Hi Matthew,
Matthew Wilson <[EMAIL PROTECTED]> wrote on 01/20/2008 04:47:11 PM:
> I have written a Swing component which wraps JSVGCanvas, and I would
> like to capture DOM mouse click events so that I can draw on the canvas
> where the user has clicked. So I register and define my event listener
> like this:
Does your document have anything in it?
If there is no content in the document there is nothing to click
(or move, or mouseover/out) with. If you want to catch all events
on the canvas it's common to add a large rectangle that covers
the entire canvas (often done using percentages).
<rect x="-1000%" y="-1000%" width="3000%" height="3000%"
visibility="hidden" pointer-events="fill"/>
> public class PlanViewPanel extends JPanel implements MouseWheelListener,
> EventListener, SVGLoadEventDispatcherListener {
>
> ....... stuff ......
>
> public PlanViewPanel(SVGDocument svg) {
> svgCanvas.setDocument(svg);
> svgCanvas.addMouseWheelListener(this); // this is for
> something else entirely
> scrollPane = new JSVGScrollPane(svgCanvas);
> scrollPane.setScrollbarsAlwaysVisible(true);
>
>
scrollPane.setPreferredSize(Toolkit.getDefaultToolkit().getScreenSize());
> add(scrollPane);
> setMinimumSize(new Dimension(800,600));
>
> svgCanvas.getSVGDocument().getRootElement().addEventListener("click",
> this, false);
> }
>
> .... stuff ....
> public void handleEvent(org.w3c.dom.events.Event evt) {
> System.out.println("did something");
>
> }
>
> }
>
> but my event handler is never called (I've placed a breakpoint and run
> it in the eclipse debugger to confirm this). I have confirmed also
> using a debugger that the event handler is present in the hashtable in
> the document root's EventSupport structure, but I do not understand why
> it is not called. I have messed around with various different event
> types and tried bubble/capture, but nothing works.
>
> Using JDK 1.6.0 and Batik 1.7.
>
> Any suggestions would be greatly appreciated.
>
> Matthew Wilson.
>
>
>
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