/** Turns a List<CubicCurve2D.Float> into a SVG Element representing a sketch of that spline. */
Element splineToSketch(SVGDocument document, List<CubicCurve2D.Float> spline) {
String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
// <g> is an SVG group
// TODO: add a random(ish) rotation to the group
Element group = document.createElementNS(svgNS, "g");
// For each curve in the path, draw along it using a "brush". In
// our case the brush is a simple circle, but this could be changed
// to something more advanced.
for (CubicCurve2D.Float curve : spline) {
// TODO: magic number & step in loop guard
for (double i = 0.0; i <= 1.0; i += 0.01) {
Point2D result = evalParametric(curve, i);
// Add random jitter at some random positive or negative
// distance along the unit normal to the tangent of the
// curve
Point2D n = vectorUnitNormal(evalParametricTangent(curve, i));
float dx = (float) ((Math.random() - 0.5) * n.getX());
float dy = (float) ((Math.random() - 0.5) * n.getY());
Element brush = document.createElementNS(svgNS, "circle");
brush.setAttribute("cx", Double.toString(result.getX() + dx));
brush.setAttribute("cy", Double.toString(result.getY() + dy));
// TODO: magic number for circle radius
brush.setAttribute("r", Double.toString(1.0));
brush.setAttribute("fill", "green");
brush.setAttributeNS(null, "z-index", Integer.toString(zOrder.CONTOUR.ordinal()));
group.appendChild(brush);
}
}
return group;
}
protected void updateSvgDocument() {
getBrowserExtension().clearLocalHyperlinkCache();
getBrowserExtension().clearResourceCache();
SVGDocument doc = getSvgDocument();
if (doc == null) {
getUiField().setText("");
return;
}
try {
// set the dimensions of the svg element to the size of the browser field
Rectangle browserBounds = getAbsoluteBrowserBounds();
doc.getRootElement()
.setAttribute(SVGConstants.SVG_HEIGHT_ATTRIBUTE, browserBounds.height + "px");
doc.getRootElement()
.setAttribute(SVGConstants.SVG_WIDTH_ATTRIBUTE, browserBounds.width + "px");
// get the svg code as string and rewrite the local links
String svgText =
getBrowserExtension().adaptLocalHyperlinks(getSvgContentFromDocument(doc), 2);
// bugfix for SVG fields to ensure all context menus are closed when the user clicks into the
// svg field
String contextMenuHideScript =
"parent.parent.org.eclipse.rwt.MenuManager.getInstance().update(null, 'mousedown');";
// bugfix so that the svg field inherits the color of the parent container. otherwise it is
// always defined white.
String backgroundColorInheritScript = null;
if (getScoutObject().getBackgroundColor() == null) {
backgroundColorInheritScript =
"var iframes = parent.document.getElementsByTagName('iframe');"
+ "for(var i=0;i<iframes.length;i++) {"
+ " var field=iframes[i].parentNode;"
+ " var color=field.style.backgroundColor;"
+ " if(color && color.toLowerCase() === 'rgb(255, 255, 255)') "
+ " field.style.backgroundColor='';"
+ "}";
} else {
backgroundColorInheritScript = "";
}
// set the html content to the browser
getUiField()
.setText(
"<html><body width=\"100%\" height=\"100%\" onload=\""
+ backgroundColorInheritScript
+ "\" onclick=\""
+ contextMenuHideScript
+ "\">"
+ svgText
+ "</body></html>");
} catch (Exception e) {
LOG.error("preparing svg browser content", e);
getUiField().setText("");
}
}
public Document(InputStream stream) throws IOException {
f = new SAXSVGDocumentFactory(XMLResourceDescriptor.getXMLParserClassName());
doc = f.createSVGDocument(null, stream);
// Boot the CSS engine
userAgent = new UserAgentAdapter();
loader = new DocumentLoader(userAgent);
ctx = new BridgeContext(userAgent, loader);
ctx.setDynamicState(BridgeContext.DYNAMIC);
builder = new GVTBuilder();
rootGN = builder.build(ctx, doc);
svgRoot = doc.getRootElement();
vcss = (ViewCSS) doc.getDocumentElement();
}
public void handleEvent(Event evt) {
String cx = String.valueOf(Math.floor(Math.random() * 1200));
String cy = String.valueOf(Math.floor(Math.random() * 400));
String r = String.valueOf(Math.floor(Math.random() * 100));
SVGCircleElement circle = (SVGCircleElement) doc.createElementNS(svgNS, "circle");
circle.setAttribute("cx", cx);
circle.setAttribute("cy", cy);
circle.setAttribute("r", r);
circle.setAttribute("fill", "red");
circle.setAttribute("stroke", "blue");
circle.setAttribute("stroke-width", "10");
doc.getDocumentElement().appendChild(circle);
System.out.println("Added circle at (" + cx + ", " + cy + ")");
}
private Element getLinkArrows(SVGDocument doc) {
Element group = doc.createElementNS("http://www.w3.org/2000/svg", "g");
