jfreechart example source code file (ChartChangeEvent.java)

This example jfreechart source code file (ChartChangeEvent.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

chartchangeevent, chartchangeevent, chartchangeeventtype, chartchangeeventtype, eventobject, eventobject, jfreechart, jfreechart, util

The jfreechart ChartChangeEvent.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.]
 *
 * ---------------------
 * ChartChangeEvent.java
 * ---------------------
 * (C) Copyright 2000-2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes (from 24-Aug-2001)
 * --------------------------
 * 24-Aug-2001 : Added standard source header. Fixed DOS encoding problem (DG);
 * 07-Nov-2001 : Updated header (DG);
 *               Change event type names (DG);
 * 09-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 * 18-Feb-2005 : Changed the type from int to ChartChangeEventType (DG);
 *
 */

package org.jfree.chart.event;

import java.util.EventObject;

import org.jfree.chart.JFreeChart;

/**
 * A change event that encapsulates information about a change to a chart.
 */
public class ChartChangeEvent extends EventObject {

    /** The type of event. */
    private ChartChangeEventType type;

    /** The chart that generated the event. */
    private JFreeChart chart;

    /**
     * Creates a new chart change event.
     *
     * @param source  the source of the event (could be the chart, a title,
     *                an axis etc.)
     */
    public ChartChangeEvent(Object source) {
        this(source, null, ChartChangeEventType.GENERAL);
    }

    /**
     * Creates a new chart change event.
     *
     * @param source  the source of the event (could be the chart, a title, an
     *                axis etc.)
     * @param chart  the chart that generated the event.
     */
    public ChartChangeEvent(Object source, JFreeChart chart) {
        this(source, chart, ChartChangeEventType.GENERAL);
    }

    /**
     * Creates a new chart change event.
     *
     * @param source  the source of the event (could be the chart, a title, an
                      axis etc.)
     * @param chart  the chart that generated the event.
     * @param type  the type of event.
     */
    public ChartChangeEvent(Object source, JFreeChart chart,
                            ChartChangeEventType type) {
        super(source);
        this.chart = chart;
        this.type = type;
    }

    /**
     * Returns the chart that generated the change event.
     *
     * @return The chart that generated the change event.
     */
    public JFreeChart getChart() {
        return this.chart;
    }

    /**
     * Sets the chart that generated the change event.
     *
     * @param chart  the chart that generated the event.
     */
    public void setChart(JFreeChart chart) {
        this.chart = chart;
    }

    /**
     * Returns the event type.
     *
     * @return The event type.
     */
    public ChartChangeEventType getType() {
        return this.type;
    }

    /**
     * Sets the event type.
     *
     * @param type  the event type.
     */
    public void setType(ChartChangeEventType type) {
        this.type = type;
    }

}