// construct the linear gradient from XML
public RadialGradient(XMLUtility XMLUtility, Node root) throws ParseException {
// get the transformation matrix
Node matrixNode = XMLUtility.findNode(root, "Matrix");
TransformationMatrix m = new TransformationMatrix(XMLUtility, matrixNode);
fCenterX = m.getTranslateX();
fCenterY = m.getTranslateY();
double radius1 = 819.2 * m.getMatrix()[0][0]; // a
double radius2 = 819.2 * m.getMatrix()[1][1]; // d
if (radius1 == radius2) // circle
{
fRadius = radius1;
} else // oval
{
// this is a stab in the dark at a filthy hack
// I think 'a' and 'c' in the transform are modifiers for the radius of the ellipse
// can't find any documentation on this, and for the flas I'm working with this
// looks acceptable
fRadius = 819.2 * m.getMatrix()[1][0]; // c
}
// get the gradient entries
Vector<Node> nodes = XMLUtility.findNodes(root, "GradientEntry");
for (Node node : nodes) {
double ratio = XMLUtility.getDoubleAttribute(node, "ratio", 0.0);
String colorCode = XMLUtility.getAttribute(node, "color", "#000000");
Color color = Color.parseColor(colorCode);
color.setAlpha(XMLUtility.getDoubleAttribute(node, "alpha", 1.0));
fColorStops.add(new ColorStop(ratio, color));
}
}
