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