public static FontMeasurement MeasureFont(this SKPaint paint, PaintingOptions options)
{
paint.GetFontMetrics(out var metrics);
var measurement = new FontMeasurement();
if (options.AverageCharWidth)
{
measurement.CharacterWidth = metrics.AverageCharacterWidth;
}
else
{
measurement.CharacterWidth = metrics.MaxCharacterWidth;
}
if (options.RecomendedFontHeight)
{
measurement.FontHeight = metrics.Descent - metrics.Ascent;
measurement.AboveBaseline = -metrics.Ascent;
measurement.BelowBaseline = metrics.Descent;
}
else
{
measurement.FontHeight = metrics.Bottom - metrics.Top;
measurement.AboveBaseline = -metrics.Top;
measurement.BelowBaseline = metrics.Bottom;
}
if (options.AboveBaselineOnly)
{
measurement.FontHeight = measurement.AboveBaseline;
measurement.BelowBaseline = 0;
}
Debug.Trace(@class, nameof(MeasureFont), "TextSize={0} => {1}", paint.TextSize, measurement);
return(measurement);
}
public static float BelowBaseline(this SKPaint paint, PaintingOptions options) => MeasureFont(paint, options).BelowBaseline;
public static float CharacterWidth(this SKPaint paint, PaintingOptions options) => MeasureFont(paint, options).CharacterWidth;
public static float FontHeight(this SKPaint paint, PaintingOptions options) => MeasureFont(paint, options).FontHeight;
