src/wx/screens_panel.cc

   1 /*
   2     Copyright (C) 2015-2022 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 "cinema_dialog.h"
  23 #include "dcpomatic_button.h"
  24 #include "screen_dialog.h"
  25 #include "screens_panel.h"
  26 #include "wx_util.h"
  27 #include "lib/cinema.h"
  28 #include "lib/config.h"
  29 #include "lib/scope_guard.h"
  30 #include "lib/screen.h"
  31 #include "lib/timer.h"
  32
  33
  34 using std::cout;
  35 using std::list;
  36 using std::make_pair;
  37 using std::make_shared;
  38 using std::map;
  39 using std::pair;
  40 using std::shared_ptr;
  41 using std::string;
  42 using std::vector;
  43 using boost::optional;
  44 #if BOOST_VERSION >= 106100
  45 using namespace boost::placeholders;
  46 #endif
  47 using namespace dcpomatic;
  48
  49
  50 ScreensPanel::ScreensPanel (wxWindow* parent)
  51         : wxPanel (parent, wxID_ANY)
  52 {
  53         auto sizer = new wxBoxSizer (wxVERTICAL);
  54
  55         _search = new wxSearchCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(200, search_ctrl_height()));
  56 #ifndef __WXGTK3__
  57         /* The cancel button seems to be strangely broken in GTK3; clicking on it twice sometimes works */
  58         _search->ShowCancelButton (true);
  59 #endif
  60         sizer->Add (_search, 0, wxBOTTOM, DCPOMATIC_SIZER_GAP);
  61
  62         auto targets = new wxBoxSizer (wxHORIZONTAL);
  63         _targets = new wxTreeListCtrl (this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTL_MULTIPLE | wxTL_3STATE | wxTL_NO_HEADER);
  64         _targets->AppendColumn (wxT("foo"));
  65
  66         targets->Add (_targets, 1, wxEXPAND | wxRIGHT, DCPOMATIC_SIZER_GAP);
  67
  68         add_cinemas ();
  69
  70         auto side_buttons = new wxBoxSizer (wxVERTICAL);
  71
  72         auto target_buttons = new wxBoxSizer (wxVERTICAL);
  73
  74         _add_cinema = new Button (this, _("Add Cinema..."));
  75         target_buttons->Add (_add_cinema, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  76         _edit_cinema = new Button (this, _("Edit Cinema..."));
  77         target_buttons->Add (_edit_cinema, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  78         _remove_cinema = new Button (this, _("Remove Cinema"));
  79         target_buttons->Add (_remove_cinema, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  80         _add_screen = new Button (this, _("Add Screen..."));
  81         target_buttons->Add (_add_screen, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  82         _edit_screen = new Button (this, _("Edit Screen..."));
  83         target_buttons->Add (_edit_screen, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  84         _remove_screen = new Button (this, _("Remove Screen"));
  85         target_buttons->Add (_remove_screen, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  86
  87         side_buttons->Add (target_buttons, 0, 0);
  88
  89         auto check_buttons = new wxBoxSizer (wxVERTICAL);
  90
  91         _check_all = new Button (this, _("Check all"));
  92         check_buttons->Add (_check_all, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  93         _uncheck_all = new Button (this, _("Uncheck all"));
  94         check_buttons->Add (_uncheck_all, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  95
  96         side_buttons->Add (check_buttons, 1, wxEXPAND | wxTOP, DCPOMATIC_BUTTON_STACK_GAP * 8);
  97
  98         targets->Add (side_buttons, 0, 0);
  99
 100         sizer->Add (targets, 1, wxEXPAND);
 101
 102         _search->Bind        (wxEVT_TEXT, boost::bind (&ScreensPanel::search_changed, this));
 103         _targets->Bind       (wxEVT_TREELIST_SELECTION_CHANGED, &ScreensPanel::selection_changed_shim, this);
 104         _targets->Bind       (wxEVT_TREELIST_ITEM_CHECKED, &ScreensPanel::checkbox_changed, this);
 105         _targets->Bind       (wxEVT_TREELIST_ITEM_ACTIVATED, &ScreensPanel::item_activated, this);
 106
 107         _add_cinema->Bind    (wxEVT_BUTTON, boost::bind (&ScreensPanel::add_cinema_clicked, this));
 108         _edit_cinema->Bind   (wxEVT_BUTTON, boost::bind (&ScreensPanel::edit_cinema_clicked, this));
 109         _remove_cinema->Bind (wxEVT_BUTTON, boost::bind (&ScreensPanel::remove_cinema_clicked, this));
 110
 111         _add_screen->Bind    (wxEVT_BUTTON, boost::bind (&ScreensPanel::add_screen_clicked, this));
