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 <pbd/lockmonitor.h>
  25
  26 #include <ardour/io.h>
  27 #include <ardour/route.h>
  28 #include <ardour/audioengine.h>
  29 #include <ardour/port.h>
  30 #include <ardour/insert.h>
  31 #include <ardour/session.h>
  32 #include <ardour/diskstream.h>
  33
  34 #include <gtkmm2ext/doi.h>
  35 #include <gtkmm2ext/gtk_ui.h>
  36
  37 #include "utils.h"
  38 #include "ardour_message.h"
  39 #include "io_selector.h"
  40 #include "keyboard.h"
  41 #include "gui_thread.h"
  42
  43 #include "i18n.h"
  44
  45 using namespace std;
  46 using namespace Gtk;
  47 using namespace Glib;
  48 using namespace sigc;
  49 using namespace ARDOUR;
  50
  51 IOSelectorWindow::IOSelectorWindow (Session& sess, IO& ior, bool input, bool can_cancel)
  52         : ArdourDialog ("i/o selector"),
  53           _selector (sess, ior, input),
  54           ok_button (can_cancel ? _("OK"): _("Close")),
  55           cancel_button (_("Cancel")),
  56           rescan_button (_("Rescan"))
  57
  58 {
  59         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
  60         set_name ("IOSelectorWindow");
  61
  62         string title;
  63         if (input) {
  64                 title = string_compose(_("%1 input"), ior.name());
  65         } else {
  66                 title = string_compose(_("%1 output"), ior.name());
  67         }
  68
  69         ok_button.set_name ("IOSelectorButton");
  70         cancel_button.set_name ("IOSelectorButton");
  71         rescan_button.set_name ("IOSelectorButton");
  72
  73         button_box.set_spacing (5);
  74         button_box.set_border_width (5);
  75         button_box.set_homogeneous (true);
  76         button_box.pack_start (rescan_button);
  77
  78         if (can_cancel) {
  79                 button_box.pack_start (cancel_button);
  80         } else {
  81                 cancel_button.hide();
  82         }
  83
  84         button_box.pack_start (ok_button);
  85
  86         get_vbox()->pack_start (_selector);
  87         get_vbox()->pack_start (button_box, false, false);
  88
  89         ok_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::accept));
  90         cancel_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::cancel));
  91         rescan_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::rescan));
  92
  93         set_title (title);
  94         set_position (WIN_POS_MOUSE);
  95
  96         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
  97 }
  98
  99 IOSelectorWindow::~IOSelectorWindow()
 100 {
 101 }
 102
 103 void
 104 IOSelectorWindow::rescan ()
 105 {
 106         _selector.redisplay ();
 107 }
 108
 109 void
 110 IOSelectorWindow::cancel ()
 111 {
 112         _selector.Finished(IOSelector::Cancelled);
 113         hide ();
 114 }
 115
 116 void
 117 IOSelectorWindow::accept ()
 118 {
 119         _selector.Finished(IOSelector::Accepted);
 120         hide ();
 121 }
 122
 123 void
 124 IOSelectorWindow::on_map ()
 125 {
 126         _selector.redisplay ();
 127         Window::on_map ();
 128 }
 129
 130 /*************************
 131   The IO Selector "widget"
 132  *************************/
 133
 134 IOSelector::IOSelector (Session& sess, IO& ior, bool input)
 135         : session (sess),
 136           io (ior),
 137           for_input (input),
 138           port_frame (for_input? _("Inputs") : _("Outputs")),
 139           add_port_button (for_input? _("Add Input") : _("Add Output")),
 140           remove_port_button (for_input? _("Remove Input") : _("Remove Output")),
 141           clear_connections_button (_("Disconnect All"))
 142 {
 143         selected_port = 0;
 144
 145         notebook.set_name ("IOSelectorNotebook");
 146         notebook.set_size_request (-1, 125);
 147
 148         clear_connections_button.set_name ("IOSelectorButton");
 149         add_port_button.set_name ("IOSelectorButton");
 150         remove_port_button.set_name ("IOSelectorButton");
 151
 152         selector_frame.set_name ("IOSelectorFrame");
 153         port_frame.set_name ("IOSelectorFrame");
 154
 155         selector_frame.set_label (_("Available connections"));
 156
 157         selector_button_box.set_spacing (5);
 158         selector_button_box.set_border_width (5);
 159
 160         selector_box.set_spacing (5);
 161         selector_box.set_border_width (5);
 162         selector_box.pack_start (notebook);
 163         selector_box.pack_start (selector_button_box, false, false);
 164
 165         selector_frame.add (selector_box);
 166
 167         port_box.set_spacing (5);
 168         port_box.set_border_width (5);
 169
 170         port_display_scroller.set_name ("IOSelectorNotebook");
 171         port_display_scroller.set_border_width (0);
 172         port_display_scroller.set_size_request (-1, 170);
 173         port_display_scroller.add (port_box);
 174         port_display_scroller.set_policy (POLICY_NEVER,
 175                                           POLICY_AUTOMATIC);
 176
 177         port_button_box.set_spacing (5);
 178         port_button_box.set_border_width (5);
