org.jfree.chart.util.ShapeList Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jfreechart Show documentation
Show all versions of jfreechart Show documentation
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.]
*
* --------------
* ShapeList.java
* --------------
* (C) Copyright 2000-present, by David Gilbert and Contributors.
*
* Original Author: David Gilbert;
* Contributors: -;
*/
package org.jfree.chart.util;
import java.awt.Shape;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
/**
* A table of {@link Shape} objects.
*/
public class ShapeList extends AbstractObjectList {
/**
* Creates a new list.
*/
public ShapeList() {
super();
}
/**
* Returns a {@link Shape} object from the list.
*
* @param index the index (zero-based).
*
* @return The object.
*/
public Shape getShape(int index) {
return (Shape) get(index);
}
/**
* Sets the {@link Shape} for an item in the list. The list is expanded
* if necessary.
*
* @param index the index (zero-based).
* @param shape the {@link Shape}.
*/
public void setShape(int index, Shape shape) {
set(index, shape);
}
/**
* Returns an independent copy of the list.
*
* @return A clone.
*
* @throws CloneNotSupportedException if an item in the list does not
* support cloning.
*/
@Override
public Object clone() throws CloneNotSupportedException {
return super.clone();
}
/**
* 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 == this) {
return true;
}
if (!(obj instanceof ShapeList)) {
return false;
}
ShapeList that = (ShapeList) obj;
int listSize = size();
for (int i = 0; i < listSize; i++) {
if (!ShapeUtils.equal((Shape) get(i), (Shape) that.get(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();
final int count = size();
stream.writeInt(count);
for (int i = 0; i < count; i++) {
final Shape shape = getShape(i);
if (shape != null) {
stream.writeInt(i);
SerialUtils.writeShape(shape, 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();
final int count = stream.readInt();
for (int i = 0; i < count; i++) {
final int index = stream.readInt();
if (index != -1) {
setShape(index, SerialUtils.readShape(stream));
}
}
}
}