/*
- notehead.cc -- implement Note_head
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ 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 <math.h>
-#include "misc.hh"
-#include "dots.hh"
#include "note-head.hh"
-#include "debug.hh"
-#include "font-interface.hh"
-#include "molecule.hh"
-#include "musical-request.hh"
+#include <cmath>
+#include <cctype>
+#include <algorithm> // min, max
+
+using namespace std;
+
+#include "directional-element-interface.hh"
+#include "font-interface.hh"
+#include "grob.hh"
+#include "international.hh"
+#include "staff-symbol.hh"
#include "staff-symbol-referencer.hh"
+#include "warn.hh"
-/*
- build a ledger line for small pieces.
- */
-Molecule
-Note_head::ledger_line (Interval xwid, Grob *me)
+static Stencil
+internal_print (Grob *me, string *font_char)
{
- Drul_array<Molecule> endings;
- endings[LEFT] = Font_interface::get_default_font (me)->find_by_name ("noteheads-ledgerending");
- Molecule *e = &endings[LEFT];
- endings[RIGHT] = *e;
-
- Real thick = e->extent (Y_AXIS).length ();
- Real len = e->extent (X_AXIS).length () - thick;
-
- Molecule total;
- Direction d = LEFT;
- do {
- endings[d].translate_axis (xwid[d] - endings[d].extent (X_AXIS)[d], X_AXIS);
- total.add_molecule (endings[d]);
- } while ((flip (&d)) != LEFT);
-
- Real xpos = xwid [LEFT] + len;
-
- while (xpos + len + thick /2 <= xwid[RIGHT])
- {
- e->translate_axis (len, X_AXIS);
- total.add_molecule (*e);
- xpos += len;
- }
+ string style = robust_symbol2string (me->get_property ("style"), "default");
- return total;
-}
+ string suffix = ::to_string (min (robust_scm2int (me->get_property ("duration-log"), 2), 2));
+ if (style != "default")
+ suffix = robust_scm2string (me->get_property ("glyph-name"), "");
+ Font_metric *fm = Font_interface::get_default_font (me);
-MAKE_SCHEME_CALLBACK (Note_head,brew_molecule,1);
+ string prefix = "noteheads.";
+ string idx_symmetric;
+ string idx_directed;
+ string idx_either = idx_symmetric = prefix + "s";
+ Stencil out = fm->find_by_name (idx_either + suffix);
+ if (out.is_empty ())
+ {
+ Grob *stem = unsmob_grob (me->get_object ("stem"));
+ Direction stem_dir = stem ? get_grob_direction (stem) : CENTER;
-SCM
-Note_head::brew_molecule (SCM smob)
-{
- Grob *me = unsmob_grob (smob);
+ if (stem_dir == CENTER)
+ programming_error ("must have stem dir for note head");
-
- Real inter_f = Staff_symbol_referencer::staff_space (me)/2;
- int sz = Staff_symbol_referencer::line_count (me)-1;
- int p = (int) rint (Staff_symbol_referencer::position_f (me));
- int streepjes_i = abs (p) < sz
- ? 0
- : (abs (p) - sz) /2;
+ idx_either = idx_directed = prefix + (stem_dir == UP ? "u" : "d");
+ out = fm->find_by_name (idx_either + suffix);
+ }
- SCM style = me->get_grob_property ("style");
- if (!gh_symbol_p (style))
+ if (style == "mensural"
+ || style == "neomensural"
+ || style == "petrucci"
+ || style == "baroque"
+ || style == "kievan")
{
- return SCM_EOL;
+ if (!Staff_symbol_referencer::on_line
+ (me,
+ robust_scm2int (me->get_property ("staff-position"), 0)))
+ {
+ Stencil test = fm->find_by_name (idx_either + "r" + suffix);
+ if (!test.is_empty ())
+ {
+ idx_either += "r";
+ out = test;
+ }
+ }
}
- /*
- ugh: use gh_call ()
-
- UGH: use grob-property.
- */
- Molecule out = Font_interface::get_default_font (me)->find_by_name (String ("noteheads-") +
- ly_scm2string (scm_eval2 (gh_list (ly_symbol2scm ("find-notehead-symbol"),
- me->get_grob_property ("duration-log"),
- ly_quote_scm (style),
- SCM_UNDEFINED),
- SCM_EOL)));
+ if (style == "kievan"
+ && 3 == robust_scm2int (me->get_property ("duration-log"), 2))
+ {
+ Grob *stem = unsmob_grob (me->get_object ("stem"));
+ Grob *beam = unsmob_grob (stem->get_object ("beam"));
+ if (beam)
+ out = fm->find_by_name (idx_either + "2kievan");
+ }
- if (streepjes_i)
+ idx_either += suffix;
+ if (out.is_empty ())
{
- Direction dir = (Direction)sign (p);
- Interval hd = out.extent (X_AXIS);
- Real hw = hd.length ()/4;
- Molecule ledger (ledger_line (Interval (hd[LEFT] - hw,
- hd[RIGHT] + hw), me));
-
-
- ledger.set_empty (true);
- Real offs = (Staff_symbol_referencer::on_staffline (me))
- ? 0.0
- : -dir * inter_f;
-
- for (int i=0; i < streepjes_i; i++)
- {
- Molecule s (ledger);
- s.translate_axis (-dir * inter_f * i*2 + offs,
- Y_AXIS);
- out.add_molecule (s);
- }
+ me->warning (_f ("none of note heads `%s' or `%s' found",
+ idx_symmetric.c_str (), idx_directed.c_str ()));
+ out = Stencil (Box (Interval (0, 0), Interval (0, 0)), SCM_EOL);
}
- return out.smobbed_copy ();
+ else
+ *font_char = idx_either;
+
+ return out;
}
-bool
-Note_head::has_interface (Grob*m)
+/*
+ TODO: make stem X-parent of notehead.
