/// <summary>
/// Draws content on a page using colors created from a calibrated Lab colorspace.
/// </summary>
/// <param name="page">The page to draw to.</param>
private static void DrawLabColorSpace(PDFPage page)
{
PDFRgbColor black = new PDFRgbColor(0, 0, 0);
PDFBrush blackBrush = new PDFBrush(black);
//PDF4NET v5: PDFFont font = new PDFFont(PDFFontFace.Helvetica, 16);
PDFStandardFont font = new PDFStandardFont(PDFStandardFontFace.Helvetica, 16);
//PDF4NET v5: page.Canvas.DrawText("L*a*b* colorspace", font, null, blackBrush, 50, 50);
page.Canvas.DrawString("L*a*b* colorspace", font, blackBrush, 50, 50);
PDFLabColorSpace labCS = new PDFLabColorSpace();
PDFLabColor labClr1 = new PDFLabColor(labCS);
labClr1.L = 90;
labClr1.A = 20;
labClr1.B = -10;
PDFLabColor labClr2 = new PDFLabColor(labCS);
labClr2.L = 10;
labClr2.A = 70;
labClr2.B = -50;
PDFBrush brush = new PDFBrush(labClr1);
PDFPen pen = new PDFPen(labClr2, 5);
page.Canvas.DrawRoundRectangle(pen, brush, 50, 100, 400, 150, 20, 20);
}
private static void DrawColorsAndColorSpaces(PDFPage page, PDFFont titleFont, PDFFont sectionFont, Stream iccStream)
{
PDFBrush brush = new PDFBrush();
page.Canvas.DrawString("Colors and colorspaces", titleFont, brush, 20, 50);
page.Canvas.DrawString("DeviceRGB", sectionFont, brush, 20, 70);
PDFPen rgbPen = new PDFPen(PDFRgbColor.DarkRed, 4);
PDFBrush rgbBrush = new PDFBrush(PDFRgbColor.LightGoldenrodYellow);
page.Canvas.DrawRectangle(rgbPen, rgbBrush, 20, 85, 250, 100);
page.Canvas.DrawString("DeviceCMYK", sectionFont, brush, 340, 70);
PDFPen cmykPen = new PDFPen(new PDFCmykColor(1, 0.5, 0, 0.1), 4);
PDFBrush cmykBrush = new PDFBrush(new PDFCmykColor(0, 0.5, 0.43, 0));
page.Canvas.DrawRectangle(cmykPen, cmykBrush, 340, 85, 250, 100);
page.Canvas.DrawString("DeviceGray", sectionFont, brush, 20, 200);
PDFPen grayPen = new PDFPen(new PDFGrayColor(0.1), 4);
PDFBrush grayBrush = new PDFBrush(new PDFGrayColor(0.75));
page.Canvas.DrawRectangle(grayPen, grayBrush, 20, 215, 250, 100);
page.Canvas.DrawString("Indexed", sectionFont, brush, 340, 200);
PDFIndexedColorSpace indexedColorSpace = new PDFIndexedColorSpace();
indexedColorSpace.ColorCount = 2;
indexedColorSpace.BaseColorSpace = new PDFRgbColorSpace();
indexedColorSpace.ColorTable = new byte[] { 192, 0, 0, 0, 0, 128 };
PDFIndexedColor indexedColor0 = new PDFIndexedColor(indexedColorSpace);
indexedColor0.ColorIndex = 0;
PDFIndexedColor indexedColor1 = new PDFIndexedColor(indexedColorSpace);
indexedColor1.ColorIndex = 1;
PDFPen indexedPen = new PDFPen(indexedColor0, 4);
PDFBrush indexedBrush = new PDFBrush(indexedColor1);
page.Canvas.DrawRectangle(indexedPen, indexedBrush, 340, 215, 250, 100);
page.Canvas.DrawString("CalGray", sectionFont, brush, 20, 330);
PDFCalGrayColorSpace calGrayColorSpace = new PDFCalGrayColorSpace();
PDFCalGrayColor calGrayColor1 = new PDFCalGrayColor(calGrayColorSpace);
calGrayColor1.Gray = 0.6;
PDFCalGrayColor calGrayColor2 = new PDFCalGrayColor(calGrayColorSpace);
calGrayColor2.Gray = 0.2;
PDFPen calGrayPen = new PDFPen(calGrayColor1, 4);
PDFBrush calGrayBrush = new PDFBrush(calGrayColor2);
page.Canvas.DrawRectangle(calGrayPen, calGrayBrush, 20, 345, 250, 100);
