@Override
public Widget asWidget() {
final ListStore<Data> store = new ListStore<Data>(dataAccess.nameKey());
store.addAll(TestData.getData(12, 20, 100));
final Chart<Data> chart = new Chart<Data>();
chart.setStore(store);
chart.setShadowChart(true);
NumericAxis<Data> axis = new NumericAxis<Data>();
axis.setPosition(Position.BOTTOM);
axis.addField(dataAccess.data1());
axis.addField(dataAccess.data2());
axis.addField(dataAccess.data3());
TextSprite title = new TextSprite("Number of Hits");
title.setFontSize(18);
axis.setTitleConfig(title);
axis.setDisplayGrid(true);
axis.setMinimum(0);
axis.setMaximum(100);
chart.addAxis(axis);
CategoryAxis<Data, String> catAxis = new CategoryAxis<Data, String>();
catAxis.setPosition(Position.LEFT);
catAxis.setField(dataAccess.name());
title = new TextSprite("Month of the Year");
title.setFontSize(18);
catAxis.setTitleConfig(title);
chart.addAxis(catAxis);
final BarSeries<Data> bar = new BarSeries<Data>();
bar.setYAxisPosition(Position.BOTTOM);
bar.addYField(dataAccess.data1());
bar.addYField(dataAccess.data2());
bar.addYField(dataAccess.data3());
bar.addColor(new RGB(148, 174, 10));
bar.addColor(new RGB(17, 95, 166));
bar.addColor(new RGB(166, 17, 32));
chart.addSeries(bar);
final Legend<Data> legend = new Legend<Data>();
legend.setPosition(Position.RIGHT);
legend.setItemHighlighting(true);
legend.setItemHiding(true);
chart.setLegend(legend);
TextButton regenerate = new TextButton("Reload Data");
regenerate.addSelectHandler(
new SelectHandler() {
@Override
public void onSelect(SelectEvent event) {
store.clear();
store.addAll(TestData.getData(12, 0, 100));
chart.redrawChart();
}
});
ToggleButton animation = new ToggleButton("Animate");
animation.addValueChangeHandler(
new ValueChangeHandler<Boolean>() {
@Override
public void onValueChange(ValueChangeEvent<Boolean> event) {
chart.setAnimated(event.getValue());
}
});
animation.setValue(true, true);
ToggleButton shadow = new ToggleButton("Shadow");
shadow.addValueChangeHandler(
new ValueChangeHandler<Boolean>() {
@Override
public void onValueChange(ValueChangeEvent<Boolean> event) {
chart.setShadowChart(event.getValue());
chart.redrawChart();
}
});
shadow.setValue(true);
ToolBar toolBar = new ToolBar();
toolBar.add(regenerate);
toolBar.add(animation);
toolBar.add(shadow);
ContentPanel panel = new FramedPanel();
panel.getElement().getStyle().setMargin(10, Unit.PX);
panel.setCollapsible(true);
panel.setHeadingText("Grouped Bar Chart");
panel.setPixelSize(620, 500);
panel.setBodyBorder(true);
final Resizable resize = new Resizable(panel, Dir.E, Dir.SE, Dir.S);
resize.setMinHeight(400);
resize.setMinWidth(400);
panel.addExpandHandler(
new ExpandHandler() {
@Override
public void onExpand(ExpandEvent event) {
resize.setEnabled(true);
}
});
panel.addCollapseHandler(
new CollapseHandler() {
@Override
public void onCollapse(CollapseEvent event) {
resize.setEnabled(false);
}
});
new Draggable(panel, panel.getHeader()).setUseProxy(false);
VerticalLayoutContainer layout = new VerticalLayoutContainer();
panel.add(layout);
toolBar.setLayoutData(new VerticalLayoutData(1, -1));
layout.add(toolBar);
chart.setLayoutData(new VerticalLayoutData(1, 1));
layout.add(chart);
return panel;
}
