src/tools/dcpomatic_player.cc

   1 /*
   2     Copyright (C) 2017-2021 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     DCP-o-matic is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21 #include "wx/about_dialog.h"
  22 #include "wx/film_viewer.h"
  23 #include "wx/nag_dialog.h"
  24 #include "wx/player_config_dialog.h"
  25 #include "wx/player_information.h"
  26 #include "wx/player_stress_tester.h"
  27 #include "wx/playlist_controls.h"
  28 #include "wx/report_problem_dialog.h"
  29 #include "wx/standard_controls.h"
  30 #include "wx/system_information_dialog.h"
  31 #include "wx/timer_display.h"
  32 #include "wx/update_dialog.h"
  33 #include "wx/verify_dcp_dialog.h"
  34 #include "wx/verify_dcp_progress_dialog.h"
  35 #include "wx/wx_signal_manager.h"
  36 #include "wx/wx_util.h"
  37 #include "lib/compose.hpp"
  38 #include "lib/config.h"
  39 #include "lib/cross.h"
  40 #include "lib/dcp_content.h"
  41 #include "lib/dcp_examiner.h"
  42 #include "lib/dcpomatic_log.h"
  43 #include "lib/dcpomatic_socket.h"
  44 #include "lib/examine_content_job.h"
  45 #include "lib/ffmpeg_content.h"
  46 #include "lib/file_log.h"
  47 #include "lib/film.h"
  48 #include "lib/internet.h"
  49 #include "lib/job.h"
  50 #include "lib/job_manager.h"
  51 #include "lib/null_log.h"
  52 #include "lib/ratio.h"
  53 #include "lib/scoped_temporary.h"
  54 #include "lib/server.h"
  55 #include "lib/text_content.h"
  56 #include "lib/update_checker.h"
  57 #include "lib/util.h"
  58 #include "lib/verify_dcp_job.h"
  59 #include "lib/video_content.h"
  60 #include <dcp/cpl.h>
  61 #include <dcp/dcp.h>
  62 #include <dcp/raw_convert.h>
  63 #include <dcp/exceptions.h>
  64 #include <dcp/search.h>
  65 #include <wx/cmdline.h>
  66 #include <wx/display.h>
  67 #include <wx/preferences.h>
  68 #include <wx/progdlg.h>
  69 #include <wx/splash.h>
  70 #include <wx/stdpaths.h>
  71 #include <wx/wx.h>
  72 #ifdef __WXGTK__
  73 #include <X11/Xlib.h>
  74 #endif
  75 #include <boost/algorithm/string.hpp>
  76 #include <boost/bind/bind.hpp>
  77 #include <iostream>
  78
  79 #ifdef check
  80 #undef check
  81 #endif
  82
  83
  84 #define MAX_CPLS 32
  85
  86
  87 using std::cout;
  88 using std::dynamic_pointer_cast;
  89 using std::exception;
  90 using std::list;
  91 using std::make_shared;
  92 using std::shared_ptr;
  93 using std::string;
  94 using std::vector;
  95 using std::weak_ptr;
  96 using boost::bind;
  97 using boost::optional;
  98 using boost::scoped_array;
  99 using boost::thread;
 100 #if BOOST_VERSION >= 106100
 101 using namespace boost::placeholders;
 102 #endif
 103 using dcp::raw_convert;
 104 using namespace dcpomatic;
 105
 106
 107 enum {
 108         ID_file_open = 1,
 109         ID_file_add_ov,
 110         ID_file_add_kdm,
 111         ID_file_history,
 112         /* Allow spare IDs after _history for the recent files list */
 113         ID_file_close = 100,
 114         ID_view_cpl,
 115         /* Allow spare IDs for CPLs */
 116         ID_view_full_screen = 200,
 117         ID_view_dual_screen,
 118         ID_view_closed_captions,
 119         ID_view_scale_appropriate,
 120         ID_view_scale_full,
 121         ID_view_scale_half,
 122         ID_view_scale_quarter,
 123         ID_help_report_a_problem,
 124         ID_tools_verify,
 125         ID_tools_check_for_updates,
 126         ID_tools_timing,
 127         ID_tools_system_information,
 128         /* IDs for shortcuts (with no associated menu item) */
 129         ID_start_stop,
 130         ID_go_back_frame,
 131         ID_go_forward_frame,
 132         ID_go_back_small_amount,
 133         ID_go_forward_small_amount,
 134         ID_go_back_medium_amount,
 135         ID_go_forward_medium_amount,
 136         ID_go_back_large_amount,
 137         ID_go_forward_large_amount,
 138         ID_go_to_start,
 139         ID_go_to_end
 140 };
 141
 142 class DOMFrame : public wxFrame
 143 {
 144 public:
 145         DOMFrame ()
 146                 : wxFrame (nullptr, -1, _("DCP-o-matic Player"))
 147                 , _mode (Config::instance()->player_mode())
 148                 , _main_sizer (new wxBoxSizer(wxVERTICAL))
 149         {
 150                 dcpomatic_log = make_shared<NullLog>();
 151
 152 #if defined(DCPOMATIC_WINDOWS)
 153                 maybe_open_console ();
 154                 cout << "DCP-o-matic Player is starting." << "\n";
 155 #endif
 156
 157                 auto bar = new wxMenuBar;
 158                 setup_menu (bar);
 159                 set_menu_sensitivity ();
 160                 SetMenuBar (bar);
 161
 162 #ifdef DCPOMATIC_WINDOWS
 163                 SetIcon (wxIcon (std_to_wx ("id")));
 164 #endif
 165
 166                 _config_changed_connection = Config::instance()->Changed.connect (boost::bind (&DOMFrame::config_changed, this, _1));
 167                 update_from_config (Config::PLAYER_DEBUG_LOG);
 168
 169                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_open, this), ID_file_open);
 170                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_add_ov, this), ID_file_add_ov);
 171                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_add_kdm, this), ID_file_add_kdm);
 172                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_history, this, _1), ID_file_history, ID_file_history + HISTORY_SIZE);
 173                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_close, this), ID_file_close);
 174                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_exit, this), wxID_EXIT);
 175                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::edit_preferences, this), wxID_PREFERENCES);
 176                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_full_screen, this), ID_view_full_screen);
 177                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_dual_screen, this), ID_view_dual_screen);
 178                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_closed_captions, this), ID_view_closed_captions);
 179                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_cpl, this, _1), ID_view_cpl, ID_view_cpl + MAX_CPLS);
 180                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(0)), ID_view_scale_full);
 181                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(1)), ID_view_scale_half);
 182                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(2)), ID_view_scale_quarter);
 183                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::help_about, this), wxID_ABOUT);
 184                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::help_report_a_problem, this), ID_help_report_a_problem);
 185                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_verify, this), ID_tools_verify);
 186                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_check_for_updates, this), ID_tools_check_for_updates);
 187                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_timing, this), ID_tools_timing);
 188                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_system_information, this), ID_tools_system_information);
 189
 190                 /* Use a panel as the only child of the Frame so that we avoid
 191                    the dark-grey background on Windows.
