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JFreeChart is a class library, written in Java, for generating charts.
Utilising the Java2D API, it supports a wide range of chart types including
bar charts, pie charts, line charts, XY-plots, time series plots, Sankey charts
and more.
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-present, by David Gilbert 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.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* ---------------------
* ChartChangeEvent.java
* ---------------------
* (C) Copyright 2000-present, by David Gilbert.
*
* Original Author: David Gilbert;
* Contributor(s): -;
*
*/
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;
}
}