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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include <QApplication>
++ #include <QSurfaceFormat>
++ #include <QScreen>
++ #include <QCommandLineParser>
++ #include <QCommandLineOption>
++
++ #include "glwidget.h"
++ #include "mainwindow.h"
++
++ int main(int argc, char *argv[])
++ {
++ QApplication app(argc, argv);
++
++ QCoreApplication::setApplicationName("Qt Hello GL 2 Example");
++ QCoreApplication::setOrganizationName("QtProject");
++ QCoreApplication::setApplicationVersion(QT_VERSION_STR);
++ QCommandLineParser parser;
++ parser.setApplicationDescription(QCoreApplication::applicationName());
++ parser.addHelpOption();
++ parser.addVersionOption();
++ QCommandLineOption multipleSampleOption("multisample", "Multisampling");
++ parser.addOption(multipleSampleOption);
++ QCommandLineOption coreProfileOption("coreprofile", "Use core profile");
++ parser.addOption(coreProfileOption);
++ QCommandLineOption transparentOption("transparent", "Transparent window");
++ parser.addOption(transparentOption);
++
++ parser.process(app);
++
++ QSurfaceFormat fmt;
++ fmt.setDepthBufferSize(24);
++ if (parser.isSet(multipleSampleOption))
++ fmt.setSamples(4);
++ if (parser.isSet(coreProfileOption)) {
++ fmt.setVersion(3, 2);
++ fmt.setProfile(QSurfaceFormat::CoreProfile);
++ }
++ QSurfaceFormat::setDefaultFormat(fmt);
++
++ MainWindow mainWindow;
++
++ // Note: Transparency does not work for wasm
++ GLWidget::setTransparent(parser.isSet(transparentOption));
++ if (GLWidget::isTransparent()) {
++ mainWindow.setAttribute(Qt::WA_TranslucentBackground);
++ mainWindow.setAttribute(Qt::WA_NoSystemBackground, false);
++ }
++ mainWindow.resize(mainWindow.sizeHint());
++ int desktopArea = QGuiApplication::primaryScreen()->size().width() *
++ QGuiApplication::primaryScreen()->size().height();
++ int widgetArea = mainWindow.width() * mainWindow.height();
++ if (((float)widgetArea / (float)desktopArea) < 0.75f)
++ mainWindow.show();
++ else
++ mainWindow.showMaximized();
++ return app.exec();
++ }