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/*
slur.cc -- implement Slur
source file of the GNU LilyPond music typesetter
(c) 1996, 1997 Han-Wen Nienhuys <hanwen@stack.nl>
*/
/*
TODO:
think about crossing stems.
Begin and end should be treated as a Script.
*/
#include "slur.hh"
#include "scalar.hh"
#include "lookup.hh"
#include "paper-def.hh"
#include "note-column.hh"
#include "stem.hh"
#include "p-col.hh"
#include "molecule.hh"
#include "debug.hh"
#include "boxes.hh"
void
Slur::add(Note_column*n)
{
encompass_arr_.push(n);
add_dependency(n);
}
void
Slur::set_default_dir()
{
dir_i_ = -1;
for (int i=0; i < encompass_arr_.size(); i ++) {
if (encompass_arr_[i]->dir_i_ < 0) {
dir_i_ =1;
break;
}
}
}
void
Slur::do_pre_processing()
{
right_col_l_ = encompass_arr_.top()->pcol_l_;
left_col_l_ = encompass_arr_[0]->pcol_l_;
}
void
Slur::do_break_at(PCol*l, PCol*r)
{
assert(l->line_l_ == r->line_l_);
Array<Note_column*> old_encompass_arr = encompass_arr_;
encompass_arr_.set_size(0);
for (int i =0; i < old_encompass_arr.size(); i++) {
if (old_encompass_arr[i]->pcol_l_->line_l_==l->line_l_)
encompass_arr_.push(old_encompass_arr[i]);
}
}
void
Slur::do_substitute_dependency(Score_elem*o, Score_elem*n)
{
int i;
while((i = encompass_arr_.find_i((Note_column*)o->item())) >=0) {
if (n)
encompass_arr_[i] = (Note_column*)n->item();
else
encompass_arr_.del(i);
}
}
static int
Note_column_compare(Note_column *const&n1 , Note_column* const&n2)
{
return n1->pcol_l_->rank_i() - n2->pcol_l_->rank_i();
}
void
Slur::do_post_processing()
{
encompass_arr_.sort(Note_column_compare);
if (!dir_i_)
set_default_dir();
Real inter_f = paper()->internote_f();
if (encompass_arr_[0]->stem_l_)
left_pos_i_ = rint(encompass_arr_[0]->stem_l_->height()[dir_i_]/inter_f);
else
left_pos_i_ = rint ( encompass_arr_[0]->head_positions_interval()[dir_i_]);
if (encompass_arr_.top()->stem_l_)
right_pos_i_ = rint(encompass_arr_.top()->stem_l_->height()[dir_i_]/inter_f);
else
right_pos_i_ = rint (encompass_arr_.top()->head_positions_interval()[dir_i_]);
left_pos_i_ += dir_i_;
right_pos_i_ += dir_i_;
}
IMPLEMENT_STATIC_NAME(Slur);
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