/*
- new-part-combine-music-iterator.cc -- implement Part_combine_iterator
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2004--2015 Han-Wen Nienhuys
- (c) 2004--2007 Han-Wen Nienhuys
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "context.hh"
#include "music-sequence.hh"
#include "warn.hh"
-typedef enum Outlet_type
- {
- CONTEXT_ONE, CONTEXT_TWO,
- CONTEXT_SHARED, CONTEXT_SOLO,
- CONTEXT_NULL, NUM_OUTLETS
- };
+enum Outlet_type
+{
+ CONTEXT_ONE, CONTEXT_TWO,
+ CONTEXT_SHARED, CONTEXT_SOLO,
+ CONTEXT_NULL, NUM_OUTLETS
+};
-static const char *outlet_names_[NUM_OUTLETS] =
- {"one", "two", "shared", "solo", "null"};
+static const char *outlet_names_[NUM_OUTLETS]
+ = {"one", "two", "shared", "solo", "null"};
class Part_combine_iterator : public Music_iterator
{
virtual bool ok () const;
private:
- /* used by try_process */
- DECLARE_LISTENER (set_busy);
- bool busy_;
- bool notice_busy_;
-
- bool try_process (Music_iterator *i, Moment m);
-
Music_iterator *first_iter_;
Music_iterator *second_iter_;
Moment start_moment_;
SCM split_list_;
- Stream_event *unisono_event_;
- Stream_event *solo_one_event_;
- Stream_event *solo_two_event_;
- Stream_event *mmrest_event_;
-
+ Stream_event *mmrest_event_;
+
enum Status
- {
- APART,
- TOGETHER,
- SOLO1,
- SOLO2,
- UNISONO,
- UNISILENCE,
- };
+ {
+ APART,
+ TOGETHER,
+ SOLO,
+ UNISONO,
+ UNISILENCE,
+ };
Status state_;
- Status playing_state_;
- /*
- Should be SOLO1 or SOLO2
- */
- Status last_playing_;
+ // For states in which it matters, this is the relevant part,
+ // e.g. 1 for Solo I, 2 for Solo II.
+ int chosen_part_;
/*
- TODO: this is getting of hand...
+ TODO: this is getting off hand...
*/
Context_handle handles_[NUM_OUTLETS];
void substitute_both (Outlet_type to1,
- Outlet_type to2);
-
+ Outlet_type to2);
+ void kill_mmrest_in_inactive_outlets ();
/* parameter is really Outlet_type */
void kill_mmrest (int in);
void chords_together ();
void solo1 ();
void solo2 ();
- void apart (bool silent);
- void unisono (bool silent);
+ void apart ();
+ void unisono (bool silent, int newpart);
};
void
first_iter_->quit ();
if (second_iter_)
second_iter_->quit ();
-
- // Add listeners to all contexts except Devnull.
- for (int i = 0; i < NUM_OUTLETS; i++)
- {
- Context *c = handles_[i].get_outlet ();
- if (c->is_alias (ly_symbol2scm ("Voice")))
- c->event_source ()->remove_listener (GET_LISTENER (set_busy), ly_symbol2scm ("music-event"));
- handles_[i].set_context (0);
- }
}
Part_combine_iterator::Part_combine_iterator ()
{
mmrest_event_ = 0;
- unisono_event_ = 0;
- solo_two_event_ = 0;
- solo_one_event_= 0;
first_iter_ = 0;
second_iter_ = 0;
split_list_ = SCM_EOL;
state_ = APART;
- playing_state_ = APART;
+ chosen_part_ = 1;
}
void
scm_gc_mark (first_iter_->self_scm ());
if (second_iter_)
scm_gc_mark (second_iter_->self_scm ());
-
- Stream_event *ptrs[] = {
- unisono_event_,
- mmrest_event_,
- solo_two_event_,
- solo_one_event_,
- 0
- };
- for (int i = 0; ptrs[i]; i++)
- if (ptrs[i])
- scm_gc_mark (ptrs[i]->self_scm ());
+ if (mmrest_event_)
+ scm_gc_mark (mmrest_event_->self_scm ());
}
void
Part_combine_iterator::derived_substitute (Context *f,
- Context *t)
+ Context *t)
{
if (first_iter_)
