001 /*
002 * Copyright 2008-2015 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016 package griffon.swing.editors;
017
018 import griffon.core.editors.AbstractPropertyEditor;
019 import griffon.metadata.PropertyEditorFor;
020
021 import java.awt.geom.Rectangle2D;
022 import java.util.List;
023 import java.util.Map;
024
025 import static griffon.util.GriffonNameUtils.isBlank;
026
027 /**
028 * @author Andres Almiray
029 * @since 2.0.0
030 */
031 @PropertyEditorFor(Rectangle2D.class)
032 public class Rectangle2DPropertyEditor extends AbstractPropertyEditor {
033 public String getAsText() {
034 if (null == getValue()) return null;
035 Rectangle2D r = (Rectangle2D) getValue();
036 return r.getX() + ", " + r.getY() + ", " + r.getWidth() + ", " + r.getHeight();
037 }
038
039 protected void setValueInternal(Object value) {
040 if (null == value) {
041 super.setValueInternal(null);
042 } else if (value instanceof CharSequence) {
043 handleAsString(String.valueOf(value));
044 } else if (value instanceof List) {
045 handleAsList((List) value);
046 } else if (value instanceof Map) {
047 handleAsMap((Map) value);
048 } else if (value instanceof Rectangle2D) {
049 super.setValueInternal(value);
050 } else {
051 throw illegalValue(value, Rectangle2D.class);
052 }
053 }
054
055 private void handleAsString(String str) {
056 if (isBlank(str)) {
057 super.setValueInternal(null);
058 return;
059 }
060
061 String[] parts = str.split(",");
062 switch (parts.length) {
063 case 4:
064 double x = parseValue(parts[0]);
065 double y = parseValue(parts[1]);
066 double w = parseValue(parts[2]);
067 double h = parseValue(parts[3]);
068 super.setValueInternal(new Rectangle2D.Double(x, y, w, h));
069 break;
070 default:
071 throw illegalValue(str, Rectangle2D.class);
072 }
073 }
074
075 private void handleAsList(List<?> list) {
076 if(list.isEmpty()) {
077 super.setValueInternal(null);
078 return;
079 }
080
081 switch (list.size()) {
082 case 4:
083 double x = parseValue(list.get(0));
084 double y = parseValue(list.get(1));
085 double w = parseValue(list.get(2));
086 double h = parseValue(list.get(3));
087 super.setValueInternal(new Rectangle2D.Double(x, y, w, h));
088 break;
089 default:
090 throw illegalValue(list, Rectangle2D.class);
091 }
092 }
093
094 private void handleAsMap(Map<?, ?> map) {
095 if(map.isEmpty()) {
096 super.setValueInternal(null);
097 return;
098 }
099
100 double x = getMapValue(map, "x", 0);
101 double y = getMapValue(map, "y", 0);
102 double w = getMapValue(map, "width", 0);
103 double h = getMapValue(map, "height", 0);
104 super.setValueInternal(new Rectangle2D.Double(x, y, w, h));
105 }
106
107 private double parseValue(Object value) {
108 if (value instanceof CharSequence) {
109 return parse(String.valueOf(value));
110 } else if (value instanceof Number) {
111 return parse((Number) value);
112 }
113 throw illegalValue(value, Rectangle2D.class);
114 }
115
116 private double parse(String val) {
117 try {
118 return Double.parseDouble(val.trim());
119 } catch (NumberFormatException e) {
120 throw illegalValue(val, Rectangle2D.class, e);
121 }
122 }
123
124 private double parse(Number val) {
125 return val.doubleValue();
126 }
127
128 private double getMapValue(Map<?, ?> map, String key, double defaultValue) {
129 Object val = map.get(key);
130 if (null == val) val = map.get(String.valueOf(key.charAt(0)));
131 if (null == val) {
132 return defaultValue;
133 } else if (val instanceof CharSequence) {
134 return parse(String.valueOf(val));
135 } else if (val instanceof Number) {
136 return parse((Number) val);
137 }
138 throw illegalValue(map, Rectangle2D.class);
139 }
140 }
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