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.pivot.editors;
017
018 import griffon.core.editors.AbstractPropertyEditor;
019 import griffon.core.formatters.Formatter;
020 import griffon.core.formatters.ParseException;
021 import griffon.metadata.PropertyEditorFor;
022 import griffon.pivot.formatters.ColorFormatter;
023
024 import java.awt.Color;
025 import java.util.ArrayList;
026 import java.util.List;
027 import java.util.Map;
028
029 import static griffon.util.GriffonNameUtils.isBlank;
030
031 /**
032 * @author Andres Almiray
033 * @since 2.0.0
034 */
035 @PropertyEditorFor(Color.class)
036 public class ColorPropertyEditor extends AbstractPropertyEditor {
037 public static String format(Color color) {
038 return ColorFormatter.LONG.format(color);
039 }
040
041 @Override
042 public String getAsText() {
043 if (null == getValue()) return null;
044 return isBlank(getFormat()) ? format((Color) getValueInternal()) : getFormattedValue();
045 }
046
047 protected void setValueInternal(Object value) {
048 if (null == value) {
049 super.setValueInternal(null);
050 } else if (value instanceof CharSequence) {
051 handleAsString(String.valueOf(value).trim());
052 } else if (value instanceof List) {
053 handleAsList((List) value);
054 } else if (value instanceof Map) {
055 handleAsMap((Map) value);
056 } else if (value instanceof Number) {
057 handleAsNumber((Number) value);
058 } else if (value instanceof Color) {
059 super.setValueInternal(value);
060 } else {
061 throw illegalValue(value, Color.class);
062 }
063 }
064
065 @Override
066 protected Formatter<Color> resolveFormatter() {
067 return !isBlank(getFormat()) ? ColorFormatter.getInstance(getFormat()) : null;
068 }
069
070 private void handleAsString(String str) {
071 if (isBlank(str)) {
072 super.setValueInternal(null);
073 return;
074 }
075
076 try {
077 super.setValueInternal(ColorFormatter.parseColor(str));
078 } catch (ParseException e) {
079 throw illegalValue(str, Color.class, e);
080 }
081 }
082
083 private void handleAsList(List<?> list) {
084 if (list.isEmpty()) {
085 super.setValueInternal(null);
086 return;
087 }
088
089 List<Object> values = new ArrayList<>();
090 values.addAll(list);
091 switch (list.size()) {
092 case 3:
093 values.add(255);
094 break;
095 case 4:
096 // ok
097 break;
098 default:
099 throw illegalValue(list, Color.class);
100 }
101 for (int i = 0, valuesSize = values.size(); i < valuesSize; i++) {
102 Object val = values.get(i);
103 if (val instanceof Number) {
104 values.set(i, parse((Number) val));
105 } else if (val instanceof CharSequence) {
106 values.set(i, parse(String.valueOf(val)));
107 } else {
108 throw illegalValue(list, Color.class);
109 }
110 }
111 super.setValueInternal(
112 new Color(
113 (Integer) values.get(0),
114 (Integer) values.get(1),
115 (Integer) values.get(2),
116 (Integer) values.get(3)
117 )
118 );
119 }
120
121 private void handleAsMap(Map<?, ?> map) {
122 if (map.isEmpty()) {
123 super.setValueInternal(null);
124 return;
125 }
126
127 int r = getMapValue(map, "red", 0);
128 int g = getMapValue(map, "green", 0);
129 int b = getMapValue(map, "blue", 0);
130 int a = getMapValue(map, "alpha", 255);
131 super.setValueInternal(new Color(r, g, b, a));
132 }
133
134 private int parse(String val) {
135 try {
136 return Integer.parseInt(String.valueOf(val).trim(), 16) & 0xFF;
137 } catch (NumberFormatException e) {
138 throw illegalValue(val, Color.class, e);
139 }
140 }
141
142 private int parse(Number val) {
143 return val.intValue() & 0xFF;
144 }
145
146 private int getMapValue(Map<?, ?> map, String key, int defaultValue) {
147 Object val = map.get(key);
148 if (null == val) val = map.get(String.valueOf(key.charAt(0)));
149 if (null == val) {
150 return defaultValue;
151 } else if (val instanceof CharSequence) {
152 return parse(String.valueOf(val));
153 } else if (val instanceof Number) {
154 return parse((Number) val);
155 }
156 throw illegalValue(map, Color.class);
157 }
158
159 private void handleAsNumber(Number value) {
160 int c = parse(value);
161 super.setValueInternal(new Color(c, c, c, 255));
162 }
163 }
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