/*
- arpeggio.cc -- implement Arpeggio
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2000--2015 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 2000--2007 Jan Nieuwenhuizen <janneke@gnu.org>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "arpeggio.hh"
#include "bezier.hh"
#include "font-interface.hh"
#include "grob.hh"
+#include "international.hh"
#include "lookup.hh"
#include "output-def.hh"
#include "pointer-group-interface.hh"
#include "stem.hh"
#include "warn.hh"
+static Stencil
+get_squiggle (Grob *me)
+{
+ Font_metric *fm = Font_interface::get_default_font (me);
+ Stencil squiggle = fm->find_by_name ("scripts.arpeggio");
+
+ return squiggle;
+}
+
Grob *
Arpeggio::get_common_y (Grob *me)
{
{
Grob *stem = stems[i];
common = common->common_refpoint (Staff_symbol_referencer::get_staff_symbol (stem),
- Y_AXIS);
+ Y_AXIS);
}
return common;
}
-MAKE_SCHEME_CALLBACK(Arpeggio, calc_positions, 1);
+MAKE_SCHEME_CALLBACK (Arpeggio, calc_cross_staff, 1);
+SCM
+Arpeggio::calc_cross_staff (SCM grob)
+{
+ Grob *me = unsmob<Grob> (grob);
+
+ extract_grob_set (me, "stems", stems);
+ Grob *vag = 0;
+
+ for (vsize i = 0; i < stems.size (); i++)
+ {
+ if (!i)
+ vag = Grob::get_vertical_axis_group (stems[i]);
+ else
+ {
+ if (vag != Grob::get_vertical_axis_group (stems[i]))
+ return SCM_BOOL_T;
+ }
+ }
+
+ return SCM_BOOL_F;
+}
+
+MAKE_SCHEME_CALLBACK (Arpeggio, calc_positions, 1);
SCM
Arpeggio::calc_positions (SCM grob)
{
- Grob *me = unsmob_grob (grob);
+ Grob *me = unsmob<Grob> (grob);
Grob *common = get_common_y (me);
-
+
/*
TODO:
Grob *stem = stems[i];
Grob *ss = Staff_symbol_referencer::get_staff_symbol (stem);
Interval iv = Stem::head_positions (stem);
- iv *= Staff_symbol::staff_space (ss) / 2.0;
-
- heads.unite (iv + ss->relative_coordinate (common, Y_AXIS)
- - my_y);
+ iv *= Staff_symbol_referencer::staff_space (me) / 2.0;
+ Real staff_y = ss ? ss->relative_coordinate (common, Y_AXIS) : 0.0;
+ heads.unite (iv + staff_y - my_y);
}
- heads *= 1/Staff_symbol_referencer::staff_space(me);
+ heads *= 1 / Staff_symbol_referencer::staff_space (me);
return ly_interval2scm (heads);
}
SCM
Arpeggio::print (SCM smob)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
Interval heads = robust_scm2interval (me->get_property ("positions"),
- Interval())
- * Staff_symbol_referencer::staff_space (me);
-
+ Interval ())
+ * Staff_symbol_referencer::staff_space (me);
+
if (heads.is_empty () || heads.length () < 0.5)
{
- if (!to_boolean (me->get_property ("transparent")))
- {
- me->warning ("no heads for arpeggio found?");
- me->suicide ();
- }
- return SCM_EOL;
+ if (to_boolean (me->get_property ("transparent")))
+ {
+ /*
+ This is part of a cross-staff/-voice span-arpeggio,
+ so we need to ensure `heads' is large enough to encompass
+ a single trill-element since the span-arpeggio depends on
+ its children to prevent collisions.
+ */
+ heads.unite (get_squiggle (me).extent (Y_AXIS));
+ }
+ else
+ {
+ me->warning (_ ("no heads for arpeggio found?"));
+ me->suicide ();
+ return SCM_EOL;
+ }
}
SCM ad = me->get_property ("arpeggio-direction");
dir = to_dir (ad);
Stencil mol;
- Font_metric *fm = Font_interface::get_default_font (me);
- Stencil squiggle = fm->find_by_name ("scripts.arpeggio");
+ Stencil squiggle (get_squiggle (me));
+
+ /*
+ Compensate for rounding error which may occur when a chord
+ reaches the center line, resulting in an extra squiggle
+ being added to the arpeggio stencil. This value is appreciably
+ larger than the rounding error, which is in the region of 1e-16
+ for a global-staff-size of 20, but small enough that it does not
+ interfere with smaller staff sizes.
