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         cerr << "clear notebook\n";
 298
 299         pages.clear ();
 300
 301         /* get relevant current JACK ports */
 302
 303         ports = session.engine().get_ports ("", JACK_DEFAULT_AUDIO_TYPE, for_input ? JackPortIsOutput : JackPortIsInput);
 304
 305         if (ports == 0) {
 306                 cerr << "no ports\n";
 307                 return;
 308         }
 309
 310         /* find all the client names and group their ports into a list-by-client */
 311
 312         for (int n = 0; ports[n]; ++n) {
 313
 314                 pair<string,vector<pair<string,string> > > newpair;
 315                 pair<string,string> strpair;
 316                 pair<PortMap::iterator,bool> result;
 317
 318                 string str = ports[n];
 319                 string::size_type pos;
 320                 string portname;
 321
 322                 pos = str.find (':');
 323
 324                 newpair.first = str.substr (0, pos);
 325                 portname = str.substr (pos+1);
 326
 327                 result = portmap.insert (newpair);
 328
 329                 strpair.first = portname;
 330                 strpair.second = str;
 331
 332                 result.first->second.push_back (strpair);
 333         }
 334
 335         PortMap::iterator i;
 336
 337         for (i = portmap.begin(); i != portmap.end(); ++i) {
 338
 339                 Box *client_box = manage (new VBox);
 340                 TreeView *display = manage (new TreeView);
 341                 RefPtr<ListStore> model = ListStore::create (port_display_columns);
 342                 ScrolledWindow *scroller = manage (new ScrolledWindow);
 343
 344                 display->set_model (model);
 345                 display->append_column (X_("notvisible"), port_display_columns.displayed_name);
 346                 display->set_headers_visible (false);
 347                 display->get_selection()->set_mode (SELECTION_SINGLE);
 348                 display->set_name ("IOSelectorList");
 349
 350                 for (vector<pair<string,string> >::iterator s = i->second.begin(); s != i->second.end(); ++s) {
 351
 352                         TreeModel::Row row = *(model->append ());
 353
 354                         row[port_display_columns.displayed_name] = s->first;
 355                         row[port_display_columns.full_name] = s->second;
 356                 }
 357
 358                 display->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::port_selection_changed), display));
 359                 Label *tab_label = manage (new Label);
 360
 361                 tab_label->set_name ("IOSelectorNotebookTab");
 362                 tab_label->set_text ((*i).first);
 363
 364                 scroller->add (*display);
 365                 scroller->set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 366
 367                 client_box->pack_start (*scroller);
 368
 369                 pages.push_back (TabElem (*client_box, *tab_label));
 370         }
 371
 372         cerr << "notebook should have " << portmap.size() << " pages\n";
 373
 374         notebook.set_current_page (current_page);
 375         page_selection_connection = notebook.signal_show().connect (bind (mem_fun (notebook, &Notebook::set_current_page), current_page));
 376         selector_box.show_all ();
 377 }
 378
 379 void
 380 IOSelector::display_ports ()
 381 {
 382         TreeView *firsttview = 0;
 383         TreeView *selected_port_tview = 0;
 384         {
 385                 Glib::Mutex::Lock lm  (port_display_lock);
 386                 Port *port;
 387                 uint32_t limit;
 388
 389                 if (for_input) {
 390                         limit = io->n_inputs();
 391                 } else {
 392                         limit = io->n_outputs();
 393                 }
 394
 395                 for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ) {
 396
 397                         slist<TreeView *>::iterator tmp;
 398
 399                         tmp = i;
 400                         ++tmp;
 401
 402                         port_box.remove (**i);
 403                         delete *i;
 404                         port_displays.erase (i);
 405
 406                         i = tmp;
 407                 }
 408
 409                 for (uint32_t n = 0; n < limit; ++n) {
 410
 411                         TreeView* tview;
 412                         //ScrolledWindow *scroller;
 413                         string really_short_name;
 414
 415                         if (for_input) {
 416                                 port = io->input (n);
 417                         } else {
