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 using namespace dcpomatic;
  49
  50
  51 ScreensPanel::ScreensPanel (wxWindow* parent)
  52         : wxPanel (parent, wxID_ANY)
  53 {
  54         auto sizer = new wxBoxSizer (wxVERTICAL);
  55
  56         _search = new wxSearchCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(200, search_ctrl_height()));
  57 #ifndef __WXGTK3__
  58         /* The cancel button seems to be strangely broken in GTK3; clicking on it twice sometimes works */
  59         _search->ShowCancelButton (true);
  60 #endif
  61         sizer->Add (_search, 0, wxBOTTOM, DCPOMATIC_SIZER_GAP);
  62
  63         auto targets = new wxBoxSizer (wxHORIZONTAL);
  64         _targets = new wxTreeListCtrl (this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTL_MULTIPLE | wxTL_3STATE | wxTL_NO_HEADER);
  65         _targets->AppendColumn (wxT("foo"));
  66
  67         targets->Add (_targets, 1, wxEXPAND | wxRIGHT, DCPOMATIC_SIZER_GAP);
  68
  69         add_cinemas ();
  70
  71         auto side_buttons = new wxBoxSizer (wxVERTICAL);
  72
  73         auto target_buttons = new wxBoxSizer (wxVERTICAL);
  74
  75         _add_cinema = new Button (this, _("Add Cinema..."));
  76         target_buttons->Add (_add_cinema, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  77         _edit_cinema = new Button (this, _("Edit Cinema..."));
  78         target_buttons->Add (_edit_cinema, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  79         _remove_cinema = new Button (this, _("Remove Cinema"));
  80         target_buttons->Add (_remove_cinema, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  81         _add_screen = new Button (this, _("Add Screen..."));
  82         target_buttons->Add (_add_screen, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  83         _edit_screen = new Button (this, _("Edit Screen..."));
  84         target_buttons->Add (_edit_screen, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  85         _remove_screen = new Button (this, _("Remove Screen"));
  86         target_buttons->Add (_remove_screen, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  87
  88         side_buttons->Add (target_buttons, 0, 0);
  89
  90         auto check_buttons = new wxBoxSizer (wxVERTICAL);
  91
  92         _check_all = new Button (this, _("Check all"));
  93         check_buttons->Add (_check_all, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  94         _uncheck_all = new Button (this, _("Uncheck all"));
  95         check_buttons->Add (_uncheck_all, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_BUTTON_STACK_GAP);
  96
  97         side_buttons->Add (check_buttons, 1, wxEXPAND | wxTOP, DCPOMATIC_BUTTON_STACK_GAP * 8);
  98
  99         targets->Add (side_buttons, 0, 0);
 100
 101         sizer->Add (targets, 1, wxEXPAND);
 102
 103         _search->Bind        (wxEVT_TEXT, boost::bind (&ScreensPanel::search_changed, this));
 104         _targets->Bind       (wxEVT_TREELIST_SELECTION_CHANGED, &ScreensPanel::selection_changed_shim, this);
 105         _targets->Bind       (wxEVT_TREELIST_ITEM_CHECKED, &ScreensPanel::checkbox_changed, 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         UErrorCode status = U_ZERO_ERROR;
 121         _collator = ucol_open(nullptr, &status);
 122         if (_collator) {
 123                 ucol_setAttribute(_collator, UCOL_NORMALIZATION_MODE, UCOL_ON, &status);
 124                 ucol_setAttribute(_collator, UCOL_STRENGTH, UCOL_PRIMARY, &status);
 125                 ucol_setAttribute(_collator, UCOL_ALTERNATE_HANDLING, UCOL_SHIFTED, &status);
 126         }
 127 }
 128
 129
 130 ScreensPanel::~ScreensPanel ()
 131 {
 132         _targets->Unbind (wxEVT_TREELIST_SELECTION_CHANGED, &ScreensPanel::selection_changed_shim, this);
