/*
* Copyright (C) 2000 - 2008 TagServlet Ltd
*
* This file is part of Open BlueDragon (OpenBD) CFML Server Engine.
*
* OpenBD is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Free Software Foundation,version 3.
*
* OpenBD 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenBD. If not, see http://www.gnu.org/licenses/
*
* Additional permission under GNU GPL version 3 section 7
*
* If you modify this Program, or any covered work, by linking or combining
* it with any of the JARS listed in the README.txt (or a modified version of
* (that library), containing parts covered by the terms of that JAR, the
* licensors of this Program grant you additional permission to convey the
* resulting work.
* README.txt @ http://www.openbluedragon.org/license/README.txt
*
* http://www.openbluedragon.org/
*/
package com.newatlanta.bluedragon;
import java.io.Serializable;
import java.text.DateFormat;
import java.text.NumberFormat;
import java.util.Date;
import org.jfree.chart.labels.StandardXYItemLabelGenerator;
import org.jfree.data.xy.XYDataset;
import org.jfree.util.PublicCloneable;
/**
* A standard item label generator for plots that use data from an
* {@link org.jfree.data.xy.XYDataset}.
*/
public class XYItemLabelGenerator extends StandardXYItemLabelGenerator
implements org.jfree.chart.labels.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 XYItemLabelGenerator() {
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</code> not
* permitted).
* @param xFormat the format object for the x values (<code>null</code>
* not permitted).
* @param yFormat the format object for the y values (<code>null</code>
* not permitted).
*/
public XYItemLabelGenerator(String formatString,
NumberFormat xFormat,
NumberFormat yFormat) {
super(formatString, xFormat, yFormat);
}
/**
* Creates an item label generator using the specified number formatters.
*
* @param formatString the item label format string (<code>null</code>
* not permitted).
* @param xFormat the format object for the x values (<code>null</code>
* not permitted).
* @param yFormat the format object for the y values (<code>null</code>
* not permitted).
*/
public XYItemLabelGenerator(String formatString,
DateFormat xFormat,
NumberFormat yFormat) {
super(formatString, xFormat, yFormat);
}
/**
* Creates a label generator using the specified date formatters.
*
* @param formatString the label format string (<code>null</code> not
* permitted).
* @param xFormat the format object for the x values (<code>null</code>
* not permitted).
* @param yFormat the format object for the y values (<code>null</code>
* not permitted).
*/
public XYItemLabelGenerator(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</code> not permitted).
* @param series the series index (zero-based).
* @param item the item index (zero-based).
*
* @return The label text (possibly <code>null</code>).
*/
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.
*/
public Object clone() throws CloneNotSupportedException {
return super.clone();
}
/**
* Tests this object for equality with an arbitrary object.
*
* @param obj the other object (<code>null</code> permitted).
*
* @return A boolean.
*/
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof StandardXYItemLabelGenerator) {
return super.equals(obj);
}
return false;
}
protected Object[] createItemArray(XYDataset dataset, int series, int item) {
Object[] result = new Object[5];
result[0] = dataset.getSeriesKey(series).toString();
double x = dataset.getXValue(series, item);
if (Double.isNaN(x) && dataset.getX(series, item) == null) {
result[1] = "null"; //this.nullXString;
}
else {
if (this.getXDateFormat() != null) {
result[1] = this.getXDateFormat().format(new Date((long) x));
}
else {
result[1] = this.getXFormat().format(x);
}
}
double y = dataset.getYValue(series, item);
if (Double.isNaN(y) && dataset.getY(series, item) == null) {
result[2] = "null"; //this.nullYString;
}
else {
if (this.getYDateFormat() != null) {
result[2] = this.getYDateFormat().format(new Date((long) y));
}
else {
result[2] = this.getYFormat().format(y);
}
double total = calculateYTotal(dataset, series);
double percent = y / total;
result[3] = NumberFormat.getPercentInstance().format(percent);
if (this.getYFormat() != null) {
result[4] = this.getYFormat().format(total);
}
else if (this.getYDateFormat() != null) {
//result[4] = this.getDateFormat().format(total);
}
}
return result;
}
private static double calculateYTotal(XYDataset dataset, int series)
{
double total = 0;
int numItems = dataset.getItemCount(series);
for ( int i = 0; i < numItems; i++ )
total += dataset.getYValue(series,i);
return total;
}
}