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 <gtkmm/messagedialog.h>
  25
  26 #include <glibmm/thread.h>
  27
  28 #include <ardour/io.h>
  29 #include <ardour/route.h>
  30 #include <ardour/audioengine.h>
  31 #include <ardour/port.h>
  32 #include <ardour/insert.h>
  33 #include <ardour/session.h>
  34 #include <ardour/audio_diskstream.h>
  35
  36 #include <gtkmm2ext/doi.h>
  37 #include <gtkmm2ext/gtk_ui.h>
  38 #include <gtkmm2ext/utils.h>
  39
  40 #include "utils.h"
  41 #include "io_selector.h"
  42 #include "keyboard.h"
  43 #include "gui_thread.h"
  44
  45 #include "i18n.h"
  46
  47 using namespace std;
  48 using namespace Gtk;
  49 using namespace Glib;
  50 using namespace sigc;
  51 using namespace ARDOUR;
  52 using namespace PBD;
  53 using namespace Gtkmm2ext;
  54
  55 IOSelectorWindow::IOSelectorWindow (Session& sess, boost::shared_ptr<IO> ior, bool input, bool can_cancel)
  56         : ArdourDialog ("i/o selector"),
  57           _selector (sess, ior, input),
  58           ok_button (can_cancel ? _("OK"): _("Close")),
  59           cancel_button (_("Cancel")),
  60           rescan_button (_("Rescan"))
  61
  62 {
  63         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
  64         set_name ("IOSelectorWindow");
  65
  66         string title;
  67         if (input) {
  68                 title = string_compose(_("%1 input"), ior->name());
  69         } else {
  70                 title = string_compose(_("%1 output"), ior->name());
  71         }
  72
  73         ok_button.set_name ("IOSelectorButton");
  74         cancel_button.set_name ("IOSelectorButton");
  75         rescan_button.set_name ("IOSelectorButton");
  76
  77         button_box.set_spacing (5);
  78         button_box.set_border_width (5);
  79         button_box.set_homogeneous (true);
  80         button_box.pack_start (rescan_button);
  81
  82         if (can_cancel) {
  83                 button_box.pack_start (cancel_button);
  84         } else {
  85                 cancel_button.hide();
  86         }
  87
  88         button_box.pack_start (ok_button);
  89
  90         get_vbox()->pack_start (_selector);
  91         get_vbox()->pack_start (button_box, false, false);
  92
  93         ok_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::accept));
  94         cancel_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::cancel));
  95         rescan_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::rescan));
  96
  97         set_title (title);
  98         set_position (WIN_POS_MOUSE);
  99
 100         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 101 }
 102
 103 IOSelectorWindow::~IOSelectorWindow()
 104 {
 105 }
 106
 107 void
 108 IOSelectorWindow::rescan ()
 109 {
 110         _selector.redisplay ();
 111 }
 112
 113 void
 114 IOSelectorWindow::cancel ()
 115 {
 116         _selector.Finished(IOSelector::Cancelled);
 117         hide ();
 118 }
 119
 120 void
 121 IOSelectorWindow::accept ()
 122 {
 123         _selector.Finished(IOSelector::Accepted);
 124         hide ();
 125 }
 126
 127 void
 128 IOSelectorWindow::on_map ()
 129 {
 130         _selector.redisplay ();
 131         Window::on_map ();
 132 }
 133
 134 /*************************
 135   The IO Selector "widget"
 136  *************************/
 137
 138 IOSelector::IOSelector (Session& sess, boost::shared_ptr<IO> ior, bool input)
 139         : session (sess),
 140           io (ior),
 141           for_input (input),
 142           port_frame (for_input? _("Inputs") : _("Outputs")),
 143           add_port_button (for_input? _("Add Input") : _("Add Output")),
 144           remove_port_button (for_input? _("Remove Input") : _("Remove Output")),
 145           clear_connections_button (_("Disconnect All"))
 146 {
 147         selected_port = 0;
 148
 149         notebook.set_name ("IOSelectorNotebook");
 150         notebook.set_size_request (-1, 125);
 151
 152         clear_connections_button.set_name ("IOSelectorButton");
 153         add_port_button.set_name ("IOSelectorButton");
 154         remove_port_button.set_name ("IOSelectorButton");
 155
 156         selector_frame.set_name ("IOSelectorFrame");
 157         port_frame.set_name ("IOSelectorFrame");
 158
 159         selector_frame.set_label (_("Available connections"));
 160
 161         selector_button_box.set_spacing (5);
 162         selector_button_box.set_border_width (5);
 163
 164         selector_box.set_spacing (5);
 165         selector_box.set_border_width (5);
 166         selector_box.pack_start (notebook);
 167         selector_box.pack_start (selector_button_box, false, false);
 168
 169         selector_frame.add (selector_box);
 170
 171         port_box.set_spacing (5);
 172         port_box.set_border_width (5);
 173
 174         port_display_scroller.set_name ("IOSelectorNotebook");
