src/mainwindow.cpp

   1 /*
   2   Copyright (c) 2006-2007 Paolo Capriotti <p.capriotti@gmail.com>
   3             (c) 2006-2007 Maurizio Monge <maurizio.monge@kdemail.net>
   4
   5   This program is free software; you can redistribute it and/or modify
   6   it under the terms of the GNU General Public License as published by
   7   the Free Software Foundation; either version 2 of the License, or
   8   (at your option) any later version.
   9 */
  10
  11 #include "mainwindow.h"
  12 #include <boost/scoped_ptr.hpp>
  13 #include <kaction.h>
  14 #include <kstandardaction.h>
  15 #include <kactioncollection.h>
  16 #include <kicon.h>
  17 #include <klocale.h>
  18 #include <kurl.h>
  19 #include <kfiledialog.h>
  20 #include <kio/netaccess.h>
  21 #include <kmessagebox.h>
  22 #include <kmenubar.h>
  23 #include <QKeySequence>
  24 #include <QStackedWidget>
  25 #include <QDockWidget>
  26 #include <QCloseEvent>
  27 #include <QTextStream>
  28 #include <QTextCodec>
  29
  30 #include "actioncollection.h"
  31 #include "chesstable.h"
  32 #include "console.h"
  33 #include "clock.h"
  34 #include "newgame.h"
  35 #include "variants.h"
  36 #include "gameinfo.h"
  37 #include "controllers/editgame.h"
  38 #include "controllers/editposition.h"
  39 #include "engineinfo.h"
  40 #include "movelist_table.h"
  41 #include "icsconnection.h"
  42 #include "qconnect.h"
  43 #include "mastersettings.h"
  44 #include "flash.h"
  45 #include "foreach.h"
  46 #include "pgnparser.h"
  47 #include "pref_highlight.h"
  48 #include "pref_preferences.h"
  49 #include "tabwidget.h"
  50
  51 using namespace Qt;
  52 using namespace boost;
  53
  54 MainWindow::~MainWindow() {
  55   delete console;
  56   qApp->quit();
  57 }
  58
  59 MainWindow::MainWindow(const QString& variant)
  60 : KXmlGuiWindow(0) {
  61   setObjectName("tagua_main");
  62   m_main = new TabWidget(this);
  63   m_main->setTabBarHidden(true);
  64   setCentralWidget(m_main);
  65
  66   m_movelist_stack = new QStackedWidget;
  67
  68   connect(m_main, SIGNAL(currentChanged(int)),
  69     this, SLOT(changeTab(int)));
  70   connect(m_main, SIGNAL(closeTab()),
  71     this, SLOT(closeTab()));
  72
  73   movelist_dock = new QDockWidget(this);
  74   movelist_dock->setWidget(m_movelist_stack);
  75   movelist_dock->setWindowTitle(i18n("Move list"));
  76   movelist_dock->setObjectName("move_list");
  77   addDockWidget(Qt::LeftDockWidgetArea, movelist_dock, Qt::Vertical);
  78   movelist_dock->show();
  79
  80   ChessTable* board = new ChessTable;
  81
  82   board->setFocus();
  83
  84   console_dock = new QDockWidget(this);
  85   console = new Console(0, i18n("FICS Connection"));
  86   console_dock->setWidget(console);
  87   console_dock->setFocusProxy(console);
  88   console_dock->setWindowTitle(i18n("Console"));
  89   console_dock->setObjectName("console");
  90   addDockWidget(Qt::BottomDockWidgetArea, console_dock, Qt::Horizontal);
  91   console_dock->setWindowFlags(console_dock->windowFlags() & ~Qt::WindowStaysOnTopHint);
  92   console_dock->show();
  93
  94   settings().onChange(this, "settingsChanged");
  95
  96   connect(board, SIGNAL(error(ErrorCode)), this, SLOT(displayErrorMessage(ErrorCode)));
  97   //BROKEN connect(board->clock(), SIGNAL(labelClicked(int)), &ui(), SLOT(setTurn(int)));
