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/audioengine.h"
  65 #include "ardour/audiofilesource.h"
  66 #include "ardour/automation_watch.h"
  67 #include "ardour/diskstream.h"
  68 #include "ardour/filename_extensions.h"
  69 #include "ardour/filesystem_paths.h"
  70 #include "ardour/port.h"
  71 #include "ardour/process_thread.h"
  72 #include "ardour/profile.h"
  73 #include "ardour/recent_sessions.h"
  74 #include "ardour/session_directory.h"
  75 #include "ardour/session_route.h"
  76 #include "ardour/session_state_utils.h"
  77 #include "ardour/session_utils.h"
  78 #include "ardour/slave.h"
  79
  80 #include "timecode/time.h"
  81
  82 typedef uint64_t microseconds_t;
  83
  84 #include "about.h"
  85 #include "actions.h"
  86 #include "add_route_dialog.h"
  87 #include "ambiguous_file_dialog.h"
  88 #include "ardour_ui.h"
  89 #include "audio_clock.h"
  90 #include "big_clock_window.h"
  91 #include "bundle_manager.h"
  92 #include "engine_dialog.h"
  93 #include "gain_meter.h"
  94 #include "global_port_matrix.h"
  95 #include "gui_object.h"
  96 #include "gui_thread.h"
  97 #include "keyboard.h"
  98 #include "keyeditor.h"
  99 #include "location_ui.h"
 100 #include "main_clock.h"
 101 #include "missing_file_dialog.h"
 102 #include "missing_plugin_dialog.h"
 103 #include "mixer_ui.h"
 104 #include "mouse_cursors.h"
 105 #include "opts.h"
 106 #include "pingback.h"
 107 #include "processor_box.h"
 108 #include "prompter.h"
 109 #include "public_editor.h"
 110 #include "rc_option_editor.h"
 111 #include "route_time_axis.h"
 112 #include "route_params_ui.h"
 113 #include "session_metadata_dialog.h"
 114 #include "session_option_editor.h"
 115 #include "shuttle_control.h"
 116 #include "speaker_dialog.h"
 117 #include "splash.h"
 118 #include "startup.h"
 119 #include "theme_manager.h"
 120 #include "time_axis_view_item.h"
 121 #include "utils.h"
 122 #include "video_server_dialog.h"
 123 #include "add_video_dialog.h"
 124 #include "transcode_video_dialog.h"
 125 #include "system_exec.h"
 126
 127 #include "i18n.h"
 128
 129 using namespace ARDOUR;
 130 using namespace PBD;
 131 using namespace Gtkmm2ext;
 132 using namespace Gtk;
 133 using namespace std;
 134
 135 ARDOUR_UI *ARDOUR_UI::theArdourUI = 0;
 136 UIConfiguration *ARDOUR_UI::ui_config = 0;
 137
 138 sigc::signal<void,bool> ARDOUR_UI::Blink;
 139 sigc::signal<void>      ARDOUR_UI::RapidScreenUpdate;
 140 sigc::signal<void>      ARDOUR_UI::SuperRapidScreenUpdate;
 141 sigc::signal<void, framepos_t, bool, framepos_t> ARDOUR_UI::Clock;
 142 sigc::signal<void>      ARDOUR_UI::CloseAllDialogs;
 143
 144 ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
 145
 146         : Gtkmm2ext::UI (PROGRAM_NAME, argcp, argvp)
 147
 148         , gui_object_state (new GUIObjectState)
 149
 150         , primary_clock (new MainClock (X_("primary"), false, X_("transport"), true, true, true, false, true))
 151         , secondary_clock (new MainClock (X_("secondary"), false, X_("secondary"), true, true, false, false, true))
 152
 153           /* big clock */
 154
 155         , big_clock (new AudioClock (X_("bigclock"), false, "big", true, true, false, false))
 156         , video_timeline(0)
 157
 158           /* start of private members */
 159
 160         , _startup (0)
 161         , engine (0)
 162         , nsm (0)
 163         , _was_dirty (false)
 164         , _mixer_on_top (false)
 165
 166           /* transport */
 167
 168         , roll_controllable (new TransportControllable ("transport roll", *this, TransportControllable::Roll))
 169         , stop_controllable (new TransportControllable ("transport stop", *this, TransportControllable::Stop))
 170         , goto_start_controllable (new TransportControllable ("transport goto start", *this, TransportControllable::GotoStart))
 171         , goto_end_controllable (new TransportControllable ("transport goto end", *this, TransportControllable::GotoEnd))
 172         , auto_loop_controllable (new TransportControllable ("transport auto loop", *this, TransportControllable::AutoLoop))
 173         , play_selection_controllable (new TransportControllable ("transport play selection", *this, TransportControllable::PlaySelection))
 174         , rec_controllable (new TransportControllable ("transport rec-enable", *this, TransportControllable::RecordEnable))
 175
 176         , auto_return_button (ArdourButton::led_default_elements)
 177         , follow_edits_button (ArdourButton::led_default_elements)
 178         , auto_input_button (ArdourButton::led_default_elements)
 179
 180         , auditioning_alert_button (_("audition"))
 181         , solo_alert_button (_("solo"))
 182         , feedback_alert_button (_("feedback"))
 183
 184         , editor_meter(0)
 185         , editor_meter_peak_display()
 186
 187         , speaker_config_window (X_("speaker-config"), _("Speaker Configuration"))
 188         , theme_manager (X_("theme-manager"), _("Theme Manager"))
 189         , key_editor (X_("key-editor"), _("Key Bindings"))
 190         , rc_option_editor (X_("rc-options-editor"), _("Preferences"))
 191         , add_route_dialog (X_("add-routes"), _("Add Tracks/Busses"))
 192         , about (X_("about"), _("About"))
 193         , location_ui (X_("locations"), _("Locations"))
 194         , route_params (X_("inspector"), _("Tracks and Busses"))
 195         , session_option_editor (X_("session-options-editor"), _("Properties"), boost::bind (&ARDOUR_UI::create_session_option_editor, this))
 196         , add_video_dialog (X_("add-video"), _("Add Tracks/Busses"), boost::bind (&ARDOUR_UI::create_add_video_dialog, this))
 197         , bundle_manager (X_("bundle-manager"), _("Bundle Manager"), boost::bind (&ARDOUR_UI::create_bundle_manager, this))
 198         , big_clock_window (X_("big-clock"), _("Big Clock"), boost::bind (&ARDOUR_UI::create_big_clock_window, this))
 199         , audio_port_matrix (X_("audio-connection-manager"), _("Audio Connections"), boost::bind (&ARDOUR_UI::create_global_port_matrix, this, ARDOUR::DataType::AUDIO))
 200         , midi_port_matrix (X_("midi-connection-manager"), _("MIDI Connections"), boost::bind (&ARDOUR_UI::create_global_port_matrix, this, ARDOUR::DataType::MIDI))
 201
 202         , error_log_button (_("Errors"))
 203
 204         , _status_bar_visibility (X_("status-bar"))
 205         , _feedback_exists (false)
 206
 207 {
 208         Gtkmm2ext::init(localedir);
 209
 210         splash = 0;
 211
 212         if (theArdourUI == 0) {
 213                 theArdourUI = this;
 214         }
 215
 216         ui_config = new UIConfiguration();
 217         ui_config->ParameterChanged.connect (sigc::mem_fun (*this, &ARDOUR_UI::parameter_changed));
 218         boost::function<void (string)> pc (boost::bind (&ARDOUR_UI::parameter_changed, this, _1));
 219         ui_config->map_parameters (pc);
 220
 221         editor = 0;
 222         mixer = 0;
 223         meterbridge = 0;
 224         editor = 0;
 225         engine = 0;
 226         _session_is_new = false;
 227         session_selector_window = 0;
 228         last_key_press_time = 0;
 229         video_server_process = 0;
 230         open_session_selector = 0;
 231         have_configure_timeout = false;
 232         have_disk_speed_dialog_displayed = false;
 233         session_loaded = false;
 234         ignore_dual_punch = false;
 235
 236         roll_button.set_controllable (roll_controllable);
 237         stop_button.set_controllable (stop_controllable);
 238         goto_start_button.set_controllable (goto_start_controllable);
 239         goto_end_button.set_controllable (goto_end_controllable);
 240         auto_loop_button.set_controllable (auto_loop_controllable);
 241         play_selection_button.set_controllable (play_selection_controllable);
 242         rec_button.set_controllable (rec_controllable);
 243
 244         roll_button.set_name ("transport button");
 245         stop_button.set_name ("transport button");
 246         goto_start_button.set_name ("transport button");
 247         goto_end_button.set_name ("transport button");
 248         auto_loop_button.set_name ("transport button");
 249         play_selection_button.set_name ("transport button");
 250         rec_button.set_name ("transport recenable button");
 251         midi_panic_button.set_name ("transport button");
 252
 253         goto_start_button.set_tweaks (ArdourButton::ShowClick);
 254         goto_end_button.set_tweaks (ArdourButton::ShowClick);
 255         midi_panic_button.set_tweaks (ArdourButton::ShowClick);
 256
 257         last_configure_time= 0;
 258         last_peak_grab = 0;
 259
 260         ARDOUR::Diskstream::DiskOverrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_overrun_handler, this), gui_context());
 261         ARDOUR::Diskstream::DiskUnderrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_underrun_handler, this), gui_context());
 262
 263         ARDOUR::Session::VersionMismatch.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::session_format_mismatch, this, _1, _2), gui_context());
 264
 265         /* handle dialog requests */
 266
 267         ARDOUR::Session::Dialog.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::session_dialog, this, _1), gui_context());
 268
 269         /* handle pending state with a dialog (PROBLEM: needs to return a value and thus cannot be x-thread) */
 270
 271         ARDOUR::Session::AskAboutPendingState.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::pending_state_dialog, this));
 272
 273         /* handle sr mismatch with a dialog (PROBLEM: needs to return a value and thus cannot be x-thread) */
 274
 275         ARDOUR::Session::AskAboutSampleRateMismatch.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::sr_mismatch_dialog, this, _1, _2));
 276
 277         /* handle requests to quit (coming from JACK session) */
 278
 279         ARDOUR::Session::Quit.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::finish, this), gui_context ());
 280
 281         /* tell the user about feedback */
 282
 283         ARDOUR::Session::FeedbackDetected.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::feedback_detected, this), gui_context ());
 284         ARDOUR::Session::SuccessfulGraphSort.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::successful_graph_sort, this), gui_context ());
 285
 286         /* handle requests to deal with missing files */
 287
 288         ARDOUR::Session::MissingFile.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::missing_file, this, _1, _2, _3));
 289
 290         /* and ambiguous files */
 291
 292         ARDOUR::FileSource::AmbiguousFileName.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::ambiguous_file, this, _1, _2, _3));
 293
 294         /* lets get this party started */
 295
 296         setup_gtk_ardour_enums ();
 297         setup_profile ();
 298
 299         SessionEvent::create_per_thread_pool ("GUI", 512);
 300
 301         /* we like keyboards */
 302
 303         keyboard = new ArdourKeyboard(*this);
 304
 305         XMLNode* node = ARDOUR_UI::instance()->keyboard_settings();
 306         if (node) {
 307                 keyboard->set_state (*node, Stateful::loading_state_version);
 308         }
 309
 310         /* we don't like certain modifiers */
 311         Bindings::set_ignored_state (GDK_LOCK_MASK|GDK_MOD2_MASK|GDK_MOD3_MASK);
 312
 313         reset_dpi();
 314
 315         TimeAxisViewItem::set_constant_heights ();
 316
 317         /* Set this up so that our window proxies can register actions */
 318
 319         ActionManager::init ();
 320
 321         /* The following must happen after ARDOUR::init() so that Config is set up */
 322
 323         const XMLNode* ui_xml = Config->extra_xml (X_("UI"));
 324
 325         if (ui_xml) {
 326                 theme_manager.set_state (*ui_xml);
 327                 key_editor.set_state (*ui_xml);
 328                 rc_option_editor.set_state (*ui_xml);
 329                 session_option_editor.set_state (*ui_xml);
 330                 speaker_config_window.set_state (*ui_xml);
 331                 about.set_state (*ui_xml);
 332                 add_route_dialog.set_state (*ui_xml);
 333                 add_video_dialog.set_state (*ui_xml);
 334                 route_params.set_state (*ui_xml);
 335                 bundle_manager.set_state (*ui_xml);
 336                 location_ui.set_state (*ui_xml);
 337                 big_clock_window.set_state (*ui_xml);
 338                 audio_port_matrix.set_state (*ui_xml);
 339                 midi_port_matrix.set_state (*ui_xml);
 340         }
 341
 342         WM::Manager::instance().register_window (&theme_manager);
 343         WM::Manager::instance().register_window (&key_editor);
 344         WM::Manager::instance().register_window (&rc_option_editor);
 345         WM::Manager::instance().register_window (&session_option_editor);
 346         WM::Manager::instance().register_window (&speaker_config_window);
 347         WM::Manager::instance().register_window (&about);
 348         WM::Manager::instance().register_window (&add_route_dialog);
 349         WM::Manager::instance().register_window (&add_video_dialog);
 350         WM::Manager::instance().register_window (&route_params);
 351         WM::Manager::instance().register_window (&bundle_manager);
 352         WM::Manager::instance().register_window (&location_ui);
 353         WM::Manager::instance().register_window (&big_clock_window);
 354         WM::Manager::instance().register_window (&audio_port_matrix);
 355         WM::Manager::instance().register_window (&midi_port_matrix);
 356
 357         /* We need to instantiate the theme manager because it loads our
 358            theme files. This should really change so that its window
 359            and its functionality are separate
 360         */
 361
 362         (void) theme_manager.get (true);
 363
 364         starting.connect (sigc::mem_fun(*this, &ARDOUR_UI::startup));
 365         stopping.connect (sigc::mem_fun(*this, &ARDOUR_UI::shutdown));
 366
 367         _process_thread = new ProcessThread ();
 368         _process_thread->init ();
 369
 370         DPIReset.connect (sigc::mem_fun (*this, &ARDOUR_UI::resize_text_widgets));
 371 }
 372
 373 GlobalPortMatrixWindow*
 374 ARDOUR_UI::create_global_port_matrix (ARDOUR::DataType type)
 375 {
 376         if (!_session) {
 377                 return 0;
 378         }
 379         return new GlobalPortMatrixWindow (_session, type);
 380 }
 381
 382 int
 383 ARDOUR_UI::create_engine ()
 384 {
 385         // this gets called every time by new_session()
 386
 387         if (engine) {
 388                 return 0;
 389         }
 390
 391         loading_message (_("Starting audio engine"));
 392
 393         try {
 394                 engine = new ARDOUR::AudioEngine (ARDOUR_COMMAND_LINE::jack_client_name, ARDOUR_COMMAND_LINE::jack_session_uuid);
 395
 396         } catch (...) {
 397
 398                 return -1;
 399         }
 400
 401         engine->Stopped.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::engine_stopped, this), gui_context());
 402         engine->Running.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::engine_running, this), gui_context());
 403         engine->SampleRateChanged.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::update_sample_rate, this, _1), gui_context());
 404
 405         engine->Halted.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::engine_halted, this, _1, false));
 406
 407         ARDOUR::Port::set_connecting_blocked (ARDOUR_COMMAND_LINE::no_connect_ports);
 408
 409         post_engine ();
 410
 411         return 0;
 412 }
 413
 414 void
 415 ARDOUR_UI::post_engine ()
 416 {
 417         /* Things to be done once we create the AudioEngine
 418          */
 419
 420         ARDOUR::init_post_engine ();
 421
 422         _tooltips.enable();
 423
 424         ActionManager::load_menus ();
 425
 426         if (setup_windows ()) {
 427                 throw failed_constructor ();
 428         }
 429
 430         /* Do this after setup_windows (), as that's when the _status_bar_visibility is created */
 431         XMLNode* n = Config->extra_xml (X_("UI"));
 432         if (n) {
 433                 _status_bar_visibility.set_state (*n);
 434         }
 435
 436         check_memory_locking();
 437
 438         /* this is the first point at which all the keybindings are available */
 439
 440         if (ARDOUR_COMMAND_LINE::show_key_actions) {
 441                 vector<string> names;
 442                 vector<string> paths;
 443                 vector<string> tooltips;
 444                 vector<string> keys;
 445                 vector<AccelKey> bindings;
 446
 447                 ActionManager::get_all_actions (names, paths, tooltips, keys, bindings);
 448
 449                 vector<string>::iterator n;
 450                 vector<string>::iterator k;
 451                 for (n = names.begin(), k = keys.begin(); n != names.end(); ++n, ++k) {
 452                         cout << "Action: " << (*n) << " bound to " << (*k) << endl;
 453                 }
 454
 455                 exit (0);
 456         }
 457
 458         blink_timeout_tag = -1;
