src/tools/dcpomatic_playlist.cc

   1 /*
   2     Copyright (C) 2018-2020 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/wx_util.h"
  22 #include "../wx/wx_signal_manager.h"
  23 #include "../wx/content_view.h"
  24 #include "../wx/dcpomatic_button.h"
  25 #include "../wx/about_dialog.h"
  26 #include "../wx/playlist_editor_config_dialog.h"
  27 #include "../lib/util.h"
  28 #include "../lib/config.h"
  29 #include "../lib/cross.h"
  30 #include "../lib/film.h"
  31 #include "../lib/dcp_content.h"
  32 #include "../lib/spl_entry.h"
  33 #include "../lib/spl.h"
  34 #include <wx/wx.h>
  35 #include <wx/listctrl.h>
  36 #include <wx/imaglist.h>
  37 #include <wx/spinctrl.h>
  38 #include <wx/preferences.h>
  39 #include <boost/foreach.hpp>
  40
  41 using std::exception;
  42 using std::cout;
  43 using std::string;
  44 using std::map;
  45 using std::make_pair;
  46 using std::vector;
  47 using boost::optional;
  48 using boost::shared_ptr;
  49 using boost::weak_ptr;
  50 using boost::bind;
  51 using boost::dynamic_pointer_cast;
  52 #if BOOST_VERSION >= 106100
  53 using namespace boost::placeholders;
  54 #endif
  55
  56 class ContentDialog : public wxDialog, public ContentStore
  57 {
  58 public:
  59         ContentDialog (wxWindow* parent)
  60                 : wxDialog (parent, wxID_ANY, _("Add content"), wxDefaultPosition, wxSize(800, 640))
  61                 , _content_view (new ContentView(this))
  62         {
  63                 _content_view->update ();
  64
  65                 wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
  66                 SetSizer (overall_sizer);
  67
  68                 overall_sizer->Add (_content_view, 1, wxEXPAND | wxALL, DCPOMATIC_DIALOG_BORDER);
  69
  70                 wxSizer* buttons = CreateSeparatedButtonSizer (wxOK | wxCANCEL);
  71                 if (buttons) {
  72                         overall_sizer->Add (buttons, wxSizerFlags().Expand().DoubleBorder());
  73                 }
  74
  75                 overall_sizer->Layout ();
  76
  77                 _config_changed_connection = Config::instance()->Changed.connect(boost::bind(&ContentView::update, _content_view));
  78         }
  79
  80         shared_ptr<Content> selected () const
  81         {
  82                 return _content_view->selected ();
  83         }
  84
  85         shared_ptr<Content> get (string digest) const
  86         {
  87                 return _content_view->get (digest);
  88         }
  89
  90 private:
  91         ContentView* _content_view;
  92         boost::signals2::scoped_connection _config_changed_connection;
  93 };
  94
  95
  96
  97 class PlaylistList
  98 {
  99 public:
 100         PlaylistList (wxPanel* parent, ContentStore* content_store)
 101                 : _sizer (new wxBoxSizer(wxVERTICAL))
 102                 , _content_store (content_store)
 103         {
 104                 wxStaticText* label = new wxStaticText (parent, wxID_ANY, wxEmptyString);
 105                 label->SetLabelMarkup (_("<b>Playlists</b>"));
 106                 _sizer->Add (label, 0, wxTOP | wxLEFT, DCPOMATIC_SIZER_GAP * 2);
 107
 108                 _list = new wxListCtrl (
 109                         parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLC_REPORT | wxLC_SINGLE_SEL
 110                         );
 111
 112                 _list->AppendColumn (_("Name"), wxLIST_FORMAT_LEFT, 840);
 113                 _list->AppendColumn (_("Length"), wxLIST_FORMAT_LEFT, 100);
 114
 115                 wxBoxSizer* button_sizer = new wxBoxSizer (wxVERTICAL);
 116                 _new = new Button (parent, _("New"));
 117                 button_sizer->Add (_new, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 118                 _delete = new Button (parent, _("Delete"));
 119                 button_sizer->Add (_delete, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 120
 121                 wxSizer* list = new wxBoxSizer (wxHORIZONTAL);
 122                 list->Add (_list, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 123                 list->Add (button_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 124
 125                 _sizer->Add (list);
 126
 127                 load_playlists ();
 128
 129                 _list->Bind (wxEVT_COMMAND_LIST_ITEM_SELECTED, bind(&PlaylistList::selection_changed, this));
 130                 _list->Bind (wxEVT_COMMAND_LIST_ITEM_DESELECTED, bind(&PlaylistList::selection_changed, this));
 131                 _new->Bind (wxEVT_BUTTON, bind(&PlaylistList::new_playlist, this));