  98
  99 //  start in edit game mode
 100   newGame(variant, AbstractPosition::Ptr(), true);
 101
 102   setupActions();
 103   setupGUI();
 104   setupEngineMenu();
 105   updateVariantActions();
 106 }
 107
 108 ChessTable* MainWindow::table() {
 109   return qobject_cast<ChessTable*>(m_main->currentWidget());
 110 }
 111
 112 KAction* MainWindow::installRegularAction(const QString& name, const KIcon& icon, const QString& text, QObject* obj, const char* slot) {
 113   KAction* temp = new KAction(icon, text, this);
 114   actionCollection()->addAction(name, temp);
 115   connect(temp, SIGNAL(triggered(bool)), obj, slot);
 116   return temp;
 117 }
 118
 119 void MainWindow::setupEngineMenu() {
 120   QMenu* engine_menu = 0;
 121   SettingArray engine_settings = settings().group("engines").array("engine");
 122   foreach (Settings s, engine_settings) {
 123     if (!engine_menu) {
 124       // this way the menu is created only if there is at least one engine
 125       engine_menu = menuBar()->addMenu(i18n("E&ngines"));
 126     }
 127
 128     QString name;
 129     EngineDetails engine_details;
 130     engine_details.load(s);
 131
 132     kDebug() << "creating engine " << engine_details.name << endl;
 133     EngineInfo* engine = new EngineInfo(engine_details, ui());
 134
 135     m_engines.push_back(engine);
 136
 137     QMenu* menu = engine_menu->addMenu(engine_details.name);
 138
 139     {
 140       KAction* play_white = new KAction(i18n("Play as &white"), this);
 141       play_white->setCheckable(true);
 142       connect(play_white, SIGNAL(triggered()), engine, SLOT(playAsWhite()));
 143       menu->addAction(play_white);
 144     }
 145     {
 146       KAction* play_black = new KAction(i18n("Play as &black"), this);
 147       play_black->setCheckable(true);
 148       connect(play_black, SIGNAL(triggered()), engine, SLOT(playAsBlack()));
 149       menu->addAction(play_black);
 150     }
 151 #if 0 // disable analysis for the moment
 152     {
 153       KAction* analyze = new KAction(i18n("&Analyze"), this);
 154       analyze->setCheckable(true);
 155       connect(analyze, SIGNAL(triggered()), engine, SLOT(analyze()));
 156       menu->addAction(analyze);
 157     }
 158 #endif
 159   }
 160 }
 161
 162 void MainWindow::setupActions() {
 163   KStandardAction::openNew(this, SLOT(newGame()), actionCollection());
 164   KStandardAction::open(this, SLOT(loadGame()), actionCollection());
 165   KStandardAction::quit(this, SLOT(quit()), actionCollection());
 166   KStandardAction::preferences(this, SLOT(preferences()), actionCollection());
 167
 168   installRegularAction("back", KIcon("go-previous"), i18n("&Back"), &ui(), SLOT(back()));
 169   installRegularAction("forward", KIcon("go-next"), i18n("&Forward"), &ui(), SLOT(forward()));
 170   installRegularAction("begin", KIcon("go-first"), i18n("Be&gin"), &ui(), SLOT(gotoFirst()));
 171   installRegularAction("end", KIcon("go-last"), i18n("&End"), &ui(), SLOT(gotoLast()));
 172   installRegularAction("connect", KIcon("connection-established"), i18n("&Connect"), this, SLOT(icsConnect()));
 173   installRegularAction("disconnect", KIcon("connect-no"), i18n("&Disconnect"), this, SLOT(icsDisconnect()));
 174
 175   KStandardAction::undo(&ui(), SLOT(undo()), actionCollection());
