/*
- axis-group-interface-scheme.cc -- implement Axis_group_interface
+ axis-group-interface-scheme.cc -- implement Axis_group_interface bindings
source file of the GNU LilyPond music typesetter
- (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
-
+ (c) 2005--2006 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.")
+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.")
{
- SCM_ASSERT_TYPE(scm_is_pair (elements), elements, SCM_ARG1, __FUNCTION__, "list");
- SCM_ASSERT_TYPE(unsmob_grob (common), common, SCM_ARG2, __FUNCTION__, "grob");
- SCM_ASSERT_TYPE(is_axis (axis), axis, SCM_ARG3, __FUNCTION__, "axis");
+ Grob_array *ga = unsmob_grob_array (elements);
+
+ SCM_ASSERT_TYPE (ga || scm_is_pair (elements), elements, SCM_ARG1, __FUNCTION__, "list or Grob_array");
+ SCM_ASSERT_TYPE (unsmob_grob (common), common, SCM_ARG2, __FUNCTION__, "grob");
+ SCM_ASSERT_TYPE (is_axis (axis), axis, SCM_ARG3, __FUNCTION__, "axis");
+ 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 (elements,
+ Interval ext = Axis_group_interface::relative_group_extent (ga ? ga->array () : elts,
unsmob_grob (common),
(Axis) scm_to_int (axis));
return ly_interval2scm (ext);
}
-
-
+