ValueAxis xAxis = getDomainAxisForDataset(index);
ValueAxis yAxis = getRangeAxisForDataset(index);
if (xAxis == null || yAxis == null) {
return foundData; // can't render anything without axes
}
XYItemRenderer renderer = getRenderer(index);
if (renderer == null) {
renderer = getRenderer();
if (renderer == null) { // no default renderer available
return foundData;
}
}
XYItemRendererState state = renderer.initialise(g2, dataArea, this,
dataset, info);
int passCount = renderer.getPassCount();
SeriesRenderingOrder seriesOrder = getSeriesRenderingOrder();
if (seriesOrder == SeriesRenderingOrder.REVERSE) {
//render series in reverse order
for (int pass = 0; pass < passCount; pass++) {
int seriesCount = dataset.getSeriesCount();
for (int series = seriesCount - 1; series >= 0; series--) {
int firstItem = 0;
int lastItem = dataset.getItemCount(series) - 1;
if (lastItem == -1) {
continue;
}
if (state.getProcessVisibleItemsOnly()) {
int[] itemBounds = RendererUtilities.findLiveItems(
dataset, series, xAxis.getLowerBound(),
xAxis.getUpperBound());
firstItem = Math.max(itemBounds[0] - 1, 0);
lastItem = Math.min(itemBounds[1] + 1, lastItem);
}
state.startSeriesPass(dataset, series, firstItem,
lastItem, pass, passCount);
for (int item = firstItem; item <= lastItem; item++) {
renderer.drawItem(g2, state, dataArea, info,
this, xAxis, yAxis, dataset, series, item,
crosshairState, pass);
}
state.endSeriesPass(dataset, series, firstItem,
lastItem, pass, passCount);
}
}
}
else {
//render series in forward order
for (int pass = 0; pass < passCount; pass++) {
int seriesCount = dataset.getSeriesCount();
for (int series = 0; series < seriesCount; series++) {
int firstItem = 0;
int lastItem = dataset.getItemCount(series) - 1;
if (state.getProcessVisibleItemsOnly()) {
int[] itemBounds = RendererUtilities.findLiveItems(
dataset, series, xAxis.getLowerBound(),
xAxis.getUpperBound());
firstItem = Math.max(itemBounds[0] - 1, 0);
lastItem = Math.min(itemBounds[1] + 1, lastItem);
}
state.startSeriesPass(dataset, series, firstItem,
lastItem, pass, passCount);
for (int item = firstItem; item <= lastItem; item++) {
renderer.drawItem(g2, state, dataArea, info,
this, xAxis, yAxis, dataset, series, item,
crosshairState, pass);
}
state.endSeriesPass(dataset, series, firstItem,
lastItem, pass, passCount);