protected override void CheckColor(PdfWriter writer, int key, Object obj1)
{
switch (key)
{
case PdfIsoKeys.PDFISOKEY_COLOR:
if (obj1 is ExtendedColor)
{
ExtendedColor ec = (ExtendedColor)obj1;
switch (ec.Type)
{
case ExtendedColor.TYPE_CMYK:
CheckColor(writer, PdfIsoKeys.PDFISOKEY_CMYK, obj1);
break;
case ExtendedColor.TYPE_GRAY:
return;
case ExtendedColor.TYPE_RGB:
CheckColor(writer, PdfIsoKeys.PDFISOKEY_RGB, obj1);
break;
case ExtendedColor.TYPE_SEPARATION:
SpotColor sc = (SpotColor)ec;
CheckColor(writer, PdfIsoKeys.PDFISOKEY_COLOR, sc.PdfSpotColor.AlternativeCS);
break;
case ExtendedColor.TYPE_SHADING:
ShadingColor xc = (ShadingColor)ec;
CheckColor(writer, PdfIsoKeys.PDFISOKEY_COLOR, xc.PdfShadingPattern.Shading.ColorSpace);
break;
case ExtendedColor.TYPE_PATTERN:
PatternColor pc = (PatternColor)ec;
CheckColor(writer, PdfIsoKeys.PDFISOKEY_COLOR, pc.Painter.DefaultColor);
break;
}
}
else if (obj1 is BaseColor)
{
CheckColor(writer, PdfIsoKeys.PDFISOKEY_RGB, obj1);
}
break;
case PdfIsoKeys.PDFISOKEY_CMYK:
if (rgbUsed)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("devicergb.and.devicecmyk.colorspaces.cannot.be.used.both.in.one.file"));
}
cmykUsed = true;
break;
case PdfIsoKeys.PDFISOKEY_RGB:
if (cmykUsed)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("devicergb.and.devicecmyk.colorspaces.cannot.be.used.both.in.one.file"));
}
rgbUsed = true;
break;
}
}
/**
* Business logic that checks if a certain object is in conformance with PDF/X.
* @param writer the writer that is supposed to write the PDF/X file
* @param key the type of PDF ISO conformance that has to be checked
* @param obj1 the object that is checked for conformance
*/
public static void CheckPDFXConformance(PdfWriter writer, int key, Object obj1)
{
if (writer == null || !writer.IsPdfX())
{
return;
}
int conf = writer.PDFXConformance;
switch (key)
{
case PdfIsoKeys.PDFISOKEY_COLOR:
switch (conf)
{
case PdfWriter.PDFX1A2001:
if (obj1 is ExtendedColor)
{
ExtendedColor ec = (ExtendedColor)obj1;
switch (ec.Type)
{
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;
CheckPDFXConformance(writer, PdfIsoKeys.PDFISOKEY_COLOR, sc.PdfSpotColor.AlternativeCS);
break;
case ExtendedColor.TYPE_SHADING:
ShadingColor xc = (ShadingColor)ec;
CheckPDFXConformance(writer, PdfIsoKeys.PDFISOKEY_COLOR, xc.PdfShadingPattern.Shading.ColorSpace);
break;
case ExtendedColor.TYPE_PATTERN:
PatternColor pc = (PatternColor)ec;
CheckPDFXConformance(writer, PdfIsoKeys.PDFISOKEY_COLOR, pc.Painter.DefaultColor);
break;
}
}
else if (obj1 is 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).PostscriptFontName));
}
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)[0]))
{
throw new PdfXConformanceException(MessageLocalization.GetComposedMessage("colorspace.calrgb.is.not.allowed"));
}
}
break;
}
break;
case PdfIsoKeys.PDFISOKEY_GSTATE:
PdfDictionary gs = (PdfDictionary)obj1;
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", 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", v));
}
break;
case PdfIsoKeys.PDFISOKEY_LAYER:
throw new PdfXConformanceException(MessageLocalization.GetComposedMessage("layers.are.not.allowed"));
}
}
/**
* Business logic that checks if a certain object is in conformance with PDF/X.
