From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001 From: tknall Date: Fri, 1 Dec 2006 12:20:24 +0000 Subject: Initial import of release 2.2. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../com/lowagie/text/rtf/graphic/RtfImage.java | 306 +++++++++++++++++++++ 1 file changed, 306 insertions(+) create mode 100644 src/main/java/com/lowagie/text/rtf/graphic/RtfImage.java (limited to 'src/main/java/com/lowagie/text/rtf/graphic') diff --git a/src/main/java/com/lowagie/text/rtf/graphic/RtfImage.java b/src/main/java/com/lowagie/text/rtf/graphic/RtfImage.java new file mode 100644 index 0000000..c0446f8 --- /dev/null +++ b/src/main/java/com/lowagie/text/rtf/graphic/RtfImage.java @@ -0,0 +1,306 @@ +/* + * $Id: RtfImage.java,v 1.23 2005/12/24 13:14:28 hallm Exp $ + * $Name: $ + * + * Copyright 2001, 2002, 2003, 2004 by Mark Hall + * + * 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. + * + * If you didn't download this code from the following link, you should check if + * you aren't using an obsolete version: + * http://www.lowagie.com/iText/ + */ + +package com.lowagie.text.rtf.graphic; + +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.IOException; +import java.io.InputStream; + +import com.lowagie.text.DocumentException; +import com.lowagie.text.Element; +import com.lowagie.text.Image; +import com.lowagie.text.pdf.codec.wmf.MetaDo; +import com.lowagie.text.rtf.RtfElement; +import com.lowagie.text.rtf.document.RtfDocument; +import com.lowagie.text.rtf.style.RtfParagraphStyle; +import com.lowagie.text.rtf.text.RtfParagraph; + + +/** + * The RtfImage contains one image. Supported image types are jpeg, png, wmf, bmp. + * + * @version $Revision: 1.23 $ + * @author Mark Hall (mhall@edu.uni-klu.ac.at) + * @author Paulo Soares + */ +public class RtfImage extends RtfElement { + + /** + * Constant for the shape/picture group + */ + private static final byte[] PICTURE_GROUP = "\\*\\shppict".getBytes(); + /** + * Constant for a picture + */ + private static final byte[] PICTURE = "\\pict".getBytes(); + /** + * Constant for a jpeg image + */ + private static final byte[] PICTURE_JPEG = "\\jpegblip".getBytes(); + /** + * Constant for a png image + */ + private static final byte[] PICTURE_PNG = "\\pngblip".getBytes(); + /** + * Constant for a bmp image + */ + private static final byte[] PICTURE_BMP = "\\dibitmap0".getBytes(); + /** + * Constant for a wmf image + */ + private static final byte[] PICTURE_WMF = "\\wmetafile8".getBytes(); + /** + * Constant for the picture width + */ + private static final byte[] PICTURE_WIDTH = "\\picw".getBytes(); + /** + * Constant for the picture height + */ + private static final byte[] PICTURE_HEIGHT = "\\pich".getBytes(); + /** + * Constant for the picture width scale + */ + private static final byte[] PICTURE_SCALED_WIDTH = "\\picwgoal".getBytes(); + /** + * Constant for the picture height scale + */ + private static final byte[] PICTURE_SCALED_HEIGHT = "\\pichgoal".getBytes(); + + /** + * The type of image this is. + */ + private int imageType = Image.ORIGINAL_NONE; + /** + * The actual image. Already formated for direct inclusion in the rtf document + */ + private byte[] image = new byte[0]; + /** + * The alignment of this picture + */ + private int alignment = Element.ALIGN_LEFT; + /** + * The width of this picture + */ + private float width = 0; + /** + * The height of this picutre + */ + private float height = 0; + /** + * The intended display width of this picture + */ + private float plainWidth = 0; + /** + * The intended display height of this picture + */ + private float plainHeight = 0; + /** + * Whether this RtfImage is a top level element and should + * be an extra paragraph. + */ + private boolean topLevelElement = false; + + /** + * Constructs a RtfImage for an Image. + * + * @param doc The RtfDocument this RtfImage belongs to + * @param image The Image that this RtfImage wraps + * @throws DocumentException If an error occured accessing the image content + */ + public RtfImage(RtfDocument doc, Image image) throws DocumentException { + super(doc); + imageType = image.getOriginalType(); + if (!