first_iter_->substitute_outlet (f, t);
}
void
-Part_combine_iterator::chords_together ()
+Part_combine_iterator::substitute_both (Outlet_type to1,
+ Outlet_type to2)
{
- if (state_ == TOGETHER)
- return;
- else
+ first_iter_->substitute_outlet (first_iter_->get_outlet (),
+ handles_[to1].get_context ());
+ second_iter_->substitute_outlet (second_iter_->get_outlet (),
+ handles_[to2].get_context ());
+}
+
+void Part_combine_iterator::kill_mmrest_in_inactive_outlets ()
+{
+ for (int j = 0; j < NUM_OUTLETS; j++)
{
- playing_state_ = TOGETHER;
- state_ = TOGETHER;
+ Context *c = handles_[j].get_context ();
- substitute_both (CONTEXT_SHARED, CONTEXT_SHARED);
+ if (first_iter_->get_outlet () == c)
+ continue;
+
+ if (second_iter_->get_outlet () == c)
+ continue;
+
+ kill_mmrest (j);
}
}
void
Part_combine_iterator::kill_mmrest (int in)
{
-
+
if (!mmrest_event_)
{
- mmrest_event_ = new Stream_event (ly_symbol2scm ("multi-measure-rest-event"));
+ mmrest_event_ = new Stream_event
+ (scm_call_1 (ly_lily_module_constant ("ly:make-event-class"),
+ ly_symbol2scm ("multi-measure-rest-event")));
mmrest_event_->set_property ("duration", SCM_EOL);
mmrest_event_->unprotect ();
}
- handles_[in].get_outlet ()->event_source ()->broadcast (mmrest_event_);
+ handles_[in].get_context ()->event_source ()->broadcast (mmrest_event_);
}
void
-Part_combine_iterator::solo1 ()
+Part_combine_iterator::unisono (bool silent, int newpart)
{
- if (state_ == SOLO1)
+ Status newstate = (silent) ? UNISILENCE : UNISONO;
+
+ if ((newstate == state_) and (newpart == chosen_part_))
return;
else
{
- state_ = SOLO1;
- substitute_both (CONTEXT_SOLO, CONTEXT_NULL);
-
- kill_mmrest (CONTEXT_TWO);
- kill_mmrest (CONTEXT_SHARED);
-
- if (playing_state_ != SOLO1)
- {
- if (!solo_one_event_)
- {
- solo_one_event_ = new Stream_event (ly_symbol2scm ("solo-one-event"));
- solo_one_event_->unprotect ();
- }
+ Outlet_type c1 = (newpart == 2) ? CONTEXT_NULL : CONTEXT_SHARED;
+ Outlet_type c2 = (newpart == 2) ? CONTEXT_SHARED : CONTEXT_NULL;
+ substitute_both (c1, c2);
- first_iter_->get_outlet ()->event_source ()->broadcast (solo_one_event_);
- }
- playing_state_ = SOLO1;
+ state_ = newstate;
+ chosen_part_ = newpart;
}
}
void
-Part_combine_iterator::substitute_both (Outlet_type to1,
- Outlet_type to2)
+Part_combine_iterator::solo1 ()
{
- Outlet_type tos[] = {to1, to2};
-
- Music_iterator *mis[] = {first_iter_, second_iter_};
-
- for (int i = 0; i < 2; i++)
- {
- for (int j = 0; j < NUM_OUTLETS; j++)
- if (j != tos[i])
- mis[i]->substitute_outlet (handles_[j].get_outlet (), handles_[tos[i]].get_outlet ());
- }
-
- for (int j = 0; j < NUM_OUTLETS; j++)
+ if ((state_ == SOLO) && (chosen_part_ == 1))
+ return;
+ else
{
- if (j != to1 && j != to2)
- kill_mmrest (j);
+ state_ = SOLO;
+ chosen_part_ = 1;
+ substitute_both (CONTEXT_SOLO, CONTEXT_NULL);
}
}
void
-Part_combine_iterator::unisono (bool silent)
+Part_combine_iterator::solo2 ()
{
- Status newstate = (silent) ? UNISILENCE : UNISONO;
-
- if (newstate == state_)
+ if ((state_ == SOLO) and (chosen_part_ == 2))
return;
else
{
- /*
- If we're coming from SOLO2 state, we might have kill mmrests
- in the 1st voice, so in that case, we use the second voice
- as a basis for events.
