Revision control
++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include "mainwindow.h"
++
++ #include <QAction>
++ #include <QFileDialog>
++ #include <QMenuBar>
++ #include <QStatusBar>
++
++ #include <QIcon>
++ #include <QKeySequence>
++
++ #include <QDir>
++ #include <QItemSelection>
++ #include <QModelIndexList>
++
++ //! [0]
++ MainWindow::MainWindow()
++ : QMainWindow(),
++ addressWidget(new AddressWidget)
++ {
++ setCentralWidget(addressWidget);
++ createMenus();
++ setWindowTitle(tr("Address Book"));
++ }
++ //! [0]
++
++ //! [1a]
++ void MainWindow::createMenus()
++ {
++ QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
++
++ auto *openAct = new QAction(QIcon::fromTheme(QIcon::ThemeIcon::DocumentOpen),
++ tr("&Open..."), this);
++ openAct->setShortcut(QKeySequence(QKeySequence::Open));
++ fileMenu->addAction(openAct);
++ connect(openAct, &QAction::triggered, this, &MainWindow::openFile);
++ //! [1a]
++
++ auto *saveAct = new QAction(QIcon::fromTheme(QIcon::ThemeIcon::DocumentSave),
++ tr("&Save"), this);
++ saveAct->setShortcut(QKeySequence(QKeySequence::Save));
++ fileMenu->addAction(saveAct);
++ connect(saveAct, &QAction::triggered, this, &MainWindow::saveFile);
++
++ fileMenu->addSeparator();
++
++ auto *exitAct = new QAction(QIcon::fromTheme(QIcon::ThemeIcon::ApplicationExit),
++ tr("E&xit"), this);
++ exitAct->setShortcut(QKeySequence(QKeySequence::Quit));
++ fileMenu->addAction(exitAct);
++ connect(exitAct, &QAction::triggered, this, &QWidget::close);
++
++ QMenu *toolMenu = menuBar()->addMenu(tr("&Tools"));
++
++ auto *addAct = new QAction(tr("&Add Entry..."), this);
++ addAct->setShortcut(QKeySequence(Qt::ControlModifier | Qt::Key_A));
++ toolMenu->addAction(addAct);
++ connect(addAct, &QAction::triggered,
++ addressWidget, &AddressWidget::showAddEntryDialog);
++
++ //! [1b]
++ editAct = new QAction(tr("&Edit Entry..."), this);
++ editAct->setEnabled(false);
++ toolMenu->addAction(editAct);
++ connect(editAct, &QAction::triggered, addressWidget, &AddressWidget::editEntry);
++
++ toolMenu->addSeparator();
++
++ removeAct = new QAction(tr("&Remove Entry"), this);
++ removeAct->setEnabled(false);
++ toolMenu->addAction(removeAct);
++ connect(removeAct, &QAction::triggered, addressWidget, &AddressWidget::removeEntry);
++
++ connect(addressWidget, &AddressWidget::selectionChanged,
++ this, &MainWindow::updateActions);
++ }
++ //! [1b]
++
++ //! [2]
++ void MainWindow::openFile()
++ {
++ if (addressWidget->readFromFile())
++ statusBar()->showMessage(tr("Read %1").arg(QDir::toNativeSeparators(AddressWidget::fileName())));
++ }
++ //! [2]
++
++ //! [3]
++ void MainWindow::saveFile()
++ {
++ if (addressWidget->writeToFile())
++ statusBar()->showMessage(tr("Wrote %1").arg(QDir::toNativeSeparators(AddressWidget::fileName())));
++ }
++ //! [3]
++
++ //! [4]
++ void MainWindow::updateActions(const QItemSelection &selection)
++ {
++ const QModelIndexList indexes = selection.indexes();
++
++ removeAct->setEnabled(!indexes.isEmpty());
++ editAct->setEnabled(!indexes.isEmpty());
++ }
++ //! [4]