gtk2_ardour/connection_editor.cc

   1 /*
   2     Copyright (C) 2002 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 <map>
  22 #include <vector>
  23 #include <stdint.h>
  24
  25 #include <gtkmm2ext/gtk_ui.h>
  26 #include <gtkmm2ext/utils.h>
  27 #include <sigc++/bind.h>
  28
  29 #include "connection_editor.h"
  30
  31 #include <ardour/session.h>
  32 #include <ardour/session_connection.h>
  33 #include <ardour/audioengine.h>
  34 #include <ardour/connection.h>
  35
  36 #include "utils.h"
  37 #include "keyboard.h"
  38 #include "prompter.h"
  39
  40 #include "i18n.h"
  41
  42 #include <inttypes.h>
  43
  44 using namespace std;
  45 using namespace ARDOUR;
  46 using namespace PBD;
  47 using namespace Gtk;
  48 using namespace sigc;
  49
  50 ConnectionEditor::ConnectionEditor ()
  51         : ArdourDialog (_("ardour: connections")),
  52           input_frame (_("Input Connections")),
  53           output_frame (_("Output Connections")),
  54           new_input_connection_button (_("New Input")),
  55           new_output_connection_button (_("New Output")),
  56           delete_connection_button (_("Delete")),
  57           clear_button (_("Clear")),
  58           add_port_button (_("Add Port")),
  59           ok_button (_("Close")),
  60           cancel_button (_("Cancel")),
  61           rescan_button (_("Rescan"))
  62
  63 {
  64         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
  65
  66         session = 0;
  67         selected_port = -1;
  68         current_connection = 0;
  69         push_at_front = false;
  70
  71         set_name ("ConnectionEditorWindow");
  72
  73         ok_button.set_name ("ConnectionEditorButton");
  74         cancel_button.set_name ("ConnectionEditorButton");
  75         rescan_button.set_name ("ConnectionEditorButton");
  76         new_input_connection_button.set_name ("ConnectionEditorButton");
  77         new_output_connection_button.set_name ("ConnectionEditorButton");
  78         clear_button.set_name ("ConnectionEditorButton");
  79
  80         button_frame.set_name ("ConnectionEditorFrame");
  81         input_frame.set_name ("ConnectionEditorFrame");
  82         output_frame.set_name ("ConnectionEditorFrame");
  83
  84         button_box.set_spacing (15);
  85         button_box.set_border_width (5);
  86         Gtkmm2ext::set_size_request_to_display_given_text (ok_button, _("OK"), 40, 15);
  87         button_box.pack_end (ok_button, false, false);
  88         // button_box.pack_end (cancel_button, false, false);
  89         cancel_button.hide();
  90         button_frame.add (button_box);
  91
  92         ok_button.signal_clicked().connect (mem_fun(*this, &ConnectionEditor::accept));
  93         cancel_button.signal_clicked().connect (mem_fun(*this, &ConnectionEditor::cancel));
  94         cancel_button.signal_clicked().connect (mem_fun(*this, &ConnectionEditor::rescan));
  95
  96         notebook.set_name ("ConnectionEditorNotebook");
  97         notebook.set_size_request (-1, 125);
  98
  99         clear_button.set_name ("ConnectionEditorButton");
 100         add_port_button.set_name ("ConnectionEditorButton");
 101         Gtkmm2ext::set_size_request_to_display_given_text (add_port_button, _("Add Port"), 35, 15);
 102
 103         selector_frame.set_name ("ConnectionEditorFrame");
 104         port_frame.set_name ("ConnectionEditorFrame");
 105
 106         selector_frame.set_label (_("Available Ports"));
 107
 108         selector_button_box.set_spacing (5);
 109         selector_button_box.set_border_width (5);
 110         Gtkmm2ext::set_size_request_to_display_given_text (rescan_button, _("Rescan"), 35, 15);
 111         selector_button_box.pack_start (rescan_button, false, false);
 112
 113         selector_box.set_spacing (5);
 114         selector_box.set_border_width (5);
 115         selector_box.pack_start (notebook);
 116         selector_box.pack_start (selector_button_box);
 117
 118         selector_frame.add (selector_box);
 119
 120         port_box.set_spacing (5);
 121         port_box.set_border_width (3);
 122
 123         port_button_box.set_spacing (5);
 124         port_button_box.set_border_width (2);
 125
 126         port_button_box.pack_start (add_port_button, false, false);
