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/screen.h"
  30 #include "lib/timer.h"
  31 #include <unicode/putil.h>
  32 #include <unicode/ucol.h>
  33 #include <unicode/uiter.h>
  34 #include <unicode/utypes.h>
  35 #include <unicode/ustring.h>
  36
  37
  38 using std::cout;
  39 using std::make_pair;
  40 using std::make_shared;
  41 using std::map;
  42 using std::pair;
  43 using std::shared_ptr;
  44 using std::string;
  45 using std::vector;
  46 using boost::optional;
  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
 106         _add_cinema->Bind    (wxEVT_BUTTON, boost::bind (&ScreensPanel::add_cinema_clicked, this));
 107         _edit_cinema->Bind   (wxEVT_BUTTON, boost::bind (&ScreensPanel::edit_cinema_clicked, this));
 108         _remove_cinema->Bind (wxEVT_BUTTON, boost::bind (&ScreensPanel::remove_cinema_clicked, this));
 109
 110         _add_screen->Bind    (wxEVT_BUTTON, boost::bind (&ScreensPanel::add_screen_clicked, this));
 111         _edit_screen->Bind   (wxEVT_BUTTON, boost::bind (&ScreensPanel::edit_screen_clicked, this));
 112         _remove_screen->Bind (wxEVT_BUTTON, boost::bind (&ScreensPanel::remove_screen_clicked, this));
 113
 114         _check_all->Bind     (wxEVT_BUTTON, boost::bind(&ScreensPanel::check_all, this));
 115         _uncheck_all->Bind     (wxEVT_BUTTON, boost::bind(&ScreensPanel::uncheck_all, this));
 116
 117         SetSizer (sizer);
 118
 119         UErrorCode status = U_ZERO_ERROR;
 120         _collator = ucol_open(nullptr, &status);
 121         if (_collator) {
 122                 ucol_setAttribute(_collator, UCOL_NORMALIZATION_MODE, UCOL_ON, &status);
 123                 ucol_setAttribute(_collator, UCOL_STRENGTH, UCOL_PRIMARY, &status);
 124                 ucol_setAttribute(_collator, UCOL_ALTERNATE_HANDLING, UCOL_SHIFTED, &status);
 125         }
 126 }
 127
 128
 129 ScreensPanel::~ScreensPanel ()
 130 {
 131         _targets->Unbind (wxEVT_TREELIST_SELECTION_CHANGED, &ScreensPanel::selection_changed_shim, this);
 132         _targets->Unbind (wxEVT_TREELIST_ITEM_CHECKED, &ScreensPanel::checkbox_changed, this);
 133
 134         if (_collator) {
 135                 ucol_close (_collator);
 136         }
 137 }
 138
 139
 140 void
 141 ScreensPanel::check_all ()
 142 {
 143         for (auto cinema = _targets->GetFirstChild(_targets->GetRootItem()); cinema.IsOk();  cinema = _targets->GetNextSibling(cinema)) {
 144                 _targets->CheckItem(cinema, wxCHK_CHECKED);
 145                 for (auto screen = _targets->GetFirstChild(cinema); screen.IsOk(); screen = _targets->GetNextSibling(screen)) {
 146                         _targets->CheckItem(screen, wxCHK_CHECKED);
 147                         set_screen_checked(screen, true);
 148                 }
 149         }
 150 }
 151
 152
 153 void
 154 ScreensPanel::uncheck_all ()
 155 {
 156         for (auto cinema = _targets->GetFirstChild(_targets->GetRootItem()); cinema.IsOk();  cinema = _targets->GetNextSibling(cinema)) {
 157                 _targets->CheckItem(cinema, wxCHK_UNCHECKED);
 158                 for (auto screen = _targets->GetFirstChild(cinema); screen.IsOk(); screen = _targets->GetNextSibling(screen)) {
 159                         _targets->CheckItem(screen, wxCHK_UNCHECKED);
 160                         set_screen_checked(screen, false);
 161                 }
 162         }
 163 }
 164
 165
 166 void
 167 ScreensPanel::setup_sensitivity ()
 168 {
 169         bool const sc = _selected_cinemas.size() == 1;
 170         bool const ss = _selected_screens.size() == 1;
 171
 172         _edit_cinema->Enable (sc || ss);
 173         _remove_cinema->Enable (_selected_cinemas.size() >= 1);
 174
 175         _add_screen->Enable (sc || ss);
 176         _edit_screen->Enable (ss);
 177         _remove_screen->Enable (_selected_screens.size() >= 1);
 178 }
 179
 180
 181 optional<wxTreeListItem>
 182 ScreensPanel::add_cinema (shared_ptr<Cinema> cinema, wxTreeListItem previous)
 183 {
 184         auto search = wx_to_std (_search->GetValue ());
 185         transform (search.begin(), search.end(), search.begin(), ::tolower);
