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/image.h"
  49 #include "lib/image_png.h"
  50 #include "lib/internet.h"
  51 #include "lib/job.h"
  52 #include "lib/job_manager.h"
  53 #include "lib/null_log.h"
  54 #include "lib/ratio.h"
  55 #include "lib/scoped_temporary.h"
  56 #include "lib/server.h"
  57 #include "lib/text_content.h"
  58 #include "lib/update_checker.h"
  59 #include "lib/util.h"
  60 #include "lib/verify_dcp_job.h"
  61 #include "lib/video_content.h"
  62 #include <dcp/cpl.h>
  63 #include <dcp/dcp.h>
  64 #include <dcp/exceptions.h>
  65 #include <dcp/raw_convert.h>
  66 #include <dcp/search.h>
  67 #include <dcp/warnings.h>
  68 LIBDCP_DISABLE_WARNINGS
  69 #include <wx/cmdline.h>
  70 #include <wx/display.h>
  71 #include <wx/preferences.h>
  72 #include <wx/progdlg.h>
  73 #include <wx/splash.h>
  74 #include <wx/stdpaths.h>
  75 #include <wx/wx.h>
  76 LIBDCP_ENABLE_WARNINGS
  77 #ifdef __WXGTK__
  78 #include <X11/Xlib.h>
  79 #endif
  80 #include <boost/algorithm/string.hpp>
  81 #include <boost/bind/bind.hpp>
  82 #include <iostream>
  83
  84 #ifdef check
  85 #undef check
  86 #endif
  87
  88
  89 #define MAX_CPLS 32
  90
  91
  92 using std::cout;
  93 using std::dynamic_pointer_cast;
  94 using std::exception;
  95 using std::list;
  96 using std::make_shared;
  97 using std::shared_ptr;
  98 using std::string;
  99 using std::vector;
 100 using std::weak_ptr;
 101 using boost::bind;
 102 using boost::optional;
 103 using boost::scoped_array;
 104 using boost::thread;
 105 #if BOOST_VERSION >= 106100
 106 using namespace boost::placeholders;
 107 #endif
 108 using dcp::raw_convert;
 109 using namespace dcpomatic;
 110
 111
 112 enum {
 113         ID_file_open = 1,
 114         ID_file_add_ov,
 115         ID_file_add_kdm,
 116         ID_file_history,
 117         /* Allow spare IDs after _history for the recent files list */
 118         ID_file_close = 100,
 119         ID_view_cpl,
 120         /* Allow spare IDs for CPLs */
 121         ID_view_full_screen = 200,
 122         ID_view_dual_screen,
 123         ID_view_closed_captions,
 124         ID_view_scale_appropriate,
 125         ID_view_scale_full,
 126         ID_view_scale_half,
 127         ID_view_scale_quarter,
 128         ID_help_report_a_problem,
 129         ID_tools_verify,
 130         ID_tools_check_for_updates,
 131         ID_tools_timing,
 132         ID_tools_system_information,
 133         /* IDs for shortcuts (with no associated menu item) */
 134         ID_start_stop,
 135         ID_go_back_frame,
 136         ID_go_forward_frame,
 137         ID_go_back_small_amount,
 138         ID_go_forward_small_amount,
 139         ID_go_back_medium_amount,
 140         ID_go_forward_medium_amount,
 141         ID_go_back_large_amount,
 142         ID_go_forward_large_amount,
 143         ID_go_to_start,
 144         ID_go_to_end
 145 };
 146
 147 class DOMFrame : public wxFrame
 148 {
 149 public:
 150         DOMFrame ()
 151                 : wxFrame (nullptr, -1, _("DCP-o-matic Player"))
 152                 , _mode (Config::instance()->player_mode())
 153                 , _main_sizer (new wxBoxSizer(wxVERTICAL))
 154         {
 155                 dcpomatic_log = make_shared<NullLog>();
 156
 157 #if defined(DCPOMATIC_WINDOWS)
 158                 maybe_open_console ();
 159                 cout << "DCP-o-matic Player is starting." << "\n";
 160 #endif
 161
 162                 auto bar = new wxMenuBar;
 163                 setup_menu (bar);
 164                 set_menu_sensitivity ();
 165                 SetMenuBar (bar);
 166
 167 #ifdef DCPOMATIC_WINDOWS
 168                 SetIcon (wxIcon (std_to_wx ("id")));
 169 #endif
 170
 171                 _config_changed_connection = Config::instance()->Changed.connect (boost::bind (&DOMFrame::config_changed, this, _1));
 172                 update_from_config (Config::PLAYER_DEBUG_LOG);
 173
 174                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_open, this), ID_file_open);
 175                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_add_ov, this), ID_file_add_ov);
 176                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_add_kdm, this), ID_file_add_kdm);
 177                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_history, this, _1), ID_file_history, ID_file_history + HISTORY_SIZE);
 178                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_close, this), ID_file_close);
 179                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_exit, this), wxID_EXIT);
 180                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::edit_preferences, this), wxID_PREFERENCES);
 181                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_full_screen, this), ID_view_full_screen);
 182                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_dual_screen, this), ID_view_dual_screen);
 183                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_closed_captions, this), ID_view_closed_captions);
 184                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::view_cpl, this, _1), ID_view_cpl, ID_view_cpl + MAX_CPLS);
 185                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(0)), ID_view_scale_full);
 186                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(1)), ID_view_scale_half);
 187                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::set_decode_reduction, this, optional<int>(2)), ID_view_scale_quarter);
 188                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::help_about, this), wxID_ABOUT);
 189                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::help_report_a_problem, this), ID_help_report_a_problem);
 190                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_verify, this), ID_tools_verify);
 191                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_check_for_updates, this), ID_tools_check_for_updates);
 192                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_timing, this), ID_tools_timing);
 193                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::tools_system_information, this), ID_tools_system_information);
 194
 195                 /* Use a panel as the only child of the Frame so that we avoid
 196                    the dark-grey background on Windows.