 459
 460         /* this being a GUI and all, we want peakfiles */
 461
 462         AudioFileSource::set_build_peakfiles (true);
 463         AudioFileSource::set_build_missing_peakfiles (true);
 464
 465         /* set default clock modes */
 466
 467         if (Profile->get_sae()) {
 468                 primary_clock->set_mode (AudioClock::BBT);
 469                 secondary_clock->set_mode (AudioClock::MinSec);
 470         }  else {
 471                 primary_clock->set_mode (AudioClock::Timecode);
 472                 secondary_clock->set_mode (AudioClock::BBT);
 473         }
 474
 475         /* start the time-of-day-clock */
 476
 477 #ifndef GTKOSX
 478         /* OS X provides a nearly-always visible wallclock, so don't be stupid */
 479         update_wall_clock ();
 480         Glib::signal_timeout().connect_seconds (sigc::mem_fun(*this, &ARDOUR_UI::update_wall_clock), 1);
 481 #endif
 482
 483         update_disk_space ();
 484         update_cpu_load ();
 485         update_sample_rate (engine->frame_rate());
 486         update_timecode_format ();
 487
 488         Config->ParameterChanged.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::parameter_changed, this, _1), gui_context());
 489         boost::function<void (string)> pc (boost::bind (&ARDOUR_UI::parameter_changed, this, _1));
 490         Config->map_parameters (pc);
 491
 492         /* now start and maybe save state */
 493
 494         if (do_engine_start () == 0) {
 495                 if (_session && _session_is_new) {
 496                         /* we need to retain initial visual
 497                            settings for a new session
 498                         */
 499                         _session->save_state ("");
 500                 }
 501         }
 502 }
 503
 504 ARDOUR_UI::~ARDOUR_UI ()
 505 {
 506         delete keyboard;
 507         delete editor;
 508         delete mixer;
 509         delete meterbridge;
 510
 511         stop_video_server();
 512 }
 513
 514 void
 515 ARDOUR_UI::pop_back_splash (Gtk::Window& win)
 516 {
 517         if (Splash::instance()) {
 518                 Splash::instance()->pop_back_for (win);
 519         }
 520 }
 521
 522 gint
 523 ARDOUR_UI::configure_timeout ()
 524 {
 525         if (last_configure_time == 0) {
 526                 /* no configure events yet */
 527                 return true;
 528         }
 529
 530         /* force a gap of 0.5 seconds since the last configure event
 531          */
 532
 533         if (get_microseconds() - last_configure_time < 500000) {
 534                 return true;
 535         } else {
 536                 have_configure_timeout = false;
 537                 save_ardour_state ();
 538                 return false;
 539         }
 540 }
 541
 542 gboolean
 543 ARDOUR_UI::configure_handler (GdkEventConfigure* /*conf*/)
 544 {
 545         if (have_configure_timeout) {
 546                 last_configure_time = get_microseconds();
 547         } else {
 548                 Glib::signal_timeout().connect (sigc::mem_fun(*this, &ARDOUR_UI::configure_timeout), 100);
 549                 have_configure_timeout = true;
 550         }
 551
 552         return FALSE;
 553 }
 554
 555 void
 556 ARDOUR_UI::set_transport_controllable_state (const XMLNode& node)
 557 {
 558         const XMLProperty* prop;
 559
 560         if ((prop = node.property ("roll")) != 0) {
 561                 roll_controllable->set_id (prop->value());
 562         }
 563         if ((prop = node.property ("stop")) != 0) {
 564                 stop_controllable->set_id (prop->value());
 565         }
 566         if ((prop = node.property ("goto-start")) != 0) {
 567                 goto_start_controllable->set_id (prop->value());
 568         }
 569         if ((prop = node.property ("goto-end")) != 0) {
 570                 goto_end_controllable->set_id (prop->value());
 571         }
 572         if ((prop = node.property ("auto-loop")) != 0) {
 573                 auto_loop_controllable->set_id (prop->value());
 574         }
 575         if ((prop = node.property ("play-selection")) != 0) {
 576                 play_selection_controllable->set_id (prop->value());
 577         }
 578         if ((prop = node.property ("rec")) != 0) {
 579                 rec_controllable->set_id (prop->value());
 580         }
 581         if ((prop = node.property ("shuttle")) != 0) {
 582                 shuttle_box->controllable()->set_id (prop->value());
 583         }
 584 }
 585
 586 XMLNode&
 587 ARDOUR_UI::get_transport_controllable_state ()
 588 {
 589         XMLNode* node = new XMLNode(X_("TransportControllables"));
 590         char buf[64];
 591
 592         roll_controllable->id().print (buf, sizeof (buf));
 593         node->add_property (X_("roll"), buf);
 594         stop_controllable->id().print (buf, sizeof (buf));
 595         node->add_property (X_("stop"), buf);
 596         goto_start_controllable->id().print (buf, sizeof (buf));
 597         node->add_property (X_("goto_start"), buf);
 598         goto_end_controllable->id().print (buf, sizeof (buf));
 599         node->add_property (X_("goto_end"), buf);
 600         auto_loop_controllable->id().print (buf, sizeof (buf));
 601         node->add_property (X_("auto_loop"), buf);
 602         play_selection_controllable->id().print (buf, sizeof (buf));
 603         node->add_property (X_("play_selection"), buf);
 604         rec_controllable->id().print (buf, sizeof (buf));
 605         node->add_property (X_("rec"), buf);
 606         shuttle_box->controllable()->id().print (buf, sizeof (buf));
 607         node->add_property (X_("shuttle"), buf);
 608
 609         return *node;
 610 }
 611
 612
 613 gint
 614 ARDOUR_UI::autosave_session ()
 615 {
 616         if (g_main_depth() > 1) {
 617                 /* inside a recursive main loop,
 618                    give up because we may not be able to
 619                    take a lock.
 620                 */
 621                 return 1;
 622         }
 623
 624         if (!Config->get_periodic_safety_backups()) {
 625                 return 1;
 626         }
 627
 628         if (_session) {
 629                 _session->maybe_write_autosave();
 630         }
 631
 632         return 1;
 633 }
 634
 635 void
 636 ARDOUR_UI::update_autosave ()
 637 {
 638         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::update_autosave)
 639
 640         if (_session && _session->dirty()) {
 641                 if (_autosave_connection.connected()) {
 642                         _autosave_connection.disconnect();
 643                 }
 644
 645                 _autosave_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &ARDOUR_UI::autosave_session),
 646                                 Config->get_periodic_safety_backup_interval() * 1000);
 647
 648         } else {
 649                 if (_autosave_connection.connected()) {
 650                         _autosave_connection.disconnect();
 651                 }
 652         }
 653 }
 654
 655 void
 656 ARDOUR_UI::check_announcements ()
 657 {
 658 #ifdef PHONE_HOME
 659         string _annc_filename;
 660
 661 #ifdef __APPLE__
 662         _annc_filename = PROGRAM_NAME "_announcements_osx_";
 663 #else
 664         _annc_filename = PROGRAM_NAME "_announcements_linux_";
 665 #endif
 666         _annc_filename.append (VERSIONSTRING);
 667
 668         std::string path = Glib::build_filename (user_config_directory(), _annc_filename);
 669         std::ifstream announce_file (path.c_str());
 670         if ( announce_file.fail() )
 671                 _announce_string = "";
 672         else {
 673                 std::stringstream oss;
 674                 oss << announce_file.rdbuf();
 675                 _announce_string = oss.str();
 676         }
 677
 678         pingback (VERSIONSTRING, path);
 679 #endif
 680 }
 681
 682 void
 683 ARDOUR_UI::startup ()
 684 {
 685         Application* app = Application::instance ();
 686         char *nsm_url;
 687         app->ShouldQuit.connect (sigc::mem_fun (*this, &ARDOUR_UI::queue_finish));
 688         app->ShouldLoad.connect (sigc::mem_fun (*this, &ARDOUR_UI::idle_load));
 689
 690         if (ARDOUR_COMMAND_LINE::check_announcements) {
 691                 check_announcements ();
 692         }
 693
 694         app->ready ();
 695
 696         nsm_url = getenv ("NSM_URL");
 697
 698         if (nsm_url) {
 699                 nsm = new NSM_Client;
 700                 if (!nsm->init (nsm_url)) {
 701                         nsm->announce (PROGRAM_NAME, ":dirty:", "ardour3");
 702
 703                         unsigned int i = 0;
 704                         // wait for announce reply from nsm server
 705                         for ( i = 0; i < 5000; ++i) {
 706                                 nsm->check ();
 707                                 usleep (i);
 708                                 if (nsm->is_active())
 709                                         break;
 710                         }
 711                         // wait for open command from nsm server
 712                         for ( i = 0; i < 5000; ++i) {
 713                                 nsm->check ();
 714                                 usleep (1000);
 715                                 if (nsm->client_id ())
 716                                         break;
 717                         }
 718
 719                         if (_session && nsm) {
 720                                 _session->set_nsm_state( nsm->is_active() );
 721                         }
 722
 723                         // nsm requires these actions disabled
 724                         vector<string> action_names;
 725                         action_names.push_back("SaveAs");
 726                         action_names.push_back("Rename");
 727                         action_names.push_back("New");
 728                         action_names.push_back("Open");
 729                         action_names.push_back("Recent");
 730                         action_names.push_back("Close");
 731
 732                         for (vector<string>::const_iterator n = action_names.begin(); n != action_names.end(); ++n) {
 733                                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Main"), (*n).c_str());
 734                                 if (act) {
 735                                         act->set_sensitive (false);
 736                                 }
 737                         }
 738
 739                 }
 740                 else {
 741                         delete nsm;
 742                         nsm = 0;
 743                 }
 744         }
 745
 746         else if (get_session_parameters (true, ARDOUR_COMMAND_LINE::new_session, ARDOUR_COMMAND_LINE::load_template)) {
 747                 exit (1);
 748         }
 749
 750         use_config ();
 751
 752         goto_editor_window ();
 753
 754         WM::Manager::instance().show_visible ();
 755
 756         /* We have to do this here since goto_editor_window() ends up calling show_all() on the
 757          * editor window, and we may want stuff to be hidden.
 758          */
 759         _status_bar_visibility.update ();
 760
 761         BootMessage (string_compose (_("%1 is ready for use"), PROGRAM_NAME));
 762 }
 763
 764 void
 765 ARDOUR_UI::no_memory_warning ()
 766 {
 767         XMLNode node (X_("no-memory-warning"));
 768         Config->add_instant_xml (node);
 769 }
 770
 771 void
 772 ARDOUR_UI::check_memory_locking ()
 773 {
 774 #ifdef __APPLE__
 775         /* OS X doesn't support mlockall(2), and so testing for memory locking capability there is pointless */
 776         return;
 777 #else // !__APPLE__
 778
 779         XMLNode* memory_warning_node = Config->instant_xml (X_("no-memory-warning"));
 780
 781         if (engine->is_realtime() && memory_warning_node == 0) {
 782
 783                 struct rlimit limits;
 784                 int64_t ram;
 785                 long pages, page_size;
 786 #ifdef __FreeBSD__
 787                 size_t pages_len=sizeof(pages);
 788                 if ((page_size = getpagesize()) < 0 ||
 789                                 sysctlbyname("hw.availpages", &pages, &pages_len, NULL, 0))
 790 #else
 791                 if ((page_size = sysconf (_SC_PAGESIZE)) < 0 ||(pages = sysconf (_SC_PHYS_PAGES)) < 0)
 792 #endif
 793                 {
 794                         ram = 0;
 795                 } else {
 796                         ram = (int64_t) pages * (int64_t) page_size;
 797                 }
 798
 799                 if (getrlimit (RLIMIT_MEMLOCK, &limits)) {
 800                         return;
 801                 }
 802
 803                 if (limits.rlim_cur != RLIM_INFINITY) {
 804
 805                         if (ram == 0 || ((double) limits.rlim_cur / ram) < 0.75) {
 806
 807                                 MessageDialog msg (
 808                                         string_compose (
 809                                                 _("WARNING: Your system has a limit for maximum amount of locked memory. "
 810                                                   "This might cause %1 to run out of memory before your system "
 811                                                   "runs out of memory. \n\n"
 812                                                   "You can view the memory limit with 'ulimit -l', "
 813                                                   "and it is normally controlled by %2"),
 814                                                 PROGRAM_NAME,
 815 #ifdef __FreeBSD__
 816                                                 X_("/etc/login.conf")
 817 #else
 818                                                 X_(" /etc/security/limits.conf")
 819 #endif
 820                                         ).c_str());
 821
 822                                 msg.set_default_response (RESPONSE_OK);
 823
 824                                 VBox* vbox = msg.get_vbox();
 825                                 HBox hbox;
 826                                 CheckButton cb (_("Do not show this window again"));
 827
 828                                 cb.signal_toggled().connect (sigc::mem_fun (*this, &ARDOUR_UI::no_memory_warning));
 829
 830                                 hbox.pack_start (cb, true, false);
 831                                 vbox->pack_start (hbox);
 832                                 cb.show();
 833                                 vbox->show();
 834                                 hbox.show ();
 835
 836                                 pop_back_splash (msg);
 837
 838                                 editor->ensure_float (msg);
 839                                 msg.run ();
 840                         }
 841                 }
 842         }
 843 #endif // !__APPLE__
 844 }
 845
 846
 847 void
 848 ARDOUR_UI::queue_finish ()
 849 {
 850         Glib::signal_idle().connect (mem_fun (*this, &ARDOUR_UI::idle_finish));
 851 }
 852
 853 bool
 854 ARDOUR_UI::idle_finish ()
 855 {
 856         finish ();
 857         return false; /* do not call again */
 858 }
 859
 860 void
 861 ARDOUR_UI::finish()
 862 {
 863         if (_session) {
 864                 ARDOUR_UI::instance()->video_timeline->sync_session_state();
 865
 866                 if (_session->dirty()) {
 867                         vector<string> actions;
 868                         actions.push_back (_("Don't quit"));
 869                         actions.push_back (_("Just quit"));
 870                         actions.push_back (_("Save and quit"));
 871                         switch (ask_about_saving_session(actions)) {
 872                         case -1:
 873                                 return;
 874                                 break;
 875                         case 1:
 876                                 /* use the default name */
 877                                 if (save_state_canfail ("")) {
 878                                         /* failed - don't quit */
 879                                         MessageDialog msg (*editor,
 880                                                            string_compose (_("\
 881 %1 was unable to save your session.\n\n\
 882 If you still wish to quit, please use the\n\n\
 883 \"Just quit\" option."), PROGRAM_NAME));
 884                                         pop_back_splash(msg);
 885                                         msg.run ();
 886                                         return;
 887                                 }
 888                                 break;
 889                         case 0:
 890                                 break;
 891                         }
 892                 }
 893
 894                 second_connection.disconnect ();
 895                 point_one_second_connection.disconnect ();
 896                 point_zero_something_second_connection.disconnect();
 897         }
 898
 899         delete ARDOUR_UI::instance()->video_timeline;
 900         ARDOUR_UI::instance()->video_timeline = NULL;
 901         stop_video_server();
 902
 903         /* Save state before deleting the session, as that causes some
 904            windows to be destroyed before their visible state can be
 905            saved.
