86 lines
2.5 KiB
Java
86 lines
2.5 KiB
Java
//******************************************************************************
|
|
//
|
|
// File: IDATChunk.java
|
|
// Package: edu.rit.image.png
|
|
// Unit: Class edu.rit.image.png.IDATChunk
|
|
//
|
|
// This Java source file is copyright (C) 2013 by Alan Kaminsky. All rights
|
|
// reserved. For further information, contact the author, Alan Kaminsky, at
|
|
// ark@cs.rit.edu.
|
|
//
|
|
// This Java source file is part of the Parallel Java 2 Library ("PJ2"). PJ2 is
|
|
// free software; you can redistribute it and/or modify it under the terms of
|
|
// the GNU General Public License as published by the Free Software Foundation;
|
|
// either version 3 of the License, or (at your option) any later version.
|
|
//
|
|
// PJ2 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.
|
|
//
|
|
// A copy of the GNU General Public License is provided in the file gpl.txt. You
|
|
// may also obtain a copy of the GNU General Public License on the World Wide
|
|
// Web at http://www.gnu.org/licenses/gpl.html.
|
|
//
|
|
//******************************************************************************
|
|
|
|
package edu.rit.image.png;
|
|
|
|
/**
|
|
* Class IDATChunk provides an image data chunk stored in a PNG file.
|
|
*
|
|
* @author Alan Kaminsky
|
|
* @version 22-May-2013
|
|
*/
|
|
public class IDATChunk
|
|
extends Chunk
|
|
{
|
|
|
|
// Exported constructors.
|
|
|
|
/**
|
|
* Construct a new uninitialized IDAT chunk. This constructor is for use
|
|
* only by object deserialization.
|
|
*/
|
|
public IDATChunk()
|
|
{
|
|
super();
|
|
}
|
|
|
|
/**
|
|
* Construct a new IDAT chunk with data taken from the given array.
|
|
*
|
|
* @param data Array of chunk data.
|
|
*
|
|
* @exception NullPointerException
|
|
* (unchecked exception) Thrown if <TT>data</TT> is null.
|
|
*/
|
|
public IDATChunk
|
|
(byte[] data)
|
|
{
|
|
this (data, 0, data.length);
|
|
}
|
|
|
|
/**
|
|
* Construct a new IDAT chunk with data taken from a portion of the given
|
|
* array.
|
|
*
|
|
* @param data Array of chunk data.
|
|
* @param off Index of first byte of chunk data.
|
|
* @param len Number of bytes of chunk data.
|
|
*
|
|
* @exception NullPointerException
|
|
* (unchecked exception) Thrown if <TT>data</TT> is null.
|
|
* @exception IndexOutOfBoundsException
|
|
* (unchecked exception) Thrown if <TT>off</TT> < 0, <TT>len</TT>
|
|
* < 0, or <TT>off+len</TT> > <TT>data.length</TT>.
|
|
*/
|
|
public IDATChunk
|
|
(byte[] data,
|
|
int off,
|
|
int len)
|
|
{
|
|
super (0x49444154, data, off, len);
|
|
}
|
|
|
|
}
|