public static PdfShading simpleRadial(
PdfWriter writer,
float x0,
float y0,
float r0,
float x1,
float y1,
float r1,
BaseColor startColor,
BaseColor endColor,
boolean extendStart,
boolean extendEnd) {
checkCompatibleColors(startColor, endColor);
PdfFunction function =
PdfFunction.type2(
writer,
new float[] {0, 1},
null,
getColorArray(startColor),
getColorArray(endColor),
1);
return type3(
writer,
startColor,
new float[] {x0, y0, r0, x1, y1, r1},
null,
function,
new boolean[] {extendStart, extendEnd});
}
public static PdfShading type1(
PdfWriter writer,
BaseColor colorSpace,
float domain[],
float tMatrix[],
PdfFunction function) {
PdfShading sp = new PdfShading(writer);
sp.shading = new PdfDictionary();
sp.shadingType = 1;
sp.shading.put(PdfName.SHADINGTYPE, new PdfNumber(sp.shadingType));
sp.setColorSpace(colorSpace);
if (domain != null) sp.shading.put(PdfName.DOMAIN, new PdfArray(domain));
if (tMatrix != null) sp.shading.put(PdfName.MATRIX, new PdfArray(tMatrix));
sp.shading.put(PdfName.FUNCTION, function.getReference());
return sp;
}
public static PdfShading type2(
PdfWriter writer,
BaseColor colorSpace,
float coords[],
float domain[],
PdfFunction function,
boolean extend[]) {
PdfShading sp = new PdfShading(writer);
sp.shading = new PdfDictionary();
sp.shadingType = 2;
sp.shading.put(PdfName.SHADINGTYPE, new PdfNumber(sp.shadingType));
sp.setColorSpace(colorSpace);
sp.shading.put(PdfName.COORDS, new PdfArray(coords));
if (domain != null) sp.shading.put(PdfName.DOMAIN, new PdfArray(domain));
sp.shading.put(PdfName.FUNCTION, function.getReference());
if (extend != null && (extend[0] || extend[1])) {
PdfArray array = new PdfArray(extend[0] ? PdfBoolean.PDFTRUE : PdfBoolean.PDFFALSE);
array.add(extend[1] ? PdfBoolean.PDFTRUE : PdfBoolean.PDFFALSE);
sp.shading.put(PdfName.EXTEND, array);
}
return sp;
}
protected PdfObject getSpotObject(PdfWriter writer) throws IOException {
PdfArray array = new PdfArray(PdfName.SEPARATION);
array.add(name);
PdfFunction func = null;
if (altcs instanceof ExtendedColor) {
int type = ((ExtendedColor) altcs).type;
// ssteward
// having trouble with unreachable bytecode in switch default (per gcj 4.4)
// so try a clumsier workaround
boolean handled_b = false;
switch (type) {
case ExtendedColor.TYPE_GRAY:
array.add(PdfName.DEVICEGRAY);
func =
PdfFunction.type2(
writer,
new float[] {0, 1},
null,
new float[] {0},
new float[] {((GrayColor) altcs).getGray()},
1);
handled_b = true;
break;
case ExtendedColor.TYPE_CMYK:
array.add(PdfName.DEVICECMYK);
CMYKColor cmyk = (CMYKColor) altcs;
func =
PdfFunction.type2(
writer,
new float[] {0, 1},
null,
new float[] {0, 0, 0, 0},
new float[] {
cmyk.getCyan(), cmyk.getMagenta(), cmyk.getYellow(), cmyk.getBlack()
},
1);
handled_b = true;
break;
// default:
// throw new RuntimeException("Only RGB, Gray and CMYK are supported as
// alternative color spaces.");
}
if (!handled_b) {
throw new RuntimeException(
"Only RGB, Gray and CMYK are supported as alternative color spaces.");
}
} else {
array.add(PdfName.DEVICERGB);
func =
PdfFunction.type2(
writer,
new float[] {0, 1},
null,
new float[] {1, 1, 1},
new float[] {
(float) altcs.getRed() / 255,
(float) altcs.getGreen() / 255,
(float) altcs.getBlue() / 255
},
1);
}
array.add(func.getReference());
return array;
}
