~jaro/balkon

4415c30c05dab911c592dfcbcfed8d3b46b8d87c — Jaro 1 year, 6 months ago ba1e5a0
Test soft breaking on box spacing.
M test/Data/Text/ParagraphLayout/Rich/ParagraphData.hs => test/Data/Text/ParagraphLayout/Rich/ParagraphData.hs +20 -0
@@ 4,9 4,11 @@ module Data.Text.ParagraphLayout.Rich.ParagraphData
    , loremIpsumParagraph
    , mixedSizesParagraph
    , nestedBoxesParagraph
    , softBreakParagraph
    )
where

import Data.Int (Int32)
import Data.Text (pack)
import Data.Text.Glyphize (Direction (DirLTR, DirRTL), Font)



@@ 121,3 123,21 @@ nestedBoxesParagraph font = constructParagraph
    (pack "suffix")
    where
        t = tLTR { textFont = font, textLanguage = "en" }

softBreakParagraph :: Int32 -> Font -> ParagraphOptions -> Paragraph String
softBreakParagraph spacing font = constructParagraph
    (pack "prefix")
    (rootBox t
        [ text "text1" "Lorem "
        , text "text2" "ipsum "
        , box "box2" b t
            [ text "text3" "dolor "
            , text "text4" "sit "
            , text "text5" "amet,"
            ]
        ]
    )
    (pack "suffix")
    where
        b = b_ { boxSpacing = BoxSpacingLeftRight spacing spacing }
        t = tLTR { textFont = font, textLanguage = "en" }

M test/Data/Text/ParagraphLayout/RichSpec.hs => test/Data/Text/ParagraphLayout/RichSpec.hs +53 -0
@@ 1,5 1,7 @@
module Data.Text.ParagraphLayout.RichSpec (spec) where

import Data.Int (Int32)

import Test.Hspec
import System.FilePath ((</>))
import Data.Text.ParagraphLayout


@@ 7,9 9,14 @@ import Data.Text.ParagraphLayout.FontLoader
import Data.Text.ParagraphLayout.Internal.Paginable (paginateAll)
import Data.Text.ParagraphLayout.PrettyShow
import Data.Text.ParagraphLayout.PrettyShow.Golden
import Data.Text.ParagraphLayout.Rect
import Data.Text.ParagraphLayout.Rich
import Data.Text.ParagraphLayout.Rich.ParagraphData

fragmentRects :: ParagraphLayout d -> [(d, Rect Int32)]
fragmentRects p = map toItem $ paragraphFragments p
    where toItem (Fragment { fragmentUserData = d, fragmentRect = r }) = (d, r)

spec :: Spec
spec = do



@@ 46,6 53,52 @@ spec = do
                let result = layoutRich input
                result `shouldBeGolden` "hardBoxBreakLTR"

            it "breaks line early if box spacing does not fit" $ do
                let lineH = -1121
                let lineY n = lineH * (n - 1)
                let wordAdvancesWithSpace = [3134, 2954, 2659, 1332, 2601]
                let spaceAdvance = 231
                let wordW n = wordAdvancesWithSpace !! (n - 1)
                let wordW_ n = wordW n - spaceAdvance
                let originX = 0
                let wordX n =
                        originX + (sum $ take (n - 1) wordAdvancesWithSpace)
                let endX = originX + (sum wordAdvancesWithSpace)
                -- A paragraph exactly wide enough to fit the whole text.
                let opts = defaultParagraphOptions { paragraphMaxWidth = endX }
                -- Small spacing that should push one word onto the next line.
                let s = 5
                -- Large spacing that should push two words onto the next line.
                let s' = wordW 5 + spaceAdvance + 1
                let inputNoSpacing = softBreakParagraph 0 font opts
                let inputSmallSpacing = softBreakParagraph s font opts
                let inputLargeSpacing = softBreakParagraph s' font opts
                let resultNoSpacing = layoutRich inputNoSpacing
                let resultSmallSpacing = layoutRich inputSmallSpacing
                let resultLargeSpacing = layoutRich inputLargeSpacing
                fragmentRects resultNoSpacing `shouldBe`
                    [ ("text1", Rect (wordX 1) (lineY 1) (wordW 1) lineH)
                    , ("text2", Rect (wordX 2) (lineY 1) (wordW 2) lineH)
                    , ("text3", Rect (wordX 3) (lineY 1) (wordW 3) lineH)
                    , ("text4", Rect (wordX 4) (lineY 1) (wordW 4) lineH)
                    , ("text5", Rect (wordX 5) (lineY 1) (wordW 5) lineH)
                    ]
                fragmentRects resultSmallSpacing `shouldBe`
                    [ ("text1", Rect (wordX 1) (lineY 1) (wordW 1) lineH)
                    , ("text2", Rect (wordX 2) (lineY 1) (wordW 2) lineH)
                    , ("text3", Rect (wordX 3 + s) (lineY 1) (wordW 3) lineH)
                    , ("text4", Rect (wordX 4 + s) (lineY 1) (wordW_ 4) lineH)
                    , ("text5", Rect originX (lineY 2) (wordW 5) lineH)
                    ]
                fragmentRects resultLargeSpacing `shouldBe`
                    [ ("text1", Rect (wordX 1) (lineY 1) (wordW 1) lineH)
                    , ("text2", Rect (wordX 2) (lineY 1) (wordW 2) lineH)
                    , ("text3", Rect (wordX 3 + s') (lineY 1) (wordW_ 3) lineH)
                    , ("text4", Rect originX (lineY 2) (wordW 4) lineH)
                    , ("text5",
                        Rect (originX + wordW 4) (lineY 2) (wordW 5) lineH)
                    ]

        describe "with Arabic font" $ do
            font <- runIO $ loadFont arabicFont 0 testingOptions