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 #include <unicode/putil.h>
  33 #include <unicode/ucol.h>
  34 #include <unicode/uiter.h>
  35 #include <unicode/utypes.h>
  36 #include <unicode/ustring.h>
  37
  38
  39 using std::cout;
  40 using std::make_pair;
  41 using std::make_shared;
  42 using std::map;
  43 using std::pair;
  44 using std::shared_ptr;
  45 using std::string;
  46 using std::vector;
  47 using boost::optional;
  48 #if BOOST_VERSION >= 106100
  49 using namespace boost::placeholders;
  50 #endif
  51 using namespace dcpomatic;
  52
  53
  54 ScreensPanel::ScreensPanel (wxWindow* parent)
  55         : wxPanel (parent, wxID_ANY)
  56 {
  57         auto sizer = new wxBoxSizer (wxVERTICAL);
  58
  59         _search = new wxSearchCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(200, search_ctrl_height()));
  60 #ifndef __WXGTK3__
  61         /* The cancel button seems to be strangely broken in GTK3; clicking on it twice sometimes works */
  62         _search->ShowCancelButton (true);
  63 #endif
  64         sizer->Add (_search, 0, wxBOTTOM, DCPOMATIC_SIZER_GAP);
  65
  66         auto targets = new wxBoxSizer (wxHORIZONTAL);
  67         _targets = new wxTreeListCtrl (this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTL_MULTIPLE | wxTL_3STATE | wxTL_NO_HEADER);
  68         _targets->AppendColumn (wxT("foo"));
  69
  70         targets->Add (_targets, 1, wxEXPAND | wxRIGHT, DCPOMATIC_SIZER_GAP);
  71
  72         add_cinemas ();
  73
  74         auto side_buttons = new wxBoxSizer (wxVERTICAL);
  75
  76         auto target_buttons = new wxBoxSizer (wxVERTICAL);
  77
  78         _add_cinema = new Button (this, _("Add Cinema..."));
  79         target_buttons->Add (_add_cinema, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  80         _edit_cinema = new Button (this, _("Edit Cinema..."));
  81         target_buttons->Add (_edit_cinema, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  82         _remove_cinema = new Button (this, _("Remove Cinema"));
  83         target_buttons->Add (_remove_cinema, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  84         _add_screen = new Button (this, _("Add Screen..."));
  85         target_buttons->Add (_add_screen, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  86         _edit_screen = new Button (this, _("Edit Screen..."));
  87         target_buttons->Add (_edit_screen, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  88         _remove_screen = new Button (this, _("Remove Screen"));
  89         target_buttons->Add (_remove_screen, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  90
  91         side_buttons->Add (target_buttons, 0, 0);
  92
  93         auto check_buttons = new wxBoxSizer (wxVERTICAL);
  94
  95         _check_all = new Button (this, _("Check all"));
  96         check_buttons->Add (_check_all, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  97         _uncheck_all = new Button (this, _("Uncheck all"));
  98         check_buttons->Add (_uncheck_all, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  99
 100         side_buttons->Add (check_buttons, 1, wxEXPAND | wxTOP, DCPOMATIC_BUTTON_STACK_GAP * 8);
 101
 102         targets->Add (side_buttons, 0, 0);
 103
 104         sizer->Add (targets, 1, wxEXPAND);
 105
 106         _search->Bind        (wxEVT_TEXT, boost::bind (&ScreensPanel::search_changed, this));
 107         _targets->Bind       (wxEVT_TREELIST_SELECTION_CHANGED, &ScreensPanel::selection_changed_shim, this);
 108         _targets->Bind       (wxEVT_TREELIST_ITEM_CHECKED, &ScreensPanel::checkbox_changed, this);
 109
 110         _add_cinema->Bind    (wxEVT_BUTTON, boost::bind (&ScreensPanel::add_cinema_clicked, this));
 111         _edit_cinema->Bind   (wxEVT_BUTTON, boost::bind (&ScreensPanel::edit_cinema_clicked, this));
 112         _remove_cinema->Bind (wxEVT_BUTTON, boost::bind (&ScreensPanel::remove_cinema_clicked, this));
 113
 114         _add_screen->Bind    (wxEVT_BUTTON, boost::bind (&ScreensPanel::add_screen_clicked, this));
