#include "spaceable-grob.hh"
#include "grob.hh"
#include "warn.hh"
+#include "spring.hh"
+#include "group-interface.hh"
SCM
Spaceable_grob::get_minimum_distances (Grob*me)
}
void
-Spaceable_grob::add_spring (Grob*me, Grob * p, Real d, Real strength)
+Spaceable_grob::add_spring (Grob*me, Grob * p, Real d, Real strength, bool expand_only)
{
- SCM mins = me->get_grob_property ("ideal-distances");
-
+ if (d < 0.0 || strength <= 0.0)
+ {
+ programming_error ("Adding reverse spring!");
+ }
- SCM newdist= gh_double2scm (d);
+#ifndef NDEBUG
+ SCM mins = me->get_grob_property ("ideal-distances");
for (SCM s = mins; gh_pair_p (s); s = ly_cdr (s))
{
- SCM dist = ly_car (s);
- if (ly_car (dist) == p->self_scm ())
+ Spring_smob * sp = unsmob_spring(ly_car (s));
+ if (sp->other_ == p)
{
programming_error ("already have that spring");
return ;
}
}
- SCM newstrength= gh_double2scm (strength);
+#endif
+
+ Spring_smob spring;
+ spring.strength_f_ = strength;
+ spring.distance_f_ = d;
+ spring.expand_only_b_ = expand_only;
+ spring.other_ = p;
- mins = gh_cons (gh_cons (p->self_scm (), gh_cons (newdist, newstrength)), mins);
- me->set_grob_property ("ideal-distances", mins);
+ Group_interface::add_thing (me, ly_symbol2scm ("ideal-distances"), spring.smobbed_copy ());
}
}
-void
-Spaceable_grob::set_interface (Grob*me)
-{
- me->set_interface (ly_symbol2scm ("spaceable-grob-interface"));
-}
+ADD_INTERFACE (Spaceable,"spaceable-grob-interface",
+ "An grob (a Paper_column) that takes part in the
+spacing problem. ",
+ "measure-length penalty minimum-distances ideal-distances
+left-neighbors right-neighbors");
+