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 "beam.hh"
#include "note-head.hh"
#include "stem.hh"
+#include "rest.hh"
+#include "debug.hh"
+#include "paper-def.hh"
-IMPLEMENT_STATIC_NAME(Note_column);
-IMPLEMENT_IS_TYPE_B1(Note_column,Script_column);
-
-void
-Note_column::add(Stem*stem_l)
+bool
+Note_column::rest_b () const
{
- stem_l_ = stem_l;
- add_support(stem_l);
+ return rest_l_arr_.size ();
}
-void
-Note_column::add(Note_head* n_l)
+int
+Note_column::shift_compare (Note_column *const &p1, Note_column*const&p2)
{
- assert(!n_l->rest_b_);
- head_l_arr_.push(n_l);
- add_support(n_l);
+ SCM s1 = p1->get_elt_property (horizontal_shift_scm_sym);
+ SCM s2 = p2->get_elt_property (horizontal_shift_scm_sym);
+
+ int h1 = (s1 == SCM_BOOL_F) ? 0 : gh_scm2int (SCM_CDR(s1));
+ int h2 = (s2 == SCM_BOOL_F) ? 0 : gh_scm2int (SCM_CDR(s2));
+ return h1 - h2;
}
Note_column::Note_column()
{
- stem_l_ = 0;
- h_shift_b_ =false;
- dir_i_ =0;
+ set_axes (X_AXIS,X_AXIS);
+ stem_l_ = 0;
}
void
Note_column::sort()
{
- head_l_arr_.sort( Note_head::compare);
+ head_l_arr_.sort (Note_head::compare);
}
-
-Interval_t<int>
-Note_column::head_positions_interval()const
+
+Slice
+Note_column::head_positions_interval() const
+{
+ Slice iv;
+
+ iv.set_empty ();
+ for (int i=0; i <head_l_arr_.size ();i ++)
+ {
+ int j = head_l_arr_[i]->position_i_;
+ iv.unite (Slice (j,j));
+ }
+ return iv;
+}
+
+Direction
+Note_column::dir () const
{
- ( (Note_column*)this)->sort();
- return Interval_t<int> ( head_l_arr_[0]->position_i_,
- head_l_arr_.top()->position_i_);
+ if (stem_l_)
+ return stem_l_->dir_;
+ else if (head_l_arr_.size ())
+ return sign (head_positions_interval().center ());
+ programming_error ("Note column without heads and stem!");
+ return CENTER;
}
void
-Note_column::do_pre_processing()
+Note_column::set_stem (Stem * stem_l)
{
- if (!dir_i_){
- if (stem_l_)
- dir_i_ = stem_l_->dir_i_;
- else
- dir_i_ = (head_positions_interval().center() >= 5) ? -1 : 1;
- }
- Script_column::do_pre_processing();
+ stem_l_ = stem_l;
+ add_dependency (stem_l);
+ add_element (stem_l);
}
-
void
-Note_column::do_substitute_dependency(Score_elem*o,Score_elem*n)
+Note_column::do_substitute_element_pointer (Score_element*o, Score_element*n)
{
- 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);
+ if (stem_l_ == o)
+ {
+ stem_l_ = n ? dynamic_cast<Stem *> (n):0;
}
- if (stem_l_ == o) {
- stem_l_ = n ? (Stem*)n->item():0;
+ if (dynamic_cast<Note_head *> (o))
+ {
+ head_l_arr_.substitute (dynamic_cast<Note_head *> (o),
+ (n)? dynamic_cast<Note_head *> (n) : 0);
+ }
+
+ if (dynamic_cast<Rest *> (o))
+ {
+ rest_l_arr_.substitute (dynamic_cast<Rest *> (o),
+ (n)? dynamic_cast<Rest *> (n) : 0);
}
}
+
+void
+Note_column::add_head (Rhythmic_head *h)
+{
+ if (Rest*r=dynamic_cast<Rest *> (h))
+ {
+ rest_l_arr_.push (r);
+ }
+ if (Note_head *nh=dynamic_cast<Note_head *> (h))
+ {
+ head_l_arr_.push (nh);
+ }
+ add_element (h);
+}
+
+/**
+ translate the rest symbols vertically by amount DY_I.
+ */
+void
+Note_column::translate_rests (int dy_i)
+{
+ invalidate_cache (Y_AXIS);
+ for (int i=0; i < rest_l_arr_.size(); i++)
+ rest_l_arr_[i]->position_i_ += dy_i;
+}
+
+void
+Note_column::do_print() const
+{
+#ifndef NPRINT
+ DOUT << "rests: " << rest_l_arr_.size() << ", ";
+ DOUT << "heads: " << head_l_arr_.size();
+#endif
+}
+
+void
+Note_column::set_dotcol (Dot_column *d)
+{
+ 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
+
+ rest -> stem -> beam -> interpolate_y_position ()
+
+*/
+
+void
+Note_column::do_post_processing ()
+{
+ if (!stem_l_ || !rest_b ())
+ return;
+
+ Beam * b = stem_l_->beam_l_;
+ if (!b || !b->stems_.size ())
+ return;
+
+ /* ugh. Should be done by beam. */
+ Direction d = stem_l_->get_dir ();
+ Real beamy = (stem_l_->hpos_f () - b->stems_[0]->hpos_f ()) * b->slope_f_ + b->left_y_;
+
+ Real staff_space = rest_l_arr_[0]->staff_line_leading_f ();
+ 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 = rest_l_arr_[0]->lines_i ();
+
+ // 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);
+}
projects / lilypond.git / blobdiff