[Ktechlab-devel] Some UML-like diagrams
Axel Jäger
axel.jaeger at basyskom.de
Sun Dec 27 22:52:09 UTC 2009
> We could inherit ForLoopItem from QWidget (or more specifically from some frame), then embed it into the scene with the addWidget method (
> http://doc.trolltech.com/4.5/qgraphicsscene.html#addWidget
> ), and insert in the frame a new graphics scene. The details of this should be worked out.
>
No, please do not embed QWidgets in a QGraphicsScene. This is just a migration thing to be able to mix old widget based code with new QGraphicsItem-based code. For new things that should live in a QGraphicsScene, subclass either QGraphicsItem or QGraphicsWidget if you want something like a widget.
Embedding classic QWidgets in a GraphicsScene suffers from performance problems and funny effects because there is now 2 trees: The object and the item tree and they fight against each other.
Feel free to ask me any questions about that topic.
Axel
> Another issue to be discussed is how should we split the source code; what kind of plugins do we want to create. Should there be a dependency between plugins?
>
>
>
> bye then
> julian
>
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