 197                 */
 198                 _overall_panel = new wxPanel (this, wxID_ANY);
 199
 200                 _viewer = make_shared<FilmViewer>(_overall_panel);
 201                 if (Config::instance()->player_mode() == Config::PLAYER_MODE_DUAL) {
 202                         auto pc = new PlaylistControls (_overall_panel, _viewer);
 203                         _controls = pc;
 204                         pc->ResetFilm.connect (bind(&DOMFrame::reset_film_weak, this, _1));
 205                 } else {
 206                         _controls = new StandardControls (_overall_panel, _viewer, false);
 207                 }
 208                 _viewer->set_dcp_decode_reduction (Config::instance()->decode_reduction ());
 209                 _viewer->set_optimise_for_j2k (true);
 210                 _viewer->PlaybackPermitted.connect (bind(&DOMFrame::playback_permitted, this));
 211                 _viewer->TooManyDropped.connect (bind(&DOMFrame::too_many_frames_dropped, this));
 212                 _info = new PlayerInformation (_overall_panel, _viewer);
 213                 setup_main_sizer (Config::instance()->player_mode());
 214 #ifdef __WXOSX__
 215                 int accelerators = 12;
 216 #else
 217                 int accelerators = 11;
 218 #endif
 219
 220                 _stress.setup (this, _controls);
 221
 222                 wxAcceleratorEntry* accel = new wxAcceleratorEntry[accelerators];
 223                 accel[0].Set(wxACCEL_NORMAL,                WXK_SPACE, ID_start_stop);
 224                 accel[1].Set(wxACCEL_NORMAL,                WXK_LEFT,  ID_go_back_frame);
 225                 accel[2].Set(wxACCEL_NORMAL,                WXK_RIGHT, ID_go_forward_frame);
 226                 accel[3].Set(wxACCEL_SHIFT,                 WXK_LEFT,  ID_go_back_small_amount);
 227                 accel[4].Set(wxACCEL_SHIFT,                 WXK_RIGHT, ID_go_forward_small_amount);
 228                 accel[5].Set(wxACCEL_CTRL,                  WXK_LEFT,  ID_go_back_medium_amount);
 229                 accel[6].Set(wxACCEL_CTRL,                  WXK_RIGHT, ID_go_forward_medium_amount);
 230                 accel[7].Set(wxACCEL_SHIFT | wxACCEL_CTRL,  WXK_LEFT,  ID_go_back_large_amount);
 231                 accel[8].Set(wxACCEL_SHIFT | wxACCEL_CTRL,  WXK_RIGHT, ID_go_forward_large_amount);
 232                 accel[9].Set(wxACCEL_NORMAL,                WXK_HOME,  ID_go_to_start);
 233                 accel[10].Set(wxACCEL_NORMAL,               WXK_END,   ID_go_to_end);
 234 #ifdef __WXOSX__
 235                 accel[11].Set(wxACCEL_CTRL, static_cast<int>('W'), ID_file_close);
 236 #endif
 237                 wxAcceleratorTable accel_table (accelerators, accel);
 238                 SetAcceleratorTable (accel_table);
 239                 delete[] accel;
 240
 241                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::start_stop_pressed, this), ID_start_stop);
 242                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_back_frame, this),      ID_go_back_frame);
 243                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_forward_frame, this),   ID_go_forward_frame);
 244                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,   -60), ID_go_back_small_amount);
 245                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,    60), ID_go_forward_small_amount);
 246                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,  -600), ID_go_back_medium_amount);
 247                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,   600), ID_go_forward_medium_amount);
 248                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this, -3600), ID_go_back_large_amount);
 249                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_seconds,  this,  3600), ID_go_forward_large_amount);
 250                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_to_start, this), ID_go_to_start);
 251                 Bind (wxEVT_MENU, boost::bind(&DOMFrame::go_to_end,   this), ID_go_to_end);
 252
 253                 reset_film ();
 254
 255                 UpdateChecker::instance()->StateChanged.connect (boost::bind(&DOMFrame::update_checker_state_changed, this));
 256                 setup_screen ();
 257
 258                 _stress.LoadDCP.connect (boost::bind(&DOMFrame::load_dcp, this, _1));
 259         }
 260
 261         ~DOMFrame ()
 262         {
 263                 /* It's important that this is stopped before our frame starts destroying its children,
 264                  * otherwise UI elements that it depends on will disappear from under it.
