[Haskell-cafe] Re: [Haskell] ANNOUNCE: first Grapefruit release

Jeff Heard jefferson.r.heard at gmail.com
Mon Feb 16 10:55:18 EST 2009


I would actually quite like to integrate Hieroglyph with Grapefruit,
which would give you your Cairo support and give me a sensible way to
implement events outside of my really rather broken model.

On Mon, Feb 16, 2009 at 10:04 AM, Wolfgang Jeltsch
<g9ks157k at acme.softbase.org> wrote:
> Am Montag, 16. Februar 2009 15:13 schrieben Sie:
>> So I have an application that I am developing. The UI module includes
>> the following:
>>
>> import Graphics.UI.Gtk
>> import Graphics.Rendering.Cairo
>> import Graphics.Rendering.Cairo.SVG
>> import Graphics.UI.Gtk.Gdk.EventM
>>
>> Can you tell from that list if i am likely to be able to rewrite it to
>> use Grapefruit?
>
> No, this won't work at the moment. As I already said, Grapefruit's widget
> support is very restricted at the moment. (And if I say "very" I really mean
> it.) So Grapefruit is worlds apart from what the catch-all Graphics.UI.Gtk
> import provides. And there is no graphics support at the moment, so there is
> nothing equivalent to the Cairo interface. Coming up with a sensible
> purely-functional, toolkit-independent, reactive graphics interface will also
> need some design work.
>
> Until now, I concentrated on getting Grapefruit's core well. This includes a
> scalable FRP implementation, a record system (since you don't want to provide
> an input signal for every attribute of every single widget in practice) and
> support for writing/extending Grapefruit UI backends without writing lots of
> boilerplate code. Providing a wide variety of ready-to-use widgets, graphics
> primitives, etc. is future work which, hopefully, I can delegate largely to
> interested third parties. ;-)
>
> Best wishes,
> Wolfgang
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