if (links != null && !links.isEmpty()) {
Set linksSet = links.entrySet();
Iterator linksIterator = linksSet.iterator();
while (linksIterator.hasNext()) {
Map.Entry<String, Link> link = (Map.Entry<String, Link>) linksIterator.next();
ActivityInterface startActivity = link.getValue().getSource();
ActivityInterface endActivity = link.getValue().getTarget();
String linkName = link.getKey();
// Element pathGroup = doc.createElementNS("http://www.w3.org/2000/svg", "g");
// group.setAttributeNS("xlink", "title", linkName);
group.appendChild(
drawLink(
doc,
startActivity.getExitArrowCoords().getXLeft(),
startActivity.getExitArrowCoords().getYTop(),
endActivity.getEntryArrowCoords().getXLeft(),
endActivity.getEntryArrowCoords().getYTop(),
startActivity.getStartIconWidth(),
link.getKey(),
linkName));
// group.appendChild(pathGroup);
}
}
return group;
}
protected Element getArrows(SVGDocument doc) {
Element group = doc.createElementNS("http://www.w3.org/2000/svg", "g");
if (subActivities != null) {
ActivityInterface startActivity = subActivities.get(0);
ActivityInterface endActivity = subActivities.get(subActivities.size() - 1);
startActivity = endActivity; // Should ignore event/fault handlers
org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates exitCoords = getExitArrowCoords();
group.appendChild(
getArrowDefinition(
doc,
exitCoords.getXLeft(),
exitCoords.getYTop(),
startActivity.getEntryArrowCoords().getXLeft(),
startActivity.getEntryArrowCoords().getYTop(),
name,
startActivity,
endActivity));
org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates entryCoords = getEndEntryArrowCoords();
group.appendChild(
getArrowDefinition(
doc,
endActivity.getExitArrowCoords().getXLeft(),
endActivity.getExitArrowCoords().getYTop(),
entryCoords.getXLeft(),
entryCoords.getYTop(),
name,
startActivity,
endActivity));
}
return group;
}
public void setDocument(SVGDocument doc) {
Element el = doc.getElementById("draft");
prepare(el.getChildNodes());
String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
// we parse the viewBox
String s = doc.getDocumentElement().getAttribute("viewBox");
String[] data = s.split("\\s+");
// we create a invisible rectangle for the capturing the mouse events
double y = Double.parseDouble(data[1]);
double width = Double.parseDouble(data[2]);
fontSize = width / 5;
this.labelID = doc.createElementNS(svgNS, "text");
this.labelID.setAttributeNS(null, "x", data[0]);
this.labelID.setAttributeNS(null, "y", "" + (y + fontSize));
this.labelID.setAttributeNS(null, "style", "stroke-width:12pt");
this.labelID.setAttributeNS(null, "visibility", "hidden");
this.text = doc.createTextNode("Handle");
this.labelID.appendChild(text);
doc.getDocumentElement().insertBefore(this.labelID, doc.getDocumentElement().getFirstChild());
}
@Override
public SVGDocument toSVG(ConcreteDiagram cd) {
/*
* Use a Plain drawer to generate an SVG Document, then
* "post-process" any SVG circles in the document to convert them
* into "sketches".
*/
SVGDocument document = (new PlainCircleSVGDrawer()).toSVG(cd);
// return document;
// find each circle in the document and turn it into a sketch. We
// need to keep track of the circles and their eventual replacements
// as each circle is replaced by 10's of smaller circles, thus the
// DOM updates and we get the 10's of circles in our NodeList circles.
NodeList circles = document.getElementsByTagName("circle");
List<Node> replaceable = nodeListToList(circles);
for (Node n : replaceable) {
Node circleAsSketch = circleToSketch(document, (SVGCircleElement) n);
n.getParentNode().replaceChild(circleAsSketch, n);
}
return document;
}
public static void main(String[] args) throws Exception {
// Create an SVG document.
DOMImplementation impl = SVGDOMImplementation.getDOMImplementation();
String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
SVGDocument doc = (SVGDocument) impl.createDocument(svgNS, "svg", null);
// Create a converter for this document.
SVGGraphics2D g = new SVGGraphics2D(doc);
// Do some drawing.
Shape circle = new Ellipse2D.Double(0, 0, 50, 50);
g.setPaint(Color.red);
g.fill(circle);
g.translate(60, 0);
g.setPaint(Color.green);
g.fill(circle);
g.translate(60, 0);
g.setPaint(Color.blue);
g.fill(circle);
g.setSVGCanvasSize(new Dimension(180, 50));
// Populate the document root with the generated SVG content.
Element root = doc.getDocumentElement();
g.getRoot(root);
Writer out = new OutputStreamWriter(System.out, "UTF-8");
g.stream(out, true);
// Display the document.
