/*
- part-combine-engraver.cc -- implement PC-engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
-
- (c) 2000--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+ Copyright (C) 2000--2015 Jan Nieuwenhuizen <janneke@gnu.org>
Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+ 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 "engraver.hh"
-#include "multi-measure-rest.hh"
#include "note-head.hh"
#include "side-position-interface.hh"
#include "stem.hh"
#include "stream-event.hh"
#include "text-interface.hh"
+#include "item.hh"
#include "translator.icc"
TRANSLATOR_DECLARATIONS (Part_combine_engraver);
protected:
- DECLARE_ACKNOWLEDGER (note_head);
- DECLARE_ACKNOWLEDGER (stem);
+ void acknowledge_note_head (Grob_info);
+ void acknowledge_stem (Grob_info);
- DECLARE_TRANSLATOR_LISTENER (part_combine);
+ void listen_part_combine (Stream_event *);
+ void listen_note (Stream_event *);
void process_music ();
void stop_translation_timestep ();
+ void create_item (Stream_event *ev);
+
private:
Item *text_;
- Stream_event *event_;
+ Stream_event *new_event_; // Event happened at this moment
+ bool note_found_;
+ // Event possibly from an earlier moment waiting to create a text:
+ Stream_event *waiting_event_;
};
-IMPLEMENT_TRANSLATOR_LISTENER (Part_combine_engraver, part_combine);
void
Part_combine_engraver::listen_part_combine (Stream_event *ev)
{
- ASSIGN_EVENT_ONCE (event_, ev);
+ ASSIGN_EVENT_ONCE (new_event_, ev);
+ // If two events occur at the same moment, discard the second as the
+ // warning indicates:
+ waiting_event_ = new_event_;
}
-Part_combine_engraver::Part_combine_engraver ()
+void
+Part_combine_engraver::listen_note (Stream_event *)
+{
+ note_found_ = true;
+}
+
+Part_combine_engraver::Part_combine_engraver (Context *c)
+ : Engraver (c)
{
text_ = 0;
- event_ = 0;
+ new_event_ = 0;
+ waiting_event_ = 0;
+ note_found_ = false;
+}
+
+void
+Part_combine_engraver::create_item (Stream_event *ev)
+{
+ SCM what = scm_car (ev->get_property ("class"));
+ SCM text = SCM_EOL;
+ if (scm_is_eq (what, ly_symbol2scm ("solo-one-event")))
+ text = get_property ("soloText");
+ else if (scm_is_eq (what, ly_symbol2scm ("solo-two-event")))
+ text = get_property ("soloIIText");
+ else if (scm_is_eq (what, ly_symbol2scm ("unisono-event")))
+ text = get_property ("aDueText");
+
+ if (Text_interface::is_markup (text))
+ {
+ text_ = make_item ("CombineTextScript", ev->self_scm ());
+ text_->set_property ("text", text);
+ }
}
void
Part_combine_engraver::process_music ()
{
- if (event_
+ if (waiting_event_
&& to_boolean (get_property ("printPartCombineTexts")))
{
- SCM what = event_->get_property ("class");
- SCM text = SCM_EOL;
- if (what == ly_symbol2scm ("solo-one-event"))
- text = get_property ("soloText");
- else if (what == ly_symbol2scm ("solo-two-event"))
- text = get_property ("soloIIText");
- else if (what == ly_symbol2scm ("unisono-event"))
- text = get_property ("aDueText");
-
- if (Text_interface::is_markup (text))
- {
- text_ = make_item ("CombineTextScript", event_->self_scm ());
- text_->set_property ("text", text);
- }
+ if (note_found_ || !to_boolean (get_property ("partCombineTextsOnNote")))
+ {
+ create_item (waiting_event_);
+ waiting_event_ = 0;
+ }
}
}
Grob *t = text_;
Side_position_interface::add_support (t, i.grob ());
if (Side_position_interface::get_axis (t) == X_AXIS
- && !t->get_parent (Y_AXIS))
- t->set_parent (i.grob (), Y_AXIS);
+ && !t->get_parent (Y_AXIS))
+ t->set_parent (i.grob (), Y_AXIS);
}
}
Part_combine_engraver::stop_translation_timestep ()
{
text_ = 0;
- event_ = 0;
+ new_event_ = 0;
+ note_found_ = false;
+}
+
+void
+Part_combine_engraver::boot ()
+{
+ ADD_LISTENER (Part_combine_engraver, part_combine);
+ ADD_LISTENER (Part_combine_engraver, note);
+ ADD_ACKNOWLEDGER (Part_combine_engraver, note_head);
+ ADD_ACKNOWLEDGER (Part_combine_engraver, stem);
}
-ADD_ACKNOWLEDGER (Part_combine_engraver, note_head);
-ADD_ACKNOWLEDGER (Part_combine_engraver, stem);
ADD_TRANSLATOR (Part_combine_engraver,
- /* doc */ "Part combine engraver for orchestral scores: "
- "Print markings a2, Solo, Solo II, and unisono ",
- /* create */ "CombineTextScript",
- /* accept */ "part-combine-event",
- /* read */ "printPartCombineTexts soloText soloIIText "
- "aDueText",
- /* write */ "");
+ /* doc */
+ "Part combine engraver for orchestral scores: Print markings"
+ " @q{a2}, @q{Solo}, @q{Solo II}, and @q{unisono}.",
+
+ /* create */
+ "CombineTextScript ",
+
+ /* read */
+ "printPartCombineTexts "
+ "partCombineTextsOnNote "
+ "soloText "
+ "soloIIText "
+ "aDueText ",
+
+ /* write */
+ ""
+ );