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
 188         if (for_input) {
 189                 if (io->input_maximum() < 0 || io->input_maximum() > (int) io->n_inputs()) {
 190                         add_port_button.set_sensitive (true);
 191                 } else {
 192                         add_port_button.set_sensitive (false);
 193                 }
 194
 195         } else {
 196                 if (io->output_maximum() < 0 || io->output_maximum() > (int) io->n_outputs()) {
 197                         add_port_button.set_sensitive (true);
 198                 } else {
 199                         add_port_button.set_sensitive (false);
 200                 }
 201
 202         }
 203
 204         port_button_box.pack_start (remove_port_button, false, false);
 205
 206         if (for_input) {
 207                 if (io->input_minimum() < 0 || io->input_minimum() < (int) io->n_inputs()) {
 208                         remove_port_button.set_sensitive (true);
 209                 } else {
 210                         remove_port_button.set_sensitive (false);
 211                 }
 212
 213         } else {
 214                 if (io->output_minimum() < 0 || io->output_minimum() < (int) io->n_outputs()) {
 215                         remove_port_button.set_sensitive (true);
 216                 } else {
 217                         remove_port_button.set_sensitive (false);
 218                 }
 219         }
 220
 221         port_button_box.pack_start (clear_connections_button, false, false);
 222
 223         port_and_button_box.set_border_width (5);
 224         port_and_button_box.pack_start (port_button_box, false, false);
 225         port_and_button_box.pack_start (port_display_scroller);
 226
 227         port_frame.add (port_and_button_box);
 228
 229         port_and_selector_box.set_spacing (5);
 230         port_and_selector_box.pack_start (port_frame);
 231         port_and_selector_box.pack_start (selector_frame);
 232
 233         set_spacing (5);
 234         set_border_width (5);
 235         pack_start (port_and_selector_box);
 236
 237         rescan();
 238         display_ports ();
 239
 240         clear_connections_button.signal_clicked().connect (mem_fun(*this, &IOSelector::clear_connections));
 241
 242         add_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::add_port));
 243         remove_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::remove_port));
 244
 245         if (for_input) {
 246                 io->input_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 247         } else {
 248                 io->output_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 249         }
 250
 251         io->name_changed.connect (mem_fun(*this, &IOSelector::name_changed));
 252 }
 253
 254 IOSelector::~IOSelector ()
 255 {
 256 }
 257
 258 void
 259 IOSelector::name_changed (void* src)
 260 {
 261         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::name_changed), src));
 262
 263         display_ports ();
 264 }
 265
 266 void
 267 IOSelector::clear_connections ()
 268 {
 269         if (for_input) {
 270                 io->disconnect_inputs (this);
 271         } else {
 272                 io->disconnect_outputs (this);
 273         }
 274 }
 275
 276 void
 277 IOSelector::rescan ()
 278 {
 279         using namespace Notebook_Helpers;
 280
 281         typedef std::map<string,vector<pair<string,string> > > PortMap;
 282         PortMap portmap;
 283         const char **ports;
 284         PageList& pages = notebook.pages();
 285         gint current_page;
 286         vector<string> rowdata;
 287
 288         current_page = notebook.get_current_page ();
 289         pages.clear ();
 290
 291         /* get relevant current JACK ports */
 292
 293         ports = session.engine().get_ports ("", JACK_DEFAULT_AUDIO_TYPE, for_input ? JackPortIsOutput : JackPortIsInput);
 294
 295         if (ports == 0) {
 296                 return;
 297         }
 298
 299         /* find all the client names and group their ports into a list-by-client */
 300
 301         for (int n = 0; ports[n]; ++n) {
 302
 303                 pair<string,vector<pair<string,string> > > newpair;
 304                 pair<string,string> strpair;
 305                 pair<PortMap::iterator,bool> result;
 306
 307                 string str = ports[n];
 308                 string::size_type pos;
 309                 string portname;
 310
 311                 pos = str.find (':');
 312
 313                 newpair.first = str.substr (0, pos);
 314                 portname = str.substr (pos+1);
 315
 316                 result = portmap.insert (newpair);
 317
 318                 strpair.first = portname;
 319                 strpair.second = str;
 320
 321                 result.first->second.push_back (strpair);
 322         }
 323
 324         PortMap::iterator i;
 325
 326         for (i = portmap.begin(); i != portmap.end(); ++i) {
 327
 328                 Box *client_box = manage (new VBox);
 329                 TreeView *display = manage (new TreeView);
 330                 RefPtr<ListStore> model = ListStore::create (port_display_columns);
 331                 ScrolledWindow *scroller = manage (new ScrolledWindow);
 332
