void Source::start(QUrl qmlUrl)
{
    component = new QDeclarativeComponent(&engine, qmlUrl);
    if (component->isLoading())
    {
        emit statusChanged(QString("Loading ") + qmlUrl.toString());
        QObject::connect(component, SIGNAL(statusChanged(QDeclarativeComponent::Status)), this, SLOT(continueStarting()));
    }
    else
        continueStarting();
}

void Source::continueStarting()
{
    if (component->isError())
    {
        QString errorString("Errors:");
        for (QDeclarativeError error : component->errors())
        {
            errorString += "\n";
            errorString += error.toString();
        }
        emit statusChanged(errorString);
        emit done();
        return;
    }
    source = component->create();
    QDeclarativeItem *item = qobject_cast<QDeclarativeItem*>(myObject);
}