File indexing completed on 2023-10-03 07:18:01

 /*
     SPDX-FileCopyrightText: 1997 Mathias Mueller <in5y158@public.uni-hamburg.de>
     SPDX-FileCopyrightText: 2006-2007 Mauricio Piacentini <mauricio@tabuleiro.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 // own
 #include "kmahjongg.h"
 
 // STL
 #include <limits.h>
 
 // Qt
 #include <QAction>
 #include <QFileDialog>
 #include <QIcon>
 #include <QInputDialog>
 #include <QLabel>
 #include <QPixmapCache>
 #include <QScreen>
 #include <QShortcut>
 #include <QStatusBar>
 #include <QWindowStateChangeEvent>
 #include <QRandomGenerator>
 
 // KF
 #include <kwidgetsaddons_version.h>
 #include <KActionCollection>
 #include <KConfigDialog>
 #include <KLocalizedString>
 #include <KMessageBox>
 #include <KStandardAction>
 
 // KDEGames
 #include <KGameClock>
 #include <KScoreDialog>
 #include <KStandardGameAction>
 
 // LibKMahjongg
 #include <KMahjonggConfigDialog>
 
 // KMahjongg
 #include "editor.h"
 #include "gamedata.h"
 #include "gamescene.h"
 #include "gameview.h"
 #include "kmahjongg_debug.h"
 #include "kmahjongglayout.h"
 #include "kmahjongglayoutselector.h"
 #include "prefs.h"
 #include "ui_settings.h"
 
 namespace {
 inline QString gameMagic() { return QStringLiteral("kmahjongg-gamedata"); }
 constexpr int gameDataVersion = 1;
 }
 
 /**
  * @author Mauricio Piacentini  <mauricio@tabuleiro.com>
  */
 class Settings : public QWidget, public Ui::Settings
 {
 public:
     explicit Settings(QWidget * parent)
         : QWidget(parent)
     {
         setupUi(this);
     }
 };
 
 KMahjongg::KMahjongg(QWidget * parent)
     : KXmlGuiWindow(parent)
     , m_gameState(GameState::Gameplay)
     , m_gameView(nullptr)
     , m_gameData(nullptr)
     , m_boardLayout(new KMahjonggLayout())
 {
     //Use up to 3MB for global application pixmap cache
     QPixmapCache::setCacheLimit(3 * 1024);
 
     // minimum area required to display the field
     setMinimumSize(320, 320);
 
     // init board widget
     m_gameScene = new GameScene();
 
     loadLayout();
 
     // init game data
     m_gameData = new GameData(m_boardLayout->board());
 
     // init view and add to window
     m_gameView = new GameView(m_gameScene, m_gameData, this);
     setCentralWidget(m_gameView);
 
     m_boardEditor = new Editor();
     m_boardEditor->setModal(false);
 
     setupStatusBar();
     setupKAction();
 
     m_gameTimer = new KGameClock(this);
 
     connect(m_gameTimer, &KGameClock::timeChanged, this, &KMahjongg::displayTime);
     connect(m_gameView, &GameView::statusTextChanged, this, &KMahjongg::showStatusText);
     connect(m_gameView, &GameView::itemNumberChanged, this, &KMahjongg::showItemNumber);
     connect(m_gameView, &GameView::gameOver, this, &KMahjongg::gameOver);
     connect(m_gameView, &GameView::demoOrMoveListAnimationOver, this, &KMahjongg::demoOrMoveListAnimationOver);
     connect(m_gameView, &GameView::noMovesAvailable, this, &KMahjongg::noMovesAvailable);
     connect(m_gameScene, &GameScene::rotateCW, m_gameView, &GameView::angleSwitchCW);
     connect(m_gameScene, &GameScene::rotateCCW, m_gameView, &GameView::angleSwitchCCW);
 
     m_bLastRandomSetting = Prefs::randomLayout();
 
     loadSettings();
 
     m_boardEditor->setTilesetFromSettings();
 
     startNewGame();
 }
 
 KMahjongg::~KMahjongg()
 {
     delete m_gameView;
     delete m_gameScene;
     delete m_boardLayout;
     delete m_boardEditor;
     delete m_gameData;
 }
 
 void KMahjongg::setupKAction()
 {
     KStandardGameAction::gameNew(this, &KMahjongg::startNewGame, actionCollection());
     KStandardGameAction::load(this, &KMahjongg::loadGame, actionCollection());
     KStandardGameAction::save(this, &KMahjongg::saveGame, actionCollection());
     KStandardGameAction::quit(this, &KMahjongg::close, actionCollection());
     KStandardGameAction::restart(this, &KMahjongg::restartGame, actionCollection());
 
