Java tutorial
package org.jfree.chart.demo; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.text.SimpleDateFormat; import javax.swing.JPanel; import javax.swing.JSlider; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.data.Range; import org.jfree.data.time.Month; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.data.xy.XYDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RectangleInsets; import org.jfree.ui.RefineryUtilities; public class CrosshairDemo3 extends ApplicationFrame { private static final long serialVersionUID = 1L; static class DemoPanel extends JPanel implements ChangeListener { private static final long serialVersionUID = 1L; private JFreeChart createChart(XYDataset xydataset) { JFreeChart jfreechart = ChartFactory.createTimeSeriesChart("Legal & General Unit Trust Prices", "Date", "Price Per Unit", xydataset, true, true, false); jfreechart.setBackgroundPaint(Color.white); XYPlot xyplot = (XYPlot) jfreechart.getPlot(); xyplot.setBackgroundPaint(Color.lightGray); xyplot.setDomainGridlinePaint(Color.white); xyplot.setRangeGridlinePaint(Color.white); xyplot.setAxisOffset(new RectangleInsets(5D, 5D, 5D, 5D)); xyplot.setDomainCrosshairVisible(true); xyplot.setDomainCrosshairLockedOnData(false); xyplot.setRangeCrosshairVisible(true); xyplot.setRangeCrosshairLockedOnData(true); org.jfree.chart.renderer.xy.XYItemRenderer xyitemrenderer = xyplot.getRenderer(); if (xyitemrenderer instanceof XYLineAndShapeRenderer) { XYLineAndShapeRenderer xylineandshaperenderer = (XYLineAndShapeRenderer) xyitemrenderer; xylineandshaperenderer.setBaseShapesVisible(true); xylineandshaperenderer.setBaseShapesFilled(true); } DateAxis dateaxis = (DateAxis) xyplot.getDomainAxis(); dateaxis.setDateFormatOverride(new SimpleDateFormat("MMM-yyyy")); return jfreechart; } private XYDataset createDataset() { TimeSeries timeseries = new TimeSeries("L&G European Index Trust"); timeseries.add(new Month(2, 2001), 181.80000000000001D); timeseries.add(new Month(3, 2001), 167.30000000000001D); timeseries.add(new Month(4, 2001), 153.80000000000001D); timeseries.add(new Month(5, 2001), 167.59999999999999D); timeseries.add(new Month(6, 2001), 158.80000000000001D); timeseries.add(new Month(7, 2001), 148.30000000000001D); timeseries.add(new Month(8, 2001), 153.90000000000001D); timeseries.add(new Month(9, 2001), 142.69999999999999D); timeseries.add(new Month(10, 2001), 123.2D); timeseries.add(new Month(11, 2001), 131.80000000000001D); timeseries.add(new Month(12, 2001), 139.59999999999999D); timeseries.add(new Month(1, 2002), 142.90000000000001D); timeseries.add(new Month(2, 2002), 138.69999999999999D); timeseries.add(new Month(3, 2002), 137.30000000000001D); timeseries.add(new Month(4, 2002), 143.90000000000001D); timeseries.add(new Month(5, 2002), 139.80000000000001D); timeseries.add(new Month(6, 2002), 137D); timeseries.add(new Month(7, 2002), 132.80000000000001D); TimeSeries timeseries1 = new TimeSeries("L&G UK Index Trust"); timeseries1.add(new Month(2, 2001), 129.59999999999999D); timeseries1.add(new Month(3, 2001), 123.2D); timeseries1.add(new Month(4, 2001), 117.2D); timeseries1.add(new Month(5, 2001), 124.09999999999999D); timeseries1.add(new Month(6, 2001), 122.59999999999999D); timeseries1.add(new Month(7, 2001), 119.2D); timeseries1.add(new Month(8, 2001), 116.5D); timeseries1.add(new Month(9, 2001), 112.7D); timeseries1.add(new Month(10, 2001), 101.5D); timeseries1.add(new Month(11, 2001), 106.09999999999999D); timeseries1.add(new Month(12, 2001), 110.3D); timeseries1.add(new Month(1, 2002), 111.7D); timeseries1.add(new Month(2, 2002), 111D); timeseries1.add(new Month(3, 2002), 109.59999999999999D); timeseries1.add(new Month(4, 2002), 113.2D); timeseries1.add(new Month(5, 2002), 111.59999999999999D); timeseries1.add(new Month(6, 2002), 108.8D); timeseries1.add(new Month(7, 2002), 101.59999999999999D); TimeSeriesCollection timeseriescollection = new TimeSeriesCollection(); timeseriescollection.addSeries(timeseries); timeseriescollection.addSeries(timeseries1); return timeseriescollection; } public void stateChanged(ChangeEvent changeevent) { int i = slider.getValue(); XYPlot xyplot = (XYPlot) chart.getPlot(); ValueAxis valueaxis = xyplot.getDomainAxis(); Range range = valueaxis.getRange(); double d = valueaxis.getLowerBound() + ((double) i / 100D) * range.getLength(); xyplot.setDomainCrosshairValue(d); } private JFreeChart chart; private JSlider slider; public DemoPanel() { super(new BorderLayout()); XYDataset xydataset = createDataset(); chart = createChart(xydataset); ChartPanel chartpanel = new ChartPanel(chart); chartpanel.setPreferredSize(new Dimension(500, 270)); chartpanel.setMouseZoomable(true, false); JPanel jpanel = new JPanel(new BorderLayout()); slider = new JSlider(0, 100, 50); slider.addChangeListener(this); jpanel.add(slider); add(chartpanel); add(jpanel, "South"); } } public CrosshairDemo3(String s) { super(s); setContentPane(new DemoPanel()); } public static JPanel createDemoPanel() { return new DemoPanel(); } public static void main(String args[]) { CrosshairDemo3 crosshairdemo3 = new CrosshairDemo3("Crosshair Demo 3"); crosshairdemo3.pack(); RefineryUtilities.centerFrameOnScreen(crosshairdemo3); crosshairdemo3.setVisible(true); } }