2006-06-12  Matthias Clasen  <mclasen@redhat.com>

	* gtk/gtkprintunixdialog.c (is_printer_active): Use
	gtk_printer_accepts_ps here.

	* modules/printbackends/pdf/gtkprintbackendpdf.c (gtk_print_backend_pdf_init):
	Mark the virtual "Print to PDF" printer as not accepting PS.

	* gtk/gtk.symbols:
	* gtk/gtkprinter.h:
	* gtk/gtkprinter.c: Add two new properties accepts-pdf and
	accepts-ps (with getters) to allow learning supported formats.