gtk2_ardour/ardour_ui.cc

   1 /*
   2     Copyright (C) 1999-2007 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 */
  19
  20 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <stdint.h>
  25
  26 #include <algorithm>
  27 #include <cmath>
  28 #include <fcntl.h>
  29 #include <signal.h>
  30 #include <unistd.h>
  31 #include <time.h>
  32 #include <cerrno>
  33 #include <fstream>
  34
  35 #include <iostream>
  36
  37 #include <sys/resource.h>
  38
  39 #include <gtkmm/messagedialog.h>
  40 #include <gtkmm/accelmap.h>
  41
  42 #include "pbd/error.h"
  43 #include "pbd/basename.h"
  44 #include "pbd/compose.h"
  45 #include "pbd/failed_constructor.h"
  46 #include "pbd/enumwriter.h"
  47 #include "pbd/memento_command.h"
  48 #include "pbd/openuri.h"
  49 #include "pbd/file_utils.h"
  50
  51 #include "gtkmm2ext/application.h"
  52 #include "gtkmm2ext/bindings.h"
  53 #include "gtkmm2ext/gtk_ui.h"
  54 #include "gtkmm2ext/utils.h"
  55 #include "gtkmm2ext/click_box.h"
  56 #include "gtkmm2ext/fastmeter.h"
  57 #include "gtkmm2ext/popup.h"
  58 #include "gtkmm2ext/window_title.h"
  59
  60 #include "midi++/manager.h"
  61
  62 #include "ardour/ardour.h"
  63 #include "ardour/audioengine.h"
  64 #include "ardour/audiofilesource.h"
  65 #include "ardour/automation_watch.h"
  66 #include "ardour/diskstream.h"
  67 #include "ardour/filename_extensions.h"
  68 #include "ardour/port.h"
  69 #include "ardour/process_thread.h"
  70 #include "ardour/profile.h"
  71 #include "ardour/recent_sessions.h"
  72 #include "ardour/session_directory.h"
  73 #include "ardour/session_route.h"
  74 #include "ardour/session_state_utils.h"
  75 #include "ardour/session_utils.h"
  76 #include "ardour/slave.h"
  77
  78 #include "timecode/time.h"
  79
  80 typedef uint64_t microseconds_t;
  81
  82 #include "about.h"
  83 #include "actions.h"
  84 #include "add_route_dialog.h"
  85 #include "ambiguous_file_dialog.h"
  86 #include "ardour_ui.h"
  87 #include "audio_clock.h"
  88 #include "bundle_manager.h"
  89 #include "engine_dialog.h"
  90 #include "gain_meter.h"
  91 #include "global_port_matrix.h"
  92 #include "gui_object.h"
  93 #include "gui_thread.h"
  94 #include "keyboard.h"
  95 #include "location_ui.h"
  96 #include "main_clock.h"
  97 #include "missing_file_dialog.h"
  98 #include "missing_plugin_dialog.h"
  99 #include "mixer_ui.h"
 100 #include "mouse_cursors.h"
 101 #include "opts.h"
 102 #include "processor_box.h"
 103 #include "prompter.h"
 104 #include "public_editor.h"
 105 #include "route_time_axis.h"
 106 #include "session_metadata_dialog.h"
 107 #include "shuttle_control.h"
 108 #include "speaker_dialog.h"
 109 #include "splash.h"
 110 #include "startup.h"
 111 #include "theme_manager.h"
 112 #include "time_axis_view_item.h"
 113 #include "utils.h"
 114 #include "window_proxy.h"
 115
 116 #include "i18n.h"
 117
 118 using namespace ARDOUR;
 119 using namespace PBD;
 120 using namespace Gtkmm2ext;
 121 using namespace Gtk;
 122 using namespace std;
 123
 124 ARDOUR_UI *ARDOUR_UI::theArdourUI = 0;
 125 UIConfiguration *ARDOUR_UI::ui_config = 0;
 126
 127 sigc::signal<void,bool> ARDOUR_UI::Blink;
 128 sigc::signal<void>      ARDOUR_UI::RapidScreenUpdate;
 129 sigc::signal<void>      ARDOUR_UI::SuperRapidScreenUpdate;
 130 sigc::signal<void, framepos_t, bool, framepos_t> ARDOUR_UI::Clock;
 131
 132 ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
 133
 134         : Gtkmm2ext::UI (PROGRAM_NAME, argcp, argvp)
 135
 136         , gui_object_state (new GUIObjectState)
 137         , primary_clock (new MainClock (X_("primary"), false, X_("transport"), true, true, true, false, true))
 138         , secondary_clock (new MainClock (X_("secondary"), false, X_("secondary"), true, true, false, false, true))
 139
 140           /* big clock */
 141
 142         , big_clock (new AudioClock (X_("bigclock"), false, "big", true, true, false, false))
 143
 144           /* transport */
 145
 146         , roll_controllable (new TransportControllable ("transport roll", *this, TransportControllable::Roll))
 147         , stop_controllable (new TransportControllable ("transport stop", *this, TransportControllable::Stop))
 148         , goto_start_controllable (new TransportControllable ("transport goto start", *this, TransportControllable::GotoStart))
 149         , goto_end_controllable (new TransportControllable ("transport goto end", *this, TransportControllable::GotoEnd))
 150         , auto_loop_controllable (new TransportControllable ("transport auto loop", *this, TransportControllable::AutoLoop))
 151         , play_selection_controllable (new TransportControllable ("transport play selection", *this, TransportControllable::PlaySelection))
 152         , rec_controllable (new TransportControllable ("transport rec-enable", *this, TransportControllable::RecordEnable))
 153
 154         , auto_return_button (ArdourButton::led_default_elements)
 155         , follow_edits_button (ArdourButton::led_default_elements)
 156         , auto_input_button (ArdourButton::led_default_elements)
 157
 158         , auditioning_alert_button (_("audition"))
 159         , solo_alert_button (_("solo"))
 160         , feedback_alert_button (_("feedback"))
 161
 162         , error_log_button (_("Errors"))
 163
 164         , _status_bar_visibility (X_("status-bar"))
 165         , _feedback_exists (false)
 166
 167 {
 168         Gtkmm2ext::init();
 169
 170         about = 0;
 171         splash = 0;
 172         _startup = 0;
 173
 174         if (theArdourUI == 0) {
 175                 theArdourUI = this;
 176         }
 177
 178         ui_config = new UIConfiguration();
 179         theme_manager = new ThemeManager();
 180
 181         key_editor = 0;
 182
 183         editor = 0;
 184         mixer = 0;
 185         editor = 0;
 186         engine = 0;
 187         _session_is_new = false;
 188         big_clock_window = 0;
 189         big_clock_height = 0;
 190         big_clock_resize_in_progress = false;
 191         session_selector_window = 0;
 192         last_key_press_time = 0;
 193         add_route_dialog = 0;
 194         route_params = 0;
 195         bundle_manager = 0;
 196         rc_option_editor = 0;
 197         session_option_editor = 0;
 198         location_ui = 0;
 199         open_session_selector = 0;
 200         have_configure_timeout = false;
 201         have_disk_speed_dialog_displayed = false;
 202         session_loaded = false;
 203         ignore_dual_punch = false;
 204         original_big_clock_width = -1;
 205         original_big_clock_height = -1;
 206         original_big_clock_font_size = 0;
 207
 208         roll_button.set_controllable (roll_controllable);
 209         stop_button.set_controllable (stop_controllable);
 210         goto_start_button.set_controllable (goto_start_controllable);
 211         goto_end_button.set_controllable (goto_end_controllable);
 212         auto_loop_button.set_controllable (auto_loop_controllable);
 213         play_selection_button.set_controllable (play_selection_controllable);
 214         rec_button.set_controllable (rec_controllable);
 215
 216         roll_button.set_name ("transport button");
 217         stop_button.set_name ("transport button");
 218         goto_start_button.set_name ("transport button");
 219         goto_end_button.set_name ("transport button");
 220         auto_loop_button.set_name ("transport button");
 221         play_selection_button.set_name ("transport button");
 222         rec_button.set_name ("transport recenable button");
 223         midi_panic_button.set_name ("transport button");
 224
 225         goto_start_button.set_tweaks (ArdourButton::ShowClick);
 226         goto_end_button.set_tweaks (ArdourButton::ShowClick);
 227         midi_panic_button.set_tweaks (ArdourButton::ShowClick);
 228
 229         last_configure_time= 0;
 230         last_peak_grab = 0;
 231
 232         ARDOUR::Diskstream::DiskOverrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_overrun_handler, this), gui_context());
 233         ARDOUR::Diskstream::DiskUnderrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_underrun_handler, this), gui_context());
 234
 235         /* handle dialog requests */
 236
 237         ARDOUR::Session::Dialog.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::session_dialog, this, _1), gui_context());
 238
 239         /* handle pending state with a dialog (PROBLEM: needs to return a value and thus cannot be x-thread) */
 240
 241         ARDOUR::Session::AskAboutPendingState.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::pending_state_dialog, this));
 242
 243         /* handle sr mismatch with a dialog (PROBLEM: needs to return a value and thus cannot be x-thread) */
 244
 245         ARDOUR::Session::AskAboutSampleRateMismatch.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::sr_mismatch_dialog, this, _1, _2));
 246
 247         /* handle requests to quit (coming from JACK session) */
 248
 249         ARDOUR::Session::Quit.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::finish, this), gui_context ());
 250
 251         /* tell the user about feedback */
 252
 253         ARDOUR::Session::FeedbackDetected.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::feedback_detected, this), gui_context ());
 254         ARDOUR::Session::SuccessfulGraphSort.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::successful_graph_sort, this), gui_context ());
 255
 256         /* handle requests to deal with missing files */
 257
 258         ARDOUR::Session::MissingFile.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::missing_file, this, _1, _2, _3));
 259
 260         /* and ambiguous files */
 261
 262         ARDOUR::FileSource::AmbiguousFileName.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::ambiguous_file, this, _1, _2, _3));
 263
 264         /* lets get this party started */
 265
 266         try {
 267                 if (ARDOUR::init (ARDOUR_COMMAND_LINE::use_vst, ARDOUR_COMMAND_LINE::try_hw_optimization)) {
 268                         throw failed_constructor ();
 269                 }
 270
 271                 setup_gtk_ardour_enums ();
 272                 setup_profile ();
 273
 274                 GainMeter::setup_slider_pix ();
 275                 RouteTimeAxisView::setup_slider_pix ();
 276                 ProcessorEntry::setup_slider_pix ();
 277                 SessionEvent::create_per_thread_pool ("GUI", 512);
 278
 279         } catch (failed_constructor& err) {
 280                 error << string_compose (_("could not initialize %1."), PROGRAM_NAME) << endmsg;
 281                 // pass it on up
 282                 throw;
 283         }
 284
 285         /* we like keyboards */
 286
 287         keyboard = new ArdourKeyboard(*this);
 288
 289         XMLNode* node = ARDOUR_UI::instance()->keyboard_settings();
 290         if (node) {
 291                 keyboard->set_state (*node, Stateful::loading_state_version);
 292         }
 293
 294         /* we don't like certain modifiers */
 295         Bindings::set_ignored_state (GDK_LOCK_MASK|GDK_MOD2_MASK|GDK_MOD3_MASK);
 296
 297         reset_dpi();
 298
 299         TimeAxisViewItem::set_constant_heights ();
 300
 301         /* The following must happen after ARDOUR::init() so that Config is set up */
 302
 303         location_ui = new ActionWindowProxy<LocationUIWindow> (X_("locations"), Config->extra_xml (X_("UI")), X_("ToggleLocations"));
 304         big_clock_window = new ActionWindowProxy<Gtk::Window> (X_("bigclock"), Config->extra_xml (X_("UI")), X_("ToggleBigClock"));
 305         speaker_config_window = new ActionWindowProxy<SpeakerDialog> (X_("speakerconf"), Config->extra_xml (X_("UI")), X_("toggle-speaker-config"));
 306
 307         for (ARDOUR::DataType::iterator i = ARDOUR::DataType::begin(); i != ARDOUR::DataType::end(); ++i) {
 308                 _global_port_matrix[*i] = new ActionWindowProxy<GlobalPortMatrixWindow> (
 309                         string_compose ("GlobalPortMatrix-%1", (*i).to_string()),
 310                         Config->extra_xml (X_("UI")),
 311                         string_compose ("toggle-%1-connection-manager", (*i).to_string())
 312                         );
 313         }
 314
 315         setup_clock ();
 316
 317         SpeakerDialog* s = new SpeakerDialog ();
 318         s->signal_unmap().connect (sigc::bind (sigc::ptr_fun (&ActionManager::uncheck_toggleaction), X_("<Actions>/Common/toggle-speaker-config")));
 319         speaker_config_window->set (s);
 320
 321         starting.connect (sigc::mem_fun(*this, &ARDOUR_UI::startup));
 322         stopping.connect (sigc::mem_fun(*this, &ARDOUR_UI::shutdown));
 323
 324         _process_thread = new ProcessThread ();
 325         _process_thread->init ();
 326
 327         DPIReset.connect (sigc::mem_fun (*this, &ARDOUR_UI::resize_text_widgets));
 328 }
 329
 330
 331 int
 332 ARDOUR_UI::create_engine ()
 333 {
 334         // this gets called every time by new_session()
 335
 336         if (engine) {
 337                 return 0;
 338         }
 339
 340         loading_message (_("Starting audio engine"));
 341
 342         try {
 343                 engine = new ARDOUR::AudioEngine (ARDOUR_COMMAND_LINE::jack_client_name, ARDOUR_COMMAND_LINE::jack_session_uuid);
 344
 345         } catch (...) {
 346
 347                 return -1;
 348         }
 349
 350         engine->Stopped.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::engine_stopped, this), gui_context());
 351         engine->Running.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::engine_running, this), gui_context());
 352         engine->SampleRateChanged.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::update_sample_rate, this, _1), gui_context());
 353
 354         engine->Halted.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::engine_halted, this, _1, false));
 355
 356         ARDOUR::Port::set_connecting_blocked (ARDOUR_COMMAND_LINE::no_connect_ports);
 357
 358         post_engine ();
 359
 360         return 0;
 361 }
 362
 363 void
 364 ARDOUR_UI::post_engine ()
 365 {
 366         /* Things to be done once we create the AudioEngine
 367          */
 368
 369         ARDOUR::init_post_engine ();
 370
 371         /* load up the UI manager */
 372
 373         ActionManager::init ();
 374
 375         _tooltips.enable();
 376
 377         if (setup_windows ()) {
 378                 throw failed_constructor ();
 379         }
 380
 381         /* Do this after setup_windows (), as that's when the _status_bar_visibility is created */
 382         XMLNode* n = Config->extra_xml (X_("UI"));
 383         if (n) {
