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>
12 #include "music-output-def.hh"
13 #include "global-context.hh"
14 #include "context-def.hh"
16 #include "file-path.hh"
17 #include "lily-guile.hh"
18 #include "ly-module.hh"
20 #include "ly-smobs.icc"
22 Music_output_def::Music_output_def ()
24 scaled_fonts_ = SCM_EOL;
25 translator_tab_ = new Scheme_hash_table;
29 scm_gc_unprotect_object (translator_tab_->self_scm ());
30 scope_ = ly_make_anonymous_module ();
33 Music_output_def::~Music_output_def ()
37 Music_output_def::Music_output_def (Music_output_def const &s)
41 scaled_fonts_ = SCM_EOL;
44 translator_tab_ = new Scheme_hash_table (*s.translator_tab_);
45 scm_gc_unprotect_object (translator_tab_->self_scm ());
47 scaled_fonts_ = scm_list_copy (s.scaled_fonts_);
49 scope_= ly_make_anonymous_module ();
50 if (ly_module_p (s.scope_))
51 ly_copy_module_variables (scope_, s.scope_);
55 IMPLEMENT_SMOBS (Music_output_def);
56 IMPLEMENT_DEFAULT_EQUAL_P (Music_output_def);
59 Music_output_def::mark_smob (SCM m)
61 Music_output_def * mo = (Music_output_def*) SCM_CELL_WORD_1 (m);
62 if (mo->translator_tab_)
63 scm_gc_mark (mo->translator_tab_->self_scm ());
64 scm_gc_mark (mo->scope_);
66 return mo->scaled_fonts_;
70 Music_output_def::assign_context_def (SCM transdef)
72 Context_def *tp = unsmob_context_def (transdef);
75 translator_tab_->set (tp->get_context_name (), transdef);
77 String nm = ly_symbol2string (tp->get_context_name ()) + "Context";
80 scm_module_define (scope_, ly_symbol2scm (nm.to_str0 ()), transdef);
84 find the translator for NAME. NAME must be a symbol.
87 Music_output_def::find_context_def (SCM name) const
90 translator_tab_->try_retrieve (name, &val);
95 Music_output_def::print_smob (SCM s, SCM p, scm_print_state *)
97 Music_output_def * def = unsmob_music_output_def (s);
99 scm_puts (classname (def), p);
107 Music_output_def::get_scmvar (String s) const
109 return lookup_variable (ly_symbol2scm (s.to_str0 ()));
113 Music_output_def::set_variable (SCM sym, SCM val)
115 scm_module_define (scope_, sym, val);
119 Music_output_def::lookup_variable (SCM sym) const
121 SCM var = ly_module_lookup (scope_, sym);
123 return scm_variable_ref (var);
126 LY_DEFINE (ly_paper_lookup, "ly:paper-lookup",
127 2, 0,0, (SCM pap, SCM sym),
128 "Lookup @var{sym} in @var{pap}. "
129 "Return the value or @code{'()} if undefined.")
131 Music_output_def *op = unsmob_music_output_def (pap);
132 SCM_ASSERT_TYPE (op, pap, SCM_ARG1, __FUNCTION__, "Paper");
133 SCM_ASSERT_TYPE (gh_symbol_p (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
135 SCM var = ly_module_lookup (op->scope_, sym);
136 if (SCM_VARIABLEP (var))
137 return SCM_VARIABLE_REF (var);
142 LY_DEFINE (ly_output_def_scope, "ly:output-def-scope",
144 "Get the variable scope inside @var{def}.")
146 Music_output_def *op = unsmob_music_output_def (def);
147 SCM_ASSERT_TYPE (op, def, SCM_ARG1, __FUNCTION__, "Output definition");
151 LY_DEFINE (ly_output_def_clone, "ly:output-def-clone",
155 Music_output_def *op = unsmob_music_output_def (def);
156 SCM_ASSERT_TYPE (op, def, SCM_ARG1, __FUNCTION__, "Output definition");
157 SCM s = op->clone ()->self_scm ();
158 scm_gc_unprotect_object (s);