Demo.HistGraph.java Source code

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Here is the source code for Demo.HistGraph.java

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/*
 * Copyright @ Ye XIA <qazxiaye@126.com>
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package Demo;

import java.awt.Color;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.List;

import javax.swing.DefaultListModel;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYBarRenderer;
import org.jfree.data.statistics.HistogramDataset;
import org.jfree.data.statistics.HistogramType;

public class HistGraph extends JPanel implements MouseListener {
    List<String> paraType_list;
    JList paraSelector;

    ChartPanel chartPane;
    JFreeChart[] charts;

    public HistGraph(List<String> paraType_list) {
        this.paraType_list = paraType_list;

        // widgets: charts(JFreeChart), parameter selector (JList)
        chartPane = new ChartPanel(null);
        charts = new JFreeChart[paraType_list.size()];

        DefaultListModel modelOfList = new DefaultListModel();
        paraSelector = new JList(modelOfList);

        for (int i = 0; i < paraType_list.size(); i++) {
            modelOfList.addElement(paraType_list.get(i));
            charts[i] = null;
        }

        paraSelector.setSelectedIndex(0);

        charts[0] = CreateChart(paraType_list.get(0));
        chartPane.setChart(charts[0]);

        JScrollPane selectorPanel = new JScrollPane();
        selectorPanel.setViewportView(paraSelector);

        paraSelector.addMouseListener(this);

        // layout
        GridBagLayout layout = new GridBagLayout();
        setLayout(layout);

        GridBagConstraints gbc = new GridBagConstraints();
        gbc.fill = GridBagConstraints.BOTH;

        gbc.weighty = 1;
        gbc.anchor = GridBagConstraints.WEST;

        gbc.insets = new Insets(5, 20, 5, 5);
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.weightx = 20;
        add(new JLabel("Distribution:"), gbc);

        gbc.insets = new Insets(5, 5, 5, 20);
        gbc.gridx = 1;
        gbc.gridy = 0;
        gbc.weightx = 1;
        add(new JLabel("Parameters:"), gbc);

        gbc.weighty = 14;

        gbc.insets = new Insets(5, 20, 5, 5);
        gbc.gridx = 0;
        gbc.gridy = 1;
        gbc.weightx = 20;
        add(chartPane, gbc);

        gbc.insets = new Insets(5, 5, 15, 20);
        gbc.gridx = 1;
        gbc.gridy = 1;
        gbc.weightx = 1;
        add(selectorPanel, gbc);
    }

    private JFreeChart CreateChart(String para) {
        // read .dat file
        double[] value = Utils.GetParaTab(para);

        // generate chart
        HistogramDataset dataset = new HistogramDataset();
        dataset.setType(HistogramType.FREQUENCY);
        dataset.addSeries(para, value, 20);

        String plotTitle = para;
        String xaxis = "value";
        String yaxis = "frequecy";
        PlotOrientation orientation = PlotOrientation.VERTICAL;

        boolean show = false;
        boolean toolTips = false;
        boolean urls = false;

        JFreeChart chart = ChartFactory.createHistogram(plotTitle, xaxis, yaxis, dataset, orientation, show,
                toolTips, urls);

        final XYPlot xyPlot = chart.getXYPlot();
        final XYBarRenderer renderer = (XYBarRenderer) xyPlot.getRenderer();
        renderer.setSeriesPaint(0, Color.BLUE);

        return chart;
    }

    @Override
    public void mouseReleased(MouseEvent e) {
        if (e.getSource() == paraSelector) {
            int selected = paraSelector.getSelectedIndex();

            if (charts[selected] == null) {
                charts[selected] = CreateChart(paraType_list.get(selected));
            }

            chartPane.setChart(charts[selected]);
        }
    }

    @Override
    public void mouseClicked(MouseEvent arg0) {
    }

    @Override
    public void mouseEntered(MouseEvent arg0) {
    }

    @Override
    public void mouseExited(MouseEvent arg0) {
    }

    @Override
    public void mousePressed(MouseEvent arg0) {
    }
}