/// <summary>
/// Return glyph advance distances along the X axis to layout text
/// </summary>
/// <param name="text">Text to layout</param>
/// <returns>Advance distances for each glyph in pixel units</returns>
public MeasurementInfo GetMeasurementInfoForString(string text)
{
var layout = new GlyphLayout();
layout.Typeface = typeface;
var measure = layout.LayoutAndMeasureString(text.ToCharArray(), 0, text.Length, FontSizeInPoints);
var lineHeight = typeface.CalculateLineSpacing(LineSpacingChoice.TypoMetric) * (FontSizeInPixels / typeface.UnitsPerEm);
var glyphPositions = layout.ResultUnscaledGlyphPositions;
var advanceWidths = new float[glyphPositions.Count];
var scale = FontSizeInPixels / TotalHeight;
for (var i = 0; i < glyphPositions.Count; i++)
{
glyphPositions.GetGlyph(i, out var advanceW);
advanceWidths[i] = advanceW * (FontSizeInPixels / typeface.UnitsPerEm) * scale;
}
return(new MeasurementInfo
{
Ascender = measure.AscendingInPx,
Descender = measure.DescendingInPx,
AdvanceWidths = advanceWidths,
LineHeight = lineHeight
});
}