 115         _edit_screen->Bind   (wxEVT_BUTTON, boost::bind (&ScreensPanel::edit_screen_clicked, this));
 116         _remove_screen->Bind (wxEVT_BUTTON, boost::bind (&ScreensPanel::remove_screen_clicked, this));
 117
 118         _check_all->Bind     (wxEVT_BUTTON, boost::bind(&ScreensPanel::check_all, this));
 119         _uncheck_all->Bind   (wxEVT_BUTTON, boost::bind(&ScreensPanel::uncheck_all, this));
 120
 121         SetSizer (sizer);
 122
 123         UErrorCode status = U_ZERO_ERROR;
 124         _collator = ucol_open(nullptr, &status);
 125         if (_collator) {
 126                 ucol_setAttribute(_collator, UCOL_NORMALIZATION_MODE, UCOL_ON, &status);
 127                 ucol_setAttribute(_collator, UCOL_STRENGTH, UCOL_PRIMARY, &status);
 128                 ucol_setAttribute(_collator, UCOL_ALTERNATE_HANDLING, UCOL_SHIFTED, &status);
 129         }
 130
 131         _config_connection = Config::instance()->Changed.connect(boost::bind(&ScreensPanel::config_changed, this, _1));
 132 }
 133
 134
 135 ScreensPanel::~ScreensPanel ()
 136 {
 137         _targets->Unbind (wxEVT_TREELIST_SELECTION_CHANGED, &ScreensPanel::selection_changed_shim, this);
 138         _targets->Unbind (wxEVT_TREELIST_ITEM_CHECKED, &ScreensPanel::checkbox_changed, this);
 139
 140         if (_collator) {
 141                 ucol_close (_collator);
 142         }
 143 }
 144
 145
 146 void
 147 ScreensPanel::check_all ()
 148 {
 149         for (auto cinema = _targets->GetFirstChild(_targets->GetRootItem()); cinema.IsOk();  cinema = _targets->GetNextSibling(cinema)) {
 150                 _targets->CheckItem(cinema, wxCHK_CHECKED);
 151                 for (auto screen = _targets->GetFirstChild(cinema); screen.IsOk(); screen = _targets->GetNextSibling(screen)) {
 152                         _targets->CheckItem(screen, wxCHK_CHECKED);
 153                         set_screen_checked(screen, true);
 154                 }
 155         }
 156 }
 157
 158
 159 void
 160 ScreensPanel::uncheck_all ()
 161 {
 162         for (auto cinema = _targets->GetFirstChild(_targets->GetRootItem()); cinema.IsOk();  cinema = _targets->GetNextSibling(cinema)) {
 163                 _targets->CheckItem(cinema, wxCHK_UNCHECKED);
 164                 for (auto screen = _targets->GetFirstChild(cinema); screen.IsOk(); screen = _targets->GetNextSibling(screen)) {
 165                         _targets->CheckItem(screen, wxCHK_UNCHECKED);
 166                         set_screen_checked(screen, false);
 167                 }
 168         }
 169 }
 170
 171
 172 void
 173 ScreensPanel::setup_sensitivity ()
 174 {
 175         bool const sc = _selected_cinemas.size() == 1;
 176         bool const ss = _selected_screens.size() == 1;
 177
 178         _edit_cinema->Enable (sc || ss);
 179         _remove_cinema->Enable (_selected_cinemas.size() >= 1);
 180
 181         _add_screen->Enable (sc || ss);
 182         _edit_screen->Enable (ss);
 183         _remove_screen->Enable (_selected_screens.size() >= 1);
 184 }
 185
 186
 187 optional<wxTreeListItem>
 188 ScreensPanel::add_cinema (shared_ptr<Cinema> cinema, wxTreeListItem previous)
 189 {
 190         auto search = wx_to_std (_search->GetValue ());
 191         transform (search.begin(), search.end(), search.begin(), ::tolower);
 192
 193         if (!search.empty ()) {
 194                 auto name = cinema->name;
 195                 transform (name.begin(), name.end(), name.begin(), ::tolower);
 196                 if (name.find (search) == string::npos) {
 197                         return {};
 198                 }
 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         auto dialog = new CinemaDialog (GetParent(), _("Add Cinema"));
 235         ScopeGuard sg = [dialog]() { dialog->Destroy(); };
 236
 237         if (dialog->ShowModal() == wxID_OK) {
 238                 auto cinema = make_shared<Cinema>(dialog->name(), dialog->emails(), dialog->notes(), dialog->utc_offset_hour(), dialog->utc_offset_minute());
