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 "molecule.hh"
#include "paper-def.hh"
-#include "lookup.hh"
+#include "font-interface.hh"
#include "rest.hh"
#include "dots.hh"
#include "paper-score.hh"
#include "staff-symbol-referencer.hh"
// -> offset callback
-GLUE_SCORE_ELEMENT(Rest,after_line_breaking);
+MAKE_SCHEME_CALLBACK (Rest,after_line_breaking,1);
SCM
-Rest::member_after_line_breaking ()
+Rest::after_line_breaking (SCM smob)
{
- if (balltype_i () == 0)
+ Grob *me = unsmob_grob (smob);
+ int bt = gh_scm2int (me->get_grob_property ("duration-log"));
+ int lc = Staff_symbol_referencer::line_count (me);
+ Real ss = Staff_symbol_referencer::staff_space (me);
+ if(lc % 2)
{
- Staff_symbol_referencer_interface si (this);
- si.set_position (si.position_f () + 2);
+ if (bt == 0 && lc > 1)
+ {
+ me->translate_axis (ss , Y_AXIS);
+ }
}
- Item * d = dots_l ();
- if (d && balltype_i () > 4) // UGH.
+ else
{
+ me->translate_axis (ss/2 , Y_AXIS);
+ }
+
+ Grob * d = unsmob_grob (me->get_grob_property ("dot"));
+ if (d && bt > 4) // UGH.
+ {
+ d->set_grob_property ("staff-position",
+ gh_int2scm ((bt == 7) ? 4 : 3));
+ }
+ if (d && bt >= -1 && bt <= 1) // UGH again.
+ {
+ d->set_grob_property ("staff-position",
+ gh_int2scm ((bt == 0) ? -1 : 1));
+ }
+ return SCM_UNSPECIFIED;
+}
+
+/*
+ make this function easily usable in C++
+ */
+String
+Rest::glyph_name (Grob *me, int balltype, String style)
+{
+ bool ledgered_b = false;
+
+ if (balltype == 0 || balltype == 1)
+ {
+ Real rad = Staff_symbol_referencer::staff_radius (me) * 2.0;
+ Real pos = Staff_symbol_referencer::get_position (me);
+
/*
- UGH.
+ Figure out when the rest is far enough outside the staff. This
+ could bemore generic, but hey, we understand this even after
+ dinner.
*/
- staff_symbol_referencer (d)
- .set_position ((balltype_i () == 7) ? 4 : 3);
+ ledgered_b |= (balltype == 0) && (pos >= +rad + 2 || pos < -rad);
+ ledgered_b |= (balltype == 1) && (pos <= -rad - 2 || pos > +rad);
}
- return SCM_UNDEFINED;
+ String actual_style (style.to_str0 ());
+
+ if ((style == "mensural") || (style == "neo_mensural")) {
+
+ /*
+ FIXME: Currently, ancient font does not provide ledgered rests;
+ hence the "o" suffix in the glyph name is bogus. But do we need
+ ledgered rests at all now that we can draw ledger lines with
+ variable width, length and blotdiameter? -- jr
+ */
+ ledgered_b = 0;
+
+ /*
+ There are no 32th/64th/128th mensural/neo_mensural rests. In
+ these cases, revert back to default style.
+ */
+ if (balltype > 4)
+ actual_style = "";
+ }
+
+ if ((style == "classical") && (balltype != 2)) {
+ /*
+ classical style: revert back to default style for any rest other
+ than quarter rest
+ */
+ actual_style = "";
+ }
+
+ if (style == "default") {
+ /*
+ Some parts of lily still prefer style "default" over "".
+ Correct this here. -- jr
+ */
+ actual_style = "";
+ }
+
+ return ("rests-") + to_string (balltype) + (ledgered_b ? "o" : "") + actual_style;
}
-MAKE_SCHEME_SCORE_ELEMENT_CALLBACK(Rest,brew_molecule)
+MAKE_SCHEME_CALLBACK (Rest,brew_molecule,1);
-SCM
-Rest::brew_molecule (SCM smob)
+SCM
+Rest::brew_internal_molecule (SCM smob)
{
- Score_element* sc = unsmob_element (smob);
-
- bool ledger_b =false;
+ Grob* me = unsmob_grob (smob);
+
+ SCM balltype_scm = me->get_grob_property ("duration-log");
+ if (!gh_number_p (balltype_scm))
+ return Molecule ().smobbed_copy ();
- SCM balltype = sc->get_elt_property ("duration-log");
+ int balltype = gh_scm2int (balltype_scm);
- if (balltype == gh_int2scm (0) || balltype == gh_int2scm (1))
+ String style;
+ SCM style_scm = me->get_grob_property ("style");
+ if (gh_symbol_p (style_scm))
{
- Staff_symbol_referencer_interface si(sc);
- ledger_b = abs(si.position_f () - (2* gh_scm2int (balltype) - 1))
- > si.line_count ();
+ style = ly_scm2string (scm_symbol_to_string (style_scm));
}
-
- String style;
- SCM style_sym =sc->get_elt_property ("style");
- if (gh_scm2int (balltype) >= 2 && gh_string_p (style_sym))
+
+ Font_metric *fm = Font_interface::get_default_font (me);
+ String font_char = glyph_name (me, balltype, style);
+ Molecule out = fm->find_by_name (font_char);
+ if (out.is_empty ())
{
- style = ly_scm2string (style_sym);
+ me->warning (_f ("rest `%s' not found, ", font_char.to_str0 ()));
}
- String idx = ("rests-") + to_str (gh_scm2int (balltype))
- + (ledger_b ? "o" : "") + style;
+ return out.smobbed_copy();
+}
- return sc-> lookup_l ()->afm_find (idx).create_scheme();
+SCM
+Rest::brew_molecule (SCM smob)
+{
+ return brew_internal_molecule (smob);
+}
+MAKE_SCHEME_CALLBACK (Rest,extent_callback,2);
+/*
+ We need the callback. The real molecule has ledgers depending on
+ Y-position. The Y-position is known only after line breaking. */
+SCM
+Rest::extent_callback (SCM smob, SCM ax)
+{
+ Axis a = (Axis) gh_scm2int (ax);
+ SCM m = brew_internal_molecule (smob);
+ return ly_interval2scm (unsmob_molecule (m)->extent (a));
}
-Rest::Rest (SCM s)
- : Rhythmic_head (s)
-{
-}
+ADD_INTERFACE (Rest,"rest-interface",
+ "a rest",
+ "style minimum-distance");
projects / lilypond.git / blobdiff