edu.ucla.stat.SOCR.chart.demo.RingChartDemo1.java Source code

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Here is the source code for edu.ucla.stat.SOCR.chart.demo.RingChartDemo1.java

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package edu.ucla.stat.SOCR.chart.demo;

import java.awt.Font;
import java.beans.PropertyChangeListener;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.RingPlot;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;

import edu.ucla.stat.SOCR.chart.ChartGenerator_JTable;
import edu.ucla.stat.SOCR.chart.SuperPieChart;
import edu.ucla.stat.SOCR.chart.gui.Rotator;

/**
 * A simple demonstration application showing how to create a ring chart using 
 * data from a {@link DefaultPieDataset}.
 */
public class RingChartDemo1 extends SuperPieChart implements PropertyChangeListener {

    public void doTest() {
        JFreeChart chart;
        ChartGenerator_JTable chartMaker = new ChartGenerator_JTable();

        resetChart();
        showMessageDialog(chartTitle + " doTest get called!");

        int[][] pairs = new int[1][2];
        pairs[0][0] = 1; // value
        pairs[0][1] = 0; // name
        chart = chartMaker.getPieChart(chartTitle, dataTable, pairs, "ring");
        chartPanel = new ChartPanel(chart, false);

        setChart();
    }

    /**
     * Creates a sample dataset.
     * 
     * @return a sample dataset.
     */
    protected DefaultPieDataset createDataset(boolean isDemo) {
        if (isDemo) {
            DefaultPieDataset dataset = new DefaultPieDataset();
            dataset.setValue("One", new Double(43.2));
            dataset.setValue("Two", new Double(10.0));
            dataset.setValue("Three", new Double(27.5));
            dataset.setValue("Four", new Double(17.5));
            dataset.setValue("Five", new Double(11.0));
            dataset.setValue("Six", new Double(19.4));
            pulloutFlag = new String[6];
            for (int i = 0; i < 6; i++)
                pulloutFlag[i] = "0";
            pulloutFlag[2] = "1";
            return dataset;
        } else
            return super.createDataset(isDemo);
    }

    /**
     * Creates a chart.
     * 
     * @param dataset  the dataset.
     * 
     * @return a chart.
     */
    protected JFreeChart createChart(PieDataset dataset) {

        JFreeChart chart = ChartFactory.createRingChart(chartTitle, // chart title
                dataset, // data
                !legendPanelOn, // include legend
                true, false);

        RingPlot plot = (RingPlot) chart.getPlot();
        plot.setLabelFont(new Font("SansSerif", Font.PLAIN, 12));
        plot.setNoDataMessage("No data available");
        plot.setCircular(false);
        plot.setLabelGap(0.02);
        for (int i = 0; i < pulloutFlag.length; i++) {
            //System.out.println("\""+pulloutFlag[i]+"\"");
            if (isPullout(i)) {
                Comparable key = dataset.getKey(i);
                plot.setExplodePercent(key, 0.30);
            }
        }

        if (rotateOn) {
            Rotator rotator = new Rotator(plot);
            rotator.start();
        }

        setCategorySummary(dataset);
        return chart;

    }

}