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7e1c7ea511
Add voice control via Reanimate.Voice. Include rtfd article. Former-commit-id: f80bb58031f6dfbb83bc8f188c17013afcb2dfd9
56 lines
1.8 KiB
Haskell
56 lines
1.8 KiB
Haskell
#!/usr/bin/env stack
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-- stack --resolver lts-15.04 runghc --package reanimate
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ApplicativeDo #-}
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module Main where
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import Control.Monad
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import qualified Data.Text as T
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import Reanimate
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import Reanimate.Voice
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import Reanimate.Builtin.Documentation
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import Graphics.SvgTree ( ElementRef(..) )
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transcript :: Transcript
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transcript =
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fakeTranscript
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"There is no audio\n\n\
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\for this transcript....\n\n\n\
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\Timings are fake,\n\n\
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\which is quite useful\n\n\
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\during development"
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main :: IO ()
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main = reanimate $ sceneAnimation $ do
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newSpriteSVG_ $ mkBackgroundPixel rtfdBackgroundColor
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waitOn $ forM_ (splitTranscript transcript) $ \(svg, tword) -> do
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highlighted <- newVar 0
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void $ newSprite $ do
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v <- unVar highlighted
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pure $ centerUsing (latex $ transcriptText transcript) $ masked
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(wordKey tword)
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v
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svg
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(withFillColor "grey" $ mkRect 1 1)
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(withFillColor "black" $ mkRect 1 1)
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fork $ do
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wait (wordStart tword)
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let dur = wordEnd tword - wordStart tword
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tweenVar highlighted dur $ \v -> fromToS v 1
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wait 2
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where
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wordKey tword =
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T.unpack (wordReference tword) ++ show (wordStartOffset tword)
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{-# INLINE masked #-}
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masked :: String -> Double -> SVG -> SVG -> SVG -> SVG
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masked key t maskSVG srcSVG dstSVG = mkGroup
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[ mkClipPath label $ removeGroups maskSVG
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, withClipPathRef (Ref label)
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$ translate (x - w / 2 + w * t) y (scaleToSize w screenHeight dstSVG)
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, withClipPathRef (Ref label)
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$ translate (x + w / 2 + w * t) y (scaleToSize w screenHeight srcSVG)
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]
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where
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label = "word-mask-" ++ key
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(x, y, w, _h) = boundingBox maskSVG
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