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/*
key-item.cc -- implement Key_item
source file of the GNU LilyPond music typesetter
(c) 1996,1997 Han-Wen Nienhuys <hanwen@stack.nl>
keyplacement by Mats Bengtsson
*/
#include "key-item.hh"
#include "key.hh"
#include "debug.hh"
#include "molecule.hh"
#include "paper-def.hh"
#include "lookup.hh"
#include "key-grav.hh"
const int FLAT_TOP_PITCH=2; /* fes,ges,as and bes typeset in lower octave */
const int SHARP_TOP_PITCH=4; /* ais and bis typeset in lower octave */
Key_item::Key_item (int c)
{
breakable_b_ =true;
default_b_ = false;
set_c_position (c);
}
void
Key_item::read (Key_engraver const & key_grav_r)
{
assert (!key_grav_r.key_.multi_octave_b_);
const Array<int> &idx_arr =key_grav_r.accidental_idx_arr_;
for (int i = 0 ; i< idx_arr.size(); i++) {
int note = idx_arr[i];
int acc = ((Key &) key_grav_r.key_).oct (0).acc (note);
add (note, acc);
}
}
void
Key_item::set_c_position (int c0)
{
int octaves =(abs (c0) / 7) +1 ;
c_position=(c0 + 7*octaves)%7;
}
void
Key_item::add (int p, int a)
{
if ((a<0 && p>FLAT_TOP_PITCH) ||
(a>0 && p>SHARP_TOP_PITCH)) {
p -= 7; /* Typeset below c_position */
}
pitch.push (p);
acc.push (a);
}
Molecule*
Key_item::brew_molecule_p()const
{
Molecule*output = new Molecule;
Real inter = paper()->internote_f ();
for (int i =0; i < pitch.size(); i++) {
Symbol s= paper()->lookup_l ()->accidental (acc[i]);
Atom a (s);
a.translate ((c_position + pitch[i]) * inter, Y_AXIS);
Molecule m (a);
output->add_right (m);
}
if ( pitch.size()) {
Molecule m (paper()->lookup_l ()->fill (Box (
Interval (0, paper()->note_width ()),
Interval (0,0))));
output->add_right (m);
}
return output;
}
IMPLEMENT_IS_TYPE_B1(Key_item,Item);
void
Key_item::do_pre_processing()
{
if (default_b_) {
empty_b_ = transparent_b_ = (break_status_i() != 1);
}
}
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