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- /*
- ============================================================================
- The Apache Software License, Version 1.1
- ============================================================================
- Copyright (C) 1999 The Apache Software Foundation. All rights reserved.
- Redistribution and use in source and binary forms, with or without modifica-
- tion, are permitted provided that the following conditions are met:
- 1. Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
- 3. The end-user documentation included with the redistribution, if any, must
- include the following acknowledgment: "This product includes software
- developed by the Apache Software Foundation (http://www.apache.org/)."
- Alternately, this acknowledgment may appear in the software itself, if
- and wherever such third-party acknowledgments normally appear.
- 4. The names "Fop" and "Apache Software Foundation" must not be used to
- endorse or promote products derived from this software without prior
- written permission. For written permission, please contact
- apache@apache.org.
- 5. Products derived from this software may not be called "Apache", nor may
- "Apache" appear in their name, without prior written permission of the
- Apache Software Foundation.
- THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
- INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
- DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- This software consists of voluntary contributions made by many individuals
- on behalf of the Apache Software Foundation and was originally created by
- James Tauber <jtauber@jtauber.com>. For more information on the Apache
- Software Foundation, please see <http://www.apache.org/>.
- */
-
- package org.apache.fop.image.analyser;
-
- // Java
- import java.io.BufferedInputStream;
- import java.io.IOException;
-
- import org.w3c.dom.svg.SVGDocument;
- import org.w3c.dom.svg.SVGSVGElement;
-
- // FOP
- import org.apache.fop.svg.SVGDriver;
- import org.apache.fop.messaging.*;
- import org.apache.fop.image.SVGImage;
-
- import org.xml.sax.InputSource;
- import org.xml.sax.XMLReader;
-
- /**
- * ImageReader object for SVG document image type.
- */
- public class SVGReader extends AbstractImageReader {
-
- public boolean verifySignature(BufferedInputStream fis) throws IOException {
- this.imageStream = fis;
- return loadImage();
- }
-
- public String getMimeType() {
- return "image/svg-xml";
- }
-
- /**
- * This means the external svg document will be loaded twice.
- * Possibly need a slightly different design for the image stuff.
- */
- protected boolean loadImage()
- {
- // parse document and get the size attributes of the svg element
- try {
- // should check the stream contains text data
- SVGDriver driver = new SVGDriver();
- driver.addElementMapping("org.apache.fop.svg.SVGElementMapping");
- driver.addPropertyList("org.apache.fop.svg.SVGPropertyListMapping");
- XMLReader parser = SVGImage.createParser();
- driver.buildSVGTree(parser, new InputSource(this.imageStream));
- SVGDocument doc = driver.getSVGDocument();
- SVGSVGElement svg = doc.getRootElement();
- this.width = (int)svg.getWidth().getBaseVal().getValue() * 1000;
- this.height = (int)svg.getHeight().getBaseVal().getValue() * 1000;
- return true;
- } catch (Exception e) {
- //MessageHandler.errorln("ERROR LOADING EXTERNAL SVG: " + e.getMessage());
- // assuming any exception means this document is not svg
- // or could not be loaded for some reason
- return false;
- }
- }
-
- }
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