List of usage examples for org.jfree.data.extension DatasetSelectionExtension isSelected
public boolean isSelected(CURSOR cursor);
From source file:org.jfree.chart.demo.selection.SelectionDemo7ScatterRenderer.java
/** * Creates a chart./* www . j a v a2 s .c o m*/ * * @param dataset the dataset. * * @return A chart. */ private static JFreeChart createChart(final MultiValueCategoryDataset dataset, final DatasetSelectionExtension<CategoryCursor<String, String>> ext) { ScatterRenderer r = new ScatterRenderer(); CategoryPlot plot = new CategoryPlot(dataset, new CategoryAxis("Category"), new NumberAxis("Value"), r); plot.setBackgroundColor(Color.LIGHT_GRAY); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); plot.setAxisOffset(new RectangleInsets(4, 4, 4, 4)); JFreeChart chart = new JFreeChart("ScatterRendererDemo1", plot); ChartUtilities.applyCurrentTheme(chart); //register the plot ext.addChangeListener(plot); //illustrates the usage of a shape item rendering strategy final CategoryCursor<String, String> cursor = new CategoryCursor<String, String>(); r.setShapeIRS(new DefaultShapeIRS(r) { private static final long serialVersionUID = 1L; @Override public Shape getItemShape(int row, int column) { cursor.setPosition((String) dataset.getRowKey(row), (String) dataset.getColumnKey(column)); if (ext.isSelected(cursor)) { return new Rectangle2D.Double(-10.0, -10.0, 20.0, 20.0); } else { return super.getItemShape(row, column); } } }); return chart; }