Event listener problem

[mahesh karanth <tu...@yahoo.com>]

Hello All,
  I want to handle a "click" event in a SVG document.

My code looks like this

public class PositionNrSelect implements EventListener
    {
        public void handleEvent(Event evt) 
        {
            Element e=(Element)evt.getTarget();
            if(e.getFirstChild()!=null)
            {
                  // Do necessary processing....
            }
            
        }
    }


I am adding the EVent listener as follows

String parser = XMLResourceDescriptor.getXMLParserClassName();
                     SAXSVGDocumentFactory f = new SAXSVGDocumentFactory(parser);
                     svgDocument =  (SVGDocument) f.createDocument(svgFileSys.toURL().toString());
                     svgCanvas.setDocument(svgDocument);
Element elt2 = svgCanvas.getSVGDocument().getRootElement();
                     EventTarget t2 = (EventTarget)elt2;
                     t2.addEventListener("click",new PositionNrSelect(),true);

Problem I am facing is ,Whenever I click on a number which is shown on loaded SVG I am able to enter into the evnt handling code that I have written , after this I am getting error Dailog of following type.
----
SVG Error:
E:\Mahesh\projects\geproject\Valid-test-data\new-test-data\case1\F3.072.200--001TKGMUL_03\UT_1 (The system cannot find the file specified)
-----
If I click on "details"  button error shown is as folows

java.io.FileNotFoundException: E:\Mahesh\projects\geproject\Valid-test-data\new-test-data\case1\F3.072.200--001TKGMUL_03\UT_1 (The system cannot find the file specified)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(Unknown Source)
    at java.io.FileInputStream.<init>(Unknown Source)
    at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
    at org.apache.batik.util.ParsedURLData.openStreamInternal(Unknown Source)
    at org.apache.batik.util.ParsedURLData.openStream(Unknown Source)
    at org.apache.batik.util.ParsedURL.openStream(Unknown Source)
    at org.apache.batik.dom.svg.SAXSVGDocumentFactory.createDocument(Unknown Source)
    at org.apache.batik.dom.svg.SAXSVGDocumentFactory.createSVGDocument(Unknown Source)
    at org.apache.batik.bridge.DocumentLoader.loadDocument(Unknown Source)
    at org.apache.batik.swing.svg.SVGDocumentLoader.run(Unknown Source)

After which click has no effects ,either I donmt get error nor I the control enters the Event handling code.
What is the problem?
Is this possible fource to ignore the error dialog?

Please reply

Note:
  I am pasting that part of SVG on which I am clicking...

<g id="UT">
  <metadata id="CorelCorpID_2Corel-Layer"/>
  <g id="UT_1_REF">
   <polyline id="UT_1_REF_1" class="fil2 str2" points="203.483,72.9546 203.483,67.3247 209.113,67.3247 209.113,72.9546 203.483,72.9546 "/>
   <line id="UT_1_REF_2" class="fil2 str2" x1="166.739" y1="105.01" x2="203.713" y2= "71.3094" />
   <polyline id="UT_1_REF_3" class="fil2 str3" points="203.686,72.7773 203.686,67.5537 208.91,67.5537 208.91,72.7773 203.686,72.7773 "/>
   <a xlink:href="UT_1">
    <rect class="fil4" x="205" y="68" width="1" height="3"/>
    <g transform="matrix(0.691005 0 0 1 108.866 -19.0694)">
     <text x="140.034" y="90.4591" id="UT_1_REF_4" class="fil5 fnt0">1</text>
    </g>
   </a>
  </g>



Best Regards
  Mahesh Karanth




			
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Re: Event listener problem

[th...@kodak.com]

Hi Mahesh,

mahesh karanth <tu...@yahoo.com> wrote on 01/11/2006 01:08:15 AM:

>   I want to handle a "click" event in a SVG document.

> Problem I am facing is ,Whenever I click on a number which is shown on 
loaded 
> SVG I am able to enter into the evnt handling code that I have written , 
after
> this I am getting error Dailog of following type.
> ----
> SVG Error:
> E:\Mahesh\projects\geproject\Valid-test-data\new-test-data\case1\F3.072.
> 200--001TKGMUL_03\UT_1 (The system cannot find the file specified)

   Your SVG document has 'links' in it (the 'a' element with an xlink:href 

attribute).  The default behavior when one of these elements (or 
it's children) is clicked is to load the referenced document (which 
it appears you do not have), just like in HTML.

   There are two solutions to this:
        1) Remove the 'a' elements (the correct solution)
        2) call 'preventDefault()' on the event object passed to your
         event handler (the 'hack' solution ;).

>    <a xlink:href="UT_1">
>     <rect class="fil4" x="205" y="68" width="1" height="3"/>
>     <g transform="matrix(0.691005 0 0 1 108.866 -19.0694)">
>      <text x="140.034" y="90.4591" id="UT_1_REF_4" class="fil5 
fnt0">1</text>
>     </g>
>    </a>

PS: Questions like this should really be asked on the 'users' list
    not on the developers list.


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