 186
 187         if (!search.empty ()) {
 188                 auto name = cinema->name;
 189                 transform (name.begin(), name.end(), name.begin(), ::tolower);
 190                 if (name.find (search) == string::npos) {
 191                         return {};
 192                 }
 193         }
 194
 195         auto id = _targets->InsertItem(_targets->GetRootItem(), previous, std_to_wx(cinema->name));
 196
 197         _item_to_cinema[id] = cinema;
 198         _cinema_to_item[cinema] = id;
 199
 200         for (auto screen: cinema->screens()) {
 201                 add_screen (cinema, screen);
 202         }
 203
 204         return id;
 205 }
 206
 207
 208 optional<wxTreeListItem>
 209 ScreensPanel::add_screen (shared_ptr<Cinema> cinema, shared_ptr<Screen> screen)
 210 {
 211         auto item = cinema_to_item(cinema);
 212         if (!item) {
 213                 return {};
 214         }
 215
 216         auto id = _targets->AppendItem(*item, std_to_wx(screen->name));
 217
 218         _item_to_screen[id] = screen;
 219         _screen_to_item[screen] = id;
 220
 221         return item;
 222 }
 223
 224
 225 void
 226 ScreensPanel::add_cinema_clicked ()
 227 {
 228         auto d = new CinemaDialog (GetParent(), _("Add Cinema"));
 229         if (d->ShowModal () == wxID_OK) {
 230                 auto cinema = make_shared<Cinema>(d->name(), d->emails(), d->notes(), d->utc_offset_hour(), d->utc_offset_minute());
 231
 232                 auto cinemas = Config::instance()->cinemas();
 233                 cinemas.sort(
 234                         [this](shared_ptr<Cinema> a, shared_ptr<Cinema> b) { return compare(a->name, b->name) < 0; }
 235                         );
 236
 237                 optional<wxTreeListItem> item;
 238                 for (auto existing_cinema: cinemas) {
 239                         if (!item && compare(d->name(), existing_cinema->name) < 0) {
 240                                 if (auto existing_item = cinema_to_item(existing_cinema)) {
 241                                         item = add_cinema (cinema, *existing_item);
 242                                 }
 243                         }
 244                 }
 245
 246                 if (!item) {
 247                         item = add_cinema (cinema, wxTLI_LAST);
 248                 }
 249
 250                 if (item) {
 251                         _targets->UnselectAll ();
 252                         _targets->Select (*item);
 253                 }
 254
 255                 Config::instance()->add_cinema (cinema);
 256         }
 257
 258         d->Destroy ();
 259 }
 260
 261
 262 shared_ptr<Cinema>
 263 ScreensPanel::cinema_for_operation () const
 264 {
 265         if (_selected_cinemas.size() == 1) {
 266                 return _selected_cinemas[0];
 267         } else if (_selected_screens.size() == 1) {
 268                 return _selected_screens[0]->cinema;
 269         }
 270
 271         return {};
 272 }
 273
 274
 275 void
 276 ScreensPanel::edit_cinema_clicked ()
 277 {
 278         auto cinema = cinema_for_operation ();
 279         if (!cinema) {
 280                 return;
 281         }
 282
 283         auto d = new CinemaDialog (
 284                 GetParent(), _("Edit cinema"), cinema->name, cinema->emails, cinema->notes, cinema->utc_offset_hour(), cinema->utc_offset_minute()
 285                 );
 286
 287         if (d->ShowModal() == wxID_OK) {
 288                 cinema->name = d->name();
 289                 cinema->emails = d->emails();
 290                 cinema->notes = d->notes();
 291                 cinema->set_utc_offset_hour(d->utc_offset_hour());
 292                 cinema->set_utc_offset_minute(d->utc_offset_minute());
 293                 auto item = cinema_to_item(cinema);
 294                 DCPOMATIC_ASSERT(item);
 295                 _targets->SetItemText (*item, std_to_wx(d->name()));
 296                 Config::instance()->changed (Config::CINEMAS);
 297         }
 298
 299         d->Destroy ();
 300 }
 301
 302
 303 void
 304 ScreensPanel::remove_cinema_clicked ()