 906         */
 907         save_ardour_state ();
 908
 909         close_all_dialogs ();
 910
 911         loading_message (string_compose (_("Please wait while %1 cleans up..."), PROGRAM_NAME));
 912
 913         if (_session) {
 914                 // _session->set_deletion_in_progress ();
 915                 _session->set_clean ();
 916                 _session->remove_pending_capture_state ();
 917                 delete _session;
 918                 _session = 0;
 919         }
 920
 921         engine->stop (true);
 922         quit ();
 923 }
 924
 925 int
 926 ARDOUR_UI::ask_about_saving_session (const vector<string>& actions)
 927 {
 928         ArdourDialog window (_("Unsaved Session"));
 929         Gtk::HBox dhbox;  // the hbox for the image and text
 930         Gtk::Label  prompt_label;
 931         Gtk::Image* dimage = manage (new Gtk::Image(Stock::DIALOG_WARNING,  Gtk::ICON_SIZE_DIALOG));
 932
 933         string msg;
 934
 935         assert (actions.size() >= 3);
 936
 937         window.add_button (actions[0], RESPONSE_REJECT);
 938         window.add_button (actions[1], RESPONSE_APPLY);
 939         window.add_button (actions[2], RESPONSE_ACCEPT);
 940
 941         window.set_default_response (RESPONSE_ACCEPT);
 942
 943         Gtk::Button noquit_button (msg);
 944         noquit_button.set_name ("EditorGTKButton");
 945
 946         string prompt;
 947
 948         if (_session->snap_name() == _session->name()) {
 949                 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?"),
 950                                         _session->snap_name());
 951         } else {
 952                 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?"),
 953                                         _session->snap_name());
 954         }
 955
 956         prompt_label.set_text (prompt);
 957         prompt_label.set_name (X_("PrompterLabel"));
 958         prompt_label.set_alignment(ALIGN_LEFT, ALIGN_TOP);
 959
 960         dimage->set_alignment(ALIGN_CENTER, ALIGN_TOP);
 961         dhbox.set_homogeneous (false);
 962         dhbox.pack_start (*dimage, false, false, 5);
 963         dhbox.pack_start (prompt_label, true, false, 5);
 964         window.get_vbox()->pack_start (dhbox);
 965
 966         window.set_name (_("Prompter"));
 967         window.set_modal (true);
 968         window.set_resizable (false);
 969
 970         dhbox.show();
 971         prompt_label.show();
 972         dimage->show();
 973         window.show();
 974         window.set_keep_above (true);
 975         window.present ();
 976
 977         ResponseType r = (ResponseType) window.run();
 978
 979         window.hide ();
 980
 981         switch (r) {
 982         case RESPONSE_ACCEPT: // save and get out of here
 983                 return 1;
 984         case RESPONSE_APPLY:  // get out of here
 985                 return 0;
 986         default:
 987                 break;
 988         }
 989
 990         return -1;
 991 }
 992
 993
 994 gint
 995 ARDOUR_UI::every_second ()
 996 {
 997         update_cpu_load ();
 998         update_buffer_load ();
 999         update_disk_space ();
1000         update_timecode_format ();
1001
1002         if (nsm && nsm->is_active ()) {
1003                 nsm->check ();
1004
1005                 if (!_was_dirty && _session->dirty ()) {
1006                         nsm->is_dirty ();
1007                         _was_dirty = true;
1008                 }
1009                 else if (_was_dirty && !_session->dirty ()){
1010                         nsm->is_clean ();
1011                         _was_dirty = false;
1012                 }
1013         }
1014         return TRUE;
1015 }
1016
1017 gint
1018 ARDOUR_UI::every_point_one_seconds ()
1019 {
1020         shuttle_box->update_speed_display ();
1021         RapidScreenUpdate(); /* EMIT_SIGNAL */
1022         return TRUE;
1023 }
1024
1025 gint
1026 ARDOUR_UI::every_point_zero_something_seconds ()
1027 {
1028         // august 2007: actual update frequency: 25Hz (40ms), not 100Hz
1029
1030         SuperRapidScreenUpdate(); /* EMIT_SIGNAL */
1031         if (editor_meter && Config->get_show_editor_meter()) {
1032                 float mpeak = editor_meter->update_meters();
1033                 if (mpeak > editor_meter_max_peak) {
1034                         if (mpeak >= Config->get_meter_peak()) {
1035                                 editor_meter_peak_display.set_name ("meterbridge peakindicator on");
1036                                 editor_meter_peak_display.set_elements((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body));
1037                         }
1038                 }
1039         }
1040         return TRUE;
1041 }
1042
1043 void
1044 ARDOUR_UI::update_sample_rate (framecnt_t)
1045 {
1046         char buf[64];
1047
1048         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::update_sample_rate, ignored)
1049
1050         if (!engine->connected()) {
1051
1052                 snprintf (buf, sizeof (buf), "%s", _("disconnected"));
1053
1054         } else {
1055
1056                 framecnt_t rate = engine->frame_rate();
1057
1058                 if (fmod (rate, 1000.0) != 0.0) {
1059                         snprintf (buf, sizeof (buf), _("JACK: <span foreground=\"green\">%.1f kHz / %4.1f ms</span>"),
1060                                   (float) rate/1000.0f,
1061                                   (engine->frames_per_cycle() / (float) rate) * 1000.0f);
1062                 } else {
1063                         snprintf (buf, sizeof (buf), _("JACK: <span foreground=\"green\">%" PRId64 " kHz / %4.1f ms</span>"),
1064                                   rate/1000,
1065                                   (engine->frames_per_cycle() / (float) rate) * 1000.0f);
1066                 }
1067         }
1068
1069         sample_rate_label.set_markup (buf);
1070 }
1071
1072 void
1073 ARDOUR_UI::update_format ()
1074 {
1075         if (!_session) {
1076                 format_label.set_text ("");
1077                 return;
1078         }
1079
1080         stringstream s;
1081         s << _("File:") << X_(" <span foreground=\"green\">");
1082
1083         switch (_session->config.get_native_file_header_format ()) {
1084         case BWF:
1085                 s << _("BWF");
1086                 break;
1087         case WAVE:
1088                 s << _("WAV");
1089                 break;
1090         case WAVE64:
1091                 s << _("WAV64");
1092                 break;
1093         case CAF:
1094                 s << _("CAF");
1095                 break;
1096         case AIFF:
1097                 s << _("AIFF");
1098                 break;
1099         case iXML:
1100                 s << _("iXML");
1101                 break;
1102         case RF64:
1103                 s << _("RF64");
1104                 break;
1105         }
1106
1107         s << " ";
1108
1109         switch (_session->config.get_native_file_data_format ()) {
1110         case FormatFloat:
1111                 s << _("32-float");
1112                 break;
1113         case FormatInt24:
1114                 s << _("24-int");
1115                 break;
1116         case FormatInt16:
1117                 s << _("16-int");
1118                 break;
1119         }
1120
1121         s << X_("</span>");
1122
1123         format_label.set_markup (s.str ());
1124 }
1125
1126 void
1127 ARDOUR_UI::update_cpu_load ()
1128 {
1129         char buf[64];
1130
1131         /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
1132            should also be changed.
1133         */
1134
1135         float const c = engine->get_cpu_load ();
1136         snprintf (buf, sizeof (buf), _("DSP: <span foreground=\"%s\">%5.1f%%</span>"), c >= 90 ? X_("red") : X_("green"), c);
1137         cpu_load_label.set_markup (buf);
1138 }
1139
1140 void
1141 ARDOUR_UI::update_buffer_load ()
1142 {
1143         char buf[256];
1144
1145         uint32_t const playback = _session ? _session->playback_load () : 100;
1146         uint32_t const capture = _session ? _session->capture_load () : 100;
1147
1148         /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
1149            should also be changed.
1150         */
1151
1152         if (_session) {
1153                 snprintf (
1154                         buf, sizeof (buf),
1155                         _("Buffers: <span foreground=\"green\">p:</span><span foreground=\"%s\">%" PRIu32 "%%</span> "
1156                                    "<span foreground=\"green\">c:</span><span foreground=\"%s\">%" PRIu32 "%%</span>"),
1157                         playback <= 5 ? X_("red") : X_("green"),
1158                         playback,
1159                         capture <= 5 ? X_("red") : X_("green"),
1160                         capture
1161                         );
1162
1163                 buffer_load_label.set_markup (buf);
1164         } else {
1165                 buffer_load_label.set_text ("");
1166         }
1167 }
1168
1169 void
1170 ARDOUR_UI::count_recenabled_streams (Route& route)
1171 {
1172         Track* track = dynamic_cast<Track*>(&route);
1173         if (track && track->record_enabled()) {
1174                 rec_enabled_streams += track->n_inputs().n_total();
1175         }
1176 }
1177
1178 void
1179 ARDOUR_UI::update_disk_space()
1180 {
1181         if (_session == 0) {
1182                 return;
1183         }
1184
1185         boost::optional<framecnt_t> opt_frames = _session->available_capture_duration();
1186         char buf[64];
1187         framecnt_t fr = _session->frame_rate();
1188
1189         if (!opt_frames) {
1190                 /* Available space is unknown */
1191                 snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">Unknown</span>"));
1192         } else if (opt_frames.get_value_or (0) == max_framecnt) {
1193                 snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">24hrs+</span>"));
1194         } else {
1195                 rec_enabled_streams = 0;
1196                 _session->foreach_route (this, &ARDOUR_UI::count_recenabled_streams);
1197
1198                 framecnt_t frames = opt_frames.get_value_or (0);
1199
1200                 if (rec_enabled_streams) {
1201                         frames /= rec_enabled_streams;
1202                 }
1203
1204                 int hrs;
1205                 int mins;
1206                 int secs;
1207
1208                 hrs  = frames / (fr * 3600);
1209
1210                 if (hrs > 24) {
1211                         snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">&gt;24 hrs</span>"));
1212                 } else {
1213                         frames -= hrs * fr * 3600;
1214                         mins = frames / (fr * 60);
1215                         frames -= mins * fr * 60;
1216                         secs = frames / fr;
1217
1218                         bool const low = (hrs == 0 && mins <= 30);
1219
1220                         snprintf (
1221                                 buf, sizeof(buf),
1222                                 _("Disk: <span foreground=\"%s\">%02dh:%02dm:%02ds</span>"),
1223                                 low ? X_("red") : X_("green"),
1224                                 hrs, mins, secs
1225                                 );
1226                 }
1227         }
1228
1229         disk_space_label.set_markup (buf);
1230 }
1231
1232 void
1233 ARDOUR_UI::update_timecode_format ()
1234 {
1235         char buf[64];
1236
1237         if (_session) {
1238                 bool matching;
1239                 TimecodeSlave* tcslave;
1240                 SyncSource sync_src = Config->get_sync_source();
1241
1242                 if ((sync_src == LTC || sync_src == MTC) && (tcslave = dynamic_cast<TimecodeSlave*>(_session->slave())) != 0) {
1243                         matching = (tcslave->apparent_timecode_format() == _session->config.get_timecode_format());
1244                 } else {
1245                         matching = true;
1246                 }
1247
1248                 snprintf (buf, sizeof (buf), S_("Timecode|TC: <span foreground=\"%s\">%s</span>"),
1249                           matching ? X_("green") : X_("red"),
1250                           Timecode::timecode_format_name (_session->config.get_timecode_format()).c_str());
1251         } else {
1252                 snprintf (buf, sizeof (buf), "TC: n/a");
1253         }
1254
1255         timecode_format_label.set_markup (buf);
1256 }
1257
1258 gint
1259 ARDOUR_UI::update_wall_clock ()
1260 {
1261         time_t now;
1262         struct tm *tm_now;
1263         static int last_min = -1;
1264
1265         time (&now);
1266         tm_now = localtime (&now);
1267         if (last_min != tm_now->tm_min) {
1268                 char buf[16];
1269                 sprintf (buf, "%02d:%02d", tm_now->tm_hour, tm_now->tm_min);
1270                 wall_clock_label.set_text (buf);
1271                 last_min = tm_now->tm_min;
1272         }
1273
1274         return TRUE;
1275 }
1276
1277 void
1278 ARDOUR_UI::redisplay_recent_sessions ()
1279 {
1280         std::vector<std::string> session_directories;
1281         RecentSessionsSorter cmp;
1282
1283         recent_session_display.set_model (Glib::RefPtr<TreeModel>(0));
1284         recent_session_model->clear ();
1285
1286         ARDOUR::RecentSessions rs;
1287         ARDOUR::read_recent_sessions (rs);
1288
1289         if (rs.empty()) {
1290                 recent_session_display.set_model (recent_session_model);
1291                 return;
1292         }
1293
1294         // sort them alphabetically
1295         sort (rs.begin(), rs.end(), cmp);
1296
1297         for (ARDOUR::RecentSessions::iterator i = rs.begin(); i != rs.end(); ++i) {
1298                 session_directories.push_back ((*i).second);
1299         }
1300
1301         for (vector<std::string>::const_iterator i = session_directories.begin();
1302                         i != session_directories.end(); ++i)
1303         {
1304                 std::vector<std::string> state_file_paths;
1305
1306                 // now get available states for this session
1307
1308                 get_state_files_in_directory (*i, state_file_paths);
1309
1310                 vector<string*>* states;
1311                 vector<const gchar*> item;
1312                 string fullpath = *i;
1313
1314                 /* remove any trailing / */
1315
1316                 if (fullpath[fullpath.length() - 1] == '/') {
1317                         fullpath = fullpath.substr (0, fullpath.length() - 1);
1318                 }
1319
1320                 /* check whether session still exists */
1321                 if (!Glib::file_test(fullpath.c_str(), Glib::FILE_TEST_EXISTS)) {
1322                         /* session doesn't exist */
1323                         continue;
1324                 }
1325
1326                 /* now get available states for this session */
1327
1328                 if ((states = Session::possible_states (fullpath)) == 0) {
1329                         /* no state file? */
1330                         continue;
1331                 }
1332
1333                 std::vector<string> state_file_names(get_file_names_no_extension (state_file_paths));
1334
1335                 Gtk::TreeModel::Row row = *(recent_session_model->append());
1336
1337                 row[recent_session_columns.visible_name] = Glib::path_get_basename (fullpath);
1338                 row[recent_session_columns.fullpath] = fullpath;
1339                 row[recent_session_columns.tip] = Glib::Markup::escape_text (fullpath);
1340
1341                 if (state_file_names.size() > 1) {
1342
1343                         // add the children
1344
1345                         for (std::vector<std::string>::iterator i2 = state_file_names.begin();
1346                                         i2 != state_file_names.end(); ++i2)
1347                         {
1348
1349                                 Gtk::TreeModel::Row child_row = *(recent_session_model->append (row.children()));
1350
1351                                 child_row[recent_session_columns.visible_name] = *i2;
1352                                 child_row[recent_session_columns.fullpath] = fullpath;
1353                                 child_row[recent_session_columns.tip] = Glib::Markup::escape_text (fullpath);
1354                         }
1355                 }
1356         }
1357
1358         recent_session_display.set_tooltip_column(1); // recent_session_columns.tip
1359         recent_session_display.set_model (recent_session_model);
1360 }
1361
1362 void
1363 ARDOUR_UI::build_session_selector ()
1364 {
1365         session_selector_window = new ArdourDialog (_("Recent Sessions"));
1366
1367         Gtk::ScrolledWindow *scroller = manage (new Gtk::ScrolledWindow);
1368
1369         session_selector_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
1370         session_selector_window->add_button (Stock::OPEN, RESPONSE_ACCEPT);
1371         session_selector_window->set_default_response (RESPONSE_ACCEPT);
1372         recent_session_model = TreeStore::create (recent_session_columns);
1373         recent_session_display.set_model (recent_session_model);
1374         recent_session_display.append_column (_("Recent Sessions"), recent_session_columns.visible_name);
1375         recent_session_display.set_headers_visible (false);
1376         recent_session_display.get_selection()->set_mode (SELECTION_BROWSE);
1377         recent_session_display.signal_row_activated().connect (sigc::mem_fun (*this, &ARDOUR_UI::recent_session_row_activated));
1378
1379         scroller->add (recent_session_display);
1380         scroller->set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1381
1382         session_selector_window->set_name ("SessionSelectorWindow");
1383         session_selector_window->set_size_request (200, 400);
1384         session_selector_window->get_vbox()->pack_start (*scroller);
1385
1386         recent_session_display.show();
1387         scroller->show();
1388 }
1389
1390 void
1391 ARDOUR_UI::recent_session_row_activated (const TreePath& /*path*/, TreeViewColumn* /*col*/)
1392 {
1393         session_selector_window->response (RESPONSE_ACCEPT);
1394 }
1395
1396 void
1397 ARDOUR_UI::open_recent_session ()
1398 {
1399         bool can_return = (_session != 0);
1400
1401         if (session_selector_window == 0) {
1402                 build_session_selector ();
1403         }
1404
1405         redisplay_recent_sessions ();
1406
1407         while (true) {
1408
1409                 ResponseType r = (ResponseType) session_selector_window->run ();
1410
1411                 switch (r) {
1412                 case RESPONSE_ACCEPT:
1413                         break;
1414                 default:
1415                         if (can_return) {
1416                                 session_selector_window->hide();
1417                                 return;
1418                         } else {
1419                                 exit (1);
1420                         }
1421                 }
1422
1423                 if (recent_session_display.get_selection()->count_selected_rows() == 0) {
1424                         continue;
1425                 }
1426
1427                 session_selector_window->hide();
1428
1429                 Gtk::TreeModel::iterator i = recent_session_display.get_selection()->get_selected();
1430
1431                 if (i == recent_session_model->children().end()) {
1432                         return;
1433                 }
1434
1435                 std::string path = (*i)[recent_session_columns.fullpath];
1436                 std::string state = (*i)[recent_session_columns.visible_name];
1437
1438                 _session_is_new = false;
1439
1440                 if (load_session (path, state) == 0) {
1441                         break;
1442                 }
1443
1444                 can_return = false;
1445         }
1446 }
1447
1448 bool
1449 ARDOUR_UI::check_audioengine ()
1450 {
1451         if (engine) {
1452                 if (!engine->connected()) {
1453                         MessageDialog msg (string_compose (
1454                                                    _("%1 is not connected to JACK\n"
1455                                                      "You cannot open or close sessions in this condition"),
1456                                                    PROGRAM_NAME));
1457                         pop_back_splash (msg);
1458                         msg.run ();
1459                         return false;
1460                 }
1461                 return true;
1462         } else {
1463                 return false;
1464         }
1465 }
1466
1467 void
1468 ARDOUR_UI::open_session ()
1469 {
1470         if (!check_audioengine()) {
1471                 return;
1472
1473         }
1474
1475         /* popup selector window */
1476
1477         if (open_session_selector == 0) {
1478
1479                 /* ardour sessions are folders */
1480
1481                 open_session_selector = new Gtk::FileChooserDialog (_("Open Session"), FILE_CHOOSER_ACTION_OPEN);
1482                 open_session_selector->add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
1483                 open_session_selector->add_button (Gtk::Stock::OPEN, Gtk::RESPONSE_ACCEPT);
1484                 open_session_selector->set_default_response(Gtk::RESPONSE_ACCEPT);
1485
1486                 if (_session) {
1487                         string session_parent_dir = Glib::path_get_dirname(_session->path());
1488                         string::size_type last_dir_sep = session_parent_dir.rfind(G_DIR_SEPARATOR);
1489                         session_parent_dir = session_parent_dir.substr(0, last_dir_sep);
1490                         open_session_selector->set_current_folder(session_parent_dir);