 132                 _delete->Bind (wxEVT_BUTTON, bind(&PlaylistList::delete_playlist, this));
 133         }
 134
 135         wxSizer* sizer ()
 136         {
 137                 return _sizer;
 138         }
 139
 140         shared_ptr<SignalSPL> first_playlist () const
 141         {
 142                 if (_playlists.empty()) {
 143                         return shared_ptr<SignalSPL>();
 144                 }
 145
 146                 return _playlists.front ();
 147         }
 148
 149         boost::signals2::signal<void (shared_ptr<SignalSPL>)> Edit;
 150
 151 private:
 152         void add_playlist_to_view (shared_ptr<const SignalSPL> playlist)
 153         {
 154                 wxListItem item;
 155                 item.SetId (_list->GetItemCount());
 156                 long const N = _list->InsertItem (item);
 157                 _list->SetItem (N, 0, std_to_wx(playlist->name()));
 158         }
 159
 160         void add_playlist_to_model (shared_ptr<SignalSPL> playlist)
 161         {
 162                 _playlists.push_back (playlist);
 163                 playlist->NameChanged.connect (bind(&PlaylistList::name_changed, this, weak_ptr<SignalSPL>(playlist)));
 164         }
 165
 166         void name_changed (weak_ptr<SignalSPL> wp)
 167         {
 168                 shared_ptr<SignalSPL> playlist = wp.lock ();
 169                 if (!playlist) {
 170                         return;
 171                 }
 172
 173                 int N = 0;
 174                 BOOST_FOREACH (shared_ptr<SignalSPL> i, _playlists) {
 175                         if (i == playlist) {
 176                                 _list->SetItem (N, 0, std_to_wx(i->name()));
 177                         }
 178                         ++N;
 179                 }
 180         }
 181
 182         void load_playlists ()
 183         {
 184                 optional<boost::filesystem::path> path = Config::instance()->player_playlist_directory();
 185                 if (!path) {
 186                         return;
 187                 }
 188
 189                 _list->DeleteAllItems ();
 190                 _playlists.clear ();
 191                 for (boost::filesystem::directory_iterator i(*path); i != boost::filesystem::directory_iterator(); ++i) {
 192                         shared_ptr<SignalSPL> spl(new SignalSPL);
 193                         try {
 194                                 spl->read (*i, _content_store);
 195                                 add_playlist_to_model (spl);
 196                         } catch (...) {}
 197                 }
 198
 199                 BOOST_FOREACH (shared_ptr<SignalSPL> i, _playlists) {
 200                         add_playlist_to_view (i);
 201                 }
 202         }
 203
 204         void new_playlist ()
 205         {
 206                 shared_ptr<SignalSPL> spl (new SignalSPL(wx_to_std(_("New Playlist"))));
 207                 add_playlist_to_model (spl);
 208                 add_playlist_to_view (spl);
 209                 _list->SetItemState (_list->GetItemCount() - 1, wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 210         }
 211
 212         void delete_playlist ()
 213         {
 214                 long int selected = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 215                 if (selected < 0 || selected >= int(_playlists.size())) {
 216                         return;
 217                 }
 218
 219                 optional<boost::filesystem::path> dir = Config::instance()->player_playlist_directory();
 220                 if (!dir) {
 221                         return;
 222                 }
 223
 224                 boost::filesystem::remove (*dir / (_playlists[selected]->id() + ".xml"));
 225                 _list->DeleteItem (selected);
 226                 _playlists.erase (_playlists.begin() + selected);
 227
 228                 Edit (shared_ptr<SignalSPL>());
 229         }
 230
 231         void selection_changed ()
 232         {
 233                 long int selected = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 234                 if (selected < 0 || selected >= int(_playlists.size())) {
 235                         Edit (shared_ptr<SignalSPL>());
 236                 } else {
 237                         Edit (_playlists[selected]);
 238                 }
 239         }
 240
 241         wxBoxSizer* _sizer;
 242         wxListCtrl* _list;
 243         wxButton* _new;
 244         wxButton* _delete;
 245         vector<shared_ptr<SignalSPL> > _playlists;
 246         ContentStore* _content_store;
