2 paper-def.cc -- implement Paper_def
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
11 #include "all-font-metrics.hh"
14 #include "paper-def.hh"
16 #include "scaled-font-metric.hh"
19 #include "file-results.hh" // urg? header_global_p
20 #include "paper-outputter.hh"
22 Paper_def::Paper_def ()
26 Paper_def::~Paper_def ()
30 Paper_def::Paper_def (Paper_def const&src)
31 : Music_output_def (src)
37 Paper_def::get_var (String s) const
39 return get_realvar (ly_symbol2scm (s.ch_C()));
43 Paper_def::get_scmvar (String s) const
45 return scope_p_->scm_elem (ly_symbol2scm (s.ch_C()));
49 Paper_def::get_realvar (SCM s) const
52 if (!scope_p_->try_retrieve (s, &val))
54 programming_error ("unknown paper variable: " + ly_symbol2string (s));
60 if (scope_p_->try_retrieve (ly_symbol2scm ("outputscale"), &ssc))
62 sc = gh_scm2double (ssc);
64 if (gh_number_p (val))
66 return gh_scm2double (val) / sc;
70 programming_error ("not a real variable");
76 FIXME. This is broken until we have a generic way of
77 putting lists inside the \paper block.
80 Paper_def::line_dimensions_int (int n) const
82 Real lw = get_var ("linewidth");
83 Real ind = n? 0.0:get_var ("indent");
85 return Interval (ind, lw);
90 int Paper_def::default_count_i_ = 0;
93 Paper_def::get_next_default_count () const
95 return default_count_i_ ++;
99 Paper_def::reset_default_count()
101 default_count_i_ = 0;
106 Paper_def::paper_outputter_p ()
108 String basename = base_output_str ();
109 String outname = basename;
111 outname += String (".") + output_global_ch;
112 progress_indication (_f ("paper output to %s...",
113 outname == "-" ? String ("<stdout>") : outname));
115 target_str_global_array.push (outname);
116 Paper_outputter * po = new Paper_outputter (outname);
117 po->basename_ = basename;
123 todo: use symbols and hashtable idx?
126 Paper_def::find_font (SCM fn, Real m)
128 SCM key = gh_cons (fn, gh_double2scm (m));
129 SCM met = scm_assoc (key, scaled_fonts_);
132 return unsmob_metrics (gh_cdr (met));
135 if (scope_p_->try_retrieve (ly_symbol2scm ("outputscale"), &ssc))
137 m /= gh_scm2double (ssc);
140 Font_metric* f = all_fonts_global_p->find_font (ly_scm2string (fn));
141 SCM val = Scaled_font_metric::make_scaled_font_metric (f, m);
142 scaled_fonts_ = scm_acons (key, val, scaled_fonts_ );
144 scm_unprotect_object (val);
146 return dynamic_cast<Scaled_font_metric*> (unsmob_metrics (val));
151 Return alist to translate internally used fonts back to real-world
154 Paper_def::font_descriptions ()const
159 for (SCM s = scaled_fonts_; gh_pair_p (s); s = gh_cdr(s))
161 SCM desc = gh_caar (s);
162 SCM mdesc = unsmob_metrics (gh_cdar (s))->description_;
164 l = gh_cons (gh_cons (mdesc, desc), l);