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_seconds (sigc::mem_fun(*this, &ARDOUR_UI::update_wall_clock), 1);
 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         static int last_min = -1;
1105
1106         time (&now);
1107         tm_now = localtime (&now);
1108         if (last_min != tm_now->tm_min) {
1109                 char buf[16];
1110                 sprintf (buf, "%02d:%02d", tm_now->tm_hour, tm_now->tm_min);
1111                 wall_clock_label.set_text (buf);
1112                 last_min = tm_now->tm_min;
1113         }
1114
1115         return TRUE;
1116 }
1117
1118 void
1119 ARDOUR_UI::redisplay_recent_sessions ()
1120 {
1121         std::vector<std::string> session_directories;
1122         RecentSessionsSorter cmp;
1123
1124         recent_session_display.set_model (Glib::RefPtr<TreeModel>(0));
1125         recent_session_model->clear ();
1126
1127         ARDOUR::RecentSessions rs;
1128         ARDOUR::read_recent_sessions (rs);
1129
1130         if (rs.empty()) {
1131                 recent_session_display.set_model (recent_session_model);
1132                 return;
1133         }
1134
1135         // sort them alphabetically
1136         sort (rs.begin(), rs.end(), cmp);
1137
1138         for (ARDOUR::RecentSessions::iterator i = rs.begin(); i != rs.end(); ++i) {
1139                 session_directories.push_back ((*i).second);
1140         }
1141
1142         for (vector<std::string>::const_iterator i = session_directories.begin();
1143                         i != session_directories.end(); ++i)
1144         {
1145                 std::vector<std::string> state_file_paths;
1146
1147                 // now get available states for this session
1148
1149                 get_state_files_in_directory (*i, state_file_paths);
1150
1151                 vector<string*>* states;
1152                 vector<const gchar*> item;
1153                 string fullpath = *i;
1154
1155                 /* remove any trailing / */
1156
1157                 if (fullpath[fullpath.length() - 1] == '/') {
1158                         fullpath = fullpath.substr (0, fullpath.length() - 1);
1159                 }
1160
1161                 /* check whether session still exists */
1162                 if (!Glib::file_test(fullpath.c_str(), Glib::FILE_TEST_EXISTS)) {
1163                         /* session doesn't exist */
1164                         continue;
1165                 }
1166
1167                 /* now get available states for this session */
1168
1169                 if ((states = Session::possible_states (fullpath)) == 0) {
1170                         /* no state file? */
1171                         continue;
1172                 }
1173
1174                 std::vector<string> state_file_names(get_file_names_no_extension (state_file_paths));
1175
1176                 Gtk::TreeModel::Row row = *(recent_session_model->append());
1177
1178                 row[recent_session_columns.visible_name] = Glib::path_get_basename (fullpath);
1179                 row[recent_session_columns.fullpath] = fullpath;
1180
1181                 if (state_file_names.size() > 1) {
1182
1183                         // add the children
1184
1185                         for (std::vector<std::string>::iterator i2 = state_file_names.begin();
1186                                         i2 != state_file_names.end(); ++i2)
1187                         {
1188
1189                                 Gtk::TreeModel::Row child_row = *(recent_session_model->append (row.children()));
1190
1191                                 child_row[recent_session_columns.visible_name] = *i2;
1192                                 child_row[recent_session_columns.fullpath] = fullpath;
1193                         }
1194                 }
1195         }
1196
1197         recent_session_display.set_tooltip_column(1); // recent_session_columns.fullpath
1198         recent_session_display.set_model (recent_session_model);
1199 }
1200
1201 void
1202 ARDOUR_UI::build_session_selector ()
1203 {
1204         session_selector_window = new ArdourDialog (_("Recent Sessions"));
1205
1206         Gtk::ScrolledWindow *scroller = manage (new Gtk::ScrolledWindow);
1207
1208         session_selector_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
1209         session_selector_window->add_button (Stock::OPEN, RESPONSE_ACCEPT);
1210         session_selector_window->set_default_response (RESPONSE_ACCEPT);
1211         recent_session_model = TreeStore::create (recent_session_columns);
1212         recent_session_display.set_model (recent_session_model);
1213         recent_session_display.append_column (_("Recent Sessions"), recent_session_columns.visible_name);
1214         recent_session_display.set_headers_visible (false);
1215         recent_session_display.get_selection()->set_mode (SELECTION_BROWSE);
1216         recent_session_display.signal_row_activated().connect (sigc::mem_fun (*this, &ARDOUR_UI::recent_session_row_activated));
1217
1218         scroller->add (recent_session_display);
1219         scroller->set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1220
1221         session_selector_window->set_name ("SessionSelectorWindow");
1222         session_selector_window->set_size_request (200, 400);
1223         session_selector_window->get_vbox()->pack_start (*scroller);
1224
1225         recent_session_display.show();
1226         scroller->show();
1227 }
1228
1229 void
1230 ARDOUR_UI::recent_session_row_activated (const TreePath& /*path*/, TreeViewColumn* /*col*/)
1231 {
1232         session_selector_window->response (RESPONSE_ACCEPT);
1233 }
1234
1235 void
1236 ARDOUR_UI::open_recent_session ()
1237 {
1238         bool can_return = (_session != 0);
1239
1240         if (session_selector_window == 0) {
1241                 build_session_selector ();
1242         }
1243
1244         redisplay_recent_sessions ();
1245
1246         while (true) {
1247
1248                 session_selector_window->set_position (WIN_POS_MOUSE);
1249
1250                 ResponseType r = (ResponseType) session_selector_window->run ();
1251
1252                 switch (r) {
1253                 case RESPONSE_ACCEPT:
1254                         break;
1255                 default:
1256                         if (can_return) {
1257                                 session_selector_window->hide();
1258                                 return;
1259                         } else {
1260                                 exit (1);
1261                         }
1262                 }
1263
1264                 if (recent_session_display.get_selection()->count_selected_rows() == 0) {
1265                         continue;
1266                 }
1267
1268                 session_selector_window->hide();
1269
1270                 Gtk::TreeModel::iterator i = recent_session_display.get_selection()->get_selected();
1271
1272                 if (i == recent_session_model->children().end()) {
1273                         return;
1274                 }
1275
1276                 std::string path = (*i)[recent_session_columns.fullpath];
1277                 std::string state = (*i)[recent_session_columns.visible_name];
1278
1279                 _session_is_new = false;
1280
1281                 if (load_session (path, state) == 0) {
1282                         break;
1283                 }
1284
1285                 can_return = false;
1286         }
1287 }
1288
1289 bool
1290 ARDOUR_UI::check_audioengine ()
1291 {
1292         if (engine) {
1293                 if (!engine->connected()) {
1294                         MessageDialog msg (string_compose (
1295                                                    _("%1 is not connected to JACK\n"
1296                                                      "You cannot open or close sessions in this condition"),
1297                                                    PROGRAM_NAME));
1298                         pop_back_splash (msg);
1299                         msg.run ();
1300                         return false;
1301                 }
1302                 return true;
1303         } else {
1304                 return false;
1305         }
1306 }
1307
1308 void
1309 ARDOUR_UI::open_session ()
1310 {
1311         if (!check_audioengine()) {
1312                 return;
1313
1314         }
1315
1316         /* popup selector window */
1317
1318         if (open_session_selector == 0) {
1319
1320                 /* ardour sessions are folders */
1321
1322                 open_session_selector = new Gtk::FileChooserDialog (_("Open Session"), FILE_CHOOSER_ACTION_OPEN);
1323                 open_session_selector->add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
1324                 open_session_selector->add_button (Gtk::Stock::OPEN, Gtk::RESPONSE_ACCEPT);
1325                 open_session_selector->set_default_response(Gtk::RESPONSE_ACCEPT);
1326
1327                 if (_session) {
1328                         string session_parent_dir = Glib::path_get_dirname(_session->path());
1329                         string::size_type last_dir_sep = session_parent_dir.rfind(G_DIR_SEPARATOR);
1330                         session_parent_dir = session_parent_dir.substr(0, last_dir_sep);
1331                         open_session_selector->set_current_folder(session_parent_dir);
1332                 } else {
1333                         open_session_selector->set_current_folder(Config->get_default_session_parent_dir());
1334                 }
1335
1336                 open_session_selector->add_shortcut_folder (Config->get_default_session_parent_dir());
1337
1338                 FileFilter session_filter;
1339                 session_filter.add_pattern ("*.ardour");
1340                 session_filter.set_name (string_compose (_("%1 sessions"), PROGRAM_NAME));
1341                 open_session_selector->add_filter (session_filter);
1342                 open_session_selector->set_filter (session_filter);
1343         }
1344
1345         int response = open_session_selector->run();
1346         open_session_selector->hide ();
1347
1348         switch (response) {
1349         case RESPONSE_ACCEPT:
1350                 break;
1351         default:
1352                 open_session_selector->hide();
1353                 return;
1354         }
1355
1356         open_session_selector->hide();
1357         string session_path = open_session_selector->get_filename();
1358         string path, name;
1359         bool isnew;
1360
1361         if (session_path.length() > 0) {
1362                 if (ARDOUR::find_session (session_path, path, name, isnew) == 0) {
1363                         _session_is_new = isnew;
1364                         load_session (path, name);
1365                 }
1366         }
1367 }
1368
1369
1370 void
1371 ARDOUR_UI::session_add_mixed_track (const ChanCount& input, const ChanCount& output, RouteGroup* route_group,
1372                                     uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
1373 {
1374         list<boost::shared_ptr<MidiTrack> > tracks;
1375
1376         if (_session == 0) {
1377                 warning << _("You cannot add a track without a session already loaded.") << endmsg;
1378                 return;
1379         }
1380
1381         try {
1382                 tracks = _session->new_midi_track (input, output, instrument, ARDOUR::Normal, route_group, how_many, name_template);
1383
1384                 if (tracks.size() != how_many) {
1385                         if (how_many == 1) {
1386                                 error << _("could not create a new mixed track") << endmsg;
1387                         } else {
1388                                 error << string_compose (_("could not create %1 new mixed tracks"), how_many) << endmsg;
1389                         }
1390                 }
1391         }
1392
1393         catch (...) {
1394                 MessageDialog msg (*editor,
1395                                    string_compose (_("There are insufficient JACK ports available\n\
1396 to create a new track or bus.\n\
1397 You should save %1, exit and\n\
1398 restart JACK with more ports."), PROGRAM_NAME));
1399                 msg.run ();
1400         }
1401 }
1402
1403
1404 void
1405 ARDOUR_UI::session_add_midi_route (bool disk, RouteGroup* route_group, uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
1406 {
1407         ChanCount one_midi_channel;
1408         one_midi_channel.set (DataType::MIDI, 1);
1409
1410         if (disk) {
1411                 session_add_mixed_track (one_midi_channel, one_midi_channel, route_group, how_many, name_template, instrument);
1412         }
1413 }
1414
1415 void
1416 ARDOUR_UI::session_add_audio_route (
1417         bool track,
1418         int32_t input_channels,
1419         int32_t output_channels,
1420         ARDOUR::TrackMode mode,
1421         RouteGroup* route_group,
1422         uint32_t how_many,
1423         string const & name_template
1424         )
1425 {
1426         list<boost::shared_ptr<AudioTrack> > tracks;
1427         RouteList routes;
1428
1429         if (_session == 0) {
1430                 warning << _("You cannot add a track or bus without a session already loaded.") << endmsg;
1431                 return;
1432         }
1433
1434         try {
1435                 if (track) {
1436                         tracks = _session->new_audio_track (input_channels, output_channels, mode, route_group, how_many, name_template);
1437
1438                         if (tracks.size() != how_many) {
1439                                 if (how_many == 1) {
1440                                         error << _("could not create a new audio track") << endmsg;
1441                                 } else {
1442                                         error << string_compose (_("could only create %1 of %2 new audio %3"),
1443                                                                  tracks.size(), how_many, (track ? _("tracks") : _("busses"))) << endmsg;
1444                                 }
1445                         }
1446
1447                 } else {
1448
1449                         routes = _session->new_audio_route (input_channels, output_channels, route_group, how_many, name_template);
1450
1451                         if (routes.size() != how_many) {
1452                                 if (how_many == 1) {
1453                                         error << _("could not create a new audio bus") << endmsg;
1454                                 } else {
1455                                         error << string_compose (_("could not create %1 new audio busses"), how_many) << endmsg;
1456                                 }
1457                         }
1458                 }
1459         }
1460
1461         catch (...) {
1462                 MessageDialog msg (*editor,
1463                                    string_compose (_("There are insufficient JACK ports available\n\
1464 to create a new track or bus.\n\
1465 You should save %1, exit and\n\
1466 restart JACK with more ports."), PROGRAM_NAME));
1467                 pop_back_splash (msg);
1468                 msg.run ();
1469         }
1470 }
1471
1472 void
1473 ARDOUR_UI::transport_goto_start ()
1474 {
1475         if (_session) {
1476                 _session->goto_start();
1477
1478                 /* force displayed area in editor to start no matter
1479                    what "follow playhead" setting is.
