-/*
+/*
moment.hh -- declare Moment
-
+
source file of the GNU LilyPond music typesetter
-
- (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+
+ (c) 1999--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
#ifndef MOMENT_HH
#define MOMENT_HH
#include "rational.hh"
/**
- Rationals with glue for Guilification;
- */
-struct Moment : public Rational
+ Musical timing (Main-timing, grace-timing) with glue for
+ Guilification;
+*/
+class Moment
{
- Moment () { self_scm_ = SCM_EOL; }
- Moment (int m) : Rational (m) {self_scm_ = SCM_EOL; }
- Moment (int m, int n) : Rational (m,n) {self_scm_ = SCM_EOL; }
- Moment (Rational m) : Rational (m) {self_scm_ = SCM_EOL; }
- ~Moment ();
-
- DECLARE_SMOBS;
-};
+ DECLARE_SIMPLE_SMOBS (Moment);
+public:
+ Moment ();
+ Moment (int m);
+ Moment (Rational, Rational);
+ Moment (Rational m);
-IMPLEMENT_ARITHMETIC_OPERATOR (Moment, / );
-IMPLEMENT_ARITHMETIC_OPERATOR (Moment, + );
-IMPLEMENT_ARITHMETIC_OPERATOR (Moment, * );
-IMPLEMENT_ARITHMETIC_OPERATOR (Moment, - );
-IMPLEMENT_ARITHMETIC_OPERATOR (Moment, % );
+ Moment operator - () const;
-INSTANTIATE_COMPARE (Moment const&, Rational::compare);
+ void operator += (Moment const &m);
+ void operator -= (Moment const &m);
+ void operator *= (Moment const &m);
+ void operator /= (Moment const &m);
+ void operator %= (Moment const &m);
-/**
- A really big time-moment.
+ Rational main_part_;
+ Rational grace_part_;
+
+ void set_infinite (int k);
+
+ bool to_bool () const;
+ I64 den () const;
+ I64 num () const;
+ /*
+ Deliver a copy of THIS as a smobified SCM
+ */
+ string to_string () const;
+ static int compare (Moment const &, Moment const &);
+ SCM as_scheme () const;
+};
+
+IMPLEMENT_ARITHMETIC_OPERATOR (Moment, +);
+IMPLEMENT_ARITHMETIC_OPERATOR (Moment, -);
+IMPLEMENT_ARITHMETIC_OPERATOR (Moment, /);
+IMPLEMENT_ARITHMETIC_OPERATOR (Moment, *);
+IMPLEMENT_ARITHMETIC_OPERATOR (Moment, %);
+
+DECLARE_UNSMOB (Moment, moment);
+int compare (Moment const &, Moment const &);
+INSTANTIATE_COMPARE (Moment const &, Moment::compare);
- Windhoze-suck-suck-suck-suck-suck-thank-you-cygnus
+Moment robust_scm2moment (SCM, Moment);
- I get tired of all these incompatibilities. Let's just assume that
- INT_MAX is really, really, really big.
+#ifdef STREAM_SUPPORT
+ostream &operator << (ostream &, Moment const &);
+#endif
- Can't we name this Saint_jut_mom (Sintjuttemis ?) */
-
-/* URG ! WE HAVE TWO RATIONAL INFINITIES! */
-const Moment infinity_mom = INT_MAX;
+bool moment_less (SCM a, SCM b);
#endif /* MOMENT_HH */