 176   KStandardAction::redo(&ui(), SLOT(redo()), actionCollection());
 177
 178 //   installRegularAction("pgnCopy", KIcon("edit-copy"), i18n("Copy PGN"), this, SLOT(pgnCopy()));
 179 //   installRegularAction("pgnPaste", KIcon("edit-paste"), i18n("Paste PGN"), this, SLOT(pgnPaste()));
 180   installRegularAction("editPosition", KIcon("edit"), i18n("&Edit position"), this, SLOT(editPosition()));
 181   installRegularAction("clearBoard", KIcon("edit-delete"), i18n("&Clear board"), &ui(), SLOT(clearBoard()));
 182   installRegularAction("setStartingPosition", KIcon("contents"), i18n("&Set starting position"),
 183       &ui(), SLOT(setStartingPosition()));
 184   installRegularAction("copyPosition", KIcon(), i18n("&Copy position"), &ui(), SLOT(copyPosition()));
 185   installRegularAction("pastePosition", KIcon(), i18n("&Paste position"), &ui(), SLOT(pastePosition()));
 186   installRegularAction("flip", KIcon("rotate"), i18n("&Flip view"), this, SLOT(flipView()));
 187   installRegularAction("toggleConsole", KIcon("openterm"), i18n("Toggle &console"), this, SLOT(toggleConsole()));
 188   installRegularAction("toggleMoveList", KIcon("view_text"), i18n("Toggle &move list"), this, SLOT(toggleMoveList()));
 189 }
 190
 191 void MainWindow::updateVariantActions() {
 192   ActionCollection* variant_actions = m_ui.variantActions();
 193   unplugActionList("variantActions");
 194   if (variant_actions) {
 195     plugActionList("variantActions", variant_actions->actions());
 196   }
 197   else {
 198     WARNING("No variant actions");
 199   }
 200 }
 201
 202 void MainWindow::readSettings() { }
 203 void MainWindow::writeSettings() { }
 204
 205 void MainWindow::closeEvent(QCloseEvent* e) {
 206   e->accept();
 207   writeSettings();
 208   delete this;
 209 }
 210
 211
 212 void MainWindow::keyPressEvent(QKeyEvent* event) {
 213   if (event->key() == Qt::Key_F5) {
 214     ui().createCtrlAction();
 215   }
 216 }
 217
 218 void MainWindow::keyReleaseEvent(QKeyEvent* event) {
 219   if (event->key() == Qt::Key_F5) {
 220     ui().destroyCtrlAction();
 221   }
 222 }
 223
 224 void MainWindow::changeTab(int index) {
 225   m_ui.setCurrentTab(m_main->currentWidget());
 226   m_movelist_stack->setCurrentIndex(index);
 227   updateVariantActions();
 228 }
 229
 230 void MainWindow::closeTab() {
 231   if (m_main->count() > 1) {
 232     int old_index = m_main->currentIndex();
 233     ChessTable* old_board = table();
 234
 235     int new_index = old_index - 1;
 236     if (new_index < 0)
 237       new_index = old_index + 1;
 238     m_main->setCurrentIndex(new_index);
 239
 240     m_main->removeTab(old_index);
 241     m_movelist_stack->removeWidget(m_movelist_stack->widget(old_index));
 242     m_ui.removeController(old_board);
 243
 244     if (m_main->count() <= 1) {
 245       m_main->setTabBarHidden(true);
 246     }
 247
 248 #if 0 // this doesn't work... why?
 249     ChessTable* old_board = table();
 250     m_ui.removeController(old_board);
 251     m_movelist_stack->removeWidget(
 252       m_movelist_stack->widget(m_main->currentIndex()));
 253     m_main->removeTab(m_main->currentIndex());
 254
 255     delete old_board;
 256
 257     if (m_main->count() <= 1) {
 258       m_main->hideTabBar();
 259     }
 260
 261     // update ui controller (just in case...)
