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6888 :: nimqml's abstractitemmodel example is unclear to me

• mantielero (orginal) [2020-10-04T10:19:59+02:00] view original

  I just posted this question in nimqml's github. Just in case that somebody here is able to answer it:

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  I am trying to understand the abstractitemmodel example.

  I don't get these few lines. When I look at the QAbstractListModel subclassing documentation I am not managing to see where those delete and setup are explained.

  Any help is welcomed. Regards.

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• filcuc (orginal) [2020-10-08T23:37:46+02:00] view original

  I answered in the GitHub issue. That said setup and delete function are basically constructor and destructors. Nim doesnt have the classic OOP features and automatic calls to base class constructors. Thus when subclassing you must make a direct call to the base class constructor (setup in nimqml). Same thing with destructors. I'm not saying that Is nice but that's how It works since nimqml uses inheritance. In future maybe i should rewrite nimqml using a composition design.

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• Stefan_Salewski (orginal) [2020-10-09T08:29:07+02:00] view original

  Funny, so nimqml has some similar tiny issues as gintro has when widgets are subclassed with ARC: https://github.com/StefanSalewski/gintro#extending-or-sub-classing-widgets

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