[Ktechlab-devel] Some UML-like diagrams

[Zoltan Padrah]

2009/12/27 Julian <julian at svg4all.de>

> moin,
>
> On Sunday 27 December 2009 13:21:38 Zoltan Padrah wrote:
> > here are some diagrams about how I imagine the kde4 port's document
> should
> > work like:
> >
> >
> http://sourceforge.net/userapps/trac/zoltan_padrah/wiki/KtechlabDocumentPro
> > posed
> Just a short note on the flow-code structure. The "container" Items
> (ForLoopItem and WhileLoopItem) must be derived from QGraphicsItem. We
> should
> sub-class QGraphicsItem and implement QGraphicsItem::dropEvent to handle
> dropping of flow-code elements. QGraphicItems can have children, which can
> be
> painted "inside" the parent Item. (All coordinates are relative to the
> parents
> coordinates.) Qt handles all this, we just need to implement the handler
> for
> the dropEvent.
> This is just a minor implementation issue, but it should be changed. A
> QGraphicsView can only have one QGraphicsScene at a time. And a Scene can't
> contain a Scene. (As I said, this is handled by the QGraphicsItems, which
> can
> have children and provide some sort of "nested" setup.
>

You're right, the diagrams are not correct.

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.

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
>
>
> ------------------------------------------------------------------------------
> This SF.Net email is sponsored by the Verizon Developer Community
> Take advantage of Verizon's best-in-class app development support
> A streamlined, 14 day to market process makes app distribution fast and
> easy
> Join now and get one step closer to millions of Verizon customers
> http://p.sf.net/sfu/verizon-dev2dev
> _______________________________________________
> Ktechlab-devel mailing list
> Ktechlab-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/ktechlab-devel
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/ktechlab-devel/attachments/20091227/1b3afd29/attachment.html>