/*
- 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--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-*/
-#include <math.h>
-#include <ctype.h>
-
-#include "misc.hh"
-#include "dots.hh"
-#include "note-head.hh"
-#include "warn.hh"
-#include "font-interface.hh"
-#include "molecule.hh"
-#include "musical-request.hh"
-#include "rhythmic-head.hh"
-#include "staff-symbol-referencer.hh"
-#include "lookup.hh"
-#include "paper-def.hh"
+ 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.
-/*
- Note_head contains the code for printing note heads.
+ 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.
- Ledger lines:
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
- It also contains the ledger lines, for historical reasons. Ledger
- lines are somewhat of a PITA. In some cases, they take up no space, in
- some cases they don't:
+#include "note-head.hh"
- DO take space:
+#include <cmath>
+#include <cctype>
+#include <algorithm> // min, max
- - when ledgered notes are juxtaposed: there should be some white
- space between the ledger lines.
+using namespace std;
- - when accidentals are near: the accidentals should not be on the
- ledger lines
+#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"
- [both tips by Heinz Stolba from Universal Edition].
+static Stencil
+internal_print (Grob *me, string *font_char)
+{
+ string style = robust_symbol2string (me->get_property ("style"), "default");
- DO NOT take space into account:
+ 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"), "");
- - for basically everything else, e.g. swapping ledgered notes on
- clustered chords, spacing between ledgered and unledgered notes.
-
- TODO: fix this. It is not feasible to have a special grob for
- ledgers, since you basically don't know if there will be ledgers,
- unless you know at interpretation phase already 1. the Y-position,
- 2. the number of staff lines. It's not yet specced when both pieces
- of information are there, so for now, it is probably better to build
- special support for ledgers into the accidental and separation-item
- code.
+ Font_metric *fm = Font_interface::get_default_font (me);
- (Besides a separate ledger seems overkill. For what else would
- it be useful?)
+ 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;
-*/
+ if (stem_dir == CENTER)
+ programming_error ("must have stem dir for note head");
-Molecule
-Note_head::brew_ledger_lines (Grob *me,
- int pos,
- int interspaces,
- Interval x_extent,
- bool take_space)
-{
- Real inter_f = Staff_symbol_referencer::staff_space (me)/2;
- int lines_i = abs (pos) < interspaces
- ? 0
- : (abs (pos) - interspaces) / 2;
- Molecule molecule = Molecule();
+ idx_either = idx_directed = prefix + (stem_dir == UP ? "u" : "d");
+ out = fm->find_by_name (idx_either + suffix);
+ }
- if (lines_i)
+ if (style == "mensural"
+ || style == "neomensural"
+ || style == "petrucci"
+ || style == "baroque"
+ || style == "kievan")
{
- Real ledgerlinethickness =
- (me->get_paper ()->get_var ("ledgerlinethickness"));
- Real blotdiameter = ledgerlinethickness;
- // (me->get_paper ()->get_var ("blotdiameter"));
- Interval y_extent =
- Interval (-0.5*(ledgerlinethickness),
- +0.5*(ledgerlinethickness));
- Box ledger_line (x_extent, y_extent);
-
- Molecule proto_ledger_line =
- Lookup::roundfilledbox (ledger_line, blotdiameter);
-
- if (!take_space)
- proto_ledger_line.set_empty (true);
-
- Direction dir = (Direction)sign (pos);
- Real offs = (Staff_symbol_referencer::on_staffline (me, pos))
- ? 0.0
- : -dir * inter_f;
- for (int i = 0; i < lines_i; i++)
+ if (!Staff_symbol_referencer::on_line
+ (me,
+ robust_scm2int (me->get_property ("staff-position"), 0)))
{
- Molecule ledger_line (proto_ledger_line);
- ledger_line.translate_axis (-dir * inter_f * i * 2 + offs, Y_AXIS);
- molecule.add_molecule (ledger_line);
+ Stencil test = fm->find_by_name (idx_either + "r" + suffix);
+ if (!test.is_empty ())
+ {
+ idx_either += "r";
+ out = test;
+ }
}
}
- return molecule;
-}
-
-Molecule
-internal_brew_molecule (Grob *me, bool ledger_take_space)
-{
- SCM style = me->get_grob_property ("style");
- if (!gh_symbol_p (style))
+ if (style == "kievan"
+ && 3 == robust_scm2int (me->get_property ("duration-log"), 2))
{
- return Molecule();
+ 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");
}
- /*
- ugh: use gh_call () / scm_apply ().
-
- UGH: use grob-property.