 127         port_and_button_box.set_border_width (5);
 128         port_and_button_box.pack_start (port_button_box, false, false);
 129         port_and_button_box.pack_start (port_box);
 130
 131         port_frame.add (port_and_button_box);
 132
 133         port_and_selector_box.set_spacing (5);
 134         port_and_selector_box.pack_start (port_frame);
 135         port_and_selector_box.pack_start (selector_frame);
 136
 137         right_vbox.set_spacing (5);
 138         right_vbox.set_border_width (5);
 139         right_vbox.pack_start (port_and_selector_box);
 140
 141         input_connection_model = ListStore::create (connection_columns);
 142         output_connection_model = ListStore::create (connection_columns);
 143
 144         input_connection_display.set_model (input_connection_model);
 145         output_connection_display.set_model (output_connection_model);
 146
 147         input_connection_display.append_column (_("Connections"), connection_columns.name);
 148         output_connection_display.append_column (_("Connections"), connection_columns.name);
 149
 150         input_connection_display.get_selection()->set_mode(Gtk::SELECTION_SINGLE);
 151         input_connection_display.set_size_request (80, -1);
 152         input_connection_display.set_name ("ConnectionEditorConnectionList");
 153
 154         output_connection_display.get_selection()->set_mode(Gtk::SELECTION_SINGLE);
 155         output_connection_display.set_size_request (80, -1);
 156         output_connection_display.set_name ("ConnectionEditorConnectionList");
 157
 158         input_connection_display.get_selection()->signal_changed().connect (bind (mem_fun(*this, &ConnectionEditor::selection_changed), &input_connection_display));
 159         output_connection_display.get_selection()->signal_changed().connect (bind (mem_fun(*this, &ConnectionEditor::selection_changed), &output_connection_display));
 160
 161
 162         input_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 163         output_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 164
 165         input_scroller.add (input_connection_display);
 166         output_scroller.add (output_connection_display);
 167
 168         input_box.set_border_width (5);
 169         input_box.set_spacing (5);
 170         input_box.pack_start (input_scroller);
 171         input_box.pack_start (new_input_connection_button, false, false);
 172         input_frame.add (input_box);
 173
 174         output_box.set_border_width (5);
 175         output_box.set_spacing (5);
 176         output_box.pack_start (output_scroller);
 177         output_box.pack_start (new_output_connection_button, false, false);
 178         output_frame.add (output_box);
 179
 180         connection_box.set_spacing (5);
 181         connection_box.pack_start (input_frame);
 182         connection_box.pack_start (output_frame);
 183
 184         left_vbox.set_spacing (5);
 185         left_vbox.pack_start (connection_box);
 186
 187         main_hbox.set_border_width (10);
 188         main_hbox.set_spacing (5);
 189         main_hbox.pack_start (left_vbox);
 190         main_hbox.pack_start (right_vbox);
 191
 192         main_vbox.set_border_width (10);
 193         main_vbox.set_spacing (5);
 194         main_vbox.pack_start (main_hbox);
 195         main_vbox.pack_start (button_frame, false, false);
 196
 197         get_vbox()->pack_start (main_vbox);
 198
 199         clear_button.signal_clicked().connect (mem_fun(*this, &ConnectionEditor::clear));
 200         add_port_button.signal_clicked().connect (mem_fun(*this, &ConnectionEditor::add_port));
 201         new_input_connection_button.signal_clicked().connect (bind (mem_fun(*this, &ConnectionEditor::new_connection), true));
 202         new_output_connection_button.signal_clicked().connect (bind (mem_fun(*this, &ConnectionEditor::new_connection), false));
 203         delete_connection_button.signal_clicked().connect (mem_fun(*this, &ConnectionEditor::delete_connection));
 204 }
 205
 206 ConnectionEditor::~ConnectionEditor()
 207 {
 208 }
 209
 210 void
 211 ConnectionEditor::set_session (Session *s)
 212 {
 213         if (s != session) {
 214
 215                 ArdourDialog::set_session (s);
 216
 217                 if (session) {
