public static void DrawGlyph(RendererContext context)
{
CFFTable cff = context.Font.Tables.CFF;
HmtxTable hmtx = context.Font.Tables.hmtx;
LongHorMetric hMetric = context.hMetric;
//Console.WriteLine("glyphId: " + glyphId);
bool hasWidth = false;
if (hmtx != null)
{
hMetric = hmtx.GetMetric(context.GlyphId);
if (cff.privateDict != null && hMetric != null)
{
//Console.WriteLine("advanceWidth: {0}", hMetric.advanceWidth);
//Console.WriteLine("cff.privateDict.defaultWidthX: {0}", cff.privateDict.defaultWidthX);
hasWidth = hMetric.advanceWidth != (ushort)cff.privateDict.defaultWidthX;
}
}
//Console.WriteLine();
//Console.WriteLine("glyphId: {0}", context.GlyphId);
//Console.WriteLine("Docode:\n{0}", CFFCharString.Decode(cff.charStrings[context.GlyphId]));
GraphicsPath path = cff.GetGlyph(context.GlyphId, hasWidth);
if (path == null)
{
if (hMetric != null)
{
context.X += hMetric.advanceWidth;
return;
}
context.X += 100;
return;
}
float imageSize = context.FontSize;
float unitsPerEm = context.Font.Tables.head.unitsPerEm;
float ascender = context.Font.Tables.hhea.ascender;
float descender = context.Font.Tables.hhea.descender;
float scale = imageSize / (ascender - descender);
//float scale = imageSize / unitsPerEm;
//scale *= 0.01f;
float baseLine = scale * ascender;
/*
* GraphicsPath path = new GraphicsPath(FillMode.Alternate);
* for (int i = 0; i < points.Count; i++) {
* PointF p = points[i];
* Console.WriteLine("Point: {0}", points[i]);
* p.X /= 10;
* p.Y /= 10;
* //p.X = -p.X;
* //p.Y = -p.Y;
* //p.X += 100;
* //p.Y += 100;
* points[i] = p;
* }
* Console.WriteLine();
*/
//path.AddLines(points.ToArray());
//path.Transform(new Matrix(scale, 0, 0, -scale, (float)Math.Round(x * scale), baseLine));
float x = context.DX + context.X * scale;
float y = context.DY + baseLine;
path.Transform(new Matrix(
scale, 0,
0, -scale,
x, y)
);
path.CloseFigure();
context.Graphics.FillPath(Brushes.Black, path);
//Console.WriteLine("hMetric.advanceWidth: {0}", hMetric.advanceWidth);
if (hMetric != null)
{
context.X += hMetric.advanceWidth;
return;
}
context.X += 100;
}
public void DrawText(Bitmap bitmap, string text, float x, float y)
{
if (UseInterpreter)
{
interpreter.ppem = FontSize;
InterpretPrep();
}
context.UseInterpreter = UseInterpreter;
context.UseBitmapGlyph = UseBitmapGlyph;
context.DX = x;
context.DY = y;
context.FontSize = FontSize;
context.Bitmap = bitmap;
context.Graphics = Graphics.FromImage(bitmap);
context.Graphics.SmoothingMode = SmoothingMode.HighQuality;
HmtxTable hmtx = font.Tables.hmtx;
GlyfTable glyf = font.Tables.glyf;
char highSurrogate = '\0';
int length = text.Length;
for (int i = 0; i < length; i++)
{
char charCode = text[i];
if (char.IsHighSurrogate(charCode))
{
highSurrogate = charCode;
continue;
}
int codePoint;
if (char.IsLowSurrogate(charCode))
{
codePoint = char.ConvertToUtf32(highSurrogate, charCode);
}
else
{
codePoint = charCode;
}
context.CodePoint = codePoint;
context.GlyphId = font.GetGlyphId(codePoint);
if (hmtx != null)
{
context.hMetric = hmtx.GetMetric(context.GlyphId);
}
if (glyf != null)
{
context.Glyph = glyf.GetGlyph(context.GlyphId);
if (context.Glyph == null)
{
//context.GlyphId = 0;
//context.Glyph = glyf.GetGlyph(0);
if (hmtx != null)
{
//context.hMetric = hmtx.GetMetric(0);
}
}
}
DrawGlyph(context);
}
context.Reset();
}