 384                 _status_bar_visibility.set_state (*n);
 385         }
 386
 387         check_memory_locking();
 388
 389         /* this is the first point at which all the keybindings are available */
 390
 391         if (ARDOUR_COMMAND_LINE::show_key_actions) {
 392                 vector<string> names;
 393                 vector<string> paths;
 394                 vector<string> tooltips;
 395                 vector<string> keys;
 396                 vector<AccelKey> bindings;
 397
 398                 ActionManager::get_all_actions (names, paths, tooltips, keys, bindings);
 399
 400                 vector<string>::iterator n;
 401                 vector<string>::iterator k;
 402                 for (n = names.begin(), k = keys.begin(); n != names.end(); ++n, ++k) {
 403                         cout << "Action: " << (*n) << " bound to " << (*k) << endl;
 404                 }
 405
 406                 exit (0);
 407         }
 408
 409         blink_timeout_tag = -1;
 410
 411         /* this being a GUI and all, we want peakfiles */
 412
 413         AudioFileSource::set_build_peakfiles (true);
 414         AudioFileSource::set_build_missing_peakfiles (true);
 415
 416         /* set default clock modes */
 417
 418         if (Profile->get_sae()) {
 419                 primary_clock->set_mode (AudioClock::BBT);
 420                 secondary_clock->set_mode (AudioClock::MinSec);
 421         }  else {
 422                 primary_clock->set_mode (AudioClock::Timecode);
 423                 secondary_clock->set_mode (AudioClock::BBT);
 424         }
 425
 426         /* start the time-of-day-clock */
 427
 428 #ifndef GTKOSX
 429         /* OS X provides a nearly-always visible wallclock, so don't be stupid */
 430         update_wall_clock ();
 431         Glib::signal_timeout().connect (sigc::mem_fun(*this, &ARDOUR_UI::update_wall_clock), 60000);
 432 #endif
 433
 434         update_disk_space ();
 435         update_cpu_load ();
 436         update_sample_rate (engine->frame_rate());
 437         update_timecode_format ();
 438
 439         Config->ParameterChanged.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::parameter_changed, this, _1), gui_context());
 440         boost::function<void (string)> pc (boost::bind (&ARDOUR_UI::parameter_changed, this, _1));
 441         Config->map_parameters (pc);
 442
 443         /* now start and maybe save state */
 444
 445         if (do_engine_start () == 0) {
 446                 if (_session && _session_is_new) {
 447                         /* we need to retain initial visual
 448                            settings for a new session
 449                         */
 450                         _session->save_state ("");
 451                 }
 452         }
 453 }
 454
 455 ARDOUR_UI::~ARDOUR_UI ()
 456 {
 457         delete keyboard;
 458         delete editor;
 459         delete mixer;
 460         delete add_route_dialog;
 461 }
 462
 463 void
 464 ARDOUR_UI::pop_back_splash (Gtk::Window& win)
 465 {
 466         if (Splash::instance()) {
 467                 Splash::instance()->pop_back_for (win);
 468         }
 469 }
 470
 471 gint
 472 ARDOUR_UI::configure_timeout ()
 473 {
 474         if (last_configure_time == 0) {
 475                 /* no configure events yet */
 476                 return true;
 477         }
 478
 479         /* force a gap of 0.5 seconds since the last configure event
 480          */
 481
 482         if (get_microseconds() - last_configure_time < 500000) {
 483                 return true;
 484         } else {
 485                 have_configure_timeout = false;
 486                 save_ardour_state ();
 487                 return false;
 488         }
 489 }
 490
 491 gboolean
 492 ARDOUR_UI::configure_handler (GdkEventConfigure* /*conf*/)
 493 {
 494         if (have_configure_timeout) {
 495                 last_configure_time = get_microseconds();
 496         } else {
 497                 Glib::signal_timeout().connect (sigc::mem_fun(*this, &ARDOUR_UI::configure_timeout), 100);
 498                 have_configure_timeout = true;
 499         }
 500
 501         return FALSE;
 502 }
 503
 504 void
 505 ARDOUR_UI::set_transport_controllable_state (const XMLNode& node)
 506 {
 507         const XMLProperty* prop;
 508
 509         if ((prop = node.property ("roll")) != 0) {
 510                 roll_controllable->set_id (prop->value());
 511         }
 512         if ((prop = node.property ("stop")) != 0) {
 513                 stop_controllable->set_id (prop->value());
 514         }
 515         if ((prop = node.property ("goto-start")) != 0) {
 516                 goto_start_controllable->set_id (prop->value());
 517         }
 518         if ((prop = node.property ("goto-end")) != 0) {
 519                 goto_end_controllable->set_id (prop->value());
 520         }
 521         if ((prop = node.property ("auto-loop")) != 0) {
 522                 auto_loop_controllable->set_id (prop->value());
 523         }
 524         if ((prop = node.property ("play-selection")) != 0) {
 525                 play_selection_controllable->set_id (prop->value());
 526         }
 527         if ((prop = node.property ("rec")) != 0) {
 528                 rec_controllable->set_id (prop->value());
 529         }
 530         if ((prop = node.property ("shuttle")) != 0) {
 531                 shuttle_box->controllable()->set_id (prop->value());
 532         }
 533 }
 534
 535 XMLNode&
 536 ARDOUR_UI::get_transport_controllable_state ()
 537 {
 538         XMLNode* node = new XMLNode(X_("TransportControllables"));
 539         char buf[64];
 540
 541         roll_controllable->id().print (buf, sizeof (buf));
 542         node->add_property (X_("roll"), buf);
 543         stop_controllable->id().print (buf, sizeof (buf));
 544         node->add_property (X_("stop"), buf);
 545         goto_start_controllable->id().print (buf, sizeof (buf));
 546         node->add_property (X_("goto_start"), buf);
 547         goto_end_controllable->id().print (buf, sizeof (buf));
 548         node->add_property (X_("goto_end"), buf);
 549         auto_loop_controllable->id().print (buf, sizeof (buf));
 550         node->add_property (X_("auto_loop"), buf);
 551         play_selection_controllable->id().print (buf, sizeof (buf));
 552         node->add_property (X_("play_selection"), buf);
 553         rec_controllable->id().print (buf, sizeof (buf));
 554         node->add_property (X_("rec"), buf);
 555         shuttle_box->controllable()->id().print (buf, sizeof (buf));
 556         node->add_property (X_("shuttle"), buf);
 557
 558         return *node;
 559 }
 560
 561
 562 gint
 563 ARDOUR_UI::autosave_session ()
 564 {
 565         if (g_main_depth() > 1) {
 566                 /* inside a recursive main loop,
 567                    give up because we may not be able to
 568                    take a lock.
 569                 */
 570                 return 1;
 571         }
 572
 573         if (!Config->get_periodic_safety_backups()) {
 574                 return 1;
 575         }
 576
 577         if (_session) {
 578                 _session->maybe_write_autosave();
 579         }
 580
 581         return 1;
 582 }
 583
 584 void
 585 ARDOUR_UI::update_autosave ()
 586 {
 587         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::update_autosave)
 588
 589         if (_session && _session->dirty()) {
 590                 if (_autosave_connection.connected()) {
 591                         _autosave_connection.disconnect();
 592                 }
 593
 594                 _autosave_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &ARDOUR_UI::autosave_session),
 595                                 Config->get_periodic_safety_backup_interval() * 1000);
 596
 597         } else {
 598                 if (_autosave_connection.connected()) {
 599                         _autosave_connection.disconnect();
 600                 }
 601         }
 602 }
 603
 604 void
 605 ARDOUR_UI::startup ()
 606 {
 607         Application* app = Application::instance ();
 608
 609         app->ShouldQuit.connect (sigc::mem_fun (*this, &ARDOUR_UI::queue_finish));
 610         app->ShouldLoad.connect (sigc::mem_fun (*this, &ARDOUR_UI::idle_load));
 611
 612 #ifdef PHONE_HOME
 613         call_the_mothership (VERSIONSTRING);
 614 #endif
 615
 616         app->ready ();
 617
 618         if (get_session_parameters (true, ARDOUR_COMMAND_LINE::new_session, ARDOUR_COMMAND_LINE::load_template)) {
 619                 exit (1);
 620         }
 621
 622         use_config ();
 623
 624         goto_editor_window ();
 625
 626         /* Add the window proxies here; their addition may cause windows to be opened, and we want them
 627            to be opened on top of the editor window that goto_editor_window() just opened.
 628         */
 629         add_window_proxy (location_ui);
 630         add_window_proxy (big_clock_window);
 631         for (ARDOUR::DataType::iterator i = ARDOUR::DataType::begin(); i != ARDOUR::DataType::end(); ++i) {
 632                 add_window_proxy (_global_port_matrix[*i]);
 633         }
 634
 635         /* We have to do this here since goto_editor_window() ends up calling show_all() on the
 636          * editor window, and we may want stuff to be hidden.
 637          */
 638         _status_bar_visibility.update ();
 639
 640         BootMessage (string_compose (_("%1 is ready for use"), PROGRAM_NAME));
 641 }
 642
 643 void
 644 ARDOUR_UI::no_memory_warning ()
 645 {
 646         XMLNode node (X_("no-memory-warning"));
 647         Config->add_instant_xml (node);
 648 }
 649
 650 void
 651 ARDOUR_UI::check_memory_locking ()
 652 {
 653 #ifdef __APPLE__
 654         /* OS X doesn't support mlockall(2), and so testing for memory locking capability there is pointless */
 655         return;
 656 #else // !__APPLE__
 657
 658         XMLNode* memory_warning_node = Config->instant_xml (X_("no-memory-warning"));
 659
 660         if (engine->is_realtime() && memory_warning_node == 0) {
 661
 662                 struct rlimit limits;
 663                 int64_t ram;
 664                 long pages, page_size;
 665
 666                 if ((page_size = sysconf (_SC_PAGESIZE)) < 0 ||(pages = sysconf (_SC_PHYS_PAGES)) < 0) {
 667                         ram = 0;
 668                 } else {
 669                         ram = (int64_t) pages * (int64_t) page_size;
 670                 }
 671
 672                 if (getrlimit (RLIMIT_MEMLOCK, &limits)) {
 673                         return;
 674                 }
 675
 676                 if (limits.rlim_cur != RLIM_INFINITY) {
 677
 678                         if (ram == 0 || ((double) limits.rlim_cur / ram) < 0.75) {
 679
 680                                 MessageDialog msg (
 681                                         string_compose (
 682                                                 _("WARNING: Your system has a limit for maximum amount of locked memory. "
 683                                                   "This might cause %1 to run out of memory before your system "
 684                                                   "runs out of memory. \n\n"
 685                                                   "You can view the memory limit with 'ulimit -l', "
 686                                                   "and it is normally controlled by /etc/security/limits.conf"),
 687                                                 PROGRAM_NAME).c_str());
 688
 689                                 msg.set_default_response (RESPONSE_OK);
 690
 691                                 VBox* vbox = msg.get_vbox();
 692                                 HBox hbox;
 693                                 CheckButton cb (_("Do not show this window again"));
 694
 695                                 cb.signal_toggled().connect (sigc::mem_fun (*this, &ARDOUR_UI::no_memory_warning));
 696
 697                                 hbox.pack_start (cb, true, false);
 698                                 vbox->pack_start (hbox);
 699                                 cb.show();
 700                                 vbox->show();
 701                                 hbox.show ();
 702
 703                                 pop_back_splash (msg);
 704
 705                                 editor->ensure_float (msg);
 706                                 msg.run ();
 707                         }
 708                 }
 709         }
 710 #endif // !__APPLE__
 711 }
 712
 713
 714 void
 715 ARDOUR_UI::queue_finish ()
 716 {
 717         Glib::signal_idle().connect (mem_fun (*this, &ARDOUR_UI::idle_finish));
 718 }
 719
 720 bool
 721 ARDOUR_UI::idle_finish ()
 722 {
 723         finish ();
 724         return false; /* do not call again */
 725 }
 726
 727 void
 728 ARDOUR_UI::finish()
 729 {
 730         if (_session) {
 731
 732                 if (_session->dirty()) {
 733                         vector<string> actions;
 734                         actions.push_back (_("Don't quit"));
 735                         actions.push_back (_("Just quit"));
 736                         actions.push_back (_("Save and quit"));
 737                         switch (ask_about_saving_session(actions)) {
 738                         case -1:
 739                                 return;
 740                                 break;
 741                         case 1:
 742                                 /* use the default name */
 743                                 if (save_state_canfail ("")) {
 744                                         /* failed - don't quit */
 745                                         MessageDialog msg (*editor,
 746                                                            string_compose (_("\
 747 %1 was unable to save your session.\n\n\
 748 If you still wish to quit, please use the\n\n\
 749 \"Just quit\" option."), PROGRAM_NAME));
 750                                         pop_back_splash(msg);
 751                                         msg.run ();
 752                                         return;
 753                                 }
 754                                 break;
 755                         case 0:
 756                                 break;
 757                         }
 758                 }
 759
 760                 second_connection.disconnect ();
 761                 point_one_second_connection.disconnect ();
 762                 point_oh_five_second_connection.disconnect ();
 763                 point_zero_one_second_connection.disconnect();
 764         }
 765
 766         /* Save state before deleting the session, as that causes some
 767            windows to be destroyed before their visible state can be
 768            saved.
