#include "directional-element-interface.hh"
#include "item.hh"
#include "lookup.hh"
+#include "note-collision.hh"
+#include "note-column.hh"
#include "output-def.hh"
#include "staff-symbol-referencer.hh"
#include "stem.hh"
else
/* down stems with flags should have more sloped trems (helps avoid
flag/stem collisions without making the stem very long) */
- return scm_from_double ((Stem::duration_log (stem) >= 3 && get_grob_direction (stem) == DOWN)
+ return scm_from_double ((Stem::duration_log (stem) >= 3 && get_grob_direction (me) == DOWN)
? 0.40 : 0.25);
}
{
Grob *me = unsmob_grob (smob);
Grob *stem = unsmob_grob (me->get_object ("stem"));
- Direction stemdir = get_grob_direction (stem);
+ Direction dir = get_grob_direction (me);
bool beam = Stem::get_beam (stem);
bool flag = Stem::duration_log (stem) >= 3 && !beam;
/* beamed stems and up-stems with flags have shorter tremolos */
- return scm_from_double (((stemdir == UP && flag) || beam) ? 1.0 : 1.5);
+ return scm_from_double (((dir == UP && flag) || beam) ? 1.0 : 1.5);
}
MAKE_SCHEME_CALLBACK (Stem_tremolo, calc_style, 1)
{
Grob *me = unsmob_grob (smob);
Grob *stem = unsmob_grob (me->get_object ("stem"));
- Direction stemdir = get_grob_direction (stem);
+ Direction dir = get_grob_direction (me);
bool beam = Stem::get_beam (stem);
bool flag = Stem::duration_log (stem) >= 3 && !beam;
- return ly_symbol2scm (((stemdir == UP && flag) || beam) ? "rectangle" : "default");
+ return ly_symbol2scm (((dir == UP && flag) || beam) ? "rectangle" : "default");
}
Real
}
Stencil
-Stem_tremolo::raw_stencil (Grob *me, Real slope, Direction stemdir)
+Stem_tremolo::raw_stencil (Grob *me, Real slope, Direction dir)
{
Real ss = Staff_symbol_referencer::staff_space (me);
Real thick = robust_scm2double (me->get_property ("beam-thickness"), 1);
for (int i = 0; i < tremolo_flags; i++)
{
Stencil b (a);
- b.translate_axis (beam_translation * i * stemdir * -1, Y_AXIS);
+ b.translate_axis (beam_translation * i * dir * -1, Y_AXIS);
mol.add_stencil (b);
}
return mol;
if (!stem)
return ly_interval2scm (s1.extent (Y_AXIS));
- Direction stemdir = get_grob_direction (stem);
- if (stemdir == 0)
- stemdir = UP;
+ Direction dir = get_grob_direction (me);
Spanner *beam = Stem::get_beam (stem);
Interval ph = stem->pure_height (stem, 0, INT_MAX);
Stem_info si = Stem::get_stem_info (stem);
- ph[-stemdir] = si.shortest_y_;
+ ph[-dir] = si.shortest_y_;
int beam_count = Stem::beam_multiplicity (stem).length () + 1;
Real beam_translation = get_beam_translation (me);
- ph = ph - stemdir * max (beam_count, 1) * beam_translation;
+ ph = ph - dir * max (beam_count, 1) * beam_translation;
ph = ph - ph.center ();
return ly_interval2scm (ph);
return Stencil ();
}
- Direction stemdir = get_grob_direction (stem);
- if (!stemdir)
- stemdir = UP;
+ Direction dir = get_grob_direction (me);
bool whole_note = Stem::duration_log (stem) <= 0;
/* for a whole note, we position relative to the notehead, so we want the
stencil aligned on the flag closest to the head */
- Direction stencil_dir = whole_note ? -stemdir : stemdir;
+ Direction stencil_dir = whole_note ? -dir : dir;
return raw_stencil (me, slope, stencil_dir);
}
return scm_from_double (y_offset (me, true));
}
+MAKE_SCHEME_CALLBACK (Stem_tremolo, calc_direction, 1);
+SCM
+Stem_tremolo::calc_direction (SCM smob)
+{
+ Item *me = unsmob_item (smob);
+
+ Item *stem = unsmob_item (me->get_object ("stem"));
+ if (!stem)
+ return scm_from_int (CENTER);
+
+ Direction stemdir = get_grob_direction (stem);
+
+ vector<int> nhp = Stem::note_head_positions (stem);
+ /*
+ * We re-decide stem-dir if there may be collisions with other
+ * note heads in the staff.