 305 {
 306         if (_selected_cinemas.size() == 1) {
 307                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove the cinema '%s'?"), std_to_wx(_selected_cinemas[0]->name)))) {
 308                         return;
 309                 }
 310         } else {
 311                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove %d cinemas?"), int(_selected_cinemas.size())))) {
 312                         return;
 313                 }
 314         }
 315
 316         for (auto const& cinema: _selected_cinemas) {
 317                 Config::instance()->remove_cinema(cinema);
 318                 auto item = cinema_to_item(cinema);
 319                 DCPOMATIC_ASSERT(item);
 320                 _targets->DeleteItem(*item);
 321         }
 322
 323         selection_changed ();
 324 }
 325
 326
 327 void
 328 ScreensPanel::add_screen_clicked ()
 329 {
 330         auto cinema = cinema_for_operation ();
 331         if (!cinema) {
 332                 return;
 333         }
 334
 335         auto d = new ScreenDialog (GetParent(), _("Add Screen"));
 336         if (d->ShowModal () != wxID_OK) {
 337                 d->Destroy ();
 338                 return;
 339         }
 340
 341         for (auto screen: cinema->screens()) {
 342                 if (screen->name == d->name()) {
 343                         error_dialog (
 344                                 GetParent(),
 345                                 wxString::Format (
 346                                         _("You cannot add a screen called '%s' as the cinema already has a screen with this name."),
 347                                         std_to_wx(d->name()).data()
 348                                         )
 349                                 );
 350                         return;
 351                 }
 352         }
 353
 354         auto screen = std::make_shared<Screen>(d->name(), d->notes(), d->recipient(), d->recipient_file(), d->trusted_devices());
 355         cinema->add_screen (screen);
 356         auto id = add_screen (cinema, screen);
 357         if (id) {
 358                 _targets->Expand (id.get ());
 359         }
 360
 361         Config::instance()->changed (Config::CINEMAS);
 362
 363         d->Destroy ();
 364 }
 365
 366
 367 void
 368 ScreensPanel::edit_screen_clicked ()
 369 {
 370         if (_selected_screens.size() != 1) {
 371                 return;
 372         }
 373
 374         auto edit_screen = _selected_screens[0];
 375
 376         auto d = new ScreenDialog (
 377                 GetParent(), _("Edit screen"),
 378                 edit_screen->name,
 379                 edit_screen->notes,
 380                 edit_screen->recipient,
 381                 edit_screen->recipient_file,
 382                 edit_screen->trusted_devices
 383                 );
 384
 385         if (d->ShowModal() != wxID_OK) {
 386                 d->Destroy ();
 387                 return;
 388         }
 389
 390         auto cinema = edit_screen->cinema;
 391         for (auto screen: cinema->screens()) {
 392                 if (screen != edit_screen && screen->name == d->name()) {
 393                         error_dialog (
 394                                 GetParent(),
 395                                 wxString::Format (
 396                                         _("You cannot change this screen's name to '%s' as the cinema already has a screen with this name."),
 397                                         std_to_wx(d->name()).data()
 398                                         )
 399                                 );
 400                         return;
 401                 }
 402         }
 403
 404         edit_screen->name = d->name();
 405         edit_screen->notes = d->notes();
 406         edit_screen->recipient = d->recipient();
 407         edit_screen->recipient_file = d->recipient_file();
 408         edit_screen->trusted_devices = d->trusted_devices();
 409         auto item = screen_to_item(edit_screen);
 410         DCPOMATIC_ASSERT (item);