 192                 */
 193                 _overall_panel = new wxPanel (this, wxID_ANY);
 194
 195                 _viewer = make_shared<FilmViewer>(_overall_panel);
 196                 if (Config::instance()->player_mode() == Config::PLAYER_MODE_DUAL) {
 197                         auto pc = new PlaylistControls (_overall_panel, _viewer);
 198                         _controls = pc;
 199                         pc->ResetFilm.connect (bind(&DOMFrame::reset_film_weak, this, _1));
 200                 } else {
 201                         _controls = new StandardControls (_overall_panel, _viewer, false);
 202                 }
 203                 _viewer->set_dcp_decode_reduction (Config::instance()->decode_reduction ());
 204                 _viewer->set_optimise_for_j2k (true);
 205                 _viewer->PlaybackPermitted.connect (bind(&DOMFrame::playback_permitted, this));
 206                 _viewer->TooManyDropped.connect (bind(&DOMFrame::too_many_frames_dropped, this));
 207                 _info = new PlayerInformation (_overall_panel, _viewer);
 208                 setup_main_sizer (Config::instance()->player_mode());
 209 #ifdef __WXOSX__
 210                 int accelerators = 12;
 211 #else
 212                 int accelerators = 11;
 213 #endif
 214
 215                 _stress.setup (this, _controls);
 216
 217                 wxAcceleratorEntry* accel = new wxAcceleratorEntry[accelerators];
 218                 accel[0].Set(wxACCEL_NORMAL,                WXK_SPACE, ID_start_stop);
 219                 accel[1].Set(wxACCEL_NORMAL,                WXK_LEFT,  ID_go_back_frame);
 220                 accel[2].Set(wxACCEL_NORMAL,                WXK_RIGHT, ID_go_forward_frame);
 221                 accel[3].Set(wxACCEL_SHIFT,                 WXK_LEFT,  ID_go_back_small_amount);
 222                 accel[4].Set(wxACCEL_SHIFT,                 WXK_RIGHT, ID_go_forward_small_amount);
 223                 accel[5].Set(wxACCEL_CTRL,                  WXK_LEFT,  ID_go_back_medium_amount);
 224                 accel[6].Set(wxACCEL_CTRL,                  WXK_RIGHT, ID_go_forward_medium_amount);
 225                 accel[7].Set(wxACCEL_SHIFT | wxACCEL_CTRL,  WXK_LEFT,  ID_go_back_large_amount);
 226                 accel[8].Set(wxACCEL_SHIFT | wxACCEL_CTRL,  WXK_RIGHT, ID_go_forward_large_amount);
 227                 accel[9].Set(wxACCEL_NORMAL,                WXK_HOME,  ID_go_to_start);
 228                 accel[10].Set(wxACCEL_NORMAL,               WXK_END,   ID_go_to_end);
 229 #ifdef __WXOSX__
 230                 accel[11].Set(wxACCEL_CTRL, static_cast<int>('W'), ID_file_close);
 231 #endif
 232                 wxAcceleratorTable accel_table (accelerators, accel);
 233                 SetAcceleratorTable (accel_table);
 234                 delete[] accel;
 235
 236                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::start_stop_pressed, this), ID_start_stop);
 237                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_back_frame, this),      ID_go_back_frame);
 238                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_forward_frame, this),   ID_go_forward_frame);
 239                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,   -60), ID_go_back_small_amount);
 240                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,    60), ID_go_forward_small_amount);
 241                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,  -600), ID_go_back_medium_amount);
 242                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,   600), ID_go_forward_medium_amount);
 243                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this, -3600), ID_go_back_large_amount);
 244                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,  3600), ID_go_forward_large_amount);
 245                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_to_start, this), ID_go_to_start);
 246                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_to_end,   this), ID_go_to_end);
 247
 248                 reset_film ();
 249
 250                 UpdateChecker::instance()->StateChanged.connect (boost::bind(&DOMFrame::update_checker_state_changed, this));
 251                 setup_screen ();
 252
 253                 _stress.LoadDCP.connect (boost::bind(&DOMFrame::load_dcp, this, _1));
 254         }
 255
 256         ~DOMFrame ()
 257         {
 258                 /* It's important that this is stopped before our frame starts destroying its children,
 259                  * otherwise UI elements that it depends on will disappear from under it.
