sscan (empty) → 0.1
raw patch · 12 files changed
+1499/−0 lines, 12 filesdep +asyncdep +basedep +bricksetup-changed
Dependencies added: async, base, brick, directory, filepath, microlens, microlens-th, process, temporary, text, time, vty
Files
- Brick/Widgets/DefnList.hs +62/−0
- CHANGELOG +5/−0
- LICENSE +674/−0
- Main.hs +223/−0
- Presets.hs +108/−0
- README.md +71/−0
- Setup.hs +2/−0
- Types/Preset.hs +32/−0
- Types/State.hs +135/−0
- UI.hs +140/−0
- debian/changelog +5/−0
- sscan.cabal +42/−0
+ Brick/Widgets/DefnList.hs view
@@ -0,0 +1,62 @@+{-++sscan --- text UI for scanning with SANE++Copyright (C) 2017 Sean Whitton++This file is part of sscan.++sscan is free software: you can redistribute it and/or modify+it under the terms of the GNU General Public License as published by+the Free Software Foundation, either version 3 of the License, or+(at your option) any later version.++sscan is distributed in the hope that it will be useful,+but WITHOUT ANY WARRANTY; without even the implied warranty of+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+GNU General Public License for more details.++You should have received a copy of the GNU General Public License+along with sscan. If not, see <http://www.gnu.org/licenses/>.++-}++{-# LANGUAGE OverloadedStrings #-}++module Brick.Widgets.DefnList (defnList, Align(..)) where++import Data.Monoid+import qualified Data.Text as T+import qualified Graphics.Vty as V++import Brick.Markup (markup)+import Brick.Types+import Brick.Widgets.Core+import Data.Text.Markup ((@@))++data Align = AlignLeft | AlignRight+ deriving (Eq)++defnList :: Align -> Maybe V.Attr -> [(String, String)] -> Widget ()+defnList align attr defns = vBox $ line <$> defns+ where+ line (label, content) = markup $+ (T.pack label @@ labelAttr) <> (T.pack sep @@ V.defAttr)+ <> (T.pack (gap label content) @@ V.defAttr)+ <> (T.pack content @@ V.defAttr)++ gap x y+ | align == AlignRight =+ take (maxWidth - length x - length y - length sep) $+ repeat ' '+ | align == AlignLeft =+ take (maxLabelWidth - length x) $+ repeat ' '+ gap _ _ = " "++ maxWidth = maximum $+ map (\(x,y) -> length sep + length x + length y) defns+ maxLabelWidth = maximum $ map (\(x,_) -> length x) defns+ sep = if align == AlignRight then ": " else ": "++ labelAttr = maybe V.defAttr id attr
+ CHANGELOG view
@@ -0,0 +1,5 @@+sscan (0.1) unstable; urgency=medium++ * Initial public release.++ -- Sean Whitton <spwhitton@spwhitton.name> Sun, 12 Mar 2017 16:55:46 -0700
+ LICENSE view
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It is safest+to attach them to the start of each source file to most effectively+state the exclusion of warranty; and each file should have at least+the "copyright" line and a pointer to where the full notice is found.++ <one line to give the program's name and a brief idea of what it does.>+ Copyright (C) <year> <name of author>++ This program is free software: you can redistribute it and/or modify+ it under the terms of the GNU General Public License as published by+ the Free Software Foundation, either version 3 of the License, or+ (at your option) any later version.++ This program is distributed in the hope that it will be useful,+ but WITHOUT ANY WARRANTY; without even the implied warranty of+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+ GNU General Public License for more details.++ You should have received a copy of the GNU General Public License+ along with this program. If not, see <http://www.gnu.org/licenses/>.++Also add information on how to contact you by electronic and paper mail.++ If the program does terminal interaction, make it output a short+notice like this when it starts in an interactive mode:++ <program> Copyright (C) <year> <name of author>+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.+ This is free software, and you are welcome to redistribute it+ under certain conditions; type `show c' for details.++The hypothetical commands `show w' and `show c' should show the appropriate+parts of the General Public License. Of course, your program's commands+might be different; for a GUI interface, you would use an "about box".