source file of the GNU LilyPond music typesetter
- (c) 2000--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 2000--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "spaceable-grob.hh"
#include "pointer-group-interface.hh"
#include "grob.hh"
#include "paper-column.hh"
+#include "international.hh"
SCM
Spaceable_grob::get_minimum_distances (Grob *me)
}
void
-Spaceable_grob::get_spring (Grob *me, Grob *other, Real *dist, Real *inv_strength)
+Spaceable_grob::get_spring (Grob *this_col, Grob *next_col, Real *dist, Real *inv_strength)
{
- for (SCM s = me->get_object ("ideal-distances");
- scm_is_pair (s); s = scm_cdr (s))
+ Spring_smob *spring = 0;
+
+ for (SCM s = this_col->get_object ("ideal-distances");
+ !spring && scm_is_pair (s);
+ s = scm_cdr (s))
{
- Spring_smob *spring = unsmob_spring (scm_car (s));
- if (spring && spring->other_ == other)
- {
- *dist = spring->distance_;
- *inv_strength = spring->inverse_strength_;
- }
+ Spring_smob *sp = unsmob_spring (scm_car (s));
+
+ if (sp && sp->other_ == next_col)
+ spring = sp;
}
-}
-void
-Spaceable_grob::remove_interface (Grob *me)
-{
- me->set_object ("minimum-distances", SCM_EOL);
- me->set_object ("spacing-wishes", SCM_EOL);
- me->set_object ("ideal-distances", SCM_EOL);
+ if (!spring)
+ programming_error (_f ("No spring between column %d and next one",
+ Paper_column::get_rank (this_col)));
+
+ *dist = (spring) ? spring->distance_ : 5.0;
+ *inv_strength = (spring) ? spring->inverse_strength_ : 1.0;
}
+
+
ADD_INTERFACE (Spaceable_grob,
"A layout object that takes part in the spacing problem. ",