]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/fall-engraver.cc
Merge with master
[lilypond.git] / lily / fall-engraver.cc
index 2a865da024217d43e7fe51d6f470f689d2090945..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 100644 (file)
@@ -1,118 +0,0 @@
-/*
-  fall-engraver.cc -- implement Fall_engraver
-
-  (c) 2006 Han-Wen Nienhuys
-
-  
-*/
-
-#include "engraver.hh"
-#include "item.hh"
-#include "spanner.hh"
-
-class Fall_engraver : public Engraver
-{
-public:
-  TRANSLATOR_DECLARATIONS (Fall_engraver);
-  DECLARE_ACKNOWLEDGER (note_head);
-
-protected:
-  virtual bool try_music (Music *event);
-  void process_music ();
-  void stop_translation_timestep ();
-  void start_translation_timestep ();
-  void stop_fall ();
-  
-private:
-  Moment stop_moment_;
-  Music *fall_event_;
-  Spanner *fall_;
-  Grob *note_head_;
-};
-
-void
-Fall_engraver::stop_fall ()
-{
-  bool bar = scm_is_string (get_property ("whichBar"));
-  
-  
-  fall_->set_bound (RIGHT, unsmob_grob (
-                                       bar
-                                       ? get_property ("currentCommandColumn")
-                                       : get_property ("currentMusicalColumn")));
-  fall_ = 0;
-  note_head_ = 0;
-  fall_event_ = 0;
-}
-
-void
-Fall_engraver::stop_translation_timestep ()
-{
-  if (fall_ && !fall_->get_bound (LEFT)) 
-    {
-      fall_->set_bound (LEFT, note_head_);
-      fall_->set_parent (note_head_,  Y_AXIS);
-    }
-}
-
-void
-Fall_engraver::start_translation_timestep ()
-{
-  if (fall_ && now_mom ().main_part_ >= stop_moment_.main_part_)
-    {
-      stop_fall ();
-    }
-}
-
-void
-Fall_engraver::acknowledge_note_head (Grob_info info)
-{
-  if (!fall_event_)
-    return;
-  
-  if (note_head_ && fall_)
-    {
-      stop_fall ();
-    }
-
-  note_head_ = info.grob ();
-  stop_moment_ = now_mom () + info.music_cause ()->get_length ();
-}
-
-Fall_engraver::Fall_engraver ()
-{
-  fall_ = 0;
-  note_head_ = 0;
-  fall_event_ = 0;
-}
-
-bool
-Fall_engraver::try_music (Music *r)
-{
-  fall_event_ = r;
-  return true;
-}
-
-void
-Fall_engraver::process_music ()
-{
-  if (fall_event_ && !fall_)
-    {
-      fall_ = make_spanner ("BendAfter", fall_event_->self_scm ());
-      fall_->set_property ("delta-position",
-                          scm_from_double (robust_scm2double (fall_event_->get_property ("delta-step"), 0)));
-    }
-}
-
-#include "translator.icc"
-
-
-ADD_ACKNOWLEDGER (Fall_engraver, note_head);
-
-
-ADD_TRANSLATOR (Fall_engraver,
-               /* doc */ "Create fall spanners.",
-               /* create */ "BendAfter",
-               /* accept */ "bend-after-event",
-               /* read */ "",
-               /* write */ "");