 265                  */
 266                 _viewer.reset ();
 267         }
 268
 269         void setup_main_sizer (Config::PlayerMode mode)
 270         {
 271                 _main_sizer->Detach (_viewer->panel());
 272                 _main_sizer->Detach (_controls);
 273                 _main_sizer->Detach (_info);
 274                 if (mode != Config::PLAYER_MODE_DUAL) {
 275                         _main_sizer->Add (_viewer->panel(), 1, wxEXPAND);
 276                 }
 277                 _main_sizer->Add (_controls, mode == Config::PLAYER_MODE_DUAL ? 1 : 0, wxEXPAND | wxALL, 6);
 278                 _main_sizer->Add (_info, 0, wxEXPAND | wxALL, 6);
 279                 _overall_panel->SetSizer (_main_sizer);
 280                 _overall_panel->Layout ();
 281         }
 282
 283         bool playback_permitted ()
 284         {
 285                 if (!_film || !Config::instance()->respect_kdm_validity_periods()) {
 286                         return true;
 287                 }
 288
 289                 bool ok = true;
 290                 for (auto i: _film->content()) {
 291                         auto d = dynamic_pointer_cast<DCPContent>(i);
 292                         if (d && !d->kdm_timing_window_valid()) {
 293                                 ok = false;
 294                         }
 295                 }
 296
 297                 if (!ok) {
 298                         error_dialog (this, _("The KDM does not allow playback of this content at this time."));
 299                 }
 300
 301                 return ok;
 302         }
 303
 304
 305         void too_many_frames_dropped ()
 306         {
 307                 if (!Config::instance()->nagged(Config::NAG_TOO_MANY_DROPPED_FRAMES)) {
 308                         _viewer->stop ();
 309                 }
 310
 311                 NagDialog::maybe_nag (
 312                         this,
 313                         Config::NAG_TOO_MANY_DROPPED_FRAMES,
 314                         _(wxS("The player is dropping a lot of frames, so playback may not be accurate.\n\n"
 315                           "<b>This does not necessarily mean that the DCP you are playing is defective!</b>\n\n"
 316                           "You may be able to improve player performance by:\n"
 317                           "• choosing 'decode at half resolution' or 'decode at quarter resolution' from the View menu\n"
 318                           "• using a more powerful computer.\n"
 319                          ))
 320                         );
 321         }
 322
 323         void set_decode_reduction (optional<int> reduction)
 324         {
 325                 _viewer->set_dcp_decode_reduction (reduction);
 326                 _info->triggered_update ();
 327                 Config::instance()->set_decode_reduction (reduction);
 328         }
 329
 330         void load_dcp (boost::filesystem::path dir)
 331         {
 332                 DCPOMATIC_ASSERT (_film);
 333
 334                 reset_film ();
 335                 try {
 336                         _stress.set_suspended (true);
 337                         // here
 338                         auto dcp = make_shared<DCPContent>(dir);
 339                         auto job = make_shared<ExamineContentJob>(_film, dcp);
 340                         _examine_job_connection = job->Finished.connect(bind(&DOMFrame::add_dcp_to_film, this, weak_ptr<Job>(job), weak_ptr<Content>(dcp)));
 341                         JobManager::instance()->add (job);
 342                         bool const ok = display_progress (_("DCP-o-matic Player"), _("Loading content"));
 343                         if (!ok || !report_errors_from_last_job(this)) {
 344                                 return;
 345                         }
 346                         Config::instance()->add_to_player_history (dir);
 347                 } catch (ProjectFolderError &) {
 348                         error_dialog (
 349                                 this,
 350                                 wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())),
 351                                 _(
 352                                         "This looks like a DCP-o-matic project folder, which cannot be loaded into the player.  "
 353                                         "Choose the DCP directory inside the DCP-o-matic project folder if that's what you want to play."
 354                                  )
 355                                 );
 356                 } catch (dcp::ReadError& e) {
 357                         error_dialog (this, wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())), std_to_wx(e.what()));
 358                 } catch (DCPError& e) {
 359                         error_dialog (this, wxString::Format(_("Could not load a DCP from %s"), std_to_wx(dir.string())), std_to_wx(e.what()));
 360                 }
 361         }
 362
 363         void add_dcp_to_film (weak_ptr<Job> weak_job, weak_ptr<Content> weak_content)
 364         {
 365                 auto job = weak_job.lock ();
 366                 if (!job || !job->finished_ok()) {
 367                         return;
 368                 }
 369
 370                 auto content = weak_content.lock ();
 371                 if (!content) {
 372                         return;
 373                 }
 374
 375                 _film->add_content (content);
 376                 _stress.set_suspended (false);
 377         }
 378
 379         void reset_film_weak (weak_ptr<Film> weak_film)
 380         {
 381                 auto film = weak_film.lock ();
 382                 if (film) {
 383                         reset_film (film);
 384                 }
 385         }
 386
 387         void reset_film (shared_ptr<Film> film = shared_ptr<Film>(new Film(optional<boost::filesystem::path>())))
 388         {
 389                 _film = film;
 390                 _film->set_tolerant (true);
 391                 _film->set_audio_channels (MAX_DCP_AUDIO_CHANNELS);
 392                 _viewer->set_film (_film);
 393                 _controls->set_film (_film);
 394                 _film->Change.connect (bind(&DOMFrame::film_changed, this, _1, _2));
 395                 _info->triggered_update ();
 396         }
 397
 398         void film_changed (ChangeType type, Film::Property property)
 399         {
 400                 if (type != ChangeType::DONE || property != Film::Property::CONTENT) {
 401                         return;
 402                 }
 403
 404                 if (_viewer->playing ()) {
 405                         _viewer->stop ();
 406                 }
 407
 408                 /* Start off as Flat */
 409                 _film->set_container (Ratio::from_id("185"));
 410
 411                 for (auto i: _film->content()) {
 412                         auto dcp = dynamic_pointer_cast<DCPContent>(i);
 413
 414                         for (auto j: i->text) {
 415                                 j->set_use (true);
 416                         }
 417
 418                         if (i->video) {
 419                                 auto const r = Ratio::nearest_from_ratio(i->video->size().ratio());
 420                                 if (r->id() == "239") {
