Re: [java-gnome-hackers] Adding switch-page signal

[Andrew C. <an...@op...>]

On Mon, 2009-02-16 at 20:30 +0100, Stefan Schweizer wrote:
> I am attaching a bundle with what I have
> so far, also a test that currently fails.

You're a star.

> Uncommenting the debug message reveals the following:
> Java method receiveSwitchPage
> with signature (Lorg/gnome/glib/Signal;JI)V
> to handle signal switch-page
> 
> So the page parameter is missing? I have no idea.

Wow. That is weird. Of all the things I expected to see, that was
certainly not it.

I mean, in essence, that's what we _want_ it to be, right? With that as
the signature we're being handed we could just edit that parameter out
of the (define-virtual) and it'd work, and no need for the private
handler class anything to trim the parameter. Which would be great.

So we're done!

Except for one thing.

I don't know why we're getting handed a parameter sequence that is
resulting in us calculating that signature. Where's the GtkNotebookPage*
parameter?

My guesses are that either,

a) something in GTK is acting to hide that parameter (unlikely, given
that pygtk see it). I read the source code in GTK for gtk/gtknotebook.c
and I don't see anything changing the signal at registration or emission
time.

or

b) something in our signal marshaling code is choking and causing us to
skip that parameter. That'd be good if we were doing it on purpose.

If we can work out which it is, then we can probably sort this out.

There's still a lingering doubt about whether this signal is actually
supposed to be public. Unfortunately GLib × gtkdoc doesn't have a
mechanism for not presenting signals that are actually internal.

AfC
Sydney

P.S. No need to address me as well. I'm subscribed to the mailing list.



> 
> 	Stefan
> ------------------------------------------------------------------------------
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