2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with the com.oreilly.servlet library, any library
22 * licensed under the Apache Software License, The Sun (tm) Java Advanced
23 * Imaging library (JAI), The Sun JIMI library (or with modified versions of
24 * the above that use the same license as the above), and distribute linked
25 * combinations including the two. You must obey the GNU General Public
26 * License in all respects for all of the code used other than the above
27 * mentioned libraries. If you modify this file, you may extend this exception
28 * to your version of the file, but you are not obligated to do so. If you do
29 * not wish to do so, delete this exception statement from your version.
37 * Copyright: Copyright (c) 2001
44 import java.util.Vector;
45 import javax.media.jai.*;
46 import com.sun.media.jai.codec.*;
47 import java.awt.image.renderable.ParameterBlock;
49 public class WebdbImage
52 // default values for scaling
53 private int maxIconSize=120;
54 private int maxImageSize=640;
56 private byte[] iconData;
57 private byte[] imageData;
58 private int iconWidth;
59 private int iconHeight;
61 // internal representation of the image
62 private PlanarImage planarImage;
69 public WebdbImage(byte[] image, String type)
72 planarImage = JAI.create("stream",new ByteArraySeekableStream(image));
77 public WebdbImage(byte[] image, String type, int iconMax)
81 planarImage = JAI.create("stream",new ByteArraySeekableStream(image));
86 public WebdbImage(byte[] image, String type, int iconMax, int imageMax)
90 maxImageSize=imageMax;
91 planarImage = JAI.create("stream",new ByteArraySeekableStream(image));
97 public int getIconWidth() throws IOException {
98 if (iconData==null) scaleIcon();
102 public int getIconHeight() throws IOException {
103 if (iconData==null) scaleIcon();
107 public int getImageWidth() {
108 return (int)planarImage.getWidth();
111 public int getImageHeight() {
112 return (int)planarImage.getHeight();
115 public byte[] getImage() {
116 if (imageData==null) {
117 ByteArrayOutputStream outStream = new ByteArrayOutputStream();
118 JAI.create("encode", planarImage, outStream, _type, null);
119 imageData = outStream.toByteArray();
124 public byte[] getIcon()
127 if (iconData == null) scaleIcon();
131 private void scaleImage()
132 throws java.io.IOException
134 if (maxImageSize>0 && ( getImageHeight()> maxImageSize|| getImageWidth() >maxImageSize))
136 System.out.println("SCALE_IMAGE");
138 ParameterBlockJAI params = new ParameterBlockJAI("scale");
139 params.addSource(planarImage);
140 if (getImageHeight() > getImageWidth())
141 scale = (float)maxImageSize / (float)getImageHeight();
143 scale = (float)maxImageSize / (float)getImageWidth();
145 params.setParameter("xScale", scale);
146 params.setParameter("yScale", scale);
147 params.setParameter("xTrans",0.0F);
148 params.setParameter("yTrans",0.0F);
149 params.setParameter("interpolation",new InterpolationBilinear());
150 planarImage = JAI.create("scale", params);
154 private void scaleIcon()
155 throws java.io.IOException
157 System.out.println("SCALE_ICON");
158 if (iconData==null) {
160 ParameterBlockJAI params = new ParameterBlockJAI("scale");
161 params.addSource(planarImage);
162 if (getImageHeight() > getImageWidth())
163 scale = (float)maxIconSize / (float)getImageHeight();
165 scale = (float)maxIconSize / (float)getImageWidth();
167 params.setParameter("xScale", scale);
168 params.setParameter("yScale", scale);
169 params.setParameter("xTrans",0.0F);
170 params.setParameter("yTrans",0.0F);
171 params.setParameter("interpolation",new InterpolationBilinear());
172 PlanarImage temp = JAI.create("scale", params);
173 ByteArrayOutputStream outStream = new ByteArrayOutputStream();
174 JAI.create("encode", temp, outStream, _type, null);
175 iconData = outStream.toByteArray();
176 iconWidth=temp.getWidth();
177 iconHeight=temp.getHeight();