public void CreatePDF(Stream stream)
{
// Test string using EUDC codes and two regular chars (& and !): 0xE620 0xE621 0xE622 0xE624 & 0xE623 !
const string tstr = "&!";
// Set up:
var doc = new GcPdfDocument();
var page = doc.NewPage();
var g = page.Graphics;
var tf = new TextFormat()
{
FontSize = 20
};
var rc = Common.Util.AddNote(
"This sample demonstrates how to render private use Unicode characters (PUA) with custom EUDC fonts (.tte).\n" +
"A GrapeCity.Documents.Text.Font can be created from an EUDC .tte file, " +
"and linked to one or more fonts using Font.AddEudcFont() method.",
page);
const float dy = 36;
var ip = new PointF(rc.X, rc.Bottom + dy / 2);
// Use FontCollection to allow fetching fonts by family names:
var fc = new FontCollection();
// Assign the font collection to the graphics so that MeasureString/DrawString
// methods on the graphics can find fallback fonts:
g.FontCollection = fc;
// Register some regular fonts with the FontCollection:
fc.RegisterFont(Path.Combine("Resources", "Fonts", "arial.ttf"));
fc.RegisterFont(Path.Combine("Resources", "Fonts", "times.ttf"));
fc.RegisterFont(Path.Combine("Resources", "Fonts", "yumin.ttf"));
fc.RegisterFont(Path.Combine("Resources", "Fonts", "msgothic.ttc"));
fc.RegisterFont(Path.Combine("Resources", "Fonts", "YuGothR.ttc"));
// Tell the font collection to use Yu Mincho as a fallback:
fc.AppendFallbackFonts(fc.FindFamilyName("Yu Mincho"));
// Using Arial font renders the test string as empty rectangles, as suitable glyphs are not present in Arial:
tf.Font = fc.FindFamilyName("Arial", false, false);
g.DrawString($"Arial: {tstr} (no EUDC font has been linked yet)", tf, ip);
ip.Y += dy;
// Load two custome EUDC fonts:
var eudcF0 = Font.FromFile(Path.Combine("Resources", "Fonts", "Eudc0.tte"));
var eudcF1 = Font.FromFile(Path.Combine("Resources", "Fonts", "Eudc1.tte"));
// Link one EUDC font to Arial - now in strings rendered with Arial, EUDC chars will be looked up in this font:
var font = fc.FindFamilyName("Arial");
font.AddEudcFont(eudcF0);
// Ditto for Yu Mincho font:
font = fc.FindFamilyName("Yu Mincho");
font.AddEudcFont(eudcF0);
// Link another EUDC font to Yu Gothic:
font = fc.FindFamilyName("Yu Gothic");
font.AddEudcFont(eudcF1);
// Render strings with EUDC chars using fonts to which our custom EUDC font is linked:
tf.Font = fc.FindFamilyName("Arial", false, false);
g.DrawString($"Arial, linked with Eudc0.tte: {tstr}", tf, ip);
ip.Y += dy;
tf.Font = fc.FindFileName("times.ttf");
g.DrawString($"Times, fallback via Yu Mincho: {tstr}", tf, ip);
ip.Y += dy;
tf.Font = fc.FindFamilyName("MS Gothic");
g.DrawString($"MS Gothic, fallback via Yu Mincho: {tstr}", tf, ip);
ip.Y += dy;
tf.Font = fc.FindFamilyName("Yu Gothic");
g.DrawString($"Yu Gothic, linked with Eudc1.tte: {tstr}", tf, ip);
ip.Y += dy;
// FontCollection adds some services (like font lookup by family name),
// but EUDC fonts can be linked to fonts that are not in a collection:
font = Font.FromFile(Path.Combine("Resources", "Fonts", "Gabriola.ttf"));
font.AddEudcFont(eudcF0);
tf.Font = font;
g.DrawString($"Gabriola Font, linked with Eudc0.tte: {tstr}", tf, ip);
ip.Y += dy;
// Done:
doc.Save(stream);
}