lily/score-scheme.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 2005--2010 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 @var{score}.")
  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
  77 LY_DEFINE (ly_score_set_header_x, "ly:score-set-header!",
  78            2, 0, 0, (SCM score, SCM module),
  79            "Set the score header.")
  80 {
  81   LY_ASSERT_SMOB (Score, score, 1);
  82   SCM_ASSERT_TYPE (ly_is_module (module), module, SCM_ARG2, __FUNCTION__,
  83                    "module");
  84
  85   Score *sc = unsmob_score (score);
  86   sc->set_header (module);
  87   return SCM_UNSPECIFIED;
  88 }
  89
  90
  91 LY_DEFINE (ly_score_music, "ly:score-music",
  92            1, 0, 0, (SCM score),
  93            "Return score music.")
  94 {
  95   LY_ASSERT_SMOB (Score, score, 1);
  96   Score *sc = unsmob_score (score);
  97   return sc->get_music ();
  98 }
  99
 100 LY_DEFINE (ly_score_error_p, "ly:score-error?",
 101            1, 0, 0, (SCM score),
 102            "Was there an error in the score?")
 103 {
 104   LY_ASSERT_SMOB (Score, score, 1);
 105   Score *sc = unsmob_score (score);
 106   return scm_from_bool (sc->error_found_);
 107 }
 108
 109 LY_DEFINE (ly_score_embedded_format, "ly:score-embedded-format",
 110            2, 0, 0, (SCM score, SCM layout),
 111            "Run @var{score} through @var{layout} (an output definition)"
 112            " scaled to correct output-scale already, returning a list of"
 113            " layout-lines.  This function takes an optional"
 114            " @code{Object_key} argument.")
 115 {
 116   LY_ASSERT_SMOB (Score, score, 1);
 117   LY_ASSERT_SMOB (Output_def, layout, 2);
 118
 119   Score *sc = unsmob_score (score);
 120   Output_def *od = unsmob_output_def (layout);
 121
 122   if (sc->error_found_)
 123     return SCM_EOL;
 124
 125   Output_def *score_def = 0;
 126
 127   /* UGR, FIXME, these are default \layout blocks once again.  They
 128      suck. */
 129   for (vsize i = 0; !score_def && i < sc->defs_.size (); i++)
 130     if (sc->defs_[i]->c_variable ("is-layout") == SCM_BOOL_T)
 131       score_def = sc->defs_[i];
 132
 133   if (!score_def)
 134     return SCM_BOOL_F;
 135
 136   score_def = score_def->clone ();
 137   SCM prot = score_def->unprotect ();
 138
 139   /* TODO: SCORE_DEF should be scaled according to OD->parent_ or OD
 140      itself. */
 141   score_def->parent_ = od;
 142
 143   SCM context = ly_run_translator (sc->get_music (), score_def->self_scm ());
 144   SCM output = ly_format_output (context);
 145
 146   scm_remember_upto_here_1 (prot);
 147   return output;
 148 }