Typical values are: 0, 1, 1.5, 2. The default values is 0.
If @factor is non-zero, lines are placed so that
baseline2 = baseline1 + factor * height2
where height2 is the line height of the second line
(as determined by the font(s)). In this case, the spacing
set with [method@Pango.Layout.set_spacing] is ignored.
Sets a factor for line spacing.
Typical values are: 0, 1, 1.5, 2. The default values is 0.
If @factor is non-zero, lines are placed so that
baseline2 = baseline1 + factor * height2
where height2 is the line height of the second line (as determined by the font(s)). In this case, the spacing set with [method@Pango.Layout.set_spacing] is ignored.
If @factor is zero, spacing is applied as before.