++ You should also get your employer (if you work as a programmer) or school,+if any, to sign a "copyright disclaimer" for the program, if necessary.+For more information on this, and how to apply and follow the GNU GPL, see+<http://www.gnu.org/licenses/>.++ The GNU General Public License does not permit incorporating your program+into proprietary programs. If your program is a subroutine library, you+may consider it more useful to permit linking proprietary applications with+the library. If this is what you want to do, use the GNU Lesser General+Public License instead of this License. But first, please read+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+ Main.hs view
@@ -0,0 +1,223 @@+{-++sscan --- text UI for scanning with SANE++Copyright (C) 2017 Sean Whitton++This file is part of sscan.++sscan is free software: you can redistribute it and/or modify+it under the terms of the GNU General Public License as published by+the Free Software Foundation, either version 3 of the License, or+(at your option) any later version.++sscan is distributed in the hope that it will be useful,+but WITHOUT ANY WARRANTY; without even the implied warranty of+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+GNU General Public License for more details.++You should have received a copy of the GNU General Public License+along with sscan. If not, see <http://www.gnu.org/licenses/>.++-}++{-# LANGUAGE OverloadedStrings #-}++import Control.Concurrent.Async (concurrently_)+import Control.Monad (unless, void, when)+import Data.Time.Clock.POSIX (getPOSIXTime, posixSecondsToUTCTime)+import Data.Time.Format (defaultTimeLocale, formatTime,+ iso8601DateFormat)+import Lens.Micro ((^.))+import System.Directory (getHomeDirectory, removeFile,+ renamePath, withCurrentDirectory)+import System.Exit (ExitCode (..))+import System.FilePath ((<.>), (</>))+import System.IO (IOMode (WriteMode), hClose,+ hGetContents, hPutStr, openFile,+ withBinaryFile, withFile)+import System.IO.Temp (withSystemTempDirectory)+import System.Process++import Types.State+import UI++processScanSessDir :: St -> FilePath -> IO ()+processScanSessDir st dir = withCurrentDirectory dir $ do+ posix <- getPOSIXTime+ let stamp = show (round posix :: Int)+ logH <- openFile (logFile stamp) WriteMode -- TODO maybe AppendMode?+ void $ case st^.stOutFormat of+ PDF -> do+ -- 1. convert tiff->PDF+ void $ createProcessWait_ "convert"+ (proc "convert" (allPages ++ ["temp.pdf"]))+ -- 2. set metadata with pdftk+ renamePath (dir </> "temp.pdf") (dir </> "temp2.pdf")+ writeFile "metadata" (metadata posix)+ void $ createProcessWait_ "pdftk"+ (proc "pdftk"+ ["temp2.pdf", "update_info", "metadata", "output", "temp.pdf"])+ { std_in = NoStream+ , std_out = NoStream+ , std_err = UseHandle logH+ }+ -- 3. maybe ocrmypdf+ when (st^.stOCR) $ do+ renamePath (dir </> "temp.pdf") (dir </> "temp2.pdf")+ -- OCRmyPDF dies if stdout is not connected, so tell it+ -- to output to stdout+ withBinaryFile "temp.pdf" WriteMode $ \tempFile -> do+ (_, _, Just herr, p) <- createProcess_ "OCRmyPDF"+ -- we'd like to use --remove-background here, but then+ -- qpdf says that ocrmypdf's output is damaged.+ -- reported upstream+ (proc "ocrmypdf" ["-c", "-i", "-r", "temp2.pdf", "-"])+ { std_in = NoStream+ , std_out = UseHandle tempFile+ , std_err = CreatePipe+ }+ -- OCRmyPDF does not yet have a --quiet option, so we+ -- emulate the chronic(1) utility+ exitCode <- waitForProcess p+ unless (exitCode == ExitSuccess) $+ hGetContents herr >>= hPutStr logH+ hClose herr+ -- 4. qpdf (ocrmypdf invokes qpdf but it doesn't use+ -- --linearize, which shrinks the PDF, often substantially)+ void $ createProcessWait_ "qpdf"+ (proc "qpdf" ["--linearize", "temp.pdf", outFile stamp])+ { std_in = NoStream+ , std_out = NoStream+ , std_err = UseHandle logH+ }+ -- assume that only one page was scanned. Not clear how we+ -- can avoid this assumption when producing a PNG+ PNG -> void $ createProcessWait_ "convert"+ (proc "convert" ["page1" <.> "tiff", outFile stamp])+ { std_in = NoStream+ , std_out = NoStream+ , std_err = UseHandle logH+ }+ hClose logH+ -- clean up the log file if it's empty+ finalLog <- readFile (logFile stamp)+ when (null finalLog) $ removeFile (logFile stamp)+ where+ logFile stamp = (st^.stOutdir) </> stamp <.