 239
 240                 auto cinemas = Config::instance()->cinemas();
 241                 cinemas.sort(
 242                         [this](shared_ptr<Cinema> a, shared_ptr<Cinema> b) { return compare(a->name, b->name) < 0; }
 243                         );
 244
 245                 try {
 246                         Config::instance()->add_cinema(cinema);
 247                 } catch (FileError& e) {
 248                         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()));
 249                         return;
 250                 }
 251
 252                 optional<wxTreeListItem> item;
 253                 for (auto existing_cinema: cinemas) {
 254                         if (!item && compare(dialog->name(), existing_cinema->name) < 0) {
 255                                 if (auto existing_item = cinema_to_item(existing_cinema)) {
 256                                         item = add_cinema (cinema, *existing_item);
 257                                 }
 258                         }
 259                 }
 260
 261                 if (!item) {
 262                         item = add_cinema (cinema, wxTLI_LAST);
 263                 }
 264
 265                 if (item) {
 266                         _targets->UnselectAll ();
 267                         _targets->Select (*item);
 268                 }
 269         }
 270
 271         selection_changed ();
 272 }
 273
 274
 275 shared_ptr<Cinema>
 276 ScreensPanel::cinema_for_operation () const
 277 {
 278         if (_selected_cinemas.size() == 1) {
 279                 return _selected_cinemas[0];
 280         } else if (_selected_screens.size() == 1) {
 281                 return _selected_screens[0]->cinema;
 282         }
 283
 284         return {};
 285 }
 286
 287
 288 void
 289 ScreensPanel::edit_cinema_clicked ()
 290 {
 291         auto cinema = cinema_for_operation ();
 292         if (!cinema) {
 293                 return;
 294         }
 295
 296         auto dialog = new CinemaDialog(
 297                 GetParent(), _("Edit cinema"), cinema->name, cinema->emails, cinema->notes, cinema->utc_offset_hour(), cinema->utc_offset_minute()
 298                 );
 299         ScopeGuard sg = [dialog]() { dialog->Destroy(); };
 300
 301         if (dialog->ShowModal() == wxID_OK) {
 302                 cinema->name = dialog->name();
 303                 cinema->emails = dialog->emails();
 304                 cinema->notes = dialog->notes();
 305                 cinema->set_utc_offset_hour(dialog->utc_offset_hour());
 306                 cinema->set_utc_offset_minute(dialog->utc_offset_minute());
 307                 notify_cinemas_changed();
 308                 auto item = cinema_to_item(cinema);
 309                 DCPOMATIC_ASSERT(item);
 310                 _targets->SetItemText (*item, std_to_wx(dialog->name()));
 311         }
 312 }
 313
 314
 315 void
 316 ScreensPanel::remove_cinema_clicked ()
 317 {
 318         if (_selected_cinemas.size() == 1) {
 319                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove the cinema '%s'?"), std_to_wx(_selected_cinemas[0]->name)))) {
 320                         return;
 321                 }
 322         } else {
 323                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove %d cinemas?"), int(_selected_cinemas.size())))) {
 324                         return;
 325                 }
 326         }
 327
 328         for (auto const& cinema: _selected_cinemas) {
 329                 Config::instance()->remove_cinema(cinema);
 330                 auto item = cinema_to_item(cinema);
 331                 DCPOMATIC_ASSERT(item);
 332                 _targets->DeleteItem(*item);
 333         }
 334
 335         selection_changed ();
 336 }
 337
 338
 339 void
 340 ScreensPanel::add_screen_clicked ()
 341 {
 342         auto cinema = cinema_for_operation ();
 343         if (!cinema) {
 344                 return;
 345         }
 346
 347         auto dialog = new ScreenDialog(GetParent(), _("Add Screen"));
