Re: guile-gtk

[Andy Wingo]

Hey Bill,

On Wed, 2004-11-17 at 06:05 -0800, Bill Schottstaedt wrote:
> Another choice is libxm which has support for all versions
> of gtk since 2.0.

It's a different choice indeed, a bit closer to the C.

Some libxm examples from snd-gtk.scm:

  (gtk_range_set_update_policy (GTK_RANGE (GTK_SCALE scale))
                               GTK_UPDATE_CONTINUOUS)

  (g_signal_connect_closure_by_id
   (GPOINTER adj)
   (g_signal_lookup "value_changed" (G_OBJECT_TYPE (GTK_OBJECT adj)))
   0
   (g_cclosure_new
    (lambda (w d) (func (.value (GTK_ADJUSTMENT adj)))) #f #f) #f)))

The same code in guile-gnome would be:

  (set-update-policy scale 'continuous)
  ;; you could use the full name, gtk-range-set-update-policy
  ;; or, with gobject properties, (set scale 'update-policy 'continuous)

  (connect adj 'value-changed
           (lambda (x) (func (gtk-adjustment:value adj)) #f))

So on the one hand, guile-gnome feels more schemey, but on the other,
gtk-adjustment:value doesn't actually exist right now (GtkAdjustment
needs more love). In libxm everything that you have in C should be
available in scheme without extra love.

Regards,
-- 
Andy Wingo <address@hidden>
http://ambient.2y.net/wingo/