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 "staff-symbol-referencer.hh"
// -> offset callback
-MAKE_SCHEME_CALLBACK(Rest,after_line_breaking,1);
+MAKE_SCHEME_CALLBACK (Rest,after_line_breaking,1);
SCM
Rest::after_line_breaking (SCM smob)
{
if (d && bt > 4) // UGH.
{
d->set_grob_property ("staff-position",
- gh_int2scm ((bt == 7) ? 4 : 3));
+ gh_int2scm ((bt == 7) ? 4 : 3));
}
return SCM_UNSPECIFIED;
}
+/*
+ make this function easily usable in C++
+ */
+
+String
+Rest::glyph_name (Grob * me, int balltype, String style)
+{
+ bool ledger_b =false;
+
+ if (balltype == 0 || balltype == 1)
+ {
+ 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);
+
+
+
+MAKE_SCHEME_CALLBACK (Rest,brew_molecule,1);
SCM
Rest::brew_internal_molecule (SCM smob)
{
Grob* me = unsmob_grob (smob);
-
- bool ledger_b =false;
- SCM balltype = me->get_grob_property ("duration-log");
-
- if (balltype == gh_int2scm (0) || balltype == gh_int2scm (1))
- {
- int sz = Staff_symbol_referencer::line_count (me);
- Real dif = abs(Staff_symbol_referencer::position_f (me) - (2* gh_scm2int (balltype) - 1));
- ledger_b = dif > sz;
- }
+ 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 =me->get_grob_property ("style");
- if (gh_scm2int (balltype) >= 2 && gh_symbol_p (style_sym))
+ if (gh_symbol_p (style_sym))
{
style = ly_scm2string (scm_symbol_to_string (style_sym));
}
- String idx = ("rests-") + to_str (gh_scm2int (balltype))
- + (ledger_b ? "o" : "") + style;
-
- return Font_interface::get_default_font (me)->find_by_name (idx).smobbed_copy();
+ String idx = glyph_name (me, balltype, style);
+ return Font_interface::get_default_font (me)->find_by_name (idx).smobbed_copy ();
}
SCM
{
return brew_internal_molecule (smob);
}
-MAKE_SCHEME_CALLBACK(Rest,extent_callback,2);
+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. */