/**
* Returns the x-value for the specified series and item.
*
* @param series the series (zero-based index).
* @param item the item (zero-based index).
* @return The x-value for the specified series and item.
*/
@Override
public Number getX(int series, int item) {
TimePeriodValues ts = (TimePeriodValues) this.data.get(series);
TimePeriodValue dp = ts.getDataItem(item);
TimePeriod period = dp.getPeriod();
return new Long(getX(period));
}
/**
* Adds a data item to the series and sends a {@link SeriesChangeEvent} to all registered
* listeners.
*
* @param item the item (<code>null</code> not permitted).
*/
public void add(TimePeriodValue item) {
if (item == null) {
throw new IllegalArgumentException("Null item not allowed.");
}
this.data.add(item);
updateBounds(item.getPeriod(), this.data.size() - 1);
fireSeriesChanged();
}
/** Recalculates the bounds for the collection of items. */
private void recalculateBounds() {
this.minStartIndex = -1;
this.minMiddleIndex = -1;
this.minEndIndex = -1;
this.maxStartIndex = -1;
this.maxMiddleIndex = -1;
this.maxEndIndex = -1;
for (int i = 0; i < this.data.size(); i++) {
TimePeriodValue tpv = (TimePeriodValue) this.data.get(i);
updateBounds(tpv.getPeriod(), i);
}
}
/**
* Returns the ending X value for the specified series and item.
*
* @param series the series (zero-based index).
* @param item the item (zero-based index).
* @return The ending X value for the specified series and item.
*/
@Override
public Number getEndX(int series, int item) {
TimePeriodValues ts = (TimePeriodValues) this.data.get(series);
TimePeriodValue dp = ts.getDataItem(item);
return new Long(dp.getPeriod().getEnd().getTime());
}
