#include "PuzzleWindow.h"#include "CardsModel.h"#include "CardsView.h"#include "CardsDelegate.h"#include <QVBoxLayout>#include <QToolButton>#include <QMenuBar>#include <QMenu>#include <QApplication>PuzzleWindow::PuzzleWindow(QWidget *parent, Qt::WFlags fl)  : QMainWindow(parent, fl){    // random seed    srand(time(0));    setWindowTitle("Puzzle Game");        QWidget *vbox = new QWidget(this);    QVBoxLayout *vlayout = new QVBoxLayout(vbox);    vlayout->setMargin(0);    CardsView *view = new CardsView(vbox);    CardsModel *table = new CardsModel(this);    view->setModel(table);    view->setItemDelegate(new CardsDelegate(this));    view->setShowGrid(false);    vlayout->addWidget(view);    view->setFocus();    setCentralWidget(vbox);    QAction *actionNew = new QAction("New", this);    connect(actionNew, SIGNAL(triggered()), table, SLOT(randomize()));    QAction *actionReset = new QAction("Reset", this);    connect(actionReset, SIGNAL(triggered()), table, SLOT(reset()));    actionShowNum = new QAction("Show Numbers", this);    actionShowNum->setCheckable(true);    actionShowNum->setChecked(false);    connect(actionShowNum, SIGNAL(toggled(bool)), table, SLOT(showNumber(bool)));    QAction *actionSave = new QAction("Save", this);    connect(actionSave, SIGNAL(triggered()), table, SLOT(saveConfig()));        QAction *actionLoad = new QAction("Load", this);    connect(actionLoad, SIGNAL(triggered()), table, SLOT(loadConfig()));    QAction *actionQuit = new QAction("Quit", this);    connect(actionQuit, SIGNAL(triggered()), qApp, SLOT(quit()));        connect(table, SIGNAL(updateMenu(bool)), this, SLOT(updateMenu(bool)));    QMenuBar *menubar = this->menuBar();    QMenu *gameMenu = menubar->addMenu("Game");    gameMenu->addAction(actionNew);    gameMenu->addAction(actionReset);    gameMenu->addAction(actionSave);    gameMenu->addAction(actionLoad);    gameMenu->addAction(actionQuit);    QMenu *optionMenu = menubar->addMenu("Option");    optionMenu->addAction(actionShowNum);}void PuzzleWindow::updateMenu(bool showNum){    actionShowNum->setChecked(showNum);}