/*
- 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--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-*/
-#include <math.h>
-#include <ctype.h>
-
-#include "staff-symbol.hh"
-#include "misc.hh"
-#include "dots.hh"
-#include "note-head.hh"
-#include "warn.hh"
-#include "font-interface.hh"
-#include "molecule.hh"
-#include "event.hh"
-#include "rhythmic-head.hh"
-#include "staff-symbol-referencer.hh"
-#include "lookup.hh"
-#include "paper-def.hh"
-
-/*
- Note_head contains the code for printing note heads.
+ 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.
- Ledger lines:
+ 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.
- 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:
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
- DO take space:
+#include "note-head.hh"
- - when ledgered notes are juxtaposed: there should be some white
- space between the ledger lines.
+#include <cmath>
+#include <cctype>
+#include <algorithm> // min, max
- - when accidentals are near: the accidentals should not be on the
- ledger lines
+using namespace std;
- [both tips by Heinz Stolba from Universal Edition].
+#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"
- DO NOT take space into account:
+static Stencil
+internal_print (Grob *me, string *font_char)
+{
+ string style = robust_symbol2string (me->get_property ("style"), "default");
- - 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.
+ 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"), "");
- (Besides a separate ledger seems overkill. For what else would
- it be useful?)
+ Font_metric *fm = Font_interface::get_default_font (me);
-*/
+ 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;
-/*
- TODO: ledger lines are also a property of the staff. Maybe move them
- to there?
- */
-Molecule
-Note_head::brew_ledger_lines (Grob *me,
- int pos,
- int interspaces,
- Interval x_extent,
- Real left_shorten,
- bool take_space)
-{
- Grob *staff = Staff_symbol_referencer::get_staff_symbol (me);
- Real inter_f = Staff_symbol_referencer::staff_space (me)/2;
- int line_count = (abs (pos) < interspaces)
- ? 0
- : (abs (pos) - interspaces) / 2;
- Molecule molecule = Molecule();
+ if (stem_dir == CENTER)
+ programming_error ("must have stem dir for note head");
+ idx_either = idx_directed = prefix + (stem_dir == UP ? "u" : "d");
+ out = fm->find_by_name (idx_either + suffix);
+ }
- if (line_count)
+ if (style == "mensural"
+ || style == "neomensural"
+ || style == "petrucci"
+ || style == "baroque"
+ || style == "kievan")
{
- Real ledgerlinethickness =
- Staff_symbol::get_ledger_line_thickness (staff);
- Real blotdiameter = ledgerlinethickness;
- Interval y_extent =
- Interval (-0.5*(ledgerlinethickness),
- +0.5*(ledgerlinethickness));
- Molecule proto_ledger_line =
- Lookup::round_filled_box (Box (x_extent, y_extent), blotdiameter);
-
- x_extent[LEFT] += left_shorten;
- Molecule proto_first_line =
- Lookup::round_filled_box (Box (x_extent, y_extent), blotdiameter);
-
- if (!take_space)
+ if (!Staff_symbol_referencer::on_line
+ (me,
+ robust_scm2int (me->get_property ("staff-position"), 0)))
{
- proto_ledger_line.set_empty (true);
- proto_first_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 < line_count; i++)
- {
- Molecule ledger_line ((i == 0)
- ? proto_first_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 with_ledgers)
-{
- 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");
}
- SCM log = gh_int2scm (Note_head::get_balltype (me));
- SCM proc = me->get_grob_property ("glyph-name-procedure");
- SCM scm_font_char = scm_call_2 (proc, log, style);
- String font_char = "noteheads-" + ly_scm2string (scm_font_char);
-
- Font_metric * fm = Font_interface::get_default_font (me);
- Molecule out = fm->find_by_name (font_char);
+ idx_either += suffix;
if (out.is_empty ())
{
- me->warning (_f ("note head `%s' not found", font_char.to_str0 ()));
+ 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;
- int interspaces = Staff_symbol_referencer::line_count (me)-1;
- int pos = (int)rint (Staff_symbol_referencer::get_position (me));
- if (with_ledgers && interspaces >= 0
- && abs (pos) - interspaces > 1)
- {
- Interval ledger_size = out.extent (X_AXIS);
- ledger_size.widen ( ledger_size.length ()/4);
-
- Real left_shorten =0.0;
- if (Grob * g = 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.
