gtk2_ardour/io_selector.cc

   1 /*
   2     Copyright (C) 2002-2003 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18     $Id$
  19 */
  20
  21 #include <map>
  22 #include <vector>
  23
  24 #include <sigc++/bind.h>
  25
  26 #include <gtkmm/messagedialog.h>
  27
  28 #include <glibmm/thread.h>
  29
  30 #include <ardour/io.h>
  31 #include <ardour/route.h>
  32 #include <ardour/audioengine.h>
  33 #include <ardour/port.h>
  34 #include <ardour/insert.h>
  35 #include <ardour/session.h>
  36 #include <ardour/audio_diskstream.h>
  37
  38 #include <gtkmm2ext/doi.h>
  39 #include <gtkmm2ext/gtk_ui.h>
  40 #include <gtkmm2ext/utils.h>
  41
  42 #include "utils.h"
  43 #include "io_selector.h"
  44 #include "keyboard.h"
  45 #include "gui_thread.h"
  46
  47 #include "i18n.h"
  48
  49 using namespace std;
  50 using namespace Gtk;
  51 using namespace Glib;
  52 using namespace sigc;
  53 using namespace ARDOUR;
  54 using namespace PBD;
  55 using namespace Gtkmm2ext;
  56
  57 IOSelectorWindow::IOSelectorWindow (Session& sess, boost::shared_ptr<IO> ior, bool input, bool can_cancel)
  58         : ArdourDialog ("i/o selector"),
  59           _selector (sess, ior, input),
  60           ok_button (can_cancel ? _("OK"): _("Close")),
  61           cancel_button (_("Cancel")),
  62           rescan_button (_("Rescan"))
  63
  64 {
  65         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
  66         set_name ("IOSelectorWindow");
  67
  68         string title;
  69         if (input) {
  70                 title = string_compose(_("%1 input"), ior->name());
  71         } else {
  72                 title = string_compose(_("%1 output"), ior->name());
  73         }
  74
  75         ok_button.set_name ("IOSelectorButton");
  76         cancel_button.set_name ("IOSelectorButton");
  77         rescan_button.set_name ("IOSelectorButton");
  78
  79         button_box.set_spacing (5);
  80         button_box.set_border_width (5);
  81         button_box.set_homogeneous (true);
  82         button_box.pack_start (rescan_button);
  83
  84         if (can_cancel) {
  85                 button_box.pack_start (cancel_button);
  86         } else {
  87                 cancel_button.hide();
  88         }
  89
  90         button_box.pack_start (ok_button);
  91
  92         get_vbox()->pack_start (_selector);
  93         get_vbox()->pack_start (button_box, false, false);
  94
  95         ok_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::accept));
  96         cancel_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::cancel));
  97         rescan_button.signal_clicked().connect (mem_fun(*this, &IOSelectorWindow::rescan));
  98
  99         set_title (title);
 100         set_position (WIN_POS_MOUSE);
 101
 102         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 103 }
 104
 105 IOSelectorWindow::~IOSelectorWindow()
 106 {
 107 }
 108
 109 void
 110 IOSelectorWindow::rescan ()
 111 {
 112         _selector.redisplay ();
 113 }
 114
 115 void
 116 IOSelectorWindow::cancel ()
 117 {
 118         _selector.Finished(IOSelector::Cancelled);
 119         hide ();
 120 }
 121
 122 void
 123 IOSelectorWindow::accept ()
 124 {
 125         _selector.Finished(IOSelector::Accepted);
 126         hide ();
 127 }
 128
 129 void
 130 IOSelectorWindow::on_map ()
 131 {
 132         _selector.redisplay ();
 133         Window::on_map ();
 134 }
 135
 136 /*************************
 137   The IO Selector "widget"
 138  *************************/
 139
 140 IOSelector::IOSelector (Session& sess, boost::shared_ptr<IO> ior, bool input)
 141         : session (sess),
 142           io (ior),
 143           for_input (input),
 144           port_frame (for_input? _("Inputs") : _("Outputs")),
 145           add_port_button (for_input? _("Add Input") : _("Add Output")),
 146           remove_port_button (for_input? _("Remove Input") : _("Remove Output")),
 147           clear_connections_button (_("Disconnect All"))
 148 {
 149         selected_port = 0;
 150
 151         notebook.set_name ("IOSelectorNotebook");
 152         notebook.set_size_request (-1, 125);
 153
 154         clear_connections_button.set_name ("IOSelectorButton");
 155         add_port_button.set_name ("IOSelectorButton");
 156         remove_port_button.set_name ("IOSelectorButton");
 157
 158         selector_frame.set_name ("IOSelectorFrame");
 159         port_frame.set_name ("IOSelectorFrame");
 160
 161         selector_frame.set_label (_("Available connections"));
