--- /dev/null
+/*
+ part-combine-music-iterator.cc -- implement Part_combine_music_iterator
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ */
+
+#include "part-combine-music.hh"
+#include "part-combine-music-iterator.hh"
+#include "translator-group.hh"
+#include "musical-request.hh"
+#include "warn.hh"
+
+Part_combine_music_iterator::Part_combine_music_iterator ()
+{
+ combined_b_ = false;
+
+ first_iter_p_ = 0;
+ second_iter_p_ = 0;
+}
+
+Part_combine_music_iterator::~Part_combine_music_iterator ()
+{
+ delete second_iter_p_;
+ delete first_iter_p_;
+}
+
+Moment
+Part_combine_music_iterator::next_moment () const
+{
+ Moment first_next = first_iter_p_->next_moment ();
+ Moment second_next = second_iter_p_->next_moment ();
+ return first_next <? second_next;
+}
+
+bool
+Part_combine_music_iterator::ok () const
+{
+ //hmm
+ return first_iter_p_->ok ();
+}
+
+void
+Part_combine_music_iterator::do_print () const
+{
+ first_iter_p_->print ();
+ second_iter_p_->print ();
+}
+
+void
+Part_combine_music_iterator::construct_children ()
+{
+ Part_combine_music const * m = dynamic_cast<Part_combine_music const*> (music_l_);
+
+ first_iter_p_ = get_iterator_p (m->first_l ());
+ second_iter_p_ = get_iterator_p (m->second_l ());
+}
+
+void
+Part_combine_music_iterator::change_to (Music_iterator *it, String to_type,
+ String to_id)
+{
+ Translator_group * current = it->report_to_l ();
+ Translator_group * last = 0;
+
+ /*
+ Cut & Paste from from Auto_change_iterator from Change_iterator (ugh).
+
+ TODO: abstract this function
+ */
+
+ /* find the type of translator that we're changing.
+
+ If \translator Staff = bass, then look for Staff = *
+ */
+ while (current && current->type_str_ != to_type)
+ {
+ last = current;
+ current = current->daddy_trans_l_;
+ }
+
+ if (current && current->id_str_ == to_id)
+ {
+ String msg;
+ msg += _ ("Can't switch translators, I'm there already");
+ }
+
+ if (current)
+ if (last)
+ {
+ Translator_group * dest =
+ it->report_to_l ()->find_create_translator_l (to_type, to_id);
+ current->remove_translator_p (last);
+ dest->add_translator (last);
+ }
+ else
+ {
+ /*
+ We could change the current translator's id, but that would make
+ errors hard to catch
+
+ last->translator_id_str_ = change_l ()->change_to_id_str_;
+ */
+ error (_f ("I'm one myself: `%s'", to_type.ch_C ()));
+ }
+ else
+ error (_f ("none of these in my family: `%s'", to_id.ch_C ()));
+}
+
+Pitch_interrogate_req* first_spanish_inquisition; // nobody expects it
+Pitch_interrogate_req* second_spanish_inquisition; // won't strike twice
+
+void
+Part_combine_music_iterator::do_process_and_next (Moment m)
+{
+ Moment first_next = first_iter_p_->next_moment ();
+ Moment second_next = second_iter_p_->next_moment ();
+
+#if 0
+ if (first_next > m || second_next > m)
+ return;
+#endif
+
+ /*
+ different rhythm for combined voices: separate
+ same rhythm for separated voices: combine
+ */
+ if ((first_next != second_next && combined_b_)
+ || (first_next == second_next && !combined_b_))
+ {
+ combined_b_ = !combined_b_;
+ String to_id = combined_b_ ? "first" : "second";
+
+ Part_combine_music const * p = dynamic_cast<Part_combine_music const* > (music_l_);
+
+ change_to (second_iter_p_, p->what_str_, to_id);
+
+ /*
+ A quick ugly hack to see if it works..
