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/*
tie.cc -- implement Tie
source file of the GNU LilyPond music typesetter
(c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
*/
#include "paper-def.hh"
#include "tie.hh"
#include "note-head.hh"
#include "p-col.hh"
void
Tie::set_head(int x_pos, Note_head * head_l)
{
if (x_pos >0) {
assert(!right_head_l_);
right_head_l_ = head_l;
} else {
assert(!left_head_l_);
left_head_l_ = head_l;
}
add_dependency(head_l);
}
Tie::Tie()
{
right_head_l_ =0;
left_head_l_ =0;
same_pitch_b_ =false;
}
void
Tie::set_default_dir()
{
int m= (left_head_l_->position_i_ + right_head_l_->position_i_) /2 ;
dir_i_ = (m < 5)? -1:1; // ugh
}
void
Tie::do_add_processing()
{
assert(left_head_l_ && right_head_l_);
left_col_l_ = left_head_l_ -> pcol_l_;
right_col_l_ = right_head_l_ -> pcol_l_;
}
/**
This is already getting hairy. Should use Note_head *heads[2]
*/
void
Tie::do_post_processing()
{
assert(left_head_l_ || right_head_l_);
left_pos_i_ = (left_head_l_)?
left_head_l_->position_i_ : right_head_l_->position_i_;
right_pos_i_ = (right_head_l_) ?
right_head_l_->position_i_ : left_head_l_->position_i_;
if ( right_head_l_ && right_head_l_->extremal_i_) {
right_pos_i_ += 2*dir_i_;
right_dx_f_ -= 0.25;
} else
right_dx_f_ -= 0.5;
if (left_head_l_ && left_head_l_->extremal_i_) {
left_pos_i_ += 2*dir_i_;
left_dx_f_ += 0.25;
} else
left_dx_f_ += 0.5;
if (!right_head_l_)
right_pos_i_ = left_pos_i_;
if (! left_head_l_)
left_pos_i_ = right_pos_i_;
}
void
Tie::do_substitute_dependency(Score_elem*o, Score_elem*n)
{
Note_head *new_l =n?(Note_head*)n->item():0;
if (o->item() == left_head_l_)
left_head_l_ = new_l;
else if (o->item() == right_head_l_)
right_head_l_ = new_l;
}
IMPLEMENT_IS_TYPE_B1(Tie,Bow);
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