web: move some old news from front page to archive

[lilypond.git] / lily / beam-engraver.cc

diff --git a/lily/beam-engraver.cc b/lily/beam-engraver.cc
index bd12ffbc2580c17b7ddf133c081e02f4edcaa105..a89435de6871a6ff391ac34075cea7e3c3f44527 100644 (file)
--- a/lily/beam-engraver.cc
+++ b/lily/beam-engraver.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1998--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1998--2012 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
@@ -62,7 +62,7 @@ protected:
 
   Beaming_options beaming_options_;
   Beaming_options finished_beaming_options_;
-  
+
   void typeset_beam ();
   void set_melisma (bool);
 
@@ -123,7 +123,7 @@ Beam_engraver::listen_beam (Stream_event *ev)
 
       Direction updown = to_dir (ev->get_property ("direction"));
       if (updown)
-       forced_direction_ = updown;
+        forced_direction_ = updown;
     }
   else if (d == STOP && valid_end_point ())
     ASSIGN_EVENT_ONCE (stop_ev_, ev);
@@ -143,17 +143,17 @@ Beam_engraver::process_music ()
   if (start_ev_)
     {
       if (beam_)
-       {
-         start_ev_->origin ()->warning (_ ("already have a beam"));
-         return;
-       }
+        {
+          start_ev_->origin ()->warning (_ ("already have a beam"));
+          return;
+        }
 
       set_melisma (true);
       prev_start_ev_ = start_ev_;
       beam_ = make_spanner ("Beam", start_ev_->self_scm ());
 
       Moment mp (robust_scm2moment (get_property ("measurePosition"),
-                                   Moment (0)));
+                                    Moment (0)));
 
       beam_start_location_ = mp;
       beam_start_mom_ = now_mom ();
@@ -167,7 +167,7 @@ Beam_engraver::process_music ()
   if (stop_ev_ && beam_)
     {
       announce_end_grob (beam_, stop_ev_->self_scm ());
-      
+
     }
 }
 
@@ -177,13 +177,13 @@ Beam_engraver::typeset_beam ()
   if (finished_beam_)
     {
       if (!finished_beam_->get_bound (RIGHT))
-       finished_beam_->set_bound (RIGHT, finished_beam_->get_bound (LEFT));
+        finished_beam_->set_bound (RIGHT, finished_beam_->get_bound (LEFT));
       if (forced_direction_)
-       {
-         Grob *stem = finished_beam_->get_bound (RIGHT);
-         set_grob_direction (stem, forced_direction_);
-         forced_direction_ = CENTER;
-       }
+        {
+          Grob *stem = finished_beam_->get_bound (RIGHT);
+          set_grob_direction (stem, forced_direction_);
+          forced_direction_ = CENTER;
+        }
       finished_beam_info_->beamify (finished_beaming_options_);
 
       Beam::set_beaming (finished_beam_, finished_beam_info_);
@@ -212,7 +212,7 @@ Beam_engraver::stop_translation_timestep ()
       finished_beam_ = beam_;
       finished_beam_info_ = beam_info_;
       finished_beaming_options_ = beaming_options_;
-      
+
       stop_ev_ = 0;
       beam_ = 0;
       beam_info_ = 0;
@@ -230,8 +230,8 @@ Beam_engraver::finalize ()
       prev_start_ev_->origin ()->warning (_ ("unterminated beam"));
 
       /*
-       we don't typeset it, (we used to, but it was commented
-       out. Reason unknown) */
+        we don't typeset it, (we used to, but it was commented
+        out. Reason unknown) */
       beam_->suicide ();
       delete beam_info_;
     }
@@ -243,7 +243,7 @@ Beam_engraver::acknowledge_rest (Grob_info info)
   if (beam_
       && !scm_is_number (info.grob ()->get_property_data ("staff-position")))
     chain_offset_callback (info.grob (),
-                          Beam::rest_collision_callback_proc, Y_AXIS);
+                           Beam::rest_collision_callback_proc, Y_AXIS);
 }
 