 162
 163         selector_button_box.set_spacing (5);
 164         selector_button_box.set_border_width (5);
 165
 166         selector_box.set_spacing (5);
 167         selector_box.set_border_width (5);
 168         selector_box.pack_start (notebook);
 169         selector_box.pack_start (selector_button_box, false, false);
 170
 171         selector_frame.add (selector_box);
 172
 173         port_box.set_spacing (5);
 174         port_box.set_border_width (5);
 175
 176         port_display_scroller.set_name ("IOSelectorNotebook");
 177         port_display_scroller.set_border_width (0);
 178         port_display_scroller.set_size_request (-1, 170);
 179         port_display_scroller.add (port_box);
 180         port_display_scroller.set_policy (POLICY_NEVER,
 181                                           POLICY_AUTOMATIC);
 182
 183         port_button_box.set_spacing (5);
 184         port_button_box.set_border_width (5);
 185
 186         port_button_box.pack_start (add_port_button, false, false);
 187
 188         if (for_input) {
 189                 if (io->input_maximum() < 0 || io->input_maximum() > (int) io->n_inputs()) {
 190                         add_port_button.set_sensitive (true);
 191                 } else {
 192                         add_port_button.set_sensitive (false);
 193                 }
 194
 195         } else {
 196                 if (io->output_maximum() < 0 || io->output_maximum() > (int) io->n_outputs()) {
 197                         add_port_button.set_sensitive (true);
 198                 } else {
 199                         add_port_button.set_sensitive (false);
 200                 }
 201
 202         }
 203
 204         port_button_box.pack_start (remove_port_button, false, false);
 205
 206         if (for_input) {
 207                 if (io->input_minimum() < 0 || io->input_minimum() < (int) io->n_inputs()) {
 208                         remove_port_button.set_sensitive (true);
 209                 } else {
 210                         remove_port_button.set_sensitive (false);
 211                 }
 212
 213         } else {
 214                 if (io->output_minimum() < 0 || io->output_minimum() < (int) io->n_outputs()) {
 215                         remove_port_button.set_sensitive (true);
 216                 } else {
 217                         remove_port_button.set_sensitive (false);
 218                 }
 219         }
 220
 221         port_button_box.pack_start (clear_connections_button, false, false);
 222
 223         port_and_button_box.set_border_width (5);
 224         port_and_button_box.pack_start (port_button_box, false, false);
 225         port_and_button_box.pack_start (port_display_scroller);
 226
 227         port_frame.add (port_and_button_box);
 228
 229         port_and_selector_box.set_spacing (5);
 230         port_and_selector_box.pack_start (port_frame);
 231         port_and_selector_box.pack_start (selector_frame);
 232
 233         set_spacing (5);
 234         set_border_width (5);
 235         pack_start (port_and_selector_box);
 236
 237         rescan();
 238         display_ports ();
 239
 240         clear_connections_button.signal_clicked().connect (mem_fun(*this, &IOSelector::clear_connections));
 241
 242         add_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::add_port));
 243         remove_port_button.signal_clicked().connect (mem_fun(*this, &IOSelector::remove_port));
 244
 245         if (for_input) {
 246                 io->input_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 247         } else {
 248                 io->output_changed.connect (mem_fun(*this, &IOSelector::ports_changed));
 249         }
 250
 251         io->name_changed.connect (mem_fun(*this, &IOSelector::name_changed));
 252 }
 253
 254 IOSelector::~IOSelector ()
 255 {
 256 }
 257
 258 void
 259 IOSelector::name_changed (void* src)
 260 {
 261         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::name_changed), src));
 262
 263         display_ports ();
 264 }
 265
 266 void
 267 IOSelector::clear_connections ()
 268 {
 269         if (for_input) {
 270                 io->disconnect_inputs (this);
 271         } else {
 272                 io->disconnect_outputs (this);
 273         }
 274 }
 275
 276 void
 277 IOSelector::rescan ()
 278 {
 279         using namespace Notebook_Helpers;
 280
 281         typedef std::map<string,vector<pair<string,string> > > PortMap;
 282         PortMap portmap;
 283         const char **ports;
