src/tools/dcpomatic_playlist.cc

   1 /*
   2     Copyright (C) 2018-2021 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
  22 #include "wx/wx_util.h"
  23 #include "wx/wx_signal_manager.h"
  24 #include "wx/content_view.h"
  25 #include "wx/dcpomatic_button.h"
  26 #include "wx/about_dialog.h"
  27 #include "wx/playlist_editor_config_dialog.h"
  28 #include "lib/config.h"
  29 #include "lib/cross.h"
  30 #include "lib/dcp_content.h"
  31 #include "lib/film.h"
  32 #include "lib/spl.h"
  33 #include "lib/spl_entry.h"
  34 #include "lib/util.h"
  35 #include <wx/wx.h>
  36 #include <wx/listctrl.h>
  37 #include <wx/imaglist.h>
  38 #include <wx/spinctrl.h>
  39 #include <wx/preferences.h>
  40
  41
  42 using std::cout;
  43 using std::exception;
  44 using std::make_pair;
  45 using std::make_shared;
  46 using std::map;
  47 using std::shared_ptr;
  48 using std::string;
  49 using std::vector;
  50 using std::weak_ptr;
  51 using boost::bind;
  52 using boost::optional;
  53 using std::dynamic_pointer_cast;
  54 #if BOOST_VERSION >= 106100
  55 using namespace boost::placeholders;
  56 #endif
  57
  58
  59 class ContentDialog : public wxDialog, public ContentStore
  60 {
  61 public:
  62         ContentDialog (wxWindow* parent)
  63                 : wxDialog (parent, wxID_ANY, _("Add content"), wxDefaultPosition, wxSize(800, 640))
  64                 , _content_view (new ContentView(this))
  65         {
  66                 _content_view->update ();
  67
  68                 auto overall_sizer = new wxBoxSizer (wxVERTICAL);
  69                 SetSizer (overall_sizer);
  70
  71                 overall_sizer->Add (_content_view, 1, wxEXPAND | wxALL, DCPOMATIC_DIALOG_BORDER);
  72
  73                 auto buttons = CreateSeparatedButtonSizer (wxOK | wxCANCEL);
  74                 if (buttons) {
  75                         overall_sizer->Add (buttons, wxSizerFlags().Expand().DoubleBorder());
  76                 }
  77
  78                 overall_sizer->Layout ();
  79
  80                 _config_changed_connection = Config::instance()->Changed.connect(boost::bind(&ContentView::update, _content_view));
  81         }
  82
  83         shared_ptr<Content> selected () const
  84         {
  85                 return _content_view->selected ();
  86         }
  87
  88         shared_ptr<Content> get (string digest) const override
  89         {
  90                 return _content_view->get (digest);
  91         }
  92
  93 private:
  94         ContentView* _content_view;
  95         boost::signals2::scoped_connection _config_changed_connection;
  96 };
  97
  98
  99
 100 class PlaylistList
 101 {
 102 public:
 103         PlaylistList (wxPanel* parent, ContentStore* content_store)
 104                 : _sizer (new wxBoxSizer(wxVERTICAL))
 105                 , _content_store (content_store)
 106         {
 107                 auto label = new wxStaticText (parent, wxID_ANY, wxEmptyString);
 108                 label->SetLabelMarkup (_("<b>Playlists</b>"));
 109                 _sizer->Add (label, 0, wxTOP | wxLEFT, DCPOMATIC_SIZER_GAP * 2);
 110
 111                 _list = new wxListCtrl (
 112                         parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLC_REPORT | wxLC_SINGLE_SEL
 113                         );
 114
 115                 _list->AppendColumn (_("Name"), wxLIST_FORMAT_LEFT, 840);
 116                 _list->AppendColumn (_("Length"), wxLIST_FORMAT_LEFT, 100);
 117
 118                 auto button_sizer = new wxBoxSizer (wxVERTICAL);
 119                 _new = new Button (parent, _("New"));
 120                 button_sizer->Add (_new, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 121                 _delete = new Button (parent, _("Delete"));
 122                 button_sizer->Add (_delete, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 123
 124                 auto list = new wxBoxSizer (wxHORIZONTAL);
 125                 list->Add (_list, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 126                 list->Add (button_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 127
 128                 _sizer->Add (list);
 129
 130                 load_playlists ();
 131
 132                 _list->Bind (wxEVT_COMMAND_LIST_ITEM_SELECTED, bind(&PlaylistList::selection_changed, this));
 133                 _list->Bind (wxEVT_COMMAND_LIST_ITEM_DESELECTED, bind(&PlaylistList::selection_changed, this));
 134                 _new->Bind (wxEVT_BUTTON, bind(&PlaylistList::new_playlist, this));