 260                  */
 261                 _viewer.reset ();
 262         }
 263
 264         void setup_main_sizer (Config::PlayerMode mode)
 265         {
 266                 _main_sizer->Detach (_viewer->panel());
 267                 _main_sizer->Detach (_controls);
 268                 _main_sizer->Detach (_info);
 269                 if (mode != Config::PLAYER_MODE_DUAL) {
 270                         _main_sizer->Add (_viewer->panel(), 1, wxEXPAND);
 271                 }
 272                 _main_sizer->Add (_controls, mode == Config::PLAYER_MODE_DUAL ? 1 : 0, wxEXPAND | wxALL, 6);
 273                 _main_sizer->Add (_info, 0, wxEXPAND | wxALL, 6);
 274                 _overall_panel->SetSizer (_main_sizer);
 275                 _overall_panel->Layout ();
 276         }
 277
 278         bool playback_permitted ()
 279         {
 280                 if (!_film || !Config::instance()->respect_kdm_validity_periods()) {
 281                         return true;
 282                 }
 283
 284                 bool ok = true;
 285                 for (auto i: _film->content()) {
 286                         auto d = dynamic_pointer_cast<DCPContent>(i);
 287                         if (d && !d->kdm_timing_window_valid()) {
 288                                 ok = false;
 289                         }
 290                 }
 291
 292                 if (!ok) {
 293                         error_dialog (this, _("The KDM does not allow playback of this content at this time."));
 294                 }
 295
 296                 return ok;
 297         }
 298
 299
 300         void too_many_frames_dropped ()
 301         {
 302                 if (!Config::instance()->nagged(Config::NAG_TOO_MANY_DROPPED_FRAMES)) {
 303                         _viewer->stop ();
 304                 }
 305
 306                 NagDialog::maybe_nag (
 307                         this,
 308                         Config::NAG_TOO_MANY_DROPPED_FRAMES,
 309                         _(wxS("The player is dropping a lot of frames, so playback may not be accurate.\n\n"
 310                           "<b>This does not necessarily mean that the DCP you are playing is defective!</b>\n\n"
 311                           "You may be able to improve player performance by:\n"
 312                           "• choosing 'decode at half resolution' or 'decode at quarter resolution' from the View menu\n"
 313                           "• using a more powerful computer.\n"
 314                          ))
 315                         );
 316         }
 317
 318         void set_decode_reduction (optional<int> reduction)
 319         {
 320                 _viewer->set_dcp_decode_reduction (reduction);
 321                 _info->triggered_update ();
 322                 Config::instance()->set_decode_reduction (reduction);
 323         }
 324
 325         void load_dcp (boost::filesystem::path dir)
 326         {
 327                 DCPOMATIC_ASSERT (_film);
 328
 329                 reset_film ();
 330                 try {
 331                         _stress.set_suspended (true);
 332                         // here
 333                         auto dcp = make_shared<DCPContent>(dir);
 334                         auto job = make_shared<ExamineContentJob>(_film, dcp);
 335                         _examine_job_connection = job->Finished.connect(bind(&DOMFrame::add_dcp_to_film, this, weak_ptr<Job>(job), weak_ptr<Content>(dcp)));
 336                         JobManager::instance()->add (job);
 337                         bool const ok = display_progress (_("DCP-o-matic Player"), _("Loading content"));
 338                         if (!ok || !report_errors_from_last_job(this)) {
 339                                 return;
 340                         }
 341                         Config::instance()->add_to_player_history (dir);
 342                 } catch (ProjectFolderError &) {
 343                         error_dialog (
 344                                 this,
 345                                 wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())),
 346                                 _(
 347                                         "This looks like a DCP-o-matic project folder, which cannot be loaded into the player.  "
 348                                         "Choose the DCP directory inside the DCP-o-matic project folder if that's what you want to play."
 349                                  )
 350                                 );
 351                 } catch (dcp::ReadError& e) {
 352                         error_dialog (this, wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())), std_to_wx(e.what()));
 353                 } catch (DCPError& e) {
 354                         error_dialog (this, wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())), std_to_wx(e.what()));
 355                 }
 356         }
 357
 358         void add_dcp_to_film (weak_ptr<Job> weak_job, weak_ptr<Content> weak_content)
 359         {
 360                 auto job = weak_job.lock ();
 361                 if (!job || !job->finished_ok()) {
 362                         return;
 363                 }
 364
 365                 auto content = weak_content.lock ();
 366                 if (!content) {
 367                         return;
 368                 }
 369
 370                 _film->add_content (content);
 371                 _stress.set_suspended (false);
 372         }
 373
 374         void reset_film_weak (weak_ptr<Film> weak_film)
 375         {
 376                 auto film = weak_film.lock ();
 377                 if (film) {
 378                         reset_film (film);
 379                 }
 380         }
 381
 382         void reset_film (shared_ptr<Film> film = shared_ptr<Film>(new Film(optional<boost::filesystem::path>())))
 383         {
 384                 _film = film;
 385                 _film->set_tolerant (true);
 386                 _film->set_audio_channels (MAX_DCP_AUDIO_CHANNELS);
 387                 _viewer->set_film (_film);
 388                 _controls->set_film (_film);
 389                 _film->Change.connect (bind(&DOMFrame::film_changed, this, _1, _2));
 390                 _info->triggered_update ();
 391         }
 392
 393         void film_changed (ChangeType type, Film::Property property)
 394         {
 395                 if (type != ChangeType::DONE || property != Film::Property::CONTENT) {
 396                         return;
 397                 }
 398
 399                 if (_viewer->playing ()) {
 400                         _viewer->stop ();
 401                 }
 402
 403                 /* Start off as Flat */
 404                 _film->set_container (Ratio::from_id("185"));
 405
 406                 for (auto i: _film->content()) {
 407                         auto dcp = dynamic_pointer_cast<DCPContent>(i);
 408
 409                         for (auto j: i->text) {
 410                                 j->set_use (true);
 411                         }
 412
 413                         if (i->video) {
 414                                 auto const r = Ratio::nearest_from_ratio(i->video->size().ratio());
 415                                 if (r->id() == "239") {
