@Override
  public void init(P presenter) {
    super.setPresenter(presenter);
    super.setVisualization(container);

    container.add(titleHtml);
    container.add(filterPanel);
    container.add(displayerPanel);

    filterPanel.getElement().setAttribute("cellpadding", "2");
  }
 @Override
 public void clear() {
   super.clear();
   ChartJsRenderer.closeDisplayer(getPresenter());
 }