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     $Id$
  19 */
  20
  21 #include <map>
  22 #include <vector>
  23
  24 #include <sigc++/bind.h>
  25
  26 #include <gtkmm/messagedialog.h>
  27
  28 #include <glibmm/thread.h>
  29
  30 #include <ardour/io.h>
  31 #include <ardour/route.h>
  32 #include <ardour/audioengine.h>
  33 #include <ardour/port.h>
  34 #include <ardour/insert.h>
  35 #include <ardour/session.h>
  36 #include <ardour/audio_diskstream.h>
  37
  38 #include <gtkmm2ext/doi.h>
  39 #include <gtkmm2ext/gtk_ui.h>
  40 #include <gtkmm2ext/utils.h>
  41
  42 #include "utils.h"
  43 #include "io_selector.h"
  44 #include "keyboard.h"
  45 #include "gui_thread.h"
  46
  47 #include "i18n.h"
  48
  49 using namespace std;
  50 using namespace Gtk;
  51 using namespace Glib;
  52 using namespace sigc;
  53 using namespace ARDOUR;
  54 using namespace PBD;
  55 using namespace Gtkmm2ext;
  56
  57 IOSelectorWindow::IOSelectorWindow (Session& sess, boost::shared_ptr<IO> ior, bool input, bool can_cancel)
  58         : ArdourDialog ("i/o selector"),
  59           _selector (sess, ior, input),
  60           ok_button (can_cancel ? _("OK"): _("Close")),
  61           cancel_button (_("Cancel")),
  62           rescan_button (_("Rescan"))
  63
  64 {
  65         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
  66         set_name ("IOSelectorWindow");
  67
  68         string title;
  69         if (input) {
  70                 title = string_compose(_("%1 input"), ior->name());
  71         } else {
  72                 title = string_compose(_("%1 output"), ior->name());
  73         }
  74
  75         ok_button.set_name ("IOSelectorButton");
  76         cancel_button.set_name ("IOSelectorButton");
  77         rescan_button.set_name ("IOSelectorButton");
  78
  79         button_box.set_spacing (5);
  80         button_box.set_border_width (5);
  81         button_box.set_homogeneous (true);
  82         button_box.pack_start (rescan_button);
  83
  84         if (can_cancel) {
  85                 button_box.pack_start (cancel_button);
  86         } else {
  87                 cancel_button.hide();
  88         }
  89
  90         button_box.pack_start (ok_button);
  91
  92         get_vbox()->pack_start (_selector);
  93         get_vbox()->pack_start (button_box, false, false);
  94
  95         ok_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::accept));
  96         cancel_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::cancel));
  97         rescan_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::rescan));
  98
  99         set_title (title);
 100         set_position (WIN_POS_MOUSE);
 101
 102         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 103 }
 104
 105 IOSelectorWindow::~IOSelectorWindow()
 106 {
 107 }
 108
 109 void
 110 IOSelectorWindow::rescan ()
 111 {
 112         _selector.redisplay ();
 113 }
 114
 115 void
 116 IOSelectorWindow::cancel ()
 117 {
 118         _selector.Finished(IOSelector::Cancelled);
 119         hide ();
 120 }
 121
 122 void
 123 IOSelectorWindow::accept ()
 124 {
 125         _selector.Finished(IOSelector::Accepted);
 126         hide ();
 127 }
 128
 129 void
 130 IOSelectorWindow::on_map ()
 131 {
 132         _selector.redisplay ();
 133         Window::on_map ();
 134 }
 135
 136 /*************************
 137   The IO Selector "widget"
 138  *************************/
 139
 140 IOSelector::IOSelector (Session& sess, boost::shared_ptr<IO> ior, bool input)
 141         : session (sess),
 142           io (ior),
 143           for_input (input),
 144           port_frame (for_input? _("Inputs") : _("Outputs")),
 145           add_port_button (for_input? _("Add Input") : _("Add Output")),
 146           remove_port_button (for_input? _("Remove Input") : _("Remove Output")),
 147           clear_connections_button (_("Disconnect All"))
 148 {
 149         selected_port = 0;
 150
 151         notebook.set_name ("IOSelectorNotebook");
 152         notebook.set_size_request (-1, 125);
 153
 154         clear_connections_button.set_name ("IOSelectorButton");
 155         add_port_button.set_name ("IOSelectorButton");
 156         remove_port_button.set_name ("IOSelectorButton");
 157
 158         selector_frame.set_name ("IOSelectorFrame");
 159         port_frame.set_name ("IOSelectorFrame");
 160
 161         selector_frame.set_label (_("Available connections"));
 162
 163         selector_button_box.set_spacing (5);
 164         selector_button_box.set_border_width (5);
 165
 166         selector_box.set_spacing (5);
