lily/paper-outputter.cc

   1 /*
   2   paper-outputter.cc -- implement Paper_outputter
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7   Jan Nieuwenhuizen <janneke@gnu.org>
   8 */
   9
  10 #include "paper-outputter.hh"
  11
  12 #include <cmath>
  13 #include <ctime>
  14
  15 using namespace std;
  16
  17 #include "dimensions.hh"
  18 #include "file-name.hh"
  19 #include "font-metric.hh"
  20 #include "input.hh"
  21 #include "lily-version.hh"
  22 #include "main.hh"
  23 #include "output-def.hh"
  24 #include "paper-book.hh"
  25 #include "paper-system.hh"
  26 #include "scm-hash.hh"
  27 #include "string-convert.hh"
  28 #include "warn.hh"
  29
  30 #include "ly-smobs.icc"
  31
  32 Paper_outputter::Paper_outputter (SCM port, string format)
  33 {
  34   file_ = port;
  35   output_module_ = SCM_EOL;
  36   smobify_self ();
  37
  38   string module_name = "scm output-" + format;
  39   output_module_ = scm_c_resolve_module (module_name.c_str ());
  40 }
  41
  42 Paper_outputter::~Paper_outputter ()
  43 {
  44 }
  45
  46 IMPLEMENT_SMOBS (Paper_outputter);
  47 IMPLEMENT_DEFAULT_EQUAL_P (Paper_outputter);
  48
  49 SCM
  50 Paper_outputter::mark_smob (SCM x)
  51 {
  52   Paper_outputter *p = (Paper_outputter *) SCM_CELL_WORD_1 (x);
  53   scm_gc_mark (p->output_module_);
  54   return p->file_;
  55 }
  56
  57 int
  58 Paper_outputter::print_smob (SCM /* x */,
  59                              SCM p,
  60                              scm_print_state *)
  61 {
  62   scm_puts ("#<Paper_outputter>", p);
  63   return 1;
  64 }
  65
  66 SCM
  67 Paper_outputter::file () const
  68 {
  69   return file_;
  70 }
  71
  72 SCM
  73 Paper_outputter::dump_string (SCM scm)
  74 {
  75   return scm_display (scm, file ());
  76 }
  77
  78 SCM
  79 Paper_outputter::scheme_to_string (SCM scm)
  80 {
  81   return scm_eval (scm, output_module_);
  82 }
  83
  84 void
  85 Paper_outputter::output_scheme (SCM scm)
  86 {
  87   dump_string (scheme_to_string (scm));
  88 }
  89
  90 void
  91 paper_outputter_dump (void *po, SCM x)
  92 {
  93   Paper_outputter *me = (Paper_outputter *) po;
  94   me->output_scheme (x);
  95 }
  96
  97 void
  98 Paper_outputter::output_stencil (Stencil stil)
  99 {
 100   interpret_stencil_expression (stil.expr (), paper_outputter_dump,
 101                                 (void *) this, Offset (0, 0));
 102 }
 103
 104 void
 105 Paper_outputter::close ()
 106 {
 107   if (scm_port_p (file_) == SCM_BOOL_T)
 108     scm_close_port (file_);
 109 }