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         page_selection_connection.disconnect ();
 289
 290         current_page = notebook.get_current_page ();
 291
 292         cerr << "clear notebook\n";
 293
 294         pages.clear ();
 295
 296         /* get relevant current JACK ports */
 297
 298         ports = session.engine().get_ports ("", JACK_DEFAULT_AUDIO_TYPE, for_input ? JackPortIsOutput : JackPortIsInput);
 299
 300         if (ports == 0) {
 301                 cerr << "no ports\n";
 302                 return;
 303         }
 304
 305         /* find all the client names and group their ports into a list-by-client */
 306
 307         for (int n = 0; ports[n]; ++n) {
 308
 309                 pair<string,vector<pair<string,string> > > newpair;
 310                 pair<string,string> strpair;
 311                 pair<PortMap::iterator,bool> result;
 312
 313                 string str = ports[n];
 314                 string::size_type pos;
 315                 string portname;
 316
 317                 pos = str.find (':');
 318
 319                 newpair.first = str.substr (0, pos);
 320                 portname = str.substr (pos+1);
 321
 322                 result = portmap.insert (newpair);
 323
 324                 strpair.first = portname;
 325                 strpair.second = str;
 326
 327                 result.first->second.push_back (strpair);
 328         }
 329
 330         PortMap::iterator i;
 331
 332         for (i = portmap.begin(); i != portmap.end(); ++i) {
 333
 334                 Box *client_box = manage (new VBox);
 335                 TreeView *display = manage (new TreeView);
 336                 RefPtr<ListStore> model = ListStore::create (port_display_columns);
 337                 ScrolledWindow *scroller = manage (new ScrolledWindow);
 338
 339                 display->set_model (model);
 340                 display->append_column (X_("notvisible"), port_display_columns.displayed_name);
 341                 display->set_headers_visible (false);
 342                 display->get_selection()->set_mode (SELECTION_SINGLE);
 343                 display->set_name ("IOSelectorList");
 344
 345                 for (vector<pair<string,string> >::iterator s = i->second.begin(); s != i->second.end(); ++s) {
 346
 347                         TreeModel::Row row = *(model->append ());
 348
 349                         row[port_display_columns.displayed_name] = s->first;
 350                         row[port_display_columns.full_name] = s->second;
 351                 }
 352
 353                 display->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::port_selection_changed), display));
 354                 Label *tab_label = manage (new Label);
 355
 356                 tab_label->set_name ("IOSelectorNotebookTab");
 357                 tab_label->set_text ((*i).first);
 358
 359                 scroller->add (*display);
 360                 scroller->set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 361
 362                 client_box->pack_start (*scroller);
 363
 364                 pages.push_back (TabElem (*client_box, *tab_label));
 365         }
 366
 367         cerr << "notebook should have " << portmap.size() << " pages\n";
 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 ("port", port);
 432                         tview->set_headers_visible (true);
 433                         tview->set_name ("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                 if (io->input_maximum() >= 0 && io->input_maximum() <= (int) io->n_inputs()) {
 555                         add_port_button.set_sensitive (false);
 556                 }
 557
 558                 if (io->input_minimum() < (int) io->n_inputs()) {
 559                         remove_port_button.set_sensitive (true);
 560                 }
 561
 562         } else {
 563
 564                 try {
 565                         io->add_output_port ("", this);
 566                 }
 567
 568                 catch (AudioEngine::PortRegistrationFailure& err) {
 569                         MessageDialog msg (0, _("There are no more JACK ports available."));
 570                         msg.run ();
 571                 }
 572
 573                 if (io->output_maximum() >= 0 && io->output_maximum() <= (int) io->n_outputs()) {
 574                         add_port_button.set_sensitive (false);
 575                 }
 576         }
 577 }
 578
 579 void
 580 IOSelector::remove_port ()
 581 {
 582         uint32_t nports;
 583
 584         // always remove last port
 585
 586         if (for_input) {
 587                 if ((nports = io->n_inputs()) > 0) {
 588                         io->remove_input_port (io->input(nports-1), this);
 589                 }
 590                 if (io->input_minimum() == (int) io->n_inputs()) {
 591                         remove_port_button.set_sensitive (false);
 592                 }
 593         } else {
 594                 if ((nports = io->n_outputs()) > 0) {
 595                         io->remove_output_port (io->output(nports-1), this);
 596                 }
 597         }
 598 }
 599
 600 gint
 601 IOSelector::remove_port_when_idle (Port *port)
 602 {
 603         if (for_input) {
 604                 io->remove_input_port (port, this);
 605         } else {
 606                 io->remove_output_port (port, this);
 607         }
 608
 609         return FALSE;
 610 }
 611
 612 gint
 613 IOSelector::connection_button_release (GdkEventButton *ev, TreeView *treeview)
 614 {
 615         /* this handles button release on a port name row: i.e. a connection
 616            between the named port and the port represented by the treeview.