 416                                         /* Any scope content means we use scope */
 417                                         _film->set_container(r);
 418                                 }
 419                         }
 420
 421                         /* Any 3D content means we use 3D mode */
 422                         if (i->video && i->video->frame_type() != VideoFrameType::TWO_D) {
 423                                 _film->set_three_d (true);
 424                         }
 425                 }
 426
 427                 _viewer->seek (DCPTime(), true);
 428                 _info->triggered_update ();
 429
 430                 set_menu_sensitivity ();
 431
 432                 auto old = _cpl_menu->GetMenuItems();
 433                 for (auto const& i: old) {
 434                         _cpl_menu->Remove (i);
 435                 }
 436
 437                 if (_film->content().size() == 1) {
 438                         /* Offer a CPL menu */
 439                         auto first = dynamic_pointer_cast<DCPContent>(_film->content().front());
 440                         if (first) {
 441                                 int id = ID_view_cpl;
 442                                 for (auto i: dcp::find_and_resolve_cpls(first->directories(), true)) {
 443                                         auto j = _cpl_menu->AppendRadioItem(
 444                                                 id,
 445                                                 wxString::Format("%s (%s)", std_to_wx(i->annotation_text().get_value_or("")).data(), std_to_wx(i->id()).data())
 446                                                 );
 447                                         j->Check(!first->cpl() || i->id() == *first->cpl());
 448                                         ++id;
 449                                 }
 450                         }
 451                 }
 452         }
 453
 454         void load_stress_script (boost::filesystem::path path)
 455         {
 456                 _stress.load_script (path);
 457         }
 458
 459 private:
 460
 461         void examine_content ()
 462         {
 463                 DCPOMATIC_ASSERT (_film);
 464                 auto dcp = dynamic_pointer_cast<DCPContent>(_film->content().front());
 465                 DCPOMATIC_ASSERT (dcp);
 466                 dcp->examine (_film, shared_ptr<Job>());
 467
 468                 /* Examining content re-creates the TextContent objects, so we must re-enable them */
 469                 for (auto i: dcp->text) {
 470                         i->set_use (true);
 471                 }
 472         }
 473
 474         bool report_errors_from_last_job (wxWindow* parent) const
 475         {
 476                 auto jm = JobManager::instance ();
 477
 478                 DCPOMATIC_ASSERT (!jm->get().empty());
 479
 480                 auto last = jm->get().back();
 481                 if (last->finished_in_error()) {
 482                         error_dialog(parent, wxString::Format(_("Could not load DCP.\n\n%s."), std_to_wx(last->error_summary()).data()), std_to_wx(last->error_details()));
 483                         return false;
 484                 }
 485
 486                 return true;
 487         }
 488
 489         void setup_menu (wxMenuBar* m)
 490         {
 491                 _file_menu = new wxMenu;
 492                 _file_menu->Append (ID_file_open, _("&Open...\tCtrl-O"));
 493                 _file_add_ov = _file_menu->Append (ID_file_add_ov, _("&Add OV..."));
 494                 _file_add_kdm = _file_menu->Append (ID_file_add_kdm, _("Add &KDM..."));
 495
 496                 _history_position = _file_menu->GetMenuItems().GetCount();
 497
 498                 _file_menu->AppendSeparator ();
 499                 _file_menu->Append (ID_file_close, _("&Close"));
 500                 _file_menu->AppendSeparator ();
 501
 502 #ifdef __WXOSX__
 503                 _file_menu->Append (wxID_EXIT, _("&Exit"));
 504 #else
 505                 _file_menu->Append (wxID_EXIT, _("&Quit"));
 506 #endif
 507
 508 #ifdef __WXOSX__
 509                 auto prefs = _file_menu->Append (wxID_PREFERENCES, _("&Preferences...\tCtrl-P"));
 510 #else
 511                 auto edit = new wxMenu;
 512                 auto prefs = edit->Append (wxID_PREFERENCES, _("&Preferences...\tCtrl-P"));
 513 #endif
 514
 515                 prefs->Enable (Config::instance()->have_write_permission());
 516
 517                 _cpl_menu = new wxMenu;
 518
 519                 auto view = new wxMenu;
 520                 auto c = Config::instance()->decode_reduction();
 521                 _view_cpl = view->Append(ID_view_cpl, _("CPL"), _cpl_menu);
 522                 view->AppendSeparator();
 523                 _view_full_screen = view->AppendCheckItem(ID_view_full_screen, _("Full screen\tF11"));
 524                 _view_dual_screen = view->AppendCheckItem(ID_view_dual_screen, _("Dual screen\tShift+F11"));
 525                 setup_menu ();
 526                 view->AppendSeparator();
 527                 view->Append(ID_view_closed_captions, _("Closed captions..."));
 528                 view->AppendSeparator();
 529                 view->AppendRadioItem(ID_view_scale_appropriate, _("Set decode resolution to match display"))->Check(!static_cast<bool>(c));
 530                 view->AppendRadioItem(ID_view_scale_full, _("Decode at full resolution"))->Check(c && c.get() == 0);
 531                 view->AppendRadioItem(ID_view_scale_half, _("Decode at half resolution"))->Check(c && c.get() == 1);
 532                 view->AppendRadioItem(ID_view_scale_quarter, _("Decode at quarter resolution"))->Check(c && c.get() == 2);
 533
 534                 auto tools = new wxMenu;
 535                 _tools_verify = tools->Append (ID_tools_verify, _("Verify DCP..."));
 536                 tools->AppendSeparator ();
 537                 tools->Append (ID_tools_check_for_updates, _("Check for updates"));
 538                 tools->Append (ID_tools_timing, _("Timing..."));
 539                 tools->Append (ID_tools_system_information, _("System information..."));
 540
 541                 auto help = new wxMenu;
 542 #ifdef __WXOSX__
 543                 help->Append (wxID_ABOUT, _("About DCP-o-matic"));
 544 #else
 545                 help->Append (wxID_ABOUT, _("About"));
 546 #endif
 547                 help->Append (ID_help_report_a_problem, _("Report a problem..."));
 548
 549                 m->Append (_file_menu, _("&File"));
 550 #ifndef __WXOSX__
 551                 m->Append (edit, _("&Edit"));
 552 #endif
 553                 m->Append (view, _("&View"));
 554                 m->Append (tools, _("&Tools"));
 555                 m->Append (help, _("&Help"));
 556         }
 557
 558         void file_open ()
 559         {
 560                 auto d = wxStandardPaths::Get().GetDocumentsDir();
 561                 if (Config::instance()->last_player_load_directory()) {
 562                         d = std_to_wx (Config::instance()->last_player_load_directory()->string());
 563                 }
 564
 565                 auto c = new wxDirDialog (this, _("Select DCP to open"), d, wxDEFAULT_DIALOG_STYLE | wxDD_DIR_MUST_EXIST);
 566
