RE: EXTERNAL: Batik - EventHandler

This is how I add event listeners:

*         Get the element out of the document.

*         Access the eventtarget out of the element and add the listener to it.


element = (SVGElement) document.getElementById("someElement");
if (element!= null) {
                EventTarget target = (EventTarget) element;
                target.addEventListener("mouseover",
                        new OnMouseOverListener(), false);
                target.addEventListener("mouseout",
                        new OnMouseOutListener(), false);
            } else {
....

I tend to add a gvttreebuilderlistener to the canvas to know when the svg is ready to be access.

public void gvtBuildStarted(GVTTreeBuilderEvent event) {}

                }
public void gvtBuildCompleted(GVTTreeBuilderEvent event) {}

And when making an update to a SVG element you should do it inside a Runnable interface.

Hope this helps.

-Jose

From: Bachir Assi [mailto:[email protected]]
Sent: Monday, October 17, 2011 8:56 AM
To: [email protected]
Subject: EXTERNAL: Batik - EventHandler

Hello,

I'm trying to open an SVG file in JAVA using batik-1.7 library, and add some mouse events to it.
But this is not possible unless i add a "script" tag to the SVG file.
(If i don't write "<script> </script>" in the SVG file, i cannot access the "handleEvent" method)

(Windows 7, jdk1.6.0_20_x32)



Here is a part of my JAVA file :

-------------------------------------------------------------------------------------------------------

svgCanvas.addSVGDocumentLoaderListener(new SVGDocumentLoaderAdapter() {
      public void documentLoadingStarted(SVGDocumentLoaderEvent e) {
               label.setText("Document Loading...");
      }
      public void documentLoadingCompleted(SVGDocumentLoaderEvent e) {
               label.setText("Document Loaded.");
               addListeners(svgCanvas.getSVGDocument().getRootElement());
      }
});
private void addListeners(SVGSVGElement element) {
          element.addEventListener("mousedown"
                                                , new EventListener() {
                                                          public void handleEvent(Event evt) {
                                                                  /*Add handling code*/
                                                          }
                                                 }
                                                   , false);
}

-------------------------------------------------------------------------------------------------------


The SVG file that i'm loading is "circles.svg" :


-------------------------------------------------------------------------------------------------------
<?xml version="1.0"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN"
              "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">

<script>
</script>













<svg xmlns="http://www.w3.org/2000/svg">
    <g style="fill-opacity:0.7;">
        <circle cx="6.5cm" cy="2cm" r="100" style="fill:red; stroke:black; stroke-width:0.1cm" transform="translate(0,50)" />
        <circle cx="6.5cm" cy="2cm" r="100" style="fill:blue; stroke:black; stroke-width:0.1cm" transform="translate(70,150)" />
        <circle cx="6.5cm" cy="2cm" r="100" style="fill:green; stroke:black; stroke-width:0.1cm" transform="translate(-70,150)"/>
    </g>
</svg>
-------------------------------------------------------------------------------------------------------


How can i be able to access the eventHandler without adding a script tag (The RED part in SVG file) ?

Thank you for your help, and hope to hear from you soon

Regards,
Bashir