-/*
- spacing-engraver.cc -- implement Spacing_engraver
-
+/*
+ spacing-engraver.cc -- implement Spacing_engraver
+
source file of the GNU LilyPond music typesetter
-
- (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-#include "musical-request.hh"
-#include "score-column.hh"
-#include "spacing-engraver.hh"
-#include "spacing-spanner.hh"
+ (c) 1999--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
+#include "paper-column.hh"
+#include "engraver.hh"
+#include "pqueue.hh"
+#include "note-spacing.hh"
+#include "staff-spacing.hh"
+#include "pointer-group-interface.hh"
+#include "spanner.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 &);
+};
+
+/*
+ TODO: allow starting & stopping of spacing regions.
+*/
+/*
+ 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_;
+
+ TRANSLATOR_DECLARATIONS (Spacing_engraver);
+
+protected:
+ DECLARE_ACKNOWLEDGER (staff_spacing);
+ DECLARE_ACKNOWLEDGER (note_spacing);
+ DECLARE_ACKNOWLEDGER (rhythmic_head);
+
+ void start_translation_timestep ();
+ void stop_translation_timestep ();
+ void process_music ();
+ virtual void finalize ();
+};
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)
{
-
- return (h1.end_ - h2.end_ ).sign ();
+ return (h1.end_ - h2.end_).main_part_.sign ();
}
-Spacing_engraver::Spacing_engraver()
+Spacing_engraver::Spacing_engraver ()
{
- spacing_p_ = 0;
+ spacing_ = 0;
}
void
-Spacing_engraver::do_creation_processing ()
+Spacing_engraver::process_music ()
{
- spacing_p_ =new Spacing_spanner;
- spacing_p_->set_bounds (LEFT, get_staff_info ().command_pcol_l ());
- announce_element (Score_element_info (spacing_p_, 0));
+ if (!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 ()
{
- Paper_column * p = get_staff_info ().command_pcol_l ();
+ if (spacing_)
+ {
+ Grob *p = unsmob_grob (get_property ("currentCommandColumn"));
- spacing_p_->set_bounds (RIGHT, p);
- typeset_element (spacing_p_);
- spacing_p_ =0;
+ spacing_->set_bound (RIGHT, p);
+ spacing_ = 0;
+ }
}
void
-Spacing_engraver::acknowledge_element (Score_element_info i)
+Spacing_engraver::acknowledge_note_spacing (Grob_info i)
{
- if (Rhythmic_req * r = dynamic_cast<Rhythmic_req*>(i.req_l_))
+ 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;
+
+ /*
+ 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);
+ 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_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")));
+
+ 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)
- shortest_playing = shortest_playing <? m;
+ Music *mus = playing_durations_[i].info_.music_cause ();
+ if (mus)
+ {
+ Moment m = mus->get_length ();
+ shortest_playing = min (shortest_playing, m);
+ }
}
+ Moment starter;
+ starter.set_infinite (1);
- Moment starter, inf;
- inf.set_infinite (1);
- starter=inf;
- for (int i=0; i < now_durations_.size (); i++)
+ for (vsize i = 0; i < now_durations_.size (); i++)
{
- Moment m = now_durations_[i].info_.req_l_->length_mom ();
- if (m)
- starter = starter <? m;
-
- playing_durations_.insert (now_durations_[i]);
+ Moment m = now_durations_[i].info_.music_cause ()->get_length ();
+ if (m.to_bool ())
+ {
+ starter = min (starter, m);
+ 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 ());
-
- sc->shortest_playing_mom_ = shortest_playing;
- sc->shortest_starter_mom_ = starter;
+
+ shortest_playing = min (shortest_playing, starter);
+
+ assert (starter.to_bool ());
+ SCM sh = shortest_playing.smobbed_copy ();
+ SCM st = starter.smobbed_copy ();
+
+ 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 ();
+ 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",
+ /* accept */ "",
+ /* read */
+ "currentMusicalColumn "
+ "currentCommandColumn "
+ "proportionalNotationDuration",
+
+ /* write */ "");
projects / lilypond.git / blobdiff