Package net.sf.jasperreports.components.barcode4j

Source Code of net.sf.jasperreports.components.barcode4j.BarcodeDesignConverter

/*
* 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.components.barcode4j;

import net.sf.jasperreports.engine.JRComponentElement;
import net.sf.jasperreports.engine.JRPrintElement;
import net.sf.jasperreports.engine.JRRenderable;
import net.sf.jasperreports.engine.base.JRBasePrintImage;
import net.sf.jasperreports.engine.component.ComponentDesignConverter;
import net.sf.jasperreports.engine.convert.ReportConverter;
import net.sf.jasperreports.engine.type.ScaleImageEnum;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
*
* @author Lucian Chirita (lucianc@users.sourceforge.net)
* @version $Id: BarcodeDesignConverter.java 3491 2010-03-01 15:52:55Z shertage $
*/
public class BarcodeDesignConverter implements ComponentDesignConverter
{

  private static final Log log = LogFactory.getLog(BarcodeDesignConverter.class);
 
  public JRPrintElement convert(ReportConverter reportConverter,
      JRComponentElement element)
  {
    JRBasePrintImage printImage = new JRBasePrintImage(
        reportConverter.getDefaultStyleProvider());
    reportConverter.copyBaseAttributes(element, printImage);
    printImage.setScaleImage(ScaleImageEnum.RETAIN_SHAPE);
   
    JRRenderable barcodeImage = evaluateBarcode(reportConverter, element);
    printImage.setRenderer(barcodeImage);
   
    return printImage;
  }

  protected JRRenderable evaluateBarcode(ReportConverter reportConverter,
      JRComponentElement element)
  {
    try
    {
      BarcodeDesignEvaluator evaluator = new BarcodeDesignEvaluator(element,
          reportConverter.getDefaultStyleProvider());
      return evaluator.evaluateImage();
    }
    catch (Exception e)
    {
      if (log.isWarnEnabled())
      {
        log.warn("Failed to create barcode preview", e);
      }
     
      return null;
    }
  }

}
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