/**
* Draw a single data item.
*
* @param g2 the graphics device.
* @param state the renderer state.
* @param dataArea the area in which the data is drawn.
* @param plot the plot.
* @param domainAxis the domain axis.
* @param rangeAxis the range axis.
* @param dataset the dataset (a {@link StatisticalCategoryDataset} is required).
* @param row the row index (zero-based).
* @param column the column index (zero-based).
* @param pass the pass.
*/
@Override
public void drawItem(
Graphics2D g2,
CategoryItemRendererState state,
Rectangle2D dataArea,
CategoryPlot plot,
CategoryAxis domainAxis,
ValueAxis rangeAxis,
CategoryDataset dataset,
int row,
int column,
int pass) {
// do nothing if item is not visible
if (!getItemVisible(row, column)) {
return;
}
// if the dataset is not a StatisticalCategoryDataset then just revert
// to the superclass (LineAndShapeRenderer) behaviour...
if (!(dataset instanceof StatisticalCategoryDataset)) {
super.drawItem(g2, state, dataArea, plot, domainAxis, rangeAxis, dataset, row, column, pass);
return;
}
int visibleRow = state.getVisibleSeriesIndex(row);
if (visibleRow < 0) {
return;
}
int visibleRowCount = state.getVisibleSeriesCount();
StatisticalCategoryDataset statDataset = (StatisticalCategoryDataset) dataset;
Number meanValue = statDataset.getMeanValue(row, column);
if (meanValue == null) {
return;
}
PlotOrientation orientation = plot.getOrientation();
// current data point...
double x1;
if (getUseSeriesOffset()) {
x1 =
domainAxis.getCategorySeriesMiddle(
column,
dataset.getColumnCount(),
visibleRow,
visibleRowCount,
getItemMargin(),
dataArea,
plot.getDomainAxisEdge());
} else {
x1 =
domainAxis.getCategoryMiddle(
column, getColumnCount(), dataArea, plot.getDomainAxisEdge());
}
double y1 = rangeAxis.valueToJava2D(meanValue.doubleValue(), dataArea, plot.getRangeAxisEdge());
// draw the standard deviation lines *before* the shapes (if they're
// visible) - it looks better if the shape fill colour is different to
// the line colour
Number sdv = statDataset.getStdDevValue(row, column);
if (pass == 1 && sdv != null) {
// standard deviation lines
RectangleEdge yAxisLocation = plot.getRangeAxisEdge();
double valueDelta = sdv.doubleValue();
double highVal, lowVal;
if ((meanValue.doubleValue() + valueDelta) > rangeAxis.getRange().getUpperBound()) {
highVal =
rangeAxis.valueToJava2D(rangeAxis.getRange().getUpperBound(), dataArea, yAxisLocation);
} else {
highVal =
rangeAxis.valueToJava2D(meanValue.doubleValue() + valueDelta, dataArea, yAxisLocation);
}
if ((meanValue.doubleValue() + valueDelta) < rangeAxis.getRange().getLowerBound()) {
lowVal =
rangeAxis.valueToJava2D(rangeAxis.getRange().getLowerBound(), dataArea, yAxisLocation);
} else {
lowVal =
rangeAxis.valueToJava2D(meanValue.doubleValue() - valueDelta, dataArea, yAxisLocation);
}
if (this.errorIndicatorPaint != null) {
g2.setPaint(this.errorIndicatorPaint);
} else {
g2.setPaint(getItemPaint(row, column));
}
if (this.errorIndicatorStroke != null) {
g2.setStroke(this.errorIndicatorStroke);
} else {
g2.setStroke(getItemOutlineStroke(row, column));
}
Line2D line = new Line2D.Double();
if (orientation == PlotOrientation.HORIZONTAL) {
line.setLine(lowVal, x1, highVal, x1);
g2.draw(line);
line.setLine(lowVal, x1 - 5.0d, lowVal, x1 + 5.0d);
g2.draw(line);
line.setLine(highVal, x1 - 5.0d, highVal, x1 + 5.0d);
g2.draw(line);
} else { // PlotOrientation.VERTICAL
line.setLine(x1, lowVal, x1, highVal);
g2.draw(line);
line.setLine(x1 - 5.0d, highVal, x1 + 5.0d, highVal);
g2.draw(line);
line.setLine(x1 - 5.0d, lowVal, x1 + 5.0d, lowVal);
g2.draw(line);
}
}
Shape hotspot = null;
if (pass == 1 && getItemShapeVisible(row, column)) {
Shape shape = getItemShape(row, column);
if (orientation == PlotOrientation.HORIZONTAL) {
shape = ShapeUtilities.createTranslatedShape(shape, y1, x1);
} else if (orientation == PlotOrientation.VERTICAL) {
shape = ShapeUtilities.createTranslatedShape(shape, x1, y1);
}
hotspot = shape;
if (getItemShapeFilled(row, column)) {
if (getUseFillPaint()) {
g2.setPaint(getItemFillPaint(row, column));
} else {
g2.setPaint(getItemPaint(row, column));
}
g2.fill(shape);
}
if (getDrawOutlines()) {
if (getUseOutlinePaint()) {
g2.setPaint(getItemOutlinePaint(row, column));
} else {
g2.setPaint(getItemPaint(row, column));
}
g2.setStroke(getItemOutlineStroke(row, column));
g2.draw(shape);
}
// draw the item label if there is one...
if (isItemLabelVisible(row, column)) {
if (orientation == PlotOrientation.HORIZONTAL) {
drawItemLabel(
g2, orientation, dataset, row, column, y1, x1, (meanValue.doubleValue() < 0.0));
} else if (orientation == PlotOrientation.VERTICAL) {
drawItemLabel(
g2, orientation, dataset, row, column, x1, y1, (meanValue.doubleValue() < 0.0));
}
}
}
if (pass == 0 && getItemLineVisible(row, column)) {
if (column != 0) {
Number previousValue = statDataset.getValue(row, column - 1);
if (previousValue != null) {
// previous data point...
double previous = previousValue.doubleValue();
double x0;
if (getUseSeriesOffset()) {
x0 =
domainAxis.getCategorySeriesMiddle(
column - 1,
dataset.getColumnCount(),
visibleRow,
visibleRowCount,
getItemMargin(),
dataArea,
plot.getDomainAxisEdge());
} else {
x0 =
domainAxis.getCategoryMiddle(
column - 1, getColumnCount(), dataArea, plot.getDomainAxisEdge());
}
double y0 = rangeAxis.valueToJava2D(previous, dataArea, plot.getRangeAxisEdge());
Line2D line = null;
if (orientation == PlotOrientation.HORIZONTAL) {
line = new Line2D.Double(y0, x0, y1, x1);
} else if (orientation == PlotOrientation.VERTICAL) {
line = new Line2D.Double(x0, y0, x1, y1);
}
g2.setPaint(getItemPaint(row, column));
g2.setStroke(getItemStroke(row, column));
g2.draw(line);
}
}
}
if (pass == 1) {
// add an item entity, if this information is being collected
EntityCollection entities = state.getEntityCollection();
if (entities != null) {
addEntity(entities, hotspot, dataset, row, column, x1, y1);
}
}
}
