/* ===========================================================
 
* JFreeChart : a free chart library for the Java(tm) platform
 
* ===========================================================
 
*
 
* (C) Copyright 2000-2016, 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.
 
*
 
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
 
* Other names may be trademarks of their respective owners.]
 
*
 
* ---------------------------------
 
* StandardXYItemLabelGenerator.java
 
* ---------------------------------
 
* (C) Copyright 2001-2009, by Object Refinery Limited.
 
*
 
* Original Author:
  
David Gilbert (for Object Refinery Limited);
 
* Contributor(s):
   
-;
 
*
 
* Changes
 
* -------
 
* 13-Dec-2001 : Version 1 (DG);
 
* 16-Jan-2002 : Completed Javadocs (DG);
 
* 02-Apr-2002 : Modified to handle null y-values (DG);
 
* 09-Apr-2002 : Added formatting objects for the x and y values (DG);
 
* 30-May-2002 : Added series name to standard tool tip (DG);
 
* 26-Sep-2002 : Fixed errors reported by Checkstyle (DG);
 
* 23-Mar-2003 : Implemented Serializable (DG);
 
* 13-Aug-2003 : Implemented Cloneable (DG);
 
* 17-Nov-2003 : Implemented PublicCloneable (DG);
 
* 25-Feb-2004 : Renamed XYToolTipGenerator --> XYItemLabelGenerator and
 
*
               
StandardXYToolTipGenerator -->
 
*
               
StandardXYItemLabelGenerator (DG);
 
* 26-Feb-2004 : Modified to use MessageFormat (DG);
 
* 27-Feb-2004 : Added abstract superclass (DG);
 
* 11-May-2004 : Split into StandardXYToolTipGenerator and
 
*
               
StandardXYLabelGenerator (DG);
 
* 20-Apr-2005 : Renamed StandardXYLabelGenerator
 
*
               
--> StandardXYItemLabelGenerator (DG);
 
* ------------- JFREECHART 1.0.x ---------------------------------------------
 
* 25-Jan-2007 : Added new constructor - see bug 1624067 (DG);
 
* 24-Jun-2009 : Added new constructor (DG);
 
*
 
*/

package org.jfree.chart.labels;

import java.io.Serializable;
import java.text.DateFormat;
import java.text.NumberFormat;
import org.jfree.chart.util.PublicCloneable;

import org.jfree.data.xy.XYDataset;

/**
 
* A standard item label generator for plots that use data from an
 
* .
 
*/

public class StandardXYItemLabelGenerator extends AbstractXYItemLabelGenerator
        
implements XYItemLabelGenerator, Cloneable, PublicCloneable,
            
Serializable {

    
/** For serialization. */
    
private static final long serialVersionUID = 7807668053171837925L;

    
/** The default item label format. */
    
public static final String DEFAULT_ITEM_LABEL_FORMAT = "{2}";

    
/**
     
* Creates an item label generator using default number formatters.
     
*/

    
public StandardXYItemLabelGenerator() {
        
this(DEFAULT_ITEM_LABEL_FORMAT, NumberFormat.getNumberInstance(),
                
NumberFormat.getNumberInstance());
    
}

    
/**
     
* Creates an item label generator using the specified number formatters.
     
*
     
* @param formatString
  
the item label format string ({@code null} not
     
*
                      
permitted).
     
*
     
* @since 1.0.14
     
*/

    
public StandardXYItemLabelGenerator(String formatString) {
        
this(formatString, NumberFormat.getNumberInstance(),
                
NumberFormat.getNumberInstance());
    
}

    
/**
     
* Creates an item label 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 StandardXYItemLabelGenerator(String formatString,
            
NumberFormat xFormat, NumberFormat yFormat) {

        
super(formatString, xFormat, yFormat);
    
}

    
/**
     
* Creates an item label generator using the specified 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 StandardXYItemLabelGenerator(String formatString,
            
DateFormat xFormat, NumberFormat yFormat) {

        
super(formatString, xFormat, yFormat);
    
}

    
/**
     
* Creates an item label 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 StandardXYItemLabelGenerator(String formatString,
            
NumberFormat xFormat, DateFormat yFormat) {

        
super(formatString, xFormat, yFormat);
    
}

    
/**
     
* Creates a label 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 StandardXYItemLabelGenerator(String formatString,
            
DateFormat xFormat, DateFormat yFormat) {

        
super(formatString, xFormat, yFormat);
    
}

    
/**
     
* Generates the item label 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 label text (possibly {@code null}).
     
*/

    
@Override
    
public String generateLabel(XYDataset dataset, int series, int item) {
        
return generateLabelString(dataset, series, item);
    
}

    
/**
     
* Returns an independent copy of the generator.
     
*
     
* @return A clone.
     
*
     
* @throws CloneNotSupportedException if cloning is not supported.
     
*/

    
@Override
    
public Object clone() throws CloneNotSupportedException {
        
return super.clone();
    
}

    
/**
     
* Tests this object for equality with an arbitrary object.
     
*
     
* @param obj
  
the other object ({@code null} permitted).
     
*
     
* @return A boolean.
     
*/

    
@Override
    
public boolean equals(Object obj) {
        
if (obj == this) {
            
return true;
        
}
        
if (!(obj instanceof StandardXYItemLabelGenerator)) {
            
return false;
        
}
        
return super.equals(obj);
    
}

}