 175         port_display_scroller.set_border_width (0);
 176         port_display_scroller.set_size_request (-1, 170);
 177         port_display_scroller.add (port_box);
 178         port_display_scroller.set_policy (POLICY_NEVER,
 179                                           POLICY_AUTOMATIC);
 180
 181         port_button_box.set_spacing (5);
 182         port_button_box.set_border_width (5);
 183
 184         port_button_box.pack_start (add_port_button, false, false);
 185
 186         if (for_input) {
 187                 if (io->input_maximum() < 0 || io->input_maximum() > (int) io->n_inputs()) {
 188                         add_port_button.set_sensitive (true);
 189                 } else {
 190                         add_port_button.set_sensitive (false);
 191                 }
 192
 193         } else {
 194                 if (io->output_maximum() < 0 || io->output_maximum() > (int) io->n_outputs()) {
 195                         add_port_button.set_sensitive (true);
 196                 } else {
 197                         add_port_button.set_sensitive (false);
 198                 }
 199
 200         }
 201
 202         port_button_box.pack_start (remove_port_button, false, false);
 203
 204         if (for_input) {
 205                 if (io->input_minimum() < 0 || io->input_minimum() < (int) io->n_inputs()) {
 206                         remove_port_button.set_sensitive (true);
 207                 } else {
 208                         remove_port_button.set_sensitive (false);
 209                 }
 210
 211         } else {
 212                 if (io->output_minimum() < 0 || io->output_minimum() < (int) io->n_outputs()) {
 213                         remove_port_button.set_sensitive (true);
 214                 } else {
 215                         remove_port_button.set_sensitive (false);
 216                 }
 217         }
 218
 219         port_button_box.pack_start (clear_connections_button, false, false);
 220
 221         port_and_button_box.set_border_width (5);
 222         port_and_button_box.pack_start (port_button_box, false, false);
 223         port_and_button_box.pack_start (port_display_scroller);
 224
 225         port_frame.add (port_and_button_box);
 226
 227         port_and_selector_box.set_spacing (5);
 228         port_and_selector_box.pack_start (port_frame);
 229         port_and_selector_box.pack_start (selector_frame);
 230
 231         set_spacing (5);
 232         set_border_width (5);
 233         pack_start (port_and_selector_box);
 234
 235         rescan();
 236         display_ports ();
 237
 238         clear_connections_button.signal_clicked().connect (mem_fun(*this, &IOSelector::clear_connections));
 239
 240         add_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::add_port));
 241         remove_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::remove_port));
 242
 243         if (for_input) {
 244                 io->input_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 245         } else {
 246                 io->output_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 247         }
 248
 249         io->name_changed.connect (mem_fun(*this, &IOSelector::name_changed));
 250 }
 251
 252 IOSelector::~IOSelector ()
 253 {
 254 }
 255
 256 void
 257 IOSelector::name_changed (void* src)
 258 {
 259         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::name_changed), src));
 260
 261         display_ports ();
 262 }
 263
 264 void
 265 IOSelector::clear_connections ()
 266 {
 267         if (for_input) {
 268                 io->disconnect_inputs (this);
 269         } else {
 270                 io->disconnect_outputs (this);
 271         }
 272 }
 273
 274 void
 275 IOSelector::rescan ()
 276 {
 277         using namespace Notebook_Helpers;
 278
 279         typedef std::map<string,vector<pair<string,string> > > PortMap;
 280         PortMap portmap;
 281         const char **ports;
 282         PageList& pages = notebook.pages();
 283         gint current_page;
 284         vector<string> rowdata;
 285
 286         current_page = notebook.get_current_page ();
 287         pages.clear ();
 288
 289         /* get relevant current JACK ports */
 290
 291         ports = session.engine().get_ports ("", JACK_DEFAULT_AUDIO_TYPE, for_input ? JackPortIsOutput : JackPortIsInput);
 292
 293         if (ports == 0) {
 294                 return;
 295         }
 296
 297         /* find all the client names and group their ports into a list-by-client */
 298
 299         for (int n = 0; ports[n]; ++n) {
 300
 301                 pair<string,vector<pair<string,string> > > newpair;
 302                 pair<string,string> strpair;
 303                 pair<PortMap::iterator,bool> result;
 304
 305                 string str = ports[n];
