}
}
PDFDeviceColorSpace aColorSpace;
aColorSpace = new PDFDeviceColorSpace(PDFDeviceColorSpace.DEVICE_RGB);
PDFPattern myPat = pdfDoc.getFactory().makeGradient(
resourceContext, false, aColorSpace,
someColors, theBounds, theCoords, theMatrix);
currentStream.write(myPat.getColorSpaceOut(fill));
return true;
}
if (paint instanceof RadialGradientPaint) {
RadialGradientPaint rgp = (RadialGradientPaint)paint;
// There is essentially no way to support repeate
// in PDF for radial gradients (the one option would
// be to 'grow' the outer circle until it fully covered
// the bounds and then grow the stops accordingly, the
// problem is that this may require an extremely large
// number of stops for cases where the focus is near
// the edge of the outer circle). so we rasterize.
MultipleGradientPaint.CycleMethodEnum cycle = rgp.getCycleMethod();
if (cycle != MultipleGradientPaint.NO_CYCLE) {
return false;
}
AffineTransform transform;
transform = new AffineTransform(getBaseTransform());
transform.concatenate(getTransform());
transform.concatenate(rgp.getTransform());
List theMatrix = new java.util.ArrayList();
double [] mat = new double[6];
transform.getMatrix(mat);
for (int idx = 0; idx < mat.length; idx++) {
theMatrix.add(new Double(mat[idx]));
}
double ar = rgp.getRadius();
Point2D ac = rgp.getCenterPoint();
Point2D af = rgp.getFocusPoint();
List theCoords = new java.util.ArrayList();
double dx = af.getX() - ac.getX();
double dy = af.getY() - ac.getY();
double d = Math.sqrt(dx * dx + dy * dy);
if (d > ar) {
// the center point af must be within the circle with
// radius ar centered at ac so limit it to that.
double scale = (ar * .9999) / d;
dx = dx * scale;
dy = dy * scale;
}
theCoords.add(new Double(ac.getX() + dx)); // Fx
theCoords.add(new Double(ac.getY() + dy)); // Fy
theCoords.add(new Double(0));
theCoords.add(new Double(ac.getX()));
theCoords.add(new Double(ac.getY()));
theCoords.add(new Double(ar));
Color[] cols = rgp.getColors();
List someColors = new java.util.ArrayList();
for (int count = 0; count < cols.length; count++) {
Color cc = cols[count];
if (cc.getAlpha() != 255) {
return false; // PDF can't do alpha
}
someColors.add(new PDFColor(cc.getRed(), cc.getGreen(),
cc.getBlue()));
}
float[] fractions = rgp.getFractions();
List theBounds = new java.util.ArrayList();
for (int count = 1; count < fractions.length - 1; count++) {
float offset = fractions[count];
theBounds.add(new Double(offset));
}
PDFDeviceColorSpace colSpace;
colSpace = new PDFDeviceColorSpace(PDFDeviceColorSpace.DEVICE_RGB);
PDFPattern myPat = pdfDoc.getFactory().makeGradient
(resourceContext, true, colSpace,
someColors, theBounds, theCoords, theMatrix);
currentStream.write(myPat.getColorSpaceOut(fill));
return true;
}
if (paint instanceof PatternPaint) {
PatternPaint pp = (PatternPaint)paint;