+#include "varray.hh"
+
+#include "dimen.hh"
#include "beam.hh"
+#include "misc.hh"
#include "debug.hh"
#include "symbol.hh"
#include "molecule.hh"
#include "leastsquares.hh"
#include "pcol.hh"
#include "stem.hh"
-#include "paper.hh"
+#include "paper-def.hh"
#include "lookup.hh"
+#include "grouping.hh"
+
struct Stem_info {
Real miny;
int no_beams;
- ///////////////
Stem_info(){}
Stem_info(const Stem*);
};
+
Stem_info::Stem_info(const Stem*s)
{
- x = s->hpos();
+ x = s->hindex();
int dir = s->dir;
- idealy = MAX(dir*s->top, dir*s->bot);
- miny = MAX(dir*s->minnote, dir*s-> maxnote);
+ idealy = max(dir*s->top, dir*s->bot);
+ miny = max(dir*s->minnote, dir*s-> maxnote);
assert(miny <= idealy);
- no_beams = s->flag;
+
+}
+
+/* *************** */
+
+Offset
+Beam::center()const
+{
+ assert(status >= POSTCALCED);
+
+ Real w=(paper()->note_width() + width().length())/2.0;
+ return Offset(w, (left_pos + w* slope)*paper()->internote());
}
-/****************/
Beam::Beam()
{
slope = 0;
left_pos = 0.0;
- dir =0;
}
void
Beam::add(Stem*s)
{
stems.bottom().add(s);
+ s->add_dependency(this);
s->print_flag = false;
}
{
int dirs[2];
dirs[0]=0; dirs[1] =0;
- for (PCursor<Stem*> sc(stems); sc.ok(); sc++) {
- sc->set_default_dir();
- dirs[(sc->dir+1)/2] ++;
+ for (iter_top(stems,i); i.ok(); i++) {
+ int d = i->get_default_dir();
+ dirs[(d+1)/2] ++;
}
- dir = (dirs[0] > dirs[1]) ? -1 : 1;
- for (PCursor<Stem*> sc(stems); sc.ok(); sc++) {
- sc->dir = dir;
+ dir_i_ = (dirs[0] > dirs[1]) ? -1 : 1;
+ for (iter_top(stems,i); i.ok(); i++) {
+ i->dir = dir_i_;
}
}
+
/*
should use minimum energy formulation (cf linespacing)
*/
void
Beam::solve_slope()
{
- svec<Stem_info> sinfo;
- for (PCursor<Stem* >sc(stems); sc.ok(); sc++) {
- sc->set_default_extents();
- Stem_info i(sc);
- sinfo.add(i);
+ Array<Stem_info> sinfo;
+ for (iter_top(stems,i); i.ok(); i++) {
+ i->set_default_extents();
+ Stem_info info(i);
+ sinfo.push(info);
}
Real leftx = sinfo[0].x;
Least_squares l;
- for (int i=0; i < sinfo.sz(); i++) {
+ for (int i=0; i < sinfo.size(); i++) {
sinfo[i].x -= leftx;
- l.input.add(Offset(sinfo[i].x, sinfo[i].idealy));
+ l.input.push(Offset(sinfo[i].x, sinfo[i].idealy));
}
l.minimise(slope, left_pos);
Real dy = 0.0;
- for (int i=0; i < sinfo.sz(); i++) {
+ for (int i=0; i < sinfo.size(); i++) {
Real y = sinfo[i].x * slope + left_pos;
Real my = sinfo[i].miny;
dy = my -y;
}
left_pos += dy;
- left_pos *= dir;
- slope *= dir;
-
- {
- Real inter =paper()->internote();
- Real unitslope = slope*inter;
+ left_pos *= dir_i_;
+ slope *= dir_i_;
- // set beamslope, for setting stems correctly
- // ignoring return.
- Symbol sy = paper()->lookup_->beam(unitslope, width().length());
- slope =unitslope / inter;
- }
+ // URG
+ Real sl = slope*paper()->internote();
+ paper()->lookup_p_->beam(sl, 20 PT);
+ slope = sl /paper()->internote();
}
void
Beam::set_stemlens()
{
- PCursor<Stem*> s(stems);
- Real x0 = s->hpos();
+ iter_top(stems,s);
+ Real x0 = s->hindex();
for (; s.ok() ; s++) {
- Real x = s->hpos()-x0;
+ Real x = s->hindex()-x0;
s->set_stemend(left_pos + slope * x);
}
}
+
void
-Beam::calculate()
+Beam::do_post_processing()
{
- assert(stems.size()>1);
- if (!dir)
- set_default_dir();
-
- solve_slope();
+ solve_slope();
set_stemlens();
}
void
-Beam::process()
+Beam::set_grouping(Rhythmic_grouping def, Rhythmic_grouping cur)
{
- calculate();
- brew_molecule();
+ def.OK();
+ cur.OK();
+ assert(cur.children.size() == stems.size());
+
+ cur.split(def);
+
+ Array<int> b;
+ {
+ iter_top(stems,s);
+ Array<int> flags;
+ for (; s.ok(); s++) {
+ int f = intlog2(abs(s->flag))-2;
+ assert(f>0);
+ flags.push(f);
+ }
+ int fi =0;
+ b= cur.generate_beams(flags, fi);
+ b.insert(0,0);
+ b.push(0);
+ assert(stems.size() == b.size()/2);
+ }
+
+ iter_top(stems,s);
+ for (int i=0; i < b.size() && s.ok(); i+=2, s++) {
+ s->beams_left = b[i];
+ s->beams_right = b[i+1];
+ }
}
// todo.
