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     Enable errors for undefined stencil routines if
  43      -dwarning-as-error is specified; else enable warnings.
  44   */
  45   SCM proc = ly_lily_module_constant ("backend-testing");
  46   scm_call_1 (proc, output_module_);
  47 }
  48
  49 Paper_outputter::~Paper_outputter ()
  50 {
  51 }
  52
  53 IMPLEMENT_SMOBS (Paper_outputter);
  54 IMPLEMENT_DEFAULT_EQUAL_P (Paper_outputter);
  55
  56 SCM
  57 Paper_outputter::mark_smob (SCM x)
  58 {
  59   Paper_outputter *p = (Paper_outputter *) SCM_CELL_WORD_1 (x);
  60   scm_gc_mark (p->output_module_);
  61   return p->file_;
  62 }
  63
  64 int
  65 Paper_outputter::print_smob (SCM /* x */,
  66                              SCM p,
  67                              scm_print_state *)
  68 {
  69   scm_puts ("#<Paper_outputter>", p);
  70   return 1;
  71 }
  72
  73 SCM
  74 Paper_outputter::file () const
  75 {
  76   return file_;
  77 }
  78
  79 SCM
  80 Paper_outputter::dump_string (SCM scm)
  81 {
  82   return scm_display (scm, file ());
  83 }
  84
  85 SCM
  86 Paper_outputter::scheme_to_string (SCM scm)
  87 {
  88   return scm_eval (scm, output_module_);
  89 }
  90
  91 void
  92 Paper_outputter::output_scheme (SCM scm)
  93 {
  94   dump_string (scheme_to_string (scm));
  95 }
  96
  97 void
  98 paper_outputter_dump (void *po, SCM x)
  99 {
 100   Paper_outputter *me = (Paper_outputter *) po;
 101   me->output_scheme (x);
 102 }
 103
 104 void
 105 Paper_outputter::output_stencil (Stencil stil)
 106 {
 107   interpret_stencil_expression (stil.expr (), paper_outputter_dump,
 108                                 (void *) this, Offset (0, 0));
 109 }
 110
 111 void
 112 Paper_outputter::close ()
 113 {
 114   if (scm_port_p (file_) == SCM_BOOL_T)
 115     {
 116       scm_close_port (file_);
 117       /*
 118         Remove the "warning" definitions for missing stencil
 119         expressions so that we start fresh with the next \book
 120         block.  --pmccarty
 121       */
 122       SCM proc = ly_lily_module_constant ("remove-stencil-warnings");
 123       scm_call_1 (proc, output_module_);
 124     }
 125 }