+ */
+ Grob *maybe_nc = stem->get_parent (X_AXIS)->get_parent (X_AXIS);
+ bool whole_note = Stem::duration_log (stem) <= 0;
+ if (whole_note && Note_collision_interface::has_interface (maybe_nc))
+ {
+ Drul_array<bool> avoid_me (false, false);
+ vector<int> all_nhps = Note_collision_interface::note_head_positions (maybe_nc);
+ if (all_nhps[0] < nhp[0])
+ avoid_me[DOWN] = true;
+ if (all_nhps.back () > nhp.back ())
+ avoid_me[UP] = true;
+ if (avoid_me[stemdir])
+ {
+ stemdir = -stemdir;
+ if (avoid_me[stemdir])
+ {
+ me->warning ("Whole-note tremolo may collide with simultaneous notes.");
+ stemdir = -stemdir;
+ }
+ }
+ }
+ return scm_from_int (stemdir);
+}
+
Real
Stem_tremolo::y_offset (Grob *me, bool pure)
{
if (!stem)
return 0.0;
- Direction stemdir = get_grob_direction (stem);
- if (stemdir == 0)
- stemdir = UP;
+ Direction dir = get_grob_direction (me);
Spanner *beam = Stem::get_beam (stem);
Real beam_translation = get_beam_translation (me);
{
Interval ph = stem->pure_height (stem, 0, INT_MAX);
Stem_info si = Stem::get_stem_info (stem);
- ph[-stemdir] = si.shortest_y_;
+ ph[-dir] = si.shortest_y_;
- return (ph - stemdir * max (beam_count, 1) * beam_translation)[stemdir] - stemdir * 0.5 * me->pure_height (me, 0, INT_MAX).length ();
+ return (ph - dir * max (beam_count, 1) * beam_translation)[dir] - dir * 0.5 * me->pure_height (me, 0, INT_MAX).length ();
}
Real end_y
= (pure
- ? stem->pure_height (stem, 0, INT_MAX)[stemdir]
- : stem->extent (stem, Y_AXIS)[stemdir])
- - stemdir * max (beam_count, 1) * beam_translation
+ ? stem->pure_height (stem, 0, INT_MAX)[dir]
+ : stem->extent (stem, Y_AXIS)[dir])
+ - dir * max (beam_count, 1) * beam_translation
- Stem::beam_end_corrective (stem);
if (!beam && Stem::duration_log (stem) >= 3)
{
- end_y -= stemdir * (Stem::duration_log (stem) - 2) * beam_translation;
- if (stemdir == UP)
- end_y -= stemdir * beam_translation * 0.5;
+ end_y -= dir * (Stem::duration_log (stem) - 2) * beam_translation;
+ if (dir == UP)
+ end_y -= dir * beam_translation * 0.5;
}
bool whole_note = Stem::duration_log (stem) <= 0;
- if (whole_note)
+ if (whole_note || isinf(end_y))
{
/* we shouldn't position relative to the end of the stem since the stem
is invisible */
Real ss = Staff_symbol_referencer::staff_space (me);
vector<int> nhp = Stem::note_head_positions (stem);
- Real note_head = (stemdir == UP ? nhp.back () : nhp[0]) * ss / 2;
- end_y = note_head + stemdir * 1.5;
+ Real note_head = (dir == UP ? nhp.back () : nhp[0]) * ss / 2;
+ end_y = note_head + dir * 1.5;
}
return end_y;
/* properties */
"beam-thickness "
"beam-width "
+ "direction "
"flag-count "
"length-fraction "
"stem "