lily/paper-outputter.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5   Jan Nieuwenhuizen <janneke@gnu.org>
   6
   7   LilyPond is free software: you can redistribute it and/or modify
   8   it under the terms of the GNU General Public License as published by
   9   the Free Software Foundation, either version 3 of the License, or
  10   (at your option) any later version.
  11
  12   LilyPond is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15   GNU General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License
  18   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "paper-outputter.hh"
  22
  23 #include <cmath>
  24 #include <ctime>
  25
  26 using namespace std;
  27
  28 #include "dimensions.hh"
  29 #include "file-name.hh"
  30 #include "font-metric.hh"
  31 #include "input.hh"
  32 #include "lily-version.hh"
  33 #include "main.hh"
  34 #include "output-def.hh"
  35 #include "paper-book.hh"
  36 #include "paper-system.hh"
  37 #include "scm-hash.hh"
  38 #include "string-convert.hh"
  39 #include "warn.hh"
  40
  41 #include "ly-smobs.icc"
  42
  43 Paper_outputter::Paper_outputter (SCM port, string format)
  44 {
  45   file_ = port;
  46   output_module_ = SCM_EOL;
  47   smobify_self ();
  48
  49   string module_name = "scm output-" + format;
  50   output_module_ = scm_c_resolve_module (module_name.c_str ());
  51
  52   /*
  53     Enable errors for undefined stencil routines if
  54      -dwarning-as-error is specified; else enable warnings.
  55   */
  56   SCM proc = ly_lily_module_constant ("backend-testing");
  57   scm_call_1 (proc, output_module_);
  58 }
  59
  60 Paper_outputter::~Paper_outputter ()
  61 {
  62 }
  63
  64 IMPLEMENT_SMOBS (Paper_outputter);
  65 IMPLEMENT_DEFAULT_EQUAL_P (Paper_outputter);
  66
  67 SCM
  68 Paper_outputter::mark_smob (SCM x)
  69 {
  70   Paper_outputter *p = (Paper_outputter *) SCM_CELL_WORD_1 (x);
  71   scm_gc_mark (p->output_module_);
  72   return p->file_;
  73 }
  74
  75 int
  76 Paper_outputter::print_smob (SCM /* x */,
  77                              SCM p,
  78                              scm_print_state *)
  79 {
  80   scm_puts ("#<Paper_outputter>", p);
  81   return 1;
  82 }
  83
  84 SCM
  85 Paper_outputter::file () const
  86 {
  87   return file_;
  88 }
  89
  90 SCM
  91 Paper_outputter::dump_string (SCM scm)
  92 {
  93   return scm_display (scm, file ());
  94 }
  95
  96 SCM
  97 Paper_outputter::scheme_to_string (SCM scm)
  98 {
  99   return scm_eval (scm, output_module_);
 100 }
 101
 102 SCM
 103 Paper_outputter::module () const
 104 {
 105   return output_module_;
 106 }
 107
 108 void
 109 Paper_outputter::output_scheme (SCM scm)
 110 {
 111   dump_string (scheme_to_string (scm));
 112 }
 113
 114 void
 115 paper_outputter_dump (void *po, SCM x)
 116 {
 117   Paper_outputter *me = (Paper_outputter *) po;
 118   me->output_scheme (x);
 119 }
 120
 121 void
 122 Paper_outputter::output_stencil (Stencil stil)
 123 {
 124   interpret_stencil_expression (stil.expr (), paper_outputter_dump,
 125                                 (void *) this, Offset (0, 0));
 126 }
 127
 128 void
 129 Paper_outputter::close ()
 130 {
 131   if (scm_port_p (file_) == SCM_BOOL_T)
 132     {
 133       scm_close_port (file_);
 134       /*
 135         Remove the "warning" definitions for missing stencil
 136         expressions so that we start fresh with the next \book
 137         block.  --pmccarty
 138       */
 139       SCM proc = ly_lily_module_constant ("remove-stencil-warnings");
 140       scm_call_1 (proc, output_module_);
 141     }
 142 }