/**
* Creates a <tt>GraphicsNode</tt> according to the specified parameters.
*
* @param ctx the bridge context to use
* @param e the element that describes the graphics node to build
* @return a graphics node that represents the specified element
*/
public GraphicsNode createGraphicsNode(BridgeContext ctx, Element e) {
// 'requiredFeatures', 'requiredExtensions' and 'systemLanguage'
if (!SVGUtilities.matchUserAgent(e, ctx.getUserAgent())) {
return null;
}
CompositeGraphicsNode cgn = new CompositeGraphicsNode();
// 'transform'
String s = e.getAttributeNS(null, SVG_TRANSFORM_ATTRIBUTE);
if (s.length() != 0) {
cgn.setTransform(SVGUtilities.convertTransform(e, SVG_TRANSFORM_ATTRIBUTE, s, ctx));
}
// 'visibility'
cgn.setVisible(CSSUtilities.convertVisibility(e));
// 'text-rendering' and 'color-rendering'
RenderingHints hints = null;
hints = CSSUtilities.convertColorRendering(e, hints);
hints = CSSUtilities.convertTextRendering(e, hints);
if (hints != null) {
cgn.setRenderingHints(hints);
}
// first child holds the flow region nodes
CompositeGraphicsNode cgn2 = new CompositeGraphicsNode();
cgn.add(cgn2);
// second child is the text node
FlowTextNode tn = (FlowTextNode) instantiateGraphicsNode();
tn.setLocation(getLocation(ctx, e));
// specify the text painter to use
if (ctx.getTextPainter() != null) {
tn.setTextPainter(ctx.getTextPainter());
}
textNode = tn;
cgn.add(tn);
associateSVGContext(ctx, e, cgn);
// traverse the children to add SVGContext
Node child = getFirstChild(e);
while (child != null) {
if (child.getNodeType() == Node.ELEMENT_NODE) {
addContextToChild(ctx, (Element) child);
}
child = getNextSibling(child);
}
return cgn;
}
/**
* Creates a <code>Paint</code> according to the specified parameters.
*
* @param ctx the bridge context to use
* @param paintElement the element that defines a Paint
* @param paintedElement the element referencing the paint
* @param paintedNode the graphics node on which the Paint will be applied
* @param opacity the opacity of the Paint to create
*/
public Paint createPaint(
BridgeContext ctx,
Element paintElement,
Element paintedElement,
GraphicsNode paintedNode,
float opacity) {
Element clrDef = null;
for (Node n = paintElement.getFirstChild(); n != null; n = n.getNextSibling()) {
if ((n.getNodeType() != Node.ELEMENT_NODE)) continue;
Element ref = (Element) n;
if ( // (ref instanceof SVGTests) &&
SVGUtilities.matchUserAgent(ref, ctx.getUserAgent())) {
clrDef = ref;
break;
}
}
if (clrDef == null) return Color.black;
Bridge bridge = ctx.getBridge(clrDef);
if (bridge == null || !(bridge instanceof PaintBridge)) return Color.black;
return ((PaintBridge) bridge).createPaint(ctx, clrDef, paintedElement, paintedNode, opacity);
}
/** Fills the given AttributedStringBuffer. */
protected void fillAttributedStringBuffer(
BridgeContext ctx,
Element element,
boolean top,
Integer bidiLevel,
Map initialAttributes,
AttributedStringBuffer asb,
List lnLocs) {
// 'requiredFeatures', 'requiredExtensions', 'systemLanguage' &
// 'display="none".
