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#include "stem.hh"
#include "dimen.hh"
#include "debug.hh"
#include "pstaff.hh"
#include "pscore.hh"
#include "paper.hh"
#include "lookupsyms.hh"
#include "molecule.hh"
const int STEMLEN=7;
Stem::Stem(int c)
{
minnote = maxnote = 0;
bot = top = 0;
flag = 4;
staff_center=c;
}
void
Stem::print()const
{
mtor << "Stem minmax=["<< minnote<<","<<maxnote<<"], flag: "<<flag;
Item::print();
}
void
Stem::calculate()
{
assert(minnote<=maxnote);
int stafftop = 2*staff_center;
if (maxnote < -2){
bot = minnote;
top = staff_center - staff_center/2; // uhh... how about non 5-line staffs?
}else if (minnote > stafftop + 2) {
top = maxnote;
bot = staff_center + staff_center/2;
flag = -flag;
}else {
Real mean = (minnote+maxnote)/2;
top = (mean > staff_center) ? maxnote : maxnote+STEMLEN;
bot = (mean > staff_center) ? minnote-STEMLEN : minnote;
flag = (mean > staff_center) ? -flag : flag;
}
}
Interval
Stem::width()const
{
if (ABS(flag) <= 4)
return Interval(0,0); // TODO!
Paperdef*p= pstaff_->pscore_->paper_;
return p->lookup_->flag(flag).dim.x;
}
void
Stem::brew_molecole()
{
assert(pstaff_);
Paperdef *p = pstaff_->pscore_->paper_;
Parametric_symbol *stem = p->lookup_->stem();
assert(bot!=top);
assert(!output);
Real dy = p->interline()/2;
String y1 =print_dimen( dy * bot);
String y2 = print_dimen(dy * top);
Symbol ss =stem->eval(y1,y2);
output = new Molecule(Atom(ss));
if (ABS(flag) > 4){
Symbol fl = p->lookup_->flag(flag);
Molecule m(fl);
if (flag < -4){
output->add_bot(m);
} else if (flag > 4) {
output->add_top(m);
} else
assert(false);
}
if (flag > 0){
Real dx = pstaff_->pscore_->paper_->note_width(); // ugh
output->translate(Offset(dx,0));
}
}
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