gtk2_ardour/ardour_ui.cc

   1 /*
   2     Copyright (C) 1999-2013 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 <algorithm>
  25 #include <cmath>
  26 #include <iostream>
  27 #include <cerrno>
  28 #include <fstream>
  29
  30 #include <stdint.h>
  31 #include <fcntl.h>
  32 #include <signal.h>
  33 #include <unistd.h>
  34 #include <time.h>
  35
  36 #include <sys/resource.h>
  37 #include <sys/types.h>
  38 #include <sys/sysctl.h>
  39
  40 #include <gtkmm/messagedialog.h>
  41 #include <gtkmm/accelmap.h>
  42
  43 #include "pbd/error.h"
  44 #include "pbd/basename.h"
  45 #include "pbd/compose.h"
  46 #include "pbd/failed_constructor.h"
  47 #include "pbd/enumwriter.h"
  48 #include "pbd/memento_command.h"
  49 #include "pbd/openuri.h"
  50 #include "pbd/file_utils.h"
  51
  52 #include "gtkmm2ext/application.h"
  53 #include "gtkmm2ext/bindings.h"
  54 #include "gtkmm2ext/gtk_ui.h"
  55 #include "gtkmm2ext/utils.h"
  56 #include "gtkmm2ext/click_box.h"
  57 #include "gtkmm2ext/fastmeter.h"
  58 #include "gtkmm2ext/popup.h"
  59 #include "gtkmm2ext/window_title.h"
  60
  61 #include "midi++/manager.h"
  62
  63 #include "ardour/ardour.h"
  64 #include "ardour/audio_backend.h"
  65 #include "ardour/audioengine.h"
  66 #include "ardour/audiofilesource.h"
  67 #include "ardour/automation_watch.h"
  68 #include "ardour/diskstream.h"
  69 #include "ardour/filename_extensions.h"
  70 #include "ardour/filesystem_paths.h"
  71 #include "ardour/port.h"
  72 #include "ardour/process_thread.h"
  73 #include "ardour/profile.h"
  74 #include "ardour/recent_sessions.h"
  75 #include "ardour/session_directory.h"
  76 #include "ardour/session_route.h"
  77 #include "ardour/session_state_utils.h"
  78 #include "ardour/session_utils.h"
  79 #include "ardour/slave.h"
  80
  81 #include "timecode/time.h"
  82
  83 typedef uint64_t microseconds_t;
  84
  85 #include "about.h"
  86 #include "actions.h"
  87 #include "add_route_dialog.h"
  88 #include "ambiguous_file_dialog.h"
  89 #include "ardour_ui.h"
  90 #include "audio_clock.h"
  91 #include "big_clock_window.h"
  92 #include "bundle_manager.h"
  93 #include "engine_dialog.h"
  94 #include "gain_meter.h"
  95 #include "global_port_matrix.h"
  96 #include "gui_object.h"
  97 #include "gui_thread.h"
  98 #include "keyboard.h"
  99 #include "keyeditor.h"
 100 #include "location_ui.h"
 101 #include "main_clock.h"
 102 #include "missing_file_dialog.h"
 103 #include "missing_plugin_dialog.h"
 104 #include "mixer_ui.h"
 105 #include "mouse_cursors.h"
 106 #include "opts.h"
 107 #include "pingback.h"
 108 #include "processor_box.h"
 109 #include "prompter.h"
 110 #include "public_editor.h"
 111 #include "rc_option_editor.h"
 112 #include "route_time_axis.h"
 113 #include "route_params_ui.h"
 114 #include "session_metadata_dialog.h"
 115 #include "session_option_editor.h"
 116 #include "shuttle_control.h"
 117 #include "speaker_dialog.h"
 118 #include "splash.h"
 119 #include "startup.h"
 120 #include "theme_manager.h"
 121 #include "time_axis_view_item.h"
 122 #include "utils.h"
 123 #include "video_server_dialog.h"
 124 #include "add_video_dialog.h"
 125 #include "transcode_video_dialog.h"
 126 #include "system_exec.h"
 127
 128 #include "i18n.h"
 129
 130 using namespace ARDOUR;
 131 using namespace PBD;
 132 using namespace Gtkmm2ext;
 133 using namespace Gtk;
 134 using namespace std;
 135
 136 ARDOUR_UI *ARDOUR_UI::theArdourUI = 0;
 137 UIConfiguration *ARDOUR_UI::ui_config = 0;
 138
 139 sigc::signal<void,bool> ARDOUR_UI::Blink;
 140 sigc::signal<void>      ARDOUR_UI::RapidScreenUpdate;
 141 sigc::signal<void>      ARDOUR_UI::SuperRapidScreenUpdate;
 142 sigc::signal<void, framepos_t, bool, framepos_t> ARDOUR_UI::Clock;
 143 sigc::signal<void>      ARDOUR_UI::CloseAllDialogs;
 144
 145 ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
 146
 147         : Gtkmm2ext::UI (PROGRAM_NAME, argcp, argvp)
 148
 149         , gui_object_state (new GUIObjectState)
 150
 151         , primary_clock (new MainClock (X_("primary"), false, X_("transport"), true, true, true, false, true))
 152         , secondary_clock (new MainClock (X_("secondary"), false, X_("secondary"), true, true, false, false, true))
 153
 154           /* big clock */
 155
 156         , big_clock (new AudioClock (X_("bigclock"), false, "big", true, true, false, false))
 157         , video_timeline(0)
 158
 159           /* start of private members */
 160
 161         , _startup (0)
 162         , engine (0)
 163         , nsm (0)
 164         , _was_dirty (false)
 165         , _mixer_on_top (false)
 166
 167           /* transport */
 168
 169         , roll_controllable (new TransportControllable ("transport roll", *this, TransportControllable::Roll))
 170         , stop_controllable (new TransportControllable ("transport stop", *this, TransportControllable::Stop))
 171         , goto_start_controllable (new TransportControllable ("transport goto start", *this, TransportControllable::GotoStart))
 172         , goto_end_controllable (new TransportControllable ("transport goto end", *this, TransportControllable::GotoEnd))
 173         , auto_loop_controllable (new TransportControllable ("transport auto loop", *this, TransportControllable::AutoLoop))
 174         , play_selection_controllable (new TransportControllable ("transport play selection", *this, TransportControllable::PlaySelection))
 175         , rec_controllable (new TransportControllable ("transport rec-enable", *this, TransportControllable::RecordEnable))
 176
 177         , auto_return_button (ArdourButton::led_default_elements)
 178         , follow_edits_button (ArdourButton::led_default_elements)
 179         , auto_input_button (ArdourButton::led_default_elements)
 180
 181         , auditioning_alert_button (_("audition"))
 182         , solo_alert_button (_("solo"))
 183         , feedback_alert_button (_("feedback"))
 184
 185         , speaker_config_window (X_("speaker-config"), _("Speaker Configuration"))
 186         , theme_manager (X_("theme-manager"), _("Theme Manager"))
 187         , key_editor (X_("key-editor"), _("Key Bindings"))
 188         , rc_option_editor (X_("rc-options-editor"), _("Preferences"))
 189         , add_route_dialog (X_("add-routes"), _("Add Tracks/Busses"))
 190         , about (X_("about"), _("About"))
 191         , location_ui (X_("locations"), _("Locations"))
 192         , route_params (X_("inspector"), _("Tracks and Busses"))
 193         , session_option_editor (X_("session-options-editor"), _("Properties"), boost::bind (&ARDOUR_UI::create_session_option_editor, this))
 194         , add_video_dialog (X_("add-video"), _("Add Tracks/Busses"), boost::bind (&ARDOUR_UI::create_add_video_dialog, this))
 195         , bundle_manager (X_("bundle-manager"), _("Bundle Manager"), boost::bind (&ARDOUR_UI::create_bundle_manager, this))
 196         , big_clock_window (X_("big-clock"), _("Big Clock"), boost::bind (&ARDOUR_UI::create_big_clock_window, this))
 197         , audio_port_matrix (X_("audio-connection-manager"), _("Audio Connections"), boost::bind (&ARDOUR_UI::create_global_port_matrix, this, ARDOUR::DataType::AUDIO))
 198         , midi_port_matrix (X_("midi-connection-manager"), _("MIDI Connections"), boost::bind (&ARDOUR_UI::create_global_port_matrix, this, ARDOUR::DataType::MIDI))
 199
 200         , error_log_button (_("Errors"))
 201
 202         , _status_bar_visibility (X_("status-bar"))
 203         , _feedback_exists (false)
 204
 205 {
 206         Gtkmm2ext::init(localedir);
 207
 208         splash = 0;
 209
 210         if (theArdourUI == 0) {
 211                 theArdourUI = this;
 212         }
 213
 214         ui_config = new UIConfiguration();
 215
 216         editor = 0;
 217         mixer = 0;
 218         meterbridge = 0;
 219         editor = 0;
 220         engine = 0;
 221         _session_is_new = false;
 222         session_selector_window = 0;
 223         last_key_press_time = 0;
 224         video_server_process = 0;
 225         open_session_selector = 0;
 226         have_configure_timeout = false;
 227         have_disk_speed_dialog_displayed = false;
 228         session_loaded = false;
 229         ignore_dual_punch = false;
 230
 231         roll_button.set_controllable (roll_controllable);
 232         stop_button.set_controllable (stop_controllable);
 233         goto_start_button.set_controllable (goto_start_controllable);
 234         goto_end_button.set_controllable (goto_end_controllable);
 235         auto_loop_button.set_controllable (auto_loop_controllable);
 236         play_selection_button.set_controllable (play_selection_controllable);
 237         rec_button.set_controllable (rec_controllable);
 238
 239         roll_button.set_name ("transport button");
 240         stop_button.set_name ("transport button");
 241         goto_start_button.set_name ("transport button");
 242         goto_end_button.set_name ("transport button");
 243         auto_loop_button.set_name ("transport button");
 244         play_selection_button.set_name ("transport button");
 245         rec_button.set_name ("transport recenable button");
 246         midi_panic_button.set_name ("transport button");
 247
 248         goto_start_button.set_tweaks (ArdourButton::ShowClick);
 249         goto_end_button.set_tweaks (ArdourButton::ShowClick);
 250         midi_panic_button.set_tweaks (ArdourButton::ShowClick);
 251
 252         last_configure_time= 0;
 253         last_peak_grab = 0;
 254
 255         ARDOUR::Diskstream::DiskOverrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_overrun_handler, this), gui_context());
 256         ARDOUR::Diskstream::DiskUnderrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_underrun_handler, this), gui_context());
 257
 258         ARDOUR::Session::VersionMismatch.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::session_format_mismatch, this, _1, _2), gui_context());
 259
 260         /* handle dialog requests */
 261
 262         ARDOUR::Session::Dialog.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::session_dialog, this, _1), gui_context());
 263
 264         /* handle pending state with a dialog (PROBLEM: needs to return a value and thus cannot be x-thread) */
 265
 266         ARDOUR::Session::AskAboutPendingState.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::pending_state_dialog, this));
 267
 268         /* handle sr mismatch with a dialog (PROBLEM: needs to return a value and thus cannot be x-thread) */
 269
 270         ARDOUR::Session::AskAboutSampleRateMismatch.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::sr_mismatch_dialog, this, _1, _2));
 271
 272         /* handle requests to quit (coming from JACK session) */
 273
 274         ARDOUR::Session::Quit.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::finish, this), gui_context ());
 275
 276         /* tell the user about feedback */
 277
 278         ARDOUR::Session::FeedbackDetected.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::feedback_detected, this), gui_context ());
 279         ARDOUR::Session::SuccessfulGraphSort.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::successful_graph_sort, this), gui_context ());
 280
 281         /* handle requests to deal with missing files */
 282
 283         ARDOUR::Session::MissingFile.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::missing_file, this, _1, _2, _3));
 284
 285         /* and ambiguous files */
 286
 287         ARDOUR::FileSource::AmbiguousFileName.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::ambiguous_file, this, _1, _2, _3));
 288
 289         /* lets get this party started */
 290
 291         try {
 292                 if (ARDOUR::init (ARDOUR_COMMAND_LINE::use_vst, ARDOUR_COMMAND_LINE::try_hw_optimization, localedir)) {
 293                         throw failed_constructor ();
 294                 }
 295
 296                 setup_gtk_ardour_enums ();
 297                 setup_profile ();
 298
 299                 SessionEvent::create_per_thread_pool ("GUI", 512);
 300
 301         } catch (failed_constructor& err) {
 302                 error << string_compose (_("could not initialize %1."), PROGRAM_NAME) << endmsg;
 303                 // pass it on up
 304                 throw;
 305         }
 306
 307         /* we like keyboards */
 308
 309         keyboard = new ArdourKeyboard(*this);
 310
 311         XMLNode* node = ARDOUR_UI::instance()->keyboard_settings();
 312         if (node) {
 313                 keyboard->set_state (*node, Stateful::loading_state_version);
 314         }
 315
 316         /* we don't like certain modifiers */
 317         Bindings::set_ignored_state (GDK_LOCK_MASK|GDK_MOD2_MASK|GDK_MOD3_MASK);
 318
 319         reset_dpi();
 320
 321         TimeAxisViewItem::set_constant_heights ();
 322
 323         /* Set this up so that our window proxies can register actions */
 324
 325         ActionManager::init ();
 326
 327         /* The following must happen after ARDOUR::init() so that Config is set up */
 328
 329         const XMLNode* ui_xml = Config->extra_xml (X_("UI"));
 330
 331         if (ui_xml) {
 332                 theme_manager.set_state (*ui_xml);
 333                 key_editor.set_state (*ui_xml);
 334                 rc_option_editor.set_state (*ui_xml);
 335                 session_option_editor.set_state (*ui_xml);
 336                 speaker_config_window.set_state (*ui_xml);
 337                 about.set_state (*ui_xml);
 338                 add_route_dialog.set_state (*ui_xml);
 339                 add_video_dialog.set_state (*ui_xml);
 340                 route_params.set_state (*ui_xml);
 341                 bundle_manager.set_state (*ui_xml);
 342                 location_ui.set_state (*ui_xml);
 343                 big_clock_window.set_state (*ui_xml);
 344                 audio_port_matrix.set_state (*ui_xml);
 345                 midi_port_matrix.set_state (*ui_xml);
 346         }
 347
 348         WM::Manager::instance().register_window (&theme_manager);
 349         WM::Manager::instance().register_window (&key_editor);
 350         WM::Manager::instance().register_window (&rc_option_editor);
 351         WM::Manager::instance().register_window (&session_option_editor);
 352         WM::Manager::instance().register_window (&speaker_config_window);
 353         WM::Manager::instance().register_window (&about);
 354         WM::Manager::instance().register_window (&add_route_dialog);
 355         WM::Manager::instance().register_window (&add_video_dialog);
 356         WM::Manager::instance().register_window (&route_params);
 357         WM::Manager::instance().register_window (&bundle_manager);
 358         WM::Manager::instance().register_window (&location_ui);
 359         WM::Manager::instance().register_window (&big_clock_window);
 360         WM::Manager::instance().register_window (&audio_port_matrix);
 361         WM::Manager::instance().register_window (&midi_port_matrix);
 362
 363         /* We need to instantiate the theme manager because it loads our
 364            theme files. This should really change so that its window
 365            and its functionality are separate
 366         */
 367
 368         (void) theme_manager.get (true);
 369
 370         starting.connect (sigc::mem_fun(*this, &ARDOUR_UI::startup));
 371         stopping.connect (sigc::mem_fun(*this, &ARDOUR_UI::shutdown));
 372
 373         _process_thread = new ProcessThread ();
 374         _process_thread->init ();
 375
 376         DPIReset.connect (sigc::mem_fun (*this, &ARDOUR_UI::resize_text_widgets));
 377
 378         attach_to_engine ();
 379 }
 380
 381 GlobalPortMatrixWindow*
 382 ARDOUR_UI::create_global_port_matrix (ARDOUR::DataType type)
 383 {
 384         if (!_session) {
 385                 return 0;
 386         }
 387         return new GlobalPortMatrixWindow (_session, type);
 388 }
 389
 390 void
 391 ARDOUR_UI::attach_to_engine ()
 392 {
 393         engine = AudioEngine::instance();
 394
 395         engine->Stopped.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::engine_stopped, this), gui_context());
 396         engine->Running.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::engine_running, this), gui_context());
 397         engine->SampleRateChanged.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::update_sample_rate, this, _1), gui_context());
 398
 399         engine->Halted.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::engine_halted, this, _1, false));
 400         engine->BackendAvailable.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::post_engine, this));
 401
 402         ARDOUR::Port::set_connecting_blocked (ARDOUR_COMMAND_LINE::no_connect_ports);
 403
 404         /* if there is only one audio/midi backend, and it does not require setup, get our use of it underway
 405          * right here (we need to know the client name and potential session ID
 406          * to do this, which is why this is here, rather than in, say,
 407          * ARDOUR::init().