1491                 } else {
1492                         open_session_selector->set_current_folder(Config->get_default_session_parent_dir());
1493                 }
1494
1495                 string default_session_folder = Config->get_default_session_parent_dir();
1496                 try {
1497                         /* add_shortcut_folder throws an exception if the folder being added already has a shortcut */
1498                         open_session_selector->add_shortcut_folder (default_session_folder);
1499                 }
1500                 catch (Glib::Error & e) {
1501                         std::cerr << "open_session_selector->add_shortcut_folder (" << default_session_folder << ") threw Glib::Error " << e.what() << std::endl;
1502                 }
1503
1504                 FileFilter session_filter;
1505                 session_filter.add_pattern ("*.ardour");
1506                 session_filter.set_name (string_compose (_("%1 sessions"), PROGRAM_NAME));
1507                 open_session_selector->add_filter (session_filter);
1508                 open_session_selector->set_filter (session_filter);
1509         }
1510
1511         int response = open_session_selector->run();
1512         open_session_selector->hide ();
1513
1514         switch (response) {
1515         case RESPONSE_ACCEPT:
1516                 break;
1517         default:
1518                 open_session_selector->hide();
1519                 return;
1520         }
1521
1522         open_session_selector->hide();
1523         string session_path = open_session_selector->get_filename();
1524         string path, name;
1525         bool isnew;
1526
1527         if (session_path.length() > 0) {
1528                 if (ARDOUR::find_session (session_path, path, name, isnew) == 0) {
1529                         _session_is_new = isnew;
1530                         load_session (path, name);
1531                 }
1532         }
1533 }
1534
1535
1536 void
1537 ARDOUR_UI::session_add_mixed_track (const ChanCount& input, const ChanCount& output, RouteGroup* route_group,
1538                                     uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
1539 {
1540         list<boost::shared_ptr<MidiTrack> > tracks;
1541
1542         if (_session == 0) {
1543                 warning << _("You cannot add a track without a session already loaded.") << endmsg;
1544                 return;
1545         }
1546
1547         try {
1548                 tracks = _session->new_midi_track (input, output, instrument, ARDOUR::Normal, route_group, how_many, name_template);
1549
1550                 if (tracks.size() != how_many) {
1551                         error << string_compose(P_("could not create %1 new mixed track", "could not create %1 new mixed tracks", how_many), how_many) << endmsg;
1552                 }
1553         }
1554
1555         catch (...) {
1556                 MessageDialog msg (*editor,
1557                                    string_compose (_("There are insufficient JACK ports available\n\
1558 to create a new track or bus.\n\
1559 You should save %1, exit and\n\
1560 restart JACK with more ports."), PROGRAM_NAME));
1561                 msg.run ();
1562         }
1563 }
1564
1565
1566 void
1567 ARDOUR_UI::session_add_midi_route (bool disk, RouteGroup* route_group, uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
1568 {
1569         ChanCount one_midi_channel;
1570         one_midi_channel.set (DataType::MIDI, 1);
1571
1572         if (disk) {
1573                 session_add_mixed_track (one_midi_channel, one_midi_channel, route_group, how_many, name_template, instrument);
1574         }
1575 }
1576
1577 void
1578 ARDOUR_UI::session_add_audio_route (
1579         bool track,
1580         int32_t input_channels,
1581         int32_t output_channels,
1582         ARDOUR::TrackMode mode,
1583         RouteGroup* route_group,
1584         uint32_t how_many,
1585         string const & name_template
1586         )
1587 {
1588         list<boost::shared_ptr<AudioTrack> > tracks;
1589         RouteList routes;
1590
1591         if (_session == 0) {
1592                 warning << _("You cannot add a track or bus without a session already loaded.") << endmsg;
1593                 return;
1594         }
1595
1596         try {
1597                 if (track) {
1598                         tracks = _session->new_audio_track (input_channels, output_channels, mode, route_group, how_many, name_template);
1599
1600                         if (tracks.size() != how_many) {
1601                                 error << string_compose (P_("could not create %1 new audio track", "could not create %1 new audio tracks", how_many), how_many)
1602                                       << endmsg;
1603                         }
1604
1605                 } else {
1606
1607                         routes = _session->new_audio_route (input_channels, output_channels, route_group, how_many, name_template);
1608
1609                         if (routes.size() != how_many) {
1610                                 error << string_compose (P_("could not create %1 new audio bus", "could not create %1 new audio busses", how_many), how_many)
1611                                       << endmsg;
1612                         }
1613                 }
1614         }
1615
1616         catch (...) {
1617                 MessageDialog msg (*editor,
1618                                    string_compose (_("There are insufficient JACK ports available\n\
1619 to create a new track or bus.\n\
1620 You should save %1, exit and\n\
1621 restart JACK with more ports."), PROGRAM_NAME));
1622                 pop_back_splash (msg);
1623                 msg.run ();
1624         }
1625 }
1626
1627 void
1628 ARDOUR_UI::transport_goto_start ()
1629 {
1630         if (_session) {
1631                 _session->goto_start();
1632
1633                 /* force displayed area in editor to start no matter
1634                    what "follow playhead" setting is.
1635                 */
1636
1637                 if (editor) {
1638                         editor->center_screen (_session->current_start_frame ());
1639                 }
1640         }
1641 }
1642
1643 void
1644 ARDOUR_UI::transport_goto_zero ()
1645 {
1646         if (_session) {
1647                 _session->request_locate (0);
1648
1649                 /* force displayed area in editor to start no matter
1650                    what "follow playhead" setting is.
1651                 */
1652
1653                 if (editor) {
1654                         editor->reset_x_origin (0);
1655                 }
1656         }
1657 }
1658
1659 void
1660 ARDOUR_UI::transport_goto_wallclock ()
1661 {
1662         if (_session && editor) {
1663
1664                 time_t now;
1665                 struct tm tmnow;
1666                 framepos_t frames;
1667
1668                 time (&now);
1669                 localtime_r (&now, &tmnow);
1670
1671                 frames = tmnow.tm_hour * (60 * 60 * _session->frame_rate());
1672                 frames += tmnow.tm_min * (60 * _session->frame_rate());
1673                 frames += tmnow.tm_sec * _session->frame_rate();
1674
1675                 _session->request_locate (frames, _session->transport_rolling ());
1676
1677                 /* force displayed area in editor to start no matter
1678                    what "follow playhead" setting is.
1679                 */
1680
1681                 if (editor) {
1682                         editor->center_screen (frames);
1683                 }
1684         }
1685 }
1686
1687 void
1688 ARDOUR_UI::transport_goto_end ()
1689 {
1690         if (_session) {
1691                 framepos_t const frame = _session->current_end_frame();
1692                 _session->request_locate (frame);
1693
1694                 /* force displayed area in editor to start no matter
1695                    what "follow playhead" setting is.
1696                 */
1697
1698                 if (editor) {
1699                         editor->center_screen (frame);
1700                 }
1701         }
1702 }
1703
1704 void
1705 ARDOUR_UI::transport_stop ()
1706 {
1707         if (!_session) {
1708                 return;
1709         }
1710
1711         if (_session->is_auditioning()) {
1712                 _session->cancel_audition ();
1713                 return;
1714         }
1715
1716         _session->request_stop (false, true);
1717 }
1718
1719 void
1720 ARDOUR_UI::transport_record (bool roll)
1721 {
1722
1723         if (_session) {
1724                 switch (_session->record_status()) {
1725                 case Session::Disabled:
1726                         if (_session->ntracks() == 0) {
1727                                 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."));
1728                                 msg.run ();
1729                                 return;
1730                         }
1731                         _session->maybe_enable_record ();
1732                         if (roll) {
1733                                 transport_roll ();
1734                         }
1735                         break;
1736                 case Session::Recording:
1737                         if (roll) {
1738                                 _session->request_stop();
1739                         } else {
1740                                 _session->disable_record (false, true);
1741                         }
1742                         break;
1743
1744                 case Session::Enabled:
1745                         _session->disable_record (false, true);
1746                 }
1747         }
1748 }
1749
1750 void
1751 ARDOUR_UI::transport_roll ()
1752 {
1753         if (!_session) {
1754                 return;
1755         }
1756
1757         if (_session->is_auditioning()) {
1758                 return;
1759         }
1760
1761 #if 0
1762         if (_session->config.get_external_sync()) {
1763                 switch (Config->get_sync_source()) {
1764                 case JACK:
1765                         break;
1766                 default:
1767                         /* transport controlled by the master */
1768                         return;
1769                 }
1770         }
1771 #endif
1772
1773         bool rolling = _session->transport_rolling();
1774
1775         if (_session->get_play_loop()) {
1776                 /* XXX it is not possible to just leave seamless loop and keep
1777                    playing at present (nov 4th 2009)
1778                 */
1779                 if (!Config->get_seamless_loop()) {
1780                         _session->request_play_loop (false, true);
1781                 }
1782         } else if (_session->get_play_range () && !Config->get_always_play_range()) {
1783                 /* stop playing a range if we currently are */
1784                 _session->request_play_range (0, true);
1785         }
1786
1787         if (!rolling) {
1788                 _session->request_transport_speed (1.0f);
1789         }
1790 }
1791
1792 bool
1793 ARDOUR_UI::get_smart_mode() const
1794 {
1795         return ( editor->get_smart_mode() );
1796 }
1797
1798
1799 void
1800 ARDOUR_UI::toggle_roll (bool with_abort, bool roll_out_of_bounded_mode)
1801 {
1802
1803         if (!_session) {
1804                 return;
1805         }
1806
1807         if (_session->is_auditioning()) {
1808                 _session->cancel_audition ();
1809                 return;
1810         }
1811
1812         if (_session->config.get_external_sync()) {
1813                 switch (Config->get_sync_source()) {
1814                 case JACK:
1815                         break;
1816                 default:
1817                         /* transport controlled by the master */
1818                         return;
1819                 }
1820         }
1821
1822         bool rolling = _session->transport_rolling();
1823         bool affect_transport = true;
1824
1825         if (rolling && roll_out_of_bounded_mode) {
1826                 /* drop out of loop/range playback but leave transport rolling */
1827                 if (_session->get_play_loop()) {
1828                         if (Config->get_seamless_loop()) {
1829                                 /* the disk buffers contain copies of the loop - we can't
1830                                    just keep playing, so stop the transport. the user
1831                                    can restart as they wish.
1832                                 */
1833                                 affect_transport = true;
1834                         } else {
1835                                 /* disk buffers are normal, so we can keep playing */
1836                                 affect_transport = false;
1837                         }
1838                         _session->request_play_loop (false, true);
1839                 } else if (_session->get_play_range ()) {
1840                         affect_transport = false;
1841                         _session->request_play_range (0, true);
1842                 }
1843         }
1844
1845         if (affect_transport) {
1846                 if (rolling) {
1847                         _session->request_stop (with_abort, true);
1848                 } else {
1849                         if ( Config->get_always_play_range() ) {
1850                                 _session->request_play_range (&editor->get_selection().time, true);
1851                         }
1852
1853                         _session->request_transport_speed (1.0f);
1854                 }
1855         }
1856 }
1857
1858 void
1859 ARDOUR_UI::toggle_session_auto_loop ()
1860 {
1861         Location * looploc = _session->locations()->auto_loop_location();
1862
1863         if (!_session || !looploc) {
1864                 return;
1865         }
1866
1867         if (_session->get_play_loop()) {
1868
1869                 if (_session->transport_rolling()) {
1870
1871                         _session->request_locate (looploc->start(), true);
1872                         _session->request_play_loop (false);
1873
1874                 } else {
1875                         _session->request_play_loop (false);
1876                 }
1877         } else {
1878                 _session->request_play_loop (true);
1879         }
1880
1881         //show the loop markers
1882         looploc->set_hidden (false, this);
1883 }
1884
1885 void
1886 ARDOUR_UI::transport_play_selection ()
1887 {
1888         if (!_session) {
1889                 return;
1890         }
1891
1892         editor->play_selection ();
1893 }
1894
1895 void
1896 ARDOUR_UI::transport_play_preroll ()
1897 {
1898         if (!_session) {
1899                 return;
1900         }
1901         editor->play_with_preroll ();
1902 }
1903
1904 void
1905 ARDOUR_UI::transport_rewind (int option)
1906 {
1907         float current_transport_speed;
1908
1909         if (_session) {
1910                 current_transport_speed = _session->transport_speed();
1911
1912                 if (current_transport_speed >= 0.0f) {
1913                         switch (option) {
1914                         case 0:
1915                                 _session->request_transport_speed (-1.0f);
1916                                 break;
1917                         case 1:
1918                                 _session->request_transport_speed (-4.0f);
1919                                 break;
1920                         case -1:
1921                                 _session->request_transport_speed (-0.5f);
1922                                 break;
1923                         }
1924                 } else {
1925                         /* speed up */
1926                         _session->request_transport_speed (current_transport_speed * 1.5f);
1927                 }
1928         }
1929 }
1930
1931 void
1932 ARDOUR_UI::transport_forward (int option)
1933 {
1934         if (!_session) {
1935                 return;
1936         }
1937
1938         float current_transport_speed = _session->transport_speed();
1939
1940         if (current_transport_speed <= 0.0f) {
1941                 switch (option) {
1942                 case 0:
1943                         _session->request_transport_speed (1.0f);
1944                         break;
1945                 case 1:
1946                         _session->request_transport_speed (4.0f);
1947                         break;
1948                 case -1:
1949                         _session->request_transport_speed (0.5f);
1950                         break;
1951                 }
1952         } else {
1953                 /* speed up */
1954                 _session->request_transport_speed (current_transport_speed * 1.5f);
1955         }
1956 }
1957
1958 void
1959 ARDOUR_UI::toggle_record_enable (uint32_t rid)
1960 {
1961         if (!_session) {
1962                 return;
1963         }
1964
1965         boost::shared_ptr<Route> r;
1966
1967         if ((r = _session->route_by_remote_id (rid)) != 0) {
1968
1969                 Track* t;
1970
1971                 if ((t = dynamic_cast<Track*>(r.get())) != 0) {
1972                         t->set_record_enabled (!t->record_enabled(), this);
1973                 }
1974         }
1975 }
1976
1977 void
1978 ARDOUR_UI::map_transport_state ()
1979 {
1980         if (!_session) {
1981                 auto_loop_button.unset_active_state ();
1982                 play_selection_button.unset_active_state ();
1983                 roll_button.unset_active_state ();
1984                 stop_button.set_active_state (Gtkmm2ext::ExplicitActive);
1985                 return;
1986         }
1987
1988         shuttle_box->map_transport_state ();
1989
1990         float sp = _session->transport_speed();
1991
1992         if (sp != 0.0f) {
1993
1994                 /* we're rolling */
1995
1996                 if (_session->get_play_range()) {
1997
1998                         play_selection_button.set_active_state (Gtkmm2ext::ExplicitActive);
1999                         roll_button.unset_active_state ();
2000                         auto_loop_button.unset_active_state ();
2001
2002                 } else if (_session->get_play_loop ()) {
2003
2004                         auto_loop_button.set_active (true);
2005                         play_selection_button.set_active (false);
2006                         roll_button.set_active (false);
2007
2008                 } else {
2009
2010                         roll_button.set_active (true);
2011                         play_selection_button.set_active (false);
2012                         auto_loop_button.set_active (false);
2013                 }
2014
2015                 if (Config->get_always_play_range()) {
2016                         /* light up both roll and play-selection if they are joined */
2017                         roll_button.set_active (true);
2018                         play_selection_button.set_active (true);
2019                 }
2020
2021                 stop_button.set_active (false);
2022
2023         } else {
2024
2025                 stop_button.set_active (true);
2026                 roll_button.set_active (false);
2027                 play_selection_button.set_active (false);
2028                 auto_loop_button.set_active (false);
2029                 update_disk_space ();
2030         }
2031 }
2032
2033 void
2034 ARDOUR_UI::engine_stopped ()
2035 {
2036         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::engine_stopped)
2037         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, false);
2038         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, true);
2039 }
2040
2041 void
2042 ARDOUR_UI::engine_running ()
2043 {
2044         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::engine_running)
2045         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, true);
2046         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, false);
2047
2048         Glib::RefPtr<Action> action;
2049         const char* action_name = 0;
2050
2051         switch (engine->frames_per_cycle()) {
2052         case 32:
2053                 action_name = X_("JACKLatency32");
2054                 break;
2055         case 64:
2056                 action_name = X_("JACKLatency64");
2057                 break;
2058         case 128:
2059                 action_name = X_("JACKLatency128");
2060                 break;
2061         case 512:
2062                 action_name = X_("JACKLatency512");
2063                 break;
2064         case 1024:
2065                 action_name = X_("JACKLatency1024");
2066                 break;
2067         case 2048:
2068                 action_name = X_("JACKLatency2048");
2069                 break;
2070         case 4096:
2071                 action_name = X_("JACKLatency4096");
2072                 break;
2073         case 8192:
2074                 action_name = X_("JACKLatency8192");
2075                 break;
2076         default:
2077                 /* XXX can we do anything useful ? */
2078                 break;
2079         }
2080
2081         if (action_name) {
2082
2083                 action = ActionManager::get_action (X_("JACK"), action_name);
2084
2085                 if (action) {
2086                         Glib::RefPtr<RadioAction> ract = Glib::RefPtr<RadioAction>::cast_dynamic (action);
2087                         ract->set_active ();
2088                 }
2089         }
2090 }
2091
2092 void
2093 ARDOUR_UI::engine_halted (const char* reason, bool free_reason)
2094 {
2095         if (!Gtkmm2ext::UI::instance()->caller_is_ui_thread()) {
2096                 /* we can't rely on the original string continuing to exist when we are called
2097                    again in the GUI thread, so make a copy and note that we need to
2098                    free it later.
