source file of the GNU LilyPond music typesetter
- (c) 2005--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 2005--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "pitch.hh"
LY_DEFINE (ly_make_pitch, "ly:make-pitch",
2, 1, 0, (SCM octave, SCM note, SCM alter),
"@var{octave} is specified by an integer, zero for the octave"
- " containing middle@tie{}C. @var{note} is a number from 0"
- " to@tie{}6, with 0 corresponding to pitch@tie{}C and 6"
- " corresponding to pitch@tie{}B. @var{alter} is a rational"
- " number of whole tones for alteration.")
+ " containing middle@tie{}C. @var{note} is a number indexing the"
+ " global default scale, with 0 corresponding to pitch@tie{}C"
+ " and 6 usually corresponding to pitch@tie{}B. @var{alter} is"
+ " a rational number of 200-cent whole tones for alteration.")
+
{
LY_ASSERT_TYPE (scm_is_integer, octave, 1);
LY_ASSERT_TYPE (scm_is_integer, note, 2);
return pitch_interval (*r, *p).smobbed_copy ();
}
+
+/* FIXME: probably isn't the right place for this function */
+#include "context.hh"
+LY_DEFINE (ly_set_middle_C_x, "ly:set-middle-C!",
+ 1, 0, 0, (SCM context),
+ "Set the @code{middleCPosition} variable in @var{context}"
+ " based on the variables @code{middleCClefPosition} and"
+ " middleCOffset.")
+{
+ LY_ASSERT_SMOB (Context, context, 1);
+
+ Context *c = unsmob_context (context);
+ int clef_pos = robust_scm2int (c->get_property ("middleCClefPosition"), 0);
+ int offset = robust_scm2int (c->get_property ("middleCOffset"), 0);
+
+ c->set_property (ly_symbol2scm ("middleCPosition"), scm_from_int (clef_pos + offset));
+ return SCM_UNDEFINED;
+}