 411         _targets->SetItemText (*item, std_to_wx(d->name()));
 412         Config::instance()->changed (Config::CINEMAS);
 413
 414         d->Destroy ();
 415 }
 416
 417
 418 void
 419 ScreensPanel::remove_screen_clicked ()
 420 {
 421         if (_selected_screens.size() == 1) {
 422                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove the screen '%s'?"), std_to_wx(_selected_screens[0]->name)))) {
 423                         return;
 424                 }
 425         } else {
 426                 if (!confirm_dialog(this, wxString::Format(_("Are you sure you want to remove %d screens?"), int(_selected_screens.size())))) {
 427                         return;
 428                 }
 429         }
 430
 431         for (auto const& screen: _selected_screens) {
 432                 screen->cinema->remove_screen(screen);
 433                 auto item = screen_to_item(screen);
 434                 DCPOMATIC_ASSERT(item);
 435                 _targets->DeleteItem(*item);
 436         }
 437
 438         Config::instance()->changed (Config::CINEMAS);
 439 }
 440
 441
 442 vector<shared_ptr<Screen>>
 443 ScreensPanel::screens () const
 444 {
 445         vector<shared_ptr<Screen>> output;
 446         std::copy (_checked_screens.begin(), _checked_screens.end(), std::back_inserter(output));
 447         return output;
 448 }
 449
 450
 451 void
 452 ScreensPanel::selection_changed_shim (wxTreeListEvent &)
 453 {
 454         selection_changed ();
 455 }
 456
 457
 458 void
 459 ScreensPanel::selection_changed ()
 460 {
 461         if (_ignore_selection_change) {
 462                 return;
 463         }
 464
 465         wxTreeListItems selection;
 466         _targets->GetSelections (selection);
 467
 468         _selected_cinemas.clear ();
 469         _selected_screens.clear ();
 470
 471         for (size_t i = 0; i < selection.size(); ++i) {
 472                 if (auto cinema = item_to_cinema(selection[i])) {
 473                         _selected_cinemas.push_back(cinema);
 474                 }
 475                 if (auto screen = item_to_screen(selection[i])) {
 476                         _selected_screens.push_back(screen);
 477                 }
 478         }
 479
 480         setup_sensitivity ();
 481 }
 482
 483
 484 void
 485 ScreensPanel::add_cinemas ()
 486 {
 487         auto cinemas = Config::instance()->cinemas();
 488         cinemas.sort(
 489                 [this](shared_ptr<Cinema> a, shared_ptr<Cinema> b) { return compare(a->name, b->name) < 0; }
 490                 );
 491
 492         for (auto cinema: cinemas) {
 493                 add_cinema (cinema, wxTLI_LAST);
 494         }
 495 }
 496
 497
 498 void
 499 ScreensPanel::search_changed ()
 500 {
 501         _targets->DeleteAllItems ();
 502
 503         _item_to_cinema.clear ();
 504         _cinema_to_item.clear ();
 505         _item_to_screen.clear ();
 506         _screen_to_item.clear ();
 507
 508         add_cinemas ();
 509
 510         _ignore_selection_change = true;
 511
 512         for (auto const& selection: _selected_cinemas) {
 513                 if (auto item = cinema_to_item(selection)) {
 514                         _targets->Select (*item);
 515                 }
 516         }
 517
 518         for (auto const& selection: _selected_screens) {
 519                 if (auto item = screen_to_item(selection)) {
 520                         _targets->Select (*item);
 521                 }
 522         }
 523
 524         _ignore_selection_change = false;
 525
 526         _ignore_check_change = true;
 527
 528         for (auto const& checked: _checked_screens) {
 529                 if (auto item = screen_to_item(checked)) {
 530                         _targets->CheckItem(*item, wxCHK_CHECKED);
 531                         setup_cinema_checked_state(*item);
 532                 }
 533         }
 534
 535         _ignore_check_change = false;
 536 }
 537
 538
 539 void
 540 ScreensPanel::set_screen_checked (wxTreeListItem item, bool checked)
 541 {
 542         auto screen = item_to_screen(item);
 543         DCPOMATIC_ASSERT(screen);