if ((!SVGUtilities.matchUserAgent(element, ctx.getUserAgent()))
|| (!CSSUtilities.convertDisplay(element))) {
return;
}
String s = XMLSupport.getXMLSpace(element);
boolean preserve = s.equals(SVG_PRESERVE_VALUE);
boolean prevEndsWithSpace;
Element nodeElement = element;
int elementStartChar = asb.length();
if (top) {
endLimit = startLen = asb.length();
}
if (preserve) {
endLimit = startLen;
}
Map map = initialAttributes == null ? new HashMap() : new HashMap(initialAttributes);
initialAttributes = getAttributeMap(ctx, element, null, bidiLevel, map);
Object o = map.get(TextAttribute.BIDI_EMBEDDING);
Integer subBidiLevel = bidiLevel;
if (o != null) {
subBidiLevel = (Integer) o;
}
int lineBreak = -1;
if (lnLocs.size() != 0) {
lineBreak = ((Integer) lnLocs.get(lnLocs.size() - 1)).intValue();
}
for (Node n = getFirstChild(element); n != null; n = getNextSibling(n)) {
if (preserve) {
prevEndsWithSpace = false;
} else {
int len = asb.length();
if (len == startLen) {
prevEndsWithSpace = true;
} else {
prevEndsWithSpace = (asb.getLastChar() == ' ');
int idx = lnLocs.size() - 1;
if (!prevEndsWithSpace && (idx >= 0)) {
Integer i = (Integer) lnLocs.get(idx);
if (i.intValue() == len) {
prevEndsWithSpace = true;
}
}
}
}
switch (n.getNodeType()) {
case Node.ELEMENT_NODE:
// System.out.println("Element: " + n);
if (!SVG_NAMESPACE_URI.equals(n.getNamespaceURI())) break;
nodeElement = (Element) n;
String ln = n.getLocalName();
if (ln.equals(SVG12Constants.SVG_FLOW_LINE_TAG)) {
int before = asb.length();
fillAttributedStringBuffer(
ctx, nodeElement, false, subBidiLevel, initialAttributes, asb, lnLocs);
// System.out.println("Line: " + asb.length() +
// " - '" + asb + "'");
lineBreak = asb.length();
lnLocs.add(new Integer(lineBreak));
if (before != lineBreak) {
initialAttributes = null;
}
} else if (ln.equals(SVG12Constants.SVG_FLOW_SPAN_TAG)
|| ln.equals(SVG12Constants.SVG_ALT_GLYPH_TAG)) {
int before = asb.length();
fillAttributedStringBuffer(
ctx, nodeElement, false, subBidiLevel, initialAttributes, asb, lnLocs);
if (asb.length() != before) {
initialAttributes = null;
}
} else if (ln.equals(SVG_A_TAG)) {
if (ctx.isInteractive()) {
NodeEventTarget target = (NodeEventTarget) nodeElement;
UserAgent ua = ctx.getUserAgent();
SVGAElementBridge.CursorHolder ch;
ch = new SVGAElementBridge.CursorHolder(CursorManager.DEFAULT_CURSOR);
target.addEventListenerNS(
XMLConstants.XML_EVENTS_NAMESPACE_URI,
SVG_EVENT_CLICK,
new SVGAElementBridge.AnchorListener(ua, ch),
false,
null);
target.addEventListenerNS(
XMLConstants.XML_EVENTS_NAMESPACE_URI,
SVG_EVENT_MOUSEOVER,
new SVGAElementBridge.CursorMouseOverListener(ua, ch),
false,
null);
target.addEventListenerNS(
XMLConstants.XML_EVENTS_NAMESPACE_URI,
SVG_EVENT_MOUSEOUT,
new SVGAElementBridge.CursorMouseOutListener(ua, ch),
false,
null);
}
int before = asb.length();
fillAttributedStringBuffer(
ctx, nodeElement, false, subBidiLevel, initialAttributes, asb, lnLocs);
if (asb.length() != before) {
initialAttributes = null;
}
} else if (ln.equals(SVG_TREF_TAG)) {
String uriStr = XLinkSupport.getXLinkHref((Element) n);
Element ref = ctx.getReferencedElement((Element) n, uriStr);
s = TextUtilities.getElementContent(ref);
s = normalizeString(s, preserve, prevEndsWithSpace);
if (s.length() != 0) {
int trefStart = asb.length();
Map m = new HashMap();
getAttributeMap(ctx, nodeElement, null, bidiLevel, m);
asb.append(s, m);
int trefEnd = asb.length() - 1;
TextPaintInfo tpi;
tpi = (TextPaintInfo) elemTPI.get(nodeElement);
tpi.startChar = trefStart;
tpi.endChar = trefEnd;
}
}
break;
case Node.TEXT_NODE:
case Node.CDATA_SECTION_NODE:
s = n.getNodeValue();
s = normalizeString(s, preserve, prevEndsWithSpace);
if (s.length() != 0) {
asb.append(s, map);
if (preserve) {
endLimit = asb.length();
}
initialAttributes = null;
}
}
}
if (top) {
boolean strippedSome = false;
while ((endLimit < asb.length()) && (asb.getLastChar() == ' ')) {
int idx = lnLocs.size() - 1;
int len = asb.length();
if (idx >= 0) {
Integer i = (Integer) lnLocs.get(idx);
if (i.intValue() >= len) {
i = new Integer(len - 1);
lnLocs.set(idx, i);
idx--;
while (idx >= 0) {
i = (Integer) lnLocs.get(idx);
if (i.intValue() < len - 1) break;
lnLocs.remove(idx);
idx--;
}
}
}
asb.stripLast();
strippedSome = true;
}
if (strippedSome) {
Iterator iter = elemTPI.values().iterator();
while (iter.hasNext()) {
TextPaintInfo tpi = (TextPaintInfo) iter.next();
if (tpi.endChar >= asb.length()) {
tpi.endChar = asb.length() - 1;
if (tpi.startChar > tpi.endChar) tpi.startChar = tpi.endChar;
}
}
}
}
int elementEndChar = asb.length() - 1;
TextPaintInfo tpi = (TextPaintInfo) elemTPI.get(element);
tpi.startChar = elementStartChar;
tpi.endChar = elementEndChar;
}
