public IEnumerable <RectangleF> GetBoundingRectsForGlyphs(TFont font, ForEach <TGlyph> glyphs, int nVariants)
{
var glyphArray = new TGlyph[nVariants];
glyphs.CopyTo(glyphArray);
var rects = new CGRect[nVariants];
font.CtFont.GetBoundingRects(CTFontOrientation.Horizontal, glyphArray, rects, nVariants);
return(rects.Select(rect => (RectangleF)rect));
}
public (IEnumerable <float> Advances, float Total) GetAdvancesForGlyphs(TFont font, ForEach <TGlyph> glyphs, int nGlyphs)
{
var glyphArray = new TGlyph[nGlyphs];
glyphs.CopyTo(glyphArray);
var advanceSizes = new CGSize[nGlyphs];
var combinedAdvance = font.CtFont.GetAdvancesForGlyphs(CTFontOrientation.Default, glyphArray, advanceSizes, nGlyphs);
return(advanceSizes.Select(advance => (float)advance.Width), (float)combinedAdvance);
}
public void DrawGlyphsAtPoints(ForEach <TGlyph> glyphs, TFont font, ForEach <PointF> points, Color?color)
{
DebugWriteLine(glyphs, points);
var cgPoints = points.Select(p => (CGPoint)p);
var cgArray = new RentedArray <CGPoint>(cgPoints.Count);
cgPoints.CopyTo(cgArray.Array);
var glyphArray = new RentedArray <TGlyph>(cgPoints.Count);
glyphs.CopyTo(glyphArray.Array);
var ctFont = font.CtFont;
if (color.HasValue)
{
CgContext.SetFillColor(color.Value.ToCgColor());
}
ctFont.DrawGlyphs(CgContext, glyphArray.Array, cgArray.Array);
cgArray.Return();
glyphArray.Return();
}