 333                 display->set_model (model);
 334                 display->append_column (X_("notvisible"), port_display_columns.displayed_name);
 335                 display->set_headers_visible (false);
 336                 display->get_selection()->set_mode (SELECTION_SINGLE);
 337                 display->set_name ("IOSelectorList");
 338
 339                 for (vector<pair<string,string> >::iterator s = i->second.begin(); s != i->second.end(); ++s) {
 340
 341                         TreeModel::Row row = *(model->append ());
 342
 343                         row[port_display_columns.displayed_name] = s->first;
 344                         row[port_display_columns.full_name] = s->second;
 345                 }
 346
 347                 display->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::port_selection_changed), display));
 348                 Label *tab_label = manage (new Label);
 349
 350                 tab_label->set_name ("IOSelectorNotebookTab");
 351                 tab_label->set_text ((*i).first);
 352
 353                 scroller->add (*display);
 354                 scroller->set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 355
 356                 client_box->pack_start (*scroller);
 357
 358                 pages.push_back (TabElem (*client_box, *tab_label));
 359         }
 360
 361         notebook.set_current_page (current_page);
 362         notebook.signal_show().connect (bind (mem_fun (notebook, &Notebook::set_current_page), current_page));
 363         selector_box.show_all ();
 364 }
 365
 366 void
 367 IOSelector::display_ports ()
 368 {
 369         TreeView *firsttview = 0;
 370         TreeView *selected_port_tview = 0;
 371         {
 372                 Glib::Mutex::Lock lm  (port_display_lock);
 373                 Port *port;
 374                 uint32_t limit;
 375
 376                 if (for_input) {
 377                         limit = io->n_inputs();
 378                 } else {
 379                         limit = io->n_outputs();
 380                 }
 381
 382                 for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ) {
 383
 384                         slist<TreeView *>::iterator tmp;
 385
 386                         tmp = i;
 387                         ++tmp;
 388
 389                         port_box.remove (**i);
 390                         delete *i;
 391                         port_displays.erase (i);
 392
 393                         i = tmp;
 394                 }
 395
 396                 for (uint32_t n = 0; n < limit; ++n) {
 397
 398                         TreeView* tview;
 399                         //ScrolledWindow *scroller;
 400                         string really_short_name;
 401
 402                         if (for_input) {
 403                                 port = io->input (n);
 404                         } else {
 405                                 port = io->output (n);
 406                         }
 407
 408                         /* we know there is '/' because we put it there */
 409
 410                         really_short_name = port->short_name();
 411                         really_short_name = really_short_name.substr (really_short_name.find ('/') + 1);
 412
 413                         tview = manage (new TreeView());
 414                         RefPtr<ListStore> port_model = ListStore::create (port_display_columns);
 415
 416                         if (!firsttview) {
 417                                 firsttview = tview;
 418                         }
 419
 420                         tview->set_model (port_model);
 421                         tview->append_column (really_short_name, port_display_columns.displayed_name);
 422                         tview->get_selection()->set_mode (SELECTION_SINGLE);
 423                         tview->set_data ("port", port);
 424                         tview->set_headers_visible (true);
 425                         tview->set_name ("IOSelectorPortList");
 426
 427                         port_box.pack_start (*tview);
 428                         port_displays.insert (port_displays.end(), tview);
 429
 430                         /* now fill the clist with the current connections */
 431
 432
 433                         const char **connections = port->get_connections ();
 434
 435                         if (connections) {
 436                                 for (uint32_t c = 0; connections[c]; ++c) {
 437                                         TreeModel::Row row = *(port_model->append());
 438                                         row[port_display_columns.displayed_name] = connections[c];
 439                                         row[port_display_columns.full_name] = connections[c];
 440                                 }
 441                         }
 442
 443                         if (for_input) {
 444
 445                                 if (io->input_maximum() == 1) {
 446                                         selected_port = port;
 447                                         selected_port_tview = tview;
 448                                 } else {
 449                                         if (port == selected_port) {
 450                                                 selected_port_tview = tview;
