*/
#include "stem.hh"
-#include "dimen.hh"
+#include "dimen.hh"
#include "debug.hh"
#include "paper-def.hh"
#include "note-head.hh"
IMPLEMENT_IS_TYPE_B1 (Stem,Item);
-Stem::Stem ()
+Stem::Stem ()
{
/*
TODO: staff-size
- */
+ */
abbrev_flag_i_ = 0;
beam_l_ = 0;
beams_left_i_ = 0;
beam_gap_i_ = 0;
}
-int
-Stem::min_head_i () const
+Interval_t<int>
+Stem::head_positions () const
{
- int m = 1000;
+ Interval_t<int> r;
for (int i =0; i < head_l_arr_.size (); i++)
- m = m <? head_l_arr_[i]->position_i_;
- return m;
-}
-
-int
-Stem::max_head_i () const
-{
- int m = -1000;
- for (int i =0; i < head_l_arr_.size (); i++)
- m = m >? head_l_arr_[i]->position_i_;
- return m;
-
+ {
+ int p = head_l_arr_[i]->position_i_;
+ r[BIGGER] = r[BIGGER] >? p;
+ r[SMALLER] = r[SMALLER] <? p;
+ }
+ return r;
}
void
#endif
}
-Real
+Real
Stem::stem_length_f () const
{
return yextent_drul_[UP]-yextent_drul_[DOWN] ;
Real
Stem::stem_start_f () const
{
- return (dir_ < 0)? yextent_drul_[UP] : yextent_drul_[DOWN];
+ return yextent_drul_[Direction(-dir_)];
}
Real
Stem::stem_end_f () const
{
- return (dir_ < 0)? yextent_drul_[DOWN] : yextent_drul_[UP];
+ return yextent_drul_[dir_];
}
Stem::set_stemend (Real se)
{
// todo: margins
- if (! ((dir_ > 0 && se >= max_head_i ()) ||
- (se <= min_head_i () && dir_ <0)))
- warning ("Weird stem size; check for narrow beams");
+ if (dir_ && dir_ * head_positions()[dir_] >= se*dir_)
+ warning (_("Weird stem size; check for narrow beams"));
- yextent_drul_[UP] = (dir_ < 0) ? max_head_i () : se;
- yextent_drul_[DOWN] = (dir_ < 0) ? se : min_head_i ();
+
+ yextent_drul_[dir_] = se;
+ yextent_drul_[Direction(-dir_)] = head_positions()[-dir_];
}
int
else if (n->is_type_b (Rest::static_name ()))
{
rest_l_arr_.push ((Rest*)n);
- }
+ }
}
bool
Stem::invisible_b () const
{
-
- return (!head_l_arr_.size () ||
+ return (!head_l_arr_.size () ||
head_l_arr_[0]->balltype_i_ <= 0);
-
-}
-
-// if dir_ is set we return fake values.
-int
-Stem::get_center_distance_from_top ()
-{
- if (dir_)
- return (dir_ > 0) ? 0 : 1;
-
- int staff_center = 0;
- int max = max_head_i () - staff_center;
- return max >? 0;
}
-// if dir_ is set we return fake values.
int
-Stem::get_center_distance_from_bottom ()
+Stem::get_center_distance (Direction d)
{
- if (dir_)
- return (dir_ > 0) ? 1 : 0;
-
int staff_center = 0;
- int min = staff_center - min_head_i ();
- return min >? 0;
+ int distance = d*(head_positions()[d] - staff_center);
+ return distance >? 0;
}
Direction
Stem::get_default_dir ()
{
- if (dir_)
- return dir_;
- return (get_center_distance_from_top () >=
- get_center_distance_from_bottom ()) ?
- (Direction)-1 : (Direction)1;
+ return (get_center_distance (UP) >=
+ get_center_distance (DOWN))
+ ? DOWN
+ : UP;
}
void
Stem::set_default_stemlen ()
{
- if (!dir_)
- set_default_dir ();
-
-
- Real dy = paper ()->interbeam_f ();
Real len = STEMLEN;
+ Real dy = paper ()->interbeam_f ();
+
// ugh, should get nice *rule* for this
if (abbrev_flag_i_ > 1)
len += (abbrev_flag_i_ - 1)* dy / 2;
- set_stemend ((dir_ > 0) ? max_head_i () + len :
- min_head_i () - len);
+
+
+ if (!dir_)
+ set_default_dir ();
+
+ /* If the stem points in the "wrong" direction, it should be
+ shortened, according to [Roush & Gourlay]. Their suggestion to knock off
+ a whole staffspace is a bit drastical though.
+ */
+ else if (dir_ != get_default_dir ())
+ len -= 1.0;
+
+ if (flag_i_ >= 5)
+ len += 2.0;
+ if (flag_i_ >= 6)
+ len += 1.0;
+ set_stemend ((dir_ > 0) ? head_positions()[BIGGER] + len :
+ head_positions()[SMALLER] - len);
+
if (dir_ * stem_end_f () < 0)
{
set_stemend (0);
}
-
-
}
void
if (!stem_length_f ())
set_default_stemlen ();
- set_stemend ((dir_< 0) ?