 348         ScopeGuard sg = [dialog]() { dialog->Destroy(); };
 349
 350         if (dialog->ShowModal () != wxID_OK) {
 351                 return;
 352         }
 353
 354         for (auto screen: cinema->screens()) {
 355                 if (screen->name == dialog->name()) {
 356                         error_dialog (
 357                                 GetParent(),
 358                                 wxString::Format (
 359                                         _("You cannot add a screen called '%s' as the cinema already has a screen with this name."),
 360                                         std_to_wx(dialog->name()).data()
 361                                         )
 362                                 );
 363                         return;
 364                 }
 365         }
 366
 367         auto screen = std::make_shared<Screen>(dialog->name(), dialog->notes(), dialog->recipient(), dialog->recipient_file(), dialog->trusted_devices());
 368         cinema->add_screen (screen);
 369         notify_cinemas_changed();
 370
 371         auto id = add_screen (cinema, screen);
 372         if (id) {
 373                 _targets->Expand (id.get ());
 374         }
 375 }
 376
 377
 378 void
 379 ScreensPanel::edit_screen_clicked ()
 380 {
 381         if (_selected_screens.size() != 1) {
 382                 return;
 383         }
 384
 385         auto edit_screen = _selected_screens[0];
 386
 387         auto dialog = new ScreenDialog(
 388                 GetParent(), _("Edit screen"),
 389                 edit_screen->name,
 390                 edit_screen->notes,
 391                 edit_screen->recipient,
 392                 edit_screen->recipient_file,
 393                 edit_screen->trusted_devices
 394                 );
 395         ScopeGuard sg = [dialog]() { dialog->Destroy(); };
 396
 397         if (dialog->ShowModal() != wxID_OK) {
 398                 return;
 399         }
 400
 401         auto cinema = edit_screen->cinema;
 402         for (auto screen: cinema->screens()) {
 403                 if (screen != edit_screen && screen->name == dialog->name()) {
 404                         error_dialog (
 405                                 GetParent(),
 406                                 wxString::Format (
 407                                         _("You cannot change this screen's name to '%s' as the cinema already has a screen with this name."),
 408                                         std_to_wx(dialog->name()).data()
 409                                         )
 410                                 );
 411                         return;
 412                 }
 413         }
 414
 415         edit_screen->name = dialog->name();
 416         edit_screen->notes = dialog->notes();
 417         edit_screen->recipient = dialog->recipient();
 418         edit_screen->recipient_file = dialog->recipient_file();
 419         edit_screen->trusted_devices = dialog->trusted_devices();
 420         notify_cinemas_changed();
 421
 422         auto item = screen_to_item(edit_screen);
 423         DCPOMATIC_ASSERT (item);
 424         _targets->SetItemText (*item, std_to_wx(dialog->name()));
 425 }
 426
 427
 428 void
 429 ScreensPanel::remove_screen_clicked ()
 430 {
 431         if (_selected_screens.size() == 1) {
 432                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove the screen '%s'?"), std_to_wx(_selected_screens[0]->name)))) {
 433                         return;
 434                 }
 435         } else {
 436                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove %d screens?"), int(_selected_screens.size())))) {
 437                         return;
 438                 }
 439         }
 440
 441         for (auto const& screen: _selected_screens) {
 442                 screen->cinema->remove_screen(screen);
 443                 auto item = screen_to_item(screen);
 444                 DCPOMATIC_ASSERT(item);
 445                 _targets->DeleteItem(*item);
 446         }