2099                 */
2100                 char *copy = strdup (reason);
2101                 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&ARDOUR_UI::engine_halted, this, copy, true));
2102                 return;
2103         }
2104
2105         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, false);
2106         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, true);
2107
2108         update_sample_rate (0);
2109
2110         string msgstr;
2111
2112         /* if the reason is a non-empty string, it means that the backend was shutdown
2113            rather than just Ardour.
2114         */
2115
2116         if (strlen (reason)) {
2117                 msgstr = string_compose (_("The audio backend (JACK) was shutdown because:\n\n%1"), reason);
2118         } else {
2119                 msgstr = string_compose (_("\
2120 JACK has either been shutdown or it\n\
2121 disconnected %1 because %1\n\
2122 was not fast enough. Try to restart\n\
2123 JACK, reconnect and save the session."), PROGRAM_NAME);
2124         }
2125
2126         MessageDialog msg (*editor, msgstr);
2127         pop_back_splash (msg);
2128         msg.set_keep_above (true);
2129         msg.run ();
2130
2131         if (free_reason) {
2132                 free (const_cast<char*> (reason));
2133         }
2134 }
2135
2136 int32_t
2137 ARDOUR_UI::do_engine_start ()
2138 {
2139         try {
2140                 engine->start();
2141         }
2142
2143         catch (...) {
2144                 engine->stop ();
2145                 error << _("Unable to start the session running")
2146                       << endmsg;
2147                 unload_session ();
2148                 return -2;
2149         }
2150
2151         return 0;
2152 }
2153
2154 void
2155 ARDOUR_UI::update_clocks ()
2156 {
2157         if (!editor || !editor->dragging_playhead()) {
2158                 Clock (_session->audible_frame(), false, editor->get_preferred_edit_position()); /* EMIT_SIGNAL */
2159         }
2160 }
2161
2162 void
2163 ARDOUR_UI::start_clocking ()
2164 {
2165         if (Config->get_super_rapid_clock_update()) {
2166                 clock_signal_connection = SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &ARDOUR_UI::update_clocks));
2167         } else {
2168                 clock_signal_connection = RapidScreenUpdate.connect (sigc::mem_fun(*this, &ARDOUR_UI::update_clocks));
2169         }
2170 }
2171
2172 void
2173 ARDOUR_UI::stop_clocking ()
2174 {
2175         clock_signal_connection.disconnect ();
2176 }
2177
2178 gint
2179 ARDOUR_UI::_blink (void *arg)
2180 {
2181         ((ARDOUR_UI *) arg)->blink ();
2182         return TRUE;
2183 }
2184
2185 void
2186 ARDOUR_UI::blink ()
2187 {
2188         Blink (blink_on = !blink_on); /* EMIT_SIGNAL */
2189 }
2190
2191 void
2192 ARDOUR_UI::start_blinking ()
2193 {
2194         /* Start the blink signal. Everybody with a blinking widget
2195            uses Blink to drive the widget's state.
2196         */
2197
2198         if (blink_timeout_tag < 0) {
2199                 blink_on = false;
2200                 blink_timeout_tag = g_timeout_add (240, _blink, this);
2201         }
2202 }
2203
2204 void
2205 ARDOUR_UI::stop_blinking ()
2206 {
2207         if (blink_timeout_tag >= 0) {
2208                 g_source_remove (blink_timeout_tag);
2209                 blink_timeout_tag = -1;
2210         }
2211 }
2212
2213
2214 /** Ask the user for the name of a new snapshot and then take it.
2215  */
2216
2217 void
2218 ARDOUR_UI::snapshot_session (bool switch_to_it)
2219 {
2220         ArdourPrompter prompter (true);
2221         string snapname;
2222
2223         prompter.set_name ("Prompter");
2224         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2225         prompter.set_title (_("Take Snapshot"));
2226         prompter.set_prompt (_("Name of new snapshot"));
2227
2228         if (!switch_to_it) {
2229                 char timebuf[128];
2230                 time_t n;
2231                 struct tm local_time;
2232
2233                 time (&n);
2234                 localtime_r (&n, &local_time);
2235                 strftime (timebuf, sizeof(timebuf), "%FT%H.%M.%S", &local_time);
2236                 prompter.set_initial_text (timebuf);
2237         }
2238
2239   again:
2240         switch (prompter.run()) {
2241         case RESPONSE_ACCEPT:
2242         {
2243                 prompter.get_result (snapname);
2244
2245                 bool do_save = (snapname.length() != 0);
2246
2247                 if (do_save) {
2248                         char illegal = Session::session_name_is_legal(snapname);
2249                         if (illegal) {
2250                                 MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
2251                                                      "snapshot names may not contain a '%1' character"), illegal));
2252                                 msg.run ();
2253                                 goto again;
2254                         }
2255                 }
2256
2257                 vector<std::string> p;
2258                 get_state_files_in_directory (_session->session_directory().root_path(), p);
2259                 vector<string> n = get_file_names_no_extension (p);
2260                 if (find (n.begin(), n.end(), snapname) != n.end()) {
2261
2262                         ArdourDialog confirm (_("Confirm Snapshot Overwrite"), true);
2263                         Label m (_("A snapshot already exists with that name.  Do you want to overwrite it?"));
2264                         confirm.get_vbox()->pack_start (m, true, true);
2265                         confirm.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2266                         confirm.add_button (_("Overwrite"), Gtk::RESPONSE_ACCEPT);
2267                         confirm.show_all ();
2268                         switch (confirm.run()) {
2269                         case RESPONSE_CANCEL:
2270                                 do_save = false;
2271                         }
2272                 }
2273
2274                 if (do_save) {
2275                         save_state (snapname, switch_to_it);
2276                 }
2277                 break;
2278         }
2279
2280         default:
2281                 break;
2282         }
2283 }
2284
2285 /** Ask the user for a new session name and then rename the session to it.
2286  */
2287
2288 void
2289 ARDOUR_UI::rename_session ()
2290 {
2291         if (!_session) {
2292                 return;
2293         }
2294
2295         ArdourPrompter prompter (true);
2296         string name;
2297
2298         prompter.set_name ("Prompter");
2299         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2300         prompter.set_title (_("Rename Session"));
2301         prompter.set_prompt (_("New session name"));
2302
2303   again:
2304         switch (prompter.run()) {
2305         case RESPONSE_ACCEPT:
2306         {
2307                 prompter.get_result (name);
2308
2309                 bool do_rename = (name.length() != 0);
2310
2311                 if (do_rename) {
2312                         char illegal = Session::session_name_is_legal (name);
2313
2314                         if (illegal) {
2315                                 MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
2316                                                                      "session names may not contain a '%1' character"), illegal));
2317                                 msg.run ();
2318                                 goto again;
2319                         }
2320
2321                         switch (_session->rename (name)) {
2322                         case -1: {
2323                                 MessageDialog msg (_("That name is already in use by another directory/folder. Please try again."));
2324                                 msg.set_position (WIN_POS_MOUSE);
2325                                 msg.run ();
2326                                 goto again;
2327                                 break;
2328                         }
2329                         case 0:
2330                                 break;
2331                         default: {
2332                                 MessageDialog msg (_("Renaming this session failed.\nThings could be seriously messed up at this point"));
2333                                 msg.set_position (WIN_POS_MOUSE);
2334                                 msg.run ();
2335                                 break;
2336                         }
2337                         }
2338                 }
2339
2340                 break;
2341         }
2342
2343         default:
2344                 break;
2345         }
2346 }
2347
2348 void
2349 ARDOUR_UI::save_state (const string & name, bool switch_to_it)
2350 {
2351         XMLNode* node = new XMLNode (X_("UI"));
2352
2353         WM::Manager::instance().add_state (*node);
2354
2355         node->add_child_nocopy (gui_object_state->get_state());
2356
2357         _session->add_extra_xml (*node);
2358
2359         save_state_canfail (name, switch_to_it);
2360 }
2361
2362 int
2363 ARDOUR_UI::save_state_canfail (string name, bool switch_to_it)
2364 {
2365         if (_session) {
2366                 int ret;
2367
2368                 if (name.length() == 0) {
2369                         name = _session->snap_name();
2370                 }
2371
2372                 if ((ret = _session->save_state (name, false, switch_to_it)) != 0) {
2373                         return ret;
2374                 }
2375         }
2376
2377         save_ardour_state (); /* XXX cannot fail? yeah, right ... */
2378         return 0;
2379 }
2380
2381 void
2382 ARDOUR_UI::primary_clock_value_changed ()
2383 {
2384         if (_session) {
2385                 _session->request_locate (primary_clock->current_time ());
2386         }
2387 }
2388
2389 void
2390 ARDOUR_UI::big_clock_value_changed ()
2391 {
2392         if (_session) {
2393                 _session->request_locate (big_clock->current_time ());
2394         }
2395 }
2396
2397 void
2398 ARDOUR_UI::secondary_clock_value_changed ()
2399 {
2400         if (_session) {
2401                 _session->request_locate (secondary_clock->current_time ());
2402         }
2403 }
2404
2405 void
2406 ARDOUR_UI::transport_rec_enable_blink (bool onoff)
2407 {
2408         if (_session == 0) {
2409                 return;
2410         }
2411
2412         if (_session->step_editing()) {
2413                 return;
2414         }
2415
2416         Session::RecordState const r = _session->record_status ();
2417         bool const h = _session->have_rec_enabled_track ();
2418
2419         if (r == Session::Enabled || (r == Session::Recording && !h)) {
2420                 if (onoff) {
2421                         rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
2422                 } else {
2423                         rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
2424                 }
2425         } else if (r == Session::Recording && h) {
2426                 rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
2427         } else {
2428                 rec_button.unset_active_state ();
2429         }
2430 }
2431
2432 void
2433 ARDOUR_UI::save_template ()
2434 {
2435         ArdourPrompter prompter (true);
2436         string name;
2437
2438         if (!check_audioengine()) {
2439                 return;
2440         }
2441
2442         prompter.set_name (X_("Prompter"));
2443         prompter.set_title (_("Save Template"));
2444         prompter.set_prompt (_("Name for template:"));
2445         prompter.set_initial_text(_session->name() + _("-template"));
2446         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2447
2448         switch (prompter.run()) {
2449         case RESPONSE_ACCEPT:
2450                 prompter.get_result (name);
2451
2452                 if (name.length()) {
2453                         _session->save_template (name);
2454                 }
2455                 break;
2456
2457         default:
2458                 break;
2459         }
2460 }
2461
2462 void
2463 ARDOUR_UI::edit_metadata ()
2464 {
2465         SessionMetadataEditor dialog;
2466         dialog.set_session (_session);
2467         editor->ensure_float (dialog);
2468         dialog.run ();
2469 }
2470
2471 void
2472 ARDOUR_UI::import_metadata ()
2473 {
2474         SessionMetadataImporter dialog;
2475         dialog.set_session (_session);
2476         editor->ensure_float (dialog);
2477         dialog.run ();
2478 }
2479
2480 bool
2481 ARDOUR_UI::ask_about_loading_existing_session (const std::string& session_path)
2482 {
2483         std::string str = string_compose (_("This session\n%1\nalready exists. Do you want to open it?"), session_path);
2484
2485         MessageDialog msg (str,
2486                            false,
2487                            Gtk::MESSAGE_WARNING,
2488                            Gtk::BUTTONS_YES_NO,
2489                            true);
2490
2491
2492         msg.set_name (X_("OpenExistingDialog"));
2493         msg.set_title (_("Open Existing Session"));
2494         msg.set_wmclass (X_("existing_session"), PROGRAM_NAME);
2495         msg.set_position (Gtk::WIN_POS_MOUSE);
2496         pop_back_splash (msg);
2497
2498         switch (msg.run()) {
2499         case RESPONSE_YES:
2500                 return true;
2501                 break;
2502         }
2503         return false;
2504 }
2505
2506 int
2507 ARDOUR_UI::build_session_from_nsd (const std::string& session_path, const std::string& session_name)
2508 {
2509         BusProfile bus_profile;
2510
2511         if (nsm || Profile->get_sae()) {
2512
2513                 bus_profile.master_out_channels = 2;
2514                 bus_profile.input_ac = AutoConnectPhysical;
2515                 bus_profile.output_ac = AutoConnectMaster;
2516                 bus_profile.requested_physical_in = 0; // use all available
2517                 bus_profile.requested_physical_out = 0; // use all available
2518
2519         } else {
2520
2521                 /* get settings from advanced section of NSD */
2522
2523                 if (_startup->create_master_bus()) {
2524                         bus_profile.master_out_channels = (uint32_t) _startup->master_channel_count();
2525                 } else {
2526                         bus_profile.master_out_channels = 0;
2527                 }
2528
2529                 if (_startup->connect_inputs()) {
2530                         bus_profile.input_ac = AutoConnectPhysical;
2531                 } else {
2532                         bus_profile.input_ac = AutoConnectOption (0);
2533                 }
2534
2535                 bus_profile.output_ac = AutoConnectOption (0);
2536
2537                 if (_startup->connect_outputs ()) {
2538                         if (_startup->connect_outs_to_master()) {
2539                                 bus_profile.output_ac = AutoConnectMaster;
2540                         } else if (_startup->connect_outs_to_physical()) {
2541                                 bus_profile.output_ac = AutoConnectPhysical;
2542                         }
2543                 }
2544
2545                 bus_profile.requested_physical_in = (uint32_t) _startup->input_limit_count();
2546                 bus_profile.requested_physical_out = (uint32_t) _startup->output_limit_count();
2547         }
2548
2549         if (build_session (session_path, session_name, bus_profile)) {
2550                 return -1;
2551         }
2552
2553         return 0;
2554 }
2555
2556 void
2557 ARDOUR_UI::idle_load (const std::string& path)
2558 {
2559         if (_session) {
2560                 if (Glib::file_test (path, Glib::FILE_TEST_IS_DIR)) {
2561                         /* /path/to/foo => /path/to/foo, foo */
2562                         load_session (path, basename_nosuffix (path));
2563                 } else {
2564                         /* /path/to/foo/foo.ardour => /path/to/foo, foo */
2565                         load_session (Glib::path_get_dirname (path), basename_nosuffix (path));
2566                 }
2567
2568         } else {
2569                 ARDOUR_COMMAND_LINE::session_name = path;
2570         }
2571 }
2572
2573 /** @param quit_on_cancel true if exit() should be called if the user clicks `cancel' in the new session dialog */
2574 int
2575 ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, string load_template)
2576 {
2577         string session_name;
2578         string session_path;
2579         string template_name;
2580         int ret = -1;
2581         bool likely_new = false;
2582
2583         /* deal with any existing DIRTY session now, rather than later. don't
2584          * treat a non-dirty session this way, so that it stays visible
2585          * as we bring up the new session dialog.
2586          */
2587
2588         if (_session && ARDOUR_UI::instance()->video_timeline) {
2589                 ARDOUR_UI::instance()->video_timeline->sync_session_state();
2590         }
2591
2592         if (_session && _session->dirty()) {
2593                 if (unload_session (false)) {
2594                         /* unload cancelled by user */
2595                         return 0;
2596                 }
2597                 ARDOUR_COMMAND_LINE::session_name = "";
2598         }
2599
2600         if (!load_template.empty()) {
2601                 should_be_new = true;
2602                 template_name = load_template;
2603         }
2604
2605         while (ret != 0) {
2606
2607                 if (!ARDOUR_COMMAND_LINE::session_name.empty()) {
2608
2609                         /* if they named a specific statefile, use it, otherwise they are
2610                            just giving a session folder, and we want to use it as is
2611                            to find the session.
