2 global-context-scheme.cc -- implement Global_context bindings
4 source file of the GNU LilyPond music typesetter
6 (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #include "cpu-timer.hh"
10 #include "global-context.hh"
11 #include "international.hh"
13 #include "music-iterator.hh"
14 #include "music-output.hh"
16 #include "object-key.hh"
17 #include "output-def.hh"
20 LY_DEFINE (ly_format_output, "ly:format-output",
21 1, 0, 0, (SCM context),
22 "Given a Global context in its final state, "
23 "process it and return the @code{Music_output} object in its final state.")
25 Global_context *g = dynamic_cast<Global_context *> (unsmob_context (context));
26 SCM_ASSERT_TYPE (g, context, SCM_ARG1, __FUNCTION__, "Global context");
28 SCM output = g->get_output ();
29 progress_indication ("\n");
30 unsmob_music_output (output)->process ();
34 LY_DEFINE (ly_run_translator, "ly:run-translator",
35 2, 1, 0, (SCM mus, SCM output_def, SCM key),
36 "Process @var{mus} according to @var{output_def}. \n"
37 "An interpretation context is set up,\n"
38 "and @var{mus} is interpreted with it. \n"
39 "The context is returned in its final state.\n"
41 "Optionally, this routine takes an Object-key to\n"
42 "to uniquely identify the Score block containing it.\n")
44 Output_def *odef = unsmob_output_def (output_def);
45 Music *music = unsmob_music (mus);
48 || !music->get_length ().to_bool ())
50 warning (_ ("no music found in score"));
54 SCM_ASSERT_TYPE (music, mus, SCM_ARG1, __FUNCTION__, "Music");
55 SCM_ASSERT_TYPE (odef, output_def, SCM_ARG2, __FUNCTION__,
60 Global_context *trans = new Global_context (odef, music->get_length (),
64 programming_error ("no toplevel translator");
68 message (_ ("Interpreting music... "));
70 SCM protected_iter = Music_iterator::get_static_get_iterator (music);
71 Music_iterator *iter = unsmob_iterator (protected_iter);
72 iter->init_translator (music, trans);
73 iter->construct_children ();
77 warning (_ ("no music found in score"));
78 /* todo: should throw exception. */
82 trans->run_iterator_on_me (iter);
84 scm_remember_upto_here_1 (protected_iter);
87 if (be_verbose_global)
88 message (_f ("elapsed time: %.2f seconds", timer.read ()));
90 return trans->unprotect ();