OK, long time getting to it, but I'm finally messing with this
SVGStylable interface. When I take an SVG element and try to cast it to
an SVGStylable, everything works. It seems that calling getStyle()
results in an NPE if no style attribute currently exists. In some
cases, it breaks even if it does exist!
I try to create a "layer" in my document and default it to being
visible:
element = svgDocument.createElementNS(SVGConstants.SVG_NAMESPACE_URI,
SVGConstants.SVG_G_TAG);
element.setAttribute(Constants.PNTR_EVTS_ATTR,
SVGConstants.SVG_NONE_VALUE);
SVGStylable stylable = (SVGStylable) element;
// This causes an NPE!
stylable.getStyle().setProperty("visibility", "visible", "");
// So I try this instead...
element.setAttribute(Constants.STYLE_ATTR,Constants.VISIBILITY_ATTR + ":
" + Constants.VISIBLE_VALUE);
// Which works until I try to check its visibility elsewhere:
public static boolean isVisible(Element element) {
SVGStylable stylable = (SVGStylable) element;
// NPE here again.
String visible =
stylable.getStyle().getPropertyValue(Constants.VISIBILITY_ATTR);
return visible.equalsIgnoreCase(Constants.VISIBLE_VALUE);
}
Any help?
Michael Bishop
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Thursday, December 22, 2005 7:47 PM
To: [email protected]
Subject: RE: Seemingly simple question...
Hi Michael,
"Bishop, Michael W. CONTR J9C880" <[EMAIL PROTECTED]> wrote on
12/22/2005 04:13:34 PM:
> OK, well in that case, working with CSS won't be so bad. Now on the
SAC
> page, they have their own implementation, and they also say that Batik
> has an implementation. What kind of object is "e" where you can call
> getStyle() on it? Do you use the Batik 1.2 SAC or the standalone SAC
> 1.3?
'e' is any 'graphics' SVG Element from the DOM.
e = document.getElementById("myG");
You will want to cast it to a 'org.w3c.dom.svg.SVGStylable'
interface.
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