- me->set_property ("positioning-done", SCM_BOOL_T);
-
- SCM d = me->get_property ("stacking-dir");
+ /* each child's skyline was calculated according to the common refpoint of its
+ elements. Here we need all the skylines to be positioned with respect to
+ a single refpoint, so we need the common refpoint of the common refpoints
+ of the elements of the children */
+ vector<Grob*> child_refpoints;
+ for (vsize i = 0; i < elements->size (); i++)
+ {
+ Grob *elt = (*elements)[i];
+ Grob *child_common = unsmob_grob ((a == Y_AXIS)
+ ? elt->get_object ("X-common")
+ : elt->get_object ("Y-common"));
+
+ if (!child_common)
+ {
+ extract_grob_set (elt, "elements", child_elts);
+ child_common = common_refpoint_of_array (child_elts, elt, other_axis (a));
+ }
+
+ child_refpoints.push_back (child_common);
+ }
+ Grob *common_refpoint = common_refpoint_of_array (child_refpoints, me, other_axis (a));
+
+ for (vsize i = elements->size (); i--;)
+ {
+ Grob *g = (*elements)[i];
+ Skyline_pair skylines;