import org.knowm.xchart.XYChartBuilder

object Chart
{
    def main(args: Array[String]):Unit=
    {
        import org.knowm.xchart.XChartPanel
        import org.knowm.xchart.XYSeries.XYSeriesRenderStyle
        import org.knowm.xchart.style.Styler.LegendPosition
        import javax.swing.JFrame
        import javax.swing.JLabel
        import javax.swing.SwingConstants
        import java.awt.BorderLayout

        val chart = new XYChartBuilder().width(600).height(400).title("Area Chart").xAxisTitle("X").yAxisTitle("Y").build

        // Customize Chart
        chart.getStyler.setLegendPosition(LegendPosition.InsideNE)
        chart.getStyler.setDefaultSeriesRenderStyle(XYSeriesRenderStyle.Area)

        // Series
        chart.addSeries("a", Array[Double](0, 3, 5, 7, 9), Array[Double](-3, 5, 9, 6, 5))
        chart.addSeries("b", Array[Double](0, 2, 4, 6, 9), Array[Double](-1, 6, 4, 0, 4))
        chart.addSeries("c", Array[Double](0, 1, 3, 8, 9), Array[Double](-2, -1, 1, 0, 1))

        // Schedule a job for the event-dispatching thread:
        // creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            override def run(): Unit = { // Create and set up the window.
                val frame = new JFrame("Advanced Example")
                frame.setLayout(new BorderLayout)
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)
                // chart
                val chartPanel = new XChartPanel(chart)
                frame.add(chartPanel, BorderLayout.CENTER)
                // label
                val label = new JLabel("Blah blah blah.", SwingConstants.CENTER)
                frame.add(label, BorderLayout.SOUTH)
                // Display the window.
                frame.pack()
                frame.setVisible(true)
            }
        })
    }
}