 133         _targets->Unbind (wxEVT_TREELIST_ITEM_CHECKED, &ScreensPanel::checkbox_changed, this);
 134
 135         if (_collator) {
 136                 ucol_close (_collator);
 137         }
 138 }
 139
 140
 141 void
 142 ScreensPanel::check_all ()
 143 {
 144         for (auto cinema = _targets->GetFirstChild(_targets->GetRootItem()); cinema.IsOk();  cinema = _targets->GetNextSibling(cinema)) {
 145                 _targets->CheckItem(cinema, wxCHK_CHECKED);
 146                 for (auto screen = _targets->GetFirstChild(cinema); screen.IsOk(); screen = _targets->GetNextSibling(screen)) {
 147                         _targets->CheckItem(screen, wxCHK_CHECKED);
 148                         set_screen_checked(screen, true);
 149                 }
 150         }
 151 }
 152
 153
 154 void
 155 ScreensPanel::uncheck_all ()
 156 {
 157         for (auto cinema = _targets->GetFirstChild(_targets->GetRootItem()); cinema.IsOk();  cinema = _targets->GetNextSibling(cinema)) {
 158                 _targets->CheckItem(cinema, wxCHK_UNCHECKED);
 159                 for (auto screen = _targets->GetFirstChild(cinema); screen.IsOk(); screen = _targets->GetNextSibling(screen)) {
 160                         _targets->CheckItem(screen, wxCHK_UNCHECKED);
 161                         set_screen_checked(screen, false);
 162                 }
 163         }
 164 }
 165
 166
 167 void
 168 ScreensPanel::setup_sensitivity ()
 169 {
 170         bool const sc = _selected_cinemas.size() == 1;
 171         bool const ss = _selected_screens.size() == 1;
 172
 173         _edit_cinema->Enable (sc || ss);
 174         _remove_cinema->Enable (_selected_cinemas.size() >= 1);
 175
 176         _add_screen->Enable (sc || ss);
 177         _edit_screen->Enable (ss);
 178         _remove_screen->Enable (_selected_screens.size() >= 1);
 179 }
 180
 181
 182 optional<wxTreeListItem>
 183 ScreensPanel::add_cinema (shared_ptr<Cinema> cinema, wxTreeListItem previous)
 184 {
 185         auto search = wx_to_std (_search->GetValue ());
 186         transform (search.begin(), search.end(), search.begin(), ::tolower);
 187
 188         if (!search.empty ()) {
 189                 auto name = cinema->name;
 190                 transform (name.begin(), name.end(), name.begin(), ::tolower);
 191                 if (name.find (search) == string::npos) {
 192                         return {};
 193                 }
 194         }
 195
 196         auto id = _targets->InsertItem(_targets->GetRootItem(), previous, std_to_wx(cinema->name));
 197
 198         _item_to_cinema[id] = cinema;
 199         _cinema_to_item[cinema] = id;
 200
 201         for (auto screen: cinema->screens()) {
 202                 add_screen (cinema, screen);
 203         }
 204
 205         return id;
 206 }
 207
 208
 209 optional<wxTreeListItem>
 210 ScreensPanel::add_screen (shared_ptr<Cinema> cinema, shared_ptr<Screen> screen)
 211 {
 212         auto item = cinema_to_item(cinema);
 213         if (!item) {
 214                 return {};
 215         }
 216
 217         auto id = _targets->AppendItem(*item, std_to_wx(screen->name));
 218
 219         _item_to_screen[id] = screen;
 220         _screen_to_item[screen] = id;
 221
 222         return item;
 223 }
 224
 225
 226 void
 227 ScreensPanel::add_cinema_clicked ()
 228 {
 229         auto dialog = new CinemaDialog (GetParent(), _("Add Cinema"));
 230         ScopeGuard sg = [dialog]() { dialog->Destroy(); };
 231
 232         if (dialog->ShowModal() == wxID_OK) {
 233                 auto cinema = make_shared<Cinema>(dialog->name(), dialog->emails(), dialog->notes(), dialog->utc_offset_hour(), dialog->utc_offset_minute());
 234
 235                 auto cinemas = Config::instance()->cinemas();
 236                 cinemas.sort(
 237                         [this](shared_ptr<Cinema> a, shared_ptr<Cinema> b) { return compare(a->name, b->name) < 0; }
