Hi,
Instead of calling the javascript from updatemanager thread, I
manipulate the DOM tree of the svg now. Here is the code:
UpdateManager um = svgCanvas.getUpdateManager();
ScriptRun1 sr = new ScriptRun1(doc);
try{
um.getUpdateRunnableQueue().invokeLater(sr);
}catch(Throwable t){
t.printStackTrace();
}
public class ScriptRun1 implements Runnable{
Document doc;
public ScriptRun1(Document doc) {
this.doc = doc;
}
public void run() {
Element element = doc.getElementById("testContent");
Element node = (Element)element.getChildNodes().item(1);
int x = Integer.parseInt(node.getAttribute("x"));
x = x + 10;
node.setAttribute("x", "" + x);
}
}
I'm just trying to move the position of a text field.
However the svgCanvas does not reflect the changes. What am I doing
wrong?
Frederik
-----Original Message-----
From: Thomas DeWeese [mailto:[EMAIL PROTECTED]
Sent: maandag 19 juli 2004 15:39
To: Batik Users
Subject: Re: Backend driven svg application
Frederik Santens wrote:
> I had a javascript function named "alert" which just called
> alert("Helloworld");
>
> When I called my alert js function from within java
> (Interpeter.evaluate("alert()")) I got this StackOverflowError. When I
> changed the name of the function to 'displayMessage' it worked.
Probably
> something with reserved words.
Well just confusion about which 'alert' function to call, in JS
there is no function overloading so your 'alert' function called
itself.
> Can I pass references to custom objects to the javascript too?
Yes, although you'll have to work at it a bit since you can't
easily reference your custom object from the string. The easiest
thing to do is use 'bind' to associate your custom object with
a global variable in JS, then have your function just use that
global var - Iky, I know. Also be careful as it is really easy to
introduce memory leaks this way.
> You mentioned also in the previous reply that I don't need javascript
to
> do the dynamic updates of my rendered svg. Do you mean manipulating
the
> DOM tree via the updatemanager thread is the alternative way of doing
> this or are there other ways?
This is what I mean. Once you are running in the Update manager
thread you can just manipulate the DOM tree using Java. What other
way did you have in mind?
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