[mcclim-devel] accessing objects in highlight method

[Orm Finnendahl]

Hi,

I'm trying to realize a specialized browser for nested tree structures
(displayed as graphics) using mcclim. I just started to learn clim and
there are quite a few things still unclear to me (I read the paper of
Ciccarelli and most resources I could get a hold of, though).

As a starting point I use the clim-fig example in the demo package and
managed to implement feedback during movement of figures (dragging)
and hooking into the highlight function of the drawing pane.

I need to access the data structure being presented within the context
of the highlight method (invoked on mouse-over). Below is the
highlight method specialized on the figure type of clim-fig. The
"record" arg contains the output-record which seems to maintain a copy
of the graphical representation information of the figure object, but
I have no idea how to access the figure itself or the slots of its
representation in the application frame.

(define-presentation-method highlight-presentation
  ((type figure) record (stream (eql (find-pane-named *application-frame* 'canvas))) (state (eql :highlight)))

...)

Can anybody help?

Thanks,
Orm Finnendahl