/****************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
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** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
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****************************************************************************/

#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QtQuickControls2/qquickstyle.h>

int main(int argc, char *argv[])
{
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QGuiApplication app(argc, argv);

    // Todo: rename the "default" style to e.g "simple"
    // and use "default" as a phony style name instad
    // to mean "get me the default style on the current
    // platform".
    const QString style = qEnvironmentVariable("DESKTOPGALLERY_STYLE");
    if (!style.isEmpty())
        QQuickStyle::setStyle(style);
    else
#if defined(Q_OS_MACOS)
        QQuickStyle::setStyle("macOS");
#elif defined(Q_OS_WINDOWS)
        QQuickStyle::setStyle("Windows");
#else
        QQuickStyle::setStyle("FusionDesktop");
#endif

    QQmlApplicationEngine engine;
    const QUrl url(QStringLiteral("qrc:/main.qml"));
    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
                     &app, [url](QObject *obj, const QUrl &objUrl) {
        if (!obj && url == objUrl)
            QCoreApplication::exit(-1);
    }, Qt::QueuedConnection);
    engine.load(url);

    return app.exec();
}