 284         PageList& pages = notebook.pages();
 285         gint current_page;
 286         vector<string> rowdata;
 287
 288         current_page = notebook.get_current_page ();
 289         pages.clear ();
 290
 291         /* get relevant current JACK ports */
 292
 293         ports = session.engine().get_ports ("", JACK_DEFAULT_AUDIO_TYPE, for_input ? JackPortIsOutput : JackPortIsInput);
 294
 295         if (ports == 0) {
 296                 return;
 297         }
 298
 299         /* find all the client names and group their ports into a list-by-client */
 300
 301         for (int n = 0; ports[n]; ++n) {
 302
 303                 pair<string,vector<pair<string,string> > > newpair;
 304                 pair<string,string> strpair;
 305                 pair<PortMap::iterator,bool> result;
 306
 307                 string str = ports[n];
 308                 string::size_type pos;
 309                 string portname;
 310
 311                 pos = str.find (':');
 312
 313                 newpair.first = str.substr (0, pos);
 314                 portname = str.substr (pos+1);
 315
 316                 result = portmap.insert (newpair);
 317
 318                 strpair.first = portname;
 319                 strpair.second = str;
 320
 321                 result.first->second.push_back (strpair);
 322         }
 323
 324         PortMap::iterator i;
 325
 326         for (i = portmap.begin(); i != portmap.end(); ++i) {
 327
 328                 Box *client_box = manage (new VBox);
 329                 TreeView *display = manage (new TreeView);
 330                 RefPtr<ListStore> model = ListStore::create (port_display_columns);
 331                 ScrolledWindow *scroller = manage (new ScrolledWindow);
 332
 333                 display->set_model (model);
 334                 display->append_column (X_("notvisible"), port_display_columns.displayed_name);
 335                 display->set_headers_visible (false);
 336                 display->get_selection()->set_mode (SELECTION_SINGLE);
 337                 display->set_name ("IOSelectorList");
 338
 339                 for (vector<pair<string,string> >::iterator s = i->second.begin(); s != i->second.end(); ++s) {
 340
 341                         TreeModel::Row row = *(model->append ());
 342
 343                         row[port_display_columns.displayed_name] = s->first;
 344                         row[port_display_columns.full_name] = s->second;
 345                 }
 346
 347                 //display->get_selection()->signal_changed().connect (bind (mem_fun(*this, &IOSelector::port_selection_changed), display));
 348                 display->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::port_selection_changed), display));
 349                 Label *tab_label = manage (new Label);
 350
 351                 tab_label->set_name ("IOSelectorNotebookTab");
 352                 tab_label->set_text ((*i).first);
 353
 354                 scroller->add (*display);
 355                 scroller->set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 356
 357                 client_box->pack_start (*scroller);
 358
 359                 pages.push_back (TabElem (*client_box, *tab_label));
 360         }
 361
 362         notebook.set_current_page (current_page);
 363         //notebook.signal_show().connect (bind (mem_fun (notebook, &Notebook::set_current_page), current_page));
 364         selector_box.show_all ();
 365 }
 366
 367 void
 368 IOSelector::display_ports ()
 369 {
 370         TreeView *firsttview = 0;
 371         TreeView *selected_port_tview = 0;
 372
 373         {
 374                 Glib::Mutex::Lock lm  (port_display_lock);
 375                 Port *port;
 376                 uint32_t limit;
 377
 378                 if (for_input) {
 379                         limit = io->n_inputs();
 380                 } else {
 381                         limit = io->n_outputs();
 382                 }
 383
 384                 for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ) {
 385
 386                         slist<TreeView *>::iterator tmp;
 387
 388                         tmp = i;
 389                         ++tmp;
 390
 391                         port_box.remove (**i);
 392                         delete *i;
 393                         port_displays.erase (i);
 394
 395                         i = tmp;
 396                 }
 397
 398
 399                 for (uint32_t n = 0; n < limit; ++n) {
 400
 401                         TreeView* tview;
