I am having a problem while trying to implement the adapter pattern[1], because of signals.
The thing is : I wanna make my application independent of some special component (there are various available that do the same thing, with different interfaces) so I want to wrap their instances a simple interface that is meaningful to my application, but different from that of any component that I may use.
All goes well, the problem is that I would like to keep the flexibility of the signal mechanisms (Allowing clients to connect to the signals before or after the default handler, for instance) but I can't find a way to pass the signals.
This is more or less what I want to have..
Clients A, B, C connects to the "emitted_bar" signal on object of class WO (wrapper object). But I actually want them to listen to the "emitted_foo" signal on object of class UC (used component).
Is it possible to make sure that the signals connected with g_signal_connect on "emitted_bar" will only be triggered before the default handler of "emitted_foo" and those with g_signal_connect_after only after it ?
I know it is weird, but it is just that I need to use the signals and wouldn't like having to change my application whenever I decided to use another, perhaps more powerful, component if they have the same "logical" interface.
Cheers,
Alexandre Moreira.
[1] http://en.wikipedia.org/wiki/Adapter_pattern
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