 567                 int r;
 568                 while (true) {
 569                         r = c->ShowModal ();
 570                         if (r == wxID_OK && c->GetPath() == wxStandardPaths::Get().GetDocumentsDir()) {
 571                                 error_dialog (this, _("You did not select a folder.  Make sure that you select a folder before clicking Open."));
 572                         } else {
 573                                 break;
 574                         }
 575                 }
 576
 577                 if (r == wxID_OK) {
 578                         boost::filesystem::path const dcp (wx_to_std (c->GetPath ()));
 579                         load_dcp (dcp);
 580                         Config::instance()->set_last_player_load_directory (dcp.parent_path());
 581                 }
 582
 583                 c->Destroy ();
 584         }
 585
 586         void file_add_ov ()
 587         {
 588                 auto c = new wxDirDialog (
 589                         this,
 590                         _("Select DCP to open as OV"),
 591                         wxStandardPaths::Get().GetDocumentsDir(),
 592                         wxDEFAULT_DIALOG_STYLE | wxDD_DIR_MUST_EXIST
 593                         );
 594
 595                 int r;
 596                 while (true) {
 597                         r = c->ShowModal ();
 598                         if (r == wxID_OK && c->GetPath() == wxStandardPaths::Get().GetDocumentsDir()) {
 599                                 error_dialog (this, _("You did not select a folder.  Make sure that you select a folder before clicking Open."));
 600                         } else {
 601                                 break;
 602                         }
 603                 }
 604
 605                 if (r == wxID_OK) {
 606                         DCPOMATIC_ASSERT (_film);
 607                         auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 608                         DCPOMATIC_ASSERT (dcp);
 609                         dcp->add_ov (wx_to_std(c->GetPath()));
 610                         JobManager::instance()->add(make_shared<ExamineContentJob>(_film, dcp));
 611                         bool const ok = display_progress (_("DCP-o-matic Player"), _("Loading content"));
 612                         if (!ok || !report_errors_from_last_job(this)) {
 613                                 return;
 614                         }
 615                         for (auto i: dcp->text) {
 616                                 i->set_use (true);
 617                         }
 618                         if (dcp->video) {
 619                                 auto const r = Ratio::nearest_from_ratio(dcp->video->size().ratio());
 620                                 if (r) {
 621                                         _film->set_container(r);
 622                                 }
 623                         }
 624                 }
 625
 626                 c->Destroy ();
 627                 _info->triggered_update ();
 628         }
 629
 630         void file_add_kdm ()
 631         {
 632                 auto d = new wxFileDialog (this, _("Select KDM"));
 633
 634                 if (d->ShowModal() == wxID_OK) {
 635                         DCPOMATIC_ASSERT (_film);
 636                         auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 637                         DCPOMATIC_ASSERT (dcp);
 638                         try {
 639                                 if (dcp) {
 640                                         _viewer->set_coalesce_player_changes (true);
 641                                         dcp->add_kdm (dcp::EncryptedKDM(dcp::file_to_string(wx_to_std(d->GetPath()), MAX_KDM_SIZE)));
 642                                         examine_content();
 643                                         _viewer->set_coalesce_player_changes (false);
 644                                 }
 645                         } catch (exception& e) {
 646                                 error_dialog (this, wxString::Format (_("Could not load KDM.")), std_to_wx(e.what()));
 647                                 d->Destroy ();
 648                                 return;
 649                         }
 650                 }
 651
 652                 d->Destroy ();
 653                 _info->triggered_update ();
 654         }
 655
 656         void file_history (wxCommandEvent& event)
 657         {
 658                 auto history = Config::instance()->player_history ();
 659                 int n = event.GetId() - ID_file_history;
 660                 if (n >= 0 && n < static_cast<int> (history.size ())) {
 661                         try {
 662                                 load_dcp (history[n]);
 663                         } catch (exception& e) {
 664                                 error_dialog (0, std_to_wx(String::compose(wx_to_std(_("Could not load DCP %1.")), history[n])), std_to_wx(e.what()));
 665                         }
 666                 }
 667         }
 668
 669         void file_close ()
 670         {
 671                 reset_film ();
 672                 _info->triggered_update ();
 673                 set_menu_sensitivity ();
 674         }
 675
 676         void file_exit ()
 677         {
 678                 Close ();
 679         }
 680
 681         void edit_preferences ()
 682         {
 683                 if (!Config::instance()->have_write_permission()) {
 684                         return;
 685                 }
 686
 687                 if (!_config_dialog) {
 688                         _config_dialog = create_player_config_dialog ();
 689                 }
 690                 _config_dialog->Show (this);
 691         }
 692
 693         void view_cpl (wxCommandEvent& ev)
 694         {
 695                 auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 696                 DCPOMATIC_ASSERT (dcp);
 697                 auto cpls = dcp::find_and_resolve_cpls (dcp->directories(), true);
 698                 int id = ev.GetId() - ID_view_cpl;
 699                 DCPOMATIC_ASSERT (id >= 0);
 700                 DCPOMATIC_ASSERT (id < int(cpls.size()));
 701                 auto i = cpls.begin();
 702                 while (id > 0) {
 703                         ++i;
 704                         --id;
 705                 }
 706
 707                 _viewer->set_coalesce_player_changes (true);
 708                 dcp->set_cpl ((*i)->id());
 709                 examine_content ();
 710                 _viewer->set_coalesce_player_changes (false);
 711
 712                 _info->triggered_update ();
 713         }
 714
 715         void view_full_screen ()
 716         {
 717                 if (_mode == Config::PLAYER_MODE_FULL) {
 718                         _mode = Config::PLAYER_MODE_WINDOW;
 719                 } else {
 720                         _mode = Config::PLAYER_MODE_FULL;
 721                 }
 722                 setup_screen ();
 723                 setup_menu ();
 724         }
 725
 726         void view_dual_screen ()
 727         {
 728                 if (_mode == Config::PLAYER_MODE_DUAL) {
 729                         _mode = Config::PLAYER_MODE_WINDOW;
 730                 } else {