 179
 180         port_button_box.pack_start (add_port_button, false, false);
 181
 182         if (for_input) {
 183                 if (io.input_maximum() < 0 || io.input_maximum() > (int) io.n_inputs()) {
 184                         add_port_button.set_sensitive (true);
 185                 } else {
 186                         add_port_button.set_sensitive (false);
 187                 }
 188
 189         } else {
 190                 if (io.output_maximum() < 0 || io.output_maximum() > (int) io.n_outputs()) {
 191                         add_port_button.set_sensitive (true);
 192                 } else {
 193                         add_port_button.set_sensitive (false);
 194                 }
 195
 196         }
 197
 198         port_button_box.pack_start (remove_port_button, false, false);
 199
 200         if (for_input) {
 201                 if (io.input_minimum() < 0 || io.input_minimum() < (int) io.n_inputs()) {
 202                         remove_port_button.set_sensitive (true);
 203                 } else {
 204                         remove_port_button.set_sensitive (false);
 205                 }
 206
 207         } else {
 208                 if (io.output_minimum() < 0 || io.output_minimum() < (int) io.n_outputs()) {
 209                         remove_port_button.set_sensitive (true);
 210                 } else {
 211                         remove_port_button.set_sensitive (false);
 212                 }
 213         }
 214
 215         port_button_box.pack_start (clear_connections_button, false, false);
 216
 217         port_and_button_box.set_border_width (5);
 218         port_and_button_box.pack_start (port_button_box, false, false);
 219         port_and_button_box.pack_start (port_display_scroller);
 220
 221         port_frame.add (port_and_button_box);
 222
 223         port_and_selector_box.set_spacing (5);
 224         port_and_selector_box.pack_start (port_frame);
 225         port_and_selector_box.pack_start (selector_frame);
 226
 227         set_spacing (5);
 228         set_border_width (5);
 229         pack_start (port_and_selector_box);
 230
 231         rescan();
 232         display_ports ();
 233
 234         clear_connections_button.signal_clicked().connect (mem_fun(*this, &IOSelector::clear_connections));
 235
 236         add_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::add_port));
 237         remove_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::remove_port));
 238
 239         if (for_input) {
 240                 io.input_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 241         } else {
 242                 io.output_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 243         }
 244
 245         io.name_changed.connect (mem_fun(*this, &IOSelector::name_changed));
 246 }
 247
 248 IOSelector::~IOSelector ()
 249 {
 250 }
 251
 252 void
 253 IOSelector::name_changed (void* src)
 254 {
 255         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::name_changed), src));
 256
 257         display_ports ();
 258 }
 259
 260 void
 261 IOSelector::clear_connections ()
 262 {
 263         if (for_input) {
 264                 io.disconnect_inputs (this);
 265         } else {
 266                 io.disconnect_outputs (this);
 267         }
 268 }
 269
 270 void
 271 IOSelector::rescan ()
 272 {
 273         using namespace Notebook_Helpers;
 274
 275         typedef std::map<string,vector<pair<string,string> > > PortMap;
 276         PortMap portmap;
 277         const char **ports;
 278         PageList& pages = notebook.pages();
 279         gint current_page;
 280         vector<string> rowdata;
 281
 282         current_page = notebook.get_current_page ();
 283         pages.clear ();
 284
 285         /* get relevant current JACK ports */
 286
 287         ports = session.engine().get_ports ("", JACK_DEFAULT_AUDIO_TYPE, for_input?JackPortIsOutput:JackPortIsInput);
 288
 289         if (ports == 0) {
 290                 return;
 291         }
 292
 293         /* get relevant current JACK ports */
 294
 295         ports = session.engine().get_ports ("", JACK_DEFAULT_AUDIO_TYPE, for_input?JackPortIsOutput:JackPortIsInput);
 296
 297         if (ports == 0) {
 298                 return;
 299         }
 300
 301         /* find all the client names and group their ports into a list-by-client */
 302
 303         for (int n = 0; ports[n]; ++n) {
 304
 305                 pair<string,vector<pair<string,string> > > newpair;
 306                 pair<string,string> strpair;
 307                 pair<PortMap::iterator,bool> result;
 308
 309                 string str = ports[n];
 310                 string::size_type pos;
 311                 string portname;
 312
 313                 pos = str.find (':');
 314
 315                 newpair.first = str.substr (0, pos);
 316                 portname = str.substr (pos+1);
 317
 318                 result = portmap.insert (newpair);
 319
 320                 strpair.first = portname;
 321                 strpair.second = str;
 322
 323                 result.first->second.push_back (strpair);