1480                 */
1481
1482                 if (editor) {
1483                         editor->center_screen (_session->current_start_frame ());
1484                 }
1485         }
1486 }
1487
1488 void
1489 ARDOUR_UI::transport_goto_zero ()
1490 {
1491         if (_session) {
1492                 _session->request_locate (0);
1493
1494                 /* force displayed area in editor to start no matter
1495                    what "follow playhead" setting is.
1496                 */
1497
1498                 if (editor) {
1499                         editor->reset_x_origin (0);
1500                 }
1501         }
1502 }
1503
1504 void
1505 ARDOUR_UI::transport_goto_wallclock ()
1506 {
1507         if (_session && editor) {
1508
1509                 time_t now;
1510                 struct tm tmnow;
1511                 framepos_t frames;
1512
1513                 time (&now);
1514                 localtime_r (&now, &tmnow);
1515
1516                 frames = tmnow.tm_hour * (60 * 60 * _session->frame_rate());
1517                 frames += tmnow.tm_min * (60 * _session->frame_rate());
1518                 frames += tmnow.tm_sec * _session->frame_rate();
1519
1520                 _session->request_locate (frames, _session->transport_rolling ());
1521
1522                 /* force displayed area in editor to start no matter
1523                    what "follow playhead" setting is.
1524                 */
1525
1526                 if (editor) {
1527                         editor->center_screen (frames);
1528                 }
1529         }
1530 }
1531
1532 void
1533 ARDOUR_UI::transport_goto_end ()
1534 {
1535         if (_session) {
1536                 framepos_t const frame = _session->current_end_frame();
1537                 _session->request_locate (frame);
1538
1539                 /* force displayed area in editor to start no matter
1540                    what "follow playhead" setting is.
1541                 */
1542
1543                 if (editor) {
1544                         editor->center_screen (frame);
1545                 }
1546         }
1547 }
1548
1549 void
1550 ARDOUR_UI::transport_stop ()
1551 {
1552         if (!_session) {
1553                 return;
1554         }
1555
1556         if (_session->is_auditioning()) {
1557                 _session->cancel_audition ();
1558                 return;
1559         }
1560
1561         _session->request_stop (false, true);
1562 }
1563
1564 void
1565 ARDOUR_UI::transport_record (bool roll)
1566 {
1567
1568         if (_session) {
1569                 switch (_session->record_status()) {
1570                 case Session::Disabled:
1571                         if (_session->ntracks() == 0) {
1572                                 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."));
1573                                 msg.run ();
1574                                 return;
1575                         }
1576                         _session->maybe_enable_record ();
1577                         if (roll) {
1578                                 transport_roll ();
1579                         }
1580                         break;
1581                 case Session::Recording:
1582                         if (roll) {
1583                                 _session->request_stop();
1584                         } else {
1585                                 _session->disable_record (false, true);
1586                         }
1587                         break;
1588
1589                 case Session::Enabled:
1590                         _session->disable_record (false, true);
1591                 }
1592         }
1593 }
1594
1595 void
1596 ARDOUR_UI::transport_roll ()
1597 {
1598         if (!_session) {
1599                 return;
1600         }
1601
1602         if (_session->is_auditioning()) {
1603                 return;
1604         }
1605
1606 #if 0
1607         if (_session->config.get_external_sync()) {
1608                 switch (Config->get_sync_source()) {
1609                 case JACK:
1610                         break;
1611                 default:
1612                         /* transport controlled by the master */
1613                         return;
1614                 }
1615         }
1616 #endif
1617
1618         bool rolling = _session->transport_rolling();
1619
1620         if (_session->get_play_loop()) {
1621                 /* XXX it is not possible to just leave seamless loop and keep
1622                    playing at present (nov 4th 2009)
1623                 */
1624                 if (!Config->get_seamless_loop()) {
1625                         _session->request_play_loop (false, true);
1626                 }
1627         } else if (_session->get_play_range () && !Config->get_always_play_range()) {
1628                 /* stop playing a range if we currently are */
1629                 _session->request_play_range (0, true);
1630         }
1631
1632         if (!rolling) {
1633                 _session->request_transport_speed (1.0f);
1634         }
1635 }
1636
1637 bool
1638 ARDOUR_UI::get_smart_mode() const
1639 {
1640         return ( editor->get_smart_mode() );
1641 }
1642
1643
1644 void
1645 ARDOUR_UI::toggle_roll (bool with_abort, bool roll_out_of_bounded_mode)
1646 {
1647
1648         if (!_session) {
1649                 return;
1650         }
1651
1652         if (_session->is_auditioning()) {
1653                 _session->cancel_audition ();
1654                 return;
1655         }
1656
1657         if (_session->config.get_external_sync()) {
1658                 switch (Config->get_sync_source()) {
1659                 case JACK:
1660                         break;
1661                 default:
1662                         /* transport controlled by the master */
1663                         return;
1664                 }
1665         }
1666
1667         bool rolling = _session->transport_rolling();
1668         bool affect_transport = true;
1669
1670         if (rolling && roll_out_of_bounded_mode) {
1671                 /* drop out of loop/range playback but leave transport rolling */
1672                 if (_session->get_play_loop()) {
1673                         if (Config->get_seamless_loop()) {
1674                                 /* the disk buffers contain copies of the loop - we can't
1675                                    just keep playing, so stop the transport. the user
1676                                    can restart as they wish.