 135                 _delete->Bind (wxEVT_BUTTON, bind(&PlaylistList::delete_playlist, this));
 136         }
 137
 138         wxSizer* sizer ()
 139         {
 140                 return _sizer;
 141         }
 142
 143         shared_ptr<SignalSPL> first_playlist () const
 144         {
 145                 if (_playlists.empty()) {
 146                         return {};
 147                 }
 148
 149                 return _playlists.front ();
 150         }
 151
 152         boost::signals2::signal<void (shared_ptr<SignalSPL>)> Edit;
 153
 154 private:
 155         void add_playlist_to_view (shared_ptr<const SignalSPL> playlist)
 156         {
 157                 wxListItem item;
 158                 item.SetId (_list->GetItemCount());
 159                 long const N = _list->InsertItem (item);
 160                 _list->SetItem (N, 0, std_to_wx(playlist->name()));
 161         }
 162
 163         void add_playlist_to_model (shared_ptr<SignalSPL> playlist)
 164         {
 165                 _playlists.push_back (playlist);
 166                 playlist->NameChanged.connect (bind(&PlaylistList::name_changed, this, weak_ptr<SignalSPL>(playlist)));
 167         }
 168
 169         void name_changed (weak_ptr<SignalSPL> wp)
 170         {
 171                 auto playlist = wp.lock ();
 172                 if (!playlist) {
 173                         return;
 174                 }
 175
 176                 int N = 0;
 177                 for (auto i: _playlists) {
 178                         if (i == playlist) {
 179                                 _list->SetItem (N, 0, std_to_wx(i->name()));
 180                         }
 181                         ++N;
 182                 }
 183         }
 184
 185         void load_playlists ()
 186         {
 187                 auto path = Config::instance()->player_playlist_directory();
 188                 if (!path) {
 189                         return;
 190                 }
 191
 192                 _list->DeleteAllItems ();
 193                 _playlists.clear ();
 194                 for (auto i: boost::filesystem::directory_iterator(*path)) {
 195                         auto spl = make_shared<SignalSPL>();
 196                         try {
 197                                 spl->read (i, _content_store);
 198                                 add_playlist_to_model (spl);
 199                         } catch (...) {}
 200                 }
 201
 202                 for (auto i: _playlists) {
 203                         add_playlist_to_view (i);
 204                 }
 205         }
 206
 207         void new_playlist ()
 208         {
 209                 shared_ptr<SignalSPL> spl (new SignalSPL(wx_to_std(_("New Playlist"))));
 210                 add_playlist_to_model (spl);
 211                 add_playlist_to_view (spl);
 212                 _list->SetItemState (_list->GetItemCount() - 1, wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 213         }
 214
 215         void delete_playlist ()
 216         {
 217                 long int selected = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 218                 if (selected < 0 || selected >= int(_playlists.size())) {
 219                         return;
 220                 }
 221
 222                 auto dir = Config::instance()->player_playlist_directory();
 223                 if (!dir) {
 224                         return;
 225                 }
 226
 227                 boost::filesystem::remove (*dir / (_playlists[selected]->id() + ".xml"));
 228                 _list->DeleteItem (selected);
 229                 _playlists.erase (_playlists.begin() + selected);
 230
 231                 Edit (shared_ptr<SignalSPL>());
 232         }
 233
 234         void selection_changed ()
 235         {
 236                 long int selected = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 237                 if (selected < 0 || selected >= int(_playlists.size())) {
 238                         Edit (shared_ptr<SignalSPL>());
 239                 } else {
 240                         Edit (_playlists[selected]);
 241                 }
 242         }
 243
 244         wxBoxSizer* _sizer;
 245         wxListCtrl* _list;
 246         wxButton* _new;
 247         wxButton* _delete;
 248         vector<shared_ptr<SignalSPL>> _playlists;
 249         ContentStore* _content_store;
 250 };
 251
 252
 253 class PlaylistContent
 254 {
 255 public:
 256         PlaylistContent (wxPanel* parent, ContentDialog* content_dialog)
 257                 : _content_dialog (content_dialog)
 258                 , _sizer (new wxBoxSizer(wxVERTICAL))
 259         {
 260                 auto title = new wxBoxSizer (wxHORIZONTAL);
 261                 auto label = new wxStaticText (parent, wxID_ANY, wxEmptyString);
 262                 label->SetLabelMarkup (_("<b>Playlist:</b>"));
 263                 title->Add (label, 0, wxALIGN_CENTER_VERTICAL | wxRIGHT, DCPOMATIC_SIZER_GAP);
 264                 _name = new wxTextCtrl (parent, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(400, -1));
 265                 title->Add (_name, 0, wxRIGHT, DCPOMATIC_SIZER_GAP);
 266                 _sizer->Add (title, 0, wxTOP | wxLEFT, DCPOMATIC_SIZER_GAP * 2);
 267
 268                 auto list = new wxBoxSizer (wxHORIZONTAL);
 269
 270                 _list = new wxListCtrl (
 271                         parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLC_REPORT | wxLC_SINGLE_SEL
 272                         );
 273
 274                 _list->AppendColumn (_("Name"), wxLIST_FORMAT_LEFT, 400);
 275                 _list->AppendColumn (_("CPL"), wxLIST_FORMAT_LEFT, 350);
 276                 _list->AppendColumn (_("Type"), wxLIST_FORMAT_LEFT, 100);
 277                 _list->AppendColumn (_("Encrypted"), wxLIST_FORMAT_CENTRE, 90);
 278
 279                 auto images = new wxImageList (16, 16);
 280                 wxIcon tick_icon;
 281                 wxIcon no_tick_icon;
 282                 tick_icon.LoadFile (bitmap_path("tick"), wxBITMAP_TYPE_PNG);
 283                 no_tick_icon.LoadFile (bitmap_path("no_tick"), wxBITMAP_TYPE_PNG);
 284                 images->Add (tick_icon);
 285                 images->Add (no_tick_icon);
 286
 287                 _list->SetImageList (images, wxIMAGE_LIST_SMALL);
 288
 289                 list->Add (_list, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 290
 291                 auto button_sizer = new wxBoxSizer (wxVERTICAL);
 292                 _up = new Button (parent, _("Up"));
 293                 _down = new Button (parent, _("Down"));
 294                 _add = new Button (parent, _("Add"));
 295                 _remove = new Button (parent, _("Remove"));
 296                 button_sizer->Add (_up, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 297                 button_sizer->Add (_down, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 298                 button_sizer->Add (_add, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 299                 button_sizer->Add (_remove, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 300
 301                 list->Add (button_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 302
 303                 _sizer->Add (list);
 304
 305                 _list->Bind (wxEVT_COMMAND_LIST_ITEM_SELECTED, bind(&PlaylistContent::setup_sensitivity, this));
 306                 _list->Bind (wxEVT_COMMAND_LIST_ITEM_DESELECTED, bind(&PlaylistContent::setup_sensitivity, this));
 307                 _name->Bind (wxEVT_TEXT, bind(&PlaylistContent::name_changed, this));
 308                 _up->Bind (wxEVT_BUTTON, bind(&PlaylistContent::up_clicked, this));
 309                 _down->Bind (wxEVT_BUTTON, bind(&PlaylistContent::down_clicked, this));
 310                 _add->Bind (wxEVT_BUTTON, bind(&PlaylistContent::add_clicked, this));
 311                 _remove->Bind (wxEVT_BUTTON, bind(&PlaylistContent::remove_clicked, this));
 312         }
 313
 314         wxSizer* sizer ()
 315         {
 316                 return _sizer;
 317         }
 318
 319         void set (shared_ptr<SignalSPL> playlist)
 320         {
 321                 _playlist = playlist;
 322                 _list->DeleteAllItems ();
 323                 if (_playlist) {
 324                         for (auto i: _playlist->get()) {
 325                                 add (i);
 326                         }
 327                         _name->SetValue (std_to_wx(_playlist->name()));
 328                 } else {
 329                         _name->SetValue (wxT(""));
 330                 }
 331                 setup_sensitivity ();
 332         }
 333
 334         shared_ptr<SignalSPL> playlist () const
 335         {
 336                 return _playlist;
 337         }
 338
 339
 340 private:
 341         void name_changed ()
 342         {
 343                 if (_playlist) {