 421                                         /* Any scope content means we use scope */
 422                                         _film->set_container(r);
 423                                 }
 424                         }
 425
 426                         /* Any 3D content means we use 3D mode */
 427                         if (i->video && i->video->frame_type() != VideoFrameType::TWO_D) {
 428                                 _film->set_three_d (true);
 429                         }
 430                 }
 431
 432                 _viewer->seek (DCPTime(), true);
 433                 _info->triggered_update ();
 434
 435                 set_menu_sensitivity ();
 436
 437                 auto old = _cpl_menu->GetMenuItems();
 438                 for (auto const& i: old) {
 439                         _cpl_menu->Remove (i);
 440                 }
 441
 442                 if (_film->content().size() == 1) {
 443                         /* Offer a CPL menu */
 444                         auto first = dynamic_pointer_cast<DCPContent>(_film->content().front());
 445                         if (first) {
 446                                 int id = ID_view_cpl;
 447                                 for (auto i: dcp::find_and_resolve_cpls(first->directories(), true)) {
 448                                         auto j = _cpl_menu->AppendRadioItem(
 449                                                 id,
 450                                                 wxString::Format("%s (%s)", std_to_wx(i->annotation_text().get_value_or("")).data(), std_to_wx(i->id()).data())
 451                                                 );
 452                                         j->Check(!first->cpl() || i->id() == *first->cpl());
 453                                         ++id;
 454                                 }
 455                         }
 456                 }
 457         }
 458
 459         void load_stress_script (boost::filesystem::path path)
 460         {
 461                 _stress.load_script (path);
 462         }
 463
 464 private:
 465
 466         void examine_content ()
 467         {
 468                 DCPOMATIC_ASSERT (_film);
 469                 auto dcp = dynamic_pointer_cast<DCPContent>(_film->content().front());
 470                 DCPOMATIC_ASSERT (dcp);
 471                 dcp->examine (_film, shared_ptr<Job>());
 472
 473                 /* Examining content re-creates the TextContent objects, so we must re-enable them */
 474                 for (auto i: dcp->text) {
 475                         i->set_use (true);
 476                 }
 477         }
 478
 479         bool report_errors_from_last_job (wxWindow* parent) const
 480         {
 481                 auto jm = JobManager::instance ();
 482
 483                 DCPOMATIC_ASSERT (!jm->get().empty());
 484
 485                 auto last = jm->get().back();
 486                 if (last->finished_in_error()) {
 487                         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()));
 488                         return false;
 489                 }
 490
 491                 return true;
 492         }
 493
 494         void setup_menu (wxMenuBar* m)
 495         {
 496                 _file_menu = new wxMenu;
 497                 _file_menu->Append (ID_file_open, _("&Open...\tCtrl-O"));
 498                 _file_add_ov = _file_menu->Append (ID_file_add_ov, _("&Add OV..."));
 499                 _file_add_kdm = _file_menu->Append (ID_file_add_kdm, _("Add &KDM..."));
 500
 501                 _history_position = _file_menu->GetMenuItems().GetCount();
 502
 503                 _file_menu->AppendSeparator ();
 504                 _file_menu->Append (ID_file_close, _("&Close"));
 505                 _file_menu->AppendSeparator ();
 506
 507 #ifdef __WXOSX__
 508                 _file_menu->Append (wxID_EXIT, _("&Exit"));
 509 #else
 510                 _file_menu->Append (wxID_EXIT, _("&Quit"));
 511 #endif
 512
 513 #ifdef __WXOSX__
 514                 auto prefs = _file_menu->Append (wxID_PREFERENCES, _("&Preferences...\tCtrl-P"));
 515 #else
 516                 auto edit = new wxMenu;
 517                 auto prefs = edit->Append (wxID_PREFERENCES, _("&Preferences...\tCtrl-P"));
 518 #endif
 519
 520                 prefs->Enable (Config::instance()->have_write_permission());
 521
 522                 _cpl_menu = new wxMenu;
 523
 524                 auto view = new wxMenu;
 525                 auto c = Config::instance()->decode_reduction();
 526                 _view_cpl = view->Append(ID_view_cpl, _("CPL"), _cpl_menu);
 527                 view->AppendSeparator();
 528                 _view_full_screen = view->AppendCheckItem(ID_view_full_screen, _("Full screen\tF11"));
 529                 _view_dual_screen = view->AppendCheckItem(ID_view_dual_screen, _("Dual screen\tShift+F11"));
 530                 setup_menu ();
 531                 view->AppendSeparator();
 532                 view->Append(ID_view_closed_captions, _("Closed captions..."));
 533                 view->AppendSeparator();
 534                 view->AppendRadioItem(ID_view_scale_appropriate, _("Set decode resolution to match display"))->Check(!static_cast<bool>(c));
 535                 view->AppendRadioItem(ID_view_scale_full, _("Decode at full resolution"))->Check(c && c.get() == 0);
 536                 view->AppendRadioItem(ID_view_scale_half, _("Decode at half resolution"))->Check(c && c.get() == 1);
 537                 view->AppendRadioItem(ID_view_scale_quarter, _("Decode at quarter resolution"))->Check(c && c.get() == 2);
 538
 539                 auto tools = new wxMenu;
 540                 _tools_verify = tools->Append (ID_tools_verify, _("Verify DCP..."));
 541                 tools->AppendSeparator ();
 542                 tools->Append (ID_tools_check_for_updates, _("Check for updates"));
 543                 tools->Append (ID_tools_timing, _("Timing..."));
 544                 tools->Append (ID_tools_system_information, _("System information..."));
 545
 546                 auto help = new wxMenu;
 547 #ifdef __WXOSX__
 548                 help->Append (wxID_ABOUT, _("About DCP-o-matic"));
 549 #else
 550                 help->Append (wxID_ABOUT, _("About"));
 551 #endif
 552                 help->Append (ID_help_report_a_problem, _("Report a problem..."));
 553
 554                 m->Append (_file_menu, _("&File"));
 555 #ifndef __WXOSX__
 556                 m->Append (edit, _("&Edit"));
 557 #endif
 558                 m->Append (view, _("&View"));
 559                 m->Append (tools, _("&Tools"));
 560                 m->Append (help, _("&Help"));
 561         }
 562
 563         void file_open ()
 564         {
 565                 auto d = wxStandardPaths::Get().GetDocumentsDir();
 566                 if (Config::instance()->last_player_load_directory()) {
 567                         d = std_to_wx (Config::instance()->last_player_load_directory()->string());
 568                 }
 569
 570                 auto c = new wxDirDialog (this, _("Select DCP to open"), d, wxDEFAULT_DIALOG_STYLE | wxDD_DIR_MUST_EXIST);
 571
 572                 int r;
 573                 while (true) {
