Example usage for org.jfree.chart.renderer.category CategoryItemRenderer getItemLabelGenerator

Introduction

In this page you can find the example usage for org.jfree.chart.renderer.category CategoryItemRenderer getItemLabelGenerator.

Prototype

public CategoryItemLabelGenerator getItemLabelGenerator(int series, int item);

Source Link

Document

Returns the item label generator for the specified data item.

Usage

From source file:org.jfree.eastwood.ChartEngine.java

/**
 * Adds a marker to the chart.//from www  .j  av  a  2  s  . c o  m
 *
 * @param markerStr  the string encoding of the marker.
 * @param chart  the chart to apply the marker to.
 */
private static void addMarker(String markerStr, JFreeChart chart) {
    String[] args = breakString(markerStr, ',');
    Plot p = chart.getPlot();
    Color c = parseColor(args[1]);
    if (args[0].startsWith("t")) {
        String text = args[0].substring(1);
        int dataset = Integer.parseInt(args[2]);
        int datapoint = Integer.parseInt(args[3]);
        float fontsize = Float.parseFloat(args[4]);
        if (p instanceof CategoryPlot) {
            CategoryPlot cp = (CategoryPlot) p;

            CategoryItemRenderer r = cp.getRenderer();
            GCategoryPlot.LabelGenerator label = (GCategoryPlot.LabelGenerator) r.getItemLabelGenerator(dataset,
                    datapoint);
            label.setLabel(dataset, datapoint, text);
        } else if (p instanceof XYPlot) {
            XYPlot xyp = (XYPlot) p;
            XYItemRenderer r = xyp.getRenderer();
            ((GXYPlot.LabelGenerator) r.getItemLabelGenerator(dataset, datapoint)).setLabel(dataset, datapoint,
                    text);
            //XYDataset d = xyp.getDataset();
            //XYPointerAnnotation a = new XYPointerAnnotation(text, d.getXValue(dataset, datapoint), d.getYValue(dataset, datapoint), Math.random()-2);
            //xyp.addAnnotation(a);
        }
    } else if ("r".equals(args[0])) {
        // add a range marker
        float f0 = Float.parseFloat(args[3]);
        float f1 = Float.parseFloat(args[4]);
        if (p instanceof CategoryPlot) {
            CategoryPlot cp = (CategoryPlot) p;
            Range yRange = cp.getRangeAxis().getRange();
            double r0 = yRange.getLowerBound();
            double rl = yRange.getLength();
            IntervalMarker m = new IntervalMarker(r0 + Math.min(f0, f1) * rl, r0 + Math.max(f0, f1) * rl);
            m.setPaint(c);
            cp.addRangeMarker(m, Layer.BACKGROUND);
        } else if (p instanceof XYPlot) {
            XYPlot cp = (XYPlot) p;
            Range yRange = cp.getRangeAxis().getRange();
            double r0 = yRange.getLowerBound();
            double rl = yRange.getLength();
            IntervalMarker m = new IntervalMarker(r0 + Math.min(f0, f1) * rl, r0 + Math.max(f0, f1) * rl);
            m.setPaint(c);
            cp.addRangeMarker(m, Layer.BACKGROUND);
        }

    } else if ("R".equals(args[0])) {
        // add a domain marker
        float f0 = Float.parseFloat(args[3]);
        float f1 = Float.parseFloat(args[4]);
        if (p instanceof XYPlot) {
            XYPlot xyp = (XYPlot) p;
            Range yRange = xyp.getRangeAxis().getRange();
            double r0 = yRange.getLowerBound();
            double rl = yRange.getLength();
            IntervalMarker m = new IntervalMarker(r0 + Math.min(f0, f1) * rl, r0 + Math.max(f0, f1) * rl);
            m.setPaint(c);
            xyp.addDomainMarker(m, Layer.BACKGROUND);
        }
    }
}

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