2 engraver.hh -- declare Engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1996--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
13 #include "lily-proto.hh"
16 #include "grob-info.hh"
17 #include "translator.hh"
21 a struct which processes events, and creates the #Grob#s.
22 It may use derived classes.
24 class Engraver : public virtual Translator {
26 friend class Engraver_group_engraver;
29 take note of item/spanner
30 put item in spanner. Adjust local key; etc.
32 Default: ignore the info
34 virtual void acknowledge_grob (Grob_info) {}
36 /** Do things with stuff found in acknowledge_grob. Ugh. Should
37 be looped with acknowledge_grob.
40 virtual void process_acknowledged_grobs () {}
42 virtual void announce_grob (Grob_info);
43 Engraver_group_engraver*get_daddy_engraver () const;
47 Announce element. Default: pass on to daddy. Utility
49 void announce_grob (Grob*, SCM cause);
51 Score_engraver * get_score_engraver () const;
55 TRANSLATOR_DECLARATIONS(Engraver);
58 #define make_item(x,cause) make_item_from_properties (this, ly_symbol2scm (x), cause, x)
59 #define make_spanner(x,cause) make_spanner_from_properties (this, ly_symbol2scm (x), cause, x)
60 Item* make_item_from_properties (Engraver * tg, SCM x, SCM cause, const char *name);
61 Spanner* make_spanner_from_properties (Engraver * tg, SCM x, SCM cause, const char*name);