(imageType == Image.ORIGINAL_JPEG || imageType == Image.ORIGINAL_BMP + || imageType == Image.ORIGINAL_PNG || imageType == Image.ORIGINAL_WMF)) { + throw new DocumentException("Only BMP, PNG, WMF and JPEG images are supported by the RTF Writer"); + } + alignment = image.alignment(); + width = image.width(); + height = image.height(); + plainWidth = image.plainWidth(); + plainHeight = image.plainHeight(); + this.image = getImage(image); + } + + /** + * Extracts the image data from the Image. The data is formated for direct inclusion + * in a rtf document + * + * @param image The Image for which to extract the content + * @return The image data formated for the rtf document + * @throws DocumentException If an error occurs accessing the image content + */ + private byte[] getImage(Image image) throws DocumentException { + ByteArrayOutputStream imageTemp = new ByteArrayOutputStream(); + try { + InputStream imageIn; + if (imageType == Image.ORIGINAL_BMP) { + imageIn = new ByteArrayInputStream(MetaDo.wrapBMP(image)); + } else { + if (image.getOriginalData() == null) { + imageIn = image.url().openStream(); + } else { + imageIn = new ByteArrayInputStream(image.getOriginalData()); + } + if (imageType == Image.ORIGINAL_WMF) { //remove the placeable header + long skipLength = 22; + while(skipLength > 0) { + skipLength = skipLength - imageIn.skip(skipLength); + } + } + } + int buffer = 0; + int count = 0; + while((buffer = imageIn.read()) != -1) { + String helperStr = Integer.toHexString(buffer); + if (helperStr.length() < 2) helperStr = "0" + helperStr; + imageTemp.write(helperStr.getBytes()); + count++; + if (count == 64) { + imageTemp.write((byte) '\n'); + count = 0; + } + } + } catch(IOException ioe) { + throw new DocumentException(ioe.getMessage()); + } + return imageTemp.toByteArray(); + } + + /** + * Writes the RtfImage content + * + * @return the RtfImage content + */ + public byte[] write() { + ByteArrayOutputStream result = new ByteArrayOutputStream(); + try { + if(this.topLevelElement) { + result.write(RtfParagraph.PARAGRAPH_DEFAULTS); + } + switch(alignment) { + case Element.ALIGN_LEFT: + result.write(RtfParagraphStyle.ALIGN_LEFT); + break; + case Element.ALIGN_RIGHT: + result.write(RtfParagraphStyle.ALIGN_RIGHT); + break; + case Element.ALIGN_CENTER: + result.write(RtfParagraphStyle.ALIGN_CENTER); + break; + case Element.ALIGN_JUSTIFIED: + result.write(RtfParagraphStyle.ALIGN_JUSTIFY); + break; + } + result.write(OPEN_GROUP); + result.write(PICTURE_GROUP); + result.write(OPEN_GROUP); + result.write(PICTURE); + switch(imageType) { + case Image.ORIGINAL_JPEG: + result.write(PICTURE_JPEG); + break; + case Image.ORIGINAL_PNG: + result.write(PICTURE_PNG); + break; + case Image.ORIGINAL_WMF: + case Image.ORIGINAL_BMP: + result.write(PICTURE_WMF); + break; + } + result.write(PICTURE_WIDTH); + result.write(intToByteArray((int) width)); + result.write(PICTURE_HEIGHT); + result.write(intToByteArray((int) height)); + if(width != plainWidth || this.imageType == Image.ORIGINAL_BMP) { + result.write(PICTURE_SCALED_WIDTH); + result.write(intToByteArray((int) (plainWidth * RtfElement.TWIPS_FACTOR))); + } + if(height != plainHeight || this.imageType == Image.ORIGINAL_BMP) { + result.write(PICTURE_SCALED_HEIGHT); + result.write(intToByteArray((int) (plainHeight * RtfElement.TWIPS_FACTOR))); + } + result.write(DELIMITER); + result.write((byte) '\n'); + result.write(image); + result.write(CLOSE_GROUP); + result.write(CLOSE_GROUP); + if(this.topLevelElement) { + result.write(RtfParagraph.PARAGRAPH); + result.write(RtfParagraph.PARAGRAPH); + } + result.write((byte) '\n'); + } catch(IOException ioe) { + ioe.printStackTrace(); + } + return result.toByteArray(); + } + + /** + * Sets the alignment of this RtfImage. Uses the alignments from com.lowagie.text.Element. + * + * @param alignment The alignment to use. + */ + public void setAlignment(int alignment) { + this.alignment = alignment; + } + + /** + * Set whether this RtfImage should behave like a top level element + * and enclose itself in a paragraph. + * + * @param topLevelElement Whether to behave like a top level element. + */ + public void setTopLevelElement(boolean topLevelElement) { + this.topLevelElement = topLevelElement; + } +} -- cgit v1.2.3