/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2007, 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.]
*
* -----------------
* XYItemEntity.java
* -----------------
* (C) Copyright 2002-2007, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): Richard Atkinson;
* Christian W. Zuckschwerdt;
*
* Changes:
* --------
* 23-May-2002 : Version 1 (DG);
* 12-Jun-2002 : Added accessor methods and Javadoc comments (DG);
* 26-Jun-2002 : Added getImageMapAreaTag() method (DG);
* 05-Aug-2002 : Added new constructor to populate URLText
* Moved getImageMapAreaTag() to ChartEntity (superclass) (RA);
* 03-Oct-2002 : Fixed errors reported by Checkstyle (DG);
* 30-Jun-2003 : Added XYDataset reference (CZ);
* 20-May-2004 : Added equals() and clone() methods and implemented
* Serializable (DG);
* 11-Jan-2005 : Removed deprecated code in preparation for 1.0.0 release (DG);
*
*/
package org.jfree.chart.entity;
import java.awt.Shape;
import org.jfree.data.xy.XYDataset;
/**
* A chart entity that represents one item within an
* {@link org.jfree.chart.plot.XYPlot}.
*/
public class XYItemEntity extends ChartEntity {
/** For serialization. */
private static final long serialVersionUID = -3870862224880283771L;
/** The dataset. */
private transient XYDataset dataset;
/** The series. */
private int series;
/** The item. */
private int item;
/**
* Creates a new entity.
*
* @param area the area.
* @param dataset the dataset.
* @param series the series (zero-based index).
* @param item the item (zero-based index).
* @param toolTipText the tool tip text.
* @param urlText the URL text for HTML image maps.
*/
public XYItemEntity(Shape area,
XYDataset dataset, int series, int item,
String toolTipText, String urlText) {
super(area, toolTipText, urlText);
this.dataset = dataset;
this.series = series;
this.item = item;
}
/**
* Returns the dataset this entity refers to.
*
* @return The dataset.
*/
public XYDataset getDataset() {
return this.dataset;
}
/**
* Sets the dataset this entity refers to.
*
* @param dataset the dataset.
*/
public void setDataset(XYDataset dataset) {
this.dataset = dataset;
}
/**
* Returns the series index.
*
* @return The series index.
*/
public int getSeriesIndex() {
return this.series;
}
/**
* Sets the series index.
*
* @param series the series index (zero-based).
*/
public void setSeriesIndex(int series) {
this.series = series;
}
/**
* Returns the item index.
*
* @return The item index.
*/
public int getItem() {
return this.item;
}
/**
* Sets the item index.
*
* @param item the item index (zero-based).
*/
public void setItem(int item) {
this.item = item;
}
/**
* Tests the entity for equality with an arbitrary object.
*
* @param obj the object (<code>null</code> permitted).
*
* @return A boolean.
*/
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof XYItemEntity && super.equals(obj)) {
XYItemEntity ie = (XYItemEntity) obj;
if (this.series != ie.series) {
return false;
}
if (this.item != ie.item) {
return false;
}
return true;
}
return false;
}
/**
* Returns a string representation of this instance, useful for debugging
* purposes.
*
* @return A string.
*/
public String toString() {
return "XYItemEntity: series = " + getSeriesIndex() + ", item = "
+ getItem() + ", dataset = " + getDataset();
}
}
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