[Pypentago-devel] New hooks system.

[Florian M. <flo...@ai...>]

Good day,
Locally, I have been reimplementing the connection between the network
interface and the graphical interface using simple variables that the
GUI assigns functions or methods to, which are called when needed.

Although this works pretty well, we might have scalability issues,
because this rather limits us later on when we want to bind multiple
handlers to one actions. Of course a workaround would be to write and
pass a function that calls all of these handlers, but this is rather hacky.

So I have been developing a 'hooks' module, which I am probably going to
rename to 'actions' or 'handlers', to make it more clear what it does.
For more informations of this terminology please see 'hooks.py' in
trunk/src/pypentago.

This module allows us to bind multiple handlers to one event. I have
been trying to put a lot of design in it, although it might not seem so
at a first glance at the source code. It is difficult to let both the
registrar and the emitter pass data to the handler, but I think I have
chosen a system that should work.

Nevertheless it is still work in process and I think that I will change
the API some times, if I think it would be better.

Best regards,
Florian Mayer
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