 167         selector_box.set_border_width (5);
 168         selector_box.pack_start (notebook);
 169         selector_box.pack_start (selector_button_box, false, false);
 170
 171         selector_frame.add (selector_box);
 172
 173         port_box.set_spacing (5);
 174         port_box.set_border_width (5);
 175
 176         port_display_scroller.set_name ("IOSelectorNotebook");
 177         port_display_scroller.set_border_width (0);
 178         port_display_scroller.set_size_request (-1, 170);
 179         port_display_scroller.add (port_box);
 180         port_display_scroller.set_policy (POLICY_NEVER,
 181                                           POLICY_AUTOMATIC);
 182
 183         port_button_box.set_spacing (5);
 184         port_button_box.set_border_width (5);
 185
 186         port_button_box.pack_start (add_port_button, false, false);
 187         port_button_box.pack_start (remove_port_button, false, false);
 188         port_button_box.pack_start (clear_connections_button, false, false);
 189
 190         port_and_button_box.set_border_width (5);
 191         port_and_button_box.pack_start (port_button_box, false, false);
 192         port_and_button_box.pack_start (port_display_scroller);
 193
 194         port_frame.add (port_and_button_box);
 195
 196         port_and_selector_box.set_spacing (5);
 197         port_and_selector_box.pack_start (port_frame);
 198         port_and_selector_box.pack_start (selector_frame);
 199
 200         set_spacing (5);
 201         set_border_width (5);
 202         pack_start (port_and_selector_box);
 203
 204         rescan();
 205         display_ports ();
 206
 207         clear_connections_button.signal_clicked().connect (mem_fun(*this, &IOSelector::clear_connections));
 208
 209         add_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::add_port));
 210         remove_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::remove_port));
 211
 212         if (for_input) {
 213                 io->input_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 214         } else {
 215                 io->output_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 216         }
 217
 218         io->name_changed.connect (mem_fun(*this, &IOSelector::name_changed));
 219 }
 220
 221 IOSelector::~IOSelector ()
 222 {
 223 }
 224
 225 void
 226 IOSelector::set_button_sensitivity ()
 227 {
 228         if (for_input) {
 229
 230                 if (io->input_maximum() < 0 || io->input_maximum() > (int) io->n_inputs()) {
 231                         add_port_button.set_sensitive (true);
 232                 } else {
 233                         add_port_button.set_sensitive (false);
 234                 }
 235
 236         } else {
 237
 238                 if (io->output_maximum() < 0 || io->output_maximum() > (int) io->n_outputs()) {
 239                         add_port_button.set_sensitive (true);
 240                 } else {
 241                         add_port_button.set_sensitive (false);
 242                 }
 243
 244         }
 245
 246         if (for_input) {
 247                 if (io->n_inputs() && (io->input_minimum() < 0 || io->input_minimum() < (int) io->n_inputs())) {
 248                         remove_port_button.set_sensitive (true);
 249                 } else {
 250                         remove_port_button.set_sensitive (false);
 251                 }
 252
 253         } else {
 254                 if (io->n_outputs() && (io->output_minimum() < 0 || io->output_minimum() < (int) io->n_outputs())) {
 255                         remove_port_button.set_sensitive (true);
 256                 } else {
 257                         remove_port_button.set_sensitive (false);
 258                 }
 259         }
 260 }
 261
 262
 263 void
 264 IOSelector::name_changed (void* src)
 265 {
 266         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::name_changed), src));
 267
 268         display_ports ();
 269 }
 270
 271 void
 272 IOSelector::clear_connections ()
 273 {
 274         if (for_input) {
 275                 io->disconnect_inputs (this);
 276         } else {
 277                 io->disconnect_outputs (this);
 278         }
 279 }
 280
 281 void
 282 IOSelector::rescan ()
 283 {
 284         using namespace Notebook_Helpers;
 285
 286         typedef std::map<string,vector<pair<string,string> > > PortMap;
 287         PortMap portmap;
 288         const char **ports;
 289         PageList& pages = notebook.pages();
 290         gint current_page;
 291         vector<string> rowdata;
 292
 293         page_selection_connection.disconnect ();
 294
