/* ========================================================================
* 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.]
*
* ---------------------------------
* Dimension2DObjectDescription.java
* ---------------------------------
* (C)opyright 2003, by Thomas Morgner and Contributors.
*
* Original Author: Thomas Morgner;
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* $Id: Dimension2DObjectDescription.java,v 1.1 2004/07/15 14:58:42 mungady Exp $
*
* Changes
* -------
* 13-Jan-2004 : Initial version
*
*/
package org.jfree.xml.factory.objects;
import java.awt.geom.Dimension2D;
import org.jfree.ui.FloatDimension;
/**
* An object-description for a <code>Dimension2D</code> object.
*
* @author Thomas Morgner
*/
public class Dimension2DObjectDescription extends AbstractObjectDescription {
/**
* Creates a new object description.
*/
public Dimension2DObjectDescription() {
super(Dimension2D.class);
setParameterDefinition("width", Float.class);
setParameterDefinition("height", Float.class);
}
/**
* Creates an object based on the description.
*
* @return The object.
*/
public Object createObject() {
final Dimension2D dim = new FloatDimension();
final float width = getFloatParameter("width");
final float height = getFloatParameter("height");
dim.setSize(width, height);
return dim;
}
/**
* Returns a parameter value as a float.
*
* @param param the parameter name.
*
* @return The float value.
*/
private float getFloatParameter(final String param) {
final Float p = (Float) getParameter(param);
if (p == null) {
return 0;
}
return p.floatValue();
}
/**
* Sets the parameters of this description object to match the supplied object.
*
* @param o the object (should be an instance of <code>Dimension2D</code>).
*
* @throws ObjectFactoryException if the object is not an instance of <code>Point2D</code>.
*/
public void setParameterFromObject(final Object o) throws ObjectFactoryException {
if (!(o instanceof Dimension2D)) {
throw new ObjectFactoryException("The given object is no java.awt.geom.Dimension2D.");
}
final Dimension2D dim = (Dimension2D) o;
final float width = (float) dim.getWidth();
final float height = (float) dim.getHeight();
setParameter("width", new Float(width));
setParameter("height", new Float(height));
}
}