Your way using interactors is correct. I do the same and it works fine.
Be aware, that your interactor will be invoked at the correct mouse-event.
The first think you must check is the startInteraction-method. I put into these method
a System.out.println("invoke...") debug output.
Adding your interactor to the actions is not necessary !
The next trick is to realize�: what returns my interactor at endInteraction().
Check the former messages in the mailing-list. I had added my example of an
interactor-class. My first example was the zoomInteractor too.
Yor method to manipulate the elements via DOM is absolut correct ! I also manipulate
the DOM but I don not need the
class SVGGeneratorContext. We (me colleque and I) have build for each shape his own
interactor (create).
I recommend you to extends JSVGCanvas and create an new member variable to notify what
element tag you want to create and in the startInteraction() method ask for it.
Jan
-----Urspr�ngliche Nachricht-----
Von: Eric Delacroix [mailto:[EMAIL PROTECTED]
Gesendet: Donnerstag, 13. M�rz 2003 16:17
An: [EMAIL PROTECTED]
Betreff: Re: Interactors and MouseEvents
Hello,
I'm currently trying to do the same. I load a document in a Panel where
there is an expension of the JSVGCanvas. I already use the zoom interactors
that I customized and registered.
Now I want to make a new interactor, following the example of the zoom's
one.
So I made a class StiffAction, that extends AbstractAction, where I define
the actionPerformed as a function that adds a shape to the DOM (I think I'll
be doing that through the DOM, with an SVGGeneratorContext, somebody could
tell me if I'm totally wrong)
I also wrote an AbstractStiffInteractor, where the methods for drawing the
pre-shape on the canvas are defined. And In my extension of JSVGCanvas, I
made an interactor extending this class.
Finally, I add this interactor in the constructor of MySVGCanvas (by doing
getInteractor.add(stiffInteractor); and I also add this in the
actionMap.But... it doesn't work :(
I'm explaining all this hoping somebody would understand the way I'm trying
to do it, and maybe correct me.
The first problem I have is that when I add my new interactor, the
link-function I made doesn't work anymore...
I know I'm not so clear, but the problem I have seems even nebulous...
Every help here is always a good help, thank you
Eric Delacroix
Facult� des Sciences appliqu�es
ULB Brussels
>From: "Baron, Randy {PRG~Basel}" <[EMAIL PROTECTED]>
>Reply-To: "Batik Users" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Interactors and MouseEvents
>Date: Thu, 13 Mar 2003 12:54:48 +0100
>
>hi-
> I'm trying to figure out how to use the Interactors (and why actually,
>instead of just using listeners). I made a small test class that
>displays an svg document (a couple of circles) and adds a custom
>Interactor. I wanted to print out some info when I clicked on the
>JSVGCanvas, like what Element was clicked on. I did this before in a
>different way, by adding listeners to the JSVGCanvas (snippet below). I
>was wondering if the same info could be obtained from within the
>Interactor context (some kind of 'casting' java.awt.event.MouseEvent
>into an org.w3c.dom.events.MouseEvent)?
> In the end I need to write a program that displays svg elements (no
>big surprise) and allows the user to modify them (location or other
>properties) and so need to know what element is clicked on.
>
>-Randy
>
>
>---------------------------
>Snippet of code to get info about object clicked on:
>
> public void registerListeners() {
> Element maindoc = (Element) document.getDocumentElement();
> EventTarget doctarg = (EventTarget) maindoc;
> doctarg.addEventListener("click", new OnMouseClick(), false);
> }
>
>/** Prints out some info about what was clicked on */
> public class OnMouseClick implements EventListener {
> public void handleEvent(Event evt) {
> int mx, my;
> int sx, sy;
> Element svgRoot = document.getDocumentElement();
> String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
>
> MouseEvent mevt = (MouseEvent) evt;
> mx = mevt.getClientX();
> my = mevt.getClientY();
> sx = mevt.getScreenX();
> sy = mevt.getScreenY();
>
> SVGElement targ = (SVGElement) mevt.getTarget();
>
> System.out.println(" Mouse X:" + mx + " Y: " + my);
> System.out.println(" in screen coordinates - x: " + sx + "
>y: " + sy);
> System.out.println(" Type of event: " + mevt.getType());
> System.out.println(" getTarget: " + mevt.getTarget());
> System.out.println(" getCurrentTarget: " +
>mevt.getCurrentTarget());
> System.out.println(" Element id = " + targ.getId());
>
>
> if (targ instanceof
>org.apache.batik.dom.svg.SVGOMTextElement) {
> double maxX, maxY, minX, minY;
> int rx, ry, rw, rh;
>
> SVGOMTextElement ttarg = (SVGOMTextElement) targ;
> SVGRect rectsiz = new AnSVGRect();
>
> System.out.println("HIT SOME TEXT");
> NodeList nlist = targ.getChildNodes();
> System.out.println(" text node length: " +
>nlist.getLength());
> System.out.println(" text node item: " + " ele: " +
>nlist.item(1));
> // ....etc.
>
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