 731                         _mode = Config::PLAYER_MODE_DUAL;
 732                 }
 733                 setup_screen ();
 734                 setup_menu ();
 735         }
 736
 737         void setup_menu ()
 738         {
 739                 if (_view_full_screen) {
 740                         _view_full_screen->Check (_mode == Config::PLAYER_MODE_FULL);
 741                 }
 742                 if (_view_dual_screen) {
 743                         _view_dual_screen->Check (_mode == Config::PLAYER_MODE_DUAL);
 744                 }
 745         }
 746
 747         void setup_screen ()
 748         {
 749                 _controls->Show (_mode != Config::PLAYER_MODE_FULL);
 750                 _info->Show (_mode != Config::PLAYER_MODE_FULL);
 751                 _overall_panel->SetBackgroundColour (_mode == Config::PLAYER_MODE_FULL ? wxColour(0, 0, 0) : wxNullColour);
 752                 ShowFullScreen (_mode == Config::PLAYER_MODE_FULL);
 753                 _viewer->set_pad_black (_mode != Config::PLAYER_MODE_WINDOW);
 754
 755                 if (_mode == Config::PLAYER_MODE_DUAL) {
 756                         _dual_screen = new wxFrame (this, wxID_ANY, wxT(""));
 757                         _dual_screen->SetBackgroundColour (wxColour(0, 0, 0));
 758                         _dual_screen->ShowFullScreen (true);
 759                         _viewer->panel()->Reparent (_dual_screen);
 760                         _dual_screen->Show ();
 761                         if (wxDisplay::GetCount() > 1) {
 762                                 switch (Config::instance()->image_display()) {
 763                                 case 0:
 764                                         _dual_screen->Move (0, 0);
 765                                         Move (wxDisplay(0U).GetClientArea().GetWidth(), 0);
 766                                         break;
 767                                 case 1:
 768                                         _dual_screen->Move (wxDisplay(0U).GetClientArea().GetWidth(), 0);
 769                                         // (0, 0) doesn't seem to work for some strange reason
 770                                         Move (8, 8);
 771                                         break;
 772                                 }
 773                         }
 774                 } else {
 775                         if (_dual_screen) {
 776                                 _viewer->panel()->Reparent (_overall_panel);
 777                                 _dual_screen->Destroy ();
 778                                 _dual_screen = 0;
 779                         }
 780                 }
 781
 782                 setup_main_sizer (_mode);
 783         }
 784
 785         void view_closed_captions ()
 786         {
 787                 _viewer->show_closed_captions ();
 788         }
 789
 790         void tools_verify ()
 791         {
 792                 auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 793                 DCPOMATIC_ASSERT (dcp);
 794
 795                 auto job = make_shared<VerifyDCPJob>(dcp->directories());
 796                 auto progress = new VerifyDCPProgressDialog(this, _("DCP-o-matic Player"));
 797                 bool const completed = progress->run (job);
 798                 progress->Destroy ();
 799                 if (!completed) {
 800                         return;
 801                 }
 802
 803                 auto d = new VerifyDCPDialog (this, job);
 804                 d->ShowModal ();
 805                 d->Destroy ();
 806         }
 807
 808         void tools_check_for_updates ()
 809         {
 810                 UpdateChecker::instance()->run ();
 811                 _update_news_requested = true;
 812         }
 813
 814         void tools_timing ()
 815         {
 816                 auto d = new TimerDisplay (this, _viewer->state_timer(), _viewer->gets());
 817                 d->ShowModal ();
 818                 d->Destroy ();
 819         }
 820
 821         void tools_system_information ()
 822         {
 823                 if (!_system_information_dialog) {
 824                         _system_information_dialog = new SystemInformationDialog (this, _viewer);
 825                 }
 826
 827                 _system_information_dialog->Show ();
 828         }
 829
 830         void help_about ()
 831         {
 832                 auto d = new AboutDialog (this);
 833                 d->ShowModal ();
 834                 d->Destroy ();
 835         }
 836
 837         void help_report_a_problem ()
 838         {
 839                 auto d = new ReportProblemDialog (this);
 840                 if (d->ShowModal () == wxID_OK) {
 841                         d->report ();
 842                 }
 843                 d->Destroy ();
 844         }
 845
 846         void update_checker_state_changed ()
 847         {
 848                 auto uc = UpdateChecker::instance ();
 849
 850                 bool const announce =
 851                         _update_news_requested ||
 852                         (uc->stable() && Config::instance()->check_for_updates()) ||
 853                         (uc->test() && Config::instance()->check_for_updates() && Config::instance()->check_for_test_updates());
 854
 855                 _update_news_requested = false;
 856
 857                 if (!announce) {
 858                         return;
 859                 }
 860
 861                 if (uc->state() == UpdateChecker::State::YES) {
 862                         auto dialog = new UpdateDialog (this, uc->stable (), uc->test ());
 863                         dialog->ShowModal ();
 864                         dialog->Destroy ();
 865                 } else if (uc->state() == UpdateChecker::State::FAILED) {
 866                         error_dialog (this, _("The DCP-o-matic download server could not be contacted."));
 867                 } else {
 868                         error_dialog (this, _("There are no new versions of DCP-o-matic available."));
 869                 }
 870
 871                 _update_news_requested = false;
 872         }
 873
 874         void config_changed (Config::Property prop)
 875         {
 876                 /* Instantly save any config changes when using the player GUI */
 877                 try {
 878                         Config::instance()->write_config();
 879                 } catch (FileError& e) {
 880                         if (prop != Config::HISTORY) {
 881                                 error_dialog (
 882                                         this,
 883                                         wxString::Format(
 884                                                 _("Could not write to config file at %s.  Your changes have not been saved."),
 885                                                 std_to_wx(e.file().string())
 886                                                 )
 887                                         );
 888                         }
 889                 } catch (exception& e) {
 890                         error_dialog (
 891                                 this,
 892                                 _("Could not write to config file.  Your changes have not been saved.")
