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List:       koffice-devel
Subject:    Re: [Uml-devel] Re: karbon/umbrello
From:       Dirk_Schönberger <dirk.schoenberger () sz-online ! de>
Date:       2003-05-27 19:32:49
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> > > > But how do you want to implement rendering?
> > >
> > > YourVeryOwnRenderingVisitor v.visit( *morph );

> the clean way, yes, but i don't think its going to be very efficient for
> editing applications. for simple generators/exporters this is fine, but
for
> karbon, kivio and umbrello, i don't think that's the best choice. there
> should be some kind of kpainter integration.

> i think for editing or vector graphic manipluation applications you need a
> higher degree of responsiveness in the painting. changes should be
immediate.
> you shouldn't have to re-visit the entire graph just to redraw a single
node.

The problem I see is that you are forced to use OPAL derived classes for
your render / canvas elements
and your document class. Furtheron you are forced to build a tree like
structure in your document.
This may or may not be wanted.

Regards
Dirk





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