com.lowagie.text.ImgWMF Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of itext2 Show documentation
Show all versions of itext2 Show documentation
Itext is a java library to create and manipulate PDFs.
This is a fork of version 2.1.7 the last MPL/LGPL version.
It's focused basically on mantain compatibility with newer bouncycastle releases and small bugfixes.
/*
* $Id: ImgWMF.java 3373 2008-05-12 16:21:24Z xlv $
*
* Copyright 1999, 2000, 2001, 2002 by Paulo Soares.
*
* 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;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import com.lowagie.text.pdf.PdfTemplate;
import com.lowagie.text.pdf.codec.wmf.InputMeta;
import com.lowagie.text.pdf.codec.wmf.MetaDo;
/**
* An ImgWMF is the representation of a windows metafile
* that has to be inserted into the document
*
* @see Element
* @see Image
*/
public class ImgWMF extends Image {
// Constructors
ImgWMF(Image image) {
super(image);
}
/**
* Constructs an ImgWMF-object, using an url.
*
* @param url the URL where the image can be found
* @throws BadElementException on error
* @throws IOException on error
*/
public ImgWMF(URL url) throws BadElementException, IOException {
super(url);
processParameters();
}
/**
* Constructs an ImgWMF-object, using a filename.
*
* @param filename a String-representation of the file that contains the image.
* @throws BadElementException on error
* @throws MalformedURLException on error
* @throws IOException on error
*/
public ImgWMF(String filename) throws BadElementException, MalformedURLException, IOException {
this(Utilities.toURL(filename));
}
/**
* Constructs an ImgWMF-object from memory.
*
* @param img the memory image
* @throws BadElementException on error
* @throws IOException on error
*/
public ImgWMF(byte[] img) throws BadElementException, IOException {
super((URL)null);
rawData = img;
originalData = img;
processParameters();
}
/**
* This method checks if the image is a valid WMF and processes some parameters.
* @throws BadElementException
* @throws IOException
*/
private void processParameters() throws BadElementException, IOException {
type = IMGTEMPLATE;
originalType = ORIGINAL_WMF;
InputStream is = null;
try {
String errorID;
if (rawData == null){
is = url.openStream();
errorID = url.toString();
}
else{
is = new java.io.ByteArrayInputStream(rawData);
errorID = "Byte array";
}
InputMeta in = new InputMeta(is);
if (in.readInt() != 0x9AC6CDD7) {
throw new BadElementException(errorID + " is not a valid placeable windows metafile.");
}
in.readWord();
int left = in.readShort();
int top = in.readShort();
int right = in.readShort();
int bottom = in.readShort();
int inch = in.readWord();
dpiX = 72;
dpiY = 72;
scaledHeight = (float)(bottom - top) / inch * 72f;
setTop(scaledHeight);
scaledWidth = (float)(right - left) / inch * 72f;
setRight(scaledWidth);
}
finally {
if (is != null) {
is.close();
}
plainWidth = getWidth();
plainHeight = getHeight();
}
}
/** Reads the WMF into a template.
* @param template the template to read to
* @throws IOException on error
* @throws DocumentException on error
*/
public void readWMF(PdfTemplate template) throws IOException, DocumentException {
setTemplateData(template);
template.setWidth(getWidth());
template.setHeight(getHeight());
InputStream is = null;
try {
if (rawData == null){
is = url.openStream();
}
else{
is = new java.io.ByteArrayInputStream(rawData);
}
MetaDo meta = new MetaDo(is, template);
meta.readAll();
}
finally {
if (is != null) {
is.close();
}
}
}
}