     QAction * newNumGame = actionCollection()->addAction(QStringLiteral("game_new_numeric"));
     newNumGame->setText(i18n("New Numbered Game..."));
     connect(newNumGame, &QAction::triggered, this, &KMahjongg::startNewNumeric);
 
     QAction * action = KStandardGameAction::hint(m_gameView, &GameView::helpMove, this);
     actionCollection()->addAction(action->objectName(), action);
 
     QAction * shuffle = actionCollection()->addAction(QStringLiteral("move_shuffle"));
     shuffle->setText(i18n("Shu&ffle"));
     shuffle->setIcon(QIcon::fromTheme(QStringLiteral("view-refresh")));
     connect(shuffle, &QAction::triggered, m_gameView, &GameView::shuffle);
 
     QAction * angleccw = actionCollection()->addAction(QStringLiteral("view_angleccw"));
     angleccw->setText(i18n("Rotate View Counterclockwise"));
     angleccw->setIcon(QIcon::fromTheme(QStringLiteral("object-rotate-left")));
     actionCollection()->setDefaultShortcut(angleccw, Qt::Key_F);
     connect(angleccw, &QAction::triggered, m_gameView, &GameView::angleSwitchCCW);
 
     QAction * anglecw = actionCollection()->addAction(QStringLiteral("view_anglecw"));
     anglecw->setText(i18n("Rotate View Clockwise"));
     anglecw->setIcon(QIcon::fromTheme(QStringLiteral("object-rotate-right")));
     actionCollection()->setDefaultShortcut(anglecw, Qt::Key_G);
     connect(anglecw, &QAction::triggered, m_gameView, &GameView::angleSwitchCW);
 
     m_fullscreenAction = KStandardAction::fullScreen(
         this, &KMahjongg::toggleFullscreen, this, actionCollection()
     );
 
     m_demoAction = KStandardGameAction::demo(this, &KMahjongg::demoMode, actionCollection());
 
     KStandardGameAction::highscores(this, &KMahjongg::showHighscores, actionCollection());
     m_pauseAction = KStandardGameAction::pause(this, &KMahjongg::pause, actionCollection());
 
     // move
     m_undoAction = KStandardGameAction::undo(this, &KMahjongg::undo, actionCollection());
     m_redoAction = KStandardGameAction::redo(this, &KMahjongg::redo, actionCollection());
 
     // edit
     QAction * boardEdit = actionCollection()->addAction(QStringLiteral("game_board_editor"));
     boardEdit->setText(i18n("&Board Editor"));
     connect(boardEdit, &QAction::triggered, this, &KMahjongg::slotBoardEditor);
 
     // settings
     KStandardAction::preferences(this, &KMahjongg::showSettings, actionCollection());
     setupGUI(qApp->primaryScreen()->geometry().size() * 0.7);
 }
 
 void KMahjongg::toggleFullscreen(bool fullscreen)
 {
     if (fullscreen) {
         setWindowState(Qt::WindowState::WindowFullScreen);
     } else {
         setWindowState(Qt::WindowState::WindowNoState);
     }
 }
 
 void KMahjongg::setupStatusBar()
 {
     m_gameTimerLabel = new QLabel(i18n("Time: 0:00:00"), statusBar());
     statusBar()->addWidget(m_gameTimerLabel);
 
     QFrame * timerDivider = new QFrame(statusBar());
     timerDivider->setFrameStyle(QFrame::VLine);
     statusBar()->addWidget(timerDivider);
 
     m_tilesLeftLabel = new QLabel(i18n("Removed: 0000/0000"), statusBar());
     statusBar()->addWidget(m_tilesLeftLabel, 1);
 
