source file of the GNU LilyPond music typesetter
- (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
Grob *stem = first_normal_stem (me);
/*
- ugh: stems[0] case happens for chord tremolo.
+ This happens for chord tremolos.
*/
- dir = to_dir ((stem ? stem : stems[0])->get_property ("default-direction"));
+ if (!stem)
+ stem = stems[0];
+
+ if (is_direction (stem->get_property_data ("direction")))
+ dir = to_dir (stem->get_property_data ("direction"));
+ else
+ dir = to_dir (stem->get_property ("default-direction"));
}
}
}
#if (DEBUG_BEAM_SCORING)
- SCM quant_score = me->get_property ("quant-score");
- SCM debug = me->layout ()->lookup_variable (ly_symbol2scm ("debug-beam-scoring"));
- if (to_boolean (debug) && scm_is_string (quant_score))
+ SCM annotation = me->get_property ("annotation");
+ if (!scm_is_string (annotation))
+ {
+ SCM debug = me->layout ()->lookup_variable (ly_symbol2scm ("debug-beam-scoring"));
+ if (to_boolean (debug))
+ annotation = me->get_property ("quant-score");
+ }
+
+ if (scm_is_string (annotation))
{
extract_grob_set (me, "stems", stems);
Direction stem_dir = stems.size () ? to_dir (stems[0]->get_property ("direction")) : UP;
Stencil score = *unsmob_stencil (Text_interface::interpret_markup
- (me->layout ()->self_scm (), properties, quant_score));
+ (me->layout ()->self_scm (), properties, annotation));
if (!score.is_empty ())
- the_beam.add_at_edge (Y_AXIS, stem_dir, score, 1.0);
+ {
+ score.translate_axis (me->relative_coordinate(commonx, X_AXIS), X_AXIS);
+ the_beam.add_at_edge (Y_AXIS, stem_dir, score, 1.0);
+ }
}
#endif
}
+Interval
+Beam::no_visible_stem_positions (Grob *me, Interval default_value)
+{
+ extract_grob_set (me, "stems", stems);
+ if (stems.empty ())
+ return default_value;
+
+ Interval head_positions;
+ Slice multiplicity;
+ for (vsize i = 0; i < stems.size(); i++)
+ {
+ head_positions.unite (Stem::head_positions (stems[i]));
+ multiplicity.unite (Stem::beam_multiplicity (stems[i]));
+ }
+
+ Direction dir = get_grob_direction (me);
+ Real y = head_positions[dir]
+ * 0.5 * Staff_symbol_referencer::staff_space (me)
+ + dir * get_beam_translation (me) * (multiplicity.length () + 1);
+
+ y /= Staff_symbol_referencer::staff_space (me);
+ return Interval (y,y);
+}
+
/*
Compute a first approximation to the beam slope.
int count = normal_stem_count (me);
Interval pos (0,0);
if (count < 1)
- return ly_interval2scm (pos);
+ return ly_interval2scm (no_visible_stem_positions (me, pos));
vector<Real> x_posns;
extract_grob_set (me, "normal-stems", stems);
for normal beams, but for tremolo beams it looks silly otherwise.
*/
if (gap
- && !Stem::is_invisible (s))
+ && !Stem::is_invisible (s))
stem_y += thick * 0.5 * get_grob_direction (s);
/*
}
ADD_INTERFACE (Beam,
-
- "A beam. \n\n"
- "The @code{thickness} property is the weight of beams, "
- "measured in staffspace. The @code{direction} "
- "property is not user-serviceable. Use "
- "the @code{direction} property of @code{Stem} instead. "
-
- ,
+ "A beam.\n"
+ "\n"
+ "The @code{thickness} property is the weight of beams,"
+ " measured in staffspace. The @code{direction} property is"
+ " not user-serviceable. Use the @code{direction} property"
+ " of @code{Stem} instead.",
/* properties */
+ "annotation "
"auto-knee-gap "
"beamed-stem-shorten "
"beaming "
"concaveness "
"damping "
"details "
- "direction "
+ "direction "
"gap "
"gap-count "
"grow-direction "