source file of the GNU LilyPond music typesetter
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-
-
#ifndef MUSIC_HH
#define MUSIC_HH
-#include "virtual-methods.hh"
-#include "minterval.hh"
-#include "lily-proto.hh"
-#include "string.hh"
#include "smobs.hh"
-#include "music-constructor.hh"
-
-
-#define get_mus_property(x) internal_get_mus_property(ly_symbol2scm(x))
-#define set_mus_property(x,y) internal_set_mus_property(ly_symbol2scm (x), y)
-
-/** Music is anything that has duration and supports both time compression and
- transposition.
-
- In Lily, everything that can be thought to have a length and a pitch
- (which has a duration which can be transposed) is considered "music",
-
- Music is hierarchical:
-
- @see Music_sequence
+#include "moment.hh"
+#include "pitch.hh"
+#include "prob.hh"
+#define is_mus_type(x) internal_is_music_type (ly_symbol2scm (x))
- TODO: make a equalp function for general music.
- */
-class Music {
+class Music : public Prob
+{
public:
- Input *origin () const;
- void set_spot (Input);
+ Music (SCM init);
+ Music (Music const &m);
+ VIRTUAL_COPY_CONSTRUCTOR (Music, Music);
+
+ Input *origin () const;
+ void set_spot (Input);
- SCM internal_get_mus_property (SCM) const;
- void internal_set_mus_property (SCM , SCM val);
+ bool internal_is_music_type (SCM) const;
- virtual Pitch to_relative_octave (Pitch);
+ Stream_event *to_event () const;
- /// The duration of this piece of music
- virtual Moment length_mom () const;
- virtual Moment start_mom () const;
+ DECLARE_SCHEME_CALLBACK (relative_callback, (SCM, SCM));
+ Pitch to_relative_octave (Pitch);
+ Pitch generic_to_relative_octave (Pitch);
+ Moment get_length () const;
+ Moment start_mom () const;
void print () const;
+
/// Transpose, with the interval central C to #p#
- virtual void transpose (Pitch p);
+ void transpose (Pitch p);
/// Scale the music in time by #factor#.
- virtual void compress (Moment factor);
- VIRTUAL_COPY_CONS (Music);
- Music ();
- Music (Music const &m);
- Music (SCM);
+ void compress (Moment factor);
+
+ // Broadcast the event in a context's event-source.
+ void send_to_context (Context *c);
+
+ DECLARE_SCHEME_CALLBACK (duration_length_callback, (SCM));
+
protected:
- DECLARE_SMOBS (Music,);
- SCM immutable_property_alist_;
- SCM mutable_property_alist_;
+ virtual SCM copy_mutable_properties () const;
+ virtual void type_check_assignment (SCM, SCM) const;
+ virtual void derived_mark () const;
+protected:
+ SCM length_callback_;
+ SCM start_callback_;
+ friend SCM ly_extended_make_music (SCM, SCM);
};
+Music *unsmob_music (SCM);
+Music *make_music_by_name (SCM sym);
+SCM ly_music_deep_copy (SCM);
+SCM ly_camel_case_to_lisp_identifier (SCM name_sym);
-DECLARE_UNSMOB(Music,music);
-#endif // MUSIC_HH
-
+extern SCM ly_music_p_proc;
+/* common transposition function for music and event */
+void transpose_mutable (SCM alist, Pitch delta);
+#endif /* MUSIC_HH */