Hi, I've got a problem with the Batik DOM implementation. When I add an
xlink:href attribute to my document, the xlink namespace is omitted,
making the attribute invalid. I am using the following code:
SVGDOMImplementation impl = (SVGDOMImplementation)
SVGDOMImplementation.getDOMImplementation();
AbstractDocument doc = (AbstractDocument)
impl.createDocument(SVGConstants.SVG_NAMESPACE_URI,
SVGConstants.SVG_SVG_TAG, null);
Element useElement = impl.createElementNS(doc,
SVGConstants.SVG_NAMESPACE_URI, SVGConstants.SVG_USE_TAG);
doc.getDocumentElement().appendChild(useElement);
XLinkSupport.setXLinkHref( useElement, "somefile.svg#someid" );
StringWriter writer = new StringWriter();
try {
DOMUtilities.writeDocument(doc, writer);
System.out.println( writer.toString() );
} catch (IOException e) {
e.printStackTrace();
}
Running the above code with Batik 1.6 or 1.7 produces the following
output:
<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns:xlink="http://www.w3.org/1999/xlink";
xmlns="http://www.w3.org/2000/svg"; contentScriptType="text/ecmascript"
zoomAndPan="magnify" contentStyleType="text/css"
preserveAspectRatio="xMidYMid meet" version="1.0">
<use xlink:actuate="onLoad" xlink:type="simple" xlink:show="embed"
xmlns:xlink="http://www.w3.org/1999/xlink"; href="somefile.svg#someid"/>
</svg>
Not only is the xlink namespace added a second time (it was already
present in the root element), but the namespace prefix is missing in the
href attribute. Since attributes, unlike elements, have no default
namespace, the attribute is not a valid xlink:href attribute any more.
When loading the serialized document, Batik correctly throws an error:
The attribute "xlink:href" of the element <use> is required
The funny thing is, when I just add the attribute and render the DOM
tree without serializing it, the reference is accepted, GVT nodes are
created and the referenced element shows up on the screen. I therefore
suspect that some error occurs during serialization.
Am I maybe missing something? What would be the correct way to add an
xlink:href reference, or a use element with default attributes? What
method is used to create the other xlink attributes that are lined up so
nicely?
Thanks for any insights.
Regards,
Gerrit
--
http://www.fastmail.fm - Faster than the air-speed velocity of an
unladen european swallow
---------------------------------------------------------------------
To unsubscribe, e-mail: batik-users-unsubscr...@xmlgraphics.apache.org
For additional commands, e-mail: batik-users-h...@xmlgraphics.apache.org
