MWC.GUI.JFreeChart.DatedToolTipGenerator.java Source code

Introduction

Here is the source code for MWC.GUI.JFreeChart.DatedToolTipGenerator.java

Source

/*
 *    Debrief - the Open Source Maritime Analysis Application
 *    http://debrief.info
 *
 *    (C) 2000-2014, PlanetMayo Ltd
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the Eclipse Public License v1.0
 *    (http://www.eclipse.org/legal/epl-v10.html)
 *
 *    This library 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. 
 */
package MWC.GUI.JFreeChart;

import java.util.Date;

import org.jfree.chart.labels.StandardXYToolTipGenerator;
import org.jfree.data.xy.XYDataset;

/** custom class which shows the date in a tooltip
 *
 */
public final class DatedToolTipGenerator extends StandardXYToolTipGenerator {
    /**
      * 
      */
    private static final long serialVersionUID = 1L;

    /**
    * Generates a tool tip text item for a particular item within a series.
    *
    * @param data  the dataset.
    * @param series  the series (zero-based index).
    * @param item  the item (zero-based index).
    *
    * @return the tool tip text.
    */
    public String generateToolTip(final XYDataset data, final int series, final int item) {
        String result = "|" + data.getSeriesKey(series) + " | ";
        final Number x = data.getXValue(series, item);

        // put into Date value
        final Date newD = new Date(x.longValue());

        result = result + " DTG: " + newD.toString();

        final Number y = data.getYValue(series, item);
        if (y != null) {
            result = result + ", value: " + this.getYFormat().format(y);
        } else {
            result = result + ", y: null";
        }

        return result;
    }
}