 238                         );
 239
 240                 try {
 241                         Config::instance()->add_cinema(cinema);
 242                 } catch (FileError& e) {
 243                         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()));
 244                         return;
 245                 }
 246
 247                 optional<wxTreeListItem> item;
 248                 for (auto existing_cinema: cinemas) {
 249                         if (!item && compare(dialog->name(), existing_cinema->name) < 0) {
 250                                 if (auto existing_item = cinema_to_item(existing_cinema)) {
 251                                         item = add_cinema (cinema, *existing_item);
 252                                 }
 253                         }
 254                 }
 255
 256                 if (!item) {
 257                         item = add_cinema (cinema, wxTLI_LAST);
 258                 }
 259
 260                 if (item) {
 261                         _targets->UnselectAll ();
 262                         _targets->Select (*item);
 263                 }
 264         }
 265
 266         selection_changed ();
 267 }
 268
 269
 270 shared_ptr<Cinema>
 271 ScreensPanel::cinema_for_operation () const
 272 {
 273         if (_selected_cinemas.size() == 1) {
 274                 return _selected_cinemas[0];
 275         } else if (_selected_screens.size() == 1) {
 276                 return _selected_screens[0]->cinema;
 277         }
 278
 279         return {};
 280 }
 281
 282
 283 void
 284 ScreensPanel::edit_cinema_clicked ()
 285 {
 286         auto cinema = cinema_for_operation ();
 287         if (!cinema) {
 288                 return;
 289         }
 290
 291         auto dialog = new CinemaDialog(
 292                 GetParent(), _("Edit cinema"), cinema->name, cinema->emails, cinema->notes, cinema->utc_offset_hour(), cinema->utc_offset_minute()
 293                 );
 294         ScopeGuard sg = [dialog]() { dialog->Destroy(); };
 295
 296         if (dialog->ShowModal() == wxID_OK) {
 297                 cinema->name = dialog->name();
 298                 cinema->emails = dialog->emails();
 299                 cinema->notes = dialog->notes();
 300                 cinema->set_utc_offset_hour(dialog->utc_offset_hour());
 301                 cinema->set_utc_offset_minute(dialog->utc_offset_minute());
 302                 notify_cinemas_changed();
 303                 auto item = cinema_to_item(cinema);
 304                 DCPOMATIC_ASSERT(item);
 305                 _targets->SetItemText (*item, std_to_wx(dialog->name()));
 306         }
 307 }
 308
 309
 310 void
 311 ScreensPanel::remove_cinema_clicked ()
 312 {
 313         if (_selected_cinemas.size() == 1) {
 314                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove the cinema '%s'?"), std_to_wx(_selected_cinemas[0]->name)))) {
 315                         return;
 316                 }
 317         } else {
 318                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove %d cinemas?"), int(_selected_cinemas.size())))) {
 319                         return;
 320                 }
 321         }
 322
 323         for (auto const& cinema: _selected_cinemas) {
 324                 Config::instance()->remove_cinema(cinema);
 325                 auto item = cinema_to_item(cinema);
 326                 DCPOMATIC_ASSERT(item);
 327                 _targets->DeleteItem(*item);
 328         }
 329
 330         selection_changed ();
 331 }
 332
 333
 334 void
 335 ScreensPanel::add_screen_clicked ()
 336 {
 337         auto cinema = cinema_for_operation ();
 338         if (!cinema) {
 339                 return;
 340         }
 341
 342         auto dialog = new ScreenDialog(GetParent(), _("Add Screen"));
 343         ScopeGuard sg = [dialog]() { dialog->Destroy(); };
