                 sui->update ();
 724         }
 725         if ((sui = dynamic_cast<SendUI*> (_active_post_view)) != 0) {
 726                 sui->update ();
 727         }
 728
 729 }