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Java > Open Source Codes > net > sf > jasperreports > engine > util > JRJdk13ImageReader


1 /*
2  * ============================================================================
3  * GNU Lesser General Public License
4  * ============================================================================
5  *
6  * JasperReports - Free Java report-generating library.
7  * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22  *
23  * JasperSoft Corporation
24  * 303 Second Street, Suite 450 North
25  * San Francisco, CA 94107
26  * http://www.jaspersoft.com
27  */
28 package net.sf.jasperreports.engine.util;
29
30 import java.awt.Image JavaDoc;
31 import java.awt.MediaTracker JavaDoc;
32 import java.awt.Panel JavaDoc;
33 import java.awt.Toolkit JavaDoc;
34
35 import net.sf.jasperreports.engine.JRException;
36
37
38 /**
39  * @author Teodor Danciu (teodord@users.sourceforge.net)
40  * @version $Id: JRImageLoader.java 1229 2006-04-19 13:27:35 +0300 (Wed, 19 Apr 2006) teodord $
41  */
42 public class JRJdk13ImageReader implements JRImageReader
43 {
44
45     
46     /**
47      *
48      */
49     public Image JavaDoc readImage(byte[] bytes) throws JRException
50     {
51         Image JavaDoc image = Toolkit.getDefaultToolkit().createImage(bytes);
52
53         MediaTracker JavaDoc tracker = new MediaTracker JavaDoc(new Panel JavaDoc());
54         tracker.addImage(image, 0);
55         try
56         {
57             tracker.waitForID(0);
58         }
59         catch (Exception JavaDoc e)
60         {
61             //image = null;
62 throw new JRException(e);
63         }
64
65         if(tracker.isErrorID(0))
66         {
67             throw new JRException("Image read failed.");
68         }
69
70         return image;
71     }
72
73
74 }
75
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