thermometerdemo1.java

jfreechart1.0.6源程序,没有注释,不过都能运行起来

package demo;

import java.awt.*;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.ThermometerPlot;
import org.jfree.data.general.DefaultValueDataset;
import org.jfree.data.general.ValueDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RectangleInsets;

public class ThermometerDemo1 extends ApplicationFrame
{
    static class ContentPanel extends JPanel
        implements ChangeListener
    {

        private static JFreeChart createChart(ValueDataset valuedataset)
        {
            ThermometerPlot thermometerplot = new ThermometerPlot(valuedataset);
            JFreeChart jfreechart = new JFreeChart("Thermometer Demo 1", JFreeChart.DEFAULT_TITLE_FONT, thermometerplot, true);
            thermometerplot.setInsets(new RectangleInsets(5D, 5D, 5D, 5D));
            thermometerplot.setPadding(new RectangleInsets(10D, 10D, 10D, 10D));
            thermometerplot.setThermometerStroke(new BasicStroke(2.0F));
            thermometerplot.setThermometerPaint(Color.lightGray);
            thermometerplot.setUnits(1);
            return jfreechart;
        }

        public void stateChanged(ChangeEvent changeevent)
        {
            dataset.setValue(new Integer(slider.getValue()));
        }

        JSlider slider;
        DefaultValueDataset dataset;

        public ContentPanel()
        {
            super(new BorderLayout());
            slider = new JSlider(0, 100, 50);
            slider.setPaintLabels(true);
            slider.setPaintTicks(true);
            slider.setMajorTickSpacing(25);
            slider.addChangeListener(this);
            add(slider, "South");
            dataset = new DefaultValueDataset(slider.getValue());
            add(new ChartPanel(createChart(dataset)));
        }
    }


    public ThermometerDemo1(String s)
    {
        super(s);
        JPanel jpanel = createDemoPanel();
        setContentPane(jpanel);
    }

    public static JPanel createDemoPanel()
    {
        return new ContentPanel();
    }

    public static void main(String args[])
    {
        ThermometerDemo1 thermometerdemo1 = new ThermometerDemo1("Thermometer Demo 1");
        thermometerdemo1.pack();
        thermometerdemo1.setVisible(true);
    }
}