 617         */
 618
 619         Gtk::TreeModel::iterator iter;
 620         TreeModel::Path path;
 621         TreeViewColumn* column;
 622         int cellx;
 623         int celly;
 624
 625         /* only handle button1 events here */
 626
 627         if (ev->button != 1) {
 628                 return false;
 629         }
 630
 631         if (!treeview->get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
 632                 return false;
 633         }
 634
 635         if ((iter = treeview->get_model()->get_iter (path.to_string()))) {
 636
 637                 /* path is valid */
 638                 ustring connected_port_name = (*iter)[port_display_columns.full_name];
 639                 Port *port = reinterpret_cast<Port *> (treeview->get_data (_("port")));
 640
 641                 if (for_input) {
 642                         Port *p = session.engine().get_port_by_name (connected_port_name);
 643                         p->disable_metering();
 644                         io->disconnect_input (port, connected_port_name, this);
 645                 } else {
 646                         io->disconnect_output (port, connected_port_name, this);
 647                 }
 648         }
 649
 650         return true;
 651 }
 652
 653 void
 654 IOSelector::select_next_treeview ()
 655 {
 656         slist<TreeView*>::iterator next;
 657
 658         if (port_displays.empty() || port_displays.size() == 1) {
 659                 return;
 660         }
 661
 662         for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 663
 664                 if ((*i)->get_name() == "IOSelectorPortListSelected") {
 665
 666                         ++i;
 667
 668                         if (i == port_displays.end()) {
 669                                 select_treeview (port_displays.front());
 670                         } else {
 671                                 select_treeview (*i);
 672                         }
 673
 674                         break;
 675                 }
 676         }
 677 }
 678
 679 void
 680 IOSelector::select_treeview (TreeView* tview)
 681 {
 682         /* Gack. TreeView's don't respond visually to a change
 683            in their state, so rename them to force a style
 684            switch.