 544         if (checked) {
 545                 _checked_screens.insert(screen);
 546         } else {
 547                 _checked_screens.erase(screen);
 548         }
 549 }
 550
 551
 552 void
 553 ScreensPanel::setup_cinema_checked_state (wxTreeListItem screen)
 554 {
 555         auto cinema = _targets->GetItemParent(screen);
 556         DCPOMATIC_ASSERT (cinema.IsOk());
 557         int checked = 0;
 558         int unchecked = 0;
 559         for (auto child = _targets->GetFirstChild(cinema); child.IsOk(); child = _targets->GetNextSibling(child)) {
 560                 if (_targets->GetCheckedState(child) == wxCHK_CHECKED) {
 561                     ++checked;
 562                 } else {
 563                     ++unchecked;
 564                 }
 565         }
 566         if (checked == 0) {
 567                 _targets->CheckItem(cinema, wxCHK_UNCHECKED);
 568         } else if (unchecked == 0) {
 569                 _targets->CheckItem(cinema, wxCHK_CHECKED);
 570         } else {
 571                 _targets->CheckItem(cinema, wxCHK_UNDETERMINED);
 572         }
 573 }
 574
 575
 576 void
 577 ScreensPanel::checkbox_changed (wxTreeListEvent& ev)
 578 {
 579         if (_ignore_check_change) {
 580                 return;
 581         }
 582
 583         if (item_to_cinema(ev.GetItem())) {
 584                 /* Cinema: check/uncheck all children */
 585                 auto const checked = _targets->GetCheckedState(ev.GetItem());
 586                 for (auto child = _targets->GetFirstChild(ev.GetItem()); child.IsOk(); child = _targets->GetNextSibling(child)) {
 587                         _targets->CheckItem(child, checked);
 588                         set_screen_checked(child, checked);
 589                 }
 590         } else {
 591                 set_screen_checked(ev.GetItem(), _targets->GetCheckedState(ev.GetItem()));
 592                 setup_cinema_checked_state(ev.GetItem());
 593         }
 594
 595         ScreensChanged ();
 596 }
 597
 598
 599 shared_ptr<Cinema>
 600 ScreensPanel::item_to_cinema (wxTreeListItem item) const
 601 {
 602         auto iter = _item_to_cinema.find (item);
 603         if (iter == _item_to_cinema.end()) {
 604                 return {};
 605         }
 606
 607         return iter->second;
 608 }
 609
 610
 611 shared_ptr<Screen>
 612 ScreensPanel::item_to_screen (wxTreeListItem item) const
 613 {
 614         auto iter = _item_to_screen.find (item);
 615         if (iter == _item_to_screen.end()) {
 616                 return {};
 617         }
 618
 619         return iter->second;
 620 }
 621
 622
 623 optional<wxTreeListItem>
 624 ScreensPanel::cinema_to_item (shared_ptr<Cinema> cinema) const
 625 {
 626         auto iter = _cinema_to_item.find (cinema);
 627         if (iter == _cinema_to_item.end()) {
 628                 return {};
 629         }
 630
 631         return iter->second;
 632 }
 633
 634
 635 optional<wxTreeListItem>
 636 ScreensPanel::screen_to_item (shared_ptr<Screen> screen) const
 637 {
 638         auto iter = _screen_to_item.find (screen);
 639         if (iter == _screen_to_item.end()) {
 640                 return {};
 641         }
 642
 643         return iter->second;
 644 }
 645
 646
 647 int
 648 ScreensPanel::compare (string const& utf8_a, string const& utf8_b)
 649 {
 650         if (_collator) {
 651                 UErrorCode error = U_ZERO_ERROR;
 652                 boost::scoped_array<uint16_t> utf16_a(new uint16_t[utf8_a.size() + 1]);
 653                 u_strFromUTF8(reinterpret_cast<UChar*>(utf16_a.get()), utf8_a.size() + 1, nullptr, utf8_a.c_str(), -1, &error);
 654                 boost::scoped_array<uint16_t> utf16_b(new uint16_t[utf8_b.size() + 1]);
 655                 u_strFromUTF8(reinterpret_cast<UChar*>(utf16_b.get()), utf8_b.size() + 1, nullptr, utf8_b.c_str(), -1, &error);
 656                 return ucol_strcoll(_collator, reinterpret_cast<UChar*>(utf16_a.get()), -1, reinterpret_cast<UChar*>(utf16_b.get()), -1);
 657         } else {
 658                 return strcoll(utf8_a.c_str(), utf8_b.c_str());
 659         }
 660 }