module Data.Text.ParagraphLayout.Internal.ParagraphExtents
    ( paragraphOriginX
    , paragraphOriginY
    , containRects
    , emptyRect
    )
where

import Data.Text.ParagraphLayout.Internal.Rect

paragraphOriginX :: (Num a) => a
paragraphOriginX = 0

paragraphOriginY :: (Num a) => a
paragraphOriginY = 0

emptyRect :: (Num a) => Rect a
emptyRect = Rect
    { x_origin = paragraphOriginX
    , y_origin = paragraphOriginY
    , x_size = 0
    , y_size = 0
    }

containRects :: (Ord a, Num a) => [Rect a] -> Rect a
containRects = foldr union emptyRect