Re: some quetsions about features and plugins

[Hans Breuer <hans breuer org>]

Am 10.06.2008 13:31, Marleine Daoud schrieb:
> Dear Responsible,
>
> I would like to develop a plugin for Dia that would explore diagrams with
> the help of filtering, highlighting and searching shapes based on certain
> attributes, and also another plugin for    comparing diagrams and versioning
> diagrams like it is done in svn for example.
>
> Can you please inform me if this can be possible with Dia  or not?
Given that all source code of Dia is available it certainly is possible ;-)
But serious: It depends ony you definition of "filtering, highlighting and 
searching shapes" if it is possible to implement with the *current* plug-in
interfaces. Prototyping something e.g. with Python plug-ins for Dia work 
quite well for me in the last years.

If I understood your second idea right you want a "visual diff". It depends 
on the kind of visualization planned if this can be implemented as plug-in. 
One appraoch could be to create a new "difference diagram", that would be 
possible.
Something like blending the two version of a diagram into one would require 
modifications of the rendering algorithms use, not possible without 
modifying the core.
 > Also is there a clear list with all the features currently in Dia and all
> the future plans?
Not really. Basically it is like in all volunteers projects. Something gets 
done when somebody does it.

Regards,
        Hans

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