> "log"+ outFile stamp = (st^.stOutdir) </> stamp <.> outExt+ outExt = case st^.stOutFormat of+ PDF -> "pdf"+ PNG -> "png"+ allPages = map (\n -> "page" ++ show n <.> "tiff") [1..(getLatestPage st)]+ metadata posix = let date = formatTime+ defaultTimeLocale+ (iso8601DateFormat Nothing)+ (posixSecondsToUTCTime posix)+ in unlines [ "InfoBegin"+ , "InfoKey: Title"+ , "InfoValue: scan of " ++ date+ , "InfoBegin"+ , "InfoKey: Author"+ , "InfoValue: spw"+ ]++makeInitialState :: IO St+makeInitialState = do+ home <- getHomeDirectory+ papersize <- init <$> readFile "/etc/papersize"+ let paper = if papersize == "letter" then Letter else A4+ return St+ { _stScanSess = Nothing+ , _stOCR = True+ , _stColour = Greyscale+ , _stPaper = paper+ , _stDefaultPaper = paper+ , _stDPI = 300+ , _stOutFormat = PDF+ , _stOutdir = home </> "tmp"+ }++scanPage :: St -> FilePath -> IO Bool+scanPage st dir = withFile outF WriteMode $ \outH -> do+ exit <- createProcessWait_ "scanimage" (proc "scanimage" (scanimageArgs st))+ { std_in = NoStream+ , std_out = UseHandle outH+ , std_err = Inherit -- let the user see progress bar+ }+ case exit of+ ExitSuccess -> return True+ ExitFailure c -> do+ putStrLn $ "scanimage exited with exit code " ++ show c ++ "!"+ putStrLn "This might because sscan tried to use an option that your"+ putStrLn "scanner does not support. Please try another preset."+ putStrLn "Press any key to abort this scanning session..."+ void getChar+ return False+ where+ outF = dir </> "page" ++ (show $ getLatestPage st + 1) <.> "tiff"++scanimageArgs :: St -> [String]+scanimageArgs st =+ [ "-vp"+ , "--format=tiff"+ , "--resolution=" ++ show (st^.stDPI)+ , "--mode=" ++ case st^.stColour of+ Colour -> "Color"+ Greyscale -> "Gray"+ Lineart -> "Lineart"+ ] ++ case st^.stPaper of+ Auto -> ["--swcrop=yes"]+ _ -> [ "-x"+ , show $ case st^.stPaper of+ A4 -> 210 :: Double+ Letter -> 215.9 :: Double+ Photo -> 150 :: Double+ Auto -> 1 :: Double+ , "-y"+ , show $ case st^.stPaper of+ A4 -> 297 :: Double+ Letter -> 279.4 :: Double+ Photo -> 100 :: Double+ Auto -> 1 :: Double+ ]+-- other device-specific scanimage options the old script supported:+-- --swdespeck; --color-filter; --depth++-- TODO include usbreset.c as a cbit, and use FFI to optionally reset+-- the scanner's USB connection after a scan -- this is needed on some+-- scanners that I occasionally use++processCommand :: St -> IO ()+processCommand st = case st^.stScanSess of+ Nothing -> putStrLn "Waiting for OCR threads to complete..."+ >> return () -- quit sscan+ Just (ScanSess command _ maybeDir) -> case maybeDir of+ Nothing -> withSystemTempDirectory "sscan" $ \dir ->+ processCommand (setScanSessDir dir st)+ Just dir -> case command of+ Abort -> newSession+ NextPage -> scanPage st dir >>= \scanned ->+ if scanned+ then presentUI (incrementPages st)+ else newSession+ FinalPage -> scanPage st dir+ >> finaliseSession (incrementPages st) dir+ Finalise -> finaliseSession st dir+ where+ newSession = presentUI $ resetScanSess st+ finaliseSession st' dir =+ concurrently_ (processScanSessDir st' dir) newSession++presentUI :: St -> IO ()+presentUI st = runTheApp st >>= processCommand++main :: IO ()+main = makeInitialState >>= presentUI++-- | Create a process, wait for it to finish, don't close any+-- handles used by the CreateProcess record+createProcessWait_ :: String -> CreateProcess -> IO ExitCode+createProcessWait_ s c = do+ (_, _, _, p) <- createProcess_ s c+ waitForProcess p
+ Presets.hs view
