2 global-context-scheme.cc -- implement Global_context bindings
4 source file of the GNU LilyPond music typesetter
6 (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
10 #include "music-output.hh"
11 #include "output-def.hh"
12 #include "music-iterator.hh"
14 #include "cpu-timer.hh"
15 #include "global-context.hh"
16 #include "object-key.hh"
19 LY_DEFINE (ly_format_output, "ly:format-output",
20 1, 0, 0, (SCM context),
21 "Given a Global context in its final state, "
22 "process it and return the @code{Music_output} object in its final state.")
24 Global_context *g = dynamic_cast<Global_context *> (unsmob_context (context));
25 SCM_ASSERT_TYPE (g, context, SCM_ARG1, __FUNCTION__, "Global context");
27 SCM output = g->get_output ();
28 progress_indication ("\n");
29 unsmob_music_output (output)->process ();
33 LY_DEFINE (ly_run_translator, "ly:run-translator",
34 2, 1, 0, (SCM mus, SCM output_def, SCM key),
35 "Process @var{mus} according to @var{output_def}. \n"
36 "An interpretation context is set up,\n"
37 "and @var{mus} is interpreted with it. \n"
38 "The context is returned in its final state.\n"
40 "\n\nOptionally, this routine takes an Object-key to\n"
41 "to uniquely identify the Score block containing it.\n")
43 Output_def *odef = unsmob_output_def (output_def);
44 Music *music = unsmob_music (mus);
47 || !music->get_length ().to_bool ())
49 warning (_ ("no music found in score"));
53 SCM_ASSERT_TYPE (music, mus, SCM_ARG1, __FUNCTION__, "Music");
54 SCM_ASSERT_TYPE (odef, output_def, SCM_ARG2, __FUNCTION__,
59 Global_context *trans = new Global_context (odef, music->get_length (), unsmob_key (key));
62 programming_error ("no toplevel translator");
66 message (_ ("Interpreting music... "));
68 SCM protected_iter = Music_iterator::get_static_get_iterator (music);
69 Music_iterator *iter = unsmob_iterator (protected_iter);
70 iter->init_translator (music, trans);
72 iter->construct_children ();
76 warning (_ ("no music found in score"));
77 /* todo: should throw exception. */
81 trans->run_iterator_on_me (iter);
83 scm_remember_upto_here_1 (protected_iter);
86 if (be_verbose_global)
87 message (_f ("elapsed time: %.2f seconds", timer.read ()));
89 return trans->unprotect ();