 418                                 port = io->output (n);
 419                         }
 420
 421                         /* we know there is '/' because we put it there */
 422
 423                         really_short_name = port->short_name();
 424                         really_short_name = really_short_name.substr (really_short_name.find ('/') + 1);
 425
 426                         tview = manage (new TreeView());
 427                         RefPtr<ListStore> port_model = ListStore::create (port_display_columns);
 428
 429                         if (!firsttview) {
 430                                 firsttview = tview;
 431                         }
 432
 433                         tview->set_model (port_model);
 434                         tview->append_column (really_short_name, port_display_columns.displayed_name);
 435                         tview->get_selection()->set_mode (SELECTION_SINGLE);
 436                         tview->set_data ("port", port);
 437                         tview->set_headers_visible (true);
 438                         tview->set_name ("IOSelectorPortList");
 439
 440                         port_box.pack_start (*tview);
 441                         port_displays.insert (port_displays.end(), tview);
 442
 443                         /* now fill the clist with the current connections */
 444
 445
 446                         const char **connections = port->get_connections ();
 447
 448                         if (connections) {
 449                                 for (uint32_t c = 0; connections[c]; ++c) {
 450                                         TreeModel::Row row = *(port_model->append());
 451                                         row[port_display_columns.displayed_name] = connections[c];
 452                                         row[port_display_columns.full_name] = connections[c];
 453                                 }
 454                         }
 455
 456                         if (for_input) {
 457
 458                                 if (io->input_maximum() == 1) {
 459                                         selected_port = port;
 460                                         selected_port_tview = tview;
 461                                 } else {
 462                                         if (port == selected_port) {
 463                                                 selected_port_tview = tview;
 464                                         }
 465                                 }
 466
 467                         } else {
 468
 469                                 if (io->output_maximum() == 1) {
 470                                         selected_port = port;
 471                                         selected_port_tview = tview;
 472                                 } else {
 473                                         if (port == selected_port) {
 474                                                 selected_port_tview = tview;
 475                                         }
 476                                 }
 477                         }
 478
 479                         TreeViewColumn* col = tview->get_column (0);
 480
 481                         col->set_clickable (true);
 482
 483                         /* handle button events on the column header ... */
 484                         col->signal_clicked().connect (bind (mem_fun(*this, &IOSelector::select_treeview), tview));
 485
 486                         /* ... and within the treeview itself */
 487                         tview->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::connection_button_release), tview));
 488                 }
 489
 490                 port_box.show_all ();
 491         }
 492
 493         if (!selected_port_tview) {
 494                 selected_port_tview = firsttview;
 495         }
 496
 497         if (selected_port_tview) {
 498                 select_treeview (selected_port_tview);
 499         }
 500 }
 501
 502 bool
 503 IOSelector::port_selection_changed (GdkEventButton *ev, TreeView* treeview)
 504 {
 505         TreeModel::iterator i = treeview->get_selection()->get_selected();
 506         int status;
 507
 508         if (!i) {
 509                 return 0;
 510         }
 511
 512         if (selected_port == 0) {
 513                 return 0;
 514         }
 515
 516         ustring other_port_name = (*i)[port_display_columns.full_name];
 517
 518         if (for_input) {
 519                 if ((status = io->connect_input (selected_port, other_port_name, this)) == 0) {
 520                         Port *p = session.engine().get_port_by_name (other_port_name);
 521                         p->enable_metering();
