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 #ifndef PLATFORM_WINDOWS
  31 #include <sys/resource.h>
  32 #endif
  33
  34 #include <stdint.h>
  35 #include <fcntl.h>
  36 #include <signal.h>
  37 #include <unistd.h>
  38 #include <time.h>
  39
  40 #include <glib.h>
  41 #include <glib/gstdio.h>
  42
  43 #include <gtkmm/messagedialog.h>
  44 #include <gtkmm/accelmap.h>
  45
  46 #include "pbd/error.h"
  47 #include "pbd/basename.h"
  48 #include "pbd/compose.h"
  49 #include "pbd/failed_constructor.h"
  50 #include "pbd/enumwriter.h"
  51 #include "pbd/memento_command.h"
  52 #include "pbd/openuri.h"
  53 #include "pbd/file_utils.h"
  54 #include "pbd/localtime_r.h"
  55 #include "pbd/system_exec.h"
  56
  57 #include "gtkmm2ext/application.h"
  58 #include "gtkmm2ext/bindings.h"
  59 #include "gtkmm2ext/gtk_ui.h"
  60 #include "gtkmm2ext/utils.h"
  61 #include "gtkmm2ext/click_box.h"
  62 #include "gtkmm2ext/fastmeter.h"
  63 #include "gtkmm2ext/popup.h"
  64 #include "gtkmm2ext/window_title.h"
  65
  66 #include "ardour/ardour.h"
  67 #include "ardour/audio_backend.h"
  68 #include "ardour/audioengine.h"
  69 #include "ardour/audiofilesource.h"
  70 #include "ardour/automation_watch.h"
  71 #include "ardour/diskstream.h"
  72 #include "ardour/filename_extensions.h"
  73 #include "ardour/filesystem_paths.h"
  74 #include "ardour/port.h"
  75 #include "ardour/plugin_manager.h"
  76 #include "ardour/process_thread.h"
  77 #include "ardour/profile.h"
  78 #include "ardour/recent_sessions.h"
  79 #include "ardour/session_directory.h"
  80 #include "ardour/session_route.h"
  81 #include "ardour/session_state_utils.h"
  82 #include "ardour/session_utils.h"
  83 #include "ardour/slave.h"
  84
  85 #ifdef WINDOWS_VST_SUPPORT
  86 #include <fst.h>
  87 #endif
  88
  89 #include "timecode/time.h"
  90
  91 typedef uint64_t microseconds_t;
  92
  93 #include "about.h"
  94 #include "actions.h"
  95 #include "add_route_dialog.h"
  96 #include "ambiguous_file_dialog.h"
  97 #include "ardour_ui.h"
  98 #include "audio_clock.h"
  99 #include "big_clock_window.h"
 100 #include "bundle_manager.h"
 101 #include "engine_dialog.h"
 102 #include "gain_meter.h"
 103 #include "global_port_matrix.h"
 104 #include "gui_object.h"
 105 #include "gui_thread.h"
 106 #include "keyboard.h"
 107 #include "keyeditor.h"
 108 #include "location_ui.h"
 109 #include "main_clock.h"
 110 #include "missing_file_dialog.h"
 111 #include "missing_plugin_dialog.h"
 112 #include "mixer_ui.h"
 113 #include "mouse_cursors.h"
 114 #include "nsm.h"
 115 #include "opts.h"
 116 #include "pingback.h"
 117 #include "processor_box.h"
 118 #include "prompter.h"
 119 #include "public_editor.h"
 120 #include "rc_option_editor.h"
 121 #include "route_time_axis.h"
 122 #include "route_params_ui.h"
 123 #include "session_dialog.h"
 124 #include "session_metadata_dialog.h"
 125 #include "session_option_editor.h"
 126 #include "shuttle_control.h"
 127 #include "speaker_dialog.h"
 128 #include "splash.h"
 129 #include "startup.h"
 130 #include "theme_manager.h"
 131 #include "time_axis_view_item.h"
 132 #include "utils.h"
 133 #include "video_server_dialog.h"
 134 #include "add_video_dialog.h"
 135 #include "transcode_video_dialog.h"
 136
 137 #include "i18n.h"
 138
 139 using namespace ARDOUR;
 140 using namespace PBD;
 141 using namespace Gtkmm2ext;
 142 using namespace Gtk;
 143 using namespace std;
 144
 145 ARDOUR_UI *ARDOUR_UI::theArdourUI = 0;
 146 UIConfiguration *ARDOUR_UI::ui_config = 0;
 147
 148 sigc::signal<void,bool> ARDOUR_UI::Blink;
 149 sigc::signal<void>      ARDOUR_UI::RapidScreenUpdate;
 150 sigc::signal<void>      ARDOUR_UI::SuperRapidScreenUpdate;
 151 sigc::signal<void, framepos_t, bool, framepos_t> ARDOUR_UI::Clock;
 152 sigc::signal<void>      ARDOUR_UI::CloseAllDialogs;
 153
 154 ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
 155
 156         : Gtkmm2ext::UI (PROGRAM_NAME, argcp, argvp)
 157
 158         , gui_object_state (new GUIObjectState)
 159
 160         , primary_clock (new MainClock (X_("primary"), false, X_("transport"), true, true, true, false, true))
 161         , secondary_clock (new MainClock (X_("secondary"), false, X_("secondary"), true, true, false, false, true))
 162
 163           /* big clock */
 164
 165         , big_clock (new AudioClock (X_("bigclock"), false, "big", true, true, false, false))
 166         , video_timeline(0)
 167
 168           /* start of private members */
 169
 170         , nsm (0)
 171         , _was_dirty (false)
 172         , _mixer_on_top (false)
 173         , first_time_engine_run (true)
 174         , blink_timeout_tag (-1)
 175
 176           /* transport */
 177
 178         , roll_controllable (new TransportControllable ("transport roll", *this, TransportControllable::Roll))
 179         , stop_controllable (new TransportControllable ("transport stop", *this, TransportControllable::Stop))
 180         , goto_start_controllable (new TransportControllable ("transport goto start", *this, TransportControllable::GotoStart))
 181         , goto_end_controllable (new TransportControllable ("transport goto end", *this, TransportControllable::GotoEnd))
 182         , auto_loop_controllable (new TransportControllable ("transport auto loop", *this, TransportControllable::AutoLoop))
 183         , play_selection_controllable (new TransportControllable ("transport play selection", *this, TransportControllable::PlaySelection))
 184         , rec_controllable (new TransportControllable ("transport rec-enable", *this, TransportControllable::RecordEnable))
 185
 186         , auto_return_button (ArdourButton::led_default_elements)
 187         , follow_edits_button (ArdourButton::led_default_elements)
 188         , auto_input_button (ArdourButton::led_default_elements)
 189
 190         , auditioning_alert_button (_("audition"))
 191         , solo_alert_button (_("solo"))
 192         , feedback_alert_button (_("feedback"))
 193
 194         , editor_meter(0)
 195         , editor_meter_peak_display()
 196
 197         , speaker_config_window (X_("speaker-config"), _("Speaker Configuration"))
 198         , theme_manager (X_("theme-manager"), _("Theme Manager"))
 199         , key_editor (X_("key-editor"), _("Key Bindings"))
 200         , rc_option_editor (X_("rc-options-editor"), _("Preferences"))
 201         , add_route_dialog (X_("add-routes"), _("Add Tracks/Busses"))
 202         , about (X_("about"), _("About"))
 203         , location_ui (X_("locations"), _("Locations"))
 204         , route_params (X_("inspector"), _("Tracks and Busses"))
 205         , audio_midi_setup (X_("audio-midi-setup"), _("Audio/MIDI Setup"))
 206         , session_option_editor (X_("session-options-editor"), _("Properties"), boost::bind (&ARDOUR_UI::create_session_option_editor, this))
 207         , add_video_dialog (X_("add-video"), _("Add Tracks/Busses"), boost::bind (&ARDOUR_UI::create_add_video_dialog, this))
 208         , bundle_manager (X_("bundle-manager"), _("Bundle Manager"), boost::bind (&ARDOUR_UI::create_bundle_manager, this))
 209         , big_clock_window (X_("big-clock"), _("Big Clock"), boost::bind (&ARDOUR_UI::create_big_clock_window, this))
 210         , audio_port_matrix (X_("audio-connection-manager"), _("Audio Connections"), boost::bind (&ARDOUR_UI::create_global_port_matrix, this, ARDOUR::DataType::AUDIO))
 211         , midi_port_matrix (X_("midi-connection-manager"), _("MIDI Connections"), boost::bind (&ARDOUR_UI::create_global_port_matrix, this, ARDOUR::DataType::MIDI))
 212
 213         , error_log_button (_("Errors"))
 214
 215         , _status_bar_visibility (X_("status-bar"))
 216         , _feedback_exists (false)
 217 {
 218         Gtkmm2ext::init(localedir);
 219
 220         splash = 0;
 221
 222         if (theArdourUI == 0) {
 223                 theArdourUI = this;
 224         }
 225
 226         ui_config = new UIConfiguration();
 227
 228         ui_config->ParameterChanged.connect (sigc::mem_fun (*this, &ARDOUR_UI::parameter_changed));
 229         boost::function<void (string)> pc (boost::bind (&ARDOUR_UI::parameter_changed, this, _1));
 230         ui_config->map_parameters (pc);
 231
 232         editor = 0;
 233         mixer = 0;
 234         meterbridge = 0;
 235         editor = 0;
 236         _session_is_new = false;
 237         session_selector_window = 0;
 238         last_key_press_time = 0;
 239         video_server_process = 0;
 240         open_session_selector = 0;
 241         have_configure_timeout = false;
 242         have_disk_speed_dialog_displayed = false;
 243         session_loaded = false;
 244         ignore_dual_punch = false;
 245
 246         roll_button.set_controllable (roll_controllable);
 247         stop_button.set_controllable (stop_controllable);
 248         goto_start_button.set_controllable (goto_start_controllable);
 249         goto_end_button.set_controllable (goto_end_controllable);
 250         auto_loop_button.set_controllable (auto_loop_controllable);
 251         play_selection_button.set_controllable (play_selection_controllable);
 252         rec_button.set_controllable (rec_controllable);
 253
 254         roll_button.set_name ("transport button");
 255         stop_button.set_name ("transport button");
 256         goto_start_button.set_name ("transport button");
 257         goto_end_button.set_name ("transport button");
 258         auto_loop_button.set_name ("transport button");
 259         play_selection_button.set_name ("transport button");
 260         rec_button.set_name ("transport recenable button");
 261         midi_panic_button.set_name ("transport button");
 262
 263         goto_start_button.set_tweaks (ArdourButton::ShowClick);
 264         goto_end_button.set_tweaks (ArdourButton::ShowClick);
 265         midi_panic_button.set_tweaks (ArdourButton::ShowClick);
 266
 267         last_configure_time= 0;
 268         last_peak_grab = 0;
 269
 270         ARDOUR::Diskstream::DiskOverrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_overrun_handler, this), gui_context());
 271         ARDOUR::Diskstream::DiskUnderrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_underrun_handler, this), gui_context());
 272
 273         ARDOUR::Session::VersionMismatch.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::session_format_mismatch, this, _1, _2), gui_context());
 274
 275         /* handle dialog requests */
 276
 277         ARDOUR::Session::Dialog.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::session_dialog, this, _1), gui_context());
 278
 279         /* handle pending state with a dialog (PROBLEM: needs to return a value and thus cannot be x-thread) */
 280
 281         ARDOUR::Session::AskAboutPendingState.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::pending_state_dialog, this));
 282
 283         /* handle Audio/MIDI setup when session requires it */
 284
 285         ARDOUR::Session::AudioEngineSetupRequired.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::do_audio_midi_setup, this, _1));
 286
 287         /* handle sr mismatch with a dialog (PROBLEM: needs to return a value and thus cannot be x-thread) */
 288
 289         ARDOUR::Session::AskAboutSampleRateMismatch.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::sr_mismatch_dialog, this, _1, _2));
 290
 291         /* handle requests to quit (coming from JACK session) */
 292
 293         ARDOUR::Session::Quit.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::finish, this), gui_context ());
 294
 295         /* tell the user about feedback */
 296
 297         ARDOUR::Session::FeedbackDetected.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::feedback_detected, this), gui_context ());
 298         ARDOUR::Session::SuccessfulGraphSort.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::successful_graph_sort, this), gui_context ());
 299
 300         /* handle requests to deal with missing files */
 301
 302         ARDOUR::Session::MissingFile.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::missing_file, this, _1, _2, _3));
 303
 304         /* and ambiguous files */
 305
 306         ARDOUR::FileSource::AmbiguousFileName.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::ambiguous_file, this, _1, _2));
 307
 308         /* also plugin scan messages */
 309         ARDOUR::PluginScanMessage.connect (forever_connections, MISSING_INVALIDATOR, boost::bind(&ARDOUR_UI::plugin_scan_dialog, this, _1, _2, _3), gui_context());
 310
 311         ARDOUR::GUIIdle.connect (forever_connections, MISSING_INVALIDATOR, boost::bind(&ARDOUR_UI::gui_idle_handler, this), gui_context());
 312
 313         /* lets get this party started */
 314
 315         setup_gtk_ardour_enums ();
 316         setup_profile ();
 317
 318         SessionEvent::create_per_thread_pool ("GUI", 512);
 319
 320         /* we like keyboards */
 321
 322         keyboard = new ArdourKeyboard(*this);
 323
 324         XMLNode* node = ARDOUR_UI::instance()->keyboard_settings();
 325         if (node) {
 326                 keyboard->set_state (*node, Stateful::loading_state_version);
 327         }
 328
 329         /* we don't like certain modifiers */
 330         Bindings::set_ignored_state (GDK_LOCK_MASK|GDK_MOD2_MASK|GDK_MOD3_MASK);
 331
 332         reset_dpi();
 333
 334         TimeAxisViewItem::set_constant_heights ();
 335
 336         /* Set this up so that our window proxies can register actions */
 337
 338         ActionManager::init ();
 339
 340         /* The following must happen after ARDOUR::init() so that Config is set up */
 341
 342         const XMLNode* ui_xml = Config->extra_xml (X_("UI"));
 343
 344         if (ui_xml) {
 345                 theme_manager.set_state (*ui_xml);
 346                 key_editor.set_state (*ui_xml);
 347                 rc_option_editor.set_state (*ui_xml);
 348                 session_option_editor.set_state (*ui_xml);
 349                 speaker_config_window.set_state (*ui_xml);
 350                 about.set_state (*ui_xml);
 351                 add_route_dialog.set_state (*ui_xml);
 352                 add_video_dialog.set_state (*ui_xml);
 353                 route_params.set_state (*ui_xml);
 354                 bundle_manager.set_state (*ui_xml);
 355                 location_ui.set_state (*ui_xml);
 356                 big_clock_window.set_state (*ui_xml);
 357                 audio_port_matrix.set_state (*ui_xml);
 358                 midi_port_matrix.set_state (*ui_xml);
 359         }
 360
 361         WM::Manager::instance().register_window (&theme_manager);
 362         WM::Manager::instance().register_window (&key_editor);
 363         WM::Manager::instance().register_window (&rc_option_editor);
 364         WM::Manager::instance().register_window (&session_option_editor);
 365         WM::Manager::instance().register_window (&speaker_config_window);
 366         WM::Manager::instance().register_window (&about);
 367         WM::Manager::instance().register_window (&add_route_dialog);
 368         WM::Manager::instance().register_window (&add_video_dialog);
 369         WM::Manager::instance().register_window (&route_params);
 370         WM::Manager::instance().register_window (&audio_midi_setup);
 371         WM::Manager::instance().register_window (&bundle_manager);
 372         WM::Manager::instance().register_window (&location_ui);
 373         WM::Manager::instance().register_window (&big_clock_window);
 374         WM::Manager::instance().register_window (&audio_port_matrix);
 375         WM::Manager::instance().register_window (&midi_port_matrix);
 376
 377         /* We need to instantiate the theme manager because it loads our
 378            theme files. This should really change so that its window
 379            and its functionality are separate
 380         */
 381
 382         (void) theme_manager.get (true);
 383
 384         _process_thread = new ProcessThread ();
 385         _process_thread->init ();
 386
 387         DPIReset.connect (sigc::mem_fun (*this, &ARDOUR_UI::resize_text_widgets));
 388
 389         attach_to_engine ();
 390 }
 391
 392 GlobalPortMatrixWindow*
 393 ARDOUR_UI::create_global_port_matrix (ARDOUR::DataType type)
 394 {
 395         if (!_session) {
 396                 return 0;
 397         }
 398         return new GlobalPortMatrixWindow (_session, type);
 399 }
 400
 401 void
 402 ARDOUR_UI::attach_to_engine ()
 403 {
 404         AudioEngine::instance()->Running.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::engine_running, this), gui_context());
 405         ARDOUR::Port::set_connecting_blocked (ARDOUR_COMMAND_LINE::no_connect_ports);
 406 }
 407
 408 void
 409 ARDOUR_UI::engine_stopped ()
 410 {
 411         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::engine_stopped)
 412         ActionManager::set_sensitive (ActionManager::engine_sensitive_actions, false);
 413         ActionManager::set_sensitive (ActionManager::engine_opposite_sensitive_actions, true);
 414 }
 415
 416 void
 417 ARDOUR_UI::engine_running ()
 418 {
 419         if (first_time_engine_run) {
 420                 post_engine();
 421                 first_time_engine_run = false;
 422         }
 423
 424         update_disk_space ();
 425         update_cpu_load ();
 426         update_sample_rate (AudioEngine::instance()->sample_rate());
 427         update_timecode_format ();
 428 }
 429
 430 void
 431 ARDOUR_UI::engine_halted (const char* reason, bool free_reason)
 432 {
 433         if (!Gtkmm2ext::UI::instance()->caller_is_ui_thread()) {
 434                 /* we can't rely on the original string continuing to exist when we are called
 435                    again in the GUI thread, so make a copy and note that we need to
 436                    free it later.