JSVGCanvas canvas = new JSVGCanvas();
JFrame f = new JFrame();
f.getContentPane().add(canvas);
canvas.setSVGDocument(doc);
f.pack();
f.setVisible(true);
}
protected static String getSvgContentFromDocument(SVGDocument doc) throws ProcessingException {
try {
ByteArrayOutputStream out = new ByteArrayOutputStream();
DOMSource domSource = new DOMSource(doc.getRootElement());
StreamResult streamResult = new StreamResult(out);
Transformer t = TransformerFactory.newInstance().newTransformer();
t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
t.setOutputProperty(OutputKeys.ENCODING, DOCUMENT_ENCODING);
t.transform(domSource, streamResult);
out.close();
return new String(out.toByteArray(), DOCUMENT_ENCODING);
} catch (Exception e) {
throw new ProcessingException("Writing SVG Failed", e);
}
}
protected Element getDefs(SVGDocument doc) {
Element defs = doc.createElementNS("http://www.w3.org/2000/svg", "defs");
defs.setAttributeNS(null, "id", "defs4");
Element marker1 = doc.createElementNS("http://www.w3.org/2000/svg", "marker");
marker1.setAttributeNS(null, "refX", "0");
marker1.setAttributeNS(null, "refY", "0");
marker1.setAttributeNS(null, "orient", "auto");
marker1.setAttributeNS(null, "id", "Arrow1Lend");
marker1.setAttributeNS(null, "style", "overflow:visible");
Element path1 = doc.createElementNS("http://www.w3.org/2000/svg", "path");
path1.setAttributeNS(null, "d", "M 0,0 L 5,-5 L -12.5,0 L 5,5 L 0,0 z");
path1.setAttributeNS(null, "transform", "matrix(-0.8,0,0,-0.8,-10,0)");
path1.setAttributeNS(null, "id", "path3166");
path1.setAttributeNS(
null, "style", "fill-rule:evenodd;stroke:#000000;stroke-width:1pt;marker-start:none");
Element marker2 = doc.createElementNS("http://www.w3.org/2000/svg", "marker");
marker2.setAttributeNS(null, "refX", "0");
marker2.setAttributeNS(null, "refY", "0");
marker2.setAttributeNS(null, "orient", "auto");
marker2.setAttributeNS(null, "id", "Arrow1Mend");
marker2.setAttributeNS(null, "style", "overflow:visible");
Element path2 = doc.createElementNS("http://www.w3.org/2000/svg", "path");
path2.setAttributeNS(null, "d", "M 0,0 L 5,-5 L -12.5,0 L 5,5 L 0,0 z");
path2.setAttributeNS(null, "transform", "matrix(-0.8,0,0,-0.8,-10,0)");
path2.setAttributeNS(null, "id", "path3193");
path2.setAttributeNS(
null, "style", "fill-rule:evenodd;stroke:#000000;stroke-width:1pt;marker-start:none");
Element linkMarker = doc.createElementNS("http://www.w3.org/2000/svg", "marker");
linkMarker.setAttributeNS(null, "refX", "0");
linkMarker.setAttributeNS(null, "refY", "0");
linkMarker.setAttributeNS(null, "orient", "auto");
linkMarker.setAttributeNS(null, "id", "LinkArrow");
linkMarker.setAttributeNS(null, "style", "overflow:visible");
Element linkPath = doc.createElementNS("http://www.w3.org/2000/svg", "path");
// linkPath.setAttributeNS(null, "d", "M 0,0 L 2.5,-7.5 L -1,0 L 2.5,7.5 L 0,0 z");
linkPath.setAttributeNS(null, "d", "M -11.5,0 L -7,-7.5 L -12.5,0 L -7,7.5 L -11.5,0 z");
linkPath.setAttributeNS(null, "transform", "matrix(-0.8,0,0,-0.8,-10,0)");
linkPath.setAttributeNS(null, "id", "linkPath");
linkPath.setAttributeNS(
null, "style", "fill-rule:evenodd;stroke:#000000;stroke-width:1pt;marker-start:none");
Element linearGradient = doc.createElementNS("http://www.w3.org/2000/svg", "linearGradient");
linearGradient.setAttributeNS(null, "id", "orange_red");
linearGradient.setAttributeNS(null, "x1", "0%");
linearGradient.setAttributeNS(null, "y1", "0%");
linearGradient.setAttributeNS(null, "x2", "0%");
linearGradient.setAttributeNS(null, "y2", "100%");
Element stop1 = doc.createElementNS("http://www.w3.org/2000/svg", "stop");
stop1.setAttributeNS(null, "offset", "0%");
stop1.setAttributeNS(null, "style", "stop-color:rgb(255,255,255);stop-opacity:1");
Element stop2 =
doc.createElementNS(
"http://www.w3.org/2000/svg", "stop"); // these should be taken from the svg factory
stop2.setAttributeNS(null, "offset", "100%");
stop2.setAttributeNS(
null,
"style",
"stop-color:rgb(0,0,255);stop-opacity:1"); // these should be taken from the svg factory
marker1.appendChild(path1);
marker2.appendChild(path2);
linkMarker.appendChild(linkPath);
defs.appendChild(marker1);
defs.appendChild(marker2);
defs.appendChild(linkMarker);
linearGradient.appendChild(stop1);
linearGradient.appendChild(stop2);
defs.appendChild(linearGradient);
return defs;
}
/**
* Draws a concreteDiagram as an SVG.
*
* <p>This approach is wholly declarative. It currently knows nothing about the on screen
* rendering of the diagram. To make decisions based on the on screen rendering (such as better
* label placement) we will, in future, have to build a GVT (from the Batik library) of the
* SVGDocument.
*
* @returns An SVGDocument DOM structure representing the SVG.
*/
@Override
public SVGDocument toSVG(ConcreteDiagram cd) {
// Get a DOMImplementation.
DOMImplementation domImpl = SVGDOMImplementation.getDOMImplementation();
// Create an instance of org.w3c.dom.Document.