 295         current_page = notebook.get_current_page ();
 296
 297         pages.clear ();
 298
 299         /* get relevant current JACK ports */
 300
 301         ports = session.engine().get_ports ("", JACK_DEFAULT_AUDIO_TYPE, for_input ? JackPortIsOutput : JackPortIsInput);
 302
 303         if (ports == 0) {
 304                 return;
 305         }
 306
 307         /* find all the client names and group their ports into a list-by-client */
 308
 309         for (int n = 0; ports[n]; ++n) {
 310
 311                 pair<string,vector<pair<string,string> > > newpair;
 312                 pair<string,string> strpair;
 313                 pair<PortMap::iterator,bool> result;
 314
 315                 string str = ports[n];
 316                 string::size_type pos;
 317                 string portname;
 318
 319                 pos = str.find (':');
 320
 321                 newpair.first = str.substr (0, pos);
 322                 portname = str.substr (pos+1);
 323
 324                 result = portmap.insert (newpair);
 325
 326                 strpair.first = portname;
 327                 strpair.second = str;
 328
 329                 result.first->second.push_back (strpair);
 330         }
 331
 332         PortMap::iterator i;
 333
 334         for (i = portmap.begin(); i != portmap.end(); ++i) {
 335
 336                 Box *client_box = manage (new VBox);
 337                 TreeView *display = manage (new TreeView);
 338                 RefPtr<ListStore> model = ListStore::create (port_display_columns);
 339                 ScrolledWindow *scroller = manage (new ScrolledWindow);
 340
 341                 display->set_model (model);
 342                 display->append_column (X_("notvisible"), port_display_columns.displayed_name);
 343                 display->set_headers_visible (false);
 344                 display->get_selection()->set_mode (SELECTION_SINGLE);
 345                 display->set_name ("IOSelectorList");
 346
 347                 for (vector<pair<string,string> >::iterator s = i->second.begin(); s != i->second.end(); ++s) {
 348
 349                         TreeModel::Row row = *(model->append ());
 350
 351                         row[port_display_columns.displayed_name] = s->first;
 352                         row[port_display_columns.full_name] = s->second;
 353                 }
 354
 355                 display->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::port_selection_changed), display));
 356                 Label *tab_label = manage (new Label);
 357
 358                 tab_label->set_name ("IOSelectorNotebookTab");
 359                 tab_label->set_text ((*i).first);
 360
 361                 scroller->add (*display);
 362                 scroller->set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 363
 364                 client_box->pack_start (*scroller);
 365
 366                 pages.push_back (TabElem (*client_box, *tab_label));
 367         }
 368
 369         notebook.set_current_page (current_page);
 370         page_selection_connection = notebook.signal_show().connect (bind (mem_fun (notebook, &Notebook::set_current_page), current_page));
 371         selector_box.show_all ();
 372 }
 373
 374 void
 375 IOSelector::display_ports ()
 376 {
 377         TreeView *firsttview = 0;
 378         TreeView *selected_port_tview = 0;
 379         {
 380                 Glib::Mutex::Lock lm  (port_display_lock);
 381                 Port *port;
 382                 uint32_t limit;
 383
 384                 if (for_input) {
 385                         limit = io->n_inputs();
 386                 } else {
 387                         limit = io->n_outputs();
 388                 }
 389
 390                 for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ) {
 391
 392                         slist<TreeView *>::iterator tmp;
 393
 394                         tmp = i;
 395                         ++tmp;
 396
 397                         port_box.remove (**i);
 398                         delete *i;
 399                         port_displays.erase (i);
 400
 401                         i = tmp;
 402                 }
 403
 404                 for (uint32_t n = 0; n < limit; ++n) {
 405
 406                         TreeView* tview;
 407                         //ScrolledWindow *scroller;
 408                         string really_short_name;
 409
 410                         if (for_input) {
 411                                 port = io->input (n);
 412                         } else {
 413                                 port = io->output (n);
 414                         }
 415