 437                 */
 438                 char *copy = strdup (reason);
 439                 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&ARDOUR_UI::engine_halted, this, copy, true));
 440                 return;
 441         }
 442
 443         ActionManager::set_sensitive (ActionManager::engine_sensitive_actions, false);
 444         ActionManager::set_sensitive (ActionManager::engine_opposite_sensitive_actions, true);
 445
 446         update_sample_rate (0);
 447
 448         string msgstr;
 449
 450         /* if the reason is a non-empty string, it means that the backend was shutdown
 451            rather than just Ardour.
 452         */
 453
 454         if (strlen (reason)) {
 455                 msgstr = string_compose (_("The audio backend was shutdown because:\n\n%1"), reason);
 456         } else {
 457                 msgstr = string_compose (_("\
 458 The audio backend has either been shutdown or it\n\
 459 disconnected %1 because %1\n\
 460 was not fast enough. Try to restart\n\
 461 the audio backend and save the session."), PROGRAM_NAME);
 462         }
 463
 464         MessageDialog msg (*editor, msgstr);
 465         pop_back_splash (msg);
 466         msg.set_keep_above (true);
 467         msg.run ();
 468
 469         if (free_reason) {
 470                 free (const_cast<char*> (reason));
 471         }
 472 }
 473
 474 void
 475 ARDOUR_UI::post_engine ()
 476 {
 477         /* Things to be done once (and once ONLY) after we have a backend running in the AudioEngine
 478          */
 479
 480         ARDOUR::init_post_engine ();
 481
 482         /* connect to important signals */
 483
 484         AudioEngine::instance()->Stopped.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::engine_stopped, this), gui_context());
 485         AudioEngine::instance()->SampleRateChanged.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::update_sample_rate, this, _1), gui_context());
 486         AudioEngine::instance()->Halted.connect_same_thread (halt_connection, boost::bind (&ARDOUR_UI::engine_halted, this, _1, false));
 487
 488         _tooltips.enable();
 489
 490         ActionManager::load_menus ();
 491
 492         if (setup_windows ()) {
 493                 throw failed_constructor ();
 494         }
 495
 496         /* Do this after setup_windows (), as that's when the _status_bar_visibility is created */
 497         XMLNode* n = Config->extra_xml (X_("UI"));
 498         if (n) {
 499                 _status_bar_visibility.set_state (*n);
 500         }
 501
 502         check_memory_locking();
 503
 504         /* this is the first point at which all the keybindings are available */
 505
 506         if (ARDOUR_COMMAND_LINE::show_key_actions) {
 507                 vector<string> names;
 508                 vector<string> paths;
 509                 vector<string> tooltips;
 510                 vector<string> keys;
 511                 vector<AccelKey> bindings;
 512
 513                 ActionManager::get_all_actions (names, paths, tooltips, keys, bindings);
 514
 515                 vector<string>::iterator n;
 516                 vector<string>::iterator k;
 517                 vector<string>::iterator p;
 518                 for (n = names.begin(), k = keys.begin(), p = paths.begin(); n != names.end(); ++n, ++k, ++p) {
 519                         cout << "Action: '" << (*n) << "' bound to '" << (*k) << "' Path: '" << (*p) << "'" << endl;
 520                 }
 521
 522                 halt_connection.disconnect ();
 523                 AudioEngine::instance()->stop ();
 524                 exit (0);
 525         }
 526
 527         blink_timeout_tag = -1;
 528
 529         /* this being a GUI and all, we want peakfiles */
 530
 531         AudioFileSource::set_build_peakfiles (true);
 532         AudioFileSource::set_build_missing_peakfiles (true);
 533
 534         /* set default clock modes */
 535
 536         if (Profile->get_sae()) {
 537                 primary_clock->set_mode (AudioClock::BBT);
 538                 secondary_clock->set_mode (AudioClock::MinSec);
 539         }  else {
 540                 primary_clock->set_mode (AudioClock::Timecode);
 541                 secondary_clock->set_mode (AudioClock::BBT);
 542         }
 543
 544         /* start the time-of-day-clock */
 545
 546 #ifndef GTKOSX
 547         /* OS X provides a nearly-always visible wallclock, so don't be stupid */
 548         update_wall_clock ();
 549         Glib::signal_timeout().connect_seconds (sigc::mem_fun(*this, &ARDOUR_UI::update_wall_clock), 1);
 550 #endif
 551
 552         Config->ParameterChanged.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::parameter_changed, this, _1), gui_context());
 553         boost::function<void (string)> pc (boost::bind (&ARDOUR_UI::parameter_changed, this, _1));
 554         Config->map_parameters (pc);
 555 }
 556
 557 ARDOUR_UI::~ARDOUR_UI ()
 558 {
 559         if (ui_config->dirty()) {
 560                 ui_config->save_state();
 561         }
 562
 563         stop_video_server();
 564 }
 565
 566 void
 567 ARDOUR_UI::pop_back_splash (Gtk::Window& win)
 568 {
 569         if (Splash::instance()) {
 570                 Splash::instance()->pop_back_for (win);
 571         }
 572 }
 573
 574 gint
 575 ARDOUR_UI::configure_timeout ()
 576 {
 577         if (last_configure_time == 0) {
 578                 /* no configure events yet */
 579                 return true;
 580         }
 581
 582         /* force a gap of 0.5 seconds since the last configure event
 583          */
 584
 585         if (get_microseconds() - last_configure_time < 500000) {
 586                 return true;
 587         } else {
 588                 have_configure_timeout = false;
 589                 save_ardour_state ();
 590                 return false;
 591         }
 592 }
 593
 594 gboolean
 595 ARDOUR_UI::configure_handler (GdkEventConfigure* /*conf*/)
 596 {
 597         if (have_configure_timeout) {
 598                 last_configure_time = get_microseconds();
 599         } else {
 600                 Glib::signal_timeout().connect (sigc::mem_fun(*this, &ARDOUR_UI::configure_timeout), 100);
 601                 have_configure_timeout = true;
 602         }
 603
 604         return FALSE;
 605 }
 606
 607 void
 608 ARDOUR_UI::set_transport_controllable_state (const XMLNode& node)
 609 {
 610         const XMLProperty* prop;
 611
 612         if ((prop = node.property ("roll")) != 0) {
 613                 roll_controllable->set_id (prop->value());
 614         }
 615         if ((prop = node.property ("stop")) != 0) {
 616                 stop_controllable->set_id (prop->value());
 617         }
 618         if ((prop = node.property ("goto-start")) != 0) {
 619                 goto_start_controllable->set_id (prop->value());
 620         }
 621         if ((prop = node.property ("goto-end")) != 0) {
 622                 goto_end_controllable->set_id (prop->value());
 623         }
 624         if ((prop = node.property ("auto-loop")) != 0) {
 625                 auto_loop_controllable->set_id (prop->value());
 626         }
 627         if ((prop = node.property ("play-selection")) != 0) {
 628                 play_selection_controllable->set_id (prop->value());
 629         }
 630         if ((prop = node.property ("rec")) != 0) {
 631                 rec_controllable->set_id (prop->value());
 632         }
 633         if ((prop = node.property ("shuttle")) != 0) {
 634                 shuttle_box->controllable()->set_id (prop->value());
 635         }
 636 }
 637
 638 XMLNode&
 639 ARDOUR_UI::get_transport_controllable_state ()
 640 {
 641         XMLNode* node = new XMLNode(X_("TransportControllables"));
 642         char buf[64];
 643
 644         roll_controllable->id().print (buf, sizeof (buf));
 645         node->add_property (X_("roll"), buf);
 646         stop_controllable->id().print (buf, sizeof (buf));
 647         node->add_property (X_("stop"), buf);
 648         goto_start_controllable->id().print (buf, sizeof (buf));
 649         node->add_property (X_("goto_start"), buf);
 650         goto_end_controllable->id().print (buf, sizeof (buf));
 651         node->add_property (X_("goto_end"), buf);
 652         auto_loop_controllable->id().print (buf, sizeof (buf));
 653         node->add_property (X_("auto_loop"), buf);
 654         play_selection_controllable->id().print (buf, sizeof (buf));
 655         node->add_property (X_("play_selection"), buf);
 656         rec_controllable->id().print (buf, sizeof (buf));
 657         node->add_property (X_("rec"), buf);
 658         shuttle_box->controllable()->id().print (buf, sizeof (buf));
 659         node->add_property (X_("shuttle"), buf);
 660
 661         return *node;
 662 }
 663
 664
 665 gint
 666 ARDOUR_UI::autosave_session ()
 667 {
 668         if (g_main_depth() > 1) {
 669                 /* inside a recursive main loop,
 670                    give up because we may not be able to
 671                    take a lock.
 672                 */
 673                 return 1;
 674         }
 675
 676         if (!Config->get_periodic_safety_backups()) {
 677                 return 1;
 678         }
 679
 680         if (_session) {
 681                 _session->maybe_write_autosave();
 682         }
 683
 684         return 1;
 685 }
 686
 687 void
 688 ARDOUR_UI::update_autosave ()
 689 {
 690         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::update_autosave)
 691
 692         if (_session && _session->dirty()) {
 693                 if (_autosave_connection.connected()) {
 694                         _autosave_connection.disconnect();
 695                 }
 696
 697                 _autosave_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &ARDOUR_UI::autosave_session),
 698                                 Config->get_periodic_safety_backup_interval() * 1000);
 699
 700         } else {
 701                 if (_autosave_connection.connected()) {
 702                         _autosave_connection.disconnect();
 703                 }
 704         }
 705 }
 706
 707 void
 708 ARDOUR_UI::check_announcements ()
 709 {
 710 #ifdef PHONE_HOME
 711         string _annc_filename;
 712
 713 #ifdef __APPLE__
 714         _annc_filename = PROGRAM_NAME "_announcements_osx_";
 715 #else
 716         _annc_filename = PROGRAM_NAME "_announcements_linux_";
 717 #endif
 718         _annc_filename.append (VERSIONSTRING);
 719
 720         std::string path = Glib::build_filename (user_config_directory(), _annc_filename);
 721         std::ifstream announce_file (path.c_str());
 722         if ( announce_file.fail() )
 723                 _announce_string = "";
 724         else {
 725                 std::stringstream oss;
 726                 oss << announce_file.rdbuf();
 727                 _announce_string = oss.str();
 728         }
 729
 730         pingback (VERSIONSTRING, path);
 731 #endif
 732 }
 733
 734 int
 735 ARDOUR_UI::starting ()
 736 {
 737         Application* app = Application::instance ();
 738         const char *nsm_url;
 739         bool brand_new_user = ArdourStartup::required ();
 740
 741         app->ShouldQuit.connect (sigc::mem_fun (*this, &ARDOUR_UI::queue_finish));
 742         app->ShouldLoad.connect (sigc::mem_fun (*this, &ARDOUR_UI::idle_load));
 743
 744         if (ARDOUR_COMMAND_LINE::check_announcements) {
 745                 check_announcements ();
 746         }
 747
 748         app->ready ();
 749
 750         /* we need to create this early because it may need to set the
 751          *  audio backend end up.
 752          */
 753
 754         try {
 755                 audio_midi_setup.get (true);
 756         } catch (...) {
 757                 return -1;
 758         }
 759
 760         if ((nsm_url = g_getenv ("NSM_URL")) != 0) {
 761                 nsm = new NSM_Client;
 762                 if (!nsm->init (nsm_url)) {
 763                         nsm->announce (PROGRAM_NAME, ":dirty:", "ardour3");
 764
 765                         unsigned int i = 0;
 766                         // wait for announce reply from nsm server
 767                         for ( i = 0; i < 5000; ++i) {
 768                                 nsm->check ();
 769
 770                                 Glib::usleep (i);
 771                                 if (nsm->is_active()) {
 772                                         break;
 773                                 }
 774                         }
 775                         if (i == 5000) {
 776                                 error << _("NSM server did not announce itself") << endmsg;
 777                                 return -1;
 778                         }
 779                         // wait for open command from nsm server
 780                         for ( i = 0; i < 5000; ++i) {
 781                                 nsm->check ();
 782                                 Glib::usleep (1000);
 783                                 if (nsm->client_id ()) {
 784                                         break;
 785                                 }
 786                         }
 787
 788                         if (i == 5000) {
 789                                 error << _("NSM: no client ID provided") << endmsg;
 790                                 return -1;
 791                         }
 792
 793                         if (_session && nsm) {
 794                                 _session->set_nsm_state( nsm->is_active() );
 795                         } else {
 796                                 error << _("NSM: no session created") << endmsg;
 797                                 return -1;
 798                         }
 799
 800                         // nsm requires these actions disabled
 801                         vector<string> action_names;
 802                         action_names.push_back("SaveAs");
 803                         action_names.push_back("Rename");
 804                         action_names.push_back("New");
 805                         action_names.push_back("Open");
 806                         action_names.push_back("Recent");
 807                         action_names.push_back("Close");
 808
 809                         for (vector<string>::const_iterator n = action_names.begin(); n != action_names.end(); ++n) {
 810                                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Main"), (*n).c_str());
 811                                 if (act) {
 812                                         act->set_sensitive (false);
 813                                 }
 814                         }
 815
 816                 } else {
 817                         delete nsm;
 818                         nsm = 0;
 819                         error << _("NSM: initialization failed") << endmsg;
 820                         return -1;
 821                 }
 822
 823         } else  {
 824
 825                 if (brand_new_user) {
 826                         ArdourStartup s;
 827                         s.present ();
 828                         main().run();
 829                         s.hide ();
 830                         switch (s.response ()) {
 831                         case Gtk::RESPONSE_OK:
 832                                 break;
 833                         default:
 834                                 return -1;
 835                         }
 836                 }
 837
 838                 /* go get a session */
 839
 840                 const bool new_session_required = (ARDOUR_COMMAND_LINE::new_session || brand_new_user);
 841
 842                 if (get_session_parameters (false, new_session_required, ARDOUR_COMMAND_LINE::load_template)) {
 843                         return -1;
 844                 }
 845         }
 846
 847         use_config ();
 848
 849         goto_editor_window ();
 850
 851         WM::Manager::instance().show_visible ();
 852
 853         /* We have to do this here since goto_editor_window() ends up calling show_all() on the
 854          * editor window, and we may want stuff to be hidden.
 855          */
 856         _status_bar_visibility.update ();
 857
 858         BootMessage (string_compose (_("%1 is ready for use"), PROGRAM_NAME));
 859         return 0;
 860 }
 861
 862 void
 863 ARDOUR_UI::check_memory_locking ()
 864 {
 865 #if defined(__APPLE__) || defined(PLATFORM_WINDOWS)
 866         /* OS X doesn't support mlockall(2), and so testing for memory locking capability there is pointless */
 867         return;
 868 #else // !__APPLE__
 869
 870         XMLNode* memory_warning_node = Config->instant_xml (X_("no-memory-warning"));
 871
 872         if (AudioEngine::instance()->is_realtime() && memory_warning_node == 0) {
 873
 874                 struct rlimit limits;
 875                 int64_t ram;
 876                 long pages, page_size;
 877 #ifdef __FreeBSD__
 878                 size_t pages_len=sizeof(pages);
 879                 if ((page_size = getpagesize()) < 0 ||
 880                                 sysctlbyname("hw.availpages", &pages, &pages_len, NULL, 0))
 881 #else
 882                 if ((page_size = sysconf (_SC_PAGESIZE)) < 0 ||(pages = sysconf (_SC_PHYS_PAGES)) < 0)
 883 #endif
 884                 {
 885                         ram = 0;
 886                 } else {
 887                         ram = (int64_t) pages * (int64_t) page_size;
 888                 }
 889
 890                 if (getrlimit (RLIMIT_MEMLOCK, &limits)) {
 891                         return;
 892                 }
 893
 894                 if (limits.rlim_cur != RLIM_INFINITY) {
 895
 896                         if (ram == 0 || ((double) limits.rlim_cur / ram) < 0.75) {
 897
 898                                 MessageDialog msg (
 899                                         string_compose (
 900                                                 _("WARNING: Your system has a limit for maximum amount of locked memory. "
 901                                                   "This might cause %1 to run out of memory before your system "
 902                                                   "runs out of memory. \n\n"
 903                                                   "You can view the memory limit with 'ulimit -l', "
 904                                                   "and it is normally controlled by %2"),
 905                                                 PROGRAM_NAME,
 906 #ifdef __FreeBSD__
 907                                                 X_("/etc/login.conf")
 908 #else
 909                                                 X_(" /etc/security/limits.conf")
 910 #endif
 911                                         ).c_str());
 912
 913                                 msg.set_default_response (RESPONSE_OK);
 914
 915                                 VBox* vbox = msg.get_vbox();
 916                                 HBox hbox;
 917                                 CheckButton cb (_("Do not show this window again"));
 918                                 hbox.pack_start (cb, true, false);
 919                                 vbox->pack_start (hbox);
 920                                 cb.show();
 921                                 vbox->show();
 922                                 hbox.show ();
 923
 924                                 pop_back_splash (msg);
 925
 926                                 editor->ensure_float (msg);
 927                                 msg.run ();
 928
 929                                 if (cb.get_active()) {
 930                                         XMLNode node (X_("no-memory-warning"));
 931                                         Config->add_instant_xml (node);
 932                                 }
 933                         }
 934                 }
 935         }
 936 #endif // !__APPLE__
 937 }
 938
 939
 940 void
 941 ARDOUR_UI::queue_finish ()
 942 {
 943         Glib::signal_idle().connect (mem_fun (*this, &ARDOUR_UI::idle_finish));
 944 }
 945
 946 bool
 947 ARDOUR_UI::idle_finish ()
 948 {
 949         finish ();
 950         return false; /* do not call again */
 951 }
 952
 953 void
 954 ARDOUR_UI::finish()
 955 {
 956         if (_session) {
 957                 ARDOUR_UI::instance()->video_timeline->sync_session_state();
 958
 959                 if (_session->dirty()) {
 960                         vector<string> actions;
 961                         actions.push_back (_("Don't quit"));
 962                         actions.push_back (_("Just quit"));
 963                         actions.push_back (_("Save and quit"));
 964                         switch (ask_about_saving_session(actions)) {
 965                         case -1:
 966                                 return;
 967                                 break;
 968                         case 1:
 969                                 /* use the default name */
 970                                 if (save_state_canfail ("")) {
 971                                         /* failed - don't quit */
 972                                         MessageDialog msg (*editor,
 973                                                            string_compose (_("\
 974 %1 was unable to save your session.\n\n\
 975 If you still wish to quit, please use the\n\n\
 976 \"Just quit\" option."), PROGRAM_NAME));
 977                                         pop_back_splash(msg);
 978                                         msg.run ();
 979                                         return;
 980                                 }
 981                                 break;
 982                         case 0:
 983                                 break;
 984                         }
 985                 }
 986
 987                 second_connection.disconnect ();
 988                 point_one_second_connection.disconnect ();
 989                 point_zero_something_second_connection.disconnect();
 990         }
 991
 992         delete ARDOUR_UI::instance()->video_timeline;
 993         ARDOUR_UI::instance()->video_timeline = NULL;
 994         stop_video_server();
 995
 996         /* Save state before deleting the session, as that causes some
 997            windows to be destroyed before their visible state can be
 998            saved.
