source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.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 "debug.hh"
-#include "lookup.hh"
-#include "molecule.hh"
-#include "musical-request.hh"
-#include "dimension-cache.hh"
+#include "warn.hh"
+#include "font-interface.hh"
+#include "stencil.hh"
+#include "event.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)
{
- Drul_array<Molecule> endings;
- endings[LEFT] = me->lookup_l()->afm_find ("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);
+ SCM style = me->get_property ("style");
+ if (!ly_c_symbol_p (style))
+ {
+ return Stencil ();
+ }
- Real xpos = xwid [LEFT] + len;
+ SCM log = scm_int2num (Note_head::get_balltype (me));
+ SCM proc = me->get_property ("glyph-name-procedure");
+ SCM scm_font_char = scm_call_2 (proc, log, style);
+ String font_char = "noteheads-" + ly_scm2string (scm_font_char);
- while (xpos + len + thick /2 <= xwid[RIGHT])
+ Font_metric * fm = Font_interface::get_default_font (me);
+ Stencil out = fm->find_by_name (font_char);
+ if (out.is_empty ())
{
- e->translate_axis (len, X_AXIS);
- total.add_molecule (*e);
- xpos += len;
+ me->warning (_f ("note head `%s' not found", font_char.to_str0 ()));
}
- return total;
+ return out;
}
+MAKE_SCHEME_CALLBACK (Note_head,print,1);
+SCM
+Note_head::print (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ return internal_print (me).smobbed_copy ();
+}
-MAKE_SCHEME_SCORE_ELEMENT_CALLBACK(Note_head,brew_molecule);
+/*
+ Compute the width the head without ledgers.
-SCM
-Note_head::brew_molecule (SCM smob)
+ -- 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)
{
- Score_element *me = unsmob_element (smob);
- Staff_symbol_referencer_interface si (me);
+ SCM brewer = me->get_property ("print-function");
+ if (brewer == Note_head::print_proc)
+ {
+ Stencil mol = internal_print (me);
+
+ if (!mol.is_empty ())
+ return mol.extent (a);
+ }
+ else
+ {
+ Stencil * mol = me->get_stencil ();
+ if (mol)
+ return mol->extent (a) ;
+ }
- Real inter_f = si.staff_space ()/2;
- int sz = si.line_count ()-1;
- Real p = si.position_f ();
- int streepjes_i = abs (p) < sz
- ? 0
- : (abs((int)p) - sz) /2;
-
- SCM style = me->get_elt_property ("style");
- if (style == SCM_UNDEFINED)
+ return Interval (0,0);
+}
+
+/*
+ This is necessary to prevent a cyclic dependency: the appearance of
+ the ledgers depends on positioning, so the Grob::get_stencil () can
+ not be used for determining the note head extent.
+
+ */
+MAKE_SCHEME_CALLBACK (Note_head,extent,2);
+SCM
+Note_head::extent (SCM smob, SCM axis)
+{
+ Grob *me = unsmob_grob (smob);
+
+ return ly_interval2scm (head_extent (me, (Axis) ly_scm2int (axis)));
+}
+
+MAKE_SCHEME_CALLBACK (Note_head,brew_ez_stencil,1);
+SCM
+Note_head::brew_ez_stencil (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ int l = Note_head::get_balltype (me);
+
+ int b = (l >= 2);
+
+ SCM cause = me->get_property ("cause");
+ SCM spitch = unsmob_music (cause)->get_property ("pitch");
+ Pitch* pit = unsmob_pitch (spitch);
+
+ SCM idx = scm_int2num (pit->get_notename ());
+ SCM names = me->get_property ("note-names");
+ SCM charstr = SCM_EOL;
+ if (ly_c_vector_p (names))
+ charstr = scm_vector_ref (names, idx);
+ else
{
- style = ly_symbol2scm("default");
+ char s[2] = "a";
+ s[0] = (pit->get_notename () + 2)%7 + 'a';
+ s[0] = toupper (s[0]);
+ charstr = scm_makfrom0str (s);
}
- Molecule out = me->lookup_l()->afm_find (String ("noteheads-") +
- ly_scm2string (scm_eval (gh_list (ly_symbol2scm("find-notehead-symbol"),
- me->get_elt_property ("duration-log"),
- ly_quote_scm(style),
- SCM_UNDEFINED))));
+ SCM at = scm_list_n (ly_symbol2scm ("ez-ball"),
+ charstr,
+ scm_int2num (b),
+ scm_int2num (1-b),
+ SCM_UNDEFINED);
+ Box bx (Interval (0, 1.0), Interval (-0.5, 0.5));
+ Stencil m (bx, at);
+
+ return m.smobbed_copy ();
+}
+
- if (streepjes_i)
+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);
+
+ if (brewer == Note_head::print_proc)
{
- 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));
+ SCM style = me->get_property ("style");
+ if (!ly_c_symbol_p (style))
+ {
+ return 0.0;
+ }
+ SCM log = scm_int2num (Note_head::get_balltype (me));
+ SCM proc = me->get_property ("glyph-name-procedure");
+ SCM scm_font_char = scm_call_2 (proc, log, style);
+ String font_char = "noteheads-" + ly_scm2string (scm_font_char);
- ledger.set_empty (true);
- int parity = abs(int (p)) % 2;
-
- for (int i=0; i < streepjes_i; i++)
+ int k = fm->name_to_index (font_char) ;
+
+ if (k >= 0)
{
- Molecule s (ledger);
- s.translate_axis (-dir * inter_f * (i*2 + parity),
- Y_AXIS);
- out.add_molecule (s);
+ 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 ();
}
}
- return out.create_scheme();
+
+ /*
+ Fallback
+ */
+ SCM v = me->get_property ("stem-attachment-function");
+ if (!ly_c_procedure_p (v))
+ return 0.0;
+
+ SCM result = scm_call_2 (v, me->self_scm (), scm_int2num (a));
+ if (!ly_c_pair_p (result))
+ return 0.0;
+
+ result = (a == X_AXIS) ? ly_car (result) : ly_cdr (result);
+
+ return robust_scm2double (result,0);
+}
+
+int
+Note_head::get_balltype (Grob*me)
+{
+ SCM s = me->get_property ("duration-log");
+ return ly_c_number_p (s) ? ly_scm2int (s) <? 2 : 0;
}
+
+ADD_INTERFACE (Note_head,"note-head-interface",
+ "Note head",
+ "note-names glyph-name-procedure accidental-grob style stem-attachment-function");
+
projects / lilypond.git / blobdiff