001 /*
002 * Copyright 2008-2017 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.Point;
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 * @author Alexander Klein
030 * @since 2.0.0
031 */
032 @PropertyEditorFor(Point.class)
033 public class PointPropertyEditor extends AbstractPropertyEditor {
034 @Override
035 public String getAsText() {
036 if (null == getValue()) return null;
037 Point p = (Point) getValue();
038 return p.getX() + ", " + p.getY();
039 }
040
041 @Override
042 protected void setValueInternal(Object value) {
043 if (null == value) {
044 super.setValueInternal(null);
045 } else if (value instanceof CharSequence) {
046 handleAsString(String.valueOf(value));
047 } else if (value instanceof List) {
048 handleAsList((List) value);
049 } else if (value instanceof Map) {
050 handleAsMap((Map) value);
051 } else if (value instanceof Number) {
052 handleAsNumber((Number) value);
053 } else if (value instanceof Point) {
054 super.setValueInternal(value);
055 } else {
056 throw illegalValue(value, Point.class);
057 }
058 }
059
060 protected void handleAsString(String str) {
061 if (isBlank(str)) {
062 super.setValueInternal(null);
063 return;
064 }
065
066 String[] parts = str.split(",");
067 switch (parts.length) {
068 case 1:
069 int s = parseValue(parts[0]);
070 super.setValueInternal(new Point(s, s));
071 break;
072 case 2:
073 int x = parseValue(parts[0]);
074 int y = parseValue(parts[1]);
075 super.setValueInternal(new Point(x, y));
076 break;
077 default:
078 throw illegalValue(str, Point.class);
079 }
080 }
081
082 protected void handleAsList(List<?> list) {
083 if(list.isEmpty()) {
084 super.setValueInternal(null);
085 return;
086 }
087
088 switch (list.size()) {
089 case 1:
090 int s = parseValue(list.get(0));
091 super.setValueInternal(new Point(s, s));
092 break;
093 case 2:
094 int x = parseValue(list.get(0));
095 int y = parseValue(list.get(1));
096 super.setValueInternal(new Point(x, y));
097 break;
098 default:
099 throw illegalValue(list, Point.class);
100 }
101 }
102
103 protected void handleAsMap(Map<?, ?> map) {
104 if(map.isEmpty()) {
105 super.setValueInternal(null);
106 return;
107 }
108
109 int x = getMapValue(map, "x", 0);
110 int y = getMapValue(map, "y", 0);
111 super.setValueInternal(new Point(x, y));
112 }
113
114 protected int parseValue(Object value) {
115 if (value instanceof CharSequence) {
116 return parse(String.valueOf(value));
117 } else if (value instanceof Number) {
118 return parse((Number) value);
119 }
120 throw illegalValue(value, Point.class);
121 }
122
123 protected int parse(String val) {
124 try {
125 return Integer.parseInt(val.trim());
126 } catch (NumberFormatException e) {
127 throw illegalValue(val, Point.class, e);
128 }
129 }
130
131 protected int parse(Number val) {
132 return val.intValue();
133 }
134
135 protected int getMapValue(Map<?, ?> map, String key, int defaultValue) {
136 Object val = map.get(key);
137 if (null == val) {
138 return defaultValue;
139 } else if (val instanceof CharSequence) {
140 return parse(String.valueOf(val));
141 } else if (val instanceof Number) {
142 return parse((Number) val);
143 }
144 throw illegalValue(map, Point.class);
145 }
146
147 protected void handleAsNumber(Number value) {
148 int s = parse(value);
149 super.setValueInternal(new Point(s, s));
150 }
151 }
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