     QFrame * tileDivider = new QFrame(statusBar());
     tileDivider->setFrameStyle(QFrame::VLine);
     statusBar()->addWidget(tileDivider);
 
     m_gameNumLabel = new QLabel(i18n("Game: 000000000000000000000"), statusBar());
     statusBar()->addWidget(m_gameNumLabel);
 
     QFrame * gameNumDivider = new QFrame(statusBar());
     gameNumDivider->setFrameStyle(QFrame::VLine);
     statusBar()->addWidget(gameNumDivider);
 
     m_statusLabel = new QLabel(QStringLiteral("Kmahjongg"), statusBar());
     statusBar()->addWidget(m_statusLabel);
 }
 
 void KMahjongg::displayTime(const QString & timestring)
 {
     m_gameTimerLabel->setText(i18n("Time: ") + timestring);
 }
 
 void KMahjongg::startNewNumeric()
 {
     bool ok;
     int s = QInputDialog::getInt(this, i18nc("@title:window", "New Game"), i18n("Enter game number:"), 0, 0, INT_MAX, 1, &ok);
 
     if (ok) {
         startNewGameWithNumber(s);
     }
 }
 
 void KMahjongg::undo()
 {
     // If the game got stuck (no more matching tiles), the game timer is paused.
     // So resume timer if the player decides to undo moves from that state.
     if (m_gameState == GameState::Stuck) {
         m_gameTimer->resume();
     }
     m_gameView->undo();
     updateState(GameState::Gameplay);
     updateUndoAndRedoStates();
 }
 
 void KMahjongg::redo()
 {
     m_gameView->redo();
     updateUndoAndRedoStates();
 }
 
 void KMahjongg::showSettings()
 {
     if (KConfigDialog::showDialog(QStringLiteral("settings"))) {
         return;
     }
 
     //Use the classes exposed by LibKmahjongg for our configuration dialog
     KMahjonggConfigDialog * dialog = new KMahjonggConfigDialog(this, QStringLiteral("settings"), Prefs::self());
 
     //The Settings class is ours
     dialog->addPage(new Settings(dialog), i18n("General"), QStringLiteral("games-config-options"));
     dialog->addPage(new KMahjonggLayoutSelector(dialog, Prefs::self()), i18n("Board Layout"), QStringLiteral("games-config-board"));
     dialog->addTilesetPage();
     dialog->addBackgroundPage();
 
     connect(dialog, &KMahjonggConfigDialog::settingsChanged, this, &KMahjongg::loadSettings);
     connect(dialog, &KMahjonggConfigDialog::settingsChanged, m_boardEditor, &Editor::setTilesetFromSettings);
 
     dialog->show();
 }
 
 void KMahjongg::loadLayout()
 {
     if (!m_boardLayout->load(Prefs::layout())) {
         qCDebug(KMAHJONGG_LOG) << "Error loading the layout. Try to load the default layout.";
 
         m_boardLayout->loadDefault();
         Prefs::setLayout(m_boardLayout->path());
     }
 }
 
 void KMahjongg::saveSettings()
 {
     Prefs::setLayout(m_boardLayout->path());
     Prefs::setTileSet(m_gameView->getTilesetPath());
     Prefs::setBackground(m_gameView->getBackgroundPath());
     Prefs::setAngle(m_gameView->getAngle());
     Prefs::self()->save();
 }
 
 void KMahjongg::loadSettings()
 {
     // Set the blink-matching-tiles option.
     m_gameView->setMatch(Prefs::showMatchingTiles());
 
     // Load the tileset.
     if (!m_gameView->setTilesetPath(Prefs::tileSet())) {
         qCDebug(KMAHJONGG_LOG) << "An error occurred when loading the tileset " << Prefs::tileSet() << " KMahjongg will continue with the default tileset.";
     }
 
     // Load the background
     if (!m_gameView->setBackgroundPath(Prefs::background())) {
         qCDebug(KMAHJONGG_LOG) << "An error occurred when loading the background " << Prefs::background() << " KMahjongg will continue with the default background.";
     }
 
     // Set whether removed tiles should be shown.
     m_gameView->showRemovedTiles(Prefs::removedTiles());
 
     // Maybe load a new layout and start a new game if the layout or random mode has changed.
     if (m_boardLayout->path() != Prefs::layout() || m_bLastRandomSetting != Prefs::randomLayout()) {
         // The boardlayout path will likely not be the same as the preference setting if
         // random layouts are set. If they are and were last time we don't want to load
         // a new layout or start a new game when the user may have just changed the
         // tileset, background or other settings.
         // Also, if no saved layout setting, avoid endless recursion via startNewGame.
         if ((!m_bLastRandomSetting || !Prefs::randomLayout()) && !Prefs::layout().isEmpty()) {
             // The user has changed the layout, or the random setting.
 
