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/*
stem-beam-reg.cc -- part of LilyPond
(c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
*/
#include "musical-request.hh"
#include "stem-beam-reg.hh"
#include "beam.hh"
#include "stem.hh"
#include "grouping.hh"
#include "text-spanner.hh"
#include "complex-walker.hh"
#include "complex-staff.hh"
#include "debug.hh"
#include "grouping.hh"
#include "notehead.hh"
Stem_beam_register::Stem_beam_register()
{
post_move_processing();
current_grouping = 0;
beam_p_ = 0;
set_feature(Features::dir(0));
start_req_l_ = 0;
}
bool
Stem_beam_register::try_request(Request*req_l)
{
if ( req_l->beam() ) {
if (bool(beam_p_ ) == bool(req_l->beam()->spantype == Span_req::START))
return false;
if (beam_req_l_ && Beam_req::compare(*beam_req_l_ , *req_l->beam()))
return false;
beam_req_l_ = req_l->beam();
return true;
}
if ( req_l->stem() ) {
if (current_grouping && !current_grouping->child_fit_b(
get_staff_info().time_C_->whole_in_measure_))
return false;
if (stem_req_l_ && Stem_req::compare(*stem_req_l_, *req_l->stem()))
return false;
stem_req_l_ = req_l->stem();
return true;
}
return false;
}
void
Stem_beam_register::process_requests()
{
if (beam_req_l_) {
if (beam_req_l_->spantype == Span_req::STOP) {
end_beam_b_ = true;
start_req_l_ = 0;
} else {
beam_p_ = new Beam;
start_req_l_ = beam_req_l_;
current_grouping = new Rhythmic_grouping;
if (beam_req_l_->nplet) {
Text_spanner* t = new Text_spanner();
t->set_support(beam_p_);
t->spec.align_i_ = 0;
t->spec.text_str_ = beam_req_l_->nplet;
t->spec.style_str_="italic";
typeset_element(t);
}
}
}
if (stem_req_l_) {
stem_p_ = new Stem(4);
if (current_grouping)
current_grouping->add_child(
get_staff_info().time_C_->whole_in_measure_,
stem_req_l_->duration());
stem_p_->flag = stem_req_l_->duration_.type_i_;
if (beam_p_) {
if (stem_req_l_->duration_.type_i_<= 4)
stem_req_l_->warning( "stem doesn't fit in Beam");
else
beam_p_->add(stem_p_);
stem_p_->print_flag = false;
} else {
stem_p_->print_flag = true;
}
announce_element(Staff_elem_info(stem_p_, stem_req_l_));
}
}
void
Stem_beam_register::acknowledge_element(Staff_elem_info info)
{
if (!stem_p_)
return;
if (info.elem_p_->name() == Notehead::static_name() &&
stem_req_l_->duration() == info.req_l_->rhythmic()->duration())
stem_p_->add((Notehead*)info.elem_p_);
}
void
Stem_beam_register::pre_move_processing()
{
if (stem_p_) {
if (default_dir_i_)
stem_p_->dir = default_dir_i_;
typeset_element(stem_p_);
stem_p_ = 0;
}
if (beam_p_ && end_beam_b_) {
Rhythmic_grouping const * rg_C = get_staff_info().rhythmic_C_;
rg_C->extend(current_grouping->interval());
beam_p_->set_grouping(*rg_C, *current_grouping);
typeset_element(beam_p_);
delete current_grouping;
current_grouping = 0;
beam_p_ = 0;
}
end_beam_b_ = false;
}
void
Stem_beam_register::post_move_processing()
{
stem_p_ = 0;
beam_req_l_ = 0;
stem_req_l_ = 0;
end_beam_b_ = false;
}
Stem_beam_register::~Stem_beam_register()
{
if (beam_p_)
start_req_l_->warning("unterminated beam");
}
void
Stem_beam_register::set_feature(Features i)
{
default_dir_i_ = i.direction_i_;
}
IMPLEMENT_STATIC_NAME(Stem_beam_register);
ADD_THIS_REGISTER(Stem_beam_register);
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