1677                                 */
1678                                 affect_transport = true;
1679                         } else {
1680                                 /* disk buffers are normal, so we can keep playing */
1681                                 affect_transport = false;
1682                         }
1683                         _session->request_play_loop (false, true);
1684                 } else if (_session->get_play_range ()) {
1685                         affect_transport = false;
1686                         _session->request_play_range (0, true);
1687                 }
1688         }
1689
1690         if (affect_transport) {
1691                 if (rolling) {
1692                         _session->request_stop (with_abort, true);
1693                 } else {
1694                         if ( Config->get_always_play_range() ) {
1695                                 _session->request_play_range (&editor->get_selection().time, true);
1696                         }
1697
1698                         _session->request_transport_speed (1.0f);
1699                 }
1700         }
1701 }
1702
1703 void
1704 ARDOUR_UI::toggle_session_auto_loop ()
1705 {
1706         Location * looploc = _session->locations()->auto_loop_location();
1707
1708         if (!_session || !looploc) {
1709                 return;
1710         }
1711
1712         if (_session->get_play_loop()) {
1713
1714                 if (_session->transport_rolling()) {
1715
1716                         _session->request_locate (looploc->start(), true);
1717                         _session->request_play_loop (false);
1718
1719                 } else {
1720                         _session->request_play_loop (false);
1721                 }
1722         } else {
1723                 _session->request_play_loop (true);
1724         }
1725
1726         //show the loop markers
1727         looploc->set_hidden (false, this);
1728 }
1729
1730 void
1731 ARDOUR_UI::transport_play_selection ()
1732 {
1733         if (!_session) {
1734                 return;
1735         }
1736
1737         editor->play_selection ();
1738 }
1739
1740 void
1741 ARDOUR_UI::transport_play_preroll ()
1742 {
1743         if (!_session) {
1744                 return;
1745         }
1746         editor->play_with_preroll ();
1747 }
1748
1749 void
1750 ARDOUR_UI::transport_rewind (int option)
1751 {
1752         float current_transport_speed;
1753
1754         if (_session) {
1755                 current_transport_speed = _session->transport_speed();
1756
1757                 if (current_transport_speed >= 0.0f) {
1758                         switch (option) {
1759                         case 0:
1760                                 _session->request_transport_speed (-1.0f);
1761                                 break;
1762                         case 1:
1763                                 _session->request_transport_speed (-4.0f);
1764                                 break;
1765                         case -1:
1766                                 _session->request_transport_speed (-0.5f);
1767                                 break;
1768                         }
1769                 } else {
1770                         /* speed up */
1771                         _session->request_transport_speed (current_transport_speed * 1.5f);
1772                 }
1773         }
1774 }
1775
1776 void
1777 ARDOUR_UI::transport_forward (int option)
1778 {
1779         if (!_session) {
1780                 return;
1781         }
1782
1783         float current_transport_speed = _session->transport_speed();
1784
1785         if (current_transport_speed <= 0.0f) {
1786                 switch (option) {
1787                 case 0:
1788                         _session->request_transport_speed (1.0f);
1789                         break;
1790                 case 1:
1791                         _session->request_transport_speed (4.0f);
1792                         break;
1793                 case -1:
1794                         _session->request_transport_speed (0.5f);
1795                         break;
1796                 }
1797         } else {
1798                 /* speed up */
1799                 _session->request_transport_speed (current_transport_speed * 1.5f);
1800         }
1801 }
1802
1803 void
1804 ARDOUR_UI::toggle_record_enable (uint32_t rid)
1805 {
1806         if (!_session) {
1807                 return;
1808         }
1809
1810         boost::shared_ptr<Route> r;
1811
1812         if ((r = _session->route_by_remote_id (rid)) != 0) {
1813
1814                 Track* t;
1815
1816                 if ((t = dynamic_cast<Track*>(r.get())) != 0) {
1817                         t->set_record_enabled (!t->record_enabled(), this);
1818                 }
1819         }
1820 }
1821
1822 void
1823 ARDOUR_UI::map_transport_state ()
1824 {
1825         if (!_session) {
1826                 auto_loop_button.unset_active_state ();
1827                 play_selection_button.unset_active_state ();
1828                 roll_button.unset_active_state ();
1829                 stop_button.set_active_state (Gtkmm2ext::ExplicitActive);
1830                 return;
1831         }
1832
1833         shuttle_box->map_transport_state ();
1834
1835         float sp = _session->transport_speed();
1836
1837         if (sp != 0.0f) {
1838
1839                 /* we're rolling */
1840
1841                 if (_session->get_play_range()) {
1842
1843                         play_selection_button.set_active_state (Gtkmm2ext::ExplicitActive);
1844                         roll_button.unset_active_state ();
1845                         auto_loop_button.unset_active_state ();
1846
1847                 } else if (_session->get_play_loop ()) {
1848
1849                         auto_loop_button.set_active (true);
1850                         play_selection_button.set_active (false);
1851                         roll_button.set_active (false);
1852
1853                 } else {
1854
1855                         roll_button.set_active (true);
1856                         play_selection_button.set_active (false);
1857                         auto_loop_button.set_active (false);
1858                 }
1859
1860                 if (Config->get_always_play_range()) {
1861                         /* light up both roll and play-selection if they are joined */
1862                         roll_button.set_active (true);
1863                         play_selection_button.set_active (true);
1864                 }
1865
1866                 stop_button.set_active (false);
1867
1868         } else {
1869
1870                 stop_button.set_active (true);
1871                 roll_button.set_active (false);
1872                 play_selection_button.set_active (false);
1873                 auto_loop_button.set_active (false);
1874                 update_disk_space ();
1875         }
1876 }
1877
1878 void
1879 ARDOUR_UI::engine_stopped ()
1880 {
1881         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::engine_stopped)
1882         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, false);
1883         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, true);
1884 }
1885
1886 void
1887 ARDOUR_UI::engine_running ()
1888 {
1889         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::engine_running)
1890         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, true);
1891         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, false);
1892
1893         Glib::RefPtr<Action> action;
1894         const char* action_name = 0;
1895
1896         switch (engine->frames_per_cycle()) {
1897         case 32:
1898                 action_name = X_("JACKLatency32");
1899                 break;
1900         case 64:
1901                 action_name = X_("JACKLatency64");
1902                 break;
1903         case 128:
1904                 action_name = X_("JACKLatency128");
1905                 break;
1906         case 512:
1907                 action_name = X_("JACKLatency512");
1908                 break;
1909         case 1024:
1910                 action_name = X_("JACKLatency1024");
1911                 break;
1912         case 2048:
1913                 action_name = X_("JACKLatency2048");
1914                 break;
1915         case 4096:
1916                 action_name = X_("JACKLatency4096");
1917                 break;
1918         case 8192:
1919                 action_name = X_("JACKLatency8192");
1920                 break;
1921         default:
1922                 /* XXX can we do anything useful ? */
1923                 break;
1924         }
1925
1926         if (action_name) {
1927
1928                 action = ActionManager::get_action (X_("JACK"), action_name);
1929
1930                 if (action) {
1931                         Glib::RefPtr<RadioAction> ract = Glib::RefPtr<RadioAction>::cast_dynamic (action);
1932                         ract->set_active ();
1933                 }
1934         }
1935 }
1936
1937 void
1938 ARDOUR_UI::engine_halted (const char* reason, bool free_reason)
1939 {
1940         if (!Gtkmm2ext::UI::instance()->caller_is_ui_thread()) {
1941                 /* we can't rely on the original string continuing to exist when we are called
1942                    again in the GUI thread, so make a copy and note that we need to
1943                    free it later.
1944                 */
1945                 char *copy = strdup (reason);
1946                 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&ARDOUR_UI::engine_halted, this, copy, true));
1947                 return;
1948         }
1949
1950         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, false);
1951         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, true);
1952
1953         update_sample_rate (0);
1954
1955         string msgstr;
1956
1957         /* if the reason is a non-empty string, it means that the backend was shutdown
1958            rather than just Ardour.
1959         */
1960
1961         if (strlen (reason)) {
1962                 msgstr = string_compose (_("The audio backend (JACK) was shutdown because:\n\n%1"), reason);
1963         } else {
1964                 msgstr = string_compose (_("\
1965 JACK has either been shutdown or it\n\
1966 disconnected %1 because %1\n\
1967 was not fast enough. Try to restart\n\
1968 JACK, reconnect and save the session."), PROGRAM_NAME);
1969         }
1970
1971         MessageDialog msg (*editor, msgstr);
1972         pop_back_splash (msg);
1973         msg.run ();
1974
1975         if (free_reason) {
1976                 free (const_cast<char*> (reason));
1977         }
1978 }
1979
1980 int32_t
1981 ARDOUR_UI::do_engine_start ()
1982 {
1983         try {
1984                 engine->start();
1985         }
1986
1987         catch (...) {
1988                 engine->stop ();
1989                 error << _("Unable to start the session running")
1990                       << endmsg;
1991                 unload_session ();
1992                 return -2;
1993         }
1994
1995         return 0;
1996 }
1997
1998 void
1999 ARDOUR_UI::update_clocks ()
2000 {
2001         if (!editor || !editor->dragging_playhead()) {
2002                 Clock (_session->audible_frame(), false, editor->get_preferred_edit_position()); /* EMIT_SIGNAL */
2003         }
2004 }
2005
2006 void
2007 ARDOUR_UI::start_clocking ()
2008 {
2009         clock_signal_connection = RapidScreenUpdate.connect (sigc::mem_fun(*this, &ARDOUR_UI::update_clocks));
2010 }
2011
2012 void
2013 ARDOUR_UI::stop_clocking ()
2014 {
2015         clock_signal_connection.disconnect ();
2016 }
2017
2018 gint
2019 ARDOUR_UI::_blink (void *arg)
2020 {
2021         ((ARDOUR_UI *) arg)->blink ();
2022         return TRUE;
2023 }
2024
2025 void
2026 ARDOUR_UI::blink ()
2027 {
2028         Blink (blink_on = !blink_on); /* EMIT_SIGNAL */
2029 }
2030
2031 void
2032 ARDOUR_UI::start_blinking ()
2033 {
2034         /* Start the blink signal. Everybody with a blinking widget
2035            uses Blink to drive the widget's state.
2036         */
2037
2038         if (blink_timeout_tag < 0) {
2039                 blink_on = false;
2040                 blink_timeout_tag = g_timeout_add (240, _blink, this);
2041         }
2042 }
2043
2044 void
2045 ARDOUR_UI::stop_blinking ()
2046 {
2047         if (blink_timeout_tag >= 0) {
2048                 g_source_remove (blink_timeout_tag);
2049                 blink_timeout_tag = -1;
2050         }
2051 }
2052
2053
2054 /** Ask the user for the name of a new snapshot and then take it.
2055  */
2056
2057 void
2058 ARDOUR_UI::snapshot_session (bool switch_to_it)
2059 {
2060         ArdourPrompter prompter (true);
2061         string snapname;
2062
2063         prompter.set_name ("Prompter");
2064         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2065         prompter.set_title (_("Take Snapshot"));
2066         prompter.set_prompt (_("Name of new snapshot"));
2067
2068         if (!switch_to_it) {
2069                 char timebuf[128];
2070                 time_t n;
2071                 struct tm local_time;
2072
2073                 time (&n);
2074                 localtime_r (&n, &local_time);
2075                 strftime (timebuf, sizeof(timebuf), "%FT%H.%M.%S", &local_time);
2076                 prompter.set_initial_text (timebuf);
2077         }
2078
2079   again:
2080         switch (prompter.run()) {
2081         case RESPONSE_ACCEPT:
2082         {
2083                 prompter.get_result (snapname);
2084
2085                 bool do_save = (snapname.length() != 0);
2086
2087                 if (do_save) {
2088                         char illegal = Session::session_name_is_legal(snapname);
2089                         if (illegal) {
2090                                 MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
2091                                                      "snapshot names may not contain a '%1' character"), illegal));
2092                                 msg.run ();
2093                                 goto again;
2094                         }
2095                 }
2096
2097                 vector<std::string> p;
2098                 get_state_files_in_directory (_session->session_directory().root_path(), p);
2099                 vector<string> n = get_file_names_no_extension (p);
2100                 if (find (n.begin(), n.end(), snapname) != n.end()) {
2101
2102                         ArdourDialog confirm (_("Confirm Snapshot Overwrite"), true);
2103                         Label m (_("A snapshot already exists with that name.  Do you want to overwrite it?"));
2104                         confirm.get_vbox()->pack_start (m, true, true);
2105                         confirm.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2106                         confirm.add_button (_("Overwrite"), Gtk::RESPONSE_ACCEPT);
2107                         confirm.show_all ();
2108                         switch (confirm.run()) {
2109                         case RESPONSE_CANCEL:
2110                                 do_save = false;
2111                         }
2112                 }
2113
2114                 if (do_save) {
2115                         save_state (snapname, switch_to_it);
2116                 }
2117                 break;
2118         }
2119
2120         default:
2121                 break;
2122         }
2123 }
2124
2125 /** Ask the user for a new session name and then rename the session to it.
