linechartdemo1.java

jfreechart 1.0.6 demo 源代码

package demo;

import java.awt.*;
import java.awt.geom.Ellipse2D;
import javax.swing.ImageIcon;
import javax.swing.JPanel;
import org.jfree.chart.*;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.*;

public class LineChartDemo1 extends ApplicationFrame
{

    public LineChartDemo1(String s)
    {
        super(s);
        JPanel jpanel = createDemoPanel();
        jpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(jpanel);
    }

    private static CategoryDataset createDataset()
    {
        DefaultCategoryDataset defaultcategorydataset = new DefaultCategoryDataset();
        defaultcategorydataset.addValue(212D, "Classes", "JDK 1.0");
        defaultcategorydataset.addValue(504D, "Classes", "JDK 1.1");
        defaultcategorydataset.addValue(1520D, "Classes", "JDK 1.2");
        defaultcategorydataset.addValue(1842D, "Classes", "JDK 1.3");
        defaultcategorydataset.addValue(2991D, "Classes", "JDK 1.4");
        defaultcategorydataset.addValue(3500D, "Classes", "JDK 1.5");
        return defaultcategorydataset;
    }

    private static JFreeChart createChart(CategoryDataset categorydataset)
    {
        JFreeChart jfreechart = ChartFactory.createLineChart("Java Standard Class Library", null, "Class Count", categorydataset, PlotOrientation.VERTICAL, false, true, false);
        jfreechart.addSubtitle(new TextTitle("Number of Classes By Release"));
        TextTitle texttitle = new TextTitle("Source: Java In A Nutshell (5th Edition) by David Flanagan (O'Reilly)");
        texttitle.setFont(new Font("SansSerif", 0, 10));
        texttitle.setPosition(RectangleEdge.BOTTOM);
        texttitle.setHorizontalAlignment(HorizontalAlignment.RIGHT);
        jfreechart.addSubtitle(texttitle);
        jfreechart.setBackgroundPaint(Color.white);
        CategoryPlot categoryplot = (CategoryPlot)jfreechart.getPlot();
        categoryplot.setBackgroundPaint(Color.lightGray);
        categoryplot.setRangeGridlinesVisible(false);
        java.net.URL url = (demo.LineChartDemo1.class).getClassLoader().getResource("OnBridge11small.png");
        if(url != null)
        {
            ImageIcon imageicon = new ImageIcon(url);
            jfreechart.setBackgroundImage(imageicon.getImage());
            categoryplot.setBackgroundPaint(new Color(0, 0, 0, 0));
        }
        NumberAxis numberaxis = (NumberAxis)categoryplot.getRangeAxis();
        numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
        LineAndShapeRenderer lineandshaperenderer = (LineAndShapeRenderer)categoryplot.getRenderer();
        lineandshaperenderer.setShapesVisible(true);
        lineandshaperenderer.setDrawOutlines(true);
        lineandshaperenderer.setUseFillPaint(true);
        lineandshaperenderer.setBaseFillPaint(Color.white);
        lineandshaperenderer.setSeriesStroke(0, new BasicStroke(3F));
        lineandshaperenderer.setSeriesOutlineStroke(0, new BasicStroke(2.0F));
        lineandshaperenderer.setSeriesShape(0, new java.awt.geom.Ellipse2D.Double(-5D, -5D, 10D, 10D));
        return jfreechart;
    }

    public static JPanel createDemoPanel()
    {
        JFreeChart jfreechart = createChart(createDataset());
        return new ChartPanel(jfreechart);
    }

    public static void main(String args[])
    {
        LineChartDemo1 linechartdemo1 = new LineChartDemo1("JFreeChart - Line Chart Demo 1");
        linechartdemo1.pack();
        RefineryUtilities.centerFrameOnScreen(linechartdemo1);
        linechartdemo1.setVisible(true);
    }
}