 306                 string::size_type pos;
 307                 string portname;
 308
 309                 pos = str.find (':');
 310
 311                 newpair.first = str.substr (0, pos);
 312                 portname = str.substr (pos+1);
 313
 314                 result = portmap.insert (newpair);
 315
 316                 strpair.first = portname;
 317                 strpair.second = str;
 318
 319                 result.first->second.push_back (strpair);
 320         }
 321
 322         PortMap::iterator i;
 323
 324         for (i = portmap.begin(); i != portmap.end(); ++i) {
 325
 326                 Box *client_box = manage (new VBox);
 327                 TreeView *display = manage (new TreeView);
 328                 RefPtr<ListStore> model = ListStore::create (port_display_columns);
 329                 ScrolledWindow *scroller = manage (new ScrolledWindow);
 330
 331                 display->set_model (model);
 332                 display->append_column (X_("notvisible"), port_display_columns.displayed_name);
 333                 display->set_headers_visible (false);
 334                 display->get_selection()->set_mode (SELECTION_SINGLE);
 335                 display->set_name ("IOSelectorList");
 336
 337                 for (vector<pair<string,string> >::iterator s = i->second.begin(); s != i->second.end(); ++s) {
 338
 339                         TreeModel::Row row = *(model->append ());
 340
 341                         row[port_display_columns.displayed_name] = s->first;
 342                         row[port_display_columns.full_name] = s->second;
 343                 }
 344
 345                 //display->get_selection()->signal_changed().connect (bind (mem_fun(*this, &IOSelector::port_selection_changed), display));
 346                 display->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::port_selection_changed), display));
 347                 Label *tab_label = manage (new Label);
 348
 349                 tab_label->set_name ("IOSelectorNotebookTab");
 350                 tab_label->set_text ((*i).first);
 351
 352                 scroller->add (*display);
 353                 scroller->set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 354
 355                 client_box->pack_start (*scroller);
 356
 357                 pages.push_back (TabElem (*client_box, *tab_label));
 358         }
 359
 360         notebook.set_current_page (current_page);
 361         //notebook.signal_show().connect (bind (mem_fun (notebook, &Notebook::set_current_page), current_page));
 362         selector_box.show_all ();
 363 }
 364
 365 void
 366 IOSelector::display_ports ()
 367 {
 368         TreeView *firsttview = 0;
 369         TreeView *selected_port_tview = 0;
 370
 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
 397                 for (uint32_t n = 0; n < limit; ++n) {
 398
 399                         TreeView* tview;
 400                         //ScrolledWindow *scroller;
 401                         string really_short_name;
 402
 403                         if (for_input) {
 404                                 port = io->input (n);
 405                         } else {
 406                                 port = io->output (n);
 407                         }
 408
 409                         /* we know there is '/' because we put it there */
 410
 411                         really_short_name = port->short_name();
 412                         really_short_name = really_short_name.substr (really_short_name.find ('/') + 1);
 413
 414                         tview = manage (new TreeView());
 415                         RefPtr<ListStore> port_model = ListStore::create (port_display_columns);
 416
 417                         if (!firsttview) {
 418                                 firsttview = tview;
 419                         }
 420
 421                         tview->set_model (port_model);
 422                         tview->append_column (really_short_name, port_display_columns.displayed_name);
 423                         tview->get_selection()->set_mode (SELECTION_SINGLE);
 424                         tview->set_data ("port", port);
 425                         tview->set_headers_visible (true);
 426                         tview->set_name ("IOSelectorPortList");
 427
 428                         port_box.pack_start (*tview);
 429                         port_displays.insert (port_displays.end(), tview);
 430
 431                         /* now fill the clist with the current connections */
 432
 433
 434                         const char **connections = port->get_connections ();
 435
 436                         if (connections) {
 437                                 for (uint32_t c = 0; connections[c]; ++c) {
 438                                         TreeModel::Row row = *(port_model->append());