 218                         session->ConnectionAdded.connect (mem_fun(*this, &ConnectionEditor::proxy_add_connection_and_select));
 219                         session->ConnectionRemoved.connect (mem_fun(*this, &ConnectionEditor::proxy_remove_connection));
 220                 } else {
 221                         hide ();
 222                 }
 223         }
 224 }
 225
 226 void
 227 ConnectionEditor::rescan ()
 228 {
 229         refill_connection_display ();
 230         display_ports ();
 231 }
 232
 233 void
 234 ConnectionEditor::cancel ()
 235 {
 236         hide ();
 237 }
 238
 239 void
 240 ConnectionEditor::accept ()
 241 {
 242         hide ();
 243 }
 244
 245 void
 246 ConnectionEditor::clear ()
 247 {
 248         if (current_connection) {
 249                 current_connection->clear ();
 250         }
 251 }
 252
 253 void
 254 ConnectionEditor::on_map ()
 255 {
 256         refill_connection_display ();
 257         Window::on_map ();
 258 }
 259
 260 void
 261 ConnectionEditor::add_connection (ARDOUR::Connection *connection)
 262 {
 263         TreeModel::Row row;
 264
 265         if (dynamic_cast<InputConnection *> (connection)) {
 266
 267                 if (push_at_front) {
 268                         row = *(input_connection_model->prepend());
 269                 } else {
 270                         row = *(input_connection_model->append());
 271                 }
 272
 273         } else {
 274
 275                 if (push_at_front) {
 276                         row = *(output_connection_model->prepend());
 277                 } else {
 278                         row = *(output_connection_model->append());
 279                 }
 280         }
 281
 282         row[connection_columns.connection] = connection;
 283         row[connection_columns.name] = connection->name();
 284 }
 285
 286 void
 287 ConnectionEditor::remove_connection (ARDOUR::Connection *connection)
 288 {
 289         TreeModel::iterator i;
 290         Glib::RefPtr<TreeModel> model = input_connection_model;
 291
 292         if (dynamic_cast<InputConnection *> (connection) == 0) {
 293                 model = output_connection_model;
 294         }
 295
 296         TreeModel::Children rows = model->children();
 297
 298         for (i = rows.begin(); i != rows.end(); ++i) {
 299                 if ((*i)[connection_columns.connection] == connection) {
 300                         // model->erase (i);
 301                         break;
 302                 }
 303         }
 304 }
 305
 306 void
 307 ConnectionEditor::proxy_add_connection_and_select (ARDOUR::Connection *connection)
 308 {
 309         Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &ConnectionEditor::add_connection_and_select), connection));
 310 }
 311
 312 void
 313 ConnectionEditor::proxy_remove_connection (ARDOUR::Connection *connection)
 314 {
 315         Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &ConnectionEditor::remove_connection), connection));
 316 }
 317
 318 void
 319 ConnectionEditor::add_connection_and_select (ARDOUR::Connection *connection)
 320 {
 321         add_connection (connection);
 322
 323         // GTK2FIX
 324         // if (dynamic_cast<InputConnection *> (connection)) {
 325         // input_connection_display.rows().front().select ();
 326         // } else {
 327         //      output_connection_display.rows().front().select ();
 328         //}
 329 }
 330
 331 void
 332 ConnectionEditor::refill_connection_display ()
 333 {
 334         input_connection_display.set_model (Glib::RefPtr<TreeModel>(0));
 335         output_connection_display.set_model (Glib::RefPtr<TreeModel>(0));
 336
 337         input_connection_model->clear();
 338         output_connection_model->clear();
 339
 340         current_connection = 0;
 341
 342         if (session) {
 343                 session->foreach_connection (this, &ConnectionEditor::add_connection);
 344         }
 345
 346         input_connection_display.set_model (input_connection_model);
 347         output_connection_display.set_model (output_connection_model);
 348
 349 }
 350
 351 void
 352 ConnectionEditor::selection_changed (TreeView* view)
 353 {
 354         ARDOUR::Connection *old_current = current_connection;
 355
 356         TreeIter iter;
 357         TreeModel::Path path;
