Doc-es: various updates.

[lilypond.git] / lily / grob-info.cc

diff --git a/lily/grob-info.cc b/lily/grob-info.cc
index f4042ec2968f6705661258deb0ed63826b0ce54d..aab0d3cb8d61b352cf381969d479982d7300f08e 100644 (file)
--- a/lily/grob-info.cc
+++ b/lily/grob-info.cc
@@ -1,16 +1,40 @@
 /*
-  grob-info.cc -- implement Grob_info
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.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 "grob.hh"
+#include "context.hh"
 #include "grob-info.hh"
+#include "item.hh"
 #include "music.hh"
+#include "spanner.hh"
+#include "stream-event.hh"
 #include "translator-group.hh"
-#include "context.hh"
+
+Grob_info::Grob_info (Translator *t, Grob *g)
+{
+  origin_trans_ = t;
+  grob_ = g;
+
+  /*
+    assert here, because this is easier to debug.
+  */
+  assert (g);
+}
 
 Grob_info::Grob_info ()
 {
@@ -18,23 +42,59 @@ Grob_info::Grob_info ()
   origin_trans_ = 0;
 }
 
-Music*
-Grob_info::music_cause ()
+Stream_event *
+Grob_info::event_cause () const
 {
-  SCM cause = grob_->get_grob_property ("cause"); 
-  return unsmob_music (cause);
+  SCM cause = grob_->get_property ("cause");
+  return unsmob<Stream_event> (cause);
 }
 
-Link_array<Context>
-Grob_info::origin_contexts (Translator* end) const
+vector<Context *>
+Grob_info::origin_contexts (Translator *end) const
 {
-  Context * t = origin_trans_->daddy_context_;
-  Link_array<Context> r;
-  do {
-    r.push (t);
-    t = t->daddy_context_;
-  } while (t && t != end->daddy_context_);
-  
+  Context *t = origin_trans_->context ();
+  vector<Context *> r;
+  do
+    {
+      r.push_back (t);
+      t = t->get_parent_context ();
+    }
+  while (t && t != end->context ());
+
   return r;
 }
-  
+
+Context *
+Grob_info::context () const
+{
+  return origin_trans_->context ();
+}
+
+Spanner *
+Grob_info::spanner () const
+{
+  return dynamic_cast<Spanner *> (grob_);
+}
+
+Item *
+Grob_info::item () const
+{
+  return dynamic_cast<Item *> (grob_);
+}
+
+Stream_event *
+Grob_info::ultimate_event_cause () const
+{
+  SCM cause = grob_->self_scm ();
+  while (unsmob<Grob> (cause))
+    {
+      cause = unsmob<Grob> (cause)->get_property ("cause");
+    }
+  return unsmob<Stream_event> (cause);
+}
+
+bool
+Grob_info::less (Grob_info i, Grob_info j)
+{
+  return Grob::less (i.grob (), j.grob ());
+}