-/*
- spacing-engraver.cc -- implement Spacing_engraver
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-
-#include "musical-request.hh"
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 1999--2015 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 "moment.hh"
+#include "note-spacing.hh"
#include "paper-column.hh"
-#include "spacing-engraver.hh"
-#include "spacing-spanner.hh"
+#include "pointer-group-interface.hh"
+#include "pqueue.hh"
+#include "spanner.hh"
+#include "staff-spacing.hh"
+#include "stream-event.hh"
+
+#include "translator.icc"
+
+struct Rhythmic_tuple
+{
+ Grob_info info_;
+ Moment end_;
+
+ Rhythmic_tuple ()
+ {
+ }
+ Rhythmic_tuple (Grob_info i, Moment m)
+ {
+ info_ = i;
+ end_ = m;
+ }
+ static int time_compare (Rhythmic_tuple const &, Rhythmic_tuple const &);
+};
inline int
compare (Rhythmic_tuple const &a, Rhythmic_tuple const &b)
{
- return Rhythmic_tuple::time_compare (a,b);
+ return Rhythmic_tuple::time_compare (a, b);
}
int
Rhythmic_tuple::time_compare (Rhythmic_tuple const &h1,
- Rhythmic_tuple const &h2)
+ Rhythmic_tuple const &h2)
+{
+ return (h1.end_ - h2.end_).main_part_.sign ();
+}
+
+/****************************************************************/
+
+/*
+ Acknowledge rhythmic elements, for initializing spacing fields in
+ the columns.
+*/
+class Spacing_engraver : public Engraver
+{
+ PQueue<Rhythmic_tuple> playing_durations_;
+ vector<Rhythmic_tuple> now_durations_;
+ vector<Rhythmic_tuple> stopped_durations_;
+ Moment now_;
+ Spanner *spacing_;
+ Stream_event *start_section_;
+
+ TRANSLATOR_DECLARATIONS (Spacing_engraver);
+
+protected:
+ void acknowledge_staff_spacing (Grob_info);
+ void acknowledge_note_spacing (Grob_info);
+ void acknowledge_rhythmic_head (Grob_info);
+ void acknowledge_rhythmic_grob (Grob_info);
+ void listen_spacing_section (Stream_event *);
+
+ void start_translation_timestep ();
+ void stop_translation_timestep ();
+ void process_music ();
+ void add_starter_duration (Grob_info i);
+
+ virtual void finalize ();
+
+ void start_spanner ();
+ void stop_spanner ();
+};
+
+Spacing_engraver::Spacing_engraver (Context *c)
+ : Engraver (c)
{
-
- return (h1.end_ - h2.end_ ).sign ();
+ spacing_ = 0;
+ start_section_ = 0;
}
-Spacing_engraver::Spacing_engraver()
+void
+Spacing_engraver::listen_spacing_section (Stream_event *ev)
{
- spacing_p_ = 0;
+ ASSIGN_EVENT_ONCE (start_section_, ev);
}
void
-Spacing_engraver::do_creation_processing ()
+Spacing_engraver::process_music ()
{
- spacing_p_ =new Spacing_spanner (SCM_EOL);
- spacing_p_->set_bound (LEFT, unsmob_element (get_property ("currentCommandColumn")));
- announce_element (Score_element_info (spacing_p_, 0));
+ if (start_section_ && spacing_)
+ stop_spanner ();
+
+ if (!spacing_)
+ start_spanner ();
}
void
-Spacing_engraver::do_removal_processing ()
+Spacing_engraver::start_spanner ()
{
- Score_element * p = unsmob_element (get_property ("currentCommandColumn"));
- spacing_p_->set_bound (RIGHT, p);
- typeset_element (spacing_p_);
- spacing_p_ =0;
+ assert (!spacing_);
+
+ spacing_ = make_spanner ("SpacingSpanner", SCM_EOL);
+ spacing_->set_bound (LEFT,
+ unsmob<Grob> (get_property ("currentCommandColumn")));
}
void
-Spacing_engraver::acknowledge_element (Score_element_info i)
+Spacing_engraver::finalize ()
{
- if (to_boolean (i.elem_l_->get_elt_property ("grace")))
- return;
+ stop_spanner ();
+}
+
+void
+Spacing_engraver::stop_spanner ()
+{
+ if (spacing_)
+ {
+ Grob *p = unsmob<Grob> (get_property ("currentCommandColumn"));
+
+ spacing_->set_bound (RIGHT, p);
+ spacing_ = 0;
+ }
+}
+
+void
+Spacing_engraver::acknowledge_note_spacing (Grob_info i)
+{
+ Pointer_group_interface::add_grob (spacing_, ly_symbol2scm ("wishes"), i.grob ());
+}
- if (to_boolean (i.elem_l_->get_elt_property ("non-rhythmic")))
+void
+Spacing_engraver::acknowledge_staff_spacing (Grob_info i)
+{
+ Pointer_group_interface::add_grob (spacing_, ly_symbol2scm ("wishes"), i.grob ());
+}
+
+void
+Spacing_engraver::acknowledge_rhythmic_grob (Grob_info i)
+{
+ add_starter_duration (i);
+}
+
+void
+Spacing_engraver::acknowledge_rhythmic_head (Grob_info i)
+{
+ add_starter_duration (i);
+}
+
+void
+Spacing_engraver::add_starter_duration (Grob_info i)
+{
+ if (i.grob ()->internal_has_interface (ly_symbol2scm ("lyric-syllable-interface"))
+ || i.grob ()->internal_has_interface (ly_symbol2scm ("multi-measure-interface")))
return;
-
- if (Rhythmic_req * r = dynamic_cast<Rhythmic_req*>(i.req_l_))
+
+ /*
+ only pay attention to durations that are not grace notes.
