/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2011, 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.]
*
* ---------------------------------------
* IntervalCategoryItemLabelGenerator.java
* ---------------------------------------
* (C) Copyright 2004-2008, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 11-May-2004 : Version 1, split from IntervalCategoryItemLabelGenerator (DG);
*
*/
package org.jfree.chart.labels;
import java.io.Serializable;
import java.text.DateFormat;
import java.text.NumberFormat;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.IntervalCategoryDataset;
import org.jfree.util.PublicCloneable;
/**
* A label generator for plots that use data from an
* {@link IntervalCategoryDataset}.
*/
public class IntervalCategoryItemLabelGenerator
extends StandardCategoryItemLabelGenerator
implements CategoryItemLabelGenerator, PublicCloneable, Cloneable,
Serializable {
/** For serialization. */
private static final long serialVersionUID = 5056909225610630529L;
/** The default format string. */
public static final String DEFAULT_LABEL_FORMAT_STRING
= "({0}, {1}) = {3} - {4}";
/**
* Creates a new generator with a default number formatter.
*/
public IntervalCategoryItemLabelGenerator() {
super(DEFAULT_LABEL_FORMAT_STRING, NumberFormat.getInstance());
}
/**
* Creates a new generator with the specified number formatter.
*
* @param labelFormat the label format string (<code>null</code> not
* permitted).
* @param formatter the number formatter (<code>null</code> not permitted).
*/
public IntervalCategoryItemLabelGenerator(String labelFormat,
NumberFormat formatter) {
super(labelFormat, formatter);
}
/**
* Creates a new generator with the specified date formatter.
*
* @param labelFormat the label format string (<code>null</code> not
* permitted).
* @param formatter the date formatter (<code>null</code> not permitted).
*/
public IntervalCategoryItemLabelGenerator(String labelFormat,
DateFormat formatter) {
super(labelFormat, formatter);
}
/**
* Creates the array of items that can be passed to the
* <code>MessageFormat</code> class for creating labels.
*
* @param dataset the dataset (<code>null</code> not permitted).
* @param row the row index (zero-based).
* @param column the column index (zero-based).
*
* @return The items (never <code>null</code>).
*/
protected Object[] createItemArray(CategoryDataset dataset,
int row, int column) {
Object[] result = new Object[5];
result[0] = dataset.getRowKey(row).toString();
result[1] = dataset.getColumnKey(column).toString();
Number value = dataset.getValue(row, column);
if (getNumberFormat() != null) {
result[2] = getNumberFormat().format(value);
}
else if (getDateFormat() != null) {
result[2] = getDateFormat().format(value);
}
if (dataset instanceof IntervalCategoryDataset) {
IntervalCategoryDataset icd = (IntervalCategoryDataset) dataset;
Number start = icd.getStartValue(row, column);
Number end = icd.getEndValue(row, column);
if (getNumberFormat() != null) {
result[3] = getNumberFormat().format(start);
result[4] = getNumberFormat().format(end);
}
else if (getDateFormat() != null) {
result[3] = getDateFormat().format(start);
result[4] = getDateFormat().format(end);
}
}
return result;
}
}