Designer not listing slots in sub-classed controls

[Perdrix]

I have a subclass of QWidget that has a public slot declared in the header file:

public slots:
    void on_fourCorners_clicked(bool)
    {
        m_fourCorners = !m_fourCorners;
        drawOnPixmap();
        update();
    }

I have a ui file that uses this control and I promoted the QWidget to be a DSS::ImageView object:

Why doesn't the Signals/Slots configuration list this slot? It knows the name of the header file so it should be able to see that there's a slot declared there...

I manually edited the ui file to add that connection, but surely I shouldn't need to descend to that level!
David

[JonB]

@Perdrix
No idea. But nearly all "experienced" Qt users will not even attempt to use the signals/slots interface provided by Creator and its requirement on slot names. Since you are now a "serious" Qt programmer I suggest you think about doing the same.

[Chris Kawa]

@Perdrix Promotion is for simple replacement of type when generating the C++ code. It does not expose your custom type to the editor i.e. signals, slots, properties etc. If you want a full support for custom type you have to create a designer plugin. Don't hack the .ui file manually. This may work now and silently break at any time in the future, as it's not a supported feature.