Em Ter, 2009-05-12 às 15:27 -0300, Maurício escreveu: > >>> class Cast widget where > >>> cast :: GObjectClass obj => obj -> widget > >>> instance Cast Window where > >>> cast = castToWindow > >>> (...) > > > (...) Unless you have a > > very good example where the Cast class would be simpler than a castToFoo > > function, I'd rather not add yet another layer of type classes. > > My package 'gtk2hs-rpn' would use that. Since it's a RPN > calculator for widgets, it uses a stack (list, actually) > of widgets, casted at runtime. I do that using a CanBeCasted > module inside the package.
Good to know you'd use it. I'm planning to work on a module gtk2hs-cast with this Cast class. I'm announce it here when it's ready. Greetings. -- marcot http://marcot.iaaeee.org/ ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ Gtk2hs-devel mailing list Gtk2hs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gtk2hs-devel
