clearSelectedEntity method

Implementation

void clearSelectedEntity() {
  List<TSelectionEntity> tmp = [];
  TSelectionEntity node = this;
  tmp.add(node);
  while (tmp.isNotEmpty) {
    node = tmp.removeLast();
    node.isSelected = false;
    for (var data in node.children) {
      tmp.add(data);
    }
  }
}