insetsreadhandler.java

这是一个segy数据显示程序

/* ========================================================================
 * JCommon : a free general purpose class library for the Java(tm) platform
 * ========================================================================
 *
 * (C) Copyright 2000-2004, 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., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 * 
 * ----------------------
 * InsetsReadHandler.java
 * ----------------------
 * (C)opyright 2003, 2004, by Thomas Morgner and Contributors.
 *
 * Original Author:  Thomas Morgner;
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *
 * $Id: InsetsReadHandler.java,v 1.5 2004/04/26 19:15:50 taqua Exp $
 *
 * Changes 
 * -------
 * 03-Dec-2003 : Initial version
 * 11-Feb-2004 : Added missing Javadocs (DG);
 * 
 */

package org.jfree.xml.parser.coretypes;

import java.awt.Insets;

import org.jfree.xml.parser.AbstractXmlReadHandler;
import org.jfree.xml.parser.XmlReaderException;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

/**
 * A reader that can parse the XML element for an {@link Insets} object.
 */
public class InsetsReadHandler extends AbstractXmlReadHandler {

    /** The insets under construction. */
    private Insets insets;

    /**
     * Creates a new read handler.
     */
    public InsetsReadHandler() {
        super();
    }

    /**
     * Begins parsing.
     * 
     * @param attrs  the attributes.
     * 
     * @throws SAXException if there is a parsing problem.
     */
    protected void startParsing(final Attributes attrs) throws SAXException {

        final String top = attrs.getValue("top");
        final String left = attrs.getValue("left");
        final String bottom = attrs.getValue("bottom");
        final String right = attrs.getValue("right");

        this.insets = new Insets(
            Integer.parseInt(top), Integer.parseInt(left),
            Integer.parseInt(bottom), Integer.parseInt(right)
        );
        
    }

    /**
     * Returns the object for this element.
     *
     * @return the object.
     *
     * @throws XmlReaderException never.
     */
    public Object getObject() throws XmlReaderException {
        return this.insets;
    }
}