source file of the GNU LilyPond music typesetter
- (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 2005--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "cpu-timer.hh"
#include "music-iterator.hh"
#include "music-output.hh"
#include "music.hh"
-#include "object-key.hh"
#include "output-def.hh"
#include "translator-group.hh"
#include "warn.hh"
LY_DEFINE (ly_format_output, "ly:format-output",
1, 0, 0, (SCM context),
- "Given a Global context in its final state, "
- "process it and return the @code{Music_output} object in its final state.")
+ "Given a global context in its final state,"
+ " process it and return the @code{Music_output} object"
+ " in its final state.")
{
Global_context *g = dynamic_cast<Global_context *> (unsmob_context (context));
- SCM_ASSERT_TYPE (g, context, SCM_ARG1, __FUNCTION__, "Global context");
+
+ LY_ASSERT_TYPE (unsmob_global_context, context, 1)
SCM output = g->get_output ();
progress_indication ("\n");
- unsmob_music_output (output)->process ();
+
+ if (Music_output *od = unsmob_music_output (output))
+ od->process ();
+
return output;
}
LY_DEFINE (ly_make_global_translator, "ly:make-global-translator",
1, 0, 0, (SCM global),
- "Create a translator group and connect it to the global context\n"
- "@var{global}. The translator group is returned.")
+ "Create a translator group and connect it to the global context"
+ " @var{global}. The translator group is returned.")
{
Global_context *g = dynamic_cast<Global_context *> (unsmob_context (global));
- SCM_ASSERT_TYPE (g, global, SCM_ARG1, __FUNCTION__, "Global context");
+ LY_ASSERT_TYPE (unsmob_global_context, global, 1)
Translator_group *tg = new Translator_group ();
tg->connect_to_context (g);
return tg->unprotect ();
}
-LY_DEFINE (ly_run_translator, "ly:run-translator",
- 2, 1, 0, (SCM mus, SCM output_def, SCM key),
- "Process @var{mus} according to @var{output_def}. \n"
- "An interpretation context is set up,\n"
- "and @var{mus} is interpreted with it. \n"
- "The context is returned in its final state.\n"
- "\n\n"
- "Optionally, this routine takes an Object-key to\n"
- "to uniquely identify the Score block containing it.\n")
+LY_DEFINE (ly_make_global_context, "ly:make-global-context",
+ 1, 0, 0, (SCM output_def),
+ "Set up a global interpretation context, using the output"
+ " block @var{output_def}. The context is returned.")
{
- Output_def *odef = unsmob_output_def (output_def);
- Music *music = unsmob_music (mus);
+ LY_ASSERT_SMOB (Output_def, output_def, 1);
+ Output_def *odef = unsmob_output_def (output_def);
- if (!music
- || !music->get_length ().to_bool ())
+ Global_context *glob = new Global_context (odef);
+
+ if (!glob)
{
- warning (_ ("no music found in score"));
+ programming_error ("no toplevel translator");
return SCM_BOOL_F;
}
- SCM_ASSERT_TYPE (music, mus, SCM_ARG1, __FUNCTION__, "Music");
- SCM_ASSERT_TYPE (odef, output_def, SCM_ARG2, __FUNCTION__,
- "Output definition");
+ return glob->unprotect ();
+}
- Cpu_timer timer;
+LY_DEFINE (ly_interpret_music_expression, "ly:interpret-music-expression",
+ 2, 0, 0, (SCM mus, SCM ctx),
+ "Interpret the music expression @var{mus} in the global context"
+ " @var{ctx}. The context is returned in its final state.")
+{
+ LY_ASSERT_SMOB (Music, mus, 1);
+ LY_ASSERT_TYPE (unsmob_global_context, ctx, 2);
- Global_context *glob = new Global_context (odef, unsmob_key (key));
- if (!glob)
+ Music *music = unsmob_music (mus);
+ if (!music
+ || !music->get_length ().to_bool ())
{
- programming_error ("Couldn't create Global context");
+ warning (_ ("no music found in score"));
return SCM_BOOL_F;
}
- SCM tgs = ly_make_global_translator (glob->self_scm ());
- Translator_group *tg = unsmob_translator_group (tgs);
+ Global_context *g = dynamic_cast<Global_context *> (unsmob_context (ctx));
+
+ Cpu_timer timer;
message (_ ("Interpreting music... "));
SCM protected_iter = Music_iterator::get_static_get_iterator (music);
Music_iterator *iter = unsmob_iterator (protected_iter);
- iter->init_translator (music, glob);
+
+ iter->init_context (music, g);
iter->construct_children ();
if (!iter->ok ())
return SCM_BOOL_F;
}
- glob->run_iterator_on_me (iter);
+ g->run_iterator_on_me (iter);
+
iter->quit ();
scm_remember_upto_here_1 (protected_iter);
- send_stream_event (glob, "Finish", 0, 0);
+
+ send_stream_event (g, "Finish", 0, 0);
if (be_verbose_global)
message (_f ("elapsed time: %.2f seconds", timer.read ()));
- return glob->unprotect ();
+ return ctx;
+}
+
+LY_DEFINE (ly_run_translator, "ly:run-translator",
+ 2, 1, 0, (SCM mus, SCM output_def),
+ "Process @var{mus} according to @var{output-def}. An"
+ " interpretation context is set up, and @var{mus} is"
+ " interpreted with it. The context is returned in its"
+ " final state.\n"
+ "\n"
+ "Optionally, this routine takes an object-key to"
+ " to uniquely identify the score block containing it.")
+{
+ LY_ASSERT_SMOB (Music, mus, 1);
+ LY_ASSERT_SMOB (Output_def, output_def, 2);
+
+ SCM glob = ly_make_global_context (output_def);
+ ly_make_global_translator (glob);
+ ly_interpret_music_expression (mus, glob);
+ return glob;
}
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