source file of the GNU LilyPond music typesetter
- (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include <math.h>
-#include <ctype.h>
-#include "misc.hh"
-#include "dots.hh"
#include "note-head.hh"
-#include "warn.hh"
+
+#include <cmath>
+#include <cctype>
+#include <algorithm> // min, max
+using namespace std;
+
+#include "directional-element-interface.hh"
+#include "dots.hh"
#include "font-interface.hh"
-#include "molecule.hh"
-#include "event.hh"
+#include "international.hh"
+#include "lookup.hh"
+#include "misc.hh"
+#include "music.hh"
+#include "output-def.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.
-
- Ledger lines:
-
- 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:
-
- DO take space:
-
- - when ledgered notes are juxtaposed: there should be some white
- space between the ledger lines.
-
- - when accidentals are near: the accidentals should not be on the
- ledger lines
-
- [both tips by Heinz Stolba from Universal Edition].
-
- DO NOT take space into account:
-
- - 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.
-
- (Besides a separate ledger seems overkill. For what else would
- it be useful?)
-
-*/
+#include "staff-symbol.hh"
+#include "warn.hh"
-/*
- 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,
- bool take_space)
+static Stencil
+internal_print (Grob *me, string *font_char)
{
- Real inter_f = Staff_symbol_referencer::staff_space (me)/2;
- int line_count = (abs (pos) < interspaces)
- ? 0
- : (abs (pos) - interspaces) / 2;
- Molecule molecule = Molecule();
-
+ SCM style = me->get_property ("style");
+ if (!scm_is_symbol (style))
+ style = ly_symbol2scm ("default");
- if (line_count)
+ string suffix = to_string (min (robust_scm2int (me->get_property ("duration-log"), 2), 2));
+ if (style != ly_symbol2scm ("default"))
{
- Real ledgerlinethickness =
- (me->get_paper ()->get_realvar (ly_symbol2scm ("ledgerlinethickness")));
- Real blotdiameter = ledgerlinethickness;
- // (me->get_paper ()->get_realvar (ly_symbol2scm ("blotdiameter")));
- Interval y_extent =
- Interval (-0.5*(ledgerlinethickness),
- +0.5*(ledgerlinethickness));
- Box ledger_line (x_extent, y_extent);
-
- Molecule proto_ledger_line =
- Lookup::round_filled_box (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 < line_count; i++)
- {
- Molecule ledger_line (proto_ledger_line);
- ledger_line.translate_axis (-dir * inter_f * i * 2 + offs, Y_AXIS);
- molecule.add_molecule (ledger_line);
- }
+ SCM gn = me->get_property ("glyph-name");
+ if (scm_is_string (gn))
+ suffix = ly_scm2string (gn);
}
- return molecule;
-}
+ Font_metric *fm = Font_interface::get_default_font (me);
-Molecule
-internal_brew_molecule (Grob *me, bool with_ledgers)
-{
- SCM style = me->get_grob_property ("style");
- if (!gh_symbol_p (style))
+ string idx = "noteheads.s" + suffix;
+ Stencil out = fm->find_by_name (idx);
+ if (out.is_empty ())
{
- return Molecule ();
+ string prefix = "noteheads.";
+
+ 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");
+
+ idx = prefix + ((stem_dir == UP) ? "u" : "d") + suffix;
+ out = fm->find_by_name (idx);
}
- 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);
- if (out.empty_b())
+ if (out.is_empty ())
{
- me->warning (_f ("note head `%s' not found", font_char.to_str0 ()));
+ me->warning (_f ("note head `%s' not found", idx.c_str ()));
+ out = Stencil (Box (Interval (0, 0), Interval (0, 0)), SCM_EOL);
}
+ else
+ *font_char = idx;
- 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 hd = out.extent (X_AXIS);
- Real left_ledger_protusion = hd.length ()/4;