@@ -0,0 +1,108 @@+{-++sscan --- text UI for scanning with SANE++Copyright (C) 2017 Sean Whitton++This file is part of sscan.++sscan is free software: you can redistribute it and/or modify+it under the terms of the GNU General Public License as published by+the Free Software Foundation, either version 3 of the License, or+(at your option) any later version.++sscan is distributed in the hope that it will be useful,+but WITHOUT ANY WARRANTY; without even the implied warranty of+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+GNU General Public License for more details.++You should have received a copy of the GNU General Public License+along with sscan. If not, see <http://www.gnu.org/licenses/>.++-}++{-# LANGUAGE OverloadedStrings #-}++module Presets (presets, lookupPreset) where++import Data.List (find)+import Lens.Micro ((^.))++import Types.Preset+import Types.State++presets :: [Preset]+presets = [ Preset 'H' "handwritten notes" handwrittenNotes+ , Preset 'T' "typewritten docs" typewrittenDocs+ , Preset 'C' "standard DPI colour PDF, full page" colourPDF+ , Preset 'I' "standard DPI colour PNG, full page" colourPNG+ , Preset 'A' "standard DPI colour PNG, autocropped" colourCroppedPNG+ , Preset 'B' "black and white PDF, full page" bnwPDF+ , Preset 'P' "high DPI 6x4 photo" photo+ ]++lookupPreset :: Char -> Maybe Preset+lookupPreset c = find (\(Preset k _ _) -> c == k) presets++handwrittenNotes :: St -> St+handwrittenNotes = \st -> st+ { _stOCR = False+ , _stColour = Greyscale+ , _stDPI = 75+ , _stPaper = st^.stDefaultPaper+ , _stOutFormat = PDF+ }++typewrittenDocs :: St -> St+typewrittenDocs = \st -> st+ { _stOCR = True+ , _stColour = Greyscale+ , _stDPI = 300+ , _stPaper = st^.stDefaultPaper+ , _stOutFormat = PDF+ }++colourPDF :: St -> St+colourPDF = \st -> st+ { _stOCR = False+ , _stColour = Colour+ , _stDPI = 300+ , _stPaper = st^.stDefaultPaper+ , _stOutFormat = PDF+ }++colourPNG :: St -> St+colourPNG = \st -> st+ { _stOCR = False+ , _stColour = Colour+ , _stDPI = 300+ , _stPaper = st^.stDefaultPaper+ , _stOutFormat = PNG+ }++colourCroppedPNG :: St -> St+colourCroppedPNG = \st -> st+ { _stOCR = False+ , _stColour = Colour+ , _stDPI = 300+ , _stPaper = Auto+ , _stOutFormat = PNG+ }++bnwPDF :: St -> St+bnwPDF = \st -> st+ { _stOCR = False+ , _stColour = Lineart+ , _stDPI = 150+ , _stPaper = st^.stDefaultPaper+ , _stOutFormat = PDF+ }++photo :: St -> St+photo = \st -> st+ { _stOCR = False+ , _stColour = Colour+ , _stDPI = 600+ , _stPaper = Photo+ , _stOutFormat = PNG+ }
+ README.md view
@@ -0,0 +1,71 @@+# sscan -- Sean's scanner++## Synopsis++sscan is a UI for scanning multi-page documents using the scanimage(1)+command and a flatbed scanner.++I wrote sscan because I often need to scan multi-page documents on my+GNU/Linux system, and I have only a flatbed scanner, without an ADF.++sscan was originally a crude Python script. Now it is a somewhat more+robust Haskell program, relying on the [Brick][] library.++[Brick]: https://github.com/jtdaugherty/brick/++## Screenshot++++## Installation++1. Ensure that your scanner has [SANE support][].+2. Install prerequisite utilities:+````+apt-get install ocrmypdf pdftk sane-utils haskell-stack imagemagick+````+3. Use [stack][] to build and install sscan:+````+stack --resolver=lts-8.2 install sscan+````++Note that stack will automatically download and install the various+Haskell dependencies of sscan -- unfortunately, these are not yet+likely to all be installable from your distribution's mirrors.++[SANE support]: http://www.sane-project.org/sane-supported-devices.html+[stack]: https://haskellstack.org/++## Configuration++sscan does not yet have a configuration file. If it did, this could+be used to configure the available presets, the default settings on+startup, and the output directory. Patches welcome.++## Usage++Open a terminal, run `sscan` and follow the on-screen instructions.+If you can't see all the key bindings, you will need to increase the+size of your terminal.++## Bugs/patches++By e-mail to `<spwhitton@spwhitton.name>`.++## License++Copyright (C) 2017 Sean Whitton++sscan is free software: you can redistribute it and/or modify it under+the terms of the GNU General Public License as published by the Free+Software Foundation, either version 3 of the License, or (at your+option) any later version.++sscan is distributed in the hope that it will be useful, but WITHOUT+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License+for more details.++You should have received a copy of the GNU General Public License+along with sscan. If not, see+[<http://www.gnu.org/licenses/>](http://www.gnu.org/licenses/).