 344                         _playlist->set_name (wx_to_std(_name->GetValue()));
 345                 }
 346         }
 347
 348         void add (SPLEntry e)
 349         {
 350                 wxListItem item;
 351                 item.SetId (_list->GetItemCount());
 352                 long const N = _list->InsertItem (item);
 353                 set_item (N, e);
 354         }
 355
 356         void set_item (long N, SPLEntry e)
 357         {
 358                 _list->SetItem (N, 0, std_to_wx(e.name));
 359                 _list->SetItem (N, 1, std_to_wx(e.id));
 360                 _list->SetItem (N, 2, std_to_wx(dcp::content_kind_to_string(e.kind)));
 361                 _list->SetItem (N, 3, e.encrypted ? S_("Question|Y") : S_("Question|N"));
 362         }
 363
 364         void setup_sensitivity ()
 365         {
 366                 bool const have_list = static_cast<bool>(_playlist);
 367                 int const num_selected = _list->GetSelectedItemCount ();
 368                 long int selected = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 369                 _name->Enable (have_list);
 370                 _list->Enable (have_list);
 371                 _up->Enable (have_list && selected > 0);
 372                 _down->Enable (have_list && selected != -1 && selected < (_list->GetItemCount() - 1));
 373                 _add->Enable (have_list);
 374                 _remove->Enable (have_list && num_selected > 0);
 375         }
 376
 377         void add_clicked ()
 378         {
 379                 int const r = _content_dialog->ShowModal ();
 380                 if (r == wxID_OK) {
 381                         auto content = _content_dialog->selected ();
 382                         if (content) {
 383                                 SPLEntry e (content);
 384                                 add (e);
 385                                 DCPOMATIC_ASSERT (_playlist);
 386                                 _playlist->add (e);
 387                         }
 388                 }
 389         }
 390
 391         void up_clicked ()
 392         {
 393                 long int s = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 394                 if (s < 1) {
 395                         return;
 396                 }
 397
 398                 DCPOMATIC_ASSERT (_playlist);
 399
 400                 auto tmp = (*_playlist)[s];
 401                 (*_playlist)[s] = (*_playlist)[s-1];
 402                 (*_playlist)[s-1] = tmp;
 403
 404                 set_item (s - 1, (*_playlist)[s-1]);
 405                 set_item (s, (*_playlist)[s]);
 406         }
 407
 408         void down_clicked ()
 409         {
 410                 long int s = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 411                 if (s > (_list->GetItemCount() - 1)) {
 412                         return;
 413                 }
 414
 415                 DCPOMATIC_ASSERT (_playlist);
 416
 417                 auto tmp = (*_playlist)[s];
 418                 (*_playlist)[s] = (*_playlist)[s+1];
 419                 (*_playlist)[s+1] = tmp;
 420
 421                 set_item (s + 1, (*_playlist)[s+1]);
 422                 set_item (s, (*_playlist)[s]);
 423         }
 424
 425         void remove_clicked ()
 426         {
 427                 long int s = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 428                 if (s == -1) {
 429                         return;
 430                 }
 431
 432                 DCPOMATIC_ASSERT (_playlist);
 433                 _playlist->remove (s);
 434                 _list->DeleteItem (s);
 435         }
 436
 437         ContentDialog* _content_dialog;
 438         wxBoxSizer* _sizer;
 439         wxTextCtrl* _name;
 440         wxListCtrl* _list;
 441         wxButton* _up;
 442         wxButton* _down;
 443         wxButton* _add;
 444         wxButton* _remove;
 445         shared_ptr<SignalSPL> _playlist;
 446 };
 447
 448
 449 class DOMFrame : public wxFrame
 450 {
 451 public:
 452         explicit DOMFrame (wxString const & title)
 453                 : wxFrame (nullptr, wxID_ANY, title)
 454                 , _content_dialog (new ContentDialog(this))
 455                 , _config_dialog (nullptr)
 456         {
 457                 auto bar = new wxMenuBar;
 458                 setup_menu (bar);
 459                 SetMenuBar (bar);
 460
 461                 /* Use a panel as the only child of the Frame so that we avoid
 462                    the dark-grey background on Windows.
