001 /* ======================================================
002 * Orson : a free chart beans library based on JFreeChart
003 * ======================================================
004 *
005 * (C) Copyright 2007, by Object Refinery Limited.
006 *
007 * Project Info: not-yet-released
008 *
009 * This library is free software; you can redistribute it and/or modify it
010 * under the terms of the GNU Lesser General Public License as published by
011 * the Free Software Foundation; either version 2.1 of the License, or
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
022 * USA.
023 *
024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025 * in the United States and other countries.]
026 */
027
028 package org.jfree.beans.editors;
029
030 import java.beans.PropertyEditorSupport;
031
032 import org.jfree.util.Rotation;
033
034 /**
035 * A JavaBeans property editor for the {@link Rotation} class.
036 */
037 public class RotationEditor extends PropertyEditorSupport {
038
039 /**
040 * Returns a string representing the current value. This will be one of
041 * <code>Rotation.CLOCKWISE</code> and <code>Rotation.ANTICLOCKWISE</code>.
042 *
043 * @return A string representing the current value.
044 */
045 public String getAsText() {
046 Rotation r = (Rotation) getValue();
047 if (Rotation.CLOCKWISE.equals(r)) {
048 return "CLOCKWISE";
049 }
050 else if (Rotation.ANTICLOCKWISE.equals(r)) {
051 return "ANTICLOCKWISE";
052 }
053 else throw new RuntimeException("Bad Rotation instance.");
054 }
055
056 /**
057 * Sets the current value by parsing the supplied string.
058 *
059 * @param text the string value.
060 *
061 * @throws IllegalArgumentException if <code>text</code> is not one of
062 * the values listed in {@link #getAsText()}.
063 */
064 public void setAsText(String text) throws IllegalArgumentException {
065 if ("CLOCKWISE".equals(text)) {
066 setValue(Rotation.CLOCKWISE);
067 }
068 else if ("ANTICLOCKWISE".equals(text)) {
069 setValue(Rotation.ANTICLOCKWISE);
070 }
071 else {
072 throw new IllegalArgumentException("Unrecognised 'text' argument.");
073 }
074 }
075
076 /**
077 * Returns the valid string values for this property.
078 *
079 * @return The valid string values for this property.
080 */
081 public String[] getTags() {
082 return new String[] {"CLOCKWISE", "ANTICLOCKWISE"};
083 }
084
085 /**
086 * Returns a string for the property value.
087 *
088 * @return A string for the property value.
089 */
090 public String getJavaInitializationString() {
091 Rotation r = (Rotation) getValue();
092 if (Rotation.CLOCKWISE.equals(r)) {
093 return "org.jfree.util.Rotation.CLOCKWISE";
094 }
095 else if (Rotation.ANTICLOCKWISE.equals(r)) {
096 return "org.jfree.util.Rotation.ANTICLOCKWISE";
097 }
098 return null;
099 }
100
101 }