2 music-output-def.cc -- implement Output_def
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #include "output-def.hh"
11 #include "context-def.hh"
12 #include "file-path.hh"
13 #include "global-context.hh"
14 #include "interval.hh"
16 #include "output-def.hh"
17 #include "scm-hash.hh"
20 #include "ly-smobs.icc"
22 #include "program-option.hh"
24 #include "string-convert.hh"
26 Output_def::Output_def ()
33 scope_ = ly_make_anonymous_module (false);
36 Output_def::Output_def (Output_def const &s)
42 input_origin_ = s.input_origin_;
43 scope_ = ly_make_anonymous_module (false);
44 if (ly_is_module (s.scope_))
45 ly_module_copy (scope_, s.scope_);
48 Output_def::~Output_def ()
52 IMPLEMENT_SMOBS (Output_def);
53 IMPLEMENT_DEFAULT_EQUAL_P (Output_def);
56 Output_def::mark_smob (SCM m)
58 Output_def *mo = (Output_def*) SCM_CELL_WORD_1 (m);
60 /* FIXME: why is this necessary?
61 all paper_ should be protected by themselves. */
63 scm_gc_mark (mo->parent_->self_scm ());
69 assign_context_def (Output_def * m, SCM transdef)
71 Context_def *tp = unsmob_context_def (transdef);
76 SCM sym = tp->get_context_name ();
77 m->set_variable (sym, transdef);
81 /* find the translator for NAME. NAME must be a symbol. */
83 find_context_def (Output_def const *m, SCM name)
85 Context_def *cd = unsmob_context_def (m->lookup_variable (name));
86 return cd ? cd->self_scm () : SCM_EOL;
90 Output_def::print_smob (SCM s, SCM p, scm_print_state *)
92 Output_def * def = unsmob_output_def (s);
94 scm_puts (def->class_name (), p);
102 Output_def::get_dimension (SCM s) const
104 SCM val = lookup_variable (s);
105 return scm_to_double (val);
109 Output_def::lookup_variable (SCM sym) const
111 SCM var = ly_module_lookup (scope_, sym);
112 if (SCM_VARIABLEP (var) && SCM_VARIABLE_REF (var) != SCM_UNDEFINED)
113 return SCM_VARIABLE_REF (var);
116 return parent_->lookup_variable (sym);
118 return SCM_UNDEFINED;
122 Output_def::c_variable (string s) const
124 return lookup_variable (ly_symbol2scm (s.c_str ()));
128 Output_def::set_variable (SCM sym, SCM val)
130 scm_module_define (scope_, sym, val);
134 /* FIXME. This is broken until we have a generic way of
135 putting lists inside the \layout block. */
137 line_dimensions_int (Output_def *def, int n)
139 Real lw = def->get_dimension (ly_symbol2scm ("line-width"));
140 Real ind = n ? 0.0 : def->get_dimension (ly_symbol2scm ("indent"));
141 return Interval (ind, lw);