Spanner *
-Beam::broken_at(const PCol *, const PCol *) const
+Beam::do_break_at( PCol *, PCol *) const
{
- return new Beam(*this);
+ Beam *beam_p= new Beam(*this);
+
+ return beam_p;
}
void
-Beam::preprocess()
+Beam::do_pre_processing()
{
- left = (*stems.top()) ->pcol_;
- right = (*stems.bottom())->pcol_;
-}
+ left = (*stems.top()) ->pcol_l_;
+ right = (*stems.bottom())->pcol_l_;
+ assert(stems.size()>1);
+ if (!dir_i_)
+ set_default_dir();
-Interval
-Beam::height() const
-{
- return output->extent().y;
}
+
Interval
Beam::width() const
{
Beam * me = (Beam*) this; // ugh
- return Interval( (*me->stems.top()) ->hpos(),
- (*me->stems.bottom()) ->hpos() );
+ return Interval( (*me->stems.top()) ->hindex(),
+ (*me->stems.bottom()) ->hindex() );
}
-void
-Beam::brew_molecule()
+/*
+ beams to go with one stem.
+ */
+Molecule
+Beam::stem_beams(Stem *here, Stem *next, Stem *prev)const
{
- assert(left->line == right->line);
- Real inter=paper()->internote();
- Real sl = slope*inter;
- Real w = width().length() + paper()->rule_thickness();
- Symbol s = paper()->lookup_->beam(sl,w);
+ assert( !next || next->hindex() > here->hindex() );
+ assert( !prev || prev->hindex() < here->hindex() );
+ Real dy=paper()->internote()*2;
+ Real stemdx = paper()->rule_thickness();
+ Real sl = slope*paper()->internote();
+ paper()->lookup_p_->beam(sl, 20 PT);
+
+ Molecule leftbeams;
+ Molecule rightbeams;
+
+ /* half beams extending to the left. */
+ if (prev) {
+ int lhalfs= lhalfs = here->beams_left - prev->beams_right ;
+ int lwholebeams= here->beams_left <? prev->beams_right ;
+ Real w = (here->hindex() - prev->hindex())/4;
+ Symbol dummy;
+ Atom a(dummy);
+ if (lhalfs) // generates warnings if not
+ a = paper()->lookup_p_->beam(sl, w);
+ a.translate(Offset (-w, -w * sl));
+ for (int j = 0; j < lhalfs; j++) {
+ Atom b(a);
+ b.translate(Offset(0, -dir_i_ * dy * (lwholebeams+j)));
+ leftbeams.add( b );
+ }
+ }
+
+ if (next){
+ int rhalfs = here->beams_right - next->beams_left;
+ int rwholebeams = here->beams_right <? next->beams_left;
- Atom a(s);
+ Real w = next->hindex() - here->hindex();
+ Atom a = paper()->lookup_p_->beam(sl, w + stemdx);
+
+ int j = 0;
+ for (; j < rwholebeams; j++) {
+ Atom b(a);
+ b.translate(Offset(0, -dir_i_ * dy * j));
+ rightbeams.add( b );
+ }
+
+ w /= 4;
+ if (rhalfs)
+ a = paper()->lookup_p_->beam(sl, w);
+
+ for (; j < rwholebeams + rhalfs; j++) {
+ Atom b(a);
+ b.translate(Offset(0, -dir_i_ * dy * j));
+ rightbeams.add(b );
+ }
+
+ }
+ leftbeams.add(rightbeams);
+ return leftbeams;
+}
+
+
+Molecule*
+Beam::brew_molecule_p() const return out;
+{
+ Real inter=paper()->internote();
+ out = new Molecule;
+ Real x0 = stems.top()->hindex();
- Real dx = width().min -left->hpos;
- a.translate(Offset(dx,left_pos*inter));
- output = new Molecule(a);
+ for (iter_top(stems,i); i.ok(); i++) {
+ PCursor<Stem*> p(i-1);
+ PCursor<Stem*> n(i+1);
+ Stem * prev = p.ok() ? p.ptr() : 0;
+ Stem * next = n.ok() ? n.ptr() : 0;
+
+ Molecule sb = stem_beams(i, next, prev);
+ Real x = i->hindex()-x0;
+ sb.translate(Offset(x, (x * slope + left_pos)* inter));
+ out->add(sb);
+ }
+ out->translate(Offset(x0 - left->hpos,0));
}
void
-Beam::print()const
+Beam::do_print()const
{
- mtor << "Beam, slope " <<slope << "left ypos " << left_pos<<'\n';
+#ifndef NPRINT
+ mtor << "slope " <<slope << "left ypos " << left_pos;
+ Spanner::print();
+#endif
}
+Beam::~Beam()
+{
+
+}
projects / lilypond.git / blobdiff