[Qt-interest] widget promotion

[ami guru]

Hello forum,

I have customized class with QGaphicsView as a base class .

In the designer i have a main window and dragged a QGraphicsView
widget and placed that in the form to use that as the placeholder.

Then i promoted that to my customized one.

The customized class that i have has a constructor.

What should be the defualt parameter in the constructor

********************************************************'
class H3DNodeView : public QGraphicsView
{
    H3DNodeView(QWidget *parent = 0);
};

****************************************************************'

In that case i have error


H3DNodeView.cpp: In constructor 'H3DNodeView::H3DNodeView(QWidget*)':
H3DNodeView.cpp:5: error: type 'QWidget' is not a direct base of
'H3DNodeView'


I tried removing that parameter resulting in a following constructor


H3DNodeView::H3DNodeView()


in that case i have anotther error from the ui_***.h file. And that is
logical
because my custom class is inside the another widget



Any suggestion to get around that problem?



Regards
Sajjad
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