2009/12/27 Julian <jul...@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@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ktechlab-devel >
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