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.pivot.editors;
019
020 import griffon.core.editors.AbstractPropertyEditor;
021 import griffon.core.formatters.Formatter;
022 import griffon.core.formatters.ParseException;
023 import griffon.metadata.PropertyEditorFor;
024 import griffon.pivot.formatters.ColorFormatter;
025
026 import java.awt.Color;
027 import java.util.ArrayList;
028 import java.util.List;
029 import java.util.Map;
030
031 import static griffon.util.GriffonNameUtils.isBlank;
032 import static griffon.util.GriffonNameUtils.isNotBlank;
033
034 /**
035 * @author Andres Almiray
036 * @since 2.0.0
037 */
038 @PropertyEditorFor(Color.class)
039 public class ColorPropertyEditor extends AbstractPropertyEditor {
040 public static String format(Color color) {
041 return ColorFormatter.LONG.format(color);
042 }
043
044 @Override
045 public String getAsText() {
046 if (null == getValue()) { return null; }
047 return isBlank(getFormat()) ? format((Color) getValueInternal()) : getFormattedValue();
048 }
049
050 @Override
051 protected void setValueInternal(Object value) {
052 if (null == value) {
053 super.setValueInternal(null);
054 } else if (value instanceof CharSequence) {
055 handleAsString(String.valueOf(value).trim());
056 } else if (value instanceof List) {
057 handleAsList((List) value);
058 } else if (value instanceof Map) {
059 handleAsMap((Map) value);
060 } else if (value instanceof Number) {
061 handleAsNumber((Number) value);
062 } else if (value instanceof Color) {
063 super.setValueInternal(value);
064 } else {
065 throw illegalValue(value, Color.class);
066 }
067 }
068
069 @Override
070 protected Formatter<Color> resolveFormatter() {
071 return isNotBlank(getFormat()) ? ColorFormatter.getInstance(getFormat()) : null;
072 }
073
074 protected void handleAsString(String str) {
075 if (isBlank(str)) {
076 super.setValueInternal(null);
077 return;
078 }
079
080 try {
081 super.setValueInternal(ColorFormatter.parseColor(str));
082 } catch (ParseException e) {
083 throw illegalValue(str, Color.class, e);
084 }
085 }
086
087 protected void handleAsList(List<?> list) {
088 if (list.isEmpty()) {
089 super.setValueInternal(null);
090 return;
091 }
092
093 List<Object> values = new ArrayList<>();
094 values.addAll(list);
095 switch (list.size()) {
096 case 3:
097 values.add(255);
098 break;
099 case 4:
100 // ok
101 break;
102 default:
103 throw illegalValue(list, Color.class);
104 }
105 for (int i = 0, valuesSize = values.size(); i < valuesSize; i++) {
106 Object val = values.get(i);
107 if (val instanceof Number) {
108 values.set(i, parse((Number) val));
109 } else if (val instanceof CharSequence) {
110 values.set(i, parse(String.valueOf(val)));
111 } else {
112 throw illegalValue(list, Color.class);
113 }
114 }
115 super.setValueInternal(
116 new Color(
117 (Integer) values.get(0),
118 (Integer) values.get(1),
119 (Integer) values.get(2),
120 (Integer) values.get(3)
121 )
122 );
123 }
124
125 protected void handleAsMap(Map<?, ?> map) {
126 if (map.isEmpty()) {
127 super.setValueInternal(null);
128 return;
129 }
130
131 int r = getMapValue(map, "red", 0);
132 int g = getMapValue(map, "green", 0);
133 int b = getMapValue(map, "blue", 0);
134 int a = getMapValue(map, "alpha", 255);
135 super.setValueInternal(new Color(r, g, b, a));
136 }
137
138 protected int parse(String val) {
139 try {
140 return Integer.parseInt(String.valueOf(val).trim(), 16) & 0xFF;
141 } catch (NumberFormatException e) {
142 throw illegalValue(val, Color.class, e);
143 }
144 }
145
146 protected int parse(Number val) {
147 return val.intValue() & 0xFF;
148 }
149
150 protected int getMapValue(Map<?, ?> map, String key, int defaultValue) {
151 Object val = map.get(key);
152 if (null == val) { val = map.get(String.valueOf(key.charAt(0))); }
153 if (null == val) {
154 return defaultValue;
155 } else if (val instanceof CharSequence) {
156 return parse(String.valueOf(val));
157 } else if (val instanceof Number) {
158 return parse((Number) val);
159 }
160 throw illegalValue(map, Color.class);
161 }
162
163 protected void handleAsNumber(Number value) {
164 int c = parse(value);
165 super.setValueInternal(new Color(c, c, c, 255));
166 }
167 }
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