+ */
+MAKE_SCHEME_CALLBACK (Note_head, stem_x_shift, 1);
+SCM
+Note_head::stem_x_shift (SCM smob)
{
- return m&& m->has_interface (ly_symbol2scm ("note-head-interface"));
+ Grob *me = unsmob_grob (smob);
+ Grob *stem = unsmob_grob (me->get_object ("stem"));
+ if (stem)
+ (void) stem->get_property ("positioning-done");
+
+ return scm_from_int (0);
}
+MAKE_SCHEME_CALLBACK (Note_head, print, 1);
+SCM
+Note_head::print (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
-MAKE_SCHEME_CALLBACK (Note_head,brew_ez_molecule,1);
+ string idx;
+ return internal_print (me, &idx).smobbed_copy ();
+}
+MAKE_SCHEME_CALLBACK (Note_head, include_ledger_line_height, 1);
SCM
-Note_head::brew_ez_molecule (SCM smob)
+Note_head::include_ledger_line_height (SCM smob)
{
Grob *me = unsmob_grob (smob);
- int l = gh_scm2int (me->get_grob_property ("duration-log"));
-
- int b = (l >= 2);
- SCM at = gh_list (ly_symbol2scm ("ez-ball"),
- me->get_grob_property ("note-character"),
- gh_int2scm (b),
- gh_int2scm (1-b),
- SCM_UNDEFINED);
- Box bx (Interval (0, 1.0), Interval (-0.5, 0.5));
- Molecule m (bx, at);
-
- return m.smobbed_copy ();
-}
+ Grob *staff = Staff_symbol_referencer::get_staff_symbol (me);
+ if (staff)
+ {
+ Real ss = Staff_symbol::staff_space (staff);
+ Interval lines = Staff_symbol::line_span (staff) * (ss / 2.0);
+ Real my_pos = Staff_symbol_referencer::get_position (me) * ss / 2.0;
+ Interval my_ext = me->extent (me, Y_AXIS) + my_pos;
+
+ // The +1 and -1 come from the fact that we only want to add
+ // the interval between the note and the first ledger line, not
+ // the whole interval between the note and the staff.
+ Interval iv (min (0.0, lines[UP] - my_ext[DOWN] + 1),
+ max (0.0, lines[DOWN] - my_ext[UP] - 1));
+ return ly_interval2scm (iv);
+ }
+
+ return ly_interval2scm (Interval (0, 0));
+}
Real
Note_head::stem_attachment_coordinate (Grob *me, Axis a)
{
- SCM v = me->get_grob_property ("stem-attachment-function");
+ Offset off = robust_scm2offset (me->get_property ("stem-attachment"),
+ Offset (0, 0));
- if (!gh_procedure_p (v))
- return 0.0;
+ return off [a];
+}
- SCM st = me->get_grob_property ("style");
- SCM result = gh_apply (v, gh_list (st, SCM_UNDEFINED));
+Offset
+Note_head::get_stem_attachment (Font_metric *fm, const string &key)
+{
+ Offset att;
- if (!gh_pair_p (result))
- return 0.0;
+ int k = fm->name_to_index (key);
+ if (k >= 0)
+ {
+ Box b = fm->get_indexed_char_dimensions (k);
+ Offset wxwy = fm->attachment_point (key);
+ for (int i = X_AXIS; i < NO_AXES; i++)
+ {
+ Axis a = Axis (i);
+
+ Interval v = b[a];
+ if (!v.is_empty ())
+ {
+ att[a] = (2 * (wxwy[a] - v.center ()) / v.length ());
+ }
+ }
+ }
- result = (a == X_AXIS) ? gh_car (result) : gh_cdr (result);
-
- return gh_number_p (result) ? gh_scm2double (result) : 0.0;
+ return att;
}
+
+MAKE_SCHEME_CALLBACK (Note_head, calc_stem_attachment, 1);
+SCM
+Note_head::calc_stem_attachment (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ Font_metric *fm = Font_interface::get_default_font (me);
+ string key;
+ internal_print (me, &key);
+
+ return ly_offset2scm (get_stem_attachment (fm, key));
+}
+
+ADD_INTERFACE (Note_head,
+ "A note head. There are many possible values for"
+ " @code{style}. For a complete list, see"
+ " @ruser{Note head styles}.",
+
+ /* properties */
+ "note-names "
+ "accidental-grob "
+ "glyph-name "
+ "stem-attachment "
+ "style "
+ );
+
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