 463                 */
 464                 auto overall_panel = new wxPanel (this, wxID_ANY);
 465                 auto sizer = new wxBoxSizer (wxVERTICAL);
 466
 467                 _playlist_list = new PlaylistList (overall_panel, _content_dialog);
 468                 _playlist_content = new PlaylistContent (overall_panel, _content_dialog);
 469
 470                 sizer->Add (_playlist_list->sizer());
 471                 sizer->Add (_playlist_content->sizer());
 472
 473                 overall_panel->SetSizer (sizer);
 474
 475                 _playlist_list->Edit.connect (bind(&DOMFrame::change_playlist, this, _1));
 476
 477                 _playlist_content->set (_playlist_list->first_playlist());
 478
 479                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_exit, this), wxID_EXIT);
 480                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::help_about, this), wxID_ABOUT);
 481                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::edit_preferences, this), wxID_PREFERENCES);
 482
 483                 _config_changed_connection = Config::instance()->Changed.connect(boost::bind(&DOMFrame::config_changed, this));
 484         }
 485
 486 private:
 487
 488         void file_exit ()
 489         {
 490                 /* false here allows the close handler to veto the close request */
 491                 Close (false);
 492         }
 493
 494         void help_about ()
 495         {
 496                 auto d = new AboutDialog (this);
 497                 d->ShowModal ();
 498                 d->Destroy ();
 499         }
 500
 501         void edit_preferences ()
 502         {
 503                 if (!_config_dialog) {
 504                         _config_dialog = create_playlist_editor_config_dialog ();
 505                 }
 506                 _config_dialog->Show (this);
 507         }
 508
 509         void change_playlist (shared_ptr<SignalSPL> playlist)
 510         {
 511                 auto old = _playlist_content->playlist ();
 512                 if (old) {
 513                         save_playlist (old);
 514                 }
 515                 _playlist_content->set (playlist);
 516         }
 517
 518         void save_playlist (shared_ptr<SignalSPL> playlist)
 519         {
 520                 auto dir = Config::instance()->player_playlist_directory();
 521                 if (!dir) {
 522                         error_dialog (this, _("No playlist folder is specified in preferences.  Please set one and then try again."));
 523                         return;
 524                 }
 525                 playlist->write (*dir / (playlist->id() + ".xml"));
 526         }
 527
 528         void setup_menu (wxMenuBar* m)
 529         {
 530                 auto file = new wxMenu;
 531 #ifdef __WXOSX__
 532                 file->Append (wxID_EXIT, _("&Exit"));
 533 #else
 534                 file->Append (wxID_EXIT, _("&Quit"));
 535 #endif
 536
 537 #ifndef __WXOSX__
 538                 auto edit = new wxMenu;
 539                 edit->Append (wxID_PREFERENCES, _("&Preferences...\tCtrl-P"));
 540 #endif
 541
 542                 auto help = new wxMenu;
 543 #ifdef __WXOSX__
 544                 help->Append (wxID_ABOUT, _("About DCP-o-matic"));
 545 #else
 546                 help->Append (wxID_ABOUT, _("About"));
 547 #endif
 548
 549                 m->Append (file, _("&File"));
 550 #ifndef __WXOSX__
 551                 m->Append (edit, _("&Edit"));
 552 #endif
 553                 m->Append (help, _("&Help"));
 554         }
 555
 556
 557         void config_changed ()
 558         {
 559                 try {
 560                         Config::instance()->write_config();
 561                 } catch (exception& e) {
 562                         error_dialog (
 563                                 this,
 564                                 wxString::Format (
 565                                         _("Could not write to config file at %s.  Your changes have not been saved."),
 566                                         std_to_wx (Config::instance()->cinemas_file().string()).data()
 567                                         )
 568                                 );
 569                 }
 570         }
 571
 572         ContentDialog* _content_dialog;
 573         PlaylistList* _playlist_list;
 574         PlaylistContent* _playlist_content;
 575         wxPreferencesEditor* _config_dialog;
 576         boost::signals2::scoped_connection _config_changed_connection;
 577 };
 578
 579
 580 /** @class App
 581  *  @brief The magic App class for wxWidgets.
 582  */
 583 class App : public wxApp
 584 {
 585 public:
 586         App ()
 587                 : wxApp ()
 588                 , _frame (nullptr)
 589         {}
 590
 591 private:
 592
 593         bool OnInit () override
 594         try
 595         {
 596                 wxInitAllImageHandlers ();
 597                 SetAppName (_("DCP-o-matic Playlist Editor"));
 598
 599                 if (!wxApp::OnInit()) {
 600                         return false;
 601                 }
 602
 603 #ifdef DCPOMATIC_LINUX
 604                 unsetenv ("UBUNTU_MENUPROXY");
 605 #endif
 606
 607 #ifdef DCPOMATIC_OSX
 608                 make_foreground_application ();
 609 #endif
 610
 611                 dcpomatic_setup_path_encoding ();
 612
 613                 /* Enable i18n; this will create a Config object
 614                    to look for a force-configured language.  This Config
 615                    object will be wrong, however, because dcpomatic_setup
 616                    hasn't yet been called and there aren't any filters etc.
 617                    set up yet.
 618                 */
 619                 dcpomatic_setup_i18n ();
 620
 621                 /* Set things up, including filters etc.
 622                    which will now be internationalised correctly.
 623                 */
 624                 dcpomatic_setup ();
 625
 626                 /* Force the configuration to be re-loaded correctly next
 627                    time it is needed.
 628                 */
 629                 Config::drop ();
 630
 631                 _frame = new DOMFrame (_("DCP-o-matic Playlist Editor"));
 632                 SetTopWindow (_frame);
 633                 _frame->Maximize ();
 634                 _frame->Show ();
 635
 636                 signal_manager = new wxSignalManager (this);
 637                 Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
 638
 639                 return true;
 640         }
 641         catch (exception& e)
 642         {
 643                 error_dialog (0, _("DCP-o-matic could not start"), std_to_wx(e.what()));
 644                 return true;
 645         }
 646
 647         /* An unhandled exception has occurred inside the main event loop */
 648         bool OnExceptionInMainLoop () override
 649         {
 650                 try {
 651                         throw;
 652                 } catch (FileError& e) {
 653                         error_dialog (
 654                                 0,
 655                                 wxString::Format (
 656                                         _("An exception occurred: %s (%s)\n\n") + REPORT_PROBLEM,
 657                                         std_to_wx (e.what()),
 658                                         std_to_wx (e.file().string().c_str ())
 659                                         )
 660                                 );
 661                 } catch (exception& e) {
 662                         error_dialog (
 663                                 0,
 664                                 wxString::Format (
 665                                         _("An exception occurred: %s.\n\n") + " " + REPORT_PROBLEM,
 666                                         std_to_wx (e.what ())
 667                                         )
 668                                 );
 669                 } catch (...) {
 670                         error_dialog (0, _("An unknown exception occurred.") + "  " + REPORT_PROBLEM);
 671                 }
 672
 673                 /* This will terminate the program */
 674                 return false;
 675         }
 676
 677         void OnUnhandledException () override
 678         {
 679                 error_dialog (0, _("An unknown exception occurred.") + "  " + REPORT_PROBLEM);
 680         }
 681
 682         void idle ()
 683         {
 684                 signal_manager->ui_idle ();
 685         }
 686
 687         DOMFrame* _frame;
 688 };
 689
 690 IMPLEMENT_APP (App)