 324         }
 325
 326         PortMap::iterator i;
 327
 328         for (i = portmap.begin(); i != portmap.end(); ++i) {
 329
 330                 Box *client_box = manage (new VBox);
 331                 TreeView *display = manage (new TreeView);
 332                 RefPtr<ListStore> model = ListStore::create (port_display_columns);
 333                 ScrolledWindow *scroller = manage (new ScrolledWindow);
 334
 335                 display->set_model (model);
 336                 display->append_column (X_("notvisible"), port_display_columns.displayed_name);
 337                 display->set_headers_visible (false);
 338                 display->get_selection()->set_mode (SELECTION_SINGLE);
 339                 display->set_name ("IOSelectorList");
 340
 341                 for (vector<pair<string,string> >::iterator s = i->second.begin(); s != i->second.end(); ++s) {
 342
 343                         TreeModel::Row row = *(model->append ());
 344
 345                         row[port_display_columns.displayed_name] = s->first;
 346                         row[port_display_columns.full_name] = s->second;
 347                 }
 348
 349                 display->get_selection()->signal_changed().connect
 350                         (bind (mem_fun(*this, &IOSelector::port_selection_changed), display));
 351
 352                 Label *tab_label = manage (new Label);
 353
 354                 tab_label->set_name ("IOSelectorNotebookTab");
 355                 tab_label->set_text ((*i).first);
 356
 357                 scroller->add (*display);
 358                 scroller->set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 359
 360                 client_box->pack_start (*scroller);
 361
 362                 pages.push_back (TabElem (*client_box, *tab_label));
 363         }
 364
 365         notebook.set_current_page (current_page);
 366         notebook.signal_show().connect (bind (mem_fun (notebook, &Notebook::set_current_page), current_page));
 367         selector_box.show_all ();
 368 }
 369
 370 void
 371 IOSelector::display_ports ()
 372 {
 373         TreeView *firsttview = 0;
 374         TreeView *selected_port_tview = 0;
 375
 376         {
 377                 LockMonitor lm (port_display_lock, __LINE__, __FILE__);
 378                 Port *port;
 379                 uint32_t limit;
 380
 381                 if (for_input) {
 382                         limit = io.n_inputs();
 383                 } else {
 384                         limit = io.n_outputs();
 385                 }
 386
 387                 for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ) {
 388
 389                         slist<TreeView *>::iterator tmp;
 390
 391                         tmp = i;
 392                         ++tmp;
 393
 394                         port_box.remove (**i);
 395                         delete *i;
 396                         port_displays.erase (i);
 397
 398                         i = tmp;
 399                 }
 400
 401
 402                 for (uint32_t n = 0; n < limit; ++n) {
 403
 404                         TreeView* tview;
 405                         ScrolledWindow *scroller;
 406                         string really_short_name;
 407
 408                         if (for_input) {
 409                                 port = io.input (n);
 410                         } else {
 411                                 port = io.output (n);
 412                         }
 413
 414                         /* we know there is '/' because we put it there */
 415
 416                         really_short_name = port->short_name();
 417                         really_short_name = really_short_name.substr (really_short_name.find ('/') + 1);
 418
 419                         tview = manage (new TreeView());
 420                         RefPtr<ListStore> port_model = ListStore::create (port_display_columns);
 421
 422                         if (!firsttview) {
 423                                 firsttview = tview;
 424                         }
 425
 426                         tview->set_model (port_model);
 427                         tview->append_column (really_short_name, port_display_columns.displayed_name);
 428                         tview->get_selection()->set_mode (SELECTION_SINGLE);
 429                         tview->set_data ("port", port);
 430                         tview->set_headers_visible (true);
 431                         tview->set_name ("IOSelectorPortList");
 432
 433                         scroller = manage (new ScrolledWindow);
 434
 435                         scroller->add (*tview);
 436                         scroller->set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
 437
 438                         port_displays.insert (port_displays.end(), tview);
 439                         port_box.pack_start (*scroller);
 440
 441                         scroller->set_size_request (-1, 75);
 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                                 }
 453                         }
 454
 455                         if (for_input) {