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ Types/Preset.hs view
@@ -0,0 +1,32 @@+{-++sscan --- text UI for scanning with SANE++Copyright (C) 2017 Sean Whitton++This file is part of sscan.++sscan is free software: you can redistribute it and/or modify+it under the terms of the GNU General Public License as published by+the Free Software Foundation, either version 3 of the License, or+(at your option) any later version.++sscan is distributed in the hope that it will be useful,+but WITHOUT ANY WARRANTY; without even the implied warranty of+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+GNU General Public License for more details.++You should have received a copy of the GNU General Public License+along with sscan. If not, see <http://www.gnu.org/licenses/>.++-}++module Types.Preset where++import Types.State++type PresetToggleKey = Char+type PresetDesc = String+type PresetPreset = St -> St++data Preset = Preset PresetToggleKey PresetDesc PresetPreset
+ Types/State.hs view
@@ -0,0 +1,135 @@+{-++sscan --- text UI for scanning with SANE++Copyright (C) 2017 Sean Whitton++This file is part of sscan.++sscan is free software: you can redistribute it and/or modify+it under the terms of the GNU General Public License as published by+the Free Software Foundation, either version 3 of the License, or+(at your option) any later version.++sscan is distributed in the hope that it will be useful,+but WITHOUT ANY WARRANTY; without even the implied warranty of+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+GNU General Public License for more details.++You should have received a copy of the GNU General Public License+along with sscan. If not, see <http://www.gnu.org/licenses/>.++-}++{-# LANGUAGE TemplateHaskell #-}++module Types.State where++import Data.Maybe+import Lens.Micro ((&), (.~), (^.))+import Lens.Micro.TH (makeLenses)++-- | Whether to do colour, grey or b&w scans+data Colour = Lineart | Greyscale | Colour+ deriving (Eq, Show)++cycleColour :: Colour -> Colour+cycleColour Lineart = Greyscale+cycleColour Greyscale = Colour+cycleColour Colour = Lineart++-- | Paper size to scan (determines both scanning area and PDF page+-- size)+data Paper = A4 | Letter | Photo | Auto+ deriving (Eq, Show)++cyclePaper :: Paper -> Paper+cyclePaper A4 = Letter+cyclePaper Letter = Photo+cyclePaper Photo = Auto+cyclePaper Auto = A4++-- | DPI to scan+type DPI = Int++-- | Output format+data OutputFormat = PDF | PNG+ deriving (Eq, Show)++-- | An active scanning session+data ScanSess = ScanSess+ -- | An action requested by the user, that has not yet been+ -- fulfilled+ Command+ -- | The number of pages scanned so far in this scanning session+ Int+ -- | Temporary directory containing pages scanned in this scanning+ -- session, if any have been scanned, and the session is multi-page+ (Maybe FilePath)++-- | An sscan operation selected by the user in the UI+data Command+ -- | Scan an additional page, or the first page, of a multi-page+ -- scanning session.+ = NextPage+ -- | Scan the final page of a multi-page scanning session, or the+ -- first page of a single-page scanning session+ | FinalPage+ -- | End a multi-page scanning session without scanning anymore+ -- pages, i.e., consider the most recently scanned page the final+ -- page+ | Finalise+ -- | Abandon the current scanning session. Delete its tmpdir.