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/*
key-reg.cc -- implement Key_register
source file of the LilyPond music typesetter
(c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
todo: key undo
*/
#include "key-reg.hh"
#include "key-item.hh"
#include "command-request.hh"
#include "staff-column.hh"
#include "local-key-reg.hh"
#include "musical-request.hh"
#include "local-key-item.hh"
#include "bar.hh"
Key_register::Key_register()
{
post_move_processing();
}
bool
Key_register::try_request(Request * req_l)
{
Command_req* creq_l= req_l->command();
if (!creq_l|| !creq_l->keychange())
return false;
assert(!keyreq_l_); // todo
keyreq_l_ = creq_l->keychange();
change_key_b_ = true;
read_req(keyreq_l_);
return true;
}
void
Key_register::acknowledge_element(Staff_elem_info info)
{
Command_req * r_l = info.req_l_->command() ;
if (r_l && r_l->clefchange()) {
change_key_b_ = true;
}
if (info.elem_p_->name() == Bar::static_name())
default_key_b_ = true;
}
void
Key_register::process_requests()
{
int c0_i= *get_staff_info().c0_position_i_l_;
if (key_.multi_octave_b_)
assert(false); // TODO .
else
kit_p_ = new Key_item(c0_i);
kit_p_->read(*this);
announce_element(Staff_elem_info(kit_p_, keyreq_l_));
}
void
Key_register::pre_move_processing()
{
if (! default_key_b_ && ! change_key_b_ ) {
delete kit_p_ ;
kit_p_ =0;
}
if (kit_p_) {
if (change_key_b_)
typeset_breakable_item(
new Key_item(*kit_p_), kit_p_, new Key_item(*kit_p_));
else
typeset_breakable_item(0,0,kit_p_);
kit_p_ = 0;
}
}
void
Key_register::read_req(Key_change_req * r)
{
key_.multi_octave_b_ = r->multi_octave_b_;
accidental_idx_arr_.set_size(0);
for (int i = 0; i < r->melodic_p_arr_.size(); i ++) {
Melodic_req * m_l =r->melodic_p_arr_[i];
int n_i=m_l->notename_i_;
int a_i = m_l->accidental_i_;
int o_i = m_l->octave_i_;
if (r->multi_octave_b_)
key_.set(o_i, n_i, a_i);
else
key_.set(n_i, a_i);
accidental_idx_arr_.push(n_i);
}
}
void
Key_register::post_move_processing()
{
keyreq_l_ = 0;
default_key_b_ = false;
kit_p_ = 0;
change_key_b_ = false;
}
IMPLEMENT_STATIC_NAME(Key_register);
ADD_THIS_REGISTER(Key_register);
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