[gtk-list] Re: toggle_button vs check_menu_item

[andrew cogent ca]

Havoc Pennington writes:
[...]
 > In a language such as C++ or Java this would be solved by multiple
 > inheritance, one of the base classes being a "toggleable" interface; but
 > the Gtk+ object system does not permit that yet. So there is an object
 > oriented way to do it in those languages, but without multiple interfaces
 > implementing gtk_widget_set_active() would amount to a switch statement
 > based on object type, which is the antithesis of object orientation. :-)

Your use of the word "yet" in the above paragraph is quite
frightening.  Please do not implement multiple inheritance, interfaces
or any other such esoterica into the basic GTK+ system.  This would
kill foreign language binding possibilities for any language that does
not also implement these functions in similar ways.

Andrew