2126  */
2127
2128 void
2129 ARDOUR_UI::rename_session ()
2130 {
2131         if (!_session) {
2132                 return;
2133         }
2134
2135         ArdourPrompter prompter (true);
2136         string name;
2137
2138         prompter.set_name ("Prompter");
2139         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2140         prompter.set_title (_("Rename Session"));
2141         prompter.set_prompt (_("New session name"));
2142
2143   again:
2144         switch (prompter.run()) {
2145         case RESPONSE_ACCEPT:
2146         {
2147                 prompter.get_result (name);
2148
2149                 bool do_rename = (name.length() != 0);
2150
2151                 if (do_rename) {
2152                         char illegal = Session::session_name_is_legal (name);
2153
2154                         if (illegal) {
2155                                 MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
2156                                                                      "session names may not contain a '%1' character"), illegal));
2157                                 msg.run ();
2158                                 goto again;
2159                         }
2160
2161                         switch (_session->rename (name)) {
2162                         case -1: {
2163                                 MessageDialog msg (_("That name is already in use by another directory/folder. Please try again."));
2164                                 msg.set_position (WIN_POS_MOUSE);
2165                                 msg.run ();
2166                                 goto again;
2167                                 break;
2168                         }
2169                         case 0:
2170                                 break;
2171                         default: {
2172                                 MessageDialog msg (_("Renaming this session failed.\nThings could be seriously messed up at this point"));
2173                                 msg.set_position (WIN_POS_MOUSE);
2174                                 msg.run ();
2175                                 break;
2176                         }
2177                         }
2178                 }
2179
2180                 break;
2181         }
2182
2183         default:
2184                 break;
2185         }
2186 }
2187
2188 void
2189 ARDOUR_UI::save_state (const string & name, bool switch_to_it)
2190 {
2191         XMLNode* node = new XMLNode (X_("UI"));
2192
2193         for (list<WindowProxyBase*>::iterator i = _window_proxies.begin(); i != _window_proxies.end(); ++i) {
2194                 if (!(*i)->rc_configured()) {
2195                         node->add_child_nocopy (*((*i)->get_state ()));
2196                 }
2197         }
2198
2199         node->add_child_nocopy (gui_object_state->get_state());
2200
2201         _session->add_extra_xml (*node);
2202
2203         save_state_canfail (name, switch_to_it);
2204 }
2205
2206 int
2207 ARDOUR_UI::save_state_canfail (string name, bool switch_to_it)
2208 {
2209         if (_session) {
2210                 int ret;
2211
2212                 if (name.length() == 0) {
2213                         name = _session->snap_name();
2214                 }
2215
2216                 if ((ret = _session->save_state (name, false, switch_to_it)) != 0) {
2217                         return ret;
2218                 }
2219         }
2220
2221         save_ardour_state (); /* XXX cannot fail? yeah, right ... */
2222         return 0;
2223 }
2224
2225 void
2226 ARDOUR_UI::primary_clock_value_changed ()
2227 {
2228         if (_session) {
2229                 _session->request_locate (primary_clock->current_time ());
2230         }
2231 }
2232
2233 void
2234 ARDOUR_UI::big_clock_value_changed ()
2235 {
2236         if (_session) {
2237                 _session->request_locate (big_clock->current_time ());
2238         }
2239 }
2240
2241 void
2242 ARDOUR_UI::secondary_clock_value_changed ()
2243 {
2244         if (_session) {
2245                 _session->request_locate (secondary_clock->current_time ());
2246         }
2247 }
2248
2249 void
2250 ARDOUR_UI::transport_rec_enable_blink (bool onoff)
2251 {
2252         if (_session == 0) {
2253                 return;
2254         }
2255
2256         if (_session->step_editing()) {
2257                 return;
2258         }
2259
2260         Session::RecordState const r = _session->record_status ();
2261         bool const h = _session->have_rec_enabled_track ();
2262
2263         if (r == Session::Enabled || (r == Session::Recording && !h)) {
2264                 if (onoff) {
2265                         rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
2266                 } else {
2267                         rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
2268                 }
2269         } else if (r == Session::Recording && h) {
2270                 rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
2271         } else {
2272                 rec_button.unset_active_state ();
2273         }
2274 }
2275
2276 void
2277 ARDOUR_UI::save_template ()
2278 {
2279         ArdourPrompter prompter (true);
2280         string name;
2281
2282         if (!check_audioengine()) {
2283                 return;
2284         }
2285
2286         prompter.set_name (X_("Prompter"));
2287         prompter.set_title (_("Save Template"));
2288         prompter.set_prompt (_("Name for template:"));
2289         prompter.set_initial_text(_session->name() + _("-template"));
2290         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2291
2292         switch (prompter.run()) {
2293         case RESPONSE_ACCEPT:
2294                 prompter.get_result (name);
2295
2296                 if (name.length()) {
2297                         _session->save_template (name);
2298                 }
2299                 break;
2300
2301         default:
2302                 break;
2303         }
2304 }
2305
2306 void
2307 ARDOUR_UI::edit_metadata ()
2308 {
2309         SessionMetadataEditor dialog;
2310         dialog.set_session (_session);
2311         editor->ensure_float (dialog);
2312         dialog.run ();
2313 }
2314
2315 void
2316 ARDOUR_UI::import_metadata ()
2317 {
2318         SessionMetadataImporter dialog;
2319         dialog.set_session (_session);
2320         editor->ensure_float (dialog);
2321         dialog.run ();
2322 }
2323
2324 bool
2325 ARDOUR_UI::ask_about_loading_existing_session (const std::string& session_path)
2326 {
2327         std::string str = string_compose (_("This session\n%1\nalready exists. Do you want to open it?"), session_path);
2328
2329         MessageDialog msg (str,
2330                            false,
2331                            Gtk::MESSAGE_WARNING,
2332                            Gtk::BUTTONS_YES_NO,
2333                            true);
2334
2335
2336         msg.set_name (X_("OpenExistingDialog"));
2337         msg.set_title (_("Open Existing Session"));
2338         msg.set_wmclass (X_("existing_session"), PROGRAM_NAME);
2339         msg.set_position (Gtk::WIN_POS_MOUSE);
2340         pop_back_splash (msg);
2341
2342         switch (msg.run()) {
2343         case RESPONSE_YES:
2344                 return true;
2345                 break;
2346         }
2347         return false;
2348 }
2349
2350 int
2351 ARDOUR_UI::build_session_from_nsd (const std::string& session_path, const std::string& session_name)
2352 {
2353         BusProfile bus_profile;
2354
2355         if (Profile->get_sae()) {
2356
2357                 bus_profile.master_out_channels = 2;
2358                 bus_profile.input_ac = AutoConnectPhysical;
2359                 bus_profile.output_ac = AutoConnectMaster;
2360                 bus_profile.requested_physical_in = 0; // use all available
2361                 bus_profile.requested_physical_out = 0; // use all available
2362
2363         } else {
2364
2365                 /* get settings from advanced section of NSD */
2366
2367                 if (_startup->create_master_bus()) {
2368                         bus_profile.master_out_channels = (uint32_t) _startup->master_channel_count();
2369                 } else {
2370                         bus_profile.master_out_channels = 0;
2371                 }
2372
2373                 if (_startup->connect_inputs()) {
2374                         bus_profile.input_ac = AutoConnectPhysical;
2375                 } else {
2376                         bus_profile.input_ac = AutoConnectOption (0);
2377                 }
2378
2379                 bus_profile.output_ac = AutoConnectOption (0);
2380
2381                 if (_startup->connect_outputs ()) {
2382                         if (_startup->connect_outs_to_master()) {
2383                                 bus_profile.output_ac = AutoConnectMaster;
2384                         } else if (_startup->connect_outs_to_physical()) {
2385                                 bus_profile.output_ac = AutoConnectPhysical;
2386                         }
2387                 }
2388
2389                 bus_profile.requested_physical_in = (uint32_t) _startup->input_limit_count();
2390                 bus_profile.requested_physical_out = (uint32_t) _startup->output_limit_count();
2391         }
2392
2393         if (build_session (session_path, session_name, bus_profile)) {
2394                 return -1;
2395         }
2396
2397         return 0;
2398 }
2399
2400 void
2401 ARDOUR_UI::idle_load (const std::string& path)
2402 {
2403         if (_session) {
2404                 if (Glib::file_test (path, Glib::FILE_TEST_IS_DIR)) {
2405                         /* /path/to/foo => /path/to/foo, foo */
2406                         load_session (path, basename_nosuffix (path));
2407                 } else {
2408                         /* /path/to/foo/foo.ardour => /path/to/foo, foo */
2409                         load_session (Glib::path_get_dirname (path), basename_nosuffix (path));
2410                 }
2411
2412         } else {
2413                 ARDOUR_COMMAND_LINE::session_name = path;
2414         }
2415 }
2416
2417 /** @param quit_on_cancel true if exit() should be called if the user clicks `cancel' in the new session dialog */
2418 int
2419 ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, string load_template)
2420 {
2421         string session_name;
2422         string session_path;
2423         string template_name;
2424         int ret = -1;
2425         bool likely_new = false;
2426
2427         /* deal with any existing DIRTY session now, rather than later. don't
2428          * treat a non-dirty session this way, so that it stays visible
2429          * as we bring up the new session dialog.
2430          */
2431
2432         if (_session && _session->dirty()) {
2433                 if (unload_session (false)) {
2434                         /* unload cancelled by user */
2435                         return 0;
2436                 }
2437                 ARDOUR_COMMAND_LINE::session_name = "";
2438         }
2439
2440         if (!load_template.empty()) {
2441                 should_be_new = true;
2442                 template_name = load_template;
2443         }
2444
2445         while (ret != 0) {
2446
2447                 if (!ARDOUR_COMMAND_LINE::session_name.empty()) {
2448
2449                         /* if they named a specific statefile, use it, otherwise they are
2450                            just giving a session folder, and we want to use it as is
2451                            to find the session.
