X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=source%2Fmir%2Fmisc%2FWebdbImage.java;h=136acb154e2fde1303d514626b0f3eccc1689a93;hb=1ba06c565ec314b8e189a25e7aead8b3a4ce3ad5;hp=99ed77f1dbf46437a7e58ea326ea3c76cf7ffa1b;hpb=d0a53f777c4cd00509d4ab4a5b53893e42007212;p=mir.git diff --git a/source/mir/misc/WebdbImage.java b/source/mir/misc/WebdbImage.java index 99ed77f1..136acb15 100755 --- a/source/mir/misc/WebdbImage.java +++ b/source/mir/misc/WebdbImage.java @@ -1,155 +1,157 @@ -package mir.misc; - -/** - * Title: - * Description: - * Copyright: Copyright (c) 2001 - * Company: Indymedia - * @author - * @version 1.0 - */ - -import java.io.*; -import javax.media.jai.*; -import com.sun.media.jai.codec.*; -import java.awt.image.renderable.ParameterBlock; - -public class WebdbImage -{ - - // imageTypes - public final static int WEBDB_JPG=0; - public final static int WEBDB_GIF=1; - - // default values for scaling - private int maxIconSize=120; - private int maxImageSize=640; - - private byte[] iconData; - private byte[] imageData; - private int imageType; - private int iconWidth; - private int iconHeight; - - // internal representation of the image - private PlanarImage planarImage; - - - // constructor - public WebdbImage(byte[] image, int type) - throws IOException - { - imageType=type; - planarImage = JAI.create("stream",new ByteArraySeekableStream(image)); - scaleImage(); - } - - public WebdbImage(byte[] image, int type, int iconMax) - throws IOException - { - imageType=type; - maxIconSize=iconMax; - planarImage = JAI.create("stream",new ByteArraySeekableStream(image)); - scaleImage(); - } - - public WebdbImage(byte[] image, int type, int iconMax, int imageMax) - throws IOException - { - imageType=type; - maxIconSize=iconMax; - maxImageSize=imageMax; - planarImage = JAI.create("stream",new ByteArraySeekableStream(image)); - scaleImage(); - } - - - // acc3ssor-methods - public int getIconWidth() throws IOException { - if (iconData==null) scaleIcon(); - return iconWidth; - } - - public int getIconHeight() throws IOException { - if (iconData==null) scaleIcon(); - return iconHeight; - } - - public int getImageWidth() { - return (int)planarImage.getWidth(); - } - - public int getImageHeight() { - return (int)planarImage.getHeight(); - } - - public byte[] getImage() { - if (imageData==null) { - ByteArrayOutputStream outStream = new ByteArrayOutputStream(); - - switch (imageType) { - case WEBDB_JPG: - JAI.create("encode", planarImage, outStream, "JPEG", null);break; - case WEBDB_GIF: - JAI.create("encode", planarImage, outStream, "JPEG", null);break; - default: - System.err.println("unknown image format: " + imageType); - } - - imageData = outStream.toByteArray(); - } - return imageData; - } - - public byte[] getIcon() - throws IOException - { - if (iconData == null) scaleIcon(); - return iconData; - } - - private void scaleImage() - throws java.io.IOException - { - if (maxImageSize>0 && ( getImageHeight()> maxImageSize|| getImageWidth() >maxImageSize)) - { - float scale; - if (getImageHeight() > getImageWidth()) - scale = (float)maxImageSize / (float)getImageHeight(); - else - scale = (float)maxImageSize / (float)getImageWidth(); - - InterpolationBilinear interp = new InterpolationBilinear(); - planarImage = JAI.create("scale", planarImage, scale, scale, 0.0F, 0.0F, interp); - } - } - - private void scaleIcon() - throws java.io.IOException - { - if (iconData==null) { - float scale; - if (getImageHeight() > getImageWidth()) - scale = (float)maxIconSize / (float)getImageHeight(); - else - scale = (float)maxIconSize / (float)getImageWidth(); - - InterpolationBilinear interp = new InterpolationBilinear(); - PlanarImage temp = JAI.create("scale", planarImage, scale, scale, 0.0F, 0.0F, interp); - ByteArrayOutputStream outStream = new ByteArrayOutputStream(); - /** @todo gif */ - switch (imageType) { - case WEBDB_JPG: - JAI.create("encode", temp, outStream, "JPEG", null);break; - case WEBDB_GIF: - JAI.create("encode", temp, outStream, "JPEG", null);break; - default: - System.err.println("unknown image format: " + imageType); - } - iconData = outStream.toByteArray(); - iconWidth=temp.getWidth(); - iconHeight=temp.getHeight(); - } - } - -} +/* + * Copyright (C) 2001, 2002 The Mir-coders group + * + * This file is part of Mir. + * + * Mir 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 2 of the License, or + * (at your option) any later version. + * + * Mir 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. + * + * You