source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#define MUSIC_HH
#include "virtual-methods.hh"
-#include "input.hh"
#include "minterval.hh"
#include "lily-proto.hh"
#include "string.hh"
+#include "smobs.hh"
+#include "music-constructor.hh"
-/**
- Anything which has length or pitch.
+
+#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)
+#define is_mus_type(x) internal_is_music_type(ly_symbol2scm (x))
+
+/** 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",
+ (which has a duration which can be transposed) is considered "music",
Music is hierarchical:
- @see Music_list
+ @see Music_sequence
+
+ TODO: make a equalp function for general music.
*/
-class Music:public Input {
+class Music {
public:
- Music_list * parent_music_l_;
-
- /** The kind of iterator needed to walk this music. This doesn't
- make sense for simple (ie non-list) music, but it does no harm
- here. Yes, it did harm Music_list: you can forget to copy it.
-
- */
- String type_str_;
-
- /// what name (or look for this name)
- String id_str_;
-
- virtual MInterval time_int() const;
- virtual ~Music(){}
- void print() const;
- virtual void transpose (Melodic_req const *);
- virtual void translate (Moment dt);
- VIRTUAL_COPY_CONS(Music,Music);
- DECLARE_MY_RUNTIME_TYPEINFO;
- Music();
-protected:
- virtual void do_print() const;
+ Input *origin () const;
+ void set_spot (Input);
+
+ SCM internal_get_mus_property (SCM) const;
+ void internal_set_mus_property (SCM , SCM val);
+ SCM get_property_alist (bool mut) const;
+ bool internal_is_music_type (SCM) const;
+ virtual Pitch to_relative_octave (Pitch);
+ String name ()const;
+ /// The duration of this piece of music
+ virtual Moment get_length () const;
+ virtual Moment start_mom () const;
+ void print () const;
+ /// Transpose, with the interval central C to #p#
+ virtual 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);
+protected:
+ DECLARE_SMOBS (Music,);
+ SCM immutable_property_alist_;
+ SCM mutable_property_alist_;
+ friend SCM ly_extended_make_music(SCM,SCM);
};
-#endif // MUSIC_HH
+DECLARE_UNSMOB(Music,music);
+Music* make_music_by_name (SCM sym);
+#endif // MUSIC_HH