page.Canvas.DrawString("CalRGB", sectionFont, brush, 340, 330);
PDFCalRgbColorSpace calRgbColorSpace = new PDFCalRgbColorSpace();
PDFCalRgbColor calRgbColor1 = new PDFCalRgbColor(calRgbColorSpace);
calRgbColor1.Red = 0.1;
calRgbColor1.Green = 0.5;
calRgbColor1.Blue = 0.25;
PDFCalRgbColor calRgbColor2 = new PDFCalRgbColor(calRgbColorSpace);
calRgbColor2.Red = 0.6;
calRgbColor2.Green = 0.1;
calRgbColor2.Blue = 0.9;
PDFPen calRgbPen = new PDFPen(calRgbColor1, 4);
PDFBrush calRgbBrush = new PDFBrush(calRgbColor2);
page.Canvas.DrawRectangle(calRgbPen, calRgbBrush, 340, 345, 250, 100);
page.Canvas.DrawString("L*a*b", sectionFont, brush, 20, 460);
PDFLabColorSpace labColorSpace = new PDFLabColorSpace();
PDFLabColor labColor1 = new PDFLabColor(labColorSpace);
labColor1.L = 90;
labColor1.A = -40;
labColor1.B = 120;
PDFLabColor labColor2 = new PDFLabColor(labColorSpace);
labColor2.L = 45;
labColor2.A = 90;
labColor2.B = -34;
PDFPen labPen = new PDFPen(labColor1, 4);
PDFBrush labBrush = new PDFBrush(labColor2);
page.Canvas.DrawRectangle(labPen, labBrush, 20, 475, 250, 100);
page.Canvas.DrawString("Icc", sectionFont, brush, 340, 460);
PDFIccColorSpace iccColorSpace = new PDFIccColorSpace();
byte[] iccData = new byte[iccStream.Length];
iccStream.Read(iccData, 0, iccData.Length);
iccColorSpace.IccProfile = iccData;
iccColorSpace.AlternateColorSpace = new PDFRgbColorSpace();
iccColorSpace.ColorComponents = 3;
PDFIccColor iccColor1 = new PDFIccColor(iccColorSpace);
iccColor1.ColorComponents = new double[] { 0.45, 0.1, 0.22 };
PDFIccColor iccColor2 = new PDFIccColor(iccColorSpace);
iccColor2.ColorComponents = new double[] { 0.21, 0.76, 0.31 };
PDFPen iccPen = new PDFPen(iccColor1, 4);
PDFBrush iccBrush = new PDFBrush(iccColor2);
page.Canvas.DrawRectangle(iccPen, iccBrush, 340, 475, 250, 100);
page.Canvas.DrawString("Separation", sectionFont, brush, 20, 590);
PDFExponentialFunction tintTransform = new PDFExponentialFunction();
tintTransform.Domain = new double[] { 0, 1 };
tintTransform.Range = new double[] { 0, 1, 0, 1, 0, 1, 0, 1 };
tintTransform.Exponent = 1;
tintTransform.C0 = new double[] { 0, 0, 0, 0 };
tintTransform.C1 = new double[] { 1, 0.5, 0, 0.1 };
PDFSeparationColorSpace separationColorSpace = new PDFSeparationColorSpace();
separationColorSpace.AlternateColorSpace = new PDFCmykColorSpace();
separationColorSpace.Colorant = "Custom Blue";
separationColorSpace.TintTransform = tintTransform;
PDFSeparationColor separationColor1 = new PDFSeparationColor(separationColorSpace);
separationColor1.Tint = 0.23;
PDFSeparationColor separationColor2 = new PDFSeparationColor(separationColorSpace);
separationColor2.Tint = 0.74;
PDFPen separationPen = new PDFPen(separationColor1, 4);
PDFBrush separationBrush = new PDFBrush(separationColor2);
page.Canvas.DrawRectangle(separationPen, separationBrush, 20, 605, 250, 100);
page.Canvas.DrawString("Pantone", sectionFont, brush, 340, 590);
PDFPen pantonePen = new PDFPen(PDFPantoneColor.ReflexBlue, 4);
PDFBrush pantoneBrush = new PDFBrush(PDFPantoneColor.RhodamineRed);
page.Canvas.DrawRectangle(pantonePen, pantoneBrush, 340, 605, 250, 100);
page.Canvas.CompressAndClose();
}