2612                         */
2613
2614                         string::size_type suffix = ARDOUR_COMMAND_LINE::session_name.find (statefile_suffix);
2615
2616                         if (suffix != string::npos) {
2617                                 session_path = Glib::path_get_dirname (ARDOUR_COMMAND_LINE::session_name);
2618                                 session_name = ARDOUR_COMMAND_LINE::session_name.substr (0, suffix);
2619                                 session_name = Glib::path_get_basename (session_name);
2620                         } else {
2621                                 session_path = ARDOUR_COMMAND_LINE::session_name;
2622                                 session_name = Glib::path_get_basename (ARDOUR_COMMAND_LINE::session_name);
2623                         }
2624                 } else {
2625                         session_path = "";
2626                         session_name = "";
2627                 }
2628
2629                 delete _startup;
2630                 _startup = new ArdourStartup (should_be_new, session_name, session_path, load_template);
2631
2632                 if (!_startup->ready_without_display()) {
2633                         _startup->present ();
2634                         main().run();
2635                         _startup->hide ();
2636                 }
2637
2638                 switch (_startup->response()) {
2639                 case RESPONSE_OK:
2640                         break;
2641                 default:
2642                         if (quit_on_cancel) {
2643                                 exit (1);
2644                         } else {
2645                                 return ret;
2646                         }
2647                 }
2648
2649                 /* if we run the startup dialog again, offer more than just "new session" */
2650
2651                 should_be_new = false;
2652
2653                 session_name = _startup->session_name (likely_new);
2654
2655                 if (nsm) {
2656                         likely_new = true;
2657                 }
2658
2659                 string::size_type suffix = session_name.find (statefile_suffix);
2660
2661                 if (suffix != string::npos) {
2662                         session_name = session_name.substr (0, suffix);
2663                 }
2664
2665                 /* this shouldn't happen, but we catch it just in case it does */
2666
2667                 if (session_name.empty()) {
2668                         continue;
2669                 }
2670
2671                 if (_startup->use_session_template()) {
2672                         template_name = _startup->session_template_name();
2673                         _session_is_new = true;
2674                 }
2675
2676                 if (session_name[0] == G_DIR_SEPARATOR ||
2677                     (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == G_DIR_SEPARATOR) ||
2678                     (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == G_DIR_SEPARATOR)) {
2679
2680                         /* absolute path or cwd-relative path specified for session name: infer session folder
2681                            from what was given.
2682                         */
2683
2684                         session_path = Glib::path_get_dirname (session_name);
2685                         session_name = Glib::path_get_basename (session_name);
2686
2687                 } else {
2688
2689                         session_path = _startup->session_folder();
2690
2691                         char illegal = Session::session_name_is_legal (session_name);
2692
2693                         if (illegal) {
2694                                 MessageDialog msg (*_startup,
2695                                                    string_compose (_("To ensure compatibility with various systems\n"
2696                                                                      "session names may not contain a '%1' character"),
2697                                                                    illegal));
2698                                 msg.run ();
2699                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2700                                 continue;
2701                         }
2702                 }
2703
2704                 if (create_engine ()) {
2705                         break;
2706                 }
2707
2708                 if (Glib::file_test (session_path, Glib::FileTest (G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))) {
2709
2710                         if (likely_new && !nsm) {
2711
2712                                 std::string existing = Glib::build_filename (session_path, session_name);
2713
2714                                 if (!ask_about_loading_existing_session (existing)) {
2715                                         ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2716                                         continue;
2717                                 }
2718                         }
2719
2720                         _session_is_new = false;
2721
2722                 } else {
2723
2724                         if (!likely_new) {
2725                                 if (_startup) {
2726                                         pop_back_splash (*_startup);
2727                                 } else {
2728                                         hide_splash ();
2729                                 }
2730
2731                                 MessageDialog msg (string_compose (_("There is no existing session at \"%1\""), session_path));
2732                                 msg.run ();
2733                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2734                                 continue;
2735                         }
2736
2737                         char illegal = Session::session_name_is_legal(session_name);
2738                         if (illegal) {
2739                                 pop_back_splash (*_startup);
2740                                 MessageDialog msg (*_startup, string_compose(_("To ensure compatibility with various systems\n"
2741                                                      "session names may not contain a '%1' character"), illegal));
2742                                 msg.run ();
2743                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2744                                 continue;
2745                         }
2746
2747                         _session_is_new = true;
2748                 }
2749
2750                 if (likely_new && template_name.empty()) {
2751
2752                         ret = build_session_from_nsd (session_path, session_name);
2753
2754                 } else {
2755
2756                         ret = load_session (session_path, session_name, template_name);
2757
2758                         if (ret == -2) {
2759                                 /* not connected to the AudioEngine, so quit to avoid an infinite loop */
2760                                 exit (1);
2761                         }
2762
2763                         if (!ARDOUR_COMMAND_LINE::immediate_save.empty()) {
2764                                 _session->save_state (ARDOUR_COMMAND_LINE::immediate_save, false);
2765                                 exit (1);
2766                         }
2767                 }
2768         }
2769
2770         return ret;
2771 }
2772
2773 void
2774 ARDOUR_UI::close_session()
2775 {
2776         if (!check_audioengine()) {
2777                 return;
2778         }
2779
2780         if (unload_session (true)) {
2781                 return;
2782         }
2783
2784         ARDOUR_COMMAND_LINE::session_name = "";
2785
2786         if (get_session_parameters (true, false)) {
2787                 exit (1);
2788         }
2789
2790         goto_editor_window ();
2791 }
2792
2793 /** @param snap_name Snapshot name (without .ardour suffix).
2794  *  @return -2 if the load failed because we are not connected to the AudioEngine.
2795  */
2796 int
2797 ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name, std::string mix_template)
2798 {
2799         Session *new_session;
2800         int unload_status;
2801         int retval = -1;
2802
2803         session_loaded = false;
2804
2805         if (!check_audioengine()) {
2806                 return -2;
2807         }
2808
2809         unload_status = unload_session ();
2810
2811         if (unload_status < 0) {
2812                 goto out;
2813         } else if (unload_status > 0) {
2814                 retval = 0;
2815                 goto out;
2816         }
2817
2818         loading_message (string_compose (_("Please wait while %1 loads your session"), PROGRAM_NAME));
2819
2820         try {
2821                 new_session = new Session (*engine, path, snap_name, 0, mix_template);
2822         }
2823
2824         /* this one is special */
2825
2826         catch (AudioEngine::PortRegistrationFailure& err) {
2827
2828                 MessageDialog msg (err.what(),
2829                                    true,
2830                                    Gtk::MESSAGE_INFO,
2831                                    Gtk::BUTTONS_CLOSE);
2832
2833                 msg.set_title (_("Port Registration Error"));
2834                 msg.set_secondary_text (_("Click the Close button to try again."));
2835                 msg.set_position (Gtk::WIN_POS_CENTER);
2836                 pop_back_splash (msg);
2837                 msg.present ();
2838
2839                 int response = msg.run ();
2840
2841                 msg.hide ();
2842
2843                 switch (response) {
2844                 case RESPONSE_CANCEL:
2845                         exit (1);
2846                 default:
2847                         break;
2848                 }
2849                 goto out;
2850         }
2851
2852         catch (...) {
2853
2854                 MessageDialog msg (string_compose(
2855                                            _("Session \"%1 (snapshot %2)\" did not load successfully"),
2856                                            path, snap_name),
2857                                    true,
2858                                    Gtk::MESSAGE_INFO,
2859                                    BUTTONS_OK);
2860
2861                 msg.set_title (_("Loading Error"));
2862                 msg.set_secondary_text (_("Click the Refresh button to try again."));
2863                 msg.add_button (Stock::REFRESH, 1);
2864                 msg.set_position (Gtk::WIN_POS_CENTER);
2865                 pop_back_splash (msg);
2866                 msg.present ();
2867
2868                 int response = msg.run ();
2869
2870                 switch (response) {
2871                 case 1:
2872                         break;
2873                 default:
2874                         exit (1);
2875                 }
2876
2877                 msg.hide ();
2878
2879                 goto out;
2880         }
2881
2882         {
2883                 list<string> const u = new_session->unknown_processors ();
2884                 if (!u.empty()) {
2885                         MissingPluginDialog d (_session, u);
2886                         d.run ();
2887                 }
2888         }
2889
2890         /* Now the session been created, add the transport controls */
2891         new_session->add_controllable(roll_controllable);
2892         new_session->add_controllable(stop_controllable);
2893         new_session->add_controllable(goto_start_controllable);
2894         new_session->add_controllable(goto_end_controllable);
2895         new_session->add_controllable(auto_loop_controllable);
2896         new_session->add_controllable(play_selection_controllable);
2897         new_session->add_controllable(rec_controllable);
2898
2899         set_session (new_session);
2900
2901         session_loaded = true;
2902
2903         goto_editor_window ();
2904
2905         if (_session) {
2906                 _session->set_clean ();
2907         }
2908
2909         flush_pending ();
2910         retval = 0;
2911
2912   out:
2913         return retval;
2914 }
2915
2916 int
2917 ARDOUR_UI::build_session (const std::string& path, const std::string& snap_name, BusProfile& bus_profile)
2918 {
2919         Session *new_session;
2920         int x;
2921
2922         if (!check_audioengine()) {
2923                 return -1;
2924         }
2925
2926         session_loaded = false;
2927
2928         x = unload_session ();
2929
2930         if (x < 0) {
2931                 return -1;
2932         } else if (x > 0) {
2933                 return 0;
2934         }
2935
2936         _session_is_new = true;
2937
2938         try {
2939                 new_session = new Session (*engine, path, snap_name, &bus_profile);
2940         }
2941
2942         catch (...) {
2943
2944                 MessageDialog msg (string_compose(_("Could not create session in \"%1\""), path));
2945                 pop_back_splash (msg);
2946                 msg.run ();
2947                 return -1;
2948         }
2949
2950         /* Give the new session the default GUI state, if such things exist */
2951
2952         XMLNode* n;
2953         n = Config->instant_xml (X_("Editor"));
2954         if (n) {
2955                 new_session->add_instant_xml (*n, false);
2956         }
2957         n = Config->instant_xml (X_("Mixer"));
2958         if (n) {
2959                 new_session->add_instant_xml (*n, false);
2960         }
2961
2962         /* Put the playhead at 0 and scroll fully left */
2963         n = new_session->instant_xml (X_("Editor"));
2964         if (n) {
2965                 n->add_property (X_("playhead"), X_("0"));
2966                 n->add_property (X_("left-frame"), X_("0"));
2967         }
2968
2969         set_session (new_session);
2970
2971         session_loaded = true;
2972
2973         new_session->save_state(new_session->name());
2974
2975         return 0;
2976 }
2977
2978 void
2979 ARDOUR_UI::launch_chat ()
2980 {
2981 #ifdef __APPLE__
2982         open_uri("http://webchat.freenode.net/?channels=ardour-osx");
2983 #else
2984         open_uri("http://webchat.freenode.net/?channels=ardour");
2985 #endif
2986 }
2987
2988 void
2989 ARDOUR_UI::launch_manual ()
2990 {
2991         PBD::open_uri (Config->get_tutorial_manual_url());
2992 }
2993
2994 void
2995 ARDOUR_UI::launch_reference ()
2996 {
2997         PBD::open_uri (Config->get_reference_manual_url());
2998 }
2999
3000 void
3001 ARDOUR_UI::loading_message (const std::string& msg)
3002 {
3003         if (ARDOUR_COMMAND_LINE::no_splash) {
3004                 return;
3005         }
3006
3007         if (!splash) {
3008                 show_splash ();
3009         }
3010
3011         splash->message (msg);
3012 }
3013
3014 void
3015 ARDOUR_UI::show_splash ()
3016 {
3017         if (splash == 0) {
3018                 try {
3019                         splash = new Splash;
3020                 } catch (...) {
3021                         return;
3022                 }
3023         }
3024
3025         splash->display ();
3026 }
3027
3028 void
3029 ARDOUR_UI::hide_splash ()
3030 {
3031         delete splash;
3032         splash = 0;
3033 }
3034
3035 void
3036 ARDOUR_UI::display_cleanup_results (ARDOUR::CleanupReport& rep, const gchar* list_title, const bool msg_delete)
3037 {
3038         size_t removed;
3039
3040         removed = rep.paths.size();
3041
3042         if (removed == 0) {
3043                 MessageDialog msgd (*editor,
3044                                     _("No files were ready for clean-up"),
3045                                     true,
3046                                     Gtk::MESSAGE_INFO,
3047                                     Gtk::BUTTONS_OK);
3048                 msgd.set_title (_("Clean-up"));
3049                 msgd.set_secondary_text (_("If this seems suprising, \n\
3050 check for any existing snapshots.\n\
3051 These may still include regions that\n\
3052 require some unused files to continue to exist."));
3053
3054                 msgd.run ();
3055                 return;
3056         }
3057
3058         ArdourDialog results (_("Clean-up"), true, false);
3059
3060         struct CleanupResultsModelColumns : public Gtk::TreeModel::ColumnRecord {
3061             CleanupResultsModelColumns() {
3062                     add (visible_name);
3063                     add (fullpath);
3064             }
3065             Gtk::TreeModelColumn<std::string> visible_name;
3066             Gtk::TreeModelColumn<std::string> fullpath;
3067         };
3068
3069
3070         CleanupResultsModelColumns results_columns;
3071         Glib::RefPtr<Gtk::ListStore> results_model;
3072         Gtk::TreeView results_display;
3073
3074         results_model = ListStore::create (results_columns);
3075         results_display.set_model (results_model);
3076         results_display.append_column (list_title, results_columns.visible_name);
3077
3078         results_display.set_name ("CleanupResultsList");
3079         results_display.set_headers_visible (true);
3080         results_display.set_headers_clickable (false);
3081         results_display.set_reorderable (false);
3082
3083         Gtk::ScrolledWindow list_scroller;
3084         Gtk::Label txt;
3085         Gtk::VBox dvbox;
3086         Gtk::HBox dhbox;  // the hbox for the image and text
3087         Gtk::HBox ddhbox; // the hbox we eventually pack into the dialog's vbox
3088         Gtk::Image* dimage = manage (new Gtk::Image(Stock::DIALOG_INFO,  Gtk::ICON_SIZE_DIALOG));
3089
3090         dimage->set_alignment(ALIGN_LEFT, ALIGN_TOP);
3091
3092         const string dead_directory = _session->session_directory().dead_path();
3093
3094         /* subst:
3095            %1 - number of files removed
3096            %2 - location of "dead"
3097            %3 - size of files affected
3098            %4 - prefix for "bytes" to produce sensible results (e.g. mega, kilo, giga)
3099         */
3100
3101         const char* bprefix;
3102         double space_adjusted = 0;
3103
3104         if (rep.space < 1000) {
3105                 bprefix = X_("");
3106                 space_adjusted = rep.space;
3107         } else if (rep.space < 1000000) {
3108                 bprefix = _("kilo");
3109                 space_adjusted = truncf((float)rep.space / 1000.0);
3110         } else if (rep.space < 1000000 * 1000) {
3111                 bprefix = _("mega");
3112                 space_adjusted = truncf((float)rep.space / (1000.0 * 1000.0));
3113         } else {
3114                 bprefix = _("giga");
3115                 space_adjusted = truncf((float)rep.space / (1000.0 * 1000 * 1000.0));
3116         }
3117
3118         if (msg_delete) {
3119                 txt.set_markup (string_compose (P_("\
3120 The following file was deleted from %2,\n\
3121 releasing %3 %4bytes of disk space", "\
3122 The following %1 files were deleted from %2,\n\
3123 releasing %3 %4bytes of disk space", removed),
3124                                         removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
3125         } else {
3126                 txt.set_markup (string_compose (P_("\
