/*
note-column.cc -- implement Note_column
- source file of the LilyPond music typesetter
+ source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-
+#include "dot-column.hh"
#include "note-column.hh"
-#include "debug.hh"
-#include "script.hh"
-#include "notehead.hh"
+#include "beam.hh"
+#include "note-head.hh"
#include "stem.hh"
+#include "rest.hh"
+#include "debug.hh"
+#include "paper-def.hh"
+#include "group-interface.hh"
+#include "staff-symbol-referencer.hh"
+
+bool
+Note_column::rest_b () const
+{
+ SCM r = get_elt_property ("rests");
+
+ return gh_pair_p (r);
+}
+
+int
+Note_column::shift_compare (Note_column *const &p1, Note_column*const&p2)
+{
+ SCM s1 = p1->get_elt_property ("horizontal-shift");
+ SCM s2 = p2->get_elt_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;
+}
+
+Note_column::Note_column()
+{
+ set_elt_property ("rests", SCM_EOL);
+ set_elt_property ("note-heads", SCM_EOL);
+ set_axes (X_AXIS, Y_AXIS);
+}
+
+Stem *
+Note_column::stem_l () const
+{
+ SCM s = get_elt_property ("stem");
+ return dynamic_cast<Stem*> (unsmob_element (s));
+
+}
+
+
+Slice
+Note_column::head_positions_interval() const
+{
+ Slice iv;
+
+ iv.set_empty ();
+
+ SCM h = get_elt_property ("note-heads");
+ for (; gh_pair_p (h); h = gh_cdr (h))
+ {
+ Score_element *se = unsmob_element (gh_car (h));
+ Staff_symbol_referencer_interface si (se);
+
+ int j = int (si.position_f ());
+ iv.unite (Slice (j,j));
+ }
+ return iv;
+}
+
+Direction
+Note_column::dir () const
+{
+ if (stem_l ())
+ return stem_l ()->get_direction ();
+ else if (gh_pair_p (get_elt_property ("note-heads")))
+ return (Direction)sign (head_positions_interval().center ());
+
+ programming_error ("Note column without heads and stem!");
+ return CENTER;
+}
-IMPLEMENT_STATIC_NAME(Note_column);
void
-Note_column::add(Stem*stem_l)
+Note_column::set_stem (Stem * stem_l)
{
- stem_l_ = stem_l;
- add_support(stem_l);
+ set_elt_property ("stem", stem_l->self_scm_);
+
+ add_dependency (stem_l);
+ add_element (stem_l);
}
+
+
void
-Note_column::add(Notehead* n_l)
+Note_column::add_head (Rhythmic_head *h)
{
- assert(!n_l->rest_b_);
- head_l_arr_.push(n_l);
- add_support(n_l);
+ if (Rest*r=dynamic_cast<Rest *> (h))
+ {
+ Group_interface gi (this, "rests");
+ gi.add_element (h);
+ }
+ if (Note_head *nh=dynamic_cast<Note_head *> (h))
+ {
+ Group_interface gi (this, "note-heads");
+ gi.add_element (nh);
+ }
+ add_element (h);
}
-Note_column::Note_column()
+/**
+ translate the rest symbols vertically by amount DY_I.
+ */
+void
+Note_column::translate_rests (int dy_i)
{
- stem_l_ = 0;
- h_shift_b_ =false;
- dir_i_ =0;
+ SCM s = get_elt_property ("rests");
+ for (; gh_pair_p (s); s = gh_cdr (s))
+ {
+ Score_element * se = unsmob_element (gh_car (s));
+ Staff_symbol_referencer_interface si (se);
+
+ se->translate_axis (dy_i * si.staff_space ()/2.0, Y_AXIS);
+ }
}
+
void
-Note_column::sort()
+Note_column::set_dotcol (Dot_column *d)
{
- head_l_arr_.sort( Notehead::compare);
+ add_element (d);
}
+
+/*
+ [TODO]
+ handle rest under beam (do_post: beams are calculated now)
+ what about combination of collisions and rest under beam.
+
+ Should lookup
-Interval_t<int>
-Note_column::head_positions_interval()const
+ rest -> stem -> beam -> interpolate_y_position ()
+
+*/
+
+void
+Note_column::do_post_processing ()
{
- ( (Note_column*)this)->sort();
- return Interval_t<int> ( head_l_arr_[0]->position_i_,
- head_l_arr_.top()->position_i_);
+ if (!stem_l () || !rest_b ())
+ return;
+
+ Beam * b = stem_l ()->beam_l ();
+ if (!b || !b->stem_count ())
+ return;
+
+ /* ugh. Should be done by beam.
+ (what? should be done --jcn)
+ scary too?: height is calculated during post_processing
+ */
+ Real beam_dy = 0;
+ Real beam_y = 0;
+
+ SCM s = b->get_elt_property ("height");
+ if (gh_number_p (s))
+ beam_dy = gh_scm2double (s);
+
+ s = b->get_elt_property ("y-position");
+ if (gh_number_p (s))
+ beam_y = gh_scm2double (s);
+
+ Real x0 = b->first_visible_stem ()->hpos_f ();
+ Real dydx = beam_dy/(b->last_visible_stem ()->hpos_f () - x0);
+
+ Direction d = stem_l ()->get_direction ();
+ Real beamy = (stem_l ()->hpos_f () - x0) * dydx + beam_y;
+
+ s = get_elt_property ("rests");
+ Score_element * se = unsmob_element (gh_car (s));
+ Staff_symbol_referencer_interface si (se);
+
+ Real staff_space = si.staff_space ();
+ Real rest_dim = extent (Y_AXIS)[d]*2.0 /staff_space ;
+
+ Real minimum_dist
+ = paper_l ()->get_var ("restcollision_minimum_beamdist") ;
+ Real dist =
+ minimum_dist + -d * (beamy - rest_dim) >? 0;
+ int stafflines = si.line_count ();
+
+ // move discretely by half spaces.
+ int discrete_dist = int (ceil (dist ));
+
+ // move by whole spaces inside the staff.
+ if (discrete_dist < stafflines+1)
+ discrete_dist = int (ceil (discrete_dist / 2.0)* 2.0);
+
+ translate_rests (-d * discrete_dist);
}
-void
-Note_column::do_pre_processing()
+Interval
+Note_column::rest_dim () const
{
- if (!dir_i_){
- if (stem_l_)
- dir_i_ = stem_l_->dir_i_;
- else
- dir_i_ = (head_positions_interval().center() >= 5) ? -1 : 1;
+ Interval restdim;
+ SCM s = get_elt_property ("rests");
+ for (; gh_pair_p (s); s = gh_cdr (s))
+ {
+ Score_element * sc = unsmob_element ( gh_car (s));
+ restdim.unite (sc->extent (Y_AXIS));
}
+
+ return restdim;
+}
+
+Note_head*
+Note_column::first_head () const
+{
+ Stem * st = stem_l ();
+ return st? st->first_head (): 0;
}
projects / lilypond.git / blobdiff