[Kde-bindings] Qyoto Delegate Patch

[Arno Rehn]

Hi,

based on the discussion Richard and I had at akademy about signals mapping 
onto delegates, I hacked kalyptus to generate generic delegates but keep the 
various overloaded 'Connect' methods. In my opinion it's simply the less 
ugliest possibility.

Now you can say:
Connect(button, SIGNAL("clicked(bool)"), delegate(bool b) {
	Console.WriteLine("Bool {0}", b);
});

or
button.AddClickedHandler(delegate(bool b) {
	Console.WriteLine("Bool {0}", b);
});

Instead of an anonymous delegate you could of course give a normal method to 
the functions.

The other possibility would have been to make also the Connect method generic, 
which would then look like this:
Connect<bool>(button, SIGNAL("clicked(bool)"), delegate(bool b) {
	Console.WriteLine("Bool {0}", b);
});

With this version we would have to check what delegate type the programmer 
actually used and then connect to the appropiate imternal slot. So the actual 
amount of code generated wouldn't decrease, we'd only have less 
overloaded 'Connect' methods.
Personally spoken, I think the first version without a generic Connect is much 
nicer.
I uploaded a patch here since it's quite a large one: 
http://pumphaus.kilu.de/programming/delegate_patch.patch
It also adds a new option to the CMakeLists.txt with which you can 
enable/disable the new experimental API (ENABLE_QYOTO_EXPERIMENTAL, disabled 
by default). Patch from the top level kdebindings directory, with -p0.

-- 
Arno Rehn
arno at arnorehn.de