- max_head_i ()-stem_length_f (): min_head_i () + stem_length_f ());
-
+
if (dir_ == UP)
stem_xdir_ = RIGHT;
if (invisible_b ())
/*
TODO
-
+
move into note_column.cc
*/
if (!head_l_arr_.size ())
return;
head_l_arr_.sort (Note_head::compare);
- if (dir_ < 0)
+ if (dir_ < 0)
head_l_arr_.reverse ();
-
+
head_l_arr_[0]->extremal_i_ = -1;
head_l_arr_.top ()->extremal_i_ = 1;
int parity=1;
int lastpos = head_l_arr_[0]->position_i_;
- for (int i=1; i < head_l_arr_.size (); i ++)
+ for (int i=1; i < head_l_arr_.size (); i ++)
{
int dy =abs (lastpos- head_l_arr_[i]->position_i_);
-
- if (dy <= 1)
+
+ if (dy <= 1)
{
if (parity)
head_l_arr_[i]->x_dir_ = (stem_xdir_ == LEFT) ? LEFT : RIGHT;
}
-
+
Molecule
Stem::abbrev_mol () const
{
Real dy = paper ()->interbeam_f ();
Real w = 1.5 * paper ()->lookup_l ()->ball (2).dim_.x ().length ();
Real beamdy = paper ()->interline_f () / 2;
-
+
int beams_i = 0;
Real slope = paper ()->internote_f () / 4;
-
+
if (beam_l_) {
// huh?
slope = 2 * beam_l_->slope;
// ugh, rather calc from Abbreviation_req
- beams_i = beams_right_i_ >? beams_left_i_;
+ beams_i = beams_right_i_ >? beams_left_i_;
}
paper ()->lookup_l ()->beam (slope, 20 PT);
-
+
Molecule beams;
Atom a (paper ()->lookup_l ()->beam (slope, w));
a.translate (Offset(- w / 2, stem_end_f () - (w / 2 * slope)));
- // ugh
- if (!beams_i)
- a.translate_axis (dy + beamdy - dir_ * dy, Y_AXIS);
- else
- a.translate_axis (2 * beamdy - dir_ * (beamdy - dy), Y_AXIS);
- for (int i = 0; i < abbrev_flag_i_; i++)
+ // ugh
+ if (!beams_i)
+ a.translate_axis (dy + beamdy - dir_ * dy, Y_AXIS);
+ else
+ a.translate_axis (2 * beamdy - dir_ * (beamdy - dy), Y_AXIS);
+
+ for (int i = 0; i < abbrev_flag_i_; i++)
{
Atom b (a);
b.translate_axis (-dir_ * dy * (beams_i + i), Y_AXIS);
beams.add (b);
}
-
+
return beams;
}
+const Real ANGLE = 20* (2.0*M_PI/360.0); // ugh!
+
Molecule*
-Stem::brew_molecule_p () const
+Stem::brew_molecule_p () const
{
Molecule *mol_p =new Molecule;
-
- Real bot = yextent_drul_[DOWN];
- Real top = yextent_drul_[UP];
-
- assert (bot!=top);
-
Paper_def *p =paper ();
-
+ Drul_array<Real> stem_y = yextent_drul_;
Real dy = p->internote_f ();
+
+
+ Real head_wid = 0;
+ if (head_l_arr_.size ())
+ head_wid = head_l_arr_[0]->width ().length ();
+ stem_y[Direction(-dir_)] += dir_ * head_wid * tan(ANGLE)/(2*dy);
+
if (!invisible_b ())
{
- Atom ss =p->lookup_l ()->stem (bot*dy,top*dy);
+ Atom ss =p->lookup_l ()->stem (stem_y[DOWN]*dy,
+ stem_y[UP]*dy);
mol_p->add (Atom (ss));
}
-
+
if (!beam_l_ &&abs (flag_i_) > 2)
{
Atom fl = p->lookup_l ()->flag (flag_i_, dir_);
- mol_p->add_at_edge (Y_AXIS, dir_, Molecule (Atom (fl)));
+ fl.translate_axis(stem_y[dir_]*dy, Y_AXIS);
+ mol_p->add(fl);
assert (!abbrev_flag_i_);
}
-
+
if (abbrev_flag_i_)
mol_p->add (abbrev_mol ());
return mol_p;
}
-Real
+Real
Stem::note_delta_f () const
{
Real r=0;
}
/*
-TODO: head_l_arr_/rest_l_arr_ in do_substitute_dependent ()
+ TODO: head_l_arr_/rest_l_arr_ in do_substitute_dependent ()
*/
void
Stem::do_substitute_dependency (Score_elem*o,Score_elem*n)
projects / lilypond.git / blobdiff