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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include <QtGui>
++
++ #include "mainwindow.h"
++ #include "model.h"
++
++ MainWindow::MainWindow()
++ {
++ QMenu *fileMenu = new QMenu(tr("&File"));
++
++ QAction *quitAction = fileMenu->addAction(tr("E&xit"));
++ quitAction->setShortcut(tr("Ctrl+Q"));
++
++ QMenu *itemsMenu = new QMenu(tr("&Items"));
++
++ insertAction = itemsMenu->addAction(tr("&Insert Item"));
++ removeAction = itemsMenu->addAction(tr("&Remove Item"));
++ QAction *ascendingAction = itemsMenu->addAction(tr("Sort in &Ascending Order"));
++ QAction *descendingAction = itemsMenu->addAction(tr("Sort in &Descending Order"));
++
++ menuBar()->addMenu(fileMenu);
++ menuBar()->addMenu(itemsMenu);
++
++ QStringList strings;
++ strings << tr("Oak") << tr("Fir") << tr("Pine") << tr("Birch")
++ << tr("Hazel") << tr("Redwood") << tr("Sycamore") << tr("Chestnut");
++ model = new StringListModel(strings, this);
++ /* For convenient quoting:
++ QListView *listView = new QListView(this);
++ */
++ listView = new QListView(this);
++ listView->setModel(model);
++ listView->setSelectionMode(QAbstractItemView::SingleSelection);
++
++ connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));
++ connect(ascendingAction, SIGNAL(triggered()), this, SLOT(sortAscending()));
++ connect(descendingAction, SIGNAL(triggered()), this, SLOT(sortDescending()));
++ connect(insertAction, SIGNAL(triggered()), this, SLOT(insertItem()));
++ connect(removeAction, SIGNAL(triggered()), this, SLOT(removeItem()));
++ connect(listView->selectionModel(),
++ SIGNAL(currentChanged(QModelIndex,QModelIndex)),
++ this, SLOT(updateMenus(QModelIndex)));
++
++ updateMenus(listView->selectionModel()->currentIndex());
++
++ setCentralWidget(listView);
++ setWindowTitle(tr("List View"));
++ }
++
++ void MainWindow::sortAscending()
++ {
++ model->sort(0, Qt::AscendingOrder);
++ }
++
++ void MainWindow::sortDescending()
++ {
++ model->sort(0, Qt::DescendingOrder);
++ }
++
++ void MainWindow::insertItem()
++ {
++ QModelIndex currentIndex = listView->currentIndex();
++ if (!currentIndex.isValid())
++ return;
++
++ QString itemText = QInputDialog::getText(this, tr("Insert Item"),
++ tr("Input text for the new item:"));
++
++ if (itemText.isNull())
++ return;
++
++ if (model->insertRow(currentIndex.row(), QModelIndex())) {
++ QModelIndex newIndex = model->index(currentIndex.row(), 0, QModelIndex());
++ model->setData(newIndex, itemText, Qt::EditRole);
++
++ QString toolTipText = tr("Tooltip:") + itemText;
++ QString statusTipText = tr("Status tip:") + itemText;
++ QString whatsThisText = tr("What's This?:") + itemText;
++ model->setData(newIndex, toolTipText, Qt::ToolTipRole);
++ model->setData(newIndex, toolTipText, Qt::StatusTipRole);
++ model->setData(newIndex, whatsThisText, Qt::WhatsThisRole);
++ }
++ }
++
++ void MainWindow::removeItem()
++ {
++ QModelIndex currentIndex = listView->currentIndex();
++ if (!currentIndex.isValid())
++ return;
++
++ model->removeRow(currentIndex.row(), QModelIndex());
++ }
++
++ void MainWindow::updateMenus(const QModelIndex ¤t)
++ {
++ insertAction->setEnabled(current.isValid());
++ removeAction->setEnabled(current.isValid());
++ }