X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fbe%2Fnikiroo%2Fjvcard%2Fresources%2FStringUtils.java;h=1772bdfdb19582bd729cdc63e946e54d9a2705f9;hb=a1783d00d03245556a833bc02fbe2865225c2501;hp=2009dce628ef48864d48cf51c31bab5e6eae9813;hpb=3634193b7a8927e68a3ae3d38fff4f6bd36c4ee5;p=jvcard.git

diff --git a/src/be/nikiroo/jvcard/resources/StringUtils.java b/src/be/nikiroo/jvcard/resources/StringUtils.java
index 2009dce..1772bdf 100644
--- a/src/be/nikiroo/jvcard/resources/StringUtils.java
+++ b/src/be/nikiroo/jvcard/resources/StringUtils.java
@@ -1,5 +1,13 @@
 package be.nikiroo.jvcard.resources;
 
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.text.Normalizer;
@@ -9,6 +17,9 @@ import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.regex.Pattern;
 
+import javax.imageio.ImageIO;
+import javax.xml.bind.DatatypeConverter;
+
 import com.googlecode.lanterna.gui2.LinearLayout.Alignment;
 
 public class StringUtils {
@@ -49,7 +60,7 @@ public class StringUtils {
 	 */
 	static public String padString(String text, int width, boolean cut,
 			Alignment align) {
-		
+
 		if (width >= 0) {
 			if (text == null)
 				text = "";
@@ -172,6 +183,83 @@ public class StringUtils {
 		}
 	}
 
+	/**
+	 * Convert the given {@link Image} object into a Base64 representation of
+	 * the same {@link Image}. object.
+	 * 
+	 * @param image
+	 *            the {@link Image} object to convert
+	 * 
+	 * @return the Base64 representation
+	 * 
+	 * @throws IOException
+	 *             in case of IO error
+	 */
+	static public String fromImage(BufferedImage image) throws IOException {
+		String imageString = null;
+		ByteArrayOutputStream out = new ByteArrayOutputStream();
+
+		ImageIO.write(image, "jpeg", out);
+		byte[] imageBytes = out.toByteArray();
+
+		imageString = DatatypeConverter.printBase64Binary(imageBytes);
+
+		out.close();
+
+		return imageString;
+	}
+
+	/**
+	 * Convert the given {@link File} image into a Base64 representation of the
+	 * same {@link File}.
+	 * 
+	 * @param file
+	 *            the {@link File} image to convert
+	 * 
+	 * @return the Base64 representation
+	 * 
+	 * @throws IOException
+	 *             in case of IO error
+	 */
+	static public String fromImage(File file) throws IOException {
+		String fileString = null;
+		ByteArrayOutputStream out = new ByteArrayOutputStream();
+
+		byte[] buf = new byte[8192];
+		InputStream in = new FileInputStream(file);
+
+		int c = 0;
+		while ((c = in.read(buf, 0, buf.length)) > 0) {
+			out.write(buf, 0, c);
+		}
+		out.flush();
+		in.close();
+
+		fileString = DatatypeConverter.printBase64Binary(out.toByteArray());
+		out.close();
+
+		return fileString;
+	}
+
+	/**
+	 * Convert the given Base64 representation of an image into an {@link Image}
+	 * object.
+	 * 
+	 * @param b64data
+	 *            the {@link Image} in Base64 format
+	 * 
+	 * @return the {@link Image} object
+	 * 
+	 * @throws IOException
+	 *             in case of IO error
+	 */
+	static public BufferedImage toImage(String b64data) throws IOException {
+		BufferedImage image = ImageIO.read(new ByteArrayInputStream(
+				DatatypeConverter.parseBase64Binary(b64data)));
+		image.toString();
+		return image;
+	}
+
 	/**
 	 * Return a hash of the given {@link String}.
 	 *