/*
* $Id: ImgWMF.java 4065 2009-09-16 23:09:11Z psoares33 $
* $Name$
*
* 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.error_messages.
MessageLocalization;
import com.lowagie.text.pdf.
PdfTemplate;
import com.lowagie.text.pdf.codec.wmf.
InputMeta;
import com.lowagie.text.pdf.codec.wmf.
MetaDo;
/**
* An <CODE>ImgWMF</CODE> 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 <CODE>ImgWMF</CODE>-object, using an <VAR>url</VAR>.
*
* @param url the <CODE>URL</CODE> 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 <CODE>ImgWMF</CODE>-object, using a <VAR>filename</VAR>.
*
* @param filename a <CODE>String</CODE>-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,
IOException {
this(
Utilities.
toURL(
filename));
}
/**
* Constructs an <CODE>ImgWMF</CODE>-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(
MessageLocalization.
getComposedMessage("1.is.not.a.valid.placeable.windows.metafile",
errorID));
}
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();
}
}
}
}