 112         _edit_screen->Bind   (wxEVT_BUTTON, boost::bind (&ScreensPanel::edit_screen_clicked, this));
 113         _remove_screen->Bind (wxEVT_BUTTON, boost::bind (&ScreensPanel::remove_screen_clicked, this));
 114
 115         _check_all->Bind     (wxEVT_BUTTON, boost::bind(&ScreensPanel::check_all, this));
 116         _uncheck_all->Bind   (wxEVT_BUTTON, boost::bind(&ScreensPanel::uncheck_all, this));
 117
 118         SetSizer (sizer);
 119
 120         _config_connection = Config::instance()->Changed.connect(boost::bind(&ScreensPanel::config_changed, this, _1));
 121 }
 122
 123
 124 ScreensPanel::~ScreensPanel ()
 125 {
 126         _targets->Unbind (wxEVT_TREELIST_SELECTION_CHANGED, &ScreensPanel::selection_changed_shim, this);
 127         _targets->Unbind (wxEVT_TREELIST_ITEM_CHECKED, &ScreensPanel::checkbox_changed, this);
 128 }
 129
 130
 131 void
 132 ScreensPanel::check_all ()
 133 {
 134         for (auto cinema = _targets->GetFirstChild(_targets->GetRootItem()); cinema.IsOk();  cinema = _targets->GetNextSibling(cinema)) {
 135                 _targets->CheckItem(cinema, wxCHK_CHECKED);
 136                 for (auto screen = _targets->GetFirstChild(cinema); screen.IsOk(); screen = _targets->GetNextSibling(screen)) {
 137                         _targets->CheckItem(screen, wxCHK_CHECKED);
 138                         set_screen_checked(screen, true);
 139                 }
 140         }
 141 }
 142
 143
 144 void
 145 ScreensPanel::uncheck_all ()
 146 {
 147         for (auto cinema = _targets->GetFirstChild(_targets->GetRootItem()); cinema.IsOk();  cinema = _targets->GetNextSibling(cinema)) {
 148                 _targets->CheckItem(cinema, wxCHK_UNCHECKED);
 149                 for (auto screen = _targets->GetFirstChild(cinema); screen.IsOk(); screen = _targets->GetNextSibling(screen)) {
 150                         _targets->CheckItem(screen, wxCHK_UNCHECKED);
 151                         set_screen_checked(screen, false);
 152                 }
 153         }
 154 }
 155
 156
 157 void
 158 ScreensPanel::setup_sensitivity ()
 159 {
 160         bool const sc = _selected_cinemas.size() == 1;
 161         bool const ss = _selected_screens.size() == 1;
 162
 163         _edit_cinema->Enable (sc || ss);
 164         _remove_cinema->Enable (_selected_cinemas.size() >= 1);
 165
 166         _add_screen->Enable (sc || ss);
 167         _edit_screen->Enable (ss);
 168         _remove_screen->Enable (_selected_screens.size() >= 1);
 169 }
 170
 171
 172 void
 173 ScreensPanel::convert_to_lower(string& s)
 174 {
 175         transform(s.begin(), s.end(), s.begin(), ::tolower);
 176 }
 177
 178
 179 bool
 180 ScreensPanel::matches_search(shared_ptr<const Cinema> cinema, string lower_case_search)
 181 {
 182         if (lower_case_search.empty()) {
 183                 return true;
 184         }
 185
 186         auto name = cinema->name;
 187         convert_to_lower(name);
 188         return name.find(lower_case_search) != string::npos;
 189 }
 190
 191
 192 optional<wxTreeListItem>
 193 ScreensPanel::add_cinema (shared_ptr<Cinema> cinema, wxTreeListItem previous)
 194 {
 195         auto search = wx_to_std (_search->GetValue ());
 196         convert_to_lower(search);
 197         if (!matches_search(cinema, search)) {
 198                 return {};
 199         }
 200
 201         auto id = _targets->InsertItem(_targets->GetRootItem(), previous, std_to_wx(cinema->name));
 202
 203         _item_to_cinema[id] = cinema;
 204         _cinema_to_item[cinema] = id;
 205
 206         for (auto screen: cinema->screens()) {
 207                 add_screen (cinema, screen);
 208         }
 209
 210         return id;
 211 }
 212
 213
 214 optional<wxTreeListItem>
 215 ScreensPanel::add_screen (shared_ptr<Cinema> cinema, shared_ptr<Screen> screen)
 216 {
 217         auto item = cinema_to_item(cinema);
 218         if (!item) {
 219                 return {};
 220         }
 221
 222         auto id = _targets->AppendItem(*item, std_to_wx(screen->name));
 223
 224         _item_to_screen[id] = screen;
 225         _screen_to_item[screen] = id;
 226
 227         return item;
 228 }
 229
 230
 231 void
 232 ScreensPanel::add_cinema_clicked ()
 233 {
 234         CinemaDialog dialog(GetParent(), _("Add Cinema"));
 235
 236         if (dialog.ShowModal() == wxID_OK) {