             // If random layouts are set a new layout will be loaded when we call
             // startNewGame, so no need to do so here.
             if (!Prefs::randomLayout()) {
                 loadLayout();
 
                 delete m_gameData;
                 m_gameData = new GameData(m_boardLayout->board());
                 m_gameView->setGameData(m_gameData);
             }
 
             // Track the last random setting.
             m_bLastRandomSetting = Prefs::randomLayout();
 
             startNewGame();
         }
     }
 
     saveSettings();
 }
 
 void KMahjongg::demoMode()
 {
     // Test if a game is already running and whether the user wants to save the game.
     if (m_gameChanged && m_demoAction->isChecked()) {
         if (!askSaveGame(QStringLiteral("kmahjongg_start_demo_ask_for_saving"))) {
             // The user canceled the action, so don't go further with demo mode.
             m_demoAction->setChecked(false);
             return;
         }
     }
 
     if (m_demoAction->isChecked()) {
         loadSettings(); // In case loadGame() has changed the settings.
         updateState(GameState::Demo);
         m_gameTimer->setTime(0);
         m_gameTimer->pause();
         m_gameView->startDemo();
     } else {
         startNewGame();
     }
 }
 
 void KMahjongg::pause()
 {
     if (m_pauseAction->isChecked()) {
         m_gameTimer->pause();
         updateState(GameState::Paused);
         m_gameView->pause(true);
     } else {
         m_gameTimer->resume();
         updateState(GameState::Gameplay);
         m_gameView->pause(false);
     }
 }
 
 void KMahjongg::showHighscores()
 {
     KScoreDialog ksdialog(KScoreDialog::Name | KScoreDialog::Time, this);
     const QString layoutName = m_boardLayout->authorProperty(QStringLiteral("Name"));
     ksdialog.setConfigGroup(qMakePair(QByteArray(layoutName.toUtf8()), layoutName));
     ksdialog.exec();
 }
 
 void KMahjongg::slotBoardEditor()
 {
     m_boardEditor->setVisible(true);
 
     // Set the default size.
     m_boardEditor->setGeometry(Prefs::editorGeometry());
 }
 
 void KMahjongg::noMovesAvailable()
 {
     m_gameTimer->pause();
     updateState(GameState::Stuck);
 
     const QIcon newGameIcon = actionCollection()->action(QString::fromLatin1(KStandardGameAction::name(KStandardGameAction::New)))->icon();
     const QIcon restartIcon = actionCollection()->action(QString::fromLatin1(KStandardGameAction::name(KStandardGameAction::Restart)))->icon();
 #if KWIDGETSADDONS_VERSION >= QT_VERSION_CHECK(5, 100, 0)
     int answer = KMessageBox::questionTwoActionsCancel(
 #else
     int answer = KMessageBox::questionYesNoCancel(
 #endif
         this,
         i18n("Game Over: You have no moves left."),
         i18n("Game Over"),
         KGuiItem(i18n("New Game"), newGameIcon),
         KGuiItem(i18n("Restart"), restartIcon));
 #if KWIDGETSADDONS_VERSION >= QT_VERSION_CHECK(5, 100, 0)
     if (answer == KMessageBox::PrimaryAction) {
 #else
     if (answer == KMessageBox::Yes) {
 #endif
         startNewGame();
 #if KWIDGETSADDONS_VERSION >= QT_VERSION_CHECK(5, 100, 0)
     } else if (answer == KMessageBox::SecondaryAction) {
 #else
     } else if (answer == KMessageBox::No) {
 #endif
         restartGame();
     }
 }
 
 void KMahjongg::startNewGame()
 {
     startNewGameWithNumber(-1);
 }
 
 void KMahjongg::startNewGameWithNumber(int item)
 {
     if (!testForGameChangeSave(QStringLiteral("kmahjongg_start_new_game_ask_for_saving"))) {
         return;
     }
 
     loadSettings(); // In case loadGame() has changed the settings.
 
