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Java > Open Source Codes > org > eclipse > swt > internal > image > JPEGVariableSizeSegment


1 /*******************************************************************************
2  * Copyright (c) 2000, 2003 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.swt.internal.image;
12
13
14 import org.eclipse.swt.*;
15
16 abstract class JPEGVariableSizeSegment extends JPEGSegment {
17
18     public JPEGVariableSizeSegment(byte[] reference) {
19         super(reference);
20     }
21     
22     public JPEGVariableSizeSegment(LEDataInputStream byteStream) {
23         try {
24             byte[] header = new byte[4];
25             byteStream.read(header);
26             reference = header; // to use getSegmentLength()
27 byte[] contents = new byte[getSegmentLength() + 2];
28             contents[0] = header[0];
29             contents[1] = header[1];
30             contents[2] = header[2];
31             contents[3] = header[3];
32             byteStream.read(contents, 4, contents.length - 4);
33             reference = contents;
34         } catch (Exception JavaDoc e) {
35             SWT.error(SWT.ERROR_IO, e);
36         }
37     }
38 }
39
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