 237                 auto cinema = make_shared<Cinema>(dialog.name(), dialog.emails(), dialog.notes(), dialog.utc_offset_hour(), dialog.utc_offset_minute());
 238
 239                 auto cinemas = sorted_cinemas();
 240
 241                 try {
 242                         _ignore_cinemas_changed = true;
 243                         ScopeGuard sg = [this]() { _ignore_cinemas_changed = false; };
 244                         Config::instance()->add_cinema(cinema);
 245                 } catch (FileError& e) {
 246                         error_dialog(GetParent(), _("Could not write cinema details to the cinemas.xml file.  Check that the location of cinemas.xml is valid in DCP-o-matic's preferences."), std_to_wx(e.what()));
 247                         return;
 248                 }
 249
 250                 wxTreeListItem previous = wxTLI_FIRST;
 251                 bool found = false;
 252                 auto search = wx_to_std(_search->GetValue());
 253                 convert_to_lower(search);
 254                 for (auto existing_cinema: cinemas) {
 255                         if (!matches_search(existing_cinema, search)) {
 256                                 continue;
 257                         }
 258                         if (_collator.compare(dialog.name(), existing_cinema->name) < 0) {
 259                                 /* existing_cinema should be after the one we're inserting */
 260                                 found = true;
 261                                 break;
 262                         }
 263                         auto item = cinema_to_item(existing_cinema);
 264                         DCPOMATIC_ASSERT(item);
 265                         previous = *item;
 266                 }
 267
 268                 auto item = add_cinema(cinema, found ? previous : wxTLI_LAST);
 269
 270                 if (item) {
 271                         _targets->UnselectAll ();
 272                         _targets->Select (*item);
 273                 }
 274         }
 275
 276         selection_changed ();
 277 }
 278
 279
 280 shared_ptr<Cinema>
 281 ScreensPanel::cinema_for_operation () const
 282 {
 283         if (_selected_cinemas.size() == 1) {
 284                 return _selected_cinemas[0];
 285         } else if (_selected_screens.size() == 1) {
 286                 return _selected_screens[0]->cinema;
 287         }
 288
 289         return {};
 290 }
 291
 292
 293 void
 294 ScreensPanel::edit_cinema_clicked ()
 295 {
 296         auto cinema = cinema_for_operation ();
 297         if (cinema) {
 298                 edit_cinema(cinema);
 299         }
 300 }
 301
 302
 303 void
 304 ScreensPanel::edit_cinema(shared_ptr<Cinema> cinema)
 305 {
 306         CinemaDialog dialog(
 307                 GetParent(), _("Edit cinema"), cinema->name, cinema->emails, cinema->notes, cinema->utc_offset_hour(), cinema->utc_offset_minute()
 308                 );
 309
 310         if (dialog.ShowModal() == wxID_OK) {
 311                 cinema->name = dialog.name();
 312                 cinema->emails = dialog.emails();
 313                 cinema->notes = dialog.notes();
 314                 cinema->set_utc_offset_hour(dialog.utc_offset_hour());
 315                 cinema->set_utc_offset_minute(dialog.utc_offset_minute());
 316                 notify_cinemas_changed();
 317                 auto item = cinema_to_item(cinema);
 318                 DCPOMATIC_ASSERT(item);
 319                 _targets->SetItemText (*item, std_to_wx(dialog.name()));
 320         }
 321 }
 322
 323
 324 void
 325 ScreensPanel::remove_cinema_clicked ()
 326 {
 327         if (_selected_cinemas.size() == 1) {
 328                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove the cinema '%s'?"), std_to_wx(_selected_cinemas[0]->name)))) {
 329                         return;
 330                 }
 331         } else {
 332                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove %d cinemas?"), int(_selected_cinemas.size())))) {
 333                         return;
 334                 }
 335         }
 336
 337         for (auto const& cinema: _selected_cinemas) {
 338                 _ignore_cinemas_changed = true;
 339                 ScopeGuard sg = [this]() { _ignore_cinemas_changed = false; };
 340                 Config::instance()->remove_cinema(cinema);
 341                 auto item = cinema_to_item(cinema);
 342                 DCPOMATIC_ASSERT(item);
 343                 _targets->DeleteItem(*item);