2452                         */
2453
2454                         string::size_type suffix = ARDOUR_COMMAND_LINE::session_name.find (statefile_suffix);
2455
2456                         if (suffix != string::npos) {
2457                                 session_path = Glib::path_get_dirname (ARDOUR_COMMAND_LINE::session_name);
2458                                 session_name = ARDOUR_COMMAND_LINE::session_name.substr (0, suffix);
2459                                 session_name = Glib::path_get_basename (session_name);
2460                         } else {
2461                                 session_path = ARDOUR_COMMAND_LINE::session_name;
2462                                 session_name = Glib::path_get_basename (ARDOUR_COMMAND_LINE::session_name);
2463                         }
2464                 } else {
2465                         session_path = "";
2466                         session_name = "";
2467                 }
2468
2469                 delete _startup;
2470                 _startup = new ArdourStartup (should_be_new, session_name, session_path, load_template);
2471
2472                 if (!_startup->ready_without_display()) {
2473                         _startup->present ();
2474                         main().run();
2475                         _startup->hide ();
2476                 }
2477
2478                 switch (_startup->response()) {
2479                 case RESPONSE_OK:
2480                         break;
2481                 default:
2482                         if (quit_on_cancel) {
2483                                 exit (1);
2484                         } else {
2485                                 return ret;
2486                         }
2487                 }
2488
2489                 /* if we run the startup dialog again, offer more than just "new session" */
2490
2491                 should_be_new = false;
2492
2493                 session_name = _startup->session_name (likely_new);
2494
2495                 string::size_type suffix = session_name.find (statefile_suffix);
2496
2497                 if (suffix != string::npos) {
2498                         session_name = session_name.substr (0, suffix);
2499                 }
2500
2501                 /* this shouldn't happen, but we catch it just in case it does */
2502
2503                 if (session_name.empty()) {
2504                         continue;
2505                 }
2506
2507                 if (_startup->use_session_template()) {
2508                         template_name = _startup->session_template_name();
2509                         _session_is_new = true;
2510                 }
2511
2512                 if (session_name[0] == G_DIR_SEPARATOR ||
2513                     (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == G_DIR_SEPARATOR) ||
2514                     (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == G_DIR_SEPARATOR)) {
2515
2516                         /* absolute path or cwd-relative path specified for session name: infer session folder
2517                            from what was given.
2518                         */
2519
2520                         session_path = Glib::path_get_dirname (session_name);
2521                         session_name = Glib::path_get_basename (session_name);
2522
2523                 } else {
2524
2525                         session_path = _startup->session_folder();
2526
2527                         char illegal = Session::session_name_is_legal (session_name);
2528
2529                         if (illegal) {
2530                                 MessageDialog msg (*_startup,
2531                                                    string_compose (_("To ensure compatibility with various systems\n"
2532                                                                      "session names may not contain a '%1' character"),
2533                                                                    illegal));
2534                                 msg.run ();
2535                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2536                                 continue;
2537                         }
2538                 }
2539
2540                 if (create_engine ()) {
2541                         break;
2542                 }
2543
2544                 if (Glib::file_test (session_path, Glib::FileTest (G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))) {
2545
2546                         if (likely_new) {
2547
2548                                 std::string existing = Glib::build_filename (session_path, session_name);
2549
2550                                 if (!ask_about_loading_existing_session (existing)) {
2551                                         ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2552                                         continue;
2553                                 }
2554                         }
2555
2556                         _session_is_new = false;
2557
2558                 } else {
2559
2560                         if (!likely_new) {
2561                                 if (_startup) {
2562                                         pop_back_splash (*_startup);
2563                                 } else {
2564                                         hide_splash ();
2565                                 }
2566
2567                                 MessageDialog msg (string_compose (_("There is no existing session at \"%1\""), session_path));
2568                                 msg.run ();
2569                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2570                                 continue;
2571                         }
2572
2573                         char illegal = Session::session_name_is_legal(session_name);
2574                         if (illegal) {
2575                                 pop_back_splash (*_startup);
2576                                 MessageDialog msg (*_startup, string_compose(_("To ensure compatibility with various systems\n"
2577                                                      "session names may not contain a '%1' character"), illegal));
2578                                 msg.run ();
2579                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2580                                 continue;
2581                         }
2582
2583                         _session_is_new = true;
2584                 }
2585
2586                 if (likely_new && template_name.empty()) {
2587
2588                         ret = build_session_from_nsd (session_path, session_name);
2589
2590                 } else {
2591
2592                         ret = load_session (session_path, session_name, template_name);
2593
2594                         if (ret == -2) {
2595                                 /* not connected to the AudioEngine, so quit to avoid an infinite loop */
2596                                 exit (1);
2597                         }
2598
2599                         if (!ARDOUR_COMMAND_LINE::immediate_save.empty()) {
2600                                 _session->save_state (ARDOUR_COMMAND_LINE::immediate_save, false);
2601                                 exit (1);
2602                         }
2603                 }
2604         }
2605
2606         return ret;
2607 }
2608
2609 void
2610 ARDOUR_UI::close_session()
2611 {
2612         if (!check_audioengine()) {
2613                 return;
2614         }
2615
2616         if (unload_session (true)) {
2617                 return;
2618         }
2619
2620         ARDOUR_COMMAND_LINE::session_name = "";
2621
2622         if (get_session_parameters (true, false)) {
2623                 exit (1);
2624         }
2625
2626         goto_editor_window ();
2627 }
2628
2629 /** @param snap_name Snapshot name (without .ardour suffix).
2630  *  @return -2 if the load failed because we are not connected to the AudioEngine.
2631  */
2632 int
2633 ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name, std::string mix_template)
2634 {
2635         Session *new_session;
2636         int unload_status;
2637         int retval = -1;
2638
2639         session_loaded = false;
2640
2641         if (!check_audioengine()) {
2642                 return -2;
2643         }
2644
2645         unload_status = unload_session ();
2646
2647         if (unload_status < 0) {
2648                 goto out;
2649         } else if (unload_status > 0) {
2650                 retval = 0;
2651                 goto out;
2652         }
2653
2654         loading_message (string_compose (_("Please wait while %1 loads your session"), PROGRAM_NAME));
2655
2656         try {
2657                 new_session = new Session (*engine, path, snap_name, 0, mix_template);
2658         }
2659
2660         /* this one is special */
2661
2662         catch (AudioEngine::PortRegistrationFailure& err) {
2663
2664                 MessageDialog msg (err.what(),
2665                                    true,
2666                                    Gtk::MESSAGE_INFO,
2667                                    Gtk::BUTTONS_CLOSE);
2668
2669                 msg.set_title (_("Port Registration Error"));
2670                 msg.set_secondary_text (_("Click the Close button to try again."));
2671                 msg.set_position (Gtk::WIN_POS_CENTER);
2672                 pop_back_splash (msg);
2673                 msg.present ();
2674
2675                 int response = msg.run ();
2676
2677                 msg.hide ();
2678
2679                 switch (response) {
2680                 case RESPONSE_CANCEL:
2681                         exit (1);
2682                 default:
2683                         break;
2684                 }
2685                 goto out;
2686         }
2687
2688         catch (...) {
2689
2690                 MessageDialog msg (string_compose(
2691                                            _("Session \"%1 (snapshot %2)\" did not load successfully"),
2692                                            path, snap_name),
2693                                    true,
2694                                    Gtk::MESSAGE_INFO,
2695                                    BUTTONS_OK);
2696
2697                 msg.set_title (_("Loading Error"));
2698                 msg.set_secondary_text (_("Click the Refresh button to try again."));
2699                 msg.add_button (Stock::REFRESH, 1);
2700                 msg.set_position (Gtk::WIN_POS_CENTER);
2701                 pop_back_splash (msg);
2702                 msg.present ();
2703
2704                 int response = msg.run ();
2705
2706                 switch (response) {
2707                 case 1:
2708                         break;
2709                 default:
2710                         exit (1);
2711                 }
2712
2713                 msg.hide ();
2714
2715                 goto out;
2716         }
2717
2718         {
2719                 list<string> const u = new_session->unknown_processors ();
2720                 if (!u.empty()) {
2721                         MissingPluginDialog d (_session, u);
2722                         d.run ();
2723                 }
2724         }
2725
2726         /* Now the session been created, add the transport controls */
2727         new_session->add_controllable(roll_controllable);
2728         new_session->add_controllable(stop_controllable);
