Revision control
++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include <QtWidgets>
++
++ #include "mainwindow.h"
++ #include "printpanel.h"
++
++ static constexpr QLatin1StringView version("1.0");
++ MainWindow::MainWindow()
++ {
++ printPanel = new PrintPanel;
++ setCentralWidget(printPanel);
++
++ createActions();
++ createMenus();
++
++ //! [0]
++ setWindowTitle(tr("Troll Print %1").arg(version));
++ //! [0]
++ }
++
++ void MainWindow::about()
++ {
++ QMessageBox::information(this, tr("About Troll Print %1").arg(version),
++ tr("Troll Print %1.\n\n"
++ "Copyright 1999 Software, Inc.").arg(version));
++ }
++
++ //! [1]
++ void MainWindow::createActions()
++ {
++ //! [2]
++ exitAct = new QAction(tr("E&xit"), this);
++ exitAct->setShortcut(tr("Ctrl+Q", "Quit"));
++ //! [2]
++ connect(exitAct, &QAction::triggered, this, &MainWindow::close);
++
++ aboutAct = new QAction(tr("&About"), this);
++ aboutAct->setShortcut(Qt::Key_F1);
++ connect(aboutAct, &QAction::triggered, this, &MainWindow::about);
++
++ aboutQtAct = new QAction(tr("About &Qt"), this);
++ connect(aboutQtAct, &QAction::triggered, qApp, &QApplication::aboutQt);
++ }
++
++ void MainWindow::createMenus()
++ //! [1] //! [3]
++ {
++ QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
++ fileMenu->addAction(exitAct);
++
++ menuBar()->addSeparator();
++
++ QMenu *helpMenu = menuBar()->addMenu(tr("&Help"));
++ helpMenu->addAction(aboutAct);
++ helpMenu->addAction(aboutQtAct);
++ }
++ //! [3]