kata.pkg3.HistogramDisplay.java Source code

Introduction

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

Source

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;

/*
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/**
 *
 * @author guise
 */
public class HistogramDisplay extends ApplicationFrame {

    private final Histogram<String> histograma;

    public HistogramDisplay(Histogram<String> histograma) {
        super("Histograma");
        this.histograma = histograma;
        setContentPane(createpanel());
        pack();

    }

    private ChartPanel createpanel() {
        ChartPanel chartPanel = new ChartPanel(createChart(createDataset()));
        //Dimensionamos la ventana que vamos a crear
        chartPanel.setPreferredSize(new Dimension(500, 400));
        return chartPanel;
    }

    private JFreeChart createChart(DefaultCategoryDataset dataset) {
        JFreeChart chart = ChartFactory.createBarChart(null, "DOMINIO", "N email", dataset,
                PlotOrientation.VERTICAL, true, //Muestra la leyenda en caso de tener mas datos
                true, //Pasas el raton por encima y te muestra los datos
                false); //Algo del Entorno Web
        return chart;

    }

    private DefaultCategoryDataset createDataset() {
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();

        for (String key : histograma.keySet()) {
            dataset.addValue(histograma.get(key), "", key);
        }

        return dataset;
    }

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