 262     m_ui.setCurrentTab(m_main->currentWidget());
 263 #endif
 264   }
 265 }
 266
 267 void MainWindow::createTab(ChessTable* board, const shared_ptr<Controller>& controller,
 268                            const QString& caption, int index) {
 269   if (index == -1)
 270     index = m_main->addTab(board, caption);
 271   else
 272     m_main->insertTab(index, board, caption);
 273
 274   m_ui.addController(board, controller);
 275   m_ui.setCurrentTab(board);
 276   m_movelist_stack->addWidget(board->moveListTable());
 277
 278   m_main->setCurrentIndex(index);
 279   m_movelist_stack->setCurrentIndex(index);
 280
 281   if (m_main->count() > 1) m_main->setTabBarHidden(false);
 282 }
 283
 284
 285 void MainWindow::cleanupGame(const QString& what, const QString& result) {
 286   Q_UNUSED(what);
 287   Q_UNUSED(result);
 288
 289   cleanupGame();
 290 }
 291
 292 void MainWindow::cleanupGame() {
 293   ui().detach();
 294   ui().end();
 295 }
 296
 297
 298 bool MainWindow::newGame(const QString& variantName, AbstractPosition::Ptr startingPos,
 299                          bool newTab) {
 300   VariantPtr variant = Variants::instance().get(variantName);
 301   if (!variant) {
 302     WARNING("no variant " << variantName << " found");
 303     variant = Variants::instance().get("chess");
 304   }
 305
 306   if (variant) {
 307     ChessTable* board = newTab ? new ChessTable : table();
 308     QString text = QString("Editing %1 game").arg(variant->name().toLower());
 309
 310     shared_ptr<Controller> controller(new EditGameController(
 311       board, variant, startingPos));
 312     if (newTab) {
 313       createTab(board, controller, text);
 314     }
 315     else {
 316       unplugActionList("variantActions");
 317       ui().setController(controller);
 318       table()->setPlayers(Player(), Player());
 319       m_main->setTabText(m_main->currentIndex(), text);
 320     }
 321     return true;
 322   }
 323   else {
 324     ERROR("Could not find the chess variant");
 325     exit(1);
 326     return false;
 327   }
 328 }
 329
 330
 331 void MainWindow::editPosition() {
 332 //BROKEN
 333 #if 0
 334   shared_ptr<Controller> controller(new EditPositionController(table(), ChessVariant::info()));
 335   m_main->setTabText(m_main->currentIndex(), "Editing chess position");
 336   ui().setController(controller);
 337 #endif
 338 }
 339
 340 void MainWindow::setupGame(const GameInfo* gameInfo, const PositionInfo& style12) {
 341   QString variantCode = gameInfo->variant();
 342   VariantPtr variant = Variants::instance().get(variantCode);
 343   shared_ptr<EditGameController> controller(new EditGameController(
 344     table(), variant));
 345   Q_ASSERT(style12.relation == PositionInfo::NotMyMove ||
 346            style12.relation == PositionInfo::MyMove);
 347
 348   // set opponent side
 349   int side = (style12.relation == PositionInfo::MyMove ^ style12.turn == 0) ? 0 : 1;
 350
 351   if (controller->addICSPlayer(side, style12.gameNumber, m_connection)) {
 352     ui().setController(controller);
 353     table()->setPlayers(gameInfo->white(), gameInfo->black());
 354     m_main->setTabText(m_main->currentIndex(),
 355       QString("FICS Game - %1 vs %2").arg(style12.whitePlayer)
 356                                      .arg(style12.blackPlayer));
 357   }
 358 }
 359
 360 void MainWindow::setupExaminedGame(const GameInfo* gameInfo, const PositionInfo& style12) {
 361   shared_ptr<EditGameController> controller(
 362     new EditGameController(table(), Variants::instance().get(gameInfo->variant())));