- */
- Outlet_type c1 = (last_playing_ == SOLO2) ? CONTEXT_NULL : CONTEXT_SHARED;
- Outlet_type c2 = (last_playing_ == SOLO2) ? CONTEXT_SHARED : CONTEXT_NULL;
- substitute_both (c1, c2);
- kill_mmrest ((last_playing_ == SOLO2)
- ? CONTEXT_ONE : CONTEXT_TWO);
- kill_mmrest (CONTEXT_SHARED);
-
- if (playing_state_ != UNISONO
- && newstate == UNISONO)
- {
- if (!unisono_event_)
- {
- unisono_event_ = new Stream_event (ly_symbol2scm ("unisono-event"));
- unisono_event_->unprotect ();
- }
-
-
- Context *out = (last_playing_ == SOLO2 ? second_iter_ : first_iter_)
- ->get_outlet ();
- out->event_source ()->broadcast (unisono_event_);
- playing_state_ = UNISONO;
- }
- state_ = newstate;
+ state_ = SOLO;
+ chosen_part_ = 2;
+ substitute_both (CONTEXT_NULL, CONTEXT_SOLO);
}
}
void
-Part_combine_iterator::solo2 ()
+Part_combine_iterator::chords_together ()
{
- if (state_ == SOLO2)
+ if (state_ == TOGETHER)
return;
else
{
- state_ = SOLO2;
-
- substitute_both (CONTEXT_NULL, CONTEXT_SOLO);
+ state_ = TOGETHER;
- if (playing_state_ != SOLO2)
- {
- if (!solo_two_event_)
- {
- solo_two_event_ = new Stream_event (ly_symbol2scm ("solo-two-event"));
- solo_two_event_->unprotect ();
- }
-
- second_iter_->get_outlet ()->event_source ()->broadcast (solo_two_event_);
- playing_state_ = SOLO2;
- }
+ substitute_both (CONTEXT_SHARED, CONTEXT_SHARED);
}
}
void
-Part_combine_iterator::apart (bool silent)
+Part_combine_iterator::apart ()
{
- if (!silent)
- playing_state_ = APART;
-
if (state_ == APART)
return;
else
/* find context below c: otherwise we may create new staff for each voice */
c = c->find_create_context (type, outlet_names_[i], SCM_EOL);
handles_[i].set_context (c);
- if (c->is_alias (ly_symbol2scm ("Voice")))
- c->event_source ()->add_listener (GET_LISTENER (set_busy), ly_symbol2scm ("music-event"));
}
SCM lst = get_music ()->get_property ("elements");
- Context *one = handles_[CONTEXT_ONE].get_outlet ();
+ Context *one = handles_[CONTEXT_ONE].get_context ();
set_context (one);
- first_iter_ = unsmob_iterator (get_iterator (unsmob_music (scm_car (lst))));
- Context *two = handles_[CONTEXT_TWO].get_outlet ();
+ first_iter_ = unsmob<Music_iterator> (get_iterator (unsmob<Music> (scm_car (lst))));
+ Context *two = handles_[CONTEXT_TWO].get_context ();
set_context (two);
- second_iter_ = unsmob_iterator (get_iterator (unsmob_music (scm_cadr (lst))));
-
- char const *syms[]
- = {
- "Stem",
- "DynamicLineSpanner",
- "Tie",
- "Dots",
- "Rest",
- "Slur",
- "TextScript",
- "Script",
- 0
- };
-
- for (char const **p = syms; *p; p++)
- {
- SCM sym = ly_symbol2scm (*p);
- execute_pushpop_property (one, sym,
- ly_symbol2scm ("direction"), scm_from_int (1));
-
- execute_pushpop_property (two, sym,
- ly_symbol2scm ("direction"), scm_from_int (-1));
- }
-}
-
-IMPLEMENT_LISTENER (Part_combine_iterator, set_busy);
-void
-Part_combine_iterator::set_busy (SCM se)
-{
- if (!notice_busy_)
- return;
-
- Stream_event *e = unsmob_stream_event (se);
-
- if (e->in_event_class ("note-event") || e->in_event_class ("cluster-note-event"))
- busy_ = true;
-}
-
-/*
- Processes a moment in an iterator, and returns whether any new music
- was reported.
