-/*
- spacing-engraver.cc -- implement Spacing_engraver
-
+/*
+ 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"
-#include "paper-column.hh"
+ (c) 1999--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
-#include "spacing-spanner.hh"
#include "engraver.hh"
+#include "moment.hh"
+#include "note-spacing.hh"
+#include "paper-column.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
{
- Score_element_info info_;
+ Grob_info info_;
Moment end_;
-
+
Rhythmic_tuple ()
- {
- }
- Rhythmic_tuple (Score_element_info i, Moment m )
- {
- info_ = i;
- end_ = m;
- }
- static int time_compare (Rhythmic_tuple const &, Rhythmic_tuple const &);
+ {
+ }
+ Rhythmic_tuple (Grob_info i, Moment m)
+ {
+ info_ = i;
+ end_ = m;
+ }
+ static int time_compare (Rhythmic_tuple const &, Rhythmic_tuple const &);
};
-/**
- Acknowledge rhythmic elements, for initializing spacing fields in
- the columns.
+inline int
+compare (Rhythmic_tuple const &a, Rhythmic_tuple const &b)
+{
+ return Rhythmic_tuple::time_compare (a, b);
+}
- should be the last one of the toplevel context
+int
+Rhythmic_tuple::time_compare (Rhythmic_tuple const &h1,
+ 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_;
- Array<Rhythmic_tuple> now_durations_;
- Array<Rhythmic_tuple> stopped_durations_;
+ vector<Rhythmic_tuple> now_durations_;
+ vector<Rhythmic_tuple> stopped_durations_;
+ Moment now_;
+ Spanner *spacing_;
+ Stream_event *start_section_;
+
+ TRANSLATOR_DECLARATIONS (Spacing_engraver);
- Spanner * spacing_p_;
protected:
- VIRTUAL_COPY_CONS(Translator);
- virtual void acknowledge_element (Score_element_info);
- virtual void do_post_move_processing ();
- virtual void do_pre_move_processing ();
- virtual void do_creation_processing ();
- virtual void do_removal_processing ();
-public:
- Spacing_engraver ();
+ DECLARE_ACKNOWLEDGER (staff_spacing);
+ DECLARE_ACKNOWLEDGER (note_spacing);
+ DECLARE_ACKNOWLEDGER (rhythmic_head);
+ DECLARE_TRANSLATOR_LISTENER (spacing_section);
+
+ void start_translation_timestep ();
+ void stop_translation_timestep ();
+ void process_music ();
+
+ virtual void finalize ();
+
+ void start_spanner ();
+ void stop_spanner ();
};
-inline int
-compare (Rhythmic_tuple const &a, Rhythmic_tuple const &b)
+Spacing_engraver::Spacing_engraver ()
{
- return Rhythmic_tuple::time_compare (a,b);
+ spacing_ = 0;
+ start_section_ = 0;
}
-int
-Rhythmic_tuple::time_compare (Rhythmic_tuple const &h1,
- Rhythmic_tuple const &h2)
+IMPLEMENT_TRANSLATOR_LISTENER (Spacing_engraver, spacing_section);
+void
+Spacing_engraver::listen_spacing_section (Stream_event *ev)
{
- return (h1.end_ - h2.end_ ).sign ();
+ ASSIGN_EVENT_ONCE (start_section_, ev);
}
-Spacing_engraver::Spacing_engraver()
+void
+Spacing_engraver::process_music ()
{
- spacing_p_ = 0;
+ if (start_section_ && spacing_)
+ stop_spanner ();
+
+ if (!spacing_)
+ start_spanner ();
}
void
-Spacing_engraver::do_creation_processing ()
+Spacing_engraver::start_spanner ()
{
- spacing_p_ =new Spanner (get_property ("SpacingSpanner"));
- Spacing_spanner::set_interface (spacing_p_);
- spacing_p_->set_bound (LEFT, unsmob_element (get_property ("currentCommandColumn")));
- announce_element (spacing_p_, 0);
+ assert (!spacing_);
+
+
+ spacing_ = make_spanner ("SpacingSpanner", SCM_EOL);
+ spacing_->set_bound (LEFT,
+ unsmob_grob (get_property ("currentCommandColumn")));
}
void
-Spacing_engraver::do_removal_processing ()
+Spacing_engraver::finalize ()
{
- Score_element * p = unsmob_element (get_property ("currentCommandColumn"));
- spacing_p_->set_bound (RIGHT, p);
- typeset_element (spacing_p_);
- spacing_p_ =0;
+ stop_spanner ();
}
void
-Spacing_engraver::acknowledge_element (Score_element_info i)
+Spacing_engraver::stop_spanner ()
{
- if (to_boolean (i.elem_l_->get_elt_property ("grace")))
- return;
+ if (spacing_)
+ {
+ Grob *p = unsmob_grob (get_property ("currentCommandColumn"));
+
+ spacing_->set_bound (RIGHT, p);
+ spacing_ = 0;
+ }
+}
- if (to_boolean (i.elem_l_->get_elt_property ("non-rhythmic")))
+void
+Spacing_engraver::acknowledge_note_spacing (Grob_info i)
+{
+ Pointer_group_interface::add_grob (spacing_, ly_symbol2scm ("wishes"), i.grob ());
+}
+
+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_head (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);
+ 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
+ = dynamic_cast<Paper_column *> (unsmob_grob (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);
+ 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)
+ Stream_event *ev = playing_durations_[i].info_.event_cause ();
+ if (ev)
{
- shortest_playing = shortest_playing <? m;
+ 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 = shortest_playing.make_scm( );
- SCM st = starter.make_scm();
+ 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 ());
}
-ADD_THIS_TRANSLATOR(Spacing_engraver);
+ADD_ACKNOWLEDGER (Spacing_engraver, staff_spacing);
+ADD_ACKNOWLEDGER (Spacing_engraver, note_spacing);
+ADD_ACKNOWLEDGER (Spacing_engraver, rhythmic_head);
+ADD_TRANSLATOR (Spacing_engraver,
+ "make a SpacingSpanner and do "
+ "bookkeeping of shortest starting and playing notes ",
+ /* create */ "SpacingSpanner",
+ /* read */
+ "currentMusicalColumn "
+ "currentCommandColumn "
+ "proportionalNotationDuration",
+
+ /* write */ "");