2729         new_session->add_controllable(goto_start_controllable);
2730         new_session->add_controllable(goto_end_controllable);
2731         new_session->add_controllable(auto_loop_controllable);
2732         new_session->add_controllable(play_selection_controllable);
2733         new_session->add_controllable(rec_controllable);
2734
2735         set_session (new_session);
2736
2737         session_loaded = true;
2738
2739         goto_editor_window ();
2740
2741         if (_session) {
2742                 _session->set_clean ();
2743         }
2744
2745         flush_pending ();
2746         retval = 0;
2747
2748   out:
2749         return retval;
2750 }
2751
2752 int
2753 ARDOUR_UI::build_session (const std::string& path, const std::string& snap_name, BusProfile& bus_profile)
2754 {
2755         Session *new_session;
2756         int x;
2757
2758         if (!check_audioengine()) {
2759                 return -1;
2760         }
2761
2762         session_loaded = false;
2763
2764         x = unload_session ();
2765
2766         if (x < 0) {
2767                 return -1;
2768         } else if (x > 0) {
2769                 return 0;
2770         }
2771
2772         _session_is_new = true;
2773
2774         try {
2775                 new_session = new Session (*engine, path, snap_name, &bus_profile);
2776         }
2777
2778         catch (...) {
2779
2780                 MessageDialog msg (string_compose(_("Could not create session in \"%1\""), path));
2781                 pop_back_splash (msg);
2782                 msg.run ();
2783                 return -1;
2784         }
2785
2786         /* Give the new session the default GUI state, if such things exist */
2787
2788         XMLNode* n;
2789         n = Config->instant_xml (X_("Editor"));
2790         if (n) {
2791                 new_session->add_instant_xml (*n, false);
2792         }
2793         n = Config->instant_xml (X_("Mixer"));
2794         if (n) {
2795                 new_session->add_instant_xml (*n, false);
2796         }
2797
2798         /* Put the playhead at 0 and scroll fully left */
2799         n = new_session->instant_xml (X_("Editor"));
2800         if (n) {
2801                 n->add_property (X_("playhead"), X_("0"));
2802                 n->add_property (X_("left-frame"), X_("0"));
2803         }
2804
2805         set_session (new_session);
2806
2807         session_loaded = true;
2808
2809         new_session->save_state(new_session->name());
2810
2811         return 0;
2812 }
2813
2814 void
2815 ARDOUR_UI::launch_chat ()
2816 {
2817 #ifdef __APPLE__
2818         open_uri("http://webchat.freenode.net/?channels=ardour-osx");
2819 #else
2820         open_uri("http://webchat.freenode.net/?channels=ardour");
2821 #endif
2822 }
2823
2824 void
2825 ARDOUR_UI::show_about ()
2826 {
2827         if (about == 0) {
2828                 about = new About;
2829                 about->signal_response().connect (sigc::mem_fun (*this, &ARDOUR_UI::about_signal_response));
2830         }
2831
2832         about->set_transient_for(*editor);
2833         about->show_all ();
2834 }
2835
2836 void
2837 ARDOUR_UI::launch_manual ()
2838 {
2839         PBD::open_uri("http://ardour.org/flossmanual");
2840 }
2841
2842 void
2843 ARDOUR_UI::launch_reference ()
2844 {
2845         PBD::open_uri ("http://ardour.org/refmanual");
2846 }
2847
2848 void
2849 ARDOUR_UI::hide_about ()
2850 {
2851         if (about) {
2852                 about->get_window()->set_cursor ();
2853                 about->hide ();
2854         }
2855 }
2856
2857 void
2858 ARDOUR_UI::about_signal_response (int /*response*/)
2859 {
2860         hide_about();
2861 }
2862
2863 void
2864 ARDOUR_UI::loading_message (const std::string& msg)
2865 {
2866         if (ARDOUR_COMMAND_LINE::no_splash) {
2867                 return;
2868         }
2869
2870         if (!splash) {
2871                 show_splash ();
2872         }
2873
2874         splash->message (msg);
2875 }
2876
2877 void
2878 ARDOUR_UI::show_splash ()
2879 {
2880         if (splash == 0) {
2881                 try {
2882                         splash = new Splash;
2883                 } catch (...) {
2884                         return;
2885                 }
2886         }
2887
2888         splash->display ();
2889 }
2890
2891 void
2892 ARDOUR_UI::hide_splash ()
2893 {
2894         delete splash;
2895         splash = 0;
2896 }
2897
2898 void
2899 ARDOUR_UI::display_cleanup_results (ARDOUR::CleanupReport& rep, const gchar* list_title,
2900                                     const string& plural_msg, const string& singular_msg)
2901 {
2902         size_t removed;
2903
2904         removed = rep.paths.size();
2905
2906         if (removed == 0) {
2907                 MessageDialog msgd (*editor,
2908                                     _("No files were ready for clean-up"),
2909                                     true,
2910                                     Gtk::MESSAGE_INFO,
2911                                     Gtk::BUTTONS_OK);
2912                 msgd.set_title (_("Clean-up"));
2913                 msgd.set_secondary_text (_("If this seems suprising, \n\
2914 check for any existing snapshots.\n\
2915 These may still include regions that\n\
2916 require some unused files to continue to exist."));
2917
2918                 msgd.run ();
2919                 return;
2920         }
2921
2922         ArdourDialog results (_("Clean-up"), true, false);
2923
2924         struct CleanupResultsModelColumns : public Gtk::TreeModel::ColumnRecord {
2925             CleanupResultsModelColumns() {
2926                     add (visible_name);
2927                     add (fullpath);
2928             }
2929             Gtk::TreeModelColumn<std::string> visible_name;
2930             Gtk::TreeModelColumn<std::string> fullpath;
2931         };
2932
2933
2934         CleanupResultsModelColumns results_columns;
2935         Glib::RefPtr<Gtk::ListStore> results_model;
2936         Gtk::TreeView results_display;
2937
2938         results_model = ListStore::create (results_columns);
2939         results_display.set_model (results_model);
2940         results_display.append_column (list_title, results_columns.visible_name);
2941
2942         results_display.set_name ("CleanupResultsList");
2943         results_display.set_headers_visible (true);
2944         results_display.set_headers_clickable (false);
2945         results_display.set_reorderable (false);
2946
2947         Gtk::ScrolledWindow list_scroller;
2948         Gtk::Label txt;
2949         Gtk::VBox dvbox;
2950         Gtk::HBox dhbox;  // the hbox for the image and text
2951         Gtk::HBox ddhbox; // the hbox we eventually pack into the dialog's vbox
2952         Gtk::Image* dimage = manage (new Gtk::Image(Stock::DIALOG_INFO,  Gtk::ICON_SIZE_DIALOG));
2953
2954         dimage->set_alignment(ALIGN_LEFT, ALIGN_TOP);
2955
2956         const string dead_directory = _session->session_directory().dead_path();
2957
2958         /* subst:
2959            %1 - number of files removed
2960            %2 - location of "dead"
2961            %3 - size of files affected
2962            %4 - prefix for "bytes" to produce sensible results (e.g. mega, kilo, giga)
2963         */
2964
2965         const char* bprefix;
2966         double space_adjusted = 0;
2967
2968         if (rep.space < 1000) {
2969                 bprefix = _("");
2970                 space_adjusted = rep.space;
2971         } else if (rep.space < 1000000) {
2972                 bprefix = _("kilo");
2973                 space_adjusted = truncf((float)rep.space / 1000.0);
2974         } else if (rep.space < 1000000 * 1000) {
2975                 bprefix = _("mega");
2976                 space_adjusted = truncf((float)rep.space / (1000.0 * 1000.0));
2977         } else {
2978                 bprefix = _("giga");
2979                 space_adjusted = truncf((float)rep.space / (1000.0 * 1000 * 1000.0));
2980         }
2981
2982         if (removed > 1) {
2983                 txt.set_markup (string_compose (plural_msg, removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
2984         } else {
2985                 txt.set_markup (string_compose (singular_msg, removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
2986         }
2987
2988         dhbox.pack_start (*dimage, true, false, 5);
2989         dhbox.pack_start (txt, true, false, 5);
2990
2991         for (vector<string>::iterator i = rep.paths.begin(); i != rep.paths.end(); ++i) {
2992                 TreeModel::Row row = *(results_model->append());
2993                 row[results_columns.visible_name] = *i;
2994                 row[results_columns.fullpath] = *i;
2995         }
2996
2997         list_scroller.add (results_display);
2998         list_scroller.set_size_request (-1, 150);
2999         list_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
3000
3001         dvbox.pack_start (dhbox, true, false, 5);
3002         dvbox.pack_start (list_scroller, true, false, 5);
3003         ddhbox.pack_start (dvbox, true, false, 5);
3004
3005         results.get_vbox()->pack_start (ddhbox, true, false, 5);
3006         results.add_button (Stock::CLOSE, RESPONSE_CLOSE);
3007         results.set_default_response (RESPONSE_CLOSE);
3008         results.set_position (Gtk::WIN_POS_MOUSE);
3009
3010         results_display.show();
3011         list_scroller.show();
3012         txt.show();
3013         dvbox.show();
3014         dhbox.show();
3015         ddhbox.show();
3016         dimage->show();
3017
3018         //results.get_vbox()->show();
3019         results.set_resizable (false);
3020
3021         results.run ();
3022
3023 }
3024
3025 void
3026 ARDOUR_UI::cleanup ()
3027 {
3028         if (_session == 0) {
3029                 /* shouldn't happen: menu item is insensitive */
3030                 return;
3031         }
3032
3033
3034         MessageDialog checker (_("Are you sure you want to clean-up?"),
3035                                 true,
3036                                 Gtk::MESSAGE_QUESTION,
3037                                 Gtk::BUTTONS_NONE);
3038
3039         checker.set_title (_("Clean-up"));
3040
3041         checker.set_secondary_text(_("Clean-up is a destructive operation.\n\
3042 ALL undo/redo information will be lost if you clean-up.\n\
3043 Clean-up will move all unused files to a \"dead\" location."));
3044
3045         checker.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3046         checker.add_button (_("Clean-up"), RESPONSE_ACCEPT);
3047         checker.set_default_response (RESPONSE_CANCEL);
3048
3049         checker.set_name (_("CleanupDialog"));
3050         checker.set_wmclass (X_("ardour_cleanup"), PROGRAM_NAME);
3051         checker.set_position (Gtk::WIN_POS_MOUSE);
3052
3053         switch (checker.run()) {
3054         case RESPONSE_ACCEPT:
3055                 break;
3056         default:
3057                 return;
3058         }
3059
3060         ARDOUR::CleanupReport rep;
3061
3062         editor->prepare_for_cleanup ();
3063
3064         /* do not allow flush until a session is reloaded */
3065
3066         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Main"), X_("FlushWastebasket"));
3067         if (act) {
3068                 act->set_sensitive (false);
3069         }
3070
3071         if (_session->cleanup_sources (rep)) {
