redrawing JSVGCanvas after changes

[Steven Gollery]

I'm having trouble getting the JSVGCanvas to update after I change the 
properties of an element. Answers to similar questions in the archives 
seem to involve subclasses of JSVGCanvas, overlays, or some other 
situations that don't seem to apply. Here's the relevant code:

     DOMImplementation impl = SVGDOMImplementation.getDOMImplementation();
     String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
     doc = (SVGDocument)impl.createDocument(svgNS, "svg", null);
     svgCanvas.setSVGDocument(doc);
     svgCanvas.setDocumentState(JSVGCanvas.ALWAYS_DYNAMIC);
     Element svgRoot = doc.getDocumentElement();

     // set the width and height attribute on the root svg element
     svgRoot.setAttributeNS(null, "width", "400");
     svgRoot.setAttributeNS(null, "height", "450");
     Element rectangle = doc.createElementNS(svgNS, "rect");
     rectangle.setAttributeNS(null, "x", "10");
     rectangle.setAttributeNS(null, "y", "20");
     rectangle.setAttributeNS(null, "width", "100");
     rectangle.setAttributeNS(null, "height", "50");
     rectangle.setAttributeNS(null, "style", "fill:red");
     svgRoot.appendChild(rectangle);
     ((EventTarget)rectangle).addEventListener("click", new 
EventListener() {
         public void handleEvent(org.w3c.dom.events.Event evt) {
            Element target = (Element)evt.getTarget();
            String style = target.getAttributeNS(null, "style");
            if ("fill:red".equals(style)) {
               target.setAttributeNS(null, "style", "fill:blue");
            } else {
               target.setAttributeNS(null, "style", "fill:red");
            }
         }}, false);

This starts out as a copy of one of the code samples. I inserted the 
"addEventListener" part.

handleEvent does get called each time I click the rectangle, and the 
"style" attribute does change, but the displayed color of the rectangle 
stays red. I've tried calling 
svgCanvas.paintComponent(svgCanvas.getGraphics( )) after resetting the 
style, but no effect.

Obviously I'm missing something basic here, or I'm on the wrong track 
altogether. Any help would be appreciated.

Thanks,

Steven Gollery
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