 408          */
 409
 410         if (!AudioEngine::instance()->setup_required()) {
 411                 const AudioBackendInfo* backend = AudioEngine::instance()->available_backends().front();
 412                 AudioEngine::instance()->set_backend (backend->name, ARDOUR_COMMAND_LINE::backend_client_name, ARDOUR_COMMAND_LINE::backend_session_uuid);
 413                 AudioEngine::instance()->start ();
 414         }
 415 }
 416
 417 void
 418 ARDOUR_UI::post_engine ()
 419 {
 420         /* Things to be done once we have a backend running in the AudioEngine
 421          */
 422
 423         ARDOUR::init_post_engine ();
 424
 425         _tooltips.enable();
 426
 427         ActionManager::load_menus ();
 428
 429         if (setup_windows ()) {
 430                 throw failed_constructor ();
 431         }
 432
 433         /* Do this after setup_windows (), as that's when the _status_bar_visibility is created */
 434         XMLNode* n = Config->extra_xml (X_("UI"));
 435         if (n) {
 436                 _status_bar_visibility.set_state (*n);
 437         }
 438
 439         check_memory_locking();
 440
 441         /* this is the first point at which all the keybindings are available */
 442
 443         if (ARDOUR_COMMAND_LINE::show_key_actions) {
 444                 vector<string> names;
 445                 vector<string> paths;
 446                 vector<string> tooltips;
 447                 vector<string> keys;
 448                 vector<AccelKey> bindings;
 449
 450                 ActionManager::get_all_actions (names, paths, tooltips, keys, bindings);
 451
 452                 vector<string>::iterator n;
 453                 vector<string>::iterator k;
 454                 for (n = names.begin(), k = keys.begin(); n != names.end(); ++n, ++k) {
 455                         cout << "Action: " << (*n) << " bound to " << (*k) << endl;
 456                 }
 457
 458                 exit (0);
 459         }
 460
 461         blink_timeout_tag = -1;
 462
 463         /* this being a GUI and all, we want peakfiles */
 464
 465         AudioFileSource::set_build_peakfiles (true);
 466         AudioFileSource::set_build_missing_peakfiles (true);
 467
 468         /* set default clock modes */
 469
 470         if (Profile->get_sae()) {
 471                 primary_clock->set_mode (AudioClock::BBT);
 472                 secondary_clock->set_mode (AudioClock::MinSec);
 473         }  else {
 474                 primary_clock->set_mode (AudioClock::Timecode);
 475                 secondary_clock->set_mode (AudioClock::BBT);
 476         }
 477
 478         /* start the time-of-day-clock */
 479
 480 #ifndef GTKOSX
 481         /* OS X provides a nearly-always visible wallclock, so don't be stupid */
 482         update_wall_clock ();
 483         Glib::signal_timeout().connect_seconds (sigc::mem_fun(*this, &ARDOUR_UI::update_wall_clock), 1);
 484 #endif
 485
 486         update_disk_space ();
 487         update_cpu_load ();
 488         update_sample_rate (engine->sample_rate());
 489         update_timecode_format ();
 490
 491         Config->ParameterChanged.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::parameter_changed, this, _1), gui_context());
 492         boost::function<void (string)> pc (boost::bind (&ARDOUR_UI::parameter_changed, this, _1));
 493         Config->map_parameters (pc);
 494
 495         /* now start and maybe save state */
 496
 497         if (do_engine_start () == 0) {
 498                 if (_session && _session_is_new) {
 499                         /* we need to retain initial visual
 500                            settings for a new session
 501                         */
 502                         _session->save_state ("");
 503                 }
 504         }
 505 }
 506
 507 ARDOUR_UI::~ARDOUR_UI ()
 508 {
 509         delete keyboard;
 510         delete editor;
 511         delete mixer;
 512         delete meterbridge;
 513
 514         stop_video_server();
 515 }
 516
 517 void
 518 ARDOUR_UI::pop_back_splash (Gtk::Window& win)
 519 {
 520         if (Splash::instance()) {
 521                 Splash::instance()->pop_back_for (win);
 522         }
 523 }
 524
 525 gint
 526 ARDOUR_UI::configure_timeout ()
 527 {
 528         if (last_configure_time == 0) {
 529                 /* no configure events yet */
 530                 return true;
 531         }
 532
 533         /* force a gap of 0.5 seconds since the last configure event
 534          */
 535
 536         if (get_microseconds() - last_configure_time < 500000) {
 537                 return true;
 538         } else {
 539                 have_configure_timeout = false;
 540                 save_ardour_state ();
 541                 return false;
 542         }
 543 }
 544
 545 gboolean
 546 ARDOUR_UI::configure_handler (GdkEventConfigure* /*conf*/)
 547 {
 548         if (have_configure_timeout) {
 549                 last_configure_time = get_microseconds();
 550         } else {
 551                 Glib::signal_timeout().connect (sigc::mem_fun(*this, &ARDOUR_UI::configure_timeout), 100);
 552                 have_configure_timeout = true;
 553         }
 554
 555         return FALSE;
 556 }
 557
 558 void
 559 ARDOUR_UI::set_transport_controllable_state (const XMLNode& node)
 560 {
 561         const XMLProperty* prop;
 562
 563         if ((prop = node.property ("roll")) != 0) {
 564                 roll_controllable->set_id (prop->value());
 565         }
 566         if ((prop = node.property ("stop")) != 0) {
 567                 stop_controllable->set_id (prop->value());
 568         }
 569         if ((prop = node.property ("goto-start")) != 0) {
 570                 goto_start_controllable->set_id (prop->value());
 571         }
 572         if ((prop = node.property ("goto-end")) != 0) {
 573                 goto_end_controllable->set_id (prop->value());
 574         }
 575         if ((prop = node.property ("auto-loop")) != 0) {
 576                 auto_loop_controllable->set_id (prop->value());
 577         }
 578         if ((prop = node.property ("play-selection")) != 0) {
 579                 play_selection_controllable->set_id (prop->value());
 580         }
 581         if ((prop = node.property ("rec")) != 0) {
 582                 rec_controllable->set_id (prop->value());
 583         }
 584         if ((prop = node.property ("shuttle")) != 0) {
 585                 shuttle_box->controllable()->set_id (prop->value());
 586         }
 587 }
 588
 589 XMLNode&
 590 ARDOUR_UI::get_transport_controllable_state ()
 591 {
 592         XMLNode* node = new XMLNode(X_("TransportControllables"));
 593         char buf[64];
 594
 595         roll_controllable->id().print (buf, sizeof (buf));
 596         node->add_property (X_("roll"), buf);
 597         stop_controllable->id().print (buf, sizeof (buf));
 598         node->add_property (X_("stop"), buf);
 599         goto_start_controllable->id().print (buf, sizeof (buf));
 600         node->add_property (X_("goto_start"), buf);
 601         goto_end_controllable->id().print (buf, sizeof (buf));
 602         node->add_property (X_("goto_end"), buf);
 603         auto_loop_controllable->id().print (buf, sizeof (buf));
 604         node->add_property (X_("auto_loop"), buf);
 605         play_selection_controllable->id().print (buf, sizeof (buf));
 606         node->add_property (X_("play_selection"), buf);
 607         rec_controllable->id().print (buf, sizeof (buf));
 608         node->add_property (X_("rec"), buf);
 609         shuttle_box->controllable()->id().print (buf, sizeof (buf));
 610         node->add_property (X_("shuttle"), buf);
 611
 612         return *node;
 613 }
 614
 615
 616 gint
 617 ARDOUR_UI::autosave_session ()
 618 {
 619         if (g_main_depth() > 1) {
 620                 /* inside a recursive main loop,
 621                    give up because we may not be able to
 622                    take a lock.
 623                 */
 624                 return 1;
 625         }
 626
 627         if (!Config->get_periodic_safety_backups()) {
 628                 return 1;
 629         }
 630
 631         if (_session) {
 632                 _session->maybe_write_autosave();
 633         }
 634
 635         return 1;
 636 }
 637
 638 void
 639 ARDOUR_UI::update_autosave ()
 640 {
 641         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::update_autosave)
 642
 643         if (_session && _session->dirty()) {
 644                 if (_autosave_connection.connected()) {
 645                         _autosave_connection.disconnect();
 646                 }
 647
 648                 _autosave_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &ARDOUR_UI::autosave_session),
 649                                 Config->get_periodic_safety_backup_interval() * 1000);
 650
 651         } else {
 652                 if (_autosave_connection.connected()) {
 653                         _autosave_connection.disconnect();
 654                 }
 655         }
 656 }
 657
 658 void
 659 ARDOUR_UI::check_announcements ()
 660 {
 661 #ifdef PHONE_HOME
 662         string _annc_filename;
 663
 664 #ifdef __APPLE__
 665         _annc_filename = PROGRAM_NAME "_announcements_osx_";
 666 #else
 667         _annc_filename = PROGRAM_NAME "_announcements_linux_";
 668 #endif
 669         _annc_filename.append (VERSIONSTRING);
 670
 671         std::string path = Glib::build_filename (user_config_directory(), _annc_filename);
 672         std::ifstream announce_file (path.c_str());
 673         if ( announce_file.fail() )
 674                 _announce_string = "";
 675         else {
 676                 std::stringstream oss;
 677                 oss << announce_file.rdbuf();
 678                 _announce_string = oss.str();
 679         }
 680
 681         pingback (VERSIONSTRING, path);
 682 #endif
 683 }
 684
 685 void
 686 ARDOUR_UI::startup ()
 687 {
 688         Application* app = Application::instance ();
 689         char *nsm_url;
 690
 691         app->ShouldQuit.connect (sigc::mem_fun (*this, &ARDOUR_UI::queue_finish));
 692         app->ShouldLoad.connect (sigc::mem_fun (*this, &ARDOUR_UI::idle_load));
 693
 694         if (ARDOUR_COMMAND_LINE::check_announcements) {
 695                 check_announcements ();
 696         }
 697
 698         app->ready ();
 699
 700         nsm_url = getenv ("NSM_URL");
 701
 702         if (nsm_url) {
 703                 nsm = new NSM_Client;
 704                 if (!nsm->init (nsm_url)) {
 705                         nsm->announce (PROGRAM_NAME, ":dirty:", "ardour3");
 706
 707                         unsigned int i = 0;
 708                         // wait for announce reply from nsm server
 709                         for ( i = 0; i < 5000; ++i) {
 710                                 nsm->check ();
 711                                 usleep (i);
 712                                 if (nsm->is_active())
 713                                         break;
 714                         }
 715                         // wait for open command from nsm server
 716                         for ( i = 0; i < 5000; ++i) {
 717                                 nsm->check ();
 718                                 usleep (1000);
 719                                 if (nsm->client_id ())
 720                                         break;
 721                         }
 722
 723                         if (_session && nsm) {
 724                                 _session->set_nsm_state( nsm->is_active() );
 725                         }
 726
 727                         // nsm requires these actions disabled
 728                         vector<string> action_names;
 729                         action_names.push_back("SaveAs");
 730                         action_names.push_back("Rename");
 731                         action_names.push_back("New");
 732                         action_names.push_back("Open");
 733                         action_names.push_back("Recent");
 734                         action_names.push_back("Close");
 735
 736                         for (vector<string>::const_iterator n = action_names.begin(); n != action_names.end(); ++n) {
 737                                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Main"), (*n).c_str());
 738                                 if (act) {
 739                                         act->set_sensitive (false);
 740                                 }
 741                         }
 742
 743                 }
 744                 else {
 745                         delete nsm;
 746                         nsm = 0;
 747                 }
 748         }
 749
 750         else if (get_session_parameters (true, ARDOUR_COMMAND_LINE::new_session, ARDOUR_COMMAND_LINE::load_template)) {
 751                 exit (1);
 752         }
 753
 754         use_config ();
 755
 756         goto_editor_window ();
 757
 758         WM::Manager::instance().show_visible ();
 759
 760         /* We have to do this here since goto_editor_window() ends up calling show_all() on the
 761          * editor window, and we may want stuff to be hidden.
 762          */
 763         _status_bar_visibility.update ();
 764
 765         BootMessage (string_compose (_("%1 is ready for use"), PROGRAM_NAME));
 766 }
 767
 768 void
 769 ARDOUR_UI::no_memory_warning ()
 770 {
 771         XMLNode node (X_("no-memory-warning"));
 772         Config->add_instant_xml (node);
 773 }
 774
 775 void
 776 ARDOUR_UI::check_memory_locking ()
 777 {
 778 #ifdef __APPLE__
 779         /* OS X doesn't support mlockall(2), and so testing for memory locking capability there is pointless */
 780         return;
 781 #else // !__APPLE__
 782
 783         XMLNode* memory_warning_node = Config->instant_xml (X_("no-memory-warning"));
 784
 785         if (engine->is_realtime() && memory_warning_node == 0) {
 786
 787                 struct rlimit limits;
 788                 int64_t ram;
 789                 long pages, page_size;
 790 #ifdef __FreeBSD__
 791                 size_t pages_len=sizeof(pages);
 792                 if ((page_size = getpagesize()) < 0 ||
 793                                 sysctlbyname("hw.availpages", &pages, &pages_len, NULL, 0))
 794 #else
 795                 if ((page_size = sysconf (_SC_PAGESIZE)) < 0 ||(pages = sysconf (_SC_PHYS_PAGES)) < 0)
 796 #endif
 797                 {
 798                         ram = 0;
 799                 } else {
 800                         ram = (int64_t) pages * (int64_t) page_size;
 801                 }
 802
 803                 if (getrlimit (RLIMIT_MEMLOCK, &limits)) {
 804                         return;
 805                 }
 806
 807                 if (limits.rlim_cur != RLIM_INFINITY) {
 808
 809                         if (ram == 0 || ((double) limits.rlim_cur / ram) < 0.75) {
 810
 811                                 MessageDialog msg (
 812                                         string_compose (
 813                                                 _("WARNING: Your system has a limit for maximum amount of locked memory. "
 814                                                   "This might cause %1 to run out of memory before your system "
 815                                                   "runs out of memory. \n\n"
 816                                                   "You can view the memory limit with 'ulimit -l', "
 817                                                   "and it is normally controlled by %2"),
 818                                                 PROGRAM_NAME,
 819 #ifdef __FreeBSD__
 820                                                 X_("/etc/login.conf")
 821 #else
 822                                                 X_(" /etc/security/limits.conf")
 823 #endif
 824                                         ).c_str());
 825
 826                                 msg.set_default_response (RESPONSE_OK);
 827
 828                                 VBox* vbox = msg.get_vbox();
 829                                 HBox hbox;
 830                                 CheckButton cb (_("Do not show this window again"));
 831
 832                                 cb.signal_toggled().connect (sigc::mem_fun (*this, &ARDOUR_UI::no_memory_warning));
 833
 834                                 hbox.pack_start (cb, true, false);
 835                                 vbox->pack_start (hbox);
 836                                 cb.show();
 837                                 vbox->show();
 838                                 hbox.show ();
 839
 840                                 pop_back_splash (msg);
 841
 842                                 editor->ensure_float (msg);
 843                                 msg.run ();
 844                         }
 845                 }
 846         }
 847 #endif // !__APPLE__
 848 }
 849
 850
 851 void
 852 ARDOUR_UI::queue_finish ()
 853 {
 854         Glib::signal_idle().connect (mem_fun (*this, &ARDOUR_UI::idle_finish));
 855 }
 856
 857 bool
 858 ARDOUR_UI::idle_finish ()
 859 {
 860         finish ();
 861         return false; /* do not call again */
 862 }
 863
 864 void
 865 ARDOUR_UI::finish()
 866 {
 867         if (_session) {
 868                 ARDOUR_UI::instance()->video_timeline->sync_session_state();
 869
 870                 if (_session->dirty()) {
 871                         vector<string> actions;
 872                         actions.push_back (_("Don't quit"));
 873                         actions.push_back (_("Just quit"));
 874                         actions.push_back (_("Save and quit"));
 875                         switch (ask_about_saving_session(actions)) {
 876                         case -1:
 877                                 return;
 878                                 break;
 879                         case 1:
 880                                 /* use the default name */
 881                                 if (save_state_canfail ("")) {
 882                                         /* failed - don't quit */
 883                                         MessageDialog msg (*editor,
 884                                                            string_compose (_("\
 885 %1 was unable to save your session.\n\n\
 886 If you still wish to quit, please use the\n\n\
 887 \"Just quit\" option."), PROGRAM_NAME));
 888                                         pop_back_splash(msg);
 889                                         msg.run ();
 890                                         return;
 891                                 }
 892                                 break;
 893                         case 0:
 894                                 break;
 895                         }
 896                 }
 897
 898                 second_connection.disconnect ();
 899                 point_one_second_connection.disconnect ();
 900                 point_zero_something_second_connection.disconnect();
 901         }
 902
 903         delete ARDOUR_UI::instance()->video_timeline;
 904         ARDOUR_UI::instance()->video_timeline = NULL;
 905         stop_video_server();
 906
 907         /* Save state before deleting the session, as that causes some
 908            windows to be destroyed before their visible state can be
 909            saved.
