source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+#include <math.h> // ceil
+#include "axis-group-interface.hh"
#include "note-column.hh"
+#include "stem.hh"
#include "debug.hh"
-#include "script.hh"
+#include "paper-def.hh"
+#include "group-interface.hh"
+#include "staff-symbol-referencer.hh"
+#include "rest.hh"
#include "note-head.hh"
-#include "stem.hh"
-IMPLEMENT_STATIC_NAME(Note_column);
+bool
+Note_column::rest_b (Grob*me)
+{
+ return unsmob_grob (me->get_grob_property ("rest"));
+}
-void
-Note_column::add(Stem*stem_l)
+int
+Note_column::shift_compare (Grob *const &p1, Grob *const&p2)
{
- stem_l_ = stem_l;
- add_support(stem_l);
+ SCM s1 = p1->get_grob_property ("horizontal-shift");
+ SCM s2 = p2->get_grob_property ("horizontal-shift");
+
+ int h1 = (gh_number_p (s1))? gh_scm2int (s1) :0;
+ int h2 = (gh_number_p (s2)) ? gh_scm2int (s2):0;
+ return h1 - h2;
}
void
-Note_column::add(Note_head* n_l)
+Note_column::set_interface (Grob* me)
{
- assert(!n_l->rest_b_);
- head_l_arr_.push(n_l);
- add_support(n_l);
+ me->set_interface (ly_symbol2scm ("note-column-interface"));
+
+ Axis_group_interface::set_interface (me);
+ Axis_group_interface::set_axes (me, X_AXIS, Y_AXIS);
}
-Note_column::Note_column()
+Item *
+Note_column::stem_l (Grob*me)
{
- stem_l_ = 0;
- h_shift_b_ =false;
- dir_i_ =0;
+ SCM s = me->get_grob_property ("stem");
+ return dynamic_cast<Item*> (unsmob_grob (s));
}
-
-void
-Note_column::sort()
+
+Slice
+Note_column::head_positions_interval (Grob *me)
{
- head_l_arr_.sort( Note_head::compare);
+ Slice iv;
+
+ iv.set_empty ();
+
+ SCM h = me->get_grob_property ("note-heads");
+ for (; gh_pair_p (h); h = ly_cdr (h))
+ {
+ Grob *se = unsmob_grob (ly_car (h));
+
+ int j = int (Staff_symbol_referencer::position_f (se));
+ iv.unite (Slice (j,j));
+ }
+ return iv;
}
-
-Interval_t<int>
-Note_column::head_positions_interval()const
+
+Direction
+Note_column::dir (Grob* me)
{
- ( (Note_column*)this)->sort();
- return Interval_t<int> ( head_l_arr_[0]->position_i_,
- head_l_arr_.top()->position_i_);
+ Grob *stem = unsmob_grob (me->get_grob_property ("stem"));
+ if (stem && Stem::has_interface (stem))
+ return Stem::get_direction (stem);
+ else if (gh_pair_p (me->get_grob_property ("note-heads")))
+ return (Direction)sign (head_positions_interval (me).center ());
+ programming_error ("Note column without heads and stem!");
+ return CENTER;
}
void
-Note_column::do_pre_processing()
+Note_column::set_stem (Grob*me,Grob * stem_l)
{
- if (!dir_i_){
- if (stem_l_)
- dir_i_ = stem_l_->dir_i_;
- else
- dir_i_ = (head_positions_interval().center() >= 5) ? -1 : 1;
- }
+ me->set_grob_property ("stem", stem_l->self_scm ());
+ me->add_dependency (stem_l);
+ Axis_group_interface::add_element (me, stem_l);
}
-
+void
+Note_column::add_head (Grob*me,Grob *h)
+{
+ if (Rest::has_interface (h))
+ {
+ me->set_grob_property ("rest", h->self_scm ());
+ }
+ else if (Note_head::has_interface (h))
+ {
+ Pointer_group_interface::add_element (me, ly_symbol2scm ("note-heads"),h);
+ }
+ Axis_group_interface::add_element (me, h);
+}
+/**
+ translate the rest symbols vertically by amount DY_I.
+ */
void
-Note_column::do_substitute_dependency(Score_elem*o,Score_elem*n)
+Note_column::translate_rests (Grob*me,int dy_i)
{
- Script_column::do_substitute_dependency(o,n);
- if (o->name() == Note_head::static_name()) {
- head_l_arr_.substitute( (Note_head*)o->item(),
- (n)? (Note_head*)n->item() : 0);
+ Grob * r = unsmob_grob (me->get_grob_property ("rest"));
+ if (r)
+ {
+ r->translate_axis (dy_i * Staff_symbol_referencer::staff_space (r)/2.0, Y_AXIS);
}
- if (stem_l_ == o) {
- stem_l_ = n ? (Stem*)n->item():0;
+}
+
+
+void
+Note_column::set_dotcol (Grob*me,Grob *d)
+{
+ Axis_group_interface::add_element (me, d);
+}
+
+
+
+
+Grob*
+Note_column::first_head (Grob*me)
+{
+ Grob * st = stem_l (me);
+ return st? Stem::first_head (st): 0;
+}
+
+bool
+Note_column::has_interface (Grob*me)
+{
+ return me && me->has_interface (ly_symbol2scm ("note-column-interface"));
+}
+
+/*
+ Return the first Accidentals grob that we find in a note-head.
+ */
+Grob*
+Note_column::accidentals (Grob *me)
+{
+ SCM heads = me->get_grob_property ("note-heads");
+ for (;gh_pair_p (heads); heads =gh_cdr (heads))
+ {
+ Grob * h = unsmob_grob (gh_car (heads));
+ Grob *a = h ? unsmob_grob(h->get_grob_property ("accidentals")) : 0;
+ if (a)
+ return a;
}
+
+ return 0;
}