gtk2_ardour/io_selector.cc

   1 /*
   2     Copyright (C) 2002-2003 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 <map>
  21 #include <vector>
  22
  23 #include <sigc++/bind.h>
  24
  25 #include <gtkmm/messagedialog.h>
  26
  27 #include <glibmm/thread.h>
  28
  29 #include <ardour/io.h>
  30 #include <ardour/route.h>
  31 #include <ardour/audioengine.h>
  32 #include <ardour/port.h>
  33 #include <ardour/insert.h>
  34 #include <ardour/session.h>
  35 #include <ardour/audio_diskstream.h>
  36
  37 #include <gtkmm2ext/doi.h>
  38 #include <gtkmm2ext/gtk_ui.h>
  39 #include <gtkmm2ext/utils.h>
  40
  41 #include "utils.h"
  42 #include "io_selector.h"
  43 #include "keyboard.h"
  44 #include "gui_thread.h"
  45
  46 #include "i18n.h"
  47
  48 using namespace std;
  49 using namespace Gtk;
  50 using namespace Glib;
  51 using namespace sigc;
  52 using namespace ARDOUR;
  53 using namespace PBD;
  54 using namespace Gtkmm2ext;
  55
  56 IOSelectorWindow::IOSelectorWindow (Session& sess, boost::shared_ptr<IO> ior, bool input, bool can_cancel)
  57         : ArdourDialog ("i/o selector"),
  58           _selector (sess, ior, input),
  59           ok_button (can_cancel ? _("OK"): _("Close")),
  60           cancel_button (_("Cancel")),
  61           rescan_button (_("Rescan"))
  62
  63 {
  64         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
  65         set_name ("IOSelectorWindow");
  66
  67         string title;
  68         if (input) {
  69                 title = string_compose(_("%1 input"), ior->name());
  70         } else {
  71                 title = string_compose(_("%1 output"), ior->name());
  72         }
  73
  74         ok_button.set_name ("IOSelectorButton");
  75         cancel_button.set_name ("IOSelectorButton");
  76         rescan_button.set_name ("IOSelectorButton");
  77
  78         button_box.set_spacing (5);
  79         button_box.set_border_width (5);
  80         button_box.set_homogeneous (true);
  81         button_box.pack_start (rescan_button);
  82
  83         if (can_cancel) {
  84                 button_box.pack_start (cancel_button);
  85         } else {
  86                 cancel_button.hide();
  87         }
  88
  89         button_box.pack_start (ok_button);
  90
  91         get_vbox()->pack_start (_selector);
  92         get_vbox()->pack_start (button_box, false, false);
  93
  94         ok_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::accept));
  95         cancel_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::cancel));
  96         rescan_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::rescan));
  97
  98         set_title (title);
  99         set_position (WIN_POS_MOUSE);
 100
 101         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 102 }
 103
 104 IOSelectorWindow::~IOSelectorWindow()
 105 {
 106 }
 107
 108 void
 109 IOSelectorWindow::rescan ()
 110 {
 111         _selector.redisplay ();
 112 }
 113
 114 void
 115 IOSelectorWindow::cancel ()
 116 {
 117         _selector.Finished(IOSelector::Cancelled);
 118         hide ();
 119 }
 120
 121 void
 122 IOSelectorWindow::accept ()
 123 {
 124         _selector.Finished(IOSelector::Accepted);
 125         hide ();
 126 }
 127
 128 void
 129 IOSelectorWindow::on_map ()
 130 {
 131         _selector.redisplay ();
 132         Window::on_map ();
 133 }
 134
 135 /*************************
 136   The IO Selector "widget"
 137  *************************/
 138
 139 IOSelector::IOSelector (Session& sess, boost::shared_ptr<IO> ior, bool input)
 140         : session (sess),
 141           io (ior),
 142           for_input (input),
 143           port_frame (for_input? _("Inputs") : _("Outputs")),
 144           add_port_button (for_input? _("Add Input") : _("Add Output")),
 145           remove_port_button (for_input? _("Remove Input") : _("Remove Output")),
 146           clear_connections_button (_("Disconnect All"))
 147 {
 148         selected_port = 0;
 149
 150         notebook.set_name ("IOSelectorNotebook");
 151         notebook.set_size_request (-1, 125);
 152
 153         clear_connections_button.set_name ("IOSelectorButton");
 154         add_port_button.set_name ("IOSelectorButton");
 155         remove_port_button.set_name ("IOSelectorButton");
 156
 157         selector_frame.set_name ("IOSelectorFrame");
 158         port_frame.set_name ("IOSelectorFrame");
 159
 160         selector_frame.set_label (_("Available connections"));
 161
 162         selector_button_box.set_spacing (5);
 163         selector_button_box.set_border_width (5);
 164
 165         selector_box.set_spacing (5);
