Package net.sf.jasperreports.engine.util

Source Code of net.sf.jasperreports.engine.util.JRJdk13ImageReader

/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.jasperreports.engine.util;

import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Panel;
import java.awt.Toolkit;

import net.sf.jasperreports.engine.JRException;


/**
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version $Id: JRJdk13ImageReader.java 3034 2009-08-27 11:58:04Z teodord $
*/
public class JRJdk13ImageReader implements JRImageReader
{

 
  /**
   *
   */
  public Image readImage(byte[] bytes) throws JRException
  {
    Image image = Toolkit.getDefaultToolkit().createImage(bytes);

    MediaTracker tracker = new MediaTracker(new Panel());
    tracker.addImage(image, 0);
    try
    {
      tracker.waitForID(0);
    }
    catch (Exception e)
    {
      //image = null;
      throw new JRException(e);
    }

    if(tracker.isErrorID(0))
    {
      throw new JRException("Image read failed.");
    }

    return image;
  }


}
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