-*/
-bool
-Part_combine_iterator::try_process (Music_iterator *i, Moment m)
-{
- busy_ = false;
- notice_busy_ = true;
-
- i->process (m);
-
- notice_busy_ = false;
- return busy_;
+ second_iter_ = unsmob<Music_iterator> (get_iterator (unsmob<Music> (scm_cadr (lst))));
+ Context *shared = handles_[CONTEXT_SHARED].get_context ();
+ set_context (shared);
}
void
for (; scm_is_pair (split_list_); split_list_ = scm_cdr (split_list_))
{
- splitm = unsmob_moment (scm_caar (split_list_));
+ splitm = unsmob<Moment> (scm_caar (split_list_));
if (splitm && *splitm + start_moment_ > now)
- break;
+ break;
SCM tag = scm_cdar (split_list_);
- if (tag == ly_symbol2scm ("chords"))
- chords_together ();
- else if (tag == ly_symbol2scm ("apart")
- || tag == ly_symbol2scm ("apart-silence")
- || tag == ly_symbol2scm ("apart-spanner"))
- apart (tag == ly_symbol2scm ("apart-silence"));
- else if (tag == ly_symbol2scm ("unisono"))
- unisono (false);
- else if (tag == ly_symbol2scm ("unisilence"))
- unisono (true);
- else if (tag == ly_symbol2scm ("solo1"))
- solo1 ();
- else if (tag == ly_symbol2scm ("solo2"))
- solo2 ();
+ Context *outletsBefore[] = { first_iter_->get_outlet (),
+ second_iter_->get_outlet () };
+
+ if (scm_is_eq (tag, ly_symbol2scm ("chords")))
+ chords_together ();
+ else if (scm_is_eq (tag, ly_symbol2scm ("apart"))
+ || scm_is_eq (tag, ly_symbol2scm ("apart-silence"))
+ || scm_is_eq (tag, ly_symbol2scm ("apart-spanner")))
+ apart ();
+ else if (scm_is_eq (tag, ly_symbol2scm ("unisono")))
+ {
+ // Continue to use the most recently used part because we might have
+ // killed mmrests in the other part.
+ unisono (false, (chosen_part_ == 2) ? 2 : 1);
+ }
+ else if (scm_is_eq (tag, ly_symbol2scm ("unisilence")))
+ {
+ // as for unisono
+ unisono (true, (chosen_part_ == 2) ? 2 : 1);
+ }
+ else if (scm_is_eq (tag, ly_symbol2scm ("silence1")))
+ unisono (true, 1);
+ else if (scm_is_eq (tag, ly_symbol2scm ("silence2")))
+ unisono (true, 2);
+ else if (scm_is_eq (tag, ly_symbol2scm ("solo1")))
+ solo1 ();
+ else if (scm_is_eq (tag, ly_symbol2scm ("solo2")))
+ solo2 ();
else if (scm_is_symbol (tag))
- {
- string s = "Unknown split directive: "
- + (scm_is_symbol (tag) ? ly_symbol2string (tag) : string ("not a symbol"));
- programming_error (s);
- }
+ {
+ string s = "Unknown split directive: "
+ + (scm_is_symbol (tag) ? ly_symbol2string (tag) : string ("not a symbol"));
+ programming_error (s);
+ }
+
+ if ((first_iter_->get_outlet () != outletsBefore[0])
+ || (second_iter_->get_outlet () != outletsBefore[1]))
+ kill_mmrest_in_inactive_outlets ();
}
if (first_iter_->ok ())
- {
- if (try_process (first_iter_, m))
- last_playing_ = SOLO1;
- }
+ first_iter_->process (m);
if (second_iter_->ok ())
- {
- if (try_process (second_iter_, m))
- last_playing_ = SOLO2;
- }
+ second_iter_->process (m);
}
IMPLEMENT_CTOR_CALLBACK (Part_combine_iterator);
projects / lilypond.git / blobdiff