 999         */
1000         save_ardour_state ();
1001
1002         close_all_dialogs ();
1003
1004         loading_message (string_compose (_("Please wait while %1 cleans up..."), PROGRAM_NAME));
1005
1006         if (_session) {
1007                 // _session->set_deletion_in_progress ();
1008                 _session->set_clean ();
1009                 _session->remove_pending_capture_state ();
1010                 delete _session;
1011                 _session = 0;
1012         }
1013
1014         halt_connection.disconnect ();
1015         AudioEngine::instance()->stop ();
1016 #ifdef WINDOWS_VST_SUPPORT
1017         fst_stop_threading();
1018 #endif
1019         quit ();
1020 }
1021
1022 int
1023 ARDOUR_UI::ask_about_saving_session (const vector<string>& actions)
1024 {
1025         ArdourDialog window (_("Unsaved Session"));
1026         Gtk::HBox dhbox;  // the hbox for the image and text
1027         Gtk::Label  prompt_label;
1028         Gtk::Image* dimage = manage (new Gtk::Image(Stock::DIALOG_WARNING,  Gtk::ICON_SIZE_DIALOG));
1029
1030         string msg;
1031
1032         assert (actions.size() >= 3);
1033
1034         window.add_button (actions[0], RESPONSE_REJECT);
1035         window.add_button (actions[1], RESPONSE_APPLY);
1036         window.add_button (actions[2], RESPONSE_ACCEPT);
1037
1038         window.set_default_response (RESPONSE_ACCEPT);
1039
1040         Gtk::Button noquit_button (msg);
1041         noquit_button.set_name ("EditorGTKButton");
1042
1043         string prompt;
1044
1045         if (_session->snap_name() == _session->name()) {
1046                 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?"),
1047                                         _session->snap_name());
1048         } else {
1049                 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?"),
1050                                         _session->snap_name());
1051         }
1052
1053         prompt_label.set_text (prompt);
1054         prompt_label.set_name (X_("PrompterLabel"));
1055         prompt_label.set_alignment(ALIGN_LEFT, ALIGN_TOP);
1056
1057         dimage->set_alignment(ALIGN_CENTER, ALIGN_TOP);
1058         dhbox.set_homogeneous (false);
1059         dhbox.pack_start (*dimage, false, false, 5);
1060         dhbox.pack_start (prompt_label, true, false, 5);
1061         window.get_vbox()->pack_start (dhbox);
1062
1063         window.set_name (_("Prompter"));
1064         window.set_modal (true);
1065         window.set_resizable (false);
1066
1067         dhbox.show();
1068         prompt_label.show();
1069         dimage->show();
1070         window.show();
1071         window.set_keep_above (true);
1072         window.present ();
1073
1074         ResponseType r = (ResponseType) window.run();
1075
1076         window.hide ();
1077
1078         switch (r) {
1079         case RESPONSE_ACCEPT: // save and get out of here
1080                 return 1;
1081         case RESPONSE_APPLY:  // get out of here
1082                 return 0;
1083         default:
1084                 break;
1085         }
1086
1087         return -1;
1088 }
1089
1090
1091 gint
1092 ARDOUR_UI::every_second ()
1093 {
1094         update_cpu_load ();
1095         update_buffer_load ();
1096         update_disk_space ();
1097         update_timecode_format ();
1098
1099         if (nsm && nsm->is_active ()) {
1100                 nsm->check ();
1101
1102                 if (!_was_dirty && _session->dirty ()) {
1103                         nsm->is_dirty ();
1104                         _was_dirty = true;
1105                 }
1106                 else if (_was_dirty && !_session->dirty ()){
1107                         nsm->is_clean ();
1108                         _was_dirty = false;
1109                 }
1110         }
1111         return TRUE;
1112 }
1113
1114 gint
1115 ARDOUR_UI::every_point_one_seconds ()
1116 {
1117         shuttle_box->update_speed_display ();
1118         RapidScreenUpdate(); /* EMIT_SIGNAL */
1119         return TRUE;
1120 }
1121
1122 gint
1123 ARDOUR_UI::every_point_zero_something_seconds ()
1124 {
1125         // august 2007: actual update frequency: 25Hz (40ms), not 100Hz
1126
1127         SuperRapidScreenUpdate(); /* EMIT_SIGNAL */
1128         if (editor_meter && Config->get_show_editor_meter()) {
1129                 float mpeak = editor_meter->update_meters();
1130                 if (mpeak > editor_meter_max_peak) {
1131                         if (mpeak >= Config->get_meter_peak()) {
1132                                 editor_meter_peak_display.set_name ("meterbridge peakindicator on");
1133                                 editor_meter_peak_display.set_elements((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body));
1134                         }
1135                 }
1136         }
1137         return TRUE;
1138 }
1139
1140 void
1141 ARDOUR_UI::update_sample_rate (framecnt_t)
1142 {
1143         char buf[64];
1144
1145         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::update_sample_rate, ignored)
1146
1147         if (!AudioEngine::instance()->connected()) {
1148
1149                 snprintf (buf, sizeof (buf), _("Audio: <span foreground=\"red\">none</span>"));
1150
1151         } else {
1152
1153                 framecnt_t rate = AudioEngine::instance()->sample_rate();
1154
1155                 if (rate == 0) {
1156                         /* no sample rate available */
1157                         snprintf (buf, sizeof (buf), _("Audio: <span foreground=\"red\">none</span>"));
1158                 } else {
1159
1160                         if (fmod (rate, 1000.0) != 0.0) {
1161                                 snprintf (buf, sizeof (buf), _("Audio: <span foreground=\"green\">%.1f kHz / %4.1f ms</span>"),
1162                                           (float) rate / 1000.0f,
1163                                           (AudioEngine::instance()->usecs_per_cycle() / 1000.0f));
1164                         } else {
1165                                 snprintf (buf, sizeof (buf), _("Audio: <span foreground=\"green\">%" PRId64 " kHz / %4.1f ms</span>"),
1166                                           rate/1000,
1167                                           (AudioEngine::instance()->usecs_per_cycle() / 1000.0f));
1168                         }
1169                 }
1170         }
1171         sample_rate_label.set_markup (buf);
1172 }
1173
1174 void
1175 ARDOUR_UI::update_format ()
1176 {
1177         if (!_session) {
1178                 format_label.set_text ("");
1179                 return;
1180         }
1181
1182         stringstream s;
1183         s << _("File:") << X_(" <span foreground=\"green\">");
1184
1185         switch (_session->config.get_native_file_header_format ()) {
1186         case BWF:
1187                 s << _("BWF");
1188                 break;
1189         case WAVE:
1190                 s << _("WAV");
1191                 break;
1192         case WAVE64:
1193                 s << _("WAV64");
1194                 break;
1195         case CAF:
1196                 s << _("CAF");
1197                 break;
1198         case AIFF:
1199                 s << _("AIFF");
1200                 break;
1201         case iXML:
1202                 s << _("iXML");
1203                 break;
1204         case RF64:
1205                 s << _("RF64");
1206                 break;
1207         }
1208
1209         s << " ";
1210
1211         switch (_session->config.get_native_file_data_format ()) {
1212         case FormatFloat:
1213                 s << _("32-float");
1214                 break;
1215         case FormatInt24:
1216                 s << _("24-int");
1217                 break;
1218         case FormatInt16:
1219                 s << _("16-int");
1220                 break;
1221         }
1222
1223         s << X_("</span>");
1224
1225         format_label.set_markup (s.str ());
1226 }
1227
1228 void
1229 ARDOUR_UI::update_cpu_load ()
1230 {
1231         char buf[64];
1232
1233         /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
1234            should also be changed.
1235         */
1236
1237         float const c = AudioEngine::instance()->get_dsp_load ();
1238         snprintf (buf, sizeof (buf), _("DSP: <span foreground=\"%s\">%5.1f%%</span>"), c >= 90 ? X_("red") : X_("green"), c);
1239         cpu_load_label.set_markup (buf);
1240 }
1241
1242 void
1243 ARDOUR_UI::update_buffer_load ()
1244 {
1245         char buf[256];
1246
1247         uint32_t const playback = _session ? _session->playback_load () : 100;
1248         uint32_t const capture = _session ? _session->capture_load () : 100;
1249
1250         /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
1251            should also be changed.
1252         */
1253
1254         if (_session) {
1255                 snprintf (
1256                         buf, sizeof (buf),
1257                         _("Buffers: <span foreground=\"green\">p:</span><span foreground=\"%s\">%" PRIu32 "%%</span> "
1258                                    "<span foreground=\"green\">c:</span><span foreground=\"%s\">%" PRIu32 "%%</span>"),
1259                         playback <= 5 ? X_("red") : X_("green"),
1260                         playback,
1261                         capture <= 5 ? X_("red") : X_("green"),
1262                         capture
1263                         );
1264
1265                 buffer_load_label.set_markup (buf);
1266         } else {
1267                 buffer_load_label.set_text ("");
1268         }
1269 }
1270
1271 void
1272 ARDOUR_UI::count_recenabled_streams (Route& route)
1273 {
1274         Track* track = dynamic_cast<Track*>(&route);
1275         if (track && track->record_enabled()) {
1276                 rec_enabled_streams += track->n_inputs().n_total();
1277         }
1278 }
1279
1280 void
1281 ARDOUR_UI::update_disk_space()
1282 {
1283         if (_session == 0) {
1284                 return;
1285         }
1286
1287         boost::optional<framecnt_t> opt_frames = _session->available_capture_duration();
1288         char buf[64];
1289         framecnt_t fr = _session->frame_rate();
1290
1291         if (fr == 0) {
1292                 /* skip update - no SR available */
1293                 return;
1294         }
1295
1296         if (!opt_frames) {
1297                 /* Available space is unknown */
1298                 snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">Unknown</span>"));
1299         } else if (opt_frames.get_value_or (0) == max_framecnt) {
1300                 snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">24hrs+</span>"));
1301         } else {
1302                 rec_enabled_streams = 0;
1303                 _session->foreach_route (this, &ARDOUR_UI::count_recenabled_streams);
1304
1305                 framecnt_t frames = opt_frames.get_value_or (0);
1306
1307                 if (rec_enabled_streams) {
1308                         frames /= rec_enabled_streams;
1309                 }
1310
1311                 int hrs;
1312                 int mins;
1313                 int secs;
1314
1315                 hrs  = frames / (fr * 3600);
1316
1317                 if (hrs > 24) {
1318                         snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">&gt;24 hrs</span>"));
1319                 } else {
1320                         frames -= hrs * fr * 3600;
1321                         mins = frames / (fr * 60);
1322                         frames -= mins * fr * 60;
1323                         secs = frames / fr;
1324
1325                         bool const low = (hrs == 0 && mins <= 30);
1326
1327                         snprintf (
1328                                 buf, sizeof(buf),
1329                                 _("Disk: <span foreground=\"%s\">%02dh:%02dm:%02ds</span>"),
1330                                 low ? X_("red") : X_("green"),
1331                                 hrs, mins, secs
1332                                 );
1333                 }
1334         }
1335
1336         disk_space_label.set_markup (buf);
1337 }
1338
1339 void
1340 ARDOUR_UI::update_timecode_format ()
1341 {
1342         char buf[64];
1343
1344         if (_session) {
1345                 bool matching;
1346                 TimecodeSlave* tcslave;
1347                 SyncSource sync_src = Config->get_sync_source();
1348
1349                 if ((sync_src == LTC || sync_src == MTC) && (tcslave = dynamic_cast<TimecodeSlave*>(_session->slave())) != 0) {
1350                         matching = (tcslave->apparent_timecode_format() == _session->config.get_timecode_format());
1351                 } else {
1352                         matching = true;
1353                 }
1354
1355                 snprintf (buf, sizeof (buf), S_("Timecode|TC: <span foreground=\"%s\">%s</span>"),
1356                           matching ? X_("green") : X_("red"),
1357                           Timecode::timecode_format_name (_session->config.get_timecode_format()).c_str());
1358         } else {
1359                 snprintf (buf, sizeof (buf), "TC: n/a");
1360         }
1361
1362         timecode_format_label.set_markup (buf);
1363 }
1364
1365 gint
1366 ARDOUR_UI::update_wall_clock ()
1367 {
1368         time_t now;
1369         struct tm *tm_now;
1370         static int last_min = -1;
1371
1372         time (&now);
1373         tm_now = localtime (&now);
1374         if (last_min != tm_now->tm_min) {
1375                 char buf[16];
1376                 sprintf (buf, "%02d:%02d", tm_now->tm_hour, tm_now->tm_min);
1377                 wall_clock_label.set_text (buf);
1378                 last_min = tm_now->tm_min;
1379         }
1380
1381         return TRUE;
1382 }
1383
1384 void
1385 ARDOUR_UI::redisplay_recent_sessions ()
1386 {
1387         std::vector<std::string> session_directories;
1388         RecentSessionsSorter cmp;
1389
1390         recent_session_display.set_model (Glib::RefPtr<TreeModel>(0));
1391         recent_session_model->clear ();
1392
1393         ARDOUR::RecentSessions rs;
1394         ARDOUR::read_recent_sessions (rs);
1395
1396         if (rs.empty()) {
1397                 recent_session_display.set_model (recent_session_model);
1398                 return;
1399         }
1400
1401         // sort them alphabetically
1402         sort (rs.begin(), rs.end(), cmp);
1403
1404         for (ARDOUR::RecentSessions::iterator i = rs.begin(); i != rs.end(); ++i) {
1405                 session_directories.push_back ((*i).second);
1406         }
1407
1408         for (vector<std::string>::const_iterator i = session_directories.begin();
1409                         i != session_directories.end(); ++i)
1410         {
1411                 std::vector<std::string> state_file_paths;
1412
1413                 // now get available states for this session
1414
1415                 get_state_files_in_directory (*i, state_file_paths);
1416
1417                 vector<string*>* states;
1418                 vector<const gchar*> item;
1419                 string fullpath = *i;
1420
1421                 /* remove any trailing / */
1422
1423                 if (fullpath[fullpath.length() - 1] == '/') {
1424                         fullpath = fullpath.substr (0, fullpath.length() - 1);
1425                 }
1426
1427                 /* check whether session still exists */
1428                 if (!Glib::file_test(fullpath.c_str(), Glib::FILE_TEST_EXISTS)) {
1429                         /* session doesn't exist */
1430                         continue;
1431                 }
1432
1433                 /* now get available states for this session */
1434
1435                 if ((states = Session::possible_states (fullpath)) == 0) {
1436                         /* no state file? */
1437                         continue;
1438                 }
1439
1440                 std::vector<string> state_file_names(get_file_names_no_extension (state_file_paths));
1441
1442                 Gtk::TreeModel::Row row = *(recent_session_model->append());
1443
1444                 row[recent_session_columns.visible_name] = Glib::path_get_basename (fullpath);
1445                 row[recent_session_columns.fullpath] = fullpath;
1446                 row[recent_session_columns.tip] = Glib::Markup::escape_text (fullpath);
1447
1448                 if (state_file_names.size() > 1) {
1449
1450                         // add the children
1451
1452                         for (std::vector<std::string>::iterator i2 = state_file_names.begin();
1453                                         i2 != state_file_names.end(); ++i2)
1454                         {
1455
1456                                 Gtk::TreeModel::Row child_row = *(recent_session_model->append (row.children()));
1457
1458                                 child_row[recent_session_columns.visible_name] = *i2;
1459                                 child_row[recent_session_columns.fullpath] = fullpath;
1460                                 child_row[recent_session_columns.tip] = Glib::Markup::escape_text (fullpath);
1461                         }
1462                 }
1463         }
1464
1465         recent_session_display.set_tooltip_column(1); // recent_session_columns.tip
1466         recent_session_display.set_model (recent_session_model);
1467 }
1468
1469 void
1470 ARDOUR_UI::build_session_selector ()
1471 {
1472         session_selector_window = new ArdourDialog (_("Recent Sessions"));
1473
1474         Gtk::ScrolledWindow *scroller = manage (new Gtk::ScrolledWindow);
1475
1476         session_selector_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
1477         session_selector_window->add_button (Stock::OPEN, RESPONSE_ACCEPT);
1478         session_selector_window->set_default_response (RESPONSE_ACCEPT);
1479         recent_session_model = TreeStore::create (recent_session_columns);
1480         recent_session_display.set_model (recent_session_model);
1481         recent_session_display.append_column (_("Recent Sessions"), recent_session_columns.visible_name);
1482         recent_session_display.set_headers_visible (false);
1483         recent_session_display.get_selection()->set_mode (SELECTION_BROWSE);
1484         recent_session_display.signal_row_activated().connect (sigc::mem_fun (*this, &ARDOUR_UI::recent_session_row_activated));
1485
1486         scroller->add (recent_session_display);
1487         scroller->set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1488
1489         session_selector_window->set_name ("SessionSelectorWindow");
1490         session_selector_window->set_size_request (200, 400);
1491         session_selector_window->get_vbox()->pack_start (*scroller);
1492
1493         recent_session_display.show();
1494         scroller->show();
1495 }
1496
1497 void
1498 ARDOUR_UI::recent_session_row_activated (const TreePath& /*path*/, TreeViewColumn* /*col*/)
1499 {
1500         session_selector_window->response (RESPONSE_ACCEPT);
1501 }
1502
1503 void
1504 ARDOUR_UI::open_recent_session ()
1505 {
1506         bool can_return = (_session != 0);
1507
1508         if (session_selector_window == 0) {
1509                 build_session_selector ();
1510         }
1511
1512         redisplay_recent_sessions ();
1513
1514         while (true) {
1515
1516                 ResponseType r = (ResponseType) session_selector_window->run ();
1517
1518                 switch (r) {
1519                 case RESPONSE_ACCEPT:
1520                         break;
1521                 default:
1522                         if (can_return) {
1523                                 session_selector_window->hide();
1524                                 return;
1525                         } else {
1526                                 exit (1);
1527                         }
1528                 }
1529
1530                 if (recent_session_display.get_selection()->count_selected_rows() == 0) {
1531                         continue;
1532                 }
1533
1534                 session_selector_window->hide();
1535
1536                 Gtk::TreeModel::iterator i = recent_session_display.get_selection()->get_selected();
1537
1538                 if (i == recent_session_model->children().end()) {
1539                         return;
1540                 }
1541
1542                 std::string path = (*i)[recent_session_columns.fullpath];
1543                 std::string state = (*i)[recent_session_columns.visible_name];
1544
1545                 _session_is_new = false;
1546
1547                 if (load_session (path, state) == 0) {
1548                         break;
1549                 }
1550
1551                 can_return = false;
1552         }
1553 }
1554
1555 bool
1556 ARDOUR_UI::check_audioengine ()
1557 {
1558         if (!AudioEngine::instance()->connected()) {
1559                 MessageDialog msg (string_compose (
1560                                            _("%1 is not connected to any audio backend.\n"
1561                                              "You cannot open or close sessions in this condition"),
1562                                            PROGRAM_NAME));
1563                 pop_back_splash (msg);
1564                 msg.run ();
1565                 return false;
1566         }
1567         return true;
1568 }
1569
1570 void
1571 ARDOUR_UI::open_session ()
1572 {
1573         if (!check_audioengine()) {
1574                 return;
1575
1576         }
1577
1578         /* popup selector window */
1579
1580         if (open_session_selector == 0) {
1581
1582                 /* ardour sessions are folders */
1583