 402                         //ScrolledWindow *scroller;
 403                         string really_short_name;
 404
 405                         if (for_input) {
 406                                 port = io->input (n);
 407                         } else {
 408                                 port = io->output (n);
 409                         }
 410
 411                         /* we know there is '/' because we put it there */
 412
 413                         really_short_name = port->short_name();
 414                         really_short_name = really_short_name.substr (really_short_name.find ('/') + 1);
 415
 416                         tview = manage (new TreeView());
 417                         RefPtr<ListStore> port_model = ListStore::create (port_display_columns);
 418
 419                         if (!firsttview) {
 420                                 firsttview = tview;
 421                         }
 422
 423                         tview->set_model (port_model);
 424                         tview->append_column (really_short_name, port_display_columns.displayed_name);
 425                         tview->get_selection()->set_mode (SELECTION_SINGLE);
 426                         tview->set_data ("port", port);
 427                         tview->set_headers_visible (true);
 428                         tview->set_name ("IOSelectorPortList");
 429
 430                         port_box.pack_start (*tview);
 431                         port_displays.insert (port_displays.end(), tview);
 432
 433                         /* now fill the clist with the current connections */
 434
 435
 436                         const char **connections = port->get_connections ();
 437
 438                         if (connections) {
 439                                 for (uint32_t c = 0; connections[c]; ++c) {
 440                                         TreeModel::Row row = *(port_model->append());
 441                                         row[port_display_columns.displayed_name] = connections[c];
 442                                         row[port_display_columns.full_name] = connections[c];
 443                                 }
 444                         }
 445
 446                         if (for_input) {
 447
 448                                 if (io->input_maximum() == 1) {
 449                                         selected_port = port;
 450                                         selected_port_tview = tview;
 451                                 } else {
 452                                         if (port == selected_port) {
 453                                                 selected_port_tview = tview;
 454                                         }
 455                                 }
 456
 457                         } else {
 458
 459                                 if (io->output_maximum() == 1) {
 460                                         selected_port = port;
 461                                         selected_port_tview = tview;
 462                                 } else {
 463                                         if (port == selected_port) {
 464                                                 selected_port_tview = tview;
 465                                         }
 466                                 }
 467                         }
 468
 469                         TreeViewColumn* col = tview->get_column (0);
 470
 471                         col->set_clickable (true);
 472
 473                         /* handle button events on the column header and within the treeview itself */
 474                         col->signal_clicked().connect (bind (mem_fun(*this, &IOSelector::select_treeview), tview));
 475                         tview->signal_button_release_event().connect (bind (mem_fun(*this, &IOSelector::connection_button_release), tview));
 476                 }
 477
 478                 port_box.show_all ();
 479
 480                 if (selected_port_tview) {
 481                         // GTK2FIX
 482                         // selected_port_tview->click_column(0);
 483                         selected_port_tview->set_name ("IOSelectorPortListSelected");
 484                         for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 485                                 if (*i != selected_port_tview) {
 486                                         (*i)->set_name ("IOSelectorPortList");
 487                                         (*i)->queue_draw ();
 488                                 }