 416                         /* we know there is '/' because we put it there */
 417
 418                         really_short_name = port->short_name();
 419                         really_short_name = really_short_name.substr (really_short_name.find ('/') + 1);
 420
 421                         tview = manage (new TreeView());
 422                         RefPtr<ListStore> port_model = ListStore::create (port_display_columns);
 423
 424                         if (!firsttview) {
 425                                 firsttview = tview;
 426                         }
 427
 428                         tview->set_model (port_model);
 429                         tview->append_column (really_short_name, port_display_columns.displayed_name);
 430                         tview->get_selection()->set_mode (SELECTION_SINGLE);
 431                         tview->set_data (X_("port"), port);
 432                         tview->set_headers_visible (true);
 433                         tview->set_name (X_("IOSelectorPortList"));
 434
 435                         port_box.pack_start (*tview);
 436                         port_displays.insert (port_displays.end(), tview);
 437
 438                         /* now fill the clist with the current connections */
 439
 440
 441                         const char **connections = port->get_connections ();
 442
 443                         if (connections) {
 444                                 for (uint32_t c = 0; connections[c]; ++c) {
 445                                         TreeModel::Row row = *(port_model->append());
 446                                         row[port_display_columns.displayed_name] = connections[c];
 447                                         row[port_display_columns.full_name] = connections[c];
 448                                 }
 449                         }
 450
 451                         if (for_input) {
 452
 453                                 if (io->input_maximum() == 1) {
 454                                         selected_port = port;
 455                                         selected_port_tview = tview;
 456                                 } else {
 457                                         if (port == selected_port) {
 458                                                 selected_port_tview = tview;
 459                                         }
 460                                 }
 461
 462                         } else {
 463
 464                                 if (io->output_maximum() == 1) {
 465                                         selected_port = port;
 466                                         selected_port_tview = tview;
 467                                 } else {
 468                                         if (port == selected_port) {
 469                                                 selected_port_tview = tview;
 470                                         }
 471                                 }
 472                         }
 473
 474                         TreeViewColumn* col = tview->get_column (0);
 475
 476                         col->set_clickable (true);
 477
 478                         /* handle button events on the column header ... */
 479                         col->signal_clicked().connect (bind (mem_fun(*this, &IOSelector::select_treeview), tview));
 480
 481                         /* ... and within the treeview itself */
 482                         tview->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::connection_button_release), tview));
 483                 }
 484
 485                 port_box.show_all ();
 486         }
 487
 488         if (!selected_port_tview) {
 489                 selected_port_tview = firsttview;
 490         }
 491
 492         if (selected_port_tview) {
 493                 select_treeview (selected_port_tview);
 494         }
 495 }
 496
 497 bool
 498 IOSelector::port_selection_changed (GdkEventButton *ev, TreeView* treeview)
 499 {
 500         TreeModel::iterator i = treeview->get_selection()->get_selected();
 501         int status;
 502
 503         if (!i) {
 504                 return 0;
 505         }
 506
 507         if (selected_port == 0) {
 508                 return 0;
 509         }
 510
 511         ustring other_port_name = (*i)[port_display_columns.full_name];
 512
 513         if (for_input) {
 514                 if ((status = io->connect_input (selected_port, other_port_name, this)) == 0) {
 515                         Port *p = session.engine().get_port_by_name (other_port_name);
 516                         p->enable_metering();
 517                 }
 518         } else {
