shortcut = new QShortcut(QKeySequence("r"), listWidget);
connect(shortcut, &QShortcut::activated, [=]() {
QListWidgetItem * item = listWidget->currentItem();
shortcut = new QShortcut(QKeySequence("r"), listWidget);
connect(shortcut, &QShortcut::activated, [=]() {
QListWidgetItem * item = listWidget->currentItem();