screenlistmodel.cpp

Enable keyboard shortcuts

++ // Copyright (C) 2022 The Qt Company Ltd.

++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

++

++ #include "screenlistmodel.h"

++

++ #include <QGuiApplication>

++ #include <QScreen>

++

++ #include <QTextStream>

++

++ ScreenListModel::ScreenListModel(QObject *parent) :

++       QAbstractListModel(parent)

++ {

++     auto *app = qApp;

++     connect(app, &QGuiApplication::screenAdded, this, &ScreenListModel::screensChanged);

++     connect(app, &QGuiApplication::screenRemoved, this, &ScreenListModel::screensChanged);

++     connect(app, &QGuiApplication::primaryScreenChanged, this, &ScreenListModel::screensChanged);

++ }

++

++ int ScreenListModel::rowCount(const QModelIndex &) const

++ {

++     return QGuiApplication::screens().size();

++ }

++

++ QVariant ScreenListModel::data(const QModelIndex &index, int role) const

++ {

++     const auto screenList = QGuiApplication::screens();

++     Q_ASSERT(index.isValid());

++     Q_ASSERT(index.row() <= screenList.size());

++

++     if (role == Qt::DisplayRole) {

++         auto *screen = screenList.at(index.row());

++         QString description;

++         QTextStream str(&description);

++         str << '"' << screen->name() << "\" " << screen->size().width() << 'x'

++             << screen->size().height() << ", " << screen->logicalDotsPerInch() << "DPI";

++         return description;

++     }

++

++     return {};

++ }

++

++ QScreen *ScreenListModel::screen(const QModelIndex &index) const

++ {

++     return QGuiApplication::screens().value(index.row());

++ }

++

++ void ScreenListModel::screensChanged()

++ {

++     beginResetModel();

++     endResetModel();

++ }

++

++ #include "moc_screenlistmodel.cpp"