 769         */
 770         save_ardour_state ();
 771
 772         loading_message (string_compose (_("Please wait while %1 cleans up..."), PROGRAM_NAME));
 773
 774         if (_session) {
 775                 // _session->set_deletion_in_progress ();
 776                 _session->set_clean ();
 777                 _session->remove_pending_capture_state ();
 778                 delete _session;
 779                 _session = 0;
 780         }
 781
 782         ArdourDialog::close_all_dialogs ();
 783         engine->stop (true);
 784         quit ();
 785 }
 786
 787 int
 788 ARDOUR_UI::ask_about_saving_session (const vector<string>& actions)
 789 {
 790         ArdourDialog window (_("Unsaved Session"));
 791         Gtk::HBox dhbox;  // the hbox for the image and text
 792         Gtk::Label  prompt_label;
 793         Gtk::Image* dimage = manage (new Gtk::Image(Stock::DIALOG_WARNING,  Gtk::ICON_SIZE_DIALOG));
 794
 795         string msg;
 796
 797         assert (actions.size() >= 3);
 798
 799         window.add_button (actions[0], RESPONSE_REJECT);
 800         window.add_button (actions[1], RESPONSE_APPLY);
 801         window.add_button (actions[2], RESPONSE_ACCEPT);
 802
 803         window.set_default_response (RESPONSE_ACCEPT);
 804
 805         Gtk::Button noquit_button (msg);
 806         noquit_button.set_name ("EditorGTKButton");
 807
 808         string prompt;
 809
 810         if (_session->snap_name() == _session->name()) {
 811                 prompt = string_compose(_("The session \"%1\"\nhas not been saved.\n\nAny changes made this time\nwill be lost unless you save it.\n\nWhat do you want to do?"),
 812                                         _session->snap_name());
 813         } else {
 814                 prompt = string_compose(_("The snapshot \"%1\"\nhas not been saved.\n\nAny changes made this time\nwill be lost unless you save it.\n\nWhat do you want to do?"),
 815                                         _session->snap_name());
 816         }
 817
 818         prompt_label.set_text (prompt);
 819         prompt_label.set_name (X_("PrompterLabel"));
 820         prompt_label.set_alignment(ALIGN_LEFT, ALIGN_TOP);
 821
 822         dimage->set_alignment(ALIGN_CENTER, ALIGN_TOP);
 823         dhbox.set_homogeneous (false);
 824         dhbox.pack_start (*dimage, false, false, 5);
 825         dhbox.pack_start (prompt_label, true, false, 5);
 826         window.get_vbox()->pack_start (dhbox);
 827
 828         window.set_name (_("Prompter"));
 829         window.set_position (Gtk::WIN_POS_MOUSE);
 830         window.set_modal (true);
 831         window.set_resizable (false);
 832
 833         dhbox.show();
 834         prompt_label.show();
 835         dimage->show();
 836         window.show();
 837         window.set_keep_above (true);
 838         window.present ();
 839
 840         ResponseType r = (ResponseType) window.run();
 841
 842         window.hide ();
 843
 844         switch (r) {
 845         case RESPONSE_ACCEPT: // save and get out of here
 846                 return 1;
 847         case RESPONSE_APPLY:  // get out of here
 848                 return 0;
 849         default:
 850                 break;
 851         }
 852
 853         return -1;
 854 }
 855
 856
 857 gint
 858 ARDOUR_UI::every_second ()
 859 {
 860         update_cpu_load ();
 861         update_buffer_load ();
 862         update_disk_space ();
 863         update_timecode_format ();
 864         return TRUE;
 865 }
 866
 867 gint
 868 ARDOUR_UI::every_point_one_seconds ()
 869 {
 870         shuttle_box->update_speed_display ();
 871         RapidScreenUpdate(); /* EMIT_SIGNAL */
 872         return TRUE;
 873 }
 874
 875 gint
 876 ARDOUR_UI::every_point_zero_one_seconds ()
 877 {
 878         // august 2007: actual update frequency: 40Hz, not 100Hz
 879
 880         SuperRapidScreenUpdate(); /* EMIT_SIGNAL */
 881         return TRUE;
 882 }
 883
 884 void
 885 ARDOUR_UI::update_sample_rate (framecnt_t)
 886 {
 887         char buf[64];
 888
 889         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::update_sample_rate, ignored)
 890
 891         if (!engine->connected()) {
 892
 893                 snprintf (buf, sizeof (buf), "%s", _("disconnected"));
 894
 895         } else {
 896
 897                 framecnt_t rate = engine->frame_rate();
 898
 899                 if (fmod (rate, 1000.0) != 0.0) {
 900                         snprintf (buf, sizeof (buf), _("JACK: <span foreground=\"green\">%.1f kHz / %4.1f ms</span>"),
 901                                   (float) rate/1000.0f,
 902                                   (engine->frames_per_cycle() / (float) rate) * 1000.0f);
 903                 } else {
 904                         snprintf (buf, sizeof (buf), _("JACK: <span foreground=\"green\">%" PRId64 " kHz / %4.1f ms</span>"),
 905                                   rate/1000,
 906                                   (engine->frames_per_cycle() / (float) rate) * 1000.0f);
 907                 }
 908         }
 909
 910         sample_rate_label.set_markup (buf);
 911 }
 912
 913 void
 914 ARDOUR_UI::update_format ()
 915 {
 916         if (!_session) {
 917                 format_label.set_text ("");
 918                 return;
 919         }
 920
 921         stringstream s;
 922         s << _("File:") << X_(" <span foreground=\"green\">");
 923
 924         switch (_session->config.get_native_file_header_format ()) {
 925         case BWF:
 926                 s << _("BWF");
 927                 break;
 928         case WAVE:
 929                 s << _("WAV");
 930                 break;
 931         case WAVE64:
 932                 s << _("WAV64");
 933                 break;
 934         case CAF:
 935                 s << _("CAF");
 936                 break;
 937         case AIFF:
 938                 s << _("AIFF");
 939                 break;
 940         case iXML:
 941                 s << _("iXML");
 942                 break;
 943         case RF64:
 944                 s << _("RF64");
 945                 break;
 946         }
 947
 948         s << " ";
 949
 950         switch (_session->config.get_native_file_data_format ()) {
 951         case FormatFloat:
 952                 s << _("32-float");
 953                 break;
 954         case FormatInt24:
 955                 s << _("24-int");
 956                 break;
 957         case FormatInt16:
 958                 s << _("16-int");
 959                 break;
 960         }
 961
 962         s << X_("</span>");
 963
 964         format_label.set_markup (s.str ());
 965 }
 966
 967 void
 968 ARDOUR_UI::update_cpu_load ()
 969 {
 970         char buf[64];
 971
 972         /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
 973            should also be changed.
 974         */
 975
 976         float const c = engine->get_cpu_load ();
 977         snprintf (buf, sizeof (buf), _("DSP: <span foreground=\"%s\">%5.1f%%</span>"), c >= 90 ? X_("red") : X_("green"), c);
 978         cpu_load_label.set_markup (buf);
 979 }
 980
 981 void
 982 ARDOUR_UI::update_buffer_load ()
 983 {
 984         char buf[256];
 985
 986         uint32_t const playback = _session ? _session->playback_load () : 100;
 987         uint32_t const capture = _session ? _session->capture_load () : 100;
 988
 989         /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
 990            should also be changed.
 991         */
 992
 993         if (_session) {
 994                 snprintf (
 995                         buf, sizeof (buf),
 996                         _("Buffers: <span foreground=\"green\">p:</span><span foreground=\"%s\">%" PRIu32 "%%</span> "
 997                                    "<span foreground=\"green\">c:</span><span foreground=\"%s\">%" PRIu32 "%%</span>"),
 998                         playback <= 5 ? X_("red") : X_("green"),
 999                         playback,
1000                         capture <= 5 ? X_("red") : X_("green"),
1001                         capture
1002                         );
1003
1004                 buffer_load_label.set_markup (buf);
1005         } else {
1006                 buffer_load_label.set_text ("");
1007         }
1008 }
1009
1010 void
1011 ARDOUR_UI::count_recenabled_streams (Route& route)
1012 {
1013         Track* track = dynamic_cast<Track*>(&route);
1014         if (track && track->record_enabled()) {
1015                 rec_enabled_streams += track->n_inputs().n_total();
1016         }
1017 }
1018
1019 void
1020 ARDOUR_UI::update_disk_space()
1021 {
1022         if (_session == 0) {
1023                 return;
1024         }
1025
1026         boost::optional<framecnt_t> opt_frames = _session->available_capture_duration();
1027         char buf[64];
1028         framecnt_t fr = _session->frame_rate();
1029
1030         if (!opt_frames) {
1031                 /* Available space is unknown */
1032                 snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">Unknown</span>"));
1033         } else if (opt_frames.get_value_or (0) == max_framecnt) {
1034                 snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">24hrs+</span>"));
1035         } else {
1036                 rec_enabled_streams = 0;
1037                 _session->foreach_route (this, &ARDOUR_UI::count_recenabled_streams);
1038
1039                 framecnt_t frames = opt_frames.get_value_or (0);
1040
1041                 if (rec_enabled_streams) {
1042                         frames /= rec_enabled_streams;
1043                 }
1044
1045                 int hrs;
1046                 int mins;
1047                 int secs;
1048
1049                 hrs  = frames / (fr * 3600);
1050
1051                 if (hrs > 24) {
1052                         snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">&gt;24 hrs</span>"));
1053                 } else {
1054                         frames -= hrs * fr * 3600;
1055                         mins = frames / (fr * 60);
1056                         frames -= mins * fr * 60;
1057                         secs = frames / fr;
1058
1059                         bool const low = (hrs == 0 && mins <= 30);
1060
1061                         snprintf (
1062                                 buf, sizeof(buf),
1063                                 _("Disk: <span foreground=\"%s\">%02dh:%02dm:%02ds</span>"),
1064                                 low ? X_("red") : X_("green"),
1065                                 hrs, mins, secs
1066                                 );
1067                 }
1068         }
1069
1070         disk_space_label.set_markup (buf);
1071 }
1072
1073 void
1074 ARDOUR_UI::update_timecode_format ()
1075 {
1076         char buf[64];
1077
1078         if (_session) {
1079                 bool matching;
1080                 TimecodeSlave* tcslave;
1081                 SyncSource sync_src = Config->get_sync_source();
1082
1083                 if ((sync_src == LTC || sync_src == MTC) && (tcslave = dynamic_cast<TimecodeSlave*>(_session->slave())) != 0) {
1084                         matching = (tcslave->apparent_timecode_format() == _session->config.get_timecode_format());
1085                 } else {
1086                         matching = true;
1087                 }
1088
1089                 snprintf (buf, sizeof (buf), S_("Timecode|TC: <span foreground=\"%s\">%s</span>"),
1090                           matching ? X_("green") : X_("red"),
1091                           Timecode::timecode_format_name (_session->config.get_timecode_format()).c_str());
1092         } else {
1093                 snprintf (buf, sizeof (buf), "TC: n/a");
1094         }
1095
1096         timecode_format_label.set_markup (buf);
1097 }
1098
1099 gint
1100 ARDOUR_UI::update_wall_clock ()
1101 {
1102         time_t now;
1103         struct tm *tm_now;
1104         char buf[16];
1105
1106         time (&now);
1107         tm_now = localtime (&now);
1108
1109         sprintf (buf, "%02d:%02d", tm_now->tm_hour, tm_now->tm_min);
1110         wall_clock_label.set_text (buf);
1111
1112         return TRUE;
1113 }
1114
1115 void
1116 ARDOUR_UI::redisplay_recent_sessions ()
1117 {
1118         std::vector<std::string> session_directories;
1119         RecentSessionsSorter cmp;
1120
1121         recent_session_display.set_model (Glib::RefPtr<TreeModel>(0));
1122         recent_session_model->clear ();
1123
1124         ARDOUR::RecentSessions rs;
1125         ARDOUR::read_recent_sessions (rs);
1126
1127         if (rs.empty()) {
1128                 recent_session_display.set_model (recent_session_model);
1129                 return;
1130         }
1131
1132         // sort them alphabetically
1133         sort (rs.begin(), rs.end(), cmp);
1134
1135         for (ARDOUR::RecentSessions::iterator i = rs.begin(); i != rs.end(); ++i) {
1136                 session_directories.push_back ((*i).second);
1137         }
1138
1139         for (vector<std::string>::const_iterator i = session_directories.begin();
1140                         i != session_directories.end(); ++i)
1141         {
1142                 std::vector<std::string> state_file_paths;
1143
1144                 // now get available states for this session
1145
1146                 get_state_files_in_directory (*i, state_file_paths);
1147
1148                 vector<string*>* states;
1149                 vector<const gchar*> item;
1150                 string fullpath = *i;
1151
1152                 /* remove any trailing / */
1153
1154                 if (fullpath[fullpath.length() - 1] == '/') {
1155                         fullpath = fullpath.substr (0, fullpath.length() - 1);
1156                 }
1157
1158                 /* check whether session still exists */
1159                 if (!Glib::file_test(fullpath.c_str(), Glib::FILE_TEST_EXISTS)) {
1160                         /* session doesn't exist */
1161                         continue;
1162                 }
1163
1164                 /* now get available states for this session */
1165
1166                 if ((states = Session::possible_states (fullpath)) == 0) {
1167                         /* no state file? */
1168                         continue;
1169                 }
1170
1171                 std::vector<string> state_file_names(get_file_names_no_extension (state_file_paths));
1172
1173                 Gtk::TreeModel::Row row = *(recent_session_model->append());
1174
1175                 row[recent_session_columns.visible_name] = Glib::path_get_basename (fullpath);
1176                 row[recent_session_columns.fullpath] = fullpath;
1177
1178                 if (state_file_names.size() > 1) {
1179
1180                         // add the children
1181
1182                         for (std::vector<std::string>::iterator i2 = state_file_names.begin();
1183                                         i2 != state_file_names.end(); ++i2)
1184                         {
1185
1186                                 Gtk::TreeModel::Row child_row = *(recent_session_model->append (row.children()));
1187
1188                                 child_row[recent_session_columns.visible_name] = *i2;
1189                                 child_row[recent_session_columns.fullpath] = fullpath;
1190                         }
1191                 }
1192         }
1193
1194         recent_session_display.set_tooltip_column(1); // recent_session_columns.fullpath
1195         recent_session_display.set_model (recent_session_model);
1196 }
1197
1198 void
1199 ARDOUR_UI::build_session_selector ()
1200 {
1201         session_selector_window = new ArdourDialog (_("Recent Sessions"));
1202
1203         Gtk::ScrolledWindow *scroller = manage (new Gtk::ScrolledWindow);
1204
1205         session_selector_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
1206         session_selector_window->add_button (Stock::OPEN, RESPONSE_ACCEPT);
1207         session_selector_window->set_default_response (RESPONSE_ACCEPT);
1208         recent_session_model = TreeStore::create (recent_session_columns);
1209         recent_session_display.set_model (recent_session_model);
1210         recent_session_display.append_column (_("Recent Sessions"), recent_session_columns.visible_name);
1211         recent_session_display.set_headers_visible (false);
1212         recent_session_display.get_selection()->set_mode (SELECTION_BROWSE);
1213         recent_session_display.signal_row_activated().connect (sigc::mem_fun (*this, &ARDOUR_UI::recent_session_row_activated));
1214
1215         scroller->add (recent_session_display);
1216         scroller->set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1217
1218         session_selector_window->set_name ("SessionSelectorWindow");
1219         session_selector_window->set_size_request (200, 400);
