public static PdfArray GetMKColor(Color color)
{
PdfArray array = new PdfArray();
int type = ExtendedColor.GetType(color);
switch (type)
{
case ExtendedColor.TYPE_GRAY: {
array.Add(new PdfNumber(((GrayColor)color).Gray));
break;
}
case ExtendedColor.TYPE_CMYK: {
CMYKColor cmyk = (CMYKColor)color;
array.Add(new PdfNumber(cmyk.Cyan));
array.Add(new PdfNumber(cmyk.Magenta));
array.Add(new PdfNumber(cmyk.Yellow));
array.Add(new PdfNumber(cmyk.Black));
break;
}
case ExtendedColor.TYPE_SEPARATION:
case ExtendedColor.TYPE_PATTERN:
case ExtendedColor.TYPE_SHADING:
throw new Exception("Separations, patterns and shadings are not allowed in MK dictionary.");
default:
array.Add(new PdfNumber(color.R / 255f));
array.Add(new PdfNumber(color.G / 255f));
array.Add(new PdfNumber(color.B / 255f));
break;
}
return(array);
}
public static float[] GetColorArray(Color color)
{
int type = ExtendedColor.GetType(color);
switch (type)
{
case ExtendedColor.TYPE_GRAY: {
return(new float[] { ((GrayColor)color).Gray });
}
case ExtendedColor.TYPE_CMYK: {
CMYKColor cmyk = (CMYKColor)color;
return(new float[] { cmyk.Cyan, cmyk.Magenta, cmyk.Yellow, cmyk.Black });
}
case ExtendedColor.TYPE_SEPARATION: {
return(new float[] { ((SpotColor)color).Tint });
}
case ExtendedColor.TYPE_RGB: {
return(new float[] { color.R / 255f, color.G / 255f, color.B / 255f });
}
}
ThrowColorSpaceError();
return(null);
}
public override bool Equals(Object obj)
{
if (!(obj is CMYKColor))
{
return(false);
}
CMYKColor c2 = (CMYKColor)obj;
return(ccyan == c2.ccyan && cmagenta == c2.cmagenta && cyellow == c2.cyellow && cblack == c2.cblack);
}
protected internal PdfObject GetSpotObject(PdfWriter writer)
{
PdfArray array = new PdfArray(PdfName.SEPARATION);
array.Add(name);
PdfFunction func = null;
if (altcs is ExtendedColor)
{
int type = ((ExtendedColor)altcs).Type;
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).Gray }, 1);
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.Cyan, cmyk.Magenta, cmyk.Yellow, cmyk.Black }, 1);
break;
default:
throw new Exception("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.R / 255, (float)altcs.G / 255, (float)altcs.B / 255 }, 1);
}
array.Add(func.Reference);
return(array);
}
public static Object[] SplitDAelements(String da)
{
PRTokeniser tk = new PRTokeniser(PdfEncodings.ConvertToBytes(da, null));
ArrayList stack = new ArrayList();
Object[] ret = new Object[3];
while (tk.NextToken()) {
if (tk.TokenType == PRTokeniser.TK_COMMENT)
continue;
if (tk.TokenType == PRTokeniser.TK_OTHER) {
String oper = tk.StringValue;
if (oper.Equals("Tf")) {
if (stack.Count >= 2) {
ret[DA_FONT] = stack[stack.Count - 2];
ret[DA_SIZE] = float.Parse((String)stack[stack.Count - 1], NumberFormatInfo.InvariantInfo);
}
}
else if (oper.Equals("g")) {
if (stack.Count >= 1) {
float gray = float.Parse((String)stack[stack.Count - 1], NumberFormatInfo.InvariantInfo);
if (gray != 0)
ret[DA_COLOR] = new GrayColor(gray);
}
}
else if (oper.Equals("rg")) {
if (stack.Count >= 3) {
float red = float.Parse((String)stack[stack.Count - 3], NumberFormatInfo.InvariantInfo);
float green = float.Parse((String)stack[stack.Count - 2], NumberFormatInfo.InvariantInfo);
float blue = float.Parse((String)stack[stack.Count - 1], NumberFormatInfo.InvariantInfo);
ret[DA_COLOR] = new Color(red, green, blue);
}
}
else if (oper.Equals("k")) {
if (stack.Count >= 4) {
float cyan = float.Parse((String)stack[stack.Count - 4], NumberFormatInfo.InvariantInfo);
float magenta = float.Parse((String)stack[stack.Count - 3], NumberFormatInfo.InvariantInfo);
float yellow = float.Parse((String)stack[stack.Count - 2], NumberFormatInfo.InvariantInfo);
float black = float.Parse((String)stack[stack.Count - 1], NumberFormatInfo.InvariantInfo);
ret[DA_COLOR] = new CMYKColor(cyan, magenta, yellow, black);
}
}
stack.Clear();
}
else
stack.Add(tk.StringValue);
}
return ret;
}