3072                 editor->finish_cleanup ();
3073                 return;
3074         }
3075
3076         editor->finish_cleanup ();
3077
3078         checker.hide();
3079         display_cleanup_results (rep,
3080                                  _("Cleaned Files"),
3081                                  _("\
3082 The following %1 files were not in use and \n\
3083 have been moved to: %2\n\n\
3084 After a restart of %5\n\n\
3085 <span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
3086 will release an additional %3 %4bytes of disk space.\n"),
3087                                  _("\
3088 The following file was not in use and \n\
3089 has been moved to: %2\n\n\
3090 After a restart of %5\n\n\
3091 <span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
3092 will release an additional %3 %4bytes of disk space.\n"
3093                                          ));
3094
3095 }
3096
3097 void
3098 ARDOUR_UI::flush_trash ()
3099 {
3100         if (_session == 0) {
3101                 /* shouldn't happen: menu item is insensitive */
3102                 return;
3103         }
3104
3105         ARDOUR::CleanupReport rep;
3106
3107         if (_session->cleanup_trash_sources (rep)) {
3108                 return;
3109         }
3110
3111         display_cleanup_results (rep,
3112                                  _("deleted file"),
3113                                  _("The following %1 files were deleted from %2,\n\
3114 releasing %3 %4bytes of disk space"),
3115                                  _("The following file was deleted from %2,\n\
3116 releasing %3 %4bytes of disk space"));
3117 }
3118
3119 void
3120 ARDOUR_UI::add_route (Gtk::Window* float_window)
3121 {
3122         int count;
3123
3124         if (!_session) {
3125                 return;
3126         }
3127
3128         if (add_route_dialog == 0) {
3129                 add_route_dialog = new AddRouteDialog (_session);
3130                 add_route_dialog->set_position (WIN_POS_MOUSE);
3131                 if (float_window) {
3132                         add_route_dialog->set_transient_for (*float_window);
3133                 }
3134         }
3135
3136         if (add_route_dialog->is_visible()) {
3137                 /* we're already doing this */
3138                 return;
3139         }
3140
3141         ResponseType r = (ResponseType) add_route_dialog->run ();
3142
3143         add_route_dialog->hide();
3144
3145         switch (r) {
3146                 case RESPONSE_ACCEPT:
3147                         break;
3148                 default:
3149                         return;
3150                         break;
3151         }
3152
3153         if ((count = add_route_dialog->count()) <= 0) {
3154                 return;
3155         }
3156
3157         PBD::ScopedConnection idle_connection;
3158
3159         if (count > 8) {
3160                 ARDOUR::GUIIdle.connect (idle_connection, MISSING_INVALIDATOR, boost::bind (&Gtkmm2ext::UI::flush_pending, this), gui_context());
3161         }
3162
3163         string template_path = add_route_dialog->track_template();
3164
3165         if (!template_path.empty()) {
3166                 _session->new_route_from_template (count, template_path);
3167                 return;
3168         }
3169
3170         ChanCount input_chan= add_route_dialog->channels ();
3171         ChanCount output_chan;
3172         string name_template = add_route_dialog->name_template ();
3173         PluginInfoPtr instrument = add_route_dialog->requested_instrument ();
3174         RouteGroup* route_group = add_route_dialog->route_group ();
3175         AutoConnectOption oac = Config->get_output_auto_connect();
3176
3177         if (oac & AutoConnectMaster) {
3178                 output_chan.set (DataType::AUDIO, (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan.n_audio()));
3179                 output_chan.set (DataType::MIDI, 0);
3180         } else {
3181                 output_chan = input_chan;
3182         }
3183
3184         /* XXX do something with name template */
3185
3186         switch (add_route_dialog->type_wanted()) {
3187         case AddRouteDialog::AudioTrack:
3188                 session_add_audio_track (input_chan.n_audio(), output_chan.n_audio(), add_route_dialog->mode(), route_group, count, name_template);
3189                 break;
3190         case AddRouteDialog::MidiTrack:
3191                 session_add_midi_track (route_group, count, name_template, instrument);
3192                 break;
3193         case AddRouteDialog::MixedTrack:
3194                 session_add_mixed_track (input_chan, output_chan, route_group, count, name_template, instrument);
3195                 break;
3196         case AddRouteDialog::AudioBus:
3197                 session_add_audio_bus (input_chan.n_audio(), output_chan.n_audio(), route_group, count, name_template);
3198                 break;
3199         }
3200
3201         /* idle connection will end at scope end */
3202 }
3203
3204 XMLNode*
3205 ARDOUR_UI::mixer_settings () const
3206 {
3207         XMLNode* node = 0;
3208
3209         if (_session) {
3210                 node = _session->instant_xml(X_("Mixer"));
3211         } else {
3212                 node = Config->instant_xml(X_("Mixer"));
3213         }
3214
3215         if (!node) {
3216                 node = new XMLNode (X_("Mixer"));
3217         }
3218
3219         return node;
3220 }
3221
3222 XMLNode*
3223 ARDOUR_UI::editor_settings () const
3224 {
3225         XMLNode* node = 0;
3226
3227         if (_session) {
3228                 node = _session->instant_xml(X_("Editor"));
3229         } else {
3230                 node = Config->instant_xml(X_("Editor"));
3231         }
3232
3233         if (!node) {
3234                 if (getenv("ARDOUR_INSTANT_XML_PATH")) {
3235                         node = Config->instant_xml(getenv("ARDOUR_INSTANT_XML_PATH"));
3236                 }
3237         }
3238
3239         if (!node) {
3240                 node = new XMLNode (X_("Editor"));
3241         }
3242
3243         return node;
3244 }
3245
3246 XMLNode*
3247 ARDOUR_UI::keyboard_settings () const
3248 {
3249         XMLNode* node = 0;
3250
3251         node = Config->extra_xml(X_("Keyboard"));
3252
3253         if (!node) {
3254                 node = new XMLNode (X_("Keyboard"));
3255         }
3256
3257         return node;
3258 }
3259
3260 void
3261 ARDOUR_UI::create_xrun_marker (framepos_t where)
3262 {
3263         editor->mouse_add_new_marker (where, false, true);
3264 }
3265
3266 void
3267 ARDOUR_UI::halt_on_xrun_message ()
3268 {
3269         MessageDialog msg (*editor,
3270                            _("Recording was stopped because your system could not keep up."));
3271         msg.run ();
3272 }
3273
3274 void
3275 ARDOUR_UI::xrun_handler (framepos_t where)
3276 {
3277         if (!_session) {
3278                 return;
3279         }
3280
3281         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::xrun_handler, where)
3282
3283         if (_session && Config->get_create_xrun_marker() && _session->actively_recording()) {
3284                 create_xrun_marker(where);
3285         }
3286
3287         if (_session && Config->get_stop_recording_on_xrun() && _session->actively_recording()) {
3288                 halt_on_xrun_message ();
3289         }
3290 }
3291
3292 void
3293 ARDOUR_UI::disk_overrun_handler ()
3294 {
3295         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::disk_overrun_handler)
3296
3297         if (!have_disk_speed_dialog_displayed) {
3298                 have_disk_speed_dialog_displayed = true;
3299                 MessageDialog* msg = new MessageDialog (*editor, string_compose (_("\
3300 The disk system on your computer\n\
3301 was not able to keep up with %1.\n\
3302 \n\
3303 Specifically, it failed to write data to disk\n\
3304 quickly enough to keep up with recording.\n"), PROGRAM_NAME));
3305                 msg->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
3306                 msg->show ();
3307         }
3308 }
3309
3310 void
3311 ARDOUR_UI::disk_underrun_handler ()
3312 {
3313         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::disk_underrun_handler)
3314
3315         if (!have_disk_speed_dialog_displayed) {
3316                 have_disk_speed_dialog_displayed = true;
3317                 MessageDialog* msg = new MessageDialog (
3318                         *editor, string_compose (_("The disk system on your computer\n\
3319 was not able to keep up with %1.\n\
3320 \n\
3321 Specifically, it failed to read data from disk\n\
3322 quickly enough to keep up with playback.\n"), PROGRAM_NAME));
3323                 msg->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
3324                 msg->show ();
3325         }
3326 }
3327
3328 void
3329 ARDOUR_UI::disk_speed_dialog_gone (int /*ignored_response*/, MessageDialog* msg)
3330 {
3331         have_disk_speed_dialog_displayed = false;
3332         delete msg;
3333 }
3334
3335 void
3336 ARDOUR_UI::session_dialog (std::string msg)
3337 {
3338         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::session_dialog, msg)
3339
3340         MessageDialog* d;
3341
3342         if (editor) {
3343                 d = new MessageDialog (*editor, msg, false, MESSAGE_INFO, BUTTONS_OK, true);
3344         } else {
3345                 d = new MessageDialog (msg, false, MESSAGE_INFO, BUTTONS_OK, true);
3346         }
3347
3348         d->show_all ();
3349         d->run ();
3350         delete d;
3351 }
3352
3353 int
3354 ARDOUR_UI::pending_state_dialog ()
3355 {
3356         HBox* hbox = new HBox();
3357         Image* image = new Image (Stock::DIALOG_QUESTION, ICON_SIZE_DIALOG);
3358         ArdourDialog dialog (_("Crash Recovery"), true);
3359         Label  message (string_compose (_("\
3360 This session appears to have been in\n\
3361 middle of recording when ardour or\n\
3362 the computer was shutdown.\n\
3363 \n\
3364 %1 can recover any captured audio for\n\
3365 you, or it can ignore it. Please decide\n\
3366 what you would like to do.\n"), PROGRAM_NAME));
3367         image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
3368         hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
3369         hbox->pack_end (message, PACK_EXPAND_PADDING, 12);
3370         dialog.get_vbox()->pack_start(*hbox, PACK_EXPAND_PADDING, 6);
3371         dialog.add_button (_("Ignore crash data"), RESPONSE_REJECT);
3372         dialog.add_button (_("Recover from crash"), RESPONSE_ACCEPT);
3373         dialog.set_default_response (RESPONSE_ACCEPT);
3374         dialog.set_position (WIN_POS_CENTER);
3375         message.show();
3376         image->show();
3377         hbox->show();
3378
3379         switch (dialog.run ()) {
3380         case RESPONSE_ACCEPT:
3381                 return 1;
3382         default:
3383                 return 0;
3384         }
3385 }
3386
3387 int
3388 ARDOUR_UI::sr_mismatch_dialog (framecnt_t desired, framecnt_t actual)
3389 {
3390         HBox* hbox = new HBox();
3391         Image* image = new Image (Stock::DIALOG_QUESTION, ICON_SIZE_DIALOG);
3392         ArdourDialog dialog (_("Sample Rate Mismatch"), true);
3393         Label  message (string_compose (_("\
3394 This session was created with a sample rate of %1 Hz, but\n\
