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 javax.imageio.ImageIO;
022 import javax.imageio.stream.ImageInputStream;
023 import java.awt.Image;
024 import java.awt.Toolkit;
025 import java.io.File;
026 import java.io.IOException;
027 import java.io.InputStream;
028 import java.net.MalformedURLException;
029 import java.net.URI;
030 import java.net.URL;
031
032 import static griffon.util.GriffonNameUtils.isBlank;
033
034 /**
035 * @author Andres Almiray
036 * @since 2.0.0
037 */
038 @PropertyEditorFor(Image.class)
039 public class ImagePropertyEditor extends AbstractPropertyEditor {
040 protected void setValueInternal(Object value) {
041 if (null == value) {
042 super.setValueInternal(null);
043 } else if (value instanceof CharSequence) {
044 handleAsString(String.valueOf(value));
045 } else if (value instanceof File) {
046 handleAsFile((File) value);
047 } else if (value instanceof URL) {
048 handleAsURL((URL) value);
049 } else if (value instanceof URI) {
050 handleAsURI((URI) value);
051 } else if (value instanceof InputStream) {
052 handleAsInputStream((InputStream) value);
053 } else if (value instanceof ImageInputStream) {
054 handleAsImageInputStream((ImageInputStream) value);
055 } else if (value instanceof byte[]) {
056 handleAsByteArray((byte[]) value);
057 } else if (value instanceof Image) {
058 super.setValueInternal(value);
059 } else {
060 throw illegalValue(value, Image.class);
061 }
062 }
063
064 private void handleAsString(String str) {
065 if (isBlank(str)) {
066 super.setValueInternal(null);
067 return;
068 }
069 handleAsURL(getClass().getClassLoader().getResource(str));
070 }
071
072 private void handleAsFile(File file) {
073 try {
074 super.setValueInternal(ImageIO.read(file));
075 } catch (IOException e) {
076 throw illegalValue(file, Image.class, e);
077 }
078 }
079
080 private void handleAsURL(URL url) {
081 try {
082 super.setValueInternal(ImageIO.read(url));
083 } catch (IOException e) {
084 throw illegalValue(url, Image.class, e);
085 }
086 }
087
088 private void handleAsURI(URI uri) {
089 try {
090 handleAsURL(uri.toURL());
091 } catch (MalformedURLException e) {
092 throw illegalValue(uri, Image.class, e);
093 }
094 }
095
096 private void handleAsInputStream(InputStream stream) {
097 try {
098 super.setValueInternal(ImageIO.read(stream));
099 } catch (IOException e) {
100 throw illegalValue(stream, Image.class, e);
101 }
102 }
103
104 private void handleAsImageInputStream(ImageInputStream stream) {
105 try {
106 super.setValueInternal(ImageIO.read(stream));
107 } catch (IOException e) {
108 throw illegalValue(stream, Image.class, e);
109 }
110 }
111
112 private void handleAsByteArray(byte[] bytes) {
113 super.setValueInternal(Toolkit.getDefaultToolkit().createImage(bytes));
114 }
115 }
|