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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.fo.extensions.svg;
import java.util.HashMap;
import javax.xml.parsers.SAXParserFactory;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.ElementMapping;
import org.apache.batik.util.XMLResourceDescriptor;
import org.apache.batik.dom.svg.SVGDOMImplementation;
/**
* Setup the SVG element mapping.
* This adds the svg element mappings used to create the objects
* that create the SVG Document.
*/
public class SVGElementMapping extends ElementMapping {
public static String URI = SVGDOMImplementation.SVG_NAMESPACE_URI;
private boolean batik = true;
public SVGElementMapping() {
namespaceURI = URI;
}
/**
* Returns the fully qualified classname of an XML parser for
* Batik classes that apparently need it (error messages, perhaps)
* @return an XML parser classname
*/
private final String getAParserClassName() {
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
return factory.newSAXParser().getXMLReader().getClass().getName();
} catch (Exception e) {
return null;
}
}
protected void initialize() {
if (foObjs == null && batik == true) {
// this sets the parser that will be used
// by default (SVGBrokenLinkProvider)
// normally the user agent value is used
try {
XMLResourceDescriptor.setXMLParserClassName(
getAParserClassName());
foObjs = new HashMap();
foObjs.put("svg", new SE());
foObjs.put(DEFAULT, new SVGMaker());
} catch (Throwable t) {
// if the classes are not available
// the DISPLAY is not checked
batik = false;
}
}
}
static class SVGMaker extends ElementMapping.Maker {
public FONode make(FONode parent) {
return new SVGObj(parent);
}
}
static class SE extends ElementMapping.Maker {
public FONode make(FONode parent) {
return new SVGElement(parent);
}
}
}
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