[gt-users] Attach user data to GtGenomeNodes

[Sascha Steinbiss]

Hi everyone,

it would be nice if there was a possibility to attach (a pointer to) 
arbitrary user data to a GtGenomeNode object. This could be used to pass 
information for which there is no designated property from one stream to 
another. A similar technique is used in the cairo framework 
(http://cairographics.org/manual/cairo-surface.html#cairo-surface-set-user-data) 
in which there are cairo_surface_set_user_data() and 
cairo_surface_get_user_data() methods for exactly that purpose. (I do 
not think we would need their key functionality, just a simple void 
pointer would be enough).

I could need this functionality right now; what do you think about such 
an addition to the GtGenomeNode interface?

Sascha

-- 
Sascha Steinbiss
Center for Bioinformatics
University of Hamburg
Bundesstr. 43
20146 Hamburg
Germany

Email:  steinbiss at zbh.uni-hamburg.de
URL:    http://www.zbh.uni-hamburg.de/steinbiss
Phone:  +49 (40) 42838 7322
FAX:    +49 (40) 42838 7312