2 output-def-scheme.cc -- implement Output_def bindings
4 source file of the GNU LilyPond music typesetter
6 (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
10 #include "output-def.hh"
11 #include "ly-module.hh"
12 #include "context-def.hh"
14 LY_DEFINE (ly_layout_lookup, "ly:output-def-lookup",
15 2, 0, 0, (SCM pap, SCM sym),
16 "Lookup @var{sym} in @var{pap}. "
17 "Return the value or @code{'()} if undefined.")
19 Output_def *op = unsmob_output_def (pap);
20 SCM_ASSERT_TYPE (op, pap, SCM_ARG1, __FUNCTION__, "Output_def");
21 SCM_ASSERT_TYPE (scm_is_symbol (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
23 return op->lookup_variable (sym);
26 LY_DEFINE (ly_output_def_scope, "ly:output-def-scope",
28 "Get the variable scope inside @var{def}.")
30 Output_def *op = unsmob_output_def (def);
31 SCM_ASSERT_TYPE (op, def, SCM_ARG1, __FUNCTION__, "Output definition");
35 LY_DEFINE (ly_output_def_parent, "ly:output-def-parent",
37 "Get the parent output-def of @var{def}.")
39 Output_def *op = unsmob_output_def (def);
40 SCM_ASSERT_TYPE (op, def, SCM_ARG1, __FUNCTION__, "Output definition");
41 return op->parent_ ? op->parent_->self_scm () : SCM_EOL;
44 LY_DEFINE (ly_output_def_clone, "ly:output-def-clone",
48 Output_def *op = unsmob_output_def (def);
49 SCM_ASSERT_TYPE (op, def, SCM_ARG1, __FUNCTION__, "Output definition");
50 SCM s = op->clone ()->self_scm ();
51 scm_gc_unprotect_object (s);
55 LY_DEFINE (ly_output_description, "ly:output-description",
56 1, 0, 0, (SCM output_def),
57 "Return the description of translators in @var{output-def}.")
59 Output_def *id = unsmob_output_def (output_def);
61 SCM al = ly_module2alist (id->scope_);
64 for (SCM s = al; scm_is_pair (s); s = scm_cdr (s))
66 Context_def * td = unsmob_context_def (scm_cdar (s));
67 SCM key = scm_caar (s);
68 if (td && key == td->get_context_name ())
69 ell = scm_cons (scm_cons (key, td->to_alist ()), ell);
74 LY_DEFINE (ly_layout_def_p, "ly:layout-def?",
76 "Is @var{def} a layout definition?")
78 return ly_bool2scm (unsmob_output_def (def));
81 LY_DEFINE (ly_paper_outputscale, "ly:paper-outputscale",
83 "Get outputscale for BP.")
85 Output_def *b = unsmob_output_def (bp);
86 SCM_ASSERT_TYPE (b, bp, SCM_ARG1, __FUNCTION__, "paper");
87 return scm_make_real (output_scale (b));
90 LY_DEFINE (ly_make_output_def, "ly:make-output-def",
94 Output_def *bp = new Output_def ;
95 return scm_gc_unprotect_object (bp->self_scm ());