3127 The following file was not in use and \n\
3128 has been moved to: %2\n\n\
3129 After a restart of %5\n\n\
3130 <span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
3131 will release an additional %3 %4bytes of disk space.\n", "\
3132 The following %1 files were not in use and \n\
3133 have been moved to: %2\n\n\
3134 After a restart of %5\n\n\
3135 <span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
3136 will release an additional %3 %4bytes of disk space.\n", removed),
3137                                         removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
3138         }
3139
3140         dhbox.pack_start (*dimage, true, false, 5);
3141         dhbox.pack_start (txt, true, false, 5);
3142
3143         for (vector<string>::iterator i = rep.paths.begin(); i != rep.paths.end(); ++i) {
3144                 TreeModel::Row row = *(results_model->append());
3145                 row[results_columns.visible_name] = *i;
3146                 row[results_columns.fullpath] = *i;
3147         }
3148
3149         list_scroller.add (results_display);
3150         list_scroller.set_size_request (-1, 150);
3151         list_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
3152
3153         dvbox.pack_start (dhbox, true, false, 5);
3154         dvbox.pack_start (list_scroller, true, false, 5);
3155         ddhbox.pack_start (dvbox, true, false, 5);
3156
3157         results.get_vbox()->pack_start (ddhbox, true, false, 5);
3158         results.add_button (Stock::CLOSE, RESPONSE_CLOSE);
3159         results.set_default_response (RESPONSE_CLOSE);
3160         results.set_position (Gtk::WIN_POS_MOUSE);
3161
3162         results_display.show();
3163         list_scroller.show();
3164         txt.show();
3165         dvbox.show();
3166         dhbox.show();
3167         ddhbox.show();
3168         dimage->show();
3169
3170         //results.get_vbox()->show();
3171         results.set_resizable (false);
3172
3173         results.run ();
3174
3175 }
3176
3177 void
3178 ARDOUR_UI::cleanup ()
3179 {
3180         if (_session == 0) {
3181                 /* shouldn't happen: menu item is insensitive */
3182                 return;
3183         }
3184
3185
3186         MessageDialog checker (_("Are you sure you want to clean-up?"),
3187                                 true,
3188                                 Gtk::MESSAGE_QUESTION,
3189                                 Gtk::BUTTONS_NONE);
3190
3191         checker.set_title (_("Clean-up"));
3192
3193         checker.set_secondary_text(_("Clean-up is a destructive operation.\n\
3194 ALL undo/redo information will be lost if you clean-up.\n\
3195 Clean-up will move all unused files to a \"dead\" location."));
3196
3197         checker.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3198         checker.add_button (_("Clean-up"), RESPONSE_ACCEPT);
3199         checker.set_default_response (RESPONSE_CANCEL);
3200
3201         checker.set_name (_("CleanupDialog"));
3202         checker.set_wmclass (X_("ardour_cleanup"), PROGRAM_NAME);
3203         checker.set_position (Gtk::WIN_POS_MOUSE);
3204
3205         switch (checker.run()) {
3206         case RESPONSE_ACCEPT:
3207                 break;
3208         default:
3209                 return;
3210         }
3211
3212         ARDOUR::CleanupReport rep;
3213
3214         editor->prepare_for_cleanup ();
3215
3216         /* do not allow flush until a session is reloaded */
3217
3218         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Main"), X_("FlushWastebasket"));
3219         if (act) {
3220                 act->set_sensitive (false);
3221         }
3222
3223         if (_session->cleanup_sources (rep)) {
3224                 editor->finish_cleanup ();
3225                 return;
3226         }
3227
3228         editor->finish_cleanup ();
3229
3230         checker.hide();
3231         display_cleanup_results (rep, _("Cleaned Files"), false);
3232 }
3233
3234 void
3235 ARDOUR_UI::flush_trash ()
3236 {
3237         if (_session == 0) {
3238                 /* shouldn't happen: menu item is insensitive */
3239                 return;
3240         }
3241
3242         ARDOUR::CleanupReport rep;
3243
3244         if (_session->cleanup_trash_sources (rep)) {
3245                 return;
3246         }
3247
3248         display_cleanup_results (rep, _("deleted file"), true);
3249 }
3250
3251 void
3252 ARDOUR_UI::add_route (Gtk::Window* float_window)
3253 {
3254         int count;
3255
3256         if (!_session) {
3257                 return;
3258         }
3259
3260         if (add_route_dialog->is_visible()) {
3261                 /* we're already doing this */
3262                 return;
3263         }
3264
3265         if (float_window) {
3266                 add_route_dialog->set_transient_for (*float_window);
3267         }
3268
3269         ResponseType r = (ResponseType) add_route_dialog->run ();
3270
3271         add_route_dialog->hide();
3272
3273         switch (r) {
3274                 case RESPONSE_ACCEPT:
3275                         break;
3276                 default:
3277                         return;
3278                         break;
3279         }
3280
3281         if ((count = add_route_dialog->count()) <= 0) {
3282                 return;
3283         }
3284
3285         PBD::ScopedConnection idle_connection;
3286
3287         if (count > 8) {
3288                 ARDOUR::GUIIdle.connect (idle_connection, MISSING_INVALIDATOR, boost::bind (&Gtkmm2ext::UI::flush_pending, this), gui_context());
3289         }
3290
3291         string template_path = add_route_dialog->track_template();
3292
3293         if (!template_path.empty()) {
3294                 if (add_route_dialog->name_template_is_default())  {
3295                         _session->new_route_from_template (count, template_path, string());
3296                 } else {
3297                         _session->new_route_from_template (count, template_path, add_route_dialog->name_template());
3298                 }
3299                 return;
3300         }
3301
3302         ChanCount input_chan= add_route_dialog->channels ();
3303         ChanCount output_chan;
3304         string name_template = add_route_dialog->name_template ();
3305         PluginInfoPtr instrument = add_route_dialog->requested_instrument ();
3306         RouteGroup* route_group = add_route_dialog->route_group ();
3307         AutoConnectOption oac = Config->get_output_auto_connect();
3308
3309         if (oac & AutoConnectMaster) {
3310                 output_chan.set (DataType::AUDIO, (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan.n_audio()));
3311                 output_chan.set (DataType::MIDI, 0);
3312         } else {
3313                 output_chan = input_chan;
3314         }
3315
3316         /* XXX do something with name template */
3317
3318         switch (add_route_dialog->type_wanted()) {
3319         case AddRouteDialog::AudioTrack:
3320                 session_add_audio_track (input_chan.n_audio(), output_chan.n_audio(), add_route_dialog->mode(), route_group, count, name_template);
3321                 break;
3322         case AddRouteDialog::MidiTrack:
3323                 session_add_midi_track (route_group, count, name_template, instrument);
3324                 break;
3325         case AddRouteDialog::MixedTrack:
3326                 session_add_mixed_track (input_chan, output_chan, route_group, count, name_template, instrument);
3327                 break;
3328         case AddRouteDialog::AudioBus:
3329                 session_add_audio_bus (input_chan.n_audio(), output_chan.n_audio(), route_group, count, name_template);
3330                 break;
3331         }
3332
3333         /* idle connection will end at scope end */
3334 }
3335
3336 void
3337 ARDOUR_UI::stop_video_server (bool ask_confirm)
3338 {
3339         if (!video_server_process && ask_confirm) {
3340                 warning << _("Video-Server was not launched by Ardour. The request to stop it is ignored.") << endmsg;
3341         }
3342         if (video_server_process) {
3343                 if(ask_confirm) {
3344                         ArdourDialog confirm (_("Stop Video-Server"), true);
3345                         Label m (_("Do you really want to stop the Video Server?"));
3346                         confirm.get_vbox()->pack_start (m, true, true);
3347                         confirm.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
3348                         confirm.add_button (_("Yes, Stop It"), Gtk::RESPONSE_ACCEPT);
3349                         confirm.show_all ();
3350                         if (confirm.run() == RESPONSE_CANCEL) {
3351                                 return;
3352                         }
3353                 }
3354                 delete video_server_process;
3355                 video_server_process =0;
3356         }
3357 }
3358
3359 void
3360 ARDOUR_UI::start_video_server_menu (Gtk::Window* float_window)
3361 {
3362   ARDOUR_UI::start_video_server( float_window, true);
3363 }
3364
3365 bool
3366 ARDOUR_UI::start_video_server (Gtk::Window* float_window, bool popup_msg)
3367 {
3368         if (!_session) {
3369                 return false;
3370         }
3371         if (popup_msg) {
3372                 if (ARDOUR_UI::instance()->video_timeline->check_server()) {
3373                         if (video_server_process) {
3374                                 popup_error(_("The Video Server is already started."));
3375                         } else {
3376                                 popup_error(_("An external Video Server is configured and can be reached. Not starting a new instance."));
3377                         }
3378                 }
3379         }
3380
3381         int firsttime = 0;
3382         while (!ARDOUR_UI::instance()->video_timeline->check_server()) {
3383                 if (firsttime++) {
3384                         warning << _("Could not connect to the Video Server. Start it or configure its access URL in Edit -> Preferences.") << endmsg;
3385                 }
3386                 VideoServerDialog *video_server_dialog = new VideoServerDialog (_session);
3387                 if (float_window) {
3388                         video_server_dialog->set_transient_for (*float_window);
3389                 }
3390
3391                 if (!Config->get_show_video_server_dialog() && firsttime < 2) {
3392                         video_server_dialog->hide();
3393                 } else {
3394                         ResponseType r = (ResponseType) video_server_dialog->run ();
3395                         video_server_dialog->hide();
3396                         if (r != RESPONSE_ACCEPT) { return false; }
3397                         if (video_server_dialog->show_again()) {
3398                                 Config->set_show_video_server_dialog(false);
3399                         }
3400                 }
3401
3402                 std::string icsd_exec = video_server_dialog->get_exec_path();
3403                 std::string icsd_docroot = video_server_dialog->get_docroot();
3404                 if (icsd_docroot.empty()) {icsd_docroot = X_("/");}
3405
3406                 struct stat sb;
3407                 if (!lstat (icsd_docroot.c_str(), &sb) == 0 || !S_ISDIR(sb.st_mode)) {
3408                         warning << _("Specified docroot is not an existing directory.") << endmsg;
3409                         continue;
3410                 }
3411                 if ( (!lstat (icsd_exec.c_str(), &sb) == 0)
3412                      || (sb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)) == 0 ) {
3413                         warning << _("Given Video Server is not an executable file.") << endmsg;
3414                         continue;
3415                 }
3416
3417                 char **argp;
3418                 argp=(char**) calloc(9,sizeof(char*));
3419                 argp[0] = strdup(icsd_exec.c_str());
3420                 argp[1] = strdup("-P");
3421                 argp[2] = (char*) calloc(16,sizeof(char)); snprintf(argp[2], 16, "%s", video_server_dialog->get_listenaddr().c_str());
3422                 argp[3] = strdup("-p");
3423                 argp[4] = (char*) calloc(6,sizeof(char)); snprintf(argp[4], 6, "%i", video_server_dialog->get_listenport());
3424                 argp[5] = strdup("-C");
3425                 argp[6] = (char*) calloc(6,sizeof(char)); snprintf(argp[6], 6, "%i", video_server_dialog->get_cachesize());
3426                 argp[7] = strdup(icsd_docroot.c_str());
3427                 argp[8] = 0;
3428                 stop_video_server();
3429
3430                 if (icsd_docroot == X_("/")) {
3431                         Config->set_video_advanced_setup(false);
3432                 } else {
3433                         std::ostringstream osstream;
3434                         osstream << "http://localhost:" << video_server_dialog->get_listenport() << "/";
3435                         Config->set_video_server_url(osstream.str());
3436                         Config->set_video_server_docroot(icsd_docroot);
3437                         Config->set_video_advanced_setup(true);
3438                 }
3439
3440                 if (video_server_process) {
3441                         delete video_server_process;
3442                 }
3443
3444                 video_server_process = new SystemExec(icsd_exec, argp);
3445                 if (video_server_process->start()) {
3446                         warning << _("Cannot launch the video-server") << endmsg;
3447                         continue;
3448                 }
3449                 int timeout = 120; // 6 sec
3450                 while (!ARDOUR_UI::instance()->video_timeline->check_server()) {
3451                         usleep (50000);
3452                         if (--timeout <= 0 || !video_server_process->is_running()) break;
3453                 }
3454                 if (timeout <= 0) {
3455                         warning << _("Video-server was started but does not respond to requests...") << endmsg;
3456                 } else {
3457                         if (!ARDOUR_UI::instance()->video_timeline->check_server_docroot()) {
3458                                 delete video_server_process;
3459                                 video_server_process = 0;
3460                         }
3461                 }
3462         }
3463         return true;
3464 }
3465
3466 void
3467 ARDOUR_UI::add_video (Gtk::Window* float_window)
3468 {
3469         if (!_session) {
3470                 return;
3471         }
3472
3473         if (!start_video_server(float_window, false)) {
3474                 warning << _("Could not connect to the Video Server. Start it or configure its access URL in Edit -> Preferences.") << endmsg;
3475                 return;
3476         }
3477
3478         if (float_window) {
3479                 add_video_dialog->set_transient_for (*float_window);
3480         }
3481
3482         if (add_video_dialog->is_visible()) {
3483                 /* we're already doing this */
3484                 return;
3485         }
3486
3487         ResponseType r = (ResponseType) add_video_dialog->run ();
3488         add_video_dialog->hide();
3489         if (r != RESPONSE_ACCEPT) { return; }
3490
3491         bool local_file, orig_local_file;
3492         std::string path = add_video_dialog->file_name(local_file);
3493
3494         std::string orig_path = path;
3495         orig_local_file = local_file;
3496
3497         bool auto_set_session_fps = add_video_dialog->auto_set_session_fps();
3498
3499         if (local_file && !Glib::file_test(path, Glib::FILE_TEST_EXISTS)) {
3500                 warning << string_compose(_("could not open %1"), path) << endmsg;
3501                 return;
3502         }
3503         if (!local_file && path.length() == 0) {
3504                 warning << _("no video-file selected") << endmsg;
3505                 return;
3506         }
3507
3508         switch (add_video_dialog->import_option()) {
3509                 case VTL_IMPORT_TRANSCODE:
3510                         {
3511                                 TranscodeVideoDialog *transcode_video_dialog;
3512                                 transcode_video_dialog = new TranscodeVideoDialog (_session, path);
3513                                 ResponseType r = (ResponseType) transcode_video_dialog->run ();
3514                                 transcode_video_dialog->hide();
3515                                 if (r != RESPONSE_ACCEPT) {
3516                                         delete transcode_video_dialog;
3517                                         return;
3518                                 }
3519                                 if (!transcode_video_dialog->get_audiofile().empty()) {
3520                                         editor->embed_audio_from_video(
3521                                                         transcode_video_dialog->get_audiofile(),
3522                                                         video_timeline->get_offset()
3523                                                         );
3524                                 }
3525                                 switch (transcode_video_dialog->import_option()) {
3526                                         case VTL_IMPORT_TRANSCODED:
3527                                                 path = transcode_video_dialog->get_filename();
3528                                                 local_file = true;
3529                                                 break;
3530                                         case VTL_IMPORT_REFERENCE:
3531                                                 break;
3532                                         default:
3533                                                 delete transcode_video_dialog;
3534                                                 return;
3535                                 }
3536                                 delete transcode_video_dialog;
3537                         }
3538                         break;
3539                 default:
3540                 case VTL_IMPORT_NONE:
3541                         break;
3542         }
3543
3544         /* strip _session->session_directory().video_path() from video file if possible */
3545         if (local_file && !path.compare(0, _session->session_directory().video_path().size(), _session->session_directory().video_path())) {
3546                  path=path.substr(_session->session_directory().video_path().size());
3547                  if (path.at(0) == G_DIR_SEPARATOR) {
3548                          path=path.substr(1);
3549                  }
3550         }
3551
3552         video_timeline->set_update_session_fps(auto_set_session_fps);
3553         if (video_timeline->video_file_info(path, local_file)) {
3554                 XMLNode* node = new XMLNode(X_("Videotimeline"));
3555                 node->add_property (X_("Filename"), path);
3556                 node->add_property (X_("AutoFPS"), auto_set_session_fps?X_("1"):X_("0"));
3557                 node->add_property (X_("LocalFile"), local_file?X_("1"):X_("0"));
3558                 if (orig_local_file) {