 574                         r = c->ShowModal ();
 575                         if (r == wxID_OK && c->GetPath() == wxStandardPaths::Get().GetDocumentsDir()) {
 576                                 error_dialog (this, _("You did not select a folder.  Make sure that you select a folder before clicking Open."));
 577                         } else {
 578                                 break;
 579                         }
 580                 }
 581
 582                 if (r == wxID_OK) {
 583                         boost::filesystem::path const dcp (wx_to_std (c->GetPath ()));
 584                         load_dcp (dcp);
 585                         Config::instance()->set_last_player_load_directory (dcp.parent_path());
 586                 }
 587
 588                 c->Destroy ();
 589         }
 590
 591         void file_add_ov ()
 592         {
 593                 auto c = new wxDirDialog (
 594                         this,
 595                         _("Select DCP to open as OV"),
 596                         wxStandardPaths::Get().GetDocumentsDir(),
 597                         wxDEFAULT_DIALOG_STYLE | wxDD_DIR_MUST_EXIST
 598                         );
 599
 600                 int r;
 601                 while (true) {
 602                         r = c->ShowModal ();
 603                         if (r == wxID_OK && c->GetPath() == wxStandardPaths::Get().GetDocumentsDir()) {
 604                                 error_dialog (this, _("You did not select a folder.  Make sure that you select a folder before clicking Open."));
 605                         } else {
 606                                 break;
 607                         }
 608                 }
 609
 610                 if (r == wxID_OK) {
 611                         DCPOMATIC_ASSERT (_film);
 612                         auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 613                         DCPOMATIC_ASSERT (dcp);
 614                         dcp->add_ov (wx_to_std(c->GetPath()));
 615                         JobManager::instance()->add(make_shared<ExamineContentJob>(_film, dcp));
 616                         bool const ok = display_progress (_("DCP-o-matic Player"), _("Loading content"));
 617                         if (!ok || !report_errors_from_last_job(this)) {
 618                                 return;
 619                         }
 620                         for (auto i: dcp->text) {
 621                                 i->set_use (true);
 622                         }
 623                         if (dcp->video) {
 624                                 auto const r = Ratio::nearest_from_ratio(dcp->video->size().ratio());
 625                                 if (r) {
 626                                         _film->set_container(r);
 627                                 }
 628                         }
 629                 }
 630
 631                 c->Destroy ();
 632                 _info->triggered_update ();
 633         }
 634
 635         void file_add_kdm ()
 636         {
 637                 auto d = new wxFileDialog (this, _("Select KDM"));
 638
 639                 if (d->ShowModal() == wxID_OK) {
 640                         DCPOMATIC_ASSERT (_film);
 641                         auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 642                         DCPOMATIC_ASSERT (dcp);
 643                         try {
 644                                 if (dcp) {
 645                                         _viewer->set_coalesce_player_changes (true);
 646                                         dcp->add_kdm (dcp::EncryptedKDM(dcp::file_to_string(wx_to_std(d->GetPath()), MAX_KDM_SIZE)));
 647                                         examine_content();
 648                                         _viewer->set_coalesce_player_changes (false);
 649                                 }
 650                         } catch (exception& e) {
 651                                 error_dialog (this, wxString::Format (_("Could not load KDM.")), std_to_wx(e.what()));
 652                                 d->Destroy ();
 653                                 return;
 654                         }
 655                 }
 656
 657                 d->Destroy ();
 658                 _info->triggered_update ();
 659         }
 660
 661         void file_history (wxCommandEvent& event)
 662         {
 663                 auto history = Config::instance()->player_history ();
 664                 int n = event.GetId() - ID_file_history;
 665                 if (n >= 0 && n < static_cast<int> (history.size ())) {
 666                         try {
 667                                 load_dcp (history[n]);
 668                         } catch (exception& e) {
 669                                 error_dialog (0, std_to_wx(String::compose(wx_to_std(_("Could not load DCP %1.")), history[n])), std_to_wx(e.what()));
 670                         }
 671                 }
 672         }
 673
 674         void file_close ()
 675         {
 676                 reset_film ();
 677                 _info->triggered_update ();
 678                 set_menu_sensitivity ();
 679         }
 680
 681         void file_exit ()
 682         {
 683                 Close ();
 684         }
 685
 686         void edit_preferences ()
 687         {
 688                 if (!Config::instance()->have_write_permission()) {
 689                         return;
 690                 }
 691
 692                 if (!_config_dialog) {
 693                         _config_dialog = create_player_config_dialog ();
 694                 }
 695                 _config_dialog->Show (this);
 696         }
 697
 698         void view_cpl (wxCommandEvent& ev)
 699         {
 700                 auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 701                 DCPOMATIC_ASSERT (dcp);
 702                 auto cpls = dcp::find_and_resolve_cpls (dcp->directories(), true);
 703                 int id = ev.GetId() - ID_view_cpl;
 704                 DCPOMATIC_ASSERT (id >= 0);
 705                 DCPOMATIC_ASSERT (id < int(cpls.size()));
 706                 auto i = cpls.begin();
 707                 while (id > 0) {
 708                         ++i;
 709                         --id;
 710                 }
 711
 712                 _viewer->set_coalesce_player_changes (true);
 713                 dcp->set_cpl ((*i)->id());
 714                 examine_content ();
 715                 _viewer->set_coalesce_player_changes (false);
 716
 717                 _info->triggered_update ();
 718         }
 719
 720         void view_full_screen ()
 721         {
 722                 if (_mode == Config::PLAYER_MODE_FULL) {
 723                         _mode = Config::PLAYER_MODE_WINDOW;
 724                 } else {
 725                         _mode = Config::PLAYER_MODE_FULL;
 726                 }
 727                 setup_screen ();
 728                 setup_menu ();
 729         }
 730
 731         void view_dual_screen ()
 732         {
 733                 if (_mode == Config::PLAYER_MODE_DUAL) {
 734                         _mode = Config::PLAYER_MODE_WINDOW;
 735                 } else {
 736                         _mode = Config::PLAYER_MODE_DUAL;