3395 %2 is currently running at %3 Hz.  If you load this session,\n\
3396 audio may be played at the wrong sample rate.\n"), desired, PROGRAM_NAME, actual));
3397
3398         image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
3399         hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
3400         hbox->pack_end (message, PACK_EXPAND_PADDING, 12);
3401         dialog.get_vbox()->pack_start(*hbox, PACK_EXPAND_PADDING, 6);
3402         dialog.add_button (_("Do not load session"), RESPONSE_REJECT);
3403         dialog.add_button (_("Load session anyway"), RESPONSE_ACCEPT);
3404         dialog.set_default_response (RESPONSE_ACCEPT);
3405         dialog.set_position (WIN_POS_CENTER);
3406         message.show();
3407         image->show();
3408         hbox->show();
3409
3410         switch (dialog.run ()) {
3411         case RESPONSE_ACCEPT:
3412                 return 0;
3413         default:
3414                 return 1;
3415         }
3416 }
3417
3418
3419 void
3420 ARDOUR_UI::disconnect_from_jack ()
3421 {
3422         if (engine) {
3423                 if (engine->disconnect_from_jack ()) {
3424                         MessageDialog msg (*editor, _("Could not disconnect from JACK"));
3425                         msg.run ();
3426                 }
3427
3428                 update_sample_rate (0);
3429         }
3430 }
3431
3432 void
3433 ARDOUR_UI::reconnect_to_jack ()
3434 {
3435         if (engine) {
3436                 if (engine->reconnect_to_jack ()) {
3437                         MessageDialog msg (*editor,  _("Could not reconnect to JACK"));
3438                         msg.run ();
3439                 }
3440
3441                 update_sample_rate (0);
3442         }
3443 }
3444
3445 void
3446 ARDOUR_UI::use_config ()
3447 {
3448         XMLNode* node = Config->extra_xml (X_("TransportControllables"));
3449         if (node) {
3450                 set_transport_controllable_state (*node);
3451         }
3452 }
3453
3454 void
3455 ARDOUR_UI::update_transport_clocks (framepos_t pos)
3456 {
3457         if (Config->get_primary_clock_delta_edit_cursor()) {
3458                 primary_clock->set (pos, false, editor->get_preferred_edit_position());
3459         } else {
3460                 primary_clock->set (pos);
3461         }
3462
3463         if (Config->get_secondary_clock_delta_edit_cursor()) {
3464                 secondary_clock->set (pos, false, editor->get_preferred_edit_position());
3465         } else {
3466                 secondary_clock->set (pos);
3467         }
3468
3469         if (big_clock_window->get()) {
3470                 big_clock->set (pos);
3471         }
3472 }
3473
3474
3475 void
3476 ARDOUR_UI::step_edit_status_change (bool yn)
3477 {
3478         // XXX should really store pre-step edit status of things
3479         // we make insensitive
3480
3481         if (yn) {
3482                 rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
3483                 rec_button.set_sensitive (false);
3484         } else {
3485                 rec_button.unset_active_state ();;
3486                 rec_button.set_sensitive (true);
3487         }
3488 }
3489
3490 void
3491 ARDOUR_UI::record_state_changed ()
3492 {
3493         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::record_state_changed);
3494
3495         if (!_session || !big_clock_window->get()) {
3496                 /* why bother - the clock isn't visible */
3497                 return;
3498         }
3499
3500         if (_session->record_status () == Session::Recording && _session->have_rec_enabled_track ()) {
3501                 big_clock->set_active (true);
3502         } else {
3503                 big_clock->set_active (false);
3504         }
3505 }
3506
3507 bool
3508 ARDOUR_UI::first_idle ()
3509 {
3510         if (_session) {
3511                 _session->allow_auto_play (true);
3512         }
3513
3514         if (editor) {
3515                 editor->first_idle();
3516         }
3517
3518         Keyboard::set_can_save_keybindings (true);
3519         return false;
3520 }
3521
3522 void
3523 ARDOUR_UI::store_clock_modes ()
3524 {
3525         XMLNode* node = new XMLNode(X_("ClockModes"));
3526
3527         for (vector<AudioClock*>::iterator x = AudioClock::clocks.begin(); x != AudioClock::clocks.end(); ++x) {
3528                 XMLNode* child = new XMLNode (X_("Clock"));
3529
3530                 child->add_property (X_("name"), (*x)->name());
3531                 child->add_property (X_("mode"), enum_2_string ((*x)->mode()));
3532                 child->add_property (X_("on"), ((*x)->off() ? X_("no") : X_("yes")));
3533
3534                 node->add_child_nocopy (*child);
3535         }
3536
3537         _session->add_extra_xml (*node);
3538         _session->set_dirty ();
3539 }
3540
3541 ARDOUR_UI::TransportControllable::TransportControllable (std::string name, ARDOUR_UI& u, ToggleType tp)
3542         : Controllable (name), ui (u), type(tp)
3543 {
3544
3545 }
3546
3547 void
3548 ARDOUR_UI::TransportControllable::set_value (double val)
3549 {
3550         if (val < 0.5) {
3551                 /* do nothing: these are radio-style actions */
3552                 return;
3553         }
3554
3555         const char *action = 0;
3556
3557         switch (type) {
3558         case Roll:
3559                 action = X_("Roll");
3560                 break;
3561         case Stop:
3562                 action = X_("Stop");
3563                 break;
3564         case GotoStart:
3565                 action = X_("GotoStart");
3566                 break;
3567         case GotoEnd:
3568                 action = X_("GotoEnd");
3569                 break;
3570         case AutoLoop:
3571                 action = X_("Loop");
3572                 break;
3573         case PlaySelection:
3574                 action = X_("PlaySelection");
3575                 break;
3576         case RecordEnable:
3577                 action = X_("Record");
3578                 break;
3579         default:
3580                 break;
3581         }
3582
3583         if (action == 0) {
3584                 return;
3585         }
3586
3587         Glib::RefPtr<Action> act = ActionManager::get_action ("Transport", action);
3588
3589         if (act) {
3590                 act->activate ();
3591         }
3592 }
3593
3594 double
3595 ARDOUR_UI::TransportControllable::get_value (void) const
3596 {
3597         float val = 0.0;
3598
3599         switch (type) {
3600         case Roll:
3601                 break;
3602         case Stop:
3603                 break;
3604         case GotoStart:
3605                 break;
3606         case GotoEnd:
3607                 break;
3608         case AutoLoop:
3609                 break;
3610         case PlaySelection:
3611                 break;
3612         case RecordEnable:
3613                 break;
3614         default:
3615                 break;
3616         }
3617
3618         return val;
3619 }
3620
3621 void
3622 ARDOUR_UI::setup_profile ()
3623 {
3624         if (gdk_screen_width() < 1200 || getenv ("ARDOUR_NARROW_SCREEN")) {
3625                 Profile->set_small_screen ();
3626         }
3627
3628         if (getenv ("ARDOUR_SAE")) {
3629                 Profile->set_sae ();
3630                 Profile->set_single_package ();
3631         }
3632 }
3633
3634 void
3635 ARDOUR_UI::toggle_translations ()
3636 {
3637         using namespace Glib;
3638
3639         RefPtr<Action> act = ActionManager::get_action (X_("Main"), X_("EnableTranslation"));
3640         if (act) {
3641                 RefPtr<ToggleAction> ract = RefPtr<ToggleAction>::cast_dynamic (act);
3642                 if (ract) {
3643
3644                         string i18n_killer = ARDOUR::translation_kill_path();
3645
3646                         bool already_enabled = !ARDOUR::translations_are_disabled ();
3647
3648                         if (ract->get_active ()) {
3649                                 /* we don't care about errors */
3650                                 int fd = ::open (i18n_killer.c_str(), O_RDONLY|O_CREAT, 0644);
3651                                 close (fd);
3652                         } else {
3653                                 /* we don't care about errors */
3654                                 unlink (i18n_killer.c_str());
3655                         }
3656
3657                         if (already_enabled != ract->get_active()) {
3658                                 MessageDialog win (already_enabled ? _("Translations disabled") : _("Translations enabled"),
3659                                                    false,
3660                                                    Gtk::MESSAGE_WARNING,
3661                                                    Gtk::BUTTONS_OK);
3662                                 win.set_secondary_text (string_compose (_("You must restart %1 for this to take effect."), PROGRAM_NAME));
3663                                 win.set_position (Gtk::WIN_POS_CENTER);
3664                                 win.present ();
3665                                 win.run ();
3666                         }
3667                 }
3668         }
3669 }
3670
3671 /** Add a window proxy to our list, so that its state will be saved.
3672  *  This call also causes the window to be created and opened if its
3673  *  state was saved as `visible'.
3674  */
3675 void
3676 ARDOUR_UI::add_window_proxy (WindowProxyBase* p)
3677 {
3678         _window_proxies.push_back (p);
3679         p->maybe_show ();
3680 }
3681
3682 /** Remove a window proxy from our list.  Must be called if a WindowProxy
3683  *  is deleted, to prevent hanging pointers.
3684  */
3685 void
3686 ARDOUR_UI::remove_window_proxy (WindowProxyBase* p)
3687 {
3688         _window_proxies.remove (p);
3689 }
3690
3691 int
3692 ARDOUR_UI::missing_file (Session*s, std::string str, DataType type)
3693 {
3694         MissingFileDialog dialog (s, str, type);
3695
3696         dialog.show ();
3697         dialog.present ();
3698
3699         int result = dialog.run ();
3700         dialog.hide ();
3701
3702         switch (result) {
3703         case RESPONSE_OK:
3704                 break;
3705         default:
3706                 return 1; // quit entire session load
3707         }
3708
3709         result = dialog.get_action ();
3710
3711         return result;
3712 }
3713
3714 int
3715 ARDOUR_UI::ambiguous_file (std::string file, std::string /*path*/, std::vector<std::string> hits)
3716 {
3717         AmbiguousFileDialog dialog (file, hits);
3718
3719         dialog.show ();
3720         dialog.present ();
3721
3722         dialog.run ();
3723         return dialog.get_which ();
3724 }
3725
3726 /** Allocate our thread-local buffers */
3727 void
3728 ARDOUR_UI::get_process_buffers ()
3729 {
3730         _process_thread->get_buffers ();
3731 }
3732
3733 /** Drop our thread-local buffers */
3734 void
3735 ARDOUR_UI::drop_process_buffers ()
3736 {
3737         _process_thread->drop_buffers ();
3738 }
3739
3740 void
3741 ARDOUR_UI::feedback_detected ()
3742 {
3743         _feedback_exists = true;
3744 }
3745
3746 void
3747 ARDOUR_UI::successful_graph_sort ()
3748 {
3749         _feedback_exists = false;
3750 }
3751
3752 void
3753 ARDOUR_UI::midi_panic ()
3754 {
3755         if (_session) {
3756                 _session->midi_panic();
3757         }
3758 }