+ */
+#if 0
+ Translator_group * fd =
+ first_iter_p_->report_to_l ()->find_create_translator_l (p->what_str_,
+ "first");
+ Translator_group * sd =
+ second_iter_p_->report_to_l ()->find_create_translator_l (p->what_str_,
+ to_id);
+#else
+ Translator_group * fd = first_iter_p_->report_to_l ();
+ Translator_group * sd = second_iter_p_->report_to_l ();
+#endif
+
+ if (combined_b_)
+ {
+ fd->set_property ("verticalDirection", gh_int2scm (0));
+ fd->set_property ("noteHeadStyle", ly_symbol2scm ("default"));
+ }
+ else
+ {
+ fd->set_property ("verticalDirection", gh_int2scm (1));
+ fd->set_property ("noteHeadStyle", ly_symbol2scm ("diamond"));
+ sd->set_property ("verticalDirection", gh_int2scm (-1));
+ }
+ }
+
+ first_iter_p_->process_and_next (m);
+ second_iter_p_->process_and_next (m);
+
+ Music_iterator::do_process_and_next (m);
+
+
+#if 0
+
+ /*
+ TODO:
+
+ * when combining two threads: check pitches, request stem directions
+
+ * a2-engraver to put texts a2/Solo/SoloII as appropriate.
+
+ * maybe the a2-engraver should set the stem directions, iso us?
+
+
+ Maybe different modes exist?
+
+ * Wind instruments (Flute I/II)
+ * Hymnals:
+
+
+ Rules for Hymnals/SATB (John Henckel <henckel@iname.com>):
+
+ 1. if S and A differ by less than a third, the stems should be up/down.
+ 2. else if S and A have different values, the stems should be up/down.
+ 3. else if A sings "la" or higher, both S and A stems should be down.
+ 4. else both stems should be up
+
+ * This may get really tricky: combining voices/staffs: string instruments
+
+ */
+
+ if (!first_spanish_inquisition)
+ first_spanish_inquisition = new Pitch_interrogate_req;
+ Music_iterator* fit = first_iter_p_->try_music (first_spanish_inquisition);
+
+ if (!second_spanish_inquisition)
+ second_spanish_inquisition = new Pitch_interrogate_req;
+ Music_iterator* sit = second_iter_p_->try_music (second_spanish_inquisition);
+
+ if (fit && first_spanish_inquisition->pitch_arr_.size ())
+ {
+ Musical_pitch p = spanish_inquisition->pitch_arr_[0];
+ Direction s = Direction (sign(p.steps ()));
+ if (s != where_dir_)
+ {
+ where_dir_ = s;
+ String to_id = (s >= 0) ? "up" : "down";
+ Part_combine_music const * auto_mus = dynamic_cast<Part_combine_music const* > (music_l_);
+
+ change_to (it, auto_mus->what_str_, to_id);
+ }
+ }
+
+ first_spanish_inquisition->pitch_arr_.clear ();
+ second_spanish_inquisition->pitch_arr_.clear ();
+#endif
+}
+
+Music_iterator*
+Part_combine_music_iterator::try_music_in_children (Music *m) const
+{
+ Music_iterator * i = first_iter_p_->try_music (m);
+ if (i)
+ return i;
+ else
+ return second_iter_p_->try_music (m);
+}
+
--- /dev/null
+/*
+ part-combine-music.cc -- implement Part_combine_music
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
+
+ */
+
+#include "part-combine-music.hh"
+#include "musical-pitch.hh"
+
+Part_combine_music::Part_combine_music (String what, Music * f, Music * s)
+{
+ what_str_ = what;
+ set_mus_property ("first", f->self_scm ());
+ set_mus_property ("second", s->self_scm ());
+}
+
+
+void
+Part_combine_music::transpose (Musical_pitch p)
+{
+ first_l ()->transpose (p);
+ second_l () ->transpose (p);
+}
+
+void
+Part_combine_music::do_print () const
+{
+ first_l ()->print();
+ second_l () ->print ();
+}
+
+Moment
+Part_combine_music::length_mom () const
+{
+ return first_l ()->length_mom ();
+}
+
+Musical_pitch
+Part_combine_music::to_relative_octave (Musical_pitch p)
+{
+ p = first_l ()->to_relative_octave (p);
+ return second_l ()->to_relative_octave (p);
+}
+
+void
+Part_combine_music::compress (Moment m)
+{
+ first_l ()->compress (m);
+ second_l ()->compress (m);
+}
+
+Music*
+Part_combine_music::first_l () const
+{
+ return unsmob_music (get_mus_property ("first"));
+}
+
+Music*
+Part_combine_music::second_l () const
+{
+ return unsmob_music (get_mus_property ("second"));
+}
projects / lilypond.git / commitdiff