getFilterPanelContainer(), this, filter.eventFilter, resources,
visualization.getModel());
// Add a ButtonDescription entry for the control that will open/close the
// EventFilterPanel.
visualization.addButton(new ButtonDescription("Open/Close Filter Panel",
resources.sluggishnessFiletPanelCss().filterPanelButton(),
new ClickListener() {
public void onClick(ClickEvent event) {
eventFilterPanel.refresh(visualization.getModel());
toggleFilterPanelVisible();