 166         selector_box.set_border_width (5);
 167         selector_box.pack_start (notebook);
 168         selector_box.pack_start (selector_button_box, false, false);
 169
 170         selector_frame.add (selector_box);
 171
 172         port_box.set_spacing (5);
 173         port_box.set_border_width (5);
 174
 175         port_display_scroller.set_name ("IOSelectorNotebook");
 176         port_display_scroller.set_border_width (0);
 177         port_display_scroller.set_size_request (-1, 170);
 178         port_display_scroller.add (port_box);
 179         port_display_scroller.set_policy (POLICY_NEVER,
 180                                           POLICY_AUTOMATIC);
 181
 182         port_button_box.set_spacing (5);
 183         port_button_box.set_border_width (5);
 184
 185         port_button_box.pack_start (add_port_button, false, false);
 186         port_button_box.pack_start (remove_port_button, false, false);
 187         port_button_box.pack_start (clear_connections_button, false, false);
 188
 189         port_and_button_box.set_border_width (5);
 190         port_and_button_box.pack_start (port_button_box, false, false);
 191         port_and_button_box.pack_start (port_display_scroller);
 192
 193         port_frame.add (port_and_button_box);
 194
 195         port_and_selector_box.set_spacing (5);
 196         port_and_selector_box.pack_start (port_frame);
 197         port_and_selector_box.pack_start (selector_frame);
 198
 199         set_spacing (5);
 200         set_border_width (5);
 201         pack_start (port_and_selector_box);
 202
 203         rescan();
 204         display_ports ();
 205
 206         clear_connections_button.signal_clicked().connect (mem_fun(*this, &IOSelector::clear_connections));
 207
 208         add_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::add_port));
 209         remove_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::remove_port));
 210
 211         if (for_input) {
 212                 io->input_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 213         } else {
 214                 io->output_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 215         }
 216
 217         io->name_changed.connect (mem_fun(*this, &IOSelector::name_changed));
 218 }
 219
 220 IOSelector::~IOSelector ()
 221 {
 222 }
 223
 224 void
 225 IOSelector::set_button_sensitivity ()
 226 {
 227         if (for_input) {
 228
 229                 if (io->input_maximum() < 0 || io->input_maximum() > (int) io->n_inputs()) {
 230                         add_port_button.set_sensitive (true);
 231                 } else {
 232                         add_port_button.set_sensitive (false);
 233                 }
 234
 235         } else {
 236
 237                 if (io->output_maximum() < 0 || io->output_maximum() > (int) io->n_outputs()) {
 238                         add_port_button.set_sensitive (true);
 239                 } else {
 240                         add_port_button.set_sensitive (false);
 241                 }
 242
 243         }
 244
 245         if (for_input) {
 246                 if (io->n_inputs() && (io->input_minimum() < 0 || io->input_minimum() < (int) io->n_inputs())) {
 247                         remove_port_button.set_sensitive (true);
 248                 } else {
 249                         remove_port_button.set_sensitive (false);
 250                 }
 251
 252         } else {
 253                 if (io->n_outputs() && (io->output_minimum() < 0 || io->output_minimum() < (int) io->n_outputs())) {
 254                         remove_port_button.set_sensitive (true);
 255                 } else {
 256                         remove_port_button.set_sensitive (false);
 257                 }
 258         }
 259 }
 260
 261
 262 void
 263 IOSelector::name_changed (void* src)
 264 {
 265         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::name_changed), src));
 266
 267         display_ports ();
 268 }
 269
 270 void
 271 IOSelector::clear_connections ()
 272 {
 273         if (for_input) {
 274                 io->disconnect_inputs (this);
 275         } else {
 276                 io->disconnect_outputs (this);
 277         }
 278 }
 279
 280 void
 281 IOSelector::rescan ()
 282 {
 283         using namespace Notebook_Helpers;
 284
 285         typedef std::map<string,vector<pair<string,string> > > PortMap;
 286         PortMap portmap;
 287         const char **ports;
 288         PageList& pages = notebook.pages();
 289         gint current_page;
 290         vector<string> rowdata;
 291
 292         page_selection_connection.disconnect ();