 439                                         row[port_display_columns.displayed_name] = connections[c];
 440                                         row[port_display_columns.full_name] = connections[c];
 441                                 }
 442                         }
 443
 444                         if (for_input) {
 445
 446                                 if (io->input_maximum() == 1) {
 447                                         selected_port = port;
 448                                         selected_port_tview = tview;
 449                                 } else {
 450                                         if (port == selected_port) {
 451                                                 selected_port_tview = tview;
 452                                         }
 453                                 }
 454
 455                         } else {
 456
 457                                 if (io->output_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
 467                         TreeViewColumn* col = tview->get_column (0);
 468
 469                         col->set_clickable (true);
 470
 471                         /* handle button events on the column header and within the treeview itself */
 472                         col->signal_clicked().connect (bind (mem_fun(*this, &IOSelector::select_treeview), tview));
 473                         tview->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::connection_button_release), tview));
 474                 }
 475
 476                 port_box.show_all ();
 477
 478                 if (selected_port_tview) {
 479                         // GTK2FIX
 480                         // selected_port_tview->click_column(0);
 481                         selected_port_tview->set_name ("IOSelectorPortListSelected");
 482                         for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 483                                 if (*i != selected_port_tview) {
 484                                         (*i)->set_name ("IOSelectorPortList");
 485                                         (*i)->queue_draw ();
 486                                 }
 487                         }
 488                 } else {
 489                         selected_port = 0;
 490                         selector_box.hide_all ();
 491                 }
 492         }
 493
 494         if (selected_port_tview) {
 495                 select_treeview (selected_port_tview);
 496         } else if (firsttview) {
 497                 // select first
 498                 select_treeview (firsttview);
 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                 if (io->input_maximum() >= 0 && io->input_maximum() <= (int) io->n_inputs()) {
 560                         add_port_button.set_sensitive (false);
 561                 }
 562
 563                 if (io->input_minimum() < (int) io->n_inputs()) {
 564                         remove_port_button.set_sensitive (true);
 565                 }
 566
 567         } else {
 568
 569                 try {
 570                         io->add_output_port ("", this);
 571                 }
 572
 573                 catch (AudioEngine::PortRegistrationFailure& err) {
 574                         MessageDialog msg (0, _("There are no more JACK ports available."));
 575                         msg.run ();
 576                 }
 577
 578                 if (io->output_maximum() >= 0 && io->output_maximum() <= (int) io->n_outputs()) {
 579                         add_port_button.set_sensitive (false);
 580                 }
 581         }
 582 }
 583
 584 void
 585 IOSelector::remove_port ()
 586 {
 587         uint32_t nports;
 588
 589         // always remove last port
 590
 591         if (for_input) {
 592                 if ((nports = io->n_inputs()) > 0) {
 593                         io->remove_input_port (io->input(nports-1), this);
 594                 }
 595                 if (io->input_minimum() == (int) io->n_inputs()) {
 596                         remove_port_button.set_sensitive (false);
 597                 }
 598         } else {
 599                 if ((nports = io->n_outputs()) > 0) {
 600                         io->remove_output_port (io->output(nports-1), this);
 601                 }
 602         }
 603 }
 604
 605 gint
 606 IOSelector::remove_port_when_idle (Port *port)
 607 {
 608         if (for_input) {
 609                 io->remove_input_port (port, this);
 610         } else {
 611                 io->remove_output_port (port, this);
 612         }
 613
 614         return FALSE;
 615 }
 616
 617 gint
 618 IOSelector::connection_button_release (GdkEventButton *ev, TreeView *treeview)
 619 {
 620         /* this handles button release on a port name row: i.e. a connection
 621            between the named port and the port represented by the treeview.
