001 /*
002 * SPDX-License-Identifier: Apache-2.0
003 *
004 * Copyright 2008-2017 the original author or authors.
005 *
006 * Licensed under the Apache License, Version 2.0 (the "License");
007 * you may not use this file except in compliance with the License.
008 * You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018 package griffon.swing.editors;
019
020 import griffon.core.editors.AbstractPropertyEditor;
021 import griffon.metadata.PropertyEditorFor;
022
023 import java.awt.Point;
024 import java.util.List;
025 import java.util.Map;
026
027 import static griffon.util.GriffonNameUtils.isBlank;
028
029 /**
030 * @author Andres Almiray
031 * @author Alexander Klein
032 * @since 2.0.0
033 */
034 @PropertyEditorFor(Point.class)
035 public class PointPropertyEditor extends AbstractPropertyEditor {
036 @Override
037 public String getAsText() {
038 if (null == getValue()) return null;
039 Point p = (Point) getValue();
040 return p.getX() + ", " + p.getY();
041 }
042
043 @Override
044 protected void setValueInternal(Object value) {
045 if (null == value) {
046 super.setValueInternal(null);
047 } else if (value instanceof CharSequence) {
048 handleAsString(String.valueOf(value));
049 } else if (value instanceof List) {
050 handleAsList((List) value);
051 } else if (value instanceof Map) {
052 handleAsMap((Map) value);
053 } else if (value instanceof Number) {
054 handleAsNumber((Number) value);
055 } else if (value instanceof Point) {
056 super.setValueInternal(value);
057 } else {
058 throw illegalValue(value, Point.class);
059 }
060 }
061
062 protected void handleAsString(String str) {
063 if (isBlank(str)) {
064 super.setValueInternal(null);
065 return;
066 }
067
068 String[] parts = str.split(",");
069 switch (parts.length) {
070 case 1:
071 int s = parseValue(parts[0]);
072 super.setValueInternal(new Point(s, s));
073 break;
074 case 2:
075 int x = parseValue(parts[0]);
076 int y = parseValue(parts[1]);
077 super.setValueInternal(new Point(x, y));
078 break;
079 default:
080 throw illegalValue(str, Point.class);
081 }
082 }
083
084 protected void handleAsList(List<?> list) {
085 if(list.isEmpty()) {
086 super.setValueInternal(null);
087 return;
088 }
089
090 switch (list.size()) {
091 case 1:
092 int s = parseValue(list.get(0));
093 super.setValueInternal(new Point(s, s));
094 break;
095 case 2:
096 int x = parseValue(list.get(0));
097 int y = parseValue(list.get(1));
098 super.setValueInternal(new Point(x, y));
099 break;
100 default:
101 throw illegalValue(list, Point.class);
102 }
103 }
104
105 protected void handleAsMap(Map<?, ?> map) {
106 if(map.isEmpty()) {
107 super.setValueInternal(null);
108 return;
109 }
110
111 int x = getMapValue(map, "x", 0);
112 int y = getMapValue(map, "y", 0);
113 super.setValueInternal(new Point(x, y));
114 }
115
116 protected int parseValue(Object value) {
117 if (value instanceof CharSequence) {
118 return parse(String.valueOf(value));
119 } else if (value instanceof Number) {
120 return parse((Number) value);
121 }
122 throw illegalValue(value, Point.class);
123 }
124
125 protected int parse(String val) {
126 try {
127 return Integer.parseInt(val.trim());
128 } catch (NumberFormatException e) {
129 throw illegalValue(val, Point.class, e);
130 }
131 }
132
133 protected int parse(Number val) {
134 return val.intValue();
135 }
136
137 protected int getMapValue(Map<?, ?> map, String key, int defaultValue) {
138 Object val = map.get(key);
139 if (null == val) {
140 return defaultValue;
141 } else if (val instanceof CharSequence) {
142 return parse(String.valueOf(val));
143 } else if (val instanceof Number) {
144 return parse((Number) val);
145 }
146 throw illegalValue(map, Point.class);
147 }
148
149 protected void handleAsNumber(Number value) {
150 int s = parse(value);
151 super.setValueInternal(new Point(s, s));
152 }
153 }
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