 737                 }
 738                 setup_screen ();
 739                 setup_menu ();
 740         }
 741
 742         void setup_menu ()
 743         {
 744                 if (_view_full_screen) {
 745                         _view_full_screen->Check (_mode == Config::PLAYER_MODE_FULL);
 746                 }
 747                 if (_view_dual_screen) {
 748                         _view_dual_screen->Check (_mode == Config::PLAYER_MODE_DUAL);
 749                 }
 750         }
 751
 752         void setup_screen ()
 753         {
 754                 _controls->Show (_mode != Config::PLAYER_MODE_FULL);
 755                 _info->Show (_mode != Config::PLAYER_MODE_FULL);
 756                 _overall_panel->SetBackgroundColour (_mode == Config::PLAYER_MODE_FULL ? wxColour(0, 0, 0) : wxNullColour);
 757                 ShowFullScreen (_mode == Config::PLAYER_MODE_FULL);
 758                 _viewer->set_pad_black (_mode != Config::PLAYER_MODE_WINDOW);
 759
 760                 if (_mode == Config::PLAYER_MODE_DUAL) {
 761                         _dual_screen = new wxFrame (this, wxID_ANY, wxT(""));
 762                         _dual_screen->SetBackgroundColour (wxColour(0, 0, 0));
 763                         _dual_screen->ShowFullScreen (true);
 764                         _viewer->panel()->Reparent (_dual_screen);
 765                         _dual_screen->Show ();
 766                         if (wxDisplay::GetCount() > 1) {
 767                                 switch (Config::instance()->image_display()) {
 768                                 case 0:
 769                                         _dual_screen->Move (0, 0);
 770                                         Move (wxDisplay(0U).GetClientArea().GetWidth(), 0);
 771                                         break;
 772                                 case 1:
 773                                         _dual_screen->Move (wxDisplay(0U).GetClientArea().GetWidth(), 0);
 774                                         // (0, 0) doesn't seem to work for some strange reason
 775                                         Move (8, 8);
 776                                         break;
 777                                 }
 778                         }
 779                 } else {
 780                         if (_dual_screen) {
 781                                 _viewer->panel()->Reparent (_overall_panel);
 782                                 _dual_screen->Destroy ();
 783                                 _dual_screen = 0;
 784                         }
 785                 }
 786
 787                 setup_main_sizer (_mode);
 788         }
 789
 790         void view_closed_captions ()
 791         {
 792                 _viewer->show_closed_captions ();
 793         }
 794
 795         void tools_verify ()
 796         {
 797                 auto dcp = std::dynamic_pointer_cast<DCPContent>(_film->content().front());
 798                 DCPOMATIC_ASSERT (dcp);
 799
 800                 auto job = make_shared<VerifyDCPJob>(dcp->directories());
 801                 auto progress = new VerifyDCPProgressDialog(this, _("DCP-o-matic Player"));
 802                 bool const completed = progress->run (job);
 803                 progress->Destroy ();
 804                 if (!completed) {
 805                         return;
 806                 }
 807
 808                 auto d = new VerifyDCPDialog (this, job);
 809                 d->ShowModal ();
 810                 d->Destroy ();
 811         }
 812
 813         void tools_check_for_updates ()
 814         {
 815                 UpdateChecker::instance()->run ();
 816                 _update_news_requested = true;
 817         }
 818
 819         void tools_timing ()
 820         {
 821                 auto d = new TimerDisplay (this, _viewer->state_timer(), _viewer->gets());
 822                 d->ShowModal ();
 823                 d->Destroy ();
 824         }
 825
 826         void tools_system_information ()
 827         {
 828                 if (!_system_information_dialog) {
 829                         _system_information_dialog = new SystemInformationDialog (this, _viewer);
 830                 }
 831
 832                 _system_information_dialog->Show ();
 833         }
 834
 835         void help_about ()
 836         {
 837                 auto d = new AboutDialog (this);
 838                 d->ShowModal ();
 839                 d->Destroy ();
 840         }
 841
 842         void help_report_a_problem ()
 843         {
 844                 auto d = new ReportProblemDialog (this);
 845                 if (d->ShowModal () == wxID_OK) {
 846                         d->report ();
 847                 }
 848                 d->Destroy ();
 849         }
 850
 851         void update_checker_state_changed ()
 852         {
 853                 auto uc = UpdateChecker::instance ();
 854
 855                 bool const announce =
 856                         _update_news_requested ||
 857                         (uc->stable() && Config::instance()->check_for_updates()) ||
 858                         (uc->test() && Config::instance()->check_for_updates() && Config::instance()->check_for_test_updates());
 859
 860                 _update_news_requested = false;
 861
 862                 if (!announce) {
 863                         return;
 864                 }
 865
 866                 if (uc->state() == UpdateChecker::State::YES) {
 867                         auto dialog = new UpdateDialog (this, uc->stable (), uc->test ());
 868                         dialog->ShowModal ();
 869                         dialog->Destroy ();
 870                 } else if (uc->state() == UpdateChecker::State::FAILED) {
 871                         error_dialog (this, _("The DCP-o-matic download server could not be contacted."));
 872                 } else {
 873                         error_dialog (this, _("There are no new versions of DCP-o-matic available."));
 874                 }
 875
 876                 _update_news_requested = false;
 877         }
 878
 879         void config_changed (Config::Property prop)
 880         {
 881                 /* Instantly save any config changes when using the player GUI */
 882                 try {
 883                         Config::instance()->write_config();
 884                 } catch (FileError& e) {
 885                         if (prop != Config::HISTORY) {
 886                                 error_dialog (
 887                                         this,
 888                                         wxString::Format(
 889                                                 _("Could not write to config file at %s.  Your changes have not been saved."),
 890                                                 std_to_wx(e.file().string())
 891                                                 )
 892                                         );
 893                         }
 894                 } catch (exception& e) {
 895                         error_dialog (
 896                                 this,
 897                                 _("Could not write to config file.  Your changes have not been saved.")