 519                 status = io->connect_output (selected_port, other_port_name, this);
 520         }
 521
 522         if (status == 0) {
 523                 select_next_treeview ();
 524         }
 525
 526         treeview->get_selection()->unselect_all();
 527         return 0;
 528 }
 529
 530 void
 531 IOSelector::ports_changed (IOChange change, void *src)
 532 {
 533         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::ports_changed), change, src));
 534
 535         display_ports ();
 536 }
 537
 538 void
 539 IOSelector::add_port ()
 540 {
 541         /* add a new port, then hide the button if we're up to the maximum allowed */
 542
 543         if (for_input) {
 544
 545                 try {
 546                         io->add_input_port ("", this);
 547                 }
 548
 549                 catch (AudioEngine::PortRegistrationFailure& err) {
 550                         MessageDialog msg (0,  _("There are no more JACK ports available."));
 551                         msg.run ();
 552                 }
 553
 554         } else {
 555
 556                 try {
 557                         io->add_output_port ("", this);
 558                 }
 559
 560                 catch (AudioEngine::PortRegistrationFailure& err) {
 561                         MessageDialog msg (0, _("There are no more JACK ports available."));
 562                         msg.run ();
 563                 }
 564         }
 565
 566         set_button_sensitivity ();
 567 }
 568
 569 void
 570 IOSelector::remove_port ()
 571 {
 572         uint32_t nports;
 573
 574         // always remove last port
 575
 576         if (for_input) {
 577                 if ((nports = io->n_inputs()) > 0) {
 578                         io->remove_input_port (io->input(nports-1), this);
 579                 }
 580
 581         } else {
 582                 if ((nports = io->n_outputs()) > 0) {
 583                         io->remove_output_port (io->output(nports-1), this);
 584                 }
 585         }
 586
 587         set_button_sensitivity ();
 588 }
 589
 590 gint
 591 IOSelector::connection_button_release (GdkEventButton *ev, TreeView *treeview)
 592 {
 593         /* this handles button release on a port name row: i.e. a connection
 594            between the named port and the port represented by the treeview.
 595         */
 596
 597         Gtk::TreeModel::iterator iter;
 598         TreeModel::Path path;
 599         TreeViewColumn* column;
 600         int cellx;
 601         int celly;
 602
 603         /* only handle button1 events here */
 604
 605         if (ev->button != 1) {
 606                 return false;
 607         }
 608
 609         if (!treeview->get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
 610                 return false;
 611         }
 612
 613         if ((iter = treeview->get_model()->get_iter (path.to_string()))) {
 614
 615                 /* path is valid */
 616                 ustring connected_port_name = (*iter)[port_display_columns.full_name];
 617                 Port *port = reinterpret_cast<Port *> (treeview->get_data (X_("port")));
 618
 619                 if (for_input) {
 620                         Port *p = session.engine().get_port_by_name (connected_port_name);
 621                         p->disable_metering();
 622                         io->disconnect_input (port, connected_port_name, this);
 623                 } else {
 624                         io->disconnect_output (port, connected_port_name, this);
 625                 }
 626         }
 627
 628         return true;
 629 }
 630
 631 void
 632 IOSelector::select_next_treeview ()
 633 {
 634         slist<TreeView*>::iterator next;
 635
 636         if (port_displays.empty() || port_displays.size() == 1) {
 637                 return;
 638         }
 639
 640         for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 641
 642                 if ((*i)->get_name() == "IOSelectorPortListSelected") {
 643
 644                         ++i;
 645
 646                         if (i == port_displays.end()) {
 647                                 select_treeview (port_displays.front());
 648                         } else {
 649                                 select_treeview (*i);
 650                         }
 651
 652                         break;
 653                 }
 654         }
 655 }
 656
 657 void
 658 IOSelector::select_treeview (TreeView* tview)
 659 {
 660         /* Gack. TreeView's don't respond visually to a change
 661            in their state, so rename them to force a style
 662            switch.