 358         Glib::RefPtr<TreeView::Selection> selection = view->get_selection();
 359         Glib::RefPtr<TreeModel> model = view->get_model();
 360         bool input = (view == &input_connection_display);
 361
 362         iter = model->get_iter (path);
 363
 364         current_connection = (*iter)[connection_columns.connection];
 365
 366         if (old_current != current_connection) {
 367                 config_connection.disconnect ();
 368                 connect_connection.disconnect ();
 369         }
 370
 371         if (current_connection) {
 372                 config_connection = current_connection->ConfigurationChanged.connect
 373                         (bind (mem_fun(*this, &ConnectionEditor::configuration_changed), input));
 374                 connect_connection = current_connection->ConnectionsChanged.connect
 375                         (bind (mem_fun(*this, &ConnectionEditor::connections_changed), input));
 376         }
 377
 378         display_connection_state (input);
 379         display_ports ();
 380 }
 381
 382 void
 383 ConnectionEditor::configuration_changed (bool for_input)
 384 {
 385         display_connection_state (for_input);
 386 }
 387
 388 void
 389 ConnectionEditor::connections_changed (int which_port, bool for_input)
 390 {
 391         display_connection_state (for_input);
 392 }
 393
 394 void
 395 ConnectionEditor::display_ports ()
 396 {
 397         if (session == 0 || current_connection == 0) {
 398                 return;
 399         }
 400
 401         using namespace Notebook_Helpers;
 402
 403         typedef std::map<std::string,std::vector<std::pair<std::string,std::string> > > PortMap;
 404         PortMap portmap;
 405         const char **ports;
 406         PageList& pages = notebook.pages();
 407         gint current_page;
 408         vector<string> rowdata;
 409         bool for_input;
 410
 411         current_page = notebook.get_current_page ();
 412         pages.clear ();
 413
 414         /* get relevant current JACK ports */
 415
 416         for_input = (dynamic_cast<InputConnection *> (current_connection) != 0);
 417
 418         ports = session->engine().get_ports ("", JACK_DEFAULT_AUDIO_TYPE, for_input?JackPortIsOutput:JackPortIsInput);
 419
 420         if (ports == 0) {
 421                 return;
 422         }
 423
 424         /* find all the client names and group their ports into a list-by-client */
 425
 426         for (int n = 0; ports[n]; ++n) {
 427
 428                 pair<string,vector<pair<string,string> > > newpair;
 429                 pair<string,string> strpair;
 430                 pair<PortMap::iterator,bool> result;
 431
 432                 string str = ports[n];
 433                 string::size_type pos;
 434                 string portname;
 435
 436                 pos = str.find (':');
 437
 438                 newpair.first = str.substr (0, pos);
 439                 portname = str.substr (pos+1);
 440
 441                 result = portmap.insert (newpair);
 442
 443                 strpair.first = portname;
 444                 strpair.second = str;
 445
 446                 result.first->second.push_back (strpair);
 447         }
 448
 449         PortMap::iterator i;
 450
 451         for (i = portmap.begin(); i != portmap.end(); ++i) {
 452
 453                 Box *client_box = manage (new VBox);
 454                 Gtk::CTreeView *display = manage (new Gtk::TreeView);
 455                 RefPtr<TreeModel> model = TreeModel::create (columns);
 456                 ScrolledWindow *scroller = manage (new ScrolledWindow);
 457
 458                 display->set_selection_mode (GTK_SELECTION_SINGLE);
 459                 display->set_name ("ConnectionEditorList");
 460
 461                 for (vector<pair<string,string> >::iterator s = i->second.begin(); s != i->second.end(); ++s) {
 462
 463                         Row row = model->append ();
 464
 465                         row[displayed_name] = s->first;
 466                         row[full_name] = s->second;
 467                 }
 468
 469                 display->get_selection()->signal_changed().connect (bind (mem_fun(*this, &ConnectionEditor::port_selection_handler), display));
 470
 471                 Label *tab_label = manage (new Label);
 472
 473                 tab_label->set_name ("ConnectionEditorNotebookTab");