1584                 open_session_selector = new Gtk::FileChooserDialog (_("Open Session"), FILE_CHOOSER_ACTION_OPEN);
1585                 open_session_selector->add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
1586                 open_session_selector->add_button (Gtk::Stock::OPEN, Gtk::RESPONSE_ACCEPT);
1587                 open_session_selector->set_default_response(Gtk::RESPONSE_ACCEPT);
1588
1589                 if (_session) {
1590                         string session_parent_dir = Glib::path_get_dirname(_session->path());
1591                         string::size_type last_dir_sep = session_parent_dir.rfind(G_DIR_SEPARATOR);
1592                         session_parent_dir = session_parent_dir.substr(0, last_dir_sep);
1593                         open_session_selector->set_current_folder(session_parent_dir);
1594                 } else {
1595                         open_session_selector->set_current_folder(Config->get_default_session_parent_dir());
1596                 }
1597
1598                 string default_session_folder = Config->get_default_session_parent_dir();
1599                 try {
1600                         /* add_shortcut_folder throws an exception if the folder being added already has a shortcut */
1601                         open_session_selector->add_shortcut_folder (default_session_folder);
1602                 }
1603                 catch (Glib::Error & e) {
1604                         std::cerr << "open_session_selector->add_shortcut_folder (" << default_session_folder << ") threw Glib::Error " << e.what() << std::endl;
1605                 }
1606
1607                 FileFilter session_filter;
1608                 session_filter.add_pattern ("*.ardour");
1609                 session_filter.set_name (string_compose (_("%1 sessions"), PROGRAM_NAME));
1610                 open_session_selector->add_filter (session_filter);
1611                 open_session_selector->set_filter (session_filter);
1612         }
1613
1614         int response = open_session_selector->run();
1615         open_session_selector->hide ();
1616
1617         switch (response) {
1618         case RESPONSE_ACCEPT:
1619                 break;
1620         default:
1621                 open_session_selector->hide();
1622                 return;
1623         }
1624
1625         open_session_selector->hide();
1626         string session_path = open_session_selector->get_filename();
1627         string path, name;
1628         bool isnew;
1629
1630         if (session_path.length() > 0) {
1631                 if (ARDOUR::find_session (session_path, path, name, isnew) == 0) {
1632                         _session_is_new = isnew;
1633                         load_session (path, name);
1634                 }
1635         }
1636 }
1637
1638
1639 void
1640 ARDOUR_UI::session_add_mixed_track (const ChanCount& input, const ChanCount& output, RouteGroup* route_group,
1641                                     uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
1642 {
1643         list<boost::shared_ptr<MidiTrack> > tracks;
1644
1645         if (_session == 0) {
1646                 warning << _("You cannot add a track without a session already loaded.") << endmsg;
1647                 return;
1648         }
1649
1650         try {
1651                 tracks = _session->new_midi_track (input, output, instrument, ARDOUR::Normal, route_group, how_many, name_template);
1652
1653                 if (tracks.size() != how_many) {
1654                         error << string_compose(P_("could not create %1 new mixed track", "could not create %1 new mixed tracks", how_many), how_many) << endmsg;
1655                 }
1656         }
1657
1658         catch (...) {
1659                 MessageDialog msg (*editor,
1660                                    string_compose (_("There are insufficient JACK ports available\n\
1661 to create a new track or bus.\n\
1662 You should save %1, exit and\n\
1663 restart JACK with more ports."), PROGRAM_NAME));
1664                 msg.run ();
1665         }
1666 }
1667
1668
1669 void
1670 ARDOUR_UI::session_add_midi_route (bool disk, RouteGroup* route_group, uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
1671 {
1672         ChanCount one_midi_channel;
1673         one_midi_channel.set (DataType::MIDI, 1);
1674
1675         if (disk) {
1676                 session_add_mixed_track (one_midi_channel, one_midi_channel, route_group, how_many, name_template, instrument);
1677         }
1678 }
1679
1680 void
1681 ARDOUR_UI::session_add_audio_route (
1682         bool track,
1683         int32_t input_channels,
1684         int32_t output_channels,
1685         ARDOUR::TrackMode mode,
1686         RouteGroup* route_group,
1687         uint32_t how_many,
1688         string const & name_template
1689         )
1690 {
1691         list<boost::shared_ptr<AudioTrack> > tracks;
1692         RouteList routes;
1693
1694         if (_session == 0) {
1695                 warning << _("You cannot add a track or bus without a session already loaded.") << endmsg;
1696                 return;
1697         }
1698
1699         try {
1700                 if (track) {
1701                         tracks = _session->new_audio_track (input_channels, output_channels, mode, route_group, how_many, name_template);
1702
1703                         if (tracks.size() != how_many) {
1704                                 error << string_compose (P_("could not create %1 new audio track", "could not create %1 new audio tracks", how_many), how_many)
1705                                       << endmsg;
1706                         }
1707
1708                 } else {
1709
1710                         routes = _session->new_audio_route (input_channels, output_channels, route_group, how_many, name_template);
1711
1712                         if (routes.size() != how_many) {
1713                                 error << string_compose (P_("could not create %1 new audio bus", "could not create %1 new audio busses", how_many), how_many)
1714                                       << endmsg;
1715                         }
1716                 }
1717         }
1718
1719         catch (...) {
1720                 MessageDialog msg (*editor,
1721                                    string_compose (_("There are insufficient JACK ports available\n\
1722 to create a new track or bus.\n\
1723 You should save %1, exit and\n\
1724 restart JACK with more ports."), PROGRAM_NAME));
1725                 pop_back_splash (msg);
1726                 msg.run ();
1727         }
1728 }
1729
1730 void
1731 ARDOUR_UI::transport_goto_start ()
1732 {
1733         if (_session) {
1734                 _session->goto_start();
1735
1736                 /* force displayed area in editor to start no matter
1737                    what "follow playhead" setting is.
1738                 */
1739
1740                 if (editor) {
1741                         editor->center_screen (_session->current_start_frame ());
1742                 }
1743         }
1744 }
1745
1746 void
1747 ARDOUR_UI::transport_goto_zero ()
1748 {
1749         if (_session) {
1750                 _session->request_locate (0);
1751
1752                 /* force displayed area in editor to start no matter
1753                    what "follow playhead" setting is.
1754                 */
1755
1756                 if (editor) {
1757                         editor->reset_x_origin (0);
1758                 }
1759         }
1760 }
1761
1762 void
1763 ARDOUR_UI::transport_goto_wallclock ()
1764 {
1765         if (_session && editor) {
1766
1767                 time_t now;
1768                 struct tm tmnow;
1769                 framepos_t frames;
1770
1771                 time (&now);
1772                 localtime_r (&now, &tmnow);
1773
1774                 int frame_rate = _session->frame_rate();
1775
1776                 if (frame_rate == 0) {
1777                         /* no frame rate available */
1778                         return;
1779                 }
1780
1781                 frames = tmnow.tm_hour * (60 * 60 * frame_rate);
1782                 frames += tmnow.tm_min * (60 * frame_rate);
1783                 frames += tmnow.tm_sec * frame_rate;
1784
1785                 _session->request_locate (frames, _session->transport_rolling ());
1786
1787                 /* force displayed area in editor to start no matter
1788                    what "follow playhead" setting is.
1789                 */
1790
1791                 if (editor) {
1792                         editor->center_screen (frames);
1793                 }
1794         }
1795 }
1796
1797 void
1798 ARDOUR_UI::transport_goto_end ()
1799 {
1800         if (_session) {
1801                 framepos_t const frame = _session->current_end_frame();
1802                 _session->request_locate (frame);
1803
1804                 /* force displayed area in editor to start no matter
1805                    what "follow playhead" setting is.
1806                 */
1807
1808                 if (editor) {
1809                         editor->center_screen (frame);
1810                 }
1811         }
1812 }
1813
1814 void
1815 ARDOUR_UI::transport_stop ()
1816 {
1817         if (!_session) {
1818                 return;
1819         }
1820
1821         if (_session->is_auditioning()) {
1822                 _session->cancel_audition ();
1823                 return;
1824         }
1825
1826         _session->request_stop (false, true);
1827 }
1828
1829 void
1830 ARDOUR_UI::transport_record (bool roll)
1831 {
1832
1833         if (_session) {
1834                 switch (_session->record_status()) {
1835                 case Session::Disabled:
1836                         if (_session->ntracks() == 0) {
1837                                 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."));
1838                                 msg.run ();
1839                                 return;
1840                         }
1841                         _session->maybe_enable_record ();
1842                         if (roll) {
1843                                 transport_roll ();
1844                         }
1845                         break;
1846                 case Session::Recording:
1847                         if (roll) {
1848                                 _session->request_stop();
1849                         } else {
1850                                 _session->disable_record (false, true);
1851                         }
1852                         break;
1853
1854                 case Session::Enabled:
1855                         _session->disable_record (false, true);
1856                 }
1857         }
1858 }
1859
1860 void
1861 ARDOUR_UI::transport_roll ()
1862 {
1863         if (!_session) {
1864                 return;
1865         }
1866
1867         if (_session->is_auditioning()) {
1868                 return;
1869         }
1870
1871 #if 0
1872         if (_session->config.get_external_sync()) {
1873                 switch (Config->get_sync_source()) {
1874                 case Engine:
1875                         break;
1876                 default:
1877                         /* transport controlled by the master */
1878                         return;
1879                 }
1880         }
1881 #endif
1882
1883         bool rolling = _session->transport_rolling();
1884
1885         if (_session->get_play_loop()) {
1886                 /* XXX it is not possible to just leave seamless loop and keep
1887                    playing at present (nov 4th 2009)
1888                 */
1889                 if (!Config->get_seamless_loop()) {
1890                         _session->request_play_loop (false, true);
1891                 }
1892         } else if (_session->get_play_range () && !Config->get_always_play_range()) {
1893                 /* stop playing a range if we currently are */
1894                 _session->request_play_range (0, true);
1895         }
1896
1897         if (!rolling) {
1898                 _session->request_transport_speed (1.0f);
1899         }
1900 }
1901
1902 bool
1903 ARDOUR_UI::get_smart_mode() const
1904 {
1905         return ( editor->get_smart_mode() );
1906 }
1907
1908
1909 void
1910 ARDOUR_UI::toggle_roll (bool with_abort, bool roll_out_of_bounded_mode)
1911 {
1912
1913         if (!_session) {
1914                 return;
1915         }
1916
1917         if (_session->is_auditioning()) {
1918                 _session->cancel_audition ();
1919                 return;
1920         }
1921
1922         if (_session->config.get_external_sync()) {
1923                 switch (Config->get_sync_source()) {
1924                 case Engine:
1925                         break;
1926                 default:
1927                         /* transport controlled by the master */
1928                         return;
1929                 }
1930         }
1931
1932         bool rolling = _session->transport_rolling();
1933         bool affect_transport = true;
1934
1935         if (rolling && roll_out_of_bounded_mode) {
1936                 /* drop out of loop/range playback but leave transport rolling */
1937                 if (_session->get_play_loop()) {
1938                         if (Config->get_seamless_loop()) {
1939                                 /* the disk buffers contain copies of the loop - we can't
1940                                    just keep playing, so stop the transport. the user
1941                                    can restart as they wish.
1942                                 */
1943                                 affect_transport = true;
1944                         } else {
1945                                 /* disk buffers are normal, so we can keep playing */
1946                                 affect_transport = false;
1947                         }
1948                         _session->request_play_loop (false, true);
1949                 } else if (_session->get_play_range ()) {
1950                         affect_transport = false;
1951                         _session->request_play_range (0, true);
1952                 }
1953         }
1954
1955         if (affect_transport) {
1956                 if (rolling) {
1957                         _session->request_stop (with_abort, true);
1958                 } else {
1959                         if ( Config->get_always_play_range() ) {
1960                                 _session->request_play_range (&editor->get_selection().time, true);
1961                         }
1962
1963                         _session->request_transport_speed (1.0f);
1964                 }
1965         }
1966 }
1967
1968 void
1969 ARDOUR_UI::toggle_session_auto_loop ()
1970 {
1971         Location * looploc = _session->locations()->auto_loop_location();
1972
1973         if (!_session || !looploc) {
1974                 return;
1975         }
1976
1977         if (_session->get_play_loop()) {
1978
1979                 if (_session->transport_rolling()) {
1980
1981                         _session->request_locate (looploc->start(), true);
1982                         _session->request_play_loop (false);
1983
1984                 } else {
1985                         _session->request_play_loop (false);
1986                 }
1987         } else {
1988                 _session->request_play_loop (true);
1989         }
1990
1991         //show the loop markers
1992         looploc->set_hidden (false, this);
1993 }
1994
1995 void
1996 ARDOUR_UI::transport_play_selection ()
1997 {
1998         if (!_session) {
1999                 return;
2000         }
2001
2002         editor->play_selection ();
2003 }
2004
2005 void
2006 ARDOUR_UI::transport_play_preroll ()
2007 {
2008         if (!_session) {
2009                 return;
2010         }
2011         editor->play_with_preroll ();
2012 }
2013
2014 void
2015 ARDOUR_UI::transport_rewind (int option)
2016 {
2017         float current_transport_speed;
2018
2019         if (_session) {
2020                 current_transport_speed = _session->transport_speed();
2021
2022                 if (current_transport_speed >= 0.0f) {
2023                         switch (option) {
2024                         case 0:
2025                                 _session->request_transport_speed (-1.0f);
2026                                 break;
2027                         case 1:
2028                                 _session->request_transport_speed (-4.0f);
2029                                 break;
2030                         case -1:
2031                                 _session->request_transport_speed (-0.5f);
2032                                 break;
2033                         }
2034                 } else {
2035                         /* speed up */
2036                         _session->request_transport_speed (current_transport_speed * 1.5f);
2037                 }
2038         }
2039 }
2040
2041 void
2042 ARDOUR_UI::transport_forward (int option)
2043 {
2044         if (!_session) {
2045                 return;
2046         }
2047
2048         float current_transport_speed = _session->transport_speed();
2049
2050         if (current_transport_speed <= 0.0f) {
2051                 switch (option) {
2052                 case 0:
2053                         _session->request_transport_speed (1.0f);
2054                         break;
2055                 case 1:
2056                         _session->request_transport_speed (4.0f);
2057                         break;
2058                 case -1:
2059                         _session->request_transport_speed (0.5f);
2060                         break;
2061                 }
2062         } else {
2063                 /* speed up */
2064                 _session->request_transport_speed (current_transport_speed * 1.5f);
2065         }
2066 }
2067
2068 void
2069 ARDOUR_UI::toggle_record_enable (uint32_t rid)
2070 {
2071         if (!_session) {
2072                 return;
2073         }
2074
2075         boost::shared_ptr<Route> r;
2076
2077         if ((r = _session->route_by_remote_id (rid)) != 0) {
2078
2079                 Track* t;
2080
2081                 if ((t = dynamic_cast<Track*>(r.get())) != 0) {
2082                         t->set_record_enabled (!t->record_enabled(), this);
2083                 }
2084         }
2085 }
2086
2087 void
2088 ARDOUR_UI::map_transport_state ()
2089 {
2090         if (!_session) {
2091                 auto_loop_button.unset_active_state ();
2092                 play_selection_button.unset_active_state ();
2093                 roll_button.unset_active_state ();
2094                 stop_button.set_active_state (Gtkmm2ext::ExplicitActive);
2095                 return;
2096         }
2097
2098         shuttle_box->map_transport_state ();
2099
2100         float sp = _session->transport_speed();
2101
2102         if (sp != 0.0f) {
2103
2104                 /* we're rolling */
2105
2106                 if (_session->get_play_range()) {
2107
2108                         play_selection_button.set_active_state (Gtkmm2ext::ExplicitActive);
2109                         roll_button.unset_active_state ();
2110                         auto_loop_button.unset_active_state ();
2111
2112                 } else if (_session->get_play_loop ()) {
2113
2114                         auto_loop_button.set_active (true);
2115                         play_selection_button.set_active (false);
2116                         roll_button.set_active (false);
2117
2118                 } else {
2119
2120                         roll_button.set_active (true);
2121                         play_selection_button.set_active (false);
2122                         auto_loop_button.set_active (false);
2123                 }
2124
2125                 if (Config->get_always_play_range()) {
2126                         /* light up both roll and play-selection if they are joined */
2127                         roll_button.set_active (true);
2128                         play_selection_button.set_active (true);
2129                 }
2130
2131                 stop_button.set_active (false);
2132
2133         } else {
2134
2135                 stop_button.set_active (true);
2136                 roll_button.set_active (false);
2137                 play_selection_button.set_active (false);
2138                 auto_loop_button.set_active (false);
2139                 update_disk_space ();
2140         }
2141 }
2142
2143 void
2144 ARDOUR_UI::update_clocks ()
2145 {
2146         if (!editor || !editor->dragging_playhead()) {
2147                 Clock (_session->audible_frame(), false, editor->get_preferred_edit_position()); /* EMIT_SIGNAL */
2148         }
2149 }
2150
2151 void
2152 ARDOUR_UI::start_clocking ()
2153 {
2154         if (Config->get_super_rapid_clock_update()) {
2155                 clock_signal_connection = SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &ARDOUR_UI::update_clocks));
2156         } else {
2157                 clock_signal_connection = RapidScreenUpdate.connect (sigc::mem_fun(*this, &ARDOUR_UI::update_clocks));
2158         }
2159 }
2160
2161 void
2162 ARDOUR_UI::stop_clocking ()
2163 {
2164         clock_signal_connection.disconnect ();
2165 }
2166
2167 gint
2168 ARDOUR_UI::_blink (void *arg)
2169 {
2170         ((ARDOUR_UI *) arg)->blink ();
2171         return TRUE;
2172 }
2173
2174 void
2175 ARDOUR_UI::blink ()
2176 {
2177         Blink (blink_on = !blink_on); /* EMIT_SIGNAL */
2178 }
2179
2180 void
2181 ARDOUR_UI::start_blinking ()
2182 {
2183         /* Start the blink signal. Everybody with a blinking widget
2184            uses Blink to drive the widget's state.