String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
SVGDocument document = (SVGDocument) domImpl.createDocument(svgNS, "svg", null);
// Get the root element (the 'svg' element).
Element svgRoot = document.getDocumentElement();
// Set the width and height attributes on the root 'svg' element.
svgRoot.setAttributeNS(null, "width", Integer.toString(cd.getSize()));
svgRoot.setAttributeNS(null, "height", Integer.toString(cd.getSize()));
// Draw the shaded zones
for (ConcreteZone z : cd.getShadedZones()) {
Element path = document.createElementNS(svgNS, "path");
path.setAttributeNS(null, "d", toSVGPath(z.getShape(cd.getBox())));
path.setAttributeNS(null, "fill", "#cccccc"); // grey
path.setAttributeNS(null, "z-index", Integer.toString(zOrder.SHADING.ordinal()));
svgRoot.appendChild(path);
}
// TODO: Concrete* should return themselves as DocumentFragments
for (CircleContour c : cd.getCircles()) {
// Draw the circle
Element circle = document.createElementNS(svgNS, "circle");
circle.setAttributeNS(null, "cx", Double.toString(c.get_cx()));
circle.setAttributeNS(null, "cy", Double.toString(c.get_cy()));
circle.setAttributeNS(null, "r", Double.toString(c.get_radius()));
circle.setAttributeNS(null, "z-index", Integer.toString(zOrder.CONTOUR.ordinal()));
// Not pretty, but it works.
Color strokeColor = c.color();
circle.setAttributeNS(
null, "stroke", (null == strokeColor) ? "black" : "#" + toHexString(c.color()));
circle.setAttributeNS(null, "stroke-width", "2");
circle.setAttributeNS(null, "fill", "none");
svgRoot.appendChild(circle);
// TODO: Put this text in a path around the circle
// alternatively come up with some better label placement
// algorithm
Element text = document.createElementNS(svgNS, "text");
text.setAttributeNS(null, "x", Double.toString(c.get_cx()));
text.setAttributeNS(null, "y", Double.toString(c.get_cy() + c.get_radius()));
text.setAttributeNS(null, "text-anchor", "middle");
text.setAttributeNS(
null, "fill", (null == strokeColor) ? "black" : "#" + toHexString(c.color()));
text.setAttributeNS(null, "z-index", Integer.toString(zOrder.LABEL.ordinal()));
Text textNode = document.createTextNode(c.ac.getLabel().getLabel());
text.appendChild(textNode);
svgRoot.appendChild(text);
}
for (ConcreteSpider cs : cd.getSpiders()) {
for (ConcreteSpiderFoot f : cs.feet) {
// Draw the foot
Element circle = document.createElementNS(svgNS, "circle");
circle.setAttributeNS(null, "cx", Double.toString(f.getX()));
circle.setAttributeNS(null, "cy", Double.toString(f.getY()));
circle.setAttributeNS(null, "r", Double.toString(ConcreteSpiderFoot.FOOT_RADIUS));
circle.setAttributeNS(null, "z-index", Integer.toString(zOrder.SPIDER.ordinal()));
circle.setAttributeNS(null, "stroke", "black");
circle.setAttributeNS(null, "stroke-width", "2");
circle.setAttributeNS(null, "fill", "black");
svgRoot.appendChild(circle);
}
for (ConcreteSpiderLeg l : cs.legs) {
Element line = document.createElementNS(svgNS, "line");
line.setAttributeNS(null, "x1", Double.toString(l.from.getX()));
line.setAttributeNS(null, "y1", Double.toString(l.from.getY()));
line.setAttributeNS(null, "x2", Double.toString(l.to.getX()));
line.setAttributeNS(null, "y2", Double.toString(l.to.getY()));
line.setAttributeNS(null, "z-index", Integer.toString(zOrder.SPIDER.ordinal()));
line.setAttributeNS(null, "stroke", "black");
line.setAttributeNS(null, "stroke-width", "2");
line.setAttributeNS(null, "fill", "black");
svgRoot.appendChild(line);
}
}
return document;
}
private Element drawLink(
SVGDocument doc,
int startX,
int startY,
int endX,
int endY,
int startIconWidth,
String id,
String linkName) {
Element path = doc.createElementNS("http://www.w3.org/2000/svg", "path");
int firstBend = 20;
if (layoutManager.isVerticalLayout()) {
if (startY < endY) {
path.setAttributeNS(
null,
"d",
"M "
+ startX
+ ","
+ startY
+ " L "
+ startX
+ ","
+ (startY + firstBend)
+ " L "
+ startX
+ ","
+ (startY + firstBend)
+ " L "
+ endX
+ ","
+ (startY + firstBend)
+ " L "
+ endX
+ ","
+ endY); // use constants for these propotions
} else {
if (startX > endX) {
path.setAttributeNS(
null,
"d",
"M "
+ startX
+ ","
+ startY
+ " L "
+ startX
+ ","
+ (startY + firstBend)
+ " L "
+ (startX - (startIconWidth / 2 + firstBend))
+ ","
+ (startY + firstBend)
+ " L "
+ (startX - (startIconWidth / 2 + firstBend))
+ ","
+ (endY - firstBend)
+ " L "
+ endX
+ ","
+ (endY - firstBend)
+ " L "
+ endX
+ ","
+ endY); // use constants for these propotions
} else {
path.setAttributeNS(
null,
"d",
"M "
