/// Repopulate the slices insets from bottom to top. Useful
/// for stable iterators or Undo data.
void sanitize();
+ ///
+ bool isInside(Inset const *) const;
+ /// make sure we are outside of given inset
+ void leaveInset(Inset const & inset);
/// find index of CursorSlice with &cell() == &cell (or -1 if not found)
int find(MathData const & cell) const;