source file of the GNU LilyPond music typesetter
- (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+
#include <math.h>
+#include "virtual-font-metric.hh"
#include "all-font-metrics.hh"
#include "string.hh"
#include "misc.hh"
#include "paper-def.hh"
-#include "debug.hh"
+#include "warn.hh"
#include "scaled-font-metric.hh"
#include "main.hh"
-#include "scope.hh"
-#include "file-results.hh" // urg? header_global_p
+#include "scm-hash.hh"
+#include "input-file-results.hh" // urg? header_global
#include "paper-outputter.hh"
+#include "ly-module.hh"
+
+/*
+ This is an almost empty thing. The only substantial thing this class
+ handles is scaling up and down to real-world dimensions (internally
+ dimensions are against global staff-space.)
+ */
Paper_def::Paper_def ()
{
{
}
-
-Real
-Paper_def::get_var (String s) const
-{
- return get_realvar (ly_symbol2scm (s.ch_C ()));
-}
-
-SCM
-Paper_def::get_scmvar (String s) const
-{
- return scope_p_->scm_elem (ly_symbol2scm (s.ch_C ()));
-}
-
Real
Paper_def::get_realvar (SCM s) const
{
- SCM val ;
- if (!scope_p_->try_retrieve (s, &val))
- {
- programming_error ("unknown paper variable: " + ly_symbol2string (s));
- return 0.0;
- }
-
- Real sc = 1.0;
- SCM ssc;
- if (scope_p_->try_retrieve (ly_symbol2scm ("outputscale"), &ssc))
- {
- sc = gh_scm2double (ssc);
- }
- if (gh_number_p (val))
- {
- return gh_scm2double (val) / sc;
- }
- else
- {
- programming_error ("not a real variable");
- return 0.0;
- }
+ SCM val = lookup_variable (s);
+ SCM scale = lookup_variable (ly_symbol2scm ("outputscale"));
+
+ Real sc = gh_scm2double (scale);
+ return gh_scm2double (val) / sc;
}
/*
Interval
Paper_def::line_dimensions_int (int n) const
{
- Real lw = get_var ("linewidth");
- Real ind = n? 0.0:get_var ("indent");
+ Real lw = get_realvar (ly_symbol2scm ("linewidth"));
+ Real ind = n? 0.0:get_realvar (ly_symbol2scm ("indent"));
return Interval (ind, lw);
}
-int Paper_def::score_count_i_ = 0;
-
-int
-Paper_def::get_next_score_count () const
-{
- return score_count_i_ ++;
-}
-
-void
-Paper_def::reset_score_count ()
-{
- score_count_i_ = 0;
-}
-
Paper_outputter*
-Paper_def::paper_outputter_p ()
+Paper_def::get_paper_outputter (String outname) const
{
- String outname = outname_str ();
progress_indication (_f ("paper output to `%s'...",
outname == "-" ? String ("<stdout>") : outname));
+ progress_indication("\n");
- target_str_global_array.push (outname);
+ global_input_file->target_strings_.push (outname);
Paper_outputter * po = new Paper_outputter (outname);
Path p = split_path (outname);
p.ext = "";
- po->basename_ = p.str ();
+ po->basename_ = p.to_string ();
return po;
}
/*
- todo: use symbols and hashtable idx?
+ Todo: use symbols and hashtable idx?
*/
Font_metric *
Paper_def::find_font (SCM fn, Real m)
if (gh_pair_p (met))
return unsmob_metrics (ly_cdr (met));
- SCM ssc;
- if (scope_p_->try_retrieve (ly_symbol2scm ("outputscale"), &ssc))
+ /*
+ Hmm. We're chaining font - metrics. Should consider wether to merge
+ virtual-font and scaled_font.
+ */
+ Font_metric* f=0;
+ if (gh_list_p (fn))
{
- m /= gh_scm2double (ssc);
+ f = new Virtual_font_metric (fn, m, this); // TODO: GC protection.
+
+ scaled_fonts_ = scm_acons (key, f->self_scm (), scaled_fonts_);
+ scm_gc_unprotect_object (f->self_scm ());
}
-
- Font_metric* f = all_fonts_global_p->find_font (ly_scm2string (fn));
- SCM val = Scaled_font_metric::make_scaled_font_metric (f, m);
- scaled_fonts_ = scm_acons (key, val, scaled_fonts_);
+ else
+ {
+ SCM scale_var = ly_module_lookup (scope_, ly_symbol2scm ("outputscale"));
+
+ m /= gh_scm2double (scm_variable_ref (scale_var));
- scm_gc_unprotect_object (val);
+ f = all_fonts_global->find_font (ly_scm2string (fn));
+ SCM val = Scaled_font_metric::make_scaled_font_metric (f, m);
+ scaled_fonts_ = scm_acons (key, val, scaled_fonts_);
+ scm_gc_unprotect_object (val);
+
+ f = unsmob_metrics (val);
+ }
- return dynamic_cast<Scaled_font_metric*> (unsmob_metrics (val));
+ return f;
}
SCM
Paper_def::font_descriptions ()const
{
-
-
SCM l = SCM_EOL;
for (SCM s = scaled_fonts_; gh_pair_p (s); s = ly_cdr (s))
{
- SCM desc = gh_caar (s);
- SCM mdesc = unsmob_metrics (gh_cdar (s))->description_;
+ SCM desc = ly_caar (s);
+ if (!gh_string_p (gh_car (desc)))
+ continue ;
+
+ SCM mdesc = unsmob_metrics (ly_cdar (s))->description_;
l = gh_cons (gh_cons (mdesc, desc), l);
}
return l;
}
+
+Paper_def*
+unsmob_paper (SCM x)
+{
+ return dynamic_cast<Paper_def*> (unsmob_music_output_def (x));
+}
+
+
+LY_DEFINE (ly_paper_def_p, "ly:paper-def?",
+ 1, 0,0, (SCM def),
+ "Is @var{def} a paper definition?")
+{
+ Paper_def *op = dynamic_cast<Paper_def*> (unsmob_music_output_def (def));
+
+ bool pap = op;
+ return gh_bool2scm (pap);
+}