[Sugar-devel] [ANNOUNCE] Toolkit in Vala

[Tomeu Vizoso]

On Mon, Jan 11, 2010 at 18:33, Aleksey Lim <alsroot at member.fsf.org> wrote:
> On Mon, Jan 11, 2010 at 12:22:25PM -0500, Wade Brainerd wrote:
>> On Mon, Jan 11, 2010 at 12:20 PM, Peter Robinson <pbrobinson at gmail.com> wrote:
>> > On Mon, Jan 11, 2010 at 5:16 PM, Wade Brainerd <wadetb at gmail.com> wrote:
>> >> On Mon, Jan 11, 2010 at 12:09 PM, Peter Robinson <pbrobinson at gmail.com> wrote:
>> >>> On Mon, Jan 11, 2010 at 4:55 PM, Wade Brainerd <wadetb at gmail.com> wrote:
>> >>>> On Mon, Jan 11, 2010 at 11:30 AM, Aleksey Lim <alsroot at member.fsf.org> wrote:
>> >>>>> Hi all,
>> >>>>>
>> >>>>> While packagin GCompris-9 for sugar, it was decided to have sugar
>> >>>>> native toolbas for GCompris in sugar environment.
>> >>>>>
>> >>>>> So, instead of coding them in plain C, new project was initiated to port
>> >>>>> sugar-toolkit to Vala[1]
>> >>>>> http://git.sugarlabs.org/projects/toolkit
>> >>>>> At some point we can completely switch from python sugar-toolkit to
>> >>>>> Vala based project.
>> >>>>
>> >>>> Wow!!
>> >>>>
>> >>>> I think even for Python based activities, having the Sugar toolkit
>> >>>> written in C will decrease activity startup time.
>> >>>>
>> >>>> And for non-Python activities, it will finally be possible to use
>> >>>> native Sugar widgets such as the toolbar.
>> >>>>
>> >>>> I presume the plan is to use 0install to download the Vala toolkit?
>> >>>
>> >>> Not sure how that would work. Vala generates C code which then needs
>> >>> to be compiled. It doesn't provide any advantage to your average end
>> >>> user its just another way to develop C code.
>> >>
>> >> Ah, I was assuming that the generated C code would then be compiled
>> >> into a shared library that could be exported to Python and other
>> >> languages, thus providing first class support to languages like Mono
>> >> and Ruby and also providing faster-loading Python bindings than what
>> >> we have now.
>> >
>> > No, it just generates the C code which is then compiled by gcc. See
>> > http://live.gnome.org/Vala for further details.
>>
>> Oh; I get that.  I was just wondering what Aleksey planned to do with
>> the C code once generated.  It sounds like he's just added it directly
>> the GCompris makefiles.
>
> not exactly, http://git.sugarlabs.org/projects/toolkit is just regular
> autotools C based project, which has additional generation stage
> (.vala -> .c/.h), the output library will be just regular .so accessible
> in GCompris via pkg-config.

You can easily generate introspection information for a vala lib,
which could then be used by all languages with gobject-introspection
bindings (hint!).

Regards,

Tomeu

>>
>> Best,
>> Wade
>>
>
> --
> Aleksey
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