 451                                         }
 452                                 }
 453
 454                         } else {
 455
 456                                 if (io->output_maximum() == 1) {
 457                                         selected_port = port;
 458                                         selected_port_tview = tview;
 459                                 } else {
 460                                         if (port == selected_port) {
 461                                                 selected_port_tview = tview;
 462                                         }
 463                                 }
 464                         }
 465
 466                         TreeViewColumn* col = tview->get_column (0);
 467
 468                         col->set_clickable (true);
 469
 470                         /* handle button events on the column header ... */
 471                         col->signal_clicked().connect (bind (mem_fun(*this, &IOSelector::select_treeview), tview));
 472
 473                         /* ... and within the treeview itself */
 474                         tview->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::connection_button_release), tview));
 475                 }
 476
 477                 port_box.show_all ();
 478         }
 479
 480         if (!selected_port_tview) {
 481                 selected_port_tview = firsttview;
 482         }
 483
 484         if (selected_port_tview) {
 485                 select_treeview (selected_port_tview);
 486         }
 487 }
 488
 489 bool
 490 IOSelector::port_selection_changed (GdkEventButton *ev, TreeView* treeview)
 491 {
 492         TreeModel::iterator i = treeview->get_selection()->get_selected();
 493         int status;
 494
 495         if (!i) {
 496                 return 0;
 497         }
 498
 499         if (selected_port == 0) {
 500                 return 0;
 501         }
 502
 503         ustring other_port_name = (*i)[port_display_columns.full_name];
 504
 505         if (for_input) {
 506                 if ((status = io->connect_input (selected_port, other_port_name, this)) == 0) {
 507                         Port *p = session.engine().get_port_by_name (other_port_name);
 508                         p->enable_metering();
 509                 }
 510         } else {
 511                 status = io->connect_output (selected_port, other_port_name, this);
 512         }
 513
 514         if (status == 0) {
 515                 select_next_treeview ();
 516         }
 517
 518         treeview->get_selection()->unselect_all();
 519         return 0;
 520 }
 521
 522 void
 523 IOSelector::ports_changed (IOChange change, void *src)
 524 {
 525         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::ports_changed), change, src));
 526
 527         display_ports ();
 528 }
 529
 530 void
 531 IOSelector::add_port ()
 532 {
 533         /* add a new port, then hide the button if we're up to the maximum allowed */
 534
 535         if (for_input) {
 536
 537                 try {
 538                         io->add_input_port ("", this);
 539                 }
 540
 541                 catch (AudioEngine::PortRegistrationFailure& err) {
 542                         MessageDialog msg (0,  _("There are no more JACK ports available."));
 543                         msg.run ();
 544                 }
 545
 546                 if (io->input_maximum() >= 0 && io->input_maximum() <= (int) io->n_inputs()) {
 547                         add_port_button.set_sensitive (false);
 548                 }
 549
 550                 if (io->input_minimum() < (int) io->n_inputs()) {
 551                         remove_port_button.set_sensitive (true);
 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                 if (io->output_maximum() >= 0 && io->output_maximum() <= (int) io->n_outputs()) {
 566                         add_port_button.set_sensitive (false);
 567                 }
 568         }
 569 }
 570
 571 void
 572 IOSelector::remove_port ()
 573 {
 574         uint32_t nports;
 575
 576         // always remove last port
 577
 578         if (for_input) {
 579                 if ((nports = io->n_inputs()) > 0) {
 580                         io->remove_input_port (io->input(nports-1), this);
 581                 }
 582                 if (io->input_minimum() == (int) io->n_inputs()) {
 583                         remove_port_button.set_sensitive (false);
 584                 }
 585         } else {
 586                 if ((nports = io->n_outputs()) > 0) {
 587                         io->remove_output_port (io->output(nports-1), this);
 588                 }
 589         }
 590 }
 591
 592 gint
 593 IOSelector::remove_port_when_idle (Port *port)
 594 {
 595         if (for_input) {
 596                 io->remove_input_port (port, this);
 597         } else {
 598                 io->remove_output_port (port, this);
 599         }
 600
 601         return FALSE;
 602 }
 603
 604 gint
 605 IOSelector::connection_button_release (GdkEventButton *ev, TreeView *treeview)
 606 {
 607         /* this handles button release on a port name row: i.e. a connection
 608            between the named port and the port represented by the treeview.
