source file of the GNU LilyPond music typesetter
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "moment.hh"
#include "virtual-methods.hh"
#include "interpretation-context-handle.hh"
-#include "cxx-function-smob.hh"
+#include "smobs.hh"
/**
---
* Typically this reports the music to an interpretation context,
thus changing the state of the interpretation context.
- get_music (M) -- return all events starting at M (pre: no events
- before M). No side-effects
-
- skip (M) -- remove all events starting before M (leave the ones that
- start M). no side-effects on interpretation context
-
TODO:
protected:
Moment music_length_;
Moment start_mom_;
-public:
- VIRTUAL_COPY_CONS (Music_iterator);
- Moment music_length_mom () const;
+ DECLARE_SMOBS (Music_iterator,dummy);
+ Music_iterator (Music_iterator const&);
+public:
+
+ Moment music_get_length () const;
Moment music_start_mom () const;
Music_iterator ();
- Music_iterator (Music_iterator const&);
- virtual ~Music_iterator ();
/**
Do the reporting. Will try MUSIC_L_ in its own translator first,
/**
The translation unit that we this iterator is reporting to now.
*/
- Translator_group* report_to_l () const;
+ Translator_group* get_outlet () const;
void set_translator (Translator_group*);
/** Get an iterator matching the type of MUS, and use TRANS to find
an accompanying translation unit
*/
- static Music_iterator* static_get_iterator_p (Music * mus);
+ static SCM get_static_get_iterator (Music * mus);
void init_translator (Music *, Translator_group *);
-
+ void quit ();
+ void substitute_outlet (Translator_group* from, Translator_group *to);
+ virtual void derived_substitute (Translator_group*, Translator_group*);
virtual Moment pending_moment () const;
virtual bool ok () const;
- virtual SCM get_music (Moment until)const;
- virtual void process (Moment until);
- virtual void skip (Moment until);
+ virtual bool run_always () const;
+ virtual void process (Moment until);
+ virtual void derived_mark ()const;
+ virtual void construct_children ();
+
/**
Construct sub-iterators, and set the translator to
report to.
*/
- virtual void construct_children ();
- static SCM constructor_cxx_function;
+
+ DECLARE_SCHEME_CALLBACK(constructor, ());
/**
Get an iterator for MUS, inheriting the translation unit from THIS.
*/
- Music_iterator* get_iterator_p (Music *) const;
+ SCM get_iterator (Music *) const;
virtual Music_iterator* try_music_in_children (Music *) const;
- Music * music_l () const;
+ Music * get_music () const;
+protected:
+ virtual void do_quit();
private:
Interpretation_context_handle handle_;
- Music * music_l_;
+ Music * music_;
};
-/*
- implement Class::constructor, a SCM function that
- returns an encapsulated factory function.
- */
#define IMPLEMENT_CTOR_CALLBACK(Class) \
-static void * \
-Class ## _ctor (SCM) \
+LY_DEFINE_MEMBER_FUNCTION(Class,constructor, #Class "::constructor",\
+ 0,0,0,\
+ (),\
+ "Construct a @code{" #Class "} music iterator")\
{ \
- return new Class ; \
+ SCM val = (new Class)->self_scm(); \
+ scm_gc_unprotect_object (val);\
+ return val ; \
} \
-SCM Class :: constructor_cxx_function;\
-void \
-Class ## _constructor_init () \
-{ \
- SCM s = smobify_cxx_function (& Class ## _ctor); \
- scm_permanent_object (s);\
- gh_define (#Class "::constructor", s);\
- Class :: constructor_cxx_function = s;\
-}\
-ADD_SCM_INIT_FUNC (Class ## _ctor_init, Class ## _constructor_init);
-
-
-
-
-
+DECLARE_UNSMOB(Music_iterator, iterator);
#endif // MUSIC_ITERATOR_HH