directory.setNameFilters({"*.png", "*.jpg"});

for(const QFileInfo & finfo: directory.entryInfoList()){
    auto imageObject = new QImage();
    imageObject->load(finfo.absoluteFilePath());

    auto image = QPixmap::fromImage(*imageObject);

    QGraphicsScene *scene = new QGraphicsScene(this);

    scene->addPixmap(image);
    //scene->setSceneRect(image.rect());
    QGraphicsView *graphicsView = new QGraphicsView(scene);
    graphicsView->fitInView(scene->sceneRect(),Qt::KeepAspectRatio);



        auto item = new QListWidgetItem("", ui->listWidget_main);
        auto    widget = new QWidget;
        auto    label = new QLabel(finfo.fileName());
        auto    vb = new QVBoxLayout;

    vb->addWidget(label);
    vb->addWidget(graphicsView);

    widget->setLayout(vb);
    widget->setMinimumSize(340,340);
    ui->listWidget_main->setItemWidget(item,widget);