 489                         }
 490                 } else {
 491                         selected_port = 0;
 492                         selector_box.hide_all ();
 493                 }
 494         }
 495
 496         if (selected_port_tview) {
 497                 select_treeview (selected_port_tview);
 498         } else if (firsttview) {
 499                 // select first
 500                 select_treeview (firsttview);
 501         }
 502 }
 503
 504 bool
 505 IOSelector::port_selection_changed (GdkEventButton *ev, TreeView* treeview)
 506 {
 507         TreeModel::iterator i = treeview->get_selection()->get_selected();
 508         int status;
 509
 510         if (!i) {
 511                 return 0;
 512         }
 513
 514         if (selected_port == 0) {
 515                 return 0;
 516         }
 517
 518         ustring other_port_name = (*i)[port_display_columns.full_name];
 519
 520         if (for_input) {
 521                 if ((status = io->connect_input (selected_port, other_port_name, this)) == 0) {
 522                         Port *p = session.engine().get_port_by_name (other_port_name);
 523                         p->enable_metering();
 524                 }
 525         } else {
 526                 status = io->connect_output (selected_port, other_port_name, this);
 527         }
 528
 529         if (status == 0) {
 530                 select_next_treeview ();
 531         }
 532
 533         treeview->get_selection()->unselect_all();
 534         return 0;
 535 }
 536
 537 void
 538 IOSelector::ports_changed (IOChange change, void *src)
 539 {
 540         ENSURE_GUI_THREAD(bind (mem_fun(*this, &IOSelector::ports_changed), change, src));
 541
 542         display_ports ();
 543 }
 544
 545 void
 546 IOSelector::add_port ()
 547 {
 548         /* add a new port, then hide the button if we're up to the maximum allowed */
 549
 550         if (for_input) {
 551
 552                 try {
 553                         io->add_input_port ("", this);
 554                 }
 555
 556                 catch (AudioEngine::PortRegistrationFailure& err) {
 557                         MessageDialog msg (0,  _("There are no more JACK ports available."));
 558                         msg.run ();
 559                 }
 560
 561                 if (io->input_maximum() >= 0 && io->input_maximum() <= (int) io->n_inputs()) {
 562                         add_port_button.set_sensitive (false);
 563                 }
 564
 565                 if (io->input_minimum() < (int) io->n_inputs()) {
 566                         remove_port_button.set_sensitive (true);
 567                 }
 568
 569         } else {
 570
 571                 try {
 572                         io->add_output_port ("", this);
 573                 }
 574
 575                 catch (AudioEngine::PortRegistrationFailure& err) {
 576                         MessageDialog msg (0, _("There are no more JACK ports available."));
 577                         msg.run ();
 578                 }
 579
 580                 if (io->output_maximum() >= 0 && io->output_maximum() <= (int) io->n_outputs()) {
 581                         add_port_button.set_sensitive (false);
 582                 }
 583         }
 584 }
 585
 586 void
 587 IOSelector::remove_port ()
 588 {
 589         uint32_t nports;
 590
 591         // always remove last port
 592
 593         if (for_input) {
 594                 if ((nports = io->n_inputs()) > 0) {
 595                         io->remove_input_port (io->input(nports-1), this);
 596                 }
 597                 if (io->input_minimum() == (int) io->n_inputs()) {
 598                         remove_port_button.set_sensitive (false);
 599                 }
 600         } else {
 601                 if ((nports = io->n_outputs()) > 0) {
 602                         io->remove_output_port (io->output(nports-1), this);
 603                 }
 604         }
 605 }
 606
 607 gint
 608 IOSelector::remove_port_when_idle (Port *port)
 609 {
 610         if (for_input) {
 611                 io->remove_input_port (port, this);
 612         } else {
 613                 io->remove_output_port (port, this);
 614         }
 615
 616         return FALSE;
 617 }
 618
 619 gint
 620 IOSelector::connection_button_release (GdkEventButton *ev, TreeView *treeview)
 621 {
 622         /* this handles button release on a port name row: i.e. a connection
 623            between the named port and the port represented by the treeview.
