public Canvas getViewPanel() {
DataSource worldDS = WorldXmlDS.getInstance();
final FilterBuilder filterBuilder = new FilterBuilder();
filterBuilder.setDataSource(worldDS);
filterBuilder.setTopOperatorAppearance(TopOperatorAppearance.RADIO);
final ListGrid countryGrid = new ListGrid();
countryGrid.setWidth(550);
countryGrid.setHeight(224);
countryGrid.setDataSource(worldDS);
countryGrid.setAutoFetchData(true);
ListGridField nameField = new ListGridField("countryName", "Country");
ListGridField continentField = new ListGridField("continent", "Continent");
ListGridField memberG8Field = new ListGridField("member_g8", "Member G8");
memberG8Field.setCanEdit(false);
ListGridField populationField = new ListGridField("population", "Population");
populationField.setType(ListGridFieldType.INTEGER);
populationField.setCellFormatter(new CellFormatter() {
public String format(Object value, ListGridRecord record, int rowNum, int colNum) {
if(value == null) return null;
try {
NumberFormat nf = NumberFormat.getFormat("0,000");
return nf.format(((Number) value).longValue());
} catch (Exception e) {
return value.toString();
}
}
});
ListGridField independenceField = new ListGridField("independence", "Independence");
countryGrid.setFields(nameField,continentField, memberG8Field, populationField, independenceField);
IButton filterButton = new IButton("Filter");
filterButton.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
countryGrid.filterData(filterBuilder.getCriteria());
}
});
VStack vStack = new VStack(10);
vStack.addMember(filterBuilder);