- Real right_ledger_protusion = left_ledger_protusion;
-
- 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];
-
- left_ledger_protusion = left_ledger_protusion <? (d/2);
- }
-
- 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, 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)
-{
- SCM brewer = me->get_grob_property ("molecule-callback");
- if (brewer == Note_head::brew_molecule_proc)
- {
- Molecule mol = internal_brew_molecule (me, false);
-
- if (!mol.empty_b())
- return mol.extent (a);
- }
- else
- {
- Molecule * mol = me->get_molecule ();
- if (mol)
- return mol->extent (a) ;
- }
-
- return Interval (0,0);
-}
-
-/*
- 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, stem_x_shift, 1);
SCM
-Note_head::extent (SCM smob, SCM axis)
+Note_head::stem_x_shift (SCM smob)
{
Grob *me = unsmob_grob (smob);
+ Grob *stem = unsmob_grob (me->get_object ("stem"));
+ if (stem)
+ (void) stem->get_property ("positioning-done");
- return ly_interval2scm (head_extent (me, (Axis) gh_scm2int (axis)));
+ return scm_from_int (0);
}
-MAKE_SCHEME_CALLBACK (Note_head,brew_ez_molecule,1);
+MAKE_SCHEME_CALLBACK (Note_head, print, 1);
SCM
-Note_head::brew_ez_molecule (SCM smob)
+Note_head::print (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);
+ string idx;
+ return internal_print (me, &idx).smobbed_copy ();
+}
- char s[2] = "a";
- s[0] = (pit->get_notename () + 2)%7 + 'a';
- s[0] = toupper (s[0]);
-
- SCM charstr = scm_makfrom0str (s);
+Real
+Note_head::stem_attachment_coordinate (Grob *me, Axis a)
+{
+ Offset off = robust_scm2offset (me->get_property ("stem-attachment"),
+ Offset (0,0));
- 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);
+ return off [a];
+}
- int pos = (int)rint (Staff_symbol_referencer::get_position (me));
- int interspaces = Staff_symbol_referencer::line_count (me)-1;
- if (abs (pos) - interspaces > 1)
+Offset
+Note_head::get_stem_attachment (Font_metric *fm, string key)
+{
+ Offset att;
+
+ int k = fm->name_to_index (key);
+ if (k >= 0)
{
- 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));
+ Box b = fm->get_indexed_char (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 ());
+ }
+ }
}
- return m.smobbed_copy ();
+ return att;
}
-
-Real
-Note_head::stem_attachment_coordinate (Grob *me, Axis a)
+MAKE_SCHEME_CALLBACK(Note_head, calc_stem_attachment, 1);
+SCM
+Note_head::calc_stem_attachment (SCM smob)
{
- SCM v = me->get_grob_property ("stem-attachment-function");
+ Grob *me = unsmob_grob (smob);
+ Font_metric *fm = Font_interface::get_default_font (me);
+ string key;
+ internal_print (me, &key);
- if (!gh_procedure_p (v))
- return 0.0;
-
- 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));
-
- if (!gh_pair_p (result))
- return 0.0;
-
- result = (a == X_AXIS) ? ly_car (result) : ly_cdr (result);
-
- return gh_number_p (result) ? gh_scm2double (result) : 0.0;
+ return ly_offset2scm (get_stem_attachment (fm, key));
}
int
-Note_head::get_balltype (Grob*me)
+Note_head::get_balltype (Grob *me)
{
- SCM s = me->get_grob_property ("duration-log");
- return gh_number_p (s) ? gh_scm2int (s) <? 2 : 0;
+ SCM s = me->get_property ("duration-log");
+ return scm_is_number (s) ? min (int (scm_to_int (s)), 2) : 0;
}
-ADD_INTERFACE (Note_head,"note-head-interface",
- "Note head",
- "glyph-name-procedure accidental-grob style stem-attachment-function");
+ADD_INTERFACE (Note_head, "note-head-interface",
+ "Note head",
+
+ /* properties */
+ "note-names "
+ "accidental-grob "
+ "glyph-name "
+ "stem-attachment "
+ "style "
+ );
projects / lilypond.git / blobdiff