public void setNewPieChartModel() {
ChartModel model = new ChartModel(valueLabel + " by " + groupLabel, chartTitleStyle);
model.setBackgroundColour("#fefaee");
model.setLegend(new Legend(Position.TOP, true));
model.setScaleProvider(ScaleProvider.ROUNDED_NEAREST_SCALE_PROVIDER);
// BarChart bar = new BarChart(BarStyle.GLASS);
// bar.setColour("#ff0000");
// bar.setAnimateOnShow(true);
// BarDataProvider barProvider = new BarDataProvider("dollarValue", "productCode");
// barProvider.bind(gridStore);
// bar.setDataProvider(barProvider);
// model.addChartConfig(bar);
PieChart pie = new PieChart();
pie.setColours(chartColors);
PieDataProvider pieProvider =
new PieDataProvider(valueCol, groupCol) {
@Override
public void populateData(ChartConfig config) {
PieChart chart = (PieChart) config;
chart.getValues().clear();
TreeMap<String, Number> valueMap = new TreeMap<String, Number>();
TreeMap<String, String> textMap = new TreeMap<String, String>();
for (ModelData m : store.getModels()) {
Number n = (valueCol == null || valueCol.equals("count")) ? 1 : getValue(m);
String label = getLabel(m);
String text = getText(m);
if (text == null || text.length() == 0) text = label;
textMap.put(label, text);
if (valueMap.containsKey(label))
valueMap.put(
label, new Double(valueMap.get(label).doubleValue() + n.doubleValue()));
else valueMap.put(label, n);
}
for (String label : valueMap.keySet()) {
chart.addSlices(new Slice(valueMap.get(label), label, textMap.get(label)));
}
}
};
pieProvider.setTextProperty(labelCol);
pieProvider.bind(store);
pie.setDataProvider(pieProvider);
model.addChartConfig(pie);
chart.setChartModel(model);
}
public void redoChart(PieChart pieChart) {
pieChart.getModel().setTitle(new Text(valueLabel + " by " + groupLabel, chartTitleStyle));
PieDataProvider provider = (PieDataProvider) pieChart.getDataProvider();
provider.setLabelProperty(groupCol);
provider.setValueProperty(valueCol);
provider.setTextProperty(labelCol);
provider.bind(store);
provider.populateData(pieChart);
}