-- |
--
-- Positions and distances are represented as 32-bit integers. Their unit must
-- be defined by the caller, who must calculate the desired dimensions of the
-- EM square of the input font and set them using
-- `Data.Text.Glyphize.optionScale`.
--
-- For example, if @1em = 20px@, if the output pixels are square, and if the
-- output coordinates are in 1/64ths of a pixel, you should set the scale to
-- @`Just` (1280, 1280)@.
--
-- X coordinates increase from left to right.
--
-- Y coordinates increase from bottom to top.
module Data.Text.ParagraphLayout
    (Fragment(Fragment, fragmentPen, fragmentRect, fragmentGlyphs)
    ,LineHeight(Absolute, Normal)
    ,PageContinuity(Break, Continue)
    ,PageOptions
        (PageOptions
        ,pageCurrentHeight
        ,pageNextHeight
        ,pageOrphans
        ,pageWidows
        )
    ,Paragraph(Paragraph)
    ,ParagraphLayout(ParagraphLayout, paragraphRect, spanLayouts)
    ,ParagraphOptions
        (ParagraphOptions
        ,paragraphFont
        ,paragraphLineHeight
        ,paragraphMaxWidth
        )
    ,Span(Span, spanLength, spanOptions)
    ,SpanLayout(SpanLayout)
    ,SpanOptions(SpanOptions, spanLanguage)
    ,layoutPlain
    ,paginate
    )
where

import Data.Text.ParagraphLayout.Internal.Fragment
import Data.Text.ParagraphLayout.Internal.LineHeight
import Data.Text.ParagraphLayout.Internal.LinePagination
import Data.Text.ParagraphLayout.Internal.Paginable
import Data.Text.ParagraphLayout.Internal.Paragraph
import Data.Text.ParagraphLayout.Internal.ParagraphLayout
import Data.Text.ParagraphLayout.Internal.Plain
import Data.Text.ParagraphLayout.Internal.Span