 663         */
 664
 665         Glib::Mutex::Lock lm  (port_display_lock);
 666         Port* port = reinterpret_cast<Port *> (tview->get_data (X_("port")));
 667
 668         selected_port = port;
 669
 670         tview->set_name ("IOSelectorPortListSelected");
 671         tview->queue_draw ();
 672
 673         /* ugly hack to force the column header button to change as well */
 674
 675         TreeViewColumn* col = tview->get_column (0);
 676         GtkTreeViewColumn* ccol = col->gobj();
 677
 678         if (ccol->button) {
 679                 gtk_widget_set_name (ccol->button, "IOSelectorPortListSelected");
 680                 gtk_widget_queue_draw (ccol->button);
 681         }
 682
 683         for (slist<TreeView*>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 684                 if (*i == tview) {
 685                         continue;
 686                 }
 687
 688                 col = (*i)->get_column (0);
 689                 ccol = col->gobj();
 690
 691                 if (ccol->button) {
 692                         gtk_widget_set_name (ccol->button, "IOSelectorPortList");
 693                         gtk_widget_queue_draw (ccol->button);
 694                 }
 695
 696                 (*i)->set_name ("IOSelectorPortList");
 697                 (*i)->queue_draw ();
 698         }
 699
 700         selector_box.show_all ();
 701 }
 702
 703 void
 704 IOSelector::redisplay ()
 705 {
 706         display_ports ();
 707
 708         if (for_input) {
 709                 if (io->input_maximum() != 0) {
 710                         rescan ();
 711                 }
 712         } else {
 713                 if (io->output_maximum() != 0) {
 714                         rescan();
 715                 }
 716         }
 717 }
 718
 719 PortInsertUI::PortInsertUI (Session& sess, boost::shared_ptr<PortInsert> pi)
 720         : input_selector (sess, pi, true),
 721           output_selector (sess, pi, false)
 722 {
 723         hbox.pack_start (output_selector, true, true);
 724         hbox.pack_start (input_selector, true, true);
 725
 726
 727         pack_start (hbox);
 728 }
 729
 730 void
 731 PortInsertUI::redisplay()
 732 {
 733
 734         input_selector.redisplay();
 735         output_selector.redisplay();
 736 }
 737
 738 void
 739 PortInsertUI::finished(IOSelector::Result r)
 740 {
 741         input_selector.Finished (r);
 742         output_selector.Finished (r);
 743 }
 744
 745
 746 PortInsertWindow::PortInsertWindow (Session& sess, boost::shared_ptr<PortInsert> pi, bool can_cancel)
 747         : ArdourDialog ("port insert dialog"),
 748           _portinsertui (sess, pi),
 749           ok_button (can_cancel ? _("OK"): _("Close")),
 750           cancel_button (_("Cancel")),
 751           rescan_button (_("Rescan"))
 752 {
 753
 754         set_name ("IOSelectorWindow");
 755         string title = _("ardour: ");
 756         title += pi->name();
 757         set_title (title);
 758
 759         ok_button.set_name ("IOSelectorButton");
 760         cancel_button.set_name ("IOSelectorButton");
 761         rescan_button.set_name ("IOSelectorButton");
 762
 763         button_box.set_spacing (5);
 764         button_box.set_border_width (5);
 765         button_box.set_homogeneous (true);
 766         button_box.pack_start (rescan_button);
 767         if (can_cancel) {
 768                 button_box.pack_start (cancel_button);
 769         }
 770         else {
 771                 cancel_button.hide();
 772         }
 773         button_box.pack_start (ok_button);
 774
 775         get_vbox()->pack_start (_portinsertui);
 776         get_vbox()->pack_start (button_box, false, false);
 777
 778         ok_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::accept));
 779         cancel_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::cancel));
 780         rescan_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::rescan));
 781
 782         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 783         pi->GoingAway.connect (mem_fun(*this, &PortInsertWindow::plugin_going_away));
 784 }
 785
 786 void
 787 PortInsertWindow::plugin_going_away ()
 788 {
 789         ENSURE_GUI_THREAD(mem_fun(*this, &PortInsertWindow::plugin_going_away));
 790
 791         delete_when_idle (this);
 792 }
 793
 794 void
 795 PortInsertWindow::on_map ()
 796 {
 797         _portinsertui.redisplay ();
 798         Window::on_map ();
 799 }
 800
 801
 802 void
 803 PortInsertWindow::rescan ()
 804 {
 805         _portinsertui.redisplay();
 806 }
 807
 808 void
 809 PortInsertWindow::cancel ()
 810 {
 811         _portinsertui.finished(IOSelector::Cancelled);
 812         hide ();
 813 }
 814
 815 void
 816 PortInsertWindow::accept ()
 817 {
 818         _portinsertui.finished(IOSelector::Accepted);
 819         hide ();
 820 }