 474                 tab_label->set_text ((*i).first);
 475
 476                 display->set_model (model);
 477
 478                 scroller->add (*client_port_display);
 479                 scroller->set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 480
 481                 client_box->pack_start (*scroller);
 482
 483                 pages.push_back (TabElem (*client_box, *tab_label));
 484         }
 485
 486         notebook.set_page (current_page);
 487         notebook.show.connect (bind (mem_fun (notebook, &Notebook::set_page), current_page));
 488         selector_box.show_all ();
 489 }
 490
 491 void
 492 ConnectionEditor::display_connection_state (bool for_input)
 493 {
 494         Glib::Mutex::Lock lm  (port_display_lock);
 495         uint32_t limit;
 496
 497         if (session == 0 || current_connection == 0) {
 498                 return;
 499         }
 500
 501         string frame_label = _("Connection \"");
 502         frame_label += current_connection->name();
 503         frame_label += _("\"");
 504         port_frame.set_label (frame_label);
 505
 506         for (slist<ScrolledWindow *>::iterator i = port_displays.begin(); i != port_displays.end(); ) {
 507
 508                 slist<ScrolledWindow *>::iterator tmp;
 509
 510                 tmp = i;
 511                 tmp++;
 512
 513                 port_box.remove (**i);
 514                 delete *i;
 515                 port_displays.erase (i);
 516
 517                 i = tmp;
 518         }
 519
 520         limit = current_connection->nports();
 521
 522         for (uint32_t n = 0; n < limit; ++n) {
 523
 524                 CList *clist;
 525                 ScrolledWindow *scroller;
 526
 527                 const gchar *title[1];
 528                 char buf[32];
 529                 string really_short_name;
 530
 531                 if (for_input) {
 532                         snprintf(buf, sizeof(buf)-1, _("in %d"), n+1);
 533                 } else {
 534                         snprintf(buf, sizeof(buf)-1, _("out %d"), n+1);
 535                 }
 536
 537                 tview = manage (new TreeView());
 538                 Glib::RefPtr<ListStore> port_model = ListStore::create (*port_display_columns);
 539
 540                 tview->set_model (port_model);
 541                 tview->append_column (_(buf), port_display_columns->name);
 542                 tview->set_selection()->set_mode (Gtk::SELECTION_SINGLE);
 543                 tview->set_data ("port", (gpointer) ((intptr_t) n));
 544                 tview->set_headers_visible (true);
 545                 tview->set_name ("ConnectionEditorPortList");
 546                 tview->signal_button_press_event().connect (bind (mem_fun(*this, &ConnectionEditor::port_column_click), clist));
 547
 548                 scroller = manage (new ScrolledWindow);
 549
 550                 scroller->add (*tview);
 551                 scroller->set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 552
 553                 port_displays.insert (port_displays.end(), scroller);
 554                 port_box.pack_start (*scroller);
 555
 556                 scroller->set_size_request (-1, 75);
 557
 558                 /* now fill the clist with the current connections */
 559
 560                 const ARDOUR::Connection::PortList& connections = current_connection->port_connections (n);
 561
 562                 for (ARDOUR::Connection::PortList::const_iterator i = connections.begin(); i != connections.end(); ++i) {
 563
 564                         TreeModel::Row row = *(model->append());
 565
 566                         row[port_connection_columns.name] = (*i)->name();
 567                 }
 568         }
 569
 570         port_box.show_all ();
 571 }
 572
 573 void
 574 ConnectionEditor::port_selection_changed (TreeView* tview)
 575 {
 576         Glib::RefPtr<TreeView::Selection> sel = tview->get_selection();
 577         TreeModel::iterator iter = sel->get_selected();
 578
 579         if (!current_connection) {
 580                 return;
 581         }
 582
 583         if (iter) {
 584                 TreeModel::Row row = *iter;
 585                 string other_port_name = row[port_display_columns.full_name];
 586
 587