 898                                 );
 899                 }
 900
 901                 update_from_config (prop);
 902         }
 903
 904         void update_from_config (Config::Property prop)
 905         {
 906                 for (int i = 0; i < _history_items; ++i) {
 907                         delete _file_menu->Remove (ID_file_history + i);
 908                 }
 909
 910                 if (_history_separator) {
 911                         _file_menu->Remove (_history_separator);
 912                 }
 913                 delete _history_separator;
 914                 _history_separator = nullptr;
 915
 916                 int pos = _history_position;
 917
 918                 /* Clear out non-existant history items before we re-build the menu */
 919                 Config::instance()->clean_player_history ();
 920                 auto history = Config::instance()->player_history ();
 921
 922                 if (!history.empty ()) {
 923                         _history_separator = _file_menu->InsertSeparator (pos++);
 924                 }
 925
 926                 for (size_t i = 0; i < history.size(); ++i) {
 927                         string s;
 928                         if (i < 9) {
 929                                 s = String::compose ("&%1 %2", i + 1, history[i].string());
 930                         } else {
 931                                 s = history[i].string();
 932                         }
 933                         _file_menu->Insert (pos++, ID_file_history + i, std_to_wx (s));
 934                 }
 935
 936                 _history_items = history.size ();
 937
 938                 if (prop == Config::PLAYER_DEBUG_LOG) {
 939                         auto p = Config::instance()->player_debug_log_file();
 940                         if (p) {
 941                                 dcpomatic_log = make_shared<FileLog>(*p);
 942                         } else {
 943                                 dcpomatic_log = make_shared<NullLog>();
 944                         }
 945                         dcpomatic_log->set_types (LogEntry::TYPE_GENERAL | LogEntry::TYPE_WARNING | LogEntry::TYPE_ERROR | LogEntry::TYPE_DEBUG_VIDEO_VIEW);
 946                 }
 947         }
 948
 949         void set_menu_sensitivity ()
 950         {
 951                 _tools_verify->Enable (static_cast<bool>(_film));
 952                 _file_add_ov->Enable (static_cast<bool>(_film));
 953                 _file_add_kdm->Enable (static_cast<bool>(_film));
 954                 _view_cpl->Enable (static_cast<bool>(_film));
 955         }
 956
 957         void start_stop_pressed ()
 958         {
 959                 if (_viewer->playing()) {
 960                         _viewer->stop();
 961                 } else {
 962                         _viewer->start();
 963                 }
 964         }
 965
 966         void go_back_frame ()
 967         {
 968                 _viewer->seek_by (-_viewer->one_video_frame(), true);
 969         }
 970
 971         void go_forward_frame ()
 972         {
 973                 _viewer->seek_by (_viewer->one_video_frame(), true);
 974         }
 975
 976         void go_seconds (int s)
 977         {
 978                 _viewer->seek_by (DCPTime::from_seconds(s), true);
 979         }
 980
 981         void go_to_start ()
 982         {
 983                 _viewer->seek (DCPTime(), true);
 984         }
 985
 986         void go_to_end ()
 987         {
 988                 _viewer->seek (_film->length() - _viewer->one_video_frame(), true);
 989         }
 990
 991         wxFrame* _dual_screen = nullptr;
 992         bool _update_news_requested = false;
 993         PlayerInformation* _info = nullptr;
 994         Config::PlayerMode _mode;
 995         wxPreferencesEditor* _config_dialog = nullptr;
 996         wxPanel* _overall_panel = nullptr;
 997         wxMenu* _file_menu = nullptr;
 998         wxMenuItem* _view_cpl = nullptr;
 999         wxMenu* _cpl_menu = nullptr;
1000         int _history_items = 0;
1001         int _history_position = 0;
1002         wxMenuItem* _history_separator = nullptr;
1003         shared_ptr<FilmViewer> _viewer;
1004         Controls* _controls;
1005         SystemInformationDialog* _system_information_dialog = nullptr;
1006         std::shared_ptr<Film> _film;
1007         boost::signals2::scoped_connection _config_changed_connection;
1008         boost::signals2::scoped_connection _examine_job_connection;
1009         wxMenuItem* _file_add_ov = nullptr;
1010         wxMenuItem* _file_add_kdm = nullptr;
1011         wxMenuItem* _tools_verify = nullptr;
1012         wxMenuItem* _view_full_screen = nullptr;
1013         wxMenuItem* _view_dual_screen = nullptr;
1014         wxSizer* _main_sizer = nullptr;
1015         PlayerStressTester _stress;
1016 };
1017
1018 static const wxCmdLineEntryDesc command_line_description[] = {
1019         { wxCMD_LINE_PARAM, 0, 0, "DCP to load or create", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1020         { wxCMD_LINE_OPTION, "c", "config", "Directory containing config.xml", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1021         { wxCMD_LINE_OPTION, "s", "stress", "File containing description of stress test", wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
1022         { wxCMD_LINE_NONE, "", "", "", wxCmdLineParamType (0), 0 }
1023 };
1024
1025 class PlayServer : public Server
1026 {
1027 public:
1028         explicit PlayServer (DOMFrame* frame)
1029                 : Server (PLAYER_PLAY_PORT)
1030                 , _frame (frame)
1031         {}
1032
1033         void handle (shared_ptr<Socket> socket) override
1034         {
1035                 try {
1036                         int const length = socket->read_uint32 ();
1037                         scoped_array<char> buffer (new char[length]);
1038                         socket->read (reinterpret_cast<uint8_t*> (buffer.get()), length);
1039                         string s (buffer.get());
1040                         signal_manager->when_idle (bind (&DOMFrame::load_dcp, _frame, s));
1041                         socket->write (reinterpret_cast<uint8_t const *> ("OK"), 3);
1042                 } catch (...) {
1043
1044                 }
1045         }
1046
1047 private:
1048         DOMFrame* _frame;
1049 };
1050
1051 /** @class App
1052  *  @brief The magic App class for wxWidgets.
