Add warning about changed syntax for text on line spanners.

[lilypond.git] / lily / staff-spacing.cc

diff --git a/lily/staff-spacing.cc b/lily/staff-spacing.cc
index 2b1368137620a890f264340d7f772d6bf24c224f..06bceb858051865e840b4251f53ebb2bcba1a8dd 100644 (file)
--- a/lily/staff-spacing.cc
+++ b/lily/staff-spacing.cc
@@ -108,34 +108,21 @@ Staff_spacing::next_notes_correction (Grob *me,
 }
 
 /* We calculate three things here: the ideal distance, the minimum distance
-   (which is the distance at which collisions will occure) and the "fixed"
+   (which is the distance at which collisions will occur) and the "fixed"
    distance, which is the distance at which things start to look really bad.
    We arrange things so that the fixed distance will be attained when the
    line is compressed with a force of 1.0 */
 Spring
 Staff_spacing::get_spacing (Grob *me, Grob *right_col)
 {
-  Grob *separation_item = 0;
   Item *me_item = dynamic_cast<Item *> (me);
-
-  extract_grob_set (me, "left-items", items);
-  for (vsize i = items.size (); i--;)
-    {
-      Grob *cand = items[i];
-      if (cand && Separation_item::has_interface (cand))
-       separation_item = cand;
-    }
-
-  //  printf ("doing col %d\n" , Paper_column::get_rank (left_col));
-  if (!separation_item)
-    {
-      programming_error ("no sep item");
-      return Spring ();
-    }
+  Grob *left_col = me_item->get_column ();
 
   Interval last_ext;
-  Grob *last_grob = Separation_item::extremal_break_aligned_grob (separation_item, RIGHT,
-                                                                 &last_ext);
+  Direction break_dir = me_item->break_status_dir ();
+  Grob *last_grob = Spacing_interface::extremal_break_aligned_grob (me, LEFT,
+                                                                   break_dir,
+                                                                   &last_ext);
   if (!last_grob)
     {
       /*
@@ -197,7 +184,7 @@ Staff_spacing::get_spacing (Grob *me, Grob *right_col)
       ideal = fixed;
     }
 
-  Grob *left_col = dynamic_cast<Item*> (me)->get_column ();
+
   Real optical_correction = next_notes_correction (me, last_grob);
   Real min_dist = Paper_column::minimum_distance (left_col, right_col);
 
@@ -209,7 +196,7 @@ Staff_spacing::get_spacing (Grob *me, Grob *right_col)
   ideal += correction;
 
   Spring ret (ideal, min_dist);
-  ret.set_inverse_stretch_strength (ideal - fixed);
+  ret.set_inverse_stretch_strength (max (0.0, ideal - fixed));
   return ret;
 }