 456
 457                                 if (io.input_maximum() == 1) {
 458                                         selected_port = port;
 459                                         selected_port_tview = tview;
 460                                 } else {
 461                                         if (port == selected_port) {
 462                                                 selected_port_tview = tview;
 463                                         }
 464                                 }
 465
 466                         } else {
 467
 468                                 if (io.output_maximum() == 1) {
 469                                         selected_port = port;
 470                                         selected_port_tview = tview;
 471                                 } else {
 472                                         if (port == selected_port) {
 473                                                 selected_port_tview = tview;
 474                                         }
 475                                 }
 476                         }
 477
 478                         TreeViewColumn* col = tview->get_column (0);
 479
 480                         col->set_clickable (true);
 481
 482                         /* handle button events on the column header and within the treeview itself */
 483
 484                         //col->get_widget()->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::port_column_button_release), tview));
 485                         tview->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::connection_button_release), tview));
 486                 }
 487
 488                 port_box.show_all ();
 489
 490                 if (selected_port_tview) {
 491                         // GTK2FIX
 492                         // selected_port_tview->click_column(0);
 493                         selected_port_tview->set_name ("IOSelectorPortListSelected");
 494                         for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 495                                 if (*i != selected_port_tview) {
 496                                         (*i)->set_name ("IOSelectorPortList");
 497                                         (*i)->queue_draw ();
 498                                 }
 499                         }
 500                 } else {
 501                         selected_port = 0;
 502                         selector_box.hide_all ();
 503                 }
 504         }
 505
 506         if (selected_port_tview) {
 507                 select_treeview (selected_port_tview);
 508         } else if (firsttview) {
 509                 // select first
 510                 select_treeview (firsttview);
 511         }
 512 }
 513
 514 void
 515 IOSelector::port_selection_changed (TreeView* treeview)
 516 {
 517         TreeModel::iterator i = treeview->get_selection()->get_selected();
 518         int status;
 519
 520         if (!i) {
 521                 return;
 522         }
 523
 524         if (selected_port == 0) {
 525                 return;
 526         }
 527
 528         ustring other_port_name = (*i)[port_display_columns.full_name];
 529
 530         if (for_input) {
 531                 if ((status = io.connect_input (selected_port, other_port_name, this)) == 0) {
 532                         Port *p = session.engine().get_port_by_name (other_port_name);
 533                         p->enable_metering();
 534                 }
 535         } else {
 536                 status = io.connect_output (selected_port, other_port_name, this);
 537         }
 538
 539         if (status == 0) {
 540                 select_next_treeview ();
 541         }
 542 }
 543
 544 void
 545 IOSelector::ports_changed (IOChange change, void *src)
 546 {
 547         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::ports_changed), change, src));
 548
 549         display_ports ();
 550 }
 551
 552 void
 553 IOSelector::add_port ()
 554 {
 555         /* add a new port, then hide the button if we're up to the maximum allowed */
 556
 557         if (for_input) {
 558
 559                 try {
 560                         io.add_input_port ("", this);
 561                 }
 562
 563                 catch (AudioEngine::PortRegistrationFailure& err) {
 564                         ArdourMessage msg (0,  X_("noport dialog"), _("There are no more JACK ports available."));
 565                 }
 566
 567                 if (io.input_maximum() >= 0 && io.input_maximum() <= (int) io.n_inputs()) {
 568                         add_port_button.set_sensitive (false);
 569                 }
 570
 571                 if (io.input_minimum() < (int) io.n_inputs()) {
 572                         remove_port_button.set_sensitive (true);
 573                 }
 574
 575         } else {
 576
 577                 try {
 578                         io.add_output_port ("", this);
 579                 }
 580
 581                 catch (AudioEngine::PortRegistrationFailure& err) {
 582                         ArdourMessage msg (0, X_("noport dialog"),