 363   if (controller->setExaminationMode(style12.gameNumber, m_connection)) {
 364     table()->setPlayers(Player(style12.whitePlayer, -1),
 365                       Player(style12.blackPlayer, -1));
 366     ui().setController(controller);
 367     m_main->setTabText(m_main->currentIndex(),
 368       QString("Examining - %1 vs %2").arg(style12.whitePlayer)
 369                                      .arg(style12.blackPlayer));
 370   }
 371
 372 }
 373
 374 void MainWindow::setupObservedGame(const GameInfo* g, const PositionInfo& style12) {
 375   std::auto_ptr<ChessTable> board(new ChessTable);
 376
 377   shared_ptr<EditGameController> controller(new EditGameController(
 378                                       board.get(), Variants::instance().get(g->variant())));
 379   if (controller->setObserveMode(style12.gameNumber, m_connection)) {
 380     board->setPlayers(Player(style12.whitePlayer, -1),
 381                       Player(style12.blackPlayer, -1));
 382 //    ui().setController(controller);
 383     //std::cout << "adding tab" << std::endl;
 384     createTab(board.get(), controller,
 385       QString("Observing - %1 vs %2").arg(style12.whitePlayer)
 386                                      .arg(style12.blackPlayer));
 387     board.release();
 388   }
 389 }
 390
 391 void MainWindow::setupPGN(const QString& s) {
 392   PGN pgn(s);
 393
 394   std::map<QString, QString>::const_iterator var = pgn.m_tags.find("Variant");
 395   VariantPtr variant;
 396
 397   if (var == pgn.m_tags.end()) {
 398     variant = Variants::instance().get("chess");
 399   }
 400   else if (!(variant = Variants::instance().get(var->second))) {
 401     std::cout << " --> MainWindow::setupPGN: Error, no such variant " << var->second << std::endl;
 402     return;
 403   }
 404
 405   shared_ptr<EditGameController> controller(new EditGameController(
 406                                               table(), variant));
 407   ui().setController(controller);
 408   controller->loadPGN(pgn);
 409
 410 //   table()->setPlayers(gameInfo->white(), gameInfo->black());
 411 //   m_main->setTabText(m_main->currentIndex(),
 412 //     QString("FICS Game - %1 vs %2").arg(style12.whitePlayer)
 413 //                                     .arg(style12.blackPlayer));
 414 }
 415
 416 bool MainWindow::openFile(const QString& filename) {
 417   QFileInfo info(filename);
 418
 419   if(info.isDir()) {
 420      KMessageBox::sorry(this, i18n("You have specified a folder"), i18n("Error"));
 421      return false;
 422   }
 423
 424   if(!info.exists() || !info.isFile()) {
 425      KMessageBox::sorry(this, i18n("The specified file does not exist"), i18n("Error"));
 426      return false;
 427   }
 428
 429   QFile file(filename);
 430
 431   if(!file.open(QIODevice::ReadOnly)) {
 432      KMessageBox::sorry(this, i18n("You do not have read permission to this file."), i18n("Error"));
 433      return false;
 434   }
 435
 436   QTextStream stream(&file);
 437   QTextCodec *codec;
 438   codec = QTextCodec::codecForLocale();
 439   stream.setCodec(codec);
 440
 441   setupPGN(stream.readAll());
 442   //ui().pgnPaste(stream.readAll());
 443   return true;
 444 }
 445
 446 void MainWindow::loadGame() {
 447   KUrl url = KFileDialog::getOpenUrl(KUrl(), "*.pgn", this, i18n("Open PGN file"));
 448
 449   if(url.isEmpty())
 450     return;
 451
 452   QString tmp_file;
 453   if (KIO::NetAccess::download(url, tmp_file, this)) {
 454     openFile(tmp_file);
 455     KIO::NetAccess::removeTempFile(tmp_file);
 456   }
 457   else
