[Sugar-devel] GSoC update: Groupthink demo

[Walter Bender]

Cool icon!!!

Anyone wanna join me in the activity?

-walter

On Mon, Jun 1, 2009 at 11:50 PM, Benjamin M. Schwartz
<bmschwar at fas.harvard.edu> wrote:
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> I have produced a new demo activity, available at
> http://dev.laptop.org/~bemasc/SharedTextDemo-1.xo .  It is a shared text
> editing activity, running over the usual Telepathy collaboration system.
> It does not save files.  It does not offer colors or fonts or any of the
> richness of Write.  It is very slow, and probably buggy.  SharedTextDemo
> is of interest only to developers, at present.  However, it is, I hope
> very interesting to them.
>
> SharedTextDemo uses an operational transformation engine that I have been
> developing for several months, to provide completely decentralized,
> asynchronous, reliable document editing.  Its algorithms are related to
> those used by Google Wave, though surely less highly developed, and likely
> much less efficient.
>
> The editing algorithms are not my favorite aspect of the activity.  My
> favorite thing about it is the API.  The following is the entirety of the
> main .py file:
>
> """
> from groupthink import sugar_tools, gtk_tools
> import sugar
>
> SERVICE = "org.sugarlabs.SharedTextDemo"
>
> class SharedTextDemoActivity(sugar_tools.GroupActivity):
>    def __init__(self, handle):
>        super(SharedTextDemoActivity, self).__init__(handle, SERVICE)
>
>        toolbox = sugar.activity.activity.ActivityToolbox(self)
>        self.set_toolbox(toolbox)
>        toolbox.show()
>
>        self.cloud.textview = gtk_tools.SharedTextView()
>        self.set_canvas(self.cloud.textview)
>        self.show_all()
> """
>
> 12 nonblank lines, total.  Everything else is provided by the library.
> Adding a shared TextView to an existing activity takes arguably a single line.
>
> Groupthink is available at http://dev.laptop.org/git/projects/dobject/
>
> - --Ben Schwartz
>
> Groupthink: Collaboration should be easy.
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-- 
Walter Bender
Sugar Labs
http://www.sugarlabs.org