+ startX
+ ","
+ startY
+ " L "
+ startX
+ ","
+ (startY + firstBend)
+ " L "
+ (startX + (startIconWidth / 2 + firstBend))
+ ","
+ (startY + firstBend)
+ " L "
+ (startX + (startIconWidth / 2 + firstBend))
+ ","
+ (endY - firstBend)
+ " L "
+ endX
+ ","
+ (endY - firstBend)
+ " L "
+ endX
+ ","
+ endY);
}
}
} else {
path.setAttributeNS(
null,
"d",
"M "
+ startX
+ ","
+ startY
+ " L "
+ ((startX + 1 * endX) / 2)
+ ","
+ startY
+ " L "
+ ((startX + 1 * endX) / 2)
+ ","
+ endY
+ " L "
+ endX
+ ","
+ endY); // use constants for these propotions
}
path.setAttributeNS(null, "id", id);
path.setAttributeNS(null, "style", getLinkArrowStyle());
path.setAttributeNS("xlink", "title", linkName);
// path.setAttributeNS(null, "style", "opacity:" + getIconOpacity());
// path.setAttributeNS(null, "onmouseover",
// "this.style.opacity=1;this.filters.alpha.opacity=100");
// path.setAttributeNS(null, "onmouseout", "this.style.opacity=" + getIconOpacity() +
// ";this.filters.alpha.opacity=25");
path.setAttributeNS(null, "onmouseover", "this.style.opacity=1;this.filters.alpha.opacity=100");
path.setAttributeNS(
null,
"onmouseout",
"this.style.opacity=" + getIconOpacity(getState()) + ";this.filters.alpha.opacity=100");
// path.setAttributeNS(null, "onload", "this.style.opacity=" + getIconOpacity() +
// ";this.filters.alpha.opacity=100");
// path.setAttributeNS(null, "onmousemove",
// "this.style.opacity=1;this.filters.alpha.opacity=100");
return path;
}
/**
* Default implementation uses the root element of the document associated with BridgeContext.
* This is useful for CSS case.
*/
protected Element getBaseElement(BridgeContext ctx) {
SVGDocument d = (SVGDocument) ctx.getDocument();
return d.getRootElement();
}
/** 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;
}
/** Auxiliary method for dispatchSVGLoad. */
protected void dispatchSVGLoad(Element elt, boolean checkCanRun, String lang) {
for (Node n = elt.getFirstChild(); n != null; n = n.getNextSibling()) {
if (n.getNodeType() == Node.ELEMENT_NODE) {
dispatchSVGLoad((Element) n, checkCanRun, lang);
}
}
DocumentEvent de = (DocumentEvent) elt.getOwnerDocument();
AbstractEvent ev = (AbstractEvent) de.createEvent("SVGEvents");
String type;
if (bridgeContext.isSVG12()) {
type = "load";
} else {
type = "SVGLoad";
}
ev.initEventNS(XMLConstants.XML_EVENTS_NAMESPACE_URI, type, false, false);
NodeEventTarget t = (NodeEventTarget) elt;
final String s = elt.getAttributeNS(null, SVGConstants.SVG_ONLOAD_ATTRIBUTE);
if (s.length() == 0) {
// No script to run so just dispatch the event to DOM
// (For java presumably).
t.dispatchEvent(ev);
return;
}
final Interpreter interp = getInterpreter();
if (interp == null) {
// Can't load interpreter so just dispatch normal event
// to the DOM (for java presumably).
t.dispatchEvent(ev);
return;
}
if (checkCanRun) {
// Check that it is ok to run embeded scripts
checkCompatibleScriptURL(lang, docPURL);
checkCanRun = false; // we only check once for onload handlers
}
DocumentLoader dl = bridgeContext.getDocumentLoader();
SVGDocument d = (SVGDocument) elt.getOwnerDocument();
int line = dl.getLineNumber(elt);
final String desc =
Messages.formatMessage(
EVENT_SCRIPT_DESCRIPTION,
new Object[] {d.getURL(), SVGConstants.SVG_ONLOAD_ATTRIBUTE, new Integer(line)});
EventListener l =
new EventListener() {
public void handleEvent(Event evt) {
try {
Object event;
if (evt instanceof ScriptEventWrapper) {
event = ((ScriptEventWrapper) evt).getEventObject();
} else {
event = evt;
}
interp.bindObject(EVENT_NAME, event);
interp.bindObject(ALTERNATE_EVENT_NAME, event);
interp.evaluate(new StringReader(s), desc);
} catch (IOException io) {
} catch (InterpreterException e) {
handleInterpreterException(e);
}
}
};
t.addEventListenerNS(XMLConstants.XML_EVENTS_NAMESPACE_URI, type, l, false, null);
t.dispatchEvent(ev);
t.removeEventListenerNS(XMLConstants.XML_EVENTS_NAMESPACE_URI, type, l, false);
}
/** Loads the scripts contained in the <script> elements. */
public void loadScripts() {
org.apache.batik.script.Window window = null;
NodeList scripts =
document.getElementsByTagNameNS(
SVGConstants.SVG_NAMESPACE_URI, SVGConstants.SVG_SCRIPT_TAG);
int len = scripts.getLength();
if (len == 0) {
return;
}
for (int i = 0; i < len; i++) {
AbstractElement script = (AbstractElement) scripts.item(i);
String type = script.getAttributeNS(null, SVGConstants.SVG_TYPE_ATTRIBUTE);
if (type.length() == 0) {
type = SVGConstants.SVG_SCRIPT_TYPE_DEFAULT_VALUE;
}
//
// Java code invocation.
