Load a JPEG image from a given location. - Java 2D Graphics

Java examples for 2D Graphics:JPEG

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Description

Load a JPEG image from a given location.

Demo Code

/******************************************************************************
 * Product: Adempiere ERP & CRM Smart Business Solution                       *
 * Copyright (C) 1999-2006 ComPiere, Inc. All Rights Reserved.                *
 * This program is free software; you can redistribute it and/or modify it    *
 * under the terms version 2 of the GNU General Public License as published   *
 * by the Free Software Foundation. This program is distributed in the hope   *
 * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied *
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.           *
 * See the GNU General Public License for more details.                       *
 * You should have received a copy of the GNU General Public License along    *
 * with this program; if not, write to the Free Software Foundation, Inc.,    *
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.                     *
 * For the text or an alternative of this public license, you may reach us    *
 * ComPiere, Inc., 2620 Augustine Dr. #245, Santa Clara, CA 95054, USA        *
 * or via info@compiere.org or http://www.compiere.org/license.html           *
 *****************************************************************************/
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.GradientPaint;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Paint;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.geom.RectangularShape;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
import javax.swing.JComponent;

public class Main{
    /**   Logger         */
    private static Logger log = Logger.getLogger(CompiereUtils.class
            .getName());//from ww w .j  a v a  2 s  . com
    /**
     *  Load a JPEG image from a given location.
     *
     *  @param url URL where the image file is located.
     *  @return loaded image at path or url
     */
    public static synchronized BufferedImage loadBufferedJPEGImage(URL url) {
        BufferedImage image = null;
        if (url != null) {
            //InputStream in = null;
            try {
                //in = url.openStream();
                //JPEGImageDecoder decoder = JPEGCodec.createJPEGDecoder(in);
                //image = decoder.decodeAsBufferedImage();
                image = ImageIO.read(url);
            } catch (Exception e) {
                log.severe("URL: " + url + " - " + e.getMessage());
                image = null;
            } finally {
                /*try
                {
                   if (in != null)
                      in.close();
                }
                catch (IOException ioe)
                {
                   log.severe("URL: " + url + " - " + ioe.getMessage());
                }*/
            }
            if (image != null) {
                log.config("Image type : " + image.getType());
                if (image.getWidth() <= 0 || image.getHeight() <= 0) {
                    log.severe("URL: " + url + " =0");
                    image = null;
                }
            }
        }
        return image;
    }
}

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