2 music-output-def.cc -- implement Music_output_def
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "context-def.hh"
11 #include "file-path.hh"
12 #include "global-context.hh"
13 #include "lily-guile.hh"
14 #include "ly-module.hh"
16 #include "music-output-def.hh"
17 #include "paper-def.hh"
20 #include "ly-smobs.icc"
22 Music_output_def::Music_output_def ()
24 translator_tab_ = new Scheme_hash_table;
28 scm_gc_unprotect_object (translator_tab_->self_scm ());
29 scope_ = ly_make_anonymous_module (false);
32 Music_output_def::~Music_output_def ()
36 Music_output_def::Music_output_def (Music_output_def const &s)
42 translator_tab_ = new Scheme_hash_table (*s.translator_tab_);
43 scm_gc_unprotect_object (translator_tab_->self_scm ());
45 scope_= ly_make_anonymous_module (false);
46 if (is_module (s.scope_))
47 ly_import_module (scope_, s.scope_);
51 IMPLEMENT_SMOBS (Music_output_def);
52 IMPLEMENT_DEFAULT_EQUAL_P (Music_output_def);
55 Music_output_def::mark_smob (SCM m)
57 Music_output_def * mo = (Music_output_def*) SCM_CELL_WORD_1 (m);
58 if (mo->translator_tab_)
59 scm_gc_mark (mo->translator_tab_->self_scm ());
67 Music_output_def::derived_mark ()
73 Music_output_def::assign_context_def (SCM transdef)
75 Context_def *tp = unsmob_context_def (transdef);
78 translator_tab_->set (tp->get_context_name (), transdef);
80 String nm = ly_symbol2string (tp->get_context_name ()) + "Context";
83 scm_module_define (scope_, ly_symbol2scm (nm.to_str0 ()), transdef);
87 find the translator for NAME. NAME must be a symbol.
90 Music_output_def::find_context_def (SCM name) const
93 translator_tab_->try_retrieve (name, &val);
98 Music_output_def::print_smob (SCM s, SCM p, scm_print_state *)
100 Music_output_def * def = unsmob_music_output_def (s);
102 scm_puts (classname (def), p);
110 Music_output_def::lookup_variable (SCM sym) const
112 SCM var = ly_module_lookup (scope_, sym);
114 return scm_variable_ref (var);
118 Music_output_def::c_variable (String s) const
120 return lookup_variable (ly_symbol2scm (s.to_str0 ()));
124 Music_output_def::set_variable (SCM sym, SCM val)
126 scm_module_define (scope_, sym, val);
129 LY_DEFINE (ly_paper_lookup, "ly:paper-lookup",
130 2, 0,0, (SCM pap, SCM sym),
131 "Lookup @var{sym} in @var{pap}. "
132 "Return the value or @code{'()} if undefined.")
134 Music_output_def *op = unsmob_music_output_def (pap);
135 SCM_ASSERT_TYPE (op, pap, SCM_ARG1, __FUNCTION__, "Paper");
136 SCM_ASSERT_TYPE (ly_c_symbol_p (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
138 SCM var = ly_module_lookup (op->scope_, sym);
139 if (SCM_VARIABLEP (var))
140 return SCM_VARIABLE_REF (var);
145 LY_DEFINE (ly_output_def_scope, "ly:output-def-scope",
147 "Get the variable scope inside @var{def}.")
149 Music_output_def *op = unsmob_music_output_def (def);
150 SCM_ASSERT_TYPE (op, def, SCM_ARG1, __FUNCTION__, "Output definition");
154 LY_DEFINE (ly_output_def_clone, "ly:output-def-clone",
158 Music_output_def *op = unsmob_music_output_def (def);
159 SCM_ASSERT_TYPE (op, def, SCM_ARG1, __FUNCTION__, "Output definition");
160 SCM s = op->clone ()->self_scm ();
161 scm_gc_unprotect_object (s);
165 LY_DEFINE(ly_output_description, "ly:output-description",
168 "Return the description of translators in @var{output-def}.")
170 Music_output_def *id = unsmob_music_output_def (output_def);
171 SCM al = id->translator_tab_->to_alist ();
173 for (SCM s = al ; ly_c_pair_p (s); s = ly_cdr (s))
175 Context_def * td = unsmob_context_def (ly_cdar (s));
176 l = scm_cons (scm_cons (ly_caar (s), td->to_alist ()), l);