 609         */
 610
 611         Gtk::TreeModel::iterator iter;
 612         TreeModel::Path path;
 613         TreeViewColumn* column;
 614         int cellx;
 615         int celly;
 616
 617         /* only handle button1 events here */
 618
 619         if (ev->button != 1) {
 620                 return false;
 621         }
 622
 623         if (!treeview->get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
 624                 return false;
 625         }
 626
 627         if ((iter = treeview->get_model()->get_iter (path.to_string()))) {
 628
 629                 /* path is valid */
 630                 ustring connected_port_name = (*iter)[port_display_columns.full_name];
 631                 Port *port = reinterpret_cast<Port *> (treeview->get_data (_("port")));
 632
 633                 if (for_input) {
 634                         Port *p = session.engine().get_port_by_name (connected_port_name);
 635                         p->disable_metering();
 636                         io->disconnect_input (port, connected_port_name, this);
 637                 } else {
 638                         io->disconnect_output (port, connected_port_name, this);
 639                 }
 640         }
 641
 642         return true;
 643 }
 644
 645 void
 646 IOSelector::select_next_treeview ()
 647 {
 648         slist<TreeView*>::iterator next;
 649
 650         if (port_displays.empty() || port_displays.size() == 1) {
 651                 return;
 652         }
 653
 654         for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 655
 656                 if ((*i)->get_name() == "IOSelectorPortListSelected") {
 657
 658                         ++i;
 659
 660                         if (i == port_displays.end()) {
 661                                 select_treeview (port_displays.front());
 662                         } else {
 663                                 select_treeview (*i);
 664                         }
 665
 666                         break;
 667                 }
 668         }
 669 }
 670
 671 void
 672 IOSelector::select_treeview (TreeView* tview)
 673 {
 674         /* Gack. TreeView's don't respond visually to a change
 675            in their state, so rename them to force a style
 676            switch.
