edu.ucla.stat.SOCR.chart.demo.BarChartDemo2.java Source code

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Here is the source code for edu.ucla.stat.SOCR.chart.demo.BarChartDemo2.java

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

import java.awt.Color;
import java.beans.PropertyChangeListener;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.labels.StandardCategorySeriesLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.DatasetUtilities;

import edu.ucla.stat.SOCR.chart.ChartGenerator_JTable;
import edu.ucla.stat.SOCR.chart.SuperCategoryChart_Bar;
import edu.ucla.stat.SOCR.chart.gui.SOCRCategorySeriesLabelGenerator;

/**
 * A simple demonstration application showing how to create a horizontal bar 
 * chart.
 */
public class BarChartDemo2 extends SuperCategoryChart_Bar implements PropertyChangeListener {

    /**
     * sample code showing how to create a  chart using ChartGenerator_JTable class
     */
    public void doTest() {
        JFreeChart chart;
        ChartGenerator_JTable chartMaker = new ChartGenerator_JTable();

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

        int no_series = dataTable.getRowCount() - 1;
        int no_category = dataTable.getColumnCount() - 2;
        int[][] pairs = new int[no_category][2];
        for (int i = 0; i < no_category; i++) {
            pairs[i][0] = i + 1; //column i store category i
            pairs[i][1] = 0; //column 0 stores series name
        }
        chart = chartMaker.getCategoryChart("Bar", chartTitle, "Category", "Score (%)", dataTable, no_category,
                pairs, "horizontal");
        chartPanel = new ChartPanel(chart, false);

        setChart();
    }

    /**
     * Creates a sample dataset.
     * @param isDemo true use the demo data, false use data from the JTable
     * @return A dataset.
     */
    protected CategoryDataset createDataset(boolean isDemo) {
        if (isDemo) {
            //indepLabel = "Category";
            //depLabel = "Score (%)";
            double[][] data = new double[][] { { 1.0, 43.0, 35.0, 58.0, 54.0, 77.0, 71.0, 89.0 },
                    { 54.0, 75.0, 63.0, 83.0, 43.0, 46.0, 27.0, 13.0 },
                    { 41.0, 33.0, 22.0, 34.0, 62.0, 32.0, 42.0, 34.0 } };
            return DatasetUtilities.createCategoryDataset("Series ", "Factor ", data);
        } else
            return super.createDataset(false);
    }

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

        JFreeChart chart = ChartFactory.createBarChart(chartTitle, // chart title
                domainLabel, // domain axis label
                rangeLabel, // range axis label
                dataset, // data
                PlotOrientation.HORIZONTAL, // orientation
                !legendPanelOn, // include legend
                true, false);

        // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...

        // set the background color for the chart...
        chart.setBackgroundPaint(Color.white);

        // get a reference to the plot for further customisation...
        CategoryPlot plot = (CategoryPlot) chart.getPlot();
        plot.setBackgroundPaint(Color.lightGray);
        plot.setRangeGridlinePaint(Color.white);
        plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);

        // change the auto tick unit selection to integer units only...
        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
        rangeAxis.setRange(0.0, 100.0);
        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

        BarRenderer renderer = (BarRenderer) plot.getRenderer();
        renderer.setDrawBarOutline(false);
        renderer.setLegendItemToolTipGenerator(new StandardCategorySeriesLabelGenerator("Tooltip: {0}"));
        // OPTIONAL CUSTOMISATION COMPLETED.

        renderer.setLegendItemLabelGenerator(new SOCRCategorySeriesLabelGenerator());

        setCategorySummary(dataset);
        return chart;

    }

}