Cairo::Surface->create_for_rectangle vs. $surf->create_similar

[Torsten Schoenfeld <kaffeetisch gmx de>]

I recently wrapped cairo_surface_create_for_rectangle for Cairo.  The 
natural syntax seemed to be

  Cairo::Surface->create_for_rectangle($target, $x, $y, $width, $height)

But I now realize that this is at odds with the wrapper for 
cairo_surface_create_similar which was written a long time ago:

  $old->create_similar($content, $width, $height)

But since create_similar() really is a constructor, not a method, I now 
think this would make more sense:

  Cairo::Surface->create_similar($old, ...)

What would you prefer?

  a) wrap cairo_surface_create_for_rectangle as 
$target->create_for_rectangle($target, ...) to maintain similarity with 
create_similar()

  b) wrap cairo_surface_create_for_rectangle as 
Cairo::Surface->create_for_rectangle($target, ...) and make it possible 
to use Cairo::Surface->create_similar($old, ...)¹

¹ In addition to the old syntax, of course.