 910         */
 911         save_ardour_state ();
 912
 913         close_all_dialogs ();
 914
 915         loading_message (string_compose (_("Please wait while %1 cleans up..."), PROGRAM_NAME));
 916
 917         if (_session) {
 918                 // _session->set_deletion_in_progress ();
 919                 _session->set_clean ();
 920                 _session->remove_pending_capture_state ();
 921                 delete _session;
 922                 _session = 0;
 923         }
 924
 925         engine->stop ();
 926         quit ();
 927 }
 928
 929 int
 930 ARDOUR_UI::ask_about_saving_session (const vector<string>& actions)
 931 {
 932         ArdourDialog window (_("Unsaved Session"));
 933         Gtk::HBox dhbox;  // the hbox for the image and text
 934         Gtk::Label  prompt_label;
 935         Gtk::Image* dimage = manage (new Gtk::Image(Stock::DIALOG_WARNING,  Gtk::ICON_SIZE_DIALOG));
 936
 937         string msg;
 938
 939         assert (actions.size() >= 3);
 940
 941         window.add_button (actions[0], RESPONSE_REJECT);
 942         window.add_button (actions[1], RESPONSE_APPLY);
 943         window.add_button (actions[2], RESPONSE_ACCEPT);
 944
 945         window.set_default_response (RESPONSE_ACCEPT);
 946
 947         Gtk::Button noquit_button (msg);
 948         noquit_button.set_name ("EditorGTKButton");
 949
 950         string prompt;
 951
 952         if (_session->snap_name() == _session->name()) {
 953                 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?"),
 954                                         _session->snap_name());
 955         } else {
 956                 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?"),
 957                                         _session->snap_name());
 958         }
 959
 960         prompt_label.set_text (prompt);
 961         prompt_label.set_name (X_("PrompterLabel"));
 962         prompt_label.set_alignment(ALIGN_LEFT, ALIGN_TOP);
 963
 964         dimage->set_alignment(ALIGN_CENTER, ALIGN_TOP);
 965         dhbox.set_homogeneous (false);
 966         dhbox.pack_start (*dimage, false, false, 5);
 967         dhbox.pack_start (prompt_label, true, false, 5);
 968         window.get_vbox()->pack_start (dhbox);
 969
 970         window.set_name (_("Prompter"));
 971         window.set_modal (true);
 972         window.set_resizable (false);
 973
 974         dhbox.show();
 975         prompt_label.show();
 976         dimage->show();
 977         window.show();
 978         window.set_keep_above (true);
 979         window.present ();
 980
 981         ResponseType r = (ResponseType) window.run();
 982
 983         window.hide ();
 984
 985         switch (r) {
 986         case RESPONSE_ACCEPT: // save and get out of here
 987                 return 1;
 988         case RESPONSE_APPLY:  // get out of here
 989                 return 0;
 990         default:
 991                 break;
 992         }
 993
 994         return -1;
 995 }
 996
 997
 998 gint
 999 ARDOUR_UI::every_second ()
1000 {
1001         update_cpu_load ();
1002         update_buffer_load ();
1003         update_disk_space ();
1004         update_timecode_format ();
1005
1006         if (nsm && nsm->is_active ()) {
1007                 nsm->check ();
1008
1009                 if (!_was_dirty && _session->dirty ()) {
1010                         nsm->is_dirty ();
1011                         _was_dirty = true;
1012                 }
1013                 else if (_was_dirty && !_session->dirty ()){
1014                         nsm->is_clean ();
1015                         _was_dirty = false;
1016                 }
1017         }
1018         return TRUE;
1019 }
1020
1021 gint
1022 ARDOUR_UI::every_point_one_seconds ()
1023 {
1024         shuttle_box->update_speed_display ();
1025         RapidScreenUpdate(); /* EMIT_SIGNAL */
1026         return TRUE;
1027 }
1028
1029 gint
1030 ARDOUR_UI::every_point_zero_something_seconds ()
1031 {
1032         // august 2007: actual update frequency: 25Hz (40ms), not 100Hz
1033
1034         SuperRapidScreenUpdate(); /* EMIT_SIGNAL */
1035         return TRUE;
1036 }
1037
1038 void
1039 ARDOUR_UI::update_sample_rate (framecnt_t)
1040 {
1041         char buf[64];
1042
1043         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::update_sample_rate, ignored)
1044
1045         if (!engine->connected()) {
1046
1047                 snprintf (buf, sizeof (buf), "%s", _("disconnected"));
1048
1049         } else {
1050
1051                 framecnt_t rate = engine->sample_rate();
1052
1053                 if (fmod (rate, 1000.0) != 0.0) {
1054                         snprintf (buf, sizeof (buf), _("JACK: <span foreground=\"green\">%.1f kHz / %4.1f ms</span>"),
1055                                   (float) rate / 1000.0f,
1056                                   (engine->usecs_per_cycle() / 1000.0f));
1057                 } else {
1058                         snprintf (buf, sizeof (buf), _("JACK: <span foreground=\"green\">%" PRId64 " kHz / %4.1f ms</span>"),
1059                                   rate/1000,
1060                                   (engine->usecs_per_cycle() * 1000.0f));
1061                 }
1062         }
1063
1064         sample_rate_label.set_markup (buf);
1065 }
1066
1067 void
1068 ARDOUR_UI::update_format ()
1069 {
1070         if (!_session) {
1071                 format_label.set_text ("");
1072                 return;
1073         }
1074
1075         stringstream s;
1076         s << _("File:") << X_(" <span foreground=\"green\">");
1077
1078         switch (_session->config.get_native_file_header_format ()) {
1079         case BWF:
1080                 s << _("BWF");
1081                 break;
1082         case WAVE:
1083                 s << _("WAV");
1084                 break;
1085         case WAVE64:
1086                 s << _("WAV64");
1087                 break;
1088         case CAF:
1089                 s << _("CAF");
1090                 break;
1091         case AIFF:
1092                 s << _("AIFF");
1093                 break;
1094         case iXML:
1095                 s << _("iXML");
1096                 break;
1097         case RF64:
1098                 s << _("RF64");
1099                 break;
1100         }
1101
1102         s << " ";
1103
1104         switch (_session->config.get_native_file_data_format ()) {
1105         case FormatFloat:
1106                 s << _("32-float");
1107                 break;
1108         case FormatInt24:
1109                 s << _("24-int");
1110                 break;
1111         case FormatInt16:
1112                 s << _("16-int");
1113                 break;
1114         }
1115
1116         s << X_("</span>");
1117
1118         format_label.set_markup (s.str ());
1119 }
1120
1121 void
1122 ARDOUR_UI::update_cpu_load ()
1123 {
1124         char buf[64];
1125
1126         /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
1127            should also be changed.
1128         */
1129
1130         float const c = engine->get_cpu_load ();
1131         snprintf (buf, sizeof (buf), _("DSP: <span foreground=\"%s\">%5.1f%%</span>"), c >= 90 ? X_("red") : X_("green"), c);
1132         cpu_load_label.set_markup (buf);
1133 }
1134
1135 void
1136 ARDOUR_UI::update_buffer_load ()
1137 {
1138         char buf[256];
1139
1140         uint32_t const playback = _session ? _session->playback_load () : 100;
1141         uint32_t const capture = _session ? _session->capture_load () : 100;
1142
1143         /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
1144            should also be changed.
1145         */
1146
1147         if (_session) {
1148                 snprintf (
1149                         buf, sizeof (buf),
1150                         _("Buffers: <span foreground=\"green\">p:</span><span foreground=\"%s\">%" PRIu32 "%%</span> "
1151                                    "<span foreground=\"green\">c:</span><span foreground=\"%s\">%" PRIu32 "%%</span>"),
1152                         playback <= 5 ? X_("red") : X_("green"),
1153                         playback,
1154                         capture <= 5 ? X_("red") : X_("green"),
1155                         capture
1156                         );
1157
1158                 buffer_load_label.set_markup (buf);
1159         } else {
1160                 buffer_load_label.set_text ("");
1161         }
1162 }
1163
1164 void
1165 ARDOUR_UI::count_recenabled_streams (Route& route)
1166 {
1167         Track* track = dynamic_cast<Track*>(&route);
1168         if (track && track->record_enabled()) {
1169                 rec_enabled_streams += track->n_inputs().n_total();
1170         }
1171 }
1172
1173 void
1174 ARDOUR_UI::update_disk_space()
1175 {
1176         if (_session == 0) {
1177                 return;
1178         }
1179
1180         boost::optional<framecnt_t> opt_frames = _session->available_capture_duration();
1181         char buf[64];
1182         framecnt_t fr = _session->frame_rate();
1183
1184         if (!opt_frames) {
1185                 /* Available space is unknown */
1186                 snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">Unknown</span>"));
1187         } else if (opt_frames.get_value_or (0) == max_framecnt) {
1188                 snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">24hrs+</span>"));
1189         } else {
1190                 rec_enabled_streams = 0;
1191                 _session->foreach_route (this, &ARDOUR_UI::count_recenabled_streams);
1192
1193                 framecnt_t frames = opt_frames.get_value_or (0);
1194
1195                 if (rec_enabled_streams) {
1196                         frames /= rec_enabled_streams;
1197                 }
1198
1199                 int hrs;
1200                 int mins;
1201                 int secs;
1202
1203                 hrs  = frames / (fr * 3600);
1204
1205                 if (hrs > 24) {
1206                         snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">&gt;24 hrs</span>"));
1207                 } else {
1208                         frames -= hrs * fr * 3600;
1209                         mins = frames / (fr * 60);
1210                         frames -= mins * fr * 60;
1211                         secs = frames / fr;
1212
1213                         bool const low = (hrs == 0 && mins <= 30);
1214
1215                         snprintf (
1216                                 buf, sizeof(buf),
1217                                 _("Disk: <span foreground=\"%s\">%02dh:%02dm:%02ds</span>"),
1218                                 low ? X_("red") : X_("green"),
1219                                 hrs, mins, secs
1220                                 );
1221                 }
1222         }
1223
1224         disk_space_label.set_markup (buf);
1225 }
1226
1227 void
1228 ARDOUR_UI::update_timecode_format ()
1229 {
1230         char buf[64];
1231
1232         if (_session) {
1233                 bool matching;
1234                 TimecodeSlave* tcslave;
1235                 SyncSource sync_src = Config->get_sync_source();
1236
1237                 if ((sync_src == LTC || sync_src == MTC) && (tcslave = dynamic_cast<TimecodeSlave*>(_session->slave())) != 0) {
1238                         matching = (tcslave->apparent_timecode_format() == _session->config.get_timecode_format());
1239                 } else {
1240                         matching = true;
1241                 }
1242
1243                 snprintf (buf, sizeof (buf), S_("Timecode|TC: <span foreground=\"%s\">%s</span>"),
1244                           matching ? X_("green") : X_("red"),
1245                           Timecode::timecode_format_name (_session->config.get_timecode_format()).c_str());
1246         } else {
1247                 snprintf (buf, sizeof (buf), "TC: n/a");
1248         }
1249
1250         timecode_format_label.set_markup (buf);
1251 }
1252
1253 gint
1254 ARDOUR_UI::update_wall_clock ()
1255 {
1256         time_t now;
1257         struct tm *tm_now;
1258         static int last_min = -1;
1259
1260         time (&now);
1261         tm_now = localtime (&now);
1262         if (last_min != tm_now->tm_min) {
1263                 char buf[16];
1264                 sprintf (buf, "%02d:%02d", tm_now->tm_hour, tm_now->tm_min);
1265                 wall_clock_label.set_text (buf);
1266                 last_min = tm_now->tm_min;
1267         }
1268
1269         return TRUE;
1270 }
1271
1272 void
1273 ARDOUR_UI::redisplay_recent_sessions ()
1274 {
1275         std::vector<std::string> session_directories;
1276         RecentSessionsSorter cmp;
1277
1278         recent_session_display.set_model (Glib::RefPtr<TreeModel>(0));
1279         recent_session_model->clear ();
1280
1281         ARDOUR::RecentSessions rs;
1282         ARDOUR::read_recent_sessions (rs);
1283
1284         if (rs.empty()) {
1285                 recent_session_display.set_model (recent_session_model);
1286                 return;
1287         }
1288
1289         // sort them alphabetically
1290         sort (rs.begin(), rs.end(), cmp);
1291
1292         for (ARDOUR::RecentSessions::iterator i = rs.begin(); i != rs.end(); ++i) {
1293                 session_directories.push_back ((*i).second);
1294         }
1295
1296         for (vector<std::string>::const_iterator i = session_directories.begin();
1297                         i != session_directories.end(); ++i)
1298         {
1299                 std::vector<std::string> state_file_paths;
1300
1301                 // now get available states for this session
1302
1303                 get_state_files_in_directory (*i, state_file_paths);
1304
1305                 vector<string*>* states;
1306                 vector<const gchar*> item;
1307                 string fullpath = *i;
1308
1309                 /* remove any trailing / */
1310
1311                 if (fullpath[fullpath.length() - 1] == '/') {
1312                         fullpath = fullpath.substr (0, fullpath.length() - 1);
1313                 }
1314
1315                 /* check whether session still exists */
1316                 if (!Glib::file_test(fullpath.c_str(), Glib::FILE_TEST_EXISTS)) {
1317                         /* session doesn't exist */
1318                         continue;
1319                 }
1320
1321                 /* now get available states for this session */
1322
1323                 if ((states = Session::possible_states (fullpath)) == 0) {
1324                         /* no state file? */
1325                         continue;
1326                 }
1327
1328                 std::vector<string> state_file_names(get_file_names_no_extension (state_file_paths));
1329
1330                 Gtk::TreeModel::Row row = *(recent_session_model->append());
1331
1332                 row[recent_session_columns.visible_name] = Glib::path_get_basename (fullpath);
1333                 row[recent_session_columns.fullpath] = fullpath;
1334                 row[recent_session_columns.tip] = Glib::Markup::escape_text (fullpath);
1335
1336                 if (state_file_names.size() > 1) {
1337
1338                         // add the children
1339
1340                         for (std::vector<std::string>::iterator i2 = state_file_names.begin();
1341                                         i2 != state_file_names.end(); ++i2)
1342                         {
1343
1344                                 Gtk::TreeModel::Row child_row = *(recent_session_model->append (row.children()));
1345
1346                                 child_row[recent_session_columns.visible_name] = *i2;
1347                                 child_row[recent_session_columns.fullpath] = fullpath;
1348                                 child_row[recent_session_columns.tip] = Glib::Markup::escape_text (fullpath);
1349                         }
1350                 }
1351         }
1352
1353         recent_session_display.set_tooltip_column(1); // recent_session_columns.tip
1354         recent_session_display.set_model (recent_session_model);
1355 }
1356
1357 void
1358 ARDOUR_UI::build_session_selector ()
1359 {
1360         session_selector_window = new ArdourDialog (_("Recent Sessions"));
1361
1362         Gtk::ScrolledWindow *scroller = manage (new Gtk::ScrolledWindow);
1363
1364         session_selector_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
1365         session_selector_window->add_button (Stock::OPEN, RESPONSE_ACCEPT);
1366         session_selector_window->set_default_response (RESPONSE_ACCEPT);
1367         recent_session_model = TreeStore::create (recent_session_columns);
1368         recent_session_display.set_model (recent_session_model);
1369         recent_session_display.append_column (_("Recent Sessions"), recent_session_columns.visible_name);
1370         recent_session_display.set_headers_visible (false);
1371         recent_session_display.get_selection()->set_mode (SELECTION_BROWSE);
1372         recent_session_display.signal_row_activated().connect (sigc::mem_fun (*this, &ARDOUR_UI::recent_session_row_activated));
1373
1374         scroller->add (recent_session_display);
1375         scroller->set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1376
1377         session_selector_window->set_name ("SessionSelectorWindow");
1378         session_selector_window->set_size_request (200, 400);
1379         session_selector_window->get_vbox()->pack_start (*scroller);
1380
1381         recent_session_display.show();
1382         scroller->show();
1383 }
1384
1385 void
1386 ARDOUR_UI::recent_session_row_activated (const TreePath& /*path*/, TreeViewColumn* /*col*/)
1387 {
1388         session_selector_window->response (RESPONSE_ACCEPT);
1389 }
1390
1391 void
1392 ARDOUR_UI::open_recent_session ()
1393 {
1394         bool can_return = (_session != 0);
1395
1396         if (session_selector_window == 0) {
1397                 build_session_selector ();
1398         }
1399
1400         redisplay_recent_sessions ();
1401
1402         while (true) {
1403
1404                 ResponseType r = (ResponseType) session_selector_window->run ();
1405
1406                 switch (r) {
1407                 case RESPONSE_ACCEPT:
1408                         break;
1409                 default:
1410                         if (can_return) {
1411                                 session_selector_window->hide();
1412                                 return;
1413                         } else {
1414                                 exit (1);
1415                         }
1416                 }
1417
1418                 if (recent_session_display.get_selection()->count_selected_rows() == 0) {
1419                         continue;
1420                 }
1421
1422                 session_selector_window->hide();
1423
1424                 Gtk::TreeModel::iterator i = recent_session_display.get_selection()->get_selected();
1425
1426                 if (i == recent_session_model->children().end()) {
1427                         return;
1428                 }
1429
1430                 std::string path = (*i)[recent_session_columns.fullpath];
1431                 std::string state = (*i)[recent_session_columns.visible_name];
1432
1433                 _session_is_new = false;
1434
1435                 if (load_session (path, state) == 0) {
1436                         break;
1437                 }
1438
1439                 can_return = false;
1440         }
1441 }
1442
1443 bool
1444 ARDOUR_UI::check_audioengine ()
1445 {
1446         if (engine) {
1447                 if (!engine->connected()) {
1448                         MessageDialog msg (string_compose (
1449                                                    _("%1 is not connected to JACK\n"
1450                                                      "You cannot open or close sessions in this condition"),
1451                                                    PROGRAM_NAME));
1452                         pop_back_splash (msg);
1453                         msg.run ();
1454                         return false;
1455                 }
1456                 return true;
1457         } else {
1458                 return false;
1459         }
1460 }
1461
1462 void
1463 ARDOUR_UI::open_session ()
1464 {
1465         if (!check_audioengine()) {
1466                 return;
1467
1468         }
1469
1470         /* popup selector window */
1471
1472         if (open_session_selector == 0) {
1473
1474                 /* ardour sessions are folders */
1475
1476                 open_session_selector = new Gtk::FileChooserDialog (_("Open Session"), FILE_CHOOSER_ACTION_OPEN);
1477                 open_session_selector->add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
1478                 open_session_selector->add_button (Gtk::Stock::OPEN, Gtk::RESPONSE_ACCEPT);
1479                 open_session_selector->set_default_response(Gtk::RESPONSE_ACCEPT);
1480
1481                 if (_session) {
1482                         string session_parent_dir = Glib::path_get_dirname(_session->path());
1483                         string::size_type last_dir_sep = session_parent_dir.rfind(G_DIR_SEPARATOR);
1484                         session_parent_dir = session_parent_dir.substr(0, last_dir_sep);
1485                         open_session_selector->set_current_folder(session_parent_dir);
1486                 } else {
1487                         open_session_selector->set_current_folder(Config->get_default_session_parent_dir());
1488                 }
1489
1490                 string default_session_folder = Config->get_default_session_parent_dir();
1491                 try {