2185         */
2186
2187         if (blink_timeout_tag < 0) {
2188                 blink_on = false;
2189                 blink_timeout_tag = g_timeout_add (240, _blink, this);
2190         }
2191 }
2192
2193 void
2194 ARDOUR_UI::stop_blinking ()
2195 {
2196         if (blink_timeout_tag >= 0) {
2197                 g_source_remove (blink_timeout_tag);
2198                 blink_timeout_tag = -1;
2199         }
2200 }
2201
2202
2203 /** Ask the user for the name of a new snapshot and then take it.
2204  */
2205
2206 void
2207 ARDOUR_UI::snapshot_session (bool switch_to_it)
2208 {
2209         ArdourPrompter prompter (true);
2210         string snapname;
2211
2212         prompter.set_name ("Prompter");
2213         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2214         if (switch_to_it) {
2215                 prompter.set_title (_("Save as..."));
2216                 prompter.set_prompt (_("New session name"));
2217         } else {
2218                 prompter.set_title (_("Take Snapshot"));
2219                 prompter.set_prompt (_("Name of new snapshot"));
2220         }
2221
2222         if (!switch_to_it) {
2223                 char timebuf[128];
2224                 time_t n;
2225                 struct tm local_time;
2226
2227                 time (&n);
2228                 localtime_r (&n, &local_time);
2229                 strftime (timebuf, sizeof(timebuf), "%FT%H.%M.%S", &local_time);
2230                 prompter.set_initial_text (timebuf);
2231         }
2232
2233   again:
2234         switch (prompter.run()) {
2235         case RESPONSE_ACCEPT:
2236         {
2237                 prompter.get_result (snapname);
2238
2239                 bool do_save = (snapname.length() != 0);
2240
2241                 if (do_save) {
2242                         char illegal = Session::session_name_is_legal(snapname);
2243                         if (illegal) {
2244                                 MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
2245                                                      "snapshot names may not contain a '%1' character"), illegal));
2246                                 msg.run ();
2247                                 goto again;
2248                         }
2249                 }
2250
2251                 vector<std::string> p;
2252                 get_state_files_in_directory (_session->session_directory().root_path(), p);
2253                 vector<string> n = get_file_names_no_extension (p);
2254                 if (find (n.begin(), n.end(), snapname) != n.end()) {
2255
2256                         ArdourDialog confirm (_("Confirm Snapshot Overwrite"), true);
2257                         Label m (_("A snapshot already exists with that name.  Do you want to overwrite it?"));
2258                         confirm.get_vbox()->pack_start (m, true, true);
2259                         confirm.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2260                         confirm.add_button (_("Overwrite"), Gtk::RESPONSE_ACCEPT);
2261                         confirm.show_all ();
2262                         switch (confirm.run()) {
2263                         case RESPONSE_CANCEL:
2264                                 do_save = false;
2265                         }
2266                 }
2267
2268                 if (do_save) {
2269                         save_state (snapname, switch_to_it);
2270                 }
2271                 break;
2272         }
2273
2274         default:
2275                 break;
2276         }
2277 }
2278
2279 /** Ask the user for a new session name and then rename the session to it.
2280  */
2281
2282 void
2283 ARDOUR_UI::rename_session ()
2284 {
2285         if (!_session) {
2286                 return;
2287         }
2288
2289         ArdourPrompter prompter (true);
2290         string name;
2291
2292         prompter.set_name ("Prompter");
2293         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2294         prompter.set_title (_("Rename Session"));
2295         prompter.set_prompt (_("New session name"));
2296
2297   again:
2298         switch (prompter.run()) {
2299         case RESPONSE_ACCEPT:
2300         {
2301                 prompter.get_result (name);
2302
2303                 bool do_rename = (name.length() != 0);
2304
2305                 if (do_rename) {
2306                         char illegal = Session::session_name_is_legal (name);
2307
2308                         if (illegal) {
2309                                 MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
2310                                                                      "session names may not contain a '%1' character"), illegal));
2311                                 msg.run ();
2312                                 goto again;
2313                         }
2314
2315                         switch (_session->rename (name)) {
2316                         case -1: {
2317                                 MessageDialog msg (_("That name is already in use by another directory/folder. Please try again."));
2318                                 msg.set_position (WIN_POS_MOUSE);
2319                                 msg.run ();
2320                                 goto again;
2321                                 break;
2322                         }
2323                         case 0:
2324                                 break;
2325                         default: {
2326                                 MessageDialog msg (_("Renaming this session failed.\nThings could be seriously messed up at this point"));
2327                                 msg.set_position (WIN_POS_MOUSE);
2328                                 msg.run ();
2329                                 break;
2330                         }
2331                         }
2332                 }
2333
2334                 break;
2335         }
2336
2337         default:
2338                 break;
2339         }
2340 }
2341
2342 void
2343 ARDOUR_UI::save_state (const string & name, bool switch_to_it)
2344 {
2345         XMLNode* node = new XMLNode (X_("UI"));
2346
2347         WM::Manager::instance().add_state (*node);
2348
2349         node->add_child_nocopy (gui_object_state->get_state());
2350
2351         _session->add_extra_xml (*node);
2352
2353         save_state_canfail (name, switch_to_it);
2354 }
2355
2356 int
2357 ARDOUR_UI::save_state_canfail (string name, bool switch_to_it)
2358 {
2359         if (_session) {
2360                 int ret;
2361
2362                 if (name.length() == 0) {
2363                         name = _session->snap_name();
2364                 }
2365
2366                 if ((ret = _session->save_state (name, false, switch_to_it)) != 0) {
2367                         return ret;
2368                 }
2369         }
2370
2371         save_ardour_state (); /* XXX cannot fail? yeah, right ... */
2372         return 0;
2373 }
2374
2375 void
2376 ARDOUR_UI::primary_clock_value_changed ()
2377 {
2378         if (_session) {
2379                 _session->request_locate (primary_clock->current_time ());
2380         }
2381 }
2382
2383 void
2384 ARDOUR_UI::big_clock_value_changed ()
2385 {
2386         if (_session) {
2387                 _session->request_locate (big_clock->current_time ());
2388         }
2389 }
2390
2391 void
2392 ARDOUR_UI::secondary_clock_value_changed ()
2393 {
2394         if (_session) {
2395                 _session->request_locate (secondary_clock->current_time ());
2396         }
2397 }
2398
2399 void
2400 ARDOUR_UI::transport_rec_enable_blink (bool onoff)
2401 {
2402         if (_session == 0) {
2403                 return;
2404         }
2405
2406         if (_session->step_editing()) {
2407                 return;
2408         }
2409
2410         Session::RecordState const r = _session->record_status ();
2411         bool const h = _session->have_rec_enabled_track ();
2412
2413         if (r == Session::Enabled || (r == Session::Recording && !h)) {
2414                 if (onoff) {
2415                         rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
2416                 } else {
2417                         rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
2418                 }
2419         } else if (r == Session::Recording && h) {
2420                 rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
2421         } else {
2422                 rec_button.unset_active_state ();
2423         }
2424 }
2425
2426 void
2427 ARDOUR_UI::save_template ()
2428 {
2429         ArdourPrompter prompter (true);
2430         string name;
2431
2432         if (!check_audioengine()) {
2433                 return;
2434         }
2435
2436         prompter.set_name (X_("Prompter"));
2437         prompter.set_title (_("Save Template"));
2438         prompter.set_prompt (_("Name for template:"));
2439         prompter.set_initial_text(_session->name() + _("-template"));
2440         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
2441
2442         switch (prompter.run()) {
2443         case RESPONSE_ACCEPT:
2444                 prompter.get_result (name);
2445
2446                 if (name.length()) {
2447                         _session->save_template (name);
2448                 }
2449                 break;
2450
2451         default:
2452                 break;
2453         }
2454 }
2455
2456 void
2457 ARDOUR_UI::edit_metadata ()
2458 {
2459         SessionMetadataEditor dialog;
2460         dialog.set_session (_session);
2461         editor->ensure_float (dialog);
2462         dialog.run ();
2463 }
2464
2465 void
2466 ARDOUR_UI::import_metadata ()
2467 {
2468         SessionMetadataImporter dialog;
2469         dialog.set_session (_session);
2470         editor->ensure_float (dialog);
2471         dialog.run ();
2472 }
2473
2474 bool
2475 ARDOUR_UI::ask_about_loading_existing_session (const std::string& session_path)
2476 {
2477         std::string str = string_compose (_("This session\n%1\nalready exists. Do you want to open it?"), session_path);
2478
2479         MessageDialog msg (str,
2480                            false,
2481                            Gtk::MESSAGE_WARNING,
2482                            Gtk::BUTTONS_YES_NO,
2483                            true);
2484
2485
2486         msg.set_name (X_("OpenExistingDialog"));
2487         msg.set_title (_("Open Existing Session"));
2488         msg.set_wmclass (X_("existing_session"), PROGRAM_NAME);
2489         msg.set_position (Gtk::WIN_POS_MOUSE);
2490         pop_back_splash (msg);
2491
2492         switch (msg.run()) {
2493         case RESPONSE_YES:
2494                 return true;
2495                 break;
2496         }
2497         return false;
2498 }
2499
2500 int
2501 ARDOUR_UI::build_session_from_dialog (SessionDialog& sd, const std::string& session_path, const std::string& session_name)
2502 {
2503         BusProfile bus_profile;
2504
2505         if (nsm || Profile->get_sae()) {
2506
2507                 bus_profile.master_out_channels = 2;
2508                 bus_profile.input_ac = AutoConnectPhysical;
2509                 bus_profile.output_ac = AutoConnectMaster;
2510                 bus_profile.requested_physical_in = 0; // use all available
2511                 bus_profile.requested_physical_out = 0; // use all available
2512
2513         } else {
2514
2515                 /* get settings from advanced section of NSD */
2516
2517                 if (sd.create_master_bus()) {
2518                         bus_profile.master_out_channels = (uint32_t) sd.master_channel_count();
2519                 } else {
2520                         bus_profile.master_out_channels = 0;
2521                 }
2522
2523                 if (sd.connect_inputs()) {
2524                         bus_profile.input_ac = AutoConnectPhysical;
2525                 } else {
2526                         bus_profile.input_ac = AutoConnectOption (0);
2527                 }
2528
2529                 bus_profile.output_ac = AutoConnectOption (0);
2530
2531                 if (sd.connect_outputs ()) {
2532                         if (sd.connect_outs_to_master()) {
2533                                 bus_profile.output_ac = AutoConnectMaster;
2534                         } else if (sd.connect_outs_to_physical()) {
2535                                 bus_profile.output_ac = AutoConnectPhysical;
2536                         }
2537                 }
2538
2539                 bus_profile.requested_physical_in = (uint32_t) sd.input_limit_count();
2540                 bus_profile.requested_physical_out = (uint32_t) sd.output_limit_count();
2541         }
2542
2543         if (build_session (session_path, session_name, bus_profile)) {
2544                 return -1;
2545         }
2546
2547         return 0;
2548 }
2549
2550 void
2551 ARDOUR_UI::idle_load (const std::string& path)
2552 {
2553         if (_session) {
2554                 if (Glib::file_test (path, Glib::FILE_TEST_IS_DIR)) {
2555                         /* /path/to/foo => /path/to/foo, foo */
2556                         load_session (path, basename_nosuffix (path));
2557                 } else {
2558                         /* /path/to/foo/foo.ardour => /path/to/foo, foo */
2559                         load_session (Glib::path_get_dirname (path), basename_nosuffix (path));
2560                 }
2561
2562         } else {
2563                 ARDOUR_COMMAND_LINE::session_name = path;
2564         }
2565 }
2566
2567 /** @param quit_on_cancel true if exit() should be called if the user clicks `cancel' in the new session dialog */
2568 int
2569 ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, string load_template)
2570 {
2571         string session_name;
2572         string session_path;
2573         string template_name;
2574         int ret = -1;
2575         bool likely_new = false;
2576         bool cancel_not_quit;
2577
2578         /* deal with any existing DIRTY session now, rather than later. don't
2579          * treat a non-dirty session this way, so that it stays visible
2580          * as we bring up the new session dialog.
2581          */
2582
2583         if (_session && ARDOUR_UI::instance()->video_timeline) {
2584                 ARDOUR_UI::instance()->video_timeline->sync_session_state();
2585         }
2586
2587         /* if there is already a session, relabel the button
2588            on the SessionDialog so that we don't Quit directly
2589         */
2590         cancel_not_quit = (_session != 0);
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         session_name = basename_nosuffix (ARDOUR_COMMAND_LINE::session_name);
2606         session_path = ARDOUR_COMMAND_LINE::session_name;
2607
2608         if (!session_path.empty()) {
2609                 if (Glib::file_test (session_path.c_str(), Glib::FILE_TEST_EXISTS)) {
2610                         if (Glib::file_test (session_path.c_str(), Glib::FILE_TEST_IS_REGULAR)) {
2611                                 /* session/snapshot file, change path to be dir */
2612                                 session_path = Glib::path_get_dirname (session_path);
2613                         }
2614                 }
2615         }
2616
2617         SessionDialog session_dialog (should_be_new, session_name, session_path, load_template, cancel_not_quit);
2618
2619         while (ret != 0) {
2620
2621                 if (!ARDOUR_COMMAND_LINE::session_name.empty()) {
2622
2623                         /* if they named a specific statefile, use it, otherwise they are
2624                            just giving a session folder, and we want to use it as is
2625                            to find the session.
2626                         */
2627
2628                         string::size_type suffix = ARDOUR_COMMAND_LINE::session_name.find (statefile_suffix);
2629
2630                         if (suffix != string::npos) {
2631                                 session_path = Glib::path_get_dirname (ARDOUR_COMMAND_LINE::session_name);
2632                                 session_name = ARDOUR_COMMAND_LINE::session_name.substr (0, suffix);
2633                                 session_name = Glib::path_get_basename (session_name);
2634                         } else {
2635                                 session_path = ARDOUR_COMMAND_LINE::session_name;
2636                                 session_name = Glib::path_get_basename (ARDOUR_COMMAND_LINE::session_name);
2637                         }
2638                 } else {
2639                         session_path = "";
2640                         session_name = "";
2641                         session_dialog.clear_given ();
2642                 }
2643
2644                 if (should_be_new || session_name.empty()) {
2645                         /* need the dialog to get info from user */
2646
2647                         cerr << "run dialog\n";
2648
2649                         switch (session_dialog.run()) {
2650                         case RESPONSE_ACCEPT:
2651                                 break;
2652                         default:
2653                                 if (quit_on_cancel) {
2654                                         exit (1);
2655                                 } else {
2656                                         return ret;
2657                                 }
2658                         }
2659
2660                         session_dialog.hide ();
2661                 }
2662
2663                 /* if we run the startup dialog again, offer more than just "new session" */
2664
2665                 should_be_new = false;
2666
2667                 session_name = session_dialog.session_name (likely_new);
2668                 session_path = session_dialog.session_folder ();
2669
2670                 if (nsm) {
2671                         likely_new = true;
2672                 }
2673
2674                 string::size_type suffix = session_name.find (statefile_suffix);
2675
2676                 if (suffix != string::npos) {
2677                         session_name = session_name.substr (0, suffix);
2678                 }
2679
2680                 /* this shouldn't happen, but we catch it just in case it does */
2681
2682                 if (session_name.empty()) {
2683                         continue;
2684                 }
2685
2686                 if (session_dialog.use_session_template()) {
2687                         template_name = session_dialog.session_template_name();
2688                         _session_is_new = true;
2689                 }
2690
2691                 if (session_name[0] == G_DIR_SEPARATOR ||
2692                     (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == G_DIR_SEPARATOR) ||
2693                     (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == G_DIR_SEPARATOR)) {
2694
2695                         /* absolute path or cwd-relative path specified for session name: infer session folder
2696                            from what was given.
