/**
* Builds using the specified BridgeContext and element, the specified graphics node.
*
* @param ctx the bridge context to use
* @param e the element that describes the graphics node to build
* @param node the graphics node to build
*/
public void buildGraphicsNode(BridgeContext ctx, Element e, GraphicsNode node) {
CompositeGraphicsNode cgn = (CompositeGraphicsNode) node;
// build flowRegion shapes
boolean isStatic = !ctx.isDynamic();
if (isStatic) {
flowRegionNodes = new HashMap();
} else {
regionChangeListener = new RegionChangeListener();
}
CompositeGraphicsNode cgn2 = (CompositeGraphicsNode) cgn.get(0);
GVTBuilder builder = ctx.getGVTBuilder();
for (Node n = getFirstChild(e); n != null; n = getNextSibling(n)) {
if (n instanceof SVGOMFlowRegionElement) {
for (Node m = getFirstChild(n); m != null; m = getNextSibling(m)) {
if (m.getNodeType() != Node.ELEMENT_NODE) {
continue;
}
GraphicsNode gn = builder.build(ctx, (Element) m);
if (gn != null) {
cgn2.add(gn);
if (isStatic) {
flowRegionNodes.put(m, gn);
}
}
}
if (!isStatic) {
AbstractNode an = (AbstractNode) n;
XBLEventSupport es = (XBLEventSupport) an.initializeEventSupport();
es.addImplementationEventListenerNS(
SVG_NAMESPACE_URI, "shapechange", regionChangeListener, false);
}
}
}
// build text node
GraphicsNode tn = (GraphicsNode) cgn.get(1);
super.buildGraphicsNode(ctx, e, tn);
// Drop references once static build is completed.
flowRegionNodes = null;
}
/** Tries to build a GVTFontFamily from a URL reference */
protected GVTFontFamily getFontFamily(BridgeContext ctx, ParsedURL purl) {
String purlStr = purl.toString();
Element e = getBaseElement(ctx);
SVGDocument svgDoc = (SVGDocument) e.getOwnerDocument();
String docURL = svgDoc.getURL();
ParsedURL pDocURL = null;
if (docURL != null) pDocURL = new ParsedURL(docURL);
// try to load an SVG document
String baseURI = AbstractNode.getBaseURI(e);
purl = new ParsedURL(baseURI, purlStr);
UserAgent userAgent = ctx.getUserAgent();
try {
userAgent.checkLoadExternalResource(purl, pDocURL);
} catch (SecurityException ex) {
// Can't load font - Security violation.
// We should not throw the error that is for certain, just
// move down the font list, but do we display the error or not???
// I'll vote yes just because it is a security exception (other
// exceptions like font not available etc I would skip).
userAgent.displayError(ex);
return null;
}
if (purl.getRef() != null) {
// Reference must be to a SVGFont.
Element ref = ctx.getReferencedElement(e, purlStr);
if (!ref.getNamespaceURI().equals(SVG_NAMESPACE_URI)
|| !ref.getLocalName().equals(SVG_FONT_TAG)) {
return null;
}
SVGDocument doc = (SVGDocument) e.getOwnerDocument();
SVGDocument rdoc = (SVGDocument) ref.getOwnerDocument();
Element fontElt = ref;
if (doc != rdoc) {
fontElt = (Element) doc.importNode(ref, true);
String base = AbstractNode.getBaseURI(ref);
Element g = doc.createElementNS(SVG_NAMESPACE_URI, SVG_G_TAG);
g.appendChild(fontElt);
g.setAttributeNS(XMLConstants.XML_NAMESPACE_URI, "xml:base", base);
CSSUtilities.computeStyleAndURIs(ref, fontElt, purlStr);
}
// Search for a font-face element
Element fontFaceElt = null;
for (Node n = fontElt.getFirstChild(); n != null; n = n.getNextSibling()) {
if ((n.getNodeType() == Node.ELEMENT_NODE)
&& n.getNamespaceURI().equals(SVG_NAMESPACE_URI)
&& n.getLocalName().equals(SVG_FONT_FACE_TAG)) {
fontFaceElt = (Element) n;
break;
}
}
// todo : if the above loop fails to find a fontFaceElt, a null is passed to createFontFace()
SVGFontFaceElementBridge fontFaceBridge;
fontFaceBridge =
(SVGFontFaceElementBridge) ctx.getBridge(SVG_NAMESPACE_URI, SVG_FONT_FACE_TAG);
GVTFontFace gff = fontFaceBridge.createFontFace(ctx, fontFaceElt);
return new SVGFontFamily(gff, fontElt, ctx);
}
// Must be a reference to a 'Web Font'.
try {
return ctx.getFontFamilyResolver().loadFont(purl.openStream(), this);
} catch (Exception ex) {
}
return null;
}
