lily/score-scheme.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 2005--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "score.hh"
  21
  22 #include "music.hh"
  23 #include "output-def.hh"
  24 #include "global-context.hh"
  25 #include "music-output.hh"
  26 #include "paper-score.hh"
  27 #include "paper-book.hh"
  28
  29 LY_DEFINE (ly_make_score, "ly:make-score",
  30            1, 0, 0,
  31            (SCM music),
  32            "Return score with @var{music} encapsulated in it.")
  33 {
  34   LY_ASSERT_SMOB (Music, music, 1);
  35
  36   Score *score = new Score;
  37   score->set_music (music);
  38
  39   return score->unprotect ();
  40 }
  41
  42 LY_DEFINE (ly_score_output_defs, "ly:score-output-defs",
  43            1, 0, 0, (SCM score),
  44            "All output definitions in a score.")
  45 {
  46   LY_ASSERT_SMOB (Score, score, 1);
  47   Score *sc = unsmob_score (score);
  48
  49   SCM l = SCM_EOL;
  50   for (vsize i = 0; i < sc->defs_.size (); i++)
  51     l = scm_cons (sc->defs_[i]->self_scm (), l);
  52   return scm_reverse_x (l, SCM_EOL);
  53 }
  54
  55 LY_DEFINE (ly_score_add_output_def_x, "ly:score-add-output-def!",
  56            2, 0, 0, (SCM score, SCM def),
  57            "Add an output definition @var{def} to @var{score}.")
  58 {
  59   LY_ASSERT_SMOB (Score, score, 1);
  60   LY_ASSERT_SMOB (Output_def, def, 2);
  61   Score *sc = unsmob_score (score);
  62   Output_def *output_def = unsmob_output_def (def);
  63   sc->add_output_def (output_def);
  64   return SCM_UNSPECIFIED;
  65 }
  66
  67 LY_DEFINE (ly_score_header, "ly:score-header",
  68            1, 0, 0, (SCM score),
  69            "Return score header.")
  70 {
  71   LY_ASSERT_SMOB (Score, score, 1);
  72   Score *sc = unsmob_score (score);
  73   return sc->get_header ();
  74 }
  75
  76 LY_DEFINE (ly_score_set_header_x, "ly:score-set-header!",
  77            2, 0, 0, (SCM score, SCM module),
  78            "Set the score header.")
  79 {
  80   LY_ASSERT_SMOB (Score, score, 1);
  81   SCM_ASSERT_TYPE (ly_is_module (module), module, SCM_ARG2, __FUNCTION__,
  82                    "module");
  83
  84   Score *sc = unsmob_score (score);
  85   sc->set_header (module);
  86   return SCM_UNSPECIFIED;
  87 }
  88
  89 LY_DEFINE (ly_score_music, "ly:score-music",
  90            1, 0, 0, (SCM score),
  91            "Return score music.")
  92 {
  93   LY_ASSERT_SMOB (Score, score, 1);
  94   Score *sc = unsmob_score (score);
  95   return sc->get_music ();
  96 }
  97
  98 LY_DEFINE (ly_score_error_p, "ly:score-error?",
  99            1, 0, 0, (SCM score),
 100            "Was there an error in the score?")
 101 {
 102   LY_ASSERT_SMOB (Score, score, 1);
 103   Score *sc = unsmob_score (score);
 104   return scm_from_bool (sc->error_found_);
 105 }
 106
 107 LY_DEFINE (ly_score_embedded_format, "ly:score-embedded-format",
 108            2, 0, 0, (SCM score, SCM layout),
 109            "Run @var{score} through @var{layout} (an output definition)"
 110            " scaled to correct output-scale already, returning a list of"
 111            " layout-lines.")
 112 {
 113   LY_ASSERT_SMOB (Score, score, 1);
 114   LY_ASSERT_SMOB (Output_def, layout, 2);
 115
 116   Score *sc = unsmob_score (score);
 117   Output_def *od = unsmob_output_def (layout);
 118
 119   if (sc->error_found_)
 120     return SCM_EOL;
 121
 122   Output_def *score_def = 0;
 123
 124   /* UGR, FIXME, these are default \layout blocks once again.  They
 125      suck. */
 126   for (vsize i = 0; !score_def && i < sc->defs_.size (); i++)
 127     if (sc->defs_[i]->c_variable ("is-layout") == SCM_BOOL_T)
 128       score_def = sc->defs_[i];
 129
 130   if (!score_def)
 131     return SCM_BOOL_F;
 132
 133   score_def = score_def->clone ();
 134   SCM prot = score_def->unprotect ();
 135
 136   /* TODO: SCORE_DEF should be scaled according to OD->parent_ or OD
 137      itself. */
 138   score_def->parent_ = od;
 139
 140   SCM context = ly_run_translator (sc->get_music (), score_def->self_scm ());
 141   SCM output = ly_format_output (context);
 142
 143   scm_remember_upto_here_1 (prot);
 144   return output;
 145 }