1053  */
1054 class App : public wxApp
1055 {
1056 public:
1057         App ()
1058                 : wxApp ()
1059         {
1060 #ifdef DCPOMATIC_LINUX
1061                 XInitThreads ();
1062 #endif
1063         }
1064
1065 private:
1066
1067         bool OnInit () override
1068         {
1069                 wxSplashScreen* splash = nullptr;
1070                 try {
1071                         wxInitAllImageHandlers ();
1072
1073                         Config::FailedToLoad.connect (boost::bind (&App::config_failed_to_load, this));
1074                         Config::Warning.connect (boost::bind (&App::config_warning, this, _1));
1075
1076                         splash = maybe_show_splash ();
1077
1078                         SetAppName (_("DCP-o-matic Player"));
1079
1080                         if (!wxApp::OnInit()) {
1081                                 return false;
1082                         }
1083
1084 #ifdef DCPOMATIC_LINUX
1085                         unsetenv ("UBUNTU_MENUPROXY");
1086 #endif
1087
1088 #ifdef DCPOMATIC_OSX
1089                         make_foreground_application ();
1090 #endif
1091
1092                         dcpomatic_setup_path_encoding ();
1093
1094                         /* Enable i18n; this will create a Config object
1095                            to look for a force-configured language.  This Config
1096                            object will be wrong, however, because dcpomatic_setup
1097                            hasn't yet been called and there aren't any filters etc.
1098                            set up yet.
1099                         */
1100                         dcpomatic_setup_i18n ();
1101
1102                         /* Set things up, including filters etc.
1103                            which will now be internationalised correctly.
1104                         */
1105                         dcpomatic_setup ();
1106
1107                         /* Force the configuration to be re-loaded correctly next
1108                            time it is needed.
1109                         */
1110                         Config::drop ();
1111
1112                         signal_manager = new wxSignalManager (this);
1113
1114                         _frame = new DOMFrame ();
1115                         SetTopWindow (_frame);
1116                         _frame->Maximize ();
1117                         if (splash) {
1118                                 splash->Destroy ();
1119                                 splash = nullptr;
1120                         }
1121                         _frame->Show ();
1122
1123                         try {
1124                                 auto server = new PlayServer (_frame);
1125                                 new thread (boost::bind (&PlayServer::run, server));
1126                         } catch (std::exception& e) {
1127                                 /* This is not the end of the world; probably a failure to bind the server socket
1128                                  * because there's already another player running.
1129                                  */
1130                                 LOG_DEBUG_PLAYER ("Failed to start play server (%1)", e.what());
1131                         }
1132
1133                         if (!_dcp_to_load.empty() && boost::filesystem::is_directory (_dcp_to_load)) {
1134                                 try {
1135                                         _frame->load_dcp (_dcp_to_load);
1136                                 } catch (exception& e) {
1137                                         error_dialog (0, std_to_wx (String::compose (wx_to_std (_("Could not load DCP %1.")), _dcp_to_load)), std_to_wx(e.what()));
1138                                 }
1139                         }
1140
1141                         if (_stress) {
1142                                 try {
1143                                         _frame->load_stress_script (*_stress);
1144                                 } catch (exception& e) {
1145                                         error_dialog (0, wxString::Format("Could not load stress test file %s", std_to_wx(*_stress)));
1146                                 }
1147                         }
1148
1149                         Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
1150
1151                         if (Config::instance()->check_for_updates ()) {
1152                                 UpdateChecker::instance()->run ();
1153                         }
1154                 }
1155                 catch (exception& e)
1156                 {
1157                         if (splash) {
1158                                 splash->Destroy ();
1159                         }
1160                         error_dialog (0, _("DCP-o-matic Player could not start."), std_to_wx(e.what()));
1161                 }
1162
1163                 return true;
1164         }
1165
1166         void OnInitCmdLine (wxCmdLineParser& parser) override
1167         {
1168                 parser.SetDesc (command_line_description);
1169                 parser.SetSwitchChars (wxT ("-"));
1170         }
1171
1172         bool OnCmdLineParsed (wxCmdLineParser& parser) override
1173         {
1174                 if (parser.GetParamCount() > 0) {
1175                         _dcp_to_load = wx_to_std (parser.GetParam (0));
1176                 }
1177
1178                 wxString config;
1179                 if (parser.Found("c", &config)) {
1180                         Config::override_path = wx_to_std (config);
1181                 }
1182                 wxString stress;
1183                 if (parser.Found("s", &stress)) {
1184                         _stress = wx_to_std (stress);
1185                 }
1186
1187                 return true;
1188         }
1189
1190         void report_exception ()
1191         {
1192                 try {
1193                         throw;
1194                 } catch (FileError& e) {
1195                         error_dialog (
1196                                 0,
1197                                 wxString::Format (
1198                                         _("An exception occurred: %s (%s)\n\n") + REPORT_PROBLEM,
1199                                         std_to_wx (e.what()),
1200                                         std_to_wx (e.file().string().c_str ())
1201                                         )
1202                                 );
1203                 } catch (exception& e) {
1204                         error_dialog (
1205                                 0,
1206                                 wxString::Format (
1207                                         _("An exception occurred: %s.\n\n") + REPORT_PROBLEM,
1208                                         std_to_wx (e.what ())
1209                                         )
1210                                 );
1211                 } catch (...) {
1212                         error_dialog (0, _("An unknown exception occurred.") + "  " + REPORT_PROBLEM);
1213                 }
1214         }
1215
1216         /* An unhandled exception has occurred inside the main event loop */
1217         bool OnExceptionInMainLoop () override
1218         {
1219                 report_exception ();
1220                 /* This will terminate the program */
1221                 return false;
1222         }
1223
1224         void OnUnhandledException () override
1225         {
1226                 report_exception ();
1227         }
1228
1229         void idle ()
1230         {
1231                 signal_manager->ui_idle ();
1232         }
1233
1234         void config_failed_to_load ()
1235         {
1236                 message_dialog (_frame, _("The existing configuration failed to load.  Default values will be used instead.  These may take a short time to create."));
1237         }
1238
1239         void config_warning (string m)
1240         {
1241                 message_dialog (_frame, std_to_wx (m));
1242         }
1243
1244         DOMFrame* _frame = nullptr;
1245         string _dcp_to_load;
1246         boost::optional<string> _stress;
1247 };
1248
1249 IMPLEMENT_APP (App)