-- | Interface for laying out paragraphs of rich text.
--
-- The main entry point is the function `layoutRich`.
module Data.Text.ParagraphLayout.Rich
    -- * Input paragraph
    ( Paragraph (Paragraph)
    , constructParagraph
    , BoxSpacing (BoxSpacingLeftRight)
    , LineHeight (Absolute, Normal)
    , ParagraphOptions
    , defaultParagraphOptions
    -- ** Paragraph options
    -- | These are record selectors that can be used for reading
    -- as well as updating specific option fields.
    , paragraphLineHeight
    , paragraphMaxWidth
    -- NOTE: `paragraphFont` is only used by the legacy plain text interface,
    --       and is therefore not exported here.
    -- ** Content tree
    , RootNode (RootBox)
    , InnerNode (InlineBox, TextSequence)
    , Box (Box)
    , BoxOptions
    , defaultBoxOptions
    , TextOptions
    , defaultTextOptions
    -- ** Box options
    -- | These are record selectors that can be used for reading
    -- as well as updating specific option fields.
    , boxSpacing
    -- ** Text options
    -- | These are record selectors that can be used for reading
    -- as well as updating specific option fields.
    , textFont
    , textLineHeight
    , textLanguage
    , textDirection
    -- ** Verification
    , paragraphSpanBounds
    , paragraphSpanTexts
    , paragraphText
    -- * Output layout
    , layoutRich
    , ParagraphLayout (ParagraphLayout, paragraphRect, paragraphFragments)
    , Fragment
        ( Fragment
        , fragmentUserData
        , fragmentLine
        , fragmentAncestorBoxes
        , fragmentRect
        , fragmentPen
        , fragmentGlyphs
        )
    , fragmentSpacedRect
    , AncestorBox
        ( AncestorBox
        , boxUserData
        , boxLeftEdge
        , boxRightEdge
        , boxStartEdge
        , boxEndEdge
        )
    , BoxEdge (NoEdge, SpacedEdge)
    )
where

import Data.Text.ParagraphLayout.Internal.AncestorBox
import Data.Text.ParagraphLayout.Internal.BoxOptions
import Data.Text.ParagraphLayout.Internal.Fragment
import Data.Text.ParagraphLayout.Internal.LineHeight
import Data.Text.ParagraphLayout.Internal.ParagraphOptions
import Data.Text.ParagraphLayout.Internal.Rich
import Data.Text.ParagraphLayout.Internal.Rich.Paragraph
import Data.Text.ParagraphLayout.Internal.Rich.ParagraphLayout
import Data.Text.ParagraphLayout.Internal.TextOptions
import Data.Text.ParagraphLayout.Internal.Tree