2697                         */
2698
2699                         session_path = Glib::path_get_dirname (session_name);
2700                         session_name = Glib::path_get_basename (session_name);
2701
2702                 } else {
2703
2704                         session_path = session_dialog.session_folder();
2705
2706                         char illegal = Session::session_name_is_legal (session_name);
2707
2708                         if (illegal) {
2709                                 MessageDialog msg (session_dialog,
2710                                                    string_compose (_("To ensure compatibility with various systems\n"
2711                                                                      "session names may not contain a '%1' character"),
2712                                                                    illegal));
2713                                 msg.run ();
2714                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2715                                 continue;
2716                         }
2717                 }
2718
2719                 if (Glib::file_test (session_path, Glib::FileTest (G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))) {
2720
2721
2722                         if (likely_new && !nsm) {
2723
2724                                 std::string existing = Glib::build_filename (session_path, session_name);
2725
2726                                 if (!ask_about_loading_existing_session (existing)) {
2727                                         ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2728                                         continue;
2729                                 }
2730                         }
2731
2732                         _session_is_new = false;
2733
2734                 } else {
2735
2736                         if (!likely_new) {
2737                                 pop_back_splash (session_dialog);
2738                                 MessageDialog msg (string_compose (_("There is no existing session at \"%1\""), session_path));
2739                                 msg.run ();
2740                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2741                                 continue;
2742                         }
2743
2744                         char illegal = Session::session_name_is_legal(session_name);
2745
2746                         if (illegal) {
2747                                 pop_back_splash (session_dialog);
2748                                 MessageDialog msg (session_dialog, string_compose(_("To ensure compatibility with various systems\n"
2749                                                                                     "session names may not contain a '%1' character"), illegal));
2750                                 msg.run ();
2751                                 ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
2752                                 continue;
2753                         }
2754
2755                         _session_is_new = true;
2756                 }
2757
2758                 if (likely_new && template_name.empty()) {
2759
2760                         ret = build_session_from_dialog (session_dialog, session_path, session_name);
2761
2762                 } else {
2763
2764                         ret = load_session (session_path, session_name, template_name);
2765
2766                         if (ret == -2) {
2767                                 /* not connected to the AudioEngine, so quit to avoid an infinite loop */
2768                                 exit (1);
2769                         }
2770
2771                         if (!ARDOUR_COMMAND_LINE::immediate_save.empty()) {
2772                                 _session->save_state (ARDOUR_COMMAND_LINE::immediate_save, false);
2773                                 exit (1);
2774                         }
2775
2776                         /* clear this to avoid endless attempts to load the
2777                            same session.
2778                         */
2779
2780                         ARDOUR_COMMAND_LINE::session_name = "";
2781                 }
2782         }
2783
2784         return ret;
2785 }
2786
2787 void
2788 ARDOUR_UI::close_session()
2789 {
2790         if (!check_audioengine()) {
2791                 return;
2792         }
2793
2794         if (unload_session (true)) {
2795                 return;
2796         }
2797
2798         ARDOUR_COMMAND_LINE::session_name = "";
2799
2800         if (get_session_parameters (true, false)) {
2801                 exit (1);
2802         }
2803
2804         goto_editor_window ();
2805 }
2806
2807 /** @param snap_name Snapshot name (without .ardour suffix).
2808  *  @return -2 if the load failed because we are not connected to the AudioEngine.
2809  */
2810 int
2811 ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name, std::string mix_template)
2812 {
2813         Session *new_session;
2814         int unload_status;
2815         int retval = -1;
2816
2817         if (_session) {
2818                 unload_status = unload_session ();
2819
2820                 if (unload_status < 0) {
2821                         goto out;
2822                 } else if (unload_status > 0) {
2823                         retval = 0;
2824                         goto out;
2825                 }
2826         }
2827
2828         session_loaded = false;
2829
2830         loading_message (string_compose (_("Please wait while %1 loads your session"), PROGRAM_NAME));
2831
2832         try {
2833                 new_session = new Session (*AudioEngine::instance(), path, snap_name, 0, mix_template);
2834         }
2835
2836         /* this one is special */
2837
2838         catch (AudioEngine::PortRegistrationFailure& err) {
2839
2840                 MessageDialog msg (err.what(),
2841                                    true,
2842                                    Gtk::MESSAGE_INFO,
2843                                    Gtk::BUTTONS_CLOSE);
2844
2845                 msg.set_title (_("Port Registration Error"));
2846                 msg.set_secondary_text (_("Click the Close button to try again."));
2847                 msg.set_position (Gtk::WIN_POS_CENTER);
2848                 pop_back_splash (msg);
2849                 msg.present ();
2850
2851                 int response = msg.run ();
2852
2853                 msg.hide ();
2854
2855                 switch (response) {
2856                 case RESPONSE_CANCEL:
2857                         exit (1);
2858                 default:
2859                         break;
2860                 }
2861                 goto out;
2862         }
2863
2864         catch (...) {
2865
2866                 MessageDialog msg (string_compose(
2867                                            _("Session \"%1 (snapshot %2)\" did not load successfully"),
2868                                            path, snap_name),
2869                                    true,
2870                                    Gtk::MESSAGE_INFO,
2871                                    BUTTONS_OK);
2872
2873                 msg.set_keep_above (true);
2874                 msg.set_title (_("Loading Error"));
2875                 msg.set_position (Gtk::WIN_POS_CENTER);
2876                 pop_back_splash (msg);
2877                 msg.present ();
2878                 (void) msg.run ();
2879                 msg.hide ();
2880
2881                 goto out;
2882         }
2883
2884         {
2885                 list<string> const u = new_session->unknown_processors ();
2886                 if (!u.empty()) {
2887                         MissingPluginDialog d (_session, u);
2888                         d.run ();
2889                 }
2890         }
2891
2892         if (!new_session->writable()) {
2893                 MessageDialog msg (_("This session has been opened in read-only mode.\n\nYou will not be able to record or save."),
2894                                    true,
2895                                    Gtk::MESSAGE_INFO,
2896                                    BUTTONS_OK);
2897
2898                 msg.set_keep_above (true);
2899                 msg.set_title (_("Read-only Session"));
2900                 msg.set_position (Gtk::WIN_POS_CENTER);
2901                 pop_back_splash (msg);
2902                 msg.present ();
2903                 (void) msg.run ();
2904                 msg.hide ();
2905         }
2906
2907
2908         /* Now the session been created, add the transport controls */
2909         new_session->add_controllable(roll_controllable);
2910         new_session->add_controllable(stop_controllable);
2911         new_session->add_controllable(goto_start_controllable);
2912         new_session->add_controllable(goto_end_controllable);
2913         new_session->add_controllable(auto_loop_controllable);
2914         new_session->add_controllable(play_selection_controllable);
2915         new_session->add_controllable(rec_controllable);
2916
2917         set_session (new_session);
2918
2919         session_loaded = true;
2920
2921         goto_editor_window ();
2922
2923         if (_session) {
2924                 _session->set_clean ();
2925         }
2926
2927 #ifdef WINDOWS_VST_SUPPORT
2928         fst_stop_threading();
2929 #endif
2930         flush_pending ();
2931 #ifdef WINDOWS_VST_SUPPORT
2932         fst_start_threading();
2933 #endif
2934         retval = 0;
2935
2936   out:
2937         return retval;
2938 }
2939
2940 int
2941 ARDOUR_UI::build_session (const std::string& path, const std::string& snap_name, BusProfile& bus_profile)
2942 {
2943         Session *new_session;
2944         int x;
2945
2946         session_loaded = false;
2947         x = unload_session ();
2948
2949         if (x < 0) {
2950                 return -1;
2951         } else if (x > 0) {
2952                 return 0;
2953         }
2954
2955         _session_is_new = true;
2956
2957         try {
2958                 new_session = new Session (*AudioEngine::instance(), path, snap_name, &bus_profile);
2959         }
2960
2961         catch (...) {
2962
2963                 MessageDialog msg (string_compose(_("Could not create session in \"%1\""), path));
2964                 pop_back_splash (msg);
2965                 msg.run ();
2966                 return -1;
2967         }
2968
2969         /* Give the new session the default GUI state, if such things exist */
2970
2971         XMLNode* n;
2972         n = Config->instant_xml (X_("Editor"));
2973         if (n) {
2974                 new_session->add_instant_xml (*n, false);
2975         }
2976         n = Config->instant_xml (X_("Mixer"));
2977         if (n) {
2978                 new_session->add_instant_xml (*n, false);
2979         }
2980
2981         /* Put the playhead at 0 and scroll fully left */
2982         n = new_session->instant_xml (X_("Editor"));
2983         if (n) {
2984                 n->add_property (X_("playhead"), X_("0"));
2985                 n->add_property (X_("left-frame"), X_("0"));
2986         }
2987
2988         set_session (new_session);
2989
2990         session_loaded = true;
2991
2992         new_session->save_state(new_session->name());
2993
2994         return 0;
2995 }
2996
2997 void
2998 ARDOUR_UI::launch_chat ()
2999 {
3000 #ifdef __APPLE__
3001         open_uri("http://webchat.freenode.net/?channels=ardour-osx");
3002 #else
3003         open_uri("http://webchat.freenode.net/?channels=ardour");
3004 #endif
3005 }
3006
3007 void
3008 ARDOUR_UI::launch_manual ()
3009 {
3010         PBD::open_uri (Config->get_tutorial_manual_url());
3011 }
3012
3013 void
3014 ARDOUR_UI::launch_reference ()
3015 {
3016         PBD::open_uri (Config->get_reference_manual_url());
3017 }
3018
3019 void
3020 ARDOUR_UI::loading_message (const std::string& msg)
3021 {
3022         if (ARDOUR_COMMAND_LINE::no_splash) {
3023                 return;
3024         }
3025
3026         if (!splash) {
3027                 show_splash ();
3028         }
3029
3030         splash->message (msg);
3031 }
3032
3033 void
3034 ARDOUR_UI::show_splash ()
3035 {
3036         if (splash == 0) {
3037                 try {
3038                         splash = new Splash;
3039                 } catch (...) {
3040                         return;
3041                 }
3042         }
3043
3044         splash->display ();
3045 }
3046
3047 void
3048 ARDOUR_UI::hide_splash ()
3049 {
3050         delete splash;
3051         splash = 0;
3052 }
3053
3054 void
3055 ARDOUR_UI::display_cleanup_results (ARDOUR::CleanupReport& rep, const gchar* list_title, const bool msg_delete)
3056 {
3057         size_t removed;
3058
3059         removed = rep.paths.size();
3060
3061         if (removed == 0) {
3062                 MessageDialog msgd (*editor,
3063                                     _("No files were ready for clean-up"),
3064                                     true,
3065                                     Gtk::MESSAGE_INFO,
3066                                     Gtk::BUTTONS_OK);
3067                 msgd.set_title (_("Clean-up"));
3068                 msgd.set_secondary_text (_("If this seems suprising, \n\
3069 check for any existing snapshots.\n\
3070 These may still include regions that\n\
3071 require some unused files to continue to exist."));
3072
3073                 msgd.run ();
3074                 return;
3075         }
3076
3077         ArdourDialog results (_("Clean-up"), true, false);
3078
3079         struct CleanupResultsModelColumns : public Gtk::TreeModel::ColumnRecord {
3080             CleanupResultsModelColumns() {
3081                     add (visible_name);
3082                     add (fullpath);
3083             }
3084             Gtk::TreeModelColumn<std::string> visible_name;
3085             Gtk::TreeModelColumn<std::string> fullpath;
3086         };
3087
3088
3089         CleanupResultsModelColumns results_columns;
3090         Glib::RefPtr<Gtk::ListStore> results_model;
3091         Gtk::TreeView results_display;
3092
3093         results_model = ListStore::create (results_columns);
3094         results_display.set_model (results_model);
3095         results_display.append_column (list_title, results_columns.visible_name);
3096
3097         results_display.set_name ("CleanupResultsList");
3098         results_display.set_headers_visible (true);
3099         results_display.set_headers_clickable (false);
3100         results_display.set_reorderable (false);
3101
3102         Gtk::ScrolledWindow list_scroller;
3103         Gtk::Label txt;
3104         Gtk::VBox dvbox;
3105         Gtk::HBox dhbox;  // the hbox for the image and text
3106         Gtk::HBox ddhbox; // the hbox we eventually pack into the dialog's vbox
3107         Gtk::Image* dimage = manage (new Gtk::Image(Stock::DIALOG_INFO,  Gtk::ICON_SIZE_DIALOG));
3108
3109         dimage->set_alignment(ALIGN_LEFT, ALIGN_TOP);
3110
3111         const string dead_directory = _session->session_directory().dead_path();
3112
3113         /* subst:
3114            %1 - number of files removed
3115            %2 - location of "dead"
3116            %3 - size of files affected
3117            %4 - prefix for "bytes" to produce sensible results (e.g. mega, kilo, giga)
3118         */
3119
3120         const char* bprefix;
3121         double space_adjusted = 0;
3122
3123         if (rep.space < 1000) {
3124                 bprefix = X_("");
3125                 space_adjusted = rep.space;
3126         } else if (rep.space < 1000000) {
3127                 bprefix = _("kilo");
3128                 space_adjusted = floorf((float)rep.space / 1000.0);
3129         } else if (rep.space < 1000000 * 1000) {
3130                 bprefix = _("mega");
3131                 space_adjusted = floorf((float)rep.space / (1000.0 * 1000.0));
3132         } else {
3133                 bprefix = _("giga");
3134                 space_adjusted = floorf((float)rep.space / (1000.0 * 1000 * 1000.0));
3135         }
3136
3137         if (msg_delete) {
3138                 txt.set_markup (string_compose (P_("\
3139 The following file was deleted from %2,\n\
3140 releasing %3 %4bytes of disk space", "\
3141 The following %1 files were deleted from %2,\n\
3142 releasing %3 %4bytes of disk space", removed),
3143                                         removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
3144         } else {
3145                 txt.set_markup (string_compose (P_("\
3146 The following file was not in use and \n\
3147 has been moved to: %2\n\n\
3148 After a restart of %5\n\n\
3149 <span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
3150 will release an additional %3 %4bytes of disk space.\n", "\
3151 The following %1 files were not in use and \n\
3152 have been moved to: %2\n\n\
3153 After a restart of %5\n\n\
3154 <span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
3155 will release an additional %3 %4bytes of disk space.\n", removed),
3156                                         removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
3157         }
3158
3159         dhbox.pack_start (*dimage, true, false, 5);
3160         dhbox.pack_start (txt, true, false, 5);
3161
3162         for (vector<string>::iterator i = rep.paths.begin(); i != rep.paths.end(); ++i) {
3163                 TreeModel::Row row = *(results_model->append());
3164                 row[results_columns.visible_name] = *i;
3165                 row[results_columns.fullpath] = *i;
3166         }
3167
3168         list_scroller.add (results_display);
3169         list_scroller.set_size_request (-1, 150);
3170         list_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
3171
3172         dvbox.pack_start (dhbox, true, false, 5);
3173         dvbox.pack_start (list_scroller, true, false, 5);
3174         ddhbox.pack_start (dvbox, true, false, 5);
3175
3176         results.get_vbox()->pack_start (ddhbox, true, false, 5);
3177         results.add_button (Stock::CLOSE, RESPONSE_CLOSE);
3178         results.set_default_response (RESPONSE_CLOSE);
3179         results.set_position (Gtk::WIN_POS_MOUSE);
3180
3181         results_display.show();
3182         list_scroller.show();
3183         txt.show();
3184         dvbox.show();
3185         dhbox.show();
3186         ddhbox.show();
3187         dimage->show();
3188
3189         //results.get_vbox()->show();
3190         results.set_resizable (false);
3191
3192         results.run ();
3193
3194 }
3195
3196 void
3197 ARDOUR_UI::cleanup ()
3198 {
3199         if (_session == 0) {
3200                 /* shouldn't happen: menu item is insensitive */
3201                 return;
3202         }
3203
3204
3205         MessageDialog checker (_("Are you sure you want to clean-up?"),
3206                                 true,
3207                                 Gtk::MESSAGE_QUESTION,
3208                                 Gtk::BUTTONS_NONE);
3209
3210         checker.set_title (_("Clean-up"));
3211
3212         checker.set_secondary_text(_("Clean-up is a destructive operation.\n\
3213 ALL undo/redo information will be lost if you clean-up.\n\
3214 Clean-up will move all unused files to a \"dead\" location."));
3215
3216         checker.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3217         checker.add_button (_("Clean-up"), RESPONSE_ACCEPT);
3218         checker.set_default_response (RESPONSE_CANCEL);
3219
3220         checker.set_name (_("CleanupDialog"));
3221         checker.set_wmclass (X_("ardour_cleanup"), PROGRAM_NAME);
3222         checker.set_position (Gtk::WIN_POS_MOUSE);
3223
3224         switch (checker.run()) {
3225         case RESPONSE_ACCEPT:
3226                 break;
3227         default:
3228                 return;
3229         }
3230
3231         ARDOUR::CleanupReport rep;
3232
3233         editor->prepare_for_cleanup ();
3234
3235         /* do not allow flush until a session is reloaded */
3236
3237         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Main"), X_("FlushWastebasket"));
3238         if (act) {
3239                 act->set_sensitive (false);
3240         }
3241
3242         if (_session->cleanup_sources (rep)) {
3243                 editor->finish_cleanup ();
3244                 return;
3245         }
3246
3247         editor->finish_cleanup ();
3248
3249         checker.hide();
3250         display_cleanup_results (rep, _("Cleaned Files"), false);
3251 }
3252
3253 void
3254 ARDOUR_UI::flush_trash ()
3255 {
3256         if (_session == 0) {
3257                 /* shouldn't happen: menu item is insensitive */
3258                 return;
3259         }
3260
3261         ARDOUR::CleanupReport rep;
3262
3263         if (_session->cleanup_trash_sources (rep)) {
3264                 return;
3265         }
3266
3267         display_cleanup_results (rep, _("deleted file"), true);
3268 }
3269
3270 void
3271 ARDOUR_UI::setup_order_hint ()
3272 {
3273         uint32_t order_hint = 0;
3274
3275         /*
3276           we want the new routes to have their order keys set starting from
3277           the highest order key in the selection + 1 (if available).