 344         }
 345
 346         selection_changed ();
 347 }
 348
 349
 350 void
 351 ScreensPanel::add_screen_clicked ()
 352 {
 353         auto cinema = cinema_for_operation ();
 354         if (!cinema) {
 355                 return;
 356         }
 357
 358         ScreenDialog dialog(GetParent(), _("Add Screen"));
 359
 360         if (dialog.ShowModal () != wxID_OK) {
 361                 return;
 362         }
 363
 364         for (auto screen: cinema->screens()) {
 365                 if (screen->name == dialog.name()) {
 366                         error_dialog (
 367                                 GetParent(),
 368                                 wxString::Format (
 369                                         _("You cannot add a screen called '%s' as the cinema already has a screen with this name."),
 370                                         std_to_wx(dialog.name()).data()
 371                                         )
 372                                 );
 373                         return;
 374                 }
 375         }
 376
 377         auto screen = std::make_shared<Screen>(dialog.name(), dialog.notes(), dialog.recipient(), dialog.recipient_file(), dialog.trusted_devices());
 378         cinema->add_screen (screen);
 379         notify_cinemas_changed();
 380
 381         auto id = add_screen (cinema, screen);
 382         if (id) {
 383                 _targets->Expand (id.get ());
 384         }
 385 }
 386
 387
 388 void
 389 ScreensPanel::edit_screen_clicked ()
 390 {
 391         if (_selected_screens.size() == 1) {
 392                 edit_screen(_selected_screens[0]);
 393         }
 394 }
 395
 396
 397 void
 398 ScreensPanel::edit_screen(shared_ptr<Screen> edit_screen)
 399 {
 400         ScreenDialog dialog(
 401                 GetParent(), _("Edit screen"),
 402                 edit_screen->name,
 403                 edit_screen->notes,
 404                 edit_screen->recipient,
 405                 edit_screen->recipient_file,
 406                 edit_screen->trusted_devices
 407                 );
 408
 409         if (dialog.ShowModal() != wxID_OK) {
 410                 return;
 411         }
 412
 413         auto cinema = edit_screen->cinema;
 414         for (auto screen: cinema->screens()) {
 415                 if (screen != edit_screen && screen->name == dialog.name()) {
 416                         error_dialog (
 417                                 GetParent(),
 418                                 wxString::Format (
 419                                         _("You cannot change this screen's name to '%s' as the cinema already has a screen with this name."),
 420                                         std_to_wx(dialog.name()).data()
 421                                         )
 422                                 );
 423                         return;
 424                 }
 425         }
 426
 427         edit_screen->name = dialog.name();
 428         edit_screen->notes = dialog.notes();
 429         edit_screen->recipient = dialog.recipient();
 430         edit_screen->recipient_file = dialog.recipient_file();
 431         edit_screen->trusted_devices = dialog.trusted_devices();
 432         notify_cinemas_changed();
 433
 434         auto item = screen_to_item(edit_screen);
 435         DCPOMATIC_ASSERT (item);
 436         _targets->SetItemText(*item, std_to_wx(dialog.name()));
 437 }
 438
 439
 440 void
 441 ScreensPanel::remove_screen_clicked ()
 442 {
 443         if (_selected_screens.size() == 1) {
 444                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove the screen '%s'?"), std_to_wx(_selected_screens[0]->name)))) {
 445                         return;
 446                 }
 447         } else {
 448                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove %d screens?"), int(_selected_screens.size())))) {
 449                         return;
 450                 }
 451         }
 452
 453         for (auto const& screen: _selected_screens) {
 454                 screen->cinema->remove_screen(screen);
 455                 auto item = screen_to_item(screen);
 456                 DCPOMATIC_ASSERT(item);
 457                 _targets->DeleteItem(*item);
 458         }
 459
 460         /* This is called by the signal on Linux, but not it seems on Windows, so we call it ourselves
 461          * as well.