 583                                            _("There are no more JACK ports available."));
 584                 }
 585
 586                 if (io.output_maximum() >= 0 && io.output_maximum() <= (int) io.n_outputs()) {
 587                         add_port_button.set_sensitive (false);
 588                 }
 589         }
 590 }
 591
 592 void
 593 IOSelector::remove_port ()
 594 {
 595         uint32_t nports;
 596
 597         // always remove last port
 598
 599         if (for_input) {
 600                 if ((nports = io.n_inputs()) > 0) {
 601                         io.remove_input_port (io.input(nports-1), this);
 602                 }
 603                 if (io.input_minimum() == (int) io.n_inputs()) {
 604                         remove_port_button.set_sensitive (false);
 605                 }
 606         } else {
 607                 if ((nports = io.n_outputs()) > 0) {
 608                         io.remove_output_port (io.output(nports-1), this);
 609                 }
 610         }
 611 }
 612
 613 gint
 614 IOSelector::remove_port_when_idle (Port *port)
 615 {
 616         if (for_input) {
 617                 io.remove_input_port (port, this);
 618         } else {
 619                 io.remove_output_port (port, this);
 620         }
 621
 622         return FALSE;
 623 }
 624
 625 gint
 626 IOSelector::connection_button_release (GdkEventButton *ev, TreeView *treeview)
 627 {
 628         /* this handles button release on a port name row: i.e. a connection
 629            between the named port and the port represented by the treeview.
 630         */
 631
 632         TreeIter iter;
 633         TreeModel::Path path;
 634         TreeViewColumn* column;
 635         int cellx;
 636         int celly;
 637
 638         /* only handle button1 events here */
 639
 640         if (ev->button != 1) {
 641                 return false;
 642         }
 643
 644         if (!(Keyboard::is_delete_event (ev))) {
 645                 return false;
 646         }
 647
 648         if (!treeview->get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
 649                 return false;
 650         }
 651
 652         if ((iter = treeview->get_model()->get_iter (path))) {
 653
 654                 /* path is valid */
 655
 656                 ustring connected_port_name = (*iter)[port_display_columns.full_name];
 657                 Port *port = reinterpret_cast<Port *> (treeview->get_data (_("port")));
 658
 659                 if (for_input) {
 660                         Port *p = session.engine().get_port_by_name (connected_port_name);
 661                         p->disable_metering();
 662                         io.disconnect_input (port, connected_port_name, this);
 663                 } else {
 664                         io.disconnect_output (port, connected_port_name, this);
 665                 }
 666         }
 667
 668         return true;
 669 }
 670
 671 gint
 672 IOSelector::port_column_button_release (GdkEventButton *event, TreeView* treeview)
 673 {
 674         /* this handles button release on the button at the top of a single-column
 675            treeview (representing a port)
 676         */
 677
 678         if (Keyboard::is_delete_event (event)) {
 679                 Port* port;
 680                 {
 681                         LockMonitor lm (port_display_lock, __LINE__, __FILE__);
 682
 683                         port = static_cast<Port *> (treeview->get_data (_("port")));
 684
 685                         if (port == selected_port) {
 686                                 selected_port = 0;
 687                                 treeview->set_name ("IOSelectorPortList");
 688                                 treeview->queue_draw();
 689                         }
 690                 }
 691
 692                 /* remove the port when idle - if we do it here, we will destroy the widget
 693                    for whom we are handling an event. not good.
 694                 */
 695
 696                 signal_idle().connect (bind (mem_fun(*this, &IOSelector::remove_port_when_idle), port));
 697
 698         } else {
 699                 select_treeview (treeview);
 700         }
 701
 702         return TRUE;
 703 }
 704
 705 void
 706 IOSelector::select_next_treeview ()
 707 {
 708         slist<TreeView*>::iterator next;
 709
 710         for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 711
 712                 if ((*i)->get_name() == "IOSelectorPortListSelected") {
 713
 714                         ++i;
 715
 716                         if (i == port_displays.end()) {
 717                                 select_treeview (port_displays.front());
 718                         } else {
 719                                 select_treeview (*i);
 720                         }
 721
 722                         break;
 723                 }
 724         }
 725 }
 726
 727 void
 728 IOSelector::select_treeview (TreeView* tview)
 729 {
 730         /* Gack. TreeView's don't respond visually to a change
 731            in their state, so rename them to force a style
 732            switch.
