{-# LANGUAGE RecordWildCards #-}
module Graphics.Layout.Box where

data Border n = Border {
    top :: n, bottom :: n, left :: n, right :: n
}
data Size n = Size {inline :: n, block :: n}

data PaddedBox n = PaddedBox {
    min :: Size n,
    max :: Size n,
    size :: Size n,
    padding :: Border n,
    border :: Border n,
    margin :: Border n
}
width' PaddedBox {..} = left margin + left border + left padding +
    inline size + right padding + right border + right margin
height' PaddedBox {..} = top margin + top border + top padding +
    block size + bottom padding + bottom border + bottom margin

data Length = Pixels Double | Percent Double | Auto | Preferred | Min