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.Font;
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 */
030 @PropertyEditorFor(Font.class)
031 public class FontPropertyEditor extends AbstractPropertyEditor {
032 public String getAsText() {
033 if (null == getValue()) return null;
034 Font font = (Font) getValue();
035 return font.getFamily() + "-" + formatStyle(font) + "-" + font.getSize();
036 }
037
038 private String formatStyle(Font font) {
039 if (font.isBold() && font.isItalic()) {
040 return "BOLDITALIC";
041 } else if (font.isBold()) {
042 return "BOLD";
043 } else if (font.isItalic()) {
044 return "ITALIC";
045 }
046 return "PLAIN";
047 }
048
049 protected void setValueInternal(Object value) {
050 if (null == value) {
051 super.setValueInternal(null);
052 } else if (value instanceof CharSequence) {
053 handleAsString(String.valueOf(value));
054 } else if (value instanceof List) {
055 handleAsList((List) value);
056 } else if (value instanceof Map) {
057 handleAsMap((Map) value);
058 } else if (value instanceof Font) {
059 super.setValueInternal(value);
060 } else {
061 throw illegalValue(value, Font.class);
062 }
063 }
064
065 private void handleAsString(String str) {
066 if (isBlank(str)) {
067 super.setValueInternal(null);
068 return;
069 }
070 String[] parts = str.split("-");
071 if (parts.length != 3) {
072 throw illegalValue(str, Font.class);
073 }
074
075 String family = parts[0];
076 int style = resolveStyle(str, parts[1]);
077 int size = parseSize(str, parts[2]);
078
079 super.setValueInternal(new Font(family, style, size));
080 }
081
082 private void handleAsList(List<?> list) {
083 if(list.isEmpty()) {
084 super.setValueInternal(null);
085 return;
086 }
087
088 if (list.size() != 3) {
089 throw illegalValue(list, Font.class);
090 }
091
092 String family = String.valueOf(list.get(0));
093 int style = resolveStyle(list, String.valueOf(list.get(1)));
094 int size = parseSize(list, String.valueOf(list.get(2)));
095
096 super.setValueInternal(new Font(family, style, size));
097 }
098
099 private void handleAsMap(Map<?, ?> map) {
100 if(map.isEmpty()) {
101 super.setValueInternal(null);
102 return;
103 }
104
105 String family = getMapValue(map, "family", "");
106 String style = getMapValue(map, "style", "");
107 String size = getMapValue(map, "size", "");
108 super.setValueInternal(new Font(family, resolveStyle(map, style), parseSize(map, size)));
109 }
110
111 private String getMapValue(Map<?, ?> map, String key, String defaultValue) {
112 Object val = map.get(key);
113 if (null == val) val = map.get(String.valueOf(key.charAt(0)));
114 if (null == val) {
115 return defaultValue;
116 } else if (val instanceof CharSequence) {
117 return String.valueOf(val).trim();
118 }
119 throw illegalValue(map, Font.class);
120 }
121
122 private int parseSize(Object source, String str) {
123 int size;
124 try {
125 size = Integer.parseInt(str);
126 } catch (NumberFormatException nfe) {
127 throw illegalValue(source, Font.class);
128 }
129 return size;
130 }
131
132 private int resolveStyle(Object source, String str) {
133 if ("PLAIN".equals(str.toUpperCase())) {
134 return Font.PLAIN;
135 } else if ("BOLD".equals(str.toUpperCase())) {
136 return Font.BOLD;
137 } else if ("ITALIC".equals(str.toUpperCase())) {
138 return Font.ITALIC;
139 } else if ("BOLDITALIC".equals(str.toUpperCase())) {
140 return Font.BOLD | Font.ITALIC;
141 }
142 throw illegalValue(source, Font.class);
143 }
144 }
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