1492                         /* add_shortcut_folder throws an exception if the folder being added already has a shortcut */
1493                         open_session_selector->add_shortcut_folder (default_session_folder);
1494                 }
1495                 catch (Glib::Error & e) {
1496                         std::cerr << "open_session_selector->add_shortcut_folder (" << default_session_folder << ") threw Glib::Error " << e.what() << std::endl;
1497                 }
1498
1499                 FileFilter session_filter;
1500                 session_filter.add_pattern ("*.ardour");
1501                 session_filter.set_name (string_compose (_("%1 sessions"), PROGRAM_NAME));
1502                 open_session_selector->add_filter (session_filter);
1503                 open_session_selector->set_filter (session_filter);
1504         }
1505
1506         int response = open_session_selector->run();
1507         open_session_selector->hide ();
1508
1509         switch (response) {
1510         case RESPONSE_ACCEPT:
1511                 break;
1512         default:
1513                 open_session_selector->hide();
1514                 return;
1515         }
1516
1517         open_session_selector->hide();
1518         string session_path = open_session_selector->get_filename();
1519         string path, name;
1520         bool isnew;
1521
1522         if (session_path.length() > 0) {
1523                 if (ARDOUR::find_session (session_path, path, name, isnew) == 0) {
1524                         _session_is_new = isnew;
1525                         load_session (path, name);
1526                 }
1527         }
1528 }
1529
1530
1531 void
1532 ARDOUR_UI::session_add_mixed_track (const ChanCount& input, const ChanCount& output, RouteGroup* route_group,
1533                                     uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
1534 {
1535         list<boost::shared_ptr<MidiTrack> > tracks;
1536
1537         if (_session == 0) {
1538                 warning << _("You cannot add a track without a session already loaded.") << endmsg;
1539                 return;
1540         }
1541
1542         try {
1543                 tracks = _session->new_midi_track (input, output, instrument, ARDOUR::Normal, route_group, how_many, name_template);
1544
1545                 if (tracks.size() != how_many) {
1546                         error << string_compose(P_("could not create %1 new mixed track", "could not create %1 new mixed tracks", how_many), how_many) << endmsg;
1547                 }
1548         }
1549
1550         catch (...) {
1551                 MessageDialog msg (*editor,
1552                                    string_compose (_("There are insufficient JACK ports available\n\
1553 to create a new track or bus.\n\
1554 You should save %1, exit and\n\
1555 restart JACK with more ports."), PROGRAM_NAME));
1556                 msg.run ();
1557         }
1558 }
1559
1560
1561 void
1562 ARDOUR_UI::session_add_midi_route (bool disk, RouteGroup* route_group, uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
1563 {
1564         ChanCount one_midi_channel;
1565         one_midi_channel.set (DataType::MIDI, 1);
1566
1567         if (disk) {
1568                 session_add_mixed_track (one_midi_channel, one_midi_channel, route_group, how_many, name_template, instrument);
1569         }
1570 }
1571
1572 void
1573 ARDOUR_UI::session_add_audio_route (
1574         bool track,
1575         int32_t input_channels,
1576         int32_t output_channels,
1577         ARDOUR::TrackMode mode,
1578         RouteGroup* route_group,
1579         uint32_t how_many,
1580         string const & name_template
1581         )
1582 {
1583         list<boost::shared_ptr<AudioTrack> > tracks;
1584         RouteList routes;
1585
1586         if (_session == 0) {
1587                 warning << _("You cannot add a track or bus without a session already loaded.") << endmsg;
1588                 return;
1589         }
1590
1591         try {
1592                 if (track) {
1593                         tracks = _session->new_audio_track (input_channels, output_channels, mode, route_group, how_many, name_template);
1594
1595                         if (tracks.size() != how_many) {
1596                                 error << string_compose (P_("could not create %1 new audio track", "could not create %1 new audio tracks", how_many), how_many)
1597                                       << endmsg;
1598                         }
1599
1600                 } else {
1601
1602                         routes = _session->new_audio_route (input_channels, output_channels, route_group, how_many, name_template);
1603
1604                         if (routes.size() != how_many) {
1605                                 error << string_compose (P_("could not create %1 new audio bus", "could not create %1 new audio busses", how_many), how_many)
1606                                       << endmsg;
1607                         }
1608                 }
1609         }
1610
1611         catch (...) {
1612                 MessageDialog msg (*editor,
1613                                    string_compose (_("There are insufficient JACK ports available\n\
1614 to create a new track or bus.\n\
1615 You should save %1, exit and\n\
1616 restart JACK with more ports."), PROGRAM_NAME));
1617                 pop_back_splash (msg);
1618                 msg.run ();
1619         }
1620 }
1621
1622 void
1623 ARDOUR_UI::transport_goto_start ()
1624 {
1625         if (_session) {
1626                 _session->goto_start();
1627
1628                 /* force displayed area in editor to start no matter
1629                    what "follow playhead" setting is.
1630                 */
1631
1632                 if (editor) {
1633                         editor->center_screen (_session->current_start_frame ());
1634                 }
1635         }
1636 }
1637
1638 void
1639 ARDOUR_UI::transport_goto_zero ()
1640 {
1641         if (_session) {
1642                 _session->request_locate (0);
1643
1644                 /* force displayed area in editor to start no matter
1645                    what "follow playhead" setting is.
1646                 */
1647
1648                 if (editor) {
1649                         editor->reset_x_origin (0);
1650                 }
1651         }
1652 }
1653
1654 void
1655 ARDOUR_UI::transport_goto_wallclock ()
1656 {
1657         if (_session && editor) {
1658
1659                 time_t now;
1660                 struct tm tmnow;
1661                 framepos_t frames;
1662
1663                 time (&now);
1664                 localtime_r (&now, &tmnow);
1665
1666                 frames = tmnow.tm_hour * (60 * 60 * _session->frame_rate());
1667                 frames += tmnow.tm_min * (60 * _session->frame_rate());
1668                 frames += tmnow.tm_sec * _session->frame_rate();
1669
1670                 _session->request_locate (frames, _session->transport_rolling ());
1671
1672                 /* force displayed area in editor to start no matter
1673                    what "follow playhead" setting is.
1674                 */
1675
1676                 if (editor) {
1677                         editor->center_screen (frames);
1678                 }
1679         }
1680 }
1681
1682 void
1683 ARDOUR_UI::transport_goto_end ()
1684 {
1685         if (_session) {
1686                 framepos_t const frame = _session->current_end_frame();
1687                 _session->request_locate (frame);
1688
1689                 /* force displayed area in editor to start no matter
1690                    what "follow playhead" setting is.
1691                 */
1692
1693                 if (editor) {
1694                         editor->center_screen (frame);
1695                 }
1696         }
1697 }
1698
1699 void
1700 ARDOUR_UI::transport_stop ()
1701 {
1702         if (!_session) {
1703                 return;
1704         }
1705
1706         if (_session->is_auditioning()) {
1707                 _session->cancel_audition ();
1708                 return;
1709         }
1710
1711         _session->request_stop (false, true);
1712 }
1713
1714 void
1715 ARDOUR_UI::transport_record (bool roll)
1716 {
1717
1718         if (_session) {
1719                 switch (_session->record_status()) {
1720                 case Session::Disabled:
1721                         if (_session->ntracks() == 0) {
1722                                 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."));
1723                                 msg.run ();
1724                                 return;
1725                         }
1726                         _session->maybe_enable_record ();
1727                         if (roll) {
1728                                 transport_roll ();
1729                         }
1730                         break;
1731                 case Session::Recording:
1732                         if (roll) {
1733                                 _session->request_stop();
1734                         } else {
1735                                 _session->disable_record (false, true);
1736                         }
1737                         break;
1738
1739                 case Session::Enabled:
1740                         _session->disable_record (false, true);
1741                 }
1742         }
1743 }
1744
1745 void
1746 ARDOUR_UI::transport_roll ()
1747 {
1748         if (!_session) {
1749                 return;
1750         }
1751
1752         if (_session->is_auditioning()) {
1753                 return;
1754         }
1755
1756 #if 0
1757         if (_session->config.get_external_sync()) {
1758                 switch (Config->get_sync_source()) {
1759                 case JACK:
1760                         break;
1761                 default:
1762                         /* transport controlled by the master */
1763                         return;
1764                 }
1765         }
1766 #endif
1767
1768         bool rolling = _session->transport_rolling();
1769
1770         if (_session->get_play_loop()) {
1771                 /* XXX it is not possible to just leave seamless loop and keep
1772                    playing at present (nov 4th 2009)
1773                 */
1774                 if (!Config->get_seamless_loop()) {
1775                         _session->request_play_loop (false, true);
1776                 }
1777         } else if (_session->get_play_range () && !Config->get_always_play_range()) {
1778                 /* stop playing a range if we currently are */
1779                 _session->request_play_range (0, true);
1780         }
1781
1782         if (!rolling) {
1783                 _session->request_transport_speed (1.0f);
1784         }
1785 }
1786
1787 bool
1788 ARDOUR_UI::get_smart_mode() const
1789 {
1790         return ( editor->get_smart_mode() );
1791 }
1792
1793
1794 void
1795 ARDOUR_UI::toggle_roll (bool with_abort, bool roll_out_of_bounded_mode)
1796 {
1797
1798         if (!_session) {
1799                 return;
1800         }
1801
1802         if (_session->is_auditioning()) {
1803                 _session->cancel_audition ();
1804                 return;
1805         }
1806
1807         if (_session->config.get_external_sync()) {
1808                 switch (Config->get_sync_source()) {
1809                 case JACK:
1810                         break;
1811                 default:
1812                         /* transport controlled by the master */
1813                         return;
1814                 }
1815         }
1816
1817         bool rolling = _session->transport_rolling();
1818         bool affect_transport = true;
1819
1820         if (rolling && roll_out_of_bounded_mode) {
1821                 /* drop out of loop/range playback but leave transport rolling */
1822                 if (_session->get_play_loop()) {
1823                         if (Config->get_seamless_loop()) {
1824                                 /* the disk buffers contain copies of the loop - we can't
1825                                    just keep playing, so stop the transport. the user
1826                                    can restart as they wish.
1827                                 */
1828                                 affect_transport = true;
1829                         } else {
1830                                 /* disk buffers are normal, so we can keep playing */
1831                                 affect_transport = false;
1832                         }
1833                         _session->request_play_loop (false, true);
1834                 } else if (_session->get_play_range ()) {
1835                         affect_transport = false;
1836                         _session->request_play_range (0, true);
1837                 }
1838         }
1839
1840         if (affect_transport) {
1841                 if (rolling) {
1842                         _session->request_stop (with_abort, true);
1843                 } else {
1844                         if ( Config->get_always_play_range() ) {
1845                                 _session->request_play_range (&editor->get_selection().time, true);
1846                         }
1847
1848                         _session->request_transport_speed (1.0f);
1849                 }
1850         }
1851 }
1852
1853 void
1854 ARDOUR_UI::toggle_session_auto_loop ()
1855 {
1856         Location * looploc = _session->locations()->auto_loop_location();
1857
1858         if (!_session || !looploc) {
1859                 return;
1860         }
1861
1862         if (_session->get_play_loop()) {
1863
1864                 if (_session->transport_rolling()) {
1865
1866                         _session->request_locate (looploc->start(), true);
1867                         _session->request_play_loop (false);
1868
1869                 } else {
1870                         _session->request_play_loop (false);
1871                 }
1872         } else {
1873                 _session->request_play_loop (true);
1874         }
1875
1876         //show the loop markers
1877         looploc->set_hidden (false, this);
1878 }
1879
1880 void
1881 ARDOUR_UI::transport_play_selection ()
1882 {
1883         if (!_session) {
1884                 return;
1885         }
1886
1887         editor->play_selection ();
1888 }
1889
1890 void
1891 ARDOUR_UI::transport_play_preroll ()
1892 {
1893         if (!_session) {
1894                 return;
1895         }
1896         editor->play_with_preroll ();
1897 }
1898
1899 void
1900 ARDOUR_UI::transport_rewind (int option)
1901 {
1902         float current_transport_speed;
1903
1904         if (_session) {
1905                 current_transport_speed = _session->transport_speed();
1906
1907                 if (current_transport_speed >= 0.0f) {
1908                         switch (option) {
1909                         case 0:
1910                                 _session->request_transport_speed (-1.0f);
1911                                 break;
1912                         case 1:
1913                                 _session->request_transport_speed (-4.0f);
1914                                 break;
1915                         case -1:
1916                                 _session->request_transport_speed (-0.5f);
1917                                 break;
1918                         }
1919                 } else {
1920                         /* speed up */
1921                         _session->request_transport_speed (current_transport_speed * 1.5f);
1922                 }
1923         }
1924 }
1925
1926 void
1927 ARDOUR_UI::transport_forward (int option)
1928 {
1929         if (!_session) {
1930                 return;
1931         }
1932
1933         float current_transport_speed = _session->transport_speed();
1934
1935         if (current_transport_speed <= 0.0f) {
1936                 switch (option) {
1937                 case 0:
1938                         _session->request_transport_speed (1.0f);
1939                         break;
1940                 case 1:
1941                         _session->request_transport_speed (4.0f);
1942                         break;
1943                 case -1:
1944                         _session->request_transport_speed (0.5f);
1945                         break;
1946                 }
1947         } else {
1948                 /* speed up */
1949                 _session->request_transport_speed (current_transport_speed * 1.5f);
1950         }
1951 }
1952
1953 void
1954 ARDOUR_UI::toggle_record_enable (uint32_t rid)
1955 {
1956         if (!_session) {
1957                 return;
1958         }
1959
1960         boost::shared_ptr<Route> r;
1961
1962         if ((r = _session->route_by_remote_id (rid)) != 0) {
1963
1964                 Track* t;
1965
1966                 if ((t = dynamic_cast<Track*>(r.get())) != 0) {
1967                         t->set_record_enabled (!t->record_enabled(), this);
1968                 }
1969         }
1970 }
1971
1972 void
1973 ARDOUR_UI::map_transport_state ()
1974 {
1975         if (!_session) {
1976                 auto_loop_button.unset_active_state ();
1977                 play_selection_button.unset_active_state ();
1978                 roll_button.unset_active_state ();
1979                 stop_button.set_active_state (Gtkmm2ext::ExplicitActive);
1980                 return;
1981         }
1982
1983         shuttle_box->map_transport_state ();
1984
1985         float sp = _session->transport_speed();
1986
1987         if (sp != 0.0f) {
1988
1989                 /* we're rolling */
1990
1991                 if (_session->get_play_range()) {
1992
1993                         play_selection_button.set_active_state (Gtkmm2ext::ExplicitActive);
1994                         roll_button.unset_active_state ();
1995                         auto_loop_button.unset_active_state ();
1996
1997                 } else if (_session->get_play_loop ()) {
1998
1999                         auto_loop_button.set_active (true);
2000                         play_selection_button.set_active (false);
2001                         roll_button.set_active (false);
2002
2003                 } else {
2004
2005                         roll_button.set_active (true);
2006                         play_selection_button.set_active (false);
2007                         auto_loop_button.set_active (false);
2008                 }
2009
2010                 if (Config->get_always_play_range()) {
2011                         /* light up both roll and play-selection if they are joined */
2012                         roll_button.set_active (true);
2013                         play_selection_button.set_active (true);
2014                 }
2015
2016                 stop_button.set_active (false);
2017
2018         } else {
2019
2020                 stop_button.set_active (true);
2021                 roll_button.set_active (false);
2022                 play_selection_button.set_active (false);
2023                 auto_loop_button.set_active (false);
2024                 update_disk_space ();
2025         }
2026 }
2027
2028 void
2029 ARDOUR_UI::engine_stopped ()
2030 {
2031         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::engine_stopped)
2032         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, false);
2033         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, true);
2034 }
2035
2036 void
2037 ARDOUR_UI::engine_running ()
2038 {
2039         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::engine_running)
2040         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, true);
2041         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, false);
2042
2043         Glib::RefPtr<Action> action;
2044         const char* action_name = 0;
2045
2046         switch (engine->samples_per_cycle()) {
2047         case 32:
2048                 action_name = X_("JACKLatency32");
2049                 break;
2050         case 64:
2051                 action_name = X_("JACKLatency64");
2052                 break;
2053         case 128:
2054                 action_name = X_("JACKLatency128");
2055                 break;
2056         case 512:
2057                 action_name = X_("JACKLatency512");
2058                 break;
2059         case 1024:
2060                 action_name = X_("JACKLatency1024");
2061                 break;
2062         case 2048:
2063                 action_name = X_("JACKLatency2048");
2064                 break;
2065         case 4096:
2066                 action_name = X_("JACKLatency4096");
2067                 break;
2068         case 8192:
2069                 action_name = X_("JACKLatency8192");
2070                 break;
2071         default:
2072                 /* XXX can we do anything useful ? */
2073                 break;
2074         }
2075
2076         if (action_name) {
2077
2078                 action = ActionManager::get_action (X_("JACK"), action_name);
2079
2080                 if (action) {
2081                         Glib::RefPtr<RadioAction> ract = Glib::RefPtr<RadioAction>::cast_dynamic (action);
2082                         ract->set_active ();
2083                 }
2084         }
2085 }
2086
2087 void
2088 ARDOUR_UI::engine_halted (const char* reason, bool free_reason)
2089 {
2090         if (!Gtkmm2ext::UI::instance()->caller_is_ui_thread()) {
2091                 /* we can't rely on the original string continuing to exist when we are called
2092                    again in the GUI thread, so make a copy and note that we need to
2093                    free it later.
