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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.]
*
* --------------
* PaintList.java
* --------------
* (C) Copyright 2000-present, by David Gilbert and Contributors.
*
* Original Author: David Gilbert;
* Contributors: -;
*/
package org.jfree.chart.util;
import java.awt.Paint;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
/**
* A table of {@link Paint} objects.
*/
public class PaintList extends AbstractObjectList {
private static final long serialVersionUID = -708669381577938219L;
/**
* Creates a new list.
*/
public PaintList() {
super();
}
/**
* Returns a {@link Paint} object from the list.
*
* @param index the index (zero-based).
*
* @return The object.
*/
public Paint getPaint(int index) {
return (Paint) get(index);
}
/**
* Sets the {@link Paint} for an item in the list. The list is expanded if necessary.
*
* @param index the index (zero-based).
* @param paint the {@link Paint}.
*/
public void setPaint(int index, Paint paint) {
set(index, paint);
}
/**
* Tests the list for equality with another object (typically also a list).
*
* @param obj the other object ({@code null} permitted).
*
* @return A boolean.
*/
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (obj == this) {
return true;
}
if (!(obj instanceof PaintList)) {
return false;
}
PaintList that = (PaintList) obj;
int listSize = size();
for (int i = 0; i < listSize; i++) {
if (!PaintUtils.equal(getPaint(i), that.getPaint(i))) {
return false;
}
}
return true;
}
/**
* Returns a hash code value for the object.
*
* @return the hashcode
*/
@Override
public int hashCode() {
return super.hashCode();
}
/**
* Provides serialization support.
*
* @param stream the output stream.
*
* @throws IOException if there is an I/O error.
*/
private void writeObject(ObjectOutputStream stream) throws IOException {
stream.defaultWriteObject();
int count = size();
stream.writeInt(count);
for (int i = 0; i < count; i++) {
Paint paint = getPaint(i);
if (paint != null) {
stream.writeInt(i);
SerialUtils.writePaint(paint, stream);
}
else {
stream.writeInt(-1);
}
}
}
/**
* Provides serialization support.
*
* @param stream the input stream.
*
* @throws IOException if there is an I/O error.
* @throws ClassNotFoundException if there is a classpath problem.
*/
private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {
stream.defaultReadObject();
int count = stream.readInt();
for (int i = 0; i < count; i++) {
int index = stream.readInt();
if (index != -1) {
setPaint(index, SerialUtils.readPaint(stream));
}
}
}
}