--- a/flys-client/src/main/java/de/intevation/flys/client/server/ChartOutputServiceImpl.java	Mon Oct 17 17:28:24 2011 +0000
+++ b/flys-client/src/main/java/de/intevation/flys/client/server/ChartOutputServiceImpl.java	Mon Oct 17 17:33:27 2011 +0000
@@ -38,6 +38,8 @@
             String type      = req.getParameter("type");
             String locale    = req.getParameter("locale");
 
+            prepareHeader(req, resp);
+
             Document request = ClientProtocolUtils.newOutCollectionDocument(
                 uuid, type, type,
                 ChartServiceHelper.getChartAttributes(prepareChartAttributes(req)));
@@ -70,8 +72,60 @@
         attr.put("maxx", req.getParameter("maxx"));
         attr.put("miny", req.getParameter("miny"));
         attr.put("maxy", req.getParameter("maxy"));
+        attr.put("format", req.getParameter("format"));
 
         return attr;
     }
+
+
+    protected void prepareHeader(
+        HttpServletRequest  req,
+        HttpServletResponse resp
+    ) {
+        String export = req.getParameter("export");
+
+        if (export != null && export.equals("true")) {
+            String format = req.getParameter("format");
+
+            if (format == null || format.length() == 0) {
+                format = "png";
+            }
+
+            String fn = "chart_export" + getFileExtension(format);
+
+            resp.setHeader("Content-Disposition", "attachment;filename=" + fn);
+            resp.setHeader("Content-Type", getMimeType(format));
+        }
+    }
+
+
+    protected String getFileExtension(String format) {
+        if (format.equals("png")) {
+            return ".png";
+        }
+        else if (format.equals("pdf")) {
+            return ".pdf";
+        }
+        else if (format.equals("svg")) {
+            return ".svg";
+        }
+
+        return ".png";
+    }
+
+
+    protected String getMimeType(String format) {
+        if (format.equals("png")) {
+            return "image/png";
+        }
+        else if (format.equals("pdf")) {
+            return "application/pdf";
+        }
+        else if (format.equals("svg")) {
+            return "svg+xml";
+        }
+
+        return "image/png";
+    }
 }
 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :