/* ========================================================================
* JCommon : a free general purpose class library for the Java(tm) platform
* ========================================================================
*
* (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jcommon/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* --------------------------
* RenderingHintsHandler.java
* --------------------------
* (C)opyright 2003-2005, by Thomas Morgner and Contributors.
*
* Original Author: Thomas Morgner;
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* $Id: RenderingHintsWriteHandler.java,v 1.5 2005/10/18 13:35:21 mungady Exp $
*
* Changes
* -------------------------
* 22.11.2003 : Initial version
*
*/
package org.jfree.xml.writer.coretypes;
import java.awt.RenderingHints;
import java.io.IOException;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.Iterator;
import org.jfree.util.Log;
import org.jfree.xml.writer.AbstractXmlWriteHandler;
import org.jfree.xml.writer.AttributeList;
import org.jfree.xml.writer.XMLWriter;
import org.jfree.xml.writer.XMLWriterException;
import org.jfree.xml.writer.XMLWriterSupport;
/**
* A handler for writing a {@link RenderingHints} object.
*/
public class RenderingHintsWriteHandler extends AbstractXmlWriteHandler {
/**
* Default constructor.
*/
public RenderingHintsWriteHandler() {
super();
}
/**
* Performs the writing of a single object.
*
* @param tagName the tag name.
* @param object the object.
* @param writer the writer.
* @param mPlexAttribute ??.
* @param mPlexValue ??.
*
* @throws IOException if there is an I/O error.
* @throws XMLWriterException if there is a writer problem.
*/
public void write(final String tagName, final Object object, final XMLWriter writer,
final String mPlexAttribute, final String mPlexValue)
throws IOException, XMLWriterException {
writer.writeTag(tagName, mPlexAttribute, mPlexValue, XMLWriterSupport.OPEN);
writer.allowLineBreak();
final RenderingHints hints = (RenderingHints) object;
final Iterator it = hints.keySet().iterator();
while (it.hasNext()) {
final RenderingHints.Key key = (RenderingHints.Key) it.next();
final String keyname = hintFieldToString(key);
final String value = hintFieldToString(hints.get(key));
final AttributeList attribs = new AttributeList();
attribs.setAttribute("key", keyname);
attribs.setAttribute("value", value);
writer.writeTag("entry", attribs, XMLWriterSupport.CLOSE);
writer.allowLineBreak();
}
writer.writeCloseTag(tagName);
writer.allowLineBreak();
}
private String hintFieldToString(final Object o) {
final Field[] fields = RenderingHints.class.getFields();
for (int i = 0; i < fields.length; i++) {
final Field f = fields[i];
if (Modifier.isFinal(f.getModifiers())
&& Modifier.isPublic(f.getModifiers())
&& Modifier.isStatic(f.getModifiers())) {
try {
final Object value = f.get(null);
if (o.equals(value)) {
return f.getName();
}
}
catch (Exception e) {
Log.info ("Unable to write RenderingHint", e);
}
}
}
throw new IllegalArgumentException("Invalid value given");
}
}