QListView/QListWidget: copy multiple items and paste elsewhere

I have a QListWidget with its selectionMode set to QAbstractView.ExtendedSelection. So I can select multiple items (rows) in the QListWidget.

If I select multiple items, press Copy (Ctrl+C), and then paste the result elsewhere, either in a Qt text widget or in some non-Qt place, I get the text of only the last item. How can I get the selection to include the text of all the selected items, separated by newlines or something like that?

Based on gut feeling I'd say that the QListWidget only produces the mime-data for the currently selected item. I could be wrong there. However, you can overload the mimeData() function and adapt it to your needs.

It wasn't mimeData(), but franz set me a track of where to look. QAbstractItemView::keyPressEvent() handles Ctrl+C:

Code:

---

if (event == QKeySequence::Copy) {
        QVariant variant;
        if (d->model)
            variant = d->model->data(currentIndex(), Qt::DisplayRole);
        if (variant.type() == QVariant::String)
            QApplication::clipboard()->setText(variant.toString());
        event->accept();
    }

---

You can see that it gets some string data from currentIndex(), which is a single item: it's not going to handle multiple selected items. So I have to subclass QListWidget and reimplement keyPressEvent() to make this work the way I want.