1220         session_selector_window->get_vbox()->pack_start (*scroller);
1221
1222         recent_session_display.show();
1223         scroller->show();
1224 }
1225
1226 void
1227 ARDOUR_UI::recent_session_row_activated (const TreePath& /*path*/, TreeViewColumn* /*col*/)
1228 {
1229         session_selector_window->response (RESPONSE_ACCEPT);
1230 }
1231
1232 void
1233 ARDOUR_UI::open_recent_session ()
1234 {
1235         bool can_return = (_session != 0);
1236
1237         if (session_selector_window == 0) {
1238                 build_session_selector ();
1239         }
1240
1241         redisplay_recent_sessions ();
1242
1243         while (true) {
1244
1245                 session_selector_window->set_position (WIN_POS_MOUSE);
1246
1247                 ResponseType r = (ResponseType) session_selector_window->run ();
1248
1249                 switch (r) {
1250                 case RESPONSE_ACCEPT:
1251                         break;
1252                 default:
1253                         if (can_return) {
1254                                 session_selector_window->hide();
1255                                 return;
1256                         } else {
1257                                 exit (1);
1258                         }
1259                 }
1260
1261                 if (recent_session_display.get_selection()->count_selected_rows() == 0) {
1262                         continue;
1263                 }
1264
1265                 session_selector_window->hide();
1266
1267                 Gtk::TreeModel::iterator i = recent_session_display.get_selection()->get_selected();
1268
1269                 if (i == recent_session_model->children().end()) {
1270                         return;
1271                 }
1272
1273                 std::string path = (*i)[recent_session_columns.fullpath];
1274                 std::string state = (*i)[recent_session_columns.visible_name];
1275
1276                 _session_is_new = false;
1277
1278                 if (load_session (path, state) == 0) {
1279                         break;
1280                 }
1281
1282                 can_return = false;
1283         }
1284 }
1285
1286 bool
1287 ARDOUR_UI::check_audioengine ()
1288 {
1289         if (engine) {
1290                 if (!engine->connected()) {
1291                         MessageDialog msg (string_compose (
1292                                                    _("%1 is not connected to JACK\n"
1293                                                      "You cannot open or close sessions in this condition"),
1294                                                    PROGRAM_NAME));
1295                         pop_back_splash (msg);
1296                         msg.run ();
1297                         return false;
1298                 }
1299                 return true;
1300         } else {
1301                 return false;
1302         }
1303 }
1304
1305 void
1306 ARDOUR_UI::open_session ()
1307 {
1308         if (!check_audioengine()) {
1309                 return;
1310
1311         }
1312
1313         /* popup selector window */
1314
1315         if (open_session_selector == 0) {
1316
1317                 /* ardour sessions are folders */
1318
1319                 open_session_selector = new Gtk::FileChooserDialog (_("Open Session"), FILE_CHOOSER_ACTION_OPEN);
1320                 open_session_selector->add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
1321                 open_session_selector->add_button (Gtk::Stock::OPEN, Gtk::RESPONSE_ACCEPT);
1322                 open_session_selector->set_default_response(Gtk::RESPONSE_ACCEPT);
1323
1324                 if (_session) {
1325                         string session_parent_dir = Glib::path_get_dirname(_session->path());
1326                         string::size_type last_dir_sep = session_parent_dir.rfind(G_DIR_SEPARATOR);
1327                         session_parent_dir = session_parent_dir.substr(0, last_dir_sep);
1328                         open_session_selector->set_current_folder(session_parent_dir);
1329                 } else {
1330                         open_session_selector->set_current_folder(Config->get_default_session_parent_dir());
1331                 }
1332
1333                 open_session_selector->add_shortcut_folder (Config->get_default_session_parent_dir());
1334
1335                 FileFilter session_filter;
1336                 session_filter.add_pattern ("*.ardour");
1337                 session_filter.set_name (string_compose (_("%1 sessions"), PROGRAM_NAME));
1338                 open_session_selector->add_filter (session_filter);
1339                 open_session_selector->set_filter (session_filter);
1340         }
1341
1342         int response = open_session_selector->run();
1343         open_session_selector->hide ();
1344
1345         switch (response) {
1346         case RESPONSE_ACCEPT:
1347                 break;
1348         default:
1349                 open_session_selector->hide();
1350                 return;
1351         }
1352
1353         open_session_selector->hide();
1354         string session_path = open_session_selector->get_filename();
1355         string path, name;
1356         bool isnew;
1357
1358         if (session_path.length() > 0) {
1359                 if (ARDOUR::find_session (session_path, path, name, isnew) == 0) {
1360                         _session_is_new = isnew;
1361                         load_session (path, name);
1362                 }
1363         }
1364 }
1365
1366
1367 void
1368 ARDOUR_UI::session_add_mixed_track (const ChanCount& input, const ChanCount& output, RouteGroup* route_group,
1369                                     uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
1370 {
1371         list<boost::shared_ptr<MidiTrack> > tracks;
1372
1373         if (_session == 0) {
1374                 warning << _("You cannot add a track without a session already loaded.") << endmsg;
1375                 return;
1376         }
1377
1378         try {
1379                 tracks = _session->new_midi_track (input, output, instrument, ARDOUR::Normal, route_group, how_many, name_template);
1380
1381                 if (tracks.size() != how_many) {
1382                         if (how_many == 1) {
1383                                 error << _("could not create a new mixed track") << endmsg;
1384                         } else {
1385                                 error << string_compose (_("could not create %1 new mixed tracks"), how_many) << endmsg;
1386                         }
1387                 }
1388         }
1389
1390         catch (...) {
1391                 MessageDialog msg (*editor,
1392                                    string_compose (_("There are insufficient JACK ports available\n\
1393 to create a new track or bus.\n\
1394 You should save %1, exit and\n\
1395 restart JACK with more ports."), PROGRAM_NAME));
1396                 msg.run ();
1397         }
1398 }
1399
1400
1401 void
1402 ARDOUR_UI::session_add_midi_route (bool disk, RouteGroup* route_group, uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
1403 {
1404         ChanCount one_midi_channel;
1405         one_midi_channel.set (DataType::MIDI, 1);
1406
1407         if (disk) {
1408                 session_add_mixed_track (one_midi_channel, one_midi_channel, route_group, how_many, name_template, instrument);
1409         }
1410 }
1411
1412 void
1413 ARDOUR_UI::session_add_audio_route (
1414         bool track,
1415         int32_t input_channels,
1416         int32_t output_channels,
1417         ARDOUR::TrackMode mode,
1418         RouteGroup* route_group,
1419         uint32_t how_many,
1420         string const & name_template
1421         )
1422 {
1423         list<boost::shared_ptr<AudioTrack> > tracks;
1424         RouteList routes;
1425
1426         if (_session == 0) {
1427                 warning << _("You cannot add a track or bus without a session already loaded.") << endmsg;
1428                 return;
1429         }
1430
1431         try {
1432                 if (track) {
1433                         tracks = _session->new_audio_track (input_channels, output_channels, mode, route_group, how_many, name_template);
1434
1435                         if (tracks.size() != how_many) {
1436                                 if (how_many == 1) {
1437                                         error << _("could not create a new audio track") << endmsg;
1438                                 } else {
1439                                         error << string_compose (_("could only create %1 of %2 new audio %3"),
1440                                                                  tracks.size(), how_many, (track ? _("tracks") : _("busses"))) << endmsg;
1441                                 }
1442                         }
1443
1444                 } else {
1445
1446                         routes = _session->new_audio_route (input_channels, output_channels, route_group, how_many, name_template);
1447
1448                         if (routes.size() != how_many) {
1449                                 if (how_many == 1) {
1450                                         error << _("could not create a new audio bus") << endmsg;
1451                                 } else {
1452                                         error << string_compose (_("could not create %1 new audio busses"), how_many) << endmsg;
1453                                 }
1454                         }
1455                 }
1456         }
1457
1458         catch (...) {
1459                 MessageDialog msg (*editor,
1460                                    string_compose (_("There are insufficient JACK ports available\n\
1461 to create a new track or bus.\n\
1462 You should save %1, exit and\n\
1463 restart JACK with more ports."), PROGRAM_NAME));
1464                 pop_back_splash (msg);
1465                 msg.run ();
1466         }
1467 }
1468
1469 void
1470 ARDOUR_UI::transport_goto_start ()
1471 {
1472         if (_session) {
1473                 _session->goto_start();
1474
1475                 /* force displayed area in editor to start no matter
1476                    what "follow playhead" setting is.
1477                 */
1478
1479                 if (editor) {
1480                         editor->center_screen (_session->current_start_frame ());
1481                 }
1482         }
1483 }
1484
1485 void
1486 ARDOUR_UI::transport_goto_zero ()
1487 {
1488         if (_session) {
1489                 _session->request_locate (0);
1490
1491                 /* force displayed area in editor to start no matter
1492                    what "follow playhead" setting is.
1493                 */
1494
1495                 if (editor) {
1496                         editor->reset_x_origin (0);
1497                 }
1498         }
1499 }
1500
1501 void
1502 ARDOUR_UI::transport_goto_wallclock ()
1503 {
1504         if (_session && editor) {
1505
1506                 time_t now;
1507                 struct tm tmnow;
1508                 framepos_t frames;
1509
1510                 time (&now);
1511                 localtime_r (&now, &tmnow);
1512
1513                 frames = tmnow.tm_hour * (60 * 60 * _session->frame_rate());
1514                 frames += tmnow.tm_min * (60 * _session->frame_rate());
1515                 frames += tmnow.tm_sec * _session->frame_rate();
1516
1517                 _session->request_locate (frames, _session->transport_rolling ());
1518
1519                 /* force displayed area in editor to start no matter
1520                    what "follow playhead" setting is.
1521                 */
1522
1523                 if (editor) {
1524                         editor->center_screen (frames);
1525                 }
1526         }
1527 }
1528
1529 void
1530 ARDOUR_UI::transport_goto_end ()
1531 {
1532         if (_session) {
1533                 framepos_t const frame = _session->current_end_frame();
1534                 _session->request_locate (frame);
1535
1536                 /* force displayed area in editor to start no matter
1537                    what "follow playhead" setting is.
1538                 */
1539
1540                 if (editor) {
1541                         editor->center_screen (frame);
1542                 }
1543         }
1544 }
1545
1546 void
1547 ARDOUR_UI::transport_stop ()
1548 {
1549         if (!_session) {
1550                 return;
1551         }
1552
1553         if (_session->is_auditioning()) {
1554                 _session->cancel_audition ();
1555                 return;
1556         }
1557
1558         _session->request_stop (false, true);
1559 }
1560
1561 void
1562 ARDOUR_UI::transport_record (bool roll)
1563 {
1564
1565         if (_session) {
1566                 switch (_session->record_status()) {
1567                 case Session::Disabled:
1568                         if (_session->ntracks() == 0) {
1569                                 MessageDialog msg (*editor, _("Please create one or more tracks before trying to record.\nYou can do this with the \"Add Track or Bus\" option in the Session menu."));
1570                                 msg.run ();
1571                                 return;
1572                         }
1573                         _session->maybe_enable_record ();
1574                         if (roll) {
1575                                 transport_roll ();
1576                         }
1577                         break;
1578                 case Session::Recording:
1579                         if (roll) {
1580                                 _session->request_stop();
1581                         } else {
1582                                 _session->disable_record (false, true);
1583                         }
1584                         break;
1585
1586                 case Session::Enabled:
1587                         _session->disable_record (false, true);
1588                 }
1589         }
1590 }
1591
1592 void
1593 ARDOUR_UI::transport_roll ()
1594 {
1595         if (!_session) {
1596                 return;
1597         }
1598
1599         if (_session->is_auditioning()) {
1600                 return;
1601         }
1602
1603 #if 0
1604         if (_session->config.get_external_sync()) {
1605                 switch (Config->get_sync_source()) {
1606                 case JACK:
1607                         break;
1608                 default:
1609                         /* transport controlled by the master */
1610                         return;
1611                 }
1612         }
1613 #endif
1614
1615         bool rolling = _session->transport_rolling();
1616
1617         if (_session->get_play_loop()) {
1618                 /* XXX it is not possible to just leave seamless loop and keep
1619                    playing at present (nov 4th 2009)
1620                 */
1621                 if (!Config->get_seamless_loop()) {
1622                         _session->request_play_loop (false, true);
1623                 }
1624         } else if (_session->get_play_range () && !Config->get_always_play_range()) {
1625                 /* stop playing a range if we currently are */
1626                 _session->request_play_range (0, true);
1627         }
1628
1629         if (!rolling) {
1630                 _session->request_transport_speed (1.0f);
1631         }
1632 }
1633
1634 bool
1635 ARDOUR_UI::get_smart_mode() const
1636 {
1637         return ( editor->get_smart_mode() );
1638 }
1639
1640
1641 void
1642 ARDOUR_UI::toggle_roll (bool with_abort, bool roll_out_of_bounded_mode)
1643 {
1644
1645         if (!_session) {
1646                 return;
1647         }
1648
1649         if (_session->is_auditioning()) {
1650                 _session->cancel_audition ();
1651                 return;
1652         }
1653
1654         if (_session->config.get_external_sync()) {
1655                 switch (Config->get_sync_source()) {
1656                 case JACK:
1657                         break;
1658                 default:
1659                         /* transport controlled by the master */
1660                         return;
1661                 }
1662         }
1663
1664         bool rolling = _session->transport_rolling();
1665         bool affect_transport = true;
1666
1667         if (rolling && roll_out_of_bounded_mode) {
1668                 /* drop out of loop/range playback but leave transport rolling */
1669                 if (_session->get_play_loop()) {
1670                         if (Config->get_seamless_loop()) {
1671                                 /* the disk buffers contain copies of the loop - we can't
1672                                    just keep playing, so stop the transport. the user
1673                                    can restart as they wish.