//
if (type.equals(SVGConstants.SVG_SCRIPT_TYPE_JAVA)) {
try {
String href = XLinkSupport.getXLinkHref(script);
ParsedURL purl = new ParsedURL(script.getBaseURI(), href);
checkCompatibleScriptURL(type, purl);
DocumentJarClassLoader cll;
URL docURL = null;
try {
docURL = new URL(docPURL.toString());
} catch (MalformedURLException mue) {
/* nothing just let docURL be null */
}
cll = new DocumentJarClassLoader(new URL(purl.toString()), docURL);
// Get the 'Script-Handler' entry in the manifest.
URL url = cll.findResource("META-INF/MANIFEST.MF");
if (url == null) {
continue;
}
Manifest man = new Manifest(url.openStream());
String sh;
sh = man.getMainAttributes().getValue("Script-Handler");
if (sh != null) {
// Run the script handler.
ScriptHandler h;
h = (ScriptHandler) cll.loadClass(sh).newInstance();
if (window == null) {
window = createWindow();
}
h.run(document, window);
}
sh = man.getMainAttributes().getValue("SVG-Handler-Class");
if (sh != null) {
// Run the initializer
EventListenerInitializer initializer;
initializer = (EventListenerInitializer) cll.loadClass(sh).newInstance();
if (window == null) {
window = createWindow();
}
initializer.initializeEventListeners((SVGDocument) document);
}
} catch (Exception e) {
if (userAgent != null) {
userAgent.displayError(e);
}
}
continue;
}
//
// Scripting language invocation.
//
Interpreter interpreter = getInterpreter(type);
if (interpreter == null)
// Can't find interpreter so just skip this script block.
continue;
try {
String href = XLinkSupport.getXLinkHref(script);
String desc = null;
Reader reader = null;
if (href.length() > 0) {
desc = href;
// External script.
ParsedURL purl = new ParsedURL(script.getBaseURI(), href);
checkCompatibleScriptURL(type, purl);
InputStream is = purl.openStream();
String mediaType = purl.getContentTypeMediaType();
String enc = purl.getContentTypeCharset();
if (enc != null) {
try {
reader = new InputStreamReader(is, enc);
} catch (UnsupportedEncodingException uee) {
enc = null;
}
}
if (reader == null) {
if (APPLICATION_ECMASCRIPT.equals(mediaType)) {
// No encoding was specified in the MIME type, so
// infer it according to RFC 4329.
if (purl.hasContentTypeParameter("version")) {
// Future versions of application/ecmascript
// are not supported, so skip this script
// element if the version parameter is present.
continue;
}
PushbackInputStream pbis = new PushbackInputStream(is, 8);
byte[] buf = new byte[4];
int read = pbis.read(buf);
if (read > 0) {
pbis.unread(buf, 0, read);
if (read >= 2) {
if (buf[0] == (byte) 0xff && buf[1] == (byte) 0xfe) {
if (read >= 4 && buf[2] == 0 && buf[3] == 0) {
enc = "UTF32-LE";
pbis.skip(4);
} else {
enc = "UTF-16LE";
pbis.skip(2);
}
} else if (buf[0] == (byte) 0xfe && buf[1] == (byte) 0xff) {
enc = "UTF-16BE";
pbis.skip(2);
} else if (read >= 3
&& buf[0] == (byte) 0xef
&& buf[1] == (byte) 0xbb
&& buf[2] == (byte) 0xbf) {
enc = "UTF-8";
pbis.skip(3);
} else if (read >= 4
&& buf[0] == 0
&& buf[1] == 0
&& buf[2] == (byte) 0xfe
&& buf[3] == (byte) 0xff) {
enc = "UTF-32BE";
pbis.skip(4);
}
}
if (enc == null) {
enc = "UTF-8";
}
}
reader = new InputStreamReader(pbis, enc);
} else {
reader = new InputStreamReader(is);
}
}
} else {
checkCompatibleScriptURL(type, docPURL);
DocumentLoader dl = bridgeContext.getDocumentLoader();
Element e = script;
SVGDocument d = (SVGDocument) e.getOwnerDocument();
int line = dl.getLineNumber(script);
desc =
Messages.formatMessage(
INLINE_SCRIPT_DESCRIPTION,
new Object[] {d.getURL(), "<" + script.getNodeName() + ">", new Integer(line)});
// Inline script.