+ | Abort++-- | Application state+data St =+ --+ St { _stScanSess :: Maybe ScanSess -- ^ Nothing indicates user+ -- wants to quit sscan+ , _stOCR :: Bool -- ^ whether to use OCRmyPDF+ , _stColour :: Colour+ , _stPaper :: Paper -- ^ currently selected paper size+ , _stDefaultPaper :: Paper -- ^ locale's default paper size+ , _stDPI :: DPI+ , _stOutFormat :: OutputFormat+ , _stOutdir :: FilePath -- ^ where to save final PDFs+ }++makeLenses ''St++ifScanSess :: St -> a -> a -> a+ifScanSess st a b = if isJust $ st^.stScanSess then a else b++-- | Update a state when there is no scanning session in progress (the+-- state should not be changed when some pages have already been+-- scanned)+updateSt :: St -> (St -> St) -> St+updateSt st f = ifScanSess st st (f st)++resetScanSess :: St -> St+resetScanSess st = st & stScanSess .~ Nothing++setScanSessDir :: FilePath -> St -> St+setScanSessDir dir st = case st^.stScanSess of+ Nothing -> st+ Just (ScanSess c p _) ->+ st & stScanSess .~ (Just $ ScanSess c p (Just dir))++setScanSessCommand :: Command -> St -> St+setScanSessCommand c st = case st^.stScanSess of+ Just (ScanSess _ p d) ->+ st & stScanSess .~ (Just $ ScanSess c p d)+ Nothing ->+ st & stScanSess .~ (Just $ ScanSess c 0 Nothing)++incrementPages :: St -> St+incrementPages st = case st^.stScanSess of+ Nothing -> st+ Just (ScanSess c p d) ->+ st & stScanSess .~ (Just $ ScanSess c (p+1) d)++getLatestPage :: St -> Int+getLatestPage st = case st^.stScanSess of+ Nothing -> 0+ Just (ScanSess _ p _ ) -> p
+ UI.hs view
@@ -0,0 +1,140 @@+{-++sscan --- text UI for scanning with SANE++Copyright (C) 2017 Sean Whitton++This file is part of sscan.++sscan is free software: you can redistribute it and/or modify+it under the terms of the GNU General Public License as published by+the Free Software Foundation, either version 3 of the License, or+(at your option) any later version.++sscan is distributed in the hope that it will be useful,+but WITHOUT ANY WARRANTY; without even the implied warranty of+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+GNU General Public License for more details.++You should have received a copy of the GNU General Public License+along with sscan. If not, see <http://www.gnu.org/licenses/>.++-}++module UI (runTheApp) where++import qualified Graphics.Vty as V+import Lens.Micro ((&), (.~), (^.))++import Brick.AttrMap+import Brick.Main+import Brick.Types+import Brick.Widgets.Border as B+import Brick.Widgets.Center as C+import Brick.Widgets.Core++import Brick.Widgets.DefnList+import Presets+import Types.Preset+import Types.State++drawUI :: St -> [Widget ()]+drawUI st = [ui]+ where+ ui = vBox [ hBorderWithLabel (str "[ Status ]")+ , vLimit 3 $ C.center $ status+ , hBorderWithLabel (str "[ Current settings ]")+ , vLimit 8 $ C.center $ settingsBox+ , hBorderWithLabel (str "[ Presets ]")+ , vLimit (2 + length presets) $ C.center $ presetsBox+ , hBorderWithLabel (str "[ Actions ]")+ , vLimit 6 $ C.center $ actionsBox+ ]+ status = str $ maybe+ "Ready to scan first page"+ (\(ScanSess _ p _) -> "Scanned " ++ show p ++ " pages")+ (st^.stScanSess)+ settingsBox = defnList AlignRight Nothing+ [ ("run OCRmyPDF", if st^.stOCR then "yes" else "no")+ , ("colour data", show $ st^.stColour)+ , ("page size", show $ st^.stPaper)+ , ("DPI", show $ st^.stDPI)+ , ("output format", show $ st^.stOutFormat)+ , ("output dir", st^.stOutdir)+ ]+ presetsBox = defnList AlignLeft+ (Just $ V.withStyle V.currentAttr V.bold)+ (map (\(Preset k desc _) -> ([k], desc)) presets)+ actionsBox = defnList AlignLeft+ (Just $ V.withStyle V.currentAttr V.bold) $+ (if st^.stOutFormat == PDF+ then (ifScanSess st+ [ ("SPC", "scan next page")+ , ("RET", "scan final page")+ , ("q", "declare most recent scanned page was the final page")+ , ("ESC", "abort/restart scanning this document")+ ]+ [ ("SPC", "scan first page of multi-page document")+ , ("RET", "scan single page document")+ , ("q", "quit sscan")+ ]+ )+ else [ ("SPC|RET", "scan page")+ , ("q", "quit sscan")+ ]+ )++handleQ :: St -> EventM () (Next St)+handleQ st = halt $ ifScanSess st+ (setScanSessCommand Finalise st)+ (resetScanSess st) -- misnomer: this causes sscan to exit++handleRET :: St -> EventM () (Next St)+handleRET st = halt $ setScanSessCommand FinalPage st++handleSPC :: St -> EventM () (Next St)+handleSPC st = halt $ setScanSessCommand+ (case st^.stOutFormat of+ PDF -> NextPage+ PNG -> FinalPage)+ st++handleESC :: St -> EventM () (Next St)+handleESC st = ifScanSess st+ (halt $ setScanSessCommand Abort st)+ (continue st)++handleHotKey :: St -> Char -> EventM () (Next St)+handleHotKey st 'q' = handleQ st+handleHotKey st ' ' = handleSPC st+handleHotKey st 'o' = continue $ updateSt st+ (\s -> s & stOCR .~ (not $ st^.stOCR))+handleHotKey st 'c' = continue $ updateSt st+ (\s -> s & stColour .~ (cycleColour $ st^.stColour))+handleHotKey st 'p' = continue $ updateSt st+ (\s -> s & stPaper .~ (cyclePaper $ st^.stPaper))+handleHotKey st c = continue $ updateSt st $+ case lookupPreset c of+ Just (Preset _ _ f) -> f+ _ -> id++appEvent :: St -> BrickEvent () e -> EventM () (Next St)+appEvent st (VtyEvent e) =+ case e of+ V.EvKey (V.KEnter) [] -> handleRET st+ V.EvKey (V.KEsc) [] -> handleESC st+ V.EvKey (V.KChar c) [] -> handleHotKey st c+ _ -> continue st+appEvent st _ = continue st++theApp :: App St e ()+theApp =+ App { appDraw = drawUI+ , appChooseCursor = neverShowCursor+ , appHandleEvent = appEvent+ , appStartEvent = return+ , appAttrMap = const $ attrMap V.defAttr []+ }++runTheApp :: St -> IO St+runTheApp = defaultMain theApp
+ debian/changelog view
@@ -0,0 +1,5 @@+sscan (0.1) unstable; urgency=medium++ * Initial public release.++ -- Sean Whitton <spwhitton@spwhitton.name> Sun, 12 Mar 2017 16:55:46 -0700
+ sscan.cabal view
@@ -0,0 +1,42 @@+name: sscan+version: 0.1+synopsis: text UI for scanning with SANE+-- description: +license: GPL-3+license-file: LICENSE+author: Sean Whitton+maintainer: spwhitton@spwhitton.name+copyright: (C) 2017 Sean Whitton+category: Graphics+build-type: Simple+extra-source-files:+ CHANGELOG+ debian/changelog+ README.md+cabal-version: >=1.10++executable sscan+ main-is: Main.hs+ ghc-options: -threaded -Wall+ -- other-modules: + -- other-extensions: + build-depends: base >=4.9 && <4.10+ , brick >=0.17 && <0.18+ , directory >= 1.3 && <1.4+ , filepath >= 1.4 && <1.5+ , microlens >= 0.4 && <0.5+ , microlens-th >= 0.4 && <0.5+ , text >= 1.2 && <1.3+ , vty >= 5.15 && <5.16+ , temporary >= 1.2 && <1.3+ , process >= 1.4 && <1.5+ , time >=1.6 && <1.7+ , async >=2.1 && <2.2+ -- hs-source-dirs: + default-language: Haskell2010+ other-modules:+ Brick.Widgets.DefnList+ Presets+ Types.Preset+ Types.State+ UI