1674                                 */
1675                                 affect_transport = true;
1676                         } else {
1677                                 /* disk buffers are normal, so we can keep playing */
1678                                 affect_transport = false;
1679                         }
1680                         _session->request_play_loop (false, true);
1681                 } else if (_session->get_play_range ()) {
1682                         affect_transport = false;
1683                         _session->request_play_range (0, true);
1684                 }
1685         }
1686
1687         if (affect_transport) {
1688                 if (rolling) {
1689                         _session->request_stop (with_abort, true);
1690                 } else {
1691                         if ( Config->get_always_play_range() ) {
1692                                 _session->request_play_range (&editor->get_selection().time, true);
1693                         }
1694
1695                         _session->request_transport_speed (1.0f);
1696                 }
1697         }
1698 }
1699
1700 void
1701 ARDOUR_UI::toggle_session_auto_loop ()
1702 {
1703         Location * looploc = _session->locations()->auto_loop_location();
1704
1705         if (!_session || !looploc) {
1706                 return;
1707         }
1708
1709         if (_session->get_play_loop()) {
1710
1711                 if (_session->transport_rolling()) {
1712
1713                         _session->request_locate (looploc->start(), true);
1714                         _session->request_play_loop (false);
1715
1716                 } else {
1717                         _session->request_play_loop (false);
1718                 }
1719         } else {
1720                 _session->request_play_loop (true);
1721         }
1722
1723         //show the loop markers
1724         looploc->set_hidden (false, this);
1725 }
1726
1727 void
1728 ARDOUR_UI::transport_play_selection ()
1729 {
1730         if (!_session) {
1731                 return;
1732         }
1733
1734         editor->play_selection ();
1735 }
1736
1737 void
1738 ARDOUR_UI::transport_play_preroll ()
1739 {
1740         if (!_session) {
1741                 return;
1742         }
1743         editor->play_with_preroll ();
1744 }
1745
1746 void
1747 ARDOUR_UI::transport_rewind (int option)
1748 {
1749         float current_transport_speed;
1750
1751         if (_session) {
1752                 current_transport_speed = _session->transport_speed();
1753
1754                 if (current_transport_speed >= 0.0f) {
1755                         switch (option) {
1756                         case 0:
1757                                 _session->request_transport_speed (-1.0f);
1758                                 break;
1759                         case 1:
1760                                 _session->request_transport_speed (-4.0f);
1761                                 break;
1762                         case -1:
1763                                 _session->request_transport_speed (-0.5f);
1764                                 break;
1765                         }
1766                 } else {
1767                         /* speed up */
1768                         _session->request_transport_speed (current_transport_speed * 1.5f);
1769                 }
1770         }
1771 }
1772
1773 void
1774 ARDOUR_UI::transport_forward (int option)
1775 {
1776         if (!_session) {
1777                 return;
1778         }
1779
1780         float current_transport_speed = _session->transport_speed();
1781
1782         if (current_transport_speed <= 0.0f) {
1783                 switch (option) {
1784                 case 0:
1785                         _session->request_transport_speed (1.0f);
1786                         break;
1787                 case 1:
1788                         _session->request_transport_speed (4.0f);
1789                         break;
1790                 case -1:
1791                         _session->request_transport_speed (0.5f);
1792                         break;
1793                 }
1794         } else {
1795                 /* speed up */
1796                 _session->request_transport_speed (current_transport_speed * 1.5f);
1797         }
1798 }
1799
1800 void
1801 ARDOUR_UI::toggle_record_enable (uint32_t rid)
1802 {
1803         if (!_session) {
1804                 return;
1805         }
1806
1807         boost::shared_ptr<Route> r;
1808
1809         if ((r = _session->route_by_remote_id (rid)) != 0) {
1810
1811                 Track* t;
1812
1813                 if ((t = dynamic_cast<Track*>(r.get())) != 0) {
1814                         t->set_record_enabled (!t->record_enabled(), this);
1815                 }
1816         }
1817 }
1818
1819 void
1820 ARDOUR_UI::map_transport_state ()
1821 {
1822         if (!_session) {
1823                 auto_loop_button.unset_active_state ();
1824                 play_selection_button.unset_active_state ();
1825                 roll_button.unset_active_state ();
1826                 stop_button.set_active_state (Gtkmm2ext::ExplicitActive);
1827                 return;
1828         }
1829
1830         shuttle_box->map_transport_state ();
1831
1832         float sp = _session->transport_speed();
1833
1834         if (sp != 0.0f) {
1835
1836                 /* we're rolling */
1837
1838                 if (_session->get_play_range()) {
1839
1840                         play_selection_button.set_active_state (Gtkmm2ext::ExplicitActive);
1841                         roll_button.unset_active_state ();
1842                         auto_loop_button.unset_active_state ();
1843
1844                 } else if (_session->get_play_loop ()) {
1845
1846                         auto_loop_button.set_active (true);
1847                         play_selection_button.set_active (false);
1848                         roll_button.set_active (false);
1849
1850                 } else {
1851
1852                         roll_button.set_active (true);
1853                         play_selection_button.set_active (false);
1854                         auto_loop_button.set_active (false);
1855                 }
1856
1857                 if (Config->get_always_play_range()) {
1858                         /* light up both roll and play-selection if they are joined */
1859                         roll_button.set_active (true);
1860                         play_selection_button.set_active (true);
1861                 }
1862
1863                 stop_button.set_active (false);
1864
1865         } else {
1866
1867                 stop_button.set_active (true);
1868                 roll_button.set_active (false);
1869                 play_selection_button.set_active (false);
1870                 auto_loop_button.set_active (false);
1871                 update_disk_space ();
1872         }
1873 }
1874
1875 void
1876 ARDOUR_UI::engine_stopped ()
1877 {
1878         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::engine_stopped)
1879         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, false);
1880         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, true);
1881 }
1882
1883 void
1884 ARDOUR_UI::engine_running ()
1885 {
1886         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::engine_running)
1887         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, true);
1888         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, false);
1889
1890         Glib::RefPtr<Action> action;
1891         const char* action_name = 0;
1892
1893         switch (engine->frames_per_cycle()) {
1894         case 32:
1895                 action_name = X_("JACKLatency32");
1896                 break;
1897         case 64:
1898                 action_name = X_("JACKLatency64");
1899                 break;
1900         case 128:
1901                 action_name = X_("JACKLatency128");
1902                 break;
1903         case 512:
1904                 action_name = X_("JACKLatency512");
1905                 break;
1906         case 1024:
1907                 action_name = X_("JACKLatency1024");
1908                 break;
1909         case 2048:
1910                 action_name = X_("JACKLatency2048");
1911                 break;
1912         case 4096:
1913                 action_name = X_("JACKLatency4096");
1914                 break;
1915         case 8192:
1916                 action_name = X_("JACKLatency8192");
1917                 break;
1918         default:
1919                 /* XXX can we do anything useful ? */
1920                 break;
1921         }
1922
1923         if (action_name) {
1924
1925                 action = ActionManager::get_action (X_("JACK"), action_name);
1926
1927                 if (action) {
1928                         Glib::RefPtr<RadioAction> ract = Glib::RefPtr<RadioAction>::cast_dynamic (action);
1929                         ract->set_active ();
1930                 }
1931         }
1932 }
1933
1934 void
1935 ARDOUR_UI::engine_halted (const char* reason, bool free_reason)
1936 {
1937         if (!Gtkmm2ext::UI::instance()->caller_is_ui_thread()) {
1938                 /* we can't rely on the original string continuing to exist when we are called
1939                    again in the GUI thread, so make a copy and note that we need to
1940                    free it later.
1941                 */
1942                 char *copy = strdup (reason);
1943                 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&ARDOUR_UI::engine_halted, this, copy, true));
1944                 return;
1945         }
1946
1947         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, false);
1948         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, true);
1949
1950         update_sample_rate (0);
1951
1952         string msgstr;
1953
1954         /* if the reason is a non-empty string, it means that the backend was shutdown
1955            rather than just Ardour.
1956         */
1957
1958         if (strlen (reason)) {
1959                 msgstr = string_compose (_("The audio backend (JACK) was shutdown because:\n\n%1"), reason);
1960         } else {
1961                 msgstr = string_compose (_("\
1962 JACK has either been shutdown or it\n\
1963 disconnected %1 because %1\n\
1964 was not fast enough. Try to restart\n\
1965 JACK, reconnect and save the session."), PROGRAM_NAME);
1966         }
1967
1968         MessageDialog msg (*editor, msgstr);
1969         pop_back_splash (msg);
1970         msg.run ();
1971
1972         if (free_reason) {
1973                 free (const_cast<char*> (reason));
1974         }
1975 }
1976
1977 int32_t
1978 ARDOUR_UI::do_engine_start ()
1979 {
1980         try {
1981                 engine->start();
1982         }
1983
1984         catch (...) {
1985                 engine->stop ();
1986                 error << _("Unable to start the session running")
1987                       << endmsg;
1988                 unload_session ();
1989                 return -2;
1990         }
1991
1992         return 0;
1993 }
1994
1995 void
1996 ARDOUR_UI::update_clocks ()
1997 {
1998         if (!editor || !editor->dragging_playhead()) {
1999                 Clock (_session->audible_frame(), false, editor->get_preferred_edit_position()); /* EMIT_SIGNAL */
2000         }
2001 }
2002
2003 void
2004 ARDOUR_UI::start_clocking ()
2005 {
2006         clock_signal_connection = RapidScreenUpdate.connect (sigc::mem_fun(*this, &ARDOUR_UI::update_clocks));
2007 }
2008
2009 void
2010 ARDOUR_UI::stop_clocking ()
2011 {
2012         clock_signal_connection.disconnect ();
2013 }
2014
2015 gint
2016 ARDOUR_UI::_blink (void *arg)
2017 {
2018         ((ARDOUR_UI *) arg)->blink ();
2019         return TRUE;
2020 }
2021
2022 void
2023 ARDOUR_UI::blink ()
2024 {
2025         Blink (blink_on = !blink_on); /* EMIT_SIGNAL */
2026 }
2027
2028 void
2029 ARDOUR_UI::start_blinking ()
2030 {
2031         /* Start the blink signal. Everybody with a blinking widget
2032            uses Blink to drive the widget's state.
2033         */
2034
2035         if (blink_timeout_tag < 0) {
2036                 blink_on = false;
2037                 blink_timeout_tag = g_timeout_add (240, _blink, this);
2038         }
2039 }
2040
2041 void
2042 ARDOUR_UI::stop_blinking ()
2043 {
2044         if (blink_timeout_tag >= 0) {
2045                 g_source_remove (blink_timeout_tag);
2046                 blink_timeout_tag = -1;
2047         }
2048 }
2049
2050
2051 /** Ask the user for the name of a new snapshot and then take it.
2052  */
2053
2054 void
2055 ARDOUR_UI::snapshot_session (bool switch_to_it)
2056 {
2057         ArdourPrompter prompter (true);
2058         string snapname;
2059
2060         prompter.set_name ("Prompter");
2061         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2062         prompter.set_title (_("Take Snapshot"));
2063         prompter.set_prompt (_("Name of new snapshot"));
2064
2065         if (!switch_to_it) {
2066                 char timebuf[128];
2067                 time_t n;
2068                 struct tm local_time;
2069
2070                 time (&n);
2071                 localtime_r (&n, &local_time);
2072                 strftime (timebuf, sizeof(timebuf), "%FT%H.%M.%S", &local_time);
2073                 prompter.set_initial_text (timebuf);
2074         }
2075
2076   again:
2077         switch (prompter.run()) {
2078         case RESPONSE_ACCEPT:
2079         {
2080                 prompter.get_result (snapname);
2081
2082                 bool do_save = (snapname.length() != 0);
2083
2084                 if (do_save) {
2085                         char illegal = Session::session_name_is_legal(snapname);
2086                         if (illegal) {
2087                                 MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
2088                                                      "snapshot names may not contain a '%1' character"), illegal));
2089                                 msg.run ();
2090                                 goto again;
2091                         }
2092                 }
2093
2094                 vector<std::string> p;
2095                 get_state_files_in_directory (_session->session_directory().root_path(), p);
2096                 vector<string> n = get_file_names_no_extension (p);
2097                 if (find (n.begin(), n.end(), snapname) != n.end()) {
2098
2099                         ArdourDialog confirm (_("Confirm Snapshot Overwrite"), true);
2100                         Label m (_("A snapshot already exists with that name.  Do you want to overwrite it?"));
2101                         confirm.get_vbox()->pack_start (m, true, true);
2102                         confirm.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2103                         confirm.add_button (_("Overwrite"), Gtk::RESPONSE_ACCEPT);
2104                         confirm.show_all ();
2105                         switch (confirm.run()) {
2106                         case RESPONSE_CANCEL:
2107                                 do_save = false;
2108                         }
2109                 }
2110
2111                 if (do_save) {
2112                         save_state (snapname, switch_to_it);
2113                 }
2114                 break;
2115         }
2116
2117         default:
2118                 break;
2119         }
2120 }
2121
2122 /** Ask the user for a new session name and then rename the session to it.
2123  */
2124
2125 void
2126 ARDOUR_UI::rename_session ()
2127 {
2128         if (!_session) {
2129                 return;
2130         }
2131
2132         ArdourPrompter prompter (true);
2133         string name;
2134
2135         prompter.set_name ("Prompter");
2136         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2137         prompter.set_title (_("Rename Session"));
2138         prompter.set_prompt (_("New session name"));
2139
2140   again:
2141         switch (prompter.run()) {
2142         case RESPONSE_ACCEPT:
2143         {
2144                 prompter.get_result (name);
2145
2146                 bool do_rename = (name.length() != 0);
2147
2148                 if (do_rename) {
2149                         char illegal = Session::session_name_is_legal (name);
2150
2151                         if (illegal) {
2152                                 MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
2153                                                                      "session names may not contain a '%1' character"), illegal));
2154                                 msg.run ();
2155                                 goto again;
2156                         }
2157
2158                         switch (_session->rename (name)) {
2159                         case -1: {
2160                                 MessageDialog msg (_("That name is already in use by another directory/folder. Please try again."));
2161                                 msg.set_position (WIN_POS_MOUSE);
2162                                 msg.run ();
2163                                 goto again;
2164                                 break;
2165                         }
2166                         case 0:
2167                                 break;
2168                         default: {
2169                                 MessageDialog msg (_("Renaming this session failed.\nThings could be seriously messed up at this point"));
2170                                 msg.set_position (WIN_POS_MOUSE);
2171                                 msg.run ();
2172                                 break;
2173                         }
2174                         }
2175                 }
2176
2177                 break;
2178         }
2179
2180         default:
2181                 break;
2182         }
2183 }
2184
2185 void
2186 ARDOUR_UI::save_state (const string & name, bool switch_to_it)
2187 {
2188         XMLNode* node = new XMLNode (X_("UI"));
2189
2190         for (list<WindowProxyBase*>::iterator i = _window_proxies.begin(); i != _window_proxies.end(); ++i) {
2191                 if (!(*i)->rc_configured()) {
2192                         node->add_child_nocopy (*((*i)->get_state ()));
2193                 }
2194         }
2195
2196         node->add_child_nocopy (gui_object_state->get_state());
2197
2198         _session->add_extra_xml (*node);
2199
2200         save_state_canfail (name, switch_to_it);
2201 }
2202
2203 int
2204 ARDOUR_UI::save_state_canfail (string name, bool switch_to_it)
2205 {
2206         if (_session) {
2207                 int ret;
2208
2209                 if (name.length() == 0) {
2210                         name = _session->snap_name();
2211                 }
2212
2213                 if ((ret = _session->save_state (name, false, switch_to_it)) != 0) {
2214                         return ret;
2215                 }
2216         }
2217
2218         save_ardour_state (); /* XXX cannot fail? yeah, right ... */
2219         return 0;
2220 }
2221
2222 void
2223 ARDOUR_UI::primary_clock_value_changed ()
2224 {
2225         if (_session) {
2226                 _session->request_locate (primary_clock->current_time ());
2227         }
2228 }
2229
2230 void
2231 ARDOUR_UI::big_clock_value_changed ()
2232 {
2233         if (_session) {
2234                 _session->request_locate (big_clock->current_time ());
2235         }
2236 }
2237
2238 void
2239 ARDOUR_UI::secondary_clock_value_changed ()
2240 {
2241         if (_session) {
2242                 _session->request_locate (secondary_clock->current_time ());
2243         }
2244 }
2245
2246 void
2247 ARDOUR_UI::transport_rec_enable_blink (bool onoff)
2248 {
2249         if (_session == 0) {
2250                 return;
2251         }
2252
2253         if (_session->step_editing()) {
2254                 return;
2255         }
2256
2257         Session::RecordState const r = _session->record_status ();
2258         bool const h = _session->have_rec_enabled_track ();
2259
2260         if (r == Session::Enabled || (r == Session::Recording && !h)) {
2261                 if (onoff) {
2262                         rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
2263                 } else {
2264                         rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
2265                 }
2266         } else if (r == Session::Recording && h) {
2267                 rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
2268         } else {
2269                 rec_button.unset_active_state ();
2270         }
2271 }
2272
2273 void
2274 ARDOUR_UI::save_template ()
2275 {
2276         ArdourPrompter prompter (true);
2277         string name;
2278
2279         if (!check_audioengine()) {
2280                 return;
2281         }
2282
2283         prompter.set_name (X_("Prompter"));
2284         prompter.set_title (_("Save Template"));
2285         prompter.set_prompt (_("Name for template:"));
2286         prompter.set_initial_text(_session->name() + _("-template"));
2287         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2288
2289         switch (prompter.run()) {
2290         case RESPONSE_ACCEPT:
2291                 prompter.get_result (name);
2292
2293                 if (name.length()) {
2294                         _session->save_template (name);
2295                 }
2296                 break;
2297
2298         default:
2299                 break;
2300         }
2301 }
2302
2303 void
2304 ARDOUR_UI::edit_metadata ()
2305 {
2306         SessionMetadataEditor dialog;
2307         dialog.set_session (_session);
2308         editor->ensure_float (dialog);
2309         dialog.run ();
2310 }
2311
2312 void
2313 ARDOUR_UI::import_metadata ()
2314 {
2315         SessionMetadataImporter dialog;
2316         dialog.set_session (_session);
2317         editor->ensure_float (dialog);
2318         dialog.run ();
2319 }
2320
2321 bool
2322 ARDOUR_UI::ask_about_loading_existing_session (const std::string& session_path)
2323 {
2324         std::string str = string_compose (_("This session\n%1\nalready exists. Do you want to open it?"), session_path);
2325
2326         MessageDialog msg (str,
2327                            false,
2328                            Gtk::MESSAGE_WARNING,
2329                            Gtk::BUTTONS_YES_NO,
2330                            true);
2331
2332
2333         msg.set_name (X_("OpenExistingDialog"));
2334         msg.set_title (_("Open Existing Session"));
2335         msg.set_wmclass (X_("existing_session"), PROGRAM_NAME);
2336         msg.set_position (Gtk::WIN_POS_MOUSE);
2337         pop_back_splash (msg);
2338
2339         switch (msg.run()) {
2340         case RESPONSE_YES:
2341                 return true;
2342                 break;
2343         }
2344         return false;
2345 }
2346
2347 int
2348 ARDOUR_UI::build_session_from_nsd (const std::string& session_path, const std::string& session_name)
2349 {
2350         BusProfile bus_profile;
2351
2352         if (Profile->get_sae()) {
2353
2354                 bus_profile.master_out_channels = 2;
2355                 bus_profile.input_ac = AutoConnectPhysical;
2356                 bus_profile.output_ac = AutoConnectMaster;
2357                 bus_profile.requested_physical_in = 0; // use all available
2358                 bus_profile.requested_physical_out = 0; // use all available
2359
2360         } else {
2361
2362                 /* get settings from advanced section of NSD */
2363
2364                 if (_startup->create_master_bus()) {
2365                         bus_profile.master_out_channels = (uint32_t) _startup->master_channel_count();
2366                 } else {
2367                         bus_profile.master_out_channels = 0;
2368                 }
2369
2370                 if (_startup->connect_inputs()) {
2371                         bus_profile.input_ac = AutoConnectPhysical;
2372                 } else {
2373                         bus_profile.input_ac = AutoConnectOption (0);
2374                 }
2375
2376                 bus_profile.output_ac = AutoConnectOption (0);
2377
2378                 if (_startup->connect_outputs ()) {
2379                         if (_startup->connect_outs_to_master()) {
2380                                 bus_profile.output_ac = AutoConnectMaster;
2381                         } else if (_startup->connect_outs_to_physical()) {
2382                                 bus_profile.output_ac = AutoConnectPhysical;
2383                         }
2384                 }
2385
2386                 bus_profile.requested_physical_in = (uint32_t) _startup->input_limit_count();
2387                 bus_profile.requested_physical_out = (uint32_t) _startup->output_limit_count();
2388         }
2389
2390         if (build_session (session_path, session_name, bus_profile)) {
2391                 return -1;
2392         }
2393
2394         return 0;
2395 }
2396
2397 void
2398 ARDOUR_UI::idle_load (const std::string& path)
2399 {
2400         if (_session) {
2401                 if (Glib::file_test (path, Glib::FILE_TEST_IS_DIR)) {
2402                         /* /path/to/foo => /path/to/foo, foo */
2403                         load_session (path, basename_nosuffix (path));
2404                 } else {
2405                         /* /path/to/foo/foo.ardour => /path/to/foo, foo */
2406                         load_session (Glib::path_get_dirname (path), basename_nosuffix (path));
2407                 }
2408
2409         } else {
2410                 ARDOUR_COMMAND_LINE::session_name = path;
2411         }
2412 }
2413
2414 /** @param quit_on_cancel true if exit() should be called if the user clicks `cancel' in the new session dialog */
2415 int
2416 ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, string load_template)
2417 {
2418         string session_name;
2419         string session_path;
2420         string template_name;
2421         int ret = -1;
2422         bool likely_new = false;
2423
2424         /* deal with any existing DIRTY session now, rather than later. don't
2425          * treat a non-dirty session this way, so that it stays visible
2426          * as we bring up the new session dialog.