2094                 */
2095                 char *copy = strdup (reason);
2096                 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&ARDOUR_UI::engine_halted, this, copy, true));
2097                 return;
2098         }
2099
2100         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, false);
2101         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, true);
2102
2103         update_sample_rate (0);
2104
2105         string msgstr;
2106
2107         /* if the reason is a non-empty string, it means that the backend was shutdown
2108            rather than just Ardour.
2109         */
2110
2111         if (strlen (reason)) {
2112                 msgstr = string_compose (_("The audio backend (JACK) was shutdown because:\n\n%1"), reason);
2113         } else {
2114                 msgstr = string_compose (_("\
2115 JACK has either been shutdown or it\n\
2116 disconnected %1 because %1\n\
2117 was not fast enough. Try to restart\n\
2118 JACK, reconnect and save the session."), PROGRAM_NAME);
2119         }
2120
2121         MessageDialog msg (*editor, msgstr);
2122         pop_back_splash (msg);
2123         msg.set_keep_above (true);
2124         msg.run ();
2125
2126         if (free_reason) {
2127                 free (const_cast<char*> (reason));
2128         }
2129 }
2130
2131 int32_t
2132 ARDOUR_UI::do_engine_start ()
2133 {
2134         try {
2135                 engine->start();
2136         }
2137
2138         catch (...) {
2139                 engine->stop ();
2140                 error << _("Unable to start the session running")
2141                       << endmsg;
2142                 unload_session ();
2143                 return -2;
2144         }
2145
2146         return 0;
2147 }
2148
2149 void
2150 ARDOUR_UI::update_clocks ()
2151 {
2152         if (!editor || !editor->dragging_playhead()) {
2153                 Clock (_session->audible_frame(), false, editor->get_preferred_edit_position()); /* EMIT_SIGNAL */
2154         }
2155 }
2156
2157 void
2158 ARDOUR_UI::start_clocking ()
2159 {
2160         if (Config->get_super_rapid_clock_update()) {
2161                 clock_signal_connection = SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &ARDOUR_UI::update_clocks));
2162         } else {
2163                 clock_signal_connection = RapidScreenUpdate.connect (sigc::mem_fun(*this, &ARDOUR_UI::update_clocks));
2164         }
2165 }
2166
2167 void
2168 ARDOUR_UI::stop_clocking ()
2169 {
2170         clock_signal_connection.disconnect ();
2171 }
2172
2173 gint
2174 ARDOUR_UI::_blink (void *arg)
2175 {
2176         ((ARDOUR_UI *) arg)->blink ();
2177         return TRUE;
2178 }
2179
2180 void
2181 ARDOUR_UI::blink ()
2182 {
2183         Blink (blink_on = !blink_on); /* EMIT_SIGNAL */
2184 }
2185
2186 void
2187 ARDOUR_UI::start_blinking ()
2188 {
2189         /* Start the blink signal. Everybody with a blinking widget
2190            uses Blink to drive the widget's state.
2191         */
2192
2193         if (blink_timeout_tag < 0) {
2194                 blink_on = false;
2195                 blink_timeout_tag = g_timeout_add (240, _blink, this);
2196         }
2197 }
2198
2199 void
2200 ARDOUR_UI::stop_blinking ()
2201 {
2202         if (blink_timeout_tag >= 0) {
2203                 g_source_remove (blink_timeout_tag);
2204                 blink_timeout_tag = -1;
2205         }
2206 }
2207
2208
2209 /** Ask the user for the name of a new snapshot and then take it.
2210  */
2211
2212 void
2213 ARDOUR_UI::snapshot_session (bool switch_to_it)
2214 {
2215         ArdourPrompter prompter (true);
2216         string snapname;
2217
2218         prompter.set_name ("Prompter");
2219         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2220         prompter.set_title (_("Take Snapshot"));
2221         prompter.set_prompt (_("Name of new snapshot"));
2222
2223         if (!switch_to_it) {
2224                 char timebuf[128];
2225                 time_t n;
2226                 struct tm local_time;
2227
2228                 time (&n);
2229                 localtime_r (&n, &local_time);
2230                 strftime (timebuf, sizeof(timebuf), "%FT%H.%M.%S", &local_time);
2231                 prompter.set_initial_text (timebuf);
2232         }
2233
2234   again:
2235         switch (prompter.run()) {
2236         case RESPONSE_ACCEPT:
2237         {
2238                 prompter.get_result (snapname);
2239
2240                 bool do_save = (snapname.length() != 0);
2241
2242                 if (do_save) {
2243                         char illegal = Session::session_name_is_legal(snapname);
2244                         if (illegal) {
2245                                 MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
2246                                                      "snapshot names may not contain a '%1' character"), illegal));
2247                                 msg.run ();
2248                                 goto again;
2249                         }
2250                 }
2251
2252                 vector<std::string> p;
2253                 get_state_files_in_directory (_session->session_directory().root_path(), p);
2254                 vector<string> n = get_file_names_no_extension (p);
2255                 if (find (n.begin(), n.end(), snapname) != n.end()) {
2256
2257                         ArdourDialog confirm (_("Confirm Snapshot Overwrite"), true);
2258                         Label m (_("A snapshot already exists with that name.  Do you want to overwrite it?"));
2259                         confirm.get_vbox()->pack_start (m, true, true);
2260                         confirm.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2261                         confirm.add_button (_("Overwrite"), Gtk::RESPONSE_ACCEPT);
2262                         confirm.show_all ();
2263                         switch (confirm.run()) {
2264                         case RESPONSE_CANCEL:
2265                                 do_save = false;
2266                         }
2267                 }
2268
2269                 if (do_save) {
2270                         save_state (snapname, switch_to_it);
2271                 }
2272                 break;
2273         }
2274
2275         default:
2276                 break;
2277         }
2278 }
2279
2280 /** Ask the user for a new session name and then rename the session to it.
2281  */
2282
2283 void
2284 ARDOUR_UI::rename_session ()
2285 {
2286         if (!_session) {
2287                 return;
2288         }
2289
2290         ArdourPrompter prompter (true);
2291         string name;
2292
2293         prompter.set_name ("Prompter");
2294         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2295         prompter.set_title (_("Rename Session"));
2296         prompter.set_prompt (_("New session name"));
2297
2298   again:
2299         switch (prompter.run()) {
2300         case RESPONSE_ACCEPT:
2301         {
2302                 prompter.get_result (name);
2303
2304                 bool do_rename = (name.length() != 0);
2305
2306                 if (do_rename) {
2307                         char illegal = Session::session_name_is_legal (name);
2308
2309                         if (illegal) {
2310                                 MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
2311                                                                      "session names may not contain a '%1' character"), illegal));
2312                                 msg.run ();
2313                                 goto again;
2314                         }
2315
2316                         switch (_session->rename (name)) {
2317                         case -1: {
2318                                 MessageDialog msg (_("That name is already in use by another directory/folder. Please try again."));
2319                                 msg.set_position (WIN_POS_MOUSE);
2320                                 msg.run ();
2321                                 goto again;
2322                                 break;
2323                         }
2324                         case 0:
2325                                 break;
2326                         default: {
2327                                 MessageDialog msg (_("Renaming this session failed.\nThings could be seriously messed up at this point"));
2328                                 msg.set_position (WIN_POS_MOUSE);
2329                                 msg.run ();
2330                                 break;
2331                         }
2332                         }
2333                 }
2334
2335                 break;
2336         }
2337
2338         default:
2339                 break;
2340         }
2341 }
2342
2343 void
2344 ARDOUR_UI::save_state (const string & name, bool switch_to_it)
2345 {
2346         XMLNode* node = new XMLNode (X_("UI"));
2347
2348         WM::Manager::instance().add_state (*node);
2349
2350         node->add_child_nocopy (gui_object_state->get_state());
2351
2352         _session->add_extra_xml (*node);
2353
2354         save_state_canfail (name, switch_to_it);
2355 }
2356
2357 int
2358 ARDOUR_UI::save_state_canfail (string name, bool switch_to_it)
2359 {
2360         if (_session) {
2361                 int ret;
2362
2363                 if (name.length() == 0) {
2364                         name = _session->snap_name();
2365                 }
2366
2367                 if ((ret = _session->save_state (name, false, switch_to_it)) != 0) {
2368                         return ret;
2369                 }
2370         }
2371
2372         save_ardour_state (); /* XXX cannot fail? yeah, right ... */
2373         return 0;
2374 }
2375
2376 void
2377 ARDOUR_UI::primary_clock_value_changed ()
2378 {
2379         if (_session) {
2380                 _session->request_locate (primary_clock->current_time ());
2381         }
2382 }
2383
2384 void
2385 ARDOUR_UI::big_clock_value_changed ()
2386 {
2387         if (_session) {
2388                 _session->request_locate (big_clock->current_time ());
2389         }
2390 }
2391
2392 void
2393 ARDOUR_UI::secondary_clock_value_changed ()
2394 {
2395         if (_session) {
2396                 _session->request_locate (secondary_clock->current_time ());
2397         }
2398 }
2399
2400 void
2401 ARDOUR_UI::transport_rec_enable_blink (bool onoff)
2402 {
2403         if (_session == 0) {
2404                 return;
2405         }
2406
2407         if (_session->step_editing()) {
2408                 return;
2409         }
2410
2411         Session::RecordState const r = _session->record_status ();
2412         bool const h = _session->have_rec_enabled_track ();
2413
2414         if (r == Session::Enabled || (r == Session::Recording && !h)) {
2415                 if (onoff) {
2416                         rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
2417                 } else {
2418                         rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
2419                 }
2420         } else if (r == Session::Recording && h) {
2421                 rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
2422         } else {
2423                 rec_button.unset_active_state ();
2424         }
2425 }
2426
2427 void
2428 ARDOUR_UI::save_template ()
2429 {
2430         ArdourPrompter prompter (true);
2431         string name;
2432
2433         if (!check_audioengine()) {
2434                 return;
2435         }
2436
2437         prompter.set_name (X_("Prompter"));
2438         prompter.set_title (_("Save Template"));
2439         prompter.set_prompt (_("Name for template:"));
2440         prompter.set_initial_text(_session->name() + _("-template"));
2441         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2442
2443         switch (prompter.run()) {
2444         case RESPONSE_ACCEPT:
2445                 prompter.get_result (name);
2446
2447                 if (name.length()) {
2448                         _session->save_template (name);
2449                 }
2450                 break;
2451
2452         default:
2453                 break;
2454         }
2455 }
2456
2457 void
2458 ARDOUR_UI::edit_metadata ()
2459 {
2460         SessionMetadataEditor dialog;
2461         dialog.set_session (_session);
2462         editor->ensure_float (dialog);
2463         dialog.run ();
2464 }
2465
2466 void
2467 ARDOUR_UI::import_metadata ()
2468 {
2469         SessionMetadataImporter dialog;
2470         dialog.set_session (_session);
2471         editor->ensure_float (dialog);
2472         dialog.run ();
2473 }
2474
2475 bool
2476 ARDOUR_UI::ask_about_loading_existing_session (const std::string& session_path)
2477 {
2478         std::string str = string_compose (_("This session\n%1\nalready exists. Do you want to open it?"), session_path);
2479
2480         MessageDialog msg (str,
2481                            false,
2482                            Gtk::MESSAGE_WARNING,
2483                            Gtk::BUTTONS_YES_NO,
2484                            true);
2485
2486
2487         msg.set_name (X_("OpenExistingDialog"));
2488         msg.set_title (_("Open Existing Session"));
2489         msg.set_wmclass (X_("existing_session"), PROGRAM_NAME);
2490         msg.set_position (Gtk::WIN_POS_MOUSE);
2491         pop_back_splash (msg);
2492
2493         switch (msg.run()) {
2494         case RESPONSE_YES:
2495                 return true;
2496                 break;
2497         }
2498         return false;
2499 }
2500
2501 int
2502 ARDOUR_UI::build_session_from_nsd (const std::string& session_path, const std::string& session_name)
2503 {
2504         BusProfile bus_profile;
2505
2506         if (nsm || Profile->get_sae()) {
2507
2508                 bus_profile.master_out_channels = 2;
2509                 bus_profile.input_ac = AutoConnectPhysical;
2510                 bus_profile.output_ac = AutoConnectMaster;
2511                 bus_profile.requested_physical_in = 0; // use all available
2512                 bus_profile.requested_physical_out = 0; // use all available
2513
2514         } else {
2515
2516                 /* get settings from advanced section of NSD */
2517
2518                 if (_startup->create_master_bus()) {
2519                         bus_profile.master_out_channels = (uint32_t) _startup->master_channel_count();
2520                 } else {
2521                         bus_profile.master_out_channels = 0;
2522                 }
2523
2524                 if (_startup->connect_inputs()) {
2525                         bus_profile.input_ac = AutoConnectPhysical;
2526                 } else {
2527                         bus_profile.input_ac = AutoConnectOption (0);
2528                 }
2529
2530                 bus_profile.output_ac = AutoConnectOption (0);
2531
2532                 if (_startup->connect_outputs ()) {
2533                         if (_startup->connect_outs_to_master()) {
2534                                 bus_profile.output_ac = AutoConnectMaster;
2535                         } else if (_startup->connect_outs_to_physical()) {
2536                                 bus_profile.output_ac = AutoConnectPhysical;
2537                         }
2538                 }
2539
2540                 bus_profile.requested_physical_in = (uint32_t) _startup->input_limit_count();
2541                 bus_profile.requested_physical_out = (uint32_t) _startup->output_limit_count();
2542         }
2543
2544         if (build_session (session_path, session_name, bus_profile)) {
2545                 return -1;
2546         }
2547
2548         return 0;
2549 }
2550
2551 void
2552 ARDOUR_UI::idle_load (const std::string& path)
2553 {
2554         if (_session) {
2555                 if (Glib::file_test (path, Glib::FILE_TEST_IS_DIR)) {
2556                         /* /path/to/foo => /path/to/foo, foo */
2557                         load_session (path, basename_nosuffix (path));
2558                 } else {
2559                         /* /path/to/foo/foo.ardour => /path/to/foo, foo */
2560                         load_session (Glib::path_get_dirname (path), basename_nosuffix (path));
2561                 }
2562
2563         } else {
2564                 ARDOUR_COMMAND_LINE::session_name = path;
2565         }
2566 }
2567
2568 /** @param quit_on_cancel true if exit() should be called if the user clicks `cancel' in the new session dialog */
2569 int
2570 ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, string load_template)
2571 {
2572         string session_name;
2573         string session_path;
2574         string template_name;
2575         int ret = -1;
2576         bool likely_new = false;
2577
2578         /* deal with any existing DIRTY session now, rather than later. don't
2579          * treat a non-dirty session this way, so that it stays visible
2580          * as we bring up the new session dialog.
