source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "lily-proto.hh"
#include "virtual-methods.hh"
#include "lily-guile.hh"
-#include "parray.hh"
#include "input.hh"
#include "smobs.hh"
-/** Make some kind of #Element#s from Requests. Elements are made by
- hierarchically grouped #Translator#s
- */
-class Translator : public Input {
+#define get_property(x) internal_get_property(ly_symbol2scm(x))
+
+
+#define TRANSLATOR_DECLARATIONS(NAME) \
+public: \
+ NAME (); \
+ VIRTUAL_COPY_CONSTRUCTOR (Translator, NAME); \
+ static SCM static_description_; \
+ virtual SCM static_translator_description () const; \
+ virtual SCM translator_description () const;
+
+/*
+ Translate music into grobs.
+*/
+class Translator
+{
void init ();
+
public:
- Music_output_def * output_def_l_;
- String type_str_;
+ Context * get_parent_context () const { return daddy_context_; }
- virtual const char *name() const;
- bool is_alias_b (String) const;
-
- VIRTUAL_COPY_CONS(Translator);
Translator (Translator const &);
- Translator ();
-
- Translator_group * daddy_trans_l_ ;
-
+ void removal_processing ();
+ SCM internal_get_property (SCM symbol) const;
- /**
- try to fit the request in this engraver
-
- @return
- false: not noted, not taken.
-
- true: request swallowed. Don't try to put the request elsewhere.
-
- */
- bool try_music (Music*);
- void pre_move_processing();
- void add_processing ();
- void creation_processing ();
- void process_music();
- void post_move_processing();
- void removal_processing();
- /**
- ask daddy for a feature
- */
- Music_output_def *output_def_l () const;
-
- SCM get_property (const char *) const;
- SCM get_property (SCM symbol) const;
-
+ virtual Music_output_def *get_output_def () const;
+ virtual Translator_group* get_daddy_translator ()const;
virtual Moment now_mom () const;
-
- /*
- ugh: bubbled up from Translator_group.
- */
- SCM simple_trans_list_;
- SCM trans_group_list_;
- SCM definition_;
+ virtual bool try_music (Music *req);
+ virtual void stop_translation_timestep ();
+ virtual void start_translation_timestep ();
+ virtual void initialize () ;
+ virtual void process_music ();
+ virtual void do_announces ();
+ virtual void finalize ();
- SCM properties_scm_;
- DECLARE_SMOBS(Translator, dummy);
-public:
- /*
- UGH. Clean this up.
- */
- enum {
- ORPHAN,
- VIRGIN,
- CREATION_INITED,
- MOVE_INITED,
- ACCEPTED_REQS,
- PROCESSED_REQS,
- ACKED_REQS,
- MOVE_DONE
- } status_; // junkme
-protected:
-
- /*
- @see{try_request}
- Default: always return false
- */
- virtual void do_add_processing ();
- virtual bool do_try_music (Music *req_l);
- virtual void do_pre_move_processing();
- virtual void do_post_move_processing();
- virtual void do_process_music () ;
- virtual void do_creation_processing() ;
- virtual void do_removal_processing();
+ Score_context * get_score_context () const;
+ Global_context * get_global_context () const;
+
+ TRANSLATOR_DECLARATIONS(Translator);
+ DECLARE_SMOBS (Translator, dummy);
+protected: // should be private.
+ Context * daddy_context_ ;
+ SCM simple_trans_list_;
+ friend class Context_def;
+ friend class Context;
};
-
/**
A macro to automate administration of translators.
*/
#define ADD_THIS_TRANSLATOR(T) \
+SCM T::static_description_ = SCM_EOL;\
static void _ ## T ## _adder () {\
T *t = new T;\
- t->type_str_ = classname (t);\
+ T::static_description_ = t->static_translator_description ();\
+ scm_permanent_object (T::static_description_);\
add_translator (t);\
}\
-ADD_GLOBAL_CTOR(_ ## T ## _adder);
-
-
-
-extern Dictionary<Translator*> *global_translator_dict_p;
-void add_translator (Translator*trans_p);
-
-Translator*get_translator_l (String s);
-Translator *unsmob_translator (SCM);
+SCM T::translator_description() const\
+{ \
+ return static_description_;\
+}\
+ADD_GLOBAL_CTOR (_ ## T ## _adder);
+
+
+
+
+#define ENTER_DESCRIPTION(classname,desc,grobs,accepted,acked,read,write) \
+ADD_THIS_TRANSLATOR (classname);\
+SCM \
+classname::static_translator_description () const \
+{ \
+ SCM static_properties= SCM_EOL; \
+ /* static_properties= acons (name ,gh_str02scm (Translator::name (self_scm ())), \
+ static_properties_); \
+ */ \
+ static_properties= scm_acons (ly_symbol2scm ("grobs-created"), \
+ parse_symbol_list (grobs), static_properties); \
+ \
+ static_properties= scm_acons (ly_symbol2scm ("description"), \
+ scm_makfrom0str (desc), static_properties); \
+ \
+ static_properties= scm_acons (ly_symbol2scm ("interfaces-acked"), \
+ parse_symbol_list (acked), static_properties); \
+ static_properties= scm_acons (ly_symbol2scm ("events-accepted"), \
+ parse_symbol_list (accepted), static_properties); \
+ \
+ static_properties= scm_acons (ly_symbol2scm ("properties-read"), \
+ parse_symbol_list (read), static_properties); \
+ \
+ static_properties= scm_acons (ly_symbol2scm ("properties-written"), \
+ parse_symbol_list (write), static_properties); \
+ \
+ return static_properties; \
+}
+
+
+
+void add_translator (Translator*trans);
+
+Translator*get_translator (SCM s);
+DECLARE_UNSMOB(Translator,translator);
#endif // TRANSLATOR_HH
projects / lilypond.git / blobdiff