Re: patch: handle PS/PDF in Gnus

[Jan Djärv]

Stefan Monnier skrev:
>> I think we need to discuss a platform-independent interface to a
>> printer dialog, before we implement platform-dependent
>> implementations.  Carbon and Gtk+ are not the only platforms that have
>> such dialogs built into the OS APIs.
> 
> Maybe the best solution for that goes as follows:
> 1 - each platform implementer writes a C DEFUN that provides the most
>     obvious and direct interface to the underlying API.
> 2 - we then compare the various resulting interfaces and come up with a Lisp
>     library written on top of it which unifies them into
>     a platform-independent interface.
> 3 - most likely along the way, the unification effort showed that some of
>     the platform-specific implementations can be improved or need to be
>     changed.
> 
> The idea here is that number 1 can be done by each implementer without
> knowing anything else, whereas number 2 can be done by people like myself
> who lack the platform-specific knowledge.
> 

For Gtk+ we can use the GtkPrintDialog, but it requires Gtk+ 2.10 or newer.
It is a bit involved as it needs Emacs to render the data to be printed with
cairo.

        Jan D.