Re: Gtk2::PrintOperation

[Torsten Schoenfeld <kaffeetisch gmx de>]

On 07.08.2010 09:30, Emmanuele Bassi wrote:
> > Thanks for the help. This line got me one step further:
> >
> >    Gtk2::Gdk::Cairo::Context::set_source_pixbuf( $cr, $pixbuf, 0, 0 );
> >
> > Why isn't set_source_pixbuf in Cairo::Context?
>
> well, Cairo doesn't know anything about GdkPixbufs, so perl-Gtk2 has to
> "sub-class" the Cairo::Context by adding a Gtk2::Gdk::Cairo::Context
> type to its @ISA. while perl-Gtk2 does it for the one returned by
> Gtk2::Gdk::Cairo::create(), it doesn't do it for the one created by the
> Gtk2::PrintContext API[0].

We could, however, adjust the xsub for 
gtk_print_context_get_cairo_context such that it re-bless()-es the cairo 
context into the Gtk2::Gdk::Cairo package.  It looks like every method 
in Gtk2::Gdk::Cairo can be safely called on any kind of context (or, 
rather, any context with any kind of surface).  Patches welcome.