 462          */
 463         selection_changed();
 464         notify_cinemas_changed();
 465 }
 466
 467
 468 vector<shared_ptr<Screen>>
 469 ScreensPanel::screens () const
 470 {
 471         vector<shared_ptr<Screen>> output;
 472         std::copy (_checked_screens.begin(), _checked_screens.end(), std::back_inserter(output));
 473         return output;
 474 }
 475
 476
 477 void
 478 ScreensPanel::selection_changed_shim (wxTreeListEvent &)
 479 {
 480         selection_changed ();
 481 }
 482
 483
 484 void
 485 ScreensPanel::selection_changed ()
 486 {
 487         if (_ignore_selection_change) {
 488                 return;
 489         }
 490
 491         wxTreeListItems selection;
 492         _targets->GetSelections (selection);
 493
 494         _selected_cinemas.clear ();
 495         _selected_screens.clear ();
 496
 497         for (size_t i = 0; i < selection.size(); ++i) {
 498                 if (auto cinema = item_to_cinema(selection[i])) {
 499                         _selected_cinemas.push_back(cinema);
 500                 }
 501                 if (auto screen = item_to_screen(selection[i])) {
 502                         _selected_screens.push_back(screen);
 503                 }
 504         }
 505
 506         setup_sensitivity ();
 507 }
 508
 509
 510 list<shared_ptr<Cinema>>
 511 ScreensPanel::sorted_cinemas() const
 512 {
 513         auto cinemas = Config::instance()->cinemas();
 514
 515         cinemas.sort(
 516                 [this](shared_ptr<Cinema> a, shared_ptr<Cinema> b) { return _collator.compare(a->name, b->name) < 0; }
 517                 );
 518
 519         return cinemas;
 520 }
 521
 522
 523 void
 524 ScreensPanel::add_cinemas ()
 525 {
 526         for (auto cinema: sorted_cinemas()) {
 527                 add_cinema (cinema, wxTLI_LAST);
 528         }
 529 }
 530
 531
 532 void
 533 ScreensPanel::clear_and_re_add()
 534 {
 535         _targets->DeleteAllItems ();
 536
 537         _item_to_cinema.clear ();
 538         _cinema_to_item.clear ();
 539         _item_to_screen.clear ();
 540         _screen_to_item.clear ();
 541
 542         add_cinemas ();
 543 }
 544
 545
 546 void
 547 ScreensPanel::search_changed ()
 548 {
 549         clear_and_re_add();
 550
 551         _ignore_selection_change = true;
 552
 553         for (auto const& selection: _selected_cinemas) {
 554                 if (auto item = cinema_to_item(selection)) {
 555                         _targets->Select (*item);
 556                 }
 557         }
 558
 559         for (auto const& selection: _selected_screens) {
 560                 if (auto item = screen_to_item(selection)) {
 561                         _targets->Select (*item);
 562                 }
 563         }
 564
 565         _ignore_selection_change = false;
 566
 567         _ignore_check_change = true;
 568
 569         for (auto const& checked: _checked_screens) {
 570                 if (auto item = screen_to_item(checked)) {
 571                         _targets->CheckItem(*item, wxCHK_CHECKED);
 572                         setup_cinema_checked_state(*item);
 573                 }
 574         }
 575
 576         _ignore_check_change = false;
 577 }
 578
 579
 580 void
 581 ScreensPanel::set_screen_checked (wxTreeListItem item, bool checked)
 582 {
 583         auto screen = item_to_screen(item);
 584         DCPOMATIC_ASSERT(screen);
 585         if (checked) {
 586                 _checked_screens.insert(screen);
 587         } else {
 588                 _checked_screens.erase(screen);
 589         }
 590 }
 591
 592
 593 void
 594 ScreensPanel::setup_cinema_checked_state (wxTreeListItem screen)
 595 {
 596         auto cinema = _targets->GetItemParent(screen);
 597         DCPOMATIC_ASSERT (cinema.IsOk());
 598         int checked = 0;
 599         int unchecked = 0;
 600         for (auto child = _targets->GetFirstChild(cinema); child.IsOk(); child = _targets->GetNextSibling(child)) {
