/**
* Business logic that checks if a certain object is in conformance with PDF/X.
*
* @param key the type of PDF ISO conformance that has to be checked
* @param obj1 the object that is checked for conformance
*/
public void checkPdfIsoConformance(int key, Object obj1) {
if (writer == null || !writer.isPdfX()) return;
int conf = writer.getPDFXConformance();
switch (key) {
case PdfIsoKeys.PDFISOKEY_COLOR:
switch (conf) {
case PdfWriter.PDFX1A2001:
if (obj1 instanceof ExtendedColor) {
ExtendedColor ec = (ExtendedColor) obj1;
switch (ec.getType()) {
case ExtendedColor.TYPE_CMYK:
case ExtendedColor.TYPE_GRAY:
return;
case ExtendedColor.TYPE_RGB:
throw new PdfXConformanceException(
MessageLocalization.getComposedMessage("colorspace.rgb.is.not.allowed"));
case ExtendedColor.TYPE_SEPARATION:
SpotColor sc = (SpotColor) ec;
checkPdfIsoConformance(
PdfIsoKeys.PDFISOKEY_COLOR, sc.getPdfSpotColor().getAlternativeCS());
break;
case ExtendedColor.TYPE_SHADING:
ShadingColor xc = (ShadingColor) ec;
checkPdfIsoConformance(
PdfIsoKeys.PDFISOKEY_COLOR,
xc.getPdfShadingPattern().getShading().getColorSpace());
break;
case ExtendedColor.TYPE_PATTERN:
PatternColor pc = (PatternColor) ec;
checkPdfIsoConformance(
PdfIsoKeys.PDFISOKEY_COLOR, pc.getPainter().getDefaultColor());
break;
}
} else if (obj1 instanceof BaseColor)
throw new PdfXConformanceException(
MessageLocalization.getComposedMessage("colorspace.rgb.is.not.allowed"));
break;
}
break;
case PdfIsoKeys.PDFISOKEY_CMYK:
break;
case PdfIsoKeys.PDFISOKEY_RGB:
if (conf == PdfWriter.PDFX1A2001)
throw new PdfXConformanceException(
MessageLocalization.getComposedMessage("colorspace.rgb.is.not.allowed"));
break;
case PdfIsoKeys.PDFISOKEY_FONT:
if (!((BaseFont) obj1).isEmbedded())
throw new PdfXConformanceException(
MessageLocalization.getComposedMessage(
"all.the.fonts.must.be.embedded.this.one.isn.t.1",
((BaseFont) obj1).getPostscriptFontName()));
break;
case PdfIsoKeys.PDFISOKEY_IMAGE:
PdfImage image = (PdfImage) obj1;
if (image.get(PdfName.SMASK) != null)
throw new PdfXConformanceException(
MessageLocalization.getComposedMessage("the.smask.key.is.not.allowed.in.images"));
switch (conf) {
case PdfWriter.PDFX1A2001:
PdfObject cs = image.get(PdfName.COLORSPACE);
if (cs == null) return;
if (cs.isName()) {
if (PdfName.DEVICERGB.equals(cs))
throw new PdfXConformanceException(
MessageLocalization.getComposedMessage("colorspace.rgb.is.not.allowed"));
} else if (cs.isArray()) {
if (PdfName.CALRGB.equals(((PdfArray) cs).getPdfObject(0)))
throw new PdfXConformanceException(
MessageLocalization.getComposedMessage("colorspace.calrgb.is.not.allowed"));
}
break;
}
break;
case PdfIsoKeys.PDFISOKEY_GSTATE:
PdfDictionary gs = (PdfDictionary) obj1;
// The example PdfXPdfA threw a NullPointerException because gs was null
if (gs == null) break;
PdfObject obj = gs.get(PdfName.BM);
if (obj != null && !PdfGState.BM_NORMAL.equals(obj) && !PdfGState.BM_COMPATIBLE.equals(obj))
throw new PdfXConformanceException(
MessageLocalization.getComposedMessage("blend.mode.1.not.allowed", obj.toString()));
obj = gs.get(PdfName.CA);
double v = 0.0;
if (obj != null && (v = ((PdfNumber) obj).doubleValue()) != 1.0)
throw new PdfXConformanceException(
MessageLocalization.getComposedMessage(
"transparency.is.not.allowed.ca.eq.1", String.valueOf(v)));
obj = gs.get(PdfName.ca);
v = 0.0;
if (obj != null && (v = ((PdfNumber) obj).doubleValue()) != 1.0)
throw new PdfXConformanceException(
MessageLocalization.getComposedMessage(
"transparency.is.not.allowed.ca.eq.1", String.valueOf(v)));
break;
case PdfIsoKeys.PDFISOKEY_LAYER:
throw new PdfXConformanceException(
MessageLocalization.getComposedMessage("layers.are.not.allowed"));
}
}
