source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+#include "note-head.hh"
+
+#include <math.h>
+#include <cctype>
+#include <algorithm> // min, max
+
+using namespace std;
+
+#include "directional-element-interface.hh"
+#include "staff-symbol.hh"
#include "misc.hh"
#include "dots.hh"
-#include "note-head.hh"
-#include "debug.hh"
+#include "warn.hh"
#include "font-interface.hh"
-#include "molecule.hh"
-#include "musical-request.hh"
-
+#include "music.hh"
+#include "rhythmic-head.hh"
#include "staff-symbol-referencer.hh"
+#include "lookup.hh"
+#include "output-def.hh"
/*
- build a ledger line for small pieces.
- */
-Molecule
-Note_head::ledger_line (Interval xwid, Score_element *me)
+ clean up the mess left by ledger line handling.
+*/
+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])
+ SCM style = me->get_property ("style");
+ if (!scm_is_symbol (style))
{
- e->translate_axis (len, X_AXIS);
- total.add_molecule (*e);
- xpos += len;
+ style = ly_symbol2scm ("default");
}
- return total;
-}
+ SCM log = scm_int2num (Note_head::get_balltype (me));
+ String suffix = to_string (min (robust_scm2int (me->get_property ("duration-log"), 2), 2));
+ if (style != ly_symbol2scm ("default"))
+ {
+ SCM proc = me->get_property ("glyph-name-procedure");
+ if (ly_is_procedure (proc))
+ suffix = ly_scm2string (scm_call_2 (proc, log, style));
+ }
+ Font_metric *fm = Font_interface::get_default_font (me);
+ String idx = "noteheads.s" + suffix;
-MAKE_SCHEME_CALLBACK(Note_head,brew_molecule,1);
+ Stencil out = fm->find_by_name (idx);
+ 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");
+ String idx = prefix + ((stem_dir == UP) ? "u" : "d") + suffix;
+ out = fm->find_by_name (idx);
+ }
-SCM
-Note_head::brew_molecule (SCM smob)
-{
- Score_element *me = unsmob_element (smob);
-
-
- Real inter_f = Staff_symbol_referencer::staff_space (me)/2;
- int sz = Staff_symbol_referencer::line_count (me)-1;
- int p = (int)Staff_symbol_referencer::position_f (me);
- int streepjes_i = abs (p) < sz
- ? 0
- : (abs(p) - sz) /2;
-
- SCM style = me->get_elt_property ("style");
- if (!gh_symbol_p (style))
+ if (out.is_empty ())
+ {
+ me->warning (_f ("note head `%s' not found", idx.to_str0 ()));
+ }
+ else
{
- return SCM_EOL;
+ *font_char = idx;
}
- // ugh: use gh_call ()
- 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_elt_property ("duration-log"),
- ly_quote_scm(style),
- SCM_UNDEFINED),
- SCM_EOL)));
+ return out;
+}
- if (streepjes_i)
- {
- 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));
-
+MAKE_SCHEME_CALLBACK (Note_head, print, 1);
+SCM
+Note_head::print (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+
+ String idx;
+ return internal_print (me, &idx).smobbed_copy ();
+}
+
+Real
+Note_head::stem_attachment_coordinate (Grob *me, Axis a)
+{
+ SCM brewer = me->get_property ("print-function");
+ Font_metric *fm = Font_interface::get_default_font (me);
- ledger.set_empty (true);
- Real offs = (Staff_symbol_referencer::on_staffline (me))
- ? 0.0
- : -dir * inter_f;
+ if (brewer == Note_head::print_proc)
+ {
+ String key;
+ internal_print (me, &key);
- for (int i=0; i < streepjes_i; i++)
+ int k = fm->name_to_index (key);
+ if (k >= 0)
{
- Molecule s (ledger);
- s.translate_axis (-dir * inter_f * i*2 + offs,
- Y_AXIS);
- out.add_molecule (s);
+ Box b = fm->get_indexed_char (k);
+ Offset wxwy = fm->attachment_point (key);
+ Interval v = b[a];
+ if (!v.is_empty ())
+ return 2 * (wxwy[a] - v.center ()) / v.length ();
}
}
- return out.smobbed_copy();
+
+ /*
+ Fallback
+ */
+ SCM v = me->get_property ("stem-attachment-function");
+ if (!ly_is_procedure (v))
+ return 0.0;
+
+ SCM result = scm_call_2 (v, me->self_scm (), scm_int2num (a));
+ if (!scm_is_pair (result))
+ return 0.0;
+
+ result = (a == X_AXIS) ? scm_car (result) : scm_cdr (result);
+
+ return robust_scm2double (result, 0);
}
-bool
-Note_head::has_interface (Score_element*m)
+int
+Note_head::get_balltype (Grob *me)
{
- return m&& m->has_interface (ly_symbol2scm ("note-head-interface"));
+ SCM s = me->get_property ("duration-log");
+ return scm_is_number (s) ? min (scm_to_int (s), 2) : 0;
}
+
+ADD_INTERFACE (Note_head, "note-head-interface",
+ "Note head",
+ "note-names glyph-name-procedure accidental-grob style stem-attachment-function");
+