 458     KMessageBox::error(this, KIO::NetAccess::lastErrorString());
 459 }
 460
 461 void MainWindow::createConnection(const QString& username, const QString& password,
 462                                   const QString& host, quint16 port,
 463                                   const QString& timeseal, const QString& timeseal_cmd) {
 464   m_connection = shared_ptr<ICSConnection>(new ICSConnection);
 465
 466   connect(m_connection.get(), SIGNAL(established()), this, SLOT(onEstablishConnection()));
 467   connect(m_connection.get(), SIGNAL(hostLookup()), this, SLOT(onHostLookup()));
 468   connect(m_connection.get(), SIGNAL(hostFound()), this, SLOT(onHostFound()));
 469
 470   connect(m_connection.get(), SIGNAL(receivedLine(QString, int)), console, SLOT(displayText(QString, int)));
 471   connect(m_connection.get(), SIGNAL(receivedText(QString, int)), console, SLOT(displayText(QString, int)));
 472
 473   connect(console, SIGNAL(receivedInput(const QString&)), m_connection.get(), SLOT(sendText(const QString&)));
 474   connect(console, SIGNAL(notify()), this, SLOT(flash()));
 475
 476   connect(m_connection.get(), SIGNAL(loginPrompt()), this, SLOT(sendLogin()));
 477   connect(m_connection.get(), SIGNAL(registeredNickname()), this, SLOT(sendBlankPassword()));
 478   connect(m_connection.get(), SIGNAL(prompt()), this, SLOT(prompt()));
 479
 480
 481   connect(m_connection.get(), SIGNAL(creatingExaminedGame(const GameInfo*, const PositionInfo&)),
 482           this, SLOT(setupExaminedGame(const GameInfo*, const PositionInfo&)));
 483   connect(m_connection.get(), SIGNAL(endingExaminedGame(int)), this, SLOT(cleanupGame()));
 484
 485   connect(m_connection.get(), SIGNAL(creatingObservedGame(const GameInfo*, const PositionInfo&)),
 486           this, SLOT(setupObservedGame(const GameInfo*, const PositionInfo&)));
 487   connect(m_connection.get(), SIGNAL(endingObservedGame(int)), this, SLOT(cleanupGame()));
 488
 489
 490   connect(m_connection.get(), SIGNAL(creatingGame(const GameInfo*, const PositionInfo&)),
 491           this, SLOT(setupGame(const GameInfo*, const PositionInfo&)));
 492   connect(m_connection.get(), SIGNAL(endingGame(const QString&, const QString&)),
 493           this, SLOT(cleanupGame(const QString&, const QString&)));
 494   connect(m_connection.get(), SIGNAL(notification()), this, SLOT(flash()));
 495
 496   m_connection->establish(host.toAscii().constData(), port, timeseal, timeseal_cmd);
 497   console->show();
 498
 499   // send username / password combination
 500   if (!username.isEmpty()) {
 501     m_connection->sendText(username);
 502     m_connection->sendText(password);
 503   }
 504
 505   quickConnectDialog.reset();
 506 }
 507
 508 void MainWindow::icsConnect() {
 509   quickConnectDialog = shared_ptr<QConnect>(new QConnect(this));
 510   connect(quickConnectDialog.get(),
 511           SIGNAL(acceptConnection(const QString&,
 512                                   const QString&,
 513                                   const QString&,
 514                                   quint16,
 515                                   const QString&,
 516                                   const QString&)),
 517           this,
 518           SLOT(createConnection(const QString&,
 519                                 const QString&,
 520                                 const QString&,
 521                                 quint16,
 522                                 const QString&,
 523                                 const QString&)));
 524   quickConnectDialog->show();
 525 }
 526
