release: 1.5.29

[lilypond.git] / lily / vertical-align-engraver.cc

diff --git a/lily/vertical-align-engraver.cc b/lily/vertical-align-engraver.cc
index fa4d80f0a8c1df18a4fe9b65bb0f1783a51c2bf4..3faa77f3d0783ac24a3ab6055304bd42e229bb47 100644 (file)
--- a/lily/vertical-align-engraver.cc
+++ b/lily/vertical-align-engraver.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c)  1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 #include "translator-group.hh"
 #include "paper-column.hh"
@@ -16,71 +16,59 @@
 class Vertical_align_engraver : public Engraver
 {
   Spanner * valign_p_;
-  bool qualifies_b (Score_element_info) const;  
+  bool qualifies_b (Grob_info) const;  
 public:
-  VIRTUAL_COPY_CONS(Translator);
-  Vertical_align_engraver();
+  TRANSLATOR_DECLARATIONS(Vertical_align_engraver);
 protected:
-  virtual void acknowledge_element (Score_element_info);
-  virtual void do_creation_processing();
-  virtual void do_removal_processing();
+  virtual void acknowledge_grob (Grob_info);
+  virtual void initialize ();
+  virtual void finalize ();
 };
 
-Vertical_align_engraver::Vertical_align_engraver()
+Vertical_align_engraver::Vertical_align_engraver ()
 {
   valign_p_ =0;
 }
 
 void
-Vertical_align_engraver::do_creation_processing()
+Vertical_align_engraver::initialize ()
 {
-  valign_p_ =new Spanner (get_property ("basicVerticalAlignmentProperties"));
-  Align_interface::set_interface (valign_p_);
-  Align_interface::set_axis (valign_p_,Y_AXIS);
-  valign_p_->set_elt_property ("stacking-dir",
-                              gh_int2scm (DOWN));
-  
-  valign_p_->set_bound(LEFT,unsmob_element (get_property ("currentCommandColumn")));
-  announce_element (valign_p_ , 0);
+  valign_p_ =new Spanner (get_property ("VerticalAlignment"));
+  valign_p_->set_bound (LEFT,unsmob_grob (get_property ("currentCommandColumn")));
+  announce_grob (valign_p_ , 0);
 }
 
 void
-Vertical_align_engraver::do_removal_processing()
+Vertical_align_engraver::finalize ()
 {
-  SCM min = get_property ("maxVerticalAlign");
-  SCM max = get_property ("minVerticalAlign");
-
-  if (gh_number_p (min) || gh_number_p (max))
-    {
-      min = gh_number_p (min) ? min : gh_double2scm (0.0);
-      max = gh_number_p (max) ? max : gh_double2scm (infinity_f);    
-    
-      valign_p_->set_elt_property ("threshold",
-                                  gh_cons (min,max));
-    }
-  
-  valign_p_->set_bound(RIGHT,unsmob_element (get_property ("currentCommandColumn")));
-  typeset_element (valign_p_);
+  valign_p_->set_bound (RIGHT,unsmob_grob (get_property ("currentCommandColumn")));
+  typeset_grob (valign_p_);
   valign_p_ =0;
 }
 
 
 bool
-Vertical_align_engraver::qualifies_b (Score_element_info i) const
+Vertical_align_engraver::qualifies_b (Grob_info i) const
 {
-  int sz = i.origin_trans_l_arr ((Translator*)this).size()  ;
+  int sz = i.origin_trans_l_arr ((Translator*)this).size ()  ;
 
-  return sz > 1 && Axis_group_interface::has_interface (i.elem_l_)
-    && !i.elem_l_->parent_l (Y_AXIS) && Axis_group_interface::axis_b (i.elem_l_, Y_AXIS);
+  return sz > 1 && Axis_group_interface::has_interface (i.grob_l_)
+    && !i.grob_l_->get_parent (Y_AXIS) && Axis_group_interface::axis_b (i.grob_l_, Y_AXIS);
 }
 
 void
-Vertical_align_engraver::acknowledge_element (Score_element_info i)
+Vertical_align_engraver::acknowledge_grob (Grob_info i)
 {
   if (qualifies_b (i))
     {
-      Align_interface::add_element (valign_p_,i.elem_l_);
+      Align_interface::add_element (valign_p_,i.grob_l_, get_property ("verticalAlignmentChildCallback"));
     }
 }
 
-ADD_THIS_TRANSLATOR(Vertical_align_engraver);
+
+ENTER_DESCRIPTION(Vertical_align_engraver,
+/* descr */       "Catch Vertical axis groups and stack them.",
+/* creats*/       "VerticalAlignment",
+/* acks  */       "axis-group-interface",
+/* reads */       "",
+/* write */       "");