fonts/font_height_equalizer.g library

Constants

kAscentEmByFontFamily → const Map<String, double>

Ascent from the font's hhea table, in em. Flutter's line metrics use it.

kDescentEmByFontFamily → const Map<String, double>

Descent from the font's hhea table, in em, positive below the baseline.

kFontSizeAdjustExcludedFontFamilies → const Set<String>

Families with Latin ink that the size adjust skips: rounding unitsPerEm / scale would leave the valid range or change the size by more than 0.1% (docs/design/ADR_font_size_adjust.md in telosnex, D7).

kLatinInkAboveEmByFontFamily → const Map<String, double>

How far the Latin letter ink reaches above the baseline, in em: the largest over every weight and style.

kLatinInkBelowEmByFontFamily → const Map<String, double>

How far the Latin letter ink reaches below the baseline, in em, positive below it. Same families as kLatinInkAboveEmByFontFamily.

kRasterAveragePhraseCharacterAdvanceEmByFontFamily → const Map<String, double>

kRasterCapHeightEmByFontFamily → const Map<String, double>

kRasterLowercaseP60HeightEmByFontFamily → const Map<String, double>

kRasterPhraseHeightEmByFontFamily → const Map<String, double>

kRasterUppercaseMedianHeightEmByFontFamily → const Map<String, double>

kRasterVisualHeightEmByFontFamily → const Map<String, double>

kRasterXHeightEmByFontFamily → const Map<String, double>

kReferenceRasterAveragePhraseCharacterAdvanceEm → const double

kReferenceRasterCapHeightEm → const double

kReferenceRasterLowercaseP60HeightEm → const double

kReferenceRasterPhraseHeightEm → const double

kReferenceRasterUppercaseMedianHeightEm → const double

kReferenceRasterVisualHeightEm → const double

kReferenceRasterXHeightEm → const double

kReferenceVisualHeightFamily → const String

kVisualHeightAdvanceWeight → const double

kVisualHeightXWeight → const double

Functions

ascentEmForFontFamily(String? fontFamily) → double?

Ascent from the font's hhea table, in em, when known.

descentEmForFontFamily(String? fontFamily) → double?

Descent from the font's hhea table, in em, when known.

normalizeFontFamilyForFontMetrics(String fontFamily) → String

rasterAveragePhraseCharacterAdvanceEmForFontFamily(String? fontFamily) → double?

Average phrase character advance, in em, when known.

rasterCapHeightEmForFontFamily(String? fontFamily) → double?

Raster cap height for a font family, in em, when known.

rasterVisualHeightEmForFontFamily(String? fontFamily) → double?

The visual-height metric of the font file, in the em of the file.

rasterVisualHeightScaleForFontFamily(String? fontFamily) → double

Scale that makes the letters of the font file look as large as the reference font's at the same font size. 1.0 when unknown.

rasterXHeightEmForFontFamily(String? fontFamily) → double?

Raster x-height for a font family, in em, when known.

visualHeightScaleForFontFamily(String? fontFamily) → double

Scale for normal text-theme roles relative to the reference font.