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 ()
27 scope_ = ly_make_anonymous_module (false);
30 Music_output_def::~Music_output_def ()
34 Music_output_def::Music_output_def (Music_output_def const &s)
39 scope_= ly_make_anonymous_module (false);
40 if (is_module (s.scope_))
41 ly_import_module (scope_, s.scope_);
45 IMPLEMENT_SMOBS (Music_output_def);
46 IMPLEMENT_DEFAULT_EQUAL_P (Music_output_def);
48 #include "paper-def.hh"
49 #include "book-paper-def.hh"
52 Music_output_def::mark_smob (SCM m)
54 Music_output_def * mo = (Music_output_def*) SCM_CELL_WORD_1 (m);
57 FIXME: why is this necessary?
58 all bookpaper_ should be protected by themselves.
60 Paper_def *pd = dynamic_cast<Paper_def*>(mo);
61 if (pd && pd->bookpaper_)
62 scm_gc_mark (pd->bookpaper_->self_scm ());
68 Music_output_def::assign_context_def (SCM transdef)
70 Context_def *tp = unsmob_context_def (transdef);
75 SCM sym = tp->get_context_name ();
76 scm_module_define (scope_, sym, transdef);
81 find the translator for NAME. NAME must be a symbol.
84 Music_output_def::find_context_def (SCM name) const
86 SCM var = ly_module_lookup (scope_, name);
88 if (var != SCM_BOOL_F)
90 var = scm_variable_ref (var);
91 Context_def *cd = (unsmob_context_def (var));
92 return cd ? cd->self_scm () : SCM_EOL;
99 Music_output_def::print_smob (SCM s, SCM p, scm_print_state *)
101 Music_output_def * def = unsmob_music_output_def (s);
103 scm_puts (classname (def), p);
111 Music_output_def::lookup_variable (SCM sym) const
113 SCM var = ly_module_lookup (scope_, sym);
115 return scm_variable_ref (var);
119 Music_output_def::c_variable (String s) const
121 return lookup_variable (ly_symbol2scm (s.to_str0 ()));
125 Music_output_def::set_variable (SCM sym, SCM val)
127 scm_module_define (scope_, sym, val);
130 LY_DEFINE (ly_paper_lookup, "ly:paper-lookup",
131 2, 0,0, (SCM pap, SCM sym),
132 "Lookup @var{sym} in @var{pap}. "
133 "Return the value or @code{'()} if undefined.")
135 Music_output_def *op = unsmob_music_output_def (pap);
136 SCM_ASSERT_TYPE (op, pap, SCM_ARG1, __FUNCTION__, "Paper");
137 SCM_ASSERT_TYPE (ly_c_symbol_p (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
139 SCM var = ly_module_lookup (op->scope_, sym);
140 if (SCM_VARIABLEP (var))
141 return SCM_VARIABLE_REF (var);
146 LY_DEFINE (ly_output_def_scope, "ly:output-def-scope",
148 "Get the variable scope inside @var{def}.")
150 Music_output_def *op = unsmob_music_output_def (def);
151 SCM_ASSERT_TYPE (op, def, SCM_ARG1, __FUNCTION__, "Output definition");
155 LY_DEFINE (ly_output_def_clone, "ly:output-def-clone",
159 Music_output_def *op = unsmob_music_output_def (def);
160 SCM_ASSERT_TYPE (op, def, SCM_ARG1, __FUNCTION__, "Output definition");
161 SCM s = op->clone ()->self_scm ();
162 scm_gc_unprotect_object (s);
166 LY_DEFINE(ly_output_description, "ly:output-description",
169 "Return the description of translators in @var{output-def}.")
171 Music_output_def *id = unsmob_music_output_def (output_def);
173 SCM al =ly_module_to_alist (id->scope_);
176 for (SCM s = al ; ly_c_pair_p (s); s = ly_cdr (s))
178 Context_def * td = unsmob_context_def (ly_cdar (s));
179 SCM key = ly_caar (s);
180 if (td && key == td->get_context_name ())
183 l = scm_cons (scm_cons (key, td->to_alist ()), l);