 293
 294         current_page = notebook.get_current_page ();
 295
 296         pages.clear ();
 297
 298         /* get relevant current JACK ports */
 299
 300         ports = session.engine().get_ports ("", JACK_DEFAULT_AUDIO_TYPE, for_input ? JackPortIsOutput : JackPortIsInput);
 301
 302         if (ports == 0) {
 303                 return;
 304         }
 305
 306         /* find all the client names and group their ports into a list-by-client */
 307
 308         for (int n = 0; ports[n]; ++n) {
 309
 310                 pair<string,vector<pair<string,string> > > newpair;
 311                 pair<string,string> strpair;
 312                 pair<PortMap::iterator,bool> result;
 313
 314                 string str = ports[n];
 315                 string::size_type pos;
 316                 string portname;
 317
 318                 pos = str.find (':');
 319
 320                 newpair.first = str.substr (0, pos);
 321                 portname = str.substr (pos+1);
 322
 323                 result = portmap.insert (newpair);
 324
 325                 strpair.first = portname;
 326                 strpair.second = str;
 327
 328                 result.first->second.push_back (strpair);
 329         }
 330
 331         PortMap::iterator i;
 332
 333         for (i = portmap.begin(); i != portmap.end(); ++i) {
 334
 335                 Box *client_box = manage (new VBox);
 336                 TreeView *display = manage (new TreeView);
 337                 RefPtr<ListStore> model = ListStore::create (port_display_columns);
 338                 ScrolledWindow *scroller = manage (new ScrolledWindow);
 339
 340                 display->set_model (model);
 341                 display->append_column (X_("notvisible"), port_display_columns.displayed_name);
 342                 display->set_headers_visible (false);
 343                 display->get_selection()->set_mode (SELECTION_SINGLE);
 344                 display->set_name ("IOSelectorList");
 345
 346                 for (vector<pair<string,string> >::iterator s = i->second.begin(); s != i->second.end(); ++s) {
 347
 348                         TreeModel::Row row = *(model->append ());
 349
 350                         row[port_display_columns.displayed_name] = s->first;
 351                         row[port_display_columns.full_name] = s->second;
 352                 }
 353
 354                 display->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::port_selection_changed), display));
 355                 Label *tab_label = manage (new Label);
 356
 357                 tab_label->set_name ("IOSelectorNotebookTab");
 358                 tab_label->set_text ((*i).first);
 359
 360                 scroller->add (*display);
 361                 scroller->set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 362
 363                 client_box->pack_start (*scroller);
 364
 365                 pages.push_back (TabElem (*client_box, *tab_label));
 366         }
 367
 368         notebook.set_current_page (current_page);
 369         page_selection_connection = notebook.signal_show().connect (bind (mem_fun (notebook, &Notebook::set_current_page), current_page));
 370         selector_box.show_all ();
 371 }
 372
 373 void
 374 IOSelector::display_ports ()
 375 {
 376         TreeView *firsttview = 0;
 377         TreeView *selected_port_tview = 0;
 378         {
 379                 Glib::Mutex::Lock lm  (port_display_lock);
 380                 Port *port;
 381                 uint32_t limit;
 382
 383                 if (for_input) {
 384                         limit = io->n_inputs();
 385                 } else {
 386                         limit = io->n_outputs();
 387                 }
 388
 389                 for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ) {
 390
 391                         slist<TreeView *>::iterator tmp;
 392
 393                         tmp = i;
 394                         ++tmp;
 395
 396                         port_box.remove (**i);
 397                         delete *i;
 398                         port_displays.erase (i);
 399
 400                         i = tmp;
 401                 }
 402
 403                 for (uint32_t n = 0; n < limit; ++n) {
 404
 405                         TreeView* tview;
 406                         //ScrolledWindow *scroller;
 407                         string really_short_name;
 408
 409                         if (for_input) {
 410                                 port = io->input (n);
 411                         } else {
 412                                 port = io->output (n);
 413                         }
