source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2001 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 "axis-group-element.hh"
#include "paper-score.hh"
#include "staff-symbol-referencer.hh"
-
-void
-Rest::do_post_processing ()
+// -> offset callback
+MAKE_SCHEME_CALLBACK (Rest,after_line_breaking,1);
+SCM
+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"));
+ if (bt == 0)
{
- Staff_symbol_referencer_interface si (this);
- si.set_position (si.position_f () + 2);
+ me->translate_axis (Staff_symbol_referencer::staff_space (me) , Y_AXIS);
}
-
- Dots * d = dots_l ();
- if (d && balltype_i () > 4) // UGH.
+
+ Grob * d = unsmob_grob (me->get_grob_property ("dot"));
+ if (d && bt > 4) // UGH.
{
- /*
- UGH.
- */
- staff_symbol_referencer (d)
- .set_position ((balltype_i () == 7) ? 4 : 3);
+ d->set_grob_property ("staff-position",
+ gh_int2scm ((bt == 7) ? 4 : 3));
}
+
+ return SCM_UNSPECIFIED;
}
+/*
+ make this function easily usable in C++
+ */
-Molecule *
-Rest::do_brew_molecule_p () const
+String
+Rest::glyph_name (Grob * me, int balltype, String style)
{
bool ledger_b =false;
- if (balltype_i () == 0 || balltype_i () == 1)
+ if (balltype == 0 || balltype == 1)
{
- Staff_symbol_referencer_interface si(this);
- ledger_b = abs(si.position_f () - (2* balltype_i () - 1))
- > si.line_count ();
+ Real rad = Staff_symbol_referencer::staff_radius (me) * 2.0;
+ Real pos = Staff_symbol_referencer::position_f (me);
+
+ /*
+ Figure out when the rest is far enough outside the staff. This
+ could bemore generic, but hey, we understand this even after
+ dinner.
+
+ */
+ ledger_b = ledger_b || (balltype == 0 && (pos >= rad +2 || pos < -rad ));
+ ledger_b = ledger_b || (balltype == 1 &&
+ (pos <= -rad -2 || pos > rad));
}
+ return ("rests-") + to_str (balltype)
+ + (ledger_b ? "o" : "") + style;
+}
+
+
+
+
+MAKE_SCHEME_CALLBACK (Rest,brew_molecule,1);
+
+SCM
+Rest::brew_internal_molecule (SCM smob)
+{
+ Grob* me = unsmob_grob (smob);
+
+ SCM balltype_scm = me->get_grob_property ("duration-log");
+ if (!gh_number_p (balltype_scm))
+ return Molecule ().smobbed_copy ();
+ int balltype = gh_scm2int (balltype_scm);
+
String style;
- SCM style_sym =get_elt_property ("style");
- if (balltype_i () >= 2 &&gh_string_p ( style_sym))
+ SCM style_sym =me->get_grob_property ("style");
+ if (gh_symbol_p (style_sym))
{
- style = ly_scm2string (style_sym);
+ style = ly_scm2string (scm_symbol_to_string (style_sym));
}
- String idx = ("rests-") + to_str (balltype_i ()) + (ledger_b ? "o" : "") + style;
-
- return new Molecule(lookup_l ()->afm_find (idx));
+ String idx = glyph_name (me, balltype, style);
+ return Font_interface::get_default_font (me)->find_by_name (idx).smobbed_copy ();
}
+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));
+}
-
+bool
+Rest::has_interface (Grob*m)
+{
+ return m && m->has_interface (ly_symbol2scm ("rest-interface"));
+}