     // Only load new layout in random mode if we are not given a game number.
     // Use same layout if restarting game or starting a numbered game.
     if (Prefs::randomLayout() && item == -1) {
         QStringList availableLayouts;
         const QStringList layoutDirs = QStandardPaths::locateAll(QStandardPaths::AppDataLocation, QStringLiteral("layouts/"), QStandardPaths::LocateDirectory);
         for (const QString & dir : layoutDirs) {
             const QStringList fileNames = QDir(dir).entryList(QStringList() << QStringLiteral("*.desktop"));
             for (const QString & file : fileNames) {
                 availableLayouts.append(dir + QLatin1Char('/') + file);
             }
         }
         const QString layout = availableLayouts.at(QRandomGenerator::global()->bounded(availableLayouts.size()));
 
         if (m_boardLayout->path() != layout) {
             // Try to load the random layout.
             if (!m_boardLayout->load(layout)) {
                 // Or load the default.
                 m_boardLayout->loadDefault();
             }
 
             delete m_gameData;
             m_gameData = new GameData(m_boardLayout->board());
             m_gameView->setGameData(m_gameData);
         }
     }
 
     m_gameView->createNewGame(item);
 
     m_gameTimer->restart();
 
     if (m_gameView->gameGenerated()) {
         updateState(GameState::Gameplay);
         setCaption(m_boardLayout->layoutName());
     } else {
         updateState(GameState::Finished);
         m_gameTimer->pause();
         showItemNumber(0, 0, 0);
     }
 
     // At the beginning, the game has not been changed.
     m_gameChanged = false;
 }
 
 void KMahjongg::demoOrMoveListAnimationOver(bool demoGameLost)
 {
     if (demoGameLost) {
         KMessageBox::information(this, i18n("Your computer has lost the game."));
     }
 
     startNewGame();
 }
 
 void KMahjongg::changeEvent(QEvent * event)
 {
     if (event->type() == QEvent::WindowStateChange) {
         const QWindowStateChangeEvent * stateEvent = static_cast<QWindowStateChangeEvent *>(event);
         const Qt::WindowStates oldMinimizedState = stateEvent->oldState() & Qt::WindowMinimized;
 
         // N.B. KMahjongg::pause() is not used here, because it is irrelevant to
         // hide the tiles and change the Pause button's state when minimizing.
         if (isMinimized() && oldMinimizedState != Qt::WindowMinimized && m_gameState == GameState::Gameplay) {
             // If playing a game and not paused, stop the clock during minimise.
             m_gameTimer->pause();
         } else if (!isMinimized() && oldMinimizedState == Qt::WindowMinimized && m_gameState == GameState::Gameplay) {
             // If playing a game, start the clock when restoring the window.
             m_gameTimer->resume();
         }
     }
 }
 
 void KMahjongg::closeEvent(QCloseEvent * event)
 {
     saveSettings();
     event->accept();
 }
 
 void KMahjongg::gameOver(unsigned short numRemoved, unsigned short cheats)
 {
     m_gameTimer->pause();
     updateState(GameState::Finished);
 
     // get the time in milli secs
     // subtract from 20 minutes to get bonus. if longer than 20 then ignore
     int time = (60 * 20) - m_gameTimer->seconds();
     if (time < 0) {
         time = 0;
     }
     // conv back to  secs (max bonus = 60*20 = 1200
 
     // points per removed tile bonus (for deragon max = 144*10 = 1440
     int score = (numRemoved * 20);
     // time bonus one point per second under one hour
     score += time;
     // points per cheat penalty (max penalty = 1440 for dragon)
     score -= (cheats * 20);
     if (score < 0) {
         score = 0;
     }
 
     const QString infoGameWon = i18n("You have won with a final time of %1 and a score of %2!", m_gameTimer->timeString(), score);
     KMessageBox::information(this, infoGameWon);
 
