edu.ucla.stat.SOCR.chart.demo.LineChartDemo1.java Source code

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Here is the source code for edu.ucla.stat.SOCR.chart.demo.LineChartDemo1.java

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

import java.awt.Color;
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.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.HorizontalAlignment;
import org.jfree.ui.RectangleEdge;

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

/**
 * A simple demonstration application showing how to create a line chart using 
 * data from a {@link CategoryDataset}.
 */
public class LineChartDemo1 extends SuperCategoryChart implements PropertyChangeListener {

    public void init() {
        turnLegendPanelOn();
        super.init();
    }

    /**
     * Creates a sample dataset.
     * 
     * @return The dataset.
     */
    protected CategoryDataset createDataset(boolean isDemo) {

        if (isDemo) {
            DefaultCategoryDataset dataset = new DefaultCategoryDataset();
            dataset.addValue(212, "Classes", "JDK 1.0");
            dataset.addValue(504, "Classes", "JDK 1.1");
            dataset.addValue(1520, "Classes", "SDK 1.2");
            dataset.addValue(1842, "Classes", "SDK 1.3");
            dataset.addValue(2991, "Classes", "SDK 1.4");
            return dataset;
        } else
            return super.createDataset(false);
    }

    /**
    * 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("LineChartDemo1 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("Line", "Category Chart", "Release", "Class Count", dataTable,
                no_category, pairs, "nofill");
        chartPanel = new ChartPanel(chart, false);

        setChart();
    }

    /**
     * Creates a sample chart.
     * 
     * @param dataset  a dataset.
     * 
     * @return The chart.
     */
    protected JFreeChart createChart(CategoryDataset dataset) {
        if (isDemo) {
            chartTitle = "Java Standard Class Library";
            domainLabel = "Release";
            rangeLabel = "Class Count";
        } else
            chartTitle = "Line Chart";

        // create the chart...
        JFreeChart chart = ChartFactory.createLineChart(chartTitle, // chart title
                domainLabel, // domain axis label
                rangeLabel, // range axis label
                dataset, // data
                PlotOrientation.VERTICAL, // orientation
                !legendPanelOn, // include legend
                true, // tooltips
                false // urls
        );

        if (isDemo) {
            chart.addSubtitle(new TextTitle("Number of Classes By Release"));
            TextTitle source = new TextTitle(
                    "Source: Java In A Nutshell (4th Edition) " + "by David Flanagan (O'Reilly)");
            source.setFont(new Font("SansSerif", Font.PLAIN, 10));
            source.setPosition(RectangleEdge.BOTTOM);
            source.setHorizontalAlignment(HorizontalAlignment.RIGHT);
            chart.addSubtitle(source);
        } else {
            chart.clearSubtitles();
        }

        chart.setBackgroundPaint(Color.white);

        CategoryPlot plot = (CategoryPlot) chart.getPlot();
        plot.setBackgroundPaint(Color.lightGray);
        plot.setRangeGridlinePaint(Color.white);

        // customise the range axis...
        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

        // customise the renderer...
        LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
        renderer.setBaseShapesVisible(true);
        renderer.setDrawOutlines(true);
        renderer.setUseFillPaint(true);
        renderer.setBaseFillPaint(Color.white);
        renderer.setLegendItemLabelGenerator(new SOCRCategorySeriesLabelGenerator());

        setCategorySummary(dataset);
        return chart;
    }

}