 527 void MainWindow::destroyConnection() {
 528   m_connection.reset();
 529 }
 530
 531 void MainWindow::icsDisconnect() {
 532   destroyConnection();
 533   console->hide();
 534   console->clear();
 535 }
 536
 537 void MainWindow::testConnect() {
 538   Settings s_ics = settings().group("ics");
 539   if (s_ics["username"]) {
 540     QString username = s_ics["username"].value<QString>();
 541     QString password = (s_ics["password"] | "");
 542     QString host = (s_ics["icsHost"] | "freechess.org");
 543     quint16 port = (s_ics["icsPort"] | 5000);
 544     createConnection(username, password, host, port, QString(), QString() );
 545   }
 546   else icsConnect();
 547 }
 548
 549
 550 void MainWindow::onEstablishConnection() {
 551 //  std::cout << "connection established" << std::endl;
 552 }
 553
 554 void MainWindow::onConnectionError(int ) {
 555 //  std::cout << "connection error (" << code << ")" << std::endl;
 556 }
 557
 558 void MainWindow::onHostLookup() {
 559 //  std::cout << "hostLookup..." << std::flush;
 560 }
 561
 562 void MainWindow::onHostFound() {
 563 //  std::cout << "found" << std::endl;
 564 }
 565
 566
 567 void MainWindow::sendLogin() {
 568 //  std::cout << "sending username" << std::endl;
 569 //  connection->sendText(connection->username());
 570 }
 571
 572 void MainWindow::sendBlankPassword() {
 573   m_connection->sendText("");
 574 }
 575
 576 void MainWindow::prompt() {
 577   if (!m_connection->initialized()) {
 578     m_connection->startup();
 579     m_connection->setInitialized();
 580   }
 581 }
 582
 583 void MainWindow::newGame() {
 584   AbstractPosition::Ptr pos = ui().position();
 585   scoped_ptr<NewGame> dialog(new NewGame(this));
 586   if (dialog->exec() == QDialog::Accepted) {
 587     if (!newGame(dialog->variant(), PositionPtr(), dialog->newTab()))
 588       QMessageBox::information(this, i18n("Error"), i18n("Error creating game"));
 589   }
 590 }
 591
 592 void MainWindow::quit() {
 593   delete this;
 594 }
 595
 596 void MainWindow::flipView() {
 597   table()->flip();
 598 }
 599
 600 void MainWindow::toggleConsole() {
 601   if (console_dock->isVisible())
 602     console_dock->hide();
 603   else {
 604     console_dock->show();
 605     console_dock->setFocus(Qt::MouseFocusReason
 606           /*Qt::ActiveWindowFocusReason*/ /*Qt::OtherFocusReason*/);
 607   }
 608 }
 609
 610 void MainWindow::toggleMoveList() {
 611   if (movelist_dock->isVisible())
 612     movelist_dock->hide();
 613   else {
 614     movelist_dock->show();
 615     movelist_dock->setFocus(Qt::OtherFocusReason);
 616   }
 617 }
 618
 619
 620 void MainWindow::displayMessage(const QString& msg) {
 621   Q_UNUSED(msg); // TODO
 622 //   statusBar()->message(msg, 2000);
 623 }
 624
 625 void MainWindow::displayErrorMessage(ErrorCode code) {
 626   switch(code) {
 627   case InvalidMove:
 628     displayMessage(i18n("Illegal move"));
 629     break;
 630   }
 631 }
 632
 633 void MainWindow::flash() {
 634   if( !isAncestorOf(QApplication::focusWidget()) )
 635     Flash::flash(this);
 636 }
 637
 638 #if 0
 639 void MainWindow::prefHighlight() {
 640   PrefHighlight dialog;
 641   int result = dialog.exec();
 642   if (result == QDialog::Accepted) {
 643     dialog.apply();
 644   }
 645 }
 646 #endif
 647
 648 void MainWindow::preferences() {
 649   Preferences dialog(ui().currentVariant());
 650   int result = dialog.exec();
 651   if (result == QDialog::Accepted)
 652     dialog.apply();
 653 }
 654
 655 void MainWindow::settingsChanged() {
 656   ui().reloadSettings();
 657 }
 658
 659
 660