+ */
+ if (!now_.grace_part_)
{
- Rhythmic_tuple t(i, now_mom () + r->length_mom ());
- now_durations_.push (t);
+ Stream_event *r = i.event_cause ();
+ if (r && r->in_event_class ("rhythmic-event"))
+ {
+ Moment len = get_event_length (r, now_);
+ Rhythmic_tuple t (i, now_mom () + len);
+ now_durations_.push_back (t);
+ }
}
}
void
-Spacing_engraver::do_pre_move_processing ()
+Spacing_engraver::stop_translation_timestep ()
{
+ Paper_column *musical_column
+ = unsmob<Paper_column> (get_property ("currentMusicalColumn"));
+
+ if (!spacing_)
+ start_spanner ();
+
+ musical_column->set_object ("spacing", spacing_->self_scm ());
+ unsmob<Grob> (get_property ("currentCommandColumn"))
+ ->set_object ("spacing", spacing_->self_scm ());
+
+ SCM proportional = get_property ("proportionalNotationDuration");
+ if (unsmob<Moment> (proportional))
+ {
+ musical_column->set_property ("shortest-playing-duration", proportional);
+ musical_column->set_property ("shortest-starter-duration", proportional);
+ musical_column->set_property ("used", SCM_BOOL_T);
+ return;
+ }
+
Moment shortest_playing;
shortest_playing.set_infinite (1);
- for (int i=0; i < playing_durations_.size (); i++)
+ for (vsize i = 0; i < playing_durations_.size (); i++)
{
- Moment m = (playing_durations_[i].info_.req_l_)->length_mom ();
- if (m)
- {
- shortest_playing = shortest_playing <? m;
- }
+ Stream_event *ev = playing_durations_[i].info_.event_cause ();
+ if (ev)
+ {
+ Moment m = get_event_length (ev);
+ shortest_playing = min (shortest_playing, m);
+ }
}
-
- Moment starter, inf;
- inf.set_infinite (1);
- starter=inf;
- for (int i=0; i < now_durations_.size (); i++)
- {
- Moment m = now_durations_[i].info_.req_l_->length_mom ();
- if (m)
- starter = starter <? m;
+ Moment starter;
+ starter.set_infinite (1);
- playing_durations_.insert (now_durations_[i]);
+ for (vsize i = 0; i < now_durations_.size (); i++)
+ {
+ Moment m = get_event_length (now_durations_[i].info_.event_cause ());
+ if (m.to_bool ())
+ {
+ starter = min (starter, m);
+ playing_durations_.insert (now_durations_[i]);
+ }
}
now_durations_.clear ();
-
- shortest_playing = shortest_playing <? starter;
-
- Paper_column * sc
- = dynamic_cast<Paper_column*> (unsmob_element (get_property ("currentMusicalColumn")));
- SCM sh = smobify (new Moment (shortest_playing));
- SCM st = smobify (new Moment (starter));
+ shortest_playing = min (shortest_playing, starter);
+
+ assert (starter.to_bool ());
+ SCM sh = shortest_playing.smobbed_copy ();
+ SCM st = starter.smobbed_copy ();
- sc->set_elt_property ("shortest-playing-duration", sh);
- sc->set_elt_property ("shortest-starter-duration", st);
+ musical_column->set_property ("shortest-playing-duration", sh);
+ musical_column->set_property ("shortest-starter-duration", st);
}
void
-Spacing_engraver::do_post_move_processing ()
+Spacing_engraver::start_translation_timestep ()
{
- Moment now = now_mom ();
+ start_section_ = 0;
+
+ now_ = now_mom ();
stopped_durations_.clear ();
- while (playing_durations_.size () && playing_durations_.front ().end_ < now)
+
+ while (playing_durations_.size () && playing_durations_.front ().end_ < now_)
playing_durations_.delmin ();
- while (playing_durations_.size () && playing_durations_.front ().end_ == now)
- stopped_durations_.push (playing_durations_.get ());
+ while (playing_durations_.size () && playing_durations_.front ().end_ == now_)
+ stopped_durations_.push_back (playing_durations_.get ());
+}
+
+
+void
+Spacing_engraver::boot ()
+{
+ ADD_LISTENER (Spacing_engraver, spacing_section);
+ ADD_ACKNOWLEDGER (Spacing_engraver, staff_spacing);
+ ADD_ACKNOWLEDGER (Spacing_engraver, note_spacing);
+ ADD_ACKNOWLEDGER (Spacing_engraver, rhythmic_head);
+ ADD_ACKNOWLEDGER (Spacing_engraver, rhythmic_grob);
}
-ADD_THIS_TRANSLATOR(Spacing_engraver);
+ADD_TRANSLATOR (Spacing_engraver,
+ /* doc */
+ "Make a @code{SpacingSpanner} and do bookkeeping of shortest"
+ " starting and playing notes.",
+
+ /* create */
+ "SpacingSpanner ",
+ /* read */
+ "currentMusicalColumn "
+ "currentCommandColumn "
+ "proportionalNotationDuration ",
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff