Release: bump Welcome versions.

[lilypond.git] / lily / axis-group-engraver.cc

diff --git a/lily/axis-group-engraver.cc b/lily/axis-group-engraver.cc
index c5dbb94e63eb1d912fe4b09c0b6d8977ee631dd0..d500c6ba64fea97a2f96e362143137ecd01a429e 100644 (file)
--- a/lily/axis-group-engraver.cc
+++ b/lily/axis-group-engraver.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1999--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1999--2015 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
@@ -36,12 +36,14 @@
 class Axis_group_engraver : public Engraver
 {
 protected:
+  bool active_;
   Spanner *staffline_;
   SCM interesting_;
   vector<Grob *> elts_;
   void process_music ();
+  virtual void initialize ();
   virtual void finalize ();
-  DECLARE_ACKNOWLEDGER (grob);
+  void acknowledge_grob (Grob_info);
   void process_acknowledged ();
   virtual Spanner *get_spanner ();
   virtual void add_element (Grob *);
@@ -53,10 +55,20 @@ public:
 };
 
 
-Axis_group_engraver::Axis_group_engraver ()
+Axis_group_engraver::Axis_group_engraver (Context *c)
+  : Engraver (c)
 {
   staffline_ = 0;
   interesting_ = SCM_EOL;
+  active_ = false;
+}
+
+void
+Axis_group_engraver::initialize ()
+{
+  active_ = !to_boolean (get_property ("hasAxisGroup"));
+  if (active_)
+    context ()->set_property ("hasAxisGroup", SCM_BOOL_T);
 }
 
 void
@@ -75,10 +87,10 @@ Axis_group_engraver::must_be_last () const
 void
 Axis_group_engraver::process_music ()
 {
-  if (!staffline_)
+  if (!staffline_ && active_)
     {
       staffline_ = get_spanner ();
-      Grob *it = unsmob_grob (get_property ("currentCommandColumn"));
+      Grob *it = unsmob<Grob> (get_property ("currentCommandColumn"));
       staffline_->set_bound (LEFT, it);
     }
   interesting_ = get_property ("keepAliveInterfaces");
@@ -95,7 +107,7 @@ Axis_group_engraver::finalize ()
 {
   if (staffline_)
     {
-      Grob *it = unsmob_grob (get_property ("currentCommandColumn"));
+      Grob *it = unsmob<Grob> (get_property ("currentCommandColumn"));
       staffline_->set_bound (RIGHT, it);
 
       Pointer_group_interface::set_ordered (staffline_, ly_symbol2scm ("elements"), false);
@@ -105,14 +117,20 @@ Axis_group_engraver::finalize ()
 void
 Axis_group_engraver::acknowledge_grob (Grob_info i)
 {
+  if (!staffline_)
+    return;
+
   elts_.push_back (i.grob ());
 
-  if (staffline_ && to_boolean(staffline_->get_property("remove-empty")))
+  if (to_boolean (staffline_->get_property ("remove-empty")))
     {
       for (SCM s = interesting_; scm_is_pair (s); s = scm_cdr (s))
         {
           if (i.grob ()->internal_has_interface (scm_car (s)))
-            Hara_kiri_group_spanner::add_interesting_item (staffline_, i.grob ());
+            {
+              Hara_kiri_group_spanner::add_interesting_item (staffline_, i.grob ());
+              break;
+            }
         }
     }
 }
@@ -129,7 +147,7 @@ Axis_group_engraver::process_acknowledged ()
 
   for (vsize i = 0; i < elts_.size (); i++)
     {
-      if (!unsmob_grob (elts_[i]->get_object ("axis-group-parent-Y")))
+      if (!unsmob<Grob> (elts_[i]->get_object ("axis-group-parent-Y")))
         {
           if (staffline_->get_parent (Y_AXIS)
               && staffline_->get_parent (Y_AXIS) == elts_[i])
@@ -153,7 +171,12 @@ Axis_group_engraver::add_element (Grob *e)
   Axis_group_interface::add_element (staffline_, e);
 }
 
-ADD_ACKNOWLEDGER (Axis_group_engraver, grob);
+
+void
+Axis_group_engraver::boot ()
+{
+  ADD_ACKNOWLEDGER (Axis_group_engraver, grob);
+}
 
 ADD_TRANSLATOR (Axis_group_engraver,
                 /* doc */
@@ -165,8 +188,9 @@ ADD_TRANSLATOR (Axis_group_engraver,
 
                 /* read */
                 "currentCommandColumn "
-                "keepAliveInterfaces ",
-
+                "keepAliveInterfaces "
+                "hasAxisGroup ",
+                
                 /* write */
-                ""
+                "hasAxisGroup "
                );