2427          */
2428
2429         if (_session && _session->dirty()) {
2430                 if (unload_session (false)) {
2431                         /* unload cancelled by user */
2432                         return 0;
2433                 }
2434                 ARDOUR_COMMAND_LINE::session_name = "";
2435         }
2436
2437         if (!load_template.empty()) {
2438                 should_be_new = true;
2439                 template_name = load_template;
2440         }
2441
2442         while (ret != 0) {
2443
2444                 if (!ARDOUR_COMMAND_LINE::session_name.empty()) {
2445
2446                         /* if they named a specific statefile, use it, otherwise they are
2447                            just giving a session folder, and we want to use it as is
2448                            to find the session.
2449                         */
2450
2451                         string::size_type suffix = ARDOUR_COMMAND_LINE::session_name.find (statefile_suffix);
2452
2453                         if (suffix != string::npos) {
2454                                 session_path = Glib::path_get_dirname (ARDOUR_COMMAND_LINE::session_name);
2455                                 session_name = ARDOUR_COMMAND_LINE::session_name.substr (0, suffix);
2456                                 session_name = Glib::path_get_basename (session_name);
2457                         } else {
2458                                 session_path = ARDOUR_COMMAND_LINE::session_name;
2459                                 session_name = Glib::path_get_basename (ARDOUR_COMMAND_LINE::session_name);
2460                         }
2461                 } else {
2462                         session_path = "";
2463                         session_name = "";
2464                 }
2465
2466                 delete _startup;
2467                 _startup = new ArdourStartup (should_be_new, session_name, session_path, load_template);
2468
2469                 if (!_startup->ready_without_display()) {
2470                         _startup->present ();
2471                         main().run();
2472                         _startup->hide ();
2473                 }
2474
2475                 switch (_startup->response()) {
2476                 case RESPONSE_OK:
2477                         break;
2478                 default:
2479                         if (quit_on_cancel) {
2480                                 exit (1);
2481                         } else {
2482                                 return ret;
2483                         }
2484                 }
2485
2486                 /* if we run the startup dialog again, offer more than just "new session" */
2487
2488                 should_be_new = false;
2489
2490                 session_name = _startup->session_name (likely_new);
2491
2492                 string::size_type suffix = session_name.find (statefile_suffix);
2493
2494                 if (suffix != string::npos) {
2495                         session_name = session_name.substr (0, suffix);
2496                 }
2497
2498                 /* this shouldn't happen, but we catch it just in case it does */
2499
2500                 if (session_name.empty()) {
2501                         continue;
2502                 }
2503
2504                 if (_startup->use_session_template()) {
2505                         template_name = _startup->session_template_name();
2506                         _session_is_new = true;
2507                 }
2508
2509                 if (session_name[0] == G_DIR_SEPARATOR ||
2510                     (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == G_DIR_SEPARATOR) ||
2511                     (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == G_DIR_SEPARATOR)) {
2512
2513                         /* absolute path or cwd-relative path specified for session name: infer session folder
2514                            from what was given.
2515                         */
2516
2517                         session_path = Glib::path_get_dirname (session_name);
2518                         session_name = Glib::path_get_basename (session_name);
2519
2520                 } else {
2521
2522                         session_path = _startup->session_folder();
2523
2524                         char illegal = Session::session_name_is_legal (session_name);
2525
2526                         if (illegal) {
2527                                 MessageDialog msg (*_startup,
2528                                                    string_compose (_("To ensure compatibility with various systems\n"
2529                                                                      "session names may not contain a '%1' character"),
2530                                                                    illegal));
2531                                 msg.run ();
2532                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2533                                 continue;
2534                         }
2535                 }
2536
2537                 if (create_engine ()) {
2538                         break;
2539                 }
2540
2541                 if (Glib::file_test (session_path, Glib::FileTest (G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))) {
2542
2543                         if (likely_new) {
2544
2545                                 std::string existing = Glib::build_filename (session_path, session_name);
2546
2547                                 if (!ask_about_loading_existing_session (existing)) {
2548                                         ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2549                                         continue;
2550                                 }
2551                         }
2552
2553                         _session_is_new = false;
2554
2555                 } else {
2556
2557                         if (!likely_new) {
2558                                 if (_startup) {
2559                                         pop_back_splash (*_startup);
2560                                 } else {
2561                                         hide_splash ();
2562                                 }
2563
2564                                 MessageDialog msg (string_compose (_("There is no existing session at \"%1\""), session_path));
2565                                 msg.run ();
2566                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2567                                 continue;
2568                         }
2569
2570                         char illegal = Session::session_name_is_legal(session_name);
2571                         if (illegal) {
2572                                 pop_back_splash (*_startup);
2573                                 MessageDialog msg (*_startup, string_compose(_("To ensure compatibility with various systems\n"
2574                                                      "session names may not contain a '%1' character"), illegal));
2575                                 msg.run ();
2576                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2577                                 continue;
2578                         }
2579
2580                         _session_is_new = true;
2581                 }
2582
2583                 if (likely_new && template_name.empty()) {
2584
2585                         ret = build_session_from_nsd (session_path, session_name);
2586
2587                 } else {
2588
2589                         ret = load_session (session_path, session_name, template_name);
2590
2591                         if (ret == -2) {
2592                                 /* not connected to the AudioEngine, so quit to avoid an infinite loop */
2593                                 exit (1);
2594                         }
2595
2596                         if (!ARDOUR_COMMAND_LINE::immediate_save.empty()) {
2597                                 _session->save_state (ARDOUR_COMMAND_LINE::immediate_save, false);
2598                                 exit (1);
2599                         }
2600                 }
2601         }
2602
2603         return ret;
2604 }
2605
2606 void
2607 ARDOUR_UI::close_session()
2608 {
2609         if (!check_audioengine()) {
2610                 return;
2611         }
2612
2613         if (unload_session (true)) {
2614                 return;
2615         }
2616
2617         ARDOUR_COMMAND_LINE::session_name = "";
2618
2619         if (get_session_parameters (true, false)) {
2620                 exit (1);
2621         }
2622
2623         goto_editor_window ();
2624 }
2625
2626 /** @param snap_name Snapshot name (without .ardour suffix).
2627  *  @return -2 if the load failed because we are not connected to the AudioEngine.
2628  */
2629 int
2630 ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name, std::string mix_template)
2631 {
2632         Session *new_session;
2633         int unload_status;
2634         int retval = -1;
2635
2636         session_loaded = false;
2637
2638         if (!check_audioengine()) {
2639                 return -2;
2640         }
2641
2642         unload_status = unload_session ();
2643
2644         if (unload_status < 0) {
2645                 goto out;
2646         } else if (unload_status > 0) {
2647                 retval = 0;
2648                 goto out;
2649         }
2650
2651         loading_message (string_compose (_("Please wait while %1 loads your session"), PROGRAM_NAME));
2652
2653         try {
2654                 new_session = new Session (*engine, path, snap_name, 0, mix_template);
2655         }
2656
2657         /* this one is special */
2658
2659         catch (AudioEngine::PortRegistrationFailure& err) {
2660
2661                 MessageDialog msg (err.what(),
2662                                    true,
2663                                    Gtk::MESSAGE_INFO,
2664                                    Gtk::BUTTONS_CLOSE);
2665
2666                 msg.set_title (_("Port Registration Error"));
2667                 msg.set_secondary_text (_("Click the Close button to try again."));
2668                 msg.set_position (Gtk::WIN_POS_CENTER);
2669                 pop_back_splash (msg);
2670                 msg.present ();
2671
2672                 int response = msg.run ();
2673
2674                 msg.hide ();
2675
2676                 switch (response) {
2677                 case RESPONSE_CANCEL:
2678                         exit (1);
2679                 default:
2680                         break;
2681                 }
2682                 goto out;
2683         }
2684
2685         catch (...) {
2686
2687                 MessageDialog msg (string_compose(
2688                                            _("Session \"%1 (snapshot %2)\" did not load successfully"),
2689                                            path, snap_name),
2690                                    true,
2691                                    Gtk::MESSAGE_INFO,
2692                                    BUTTONS_OK);
2693
2694                 msg.set_title (_("Loading Error"));
2695                 msg.set_secondary_text (_("Click the Refresh button to try again."));
2696                 msg.add_button (Stock::REFRESH, 1);
2697                 msg.set_position (Gtk::WIN_POS_CENTER);
2698                 pop_back_splash (msg);
2699                 msg.present ();
2700
2701                 int response = msg.run ();
2702
2703                 switch (response) {
2704                 case 1:
2705                         break;
2706                 default:
2707                         exit (1);
2708                 }
2709
2710                 msg.hide ();
2711
2712                 goto out;
2713         }
2714
2715         {
2716                 list<string> const u = new_session->unknown_processors ();
2717                 if (!u.empty()) {
2718                         MissingPluginDialog d (_session, u);
2719                         d.run ();
2720                 }
2721         }
2722
2723         /* Now the session been created, add the transport controls */
2724         new_session->add_controllable(roll_controllable);
2725         new_session->add_controllable(stop_controllable);
2726         new_session->add_controllable(goto_start_controllable);
2727         new_session->add_controllable(goto_end_controllable);
2728         new_session->add_controllable(auto_loop_controllable);
2729         new_session->add_controllable(play_selection_controllable);
2730         new_session->add_controllable(rec_controllable);
2731
2732         set_session (new_session);
2733
2734         session_loaded = true;
2735
2736         goto_editor_window ();
2737
2738         if (_session) {
2739                 _session->set_clean ();
2740         }
2741
2742         flush_pending ();
2743         retval = 0;
2744
2745   out:
2746         return retval;
2747 }
2748
2749 int
2750 ARDOUR_UI::build_session (const std::string& path, const std::string& snap_name, BusProfile& bus_profile)
2751 {
2752         Session *new_session;
2753         int x;
2754
2755         if (!check_audioengine()) {
2756                 return -1;
2757         }
2758
2759         session_loaded = false;
2760
2761         x = unload_session ();
2762
2763         if (x < 0) {
2764                 return -1;
2765         } else if (x > 0) {
2766                 return 0;
2767         }
2768
2769         _session_is_new = true;
2770
2771         try {
2772                 new_session = new Session (*engine, path, snap_name, &bus_profile);
2773         }
2774
2775         catch (...) {
2776
2777                 MessageDialog msg (string_compose(_("Could not create session in \"%1\""), path));
2778                 pop_back_splash (msg);
2779                 msg.run ();
2780                 return -1;
2781         }
2782
2783         /* Give the new session the default GUI state, if such things exist */
2784
2785         XMLNode* n;
2786         n = Config->instant_xml (X_("Editor"));
2787         if (n) {
2788                 new_session->add_instant_xml (*n, false);
2789         }
2790         n = Config->instant_xml (X_("Mixer"));
2791         if (n) {
2792                 new_session->add_instant_xml (*n, false);
2793         }
2794
2795         /* Put the playhead at 0 and scroll fully left */
2796         n = new_session->instant_xml (X_("Editor"));
2797         if (n) {
2798                 n->add_property (X_("playhead"), X_("0"));
2799                 n->add_property (X_("left-frame"), X_("0"));
2800         }
2801
2802         set_session (new_session);
2803
2804         session_loaded = true;
2805
2806         new_session->save_state(new_session->name());
2807
2808         return 0;
2809 }
2810
2811 void
2812 ARDOUR_UI::launch_chat ()
2813 {
2814 #ifdef __APPLE__
2815         open_uri("http://webchat.freenode.net/?channels=ardour-osx");
2816 #else
2817         open_uri("http://webchat.freenode.net/?channels=ardour");
2818 #endif
2819 }
2820
2821 void
2822 ARDOUR_UI::show_about ()
2823 {
2824         if (about == 0) {
2825                 about = new About;
2826                 about->signal_response().connect (sigc::mem_fun (*this, &ARDOUR_UI::about_signal_response));
2827         }
2828
2829         about->set_transient_for(*editor);
2830         about->show_all ();
2831 }
2832
2833 void
2834 ARDOUR_UI::launch_manual ()
2835 {
2836         PBD::open_uri("http://ardour.org/flossmanual");
2837 }
2838
