-/*
- axis-group-interface-scheme.cc -- implement Axis_group_interface bindings
-
- source file of the GNU LilyPond music typesetter
-
- (c) 2005--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
-*/
-
-#include "axis-group-interface.hh"
-#include "lily-guile.hh"
-#include "grob.hh"
-#include "grob-array.hh"
-
-LY_DEFINE (ly_relative_group_extent, "ly:relative-group-extent",
- 3, 0, 0, (SCM elements, SCM common, SCM axis),
- "Determine the extent of @var{elements} relative to @var{common} in the"
- " @var{axis} direction.")
-{
- Grob_array *ga = unsmob_grob_array (elements);
-
- SCM_ASSERT_TYPE (ga || scm_is_pair (elements), elements, SCM_ARG1, __FUNCTION__, "list or Grob_array");
- LY_ASSERT_SMOB (Grob, common, 2);
- LY_ASSERT_TYPE (is_axis, axis, 3);
-
- vector<Grob*> elts;
- if (!ga)
- {
- for (SCM s = elements; scm_is_pair (s); s = scm_cdr (s))
- elts.push_back (unsmob_grob (scm_car (s)));
- }
-
- Interval ext = Axis_group_interface::relative_group_extent (ga ? ga->array () : elts,
- unsmob_grob (common),
- (Axis) scm_to_int (axis));
- return ly_interval2scm (ext);
-}
-