01: /*
02: * ============================================================================
03: * GNU Lesser General Public License
04: * ============================================================================
05: *
06: * JasperReports - Free Java report-generating library.
07: * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
08: *
09: * 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.BufferedImage;
31: import java.io.ByteArrayOutputStream;
32: import java.io.IOException;
33:
34: import net.sf.jasperreports.engine.JRException;
35: import net.sf.jasperreports.engine.JRRenderable;
36:
37: import com.keypoint.PngEncoderB;
38: import com.sun.image.codec.jpeg.JPEGCodec;
39: import com.sun.image.codec.jpeg.JPEGEncodeParam;
40: import com.sun.image.codec.jpeg.JPEGImageEncoder;
41:
42: /**
43: * @author Teodor Danciu (teodord@users.sourceforge.net)
44: * @version $Id: JRDefaultImageEncoder.java 1664 2007-03-26 09:48:03Z lucianc $
45: */
46: public class JRDefaultImageEncoder extends JRAbstractImageEncoder {
47:
48: /**
49: *
50: */
51: public byte[] encode(BufferedImage bi, byte imageType)
52: throws JRException {
53: byte[] bytes = null;
54:
55: switch (imageType) {
56: case JRRenderable.IMAGE_TYPE_PNG: {
57: bytes = new PngEncoderB(bi).pngEncode();
58: break;
59: }
60: case JRRenderable.IMAGE_TYPE_JPEG: {
61: ByteArrayOutputStream baos = new ByteArrayOutputStream();
62:
63: try {
64: JPEGImageEncoder encoder = JPEGCodec
65: .createJPEGEncoder(baos);
66: JPEGEncodeParam param = encoder
67: .getDefaultJPEGEncodeParam(bi);
68: param.setQuality(1f, true);//1f = JPG_QUALITY
69: encoder.encode(bi, param);
70: } catch (IOException e) {
71: throw new JRException(e);
72: }
73:
74: bytes = baos.toByteArray();
75: break;
76: }
77: case JRRenderable.IMAGE_TYPE_GIF:
78: case JRRenderable.IMAGE_TYPE_TIFF:
79: case JRRenderable.IMAGE_TYPE_UNKNOWN:
80: default: {
81: throw new JRException("Image type \"" + imageType
82: + "\" not supported by this image encoder.");
83: }
84: }
85:
86: return bytes;
87: }
88:
89: }
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