ch.zhaw.ias.dito.ui.util.HistogramFrame.java Source code

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Here is the source code for ch.zhaw.ias.dito.ui.util.HistogramFrame.java

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/* released under bsd licence
 * see LICENCE file or http://www.opensource.org/licenses/bsd-license.php for details
 * Institute of Applied Simulation (ZHAW)
 * Author Thomas Niederberger
 */
package ch.zhaw.ias.dito.ui.util;

import java.awt.BorderLayout;
import java.util.Set;
import java.util.TreeSet;

import javax.swing.JFrame;

import org.jdesktop.swingx.JXFrame;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.statistics.HistogramDataset;
import org.jfree.data.statistics.HistogramType;

import ch.zhaw.ias.dito.config.Question;
import ch.zhaw.ias.dito.ui.resource.Translation;

public class HistogramFrame extends JXFrame {

    public HistogramFrame(Question q) {
        String title = Translation.INSTANCE.get("misc.graphic.histogram") + " " + q.getName();
        setTitle(title);
        HistogramDataset hist = new HistogramDataset();
        hist.setType(HistogramType.FREQUENCY);

        Set<Double> values = new TreeSet<Double>();
        q.getData().addValuesToCollection(values);
        int numOfBins = Math.min(values.size(), (q.getData().filteredLength() / 20) + 10);
        hist.addSeries(q.getName(), q.getData().getValues(), numOfBins);

        JFreeChart chart = ChartFactory.createHistogram(title, Translation.INSTANCE.get("misc.graphic.value"),
                Translation.INSTANCE.get("misc.graphic.frequency"), hist, PlotOrientation.VERTICAL, false, true,
                false);
        this.add(new ChartPanel(chart), BorderLayout.CENTER);

        this.setSize(300, 300);
        this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        this.setVisible(true);
    }
}