QDeclarativeProxyWidget

It will probably not be a very original request and probably someone is working on something like this but there do not seem to be any similar open tasks in qt's bugtracker, so I allow myself to add this [probably not original at all] "suggestion" here:

In the old ui I had a very complex custom widget. I used to use it also on QGraphicsView using QGraphicsProxyWidget. I would like to have this widget now also available as a qdeclarativeitem on a qdeclarativeview. I try to define a class in c++ and expose it to qml, and then create and manipulate object of this type from qml.

I tried to use plain QGraphicsProxyWidget (after all qdeclarative view is a qgraphicsview ) : I works in a sense that I can create object of my class from qml and I can see it in my view (although in a very ugly/not-universal way: if I want to be able to add object from qml using block

MyProxyWidget{
}

then I needed a bit of extra trickery to get to the scene to be able to call QGraphicsScene::addItem()). The problem is how to position/anchor/bind etc. it.

• I cannot inherit additionally from QDeclarativeItem because QGraphicsObject would be inherited twice (once from QGraphicsProxyWidget and once QDeclarativeItem)

• I tried to add to my class (inheriting QGraphicsProxyWidget) functionality added by QDeclarativeItem to QGraphicsObject (i.e. I started copying parts of code from qdeclarativeitem.cpp etc. to the files with my class); besides being hell of a chore, it failed on AnchorLines because QDeclarativeAnchorLine.item is of type "QDeclarativeItem *" so if I don't inherit from QDeclarativeItem I basically cannot use QDeclarativeAnchorLine...

Feature request: make it easily possible to use old-fashioned widgets on qml-based view. Oh well, easier to say this than to implement I guess...

Option 1:
extract part of QDeclarativeItem which extends QGraphicsObject to a separate "base" class, so that then QDeclarativeItem would just inherit QGraphicsObject and QDeclarativeItemBase, but then it would also be possible for a user to create a class which inherits QGraphicsProxyWidget and QDeclarativeItemBase (then QDeclarativeAnchorLine.item: would be QDeclarativeItemBase* instead of QDeclarativeItem* etc.).

Option 2:
even simpler from our (developers') point of view: please introduce QDeclarativeProxyWidget class which would behave kind of like QGraphicsProxyWidget but would have qml anchors etc. (I.e. it would inherit QDeclarativeItem and add to it all functionality of QGraphicsProxyWidget).