2581          */
2582
2583         if (_session && ARDOUR_UI::instance()->video_timeline) {
2584                 ARDOUR_UI::instance()->video_timeline->sync_session_state();
2585         }
2586
2587         if (_session && _session->dirty()) {
2588                 if (unload_session (false)) {
2589                         /* unload cancelled by user */
2590                         return 0;
2591                 }
2592                 ARDOUR_COMMAND_LINE::session_name = "";
2593         }
2594
2595         if (!load_template.empty()) {
2596                 should_be_new = true;
2597                 template_name = load_template;
2598         }
2599
2600         while (ret != 0) {
2601
2602                 if (!ARDOUR_COMMAND_LINE::session_name.empty()) {
2603
2604                         /* if they named a specific statefile, use it, otherwise they are
2605                            just giving a session folder, and we want to use it as is
2606                            to find the session.
2607                         */
2608
2609                         string::size_type suffix = ARDOUR_COMMAND_LINE::session_name.find (statefile_suffix);
2610
2611                         if (suffix != string::npos) {
2612                                 session_path = Glib::path_get_dirname (ARDOUR_COMMAND_LINE::session_name);
2613                                 session_name = ARDOUR_COMMAND_LINE::session_name.substr (0, suffix);
2614                                 session_name = Glib::path_get_basename (session_name);
2615                         } else {
2616                                 session_path = ARDOUR_COMMAND_LINE::session_name;
2617                                 session_name = Glib::path_get_basename (ARDOUR_COMMAND_LINE::session_name);
2618                         }
2619                 } else {
2620                         session_path = "";
2621                         session_name = "";
2622                 }
2623
2624                 delete _startup;
2625                 _startup = new ArdourStartup (should_be_new, session_name, session_path, load_template);
2626
2627                 if (!_startup->ready_without_display()) {
2628                         _startup->present ();
2629                         main().run();
2630                         _startup->hide ();
2631                 }
2632
2633                 switch (_startup->response()) {
2634                 case RESPONSE_OK:
2635                         break;
2636                 default:
2637                         if (quit_on_cancel) {
2638                                 exit (1);
2639                         } else {
2640                                 return ret;
2641                         }
2642                 }
2643
2644                 /* if we run the startup dialog again, offer more than just "new session" */
2645
2646                 should_be_new = false;
2647
2648                 session_name = _startup->session_name (likely_new);
2649
2650                 if (nsm) {
2651                         likely_new = true;
2652                 }
2653
2654                 string::size_type suffix = session_name.find (statefile_suffix);
2655
2656                 if (suffix != string::npos) {
2657                         session_name = session_name.substr (0, suffix);
2658                 }
2659
2660                 /* this shouldn't happen, but we catch it just in case it does */
2661
2662                 if (session_name.empty()) {
2663                         continue;
2664                 }
2665
2666                 if (_startup->use_session_template()) {
2667                         template_name = _startup->session_template_name();
2668                         _session_is_new = true;
2669                 }
2670
2671                 if (session_name[0] == G_DIR_SEPARATOR ||
2672                     (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == G_DIR_SEPARATOR) ||
2673                     (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == G_DIR_SEPARATOR)) {
2674
2675                         /* absolute path or cwd-relative path specified for session name: infer session folder
2676                            from what was given.
2677                         */
2678
2679                         session_path = Glib::path_get_dirname (session_name);
2680                         session_name = Glib::path_get_basename (session_name);
2681
2682                 } else {
2683
2684                         session_path = _startup->session_folder();
2685
2686                         char illegal = Session::session_name_is_legal (session_name);
2687
2688                         if (illegal) {
2689                                 MessageDialog msg (*_startup,
2690                                                    string_compose (_("To ensure compatibility with various systems\n"
2691                                                                      "session names may not contain a '%1' character"),
2692                                                                    illegal));
2693                                 msg.run ();
2694                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2695                                 continue;
2696                         }
2697                 }
2698
2699                 if (Glib::file_test (session_path, Glib::FileTest (G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))) {
2700
2701                         if (likely_new && !nsm) {
2702
2703                                 std::string existing = Glib::build_filename (session_path, session_name);
2704
2705                                 if (!ask_about_loading_existing_session (existing)) {
2706                                         ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2707                                         continue;
2708                                 }
2709                         }
2710
2711                         _session_is_new = false;
2712
2713                 } else {
2714
2715                         if (!likely_new) {
2716                                 if (_startup) {
2717                                         pop_back_splash (*_startup);
2718                                 } else {
2719                                         hide_splash ();
2720                                 }
2721
2722                                 MessageDialog msg (string_compose (_("There is no existing session at \"%1\""), session_path));
2723                                 msg.run ();
2724                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2725                                 continue;
2726                         }
2727
2728                         char illegal = Session::session_name_is_legal(session_name);
2729                         if (illegal) {
2730                                 pop_back_splash (*_startup);
2731                                 MessageDialog msg (*_startup, string_compose(_("To ensure compatibility with various systems\n"
2732                                                      "session names may not contain a '%1' character"), illegal));
2733                                 msg.run ();
2734                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2735                                 continue;
2736                         }
2737
2738                         _session_is_new = true;
2739                 }
2740
2741                 if (likely_new && template_name.empty()) {
2742
2743                         ret = build_session_from_nsd (session_path, session_name);
2744
2745                 } else {
2746
2747                         ret = load_session (session_path, session_name, template_name);
2748
2749                         if (ret == -2) {
2750                                 /* not connected to the AudioEngine, so quit to avoid an infinite loop */
2751                                 exit (1);
2752                         }
2753
2754                         if (!ARDOUR_COMMAND_LINE::immediate_save.empty()) {
2755                                 _session->save_state (ARDOUR_COMMAND_LINE::immediate_save, false);
2756                                 exit (1);
2757                         }
2758                 }
2759         }
2760
2761         return ret;
2762 }
2763
2764 void
2765 ARDOUR_UI::close_session()
2766 {
2767         if (!check_audioengine()) {
2768                 return;
2769         }
2770
2771         if (unload_session (true)) {
2772                 return;
2773         }
2774
2775         ARDOUR_COMMAND_LINE::session_name = "";
2776
2777         if (get_session_parameters (true, false)) {
2778                 exit (1);
2779         }
2780
2781         goto_editor_window ();
2782 }
2783
2784 /** @param snap_name Snapshot name (without .ardour suffix).
2785  *  @return -2 if the load failed because we are not connected to the AudioEngine.
2786  */
2787 int
2788 ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name, std::string mix_template)
2789 {
2790         Session *new_session;
2791         int unload_status;
2792         int retval = -1;
2793
2794         session_loaded = false;
2795
2796         if (!check_audioengine()) {
2797                 return -2;
2798         }
2799
2800         unload_status = unload_session ();
2801
2802         if (unload_status < 0) {
2803                 goto out;
2804         } else if (unload_status > 0) {
2805                 retval = 0;
2806                 goto out;
2807         }
2808
2809         loading_message (string_compose (_("Please wait while %1 loads your session"), PROGRAM_NAME));
2810
2811         try {
2812                 new_session = new Session (*engine, path, snap_name, 0, mix_template);
2813         }
2814
2815         /* this one is special */
2816
2817         catch (AudioEngine::PortRegistrationFailure& err) {
2818
2819                 MessageDialog msg (err.what(),
2820                                    true,
2821                                    Gtk::MESSAGE_INFO,
2822                                    Gtk::BUTTONS_CLOSE);
2823
2824                 msg.set_title (_("Port Registration Error"));
2825                 msg.set_secondary_text (_("Click the Close button to try again."));
2826                 msg.set_position (Gtk::WIN_POS_CENTER);
2827                 pop_back_splash (msg);
2828                 msg.present ();
2829
2830                 int response = msg.run ();
2831
2832                 msg.hide ();
2833
2834                 switch (response) {
2835                 case RESPONSE_CANCEL:
2836                         exit (1);
2837                 default:
2838                         break;
2839                 }
2840                 goto out;
2841         }
2842
2843         catch (...) {
2844
2845                 MessageDialog msg (string_compose(
2846                                            _("Session \"%1 (snapshot %2)\" did not load successfully"),
2847                                            path, snap_name),
2848                                    true,
2849                                    Gtk::MESSAGE_INFO,
2850                                    BUTTONS_OK);
2851
2852                 msg.set_title (_("Loading Error"));
2853                 msg.set_secondary_text (_("Click the Refresh button to try again."));
2854                 msg.add_button (Stock::REFRESH, 1);
2855                 msg.set_position (Gtk::WIN_POS_CENTER);
2856                 pop_back_splash (msg);
2857                 msg.present ();
2858
2859                 int response = msg.run ();
2860
2861                 switch (response) {
2862                 case 1:
2863                         break;
2864                 default:
2865                         exit (1);
2866                 }
2867
2868                 msg.hide ();
2869
2870                 goto out;
2871         }
2872
2873         {
2874                 list<string> const u = new_session->unknown_processors ();
2875                 if (!u.empty()) {
2876                         MissingPluginDialog d (_session, u);
2877                         d.run ();
2878                 }
2879         }
2880
2881         /* Now the session been created, add the transport controls */
2882         new_session->add_controllable(roll_controllable);
2883         new_session->add_controllable(stop_controllable);
2884         new_session->add_controllable(goto_start_controllable);
2885         new_session->add_controllable(goto_end_controllable);
2886         new_session->add_controllable(auto_loop_controllable);
2887         new_session->add_controllable(play_selection_controllable);
2888         new_session->add_controllable(rec_controllable);
2889
2890         set_session (new_session);
2891
2892         session_loaded = true;
2893
2894         goto_editor_window ();
2895
2896         if (_session) {
2897                 _session->set_clean ();
2898         }
2899
2900         flush_pending ();
2901         retval = 0;
2902
2903   out:
2904         return retval;
2905 }
2906
2907 int
2908 ARDOUR_UI::build_session (const std::string& path, const std::string& snap_name, BusProfile& bus_profile)
2909 {
2910         Session *new_session;
2911         int x;
2912
2913         if (!check_audioengine()) {
2914                 return -1;
2915         }
2916
2917         session_loaded = false;
2918
2919         x = unload_session ();
2920
2921         if (x < 0) {
2922                 return -1;
2923         } else if (x > 0) {
2924                 return 0;
2925         }
2926
2927         _session_is_new = true;
2928
2929         try {
2930                 new_session = new Session (*engine, path, snap_name, &bus_profile);
2931         }
2932
2933         catch (...) {
2934
2935                 MessageDialog msg (string_compose(_("Could not create session in \"%1\""), path));
2936                 pop_back_splash (msg);
2937                 msg.run ();
2938                 return -1;
2939         }
2940
2941         /* Give the new session the default GUI state, if such things exist */
2942
2943         XMLNode* n;
2944         n = Config->instant_xml (X_("Editor"));
2945         if (n) {
2946                 new_session->add_instant_xml (*n, false);
2947         }
2948         n = Config->instant_xml (X_("Mixer"));
2949         if (n) {
2950                 new_session->add_instant_xml (*n, false);
2951         }
2952
2953         /* Put the playhead at 0 and scroll fully left */
2954         n = new_session->instant_xml (X_("Editor"));
2955         if (n) {
2956                 n->add_property (X_("playhead"), X_("0"));
2957                 n->add_property (X_("left-frame"), X_("0"));
2958         }
2959
2960         set_session (new_session);
2961
2962         session_loaded = true;
2963
2964         new_session->save_state(new_session->name());
2965
2966         return 0;
2967 }
2968
2969 void
2970 ARDOUR_UI::launch_chat ()
2971 {
2972 #ifdef __APPLE__
2973         open_uri("http://webchat.freenode.net/?channels=ardour-osx");
2974 #else
2975         open_uri("http://webchat.freenode.net/?channels=ardour");
2976 #endif
2977 }
2978
2979 void
2980 ARDOUR_UI::launch_manual ()
2981 {
2982         PBD::open_uri (Config->get_tutorial_manual_url());
2983 }
2984
2985 void
2986 ARDOUR_UI::launch_reference ()
2987 {
2988         PBD::open_uri (Config->get_reference_manual_url());
2989 }
2990
2991 void
2992 ARDOUR_UI::loading_message (const std::string& msg)
2993 {
2994         if (ARDOUR_COMMAND_LINE::no_splash) {
2995                 return;
2996         }
2997
2998         if (!splash) {
2999                 show_splash ();
3000         }
3001
3002         splash->message (msg);
3003 }
3004
3005 void
3006 ARDOUR_UI::show_splash ()
3007 {
3008         if (splash == 0) {
3009                 try {
3010                         splash = new Splash;
3011                 } catch (...) {
3012                         return;
3013                 }
3014         }
3015
3016         splash->display ();
3017 }
3018
3019 void
3020 ARDOUR_UI::hide_splash ()
3021 {
3022         delete splash;
3023         splash = 0;
3024 }
3025
3026 void
3027 ARDOUR_UI::display_cleanup_results (ARDOUR::CleanupReport& rep, const gchar* list_title, const bool msg_delete)
3028 {
3029         size_t removed;
3030
3031         removed = rep.paths.size();
3032
3033         if (removed == 0) {
3034                 MessageDialog msgd (*editor,
3035                                     _("No files were ready for clean-up"),
3036                                     true,
3037                                     Gtk::MESSAGE_INFO,
3038                                     Gtk::BUTTONS_OK);
3039                 msgd.set_title (_("Clean-up"));
3040                 msgd.set_secondary_text (_("If this seems suprising, \n\
3041 check for any existing snapshots.\n\
3042 These may still include regions that\n\
3043 require some unused files to continue to exist."));
3044
3045                 msgd.run ();
3046                 return;
3047         }
3048
3049         ArdourDialog results (_("Clean-up"), true, false);
3050
3051         struct CleanupResultsModelColumns : public Gtk::TreeModel::ColumnRecord {
3052             CleanupResultsModelColumns() {
3053                     add (visible_name);
3054                     add (fullpath);
3055             }
3056             Gtk::TreeModelColumn<std::string> visible_name;
3057             Gtk::TreeModelColumn<std::string> fullpath;
3058         };
3059
3060
3061         CleanupResultsModelColumns results_columns;
3062         Glib::RefPtr<Gtk::ListStore> results_model;
3063         Gtk::TreeView results_display;
3064
3065         results_model = ListStore::create (results_columns);
3066         results_display.set_model (results_model);
3067         results_display.append_column (list_title, results_columns.visible_name);
3068
3069         results_display.set_name ("CleanupResultsList");
3070         results_display.set_headers_visible (true);
3071         results_display.set_headers_clickable (false);
3072         results_display.set_reorderable (false);
3073
3074         Gtk::ScrolledWindow list_scroller;
3075         Gtk::Label txt;
3076         Gtk::VBox dvbox;
3077         Gtk::HBox dhbox;  // the hbox for the image and text
3078         Gtk::HBox ddhbox; // the hbox we eventually pack into the dialog's vbox
3079         Gtk::Image* dimage = manage (new Gtk::Image(Stock::DIALOG_INFO,  Gtk::ICON_SIZE_DIALOG));
3080
3081         dimage->set_alignment(ALIGN_LEFT, ALIGN_TOP);
3082
3083         const string dead_directory = _session->session_directory().dead_path();
3084
3085         /* subst:
3086            %1 - number of files removed
3087            %2 - location of "dead"
3088            %3 - size of files affected
3089            %4 - prefix for "bytes" to produce sensible results (e.g. mega, kilo, giga)
3090         */
3091
3092         const char* bprefix;
3093         double space_adjusted = 0;
3094
3095         if (rep.space < 1000) {
3096                 bprefix = X_("");