 247 };
 248
 249
 250 class PlaylistContent
 251 {
 252 public:
 253         PlaylistContent (wxPanel* parent, ContentDialog* content_dialog)
 254                 : _content_dialog (content_dialog)
 255                 , _sizer (new wxBoxSizer(wxVERTICAL))
 256         {
 257                 wxBoxSizer* title = new wxBoxSizer (wxHORIZONTAL);
 258                 wxStaticText* label = new wxStaticText (parent, wxID_ANY, wxEmptyString);
 259                 label->SetLabelMarkup (_("<b>Playlist:</b>"));
 260                 title->Add (label, 0, wxALIGN_CENTER_VERTICAL | wxRIGHT, DCPOMATIC_SIZER_GAP);
 261                 _name = new wxTextCtrl (parent, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(400, -1));
 262                 title->Add (_name, 0, wxRIGHT, DCPOMATIC_SIZER_GAP);
 263                 _sizer->Add (title, 0, wxTOP | wxLEFT, DCPOMATIC_SIZER_GAP * 2);
 264
 265                 wxBoxSizer* list = new wxBoxSizer (wxHORIZONTAL);
 266
 267                 _list = new wxListCtrl (
 268                         parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLC_REPORT | wxLC_SINGLE_SEL
 269                         );
 270
 271                 _list->AppendColumn (_("Name"), wxLIST_FORMAT_LEFT, 400);
 272                 _list->AppendColumn (_("CPL"), wxLIST_FORMAT_LEFT, 350);
 273                 _list->AppendColumn (_("Type"), wxLIST_FORMAT_LEFT, 100);
 274                 _list->AppendColumn (_("Encrypted"), wxLIST_FORMAT_CENTRE, 90);
 275
 276                 wxImageList* images = new wxImageList (16, 16);
 277                 wxIcon tick_icon;
 278                 wxIcon no_tick_icon;
 279                 tick_icon.LoadFile (bitmap_path("tick"), wxBITMAP_TYPE_PNG);
 280                 no_tick_icon.LoadFile (bitmap_path("no_tick"), wxBITMAP_TYPE_PNG);
 281                 images->Add (tick_icon);
 282                 images->Add (no_tick_icon);
 283
 284                 _list->SetImageList (images, wxIMAGE_LIST_SMALL);
 285
 286                 list->Add (_list, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 287
 288                 wxBoxSizer* button_sizer = new wxBoxSizer (wxVERTICAL);
 289                 _up = new Button (parent, _("Up"));
 290                 _down = new Button (parent, _("Down"));
 291                 _add = new Button (parent, _("Add"));
 292                 _remove = new Button (parent, _("Remove"));
 293                 button_sizer->Add (_up, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 294                 button_sizer->Add (_down, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 295                 button_sizer->Add (_add, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 296                 button_sizer->Add (_remove, 0, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
 297
 298                 list->Add (button_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 299
 300                 _sizer->Add (list);
 301
 302                 _list->Bind (wxEVT_COMMAND_LIST_ITEM_SELECTED, bind(&PlaylistContent::setup_sensitivity, this));
 303                 _list->Bind (wxEVT_COMMAND_LIST_ITEM_DESELECTED, bind(&PlaylistContent::setup_sensitivity, this));
 304                 _name->Bind (wxEVT_TEXT, bind(&PlaylistContent::name_changed, this));
 305                 _up->Bind (wxEVT_BUTTON, bind(&PlaylistContent::up_clicked, this));
 306                 _down->Bind (wxEVT_BUTTON, bind(&PlaylistContent::down_clicked, this));
 307                 _add->Bind (wxEVT_BUTTON, bind(&PlaylistContent::add_clicked, this));
 308                 _remove->Bind (wxEVT_BUTTON, bind(&PlaylistContent::remove_clicked, this));
 309         }
 310
 311         wxSizer* sizer ()
 312         {
 313                 return _sizer;
 314         }
 315
 316         void set (shared_ptr<SignalSPL> playlist)
 317         {
 318                 _playlist = playlist;
 319                 _list->DeleteAllItems ();
 320                 if (_playlist) {
 321                         BOOST_FOREACH (SPLEntry i, _playlist->get()) {
 322                                 add (i);
 323                         }
 324                         _name->SetValue (std_to_wx(_playlist->name()));
 325                 } else {
 326                         _name->SetValue (wxT(""));
 327                 }
 328                 setup_sensitivity ();
 329         }
 330
 331         shared_ptr<SignalSPL> playlist () const
 332         {
 333                 return _playlist;
 334         }
 335
 336
 337 private:
 338         void name_changed ()
 339         {
