X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fsimultaneous-music-iterator.cc;h=3b891e8e79f1e978f6ab82ded8ff45f9e37a4bb2;hb=41b461e0a3dbe39d20e8198f284dea6775e14e0d;hp=12e0b16c68f419dfb76101cd9043f215d44d0b70;hpb=94189ec2b8da6d7e89dc619c646a927adead9b19;p=lilypond.git diff --git a/lily/simultaneous-music-iterator.cc b/lily/simultaneous-music-iterator.cc index 12e0b16c68..3b891e8e79 100644 --- a/lily/simultaneous-music-iterator.cc +++ b/lily/simultaneous-music-iterator.cc @@ -1,147 +1,154 @@ /* - Simultaneous_music-iterator.cc -- implement Simultaneous_music_iterator + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 1997--2012 Han-Wen Nienhuys - (c) 1997--2001 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 . */ -#include "translator-group.hh" -#include "debug.hh" #include "simultaneous-music-iterator.hh" -#include "music-list.hh" -#include "killing-cons.tcc" +#include "music.hh" +#include "context.hh" +#include "warn.hh" +#include "context-def.hh" Simultaneous_music_iterator::Simultaneous_music_iterator () { - separate_contexts_b_ = false; -} - -Simultaneous_music_iterator::Simultaneous_music_iterator (Simultaneous_music_iterator const& src) - : Music_iterator (src) -{ - separate_contexts_b_ = src.separate_contexts_b_; - for (Cons *p = src.children_p_list_.head_; p; p = p->next_) - { - Music_iterator *i = p->car_; - children_p_list_.append (new Killing_cons (i->clone (), 0)); - } + create_separate_contexts_ = false; + children_list_ = SCM_EOL; } -Simultaneous_music_iterator::~Simultaneous_music_iterator () +void +Simultaneous_music_iterator::derived_mark () const { - children_p_list_.junk (); + scm_gc_mark (children_list_); } -SCM -Simultaneous_music_iterator::get_music (Moment m)const +void +Simultaneous_music_iterator::derived_substitute (Context *f, Context *t) { - SCM s = SCM_EOL; - for (Cons *p = children_p_list_.head_; p; p = p->next_) - { - s = gh_append2 (p->car_->get_music (m), s); - } - return s; + for (SCM s = children_list_; scm_is_pair (s); s = scm_cdr (s)) + unsmob_iterator (scm_car (s))->substitute_outlet (f, t); } void -Simultaneous_music_iterator::construct_children() +Simultaneous_music_iterator::construct_children () { int j = 0; - Music_sequence const *sim = dynamic_cast (music_l_); - SCM i = sim->music_list (); - for (; gh_pair_p(i); i = gh_cdr(i), j++) + SCM i = get_music ()->get_property ("elements"); + + children_list_ = SCM_EOL; + SCM *tail = &children_list_; + for (; scm_is_pair (i); i = scm_cdr (i), j++) { - Music *mus = unsmob_music (gh_car (i)); - Music_iterator * mi = static_get_iterator_p (mus); + Music *mus = unsmob_music (scm_car (i)); - /* if separate_contexts_b_ is set, create a new context with the - number number as name */ - - Translator_group * t = (j && separate_contexts_b_) - ? report_to_l ()->find_create_translator_l (report_to_l()->type_str_, - to_str (j)) - : report_to_l (); + SCM scm_iter = get_static_get_iterator (mus); + Music_iterator *mi = unsmob_iterator (scm_iter); - if (!t) - t = report_to_l (); + /* if create_separate_contexts_ is set, create a new context with the + number number as name */ - mi->init_translator (mus, t); - mi->construct_children (); - - if (mi->ok()) - { - children_p_list_.append (new Killing_cons (mi,0)); - } - else - delete mi; - } -} + SCM name = ly_symbol2scm (get_outlet ()->context_name ().c_str ()); + Context *c = (j && create_separate_contexts_) + ? get_outlet ()->find_create_context (name, to_string (j), SCM_EOL) + : get_outlet (); + if (!c) + c = get_outlet (); -void -Simultaneous_music_iterator::process (Moment until) -{ - for (Cons **pp = &children_p_list_.head_; *pp;) - { - Music_iterator * i = (*pp)->car_; - if (i->pending_moment() == until) - { - i->process (until); - } - if (!i->ok()) - delete children_p_list_.remove_cons (pp); + mi->init_context (mus, c); + mi->construct_children (); + + if (mi->ok ()) + { + *tail = scm_cons (scm_iter, *tail); + tail = SCM_CDRLOC (*tail); + } else - pp = &(*pp)->next_; + mi->quit (); } } void -Simultaneous_music_iterator::skip (Moment until) +Simultaneous_music_iterator::process (Moment until) { - for (Cons **pp = &children_p_list_.head_; *pp;) + SCM *proc = &children_list_; + while (scm_is_pair (*proc)) { - Music_iterator * i = (*pp)->car_; - if (i->pending_moment() <= until) - { - i->skip (until); - } - if (!i->ok()) - delete children_p_list_.remove_cons (pp); + Music_iterator *i = unsmob_iterator (scm_car (*proc)); + if (i->run_always () + || i->pending_moment () == until) + i->process (until); + if (!i->ok ()) + { + i->quit (); + *proc = scm_cdr (*proc); + } else - pp = &(*pp)->next_; + proc = SCM_CDRLOC (*proc); } } Moment -Simultaneous_music_iterator::pending_moment() const +Simultaneous_music_iterator::pending_moment () const { Moment next; next.set_infinite (1); - - for (Cons *p = children_p_list_.head_; p; p = p->next_) - next = next car_->pending_moment() ; - return next; -} + for (SCM s = children_list_; scm_is_pair (s); s = scm_cdr (s)) + { + Music_iterator *it = unsmob_iterator (scm_car (s)); + next = min (next, it->pending_moment ()); + } + return next; +} bool -Simultaneous_music_iterator::ok() const +Simultaneous_music_iterator::ok () const { - return children_p_list_.head_; + bool run_always_ok = false; + for (SCM s = children_list_; scm_is_pair (s); s = scm_cdr (s)) + { + Music_iterator *it = unsmob_iterator (scm_car (s)); + if (!it->run_always ()) + return true; + else + run_always_ok = run_always_ok || it->ok (); + } + return run_always_ok; } -Music_iterator* -Simultaneous_music_iterator::try_music_in_children (Music *m) const +bool +Simultaneous_music_iterator::run_always () const { - Music_iterator * b=0; - for (Cons *p = children_p_list_.head_; !b && p; p = p->next_) - b =p->car_->try_music (m); - return b; + for (SCM s = children_list_; scm_is_pair (s); s = scm_cdr (s)) + { + Music_iterator *it = unsmob_iterator (scm_car (s)); + if (it->run_always ()) + return true; + } + return false; } +void +Simultaneous_music_iterator::do_quit () +{ + for (SCM s = children_list_; scm_is_pair (s); s = scm_cdr (s)) + unsmob_iterator (scm_car (s))->quit (); +} - -IMPLEMENT_CTOR_CALLBACK(Simultaneous_music_iterator); +IMPLEMENT_CTOR_CALLBACK (Simultaneous_music_iterator);