 344
 345         if (dialog->ShowModal () != wxID_OK) {
 346                 return;
 347         }
 348
 349         for (auto screen: cinema->screens()) {
 350                 if (screen->name == dialog->name()) {
 351                         error_dialog (
 352                                 GetParent(),
 353                                 wxString::Format (
 354                                         _("You cannot add a screen called '%s' as the cinema already has a screen with this name."),
 355                                         std_to_wx(dialog->name()).data()
 356                                         )
 357                                 );
 358                         return;
 359                 }
 360         }
 361
 362         auto screen = std::make_shared<Screen>(dialog->name(), dialog->notes(), dialog->recipient(), dialog->recipient_file(), dialog->trusted_devices());
 363         cinema->add_screen (screen);
 364         notify_cinemas_changed();
 365
 366         auto id = add_screen (cinema, screen);
 367         if (id) {
 368                 _targets->Expand (id.get ());
 369         }
 370 }
 371
 372
 373 void
 374 ScreensPanel::edit_screen_clicked ()
 375 {
 376         if (_selected_screens.size() != 1) {
 377                 return;
 378         }
 379
 380         auto edit_screen = _selected_screens[0];
 381
 382         auto dialog = new ScreenDialog(
 383                 GetParent(), _("Edit screen"),
 384                 edit_screen->name,
 385                 edit_screen->notes,
 386                 edit_screen->recipient,
 387                 edit_screen->recipient_file,
 388                 edit_screen->trusted_devices
 389                 );
 390         ScopeGuard sg = [dialog]() { dialog->Destroy(); };
 391
 392         if (dialog->ShowModal() != wxID_OK) {
 393                 return;
 394         }
 395
 396         auto cinema = edit_screen->cinema;
 397         for (auto screen: cinema->screens()) {
 398                 if (screen != edit_screen && screen->name == dialog->name()) {
 399                         error_dialog (
 400                                 GetParent(),
 401                                 wxString::Format (
 402                                         _("You cannot change this screen's name to '%s' as the cinema already has a screen with this name."),
 403                                         std_to_wx(dialog->name()).data()
 404                                         )
 405                                 );
 406                         return;
 407                 }
 408         }
 409
 410         edit_screen->name = dialog->name();
 411         edit_screen->notes = dialog->notes();
 412         edit_screen->recipient = dialog->recipient();
 413         edit_screen->recipient_file = dialog->recipient_file();
 414         edit_screen->trusted_devices = dialog->trusted_devices();
 415         notify_cinemas_changed();
 416
 417         auto item = screen_to_item(edit_screen);
 418         DCPOMATIC_ASSERT (item);
 419         _targets->SetItemText (*item, std_to_wx(dialog->name()));
 420 }
 421
 422
 423 void
 424 ScreensPanel::remove_screen_clicked ()
 425 {
 426         if (_selected_screens.size() == 1) {
 427                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove the screen '%s'?"), std_to_wx(_selected_screens[0]->name)))) {
 428                         return;
 429                 }
 430         } else {
 431                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove %d screens?"), int(_selected_screens.size())))) {
 432                         return;
 433                 }
 434         }
 435
 436         for (auto const& screen: _selected_screens) {
 437                 screen->cinema->remove_screen(screen);
 438                 auto item = screen_to_item(screen);