 685         */
 686
 687         Glib::Mutex::Lock lm  (port_display_lock);
 688         Port* port = reinterpret_cast<Port *> (tview->get_data (_("port")));
 689
 690         selected_port = port;
 691
 692         tview->set_name ("IOSelectorPortListSelected");
 693         tview->queue_draw ();
 694
 695         /* ugly hack to force the column header button to change as well */
 696
 697         TreeViewColumn* col = tview->get_column (0);
 698         GtkTreeViewColumn* ccol = col->gobj();
 699
 700         if (ccol->button) {
 701                 gtk_widget_set_name (ccol->button, "IOSelectorPortListSelected");
 702                 gtk_widget_queue_draw (ccol->button);
 703         }
 704
 705         for (slist<TreeView*>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 706                 if (*i == tview) {
 707                         continue;
 708                 }
 709
 710                 col = (*i)->get_column (0);
 711                 ccol = col->gobj();
 712
 713                 if (ccol->button) {
 714                         gtk_widget_set_name (ccol->button, "IOSelectorPortList");
 715                         gtk_widget_queue_draw (ccol->button);
 716                 }
 717
 718                 (*i)->set_name ("IOSelectorPortList");
 719                 (*i)->queue_draw ();
 720         }
 721
 722         selector_box.show_all ();
 723 }
 724
 725 void
 726 IOSelector::redisplay ()
 727 {
 728         display_ports ();
 729
 730         if (for_input) {
 731                 if (io->input_maximum() != 0) {
 732                         rescan ();
 733                 }
 734         } else {
 735                 if (io->output_maximum() != 0) {
 736                         rescan();
 737                 }
 738         }
 739 }
 740
 741 PortInsertUI::PortInsertUI (Session& sess, boost::shared_ptr<PortInsert> pi)
 742         : input_selector (sess, pi, true),
 743           output_selector (sess, pi, false)
 744 {
 745         hbox.pack_start (output_selector, true, true);
 746         hbox.pack_start (input_selector, true, true);
 747
 748
 749         pack_start (hbox);
 750 }
 751
 752 void
 753 PortInsertUI::redisplay()
 754 {
 755
 756         input_selector.redisplay();
 757         output_selector.redisplay();
 758 }
 759
 760 void
 761 PortInsertUI::finished(IOSelector::Result r)
 762 {
 763         input_selector.Finished (r);
 764         output_selector.Finished (r);
 765 }
 766
 767
 768 PortInsertWindow::PortInsertWindow (Session& sess, boost::shared_ptr<PortInsert> pi, bool can_cancel)
 769         : ArdourDialog ("port insert dialog"),
 770           _portinsertui (sess, pi),
 771           ok_button (can_cancel ? _("OK"): _("Close")),
 772           cancel_button (_("Cancel")),
 773           rescan_button (_("Rescan"))
 774 {
 775
 776         set_name ("IOSelectorWindow");
 777         string title = _("ardour: ");
 778         title += pi->name();
 779         set_title (title);
 780
 781         ok_button.set_name ("IOSelectorButton");
 782         cancel_button.set_name ("IOSelectorButton");
 783         rescan_button.set_name ("IOSelectorButton");
 784
 785         button_box.set_spacing (5);
 786         button_box.set_border_width (5);
 787         button_box.set_homogeneous (true);
 788         button_box.pack_start (rescan_button);
 789         if (can_cancel) {
 790                 button_box.pack_start (cancel_button);
 791         }
 792         else {
 793                 cancel_button.hide();
 794         }
 795         button_box.pack_start (ok_button);
 796
 797         get_vbox()->pack_start (_portinsertui);
 798         get_vbox()->pack_start (button_box, false, false);
 799
 800         ok_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::accept));
 801         cancel_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::cancel));
 802         rescan_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::rescan));
 803
 804         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 805         pi->GoingAway.connect (mem_fun(*this, &PortInsertWindow::plugin_going_away));
 806 }
 807
 808 void
 809 PortInsertWindow::plugin_going_away ()
 810 {
 811         ENSURE_GUI_THREAD(mem_fun(*this, &PortInsertWindow::plugin_going_away));
 812
 813         delete_when_idle (this);
 814 }
 815
 816 void
 817 PortInsertWindow::on_map ()
 818 {
 819         _portinsertui.redisplay ();
 820         Window::on_map ();
 821 }
 822
 823
 824 void
 825 PortInsertWindow::rescan ()
 826 {
 827         _portinsertui.redisplay();
 828 }
 829
 830 void
 831 PortInsertWindow::cancel ()
 832 {
 833         _portinsertui.finished(IOSelector::Cancelled);
 834         hide ();
 835 }
 836
 837 void
 838 PortInsertWindow::accept ()
 839 {
 840         _portinsertui.finished(IOSelector::Accepted);
 841         hide ();
 842 }