2 music-output-def.cc -- implement Output_def
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2006 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 ()
34 scope_ = ly_make_anonymous_module (false);
37 Output_def::Output_def (Output_def const &s)
44 input_origin_ = s.input_origin_;
45 scope_ = ly_make_anonymous_module (false);
46 if (ly_is_module (s.scope_))
47 ly_module_copy (scope_, s.scope_);
50 Output_def::~Output_def ()
54 IMPLEMENT_SMOBS (Output_def);
55 IMPLEMENT_DEFAULT_EQUAL_P (Output_def);
58 Output_def::get_parser () const
60 return parent_ ? parent_->get_parser () : parser_;
64 Output_def::mark_smob (SCM m)
66 Output_def *mo = (Output_def*) SCM_CELL_WORD_1 (m);
68 /* FIXME: why is this necessary?
69 all paper_ should be protected by themselves. */
71 scm_gc_mark (mo->parent_->self_scm ());
77 assign_context_def (Output_def * m, SCM transdef)
79 Context_def *tp = unsmob_context_def (transdef);
84 SCM sym = tp->get_context_name ();
85 m->set_variable (sym, transdef);
89 /* find the translator for NAME. NAME must be a symbol. */
91 find_context_def (Output_def const *m, SCM name)
93 Context_def *cd = unsmob_context_def (m->lookup_variable (name));
94 return cd ? cd->self_scm () : SCM_EOL;
98 Output_def::print_smob (SCM s, SCM p, scm_print_state *)
100 Output_def * def = unsmob_output_def (s);
102 scm_puts (def->class_name (), p);
110 Output_def::get_dimension (SCM s) const
112 SCM val = lookup_variable (s);
113 return scm_to_double (val);
117 Output_def::lookup_variable (SCM sym) const
119 SCM var = ly_module_lookup (scope_, sym);
120 if (SCM_VARIABLEP (var) && SCM_VARIABLE_REF(var) != SCM_UNDEFINED)
121 return SCM_VARIABLE_REF (var);
124 return parent_->lookup_variable (sym);
126 return SCM_UNDEFINED;
130 Output_def::c_variable (string s) const
132 return lookup_variable (ly_symbol2scm (s.c_str ()));
136 Output_def::set_variable (SCM sym, SCM val)
138 scm_module_define (scope_, sym, val);
142 /* FIXME. This is broken until we have a generic way of
143 putting lists inside the \layout block. */
145 line_dimensions_int (Output_def *def, int n)
147 Real lw = def->get_dimension (ly_symbol2scm ("line-width"));
148 Real ind = n ? 0.0 : def->get_dimension (ly_symbol2scm ("indent"));
149 return Interval (ind, lw);