- */
-
- Grob *common = g->common_refpoint (me, X_AXIS);
- Real d =
- (me->extent (common, X_AXIS)[LEFT]
- +g->extent (common, X_AXIS)[RIGHT]) /2;
-
- left_shorten = (-ledger_size[LEFT] + d) >? 0 ;
-
- /*
- TODO: shorten 2 ledger lines for the case natural +
- downstem.
- */
- }
-
- out.add_molecule (Note_head::brew_ledger_lines (me, pos, interspaces,
- ledger_size,
- left_shorten,
- false));
- }
return out;
}
-
-MAKE_SCHEME_CALLBACK (Note_head,brew_molecule,1);
-SCM
-Note_head::brew_molecule (SCM smob)
-{
- Grob *me = unsmob_grob (smob);
-
- /*
- ledgers don't take space. See top of file.
- */
- return internal_brew_molecule (me, true).smobbed_copy ();
-}
-
/*
- 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.
+ TODO: make stem X-parent of notehead.
*/
-Interval
-Note_head::head_extent (Grob *me, Axis a)
+MAKE_SCHEME_CALLBACK (Note_head, stem_x_shift, 1);
+SCM
+Note_head::stem_x_shift (SCM smob)
{
- SCM brewer = me->get_grob_property ("molecule-callback");
- if (brewer == Note_head::brew_molecule_proc)
- {
- Molecule mol = internal_brew_molecule (me, false);
-
- if (!mol.is_empty ())
- return mol.extent (a);
- }
- else
- {
- Molecule * mol = me->get_molecule ();
- if (mol)
- return mol->extent (a) ;
- }
-
- return Interval (0,0);
+ 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);
}
-/*
- This is necessary to prevent a cyclic dependency: the appearance of
- the ledgers depends on positioning, so the Grob::get_molecule() can
- not be used for determining the note head extent.
-
- */
-MAKE_SCHEME_CALLBACK (Note_head,extent,2);
+MAKE_SCHEME_CALLBACK (Note_head, print, 1);
SCM
-Note_head::extent (SCM smob, SCM axis)
+Note_head::print (SCM smob)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
- return ly_interval2scm (head_extent (me, (Axis) gh_scm2int (axis)));
+ string idx;
+ return internal_print (me, &idx).smobbed_copy ();
}
-MAKE_SCHEME_CALLBACK (Note_head,brew_ez_molecule,1);
+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->get_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);
- hd.widen ( hd.length ()/4);
- m.add_molecule (brew_ledger_lines (me, pos, interspaces, hd, 0, 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 brewer = me->get_grob_property ("molecule-callback");
- Font_metric * fm = Font_interface::get_default_font (me);
-
- if (brewer == Note_head::brew_molecule_proc)
+ Offset off = robust_scm2offset (me->get_property ("stem-attachment"),
+ Offset (0, 0));
+
+ return off [a];
+}
+
+Offset
+Note_head::get_stem_attachment (Font_metric *fm, const string &key)
+{
+ Offset att;
+
+ int k = fm->name_to_index (key);
+ if (k >= 0)
{
- SCM style = me->get_grob_property ("style");
- if (!gh_symbol_p (style))
- {
- return 0.0;
- }
-
- SCM log = gh_int2scm (Note_head::get_balltype (me));
- SCM proc = me->get_grob_property ("glyph-name-procedure");
- SCM scm_font_char = scm_call_2 (proc, log, style);
- String font_char = "noteheads-" + ly_scm2string (scm_font_char);
-
- int k = fm->name_to_index (font_char) ;
-
- if (k >= 0)
- {
- Box b = fm->get_indexed_char (k);
- Offset wxwy = fm->get_indexed_wxwy (k);
- Interval v = b[a];
- if (!v.is_empty ())
- return 2 * (wxwy[a] - v.center()) / v.length ();
- }
+ 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 ());
+ }
+ }
}
-
- /*
- Fallback
- */
- SCM v = me->get_grob_property ("stem-attachment-function");
- if (!gh_procedure_p (v))
- return 0.0;
-
- SCM result = scm_call_2 (v, me->self_scm(), gh_int2scm (a));
- if (!gh_pair_p (result))
- return 0.0;
-
- result = (a == X_AXIS) ? ly_car (result) : ly_cdr (result);
-
- return robust_scm2double (result,0);
+
+ 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",
- "glyph-name-procedure 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