Node n = script.getFirstChild();
if (n != null) {
StringBuffer sb = new StringBuffer();
while (n != null) {
if (n.getNodeType() == Node.CDATA_SECTION_NODE || n.getNodeType() == Node.TEXT_NODE)
sb.append(n.getNodeValue());
n = n.getNextSibling();
}
reader = new StringReader(sb.toString());
} else {
continue;
}
}
interpreter.evaluate(reader, desc);
} catch (IOException e) {
if (userAgent != null) {
userAgent.displayError(e);
}
return;
} catch (InterpreterException e) {
System.err.println("InterpExcept: " + e);
handleInterpreterException(e);
return;
} catch (SecurityException e) {
if (userAgent != null) {
userAgent.displayError(e);
}
}
}
}
/**
* creates a new image
*
* @param svgHandle a svg handle
* @param resourceId the id of the resource from which the image will be created
*/
protected void createNewImage(SVGHandle svgHandle, String resourceId) {
if (svgHandle != null && resourceId != null && !resourceId.equals("")) {
Element resourceElement = null;
resourceElement =
svgHandle.getScrollPane().getSVGCanvas().getDocument().getElementById(resourceId);
final String fresourceId = resourceId;
if (resourceElement != null) {
final SVGHandle fhandle = svgHandle;
// creating the canvas and setting its properties
final JSVGCanvas canvas =
new JSVGCanvas() {
@Override
public void dispose() {
removeKeyListener(listener);
removeMouseMotionListener(listener);
removeMouseListener(listener);
disableInteractions = true;
selectableText = false;
userAgent = null;
bridgeContext.dispose();
super.dispose();
}
};
// the element to be added
Element elementToAdd = null;
canvas.setDocumentState(JSVGComponent.ALWAYS_STATIC);
canvas.setDisableInteractions(true);
// creating the new document
final String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
final SVGDocument doc = (SVGDocument) resourceElement.getOwnerDocument().cloneNode(false);
// creating the root element
final Element root =
(Element)
doc.importNode(resourceElement.getOwnerDocument().getDocumentElement(), false);
doc.appendChild(root);
// removing all the attributes of the root element
NamedNodeMap attributes = doc.getDocumentElement().getAttributes();
for (int i = 0; i < attributes.getLength(); i++) {
if (attributes.item(i) != null) {
doc.getDocumentElement().removeAttribute(attributes.item(i).getNodeName());
}
}
// adding the new attributes for the root
root.setAttributeNS(null, "width", imageSize.width + "");
root.setAttributeNS(null, "height", imageSize.height + "");
root.setAttributeNS(null, "viewBox", "0 0 " + imageSize.width + " " + imageSize.height);
// the defs element that will contain the cloned resource node
final Element defs = (Element) doc.importNode(resourceElement.getParentNode(), true);
root.appendChild(defs);
if (resourceElement.getNodeName().equals("linearGradient")
|| resourceElement.getNodeName().equals("radialGradient")
|| resourceElement.getNodeName().equals("pattern")) {
// the rectangle that will be drawn
final Element rect = doc.createElementNS(svgNS, "rect");
rect.setAttributeNS(null, "x", "0");
rect.setAttributeNS(null, "y", "0");
rect.setAttributeNS(null, "width", imageSize.width + "");
rect.setAttributeNS(null, "height", imageSize.height + "");
elementToAdd = rect;
// setting that the rectangle uses the resource
String id = resourceElement.getAttribute("id");
if (id == null) {
id = "";
}
rect.setAttributeNS(null, "style", "fill:url(#" + id + ");");
// getting the cloned resource node
Node cur = null;
Element clonedResourceElement = null;
String id2 = "";
for (cur = defs.getFirstChild(); cur != null; cur = cur.getNextSibling()) {
if (cur instanceof Element) {
id2 = ((Element) cur).getAttribute("id");
if (id2 != null && id.equals(id2)) {
clonedResourceElement = (Element) cur;
}
}
}
if (clonedResourceElement != null) {
// getting the root element of the initial resource
// element
Element initialRoot = resourceElement.getOwnerDocument().getDocumentElement();
// getting the width and height of the initial root
// element
double initialWidth = 0, initialHeight = 0;
try {
initialWidth =
EditorToolkit.getPixelledNumber(initialRoot.getAttributeNS(null, "width"));
initialHeight =
EditorToolkit.getPixelledNumber(initialRoot.getAttributeNS(null, "height"));
} catch (DOMException ex) {
ex.printStackTrace();
}
if (resourceElement.getNodeName().equals("linearGradient")) {
if (resourceElement.getAttributeNS(null, "gradientUnits").equals("userSpaceOnUse")) {
double x1 = 0, y1 = 0, x2 = 0, y2 = 0;
// normalizing the values for the vector to fit
// the rectangle
try {
x1 = Double.parseDouble(resourceElement.getAttributeNS(null, "x1"));
y1 = Double.parseDouble(resourceElement.getAttributeNS(null, "y1"));
x2 = Double.parseDouble(resourceElement.getAttributeNS(null, "x2"));
y2 = Double.parseDouble(resourceElement.getAttributeNS(null, "y2"));
x1 = x1 / initialWidth * imageSize.width;
y1 = y1 / initialHeight * imageSize.height;
x2 = x2 / initialWidth * imageSize.width;
y2 = y2 / initialHeight * imageSize.height;