 622         */
 623
 624         Gtk::TreeModel::iterator iter;
 625         TreeModel::Path path;
 626         TreeViewColumn* column;
 627         int cellx;
 628         int celly;
 629
 630         /* only handle button1 events here */
 631
 632         if (ev->button != 1) {
 633                 return false;
 634         }
 635
 636         if (!(Keyboard::is_delete_event (ev))) {
 637                 //return false;
 638         }
 639
 640         if (!treeview->get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
 641                 return false;
 642         }
 643         cerr << "path = " << path.to_string() << endl;
 644
 645         if ((iter = treeview->get_model()->get_iter (path.to_string()))) {
 646
 647                 /* path is valid */
 648                 ustring connected_port_name = (*iter)[port_display_columns.full_name];
 649                 Port *port = reinterpret_cast<Port *> (treeview->get_data (_("port")));
 650
 651                 if (for_input) {
 652                         Port *p = session.engine().get_port_by_name (connected_port_name);
 653                         p->disable_metering();
 654                         io->disconnect_input (port, connected_port_name, this);
 655                 } else {
 656                         io->disconnect_output (port, connected_port_name, this);
 657                 }
 658         }
 659
 660         return true;
 661 }
 662
 663 gint
 664 IOSelector::port_column_button_release (GdkEventButton* event, TreeView* treeview)
 665 {
 666         /* this handles button release on the button at the top of a single-column
 667            treeview (representing a port)
 668         */
 669         cerr << "IOSelector::port_column_button_release() called" << endl;
 670
 671         if (Keyboard::is_delete_event (event)) {
 672                 Port* port;
 673                 {
 674                         Glib::Mutex::Lock lm  (port_display_lock);
 675
 676                         port = static_cast<Port *> (treeview->get_data (_("port")));
 677
 678                         if (port == selected_port) {
 679                                 selected_port = 0;
 680                                 treeview->set_name ("IOSelectorPortList");
 681                                 treeview->queue_draw();
 682                         }
 683                 }
 684
 685                 /* remove the port when idle - if we do it here, we will destroy the widget
 686                    for whom we are handling an event. not good.
 687                 */
 688
 689                 signal_idle().connect (bind (mem_fun(*this, &IOSelector::remove_port_when_idle), port));
 690
 691         } else {
 692                 select_treeview (treeview);
 693         }
 694
 695         return TRUE;
 696 }
 697
 698 void
 699 IOSelector::select_next_treeview ()
 700 {
 701         slist<TreeView*>::iterator next;
 702
 703         for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 704
 705                 if ((*i)->get_name() == "IOSelectorPortListSelected") {
 706
 707                         ++i;
 708
 709                         if (i == port_displays.end()) {
 710                                 select_treeview (port_displays.front());
 711                         } else {
 712                                 select_treeview (*i);
 713                         }
 714
 715                         break;
 716                 }
 717         }
 718 }
 719
 720 void
 721 IOSelector::select_treeview (TreeView* tview)
 722 {
 723         /* Gack. TreeView's don't respond visually to a change
 724            in their state, so rename them to force a style
 725            switch.
