Function filterRequiredMetrics

packages/fontaine/src/metrics.ts:15–24

(font: RequiredFontMetrics)

type RequiredFontMetrics = Pick<Font, 'ascent' | 'descent' | 'lineGap' | 'unitsPerEm' | 'xWidthAvg'> & { category?: string }

function filterRequiredMetrics(font: RequiredFontMetrics): FontFaceMetrics {
  return {
    ascent: font.ascent,
    descent: font.descent,
    lineGap: font.lineGap,
    unitsPerEm: font.unitsPerEm,
    xWidthAvg: font.xWidthAvg,
    category: font.category,
  }
}

/**
 * Retrieves the font metrics for a given font family from the metrics collection. Uses caching to avoid redundant calculations.