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/*
* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.fo;
// FOP
import org.apache.fop.fo.*;
import org.apache.fop.layout.Area;
import org.apache.fop.layout.FontState;
import org.apache.fop.apps.FOPException;
import org.apache.fop.layout.LinkSet;
import org.apache.fop.datatypes.IDReferences;
import org.w3c.dom.*;
import org.xml.sax.Attributes;
import javax.xml.parsers.DocumentBuilderFactory;
import java.util.*;
/**
* Since SVG objects are not layed out then this class checks
* that this element is not being layed out inside some incorrect
* element.
*/
public abstract class XMLObj extends FObj {
protected String tagName = "";
protected Element element;
protected Document doc;
/**
*
* @param parent the parent formatting object
* @param propertyList the explicit properties of this object
*/
public XMLObj(FObj parent, PropertyList propertyList, String tag) {
super(parent, propertyList);
tagName = tag;
}
public abstract String getNameSpace();
protected static Hashtable ns = new Hashtable();
public void addGraphic(Document doc, Element parent) {
this.doc = doc;
element = doc.createElementNS(getNameSpace(), tagName);
if(this.properties instanceof DirectPropertyListBuilder.AttrPropertyList) {
Attributes attr = ((DirectPropertyListBuilder.AttrPropertyList)this.properties).getAttributes();
for (int count = 0; count < attr.getLength(); count++) {
String rf = attr.getValue(count);
String qname = attr.getQName(count);
if (qname.indexOf(":") == -1) {
element.setAttribute(qname, rf);
} else {
String pref =
qname.substring(0, qname.indexOf(":"));
if (pref.equals("xmlns")) {
ns.put(qname.substring(qname.indexOf(":")
+ 1), rf);
}
ns.put("xlink", "http://www.w3.org/1999/xlink");
element.setAttributeNS((String)ns.get(pref),
qname, rf);
}
}
} else {
}
parent.appendChild(element);
}
public void buildTopLevel(Document doc, Element svgRoot) {
// build up the info for the top level element
if(this.properties instanceof DirectPropertyListBuilder.AttrPropertyList) {
Attributes attr = ((DirectPropertyListBuilder.AttrPropertyList)this.properties).getAttributes();
for (int count = 0; count < attr.getLength(); count++) {
String rf = attr.getValue(count);
String qname = attr.getQName(count);
if (qname.indexOf(":") == -1) {
element.setAttribute(qname, rf);
} else {
String pref =
qname.substring(0, qname.indexOf(":"));
if (pref.equals("xmlns")) {
ns.put(qname.substring(qname.indexOf(":")
+ 1), rf);
}
ns.put("xlink", "http://www.w3.org/1999/xlink");
element.setAttributeNS((String)ns.get(pref),
qname, rf);
}
}
} else {
}
}
public Document createBasicDocument() {
doc = null;
element = null;
try {
DocumentBuilderFactory fact = DocumentBuilderFactory.newInstance();
fact.setNamespaceAware(true);
doc = fact.newDocumentBuilder().newDocument();
Element el = doc.createElement(tagName);
doc.appendChild(el);
element = doc.getDocumentElement();
buildTopLevel(doc, element);
} catch (Exception e) {
e.printStackTrace();
}
return doc;
}
protected void addChild(FONode child) {
if (child instanceof XMLObj) {
((XMLObj)child).addGraphic(doc, element);
}
}
protected void addCharacters(char data[], int start, int length) {
String str = new String(data, start, length - start);
org.w3c.dom.Text text = doc.createTextNode(str);
element.appendChild(text);
}
/**
* layout this formatting object.
*
* @param area the area to layout the object into
* @return the status of the layout
*/
public Status layout(Area area) throws FOPException {
/* generate a warning */
log.error("" + this.name + " outside foreign xml");
/* return status */
return new Status(Status.OK);
}
public void removeID(IDReferences idReferences) {}
/**
* These method overrides prevent problems with the different types.
*/
public void setIsInTableCell() {}
public void forceStartOffset(int offset) {}
public void forceWidth(int width) {}
public void resetMarker() {}
public void setLinkSet(LinkSet linkSet) {}
public Vector getMarkerSnapshot(Vector snapshot) {
return snapshot;
}
public void rollback(Vector snapshot) {}
protected void setWritingMode() {}
}
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