+/*
+ rest.cc -- implement Rest
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
+
#include "rest.hh"
-#include "dimen.hh"
-#include "debug.hh"
-#include "paper-def.hh"
-#include "lookup.hh"
-#include "molecule.hh"
+#include "stencil.hh"
+#include "output-def.hh"
+#include "font-interface.hh"
+#include "dots.hh"
+#include "paper-score.hh"
+#include "staff-symbol-referencer.hh"
+#include "directional-element-interface.hh"
-Rest::Rest(int t, int d)
+// -> offset callback
+MAKE_SCHEME_CALLBACK (Rest, after_line_breaking, 1);
+SCM
+Rest::after_line_breaking (SCM smob)
{
- balltype = t;
- dots = d;
+ Grob *me = unsmob_grob (smob);
+ int bt = scm_to_int (me->get_property ("duration-log"));
+ int lc = Staff_symbol_referencer::line_count (me);
+ Real ss = Staff_symbol_referencer::staff_space (me);
+ if (lc % 2)
+ {
+ if (bt == 0 && lc > 1)
+ {
+ me->translate_axis (ss , Y_AXIS);
+ }
+ }
+ else
+ {
+ me->translate_axis (ss/2 , Y_AXIS);
+ }
+
+ Grob * d = unsmob_grob (me->get_property ("dot"));
+ if (d && bt > 4) // UGH.
+ {
+ d->set_property ("staff-position",
+ scm_int2num ((bt == 7) ? 4 : 3));
+ }
+ if (d && bt >= -1 && bt <= 1) // UGH again.
+ {
+ d->set_property ("staff-position",
+ scm_int2num ((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 try_ledgers)
+{
+ bool ledgered_b = false;
+ if (try_ledgers && (balltype == 0 || balltype == 1))
+ {
+ Real rad = Staff_symbol_referencer::staff_radius (me) * 2.0;
+ Real pos = Staff_symbol_referencer::get_position (me);
+
+ /*
+ Figure out when the rest is far enough outside the staff. This
+ could bemore generic, but hey, we understand this even after
+ dinner.
+ */
+ ledgered_b |= (balltype == 0) && (pos >= +rad + 2 || pos < -rad);
+ ledgered_b |= (balltype == 1) && (pos <= -rad - 2 || pos > +rad);
+ }
+
+ String actual_style (style.to_str0 ());
+
+ if ((style == "mensural") || (style == "neomensural"))
+ {
+
+ /*
+ 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/neomensural 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 = "";
+ }
-void
-Rest::do_print()const
+ return ("rests." + to_string (balltype) + (ledgered_b ? "o" : "")
+ + actual_style);
+}
+
+
+MAKE_SCHEME_CALLBACK (Rest, print, 1);
+
+SCM
+Rest::brew_internal_stencil (SCM smob, bool ledgered)
{
-#ifndef NPRINT
- mtor << "Rest "<<balltype<< "dots " << dots;
- Item::print();
-#endif
+ Grob* me = unsmob_grob (smob);
+
+ SCM balltype_scm = me->get_property ("duration-log");
+ if (!scm_is_number (balltype_scm))
+ return Stencil ().smobbed_copy ();
+
+ int balltype = scm_to_int (balltype_scm);
+
+ String style;
+ SCM style_scm = me->get_property ("style");
+ if (scm_is_symbol (style_scm))
+ style = ly_scm2string (scm_symbol_to_string (style_scm));
+
+ Font_metric *fm = Font_interface::get_default_font (me);
+ String font_char = glyph_name (me, balltype, style, ledgered);
+ Stencil out = fm->find_by_name (font_char);
+ if (out.is_empty ())
+ me->warning (_f ("rest `%s' not found", font_char.to_str0 ()));
+
+ return out.smobbed_copy ();
}
-Molecule*
-Rest::brew_molecule_p()const
+SCM
+Rest::print (SCM smob)
{
- Paper_def *p =paper();
-
- Symbol s;
- s = p->lookup_p_->rest(balltype);
-
- Molecule *m = new Molecule(Atom(s));
- if (dots) {
- Symbol d =p->lookup_p_->dots(dots);
- Molecule dm;
- dm.add(Atom(d));
- m->add_right(dm);
- }
- return m;
+ return brew_internal_stencil (smob, true);
}
+MAKE_SCHEME_CALLBACK (Rest, extent_callback, 2);
+/*
+ We need the callback. The real stencil 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) scm_to_int (ax);
+
+ /*
+ Don't want ledgers: ledgers depend on Y position, which depends on
+ rest collision, which depends on stem size which depends on beam
+ slop of opposite note column.
+
+ consequence: we get too small extents and potential collisions
+ with ledgered rests.
+ */
+ SCM m = brew_internal_stencil (smob, a != X_AXIS);
+ return ly_interval2scm (unsmob_stencil (m)->extent (a));
+}
+
+MAKE_SCHEME_CALLBACK (Rest, polyphonic_offset_callback, 2);
+SCM
+Rest::polyphonic_offset_callback (SCM smob, SCM)
+{
+ Grob* me = unsmob_grob (smob);
+ if (scm_is_number (me->get_property ("staff-position")))
+ return scm_make_real (0);
+
+ Direction d = get_grob_direction (me);
+ Real off = 2 * d ;
+ if (off)
+ off *= Staff_symbol_referencer::staff_space (me);
+
+ return scm_make_real (off);
+}
+
+ADD_INTERFACE (Rest, "rest-interface",
+ "A rest symbol.",
+ "style direction minimum-distance");
+
projects / lilypond.git / blobdiff