jFreeChart in Applet using Eclipse IDE with VE

From:

scifluent@gmail.com

Newsgroups:

comp.lang.java.programmer

Date:

18 Mar 2007 15:32:17 -0700

Message-ID:

<1174257137.768343.171330@o5g2000hsb.googlegroups.com>

Hi!

For some reason the code below will run fine in the sun applet viewer
but will not deploy in my Safari or Firefox browser. All I get is the
java loading indicator and then a red "x" in the window it should be
working in. I exported the class into an uncompressed .jar file to
eliminate the issue mentioned at:
http://www.velocityreviews.com/forums/t132903-problem-deploying-applet.html
but no improvement.

Anyone made this hurdle?

Web page:

<html>
<body>

<applet code= ChartApplet.class
        archive="ChartJar.jar"
        width=500 height=500>
</applet>

</body>
</html>

Code made using Eclipse with the assistance of VE:

import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Rectangle;
import java.util.ArrayList;

import javax.swing.BorderFactory;
import javax.swing.JApplet;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.border.SoftBevelBorder;
import javax.swing.border.TitledBorder;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;

public class ChartApplet extends JApplet {

    /**
     *
     */
    private static final long serialVersionUID = 1L;
    private JPanel jContentPane = null;
    private ChartPanel chartPanel;

    private String columnNames[];
    private String dataValues[][];

    protected XYSeriesCollection chartDataSet = new XYSeriesCollection();
    protected ArrayList <String> chartPlotType = new
ArrayList<String>(); // @jve:decl-index=0:
    protected String chartTitle = "Hey";
    protected String chartYAxisTitle = "Wow";
    protected String chartXAxisTitle = "NoWay";

    /**
     * This is the xxx default constructor
     */
    public ChartApplet() {
        super();
    }

    /**
     * This method initializes this
     *
     * @return void
     */
    public void init() {
        dummyChart();
        this.setContentPane(getJContentPane());

    }

    /**
     * This method initializes jContentPane
     *
     * @return javax.swing.JPanel
     */
    private JPanel getJContentPane() {
        if (jContentPane == null) {
            FlowLayout flowLayout = new FlowLayout();
            flowLayout.setHgap(9);
            flowLayout.setVgap(27);
            jContentPane = new JPanel();
            jContentPane.setLayout(flowLayout);
            jContentPane.add(chartPanel);
        }
        return jContentPane;
    }

    // jFreeChart

    public void createChart(){
        JFreeChart chart = createChart(chartDataSet);
        chartPanel = new ChartPanel(chart);
        chartPanel.setBorder(BorderFactory.createTitledBorder(new
SoftBevelBorder(SoftBevelBorder.RAISED), "Option Chart",
TitledBorder.CENTER, TitledBorder.DEFAULT_POSITION, null, null));
    }

    protected JFreeChart createChart(XYDataset dataset) {

        JFreeChart chart = ChartFactory.createXYAreaChart(
                chartTitle,
                chartXAxisTitle, chartYAxisTitle,
                dataset,
                PlotOrientation.VERTICAL,
                true, // legend
                true, // tool tips
                false // URLs
        );

        chart.setBackgroundPaint(Color.white);

        XYPlot plot = (XYPlot) chart.getPlot();
        plot.setBackgroundPaint(Color.lightGray);
        plot.setForegroundAlpha(0.65f);
        plot.setDomainGridlinePaint(Color.white);
        plot.setRangeGridlinePaint(Color.white);

        ValueAxis domainAxis = plot.getDomainAxis();
        domainAxis.setTickMarkPaint(Color.black);
        domainAxis.setLowerMargin(0.0);
        domainAxis.setUpperMargin(0.0);

        ValueAxis rangeAxis = plot.getRangeAxis();
        rangeAxis.setTickMarkPaint(Color.black);

        return chart;
    }

    private void dummyChart(){

        for (int j = 0; j < 2; j++){

            ArrayList<Float> xdata = new ArrayList<Float>();
            ArrayList<Float> ydata = new ArrayList<Float>();

            for (int i = 0; i < 10; i++) {
                xdata.add((float)i);
                ydata.add((float) i * .10f);
            }

            xdata.trimToSize();
            ydata.trimToSize();

            this.addChartSeriesXandYValues("Test", xdata, ydata,"Shape");
            this.createChart();
        }
    }

    public void addChartSeriesXandYValues(String series_title_in,
ArrayList<Float> x_data_in,
            ArrayList<Float> y_data_in, String plot_type) {

        XYSeries newSeries = new XYSeries(series_title_in);

        ArrayList<Float> seriesX = x_data_in;
        ArrayList<Float> seriesY = y_data_in;

        for(int i = 0; i < seriesX.size(); i++)
newSeries.add(seriesX.get(i), seriesY.get(i));

        chartDataSet.addSeries(newSeries);
        chartDataSet.setIntervalWidth(0.0);
        chartPlotType.add(plot_type);

    }
}