     //TODO: add gameNum as a Custom KScoreDialog field?
     //int elapsed = gameTimer->seconds();
     //long gameNum = m_pGameView->getGameNumber();
     //theHighScores->checkHighScore(score, elapsed, gameNum, m_pGameView->getBoardName());
     QPointer<KScoreDialog> ksdialog = new KScoreDialog(KScoreDialog::Name | KScoreDialog::Time, this);
     const QString layoutName = m_boardLayout->authorProperty(QStringLiteral("Name"));
     ksdialog->setConfigGroup(qMakePair(QByteArray(layoutName.toUtf8()), layoutName));
     KScoreDialog::FieldInfo scoreInfo;
     scoreInfo[KScoreDialog::Score].setNum(score);
     scoreInfo[KScoreDialog::Time] = m_gameTimer->timeString();
     if (ksdialog->addScore(scoreInfo, KScoreDialog::AskName)) {
         ksdialog->exec();
     }
 
     m_gameView->startMoveListAnimation();
 }
 
 void KMahjongg::showStatusText(const QString & msg, long board)
 {
     m_statusLabel->setText(msg);
     const QString str = i18n("Game number: %1", board);
     m_gameNumLabel->setText(str);
 }
 
 void KMahjongg::showItemNumber(int maximum, int current, int left)
 {
     // This method will be called, if the number of tiles change. If there is a lower number of tiles than the
     // maximum, some tiles have been removed. If the game is not in demo mode, mark the game as changed.
     m_gameChanged = current < maximum && !m_demoAction->isChecked();
 
     const QString szBuffer = i18n("Removed: %1/%2  Combinations left: %3", maximum - current, maximum, left);
     m_tilesLeftLabel->setText(szBuffer);
 
     updateUndoAndRedoStates();
 }
 
 void KMahjongg::updateState(GameState state)
 {
     m_gameState = state;
     // KXMLGUIClient::stateChanged() sets action-states def. by kmahjonggui.rc.
     switch (state) {
         case GameState::Demo:
             stateChanged(QStringLiteral("demo_state"));
             break;
         case GameState::Paused:
             stateChanged(QStringLiteral("paused_state"));
             break;
         case GameState::Finished:
             stateChanged(QStringLiteral("finished_state"));
             break;
         case GameState::Stuck:
             stateChanged(QStringLiteral("stuck_state"));
             break;
         default:
             stateChanged(QStringLiteral("gameplay_state"));
             updateUndoAndRedoStates();
             break;
     }
 
     m_demoAction->setChecked(state == GameState::Demo);
     m_pauseAction->setChecked(state == GameState::Paused);
 }
 
 void KMahjongg::updateUndoAndRedoStates()
 {
     m_undoAction->setEnabled(m_gameView->checkUndoAllowed());
     m_redoAction->setEnabled(m_gameView->checkRedoAllowed());
 }
 
 void KMahjongg::restartGame()
 {
     if (!testForGameChangeSave(QStringLiteral("kmahjongg_restart_game_ask_for_saving"))) {
         return;
     }
 
     if (m_gameView->gameGenerated()) {
         m_gameView->createNewGame(m_gameView->getGameNumber());
         m_gameTimer->restart();
         updateState(GameState::Gameplay);
     }
 
     // The game has not been changed at the beginning.
     m_gameChanged = false;
 }
 
 void KMahjongg::loadGame()
 {
     if (!testForGameChangeSave(QStringLiteral("kmahjongg_load_game_ask_for_saving"))) {
         return;
     }
 
     const QString filename = QFileDialog::getOpenFileName(this, i18nc("@title:window", "Load Game"), QString(), i18n("KMahjongg Game (*.kmgame)"));
 
     if (filename.isEmpty()) {
         return;
     }
 
     QFile infile(filename);
 
     if (!infile.open(QFile::ReadOnly)) {
         KMessageBox::error(this, i18n("Could not read from file. Aborting."));
         return;
     }
 
     QDataStream in(&infile);
 
     // verify that it is a kmahjongg game file
     QString magic;
     in >> magic;
 
     if (QString::compare(magic, gameMagic(), Qt::CaseSensitive) != 0) {
         KMessageBox::error(this, i18n("File is not a KMahjongg game."));
         infile.close();
 
         return;
     }
 
     // verify data version of saved data
     qint32 version;
     in >> version;
 
     if (version == gameDataVersion) {
         in.setVersion(QDataStream::Qt_4_0);
     } else {
         KMessageBox::error(this, i18n("File format not recognized."));
         infile.close();
         return;
     }
 
