Re: gEDA: gschem -- menu callbacks/actions in scheme?

[Ales Hvezda <ahvezda@xxxxxxxx>]

Hi Dan,

[snip]
>This a question for those with better knowledge of gschem internals.
>
>I see where system-gschemrc defines all of the menus, but what I'm 
>wondering is if it is possible to write a callback entirely within 
>scheme.  In other words I want to have my gschemrc load my own scheme 
>file which will have something like:
>(add-menu "MyMenu" my:menu-items)
>
>but I want to write the my-about, my-manual, my-menuitem actions in 
>scheme.
>
>Anyone know if this is possible with the current gschem or what it might 
>take to be able to do this?
>
[snip]
	This should be quite possible.  Are you having trouble with
your implementation?  I looked at the diffs, I didn't see anything 
glaring wrong (just a quick quick quick look).


>I'm thinking it might be useful to link in with guile-gtk too so users 
>could hook in gui stuff into their own menu choices.
>
>Any suggestions?


	This might be tricky with guile-gtk.  I don't know what state these
bindings are in.  The last time I looked guile-gtk was only for gtk+ 1.2.x.
However, it looks like guile-gnome might be more current.  I would hate
to introduce a forced dependancy on gnome.


>
>Where I'm going with this is I want to have a standalone scheme file 
>which if loaded, puts gschem into "pcb mode" where you get an extra menu 
>with things like "run gsch2pcb" or "launch pcb" or (eventually) 
>"backannotate".  By adding some hooks into gschem I've been able to 
>actually have a gschem session talk to a pcb session and do some cross 
>probing (i.e. select an element in the schematic and have it 
>automatically be selected in layout) but for it to work smoothly I 
>really could use the customizable menu stuff I'm asking about here.
>
>By isolating all pcb related stuff into a pcb scheme file, I'm hoping we 
>could support other modes like "spice mode" where you'd have a menu for 
>spice stuff or "cascade mode" where you'd have a menu for cascade designs.

	Neat.  I'm all of this if it can be contained and doesn't 
introduce too many forced dependancies.  That might turn out to be tricky.

								-Ales