 677         */
 678
 679         Glib::Mutex::Lock lm  (port_display_lock);
 680         Port* port = reinterpret_cast<Port *> (tview->get_data (_("port")));
 681
 682         selected_port = port;
 683
 684         tview->set_name ("IOSelectorPortListSelected");
 685         tview->queue_draw ();
 686
 687         /* ugly hack to force the column header button to change as well */
 688
 689         TreeViewColumn* col = tview->get_column (0);
 690         GtkTreeViewColumn* ccol = col->gobj();
 691
 692         if (ccol->button) {
 693                 gtk_widget_set_name (ccol->button, "IOSelectorPortListSelected");
 694                 gtk_widget_queue_draw (ccol->button);
 695         }
 696
 697         for (slist<TreeView*>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 698                 if (*i == tview) {
 699                         continue;
 700                 }
 701
 702                 col = (*i)->get_column (0);
 703                 ccol = col->gobj();
 704
 705                 if (ccol->button) {
 706                         gtk_widget_set_name (ccol->button, "IOSelectorPortList");
 707                         gtk_widget_queue_draw (ccol->button);
 708                 }
 709
 710                 (*i)->set_name ("IOSelectorPortList");
 711                 (*i)->queue_draw ();
 712         }
 713
 714         selector_box.show_all ();
 715 }
 716
 717 void
 718 IOSelector::redisplay ()
 719 {
 720         display_ports ();
 721
 722         if (for_input) {
 723                 if (io->input_maximum() != 0) {
 724                         rescan ();
 725                 }
 726         } else {
 727                 if (io->output_maximum() != 0) {
 728                         rescan();
 729                 }
 730         }
 731 }
 732
 733 PortInsertUI::PortInsertUI (Session& sess, boost::shared_ptr<PortInsert> pi)
 734         : input_selector (sess, pi, true),
 735           output_selector (sess, pi, false)
 736 {
 737         hbox.pack_start (output_selector, true, true);
 738         hbox.pack_start (input_selector, true, true);
 739
 740
 741         pack_start (hbox);
 742 }
 743
 744 void
 745 PortInsertUI::redisplay()
 746 {
 747
 748         input_selector.redisplay();
 749         output_selector.redisplay();
 750 }
 751
 752 void
 753 PortInsertUI::finished(IOSelector::Result r)
 754 {
 755         input_selector.Finished (r);
 756         output_selector.Finished (r);
 757 }
 758
 759
 760 PortInsertWindow::PortInsertWindow (Session& sess, boost::shared_ptr<PortInsert> pi, bool can_cancel)
 761         : ArdourDialog ("port insert dialog"),
 762           _portinsertui (sess, pi),
 763           ok_button (can_cancel ? _("OK"): _("Close")),
 764           cancel_button (_("Cancel")),
 765           rescan_button (_("Rescan"))
 766 {
 767
 768         set_name ("IOSelectorWindow");
 769         string title = _("ardour: ");
 770         title += pi->name();
 771         set_title (title);
 772
 773         ok_button.set_name ("IOSelectorButton");
 774         cancel_button.set_name ("IOSelectorButton");
 775         rescan_button.set_name ("IOSelectorButton");
 776
 777         button_box.set_spacing (5);
 778         button_box.set_border_width (5);
 779         button_box.set_homogeneous (true);
 780         button_box.pack_start (rescan_button);
 781         if (can_cancel) {
 782                 button_box.pack_start (cancel_button);
 783         }
 784         else {
 785                 cancel_button.hide();
 786         }
 787         button_box.pack_start (ok_button);
 788
 789         get_vbox()->pack_start (_portinsertui);
 790         get_vbox()->pack_start (button_box, false, false);
 791
 792         ok_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::accept));
 793         cancel_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::cancel));
 794         rescan_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::rescan));
 795
 796         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 797         pi->GoingAway.connect (mem_fun(*this, &PortInsertWindow::plugin_going_away));
 798 }
 799
 800 void
 801 PortInsertWindow::plugin_going_away ()
 802 {
 803         ENSURE_GUI_THREAD(mem_fun(*this, &PortInsertWindow::plugin_going_away));
 804
 805         delete_when_idle (this);
 806 }
 807
 808 void
 809 PortInsertWindow::on_map ()
 810 {
 811         _portinsertui.redisplay ();
 812         Window::on_map ();
 813 }
 814
 815
 816 void
 817 PortInsertWindow::rescan ()
 818 {
 819         _portinsertui.redisplay();
 820 }
 821
 822 void
 823 PortInsertWindow::cancel ()
 824 {
 825         _portinsertui.finished(IOSelector::Cancelled);
 826         hide ();
 827 }
 828
 829 void
 830 PortInsertWindow::accept ()
 831 {
 832         _portinsertui.finished(IOSelector::Accepted);
 833         hide ();
 834 }