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/*
staff-regs.cc -- implement Staff_registers
source file of the LilyPond music typesetter
(c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
*/
#include "staff-sym.hh"
#include "voice-group-regs.hh"
#include "voice-regs.hh"
#include "staff-regs.hh"
#include "command-request.hh"
#include "bar.hh"
#include "debug.hh"
#include "input-register.hh"
Staff_info
Staff_registers::get_staff_info() return inf;
{
inf = Request_register::get_staff_info();
inf.c0_position_i_l_ = &c0_position_i_;
}
Staff_registers::Staff_registers(Input_register const*ireg_C)
{
c0_position_i_ = 0;
base_position_i_ =0;
add( ireg_C->get_nongroup_p_arr());
ireg_C_ =ireg_C;
}
/** Magic function which takes a Voice_registers out of one of its own
children, and puts it in another. This also handles the push and
popgroup feature. */
void
Staff_registers::change_group(Group_change_req * greq_l,
Voice_registers *voice_regs_l,
Voice_group_registers * old_group)
{
Voice_registers *regs_p = (old_group)
? (Voice_registers*) old_group->get_register_p(
voice_regs_l)
: new Voice_registers(
greq_l->voice_l(), ireg_C_->get_ireg_l("Voice_group_registers")
->get_ireg_l("Voice_registers"));
String new_str = greq_l->newgroup_str_;
String old_str;
if (old_group)
old_str = old_group->group_id_str_;
if ( new_str[0] == '+') {
new_str = old_str + new_str;
} else if (new_str[0] == '-') {
int idx = old_str.index_last_i('+');
if (idx >=0)
new_str = old_str.left_str ( idx );
}
Voice_group_registers * new_group_l = get_group(new_str);
new_group_l->add(regs_p);
mtor << "processed change_group " << get_staff_info().when()<<"\n";
print();
}
Voice_group_registers *
Staff_registers::get_group(String id)
{
for (int i=0; i < group_l_arr_.size(); i++) {
if (group_l_arr_[i]->group_id_str_ == id)
return group_l_arr_[i];
}
Voice_group_registers *group_p =
new Voice_group_registers(id, ireg_C_->get_ireg_l("Voice_group_registers"));
group_l_arr_.push(group_p);
add(group_p);
return group_p;
}
void
Staff_registers::terminate_register(Request_register * reg)
{
for (int i=0; i < group_l_arr_.size(); i++) {
if (group_l_arr_[i] == reg) {
group_l_arr_.del(i);
Register_group_register::terminate_register(reg);
return;
}
}
assert(false);
}
bool
Staff_registers::try_request(Request * r)
{
bool b = Register_group_register::try_request(r);
if (!b) {
Command_req * cr_l = r->command() ;
if (cr_l && cr_l->groupchange()) {
change_group(cr_l->groupchange(), 0, 0);
b = true;
} else
b= false;
}
return b;
}
IMPLEMENT_STATIC_NAME(Staff_registers);
bool
Staff_registers::acceptable_request_b(Request*r)const
{
return Register_group_register::acceptable_request_b(r) ||
(r->command() && r->command()->groupchange());
}
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