--- a/gnv-artifacts/src/main/java/de/intevation/gnv/exports/ChartExportHelper.java	Mon Nov 30 09:51:59 2009 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/exports/ChartExportHelper.java	Mon Nov 30 14:18:37 2009 +0000
@@ -13,9 +13,14 @@
 import java.awt.geom.Rectangle2D;
 import java.awt.geom.Rectangle2D.Double;
 import java.io.OutputStream;
+import java.io.OutputStreamWriter;
 import java.io.IOException;
+import java.io.UnsupportedEncodingException;
 import javax.imageio.ImageIO;
 
+import org.apache.batik.dom.svg.SVGDOMImplementation;
+import org.apache.batik.svggen.SVGGraphics2D;
+import org.apache.batik.svggen.SVGGraphics2DIOException;
 import org.apache.log4j.Logger;
 
 import org.jfree.chart.JFreeChart;
@@ -27,6 +32,7 @@
 public class ChartExportHelper {
 
     private static final String  DEFAULT_PAGE_SIZE = "A4";
+    private static final String  DEFAULT_ENCODING  = "UTF-8";
 
     private static Logger log = Logger.getLogger(ChartExportHelper.class);
 
@@ -51,8 +57,33 @@
     }
 
 
-    public static void exportSVG() {
-        log.info("export chart as svg (not implemented yet)");
+    public static void exportSVG(
+        OutputStream out,
+        JFreeChart   chart,
+        String       encoding,
+        int          width,
+        int          height
+    ) {
+        log.info("export chart as svg");
+
+        if (encoding == null)
+            encoding = DEFAULT_ENCODING;
+
+        SVGDOMImplementation svgDom   = new SVGDOMImplementation();
+        org.w3c.dom.Document document = svgDom.createDocument(null,"svg",null);
+        SVGGraphics2D        graphics = new SVGGraphics2D(document);
+
+        chart.draw(graphics, new Rectangle2D.Double(0.0D, 0.0D,width,height));
+
+        try {
+            graphics.stream(new OutputStreamWriter(out, encoding));
+        }
+        catch (SVGGraphics2DIOException svge) {
+            log.error("Error while writing svg export to output stream.", svge);
+        }
+        catch (UnsupportedEncodingException uee) {
+            log.error("Unsupported encoding: " + encoding, uee);
+        }
     }