Best way to dinamically add different QWidgets to a layout?

I have a QDialog with a QComboBox and a vertical layout in it. I also have many different QWidgets that I want to add to vertical layout depending on a value selected in a QComboBox. So, only one QWidget at a time will be in a vertical layout.

What is the best way to achieve this in Qt?

Basically, I would like to have something like this:

ui->verticalLayout->addWidget(createMyWidget(myCombobox->currentText()));

where currentText is the name of a class (there are a lot of different classes that are QWidgets), and createMyWidget returns pointer to newly created object. All that when signal currentTextChanged emits.

I did this with a macro and a template function, but I would like to know if there is a better way in Qt.