 893                                 );
 894                 }
 895
 896                 update_from_config (prop);
 897         }
 898
 899         void update_from_config (Config::Property prop)
 900         {
 901                 for (int i = 0; i < _history_items; ++i) {
 902                         delete _file_menu->Remove (ID_file_history + i);
 903                 }
 904
 905                 if (_history_separator) {
 906                         _file_menu->Remove (_history_separator);
 907                 }
 908                 delete _history_separator;
 909                 _history_separator = nullptr;
 910
 911                 int pos = _history_position;
 912
 913                 /* Clear out non-existant history items before we re-build the menu */
 914                 Config::instance()->clean_player_history ();
 915                 auto history = Config::instance()->player_history ();
 916
 917                 if (!history.empty ()) {
 918                         _history_separator = _file_menu->InsertSeparator (pos++);
 919                 }
 920
 921                 for (size_t i = 0; i < history.size(); ++i) {
 922                         string s;
 923                         if (i < 9) {
 924                                 s = String::compose ("&%1 %2", i + 1, history[i].string());
 925                         } else {
 926                                 s = history[i].string();
 927                         }
 928                         _file_menu->Insert (pos++, ID_file_history + i, std_to_wx (s));
 929                 }
 930
 931                 _history_items = history.size ();
 932
 933                 if (prop == Config::PLAYER_DEBUG_LOG) {
 934                         auto p = Config::instance()->player_debug_log_file();
 935                         if (p) {
 936                                 dcpomatic_log = make_shared<FileLog>(*p);
 937                         } else {
 938                                 dcpomatic_log = make_shared<NullLog>();
 939                         }
 940                         dcpomatic_log->set_types (LogEntry::TYPE_GENERAL | LogEntry::TYPE_WARNING | LogEntry::TYPE_ERROR | LogEntry::TYPE_DEBUG_VIDEO_VIEW);
 941                 }
 942         }
 943
 944         void set_menu_sensitivity ()
 945         {
 946                 _tools_verify->Enable (static_cast<bool>(_film));
 947                 _file_add_ov->Enable (static_cast<bool>(_film));
 948                 _file_add_kdm->Enable (static_cast<bool>(_film));
 949                 _view_cpl->Enable (static_cast<bool>(_film));
 950         }
 951
 952         void start_stop_pressed ()
 953         {
 954                 if (_viewer->playing()) {
 955                         _viewer->stop();
 956                 } else {
 957                         _viewer->start();
 958                 }
 959         }
 960
 961         void go_back_frame ()
 962         {
 963                 _viewer->seek_by (-_viewer->one_video_frame(), true);
 964         }
 965
 966         void go_forward_frame ()
 967         {
 968                 _viewer->seek_by (_viewer->one_video_frame(), true);
 969         }
 970
 971         void go_seconds (int s)
 972         {
 973                 _viewer->seek_by (DCPTime::from_seconds(s), true);
 974         }
 975
 976         void go_to_start ()
 977         {
 978                 _viewer->seek (DCPTime(), true);
 979         }
 980
 981         void go_to_end ()
 982         {
 983                 _viewer->seek (_film->length() - _viewer->one_video_frame(), true);
 984         }
 985
 986         wxFrame* _dual_screen = nullptr;
 987         bool _update_news_requested = false;
 988         PlayerInformation* _info = nullptr;
 989         Config::PlayerMode _mode;
 990         wxPreferencesEditor* _config_dialog = nullptr;
 991         wxPanel* _overall_panel = nullptr;
 992         wxMenu* _file_menu = nullptr;
 993         wxMenuItem* _view_cpl = nullptr;
 994         wxMenu* _cpl_menu = nullptr;
 995         int _history_items = 0;
 996         int _history_position = 0;
 997         wxMenuItem* _history_separator = nullptr;
 998         shared_ptr<FilmViewer> _viewer;
 999         Controls* _controls;
1000         SystemInformationDialog* _system_information_dialog = nullptr;
1001         std::shared_ptr<Film> _film;
1002         boost::signals2::scoped_connection _config_changed_connection;
1003         boost::signals2::scoped_connection _examine_job_connection;
1004         wxMenuItem* _file_add_ov = nullptr;
1005         wxMenuItem* _file_add_kdm = nullptr;
1006         wxMenuItem* _tools_verify = nullptr;
1007         wxMenuItem* _view_full_screen = nullptr;
1008         wxMenuItem* _view_dual_screen = nullptr;
1009         wxSizer* _main_sizer = nullptr;
1010         PlayerStressTester _stress;
1011 };
1012
1013 static const wxCmdLineEntryDesc command_line_description[] = {
1014         { wxCMD_LINE_PARAM, 0, 0, "DCP to load or create", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1015         { wxCMD_LINE_OPTION, "c", "config", "Directory containing config.xml", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1016         { wxCMD_LINE_OPTION, "s", "stress", "File containing description of stress test", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1017         { wxCMD_LINE_NONE, "", "", "", wxCmdLineParamType (0), 0 }
1018 };
1019
1020 class PlayServer : public Server
1021 {
1022 public:
1023         explicit PlayServer (DOMFrame* frame)
1024                 : Server (PLAYER_PLAY_PORT)
1025                 , _frame (frame)
1026         {}
1027
1028         void handle (shared_ptr<Socket> socket) override
1029         {
1030                 try {
1031                         int const length = socket->read_uint32 ();
1032                         scoped_array<char> buffer (new char[length]);
1033                         socket->read (reinterpret_cast<uint8_t*> (buffer.get()), length);
1034                         string s (buffer.get());
1035                         signal_manager->when_idle (bind (&DOMFrame::load_dcp, _frame, s));
1036                         socket->write (reinterpret_cast<uint8_t const *> ("OK"), 3);
1037                 } catch (...) {
1038
1039                 }
1040         }
1041
1042 private:
1043         DOMFrame* _frame;
1044 };
1045
1046 /** @class App
1047  *  @brief The magic App class for wxWidgets.
