X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fledger-line-engraver.cc;h=fe769b70bb429fd62f2cbbecc2f4a8ba200e5b87;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=550dc5a014ed95ec97da52e2ac4a6a96b7965050;hpb=9d3f514fc1b08205c9c7b2a6ae30f2bd2ba80ade;p=lilypond.git

diff --git a/lily/ledger-line-engraver.cc b/lily/ledger-line-engraver.cc
index 550dc5a014..fe769b70bb 100644
--- a/lily/ledger-line-engraver.cc
+++ b/lily/ledger-line-engraver.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2004--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 2004--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "pointer-group-interface.hh"
@@ -14,7 +14,8 @@
 class Ledger_line_engraver : public Engraver
 {
   Spanner *span_;
-
+  vector<Grob*> ledgered_grobs_;
+  
 public:
   TRANSLATOR_DECLARATIONS (Ledger_line_engraver);
 
@@ -27,6 +28,7 @@ protected:
 
   void start_spanner ();
   void stop_spanner ();
+  void stop_translation_timestep ();
 };
 
 Ledger_line_engraver::Ledger_line_engraver ()
@@ -38,11 +40,28 @@ void
 Ledger_line_engraver::start_spanner ()
 {
   assert (!span_);
-  span_ = make_spanner ("LedgerLineSpanner", SCM_EOL);
 
+  span_ = make_spanner ("LedgerLineSpanner", SCM_EOL);
   span_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn")));
 }
 
+void
+Ledger_line_engraver::stop_translation_timestep ()
+{
+  if (span_)
+    {
+      for (vsize i = 0; i < ledgered_grobs_.size (); i++)
+	{
+	  if (!to_boolean (ledgered_grobs_[i]->get_property ("no-ledgers")))
+	    Pointer_group_interface::add_grob (span_,
+					       ly_symbol2scm ("note-heads"),
+					       ledgered_grobs_[i]);
+	}
+    }
+
+  ledgered_grobs_.clear ();
+}
+
 void
 Ledger_line_engraver::process_music ()
 {
@@ -76,8 +95,7 @@ Ledger_line_engraver::acknowledge_staff_symbol (Grob_info s)
   Spanner *sym = dynamic_cast<Spanner *> (s.grob ());
 
   if (!span_
-      || (span_->get_bound (LEFT) != sym->get_bound (LEFT)
-	  && sym->get_bound (LEFT)))
+      || (span_->get_bound (LEFT) != sym->get_bound (LEFT)))
     {
       stop_spanner ();
       start_spanner ();
@@ -87,12 +105,7 @@ Ledger_line_engraver::acknowledge_staff_symbol (Grob_info s)
 void
 Ledger_line_engraver::acknowledge_ledgered (Grob_info s)
 {
-  if (span_)
-    {
-      if (!to_boolean (s.grob ()->get_property ("no-ledgers")))
-	Pointer_group_interface::add_grob (span_, ly_symbol2scm ("note-heads"),
-					   s.grob ());
-    }
+  ledgered_grobs_.push_back (s.grob ());
 }
 
 #include "translator.icc"
@@ -100,8 +113,16 @@ Ledger_line_engraver::acknowledge_ledgered (Grob_info s)
 ADD_ACKNOWLEDGER (Ledger_line_engraver, ledgered);
 ADD_ACKNOWLEDGER (Ledger_line_engraver, staff_symbol);
 ADD_TRANSLATOR (Ledger_line_engraver,
-		"Creates the spanner to draw ledger lines, and notices objects that need ledger lines",
-		/* create */ "LedgerLineSpanner",
-		/* accept */ "",
-		/* read */ "",
-		/* write */ "")
+		/* doc */
+		"Create the spanner to draw ledger lines, and notices"
+		" objects that need ledger lines.",
+
+		/* create */
+		"LedgerLineSpanner ",
+
+		/* read */
+		"",
+
+		/* write */
+		""
+		);