 726         */
 727
 728         Glib::Mutex::Lock lm  (port_display_lock);
 729         Port* port = reinterpret_cast<Port *> (tview->get_data (_("port")));
 730
 731         if (port != selected_port) {
 732                 selected_port = port;
 733
 734                 tview->set_name ("IOSelectorPortListSelected");
 735
 736                 for (slist<TreeView*>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 737                         if (*i != tview) {
 738                                 (*i)->set_name ("IOSelectorPortList");
 739                                 (*i)->queue_draw ();
 740                         }
 741                 }
 742                 selector_box.show_all ();
 743         }
 744 }
 745
 746 void
 747 IOSelector::redisplay ()
 748 {
 749         display_ports ();
 750
 751         if (for_input) {
 752                 if (io->input_maximum() != 0) {
 753                         rescan ();
 754                 }
 755         } else {
 756                 if (io->output_maximum() != 0) {
 757                         rescan();
 758                 }
 759         }
 760 }
 761
 762 PortInsertUI::PortInsertUI (Session& sess, boost::shared_ptr<PortInsert> pi)
 763         : input_selector (sess, pi, true),
 764           output_selector (sess, pi, false)
 765 {
 766         hbox.pack_start (output_selector, true, true);
 767         hbox.pack_start (input_selector, true, true);
 768
 769
 770         pack_start (hbox);
 771 }
 772
 773 void
 774 PortInsertUI::redisplay()
 775 {
 776
 777         input_selector.redisplay();
 778         output_selector.redisplay();
 779 }
 780
 781 void
 782 PortInsertUI::finished(IOSelector::Result r)
 783 {
 784         input_selector.Finished (r);
 785         output_selector.Finished (r);
 786 }
 787
 788
 789 PortInsertWindow::PortInsertWindow (Session& sess, boost::shared_ptr<PortInsert> pi, bool can_cancel)
 790         : ArdourDialog ("port insert dialog"),
 791           _portinsertui (sess, pi),
 792           ok_button (can_cancel ? _("OK"): _("Close")),
 793           cancel_button (_("Cancel")),
 794           rescan_button (_("Rescan"))
 795 {
 796
 797         set_name ("IOSelectorWindow");
 798         string title = _("ardour: ");
 799         title += pi->name();
 800         set_title (title);
 801
 802         ok_button.set_name ("IOSelectorButton");
 803         cancel_button.set_name ("IOSelectorButton");
 804         rescan_button.set_name ("IOSelectorButton");
 805
 806         button_box.set_spacing (5);
 807         button_box.set_border_width (5);
 808         button_box.set_homogeneous (true);
 809         button_box.pack_start (rescan_button);
 810         if (can_cancel) {
 811                 button_box.pack_start (cancel_button);
 812         }
 813         else {
 814                 cancel_button.hide();
 815         }
 816         button_box.pack_start (ok_button);
 817
 818         get_vbox()->pack_start (_portinsertui);
 819         get_vbox()->pack_start (button_box, false, false);
 820
 821         ok_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::accept));
 822         cancel_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::cancel));
 823         rescan_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::rescan));
 824
 825         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 826         pi->GoingAway.connect (mem_fun(*this, &PortInsertWindow::plugin_going_away));
 827 }
 828
 829 void
 830 PortInsertWindow::plugin_going_away (ARDOUR::Redirect* ignored)
 831 {
 832         ENSURE_GUI_THREAD(bind (mem_fun(*this, &PortInsertWindow::plugin_going_away), ignored));
 833
 834         delete_when_idle (this);
 835 }
 836
 837 void
 838 PortInsertWindow::on_map ()
 839 {
 840         _portinsertui.redisplay ();
 841         Window::on_map ();
 842 }
 843
 844
 845 void
 846 PortInsertWindow::rescan ()
 847 {
 848         _portinsertui.redisplay();
 849 }
 850
 851 void
 852 PortInsertWindow::cancel ()
 853 {
 854         _portinsertui.finished(IOSelector::Cancelled);
 855         hide ();
 856 }
 857
 858 void
 859 PortInsertWindow::accept ()
 860 {
 861         _portinsertui.finished(IOSelector::Accepted);
 862         hide ();
 863 }