+ */
+ const Real epsilon = 1e-3;
Stencil arrow;
if (dir)
{
- arrow = fm->find_by_name ("scripts.arpeggio.arrow." + to_string (dir));
+ Font_metric *fm = Font_interface::get_default_font (me);
+ arrow = fm->find_by_name ("scripts.arpeggio.arrow." + ::to_string (dir));
heads[dir] -= dir * arrow.extent (Y_AXIS).length ();
}
- for (Real y = heads[LEFT]; y < heads[RIGHT];
- y += squiggle.extent (Y_AXIS).length ())
+ while (mol.extent (Y_AXIS).length () + epsilon < heads.length ())
mol.add_at_edge (Y_AXIS, UP, squiggle, 0.0);
mol.translate_axis (heads[LEFT], Y_AXIS);
SCM
Arpeggio::brew_chord_bracket (SCM smob)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
Interval heads = robust_scm2interval (me->get_property ("positions"),
- Interval())
- * Staff_symbol_referencer::staff_space (me);
+ Interval ())
+ * Staff_symbol_referencer::staff_space (me);
- Real lt = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
+ Real th
+ = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"))
+ * robust_scm2double (me->get_property ("thickness"), 1);
Real sp = 1.5 * Staff_symbol_referencer::staff_space (me);
Real dy = heads.length () + sp;
- Real x = 0.7;
+ Real x = robust_scm2double (me->get_property ("protrusion"), 0.4);
- Stencil mol (Lookup::bracket (Y_AXIS, Interval (0, dy), lt, x, lt));
+ Stencil mol (Lookup::bracket (Y_AXIS, Interval (0, dy), th, x, th));
mol.translate_axis (heads[LEFT] - sp / 2.0, Y_AXIS);
return mol.smobbed_copy ();
}
SCM
Arpeggio::brew_chord_slur (SCM smob)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
+ SCM dash_definition = me->get_property ("dash-definition");
Interval heads = robust_scm2interval (me->get_property ("positions"),
- Interval())
- * Staff_symbol_referencer::staff_space (me);
-
- Real lt = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
+ Interval ())
+ * Staff_symbol_referencer::staff_space (me);
+
+ Real lt
+ = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"))
+ * robust_scm2double (me->get_property ("line-thickness"), 1.0);
+ Real th
+ = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"))
+ * robust_scm2double (me->get_property ("thickness"), 1.0);
Real dy = heads.length ();
Real height_limit = 1.5;
Real ratio = .33;
Bezier curve = slur_shape (dy, height_limit, ratio);
- curve.rotate (M_PI / 2);
+ curve.rotate (90.0);
- Stencil mol (Lookup::slur (curve, lt, lt));
+ Stencil mol (Lookup::slur (curve, th, lt, dash_definition));
mol.translate_axis (heads[LEFT], Y_AXIS);
return mol.smobbed_copy ();
}
SCM
Arpeggio::width (SCM smob)
{
- Grob *me = unsmob_grob (smob);
- Stencil arpeggio = Font_interface::get_default_font (me)->find_by_name ("scripts.arpeggio");
-
- return ly_interval2scm (arpeggio.extent (X_AXIS));
-}
-
-MAKE_SCHEME_CALLBACK (Arpeggio, height, 1);
-SCM
-Arpeggio::height (SCM smob)
-{
- return Grob::stencil_height (smob);
+ Grob *me = unsmob<Grob> (smob);
+ return ly_interval2scm (get_squiggle (me).extent (X_AXIS));
}
MAKE_SCHEME_CALLBACK (Arpeggio, pure_height, 3);
SCM
Arpeggio::pure_height (SCM smob, SCM, SCM)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
if (to_boolean (me->get_property ("cross-staff")))
return ly_interval2scm (Interval ());
- return height (smob);
+ return Grob::stencil_height (smob);
}
ADD_INTERFACE (Arpeggio,
- "Functions and settings for drawing an arpeggio symbol (a"
- " wavy line left to noteheads.",
-
- /* properties */
- "arpeggio-direction "
- "positions "
- "script-priority " // TODO: make around-note-interface
- "stems "
- );
+ "Functions and settings for drawing an arpeggio symbol.",
+
+ /* properties */
+ "arpeggio-direction "
+ "dash-definition " // TODO: make apply to non-slur arpeggios
+ "line-thickness "
+ "positions "
+ "protrusion "
+ "script-priority " // TODO: make around-note-interface
+ "stems "
+ "thickness "
+ );
projects / lilypond.git / blobdiff