- */
- SCM log = gh_int2scm (Note_head::get_balltype (me));
- SCM exp = scm_list_n (ly_symbol2scm ("find-notehead-symbol"), log,
- ly_quote_scm (style),
- SCM_UNDEFINED);
- SCM scm_pair = scm_primitive_eval (exp);
- SCM scm_font_char = ly_car (scm_pair);
- SCM scm_font_family = ly_cdr (scm_pair);
- String font_char = "noteheads-" + ly_scm2string (scm_font_char);
- String font_family = ly_scm2string (scm_font_family);
-
- me->set_grob_property("font-family", ly_symbol2scm (font_family.to_str0 ()));
- Molecule out =
- Font_interface::get_default_font (me)->find_by_name (font_char);
- if (out.empty_b())
- {
- warning (_f("Symbol not found, ", font_char.to_str0()));
- }
-
- int interspaces = Staff_symbol_referencer::line_count (me)-1;
- int pos = (int)rint (Staff_symbol_referencer::get_position (me));
- if (abs (pos) - interspaces > 1)
+ idx_either += suffix;
+ if (out.is_empty ())
{
- Interval hd = out.extent (X_AXIS);
- Real left_ledger_protusion = hd.length ()/4;
- Real right_ledger_protusion = left_ledger_protusion;
-
- if (unsmob_grob(me->get_grob_property ("accidental-grob")))
- {
- /*
- make a little room for accidentals.
-
- TODO: this will look silly if a chord has ledger lines,
- and only the bottom note has an accidental.
- */
-
- left_ledger_protusion *= 0.66;
- right_ledger_protusion *= 0.9;
- }
-
- Interval l_extents = Interval (hd[LEFT] - left_ledger_protusion,
- hd[RIGHT] + right_ledger_protusion);
- out.add_molecule (Note_head::brew_ledger_lines (me, pos, interspaces,
- l_extents,
- ledger_take_space));
+ 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);
}
+ else
+ *font_char = idx_either;
+
return out;
}
-
-MAKE_SCHEME_CALLBACK (Note_head,brew_molecule,1);
+/*
+ TODO: make stem X-parent of notehead.
+ */
+MAKE_SCHEME_CALLBACK (Note_head, stem_x_shift, 1);
SCM
-Note_head::brew_molecule (SCM smob)
+Note_head::stem_x_shift (SCM smob)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
+ Grob *stem = unsmob<Grob> (me->get_object ("stem"));
+ if (stem)
+ (void) stem->get_property ("positioning-done");
- /*
- ledgers don't take space. See top of file.
- */
- return internal_brew_molecule (me, false).smobbed_copy ();
+ return scm_from_int (0);
}
-/*
- Compute the width the head without ledgers.
-
- -- there used to be some code from the time that ledgers
- did take space. Nowadays, we can simply take the standard extent.
- */
-Interval
-Note_head::head_extent (Grob *me, Axis a)
+MAKE_SCHEME_CALLBACK (Note_head, print, 1);
+SCM
+Note_head::print (SCM smob)
{
- Molecule * mol = me->get_molecule();
- return mol ? mol ->extent (a) : Interval(0,0);
-}
-
-
+ 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 = Note_head::get_balltype (me);
-
- int b = (l >= 2);
-
- SCM cause = me->get_grob_property ("cause");
- SCM spitch = unsmob_music (cause)->get_mus_property ("pitch");
- Pitch* pit = unsmob_pitch (spitch);
-
- char s[2] = "a";
- s[0] = (pit->notename_ + 2)%7 + 'a';
- s[0] = toupper (s[0]);
-
- SCM charstr = scm_makfrom0str (s);
-
- SCM at = scm_list_n (ly_symbol2scm ("ez-ball"),
- charstr,
- gh_int2scm (b),
- gh_int2scm (1-b),
- SCM_UNDEFINED);
- Box bx (Interval (0, 1.0), Interval (-0.5, 0.5));
- Molecule m (bx, at);
-
- int pos = (int)rint (Staff_symbol_referencer::get_position (me));
- int interspaces = Staff_symbol_referencer::line_count (me)-1;
- if (abs (pos) - interspaces > 1)
+ Grob *me = unsmob<Grob> (smob);
+ Grob *staff = Staff_symbol_referencer::get_staff_symbol (me);
+
+ if (staff)
{
- Interval hd = m.extent (X_AXIS);
- Real hw = hd.length ()/4;
- Interval extent = Interval (hd[LEFT] - hw, hd[RIGHT] + hw);
- m.add_molecule (brew_ledger_lines (me, pos, interspaces, extent, false));
+ 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 m.smobbed_copy ();
+ 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 log = gh_int2scm (get_balltype (me));
- SCM result = gh_apply (v, scm_list_n (st, log, 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);
- result = (a == X_AXIS) ? ly_car (result) : ly_cdr (result);
-
- return gh_number_p (result) ? gh_scm2double (result) : 0.0;
-}
+ Interval v = b[a];
+ if (!v.is_empty ())
+ {
+ att[a] = (2 * (wxwy[a] - v.center ()) / v.length ());
+ }
+ }
+ }
+ return att;
+}
-int
-Note_head::get_balltype (Grob*me)
+MAKE_SCHEME_CALLBACK (Note_head, calc_stem_attachment, 1);
+SCM
+Note_head::calc_stem_attachment (SCM smob)
{
- SCM s = me->get_grob_property ("duration-log");
- return gh_number_p (s) ? gh_scm2int (s) <? 2 : 0;
+ 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,"note-head-interface",
- "Note head",
- "accidental-grob style stem-attachment-function");
+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 */
+ "duration-log "
+ "note-names "
+ "accidental-grob "
+ "ignore-ambitus "
+ "glyph-name "
+ "stem-attachment "
+ "style "
+ "ledger-positions "
+ );
projects / lilypond.git / blobdiff