kata.pkg3.HistogramaDisplay.java Source code

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Here is the source code for kata.pkg3.HistogramaDisplay.java

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package kata.pkg3;

import java.awt.Dimension;
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.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;

/**
 *
 * @author usuario
 */
public class HistogramaDisplay extends ApplicationFrame {

    private final Histogram<String> histo;

    public HistogramaDisplay(Histogram<String> histo) {
        super("HISTOGRAMA");
        this.histo = histo;
        setContentPane(createPanel());
        pack();
    }

    private ChartPanel createPanel() {
        ChartPanel chartPanel = new ChartPanel(createChart(createDataset()));
        chartPanel.setPreferredSize(new Dimension(500, 450));
        return chartPanel;

    }

    private JFreeChart createChart(DefaultCategoryDataset dataset) {
        JFreeChart chart = ChartFactory.createBarChart("Histograma de dominios", "DOMINIOS", "N Email", dataset,
                PlotOrientation.VERTICAL, true, true, false);
        return chart;
    }

    private DefaultCategoryDataset createDataset() {
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        for (String key : histo.keySet()) {
            dataset.addValue(histo.get(key), "", key);
        }
        return dataset;

    }

    public void execute() {
        setVisible(true);
    }
}