2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2000--2009 Jan Nieuwenhuizen <janneke@gnu.org>
6 Han-Wen Nienhuys <hanwen@xs4all.nl>
8 LilyPond is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 LilyPond is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
22 #include "engraver.hh"
23 #include "arpeggio.hh"
24 #include "pointer-group-interface.hh"
25 #include "side-position-interface.hh"
26 #include "staff-symbol-referencer.hh"
30 Make arpeggios that span multiple staves. Catch arpeggios, and span a
31 Span_arpeggio over them if we find more than two arpeggios.
33 class Span_arpeggio_engraver : public Engraver
36 TRANSLATOR_DECLARATIONS (Span_arpeggio_engraver);
37 DECLARE_ACKNOWLEDGER (arpeggio);
40 void process_acknowledged ();
41 void stop_translation_timestep ();
45 vector<Grob*> arpeggios_;
48 Span_arpeggio_engraver::Span_arpeggio_engraver ()
54 Span_arpeggio_engraver::acknowledge_arpeggio (Grob_info info)
56 if (info.origin_contexts (this).size ()) // huh? what's this test for?
57 arpeggios_.push_back (info.grob ());
61 Span_arpeggio_engraver::process_acknowledged ()
64 connectArpeggios is slightly brusque; we should really read a grob
65 property of the caught non-span arpeggios. That way, we can have
67 both non-connected and connected arps in one pianostaff.
70 if (!span_arpeggio_ && arpeggios_.size () > 1
71 && to_boolean (get_property ("connectArpeggios")))
73 span_arpeggio_ = make_item ("Arpeggio", SCM_EOL);
74 span_arpeggio_->set_property ("cross-staff", SCM_BOOL_T);
79 Span_arpeggio_engraver::stop_translation_timestep ()
84 we do this very late, to make sure we also catch `extra'
85 side-pos support like accidentals.
87 for (vsize j = 0; j < arpeggios_.size (); j++)
89 extract_grob_set (arpeggios_[j], "stems", stems);
90 for (vsize i = 0; i < stems.size (); i++)
91 Pointer_group_interface::add_grob (span_arpeggio_, ly_symbol2scm ("stems"),
94 extract_grob_set (arpeggios_[j], "side-support-elements", sses);
95 for (vsize i = 0; i < sses.size (); i++)
96 Pointer_group_interface::add_grob (span_arpeggio_, ly_symbol2scm ("side-support-elements"),
100 we can't kill the children, since we don't want to the
101 previous note to bump into the span arpeggio; so we make
103 arpeggios_[j]->set_property ("transparent", SCM_BOOL_T);
107 span_arpeggio_->set_parent (arpeggios_[0]->get_parent (Y_AXIS), Y_AXIS);
113 #include "translator.icc"
115 ADD_ACKNOWLEDGER (Span_arpeggio_engraver, arpeggio);
116 ADD_TRANSLATOR (Span_arpeggio_engraver,
118 "Make arpeggios that span multiple staves.",