/*
- engraver.hh -- declare Engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1996--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1996--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ENGRAVER_HH
#define ENGRAVER_HH
-#include "music.hh"
+#include "callback.hh"
+#include "grob.hh"
#include "grob-info.hh"
#include "translator.hh"
*/
class Engraver : public Translator
{
-
+ Grob *internal_make_grob (SCM sym, SCM cause,
+ char const *f, int l, char const *fun);
+ friend SCM ly_engraver_make_grob (SCM, SCM, SCM);
friend class Engraver_group;
protected:
/*
Default: ignore the info
*/
virtual void acknowledge_grob (Grob_info) {}
- virtual void announce_grob (Grob_info);
+ virtual void announce_grob (Grob_info, Context *reroute_context = 0);
+ virtual void announce_end_grob (Grob_info, Context *reroute_context = 0);
Engraver_group *get_daddy_engraver () const;
public:
+ using Translator::trampoline;
+ template <class T, void (T::*callback)(Grob_info)>
+ static SCM trampoline (SCM target, SCM grob, SCM source_engraver)
+ {
+ T *t = LY_ASSERT_SMOB (T, target, 1);
+ Grob *g = LY_ASSERT_SMOB (Grob, grob, 2);
+ Engraver *e = LY_ASSERT_SMOB (Engraver, source_engraver, 3);
+
+ (t->*callback) (Grob_info (e, g));
+ return SCM_UNSPECIFIED;
+ }
+
/**
Announce element. Default: pass on to daddy. Utility
*/
void announce_grob (Grob *, SCM cause);
+ void announce_end_grob (Grob *, SCM cause);
+
+ Grob_info make_grob_info (Grob *, SCM cause);
+
+ Item *internal_make_item (SCM sym, SCM cause,
+ char const *f, int l, char const *fun);
+ Spanner *internal_make_spanner (SCM sym, SCM cause,
+ char const *f, int l, char const *fun);
+ Paper_column *internal_make_column (SCM sym,
+ char const *f, int l, char const *fun);
- Score_engraver *get_score_engraver () const;
/**
override other ctor
*/
- TRANSLATOR_DECLARATIONS (Engraver);
+ DECLARE_CLASSNAME (Engraver);
+ DECLARE_TRANSLATOR_CALLBACKS (Engraver);
+ Engraver (Context *);
};
-#define make_item(x, cause) make_item_from_properties (this, ly_symbol2scm (x), cause, x)
-#define make_spanner(x, cause) make_spanner_from_properties (this, ly_symbol2scm (x), cause, x)
-#define make_paper_column(x) make_paper_column_from_properties (this, ly_symbol2scm (x), x)
-Grob *make_grob_from_properties (Engraver *tr, SCM symbol, SCM cause, char const *name);
-Item *make_item_from_properties (Engraver *tg, SCM x, SCM cause, char const *name);
-Spanner *make_spanner_from_properties (Engraver *tg, SCM x, SCM cause, char const *name);
-Paper_column *make_paper_column_from_properties (Engraver *tg, SCM x, char const *name);
+#define make_item(x, cause) internal_make_item (ly_symbol2scm (x), cause, __FILE__, __LINE__, __FUNCTION__)
+#define make_spanner(x, cause) internal_make_spanner (ly_symbol2scm (x), cause, __FILE__, __LINE__, __FUNCTION__)
+#define make_paper_column(x) internal_make_column (ly_symbol2scm (x), __FILE__, __LINE__, __FUNCTION__)
+
+bool ly_is_grob_cause (SCM obj);
#endif // ENGRAVER_HH