private void paint(Shuttle shuttle) throws InvalidXMLException {
Element e = shuttle.node;
String shapeName = e.getLocalName();
if (!SVG.NS.equals(e.getNamespaceURI())) {
for (Node c = e.getFirstChild(); c != null; c = c.getNextSibling()) {
if (c.getNodeType() != Node.ELEMENT_NODE) continue;
Shuttle cp = new Shuttle(shuttle, Element.class.cast(c));
paint(cp);
}
} else if (shapeName == null) {
LOG.warning("shapeName is null");
} else if (shapeName.equals("g")) {
for (Node c = e.getFirstChild(); c != null; c = c.getNextSibling()) {
if (c.getNodeType() != Node.ELEMENT_NODE) continue;
Shuttle cp = new Shuttle(shuttle, Element.class.cast(c));
paint(cp);
}
} else if (shapeName.equals("path")) {
Attr d = e.getAttributeNode("d");
if (d != null) {
shuttle.shape = SVGUtils.pathToShape(d.getValue());
drawShape(shuttle);
}
} else if (shapeName.equals("polyline")) {
Attr points = e.getAttributeNode("points");
if (points != null) {
shuttle.shape = SVGUtils.polylineToShape(points.getValue());
drawShape(shuttle);
}
} else if (shapeName.equals("polygon")) {
Attr points = e.getAttributeNode("points");
if (points != null) {
shuttle.shape = SVGUtils.polygonToShape(points.getValue());
drawShape(shuttle);
}
} else if (shapeName.equals("rect")) {
Attr x = e.getAttributeNode("x");
Attr y = e.getAttributeNode("y");
Attr w = e.getAttributeNode("width");
Attr h = e.getAttributeNode("height");
if (x != null && y != null && w != null && h != null) {
shuttle.shape =
new Rectangle2D.Double(
Double.parseDouble(x.getValue()),
Double.parseDouble(y.getValue()),
Double.parseDouble(w.getValue()),
Double.parseDouble(h.getValue()));
drawShape(shuttle);
}
} else if (shapeName.equals("line")) {
Attr x1 = e.getAttributeNode("x1");
Attr y1 = e.getAttributeNode("y1");
Attr x2 = e.getAttributeNode("x2");
Attr y2 = e.getAttributeNode("y2");
if (x1 != null && y1 != null && x2 != null && y2 != null) {
shuttle.shape =
new Line2D.Double(
Double.parseDouble(x1.getValue()),
Double.parseDouble(y1.getValue()),
Double.parseDouble(x2.getValue()),
Double.parseDouble(y2.getValue()));
drawShape(shuttle);
}
} else if (shapeName.equals("circle")) {
Attr cx = e.getAttributeNode("cx");
Attr cy = e.getAttributeNode("cy");
Attr r = e.getAttributeNode("r");
if (cx != null && cy != null && r != null) {
double radius = Double.parseDouble(r.getValue());
shuttle.shape =
new Ellipse2D.Double(
Double.parseDouble(cx.getValue()) - radius,
Double.parseDouble(cy.getValue()) - radius,
radius * 2,
radius * 2);
drawShape(shuttle);
}
} else if (shapeName.equals("ellipse")) {
Attr cx = e.getAttributeNode("cx");
Attr cy = e.getAttributeNode("cy");
Attr rx = e.getAttributeNode("rx");
Attr ry = e.getAttributeNode("ry");
if (cx != null && cy != null && rx != null && ry != null) {
double radiusx = Double.parseDouble(rx.getValue());
double radiusy = Double.parseDouble(ry.getValue());
shuttle.shape =
new Ellipse2D.Double(
Double.parseDouble(cx.getValue()) - radiusx,
Double.parseDouble(cy.getValue()) - radiusy,
radiusx * 2,
radiusy * 2);
drawShape(shuttle);
}
} else if (StringUtils.isIn(shapeName, "title", "defs", "desc", "metadata")) {
// ignore
} else if (shapeName.equals("text")) {
Attr x = e.getAttributeNode("x");
Attr y = e.getAttributeNode("y");
if (x != null && y != null) {
Font f = new Font(shuttle.fontFamily, Font.PLAIN, (int) shuttle.fontSize);
FontRenderContext frc = shuttle.g.getFontRenderContext();
TextLayout tl = new TextLayout(e.getTextContent(), f, frc);
shuttle.shape = tl.getOutline(null);
shuttle.shape =
AffineTransform.getTranslateInstance(
Double.parseDouble(x.getValue()), Double.parseDouble(y.getValue()))
.createTransformedShape(shuttle.shape);
drawShape(shuttle);
}
} else if (shapeName.equals("svg")) {
for (Node c = e.getFirstChild(); c != null; c = c.getNextSibling()) {
if (c.getNodeType() != Node.ELEMENT_NODE) continue;
Shuttle cp = new Shuttle(shuttle, Element.class.cast(c));
paint(cp);
}
} else {
LOG.warning("cannot display <" + e.getLocalName() + ">");
}
}
public void paint(Graphics2D g, Node dom, Rectangle2D viewRect) throws InvalidXMLException {
if (g == null) throw new NullPointerException("g is null");
if (dom == null) throw new NullPointerException("dom is null");
Element root = null;
if (dom.getNodeType() == Node.DOCUMENT_NODE) {
root = Document.class.cast(dom).getDocumentElement();
} else if (dom.getNodeType() == Node.ELEMENT_NODE) {
root = Element.class.cast(dom);
}
if (root == null) throw new InvalidXMLException(dom, "no root");
if (!XMLUtilities.isA(root, SVG.NS, "svg"))
throw new InvalidXMLException(root, "not a SVG root");
Dimension2D srcSize = getSize(root);
Rectangle2D viewBox = null;
Attr viewBoxAttr = root.getAttributeNode("viewBox");
if (viewBoxAttr != null) {
String tokens[] = viewBoxAttr.getValue().trim().split("[ \t\n]+");
if (tokens.length != 4) throw new InvalidXMLException(viewBoxAttr, "invalid ");
viewBox =
new Rectangle2D.Double(
Double.parseDouble(tokens[0]),
Double.parseDouble(tokens[1]),
Double.parseDouble(tokens[2]),
Double.parseDouble(tokens[3]));
srcSize = new Dimension2D.Double(viewBox.getWidth(), viewBox.getHeight());
}
AffineTransform originalTr = null;
if (viewRect == null) {
viewRect = new Rectangle2D.Double(0, 0, srcSize.getWidth(), srcSize.getHeight());
} else {
if (srcSize.getWidth() > 0 && srcSize.getHeight() > 0) {
originalTr = g.getTransform();
double ratio =
Math.min(
viewRect.getWidth() / srcSize.getWidth(),
viewRect.getHeight() / srcSize.getHeight());
g.translate(
(viewRect.getWidth() - srcSize.getWidth() * ratio) / 2.0,
(viewRect.getHeight() - srcSize.getHeight() * ratio) / 2.0);
g.scale(ratio, ratio);
}
}
Shape oldclip = g.getClip();
Shuttle shuttle = new Shuttle(g, root);
if (viewBox != null) {
AffineTransform tr = AffineTransform.getTranslateInstance(-viewBox.getX(), -viewBox.getY());
shuttle.transform.concatenate(tr);
Area area = new Area(shuttle.clip);
area.intersect(
new Area(new Rectangle2D.Double(0, 0, viewBox.getWidth(), viewBox.getHeight())));
shuttle.clip = area;
}
paint(shuttle);
if (originalTr != null) {
g.setTransform(originalTr);
}
g.setClip(oldclip);
}
