protected Widget createCurrentSelectionWidget() {
if (!displayerSettings.isFilterEnabled()) return null;
Set<String> columnFilters = filterColumns();
if (columnFilters.isEmpty()) return null;
HorizontalPanel panel = new HorizontalPanel();
panel.getElement().setAttribute("cellpadding", "2");
for (String columnId : columnFilters) {
List<Interval> selectedValues = filterIntervals(columnId);
DataColumn column = dataSet.getColumnById(columnId);
for (Interval interval : selectedValues) {
String formattedValue = formatInterval(interval, column);
panel.add(new Label(formattedValue));
}
}
Anchor anchor = new Anchor(GoogleDisplayerConstants.INSTANCE.googleDisplayer_resetAnchor());
panel.add(anchor);
anchor.addClickHandler(
new ClickHandler() {
public void onClick(ClickEvent event) {
filterReset();
// Update the chart view in order to reflect the current selection
// (only if not has already been redrawn in the previous filterUpdate() call)
if (!displayerSettings.isFilterSelfApplyEnabled()) {
updateVisualization();
}
}
});
return panel;
}
protected Widget createNoDataMsgPanel() {
return new Label(GoogleDisplayerConstants.INSTANCE.common_noData());
}