should have received a copy of the GNU General Public License + * along with Mir; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * In addition, as a special exception, The Mir-coders gives permission to link + * the code of this program with the com.oreilly.servlet library, any library + * licensed under the Apache Software License, The Sun (tm) Java Advanced + * Imaging library (JAI), The Sun JIMI library (or with modified versions of + * the above that use the same license as the above), and distribute linked + * combinations including the two. You must obey the GNU General Public + * License in all respects for all of the code used other than the above + * mentioned libraries. If you modify this file, you may extend this exception + * to your version of the file, but you are not obligated to do so. If you do + * not wish to do so, delete this exception statement from your version. + */ + +package mir.misc; + +/** + * Title: + * Description: + * Copyright: Copyright (c) 2002 Mir-coders + * @author $Author: idfx $ + * @version $Id: WebdbImage.java,v 1.12 2003/03/05 19:23:14 idfx Exp $ + */ + +import java.io.File; +import java.io.IOException; +import java.io.OutputStream; +import java.util.Random; + +import javax.media.jai.InterpolationBilinear; +import javax.media.jai.JAI; +import javax.media.jai.ParameterBlockJAI; +import javax.media.jai.PlanarImage; + +import mir.config.MirPropertiesConfiguration; + +import com.sun.media.jai.codec.FileSeekableStream; + +public class WebdbImage +{ + + // default values for scaling + private int maxIconSize; + private int maxImageSize; + + private int iconWidth; + private int iconHeight; + + Random r = new Random(); + + // internal representation of the image + private PlanarImage planarImage; + + // type of the image + private String _type; + + private WebdbImage() { + } + + // constructor + // takes a temporary file as a parameter + public WebdbImage(File f, String type) throws Exception { + // It has to be a FileSeekableStream cause the image conversion + // needs to seek backwards. + maxImageSize = MirPropertiesConfiguration.instance().getInt("Producer.Image.MaxSize"); + maxIconSize = MirPropertiesConfiguration.instance().getInt("Producer.Image.MaxIconSize"); + + planarImage = JAI.create("stream", new FileSeekableStream(f)); + _type = type; + scaleImage(); + } + + // acc3ssor-methods + // must be run after scaleIcon() + public int getIconWidth() throws IOException { + return iconWidth; + } + + // must be run after scaleIcon() + public int getIconHeight() throws IOException { + return iconHeight; + } + + public int getImageWidth() { + return (int) planarImage.getWidth(); + } + + public int getImageHeight() { + return (int) planarImage.getHeight(); + } + + public void setImage(OutputStream outStream) { + JAI.create("encode", planarImage, outStream, _type, null); + } + + public void setIcon(OutputStream outStream) throws IOException { + scaleIcon(outStream); + } + + private void scaleImage() throws java.io.IOException { + if (maxImageSize > 0 && + (getImageHeight() > maxImageSize || getImageWidth() > maxImageSize)) { + float scale; + ParameterBlockJAI params = new ParameterBlockJAI("scale"); + params.addSource(planarImage); + if (getImageHeight() > getImageWidth()) + scale = (float) maxImageSize / (float) getImageHeight(); + else + scale = (float) maxImageSize / (float) getImageWidth(); + + params.setParameter("xScale", scale); + params.setParameter("yScale", scale); + params.setParameter("xTrans", 0.0F); + params.setParameter("yTrans", 0.0F); + params.setParameter("interpolation", new InterpolationBilinear()); + planarImage = JAI.create("scale", params); + } + } + + private void scaleIcon(OutputStream outStream) throws java.io.IOException { + float scale; + ParameterBlockJAI params = new ParameterBlockJAI("scale"); + params.addSource(planarImage); + if (getImageHeight() > getImageWidth()) + scale = (float) maxIconSize / (float) getImageHeight(); + else + scale = (float) maxIconSize / (float) getImageWidth(); + + params.setParameter("xScale", scale); + params.setParameter("yScale", scale); + params.setParameter("xTrans", 0.0F); + params.setParameter("yTrans", 0.0F); + params.setParameter("interpolation", new InterpolationBilinear()); + PlanarImage temp = JAI.create("scale", params); + JAI.create("encode", temp, outStream, _type, null); + iconWidth = temp.getWidth(); + iconHeight = temp.getHeight(); + } + +} \ No newline at end of file