com.lowagie.text.ImageLoader Maven / Gradle / Ivy
/*
*
* Copyright 2018 Andreas Rosdal
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library 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 Library general Public License for more
* details.
*
*/
package com.lowagie.text;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.net.URL;
import javax.imageio.ImageIO;
/**
* Loads image files such as PNG, JPEG, GIF, TIFF and BMP.
*
* TODO: The goal of this class is to use Java ImageIO to parse images and metadata,
* and embed the image in the PDF in the best way (the compressed image format, not the raw pixels).
*
*
* We don't want to maintain our own image codecs.
*
* @author Andreas Rosdal
*/
public class ImageLoader {
/**
* Creates an Image from a PNG image file in an URL.
*
* @param url url of the image
* @return an object of type Image
*/
public static Image getPngImage(URL url) {
try (InputStream is = url.openStream()) {
BufferedImage bufferedImage = ImageIO.read(is);
return Image.getInstance(bufferedImage, null, false);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
public static Image getGifImage(URL url) {
try (InputStream is = url.openStream()) {
BufferedImage bufferedImage = ImageIO.read(is);
return Image.getInstance(bufferedImage, null, false);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
public static Image getTiffImage(URL url) {
try (InputStream is = url.openStream()) {
BufferedImage bufferedImage = ImageIO.read(is);
return Image.getInstance(bufferedImage, null, false);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
public static Image getBmpImage(URL url) {
try (InputStream is = url.openStream()) {
BufferedImage bufferedImage = ImageIO.read(is);
return Image.getInstance(bufferedImage, null, false);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
/**
* Creates an Image from a JPEG image file in an URL.
*
* @param url url of the image
* @return an object of type Image
*/
public static Image getJpegImage(URL url) {
try (InputStream is = url.openStream()) {
byte[] imageBytes = Utilities.toByteArray(is);
return new Jpeg(imageBytes);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
public static Image getJpeg2000Image(URL url) {
try (InputStream is = url.openStream()) {
byte[] imageBytes = Utilities.toByteArray(is);
return new Jpeg2000(imageBytes);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
public static Image getGifImage(byte[] imageData) {
try (InputStream is = new ByteArrayInputStream(imageData)) {
BufferedImage bufferedImage = ImageIO.read(is);
return Image.getInstance(bufferedImage, null, false);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
public static Image getPngImage(byte[] imageData) {
try (InputStream is = new ByteArrayInputStream(imageData)) {
BufferedImage bufferedImage = ImageIO.read(is);
return Image.getInstance(bufferedImage, null, false);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
public static Image getBmpImage(byte[] imageData) {
try (InputStream is = new ByteArrayInputStream(imageData)) {
BufferedImage bufferedImage = ImageIO.read(is);
return Image.getInstance(bufferedImage, null, false);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
/**
* Creates an Image from an array of tiff image bytes.
*
* @param imageData bytes of the tiff image
* @return an objet of type Image
*/
public static Image getTiffImage(byte[] imageData) {
try (InputStream is = new ByteArrayInputStream(imageData)) {
BufferedImage bufferedImage = ImageIO.read(is);
return Image.getInstance(bufferedImage, null, false);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
/**
* Creates an Image from a JPEG image file in a byte array.
*
* @param imageData bytes of the image
* @return an object of type Image
*/
public static Image getJpegImage(byte[] imageData) {
try {
return new Jpeg(imageData);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
public static Image getJpeg2000Image(byte[] imageData) {
try {
return new Jpeg2000(imageData);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
}