Web-ja: update introduction

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

diff --git a/lily/fingering-engraver.cc b/lily/fingering-engraver.cc
index 0c9426f0956b8b36ea4d1f3e1a04f5e329510200..4f40bff00e7a1048aed2b02fdc63e088ad14fa29 100644 (file)
--- a/lily/fingering-engraver.cc
+++ b/lily/fingering-engraver.cc
@@ -1,9 +1,20 @@
 /*
-  fingering-engraver.cc -- implement Fingering_engraver
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 1998--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 1998--2007 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
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "engraver.hh"
@@ -19,44 +30,38 @@
 
 class Fingering_engraver : public Engraver
 {
-  vector<Stream_event*> events_;
-  vector<Item*> fingerings_;
+  vector<Stream_event *> events_;
+  vector<Item *> fingerings_;
 
 public:
   TRANSLATOR_DECLARATIONS (Fingering_engraver);
 protected:
   void stop_translation_timestep ();
   void process_music ();
-  DECLARE_TRANSLATOR_LISTENER (fingering);
-  DECLARE_TRANSLATOR_LISTENER (stroke_finger);
-  DECLARE_ACKNOWLEDGER (rhythmic_head);
-  DECLARE_ACKNOWLEDGER (stem);
+  void listen_fingering (Stream_event *);
+  void acknowledge_rhythmic_head (Grob_info);
+  void acknowledge_stem (Grob_info);
+  void acknowledge_flag (Grob_info);
 
 private:
   void make_script (Direction, Stream_event *, int);
 };
 
-IMPLEMENT_TRANSLATOR_LISTENER (Fingering_engraver, fingering);
 void
 Fingering_engraver::listen_fingering (Stream_event *ev)
 {
   events_.push_back (ev);
 }
 
-IMPLEMENT_TRANSLATOR_LISTENER (Fingering_engraver, stroke_finger);
 void
-Fingering_engraver::listen_stroke_finger (Stream_event *ev)
+Fingering_engraver::acknowledge_stem (Grob_info inf)
 {
-  /*
-    FIXME: should do something.
-    
-    This function is mainly here to shut up a warning
-   */
-  (void)ev;
+  for (vsize i = 0; i < fingerings_.size (); i++)
+    Side_position_interface::add_support (fingerings_[i], inf.grob ());
 }
 
 void
-Fingering_engraver::acknowledge_stem (Grob_info inf)
+Fingering_engraver::acknowledge_flag (Grob_info inf)
 {
   for (vsize i = 0; i < fingerings_.size (); i++)
     Side_position_interface::add_support (fingerings_[i], inf.grob ());
@@ -70,7 +75,7 @@ Fingering_engraver::acknowledge_rhythmic_head (Grob_info inf)
       Grob *t = fingerings_[i];
       Side_position_interface::add_support (t, inf.grob ());
       if (!t->get_parent (X_AXIS))
-       t->set_parent (inf.grob (), X_AXIS);
+        t->set_parent (inf.grob (), X_AXIS);
     }
 }
 
@@ -95,7 +100,7 @@ Fingering_engraver::make_script (Direction d, Stream_event *r, int i)
     junkme.
   */
   SCM pitch = r->get_property ("pitch");
-  if (unsmob_pitch (pitch))
+  if (unsmob<Pitch> (pitch))
     fingering->set_property ("pitch", pitch);
 
   /*
@@ -103,8 +108,7 @@ Fingering_engraver::make_script (Direction d, Stream_event *r, int i)
     fingerings for chords need different settings.
   */
   Side_position_interface::set_axis (fingering, Y_AXIS);
-  Self_alignment_interface::set_align_self (fingering, X_AXIS);
-  Self_alignment_interface::set_center_parent (fingering, X_AXIS);
+  Self_alignment_interface::set_aligned_on_parent (fingering, X_AXIS);
 
   // Hmm
   int priority = 200;
@@ -117,13 +121,10 @@ Fingering_engraver::make_script (Direction d, Stream_event *r, int i)
 
   fingering->set_property ("script-priority", scm_from_int (priority));
 
-  if (!is_direction (fingering->get_property_data ("direction")))
-    {
-      if (d)
-       fingering->set_property ("direction", scm_from_int (d));
-      else
-       fingering->set_property ("direction", scm_from_int (RIGHT));
-    }
+  if (d)
+    fingering->set_property ("direction", scm_from_int (d));
+  else if (!is_direction (fingering->get_property_data ("direction")))
+    fingering->set_property ("direction", scm_from_int (UP));
 
   fingerings_.push_back (fingering);
 }
@@ -131,30 +132,35 @@ Fingering_engraver::make_script (Direction d, Stream_event *r, int i)
 void
 Fingering_engraver::stop_translation_timestep ()
 {
-  if (!fingerings_.size ())
-    return;
-
   fingerings_.clear ();
   events_.clear ();
 }
 
-Fingering_engraver::Fingering_engraver ()
+Fingering_engraver::Fingering_engraver (Context *c)
+  : Engraver (c)
 {
 }
 
-ADD_ACKNOWLEDGER (Fingering_engraver, rhythmic_head);
-ADD_ACKNOWLEDGER (Fingering_engraver, stem);
+
+void
+Fingering_engraver::boot ()
+{
+  ADD_LISTENER (Fingering_engraver, fingering);
+  ADD_ACKNOWLEDGER (Fingering_engraver, rhythmic_head);
+  ADD_ACKNOWLEDGER (Fingering_engraver, stem);
+  ADD_ACKNOWLEDGER (Fingering_engraver, flag);
+}
 
 ADD_TRANSLATOR (Fingering_engraver,
-               /* doc */
-               "Create fingering scripts.",
+                /* doc */
+                "Create fingering scripts.",
 
-               /* create */
-               "Fingering ",
+                /* create */
+                "Fingering ",
 
-               /* read */
-               "",
+                /* read */
+                "",
 
-               /* write */
-               ""
-               );
+                /* write */
+                ""
+               );