/* ================================================================

  * Cewolf : Chart enabling Web Objects Framework

  * ================================================================

  *

  * Project Info:  http://cewolf.sourceforge.net

  * Project Lead:  Guido Laures (guido@laures.de);

  *

  * (C) Copyright 2002, by Guido Laures

  *

  * This library 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 2.1 of

  * the License, or (at your option) any later version.

  *

  * This library 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 this

  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,

  * Boston, MA 02111-1307, USA.

  */

 package de.laures.cewolf.taglib.tags;

 import java.io.IOException;

 import javax.servlet.jsp.JspException;

 /**

  * This tag only renders the image URL instead of a full <img> tag.

  * @author glaures

  * @see de.laures.cewolf.taglib.tags.ChartImgTag

  */

 public class ChartImgURLTag extends ChartImgTag {

 	public static final String VAR_NAME = "var";

 	String var = null;

     public int doEndTag() throws JspException {

         try {

         	if(var == null){

 	            pageContext.getOut().write(getImgURL());

         	} else {

         		pageContext.setAttribute(var, getImgURL());

         	}

         } catch(IOException ioex){

         	log.error(ioex);

             throw new JspException(ioex.getMessage());

         }

     	return doAfterEndTag(EVAL_PAGE);

     }

 	/**

 	 * @see de.laures.cewolf.taglib.tags.CewolfBodyTag#reset()

 	 */

 	protected void reset() {

 		super.reset();

 		var = null;

 	}

 	/**

 	 * Returns the var.

 	 * @return String

 	 */

 	public String getVar() {

 		return var;

 	}

 	/**

 	 * Sets the var.

 	 * @param var The var to set

 	 */

 	public void setVar(String var) {

 		this.var = var;

 	}

 }