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arpeggio.cc -- implement Arpeggio
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source file of the GNU LilyPond music typesetter
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(c) 2000--2004 Jan Nieuwenhuizen <janneke@gnu.org>
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#include "paper-def.hh"
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(c) 2000--2006 Jan Nieuwenhuizen <janneke@gnu.org>
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#include "arpeggio.hh"
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#include "output-def.hh"
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#include "staff-symbol-referencer.hh"
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#include "staff-symbol.hh"
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#include "font-interface.hh"
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#include "lookup.hh"
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#include "pointer-group-interface.hh"
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MAKE_SCHEME_CALLBACK (Arpeggio, print, 1);
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Arpeggio::print (SCM smob)
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Arpeggio::print (SCM smob)
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Grob *me = unsmob_grob (smob);
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for (SCM s = me->get_property ("stems"); gh_pair_p (s); s = ly_cdr (s))
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extract_grob_set (me, "stems", stems);
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for (vsize i = 0; i < stems.size (); i++)
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Grob * stem = unsmob_grob (ly_car (s));
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common = common->common_refpoint (Staff_symbol_referencer::get_staff_symbol (stem),
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Grob *stem = stems[i];
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common = common->common_refpoint (Staff_symbol_referencer::get_staff_symbol (stem),
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Using stems here is not very convenient; should store noteheads
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instead, and also put them into the support. Now we will mess up
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in vicinity of a collision.
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Real my_y = me->relative_coordinate (common, Y_AXIS);
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for (SCM s = me->get_property ("stems"); gh_pair_p (s); s = ly_cdr (s))
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for (vsize i = 0; i < stems.size (); i++)
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Grob * stem = unsmob_grob (ly_car (s));
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Grob * ss = Staff_symbol_referencer::get_staff_symbol (stem);
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Interval iv =Stem::head_positions (stem);
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iv *= Staff_symbol::staff_space (ss)/2.0;
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Grob *stem = stems[i];
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Grob *ss = Staff_symbol_referencer::get_staff_symbol (stem);
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Interval iv = Stem::head_positions (stem);
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iv *= Staff_symbol::staff_space (ss) / 2.0;
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heads.unite (iv + ss->relative_coordinate (common, Y_AXIS)
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if (heads.is_empty ())
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if (heads.is_empty () || heads.length () < 0.5)
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programming_error ("Huh, no heads for arpeggio found.");
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programming_error ("no heads for arpeggio found?");
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SCM ad = me->get_property ("arpeggio-direction");
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Direction dir = CENTER;
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if (is_direction (ad))
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Font_metric *fm =Font_interface::get_default_font (me);
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Stencil squiggle = fm->find_by_name ("scripts-arpeggio");
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Font_metric *fm = Font_interface::get_default_font (me);
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Stencil squiggle = fm->find_by_name ("scripts.arpeggio");
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arrow = fm->find_by_name ("scripts-arpeggio-arrow-" + to_string (dir));
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arrow = fm->find_by_name ("scripts.arpeggio.arrow." + to_string (dir));
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heads[dir] -= dir * arrow.extent (Y_AXIS).length ();
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for (Real y= heads[LEFT] ; y < heads[RIGHT];
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y+= squiggle. extent (Y_AXIS).length ())
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mol.add_at_edge (Y_AXIS, UP,squiggle, 0.0, 0);
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for (Real y = heads[LEFT]; y < heads[RIGHT];
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y += squiggle.extent (Y_AXIS).length ())
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mol.add_at_edge (Y_AXIS, UP, squiggle, 0.0, 0);
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mol.translate_axis (heads[LEFT], Y_AXIS);
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mol.add_at_edge (Y_AXIS, dir,arrow, 0,0);
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return mol.smobbed_copy () ;
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mol.add_at_edge (Y_AXIS, dir, arrow, 0, 0);
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return mol.smobbed_copy ();
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/* Draws a vertical bracket to the left of a chord
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/* Draws a vertical bracket to the left of a chord
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Chris Jackson <chris@fluffhouse.org.uk> */
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MAKE_SCHEME_CALLBACK (Arpeggio, brew_chord_bracket, 1);
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Arpeggio::brew_chord_bracket (SCM smob)
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Arpeggio::brew_chord_bracket (SCM smob)
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Grob *me = unsmob_grob (smob);
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for (SCM s = me->get_property ("stems"); gh_pair_p (s); s = ly_cdr (s))
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extract_grob_set (me, "stems", stems);
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for (vsize i = 0; i < stems.size (); i++)
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Grob * stem = unsmob_grob (ly_car (s));
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common = common->common_refpoint (Staff_symbol_referencer::get_staff_symbol (stem),
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Grob *stem = stems[i];
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common = common->common_refpoint (Staff_symbol_referencer::get_staff_symbol (stem),
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Real my_y = me->relative_coordinate (common, Y_AXIS);
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for (SCM s = me->get_property ("stems"); gh_pair_p (s); s = ly_cdr (s))
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for (vsize i = 0; i < stems.size (); i++)
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Grob * stem = unsmob_grob (ly_car (s));
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Grob * ss = Staff_symbol_referencer::get_staff_symbol (stem);
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Grob *stem = stems[i];
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Grob *ss = Staff_symbol_referencer::get_staff_symbol (stem);
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Interval iv = Stem::head_positions (stem);
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iv *= Staff_symbol::staff_space (ss)/2.0;
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heads.unite (iv + ss->relative_coordinate (common, Y_AXIS) - my_y);
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iv *= Staff_symbol::staff_space (ss) / 2.0;
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heads.unite (iv + ss->relative_coordinate (common, Y_AXIS) - my_y);
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Real lt = me->get_paper ()->get_realvar (ly_symbol2scm ("linethickness"));
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Real lt = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
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Real sp = 1.5 * Staff_symbol_referencer::staff_space (me);
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Real dy = heads.length () + sp;
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Stencil mol (Lookup::bracket (Y_AXIS, Interval (0, dy), lt, x, lt));
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mol.translate_axis (heads[LEFT] - sp/2.0, Y_AXIS);
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mol.translate_axis (heads[LEFT] - sp / 2.0, Y_AXIS);
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return mol.smobbed_copy ();
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We have to do a callback, because print () triggers a
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vertical alignment if it is cross-staff.
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MAKE_SCHEME_CALLBACK (Arpeggio, width_callback,2);
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MAKE_SCHEME_CALLBACK (Arpeggio, width, 1);
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Arpeggio::width_callback (SCM smob, SCM axis)
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Arpeggio::width (SCM smob)
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Grob * me = unsmob_grob (smob);
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Axis a = (Axis)gh_scm2int (axis);
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assert (a == X_AXIS);
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Stencil arpeggio = Font_interface::get_default_font (me)->find_by_name ("scripts-arpeggio");
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Grob *me = unsmob_grob (smob);
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Stencil arpeggio = Font_interface::get_default_font (me)->find_by_name ("scripts.arpeggio");
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return ly_interval2scm (arpeggio.extent (X_AXIS));
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ADD_INTERFACE (Arpeggio, "arpeggio-interface",
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"Functions and settings for drawing an arpeggio symbol (a wavy line left to noteheads.",
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"stems arpeggio-direction");
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"Functions and settings for drawing an arpeggio symbol (a wavy line left to noteheads.",
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"arpeggio-direction "