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--2007 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, SCM p, scm_print_state*)
  59 {
  60   (void) x;
  61   scm_puts ("#<Paper_outputter>", p);
  62   return 1;
  63 }
  64
  65 SCM
  66 Paper_outputter::file () const
  67 {
  68   return file_;
  69 }
  70
  71 SCM
  72 Paper_outputter::dump_string (SCM scm)
  73 {
  74   return scm_display (scm, file ());
  75 }
  76
  77 SCM
  78 Paper_outputter::scheme_to_string (SCM scm)
  79 {
  80   return scm_eval (scm, output_module_);
  81 }
  82
  83 void
  84 Paper_outputter::output_scheme (SCM scm)
  85 {
  86   dump_string (scheme_to_string (scm));
  87 }
  88
  89 void
  90 paper_outputter_dump (void *po, SCM x)
  91 {
  92   Paper_outputter *me = (Paper_outputter *) po;
  93   me->output_scheme (x);
  94 }
  95
  96 void
  97 Paper_outputter::output_stencil (Stencil stil)
  98 {
  99   interpret_stencil_expression (stil.expr (), paper_outputter_dump,
 100                                 (void *) this, Offset (0, 0));
 101 }
 102
 103 void
 104 Paper_outputter::close ()
 105 {
 106   if (scm_port_p (file_) == SCM_BOOL_T)
 107     scm_close_port (file_);
 108 }