 414
 415                         /* we know there is '/' because we put it there */
 416
 417                         really_short_name = port->short_name();
 418                         really_short_name = really_short_name.substr (really_short_name.find ('/') + 1);
 419
 420                         tview = manage (new TreeView());
 421                         RefPtr<ListStore> port_model = ListStore::create (port_display_columns);
 422
 423                         if (!firsttview) {
 424                                 firsttview = tview;
 425                         }
 426
 427                         tview->set_model (port_model);
 428                         tview->append_column (really_short_name, port_display_columns.displayed_name);
 429                         tview->get_selection()->set_mode (SELECTION_SINGLE);
 430                         tview->set_data (X_("port"), port);
 431                         tview->set_headers_visible (true);
 432                         tview->set_name (X_("IOSelectorPortList"));
 433
 434                         port_box.pack_start (*tview);
 435                         port_displays.insert (port_displays.end(), tview);
 436
 437                         /* now fill the clist with the current connections */
 438
 439                         const char **connections = port->get_connections ();
 440
 441                         if (connections) {
 442                                 for (uint32_t c = 0; connections[c]; ++c) {
 443                                         TreeModel::Row row = *(port_model->append());
 444                                         row[port_display_columns.displayed_name] = connections[c];
 445                                         row[port_display_columns.full_name] = connections[c];
 446                                 }
 447                         }
 448
 449                         if (for_input) {
 450
 451                                 if (io->input_maximum() == 1) {
 452                                         selected_port = port;
 453                                         selected_port_tview = tview;
 454                                 } else {
 455                                         if (port == selected_port) {
 456                                                 selected_port_tview = tview;
 457                                         }
 458                                 }
 459
 460                         } else {
 461
 462                                 if (io->output_maximum() == 1) {
 463                                         selected_port = port;
 464                                         selected_port_tview = tview;
 465                                 } else {
 466                                         if (port == selected_port) {
 467                                                 selected_port_tview = tview;
 468                                         }
 469                                 }
 470                         }
 471
 472                         TreeViewColumn* col = tview->get_column (0);
 473
 474                         col->set_clickable (true);
 475
 476                         /* handle button events on the column header ... */
 477                         col->signal_clicked().connect (bind (mem_fun(*this, &IOSelector::select_treeview), tview));
 478
 479                         /* ... and within the treeview itself */
 480                         tview->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::connection_button_release), tview));
 481                 }
 482
 483                 port_box.show_all ();
 484         }
 485
 486         if (!selected_port_tview) {
 487                 selected_port_tview = firsttview;
 488         }
 489
 490         if (selected_port_tview) {
 491                 select_treeview (selected_port_tview);
 492         }
 493 }
 494
 495 bool
 496 IOSelector::port_selection_changed (GdkEventButton *ev, TreeView* treeview)
 497 {
 498         TreeModel::iterator i = treeview->get_selection()->get_selected();
 499         int status;
 500
 501         if (!i) {
 502                 return 0;
 503         }
 504
 505         if (selected_port == 0) {
 506                 return 0;
 507         }
 508
 509         ustring other_port_name = (*i)[port_display_columns.full_name];
 510
 511         if (for_input) {
 512                 if ((status = io->connect_input (selected_port, other_port_name, this)) == 0) {
 513                         Port *p = session.engine().get_port_by_name (other_port_name);
 514                         p->enable_metering();
 515                 }