 522                 }
 523         } else {
 524                 status = io->connect_output (selected_port, other_port_name, this);
 525         }
 526
 527         if (status == 0) {
 528                 select_next_treeview ();
 529         }
 530
 531         treeview->get_selection()->unselect_all();
 532         return 0;
 533 }
 534
 535 void
 536 IOSelector::ports_changed (IOChange change, void *src)
 537 {
 538         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::ports_changed), change, src));
 539
 540         display_ports ();
 541 }
 542
 543 void
 544 IOSelector::add_port ()
 545 {
 546         /* add a new port, then hide the button if we're up to the maximum allowed */
 547
 548         if (for_input) {
 549
 550                 try {
 551                         io->add_input_port ("", this);
 552                 }
 553
 554                 catch (AudioEngine::PortRegistrationFailure& err) {
 555                         MessageDialog msg (0,  _("There are no more JACK ports available."));
 556                         msg.run ();
 557                 }
 558
 559         } else {
 560
 561                 try {
 562                         io->add_output_port ("", this);
 563                 }
 564
 565                 catch (AudioEngine::PortRegistrationFailure& err) {
 566                         MessageDialog msg (0, _("There are no more JACK ports available."));
 567                         msg.run ();
 568                 }
 569         }
 570
 571         set_button_sensitivity ();
 572 }
 573
 574 void
 575 IOSelector::remove_port ()
 576 {
 577         uint32_t nports;
 578
 579         // always remove last port
 580
 581         if (for_input) {
 582                 if ((nports = io->n_inputs()) > 0) {
 583                         io->remove_input_port (io->input(nports-1), this);
 584                 }
 585
 586         } else {
 587                 if ((nports = io->n_outputs()) > 0) {
 588                         io->remove_output_port (io->output(nports-1), this);
 589                 }
 590         }
 591
 592         set_button_sensitivity ();
 593 }
 594
 595 gint
 596 IOSelector::connection_button_release (GdkEventButton *ev, TreeView *treeview)
 597 {
 598         /* this handles button release on a port name row: i.e. a connection
 599            between the named port and the port represented by the treeview.
 600         */
 601
 602         Gtk::TreeModel::iterator iter;
 603         TreeModel::Path path;
 604         TreeViewColumn* column;
 605         int cellx;
 606         int celly;
 607
 608         /* only handle button1 events here */
 609
 610         if (ev->button != 1) {
 611                 return false;
 612         }
 613
 614         if (!treeview->get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
 615                 return false;
 616         }
 617
 618         if ((iter = treeview->get_model()->get_iter (path.to_string()))) {
 619
 620                 /* path is valid */
 621                 ustring connected_port_name = (*iter)[port_display_columns.full_name];
 622                 Port *port = reinterpret_cast<Port *> (treeview->get_data (_("port")));
 623
 624                 if (for_input) {
 625                         Port *p = session.engine().get_port_by_name (connected_port_name);
 626                         p->disable_metering();
 627                         io->disconnect_input (port, connected_port_name, this);
 628                 } else {
 629                         io->disconnect_output (port, connected_port_name, this);
 630                 }
 631         }
 632
 633         return true;
 634 }
 635
 636 void
 637 IOSelector::select_next_treeview ()
 638 {
 639         slist<TreeView*>::iterator next;
 640
 641         if (port_displays.empty() || port_displays.size() == 1) {
 642                 return;
 643         }
 644
 645         for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 646
 647                 if ((*i)->get_name() == "IOSelectorPortListSelected") {
 648
 649                         ++i;
 650
 651                         if (i == port_displays.end()) {
 652                                 select_treeview (port_displays.front());
 653                         } else {
 654                                 select_treeview (*i);
 655                         }
 656
 657                         break;
 658                 }
 659         }
 660 }
 661
 662 void
 663 IOSelector::select_treeview (TreeView* tview)
 664 {
 665         /* Gack. TreeView's don't respond visually to a change
 666            in their state, so rename them to force a style
 667            switch.
