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jfreechart example source code file (StandardXYToolTipGenerator.java)

This example jfreechart source code file (StandardXYToolTipGenerator.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - jfreechart tags/keywords

abstractxyitemlabelgenerator, clonenotsupportedexception, dateformat, dateformat, default_tool_tip_format, io, numberformat, numberformat, publiccloneable, serializable, standardxytooltipgenerator, standardxytooltipgenerator, string, string, text, xytooltipgenerator

The jfreechart StandardXYToolTipGenerator.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * 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. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * -------------------------------
 * StandardXYToolTipGenerator.java
 * -------------------------------
 * (C) Copyright 2004-2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 12-May-2004 : Version 1 (DG);
 * ------------- JFREECHART 1.0.x ---------------------------------------------
 * 25-Jan-2007 : Added new constructor - see bug 1624067 (DG);
 *
 */

package org.jfree.chart.labels;

import java.io.Serializable;
import java.text.DateFormat;
import java.text.NumberFormat;

import org.jfree.data.xy.XYDataset;
import org.jfree.util.PublicCloneable;

/**
 * A standard tool tip generator for use with an
 * {@link org.jfree.chart.renderer.xy.XYItemRenderer}.
 */
public class StandardXYToolTipGenerator extends AbstractXYItemLabelGenerator
        implements XYToolTipGenerator, Cloneable, PublicCloneable,
                   Serializable {

    /** For serialization. */
    private static final long serialVersionUID = -3564164459039540784L;

    /** The default tooltip format. */
    public static final String DEFAULT_TOOL_TIP_FORMAT = "{0}: ({1}, {2})";

    /**
     * Returns a tool tip generator that formats the x-values as dates and the
     * y-values as numbers.
     *
     * @return A tool tip generator (never <code>null).
     */
    public static StandardXYToolTipGenerator getTimeSeriesInstance() {
        return new StandardXYToolTipGenerator(DEFAULT_TOOL_TIP_FORMAT,
                DateFormat.getInstance(), NumberFormat.getInstance());
    }

    /**
     * Creates a tool tip generator using default number formatters.
     */
    public StandardXYToolTipGenerator() {
        this(DEFAULT_TOOL_TIP_FORMAT, NumberFormat.getNumberInstance(),
                NumberFormat.getNumberInstance());
    }

    /**
     * Creates a tool tip generator using the specified number formatters.
     *
     * @param formatString  the item label format string (<code>null not
     *                      permitted).
     * @param xFormat  the format object for the x values (<code>null
     *                 not permitted).
     * @param yFormat  the format object for the y values (<code>null
     *                 not permitted).
     */
    public StandardXYToolTipGenerator(String formatString,
            NumberFormat xFormat, NumberFormat yFormat) {

        super(formatString, xFormat, yFormat);

    }

    /**
     * Creates a tool tip generator using the specified number formatters.
     *
     * @param formatString  the label format string (<code>null not
     *                      permitted).
     * @param xFormat  the format object for the x values (<code>null
     *                 not permitted).
     * @param yFormat  the format object for the y values (<code>null
     *                 not permitted).
     */
    public StandardXYToolTipGenerator(String formatString, DateFormat xFormat,
            NumberFormat yFormat) {

        super(formatString, xFormat, yFormat);

    }

    /**
     * Creates a tool tip generator using the specified formatters (a
     * number formatter for the x-values and a date formatter for the
     * y-values).
     *
     * @param formatString  the item label format string (<code>null
     *                      not permitted).
     * @param xFormat  the format object for the x values (<code>null
     *                 permitted).
     * @param yFormat  the format object for the y values (<code>null
     *                 not permitted).
     *
     * @since 1.0.4
     */
    public StandardXYToolTipGenerator(String formatString,
            NumberFormat xFormat, DateFormat yFormat) {

        super(formatString, xFormat, yFormat);
    }
    /**
     * Creates a tool tip generator using the specified date formatters.
     *
     * @param formatString  the label format string (<code>null not
     *                      permitted).
     * @param xFormat  the format object for the x values (<code>null
     *                 not permitted).
     * @param yFormat  the format object for the y values (<code>null
     *                 not permitted).
     */
    public StandardXYToolTipGenerator(String formatString,
            DateFormat xFormat, DateFormat yFormat) {

        super(formatString, xFormat, yFormat);

    }

    /**
     * Generates the tool tip text for an item in a dataset.
     *
     * @param dataset  the dataset (<code>null not permitted).
     * @param series  the series index (zero-based).
     * @param item  the item index (zero-based).
     *
     * @return The tooltip text (possibly <code>null).
     */
    public String generateToolTip(XYDataset dataset, int series, int item) {
        return generateLabelString(dataset, series, item);
    }

    /**
     * Tests this object for equality with an arbitrary object.
     *
     * @param obj  the other object (<code>null permitted).
     *
     * @return A boolean.
     */
    public boolean equals(Object obj) {
        if (obj == this) {
            return true;
        }
        if (!(obj instanceof StandardXYToolTipGenerator)) {
            return false;
        }
        return super.equals(obj);
    }

    /**
     * Returns an independent copy of the generator.
     *
     * @return A clone.
     *
     * @throws CloneNotSupportedException if cloning is not supported.
     */
    public Object clone() throws CloneNotSupportedException {
        return super.clone();
    }

}

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