 588         if (current_connection && selected_port >= 0) {
 589                 current_connection->add_connection (selected_port, other_port_name);
 590         }
 591
 592 }
 593
 594 void
 595 ConnectionEditor::add_port ()
 596 {
 597         if (current_connection) {
 598                 current_connection->add_port ();
 599         }
 600 }
 601
 602 void
 603 ConnectionEditor::connection_port_button_press_event (GdkEventButton* ev, TreeView* tview)
 604 {
 605         Glib::Mutex::Lock lm  (port_display_lock);
 606
 607         int which_port = reinterpret_cast<intptr_t> (treeview->get_data ("port"));
 608
 609         if (which_port != selected_port) {
 610
 611                 selected_port = which_port;
 612                 display_ports ();
 613
 614                 tview->set_name ("ConnectionEditorPortListSelected");
 615
 616                 for (slist<ScrolledWindow *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 617
 618                         Widget *child = (*i)->get_child();
 619
 620                         if (static_cast<TreeView *> (child) != tview) {
 621                                 child->set_name ("ConnectionEditorPortList");
 622                                 child->queue_draw ();
 623                         }
 624                 }
 625
 626         } else {
 627
 628                 selected_port = -1;
 629                 clist->set_name ("ConnectionEditorPortList");
 630                 clist->queue_draw();
 631         }
 632 }
 633
 634 void
 635 ConnectionEditor::connection_selection_changed (TreeView* tview);
 636 {
 637         Glib::RefPtr<TreeView::Selection> sel = tview->get_selection();
 638         TreeModel::iterator iter = sel->get_selected();
 639
 640         if (iter) {
 641                 TreeModel::Row row = *iter;
 642                 current_connection = row[XXXX_display_columns.connection];
 643         } else {
 644                 current_connection = 0;
 645         }
 646 }
 647
 648 void
 649 ConnectionEditor::new_connection (bool for_input)
 650 {
 651         string name;
 652
 653         if (session == 0) {
 654                 return;
 655         }
 656
 657         ArdourPrompter prompter (true);
 658         prompter.set_prompt (_("Name for new connection:"));
 659         prompter.done.connect (Gtk::Main::quit.slot());
 660
 661         switch (prompter.run()) {
 662         case Gtk::RESPONSE_ACCEPT:
 663                 prompter.get_result (name);
 664                 push_at_front = true;
 665                 if (name.length()) {
 666                         if (for_input) {
 667                                 session->add_connection (new ARDOUR::InputConnection (name));
 668                         } else {
 669                                 session->add_connection (new ARDOUR::OutputConnection (name));
 670                         }
 671                 }
 672                 push_at_front = false;
 673                 break;
 674
 675         default:
 676                 break;
 677         }
 678 }
 679
 680 void
 681 ConnectionEditor::delete_connection ()
 682 {
 683         if (session && current_connection) {
 684                 session->remove_connection (current_connection);
 685                 current_connection = 0;
 686         }
 687 }
 688
 689 gint
 690 ConnectionEditor::port_button_event (GdkEventButton *ev, Treeview* treeview)
 691 {
 692         int row, col;
 693         TreeIter iter;
 694         TreeModel::Path path;
 695         TreeViewColumn* column;
 696         int cellx;
 697         int celly;
 698
 699         if (current_connection == 0) {
 700                 return false;
 701         }
 702
 703         if (!(Keyboard::is_delete_event (ev))) {
 704                 return false;
 705         }
 706
 707         if (!treeview->get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
 708                 return false;
 709         }
 710
 711         if ((iter = treeview->get_model()->get_iter (path))) {
 712                 /* path is valid */
 713
 714                 string port_name = (*iter)[columns.full_name];
 715                 int which_port = (intptr_t) treeview->get_data ("port");
 716
 717                 current_connection->remove_connection (which_port, port_name);
 718         }
 719
 720         return true;
 721 }