3097                 space_adjusted = rep.space;
3098         } else if (rep.space < 1000000) {
3099                 bprefix = _("kilo");
3100                 space_adjusted = truncf((float)rep.space / 1000.0);
3101         } else if (rep.space < 1000000 * 1000) {
3102                 bprefix = _("mega");
3103                 space_adjusted = truncf((float)rep.space / (1000.0 * 1000.0));
3104         } else {
3105                 bprefix = _("giga");
3106                 space_adjusted = truncf((float)rep.space / (1000.0 * 1000 * 1000.0));
3107         }
3108
3109         if (msg_delete) {
3110                 txt.set_markup (string_compose (P_("\
3111 The following file was deleted from %2,\n\
3112 releasing %3 %4bytes of disk space", "\
3113 The following %1 files were deleted from %2,\n\
3114 releasing %3 %4bytes of disk space", removed),
3115                                         removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
3116         } else {
3117                 txt.set_markup (string_compose (P_("\
3118 The following file was not in use and \n\
3119 has been moved to: %2\n\n\
3120 After a restart of %5\n\n\
3121 <span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
3122 will release an additional %3 %4bytes of disk space.\n", "\
3123 The following %1 files were not in use and \n\
3124 have been moved to: %2\n\n\
3125 After a restart of %5\n\n\
3126 <span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
3127 will release an additional %3 %4bytes of disk space.\n", removed),
3128                                         removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
3129         }
3130
3131         dhbox.pack_start (*dimage, true, false, 5);
3132         dhbox.pack_start (txt, true, false, 5);
3133
3134         for (vector<string>::iterator i = rep.paths.begin(); i != rep.paths.end(); ++i) {
3135                 TreeModel::Row row = *(results_model->append());
3136                 row[results_columns.visible_name] = *i;
3137                 row[results_columns.fullpath] = *i;
3138         }
3139
3140         list_scroller.add (results_display);
3141         list_scroller.set_size_request (-1, 150);
3142         list_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
3143
3144         dvbox.pack_start (dhbox, true, false, 5);
3145         dvbox.pack_start (list_scroller, true, false, 5);
3146         ddhbox.pack_start (dvbox, true, false, 5);
3147
3148         results.get_vbox()->pack_start (ddhbox, true, false, 5);
3149         results.add_button (Stock::CLOSE, RESPONSE_CLOSE);
3150         results.set_default_response (RESPONSE_CLOSE);
3151         results.set_position (Gtk::WIN_POS_MOUSE);
3152
3153         results_display.show();
3154         list_scroller.show();
3155         txt.show();
3156         dvbox.show();
3157         dhbox.show();
3158         ddhbox.show();
3159         dimage->show();
3160
3161         //results.get_vbox()->show();
3162         results.set_resizable (false);
3163
3164         results.run ();
3165
3166 }
3167
3168 void
3169 ARDOUR_UI::cleanup ()
3170 {
3171         if (_session == 0) {
3172                 /* shouldn't happen: menu item is insensitive */
3173                 return;
3174         }
3175
3176
3177         MessageDialog checker (_("Are you sure you want to clean-up?"),
3178                                 true,
3179                                 Gtk::MESSAGE_QUESTION,
3180                                 Gtk::BUTTONS_NONE);
3181
3182         checker.set_title (_("Clean-up"));
3183
3184         checker.set_secondary_text(_("Clean-up is a destructive operation.\n\
3185 ALL undo/redo information will be lost if you clean-up.\n\
3186 Clean-up will move all unused files to a \"dead\" location."));
3187
3188         checker.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3189         checker.add_button (_("Clean-up"), RESPONSE_ACCEPT);
3190         checker.set_default_response (RESPONSE_CANCEL);
3191
3192         checker.set_name (_("CleanupDialog"));
3193         checker.set_wmclass (X_("ardour_cleanup"), PROGRAM_NAME);
3194         checker.set_position (Gtk::WIN_POS_MOUSE);
3195
3196         switch (checker.run()) {
3197         case RESPONSE_ACCEPT:
3198                 break;
3199         default:
3200                 return;
3201         }
3202
3203         ARDOUR::CleanupReport rep;
3204
3205         editor->prepare_for_cleanup ();
3206
3207         /* do not allow flush until a session is reloaded */
3208
3209         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Main"), X_("FlushWastebasket"));
3210         if (act) {
3211                 act->set_sensitive (false);
3212         }
3213
3214         if (_session->cleanup_sources (rep)) {
3215                 editor->finish_cleanup ();
3216                 return;
3217         }
3218
3219         editor->finish_cleanup ();
3220
3221         checker.hide();
3222         display_cleanup_results (rep, _("Cleaned Files"), false);
3223 }
3224
3225 void
3226 ARDOUR_UI::flush_trash ()
3227 {
3228         if (_session == 0) {
3229                 /* shouldn't happen: menu item is insensitive */
3230                 return;
3231         }
3232
3233         ARDOUR::CleanupReport rep;
3234
3235         if (_session->cleanup_trash_sources (rep)) {
3236                 return;
3237         }
3238
3239         display_cleanup_results (rep, _("deleted file"), true);
3240 }
3241
3242 void
3243 ARDOUR_UI::add_route (Gtk::Window* float_window)
3244 {
3245         int count;
3246
3247         if (!_session) {
3248                 return;
3249         }
3250
3251         if (add_route_dialog->is_visible()) {
3252                 /* we're already doing this */
3253                 return;
3254         }
3255
3256         if (float_window) {
3257                 add_route_dialog->set_transient_for (*float_window);
3258         }
3259
3260         ResponseType r = (ResponseType) add_route_dialog->run ();
3261
3262         add_route_dialog->hide();
3263
3264         switch (r) {
3265                 case RESPONSE_ACCEPT:
3266                         break;
3267                 default:
3268                         return;
3269                         break;
3270         }
3271
3272         if ((count = add_route_dialog->count()) <= 0) {
3273                 return;
3274         }
3275
3276         PBD::ScopedConnection idle_connection;
3277
3278         if (count > 8) {
3279                 ARDOUR::GUIIdle.connect (idle_connection, MISSING_INVALIDATOR, boost::bind (&Gtkmm2ext::UI::flush_pending, this), gui_context());
3280         }
3281
3282         string template_path = add_route_dialog->track_template();
3283
3284         if (!template_path.empty()) {
3285                 if (add_route_dialog->name_template_is_default())  {
3286                         _session->new_route_from_template (count, template_path, string());
3287                 } else {
3288                         _session->new_route_from_template (count, template_path, add_route_dialog->name_template());
3289                 }
3290                 return;
3291         }
3292
3293         ChanCount input_chan= add_route_dialog->channels ();
3294         ChanCount output_chan;
3295         string name_template = add_route_dialog->name_template ();
3296         PluginInfoPtr instrument = add_route_dialog->requested_instrument ();
3297         RouteGroup* route_group = add_route_dialog->route_group ();
3298         AutoConnectOption oac = Config->get_output_auto_connect();
3299
3300         if (oac & AutoConnectMaster) {
3301                 output_chan.set (DataType::AUDIO, (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan.n_audio()));
3302                 output_chan.set (DataType::MIDI, 0);
3303         } else {
3304                 output_chan = input_chan;
3305         }
3306
3307         /* XXX do something with name template */
3308
3309         switch (add_route_dialog->type_wanted()) {
3310         case AddRouteDialog::AudioTrack:
3311                 session_add_audio_track (input_chan.n_audio(), output_chan.n_audio(), add_route_dialog->mode(), route_group, count, name_template);
3312                 break;
3313         case AddRouteDialog::MidiTrack:
3314                 session_add_midi_track (route_group, count, name_template, instrument);
3315                 break;
3316         case AddRouteDialog::MixedTrack:
3317                 session_add_mixed_track (input_chan, output_chan, route_group, count, name_template, instrument);
3318                 break;
3319         case AddRouteDialog::AudioBus:
3320                 session_add_audio_bus (input_chan.n_audio(), output_chan.n_audio(), route_group, count, name_template);
3321                 break;
3322         }
3323
3324         /* idle connection will end at scope end */
3325 }
3326
3327 void
3328 ARDOUR_UI::stop_video_server (bool ask_confirm)
3329 {
3330         if (!video_server_process && ask_confirm) {
3331                 warning << _("Video-Server was not launched by Ardour. The request to stop it is ignored.") << endmsg;
3332         }
3333         if (video_server_process) {
3334                 if(ask_confirm) {
3335                         ArdourDialog confirm (_("Stop Video-Server"), true);
3336                         Label m (_("Do you really want to stop the Video Server?"));
3337                         confirm.get_vbox()->pack_start (m, true, true);
3338                         confirm.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
3339                         confirm.add_button (_("Yes, Stop It"), Gtk::RESPONSE_ACCEPT);
3340                         confirm.show_all ();
3341                         if (confirm.run() == RESPONSE_CANCEL) {
3342                                 return;
3343                         }
3344                 }
3345                 delete video_server_process;
3346                 video_server_process =0;
3347         }
3348 }
3349
3350 void
3351 ARDOUR_UI::start_video_server_menu (Gtk::Window* float_window)
3352 {
3353   ARDOUR_UI::start_video_server( float_window, true);
3354 }
3355
3356 bool
3357 ARDOUR_UI::start_video_server (Gtk::Window* float_window, bool popup_msg)
3358 {
3359         if (!_session) {
3360                 return false;
3361         }
3362         if (popup_msg) {
3363                 if (ARDOUR_UI::instance()->video_timeline->check_server()) {
3364                         if (video_server_process) {
3365                                 popup_error(_("The Video Server is already started."));
3366                         } else {
3367                                 popup_error(_("An external Video Server is configured and can be reached. Not starting a new instance."));
3368                         }
3369                 }
3370         }
3371
3372         int firsttime = 0;
3373         while (!ARDOUR_UI::instance()->video_timeline->check_server()) {
3374                 if (firsttime++) {
3375                         warning << _("Could not connect to the Video Server. Start it or configure its access URL in Edit -> Preferences.") << endmsg;
3376                 }
3377                 VideoServerDialog *video_server_dialog = new VideoServerDialog (_session);
3378                 if (float_window) {
3379                         video_server_dialog->set_transient_for (*float_window);
3380                 }
3381
3382                 if (!Config->get_show_video_server_dialog() && firsttime < 2) {
3383                         video_server_dialog->hide();
3384                 } else {
3385                         ResponseType r = (ResponseType) video_server_dialog->run ();
3386                         video_server_dialog->hide();
3387                         if (r != RESPONSE_ACCEPT) { return false; }
3388                         if (video_server_dialog->show_again()) {
3389                                 Config->set_show_video_server_dialog(false);
3390                         }
3391                 }
3392
3393                 std::string icsd_exec = video_server_dialog->get_exec_path();
3394                 std::string icsd_docroot = video_server_dialog->get_docroot();
3395                 if (icsd_docroot.empty()) {icsd_docroot = X_("/");}
3396
3397                 struct stat sb;
3398                 if (!lstat (icsd_docroot.c_str(), &sb) == 0 || !S_ISDIR(sb.st_mode)) {
3399                         warning << _("Specified docroot is not an existing directory.") << endmsg;
3400                         continue;
3401                 }
3402                 if ( (!lstat (icsd_exec.c_str(), &sb) == 0)
3403                      || (sb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)) == 0 ) {
3404                         warning << _("Given Video Server is not an executable file.") << endmsg;
3405                         continue;
3406                 }
3407
3408                 char **argp;
3409                 argp=(char**) calloc(9,sizeof(char*));
3410                 argp[0] = strdup(icsd_exec.c_str());
3411                 argp[1] = strdup("-P");
3412                 argp[2] = (char*) calloc(16,sizeof(char)); snprintf(argp[2], 16, "%s", video_server_dialog->get_listenaddr().c_str());
3413                 argp[3] = strdup("-p");
3414                 argp[4] = (char*) calloc(6,sizeof(char)); snprintf(argp[4], 6, "%i", video_server_dialog->get_listenport());
3415                 argp[5] = strdup("-C");
3416                 argp[6] = (char*) calloc(6,sizeof(char)); snprintf(argp[6], 6, "%i", video_server_dialog->get_cachesize());
3417                 argp[7] = strdup(icsd_docroot.c_str());
3418                 argp[8] = 0;
3419                 stop_video_server();
3420
3421                 if (icsd_docroot == X_("/")) {
3422                         Config->set_video_advanced_setup(false);
3423                 } else {
3424                         std::ostringstream osstream;
3425                         osstream << "http://localhost:" << video_server_dialog->get_listenport() << "/";
3426                         Config->set_video_server_url(osstream.str());
3427                         Config->set_video_server_docroot(icsd_docroot);
3428                         Config->set_video_advanced_setup(true);
3429                 }
3430
3431                 if (video_server_process) {
3432                         delete video_server_process;
3433                 }
3434
3435                 video_server_process = new SystemExec(icsd_exec, argp);
3436                 if (video_server_process->start()) {
3437                         warning << _("Cannot launch the video-server") << endmsg;
3438                         continue;
3439                 }
3440                 int timeout = 120; // 6 sec
3441                 while (!ARDOUR_UI::instance()->video_timeline->check_server()) {
3442                         usleep (50000);
3443                         if (--timeout <= 0 || !video_server_process->is_running()) break;
3444                 }
3445                 if (timeout <= 0) {
3446                         warning << _("Video-server was started but does not respond to requests...") << endmsg;
3447                 } else {
3448                         if (!ARDOUR_UI::instance()->video_timeline->check_server_docroot()) {
3449                                 delete video_server_process;
3450                                 video_server_process = 0;
3451                         }
3452                 }
3453         }
3454         return true;
3455 }
3456
3457 void
3458 ARDOUR_UI::add_video (Gtk::Window* float_window)
3459 {
3460         if (!_session) {
3461                 return;
3462         }
3463
3464         if (!start_video_server(float_window, false)) {
3465                 warning << _("Could not connect to the Video Server. Start it or configure its access URL in Edit -> Preferences.") << endmsg;
3466                 return;
3467         }
3468
3469         if (float_window) {
3470                 add_video_dialog->set_transient_for (*float_window);
3471         }
3472
3473         if (add_video_dialog->is_visible()) {
3474                 /* we're already doing this */
3475                 return;
3476         }
3477
3478         ResponseType r = (ResponseType) add_video_dialog->run ();
3479         add_video_dialog->hide();
3480         if (r != RESPONSE_ACCEPT) { return; }
3481
3482         bool local_file, orig_local_file;
3483         std::string path = add_video_dialog->file_name(local_file);
3484
3485         std::string orig_path = path;
3486         orig_local_file = local_file;
3487
3488         bool auto_set_session_fps = add_video_dialog->auto_set_session_fps();
3489
3490         if (local_file && !Glib::file_test(path, Glib::FILE_TEST_EXISTS)) {
3491                 warning << string_compose(_("could not open %1"), path) << endmsg;
3492                 return;
3493         }
3494         if (!local_file && path.length() == 0) {
3495                 warning << _("no video-file selected") << endmsg;
3496                 return;
3497         }
3498
3499         switch (add_video_dialog->import_option()) {
3500                 case VTL_IMPORT_TRANSCODE:
3501                         {
3502                                 TranscodeVideoDialog *transcode_video_dialog;
3503                                 transcode_video_dialog = new TranscodeVideoDialog (_session, path);
3504                                 ResponseType r = (ResponseType) transcode_video_dialog->run ();
3505                                 transcode_video_dialog->hide();
3506                                 if (r != RESPONSE_ACCEPT) {
3507                                         delete transcode_video_dialog;
3508                                         return;
3509                                 }
3510                                 if (!transcode_video_dialog->get_audiofile().empty()) {
3511                                         editor->embed_audio_from_video(transcode_video_dialog->get_audiofile());
3512                                 }
3513                                 switch (transcode_video_dialog->import_option()) {
3514                                         case VTL_IMPORT_TRANSCODED:
3515                                                 path = transcode_video_dialog->get_filename();
3516                                                 local_file = true;
3517                                                 break;
3518                                         case VTL_IMPORT_REFERENCE:
3519                                                 break;
3520                                         default:
3521                                                 delete transcode_video_dialog;
3522                                                 return;
3523                                 }
3524                                 delete transcode_video_dialog;
3525                         }
3526                         break;
3527                 default:
3528                 case VTL_IMPORT_NONE:
3529                         break;
