Re: Differentiating between Connectors and Objects

[Hans Breuer <hans breuer org>]

Am 09.07.2008 19:50, Fred Morcos schrieb:
> Is it possible to get the type of an object without using a returned
> string (object_get_type)? I want to loop over all the selected objects
> and count the number of "connection objects" and the number of "other
> normal objects" without having to go through this:
IMO your definition is not really working because:
 - even connectors are "normal" objects
 - there are "connectors" which are also connectable by connectors,
   e.g. "Standard - Line"
 - there are objects which I think you would classify as "normal object"
   which still can connect: "are connectors" (and are not connectable),
   e.g. "Standard - Text"

> (pseudo code)
> if (objtype == "Standard - Line" || "UML - Generalization" || "UML -
> Dependency" || etc...)
If I had to solve this abstract task I would try *very* hard to not do it 
type specific but property specific. See "Help/Dia Object Types" (otypes.py
in the Dia distribution) for some heuristic.

But for your task "Auto-Layouting" I think you are not really interested in 
 the type difference at all but in the objects use. IMHO there is no point 
in auto-layouting a "connector" if it is not connecting anything.

So basically you want to modify all connected "connectors" given by 
Object.connections[].connected_to

Of course all this is possible in C as well, just more to type.

Regards,
        Hans

-------- Hans "at" Breuer "dot" Org -----------
Tell me what you need, and I'll tell you how to
get along without it.                -- Dilbert