 340                 if (_playlist) {
 341                         _playlist->set_name (wx_to_std(_name->GetValue()));
 342                 }
 343         }
 344
 345         void add (SPLEntry e)
 346         {
 347                 wxListItem item;
 348                 item.SetId (_list->GetItemCount());
 349                 long const N = _list->InsertItem (item);
 350                 set_item (N, e);
 351         }
 352
 353         void set_item (long N, SPLEntry e)
 354         {
 355                 _list->SetItem (N, 0, std_to_wx(e.name));
 356                 _list->SetItem (N, 1, std_to_wx(e.id));
 357                 _list->SetItem (N, 2, std_to_wx(dcp::content_kind_to_string(e.kind)));
 358                 _list->SetItem (N, 3, e.encrypted ? S_("Question|Y") : S_("Question|N"));
 359         }
 360
 361         void setup_sensitivity ()
 362         {
 363                 bool const have_list = static_cast<bool>(_playlist);
 364                 int const num_selected = _list->GetSelectedItemCount ();
 365                 long int selected = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 366                 _name->Enable (have_list);
 367                 _list->Enable (have_list);
 368                 _up->Enable (have_list && selected > 0);
 369                 _down->Enable (have_list && selected != -1 && selected < (_list->GetItemCount() - 1));
 370                 _add->Enable (have_list);
 371                 _remove->Enable (have_list && num_selected > 0);
 372         }
 373
 374         void add_clicked ()
 375         {
 376                 int const r = _content_dialog->ShowModal ();
 377                 if (r == wxID_OK) {
 378                         shared_ptr<Content> content = _content_dialog->selected ();
 379                         if (content) {
 380                                 SPLEntry e (content);
 381                                 add (e);
 382                                 DCPOMATIC_ASSERT (_playlist);
 383                                 _playlist->add (e);
 384                         }
 385                 }
 386         }
 387
 388         void up_clicked ()
 389         {
 390                 long int s = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 391                 if (s < 1) {
 392                         return;
 393                 }
 394
 395                 DCPOMATIC_ASSERT (_playlist);
 396
 397                 SPLEntry tmp = (*_playlist)[s];
 398                 (*_playlist)[s] = (*_playlist)[s-1];
 399                 (*_playlist)[s-1] = tmp;
 400
 401                 set_item (s - 1, (*_playlist)[s-1]);
 402                 set_item (s, (*_playlist)[s]);
 403         }
 404
 405         void down_clicked ()
 406         {
 407                 long int s = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 408                 if (s > (_list->GetItemCount() - 1)) {
 409                         return;
 410                 }
 411
 412                 DCPOMATIC_ASSERT (_playlist);
 413
 414                 SPLEntry tmp = (*_playlist)[s];
 415                 (*_playlist)[s] = (*_playlist)[s+1];
 416                 (*_playlist)[s+1] = tmp;
 417
 418                 set_item (s + 1, (*_playlist)[s+1]);
 419                 set_item (s, (*_playlist)[s]);
 420         }
 421
 422         void remove_clicked ()
 423         {
 424                 long int s = _list->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
 425                 if (s == -1) {
 426                         return;
 427                 }
 428
 429                 DCPOMATIC_ASSERT (_playlist);
 430                 _playlist->remove (s);
 431                 _list->DeleteItem (s);
 432         }
 433
 434         ContentDialog* _content_dialog;
 435         wxBoxSizer* _sizer;
 436         wxTextCtrl* _name;
 437         wxListCtrl* _list;
 438         wxButton* _up;
 439         wxButton* _down;
 440         wxButton* _add;
 441         wxButton* _remove;
 442         shared_ptr<SignalSPL> _playlist;
 443 };
 444
 445
 446 class DOMFrame : public wxFrame
 447 {
 448 public:
 449         explicit DOMFrame (wxString const & title)
 450                 : wxFrame (0, -1, title)
 451                 , _content_dialog (new ContentDialog(this))
 452                 , _config_dialog (0)
 453         {
 454                 wxMenuBar* bar = new wxMenuBar;
 455                 setup_menu (bar);
 456                 SetMenuBar (bar);
 457
 458                 /* Use a panel as the only child of the Frame so that we avoid
 459                    the dark-grey background on Windows.
