source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.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 "assoc.hh"
#include "misc.hh"
#include "paper-def.hh"
-#include "debug.hh"
-#include "lookup.hh"
-#include "dimen.hh"
-#include "input-engraver.hh"
-#include "engraver-group.hh"
-#include "assoc-iter.hh"
-
-void
-Paper_def::set_var(String s, Real r)
-{
- real_vars_p_->elem(s) = r;
-}
+#include "warn.hh"
+#include "scaled-font-metric.hh"
+#include "main.hh"
+#include "scm-hash.hh"
+#include "input-file-results.hh" // urg? header_global
+#include "paper-outputter.hh"
+#include "ly-modules.hh"
-Real
-Paper_def::get_var(String s)const
+/*
+ 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 ()
{
- if(! real_vars_p_->elt_b(s))
- error ( "unknown paper variable `" + s+"'");
- return real_vars_p_->elem(s);
}
-Real
-Paper_def::linewidth_f() const
+Paper_def::~Paper_def ()
{
- return get_var("linewidth");
}
-Real
-Paper_def::duration_to_dist(Moment d)
+Paper_def::Paper_def (Paper_def const&src)
+ : Music_output_def (src)
{
- if (!d)
- return 0;
-
- return get_var("unitspace") * pow(get_var("geometric"), log_2(d));
}
-Paper_def::Paper_def()
-{
- igrav_p_ = 0;
- lookup_p_ = 0;
- real_vars_p_ = new Assoc<String,Real>;
- outfile_str_ = "lelie.tex";
-}
-Paper_def::~Paper_def()
+Real
+Paper_def::get_realvar (SCM s) const
{
- delete igrav_p_;
- delete real_vars_p_;
- delete lookup_p_;
+ SCM val = lookup_variable (s);
+ SCM scale = lookup_variable (ly_symbol2scm ("outputscale"));
+
+ Real sc = gh_scm2double (scale);
+ return gh_scm2double (val) / sc;
}
-Paper_def::Paper_def(Paper_def const&s)
+/*
+ FIXME. This is broken until we have a generic way of
+ putting lists inside the \paper block.
+ */
+Interval
+Paper_def::line_dimensions_int (int n) const
{
- igrav_p_ = s.igrav_p_ ? new Input_engraver( *s.igrav_p_):0;
- lookup_p_ = s.lookup_p_? new Lookup(*s.lookup_p_) : 0;
- lookup_p_->paper_l_ = this;
- real_vars_p_ = new Assoc<String,Real> (*s.real_vars_p_);
- outfile_str_ = s.outfile_str_;
-}
+ Real lw = get_realvar (ly_symbol2scm ("linewidth"));
+ Real ind = n? 0.0:get_realvar (ly_symbol2scm ("indent"));
-void
-Paper_def::set(Input_engraver * igrav_p)
-{
- delete igrav_p_;
- igrav_p_ = igrav_p;
+ return Interval (ind, lw);
}
-void
-Paper_def::set(Lookup*l)
-{
- assert(l != lookup_p_);
- delete lookup_p_;
- lookup_p_ = l;
- lookup_p_->paper_l_ = this;
-}
-Real
-Paper_def::interline_f() const
-{
- return get_var("interline");
-}
-Real
-Paper_def::rule_thickness()const
+Paper_outputter*
+Paper_def::get_paper_outputter (String outname) const
{
- return get_var("rule_thickness");
-}
+ progress_indication (_f ("paper output to `%s'...",
+ outname == "-" ? String ("<stdout>") : outname));
-Real
-Paper_def::interbeam_f() const
-{
- return get_var("interbeam");
-}
-Real
-Paper_def::internote_f() const
-{
- return interline_f() / 2;
+ global_input_file->target_strings_.push (outname);
+ Paper_outputter * po = new Paper_outputter (outname);
+ Path p = split_path (outname);
+ p.ext = "";
+ po->basename_ = p.to_string ();
+ return po;
}
-Real
-Paper_def::note_width()const
-{
- return get_var("notewidth");
-}
-void
-Paper_def::print() const
-{
-#ifndef NPRINT
- mtor << "Paper {";
- mtor << "out: " <<outfile_str_;
- lookup_p_->print();
- for (Assoc_iter<String,Real> i(*real_vars_p_); i.ok(); i++) {
- mtor << i.key() << "= " << i.val() << "\n";
+/*
+ Todo: use symbols and hashtable idx?
+*/
+Font_metric *
+Paper_def::find_font (SCM fn, Real m)
+{
+ SCM key = gh_cons (fn, gh_double2scm (m));
+ SCM met = scm_assoc (key, scaled_fonts_);
+
+ if (gh_pair_p (met))
+ return unsmob_metrics (ly_cdr (met));
+
+ /*
+ 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))
+ {
+ 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 ());
}
- mtor << "}\n";
-#endif
+ else
+ {
+ SCM scale_var = ly_module_lookup (scope_, ly_symbol2scm ("outputscale"));
+
+ m /= gh_scm2double (scm_variable_ref (scale_var));
+
+ 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_);
+ f = unsmob_metrics (val);
+ scm_gc_unprotect_object (val);
+ }
+
+ return f;
}
-Lookup const *
-Paper_def::lookup_l()
+
+/*
+ Return alist to translate internally used fonts back to real-world
+ coordinates. */
+SCM
+Paper_def::font_descriptions ()const
{
- assert( lookup_p_ );
- return lookup_p_;
+ SCM l = SCM_EOL;
+ for (SCM s = scaled_fonts_; gh_pair_p (s); s = ly_cdr (s))
+ {
+ 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;
}
-Global_translator*
-Paper_def::get_global_translator_p() const
+Paper_def*
+unsmob_paper (SCM x)
{
- return igrav_p_->get_group_engraver_p()->global_l();
+ return dynamic_cast<Paper_def*> (unsmob_music_output_def (x));
}
+
+
projects / lilypond.git / blobdiff