 624         */
 625
 626         Gtk::TreeModel::iterator iter;
 627         TreeModel::Path path;
 628         TreeViewColumn* column;
 629         int cellx;
 630         int celly;
 631
 632         /* only handle button1 events here */
 633
 634         if (ev->button != 1) {
 635                 return false;
 636         }
 637
 638         if (!(Keyboard::is_delete_event (ev))) {
 639                 //return false;
 640         }
 641
 642         if (!treeview->get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
 643                 return false;
 644         }
 645         cerr << "path = " << path.to_string() << endl;
 646
 647         if ((iter = treeview->get_model()->get_iter (path.to_string()))) {
 648
 649                 /* path is valid */
 650                 ustring connected_port_name = (*iter)[port_display_columns.full_name];
 651                 Port *port = reinterpret_cast<Port *> (treeview->get_data (_("port")));
 652
 653                 if (for_input) {
 654                         Port *p = session.engine().get_port_by_name (connected_port_name);
 655                         p->disable_metering();
 656                         io->disconnect_input (port, connected_port_name, this);
 657                 } else {
 658                         io->disconnect_output (port, connected_port_name, this);
 659                 }
 660         }
 661
 662         return true;
 663 }
 664
 665 gint
 666 IOSelector::port_column_button_release (GdkEventButton* event, TreeView* treeview)
 667 {
 668         /* this handles button release on the button at the top of a single-column
 669            treeview (representing a port)
 670         */
 671         cerr << "IOSelector::port_column_button_release() called" << endl;
 672
 673         if (Keyboard::is_delete_event (event)) {
 674                 Port* port;
 675                 {
 676                         Glib::Mutex::Lock lm  (port_display_lock);
 677
 678                         port = static_cast<Port *> (treeview->get_data (_("port")));
 679
 680                         if (port == selected_port) {
 681                                 selected_port = 0;
 682                                 treeview->set_name ("IOSelectorPortList");
 683                                 treeview->queue_draw();
 684                         }
 685                 }
 686
 687                 /* remove the port when idle - if we do it here, we will destroy the widget
 688                    for whom we are handling an event. not good.
 689                 */
 690
 691                 signal_idle().connect (bind (mem_fun(*this, &IOSelector::remove_port_when_idle), port));
 692
 693         } else {
 694                 select_treeview (treeview);
 695         }
 696
 697         return TRUE;
 698 }
 699
 700 void
 701 IOSelector::select_next_treeview ()
 702 {
 703         slist<TreeView*>::iterator next;
 704
 705         for (slist<TreeView *>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 706
 707                 if ((*i)->get_name() == "IOSelectorPortListSelected") {
 708
 709                         ++i;
 710
 711                         if (i == port_displays.end()) {
 712                                 select_treeview (port_displays.front());
 713                         } else {
 714                                 select_treeview (*i);
 715                         }
 716
 717                         break;
 718                 }
 719         }
 720 }
 721
 722 void
 723 IOSelector::select_treeview (TreeView* tview)
 724 {
 725         /* Gack. TreeView's don't respond visually to a change
 726            in their state, so rename them to force a style
 727            switch.
