#include <QAbstractListModel>
#include <QGeoCoordinate>
#include <QGeoPath>
#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QQmlContext>
#include <QTimer>

class MyModel : public QAbstractListModel
{
public:
    virtual int rowCount(const QModelIndex& index) const override
    {
        if(!index.isValid())
            return _count;
        else
            return 0;
    }

    QHash<int, QByteArray> roleNames() const
    {
        QHash<int, QByteArray> roles;
        roles[Qt::UserRole]        = "PathData";
        return roles;
    }

    virtual QVariant data(const QModelIndex& index, int role) const override
    {
        if(role == Qt::UserRole)
            return QVariant::fromValue(QGeoPath({QGeoCoordinate(0,0), QGeoCoordinate(1,1)}));
        else
            return QVariant();
    }

    void changeItemCount(int count)
    {
        beginResetModel();
        _count = count;
        endResetModel();
    }

    int _count = 25000;
};

int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);
    MyModel myModel;

    QQmlApplicationEngine engine;
    engine.rootContext()->setContextProperty("myModel", &myModel);
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));

    

    QTimer::singleShot(10000, [&]
    {
        QObject* map = engine.rootObjects().first()->findChild<QObject*>("myMap");
        QMetaObject::invokeMethod(map, "clearMapItems");
    });

    return app.exec();

    
}