public IEnumerable <RectangleF> GetBoundingRectsForGlyphs(TFont font, IEnumerable <TGlyph> glyphs, int nVariants)
{
using var glyphArray = new Structures.RentedArray <TGlyph>(glyphs, nVariants);
var rects = new CGRect[nVariants];
font.CtFont.GetBoundingRects(CTFontOrientation.Horizontal, glyphArray.Result.Array, rects, nVariants);
return(rects.Select(rect => (RectangleF)rect));
}
public (IEnumerable <float> Advances, float Total) GetAdvancesForGlyphs
(TFont font, IEnumerable <TGlyph> glyphs, int nGlyphs)
{
using var glyphArray = new Structures.RentedArray <TGlyph>(glyphs, nGlyphs);
var advanceSizes = new CGSize[nGlyphs];
var combinedAdvance = font.CtFont.GetAdvancesForGlyphs
(CTFontOrientation.Default, glyphArray.Result.Array, advanceSizes, nGlyphs);
return(advanceSizes.Select(advance => (float)advance.Width), (float)combinedAdvance);
}
public void Draw(IGraphicsContext <TFont, TGlyph> context)
{
this.DrawBackground(context);
context.SaveState();
using var glyphs = new Structures.RentedArray <TGlyph>(Glyph);
using var positions = new Structures.RentedArray <PointF>(new PointF());
context.Translate(new PointF(Position.X, Position.Y - ShiftDown));
context.SetTextPosition(new PointF());
context.DrawGlyphsAtPoints(glyphs.Result, Font, positions.Result, TextColor);
context.RestoreState();
}
