/*
- mark-engraver.cc -- implement Metronome_mark_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1998--2011 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1998--2003 Jan Nieuwenhuizen <janneke@gnu.org>
+ 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 <ctype.h>
+#include <cctype>
+using namespace std;
-#include "bar-line.hh"
-#include "time-signature.hh"
#include "engraver.hh"
-#include "engraver-group-engraver.hh"
+
+#include "context.hh"
+#include "duration.hh"
+#include "grob-array.hh"
#include "item.hh"
+#include "music.hh"
+#include "stream-event.hh"
+#include "text-interface.hh"
+
+#include "translator.icc"
-/**
- put stuff over or next to bars. Examples: bar numbers, marginal notes,
- rehearsal marks.
- */
class Metronome_mark_engraver : public Engraver
{
+ Item *text_;
+ Grob *support_;
+ Grob *bar_;
+ Stream_event *tempo_ev_;
+
public:
- TRANSLATOR_DECLARATIONS(Metronome_mark_engraver);
-protected:
- Item* text_;
- Grob * bar_line_;
-
+ TRANSLATOR_DECLARATIONS (Metronome_mark_engraver);
+
protected:
- virtual void stop_translation_timestep ();
- virtual void acknowledge_grob (Grob_info);
- void create_items (Music*);
- virtual bool try_music (Music *req);
- virtual void start_translation_timestep ();
- virtual void process_music ();
-
-private:
- Music * mark_req_;
+ void stop_translation_timestep ();
+ void process_music ();
+
+ DECLARE_ACKNOWLEDGER (break_aligned);
+ DECLARE_ACKNOWLEDGER (break_alignment);
+ DECLARE_ACKNOWLEDGER (grob);
+
+ DECLARE_TRANSLATOR_LISTENER (tempo_change);
};
Metronome_mark_engraver::Metronome_mark_engraver ()
{
- text_ =0;
- mark_req_ = 0;
+ text_ = 0;
+ support_ = 0;
+ bar_ = 0;
+ tempo_ev_ = 0;
}
+IMPLEMENT_TRANSLATOR_LISTENER (Metronome_mark_engraver, tempo_change);
void
-Metronome_mark_engraver::acknowledge_grob (Grob_info inf)
+Metronome_mark_engraver::listen_tempo_change (Stream_event *ev)
{
- if (Bar_line::has_interface (inf.grob_))
- {
- bar_line_ = inf.grob_;
- }
- else if (text_ && Time_signature::has_interface (inf.grob_))
- {
- text_->set_parent (inf.grob_, X_AXIS);
- }
+ ASSIGN_EVENT_ONCE (tempo_ev_, ev);
}
-void
-Metronome_mark_engraver::stop_translation_timestep ()
+static bool
+safe_is_member (SCM scm, SCM lst)
{
- if (text_)
+ return scm_list_p (lst) == SCM_BOOL_T
+ && scm_member (scm, lst) != SCM_BOOL_F;
+}
+
+void
+Metronome_mark_engraver::acknowledge_break_aligned (Grob_info info)
+{
+ Grob *g = info.grob ();
+
+ if (text_
+ && g->get_property ("break-align-symbol")
+ == ly_symbol2scm ("staff-bar"))
+ bar_ = g;
+ else if (text_
+ && !support_
+ && safe_is_member (g->get_property ("break-align-symbol"),
+ text_->get_property ("break-align-symbols"))
+ && Item::break_visible (g))
{
- if (bar_line_ && !text_->get_parent (X_AXIS))
- text_->set_parent (bar_line_, X_AXIS);
-
- text_->set_grob_property ("side-support-elements" , get_property ("stavesFound"));
- typeset_grob (text_);
- text_ =0;
+ support_ = g;
+ text_->set_parent (g, X_AXIS);
}
- mark_req_ = 0;
+ if (bar_ || support_)
+ text_->set_property ("non-musical", SCM_BOOL_T);
}
-
void
-Metronome_mark_engraver::create_items (Music *rq)
+Metronome_mark_engraver::acknowledge_break_alignment (Grob_info info)
