module Data.Text.ParagraphLayout.Internal.ProtoFragment (ProtoFragment(..))
where

import Data.Int (Int32)
import Data.Text.Glyphize (Direction, GlyphInfo, GlyphPos)

-- | A box fragment positioned within an indeterminate line.
data ProtoFragment = ProtoFragment
    { direction :: Maybe Direction
    -- ^ Text direction, which is constant within a fragment.
    , offset :: Int32
    -- ^ Distance from the start of the line,
    -- depending on the text direction.
    , advance :: Int32
    -- ^ Total advance of glyphs in this fragment,
    -- depending on the text direction.
    , glyphs :: [(GlyphInfo, GlyphPos)]
    }