func (gc *GraphicContext) recalc() {
	gc.Current.Scale = gc.Current.FontSize * float64(gc.DPI) * (64.0 / 72.0)
}
func (gc *GraphicContext) recalc() {
	gc.Current.Scale = gc.Current.FontSize * float64(gc.DPI) * (64.0 / 72.0)
}
func ( gc * GraphicContext ) recalc ( ) { gc . Current . Scale = gc . Current . FontSize * float64 ( gc . DPI ) * ( 64.0 / 72.0 ) }
// recalc recalculates scale and bounds values from the font size, screen
// resolution and font metrics, and invalidates the glyph cache.
recalc recalculates scale and bounds values from the font size screen resolution and font metrics and invalidates the glyph cache .