 516         } else {
 517                 status = io->connect_output (selected_port, other_port_name, this);
 518         }
 519
 520         if (status == 0) {
 521                 select_next_treeview ();
 522         }
 523
 524         treeview->get_selection()->unselect_all();
 525         return 0;
 526 }
 527
 528 void
 529 IOSelector::ports_changed (IOChange change, void *src)
 530 {
 531         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::ports_changed), change, src));
 532
 533         display_ports ();
 534 }
 535
 536 void
 537 IOSelector::add_port ()
 538 {
 539         /* add a new port, then hide the button if we're up to the maximum allowed */
 540
 541         if (for_input) {
 542
 543                 try {
 544                         io->add_input_port ("", this);
 545                 }
 546
 547                 catch (AudioEngine::PortRegistrationFailure& err) {
 548                         MessageDialog msg (0,  _("There are no more JACK ports available."));
 549                         msg.run ();
 550                 }
 551
 552         } else {
 553
 554                 try {
 555                         io->add_output_port ("", this);
 556                 }
 557
 558                 catch (AudioEngine::PortRegistrationFailure& err) {
 559                         MessageDialog msg (0, _("There are no more JACK ports available."));
 560                         msg.run ();
 561                 }
 562         }
 563
 564         set_button_sensitivity ();
 565 }
 566
 567 void
 568 IOSelector::remove_port ()
 569 {
 570         uint32_t nports;
 571
 572         // always remove last port
 573
 574         if (for_input) {
 575                 if ((nports = io->n_inputs()) > 0) {
 576                         io->remove_input_port (io->input(nports-1), this);
 577                 }
 578
 579         } else {
 580                 if ((nports = io->n_outputs()) > 0) {
 581                         io->remove_output_port (io->output(nports-1), this);
 582                 }
 583         }
 584
 585         set_button_sensitivity ();
 586 }
 587
 588 gint
 589 IOSelector::connection_button_release (GdkEventButton *ev, TreeView *treeview)
 590 {
 591         /* this handles button release on a port name row: i.e. a connection
 592            between the named port and the port represented by the treeview.
 593         */
 594
 595         Gtk::TreeModel::iterator iter;
 596         TreeModel::Path path;
 597         TreeViewColumn* column;
 598         int cellx;
 599         int celly;
 600
 601         /* only handle button1 events here */
 602
 603         if (ev->button != 1) {
 604                 return false;
 605         }
 606
 607         if (!treeview->get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
 608                 return false;
 609         }
 610
 611         if ((iter = treeview->get_model()->get_iter (path.to_string()))) {
 612
 613                 /* path is valid */
 614                 ustring connected_port_name = (*iter)[port_display_columns.full_name];
 615                 Port *port = reinterpret_cast<Port *> (treeview->get_data (X_("port")));
 616
 617                 if (for_input) {
 618                         Port *p = session.engine().get_port_by_name (connected_port_name);
 619                         p->disable_metering();
 620                         io->disconnect_input (port, connected_port_name, this);
 621                 } else {
 622                         io->disconnect_output (port, connected_port_name, this);
 623                 }
 624         }
 625
 626         return true;
 627 }
 628
 629 void
 630 IOSelector::select_next_treeview ()
 631 {
 632         slist<TreeView*>::iterator next;
 633
 634         if (port_displays.empty() || port_displays.size() == 1) {
 635                 return;
 636         }
 637
 638         for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 639
 640                 if ((*i)->get_name() == "IOSelectorPortListSelected") {
 641
 642                         ++i;
 643
 644                         if (i == port_displays.end()) {
 645                                 select_treeview (port_displays.front());
 646                         } else {
 647                                 select_treeview (*i);
 648                         }
 649
 650                         break;
 651                 }
 652         }
 653 }
 654
 655 void
 656 IOSelector::select_treeview (TreeView* tview)
 657 {
 658         /* Gack. TreeView's don't respond visually to a change
 659            in their state, so rename them to force a style
 660            switch.