 601                 if (_targets->GetCheckedState(child) == wxCHK_CHECKED) {
 602                     ++checked;
 603                 } else {
 604                     ++unchecked;
 605                 }
 606         }
 607         if (checked == 0) {
 608                 _targets->CheckItem(cinema, wxCHK_UNCHECKED);
 609         } else if (unchecked == 0) {
 610                 _targets->CheckItem(cinema, wxCHK_CHECKED);
 611         } else {
 612                 _targets->CheckItem(cinema, wxCHK_UNDETERMINED);
 613         }
 614 }
 615
 616
 617 void
 618 ScreensPanel::checkbox_changed (wxTreeListEvent& ev)
 619 {
 620         if (_ignore_check_change) {
 621                 return;
 622         }
 623
 624         if (item_to_cinema(ev.GetItem())) {
 625                 /* Cinema: check/uncheck all children */
 626                 auto const checked = _targets->GetCheckedState(ev.GetItem());
 627                 for (auto child = _targets->GetFirstChild(ev.GetItem()); child.IsOk(); child = _targets->GetNextSibling(child)) {
 628                         _targets->CheckItem(child, checked);
 629                         set_screen_checked(child, checked);
 630                 }
 631         } else {
 632                 set_screen_checked(ev.GetItem(), _targets->GetCheckedState(ev.GetItem()));
 633                 setup_cinema_checked_state(ev.GetItem());
 634         }
 635
 636         ScreensChanged ();
 637 }
 638
 639
 640 shared_ptr<Cinema>
 641 ScreensPanel::item_to_cinema (wxTreeListItem item) const
 642 {
 643         auto iter = _item_to_cinema.find (item);
 644         if (iter == _item_to_cinema.end()) {
 645                 return {};
 646         }
 647
 648         return iter->second;
 649 }
 650
 651
 652 shared_ptr<Screen>
 653 ScreensPanel::item_to_screen (wxTreeListItem item) const
 654 {
 655         auto iter = _item_to_screen.find (item);
 656         if (iter == _item_to_screen.end()) {
 657                 return {};
 658         }
 659
 660         return iter->second;
 661 }
 662
 663
 664 optional<wxTreeListItem>
 665 ScreensPanel::cinema_to_item (shared_ptr<Cinema> cinema) const
 666 {
 667         auto iter = _cinema_to_item.find (cinema);
 668         if (iter == _cinema_to_item.end()) {
 669                 return {};
 670         }
 671
 672         return iter->second;
 673 }
 674
 675
 676 optional<wxTreeListItem>
 677 ScreensPanel::screen_to_item (shared_ptr<Screen> screen) const
 678 {
 679         auto iter = _screen_to_item.find (screen);
 680         if (iter == _screen_to_item.end()) {
 681                 return {};
 682         }
 683
 684         return iter->second;
 685 }
 686
 687
 688 bool
 689 ScreensPanel::notify_cinemas_changed()
 690 {
 691         _ignore_cinemas_changed = true;
 692         ScopeGuard sg = [this]() { _ignore_cinemas_changed = false; };
 693
 694         try {
 695                 Config::instance()->changed(Config::CINEMAS);
 696         } catch (FileError& e) {
 697                 error_dialog(GetParent(), _("Could not write cinema details to the cinemas.xml file.  Check that the location of cinemas.xml is valid in DCP-o-matic's preferences."), std_to_wx(e.what()));
 698                 return false;
 699         }
 700
 701         return true;
 702 }
 703
 704
 705 void
 706 ScreensPanel::config_changed(Config::Property property)
 707 {
 708         if (property == Config::Property::CINEMAS && !_ignore_cinemas_changed) {
 709                 clear_and_re_add();
 710         }
 711 }
 712
 713
 714 void
 715 ScreensPanel::item_activated(wxTreeListEvent& ev)
 716 {
 717         auto iter = _item_to_cinema.find(ev.GetItem());
 718         if (iter != _item_to_cinema.end()) {
 719                 edit_cinema(iter->second);
 720         } else {
 721                 auto iter = _item_to_screen.find(ev.GetItem());
 722                 if (iter != _item_to_screen.end()) {
 723                         edit_screen(iter->second);
 724                 }
 725         }
 726 }
 727
 728