 439                 DCPOMATIC_ASSERT(item);
 440                 _targets->DeleteItem(*item);
 441         }
 442
 443         notify_cinemas_changed();
 444 }
 445
 446
 447 vector<shared_ptr<Screen>>
 448 ScreensPanel::screens () const
 449 {
 450         vector<shared_ptr<Screen>> output;
 451         std::copy (_checked_screens.begin(), _checked_screens.end(), std::back_inserter(output));
 452         return output;
 453 }
 454
 455
 456 void
 457 ScreensPanel::selection_changed_shim (wxTreeListEvent &)
 458 {
 459         selection_changed ();
 460 }
 461
 462
 463 void
 464 ScreensPanel::selection_changed ()
 465 {
 466         if (_ignore_selection_change) {
 467                 return;
 468         }
 469
 470         wxTreeListItems selection;
 471         _targets->GetSelections (selection);
 472
 473         _selected_cinemas.clear ();
 474         _selected_screens.clear ();
 475
 476         for (size_t i = 0; i < selection.size(); ++i) {
 477                 if (auto cinema = item_to_cinema(selection[i])) {
 478                         _selected_cinemas.push_back(cinema);
 479                 }
 480                 if (auto screen = item_to_screen(selection[i])) {
 481                         _selected_screens.push_back(screen);
 482                 }
 483         }
 484
 485         setup_sensitivity ();
 486 }
 487
 488
 489 void
 490 ScreensPanel::add_cinemas ()
 491 {
 492         auto cinemas = Config::instance()->cinemas();
 493         cinemas.sort(
 494                 [this](shared_ptr<Cinema> a, shared_ptr<Cinema> b) { return compare(a->name, b->name) < 0; }
 495                 );
 496
 497         for (auto cinema: cinemas) {
 498                 add_cinema (cinema, wxTLI_LAST);
 499         }
 500 }
 501
 502
 503 void
 504 ScreensPanel::search_changed ()
 505 {
 506         _targets->DeleteAllItems ();
 507
 508         _item_to_cinema.clear ();
 509         _cinema_to_item.clear ();
 510         _item_to_screen.clear ();
 511         _screen_to_item.clear ();
 512
 513         add_cinemas ();
 514
 515         _ignore_selection_change = true;
 516
 517         for (auto const& selection: _selected_cinemas) {
 518                 if (auto item = cinema_to_item(selection)) {
 519                         _targets->Select (*item);
 520                 }
 521         }
 522
 523         for (auto const& selection: _selected_screens) {
 524                 if (auto item = screen_to_item(selection)) {
 525                         _targets->Select (*item);
 526                 }
 527         }
 528
 529         _ignore_selection_change = false;
 530
 531         _ignore_check_change = true;
 532
 533         for (auto const& checked: _checked_screens) {
 534                 if (auto item = screen_to_item(checked)) {
 535                         _targets->CheckItem(*item, wxCHK_CHECKED);
 536                         setup_cinema_checked_state(*item);
 537                 }
 538         }
 539
 540         _ignore_check_change = false;
 541 }
 542
 543
 544 void
 545 ScreensPanel::set_screen_checked (wxTreeListItem item, bool checked)
 546 {
 547         auto screen = item_to_screen(item);
 548         DCPOMATIC_ASSERT(screen);
 549         if (checked) {
 550                 _checked_screens.insert(screen);
 551         } else {
 552                 _checked_screens.erase(screen);
 553         }
 554 }
 555
 556
 557 void
 558 ScreensPanel::setup_cinema_checked_state (wxTreeListItem screen)
 559 {
 560         auto cinema = _targets->GetItemParent(screen);
 561         DCPOMATIC_ASSERT (cinema.IsOk());
 562         int checked = 0;
 563         int unchecked = 0;
 564         for (auto child = _targets->GetFirstChild(cinema); child.IsOk(); child = _targets->GetNextSibling(child)) {
 565                 if (_targets->GetCheckedState(child) == wxCHK_CHECKED) {
