be.ac.ua.comp.scarletnebula.gui.DecoratedGraph.java Source code

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Here is the source code for be.ac.ua.comp.scarletnebula.gui.DecoratedGraph.java

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/*
 * Copyright (C) 2011  Ives van der Flaas
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package be.ac.ua.comp.scarletnebula.gui;

import java.awt.Color;
import java.awt.Font;
import java.text.DecimalFormat;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.DateTickUnit;
import org.jfree.chart.axis.DateTickUnitType;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.NumberTickUnit;
import org.jfree.chart.plot.XYPlot;

import be.ac.ua.comp.scarletnebula.core.Datapoint.Type;
import be.ac.ua.comp.scarletnebula.core.Datastream;
import be.ac.ua.comp.scarletnebula.core.TimedDatapoint;
import be.ac.ua.comp.scarletnebula.misc.Utils;

public class DecoratedGraph extends Graph {
    final private static Log log = LogFactory.getLog(DecoratedGraph.class);
    private final DateAxis domain = new DateAxis();
    private final NumberAxis range = new NumberAxis();
    private final Datastream stream;

    /**
     * Constructor
     * 
     * @param maximumAge
     *            The age after which data is no longer displayed in the graph
     */
    public DecoratedGraph(final long maximumAge, final Datastream stream) {
        super(maximumAge);
        this.stream = stream;
        domain.setVisible(false);
        domain.setAutoRange(true);
        domain.setLowerMargin(0.0);
        domain.setUpperMargin(0.0);
        domain.setTickLabelsVisible(true);
        domain.setTickUnit(new DateTickUnit(DateTickUnitType.SECOND, 30));

        range.setTickUnit(new NumberTickUnit(0.2, new DecimalFormat(), 5));
        range.setAutoRange(true);
        range.setVisible(true);

    }

    /**
     * @see Graph
     */
    @Override
    public ChartPanel getChartPanel() {
        final XYPlot plot = new XYPlot(dataset, domain, range, renderer);
        plot.setBackgroundPaint(Color.darkGray);
        plot.setDomainGridlinePaint(Color.white);
        plot.setRangeGridlinePaint(Color.white);
        // plot.setInsets(new RectangleInsets(0, 0, 0, 0));
        plot.setDomainGridlinesVisible(true);
        plot.setRangeGridlinesVisible(true);

        if (stream.getMax() != null) {
            log.info("Getting chart panel for stream with maximum.");
            range.setAutoRange(false);

            range.setTickUnit(new NumberTickUnit(stream.getMax() / 10, new DecimalFormat(), 1));
            range.setRange(0, stream.getMax());
        } else if (stream.getType() == Type.RELATIVE) {
            range.setAutoRange(false);

            range.setTickUnit(new NumberTickUnit(0.1, new DecimalFormat(), 1));
            range.setRange(0, 1);
        } else {
            double sum = 0;
            final List<TimedDatapoint> datapoints = stream.getRecentlyProcessedDatapoints();

            range.setTickUnit(
                    new NumberTickUnit((int) (Utils.max(datapoints).getValue() / 5) + 1, new DecimalFormat(), 1));
        }

        final JFreeChart chart = new JFreeChart(stream.getStreamname(), new Font("SansSerif", Font.PLAIN, 20), plot,
                true);
        chart.setBackgroundPaint(Color.white);
        chart.removeLegend();
        final ChartPanel chartPanel = new ChartPanel(chart);
        // chartPanel.setBorder(BorderFactory
        // .createBevelBorder(BevelBorder.LOWERED));

        return chartPanel;
    }
}