3278         */
3279         if (add_route_dialog->get_transient_for () == mixer->get_toplevel()) {
3280                 for (RouteUISelection::iterator s = mixer->selection().routes.begin(); s != mixer->selection().routes.end(); ++s) {
3281                         if ((*s)->route()->order_key() > order_hint) {
3282                                 order_hint = (*s)->route()->order_key();
3283                         }
3284                 }
3285
3286                 if (!mixer->selection().routes.empty()) {
3287                         order_hint++;
3288                 }
3289
3290         } else {
3291                 for (TrackSelection::iterator s = editor->get_selection().tracks.begin(); s != editor->get_selection().tracks.end(); ++s) {
3292                         RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (*s);
3293                         if (tav && tav->route() && tav->route()->order_key() > order_hint) {
3294                                 order_hint = tav->route()->order_key();
3295                         }
3296                 }
3297
3298                 if (!editor->get_selection().tracks.empty()) {
3299                         order_hint++;
3300                 }
3301         }
3302
3303         _session->set_order_hint (order_hint);
3304
3305         /* create a gap in the existing route order keys to accomodate new routes.*/
3306
3307         boost::shared_ptr <RouteList> rd = _session->get_routes();
3308         for (RouteList::iterator ri = rd->begin(); ri != rd->end(); ++ri) {
3309                 boost::shared_ptr<Route> rt (*ri);
3310
3311                 if (rt->is_monitor()) {
3312                         continue;
3313                 }
3314
3315                 if (rt->order_key () >= order_hint) {
3316                         rt->set_order_key (rt->order_key () + add_route_dialog->count());
3317                 }
3318         }
3319 }
3320
3321 void
3322 ARDOUR_UI::add_route (Gtk::Window* float_window)
3323 {
3324         int count;
3325
3326         if (!_session) {
3327                 return;
3328         }
3329
3330         if (add_route_dialog->is_visible()) {
3331                 /* we're already doing this */
3332                 return;
3333         }
3334
3335         if (float_window) {
3336                 add_route_dialog->unset_transient_for ();
3337                 add_route_dialog->set_transient_for (*float_window);
3338         }
3339
3340         ResponseType r = (ResponseType) add_route_dialog->run ();
3341
3342         add_route_dialog->hide();
3343
3344         switch (r) {
3345                 case RESPONSE_ACCEPT:
3346                         break;
3347                 default:
3348                         return;
3349                         break;
3350         }
3351
3352         if ((count = add_route_dialog->count()) <= 0) {
3353                 return;
3354         }
3355
3356         setup_order_hint();
3357
3358         PBD::ScopedConnection idle_connection;
3359
3360         string template_path = add_route_dialog->track_template();
3361
3362         if (!template_path.empty()) {
3363                 if (add_route_dialog->name_template_is_default())  {
3364                         _session->new_route_from_template (count, template_path, string());
3365                 } else {
3366                         _session->new_route_from_template (count, template_path, add_route_dialog->name_template());
3367                 }
3368                 return;
3369         }
3370
3371         ChanCount input_chan= add_route_dialog->channels ();
3372         ChanCount output_chan;
3373         string name_template = add_route_dialog->name_template ();
3374         PluginInfoPtr instrument = add_route_dialog->requested_instrument ();
3375         RouteGroup* route_group = add_route_dialog->route_group ();
3376         AutoConnectOption oac = Config->get_output_auto_connect();
3377
3378         if (oac & AutoConnectMaster) {
3379                 output_chan.set (DataType::AUDIO, (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan.n_audio()));
3380                 output_chan.set (DataType::MIDI, 0);
3381         } else {
3382                 output_chan = input_chan;
3383         }
3384
3385         /* XXX do something with name template */
3386
3387         switch (add_route_dialog->type_wanted()) {
3388         case AddRouteDialog::AudioTrack:
3389                 session_add_audio_track (input_chan.n_audio(), output_chan.n_audio(), add_route_dialog->mode(), route_group, count, name_template);
3390                 break;
3391         case AddRouteDialog::MidiTrack:
3392                 session_add_midi_track (route_group, count, name_template, instrument);
3393                 break;
3394         case AddRouteDialog::MixedTrack:
3395                 session_add_mixed_track (input_chan, output_chan, route_group, count, name_template, instrument);
3396                 break;
3397         case AddRouteDialog::AudioBus:
3398                 session_add_audio_bus (input_chan.n_audio(), output_chan.n_audio(), route_group, count, name_template);
3399                 break;
3400         }
3401
3402         /* idle connection will end at scope end */
3403 }
3404
3405 void
3406 ARDOUR_UI::stop_video_server (bool ask_confirm)
3407 {
3408         if (!video_server_process && ask_confirm) {
3409                 warning << string_compose (_("Video-Server was not launched by %1. The request to stop it is ignored."), PROGRAM_NAME) << endmsg;
3410         }
3411         if (video_server_process) {
3412                 if(ask_confirm) {
3413                         ArdourDialog confirm (_("Stop Video-Server"), true);
3414                         Label m (_("Do you really want to stop the Video Server?"));
3415                         confirm.get_vbox()->pack_start (m, true, true);
3416                         confirm.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
3417                         confirm.add_button (_("Yes, Stop It"), Gtk::RESPONSE_ACCEPT);
3418                         confirm.show_all ();
3419                         if (confirm.run() == RESPONSE_CANCEL) {
3420                                 return;
3421                         }
3422                 }
3423                 delete video_server_process;
3424                 video_server_process =0;
3425         }
3426 }
3427
3428 void
3429 ARDOUR_UI::start_video_server_menu (Gtk::Window* float_window)
3430 {
3431   ARDOUR_UI::start_video_server( float_window, true);
3432 }
3433
3434 bool
3435 ARDOUR_UI::start_video_server (Gtk::Window* float_window, bool popup_msg)
3436 {
3437         if (!_session) {
3438                 return false;
3439         }
3440         if (popup_msg) {
3441                 if (ARDOUR_UI::instance()->video_timeline->check_server()) {
3442                         if (video_server_process) {
3443                                 popup_error(_("The Video Server is already started."));
3444                         } else {
3445                                 popup_error(_("An external Video Server is configured and can be reached. Not starting a new instance."));
3446                         }
3447                 }
3448         }
3449
3450         int firsttime = 0;
3451         while (!ARDOUR_UI::instance()->video_timeline->check_server()) {
3452                 if (firsttime++) {
3453                         warning << _("Could not connect to the Video Server. Start it or configure its access URL in Edit -> Preferences.") << endmsg;
3454                 }
3455                 VideoServerDialog *video_server_dialog = new VideoServerDialog (_session);
3456                 if (float_window) {
3457                         video_server_dialog->set_transient_for (*float_window);
3458                 }
3459
3460                 if (!Config->get_show_video_server_dialog() && firsttime < 2) {
3461                         video_server_dialog->hide();
3462                 } else {
3463                         ResponseType r = (ResponseType) video_server_dialog->run ();
3464                         video_server_dialog->hide();
3465                         if (r != RESPONSE_ACCEPT) { return false; }
3466                         if (video_server_dialog->show_again()) {
3467                                 Config->set_show_video_server_dialog(false);
3468                         }
3469                 }
3470
3471                 std::string icsd_exec = video_server_dialog->get_exec_path();
3472                 std::string icsd_docroot = video_server_dialog->get_docroot();
3473                 if (icsd_docroot.empty()) {icsd_docroot = X_("/");}
3474
3475                 GStatBuf sb;
3476                 if (!g_lstat (icsd_docroot.c_str(), &sb) == 0 || !S_ISDIR(sb.st_mode)) {
3477                         warning << _("Specified docroot is not an existing directory.") << endmsg;
3478                         continue;
3479                 }
3480 #ifndef PLATFORM_WINDOWS
3481                 if ( (!g_lstat (icsd_exec.c_str(), &sb) == 0)
3482                      || (sb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)) == 0 ) {
3483                         warning << _("Given Video Server is not an executable file.") << endmsg;
3484                         continue;
3485                 }
3486 #else
3487                 if ( (!g_lstat (icsd_exec.c_str(), &sb) == 0)
3488                      || (sb.st_mode & (S_IXUSR)) == 0 ) {
3489                         warning << _("Given Video Server is not an executable file.") << endmsg;
3490                         continue;
3491                 }
3492 #endif
3493
3494                 char **argp;
3495                 argp=(char**) calloc(9,sizeof(char*));
3496                 argp[0] = strdup(icsd_exec.c_str());
3497                 argp[1] = strdup("-P");
3498                 argp[2] = (char*) calloc(16,sizeof(char)); snprintf(argp[2], 16, "%s", video_server_dialog->get_listenaddr().c_str());
3499                 argp[3] = strdup("-p");
3500                 argp[4] = (char*) calloc(6,sizeof(char)); snprintf(argp[4], 6, "%i", video_server_dialog->get_listenport());
3501                 argp[5] = strdup("-C");
3502                 argp[6] = (char*) calloc(6,sizeof(char)); snprintf(argp[6], 6, "%i", video_server_dialog->get_cachesize());
3503                 argp[7] = strdup(icsd_docroot.c_str());
3504                 argp[8] = 0;
3505                 stop_video_server();
3506
3507                 if (icsd_docroot == X_("/")) {
3508                         Config->set_video_advanced_setup(false);
3509                 } else {
3510                         std::ostringstream osstream;
3511                         osstream << "http://localhost:" << video_server_dialog->get_listenport() << "/";
3512                         Config->set_video_server_url(osstream.str());
3513                         Config->set_video_server_docroot(icsd_docroot);
3514                         Config->set_video_advanced_setup(true);
3515                 }
3516
3517                 if (video_server_process) {
3518                         delete video_server_process;
3519                 }
3520
3521                 video_server_process = new SystemExec(icsd_exec, argp);
3522                 if (video_server_process->start()) {
3523                         warning << _("Cannot launch the video-server") << endmsg;
3524                         continue;
3525                 }
3526                 int timeout = 120; // 6 sec
3527                 while (!ARDOUR_UI::instance()->video_timeline->check_server()) {
3528                         Glib::usleep (50000);
3529                         if (--timeout <= 0 || !video_server_process->is_running()) break;
3530                 }
3531                 if (timeout <= 0) {
3532                         warning << _("Video-server was started but does not respond to requests...") << endmsg;
3533                 } else {
3534                         if (!ARDOUR_UI::instance()->video_timeline->check_server_docroot()) {
3535                                 delete video_server_process;
3536                                 video_server_process = 0;
3537                         }
3538                 }
3539         }
3540         return true;
3541 }
3542
3543 void
3544 ARDOUR_UI::add_video (Gtk::Window* float_window)
3545 {
3546         if (!_session) {
3547                 return;
3548         }
3549
3550         if (!start_video_server(float_window, false)) {
3551                 warning << _("Could not connect to the Video Server. Start it or configure its access URL in Edit -> Preferences.") << endmsg;
3552                 return;
3553         }
3554
3555         if (float_window) {
3556                 add_video_dialog->set_transient_for (*float_window);
3557         }
3558
3559         if (add_video_dialog->is_visible()) {
3560                 /* we're already doing this */
3561                 return;
3562         }
3563
3564         ResponseType r = (ResponseType) add_video_dialog->run ();
3565         add_video_dialog->hide();
3566         if (r != RESPONSE_ACCEPT) { return; }
3567
3568         bool local_file, orig_local_file;
3569         std::string path = add_video_dialog->file_name(local_file);
3570
3571         std::string orig_path = path;
3572         orig_local_file = local_file;
3573
3574         bool auto_set_session_fps = add_video_dialog->auto_set_session_fps();
3575
3576         if (local_file && !Glib::file_test(path, Glib::FILE_TEST_EXISTS)) {
3577                 warning << string_compose(_("could not open %1"), path) << endmsg;
3578                 return;
3579         }
3580         if (!local_file && path.length() == 0) {
3581                 warning << _("no video-file selected") << endmsg;
3582                 return;
3583         }
3584
3585         switch (add_video_dialog->import_option()) {
3586                 case VTL_IMPORT_TRANSCODE:
3587                         {
3588                                 TranscodeVideoDialog *transcode_video_dialog;
3589                                 transcode_video_dialog = new TranscodeVideoDialog (_session, path);
3590                                 ResponseType r = (ResponseType) transcode_video_dialog->run ();
3591                                 transcode_video_dialog->hide();
3592                                 if (r != RESPONSE_ACCEPT) {
3593                                         delete transcode_video_dialog;
3594                                         return;
3595                                 }
3596                                 if (!transcode_video_dialog->get_audiofile().empty()) {
3597                                         editor->embed_audio_from_video(
3598                                                         transcode_video_dialog->get_audiofile(),
3599                                                         video_timeline->get_offset(),
3600                                                         (transcode_video_dialog->import_option() != VTL_IMPORT_NO_VIDEO)
3601                                                         );
3602                                 }
3603                                 switch (transcode_video_dialog->import_option()) {
3604                                         case VTL_IMPORT_TRANSCODED:
3605                                                 path = transcode_video_dialog->get_filename();
3606                                                 local_file = true;
3607                                                 break;
3608                                         case VTL_IMPORT_REFERENCE:
3609                                                 break;
3610                                         default:
3611                                                 delete transcode_video_dialog;
3612                                                 return;
3613                                 }
3614                                 delete transcode_video_dialog;
3615                         }
3616                         break;
3617                 default:
3618                 case VTL_IMPORT_NONE:
3619                         break;
3620         }
3621
3622         /* strip _session->session_directory().video_path() from video file if possible */
3623         if (local_file && !path.compare(0, _session->session_directory().video_path().size(), _session->session_directory().video_path())) {
3624                  path=path.substr(_session->session_directory().video_path().size());
3625                  if (path.at(0) == G_DIR_SEPARATOR) {
3626                          path=path.substr(1);
3627                  }
3628         }
3629
3630         video_timeline->set_update_session_fps(auto_set_session_fps);
3631         if (video_timeline->video_file_info(path, local_file)) {
3632                 XMLNode* node = new XMLNode(X_("Videotimeline"));
3633                 node->add_property (X_("Filename"), path);
3634                 node->add_property (X_("AutoFPS"), auto_set_session_fps?X_("1"):X_("0"));
3635                 node->add_property (X_("LocalFile"), local_file?X_("1"):X_("0"));
3636                 if (orig_local_file) {
3637                         node->add_property (X_("OriginalVideoFile"), orig_path);
3638                 } else {
3639                         node->remove_property (X_("OriginalVideoFile"));
3640                 }
3641                 _session->add_extra_xml (*node);
3642                 _session->set_dirty ();
3643
3644                 _session->maybe_update_session_range(
3645                         std::max(video_timeline->get_offset(), (ARDOUR::frameoffset_t) 0),
3646                         std::max(video_timeline->get_offset() + video_timeline->get_duration(), (ARDOUR::frameoffset_t) 0));
3647
3648
3649                 if (add_video_dialog->launch_xjadeo() && local_file) {
3650                         editor->set_xjadeo_sensitive(true);
3651                         editor->toggle_xjadeo_proc(1);
3652                 } else {
3653                         editor->toggle_xjadeo_proc(0);
3654                 }
3655                 editor->toggle_ruler_video(true);
3656         }
3657 }
3658
3659 void
3660 ARDOUR_UI::remove_video ()
3661 {
3662         video_timeline->close_session();
3663         editor->toggle_ruler_video(false);
3664
3665         /* reset state */
3666         video_timeline->set_offset_locked(false);
3667         video_timeline->set_offset(0);
3668
3669         /* delete session state */
3670         XMLNode* node = new XMLNode(X_("Videotimeline"));
3671         _session->add_extra_xml(*node);
3672         node = new XMLNode(X_("Videomonitor"));
3673         _session->add_extra_xml(*node);
3674         stop_video_server();
3675 }
3676
3677 void
3678 ARDOUR_UI::flush_videotimeline_cache (bool localcacheonly)
3679 {
3680         if (localcacheonly) {
3681                 video_timeline->vmon_update();
3682         } else {
3683                 video_timeline->flush_cache();
3684         }
3685         editor->queue_visual_videotimeline_update();
3686 }
3687
3688 XMLNode*
3689 ARDOUR_UI::mixer_settings () const
3690 {
3691         XMLNode* node = 0;
3692
3693         if (_session) {
3694                 node = _session->instant_xml(X_("Mixer"));
3695         } else {
3696                 node = Config->instant_xml(X_("Mixer"));
3697         }
3698
3699         if (!node) {
3700                 node = new XMLNode (X_("Mixer"));
3701         }
3702
3703         return node;
3704 }
3705
3706 XMLNode*
3707 ARDOUR_UI::editor_settings () const
3708 {
3709         XMLNode* node = 0;
3710
3711         if (_session) {
3712                 node = _session->instant_xml(X_("Editor"));
3713         } else {
3714                 node = Config->instant_xml(X_("Editor"));
3715         }
3716
3717         if (!node) {
3718                 if (getenv("ARDOUR_INSTANT_XML_PATH")) {
