source file of the GNU LilyPond music typesetter
- (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#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 "staff-symbol-referencer.hh"
+#include <cmath>
+#include <cctype>
+#include <algorithm> // min, max
-/*
- build a ledger line for small pieces.
- */
-Molecule
-Note_head::ledger_line (Interval xwid, Grob *me)
-{
- 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;
+using namespace std;
- 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);
+#include "directional-element-interface.hh"
+#include "font-interface.hh"
+#include "international.hh"
+#include "warn.hh"
+#include "grob.hh"
- Real xpos = xwid [LEFT] + len;
+static Stencil
+internal_print (Grob *me, string *font_char)
+{
+ SCM style = me->get_property ("style");
+ if (!scm_is_symbol (style))
+ style = ly_symbol2scm ("default");
- while (xpos + len + thick /2 <= xwid[RIGHT])
+ string suffix = to_string (min (robust_scm2int (me->get_property ("duration-log"), 2), 2));
+ if (style != ly_symbol2scm ("default"))
{
- e->translate_axis (len, X_AXIS);
- total.add_molecule (*e);
- xpos += len;
+ SCM gn = me->get_property ("glyph-name");
+ if (scm_is_string (gn))
+ suffix = ly_scm2string (gn);
}
- return total;
-}
-
+ Font_metric *fm = Font_interface::get_default_font (me);
-Molecule
-Note_head::ledger_lines (Grob*me, int count, Direction dir, Interval idw)
-{
- Real inter_f = Staff_symbol_referencer::staff_space (me)/2;
- Molecule ledger (ledger_line (idw, me));
+ string idx_symmetric;
+ string idx_directed;
+ string idx_either;
+ idx_symmetric = idx_either = "noteheads.s" + suffix;
+ Stencil out = fm->find_by_name (idx_symmetric);
+ if (out.is_empty ())
+ {
+ 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_directed = idx_either =
+ prefix + ((stem_dir == UP) ? "u" : "d") + suffix;
+ out = fm->find_by_name (idx_directed);
+ }
- ledger.set_empty (true);
- Real offs = (Staff_symbol_referencer::on_staffline (me))
- ? 0.0
- : -dir * inter_f;
- Molecule legs;
- for (int i=0; i < count; i++)
+ if (out.is_empty ())
{
- Molecule s (ledger);
- s.translate_axis (-dir * inter_f * i*2 + offs,
- Y_AXIS);
- legs.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);
}
+ else
+ *font_char = idx_either;
- return legs;
+ 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 *stem = unsmob_grob (me->get_object ("stem"));
+ if (stem)
+ (void) stem->get_property ("positioning-done");
- 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;
-
- SCM style = me->get_grob_property ("style");
- if (!gh_symbol_p (style))
- {
- return SCM_EOL;
- }
-
- /*
- ugh: use gh_call () / scm_apply ().
+ return scm_from_int (0);
+}
- UGH: use grob-property.
- */
- Molecule out = Font_interface::get_default_font (me)->find_by_name (String ("noteheads-") +
- ly_scm2string (scm_primitive_eval (scm_listify (ly_symbol2scm ("find-notehead-symbol"),
- me->get_grob_property ("duration-log"),
- ly_quote_scm (style),
- SCM_UNDEFINED))));
+MAKE_SCHEME_CALLBACK (Note_head, print, 1);
+SCM
+Note_head::print (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
- if (streepjes_i)
- {
- Direction dir = (Direction)sign (p);
- Interval hd = out.extent (X_AXIS);
- Real hw = hd.length ()/4;
- out.add_molecule (ledger_lines (me, streepjes_i, dir,
- Interval (hd[LEFT] - hw,
- hd[RIGHT] + hw)));
- }
-
- return out.smobbed_copy ();
+ string idx;
+ return internal_print (me, &idx).smobbed_copy ();
}
-bool
-Note_head::has_interface (Grob*m)
+Real
+Note_head::stem_attachment_coordinate (Grob *me, Axis a)
{
- return m&& m->has_interface (ly_symbol2scm ("note-head-interface"));
+ Offset off = robust_scm2offset (me->get_property ("stem-attachment"),
+ Offset (0,0));
+
+ return off [a];
}
-
-MAKE_SCHEME_CALLBACK (Note_head,brew_ez_molecule,1);
-
-SCM
-Note_head::brew_ez_molecule (SCM smob)
+Offset
+Note_head::get_stem_attachment (Font_metric *fm, string key)
{
- Grob *me = unsmob_grob (smob);
- int l = gh_scm2int (me->get_grob_property ("duration-log"));
-
- int b = (l >= 2);
- SCM at = scm_listify (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);
- int p = (int) rint (Staff_symbol_referencer::position_f (me));
-
- int sz = Staff_symbol_referencer::line_count (me)-1;
- int streepjes_i = abs (p) < sz
- ? 0
- : (abs (p) - sz) /2;
-
- if (streepjes_i)
- {
- Direction dir = (Direction)sign (p);
- Interval hd = m.extent (X_AXIS);
- Real hw = hd.length ()/4;
- m.add_molecule (ledger_lines (me, streepjes_i, dir,
- Interval (hd[LEFT] - hw,
- hd[RIGHT] + hw)));
- }
+ Offset att;
- return m.smobbed_copy ();
-}
+ int k = fm->name_to_index (key);
+ if (k >= 0)
+ {
+ 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 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;
+ return ly_offset2scm (get_stem_attachment (fm, key));
+}
- SCM st = me->get_grob_property ("style");
- SCM result = gh_apply (v, scm_listify (st, SCM_UNDEFINED));
- if (!gh_pair_p (result))
- return 0.0;
+ADD_INTERFACE (Note_head,
+ "Note head.",
+
+ /* properties */
+ "note-names "
+ "accidental-grob "
+ "glyph-name "
+ "stem-attachment "
+ "style "
+ );
- result = (a == X_AXIS) ? ly_car (result) : ly_cdr (result);
-
- return gh_number_p (result) ? gh_scm2double (result) : 0.0;
-}
projects / lilypond.git / blobdiff