source file of the GNU LilyPond music typesetter
- (c) 2005--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 2005--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "tie-column-format.hh"
-ADD_INTERFACE(Semi_tie_column,
- "The interface for a column of l.v. ties.",
+ADD_INTERFACE (Semi_tie_column,
+ "The interface for a column of l.v. (laissez vibrer) ties.",
/* properties */
"positioning-done "
/*
Cut & paste from tie-column.cc
*/
-MAKE_SCHEME_CALLBACK(Semi_tie_column, calc_positioning_done, 1);
+MAKE_SCHEME_CALLBACK (Semi_tie_column, calc_positioning_done, 1);
SCM
Semi_tie_column::calc_positioning_done (SCM smob)
{
problem.set_manual_tie_configuration (manual_configs);
Ties_configuration base = problem.generate_optimal_configuration ();
- for (vsize i = 0; i < lv_ties.size(); i++)
+ for (vsize i = 0; i < lv_ties.size (); i++)
{
SCM cp = Tie::get_control_points (lv_ties[i], problem.common_x_refpoint (), base[i],
problem.details_);
return SCM_BOOL_T;
}
+MAKE_SCHEME_CALLBACK (Semi_tie_column, calc_head_direction, 1);
+SCM
+Semi_tie_column::calc_head_direction (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ extract_grob_set (me, "ties", ties);
+ Direction d = LEFT;
+ for (vsize i = 0; i < ties.size (); i++)
+ {
+ Direction this_d = to_dir (ties[i]->get_property ("head-direction"));
+ if (i > 0 && d != this_d)
+ {
+ programming_error ("all semi-ties in a semi-tie-column should have the same head-direction");
+ return scm_from_int (d);
+ }
+ d = this_d;
+ }
+ return scm_from_int (d);
+}