Example usage for org.jfree.chart.event AxisChangeEvent getSource

Introduction

In this page you can find the example usage for org.jfree.chart.event AxisChangeEvent getSource.

Prototype

public Object getSource() 

Source Link

Document

The object on which the Event initially occurred.

Usage

From source file:org.fhcrc.cpl.viewer.gui.SpectrumChartFactory.java

protected static XYPlot createXYPlot(XYDataset dataset, Color[] colors) {
    // break up into two datasets, one for bars one for lines
    //LinkedList lines =new LinkedList();
    //LinkedList bars = new LinkedList();
    XYDataset seriesLines = new XYSeriesCollection();
    XYDataset seriesBars = new XYSeriesCollection();
    ((XYSeriesCollection) seriesBars).setIntervalWidth(0.0);

    if (dataset instanceof XYSeriesCollection) {
        while (0 < dataset.getSeriesCount()) {
            XYSeries s = ((XYSeriesCollection) dataset).getSeries(0);
            ((XYSeriesCollection) dataset).removeSeries(0);
            Comparable key = s.getKey();
            boolean lines = false;
            if (key instanceof String)
                lines = ((String) key).startsWith("-");
            if (lines)
                ((XYSeriesCollection) seriesLines).addSeries(s);
            else/*from   w  ww  . ja v a2  s. co  m*/
                ((XYSeriesCollection) seriesBars).addSeries(s);
        }
    } else {
        seriesBars = dataset;
    }

    NumberAxis axisDomain = new NumberAxis();
    axisDomain.setAutoRange(true);
    axisDomain.setAutoRangeIncludesZero(false);
    //      axisDomain.setRange(400.0, 1600.0);
    // NOTE: zooming in too far kills the chart, prevent this
    axisDomain.addChangeListener(new AxisChangeListener() {
        public void axisChanged(AxisChangeEvent event) {
            NumberAxis axis = (NumberAxis) event.getSource();
            Range range = axis.getRange();
            if (range.getLength() < 2.0) {
                //_log.info("AxisChangeListener " + range.getLength() + " " + range.toString());
                double middle = range.getLowerBound() + range.getLength() / 2.0;
                axis.setRange(new Range(middle - 1.1, middle + 1.1));
            }
        }
    });

    NumberAxis axisRange = new NumberAxis();
    axisRange.setAutoRange(true);
    axisRange.setAutoRangeIncludesZero(true);

    XYToolTipGenerator toolTipGenerator = new XYToolTipGenerator() {
        public String generateToolTip(XYDataset xyDataset, int s, int i) {
            double X = Math.round(xyDataset.getXValue(s, i) * 1000.0) / 1000.0;
            double Y = Math.round(xyDataset.getYValue(s, i) * 1000.0) / 1000.0;
            return "(" + X + ", " + Y + ")";
        }
    };

    XYBarRenderer barRenderer = new XYBarRenderer();
    //dhmay adding 2009/09/14.  As of jfree 1.0.13, shadows on by default        
    barRenderer.setShadowVisible(false);

    //dhmay adding for jfreechart 1.0.6 upgrade.  If this isn't here, we get a
    //nullPointerException in XYBarRenderer.drawItemLabel
    barRenderer.setBaseItemLabelGenerator(new NullLabelGenerator());

    barRenderer.setSeriesItemLabelsVisible(0, true);
    barRenderer.setBaseToolTipGenerator(toolTipGenerator);

    XYLineAndShapeRenderer lineRenderer = new XYLineAndShapeRenderer();
    lineRenderer.setBaseToolTipGenerator(toolTipGenerator);

    XYPlot xy = new XYPlot(null, axisDomain, axisRange, null);

    int ds = 0;
    if (seriesLines.getSeriesCount() > 0) {
        xy.setDataset(ds, seriesLines);
        xy.setRenderer(ds, lineRenderer);
        xy.mapDatasetToRangeAxis(ds, 0);
        ds++;
        for (int i = 0; i < seriesLines.getSeriesCount(); i++) {
            Comparable key = ((XYSeriesCollection) seriesLines).getSeriesKey(i);
            boolean lines = false;
            if (key instanceof String)
                lines = ((String) key).startsWith("-");
            lineRenderer.setSeriesLinesVisible(i, lines);
            lineRenderer.setSeriesShapesVisible(i, !lines);
        }
    }
    if (seriesBars.getSeriesCount() > 0) {
        xy.setDataset(ds, seriesBars);
        xy.setRenderer(ds, barRenderer);
        xy.mapDatasetToRangeAxis(ds, 0);
        ds++;
    }

    setColors(xy, colors);

    return xy;
}

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