void MainWindow::makeItem( QListWidget* lstWgt, int i ) {
    QWidget* wgt = new QWidget;
    QLayout* l = new QHBoxLayout;
    QLineEdit* lineEdit = new QLineEdit;
    l->addWidget( lineEdit );
    lineEdit->resize(150, 30);
    QPushButton* btn = new QPushButton( "Click me " + QString::number(i));
    connect( btn, SIGNAL( clicked() ), SLOT( onBtnClicked() ) );
    l->addWidget( btn );
    wgt->setLayout( l );

    QListWidgetItem* item = new QListWidgetItem( lstWgt );
    item->setSizeHint( wgt->sizeHint() );
    lstWgt->setItemWidget( item, wgt );
}