* @param writer the writer that is supposed to write the PDF/X file
* @param key the type of PDF/X conformance that has to be checked
* @param obj1 the object that is checked for conformance
*/
public static void CheckPDFXConformance(PdfWriter writer, int key, Object obj1)
{
if (writer == null || !writer.IsPdfX())
{
return;
}
int conf = writer.PDFXConformance;
switch (key)
{
case PDFXKEY_COLOR:
switch (conf)
{
case PdfWriter.PDFX1A2001:
if (obj1 is ExtendedColor)
{
ExtendedColor ec = (ExtendedColor)obj1;
switch (ec.Type)
{
case ExtendedColor.TYPE_CMYK:
case ExtendedColor.TYPE_GRAY:
return;
case ExtendedColor.TYPE_RGB:
throw new PdfXConformanceException("Colorspace RGB is not allowed.");
case ExtendedColor.TYPE_SEPARATION:
SpotColor sc = (SpotColor)ec;
CheckPDFXConformance(writer, PDFXKEY_COLOR, sc.PdfSpotColor.AlternativeCS);
break;
case ExtendedColor.TYPE_SHADING:
ShadingColor xc = (ShadingColor)ec;
CheckPDFXConformance(writer, PDFXKEY_COLOR, xc.PdfShadingPattern.Shading.ColorSpace);
break;
case ExtendedColor.TYPE_PATTERN:
PatternColor pc = (PatternColor)ec;
CheckPDFXConformance(writer, PDFXKEY_COLOR, pc.Painter.DefaultColor);
break;
}
}
else if (obj1 is Color)
{
throw new PdfXConformanceException("Colorspace RGB is not allowed.");
}
break;
}
break;
case PDFXKEY_CMYK:
break;
case PDFXKEY_RGB:
if (conf == PdfWriter.PDFX1A2001)
{
throw new PdfXConformanceException("Colorspace RGB is not allowed.");
}
break;
case PDFXKEY_FONT:
if (!((BaseFont)obj1).IsEmbedded())
{
throw new PdfXConformanceException("All the fonts must be embedded. This one isn't: " + ((BaseFont)obj1).PostscriptFontName);
}
break;
case PDFXKEY_IMAGE:
PdfImage image = (PdfImage)obj1;
if (image.Get(PdfName.SMASK) != null)
{
throw new PdfXConformanceException("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("Colorspace RGB is not allowed.");
}
}
else if (cs.IsArray())
{
if (PdfName.CALRGB.Equals(((PdfArray)cs)[0]))
{
throw new PdfXConformanceException("Colorspace CalRGB is not allowed.");
}
}
break;
}
break;
case PDFXKEY_GSTATE:
PdfDictionary gs = (PdfDictionary)obj1;
PdfObject obj = gs.Get(PdfName.BM);
if (obj != null && !PdfGState.BM_NORMAL.Equals(obj) && !PdfGState.BM_COMPATIBLE.Equals(obj))
{
throw new PdfXConformanceException("Blend mode " + obj.ToString() + " not allowed.");
}
obj = gs.Get(PdfName.CA);
double v = 0.0;
if (obj != null && (v = ((PdfNumber)obj).DoubleValue) != 1.0)
{
throw new PdfXConformanceException("Transparency is not allowed: /CA = " + v);
}
obj = gs.Get(PdfName.ca_);
v = 0.0;
if (obj != null && (v = ((PdfNumber)obj).DoubleValue) != 1.0)
{
throw new PdfXConformanceException("Transparency is not allowed: /ca = " + v);
}
break;
case PDFXKEY_LAYER:
throw new PdfXConformanceException("Layers are not allowed.");
}
}
public Chap1014()
{
Console.WriteLine("Chapter 10 Example 14: colored patterns");
// step 1: creation of a document-object
Document document = new Document(PageSize.A4, 50, 50, 50, 50);
Document.Compress = false;
try
{
// step 2:
// we create a writer that listens to the document
// and directs a PDF-stream to a file
PdfWriter writer = PdfWriter.GetInstance(document, new FileStream("Chap1014.pdf", FileMode.Create));
// step 3: we open the document
document.Open();
// step 4: we add some content
PdfContentByte cb = writer.DirectContent;
PdfTemplate tp = cb.CreateTemplate(400, 300);
PdfPatternPainter pat = cb.CreatePattern(15, 15, null);
pat.Rectangle(5, 5, 5, 5);
pat.Fill();
PdfSpotColor spc_cmyk = new PdfSpotColor("PANTONE 280 CV", 0.25f, new CMYKColor(0.9f, .2f, .3f, .1f));
SpotColor spot = new SpotColor(spc_cmyk);
tp.SetPatternFill(pat, spot, .9f);
tp.Rectangle(0, 0, 400, 300);
tp.Fill();
cb.AddTemplate(tp, 50, 50);
PdfPatternPainter pat2 = cb.CreatePattern(10, 10, null);
pat2.SetLineWidth(2);
pat2.MoveTo(-5, 0);
pat2.LineTo(10, 15);
pat2.Stroke();
pat2.MoveTo(0, -5);
pat2.LineTo(15, 10);
pat2.Stroke();
cb.SetLineWidth(1);
cb.SetColorStroke(new Color(System.Drawing.Color.Black));
cb.SetPatternFill(pat2, new Color(System.Drawing.Color.Red));
cb.Rectangle(100, 400, 30, 210);
cb.FillStroke();
cb.SetPatternFill(pat2, new Color(System.Drawing.Color.LightGreen));
cb.Rectangle(150, 400, 30, 100);
cb.FillStroke();
cb.SetPatternFill(pat2, new Color(System.Drawing.Color.Blue));
cb.Rectangle(200, 400, 30, 130);
cb.FillStroke();
cb.SetPatternFill(pat2, new GrayColor(0.5f));
cb.Rectangle(250, 400, 30, 80);
cb.FillStroke();
cb.SetPatternFill(pat2, new GrayColor(0.7f));
cb.Rectangle(300, 400, 30, 170);
cb.FillStroke();
cb.SetPatternFill(pat2, new GrayColor(0.9f));
cb.Rectangle(350, 400, 30, 40);
cb.FillStroke();
}
catch (Exception de)
{
Console.Error.WriteLine(de.Message);
Console.Error.WriteLine(de.StackTrace);
}
// step 5: we close the document
document.Close();
}