 661         */
 662
 663         Glib::Mutex::Lock lm  (port_display_lock);
 664         Port* port = reinterpret_cast<Port *> (tview->get_data (X_("port")));
 665
 666         selected_port = port;
 667
 668         tview->set_name ("IOSelectorPortListSelected");
 669         tview->queue_draw ();
 670
 671         /* ugly hack to force the column header button to change as well */
 672
 673         TreeViewColumn* col = tview->get_column (0);
 674         GtkTreeViewColumn* ccol = col->gobj();
 675
 676         if (ccol->button) {
 677                 gtk_widget_set_name (ccol->button, "IOSelectorPortListSelected");
 678                 gtk_widget_queue_draw (ccol->button);
 679         }
 680
 681         for (slist<TreeView*>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 682                 if (*i == tview) {
 683                         continue;
 684                 }
 685
 686                 col = (*i)->get_column (0);
 687                 ccol = col->gobj();
 688
 689                 if (ccol->button) {
 690                         gtk_widget_set_name (ccol->button, "IOSelectorPortList");
 691                         gtk_widget_queue_draw (ccol->button);
 692                 }
 693
 694                 (*i)->set_name ("IOSelectorPortList");
 695                 (*i)->queue_draw ();
 696         }
 697
 698         selector_box.show_all ();
 699 }
 700
 701 void
 702 IOSelector::redisplay ()
 703 {
 704         display_ports ();
 705
 706         if (for_input) {
 707                 if (io->input_maximum() != 0) {
 708                         rescan ();
 709                 }
 710         } else {
 711                 if (io->output_maximum() != 0) {
 712                         rescan();
 713                 }
 714         }
 715 }
 716
 717 PortInsertUI::PortInsertUI (Session& sess, boost::shared_ptr<PortInsert> pi)
 718         : input_selector (sess, pi, true),
 719           output_selector (sess, pi, false)
 720 {
 721         hbox.pack_start (output_selector, true, true);
 722         hbox.pack_start (input_selector, true, true);
 723
 724
 725         pack_start (hbox);
 726 }
 727
 728 void
 729 PortInsertUI::redisplay()
 730 {
 731
 732         input_selector.redisplay();
 733         output_selector.redisplay();
 734 }
 735
 736 void
 737 PortInsertUI::finished(IOSelector::Result r)
 738 {
 739         input_selector.Finished (r);
 740         output_selector.Finished (r);
 741 }
 742
 743
 744 PortInsertWindow::PortInsertWindow (Session& sess, boost::shared_ptr<PortInsert> pi, bool can_cancel)
 745         : ArdourDialog ("port insert dialog"),
 746           _portinsertui (sess, pi),
 747           ok_button (can_cancel ? _("OK"): _("Close")),
 748           cancel_button (_("Cancel")),
 749           rescan_button (_("Rescan"))
 750 {
 751
 752         set_name ("IOSelectorWindow");
 753         string title = _("ardour: ");
 754         title += pi->name();
 755         set_title (title);
 756
 757         ok_button.set_name ("IOSelectorButton");
 758         cancel_button.set_name ("IOSelectorButton");
 759         rescan_button.set_name ("IOSelectorButton");
 760
 761         button_box.set_spacing (5);
 762         button_box.set_border_width (5);
 763         button_box.set_homogeneous (true);
 764         button_box.pack_start (rescan_button);
 765         if (can_cancel) {
 766                 button_box.pack_start (cancel_button);
 767         }
 768         else {
 769                 cancel_button.hide();
 770         }
 771         button_box.pack_start (ok_button);
 772
 773         get_vbox()->pack_start (_portinsertui);
 774         get_vbox()->pack_start (button_box, false, false);
 775
 776         ok_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::accept));
 777         cancel_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::cancel));
 778         rescan_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::rescan));
 779
 780         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 781
 782         going_away_connection = pi->GoingAway.connect (mem_fun(*this, &PortInsertWindow::plugin_going_away));
 783 }
 784
 785 void
 786 PortInsertWindow::plugin_going_away ()
 787 {
 788         ENSURE_GUI_THREAD(mem_fun(*this, &PortInsertWindow::plugin_going_away));
 789         going_away_connection.disconnect ();
 790         delete_when_idle (this);
 791 }
 792
 793 void
 794 PortInsertWindow::on_map ()
 795 {
 796         _portinsertui.redisplay ();
 797         Window::on_map ();
 798 }
 799
 800
 801 void
 802 PortInsertWindow::rescan ()
 803 {
 804         _portinsertui.redisplay();
 805 }
 806
 807 void
 808 PortInsertWindow::cancel ()
 809 {
 810         _portinsertui.finished(IOSelector::Cancelled);
 811         hide ();
 812 }
 813
 814 void
 815 PortInsertWindow::accept ()
 816 {
 817         _portinsertui.finished(IOSelector::Accepted);
 818         hide ();
 819 }