Hey, everyone. Why `PaddingValues.calculateLeftPad...

# compose

[wwalkingg]

Hey, everyone.
Why PaddingValues.calculateLeftPadding need a LayoutDirection parameter.
I understand PaddingValues.calculateStartPadding need a LayoutDirection, but Left is left, why need LayoutDirection.

[Skaldebane]

I've always wondered the same thing, that always felt odd to me 😅

[maciejciemiega]

If padding values were stored in absolute values (like left and right) then calculateLeftPadding could just return left without looking at LayoutDirection.
But that’t not always the case. In fact the majority of cases you would use a version with relative paddings (represented by internal class PaddingValuesImpl) that stores values in start and end. When it’s asked to give you left padding it needs to know the layout direction to do the opposite translation.

[wwalkingg]

It makes sense. Thank you