 447
 448         notify_cinemas_changed();
 449 }
 450
 451
 452 vector<shared_ptr<Screen>>
 453 ScreensPanel::screens () const
 454 {
 455         vector<shared_ptr<Screen>> output;
 456         std::copy (_checked_screens.begin(), _checked_screens.end(), std::back_inserter(output));
 457         return output;
 458 }
 459
 460
 461 void
 462 ScreensPanel::selection_changed_shim (wxTreeListEvent &)
 463 {
 464         selection_changed ();
 465 }
 466
 467
 468 void
 469 ScreensPanel::selection_changed ()
 470 {
 471         if (_ignore_selection_change) {
 472                 return;
 473         }
 474
 475         wxTreeListItems selection;
 476         _targets->GetSelections (selection);
 477
 478         _selected_cinemas.clear ();
 479         _selected_screens.clear ();
 480
 481         for (size_t i = 0; i < selection.size(); ++i) {
 482                 if (auto cinema = item_to_cinema(selection[i])) {
 483                         _selected_cinemas.push_back(cinema);
 484                 }
 485                 if (auto screen = item_to_screen(selection[i])) {
 486                         _selected_screens.push_back(screen);
 487                 }
 488         }
 489
 490         setup_sensitivity ();
 491 }
 492
 493
 494 void
 495 ScreensPanel::add_cinemas ()
 496 {
 497         auto cinemas = Config::instance()->cinemas();
 498         cinemas.sort(
 499                 [this](shared_ptr<Cinema> a, shared_ptr<Cinema> b) { return compare(a->name, b->name) < 0; }
 500                 );
 501
 502         for (auto cinema: cinemas) {
 503                 add_cinema (cinema, wxTLI_LAST);
 504         }
 505 }
 506
 507
 508 void
 509 ScreensPanel::clear_and_re_add()
 510 {
 511         _targets->DeleteAllItems ();
 512
 513         _item_to_cinema.clear ();
 514         _cinema_to_item.clear ();
 515         _item_to_screen.clear ();
 516         _screen_to_item.clear ();
 517
 518         add_cinemas ();
 519 }
 520
 521
 522 void
 523 ScreensPanel::search_changed ()
 524 {
 525         clear_and_re_add();
 526
 527         _ignore_selection_change = true;
 528
 529         for (auto const& selection: _selected_cinemas) {
 530                 if (auto item = cinema_to_item(selection)) {
 531                         _targets->Select (*item);
 532                 }
 533         }
 534
 535         for (auto const& selection: _selected_screens) {
 536                 if (auto item = screen_to_item(selection)) {
 537                         _targets->Select (*item);
 538                 }
 539         }
 540
 541         _ignore_selection_change = false;
 542
 543         _ignore_check_change = true;
 544
 545         for (auto const& checked: _checked_screens) {
 546                 if (auto item = screen_to_item(checked)) {
 547                         _targets->CheckItem(*item, wxCHK_CHECKED);
 548                         setup_cinema_checked_state(*item);
 549                 }
 550         }
 551
 552         _ignore_check_change = false;
 553 }
 554
 555
 556 void
 557 ScreensPanel::set_screen_checked (wxTreeListItem item, bool checked)
 558 {
 559         auto screen = item_to_screen(item);
 560         DCPOMATIC_ASSERT(screen);
 561         if (checked) {
 562                 _checked_screens.insert(screen);
 563         } else {
 564                 _checked_screens.erase(screen);
 565         }
 566 }
 567
 568
 569 void
 570 ScreensPanel::setup_cinema_checked_state (wxTreeListItem screen)
 571 {
 572         auto cinema = _targets->GetItemParent(screen);
 573         DCPOMATIC_ASSERT (cinema.IsOk());
 574         int checked = 0;
 575         int unchecked = 0;
 576         for (auto child = _targets->GetFirstChild(cinema); child.IsOk(); child = _targets->GetNextSibling(child)) {
 577                 if (_targets->GetCheckedState(child) == wxCHK_CHECKED) {
 578                     ++checked;
 579                 } else {
 580                     ++unchecked;
 581                 }
 582         }
 583         if (checked == 0) {