3559                         node->add_property (X_("OriginalVideoFile"), orig_path);
3560                 } else {
3561                         node->remove_property (X_("OriginalVideoFile"));
3562                 }
3563                 _session->add_extra_xml (*node);
3564                 _session->set_dirty ();
3565
3566                 _session->maybe_update_session_range(
3567                         std::max(video_timeline->get_offset(), (ARDOUR::frameoffset_t) 0),
3568                         std::max(video_timeline->get_offset() + video_timeline->get_duration(), (ARDOUR::frameoffset_t) 0));
3569
3570
3571                 if (add_video_dialog->launch_xjadeo() && local_file) {
3572                         editor->set_xjadeo_sensitive(true);
3573                         editor->toggle_xjadeo_proc(1);
3574                 } else {
3575                         editor->toggle_xjadeo_proc(0);
3576                 }
3577                 editor->toggle_ruler_video(true);
3578         }
3579 }
3580
3581 void
3582 ARDOUR_UI::remove_video ()
3583 {
3584         video_timeline->close_session();
3585         editor->toggle_ruler_video(false);
3586
3587         /* reset state */
3588         video_timeline->set_offset_locked(false);
3589         video_timeline->set_offset(0);
3590
3591         /* delete session state */
3592         XMLNode* node = new XMLNode(X_("Videotimeline"));
3593         _session->add_extra_xml(*node);
3594         node = new XMLNode(X_("Videomonitor"));
3595         _session->add_extra_xml(*node);
3596         stop_video_server();
3597 }
3598
3599 void
3600 ARDOUR_UI::flush_videotimeline_cache (bool localcacheonly)
3601 {
3602         if (localcacheonly) {
3603                 video_timeline->vmon_update();
3604         } else {
3605                 video_timeline->flush_cache();
3606         }
3607         editor->queue_visual_videotimeline_update();
3608 }
3609
3610 XMLNode*
3611 ARDOUR_UI::mixer_settings () const
3612 {
3613         XMLNode* node = 0;
3614
3615         if (_session) {
3616                 node = _session->instant_xml(X_("Mixer"));
3617         } else {
3618                 node = Config->instant_xml(X_("Mixer"));
3619         }
3620
3621         if (!node) {
3622                 node = new XMLNode (X_("Mixer"));
3623         }
3624
3625         return node;
3626 }
3627
3628 XMLNode*
3629 ARDOUR_UI::editor_settings () const
3630 {
3631         XMLNode* node = 0;
3632
3633         if (_session) {
3634                 node = _session->instant_xml(X_("Editor"));
3635         } else {
3636                 node = Config->instant_xml(X_("Editor"));
3637         }
3638
3639         if (!node) {
3640                 if (getenv("ARDOUR_INSTANT_XML_PATH")) {
3641                         node = Config->instant_xml(getenv("ARDOUR_INSTANT_XML_PATH"));
3642                 }
3643         }
3644
3645         if (!node) {
3646                 node = new XMLNode (X_("Editor"));
3647         }
3648
3649         return node;
3650 }
3651
3652 XMLNode*
3653 ARDOUR_UI::keyboard_settings () const
3654 {
3655         XMLNode* node = 0;
3656
3657         node = Config->extra_xml(X_("Keyboard"));
3658
3659         if (!node) {
3660                 node = new XMLNode (X_("Keyboard"));
3661         }
3662
3663         return node;
3664 }
3665
3666 void
3667 ARDOUR_UI::create_xrun_marker (framepos_t where)
3668 {
3669         editor->mouse_add_new_marker (where, false, true);
3670 }
3671
3672 void
3673 ARDOUR_UI::halt_on_xrun_message ()
3674 {
3675         MessageDialog msg (*editor,
3676                            _("Recording was stopped because your system could not keep up."));
3677         msg.run ();
3678 }
3679
3680 void
3681 ARDOUR_UI::xrun_handler (framepos_t where)
3682 {
3683         if (!_session) {
3684                 return;
3685         }
3686
3687         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::xrun_handler, where)
3688
3689         if (_session && Config->get_create_xrun_marker() && _session->actively_recording()) {
3690                 create_xrun_marker(where);
3691         }
3692
3693         if (_session && Config->get_stop_recording_on_xrun() && _session->actively_recording()) {
3694                 halt_on_xrun_message ();
3695         }
3696 }
3697
3698 void
3699 ARDOUR_UI::disk_overrun_handler ()
3700 {
3701         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::disk_overrun_handler)
3702
3703         if (!have_disk_speed_dialog_displayed) {
3704                 have_disk_speed_dialog_displayed = true;
3705                 MessageDialog* msg = new MessageDialog (*editor, string_compose (_("\
3706 The disk system on your computer\n\
3707 was not able to keep up with %1.\n\
3708 \n\
3709 Specifically, it failed to write data to disk\n\
3710 quickly enough to keep up with recording.\n"), PROGRAM_NAME));
3711                 msg->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
3712                 msg->show ();
3713         }
3714 }
3715
3716 void
3717 ARDOUR_UI::disk_underrun_handler ()
3718 {
3719         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::disk_underrun_handler)
3720
3721         if (!have_disk_speed_dialog_displayed) {
3722                 have_disk_speed_dialog_displayed = true;
3723                 MessageDialog* msg = new MessageDialog (
3724                         *editor, string_compose (_("The disk system on your computer\n\
3725 was not able to keep up with %1.\n\
3726 \n\
3727 Specifically, it failed to read data from disk\n\
3728 quickly enough to keep up with playback.\n"), PROGRAM_NAME));
3729                 msg->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
3730                 msg->show ();
3731         }
3732 }
3733
3734 void
3735 ARDOUR_UI::disk_speed_dialog_gone (int /*ignored_response*/, MessageDialog* msg)
3736 {
3737         have_disk_speed_dialog_displayed = false;
3738         delete msg;
3739 }
3740
3741 void
3742 ARDOUR_UI::session_dialog (std::string msg)
3743 {
3744         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::session_dialog, msg)
3745
3746         MessageDialog* d;
3747
3748         if (editor) {
3749                 d = new MessageDialog (*editor, msg, false, MESSAGE_INFO, BUTTONS_OK, true);
3750         } else {
3751                 d = new MessageDialog (msg, false, MESSAGE_INFO, BUTTONS_OK, true);
3752         }
3753
3754         d->show_all ();
3755         d->run ();
3756         delete d;
3757 }
3758
3759 int
3760 ARDOUR_UI::pending_state_dialog ()
3761 {
3762         HBox* hbox = new HBox();
3763         Image* image = new Image (Stock::DIALOG_QUESTION, ICON_SIZE_DIALOG);
3764         ArdourDialog dialog (_("Crash Recovery"), true);
3765         Label  message (string_compose (_("\
3766 This session appears to have been in the\n\
3767 middle of recording when %1 or\n\
3768 the computer was shutdown.\n\
3769 \n\
3770 %1 can recover any captured audio for\n\
3771 you, or it can ignore it. Please decide\n\
3772 what you would like to do.\n"), PROGRAM_NAME));
3773         image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
3774         hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
3775         hbox->pack_end (message, PACK_EXPAND_PADDING, 12);
3776         dialog.get_vbox()->pack_start(*hbox, PACK_EXPAND_PADDING, 6);
3777         dialog.add_button (_("Ignore crash data"), RESPONSE_REJECT);
3778         dialog.add_button (_("Recover from crash"), RESPONSE_ACCEPT);
3779         dialog.set_default_response (RESPONSE_ACCEPT);
3780         dialog.set_position (WIN_POS_CENTER);
3781         message.show();
3782         image->show();
3783         hbox->show();
3784
3785         switch (dialog.run ()) {
3786         case RESPONSE_ACCEPT:
3787                 return 1;
3788         default:
3789                 return 0;
3790         }
3791 }
3792
3793 int
3794 ARDOUR_UI::sr_mismatch_dialog (framecnt_t desired, framecnt_t actual)
3795 {
3796         HBox* hbox = new HBox();
3797         Image* image = new Image (Stock::DIALOG_WARNING, ICON_SIZE_DIALOG);
3798         ArdourDialog dialog (_("Sample Rate Mismatch"), true);
3799         Label  message (string_compose (_("\
3800 This session was created with a sample rate of %1 Hz, but\n\
3801 %2 is currently running at %3 Hz.  If you load this session,\n\
3802 audio may be played at the wrong sample rate.\n"), desired, PROGRAM_NAME, actual));
3803
3804         image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
3805         hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
3806         hbox->pack_end (message, PACK_EXPAND_PADDING, 12);
3807         dialog.get_vbox()->pack_start(*hbox, PACK_EXPAND_PADDING, 6);
3808         dialog.add_button (_("Do not load session"), RESPONSE_REJECT);
3809         dialog.add_button (_("Load session anyway"), RESPONSE_ACCEPT);
3810         dialog.set_default_response (RESPONSE_ACCEPT);
3811         dialog.set_position (WIN_POS_CENTER);
3812         message.show();
3813         image->show();
3814         hbox->show();
3815
3816         switch (dialog.run()) {
3817         case RESPONSE_ACCEPT:
3818                 return 0;
3819         default:
3820                 break;
3821         }
3822
3823         return 1;
3824 }
3825
3826
3827 void
3828 ARDOUR_UI::disconnect_from_jack ()
3829 {
3830         if (engine) {
3831                 if (engine->disconnect_from_jack ()) {
3832                         MessageDialog msg (*editor, _("Could not disconnect from JACK"));
3833                         msg.run ();
3834                 }
3835
3836                 update_sample_rate (0);
3837         }
3838 }
3839
3840 void
3841 ARDOUR_UI::reconnect_to_jack ()
3842 {
3843         if (engine) {
3844                 if (engine->reconnect_to_jack ()) {
3845                         MessageDialog msg (*editor,  _("Could not reconnect to JACK"));
3846                         msg.run ();
3847                 }
3848
3849                 update_sample_rate (0);
3850         }
3851 }
3852
3853 void
3854 ARDOUR_UI::use_config ()
3855 {
3856         XMLNode* node = Config->extra_xml (X_("TransportControllables"));
3857         if (node) {
3858                 set_transport_controllable_state (*node);
3859         }
3860 }
3861
3862 void
3863 ARDOUR_UI::update_transport_clocks (framepos_t pos)
3864 {
3865         if (Config->get_primary_clock_delta_edit_cursor()) {
3866                 primary_clock->set (pos, false, editor->get_preferred_edit_position());
3867         } else {
3868                 primary_clock->set (pos);
3869         }
3870
3871         if (Config->get_secondary_clock_delta_edit_cursor()) {
3872                 secondary_clock->set (pos, false, editor->get_preferred_edit_position());
3873         } else {
3874                 secondary_clock->set (pos);
3875         }
3876
3877         if (big_clock_window) {
3878                 big_clock->set (pos);
3879         }
3880         ARDOUR_UI::instance()->video_timeline->manual_seek_video_monitor(pos);
3881 }
3882
3883 void
3884 ARDOUR_UI::step_edit_status_change (bool yn)
3885 {
3886         // XXX should really store pre-step edit status of things
3887         // we make insensitive
3888
3889         if (yn) {
3890                 rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
3891                 rec_button.set_sensitive (false);
3892         } else {
3893                 rec_button.unset_active_state ();;
3894                 rec_button.set_sensitive (true);
3895         }
3896 }
3897
3898 void
3899 ARDOUR_UI::record_state_changed ()
3900 {
3901         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::record_state_changed);
3902
3903         if (!_session || !big_clock_window) {
3904                 /* why bother - the clock isn't visible */
3905                 return;
3906         }
3907
3908         if (_session->record_status () == Session::Recording && _session->have_rec_enabled_track ()) {
3909                 big_clock->set_active (true);
3910         } else {
3911                 big_clock->set_active (false);
3912         }
3913 }
3914
3915 bool
3916 ARDOUR_UI::first_idle ()
3917 {
3918         if (_session) {
3919                 _session->allow_auto_play (true);
3920         }
3921
3922         if (editor) {
3923                 editor->first_idle();
3924         }
3925
3926         Keyboard::set_can_save_keybindings (true);
3927         return false;
3928 }
3929
3930 void
3931 ARDOUR_UI::store_clock_modes ()
3932 {
3933         XMLNode* node = new XMLNode(X_("ClockModes"));
3934
3935         for (vector<AudioClock*>::iterator x = AudioClock::clocks.begin(); x != AudioClock::clocks.end(); ++x) {
3936                 XMLNode* child = new XMLNode (X_("Clock"));
3937
3938                 child->add_property (X_("name"), (*x)->name());
3939                 child->add_property (X_("mode"), enum_2_string ((*x)->mode()));
3940                 child->add_property (X_("on"), ((*x)->off() ? X_("no") : X_("yes")));
3941
3942                 node->add_child_nocopy (*child);
3943         }
3944
3945         _session->add_extra_xml (*node);
3946         _session->set_dirty ();
3947 }
3948
3949 ARDOUR_UI::TransportControllable::TransportControllable (std::string name, ARDOUR_UI& u, ToggleType tp)
3950         : Controllable (name), ui (u), type(tp)
3951 {
3952
3953 }
3954
3955 void
3956 ARDOUR_UI::TransportControllable::set_value (double val)
3957 {
3958         if (val < 0.5) {
3959                 /* do nothing: these are radio-style actions */
3960                 return;
3961         }
3962
3963         const char *action = 0;
3964
3965         switch (type) {
3966         case Roll:
3967                 action = X_("Roll");
3968                 break;
3969         case Stop:
3970                 action = X_("Stop");
3971                 break;
3972         case GotoStart:
3973                 action = X_("GotoStart");
3974                 break;
3975         case GotoEnd:
3976                 action = X_("GotoEnd");
3977                 break;
3978         case AutoLoop:
3979                 action = X_("Loop");
3980                 break;
3981         case PlaySelection:
3982                 action = X_("PlaySelection");
3983                 break;
3984         case RecordEnable:
3985                 action = X_("Record");
3986                 break;
3987         default:
3988                 break;
3989         }
3990
3991         if (action == 0) {
3992                 return;
3993         }
3994
3995         Glib::RefPtr<Action> act = ActionManager::get_action ("Transport", action);
3996
3997         if (act) {
3998                 act->activate ();
3999         }
4000 }
4001
4002 double
4003 ARDOUR_UI::TransportControllable::get_value (void) const
4004 {
4005         float val = 0.0;
4006
4007         switch (type) {
4008         case Roll:
4009                 break;
4010         case Stop:
4011                 break;
4012         case GotoStart:
4013                 break;
4014         case GotoEnd:
4015                 break;
4016         case AutoLoop:
4017                 break;
4018         case PlaySelection:
4019                 break;
4020         case RecordEnable:
4021                 break;
4022         default:
4023                 break;
4024         }
4025
4026         return val;
4027 }
4028
4029 void
4030 ARDOUR_UI::setup_profile ()
4031 {
4032         if (gdk_screen_width() < 1200 || getenv ("ARDOUR_NARROW_SCREEN")) {
4033                 Profile->set_small_screen ();
4034         }
4035
4036         if (getenv ("ARDOUR_SAE")) {
4037                 Profile->set_sae ();
4038                 Profile->set_single_package ();
4039         }
4040 }
4041
4042 int
4043 ARDOUR_UI::missing_file (Session*s, std::string str, DataType type)
4044 {
4045         MissingFileDialog dialog (s, str, type);
4046
4047         dialog.show ();
4048         dialog.present ();
4049
4050         int result = dialog.run ();
4051         dialog.hide ();
4052
4053         switch (result) {
4054         case RESPONSE_OK:
4055                 break;
4056         default:
4057                 return 1; // quit entire session load
4058         }
4059
4060         result = dialog.get_action ();
4061
4062         return result;
4063 }
4064
4065 int
4066 ARDOUR_UI::ambiguous_file (std::string file, std::string /*path*/, std::vector<std::string> hits)
4067 {
4068         AmbiguousFileDialog dialog (file, hits);
4069
4070         dialog.show ();
4071         dialog.present ();
4072
4073         dialog.run ();
4074         return dialog.get_which ();
4075 }
4076
4077 /** Allocate our thread-local buffers */
4078 void
4079 ARDOUR_UI::get_process_buffers ()
4080 {
4081         _process_thread->get_buffers ();
4082 }
4083
4084 /** Drop our thread-local buffers */
4085 void
4086 ARDOUR_UI::drop_process_buffers ()
4087 {
4088         _process_thread->drop_buffers ();
4089 }
4090
4091 void
4092 ARDOUR_UI::feedback_detected ()
4093 {
4094         _feedback_exists = true;
4095 }
4096
4097 void
4098 ARDOUR_UI::successful_graph_sort ()
4099 {
4100         _feedback_exists = false;
4101 }
4102
4103 void
4104 ARDOUR_UI::midi_panic ()
4105 {
4106         if (_session) {
4107                 _session->midi_panic();
4108         }
4109 }
4110
4111 void
4112 ARDOUR_UI::session_format_mismatch (std::string xml_path, std::string backup_path)
4113 {
4114         const char* start_big = "<span size=\"x-large\" weight=\"bold\">";
4115         const char* end_big = "</span>";
4116         const char* start_mono = "<tt>";
4117         const char* end_mono = "</tt>";
4118
4119         MessageDialog msg (string_compose (_("%4This is a session from an older version of %3%5\n\n"
4120                                              "%3 has copied the old session file\n\n%6%1%7\n\nto\n\n%6%2%7\n\n"
4121                                              "From now on, use the -2000 version with older versions of %3"),
4122                                            xml_path, backup_path, PROGRAM_NAME,
4123                                            start_big, end_big,
4124                                            start_mono, end_mono), true);
4125
4126         msg.run ();
4127 }
4128
4129
4130 void
4131 ARDOUR_UI::reset_peak_display ()
4132 {
4133         if (!_session || !_session->master_out() || !editor_meter) return;
4134         editor_meter->clear_meters();
4135         editor_meter_max_peak = -INFINITY;
4136         editor_meter_peak_display.set_name ("meterbridge peakindicator");
4137         editor_meter_peak_display.set_elements((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body));
4138 }
4139
4140 void
4141 ARDOUR_UI::reset_group_peak_display (RouteGroup* group)
4142 {
4143         if (!_session || !_session->master_out()) return;
4144         if (group == _session->master_out()->route_group()) {
4145                 reset_peak_display ();
4146         }
4147 }
4148
4149 void
4150 ARDOUR_UI::reset_route_peak_display (Route* route)
4151 {
4152         if (!_session || !_session->master_out()) return;
4153         if (_session->master_out().get() == route) {
4154                 reset_peak_display ();
4155         }
4156 }