 void
@@ -251,7 +251,7 @@ Beam_engraver::acknowledge_stem (Grob_info info)
 {
   if (!beam_)
     return;
-  
+
   Moment now = now_mom ();
   if (!valid_start_point ())
     return;
@@ -259,7 +259,7 @@ Beam_engraver::acknowledge_stem (Grob_info info)
   Item *stem = dynamic_cast<Item *> (info.grob ());
   if (Stem::get_beam (stem))
     return;
-  
+
   Stream_event *ev = info.ultimate_event_cause ();
   if (!ev->in_event_class ("rhythmic-event"))
     {
@@ -268,15 +268,18 @@ Beam_engraver::acknowledge_stem (Grob_info info)
     }
 
   last_stem_added_at_ = now;
-  int durlog = unsmob_duration (ev->get_property ("duration"))->duration_log ();
+
+  Duration *stem_duration = unsmob_duration (ev->get_property ("duration"));
+  int durlog = stem_duration->duration_log ();
+  //int durlog = unsmob_duration (ev->get_property ("duration"))->duration_log ();
   if (durlog <= 2)
     {
       ev->origin ()->warning (_ ("stem does not fit in beam"));
       prev_start_ev_->origin ()->warning (_ ("beam was started here"));
       /*
-       don't return, since
+        don't return, since
 
-       [r4 c8] can just as well be modern notation.
+        [r4 c8] can just as well be modern notation.
       */
     }
 
@@ -286,8 +289,10 @@ Beam_engraver::acknowledge_stem (Grob_info info)
   stem->set_property ("duration-log", scm_from_int (durlog));
   Moment stem_location = now - beam_start_mom_ + beam_start_location_;
   beam_info_->add_stem (stem_location,
-                       max (durlog- 2, 0),
-                       Stem::is_invisible (stem));
+                        max (durlog - 2, 0),
+                        Stem::is_invisible (stem),
+                        stem_duration->factor (),
+                        (stem->get_property ("tuplet-start") == SCM_BOOL_T));
   Beam::add_stem (beam_, stem);
 }
 
@@ -295,21 +300,22 @@ ADD_ACKNOWLEDGER (Beam_engraver, stem);
 ADD_ACKNOWLEDGER (Beam_engraver, rest);
 
 ADD_TRANSLATOR (Beam_engraver,
-               /* doc */
-               "Handle @code{Beam} events by engraving beams.  If omitted,"
-               " then notes are printed with flags instead of beams.",
-               
-               /* create */
-               "Beam ",
-
-               /* read */
-               "beamMelismaBusy "
-               "beatLength "
-               "subdivideBeams ",
-
-               /* write */
-               "forbidBreak"
-               );
+                /* doc */
+                "Handle @code{Beam} events by engraving beams.  If omitted,"
+                " then notes are printed with flags instead of beams.",
+
+                /* create */
+                "Beam ",
+
+                /* read */
+                "baseMoment "
+                "beamMelismaBusy "
+                "beatStructure "
+                "subdivideBeams ",
+
+                /* write */
+                "forbidBreak"
+               );
 
 class Grace_beam_engraver : public Beam_engraver
 {
@@ -317,7 +323,7 @@ public:
   TRANSLATOR_DECLARATIONS (Grace_beam_engraver);
 
   DECLARE_TRANSLATOR_LISTENER (beam);
-  
+
 protected:
   virtual bool valid_start_point ();
   virtual bool valid_end_point ();
@@ -356,25 +362,25 @@ Grace_beam_engraver::listen_beam (Stream_event *ev)
     stop_ev_ = ev;
 }
 
-
 ADD_ACKNOWLEDGER (Grace_beam_engraver, stem);
 ADD_ACKNOWLEDGER (Grace_beam_engraver, rest);
 
 ADD_TRANSLATOR (Grace_beam_engraver,
-               /* doc */
-               "Handle @code{Beam} events by engraving beams.  If omitted,"
-               " then notes are printed with flags instead of beams.  Only"
-               " engraves beams when we are at grace points in time.",
-               
-               /* create */
-               "Beam ",
-
-               /* read */
-               "beamMelismaBusy "
-               "beatLength "
-               "subdivideBeams ",
-
-               /* write */
-               ""
-               );
+                /* doc */
+                "Handle @code{Beam} events by engraving beams.  If omitted,"
+                " then notes are printed with flags instead of beams.  Only"
+                " engraves beams when we are at grace points in time.",
+
+                /* create */
+                "Beam ",
+
+                /* read */
+                "baseMoment "
+                "beamMelismaBusy "
+                "beatStructure "
+                "subdivideBeams ",
+
+                /* write */
+                ""
+               );