 668         */
 669
 670         Glib::Mutex::Lock lm  (port_display_lock);
 671         Port* port = reinterpret_cast<Port *> (tview->get_data (_("port")));
 672
 673         selected_port = port;
 674
 675         tview->set_name ("IOSelectorPortListSelected");
 676         tview->queue_draw ();
 677
 678         /* ugly hack to force the column header button to change as well */
 679
 680         TreeViewColumn* col = tview->get_column (0);
 681         GtkTreeViewColumn* ccol = col->gobj();
 682
 683         if (ccol->button) {
 684                 gtk_widget_set_name (ccol->button, "IOSelectorPortListSelected");
 685                 gtk_widget_queue_draw (ccol->button);
 686         }
 687
 688         for (slist<TreeView*>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 689                 if (*i == tview) {
 690                         continue;
 691                 }
 692
 693                 col = (*i)->get_column (0);
 694                 ccol = col->gobj();
 695
 696                 if (ccol->button) {
 697                         gtk_widget_set_name (ccol->button, "IOSelectorPortList");
 698                         gtk_widget_queue_draw (ccol->button);
 699                 }
 700
 701                 (*i)->set_name ("IOSelectorPortList");
 702                 (*i)->queue_draw ();
 703         }
 704
 705         selector_box.show_all ();
 706 }
 707
 708 void
 709 IOSelector::redisplay ()
 710 {
 711         display_ports ();
 712
 713         if (for_input) {
 714                 if (io->input_maximum() != 0) {
 715                         rescan ();
 716                 }
 717         } else {
 718                 if (io->output_maximum() != 0) {
 719                         rescan();
 720                 }
 721         }
 722 }
 723
 724 PortInsertUI::PortInsertUI (Session& sess, boost::shared_ptr<PortInsert> pi)
 725         : input_selector (sess, pi, true),
 726           output_selector (sess, pi, false)
 727 {
 728         hbox.pack_start (output_selector, true, true);
 729         hbox.pack_start (input_selector, true, true);
 730
 731
 732         pack_start (hbox);
 733 }
 734
 735 void
 736 PortInsertUI::redisplay()
 737 {
 738
 739         input_selector.redisplay();
 740         output_selector.redisplay();
 741 }
 742
 743 void
 744 PortInsertUI::finished(IOSelector::Result r)
 745 {
 746         input_selector.Finished (r);
 747         output_selector.Finished (r);
 748 }
 749
 750
 751 PortInsertWindow::PortInsertWindow (Session& sess, boost::shared_ptr<PortInsert> pi, bool can_cancel)
 752         : ArdourDialog ("port insert dialog"),
 753           _portinsertui (sess, pi),
 754           ok_button (can_cancel ? _("OK"): _("Close")),
 755           cancel_button (_("Cancel")),
 756           rescan_button (_("Rescan"))
 757 {
 758
 759         set_name ("IOSelectorWindow");
 760         string title = _("ardour: ");
 761         title += pi->name();
 762         set_title (title);
 763
 764         ok_button.set_name ("IOSelectorButton");
 765         cancel_button.set_name ("IOSelectorButton");
 766         rescan_button.set_name ("IOSelectorButton");
 767
 768         button_box.set_spacing (5);
 769         button_box.set_border_width (5);
 770         button_box.set_homogeneous (true);
 771         button_box.pack_start (rescan_button);
 772         if (can_cancel) {
 773                 button_box.pack_start (cancel_button);
 774         }
 775         else {
 776                 cancel_button.hide();
 777         }
 778         button_box.pack_start (ok_button);
 779
 780         get_vbox()->pack_start (_portinsertui);
 781         get_vbox()->pack_start (button_box, false, false);
 782
 783         ok_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::accept));
 784         cancel_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::cancel));
 785         rescan_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::rescan));
 786
 787         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 788         pi->GoingAway.connect (mem_fun(*this, &PortInsertWindow::plugin_going_away));
 789 }
 790
 791 void
 792 PortInsertWindow::plugin_going_away ()
 793 {
 794         ENSURE_GUI_THREAD(mem_fun(*this, &PortInsertWindow::plugin_going_away));
 795
 796         delete_when_idle (this);
 797 }
 798
 799 void
 800 PortInsertWindow::on_map ()
 801 {
 802         _portinsertui.redisplay ();
 803         Window::on_map ();
 804 }
 805
 806
 807 void
 808 PortInsertWindow::rescan ()
 809 {
 810         _portinsertui.redisplay();
 811 }
 812
 813 void
 814 PortInsertWindow::cancel ()
 815 {
 816         _portinsertui.finished(IOSelector::Cancelled);
 817         hide ();
 818 }
 819
 820 void
 821 PortInsertWindow::accept ()
 822 {
 823         _portinsertui.finished(IOSelector::Accepted);
 824         hide ();
 825 }