qt-everywhere-src-5.15.1/qtquickcontrols/tests/manual/combobox/main.cpp

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** This file is part of the test suite of the Qt Toolkit.
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#include <QtWidgets/QApplication>
#include <QtQml>
#include <QtQuick/QQuickView>
#include <QtCore/QString>
#include <QStandardItemModel>
#include <QStringList>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QStandardItemModel model;
    model.appendRow(new QStandardItem("Norway"));
    model.appendRow(new QStandardItem("Netherlands"));
    model.appendRow(new QStandardItem("New Zealand"));
    model.appendRow(new QStandardItem("Namibia"));
    model.appendRow(new QStandardItem("Nicaragua"));
    model.appendRow(new QStandardItem("North Korea"));
    model.appendRow(new QStandardItem("Northern Cyprus "));
    model.appendRow(new QStandardItem("Sweden"));
    model.appendRow(new QStandardItem("Denmark"));

    QStringList strings;
    strings << "Norway" << "Sweden" << "Denmark";

    QQmlApplicationEngine engine;
    engine.rootContext()->setContextProperty("standardmodel", &model);
    engine.rootContext()->setContextProperty("stringmodel", strings);
    engine.load(QUrl("main.qml"));
    QObject *topLevel = engine.rootObjects().value(0);

    QQuickWindow *window = qobject_cast<QQuickWindow *>(topLevel);
    if ( !window ) {
        qWarning("Error: Your root item has to be a Window.");
        return -1;
    }
    window->show();
    return app.exec();
}