3719                         node = Config->instant_xml(getenv("ARDOUR_INSTANT_XML_PATH"));
3720                 }
3721         }
3722
3723         if (!node) {
3724                 node = new XMLNode (X_("Editor"));
3725         }
3726
3727         return node;
3728 }
3729
3730 XMLNode*
3731 ARDOUR_UI::keyboard_settings () const
3732 {
3733         XMLNode* node = 0;
3734
3735         node = Config->extra_xml(X_("Keyboard"));
3736
3737         if (!node) {
3738                 node = new XMLNode (X_("Keyboard"));
3739         }
3740
3741         return node;
3742 }
3743
3744 void
3745 ARDOUR_UI::create_xrun_marker (framepos_t where)
3746 {
3747         editor->mouse_add_new_marker (where, false, true);
3748 }
3749
3750 void
3751 ARDOUR_UI::halt_on_xrun_message ()
3752 {
3753         MessageDialog msg (*editor,
3754                            _("Recording was stopped because your system could not keep up."));
3755         msg.run ();
3756 }
3757
3758 void
3759 ARDOUR_UI::xrun_handler (framepos_t where)
3760 {
3761         if (!_session) {
3762                 return;
3763         }
3764
3765         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::xrun_handler, where)
3766
3767         if (_session && Config->get_create_xrun_marker() && _session->actively_recording()) {
3768                 create_xrun_marker(where);
3769         }
3770
3771         if (_session && Config->get_stop_recording_on_xrun() && _session->actively_recording()) {
3772                 halt_on_xrun_message ();
3773         }
3774 }
3775
3776 void
3777 ARDOUR_UI::disk_overrun_handler ()
3778 {
3779         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::disk_overrun_handler)
3780
3781         if (!have_disk_speed_dialog_displayed) {
3782                 have_disk_speed_dialog_displayed = true;
3783                 MessageDialog* msg = new MessageDialog (*editor, string_compose (_("\
3784 The disk system on your computer\n\
3785 was not able to keep up with %1.\n\
3786 \n\
3787 Specifically, it failed to write data to disk\n\
3788 quickly enough to keep up with recording.\n"), PROGRAM_NAME));
3789                 msg->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
3790                 msg->show ();
3791         }
3792 }
3793
3794 void
3795 ARDOUR_UI::cancel_plugin_scan ()
3796 {
3797         PluginManager::instance().cancel_plugin_scan();
3798 }
3799
3800 static MessageDialog *scan_dlg = NULL;
3801
3802 void
3803 ARDOUR_UI::plugin_scan_dialog (std::string type, std::string plugin, bool can_cancel)
3804 {
3805         if (type == X_("closeme") && !(scan_dlg && scan_dlg->is_mapped())) {
3806                 return;
3807         }
3808
3809         const bool cancelled = PluginManager::instance().cancelled();
3810         if (type != X_("closeme") && !Config->get_show_plugin_scan_window()) {
3811                 if (cancelled && scan_dlg->is_mapped()) {
3812                         scan_dlg->hide();
3813                         gui_idle_handler();
3814                         return;
3815                 }
3816                 if (cancelled || !can_cancel) {
3817                         return;
3818                 }
3819         }
3820
3821         static Gtk::Button *cancel_button;
3822         if (!scan_dlg) {
3823                 scan_dlg = new MessageDialog("", false, MESSAGE_INFO, BUTTONS_NONE);
3824                 VBox* vbox = scan_dlg->get_vbox();
3825                 vbox->set_size_request(400,-1);
3826                 scan_dlg->set_title (_("Scanning for plugins"));
3827
3828                 cancel_button = manage(new Gtk::Button(_("Cancel plugin scan")));
3829                 cancel_button->set_name ("EditorGTKButton");
3830                 cancel_button->signal_clicked().connect ( mem_fun (*this, &ARDOUR_UI::cancel_plugin_scan) );
3831
3832                 scan_dlg->get_vbox()->pack_start ( *cancel_button, PACK_SHRINK);
3833         }
3834
3835         if (type == X_("closeme")) {
3836                 scan_dlg->hide();
3837         } else {
3838                 scan_dlg->set_message(type + ": " + Glib::path_get_basename(plugin));
3839                 scan_dlg->show_all();
3840         }
3841         cancel_button->set_sensitive(can_cancel && !cancelled);
3842
3843         gui_idle_handler();
3844 }
3845
3846 void
3847 ARDOUR_UI::gui_idle_handler ()
3848 {
3849         int timeout = 30;
3850         /* due to idle calls, gtk_events_pending() may always return true */
3851         while (gtk_events_pending() && --timeout) {
3852                 gtk_main_iteration ();
3853         }
3854 }
3855
3856 void
3857 ARDOUR_UI::disk_underrun_handler ()
3858 {
3859         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::disk_underrun_handler)
3860
3861         if (!have_disk_speed_dialog_displayed) {
3862                 have_disk_speed_dialog_displayed = true;
3863                 MessageDialog* msg = new MessageDialog (
3864                         *editor, string_compose (_("The disk system on your computer\n\
3865 was not able to keep up with %1.\n\
3866 \n\
3867 Specifically, it failed to read data from disk\n\
3868 quickly enough to keep up with playback.\n"), PROGRAM_NAME));
3869                 msg->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
3870                 msg->show ();
3871         }
3872 }
3873
3874 void
3875 ARDOUR_UI::disk_speed_dialog_gone (int /*ignored_response*/, MessageDialog* msg)
3876 {
3877         have_disk_speed_dialog_displayed = false;
3878         delete msg;
3879 }
3880
3881 void
3882 ARDOUR_UI::session_dialog (std::string msg)
3883 {
3884         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::session_dialog, msg)
3885
3886         MessageDialog* d;
3887
3888         if (editor) {
3889                 d = new MessageDialog (*editor, msg, false, MESSAGE_INFO, BUTTONS_OK, true);
3890         } else {
3891                 d = new MessageDialog (msg, false, MESSAGE_INFO, BUTTONS_OK, true);
3892         }
3893
3894         d->show_all ();
3895         d->run ();
3896         delete d;
3897 }
3898
3899 int
3900 ARDOUR_UI::pending_state_dialog ()
3901 {
3902         HBox* hbox = manage (new HBox());
3903         Image* image = manage (new Image (Stock::DIALOG_QUESTION, ICON_SIZE_DIALOG));
3904         ArdourDialog dialog (_("Crash Recovery"), true);
3905         Label  message (string_compose (_("\
3906 This session appears to have been in the\n\
3907 middle of recording when %1 or\n\
3908 the computer was shutdown.\n\
3909 \n\
3910 %1 can recover any captured audio for\n\
3911 you, or it can ignore it. Please decide\n\
3912 what you would like to do.\n"), PROGRAM_NAME));
3913         image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
3914         hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
3915         hbox->pack_end (message, PACK_EXPAND_PADDING, 12);
3916         dialog.get_vbox()->pack_start(*hbox, PACK_EXPAND_PADDING, 6);
3917         dialog.add_button (_("Ignore crash data"), RESPONSE_REJECT);
3918         dialog.add_button (_("Recover from crash"), RESPONSE_ACCEPT);
3919         dialog.set_default_response (RESPONSE_ACCEPT);
3920         dialog.set_position (WIN_POS_CENTER);
3921         message.show();
3922         image->show();
3923         hbox->show();
3924
3925         switch (dialog.run ()) {
3926         case RESPONSE_ACCEPT:
3927                 return 1;
3928         default:
3929                 return 0;
3930         }
3931 }
3932
3933 int
3934 ARDOUR_UI::sr_mismatch_dialog (framecnt_t desired, framecnt_t actual)
3935 {
3936         HBox* hbox = new HBox();
3937         Image* image = new Image (Stock::DIALOG_WARNING, ICON_SIZE_DIALOG);
3938         ArdourDialog dialog (_("Sample Rate Mismatch"), true);
3939         Label  message (string_compose (_("\
3940 This session was created with a sample rate of %1 Hz, but\n\
3941 %2 is currently running at %3 Hz.  If you load this session,\n\
3942 audio may be played at the wrong sample rate.\n"), desired, PROGRAM_NAME, actual));
3943
3944         image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
3945         hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
3946         hbox->pack_end (message, PACK_EXPAND_PADDING, 12);
3947         dialog.get_vbox()->pack_start(*hbox, PACK_EXPAND_PADDING, 6);
3948         dialog.add_button (_("Do not load session"), RESPONSE_REJECT);
3949         dialog.add_button (_("Load session anyway"), RESPONSE_ACCEPT);
3950         dialog.set_default_response (RESPONSE_ACCEPT);
3951         dialog.set_position (WIN_POS_CENTER);
3952         message.show();
3953         image->show();
3954         hbox->show();
3955
3956         switch (dialog.run()) {
3957         case RESPONSE_ACCEPT:
3958                 return 0;
3959         default:
3960                 break;
3961         }
3962
3963         return 1;
3964 }
3965
3966 int
3967 ARDOUR_UI::disconnect_from_engine ()
3968 {
3969         /* drop connection to AudioEngine::Halted so that we don't act
3970          *  as if the engine unexpectedly shut down
3971          */
3972
3973         halt_connection.disconnect ();
3974
3975         if (AudioEngine::instance()->stop ()) {
3976                 MessageDialog msg (*editor, _("Could not disconnect from Audio/MIDI engine"));
3977                 msg.run ();
3978                 return -1;
3979         } else {
3980                 AudioEngine::instance()->Halted.connect_same_thread (halt_connection, boost::bind (&ARDOUR_UI::engine_halted, this, _1, false));
3981         }
3982
3983         update_sample_rate (0);
3984         return 0;
3985 }
3986
3987 int
3988 ARDOUR_UI::reconnect_to_engine ()
3989 {
3990         if (AudioEngine::instance()->start ()) {
3991                 if (editor) {
3992                         MessageDialog msg (*editor,  _("Could not reconnect to the Audio/MIDI engine"));
3993                         msg.run ();
3994                 } else {
3995                         MessageDialog msg (_("Could not reconnect to the Audio/MIDI engine"));
3996                         msg.run ();
3997                 }
3998                 return -1;
3999         }
4000
4001         update_sample_rate (0);
4002         return 0;
4003 }
4004
4005 void
4006 ARDOUR_UI::use_config ()
4007 {
4008         XMLNode* node = Config->extra_xml (X_("TransportControllables"));
4009         if (node) {
4010                 set_transport_controllable_state (*node);
4011         }
4012 }
4013
4014 void
4015 ARDOUR_UI::update_transport_clocks (framepos_t pos)
4016 {
4017         if (Config->get_primary_clock_delta_edit_cursor()) {
4018                 primary_clock->set (pos, false, editor->get_preferred_edit_position());
4019         } else {
4020                 primary_clock->set (pos);
4021         }
4022
4023         if (Config->get_secondary_clock_delta_edit_cursor()) {
4024                 secondary_clock->set (pos, false, editor->get_preferred_edit_position());
4025         } else {
4026                 secondary_clock->set (pos);
4027         }
4028
4029         if (big_clock_window) {
4030                 big_clock->set (pos);
4031         }
4032         ARDOUR_UI::instance()->video_timeline->manual_seek_video_monitor(pos);
4033 }
4034
4035 void
4036 ARDOUR_UI::step_edit_status_change (bool yn)
4037 {
4038         // XXX should really store pre-step edit status of things
4039         // we make insensitive
4040
4041         if (yn) {
4042                 rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
4043                 rec_button.set_sensitive (false);
4044         } else {
4045                 rec_button.unset_active_state ();;
4046                 rec_button.set_sensitive (true);
4047         }
4048 }
4049
4050 void
4051 ARDOUR_UI::record_state_changed ()
4052 {
4053         ENSURE_GUI_THREAD (*this, &ARDOUR_UI::record_state_changed);
4054
4055         if (!_session || !big_clock_window) {
4056                 /* why bother - the clock isn't visible */
4057                 return;
4058         }
4059
4060         if (_session->record_status () == Session::Recording && _session->have_rec_enabled_track ()) {
4061                 big_clock->set_active (true);
4062         } else {
4063                 big_clock->set_active (false);
4064         }
4065 }
4066
4067 bool
4068 ARDOUR_UI::first_idle ()
4069 {
4070         if (_session) {
4071                 _session->allow_auto_play (true);
4072         }
4073
4074         if (editor) {
4075                 editor->first_idle();
4076         }
4077
4078         Keyboard::set_can_save_keybindings (true);
4079         return false;
4080 }
4081
4082 void
4083 ARDOUR_UI::store_clock_modes ()
4084 {
4085         XMLNode* node = new XMLNode(X_("ClockModes"));
4086
4087         for (vector<AudioClock*>::iterator x = AudioClock::clocks.begin(); x != AudioClock::clocks.end(); ++x) {
4088                 XMLNode* child = new XMLNode (X_("Clock"));
4089
4090                 child->add_property (X_("name"), (*x)->name());
4091                 child->add_property (X_("mode"), enum_2_string ((*x)->mode()));
4092                 child->add_property (X_("on"), ((*x)->off() ? X_("no") : X_("yes")));
4093
4094                 node->add_child_nocopy (*child);
4095         }
4096
4097         _session->add_extra_xml (*node);
4098         _session->set_dirty ();
4099 }
4100
4101 ARDOUR_UI::TransportControllable::TransportControllable (std::string name, ARDOUR_UI& u, ToggleType tp)
4102         : Controllable (name), ui (u), type(tp)
4103 {
4104
4105 }
4106
4107 void
4108 ARDOUR_UI::TransportControllable::set_value (double val)
4109 {
4110         if (val < 0.5) {
4111                 /* do nothing: these are radio-style actions */
4112                 return;
4113         }
4114
4115         const char *action = 0;
4116
4117         switch (type) {
4118         case Roll:
4119                 action = X_("Roll");
4120                 break;
4121         case Stop:
4122                 action = X_("Stop");
4123                 break;
4124         case GotoStart:
4125                 action = X_("GotoStart");
4126                 break;
4127         case GotoEnd:
4128                 action = X_("GotoEnd");
4129                 break;
4130         case AutoLoop:
4131                 action = X_("Loop");
4132                 break;
4133         case PlaySelection:
4134                 action = X_("PlaySelection");
4135                 break;
4136         case RecordEnable:
4137                 action = X_("Record");
4138                 break;
4139         default:
4140                 break;
4141         }
4142
4143         if (action == 0) {
4144                 return;
4145         }
4146
4147         Glib::RefPtr<Action> act = ActionManager::get_action ("Transport", action);
4148
4149         if (act) {
4150                 act->activate ();
4151         }
4152 }
4153
4154 double
4155 ARDOUR_UI::TransportControllable::get_value (void) const
4156 {
4157         float val = 0.0;
4158
4159         switch (type) {
4160         case Roll:
4161                 break;
4162         case Stop:
4163                 break;
4164         case GotoStart:
4165                 break;
4166         case GotoEnd:
4167                 break;
4168         case AutoLoop:
4169                 break;
4170         case PlaySelection:
4171                 break;
4172         case RecordEnable:
4173                 break;
4174         default:
4175                 break;
4176         }
4177
4178         return val;
4179 }
4180
4181 void
4182 ARDOUR_UI::setup_profile ()
4183 {
4184         if (gdk_screen_width() < 1200 || getenv ("ARDOUR_NARROW_SCREEN")) {
4185                 Profile->set_small_screen ();
4186         }
4187
4188         if (getenv ("ARDOUR_SAE")) {
4189                 Profile->set_sae ();
4190                 Profile->set_single_package ();
4191         }
4192 }
4193
4194 int
4195 ARDOUR_UI::missing_file (Session*s, std::string str, DataType type)
4196 {
4197         MissingFileDialog dialog (s, str, type);
4198
4199         dialog.show ();
4200         dialog.present ();
4201
4202         int result = dialog.run ();
4203         dialog.hide ();
4204
4205         switch (result) {
4206         case RESPONSE_OK:
4207                 break;
4208         default:
4209                 return 1; // quit entire session load
4210         }
4211
4212         result = dialog.get_action ();
4213
4214         return result;
4215 }
4216
4217 int
4218 ARDOUR_UI::ambiguous_file (std::string file, std::vector<std::string> hits)
4219 {
4220         AmbiguousFileDialog dialog (file, hits);
4221
4222         dialog.show ();
4223         dialog.present ();
4224
4225         dialog.run ();
4226         return dialog.get_which ();
4227 }
4228
4229 /** Allocate our thread-local buffers */
4230 void
4231 ARDOUR_UI::get_process_buffers ()
4232 {
4233         _process_thread->get_buffers ();
4234 }
4235
4236 /** Drop our thread-local buffers */
4237 void
4238 ARDOUR_UI::drop_process_buffers ()
4239 {
4240         _process_thread->drop_buffers ();
4241 }
4242
4243 void
4244 ARDOUR_UI::feedback_detected ()
4245 {
4246         _feedback_exists = true;
4247 }
4248
4249 void
4250 ARDOUR_UI::successful_graph_sort ()
4251 {
4252         _feedback_exists = false;
4253 }
4254
4255 void
4256 ARDOUR_UI::midi_panic ()
4257 {
4258         if (_session) {
4259                 _session->midi_panic();
4260         }
4261 }
4262
4263 void
4264 ARDOUR_UI::session_format_mismatch (std::string xml_path, std::string backup_path)
4265 {
4266         const char* start_big = "<span size=\"x-large\" weight=\"bold\">";
4267         const char* end_big = "</span>";
4268         const char* start_mono = "<tt>";
4269         const char* end_mono = "</tt>";
4270
4271         MessageDialog msg (string_compose (_("%4This is a session from an older version of %3%5\n\n"
4272                                              "%3 has copied the old session file\n\n%6%1%7\n\nto\n\n%6%2%7\n\n"
4273                                              "From now on, use the -2000 version with older versions of %3"),
4274                                            xml_path, backup_path, PROGRAM_NAME,
4275                                            start_big, end_big,
4276                                            start_mono, end_mono), true);
4277
4278         msg.run ();
4279 }
4280
4281
4282 void
4283 ARDOUR_UI::reset_peak_display ()
4284 {
4285         if (!_session || !_session->master_out() || !editor_meter) return;
4286         editor_meter->clear_meters();
4287         editor_meter_max_peak = -INFINITY;
4288         editor_meter_peak_display.set_name ("meterbridge peakindicator");
4289         editor_meter_peak_display.set_elements((ArdourButton::Element) (ArdourButton::Edge|ArdourButton::Body));
4290 }
4291
4292 void
4293 ARDOUR_UI::reset_group_peak_display (RouteGroup* group)
4294 {
4295         if (!_session || !_session->master_out()) return;
4296         if (group == _session->master_out()->route_group()) {
4297                 reset_peak_display ();
4298         }
4299 }
4300
4301 void
4302 ARDOUR_UI::reset_route_peak_display (Route* route)
4303 {
4304         if (!_session || !_session->master_out()) return;
4305         if (_session->master_out().get() == route) {
4306                 reset_peak_display ();
4307         }
4308 }
4309
4310 int
4311 ARDOUR_UI::do_audio_midi_setup (uint32_t desired_sample_rate)
4312 {
4313         audio_midi_setup->set_desired_sample_rate (desired_sample_rate);
4314         audio_midi_setup->set_position (WIN_POS_CENTER);
4315
4316         switch (audio_midi_setup->run()) {
4317         case Gtk::RESPONSE_OK:
4318                 return 0;
4319         case Gtk::RESPONSE_APPLY:
4320                 return 0;
4321         default:
4322                 return -1;
4323         }
4324 }
4325
4326