 566                     ++checked;
 567                 } else {
 568                     ++unchecked;
 569                 }
 570         }
 571         if (checked == 0) {
 572                 _targets->CheckItem(cinema, wxCHK_UNCHECKED);
 573         } else if (unchecked == 0) {
 574                 _targets->CheckItem(cinema, wxCHK_CHECKED);
 575         } else {
 576                 _targets->CheckItem(cinema, wxCHK_UNDETERMINED);
 577         }
 578 }
 579
 580
 581 void
 582 ScreensPanel::checkbox_changed (wxTreeListEvent& ev)
 583 {
 584         if (_ignore_check_change) {
 585                 return;
 586         }
 587
 588         if (item_to_cinema(ev.GetItem())) {
 589                 /* Cinema: check/uncheck all children */
 590                 auto const checked = _targets->GetCheckedState(ev.GetItem());
 591                 for (auto child = _targets->GetFirstChild(ev.GetItem()); child.IsOk(); child = _targets->GetNextSibling(child)) {
 592                         _targets->CheckItem(child, checked);
 593                         set_screen_checked(child, checked);
 594                 }
 595         } else {
 596                 set_screen_checked(ev.GetItem(), _targets->GetCheckedState(ev.GetItem()));
 597                 setup_cinema_checked_state(ev.GetItem());
 598         }
 599
 600         ScreensChanged ();
 601 }
 602
 603
 604 shared_ptr<Cinema>
 605 ScreensPanel::item_to_cinema (wxTreeListItem item) const
 606 {
 607         auto iter = _item_to_cinema.find (item);
 608         if (iter == _item_to_cinema.end()) {
 609                 return {};
 610         }
 611
 612         return iter->second;
 613 }
 614
 615
 616 shared_ptr<Screen>
 617 ScreensPanel::item_to_screen (wxTreeListItem item) const
 618 {
 619         auto iter = _item_to_screen.find (item);
 620         if (iter == _item_to_screen.end()) {
 621                 return {};
 622         }
 623
 624         return iter->second;
 625 }
 626
 627
 628 optional<wxTreeListItem>
 629 ScreensPanel::cinema_to_item (shared_ptr<Cinema> cinema) const
 630 {
 631         auto iter = _cinema_to_item.find (cinema);
 632         if (iter == _cinema_to_item.end()) {
 633                 return {};
 634         }
 635
 636         return iter->second;
 637 }
 638
 639
 640 optional<wxTreeListItem>
 641 ScreensPanel::screen_to_item (shared_ptr<Screen> screen) const
 642 {
 643         auto iter = _screen_to_item.find (screen);
 644         if (iter == _screen_to_item.end()) {
 645                 return {};
 646         }
 647
 648         return iter->second;
 649 }
 650
 651
 652 int
 653 ScreensPanel::compare (string const& utf8_a, string const& utf8_b)
 654 {
 655         if (_collator) {
 656                 UErrorCode error = U_ZERO_ERROR;
 657                 boost::scoped_array<uint16_t> utf16_a(new uint16_t[utf8_a.size() + 1]);
 658                 u_strFromUTF8(reinterpret_cast<UChar*>(utf16_a.get()), utf8_a.size() + 1, nullptr, utf8_a.c_str(), -1, &error);
 659                 boost::scoped_array<uint16_t> utf16_b(new uint16_t[utf8_b.size() + 1]);
 660                 u_strFromUTF8(reinterpret_cast<UChar*>(utf16_b.get()), utf8_b.size() + 1, nullptr, utf8_b.c_str(), -1, &error);
 661                 return ucol_strcoll(_collator, reinterpret_cast<UChar*>(utf16_a.get()), -1, reinterpret_cast<UChar*>(utf16_b.get()), -1);
 662         } else {
 663                 return strcoll(utf8_a.c_str(), utf8_b.c_str());
 664         }
 665 }
 666
 667
 668 bool
 669 ScreensPanel::notify_cinemas_changed()
 670 {
 671         try {
 672                 Config::instance()->changed(Config::CINEMAS);
 673         } catch (FileError& e) {
 674                 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()));
 675                 return false;
 676         }
 677
 678         return true;
 679 }
 680
 681