Mutopia tagline.

[lilypond.git] / lily / ligature-bracket-engraver.cc

diff --git a/lily/ligature-bracket-engraver.cc b/lily/ligature-bracket-engraver.cc
index 9266ccce61c8cb60cee7de7219d310ab27c7f634..975b85b7751bdd7b97329992ed848c8c94e17196 100644 (file)
--- a/lily/ligature-bracket-engraver.cc
+++ b/lily/ligature-bracket-engraver.cc
@@ -3,19 +3,29 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 2002 Juergen Reuter <reuter@ipd.uka.de>
+  (c) 2002--2004 Juergen Reuter <reuter@ipd.uka.de>
   
  */
 #include "ligature-engraver.hh"
+#include "note-column.hh"
+#include "tuplet-bracket.hh"
 #include "spanner.hh"
 
+/*
+ * This engraver marks ligatures of any kind by just printing a
+ * horizontal square bracket on top of each ligature.  See class
+ * Ligature_engraver for more information on the interaction between
+ * this class and its superclass.
+ */
 class Ligature_bracket_engraver : public Ligature_engraver
 {
 protected:
   virtual Spanner *create_ligature_spanner ();
+  virtual void acknowledge_grob (Grob_info);
+  virtual void typeset_ligature (Spanner *ligature, Array<Grob_info>);
 
 public:
-  TRANSLATOR_DECLARATIONS(Ligature_bracket_engraver);
+  TRANSLATOR_DECLARATIONS (Ligature_bracket_engraver);
 
 private:
   void typeset_ligature_bracket ();
@@ -29,13 +39,33 @@ Ligature_bracket_engraver::Ligature_bracket_engraver ()
 Spanner *
 Ligature_bracket_engraver::create_ligature_spanner ()
 {
-  return new Spanner (get_property ("LigatureBracket"));
+  return make_spanner ("LigatureBracket");
+}
+
+void
+Ligature_bracket_engraver::typeset_ligature (Spanner *ligature, Array<Grob_info>)
+{
+  typeset_grob (ligature);
+}
+
+void
+Ligature_bracket_engraver::acknowledge_grob (Grob_info info)
+{
+  if (current_ligature ())
+    {
+      if (Note_column::has_interface (info.grob_))
+       {
+         Tuplet_bracket::add_column (current_ligature (),
+                                     dynamic_cast<Item*> (info.grob_));
+       }
+      else Ligature_engraver::acknowledge_grob (info);
+    }
 }
 
-ENTER_DESCRIPTION(Ligature_bracket_engraver,
+ENTER_DESCRIPTION (Ligature_bracket_engraver,
 /* descr */       "Handles Ligature_events by engraving Ligature brackets.",
-/* creats*/       "LigatureBracket",
-/* accepts */     "",
-/* acks  */      "ligature-head-interface rest-interface",
+/* creats*/       "TupletBracket",
+/* accepts */     "ligature-event",
+/* acks  */      "rest-interface note-column-interface",
 /* reads */       "",
 /* write */       "");