How to hide QComboBox items instead of clearing them out

Question

I can't find a way to hide QComboBox items. So far the only way to filter its items out is to delete the existing ones (with .clear() method). And then to rebuild the entire QComboBox again using its .addItem() method.

I would rather temporary hide the items. And when they are needed to unhide them back. Is hide/unhide on QCombobox items could be accomplished?

Answer 1

In case someone still looking for an answer:

By default, QComboBox uses QListView to display the popup list and QListView has the setRowHidden() method:

qobject_cast<QListView *>(comboBox->view())->setRowHidden(0, true);

Edit: fix code according to @Tobias Leupold's comment.
Edit: Python version:

# hide row
view = comboBox.view()
view.setRowHidden(row, True)

# disable item
model = comboBox.model()
item = model.item(row)
item.setFlags(item.flags() & ~Qt.ItemIsEnabled)

# enable item
view.setRowHidden(row, false)
item.setFlags(item.flags() | Qt.ItemIsEnabled)