 728         */
 729
 730         Glib::Mutex::Lock lm  (port_display_lock);
 731         Port* port = reinterpret_cast<Port *> (tview->get_data (_("port")));
 732
 733         if (port != selected_port) {
 734                 selected_port = port;
 735
 736                 tview->set_name ("IOSelectorPortListSelected");
 737
 738                 for (slist<TreeView*>::iterator i = port_displays.begin(); i != port_displays.end(); ++i) {
 739                         if (*i != tview) {
 740                                 (*i)->set_name ("IOSelectorPortList");
 741                                 (*i)->queue_draw ();
 742                         }
 743                 }
 744                 selector_box.show_all ();
 745         }
 746 }
 747
 748 void
 749 IOSelector::redisplay ()
 750 {
 751         display_ports ();
 752
 753         if (for_input) {
 754                 if (io->input_maximum() != 0) {
 755                         rescan ();
 756                 }
 757         } else {
 758                 if (io->output_maximum() != 0) {
 759                         rescan();
 760                 }
 761         }
 762 }
 763
 764 PortInsertUI::PortInsertUI (Session& sess, boost::shared_ptr<PortInsert> pi)
 765         : input_selector (sess, pi, true),
 766           output_selector (sess, pi, false)
 767 {
 768         hbox.pack_start (output_selector, true, true);
 769         hbox.pack_start (input_selector, true, true);
 770
 771
 772         pack_start (hbox);
 773 }
 774
 775 void
 776 PortInsertUI::redisplay()
 777 {
 778
 779         input_selector.redisplay();
 780         output_selector.redisplay();
 781 }
 782
 783 void
 784 PortInsertUI::finished(IOSelector::Result r)
 785 {
 786         input_selector.Finished (r);
 787         output_selector.Finished (r);
 788 }
 789
 790
 791 PortInsertWindow::PortInsertWindow (Session& sess, boost::shared_ptr<PortInsert> pi, bool can_cancel)
 792         : ArdourDialog ("port insert dialog"),
 793           _portinsertui (sess, pi),
 794           ok_button (can_cancel ? _("OK"): _("Close")),
 795           cancel_button (_("Cancel")),
 796           rescan_button (_("Rescan"))
 797 {
 798
 799         set_name ("IOSelectorWindow");
 800         string title = _("ardour: ");
 801         title += pi->name();
 802         set_title (title);
 803
 804         ok_button.set_name ("IOSelectorButton");
 805         cancel_button.set_name ("IOSelectorButton");
 806         rescan_button.set_name ("IOSelectorButton");
 807
 808         button_box.set_spacing (5);
 809         button_box.set_border_width (5);
 810         button_box.set_homogeneous (true);
 811         button_box.pack_start (rescan_button);
 812         if (can_cancel) {
 813                 button_box.pack_start (cancel_button);
 814         }
 815         else {
 816                 cancel_button.hide();
 817         }
 818         button_box.pack_start (ok_button);
 819
 820         get_vbox()->pack_start (_portinsertui);
 821         get_vbox()->pack_start (button_box, false, false);
 822
 823         ok_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::accept));
 824         cancel_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::cancel));
 825         rescan_button.signal_clicked().connect (mem_fun(*this, &PortInsertWindow::rescan));
 826
 827         signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), reinterpret_cast<Window *> (this)));
 828         pi->GoingAway.connect (mem_fun(*this, &PortInsertWindow::plugin_going_away));
 829 }
 830
 831 void
 832 PortInsertWindow::plugin_going_away ()
 833 {
 834         ENSURE_GUI_THREAD(mem_fun(*this, &PortInsertWindow::plugin_going_away));
 835
 836         delete_when_idle (this);
 837 }
 838
 839 void
 840 PortInsertWindow::on_map ()
 841 {
 842         _portinsertui.redisplay ();
 843         Window::on_map ();
 844 }
 845
 846
 847 void
 848 PortInsertWindow::rescan ()
 849 {
 850         _portinsertui.redisplay();
 851 }
 852
 853 void
 854 PortInsertWindow::cancel ()
 855 {
 856         _portinsertui.finished(IOSelector::Cancelled);
 857         hide ();
 858 }
 859
 860 void
 861 PortInsertWindow::accept ()
 862 {
 863         _portinsertui.finished(IOSelector::Accepted);
 864         hide ();
 865 }