Widget Promotion

[tvj4218]

I've got a form in Qt designer that I am trying to promote to a custom widget.
At the moment there is nothing else in the form, so just the QWidget.
When I right click on this widget in the designer, the "Promote to.." option is missing.
I go ahead and select the "Promoted widgets..." option, but then in the resulting
dialog, the "Add" button is grayed out even after I select the custom widget in the top window.

Are you not allowed to promote the top widget to something else?

n

[anda_skoa]

I think you can only promote child widgets, not the template's container.

Cheers,
_

[d_stranz]

If you create a custom QWidget-based class for your form, and you want to add that form class to another UI file in Qt Designer, then you add a QWidget and promote -that- QWidget to your form class. It doesn't make much sense to promote the top level widget (the form) to something that doesn't yet exist until you actually use the form as the UI class for a new QWidget-based class.