{
- if (text_)
- return;
+ Grob *g = info.grob ();
- SCM s = get_property ("MetronomeMark");
- text_ = new Item (s);
-
- announce_grob(text_, rq->self_scm());
+ if (text_
+ && support_
+ && dynamic_cast<Item *> (g))
+ text_->set_parent (g, X_AXIS);
}
+void
+Metronome_mark_engraver::acknowledge_grob (Grob_info info)
+{
+ Grob *g = info.grob ();
+
+ if (text_)
+ for (SCM s = text_->get_property ("non-break-align-symbols");
+ scm_is_pair (s);
+ s = scm_cdr (s))
+ if (g->internal_has_interface (scm_car (s)))
+ text_->set_parent (g, X_AXIS);
+}
-bool
-Metronome_mark_engraver::try_music (Music* r)
+void
+Metronome_mark_engraver::stop_translation_timestep ()
{
- mark_req_ = r;
- return true;
+ if (text_)
+ {
+ if (text_->get_parent (X_AXIS)
+ && text_->get_parent (X_AXIS)->internal_has_interface (ly_symbol2scm ("multi-measure-rest-interface"))
+ && bar_)
+ text_->set_parent (bar_, X_AXIS);
+ else if (!support_)
+ {
+ /*
+ Gardner Read "Music Notation", p.278
+
+ Align the metronome mark over the time signature (or the
+ first notational element of the measure if no time
+ signature is present in that measure).
+ */
+ if (Grob *mc = unsmob_grob (get_property ("currentMusicalColumn")))
+ text_->set_parent (mc, X_AXIS);
+ else if (Grob *cc = unsmob_grob (get_property ("currentCommandColumn")))
+ text_->set_parent (cc, X_AXIS);
+ }
+ text_->set_object ("side-support-elements",
+ grob_list_to_grob_array (get_property ("stavesFound")));
+ text_ = 0;
+ support_ = 0;
+ bar_ = 0;
+ tempo_ev_ = 0;
+ }
}
void
Metronome_mark_engraver::process_music ()
{
- if (mark_req_)
+ if (tempo_ev_)
{
- create_items (mark_req_);
+ text_ = make_item ("MetronomeMark", tempo_ev_->self_scm ());
SCM proc = get_property ("metronomeMarkFormatter");
- SCM result= scm_call_2 (proc, mark_req_->self_scm (),
- daddy_trans_->self_scm());
-
- text_->set_grob_property ("text", result);
+ SCM result = scm_call_2 (proc,
+ tempo_ev_->self_scm (),
+ context ()->self_scm ());
+
+ text_->set_property ("text", result);
}
}
-ENTER_DESCRIPTION(Metronome_mark_engraver,
-/* descr */ "Engrave metro nome marking. This delegates the real work to the function in the metronomeMarkFormatter property",
-/* creats*/ "MetronomeMark",
-/* accepts */ "metronome-change-event",
-/* acks */ "time-signature-interface bar-line-interface",
-/* reads */ "stavesFound metronomeMarkFormatter",
-/* write */ "");
+ADD_ACKNOWLEDGER (Metronome_mark_engraver, break_aligned);
+ADD_ACKNOWLEDGER (Metronome_mark_engraver, break_alignment);
+ADD_ACKNOWLEDGER (Metronome_mark_engraver, grob);
+
+ADD_TRANSLATOR (Metronome_mark_engraver,
+ /* doc */
+ "Engrave metronome marking. This delegates the formatting"
+ " work to the function in the @code{metronomeMarkFormatter}"
+ " property. The mark is put over all staves. The staves are"
+ " taken from the @code{stavesFound} property, which is"
+ " maintained by @ref{Staff_collecting_engraver}.",
+
+ /* create */
+ "MetronomeMark ",
+
+ /* read */
+ "currentCommandColumn "
+ "currentMusicalColumn "
+ "metronomeMarkFormatter "
+ "stavesFound "
+ "tempoHideNote ",
+
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff