getValue method
- TextStyleHtml tsh,
- {double baseValue,
- double scaleFactor}
Calculates value in logical pixel.
Implementation
double getValue(TextStyleHtml tsh, {double baseValue, double scaleFactor}) {
double value;
switch (unit) {
case CssLengthUnit.em:
baseValue ??= tsh.style.fontSize;
value = baseValue * number;
scaleFactor = 1;
break;
case CssLengthUnit.percentage:
if (baseValue == null) return null;
value = baseValue * number / 100;
scaleFactor = 1;
break;
case CssLengthUnit.pt:
value = number * 96 / 72;
break;
case CssLengthUnit.px:
value = number;
break;
}
if (value == null) return null;
if (scaleFactor != null) value *= scaleFactor;
return value;
}