diff -r 1612dbcec451 -r 639991d0808a java/cewolf-1.0/src/main/java/de/laures/cewolf/taglib/tags/LegendTag.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/cewolf-1.0/src/main/java/de/laures/cewolf/taglib/tags/LegendTag.java	Sat Feb 28 21:31:02 2009 +0100
@@ -0,0 +1,135 @@
+/* ================================================================
+ * 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;
+
+import de.laures.cewolf.CewolfException;
+import de.laures.cewolf.ChartHolder;
+import de.laures.cewolf.ChartImage;
+import de.laures.cewolf.Configuration;
+import de.laures.cewolf.Storage;
+import de.laures.cewolf.WebConstants;
+import de.laures.cewolf.taglib.ChartImageDefinition;
+import de.laures.cewolf.taglib.TaglibConstants;
+import de.laures.cewolf.taglib.html.HTMLImgTag;
+import de.laures.cewolf.taglib.util.PageUtils;
+
+/**
+ * Tag <legend> which can be used to render a chart's legend
+ * separately somewhere in the page.
+ * @author  Guido Laures
+ */
+public class LegendTag extends HTMLImgTag implements CewolfRootTag, TaglibConstants, WebConstants {
+
+    private static final String DEFAULT_MIME_TYPE = MIME_PNG;
+    private static final int DEFAULT_TIMEOUT = 300;
+    private int timeout = DEFAULT_TIMEOUT;
+    private transient String sessionKey;
+    private transient String renderer;
+    private String mimeType = DEFAULT_MIME_TYPE;
+
+    public int doStartTag() throws JspException {
+        ChartHolder cd = PageUtils.getChartHolder(getChartId(), pageContext);
+        ChartImage cid = new ChartImageDefinition(cd, width, height, ChartImage.IMG_TYPE_LEGEND, mimeType,timeout);
+        Storage storage = Configuration.getInstance(pageContext.getServletContext()).getStorage();
+        try {
+        	this.sessionKey = storage.storeChartImage(cid, pageContext);
+        } catch(CewolfException cwex){
+        	log.error(cwex);
+        	throw new JspException(cwex.getMessage());
+        }
+        return SKIP_BODY;
+    }
+
+    public int doEndTag() throws JspException {
+		super.doStartTag();
+		final StringBuffer buffer = new StringBuffer(" src=\"");
+		buffer.append(getImgURL());
+		buffer.append("\"");
+		try {
+			pageContext.getOut().write(buffer.toString());
+		} catch (IOException ioex) {
+			reset();
+			log.error(ioex);
+			throw new JspException(ioex.getMessage());
+		}
+		return super.doEndTag();
+    }
+
+	/**
+	* To enable further server side scriptings on JSP output the session ID is always
+	* encoded into the image URL even if cookies are enabled on the client side.
+	*/
+	protected String getImgURL() {
+		return ChartImgTag.buildImgURL(renderer, pageContext, sessionKey, width, height, mimeType, forceSessionId,removeAfterRender);
+	}
+
+    protected void reset() {
+        // as of a weird JSP compiler in resin
+        // a reused tag's attribute is only set if 
+        // it changes. So width an height may not
+        // be unset to ensure correct values.
+        int lHeight = this.height;
+        int lWidth = this.width;
+        int lTimeout = this.timeout;
+        super.reset();
+        this.height = lHeight;
+        this.width = lWidth;
+        this.timeout = lTimeout;
+    }
+
+    public String getChartId() {
+        return getId();
+    }
+
+    public void setRenderer(String rend) {
+        this.renderer = rend;
+    }
+
+    /**
+     * Sets the mimeType.
+     * @param mimeType The mimeType to set
+     */
+    public void setMime(String mimeType) {
+        this.mimeType = mimeType;
+    }
+
+    /**
+     * @return Returns the timeout.
+     */
+    public int getTimeout()
+    {
+      return timeout;
+    }
+    /**
+     * @param timeout The timeout to set.
+     */
+    public void setTimeout( int timeout )
+    {
+      this.timeout = timeout;
+    }
+}