Method layer_snapshot

src/laybasic/laybasic/layLayoutViewBase.cc:5782–5794

}

LayerState 
LayoutViewBase::layer_snapshot () const
{
  LayerState state;
  LayerPropertiesConstIterator l = begin_layers ();
  while (! l.at_end ()) {
    if (! l->has_children ()) {
      state.present.insert (l->source (true /*real*/));
    }
    ++l;
  }
  return state;
}

void
LayoutViewBase::current_layer_changed_slot (const lay::LayerPropertiesConstIterator &iter)