@Override
public ChartView.Element getElementAt(int x, int y) {
ChartView.Element element = new ChartView.Element(0, 0);
ChartEntity chartEntity = getChartEntityAt(x, y);
if (chartEntity instanceof CategoryItemEntity) {
CategoryItemEntity categoryItemEntity = (CategoryItemEntity) chartEntity;
CategoryDataset dataset = categoryItemEntity.getDataset();
String columnKey = (String) categoryItemEntity.getColumnKey();
int columnIndex = dataset.getColumnIndex(columnKey);
String rowKey = (String) categoryItemEntity.getRowKey();
int rowIndex = dataset.getRowIndex(rowKey);
element = new ChartView.Element(rowIndex, columnIndex);
} else if (chartEntity instanceof XYItemEntity) {
XYItemEntity xyItemEntity = (XYItemEntity) chartEntity;
element = new ChartView.Element(xyItemEntity.getSeriesIndex(), xyItemEntity.getItem());
}
return element;
}
/**
* Returns the middle coordinate (in Java2D space) for a series within a category.
*
* @param category the category (<code>null</code> not permitted).
* @param seriesKey the series key (<code>null</code> not permitted).
* @param dataset the dataset (<code>null</code> not permitted).
* @param itemMargin the item margin (0.0 <= itemMargin < 1.0);
* @param area the area (<code>null</code> not permitted).
* @param edge the edge (<code>null</code> not permitted).
* @return The coordinate in Java2D space.
* @since 1.0.7
*/
public double getCategorySeriesMiddle(
Comparable category,
Comparable seriesKey,
CategoryDataset dataset,
double itemMargin,
Rectangle2D area,
RectangleEdge edge) {
int categoryIndex = dataset.getColumnIndex(category);
int categoryCount = dataset.getColumnCount();
int seriesIndex = dataset.getRowIndex(seriesKey);
int seriesCount = dataset.getRowCount();
double start = getCategoryStart(categoryIndex, categoryCount, area, edge);
double end = getCategoryEnd(categoryIndex, categoryCount, area, edge);
double width = end - start;
if (seriesCount == 1) {
return start + width / 2.0;
}
double gap = (width * itemMargin) / (seriesCount - 1);
double ww = (width * (1 - itemMargin)) / seriesCount;
return start + (seriesIndex * (ww + gap)) + ww / 2.0;
}
/**
* Draws a marker for the domain axis.
*
* @param g2 the graphics device (not <code>null</code>).
* @param plot the plot (not <code>null</code>).
* @param axis the range axis (not <code>null</code>).
* @param marker the marker to be drawn (not <code>null</code>).
* @param dataArea the area inside the axes (not <code>null</code>).
*/
public void drawDomainMarker(
Graphics2D g2,
CategoryPlot plot,
CategoryAxis axis,
CategoryMarker marker,
Rectangle2D dataArea) {
Comparable category = marker.getKey();
CategoryDataset dataset = plot.getDataset(plot.getIndexOf(this));
int columnIndex = dataset.getColumnIndex(category);
if (columnIndex < 0) {
return;
}
PlotOrientation orientation = plot.getOrientation();
Rectangle2D bounds = null;
if (marker.getDrawAsLine()) {
double v =
axis.getCategoryMiddle(
columnIndex, dataset.getColumnCount(),
dataArea, plot.getDomainAxisEdge());
Line2D line = null;
if (orientation == PlotOrientation.HORIZONTAL) {
line = new Line2D.Double(dataArea.getMinX(), v, dataArea.getMaxX(), v);
} else if (orientation == PlotOrientation.VERTICAL) {
line = new Line2D.Double(v, dataArea.getMinY(), v, dataArea.getMaxY());
}
g2.setPaint(marker.getPaint());
g2.setStroke(marker.getStroke());
g2.draw(line);
bounds = line.getBounds2D();
} else {
double v0 =
axis.getCategoryStart(
columnIndex, dataset.getColumnCount(),
dataArea, plot.getDomainAxisEdge());
double v1 =
axis.getCategoryEnd(
columnIndex, dataset.getColumnCount(),
dataArea, plot.getDomainAxisEdge());
Rectangle2D area = null;
if (orientation == PlotOrientation.HORIZONTAL) {
area = new Rectangle2D.Double(dataArea.getMinX(), v0, dataArea.getWidth(), (v1 - v0));
} else if (orientation == PlotOrientation.VERTICAL) {
area = new Rectangle2D.Double(v0, dataArea.getMinY(), (v1 - v0), dataArea.getHeight());
}
g2.setPaint(marker.getPaint());
g2.fill(area);
bounds = area;
}
String label = marker.getLabel();
RectangleAnchor anchor = marker.getLabelAnchor();
if (label != null) {
Font labelFont = marker.getLabelFont();
g2.setFont(labelFont);
g2.setPaint(marker.getLabelPaint());
Point2D coordinates =
calculateDomainMarkerTextAnchorPoint(
g2,
orientation,
dataArea,
bounds,
marker.getLabelOffset(),
marker.getLabelOffsetType(),
anchor);
TextUtilities.drawAlignedString(
label,
g2,
(float) coordinates.getX(),
(float) coordinates.getY(),
marker.getLabelTextAnchor());
}
}
