/**
* Adds a series, plus a (possibly null) SeriesChangeListener which will receive a <i>single</i>
* event if/when the series is deleted from the chart by the user. Returns the series attributes.
*/
public SeriesAttributes addSeries(Collection objs, String name, SeriesChangeListener stopper) {
int i = getSeriesCount();
// need to have added the dataset BEFORE calling this since it'll try to change the name of the
// series
PieChartSeriesAttributes csa = buildNewAttributes(name, stopper);
// set information
csa.setElements(new ArrayList(objs));
seriesAttributes.add(csa);
revalidate(); // display the new series panel
update();
// won't update properly unless I force it here by letting all the existing scheduled events to
// go through. Dumb design. :-(
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
update();
}
});
return csa;
}
protected void update() {
// We have to rebuild the dataset from scratch (deleting and replacing it) because JFreeChart's
// piechart facility doesn't have a way to move series. Just like the histogram system: stupid
// stupid stupid.
SeriesAttributes[] sa = getSeriesAttributes();
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
for (int i = 0; i < sa.length; i++)
if (sa[i].isPlotVisible()) {
PieChartSeriesAttributes attributes = (PieChartSeriesAttributes) (sa[i]);
Object[] elements = attributes.getElements();
double[] values = null;
String[] labels = null;
if (elements != null) {
HashMap map = convertIntoAmountsAndLabels(elements);
labels = revisedLabels(map);
values = amounts(map, labels);
} else {
values = attributes.getValues();
labels = attributes.getLabels();
}
UniqueString seriesName = new UniqueString(attributes.getSeriesName());
for (int j = 0; j < values.length; j++)
dataset.addValue(values[j], labels[j], seriesName); // ugh
}
setSeriesDataset(dataset);
}
public void updateSeries(int index, Object[] objs) {
if (index < 0) // this happens when we're a dead chart but the inspector doesn't know
return;
if (index
>= getNumSeriesAttributes()) // this can happen when we close a window if we use the
// Histogram in a display
return;
PieChartSeriesAttributes hsa = (PieChartSeriesAttributes) (getSeriesAttribute(index));
hsa.setElements((Object[]) (objs.clone()));
}
public void updateSeries(int index, double[] amounts, String[] labels) {
if (index < 0) // this happens when we're a dead chart but the inspector doesn't know
return;
if (index
>= getNumSeriesAttributes()) // this can happen when we close a window if we use the
// Histogram in a display
return;
PieChartSeriesAttributes hsa = (PieChartSeriesAttributes) (getSeriesAttribute(index));
hsa.setValues((double[]) (amounts.clone()));
hsa.setLabels((String[]) (labels.clone()));
}