 733         */
 734
 735         LockMonitor lm (port_display_lock, __LINE__, __FILE__);
 736         Port* port = reinterpret_cast<Port *> (tview->get_data (_("port")));
 737
 738         if (port != selected_port) {
 739                 selected_port = port;
 740
 741                 tview->set_name ("IOSelectorPortListSelected");
 742
 743                 for (slist<TreeView*>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 744                         if (*i != tview) {
 745                                 (*i)->set_name ("IOSelectorPortList");
 746                                 (*i)->queue_draw ();
 747                         }
 748                 }
 749                 selector_box.show_all ();
 750         }
 751 }
 752
 753 void
 754 IOSelector::redisplay ()
 755 {
 756         display_ports ();
 757
 758         if (for_input) {
 759                 if (io.input_maximum() != 0) {
 760                         rescan ();
 761                 }
 762         } else {
 763                 if (io.output_maximum() != 0) {
 764                         rescan();
 765                 }
 766         }
 767 }
 768
 769 PortInsertUI::PortInsertUI (Session& sess, PortInsert& pi)
 770         : input_selector (sess, pi, true),
 771           output_selector (sess, pi, false)
 772 {
 773         hbox.pack_start (output_selector, true, true);
 774         hbox.pack_start (input_selector, true, true);
 775
 776
 777         pack_start (hbox);
 778 }
 779
 780 void
 781 PortInsertUI::redisplay()
 782 {
 783
 784         input_selector.redisplay();
 785         output_selector.redisplay();
 786 }
 787
 788 void
 789 PortInsertUI::finished(IOSelector::Result r)
 790 {
 791         input_selector.Finished (r);
 792         output_selector.Finished (r);
 793 }
 794
 795
 796 PortInsertWindow::PortInsertWindow (Session& sess, PortInsert& pi, bool can_cancel)
 797         : ArdourDialog ("port insert dialog"),
 798           _portinsertui(sess, pi),
 799           ok_button (can_cancel ? _("OK"): _("Close")),
 800           cancel_button (_("Cancel")),
 801           rescan_button (_("Rescan"))
 802 {
 803
 804         set_name ("IOSelectorWindow");
 805         string title = _("ardour: ");
 806         title += pi.name();
 807         set_title (title);
 808
 809         ok_button.set_name ("IOSelectorButton");
 810         cancel_button.set_name ("IOSelectorButton");
 811         rescan_button.set_name ("IOSelectorButton");
 812
 813         button_box.set_spacing (5);
 814         button_box.set_border_width (5);
 815         button_box.set_homogeneous (true);
 816         button_box.pack_start (rescan_button);
 817         if (can_cancel) {
 818                 button_box.pack_start (cancel_button);
 819         }
 820         else {
 821                 cancel_button.hide();
 822         }
 823         button_box.pack_start (ok_button);
 824
 825         vbox.pack_start (_portinsertui);
 826         vbox.pack_start (button_box, false, false);
 827
 828         add (vbox);
 829
 830         ok_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::accept));
 831         cancel_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::cancel));
 832         rescan_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::rescan));
 833
 834         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 835         pi.GoingAway.connect (mem_fun(*this, &PortInsertWindow::plugin_going_away));
 836 }
 837
 838 void
 839 PortInsertWindow::plugin_going_away (ARDOUR::Redirect* ignored)
 840 {
 841         ENSURE_GUI_THREAD(bind (mem_fun(*this, &PortInsertWindow::plugin_going_away), ignored));
 842
 843         delete_when_idle (this);
 844 }
 845
 846 void
 847 PortInsertWindow::on_map ()
 848 {
 849         _portinsertui.redisplay ();
 850         Window::on_map ();
 851 }
 852
 853
 854 void
 855 PortInsertWindow::rescan ()
 856 {
 857         _portinsertui.redisplay();
 858 }
 859
 860 void
 861 PortInsertWindow::cancel ()
 862 {
 863         _portinsertui.finished(IOSelector::Cancelled);
 864         hide ();
 865 }
 866
 867 void
 868 PortInsertWindow::accept ()
 869 {
 870         _portinsertui.finished(IOSelector::Accepted);
 871         hide ();
 872 }