com.lynden.gmapsfx.util.MarkerImageFactory Maven / Gradle / Ivy
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/*
* Copyright 2016
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.lynden.gmapsfx.util;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.embed.swing.SwingFXUtils;
import javafx.scene.image.Image;
import javax.imageio.ImageIO;
/**
*
* @author Geoff Capper
*/
public class MarkerImageFactory {
/** Takes a URI for an image contained within an application jar file and
* converts it into a data URI for use in a MarkerOptions object.
*
* Usage:
*
* markerOptions.icon(MarkerImageFactory.createMarkerImage("/path/to/my/image.jpg", "jpg"));
*
* Currently tested to work with "jpg" and "png" files.
*
* @param uri
* @param type
* @return
*/
public static String createMarkerImage(String uri, String type) {
String dataURI = null;
URL myURL = MarkerImageFactory.class.getResource(uri);
if (myURL != null) {
String myURI = myURL.toExternalForm();
Image img = new Image(myURI);
String imageMimeType = "image/" + type;
try {
dataURI = "data:" + imageMimeType + ";base64,(" +
javax.xml.bind.DatatypeConverter.printBase64Binary(getImageBytes(SwingFXUtils.fromFXImage(img, null), type)) + ")";
} catch (IOException ioe) {
Logger.getLogger(MarkerImageFactory.class.getName()).log(Level.WARNING, "Cannot create marker image", ioe);
dataURI = null;
}
}
return dataURI;
}
private static byte[] getImageBytes(BufferedImage image, String type) throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ImageIO.write(image, type, bos);
byte[] imageBytes = bos.toByteArray();
bos.close();
return imageBytes;
}
}