 460                 */
 461                 wxPanel* overall_panel = new wxPanel (this, wxID_ANY);
 462                 wxBoxSizer* sizer = new wxBoxSizer (wxVERTICAL);
 463
 464                 _playlist_list = new PlaylistList (overall_panel, _content_dialog);
 465                 _playlist_content = new PlaylistContent (overall_panel, _content_dialog);
 466
 467                 sizer->Add (_playlist_list->sizer());
 468                 sizer->Add (_playlist_content->sizer());
 469
 470                 overall_panel->SetSizer (sizer);
 471
 472                 _playlist_list->Edit.connect (bind(&DOMFrame::change_playlist, this, _1));
 473
 474                 _playlist_content->set (_playlist_list->first_playlist());
 475
 476                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::file_exit, this), wxID_EXIT);
 477                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::help_about, this), wxID_ABOUT);
 478                 Bind (wxEVT_MENU, boost::bind (&DOMFrame::edit_preferences, this), wxID_PREFERENCES);
 479         }
 480
 481 private:
 482
 483         void file_exit ()
 484         {
 485                 /* false here allows the close handler to veto the close request */
 486                 Close (false);
 487         }
 488
 489         void help_about ()
 490         {
 491                 AboutDialog* d = new AboutDialog (this);
 492                 d->ShowModal ();
 493                 d->Destroy ();
 494         }
 495
 496         void edit_preferences ()
 497         {
 498                 if (!_config_dialog) {
 499                         _config_dialog = create_playlist_editor_config_dialog ();
 500                 }
 501                 _config_dialog->Show (this);
 502         }
 503
 504         void change_playlist (shared_ptr<SignalSPL> playlist)
 505         {
 506                 shared_ptr<SignalSPL> old = _playlist_content->playlist ();
 507                 if (old) {
 508                         save_playlist (old);
 509                 }
 510                 _playlist_content->set (playlist);
 511         }
 512
 513         void save_playlist (shared_ptr<SignalSPL> playlist)
 514         {
 515                 optional<boost::filesystem::path> dir = Config::instance()->player_playlist_directory();
 516                 if (!dir) {
 517                         error_dialog (this, _("No playlist folder is specified in preferences.  Please set one and then try again."));
 518                         return;
 519                 }
 520                 playlist->write (*dir / (playlist->id() + ".xml"));
 521         }
 522
 523         void setup_menu (wxMenuBar* m)
 524         {
 525                 wxMenu* file = new wxMenu;
 526 #ifdef __WXOSX__
 527                 file->Append (wxID_EXIT, _("&Exit"));
 528 #else
 529                 file->Append (wxID_EXIT, _("&Quit"));
 530 #endif
 531
 532 #ifndef __WXOSX__
 533                 wxMenu* edit = new wxMenu;
 534                 edit->Append (wxID_PREFERENCES, _("&Preferences...\tCtrl-P"));
 535 #endif
 536
 537                 wxMenu* help = new wxMenu;
 538 #ifdef __WXOSX__
 539                 help->Append (wxID_ABOUT, _("About DCP-o-matic"));
 540 #else
 541                 help->Append (wxID_ABOUT, _("About"));
 542 #endif
 543
 544                 m->Append (file, _("&File"));
 545 #ifndef __WXOSX__
 546                 m->Append (edit, _("&Edit"));
 547 #endif
 548                 m->Append (help, _("&Help"));
 549         }
 550
 551         ContentDialog* _content_dialog;
 552         PlaylistList* _playlist_list;
 553         PlaylistContent* _playlist_content;
 554         wxPreferencesEditor* _config_dialog;
 555 };
 556
 557 /** @class App
 558  *  @brief The magic App class for wxWidgets.
