patch::: 1.3.78.jcn1

[lilypond.git] / lily / paper-def.cc

diff --git a/lily/paper-def.cc b/lily/paper-def.cc
index b2602dd355a0e6c8add89ed4a4de5b34b9be14ae..698daf4585f39c01089ca15f10203fe7492463ba 100644 (file)
--- a/lily/paper-def.cc
+++ b/lily/paper-def.cc
@@ -1,104 +1,172 @@
 /*
   paper-def.cc -- implement Paper_def
 
-  source file of the LilyPond music typesetter
+  source file of the GNU LilyPond music typesetter
 
-  (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
 #include <math.h>
+
+#include "string.hh"
 #include "misc.hh"
 #include "paper-def.hh"
 #include "debug.hh"
 #include "lookup.hh"
-#include "dimen.hh"
+#include "main.hh"
+#include "scope.hh"
+#include "file-results.hh" // urg? header_global_p
+#include "paper-stream.hh"
 
+Paper_def::Paper_def ()
+{
+  lookup_alist_ = SCM_EOL;
+}
 
 
-// golden ratio
-const Real PHI = (1+sqrt(5))/2;
+Paper_def::~Paper_def ()
+{
+}
 
-// see  Roelofs, p. 57
-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 whole_width * pow(geometric_, log_2(d));
+  SCM n  = SCM_EOL;
+  for (SCM s = src.lookup_alist_; gh_pair_p(s); s = gh_cdr (s))
+    {
+      n = scm_acons (gh_caar(s), gh_cdar (s), n);
+    }
+
+  lookup_alist_  = n;
 }
 
+
 Real
-Paper_def::rule_thickness()const
+Paper_def::get_var (String s) const
 {
-    return 0.4 PT;
+  return get_realvar (ly_symbol2scm (s.ch_C()));
 }
 
-Paper_def::Paper_def(Lookup *l)
+SCM
+Paper_def::get_scmvar (String s) const
 {
-    lookup_p_ = l;
-    linewidth = 15 *CM_TO_PT;          // in cm for now
-    whole_width = 8 * note_width();
-    geometric_ = sqrt(2);
-    outfile = "lelie.out";
+  return  scope_p_->scm_elem (ly_symbol2scm (s.ch_C()));
 }
 
-Paper_def::~Paper_def()
+Real
+Paper_def::get_realvar (SCM s) const
 {
-    delete lookup_p_;
+  if (!scope_p_->elem_b (s))
+    {
+      programming_error ("unknown paper variable: " +  ly_symbol2string (s));
+      return 0.0;
+    }
+  SCM val = scope_p_->scm_elem (s);
+  if (gh_number_p (val))
+    {
+      return gh_scm2double (val);
+    }
+  else
+    {
+      programming_error ("not a real variable");
+      return 0.0;
+    }
 }
-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
 {
-    lookup_p_ = new Lookup(*s.lookup_p_);
-    geometric_ = s.geometric_;
-    whole_width = s.whole_width;
-    outfile = s.outfile;
-    linewidth = s.linewidth;
+  Real lw =  get_var ("linewidth");
+  Real ind = n? 0.0:get_var ("indent");
+
+  return Interval (ind, lw);
 }
 
 void
-Paper_def::set(Lookup*l)
+Paper_def::set_lookup (int i, SCM l)
 {
-    assert(l != lookup_p_);
-    delete lookup_p_;
-    lookup_p_ = l;
+  assert (unsmob_lookup (l));
+  lookup_alist_ = scm_assq_set_x(lookup_alist_, gh_int2scm (i), l);
 }
 
+
+/*
+  junkme.
+ */
 Real
-Paper_def::interline() const
+Paper_def::interbeam_f (int multiplicity_i) const
 {
-    return lookup_p_->ball(4).dim.y.length();
+  if (multiplicity_i <= 3)
+    return get_var ("interbeam");
+  else
+    return get_var ("interbeam4");
 }
 
-Real
-Paper_def::internote() const
+
+void
+Paper_def::print () const
 {
-    return lookup_p_->internote();
+#ifndef NPRINT
+  Music_output_def::print ();
+  if (flower_dstream)
+    gh_display (lookup_alist_);
+#endif
 }
-Real
-Paper_def::note_width()const
+
+Lookup const *
+Paper_def::lookup_l (int i) const
 {
-    return lookup_p_->ball(4).dim.x.length( );
+  SCM l = scm_assq (gh_int2scm(i), lookup_alist_);
+  return l == SCM_BOOL_F ? 0 :  unsmob_lookup (gh_cdr (l));
 }
-Real
-Paper_def::standard_height() const
+
+int Paper_def::default_count_i_ = 0;
+
+int
+Paper_def::get_next_default_count () const
 {
-    return 20 PT;
+  return default_count_i_ ++;
 }
 
 void
-Paper_def::print() const
+Paper_def::reset_default_count()
 {
-#ifndef NPRINT
-    mtor << "Paper {width: " << print_dimen(linewidth);
-    mtor << "whole: " << print_dimen(whole_width);
-    mtor << "out: " <<outfile;
-    lookup_p_->print();
-    mtor << "}\n";
-#endif
+  default_count_i_ = 0;
 }
-Lookup const *
-Paper_def::lookup_l()
+
+
+Paper_stream*
+Paper_def::paper_stream_p () const
 {
-    return lookup_p_;
+  String outname = base_output_str ();
+
+  if (outname != "-")
+    outname += String (".") + output_global_ch;
+  progress_indication (_f ("paper output to %s...",
+                          outname == "-" ? String ("<stdout>") : outname));
+
+  target_str_global_array.push (outname);
+  return new Paper_stream (outname);
 }
+
+
+String
+Paper_def::base_output_str () const
+{
+  String str = get_default_output ();
+
+  if (str.empty_b ())
+    {
+      str = default_outname_base_global;
+      int def = get_next_default_count ();
+      if (def)
+       str += "-" + to_str (def);
+    }
+  return str;
+}
+
+