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1: /* ======================================================================== 2: * JCommon : a free general purpose class library for the Java(tm) platform 3: * ======================================================================== 4: * 5: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jcommon/index.html 8: * 9: * This library is free software; you can redistribute it and/or modify it 10: * under the terms of the GNU Lesser General Public License as published by 11: * the Free Software Foundation; either version 2.1 of the License, or 12: * (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but 15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 17: * License for more details. 18: * 19: * You should have received a copy of the GNU Lesser General Public 20: * License along with this library; if not, write to the Free Software 21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 22: * USA. 23: * 24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 25: * in the United States and other countries.] 26: * 27: * --------------------------------- 28: * Dimension2DObjectDescription.java 29: * --------------------------------- 30: * (C)opyright 2003, by Thomas Morgner and Contributors. 31: * 32: * Original Author: Thomas Morgner; 33: * Contributor(s): David Gilbert (for Object Refinery Limited); 34: * 35: * $Id: Dimension2DObjectDescription.java,v 1.2 2005/10/18 13:31:58 mungady Exp $ 36: * 37: * Changes 38: * ------- 39: * 13-Jan-2004 : Initial version 40: * 41: */ 42: 43: package org.jfree.xml.factory.objects; 44: 45: import java.awt.geom.Dimension2D; 46: 47: import org.jfree.ui.FloatDimension; 48: 49: /** 50: * An object-description for a <code>Dimension2D</code> object. 51: * 52: * @author Thomas Morgner 53: */ 54: public class Dimension2DObjectDescription extends AbstractObjectDescription { 55: 56: /** 57: * Creates a new object description. 58: */ 59: public Dimension2DObjectDescription() { 60: super(Dimension2D.class); 61: setParameterDefinition("width", Float.class); 62: setParameterDefinition("height", Float.class); 63: } 64: 65: /** 66: * Creates an object based on the description. 67: * 68: * @return The object. 69: */ 70: public Object createObject() { 71: final Dimension2D dim = new FloatDimension(); 72: 73: final float width = getFloatParameter("width"); 74: final float height = getFloatParameter("height"); 75: dim.setSize(width, height); 76: return dim; 77: } 78: 79: /** 80: * Returns a parameter value as a float. 81: * 82: * @param param the parameter name. 83: * 84: * @return The float value. 85: */ 86: private float getFloatParameter(final String param) { 87: final Float p = (Float) getParameter(param); 88: if (p == null) { 89: return 0; 90: } 91: return p.floatValue(); 92: } 93: 94: 95: /** 96: * Sets the parameters of this description object to match the supplied object. 97: * 98: * @param o the object (should be an instance of <code>Dimension2D</code>). 99: * 100: * @throws ObjectFactoryException if the object is not an instance of <code>Point2D</code>. 101: */ 102: public void setParameterFromObject(final Object o) throws ObjectFactoryException { 103: if (!(o instanceof Dimension2D)) { 104: throw new ObjectFactoryException("The given object is no java.awt.geom.Dimension2D."); 105: } 106: 107: final Dimension2D dim = (Dimension2D) o; 108: final float width = (float) dim.getWidth(); 109: final float height = (float) dim.getHeight(); 110: 111: setParameter("width", new Float(width)); 112: setParameter("height", new Float(height)); 113: } 114: }