source file of the GNU LilyPond music typesetter
- (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
+#include "paper-column.hh"
#include "engraver.hh"
#include "pqueue.hh"
-#include "musical-request.hh"
-#include "score-column.hh"
+#include "note-spacing.hh"
+#include "staff-spacing.hh"
+#include "group-interface.hh"
+#include "spanner.hh"
struct Rhythmic_tuple
{
- Score_element_info info_;
+ Grob_info info_;
Moment end_;
Rhythmic_tuple ()
{
}
- Rhythmic_tuple (Score_element_info i, Moment m )
+ 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.
+
+ should be the last one of the toplevel context
+*/
+class Spacing_engraver : public Engraver
+{
+ PQueue<Rhythmic_tuple> playing_durations_;
+ Array<Rhythmic_tuple> now_durations_;
+ Array<Rhythmic_tuple> stopped_durations_;
+ Moment now_;
+ Spanner * spacing_;
+
+ TRANSLATOR_DECLARATIONS (Spacing_engraver);
+protected:
+ virtual void acknowledge_grob (Grob_info);
+ virtual void start_translation_timestep ();
+ virtual void stop_translation_timestep ();
+ virtual void process_music ();
+ virtual void finalize ();
+};
+
inline int
compare (Rhythmic_tuple const &a, Rhythmic_tuple const &b)
{
}
int
-Rhythmic_tuple::time_compare (Rhythmic_tuple const&h1,
+Rhythmic_tuple::time_compare (Rhythmic_tuple const &h1,
Rhythmic_tuple const &h2)
{
- return (h1.end_ - h2.end_ ).sign ();
+ return (h1.end_ - h2.end_).main_part_.sign ();
}
-/**
- Acknowledge rhythmic elements, for initializing spacing fields in
- the columns. */
-class Spacing_engraver : public Engraver
+Spacing_engraver::Spacing_engraver ()
{
- PQueue<Rhythmic_tuple> playing_durations_;
- Array<Rhythmic_tuple> now_durations_;
- Array<Rhythmic_tuple> stopped_durations_;
-
-protected:
- VIRTUAL_COPY_CONS(Translator);
- virtual void acknowledge_element (Score_element_info);
- virtual void do_post_move_processing ();
- virtual void do_pre_move_processing ();
-
-public:
+ spacing_ = 0;
+}
-};
+void
+Spacing_engraver::process_music ()
+{
+ if (!spacing_)
+ {
+ spacing_ = make_spanner ("SpacingSpanner", SCM_EOL);
+ spacing_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn")));
+
+ }
+}
+void
+Spacing_engraver::finalize ()
+{
+ if (spacing_)
+ {
+ Grob * p = unsmob_grob (get_property ("currentCommandColumn"));
+
+ spacing_->set_bound (RIGHT, p);
+ spacing_ =0;
+ }
+}
void
-Spacing_engraver::acknowledge_element (Score_element_info i)
+Spacing_engraver::acknowledge_grob (Grob_info i)
{
- if (Rhythmic_req * r = dynamic_cast<Rhythmic_req*>(i.req_l_))
+ if (Note_spacing::has_interface (i.grob_) || Staff_spacing::has_interface (i.grob_))
{
- Rhythmic_tuple t(i, now_mom () + r->length_mom ());
- now_durations_.push (t);
+ Pointer_group_interface::add_grob (spacing_, ly_symbol2scm ("wishes"), i.grob_);
+ }
+
+ if (i.grob_->internal_has_interface (ly_symbol2scm ("lyric-syllable-interface"))
+ || i.grob_->internal_has_interface (ly_symbol2scm ("multi-measure-event")))
+ return;
+
+ /*
+ only pay attention to durations that are not grace notes.
+ */
+ if (!now_.grace_part_)
+ {
+ Music *r = i.music_cause ();
+ if (r && r->is_mus_type ("rhythmic-event"))
+ {
+ Moment len = r->get_length ();
+ Rhythmic_tuple t (i, now_mom () + len);
+ now_durations_.push (t);
+ }
}
}
void
-Spacing_engraver::do_pre_move_processing ()
+Spacing_engraver::stop_translation_timestep ()
{
Moment shortest_playing;
shortest_playing.set_infinite (1);
for (int i=0; i < playing_durations_.size (); i++)
{
- Moment m = (playing_durations_[i].info_.req_l_)->length_mom ();
- if (m)
- shortest_playing = shortest_playing <? m;
+ Music * mus = playing_durations_[i].info_.music_cause ();
+ if (mus)
+ {
+ Moment m = mus->get_length ();
+ shortest_playing = shortest_playing <? m;
+ }
}
-
Moment starter;
starter.set_infinite (1);
+
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 m = now_durations_[i].info_.music_cause ()->get_length ();
+ if (m.to_bool ())
+ {
+ starter = starter <? m;
+ playing_durations_.insert (now_durations_[i]);
- playing_durations_.insert (now_durations_[i]);
+ }
}
now_durations_.clear ();
shortest_playing = shortest_playing <? starter;
- Score_column * sc
- = dynamic_cast<Score_column*> (get_staff_info ().musical_pcol_l ());
+ Paper_column * sc
+ = dynamic_cast<Paper_column*> (unsmob_grob (get_property ("currentMusicalColumn")));
- sc->shortest_playing_mom_ = shortest_playing;
- sc->shortest_starter_mom_ = starter;
-}
+ assert (starter.to_bool ());
+ SCM sh = shortest_playing.smobbed_copy ();
+ SCM st = starter.smobbed_copy ();
+ sc->set_property ("shortest-playing-duration", sh);
+ sc->set_property ("shortest-starter-duration", st);
+}
void
-Spacing_engraver::do_post_move_processing ()
+Spacing_engraver::start_translation_timestep ()
{
- Moment now = now_mom ();
+ 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)
+ while (playing_durations_.size () && playing_durations_.front ().end_ == now_)
stopped_durations_.push (playing_durations_.get ());
}
-ADD_THIS_TRANSLATOR(Spacing_engraver);
+
+
+ENTER_DESCRIPTION (Spacing_engraver,
+/* descr */ "make a SpacingSpanner and do bookkeeping of shortest starting and playing notes ",
+/* creats*/ "SpacingSpanner",
+/* accepts */ "",
+/* acks */ "grob-interface",
+/* reads */ "",
+/* write */ "");
projects / lilypond.git / blobdiff