 559  */
 560 class App : public wxApp
 561 {
 562 public:
 563         App ()
 564                 : wxApp ()
 565                 , _frame (0)
 566         {}
 567
 568 private:
 569
 570         bool OnInit ()
 571         try
 572         {
 573                 wxInitAllImageHandlers ();
 574                 SetAppName (_("DCP-o-matic Playlist Editor"));
 575
 576                 if (!wxApp::OnInit()) {
 577                         return false;
 578                 }
 579
 580 #ifdef DCPOMATIC_LINUX
 581                 unsetenv ("UBUNTU_MENUPROXY");
 582 #endif
 583
 584 #ifdef DCPOMATIC_OSX
 585                 make_foreground_application ();
 586 #endif
 587
 588                 dcpomatic_setup_path_encoding ();
 589
 590                 /* Enable i18n; this will create a Config object
 591                    to look for a force-configured language.  This Config
 592                    object will be wrong, however, because dcpomatic_setup
 593                    hasn't yet been called and there aren't any filters etc.
 594                    set up yet.
 595                 */
 596                 dcpomatic_setup_i18n ();
 597
 598                 /* Set things up, including filters etc.
 599                    which will now be internationalised correctly.
 600                 */
 601                 dcpomatic_setup ();
 602
 603                 /* Force the configuration to be re-loaded correctly next
 604                    time it is needed.
 605                 */
 606                 Config::drop ();
 607
 608                 _frame = new DOMFrame (_("DCP-o-matic Playlist Editor"));
 609                 SetTopWindow (_frame);
 610                 _frame->Maximize ();
 611                 _frame->Show ();
 612
 613                 signal_manager = new wxSignalManager (this);
 614                 Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
 615
 616                 return true;
 617         }
 618         catch (exception& e)
 619         {
 620                 error_dialog (0, _("DCP-o-matic could not start"), std_to_wx(e.what()));
 621                 return true;
 622         }
 623
 624         /* An unhandled exception has occurred inside the main event loop */
 625         bool OnExceptionInMainLoop ()
 626         {
 627                 try {
 628                         throw;
 629                 } catch (FileError& e) {
 630                         error_dialog (
 631                                 0,
 632                                 wxString::Format (
 633                                         _("An exception occurred: %s (%s)\n\n") + REPORT_PROBLEM,
 634                                         std_to_wx (e.what()),
 635                                         std_to_wx (e.file().string().c_str ())
 636                                         )
 637                                 );
 638                 } catch (exception& e) {
 639                         error_dialog (
 640                                 0,
 641                                 wxString::Format (
 642                                         _("An exception occurred: %s.\n\n") + " " + REPORT_PROBLEM,
 643                                         std_to_wx (e.what ())
 644                                         )
 645                                 );
 646                 } catch (...) {
 647                         error_dialog (0, _("An unknown exception occurred.") + "  " + REPORT_PROBLEM);
 648                 }
 649
 650                 /* This will terminate the program */
 651                 return false;
 652         }
 653
 654         void OnUnhandledException ()
 655         {
 656                 error_dialog (0, _("An unknown exception occurred.") + "  " + REPORT_PROBLEM);
 657         }
 658
 659         void idle ()
 660         {
 661                 signal_manager->ui_idle ();
 662         }
 663
 664         DOMFrame* _frame;
 665 };
 666
 667 IMPLEMENT_APP (App)