2839 void
2840 ARDOUR_UI::launch_reference ()
2841 {
2842         PBD::open_uri ("http://ardour.org/refmanual");
2843 }
2844
2845 void
2846 ARDOUR_UI::hide_about ()
2847 {
2848         if (about) {
2849                 about->get_window()->set_cursor ();
2850                 about->hide ();
2851         }
2852 }
2853
2854 void
2855 ARDOUR_UI::about_signal_response (int /*response*/)
2856 {
2857         hide_about();
2858 }
2859
2860 void
2861 ARDOUR_UI::loading_message (const std::string& msg)
2862 {
2863         if (ARDOUR_COMMAND_LINE::no_splash) {
2864                 return;
2865         }
2866
2867         if (!splash) {
2868                 show_splash ();
2869         }
2870
2871         splash->message (msg);
2872 }
2873
2874 void
2875 ARDOUR_UI::show_splash ()
2876 {
2877         if (splash == 0) {
2878                 try {
2879                         splash = new Splash;
2880                 } catch (...) {
2881                         return;
2882                 }
2883         }
2884
2885         splash->display ();
2886 }
2887
2888 void
2889 ARDOUR_UI::hide_splash ()
2890 {
2891         delete splash;
2892         splash = 0;
2893 }
2894
2895 void
2896 ARDOUR_UI::display_cleanup_results (ARDOUR::CleanupReport& rep, const gchar* list_title,
2897                                     const string& plural_msg, const string& singular_msg)
2898 {
2899         size_t removed;
2900
2901         removed = rep.paths.size();
2902
2903         if (removed == 0) {
2904                 MessageDialog msgd (*editor,
2905                                     _("No files were ready for clean-up"),
2906                                     true,
2907                                     Gtk::MESSAGE_INFO,
2908                                     Gtk::BUTTONS_OK);
2909                 msgd.set_title (_("Clean-up"));
2910                 msgd.set_secondary_text (_("If this seems suprising, \n\
2911 check for any existing snapshots.\n\
2912 These may still include regions that\n\
2913 require some unused files to continue to exist."));
2914
2915                 msgd.run ();
2916                 return;
2917         }
2918
2919         ArdourDialog results (_("Clean-up"), true, false);
2920
2921         struct CleanupResultsModelColumns : public Gtk::TreeModel::ColumnRecord {
2922             CleanupResultsModelColumns() {
2923                     add (visible_name);
2924                     add (fullpath);
2925             }
2926             Gtk::TreeModelColumn<std::string> visible_name;
2927             Gtk::TreeModelColumn<std::string> fullpath;
2928         };
2929
2930
2931         CleanupResultsModelColumns results_columns;
2932         Glib::RefPtr<Gtk::ListStore> results_model;
2933         Gtk::TreeView results_display;
2934
2935         results_model = ListStore::create (results_columns);
2936         results_display.set_model (results_model);
2937         results_display.append_column (list_title, results_columns.visible_name);
2938
2939         results_display.set_name ("CleanupResultsList");
2940         results_display.set_headers_visible (true);
2941         results_display.set_headers_clickable (false);
2942         results_display.set_reorderable (false);
2943
2944         Gtk::ScrolledWindow list_scroller;
2945         Gtk::Label txt;
2946         Gtk::VBox dvbox;
2947         Gtk::HBox dhbox;  // the hbox for the image and text
2948         Gtk::HBox ddhbox; // the hbox we eventually pack into the dialog's vbox
2949         Gtk::Image* dimage = manage (new Gtk::Image(Stock::DIALOG_INFO,  Gtk::ICON_SIZE_DIALOG));
2950
2951         dimage->set_alignment(ALIGN_LEFT, ALIGN_TOP);
2952
2953         const string dead_directory = _session->session_directory().dead_path();
2954
2955         /* subst:
2956            %1 - number of files removed
2957            %2 - location of "dead"
2958            %3 - size of files affected
2959            %4 - prefix for "bytes" to produce sensible results (e.g. mega, kilo, giga)
2960         */
2961
2962         const char* bprefix;
2963         double space_adjusted = 0;
2964
2965         if (rep.space < 1000) {
2966                 bprefix = _("");
2967                 space_adjusted = rep.space;
2968         } else if (rep.space < 1000000) {
2969                 bprefix = _("kilo");
2970                 space_adjusted = truncf((float)rep.space / 1000.0);
2971         } else if (rep.space < 1000000 * 1000) {
2972                 bprefix = _("mega");
2973                 space_adjusted = truncf((float)rep.space / (1000.0 * 1000.0));
2974         } else {
2975                 bprefix = _("giga");
2976                 space_adjusted = truncf((float)rep.space / (1000.0 * 1000 * 1000.0));
2977         }
2978
2979         if (removed > 1) {
2980                 txt.set_markup (string_compose (plural_msg, removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
2981         } else {
2982                 txt.set_markup (string_compose (singular_msg, removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
2983         }
2984
2985         dhbox.pack_start (*dimage, true, false, 5);
2986         dhbox.pack_start (txt, true, false, 5);
2987
2988         for (vector<string>::iterator i = rep.paths.begin(); i != rep.paths.end(); ++i) {
2989                 TreeModel::Row row = *(results_model->append());
2990                 row[results_columns.visible_name] = *i;
2991                 row[results_columns.fullpath] = *i;
2992         }
2993
2994         list_scroller.add (results_display);
2995         list_scroller.set_size_request (-1, 150);
2996         list_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
2997
2998         dvbox.pack_start (dhbox, true, false, 5);
2999         dvbox.pack_start (list_scroller, true, false, 5);
3000         ddhbox.pack_start (dvbox, true, false, 5);
3001
3002         results.get_vbox()->pack_start (ddhbox, true, false, 5);
3003         results.add_button (Stock::CLOSE, RESPONSE_CLOSE);
3004         results.set_default_response (RESPONSE_CLOSE);
3005         results.set_position (Gtk::WIN_POS_MOUSE);
3006
3007         results_display.show();
3008         list_scroller.show();
3009         txt.show();
3010         dvbox.show();
3011         dhbox.show();
3012         ddhbox.show();
3013         dimage->show();
3014
3015         //results.get_vbox()->show();
3016         results.set_resizable (false);
3017
3018         results.run ();
3019
3020 }
3021
3022 void
3023 ARDOUR_UI::cleanup ()
3024 {
3025         if (_session == 0) {
3026                 /* shouldn't happen: menu item is insensitive */
3027                 return;
3028         }
3029
3030
3031         MessageDialog checker (_("Are you sure you want to clean-up?"),
3032                                 true,
3033                                 Gtk::MESSAGE_QUESTION,
3034                                 Gtk::BUTTONS_NONE);
3035
3036         checker.set_title (_("Clean-up"));
3037
3038         checker.set_secondary_text(_("Clean-up is a destructive operation.\n\
3039 ALL undo/redo information will be lost if you clean-up.\n\
3040 Clean-up will move all unused files to a \"dead\" location."));
3041
3042         checker.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3043         checker.add_button (_("Clean-up"), RESPONSE_ACCEPT);
3044         checker.set_default_response (RESPONSE_CANCEL);
3045
3046         checker.set_name (_("CleanupDialog"));
3047         checker.set_wmclass (X_("ardour_cleanup"), PROGRAM_NAME);
3048         checker.set_position (Gtk::WIN_POS_MOUSE);
3049
3050         switch (checker.run()) {
3051         case RESPONSE_ACCEPT:
3052                 break;
3053         default:
3054                 return;
3055         }
3056
3057         ARDOUR::CleanupReport rep;
3058
3059         editor->prepare_for_cleanup ();
3060
3061         /* do not allow flush until a session is reloaded */
3062
3063         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Main"), X_("FlushWastebasket"));
3064         if (act) {
3065                 act->set_sensitive (false);
3066         }
3067
3068         if (_session->cleanup_sources (rep)) {
3069                 editor->finish_cleanup ();
3070                 return;
3071         }
3072
3073         editor->finish_cleanup ();
3074
3075         checker.hide();
3076         display_cleanup_results (rep,
3077                                  _("Cleaned Files"),
3078                                  _("\
3079 The following %1 files were not in use and \n\
3080 have been moved to: %2\n\n\
3081 After a restart of %5\n\n\
3082 <span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
3083 will release an additional %3 %4bytes of disk space.\n"),
3084                                  _("\
3085 The following file was not in use and \n\
3086 has been moved to: %2\n\n\
3087 After a restart of %5\n\n\
3088 <span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
3089 will release an additional %3 %4bytes of disk space.\n"
3090                                          ));
3091
3092 }
3093
3094 void
3095 ARDOUR_UI::flush_trash ()
3096 {
3097         if (_session == 0) {
3098                 /* shouldn't happen: menu item is insensitive */
3099                 return;
3100         }
3101
3102         ARDOUR::CleanupReport rep;
3103
3104         if (_session->cleanup_trash_sources (rep)) {
3105                 return;
3106         }
3107
3108         display_cleanup_results (rep,
3109                                  _("deleted file"),
3110                                  _("The following %1 files were deleted from %2,\n\
3111 releasing %3 %4bytes of disk space"),
3112                                  _("The following file was deleted from %2,\n\
3113 releasing %3 %4bytes of disk space"));
3114 }
3115
3116 void
3117 ARDOUR_UI::add_route (Gtk::Window* float_window)
3118 {
3119         int count;
3120
3121         if (!_session) {
3122                 return;
3123         }
3124
3125         if (add_route_dialog == 0) {
3126                 add_route_dialog = new AddRouteDialog (_session);
3127                 add_route_dialog->set_position (WIN_POS_MOUSE);
3128                 if (float_window) {
3129                         add_route_dialog->set_transient_for (*float_window);
3130                 }
3131         }
3132
3133         if (add_route_dialog->is_visible()) {
3134                 /* we're already doing this */
3135                 return;
3136         }
3137
3138         ResponseType r = (ResponseType) add_route_dialog->run ();
3139
3140         add_route_dialog->hide();
3141
3142         switch (r) {
3143                 case RESPONSE_ACCEPT:
3144                         break;
3145                 default:
3146                         return;
3147                         break;
3148         }
3149
3150         if ((count = add_route_dialog->count()) <= 0) {
3151                 return;
3152         }
3153
3154         PBD::ScopedConnection idle_connection;
3155
3156         if (count > 8) {
3157                 ARDOUR::GUIIdle.connect (idle_connection, MISSING_INVALIDATOR, boost::bind (&Gtkmm2ext::UI::flush_pending, this), gui_context());
3158         }
3159
3160         string template_path = add_route_dialog->track_template();
3161
3162         if (!template_path.empty()) {
3163                 _session->new_route_from_template (count, template_path);
3164                 return;
3165         }
3166
3167         ChanCount input_chan= add_route_dialog->channels ();
3168         ChanCount output_chan;
3169         string name_template = add_route_dialog->name_template ();
3170         PluginInfoPtr instrument = add_route_dialog->requested_instrument ();
3171         RouteGroup* route_group = add_route_dialog->route_group ();
3172         AutoConnectOption oac = Config->get_output_auto_connect();
3173
3174         if (oac & AutoConnectMaster) {
3175                 output_chan.set (DataType::AUDIO, (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan.n_audio()));
3176                 output_chan.set (DataType::MIDI, 0);
3177         } else {
3178                 output_chan = input_chan;
3179         }
3180
3181         /* XXX do something with name template */
3182
3183         switch (add_route_dialog->type_wanted()) {
3184         case AddRouteDialog::AudioTrack:
3185                 session_add_audio_track (input_chan.n_audio(), output_chan.n_audio(), add_route_dialog->mode(), route_group, count, name_template);
3186                 break;
3187         case AddRouteDialog::MidiTrack:
3188                 session_add_midi_track (route_group, count, name_template, instrument);
3189                 break;
3190         case AddRouteDialog::MixedTrack:
3191                 session_add_mixed_track (input_chan, output_chan, route_group, count, name_template, instrument);
3192                 break;
3193         case AddRouteDialog::AudioBus:
3194                 session_add_audio_bus (input_chan.n_audio(), output_chan.n_audio(), route_group, count, name_template);
3195                 break;
3196         }
3197
3198         /* idle connection will end at scope end */
3199 }
3200
3201 XMLNode*
3202 ARDOUR_UI::mixer_settings () const
3203 {
3204         XMLNode* node = 0;
3205
3206         if (_session) {
3207                 node = _session->instant_xml(X_("Mixer"));
3208         } else {
3209                 node = Config->instant_xml(X_("Mixer"));
3210         }
3211
3212         if (!node) {
3213                 node = new XMLNode (X_("Mixer"));
3214         }
3215
3216         return node;
3217 }
3218
3219 XMLNode*
3220 ARDOUR_UI::editor_settings () const
3221 {
3222         XMLNode* node = 0;
3223
3224         if (_session) {
3225                 node = _session->instant_xml(X_("Editor"));
3226         } else {
3227                 node = Config->instant_xml(X_("Editor"));
3228         }
3229
3230         if (!node) {
3231                 if (getenv("ARDOUR_INSTANT_XML_PATH")) {
3232                         node = Config->instant_xml(getenv("ARDOUR_INSTANT_XML_PATH"));
3233                 }
3234         }
3235
3236         if (!node) {
3237                 node = new XMLNode (X_("Editor"));
3238         }
3239
3240         return node;
3241 }
3242
3243 XMLNode*
3244 ARDOUR_UI::keyboard_settings () const
3245 {
3246         XMLNode* node = 0;
3247
3248         node = Config->extra_xml(X_("Keyboard"));
3249
3250         if (!node) {
3251                 node = new XMLNode (X_("Keyboard"));
3252         }
3253
3254         return node;
3255 }
3256
3257 void
3258 ARDOUR_UI::create_xrun_marker (framepos_t where)
3259 {
3260         editor->mouse_add_new_marker (where, false, true);
3261 }
3262
3263 void
3264 ARDOUR_UI::halt_on_xrun_message ()
3265 {
3266         MessageDialog msg (*editor,
3267                            _("Recording was stopped because your system could not keep up."));
3268         msg.run ();
3269 }
3270
3271 void
3272 ARDOUR_UI::xrun_handler (framepos_t where)
3273 {
3274         if (!_session) {
3275                 return;
3276         }
3277
3278         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::xrun_handler, where)
3279
3280         if (_session && Config->get_create_xrun_marker() && _session->actively_recording()) {
3281                 create_xrun_marker(where);
3282         }
3283
3284         if (_session && Config->get_stop_recording_on_xrun() && _session->actively_recording()) {