3530         }
3531
3532         /* strip _session->session_directory().video_path() from video file if possible */
3533         if (local_file && !path.compare(0, _session->session_directory().video_path().size(), _session->session_directory().video_path())) {
3534                  path=path.substr(_session->session_directory().video_path().size());
3535                  if (path.at(0) == G_DIR_SEPARATOR) {
3536                          path=path.substr(1);
3537                  }
3538         }
3539
3540         video_timeline->set_update_session_fps(auto_set_session_fps);
3541         if (video_timeline->video_file_info(path, local_file)) {
3542                 XMLNode* node = new XMLNode(X_("Videotimeline"));
3543                 node->add_property (X_("Filename"), path);
3544                 node->add_property (X_("AutoFPS"), auto_set_session_fps?X_("1"):X_("0"));
3545                 node->add_property (X_("LocalFile"), local_file?X_("1"):X_("0"));
3546                 if (orig_local_file) {
3547                         node->add_property (X_("OriginalVideoFile"), orig_path);
3548                 } else {
3549                         node->remove_property (X_("OriginalVideoFile"));
3550                 }
3551                 _session->add_extra_xml (*node);
3552                 _session->set_dirty ();
3553
3554                 _session->maybe_update_session_range(
3555                         std::max(video_timeline->get_offset(), (ARDOUR::frameoffset_t) 0),
3556                         std::max(video_timeline->get_offset() + video_timeline->get_duration(), (ARDOUR::frameoffset_t) 0));
3557
3558
3559                 if (add_video_dialog->launch_xjadeo() && local_file) {
3560                         editor->set_xjadeo_sensitive(true);
3561                         editor->toggle_xjadeo_proc(1);
3562                 } else {
3563                         editor->toggle_xjadeo_proc(0);
3564                 }
3565                 editor->toggle_ruler_video(true);
3566         }
3567 }
3568
3569 void
3570 ARDOUR_UI::remove_video ()
3571 {
3572         video_timeline->close_session();
3573         editor->toggle_ruler_video(false);
3574
3575         /* delete session state */
3576         XMLNode* node = new XMLNode(X_("Videotimeline"));
3577         _session->add_extra_xml(*node);
3578         node = new XMLNode(X_("Videomonitor"));
3579         _session->add_extra_xml(*node);
3580         stop_video_server();
3581 }
3582
3583 void
3584 ARDOUR_UI::flush_videotimeline_cache (bool localcacheonly)
3585 {
3586         if (localcacheonly) {
3587                 video_timeline->vmon_update();
3588         } else {
3589                 video_timeline->flush_cache();
3590         }
3591         editor->queue_visual_videotimeline_update();
3592 }
3593
3594 XMLNode*
3595 ARDOUR_UI::mixer_settings () const
3596 {
3597         XMLNode* node = 0;
3598
3599         if (_session) {
3600                 node = _session->instant_xml(X_("Mixer"));
3601         } else {
3602                 node = Config->instant_xml(X_("Mixer"));
3603         }
3604
3605         if (!node) {
3606                 node = new XMLNode (X_("Mixer"));
3607         }
3608
3609         return node;
3610 }
3611
3612 XMLNode*
3613 ARDOUR_UI::editor_settings () const
3614 {
3615         XMLNode* node = 0;
3616
3617         if (_session) {
3618                 node = _session->instant_xml(X_("Editor"));
3619         } else {
3620                 node = Config->instant_xml(X_("Editor"));
3621         }
3622
3623         if (!node) {
3624                 if (getenv("ARDOUR_INSTANT_XML_PATH")) {
3625                         node = Config->instant_xml(getenv("ARDOUR_INSTANT_XML_PATH"));
3626                 }
3627         }
3628
3629         if (!node) {
3630                 node = new XMLNode (X_("Editor"));
3631         }
3632
3633         return node;
3634 }
3635
3636 XMLNode*
3637 ARDOUR_UI::keyboard_settings () const
3638 {
3639         XMLNode* node = 0;
3640
3641         node = Config->extra_xml(X_("Keyboard"));
3642
3643         if (!node) {
3644                 node = new XMLNode (X_("Keyboard"));
3645         }
3646
3647         return node;
3648 }
3649
3650 void
3651 ARDOUR_UI::create_xrun_marker (framepos_t where)
3652 {
3653         editor->mouse_add_new_marker (where, false, true);
3654 }
3655
3656 void
3657 ARDOUR_UI::halt_on_xrun_message ()
3658 {
3659         MessageDialog msg (*editor,
3660                            _("Recording was stopped because your system could not keep up."));
3661         msg.run ();
3662 }
3663
3664 void
3665 ARDOUR_UI::xrun_handler (framepos_t where)
3666 {
3667         if (!_session) {
3668                 return;
3669         }
3670
3671         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::xrun_handler, where)
3672
3673         if (_session && Config->get_create_xrun_marker() && _session->actively_recording()) {
3674                 create_xrun_marker(where);
3675         }
3676
3677         if (_session && Config->get_stop_recording_on_xrun() && _session->actively_recording()) {
3678                 halt_on_xrun_message ();
3679         }
3680 }
3681
3682 void
3683 ARDOUR_UI::disk_overrun_handler ()
3684 {
3685         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::disk_overrun_handler)
3686
3687         if (!have_disk_speed_dialog_displayed) {
3688                 have_disk_speed_dialog_displayed = true;
3689                 MessageDialog* msg = new MessageDialog (*editor, string_compose (_("\
3690 The disk system on your computer\n\
3691 was not able to keep up with %1.\n\
3692 \n\
3693 Specifically, it failed to write data to disk\n\
3694 quickly enough to keep up with recording.\n"), PROGRAM_NAME));
3695                 msg->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
3696                 msg->show ();
3697         }
3698 }
3699
3700 void
3701 ARDOUR_UI::disk_underrun_handler ()
3702 {
3703         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::disk_underrun_handler)
3704
3705         if (!have_disk_speed_dialog_displayed) {
3706                 have_disk_speed_dialog_displayed = true;
3707                 MessageDialog* msg = new MessageDialog (
3708                         *editor, string_compose (_("The disk system on your computer\n\
3709 was not able to keep up with %1.\n\
3710 \n\
3711 Specifically, it failed to read data from disk\n\
3712 quickly enough to keep up with playback.\n"), PROGRAM_NAME));
3713                 msg->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
3714                 msg->show ();
3715         }
3716 }
3717
3718 void
3719 ARDOUR_UI::disk_speed_dialog_gone (int /*ignored_response*/, MessageDialog* msg)
3720 {
3721         have_disk_speed_dialog_displayed = false;
3722         delete msg;
3723 }
3724
3725 void
3726 ARDOUR_UI::session_dialog (std::string msg)
3727 {
3728         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::session_dialog, msg)
3729
3730         MessageDialog* d;
3731
3732         if (editor) {
3733                 d = new MessageDialog (*editor, msg, false, MESSAGE_INFO, BUTTONS_OK, true);
3734         } else {
3735                 d = new MessageDialog (msg, false, MESSAGE_INFO, BUTTONS_OK, true);
3736         }
3737
3738         d->show_all ();
3739         d->run ();
3740         delete d;
3741 }
3742
3743 int
3744 ARDOUR_UI::pending_state_dialog ()
3745 {
3746         HBox* hbox = new HBox();
3747         Image* image = new Image (Stock::DIALOG_QUESTION, ICON_SIZE_DIALOG);
3748         ArdourDialog dialog (_("Crash Recovery"), true);
3749         Label  message (string_compose (_("\
3750 This session appears to have been in the\n\
3751 middle of recording when %1 or\n\
3752 the computer was shutdown.\n\
3753 \n\
3754 %1 can recover any captured audio for\n\
3755 you, or it can ignore it. Please decide\n\
3756 what you would like to do.\n"), PROGRAM_NAME));
3757         image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
3758         hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
3759         hbox->pack_end (message, PACK_EXPAND_PADDING, 12);
3760         dialog.get_vbox()->pack_start(*hbox, PACK_EXPAND_PADDING, 6);
3761         dialog.add_button (_("Ignore crash data"), RESPONSE_REJECT);
3762         dialog.add_button (_("Recover from crash"), RESPONSE_ACCEPT);
3763         dialog.set_default_response (RESPONSE_ACCEPT);
3764         dialog.set_position (WIN_POS_CENTER);
3765         message.show();
3766         image->show();
3767         hbox->show();
3768
3769         switch (dialog.run ()) {
3770         case RESPONSE_ACCEPT:
3771                 return 1;
3772         default:
3773                 return 0;
3774         }
3775 }
3776
3777 int
3778 ARDOUR_UI::sr_mismatch_dialog (framecnt_t desired, framecnt_t actual)
3779 {
3780         HBox* hbox = new HBox();
3781         Image* image = new Image (Stock::DIALOG_WARNING, ICON_SIZE_DIALOG);
3782         ArdourDialog dialog (_("Sample Rate Mismatch"), true);
3783         Label  message (string_compose (_("\
3784 This session was created with a sample rate of %1 Hz, but\n\
3785 %2 is currently running at %3 Hz.  If you load this session,\n\
3786 audio may be played at the wrong sample rate.\n"), desired, PROGRAM_NAME, actual));
3787
3788         image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
3789         hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
3790         hbox->pack_end (message, PACK_EXPAND_PADDING, 12);
3791         dialog.get_vbox()->pack_start(*hbox, PACK_EXPAND_PADDING, 6);
3792         dialog.add_button (_("Do not load session"), RESPONSE_REJECT);
3793         dialog.add_button (_("Load session anyway"), RESPONSE_ACCEPT);
3794         dialog.set_default_response (RESPONSE_ACCEPT);
3795         dialog.set_position (WIN_POS_CENTER);
3796         message.show();
3797         image->show();
3798         hbox->show();
3799
3800         switch (dialog.run()) {
3801         case RESPONSE_ACCEPT:
3802                 return 0;
3803         default:
3804                 break;
3805         }
3806
3807         return 1;
3808 }
3809
3810
3811 void
3812 ARDOUR_UI::disconnect_from_jack ()
3813 {
3814         if (engine) {
3815                 if (engine->pause ()) {
3816                         MessageDialog msg (*editor, _("Could not disconnect from JACK"));
3817                         msg.run ();
3818                 }
3819
3820                 update_sample_rate (0);
3821         }
3822 }
3823
3824 void
3825 ARDOUR_UI::reconnect_to_jack ()
3826 {
3827         if (engine) {
3828                 if (engine->start ()) {
3829                         MessageDialog msg (*editor,  _("Could not reconnect to JACK"));
3830                         msg.run ();
3831                 }
3832
3833                 update_sample_rate (0);
3834         }
3835 }
3836
3837 void
3838 ARDOUR_UI::use_config ()
3839 {
3840         XMLNode* node = Config->extra_xml (X_("TransportControllables"));
3841         if (node) {
3842                 set_transport_controllable_state (*node);
3843         }
3844 }
3845
3846 void
3847 ARDOUR_UI::update_transport_clocks (framepos_t pos)
3848 {
3849         if (Config->get_primary_clock_delta_edit_cursor()) {
3850                 primary_clock->set (pos, false, editor->get_preferred_edit_position());
3851         } else {
3852                 primary_clock->set (pos);
3853         }
3854
3855         if (Config->get_secondary_clock_delta_edit_cursor()) {
3856                 secondary_clock->set (pos, false, editor->get_preferred_edit_position());
3857         } else {
3858                 secondary_clock->set (pos);
3859         }
3860
3861         if (big_clock_window) {
3862                 big_clock->set (pos);
3863         }
3864         ARDOUR_UI::instance()->video_timeline->manual_seek_video_monitor(pos);
3865 }
3866
3867 void
3868 ARDOUR_UI::step_edit_status_change (bool yn)
3869 {
3870         // XXX should really store pre-step edit status of things
3871         // we make insensitive
3872
3873         if (yn) {
3874                 rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
3875                 rec_button.set_sensitive (false);
3876         } else {
3877                 rec_button.unset_active_state ();;
3878                 rec_button.set_sensitive (true);
3879         }
3880 }
3881
3882 void
3883 ARDOUR_UI::record_state_changed ()
3884 {
3885         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::record_state_changed);
3886
3887         if (!_session || !big_clock_window) {
3888                 /* why bother - the clock isn't visible */
3889                 return;
3890         }
3891
3892         if (_session->record_status () == Session::Recording && _session->have_rec_enabled_track ()) {
3893                 big_clock->set_active (true);
3894         } else {
3895                 big_clock->set_active (false);
3896         }
3897 }
3898
3899 bool
3900 ARDOUR_UI::first_idle ()
3901 {
3902         if (_session) {
3903                 _session->allow_auto_play (true);
3904         }
3905
3906         if (editor) {
3907                 editor->first_idle();
3908         }
3909
3910         Keyboard::set_can_save_keybindings (true);
3911         return false;
3912 }
3913
3914 void
3915 ARDOUR_UI::store_clock_modes ()
3916 {
3917         XMLNode* node = new XMLNode(X_("ClockModes"));
3918
3919         for (vector<AudioClock*>::iterator x = AudioClock::clocks.begin(); x != AudioClock::clocks.end(); ++x) {
3920                 XMLNode* child = new XMLNode (X_("Clock"));
3921
3922                 child->add_property (X_("name"), (*x)->name());
3923                 child->add_property (X_("mode"), enum_2_string ((*x)->mode()));
3924                 child->add_property (X_("on"), ((*x)->off() ? X_("no") : X_("yes")));
3925
3926                 node->add_child_nocopy (*child);
3927         }
3928
3929         _session->add_extra_xml (*node);
3930         _session->set_dirty ();
3931 }
3932
3933 ARDOUR_UI::TransportControllable::TransportControllable (std::string name, ARDOUR_UI& u, ToggleType tp)
3934         : Controllable (name), ui (u), type(tp)
3935 {
3936
3937 }
3938
3939 void
3940 ARDOUR_UI::TransportControllable::set_value (double val)
3941 {
3942         if (val < 0.5) {
3943                 /* do nothing: these are radio-style actions */
3944                 return;
3945         }
3946
3947         const char *action = 0;
3948
3949         switch (type) {
3950         case Roll:
3951                 action = X_("Roll");
3952                 break;
3953         case Stop:
3954                 action = X_("Stop");
3955                 break;
3956         case GotoStart:
3957                 action = X_("GotoStart");
3958                 break;
3959         case GotoEnd:
3960                 action = X_("GotoEnd");
3961                 break;
3962         case AutoLoop:
3963                 action = X_("Loop");
3964                 break;
3965         case PlaySelection:
3966                 action = X_("PlaySelection");
3967                 break;
3968         case RecordEnable:
3969                 action = X_("Record");
3970                 break;
3971         default:
3972                 break;
3973         }
3974
3975         if (action == 0) {
3976                 return;
3977         }
3978
3979         Glib::RefPtr<Action> act = ActionManager::get_action ("Transport", action);
3980
3981         if (act) {
3982                 act->activate ();
3983         }
3984 }
3985
3986 double
3987 ARDOUR_UI::TransportControllable::get_value (void) const
3988 {
3989         float val = 0.0;
3990
3991         switch (type) {
3992         case Roll:
3993                 break;
3994         case Stop:
3995                 break;
3996         case GotoStart:
3997                 break;
3998         case GotoEnd:
3999                 break;
4000         case AutoLoop:
4001                 break;
4002         case PlaySelection:
4003                 break;
4004         case RecordEnable:
4005                 break;
4006         default:
4007                 break;
4008         }
4009
4010         return val;
4011 }
4012
4013 void
4014 ARDOUR_UI::setup_profile ()
4015 {
4016         if (gdk_screen_width() < 1200 || getenv ("ARDOUR_NARROW_SCREEN")) {
4017                 Profile->set_small_screen ();
4018         }
4019
4020         if (getenv ("ARDOUR_SAE")) {
4021                 Profile->set_sae ();
4022                 Profile->set_single_package ();
4023         }
4024 }
4025
4026 int
4027 ARDOUR_UI::missing_file (Session*s, std::string str, DataType type)
4028 {
4029         MissingFileDialog dialog (s, str, type);
4030
4031         dialog.show ();
4032         dialog.present ();
4033
4034         int result = dialog.run ();
4035         dialog.hide ();
4036
4037         switch (result) {
4038         case RESPONSE_OK:
4039                 break;
4040         default:
4041                 return 1; // quit entire session load
4042         }
4043
4044         result = dialog.get_action ();
4045
4046         return result;
4047 }
4048
4049 int
4050 ARDOUR_UI::ambiguous_file (std::string file, std::string /*path*/, std::vector<std::string> hits)
4051 {
4052         AmbiguousFileDialog dialog (file, hits);
4053
4054         dialog.show ();
4055         dialog.present ();
4056
4057         dialog.run ();
4058         return dialog.get_which ();
4059 }
4060
4061 /** Allocate our thread-local buffers */
4062 void
4063 ARDOUR_UI::get_process_buffers ()
4064 {
4065         _process_thread->get_buffers ();
4066 }
4067
4068 /** Drop our thread-local buffers */
4069 void
4070 ARDOUR_UI::drop_process_buffers ()
4071 {
4072         _process_thread->drop_buffers ();
4073 }
4074
4075 void
4076 ARDOUR_UI::feedback_detected ()
4077 {
4078         _feedback_exists = true;
4079 }
4080
4081 void
4082 ARDOUR_UI::successful_graph_sort ()
4083 {
4084         _feedback_exists = false;
4085 }
4086
4087 void
4088 ARDOUR_UI::midi_panic ()
4089 {
4090         if (_session) {
4091                 _session->midi_panic();
4092         }
4093 }
4094
4095 void
4096 ARDOUR_UI::session_format_mismatch (std::string xml_path, std::string backup_path)
4097 {
4098         const char* start_big = "<span size=\"x-large\" weight=\"bold\">";
4099         const char* end_big = "</span>";
4100         const char* start_mono = "<tt>";
4101         const char* end_mono = "</tt>";
4102
4103         MessageDialog msg (string_compose (_("%4This is a session from an older version of %3%5\n\n"
4104                                              "%3 has copied the old session file\n\n%6%1%7\n\nto\n\n%6%2%7\n\n"
4105                                              "From now on, use the -2000 version with older versions of %3"),
4106                                            xml_path, backup_path, PROGRAM_NAME,
4107                                            start_big, end_big,
4108                                            start_mono, end_mono), true);
4109
4110         msg.run ();
4111 }