} catch (NumberFormatException | DOMException ex) {
ex.printStackTrace();
}
clonedResourceElement.setAttributeNS(null, "x1", format.format(x1));
clonedResourceElement.setAttributeNS(null, "y1", format.format(y1));
clonedResourceElement.setAttributeNS(null, "x2", format.format(x2));
clonedResourceElement.setAttributeNS(null, "y2", format.format(y2));
}
} else if (resourceElement.getNodeName().equals("radialGradient")) {
if (resourceElement.getAttributeNS(null, "gradientUnits").equals("userSpaceOnUse")) {
double cx = 0, cy = 0, r = 0, fx = 0, fy = 0;
// normalizing the values for the circle to fit
// the rectangle
try {
cx = Double.parseDouble(resourceElement.getAttributeNS(null, "cx"));
cy = Double.parseDouble(resourceElement.getAttributeNS(null, "cy"));
r = Double.parseDouble(resourceElement.getAttributeNS(null, "r"));
fx = Double.parseDouble(resourceElement.getAttributeNS(null, "fx"));
fy = Double.parseDouble(resourceElement.getAttributeNS(null, "fy"));
cx = cx / initialWidth * imageSize.width;
cy = cy / initialHeight * imageSize.height;
r =
r
/ (Math.abs(
Math.sqrt(Math.pow(initialWidth, 2) + Math.pow(initialHeight, 2))))
* Math.abs(
Math.sqrt(
Math.pow(imageSize.width, 2) + Math.pow(imageSize.width, 2)));
fx = fx / initialWidth * imageSize.width;
fy = fy / initialHeight * imageSize.height;
} catch (NumberFormatException | DOMException ex) {
ex.printStackTrace();
}
clonedResourceElement.setAttributeNS(null, "cx", format.format(cx));
clonedResourceElement.setAttributeNS(null, "cy", format.format(cy));
clonedResourceElement.setAttributeNS(null, "r", format.format(r));
clonedResourceElement.setAttributeNS(null, "fx", format.format(fx));
clonedResourceElement.setAttributeNS(null, "fy", format.format(fy));
}
} else if (resourceElement.getNodeName().equals("pattern")) {
if (resourceElement.getAttributeNS(null, "patternUnits").equals("userSpaceOnUse")) {
double x = 0, y = 0, w = 0, h = 0;
// normalizing the values for the vector to fit
// the rectangle
try {
String xString = resourceElement.getAttributeNS(null, "x");
if (!xString.equals("")) {
x = Double.parseDouble(xString);
}
String yString = resourceElement.getAttributeNS(null, "y");
if (!yString.equals("")) {
y = Double.parseDouble(yString);
}
String wString = resourceElement.getAttributeNS(null, "w");
if (!wString.equals("")) {
w = Double.parseDouble(wString);
}
String hString = resourceElement.getAttributeNS(null, "h");
if (!hString.equals("")) {
h = Double.parseDouble(hString);
}
x = x / initialWidth * imageSize.width;
y = y / initialHeight * imageSize.height;
w = w / initialWidth * imageSize.width;
h = h / initialHeight * imageSize.height;
} catch (NumberFormatException | DOMException ex) {
ex.printStackTrace();
}
clonedResourceElement.setAttributeNS(null, "x", format.format(x));
clonedResourceElement.setAttributeNS(null, "y", format.format(y));
clonedResourceElement.setAttributeNS(null, "width", format.format(w));
clonedResourceElement.setAttributeNS(null, "height", format.format(h));
}
}
}
} else if (resourceElement.getNodeName().equals("marker")) {
// the line that will be drawn
final Element line = doc.createElementNS(svgNS, "line");
line.setAttributeNS(null, "x1", (((double) imageSize.width) / 2) + "");
line.setAttributeNS(null, "y1", (((double) imageSize.height) / 2) + "");
line.setAttributeNS(null, "x2", ((double) imageSize.width / 2) + "");
line.setAttributeNS(null, "y2", imageSize.height + "");
elementToAdd = line;
// setting that the line uses the resource
String id = resourceElement.getAttribute("id");
if (id == null) id = "";
line.setAttributeNS(
null, "style", "stroke:none;fill:none;marker-start:url(#" + id + ");");
}
root.appendChild(elementToAdd);
// adding a rendering listener to the canvas
GVTTreeRendererAdapter gVTTreeRendererAdapter =
new GVTTreeRendererAdapter() {
@Override
public void gvtRenderingCompleted(GVTTreeRendererEvent evt) {
Image bufferedImage = canvas.getOffScreen();
if (bufferedImage != null) {
Graphics g = bufferedImage.getGraphics();
Color borderColor = MetalLookAndFeel.getSeparatorForeground();
g.setColor(borderColor);
g.drawRect(0, 0, imageSize.width - 1, imageSize.height - 1);
}
setImage(fhandle, fresourceId, bufferedImage);
// refreshing the panels that have been created when no
// image was available for them
Image image = null;
for (ResourceRepresentation resourceRepresentation :
new LinkedList<ResourceRepresentation>(resourceRepresentationList)) {
if (resourceRepresentation != null) {
resourceRepresentation.refreshRepresentation();
image = resourceRepresentation.getImage();
if (image != null) {
resourceRepresentationList.remove(resourceRepresentation);
}
}
}
canvas.removeGVTTreeRendererListener(this);
canvas.stopProcessing();
canvas.dispose();
}
};
canvas.addGVTTreeRendererListener(gVTTreeRendererAdapter);
// setting the document for the canvas
canvas.setSVGDocument(doc);
canvas.setBackground(Color.white);
canvas.setBounds(1, 1, imageSize.width, imageSize.height);
}
}
}
){kind=link}