1048  */
1049 class App : public wxApp
1050 {
1051 public:
1052         App ()
1053                 : wxApp ()
1054         {
1055 #ifdef DCPOMATIC_LINUX
1056                 XInitThreads ();
1057 #endif
1058         }
1059
1060 private:
1061
1062         bool OnInit () override
1063         {
1064                 wxSplashScreen* splash = nullptr;
1065                 try {
1066                         wxInitAllImageHandlers ();
1067
1068                         Config::FailedToLoad.connect (boost::bind (&App::config_failed_to_load, this));
1069                         Config::Warning.connect (boost::bind (&App::config_warning, this, _1));
1070
1071                         splash = maybe_show_splash ();
1072
1073                         SetAppName (_("DCP-o-matic Player"));
1074
1075                         if (!wxApp::OnInit()) {
1076                                 return false;
1077                         }
1078
1079 #ifdef DCPOMATIC_LINUX
1080                         unsetenv ("UBUNTU_MENUPROXY");
1081 #endif
1082
1083 #ifdef DCPOMATIC_OSX
1084                         make_foreground_application ();
1085 #endif
1086
1087                         dcpomatic_setup_path_encoding ();
1088
1089                         /* Enable i18n; this will create a Config object
1090                            to look for a force-configured language.  This Config
1091                            object will be wrong, however, because dcpomatic_setup
1092                            hasn't yet been called and there aren't any filters etc.
1093                            set up yet.
1094                         */
1095                         dcpomatic_setup_i18n ();
1096
1097                         /* Set things up, including filters etc.
1098                            which will now be internationalised correctly.
1099                         */
1100                         dcpomatic_setup ();
1101
1102                         /* Force the configuration to be re-loaded correctly next
1103                            time it is needed.
1104                         */
1105                         Config::drop ();
1106
1107                         signal_manager = new wxSignalManager (this);
1108
1109                         _frame = new DOMFrame ();
1110                         SetTopWindow (_frame);
1111                         _frame->Maximize ();
1112                         if (splash) {
1113                                 splash->Destroy ();
1114                                 splash = nullptr;
1115                         }
1116                         _frame->Show ();
1117
1118                         try {
1119                                 auto server = new PlayServer (_frame);
1120                                 new thread (boost::bind (&PlayServer::run, server));
1121                         } catch (std::exception& e) {
1122                                 /* This is not the end of the world; probably a failure to bind the server socket
1123                                  * because there's already another player running.
1124                                  */
1125                                 LOG_DEBUG_PLAYER ("Failed to start play server (%1)", e.what());
1126                         }
1127
1128                         if (!_dcp_to_load.empty() && boost::filesystem::is_directory (_dcp_to_load)) {
1129                                 try {
1130                                         _frame->load_dcp (_dcp_to_load);
1131                                 } catch (exception& e) {
1132                                         error_dialog (0, std_to_wx (String::compose (wx_to_std (_("Could not load DCP %1.")), _dcp_to_load)), std_to_wx(e.what()));
1133                                 }
1134                         }
1135
1136                         if (_stress) {
1137                                 try {
1138                                         _frame->load_stress_script (*_stress);
1139                                 } catch (exception& e) {
1140                                         error_dialog (0, wxString::Format("Could not load stress test file %s", std_to_wx(*_stress)));
1141                                 }
1142                         }
1143
1144                         Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
1145
1146                         if (Config::instance()->check_for_updates ()) {
1147                                 UpdateChecker::instance()->run ();
1148                         }
1149                 }
1150                 catch (exception& e)
1151                 {
1152                         if (splash) {
1153                                 splash->Destroy ();
1154                         }
1155                         error_dialog (0, _("DCP-o-matic Player could not start."), std_to_wx(e.what()));
1156                 }
1157
1158                 return true;
1159         }
1160
1161         void OnInitCmdLine (wxCmdLineParser& parser) override
1162         {
1163                 parser.SetDesc (command_line_description);
1164                 parser.SetSwitchChars (wxT ("-"));
1165         }
1166
1167         bool OnCmdLineParsed (wxCmdLineParser& parser) override
1168         {
1169                 if (parser.GetParamCount() > 0) {
1170                         _dcp_to_load = wx_to_std (parser.GetParam (0));
1171                 }
1172
1173                 wxString config;
1174                 if (parser.Found("c", &config)) {
1175                         Config::override_path = wx_to_std (config);
1176                 }
1177                 wxString stress;
1178                 if (parser.Found("s", &stress)) {
1179                         _stress = wx_to_std (stress);
1180                 }
1181
1182                 return true;
1183         }
1184
1185         void report_exception ()
1186         {
1187                 try {
1188                         throw;
1189                 } catch (FileError& e) {
1190                         error_dialog (
1191                                 0,
1192                                 wxString::Format (
1193                                         _("An exception occurred: %s (%s)\n\n") + REPORT_PROBLEM,
1194                                         std_to_wx (e.what()),
1195                                         std_to_wx (e.file().string().c_str ())
1196                                         )
1197                                 );
1198                 } catch (exception& e) {
1199                         error_dialog (
1200                                 0,
1201                                 wxString::Format (
1202                                         _("An exception occurred: %s.\n\n") + REPORT_PROBLEM,
1203                                         std_to_wx (e.what ())
1204                                         )
1205                                 );
1206                 } catch (...) {
1207                         error_dialog (0, _("An unknown exception occurred.") + "  " + REPORT_PROBLEM);
1208                 }
1209         }
1210
1211         /* An unhandled exception has occurred inside the main event loop */
1212         bool OnExceptionInMainLoop () override
1213         {
1214                 report_exception ();
1215                 /* This will terminate the program */
1216                 return false;
1217         }
1218
1219         void OnUnhandledException () override
1220         {
1221                 report_exception ();
1222         }
1223
1224         void idle ()
1225         {
1226                 signal_manager->ui_idle ();
1227         }
1228
1229         void config_failed_to_load ()
1230         {
1231                 message_dialog (_frame, _("The existing configuration failed to load.  Default values will be used instead.  These may take a short time to create."));
1232         }
1233
1234         void config_warning (string m)
1235         {
1236                 message_dialog (_frame, std_to_wx (m));
1237         }
1238
1239         DOMFrame* _frame = nullptr;
1240         string _dcp_to_load;
1241         boost::optional<string> _stress;
1242 };
1243
1244 IMPLEMENT_APP (App)