3285                 halt_on_xrun_message ();
3286         }
3287 }
3288
3289 void
3290 ARDOUR_UI::disk_overrun_handler ()
3291 {
3292         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::disk_overrun_handler)
3293
3294         if (!have_disk_speed_dialog_displayed) {
3295                 have_disk_speed_dialog_displayed = true;
3296                 MessageDialog* msg = new MessageDialog (*editor, string_compose (_("\
3297 The disk system on your computer\n\
3298 was not able to keep up with %1.\n\
3299 \n\
3300 Specifically, it failed to write data to disk\n\
3301 quickly enough to keep up with recording.\n"), PROGRAM_NAME));
3302                 msg->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
3303                 msg->show ();
3304         }
3305 }
3306
3307 void
3308 ARDOUR_UI::disk_underrun_handler ()
3309 {
3310         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::disk_underrun_handler)
3311
3312         if (!have_disk_speed_dialog_displayed) {
3313                 have_disk_speed_dialog_displayed = true;
3314                 MessageDialog* msg = new MessageDialog (
3315                         *editor, string_compose (_("The disk system on your computer\n\
3316 was not able to keep up with %1.\n\
3317 \n\
3318 Specifically, it failed to read data from disk\n\
3319 quickly enough to keep up with playback.\n"), PROGRAM_NAME));
3320                 msg->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
3321                 msg->show ();
3322         }
3323 }
3324
3325 void
3326 ARDOUR_UI::disk_speed_dialog_gone (int /*ignored_response*/, MessageDialog* msg)
3327 {
3328         have_disk_speed_dialog_displayed = false;
3329         delete msg;
3330 }
3331
3332 void
3333 ARDOUR_UI::session_dialog (std::string msg)
3334 {
3335         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::session_dialog, msg)
3336
3337         MessageDialog* d;
3338
3339         if (editor) {
3340                 d = new MessageDialog (*editor, msg, false, MESSAGE_INFO, BUTTONS_OK, true);
3341         } else {
3342                 d = new MessageDialog (msg, false, MESSAGE_INFO, BUTTONS_OK, true);
3343         }
3344
3345         d->show_all ();
3346         d->run ();
3347         delete d;
3348 }
3349
3350 int
3351 ARDOUR_UI::pending_state_dialog ()
3352 {
3353         HBox* hbox = new HBox();
3354         Image* image = new Image (Stock::DIALOG_QUESTION, ICON_SIZE_DIALOG);
3355         ArdourDialog dialog (_("Crash Recovery"), true);
3356         Label  message (string_compose (_("\
3357 This session appears to have been in\n\
3358 middle of recording when ardour or\n\
3359 the computer was shutdown.\n\
3360 \n\
3361 %1 can recover any captured audio for\n\
3362 you, or it can ignore it. Please decide\n\
3363 what you would like to do.\n"), PROGRAM_NAME));
3364         image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
3365         hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
3366         hbox->pack_end (message, PACK_EXPAND_PADDING, 12);
3367         dialog.get_vbox()->pack_start(*hbox, PACK_EXPAND_PADDING, 6);
3368         dialog.add_button (_("Ignore crash data"), RESPONSE_REJECT);
3369         dialog.add_button (_("Recover from crash"), RESPONSE_ACCEPT);
3370         dialog.set_default_response (RESPONSE_ACCEPT);
3371         dialog.set_position (WIN_POS_CENTER);
3372         message.show();
3373         image->show();
3374         hbox->show();
3375
3376         switch (dialog.run ()) {
3377         case RESPONSE_ACCEPT:
3378                 return 1;
3379         default:
3380                 return 0;
3381         }
3382 }
3383
3384 int
3385 ARDOUR_UI::sr_mismatch_dialog (framecnt_t desired, framecnt_t actual)
3386 {
3387         HBox* hbox = new HBox();
3388         Image* image = new Image (Stock::DIALOG_QUESTION, ICON_SIZE_DIALOG);
3389         ArdourDialog dialog (_("Sample Rate Mismatch"), true);
3390         Label  message (string_compose (_("\
3391 This session was created with a sample rate of %1 Hz, but\n\
3392 %2 is currently running at %3 Hz.  If you load this session,\n\
3393 audio may be played at the wrong sample rate.\n"), desired, PROGRAM_NAME, actual));
3394
3395         image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
3396         hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
3397         hbox->pack_end (message, PACK_EXPAND_PADDING, 12);
3398         dialog.get_vbox()->pack_start(*hbox, PACK_EXPAND_PADDING, 6);
3399         dialog.add_button (_("Do not load session"), RESPONSE_REJECT);
3400         dialog.add_button (_("Load session anyway"), RESPONSE_ACCEPT);
3401         dialog.set_default_response (RESPONSE_ACCEPT);
3402         dialog.set_position (WIN_POS_CENTER);
3403         message.show();
3404         image->show();
3405         hbox->show();
3406
3407         switch (dialog.run ()) {
3408         case RESPONSE_ACCEPT:
3409                 return 0;
3410         default:
3411                 return 1;
3412         }
3413 }
3414
3415
3416 void
3417 ARDOUR_UI::disconnect_from_jack ()
3418 {
3419         if (engine) {
3420                 if (engine->disconnect_from_jack ()) {
3421                         MessageDialog msg (*editor, _("Could not disconnect from JACK"));
3422                         msg.run ();
3423                 }
3424
3425                 update_sample_rate (0);
3426         }
3427 }
3428
3429 void
3430 ARDOUR_UI::reconnect_to_jack ()
3431 {
3432         if (engine) {
3433                 if (engine->reconnect_to_jack ()) {
3434                         MessageDialog msg (*editor,  _("Could not reconnect to JACK"));
3435                         msg.run ();
3436                 }
3437
3438                 update_sample_rate (0);
3439         }
3440 }
3441
3442 void
3443 ARDOUR_UI::use_config ()
3444 {
3445         XMLNode* node = Config->extra_xml (X_("TransportControllables"));
3446         if (node) {
3447                 set_transport_controllable_state (*node);
3448         }
3449 }
3450
3451 void
3452 ARDOUR_UI::update_transport_clocks (framepos_t pos)
3453 {
3454         if (Config->get_primary_clock_delta_edit_cursor()) {
3455                 primary_clock->set (pos, false, editor->get_preferred_edit_position());
3456         } else {
3457                 primary_clock->set (pos);
3458         }
3459
3460         if (Config->get_secondary_clock_delta_edit_cursor()) {
3461                 secondary_clock->set (pos, false, editor->get_preferred_edit_position());
3462         } else {
3463                 secondary_clock->set (pos);
3464         }
3465
3466         if (big_clock_window->get()) {
3467                 big_clock->set (pos);
3468         }
3469 }
3470
3471
3472 void
3473 ARDOUR_UI::step_edit_status_change (bool yn)
3474 {
3475         // XXX should really store pre-step edit status of things
3476         // we make insensitive
3477
3478         if (yn) {
3479                 rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
3480                 rec_button.set_sensitive (false);
3481         } else {
3482                 rec_button.unset_active_state ();;
3483                 rec_button.set_sensitive (true);
3484         }
3485 }
3486
3487 void
3488 ARDOUR_UI::record_state_changed ()
3489 {
3490         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::record_state_changed);
3491
3492         if (!_session || !big_clock_window->get()) {
3493                 /* why bother - the clock isn't visible */
3494                 return;
3495         }
3496
3497         if (_session->record_status () == Session::Recording && _session->have_rec_enabled_track ()) {
3498                 big_clock->set_active (true);
3499         } else {
3500                 big_clock->set_active (false);
3501         }
3502 }
3503
3504 bool
3505 ARDOUR_UI::first_idle ()
3506 {
3507         if (_session) {
3508                 _session->allow_auto_play (true);
3509         }
3510
3511         if (editor) {
3512                 editor->first_idle();
3513         }
3514
3515         Keyboard::set_can_save_keybindings (true);
3516         return false;
3517 }
3518
3519 void
3520 ARDOUR_UI::store_clock_modes ()
3521 {
3522         XMLNode* node = new XMLNode(X_("ClockModes"));
3523
3524         for (vector<AudioClock*>::iterator x = AudioClock::clocks.begin(); x != AudioClock::clocks.end(); ++x) {
3525                 XMLNode* child = new XMLNode (X_("Clock"));
3526
3527                 child->add_property (X_("name"), (*x)->name());
3528                 child->add_property (X_("mode"), enum_2_string ((*x)->mode()));
3529                 child->add_property (X_("on"), ((*x)->off() ? X_("no") : X_("yes")));
3530
3531                 node->add_child_nocopy (*child);
3532         }
3533
3534         _session->add_extra_xml (*node);
3535         _session->set_dirty ();
3536 }
3537
3538 ARDOUR_UI::TransportControllable::TransportControllable (std::string name, ARDOUR_UI& u, ToggleType tp)
3539         : Controllable (name), ui (u), type(tp)
3540 {
3541
3542 }
3543
3544 void
3545 ARDOUR_UI::TransportControllable::set_value (double val)
3546 {
3547         if (val < 0.5) {
3548                 /* do nothing: these are radio-style actions */
3549                 return;
3550         }
3551
3552         const char *action = 0;
3553
3554         switch (type) {
3555         case Roll:
3556                 action = X_("Roll");
3557                 break;
3558         case Stop:
3559                 action = X_("Stop");
3560                 break;
3561         case GotoStart:
3562                 action = X_("GotoStart");
3563                 break;
3564         case GotoEnd:
3565                 action = X_("GotoEnd");
3566                 break;
3567         case AutoLoop:
3568                 action = X_("Loop");
3569                 break;
3570         case PlaySelection:
3571                 action = X_("PlaySelection");
3572                 break;
3573         case RecordEnable:
3574                 action = X_("Record");
3575                 break;
3576         default:
3577                 break;
3578         }
3579
3580         if (action == 0) {
3581                 return;
3582         }
3583
3584         Glib::RefPtr<Action> act = ActionManager::get_action ("Transport", action);
3585
3586         if (act) {
3587                 act->activate ();
3588         }
3589 }
3590
3591 double
3592 ARDOUR_UI::TransportControllable::get_value (void) const
3593 {
3594         float val = 0.0;
3595
3596         switch (type) {
3597         case Roll:
3598                 break;
3599         case Stop:
3600                 break;
3601         case GotoStart:
3602                 break;
3603         case GotoEnd:
3604                 break;
3605         case AutoLoop:
3606                 break;
3607         case PlaySelection:
3608                 break;
3609         case RecordEnable:
3610                 break;
3611         default:
3612                 break;
3613         }
3614
3615         return val;
3616 }
3617
3618 void
3619 ARDOUR_UI::setup_profile ()
3620 {
3621         if (gdk_screen_width() < 1200 || getenv ("ARDOUR_NARROW_SCREEN")) {
3622                 Profile->set_small_screen ();
3623         }
3624
3625         if (getenv ("ARDOUR_SAE")) {
3626                 Profile->set_sae ();
3627                 Profile->set_single_package ();
3628         }
3629 }
3630
3631 void
3632 ARDOUR_UI::toggle_translations ()
3633 {
3634         using namespace Glib;
3635
3636         RefPtr<Action> act = ActionManager::get_action (X_("Main"), X_("EnableTranslation"));
3637         if (act) {
3638                 RefPtr<ToggleAction> ract = RefPtr<ToggleAction>::cast_dynamic (act);
3639                 if (ract) {
3640
3641                         string i18n_killer = ARDOUR::translation_kill_path();
3642
3643                         bool already_enabled = !ARDOUR::translations_are_disabled ();
3644
3645                         if (ract->get_active ()) {
3646                                 /* we don't care about errors */
3647                                 int fd = ::open (i18n_killer.c_str(), O_RDONLY|O_CREAT, 0644);
3648                                 close (fd);
3649                         } else {
3650                                 /* we don't care about errors */
3651                                 unlink (i18n_killer.c_str());
3652                         }
3653
3654                         if (already_enabled != ract->get_active()) {
3655                                 MessageDialog win (already_enabled ? _("Translations disabled") : _("Translations enabled"),
3656                                                    false,
3657                                                    Gtk::MESSAGE_WARNING,
3658                                                    Gtk::BUTTONS_OK);
3659                                 win.set_secondary_text (string_compose (_("You must restart %1 for this to take effect."), PROGRAM_NAME));
3660                                 win.set_position (Gtk::WIN_POS_CENTER);
3661                                 win.present ();
3662                                 win.run ();
3663                         }
3664                 }
3665         }
3666 }
3667
3668 /** Add a window proxy to our list, so that its state will be saved.
3669  *  This call also causes the window to be created and opened if its
3670  *  state was saved as `visible'.
3671  */
3672 void
3673 ARDOUR_UI::add_window_proxy (WindowProxyBase* p)
3674 {
3675         _window_proxies.push_back (p);
3676         p->maybe_show ();
3677 }
3678
3679 /** Remove a window proxy from our list.  Must be called if a WindowProxy
3680  *  is deleted, to prevent hanging pointers.
3681  */
3682 void
3683 ARDOUR_UI::remove_window_proxy (WindowProxyBase* p)
3684 {
3685         _window_proxies.remove (p);
3686 }
3687
3688 int
3689 ARDOUR_UI::missing_file (Session*s, std::string str, DataType type)
3690 {
3691         MissingFileDialog dialog (s, str, type);
3692
3693         dialog.show ();
3694         dialog.present ();
3695
3696         int result = dialog.run ();
3697         dialog.hide ();
3698
3699         switch (result) {
3700         case RESPONSE_OK:
3701                 break;
3702         default:
3703                 return 1; // quit entire session load
3704         }
3705
3706         result = dialog.get_action ();
3707
3708         return result;
3709 }
3710
3711 int
3712 ARDOUR_UI::ambiguous_file (std::string file, std::string /*path*/, std::vector<std::string> hits)
3713 {
3714         AmbiguousFileDialog dialog (file, hits);
3715
3716         dialog.show ();
3717         dialog.present ();
3718
3719         dialog.run ();
3720         return dialog.get_which ();
3721 }
3722
3723 /** Allocate our thread-local buffers */
3724 void
3725 ARDOUR_UI::get_process_buffers ()
3726 {
3727         _process_thread->get_buffers ();
3728 }
3729
3730 /** Drop our thread-local buffers */
3731 void
3732 ARDOUR_UI::drop_process_buffers ()
3733 {
3734         _process_thread->drop_buffers ();
3735 }
3736
3737 void
3738 ARDOUR_UI::feedback_detected ()
3739 {
3740         _feedback_exists = true;
3741 }
3742
3743 void
3744 ARDOUR_UI::successful_graph_sort ()
3745 {
3746         _feedback_exists = false;
3747 }
3748
3749 void
3750 ARDOUR_UI::midi_panic ()
3751 {
3752         if (_session) {
3753                 _session->midi_panic();
3754         }
3755 }