     QString tileSetName;
     in >> tileSetName;
     m_gameView->setTilesetPath(tileSetName);
 
     QString backgroundName;
     in >> backgroundName;
     m_gameView->setBackgroundPath(backgroundName);
 
     QString boardLayoutName;
     in >> boardLayoutName;
     m_boardLayout->load(boardLayoutName);
 
     //GameTime
     uint seconds;
     in >> seconds;
     m_gameTimer->setTime(seconds);
 
     delete m_gameData;
     m_gameData = new GameData(m_boardLayout->board());
     m_gameData->loadFromStream(in);
     m_gameView->setGameData(m_gameData);
 
     // Get GameNumber (used not to be saved, so might evaluate to zero).
     qint64 gameNum = 0;
     in >> gameNum;
     if (gameNum > 0) {
         m_gameView->setGameNumber(gameNum);
     }
 
     infile.close();
     updateState(GameState::Gameplay);
 }
 
 void KMahjongg::saveGame()
 {
     m_gameTimer->pause();
 
     const QString filename = QFileDialog::getSaveFileName(this, i18nc("@title:window", "Save Game"), QString(), i18n("KMahjongg Game (*.kmgame)"));
 
     if (filename.isEmpty()) {
         m_gameTimer->resume();
         return;
     }
 
     QFile outfile(filename);
 
     if (!outfile.open(QFile::WriteOnly)) {
         KMessageBox::error(this, i18n("Could not open file for saving."));
         m_gameTimer->resume();
         return;
     }
 
     QDataStream out(&outfile);
 
     // Write a header with a "magic number" and a version
     out << gameMagic();
     out << static_cast<qint32>(gameDataVersion);
     out.setVersion(QDataStream::Qt_4_0);
 
     out << m_gameView->getTilesetPath();
     out << m_gameView->getBackgroundPath();
     out << m_boardLayout->path();
 
     // GameTime
     out << m_gameTimer->seconds();
 
     // GameData
     m_gameData->saveToStream(out);
 
     // GameNumber
     // write game number after game data to obtain backwards compatibility
     out << static_cast<qint64>(m_gameView->getGameNumber());
 
     outfile.close();
     m_gameTimer->resume();
 
     // If the game has been saved, there has been no changed done to ask for saving.
     m_gameChanged = false;
 }
 
 bool KMahjongg::askSaveGame(const QString &dontAskAgainName)
 {
 #if KWIDGETSADDONS_VERSION >= QT_VERSION_CHECK(5, 100, 0)
     const KMessageBox::ButtonCode ret = KMessageBox::questionTwoActionsCancel(this,
 #else
     const KMessageBox::ButtonCode ret = KMessageBox::questionYesNoCancel(this, 
 #endif
             i18n("Do you want to save your game?"), i18n("Save game?"), KStandardGuiItem::save(), 
             KStandardGuiItem::dontSave(), KStandardGuiItem::cancel(), dontAskAgainName);
 
     switch (ret) {
 #if KWIDGETSADDONS_VERSION >= QT_VERSION_CHECK(5, 100, 0)
     case KMessageBox::PrimaryAction:
 #else
     case KMessageBox::ButtonCode::Yes:
 #endif
         saveGame();
         break;
 #if KWIDGETSADDONS_VERSION >= QT_VERSION_CHECK(5, 100, 0)
     case KMessageBox::SecondaryAction:
 #else
     case KMessageBox::ButtonCode::No:
 #endif
         break;
     case KMessageBox::ButtonCode::Cancel:
         return false;
     default:
         return false;
     }
 
     return true;
 }
 
 bool KMahjongg::testForGameChangeSave(const QString &dontAskAgainName)
 {
     // Ask to save the game when it has been changed. The question is also only relevant, if the user is in gameplay
     // or the game has been paused.
     if (m_gameChanged && (m_gameState == GameState::Gameplay || m_gameState == GameState::Paused)) {
         if (!askSaveGame(dontAskAgainName)) {
             // The user wants to cancel the action.
             return false;
         }
     }
 
     return true;
 }
 
 #include "moc_kmahjongg.cpp"