 584                 _targets->CheckItem(cinema, wxCHK_UNCHECKED);
 585         } else if (unchecked == 0) {
 586                 _targets->CheckItem(cinema, wxCHK_CHECKED);
 587         } else {
 588                 _targets->CheckItem(cinema, wxCHK_UNDETERMINED);
 589         }
 590 }
 591
 592
 593 void
 594 ScreensPanel::checkbox_changed (wxTreeListEvent& ev)
 595 {
 596         if (_ignore_check_change) {
 597                 return;
 598         }
 599
 600         if (item_to_cinema(ev.GetItem())) {
 601                 /* Cinema: check/uncheck all children */
 602                 auto const checked = _targets->GetCheckedState(ev.GetItem());
 603                 for (auto child = _targets->GetFirstChild(ev.GetItem()); child.IsOk(); child = _targets->GetNextSibling(child)) {
 604                         _targets->CheckItem(child, checked);
 605                         set_screen_checked(child, checked);
 606                 }
 607         } else {
 608                 set_screen_checked(ev.GetItem(), _targets->GetCheckedState(ev.GetItem()));
 609                 setup_cinema_checked_state(ev.GetItem());
 610         }
 611
 612         ScreensChanged ();
 613 }
 614
 615
 616 shared_ptr<Cinema>
 617 ScreensPanel::item_to_cinema (wxTreeListItem item) const
 618 {
 619         auto iter = _item_to_cinema.find (item);
 620         if (iter == _item_to_cinema.end()) {
 621                 return {};
 622         }
 623
 624         return iter->second;
 625 }
 626
 627
 628 shared_ptr<Screen>
 629 ScreensPanel::item_to_screen (wxTreeListItem item) const
 630 {
 631         auto iter = _item_to_screen.find (item);
 632         if (iter == _item_to_screen.end()) {
 633                 return {};
 634         }
 635
 636         return iter->second;
 637 }
 638
 639
 640 optional<wxTreeListItem>
 641 ScreensPanel::cinema_to_item (shared_ptr<Cinema> cinema) const
 642 {
 643         auto iter = _cinema_to_item.find (cinema);
 644         if (iter == _cinema_to_item.end()) {
 645                 return {};
 646         }
 647
 648         return iter->second;
 649 }
 650
 651
 652 optional<wxTreeListItem>
 653 ScreensPanel::screen_to_item (shared_ptr<Screen> screen) const
 654 {
 655         auto iter = _screen_to_item.find (screen);
 656         if (iter == _screen_to_item.end()) {
 657                 return {};
 658         }
 659
 660         return iter->second;
 661 }
 662
 663
 664 int
 665 ScreensPanel::compare (string const& utf8_a, string const& utf8_b)
 666 {
 667         if (_collator) {
 668                 UErrorCode error = U_ZERO_ERROR;
 669                 boost::scoped_array<uint16_t> utf16_a(new uint16_t[utf8_a.size() + 1]);
 670                 u_strFromUTF8(reinterpret_cast<UChar*>(utf16_a.get()), utf8_a.size() + 1, nullptr, utf8_a.c_str(), -1, &error);
 671                 boost::scoped_array<uint16_t> utf16_b(new uint16_t[utf8_b.size() + 1]);
 672                 u_strFromUTF8(reinterpret_cast<UChar*>(utf16_b.get()), utf8_b.size() + 1, nullptr, utf8_b.c_str(), -1, &error);
 673                 return ucol_strcoll(_collator, reinterpret_cast<UChar*>(utf16_a.get()), -1, reinterpret_cast<UChar*>(utf16_b.get()), -1);
 674         } else {
 675                 return strcoll(utf8_a.c_str(), utf8_b.c_str());
 676         }
 677 }
 678
 679
 680 bool
 681 ScreensPanel::notify_cinemas_changed()
 682 {
 683         _ignore_cinemas_changed = true;
 684         ScopeGuard sg = [this]() { _ignore_cinemas_changed = false; };
 685
 686         try {
 687                 Config::instance()->changed(Config::CINEMAS);
 688         } catch (FileError& e) {
 689                 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()));
 690                 return false;
 691         }
 692
 693         return true;
 694 }
 695
 696
 697 void
 698 ScreensPanel::config_changed(Config::Property property)
 699 {
 700         if (property == Config::Property::CINEMAS && !_ignore_cinemas_changed) {
 701                 clear_and_re_add();
 702         }
 703 }
 704
 705