GCompris in sugar ?

[Marco Pesenti Gritti]

On Fri, 2007-02-02 at 00:14 +0100, Bruno Coudoin wrote:
> Le jeudi 01 février 2007 à 17:09 -0500, Marco Pesenti Gritti a écrit :
> > On Thu, 2007-02-01 at 21:15 +0100, Yves Combe wrote:
> > I guess my question is... would it possible to integrate GCompris, or
> > some of the GCompris boards with sugar as activities (which doesn't
> > necessarily imply mesh support)?
> > I think it's by far a more interesting question, and I'd love to see it
> > happen.
> 
> If you have the gnomecanvas and it's python bindings,

We don't currently. But I personally think they would be a worthy
additions if it can get us GCompris based activities (unless it has
unreasonable dependencies)

>  then one approach
> could be to port GCompris python boards as sugar activity. This means,
> also creating a subset of the GCompris core in python.
> 
> Let's take a real exemple, the electric activity
> (src/boards/python/electric.py):
> http://gcompris.net/en-electric
> 
> This activity requires the gnucap binary, the python gnomecanvas and
> calls these functions from the GCompris core:
> 
> gcompris.bar_set()
> gcompris.bar_set_level()
> Our control bar is part of the core, we use it display the difficulty
> level. The bar could be rewritten in python or removed and we could
> replace this by sugar interactions.
> 
> 
> gcompris.set_background()
> This set the background image. its a couple lines of code to rewrite
> this in python.
> 
> gcompris.utils.load_pixmap() (90% of the calls)
> The most used function, it just load an image from disk. One line in
> python to do the same.
> 
> gcompris.skin.image_to_skin()
> We have a skin system, that can be simply skipped by using fixed path in
> image loading.
> 
> gcompris.utils.dialog()
> Display an image that looks like a modal dialog box. easy to rewrite one
> but can be removed, it's mostly use for error case that should not
> happen on a close system like the olpc. There is perhaps a central
> console in sugar that could get these messages.
> 
> gcompris.bonus.board_finished()
> Display a cute image as a bonus, can be rewrite easily or removed.
> 
> gcompris.set_cursor()
> It's a few lines of code in C/GTK to to this, it is probably more easy
> to do in python. Can be skipped.
> 
> 
> As you see, we are not so dependent on GCompris core. Just providing a
> python load_pixmap() equivalent and commenting the other functions
> should be enough to have a functional and independent electricity
> activity.
> 
> Clearly, this path is a fork and we won't share code but if this can
> bring some nice activities to the OLPC, on our side, we will support
> you.
> 
> There is another slightly different approach, we could add a native
> python GCompris core API so that we will stay close in most cases.
> 

This makes sense to me as a general approach. Though the closer we can
stay the better.

Marco