- Link_array<Item> dots = Pointer_group_interface__extract_elements (this, (Item*)0 , "dots");
- dots.sort (Dot_column::compare);
-
- if (dots.size () < 2)
- return SCM_UNDEFINED;
- Slice s;
- s.set_empty ();
-
- Array<int> taken_posns;
- int conflicts = 0;
- for (int i=0; i < dots.size (); i++)
+ Link_array<Grob> dots
+ = extract_grob_array (me, "dots");
+
+ { /*
+ Trigger note collision resolution first, since that may kill off
+ dots when merging.
+ */
+ Grob *c = 0;
+ for (int i = dots.size (); i--;)
+ {
+ Grob *n = dots[i]->get_parent (Y_AXIS);
+ if (c)
+ c = n->common_refpoint (c, X_AXIS);
+ else
+ c = n;
+ }
+ for (int i = dots.size (); i--;)
+ {
+ Grob *n = dots[i]->get_parent (Y_AXIS);
+ n->relative_coordinate (c, X_AXIS);
+ }
+ }
+
+ dots.sort (compare_position);
+ for (int i = dots.size (); i--;)
+ if (!dots[i]->is_live ())
+ dots.del (i);
+
+ Dot_configuration cfg;
+ for (int i = 0;i < dots.size (); i++)