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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 +. diff --git a/Setup.lhs b/Setup.lhs new file mode 100644 --- /dev/null +++ b/Setup.lhs @@ -0,0 +1,3 @@ +#! /usr/bin/env runhaskell +> import Distribution.Simple +> main = defaultMain diff --git a/data/Dummy b/data/Dummy new file mode 100644 --- /dev/null +++ b/data/Dummy diff --git a/internetmarke.cabal b/internetmarke.cabal new file mode 100644 --- /dev/null +++ b/internetmarke.cabal @@ -0,0 +1,65 @@ +Name: internetmarke +Version: 0.0.1 +License: GPL +License-File: LICENSE +Author: Henning Thielemann +Maintainer: Henning Thielemann +Homepage: http://code.haskell.org/~thielema/internetmarke +Category: Console, Graphics +Synopsis: Shell command for constructing custom stamps for German Post +Description: + The German Post provides the service + where you can order, download and print stamps in a few seconds. + The stamps are shipped as a PDF + and consist of a unique Data Matrix Code and a picture to its left side. + However you can only choose from a restricted number of pictures. + Many people have asked for custom pictures on the stamps, + but the German Post does not like to be held responsible + for the pictures people may upload. + . + With this program you can rearrange the stamps you have downloaded, + in case you have a label sheet which is not provided by the Post company, + and you can add your own picture to the stamps. + What about unique stamps with the Haskell logo? + . + The construction of the new PDF file is done using the HPDF library. + However, for analysing the PDF shipped by the Post company, + the program invokes various other programs: + . + * pdfimages, pdftotext from xpdf-tools.rpm + . + * pnmtojpeg from netpbm.rpm + . + It's also good if you have @wget@ installed + for fetching the logo of the German Post. +Stability: Experimental +Tested-With: GHC==6.8.2 +Cabal-Version: >=1.2 +Build-Type: Simple + +-- We ship an empty dummy file in order to let Cabal create the data directory. +-- We do not ship a logo file for legal issues. +Data-files: + data/Dummy + +Flag splitBase + description: Choose the new smaller, split-up base package. + +Executable internetmarke + Build-Depends: + explicit-exception >= 0.0.1 && < 0.1, + mtl >= 1.1 && < 1.2, + process >= 1.0 && < 1.1, + parsec >= 2.1 && < 2.2, + HPDF >= 1.4 && < 1.5 + + If flag(splitBase) + Build-Depends: + base >= 3 + Else + Build-Depends: + base >= 1.0 && < 2 + + GHC-Options: -Wall + Hs-source-dirs: src + Main-Is: Main.hs diff --git a/src/Main.hs b/src/Main.hs new file mode 100644 --- /dev/null +++ b/src/Main.hs @@ -0,0 +1,447 @@ +{- | +For German Post customers: +Generate a sheet of stamps in an arbitrary format +using a PDF generated by the order formular at http://www.internetmarke.de/ . +-} +module Main (main) where + +import Graphics.PDF +import qualified Text.ParserCombinators.Parsec as Parser +import qualified Text.ParserCombinators.Parsec.Pos as SourcePos +import qualified Data.Traversable as Traversable +import Data.List (isSuffixOf, ) +import Data.Char (isSpace, ) +import Data.Maybe (mapMaybe, ) + +import System.Cmd (rawSystem, ) +import System.Process (runInteractiveProcess, waitForProcess, ) +import System.IO (hGetContents, ) + +import Paths_internetmarke (getDataDir, ) +import System.Console.GetOpt (getOpt, ArgOrder(..), OptDescr(..), ArgDescr(..), usageInfo, ) +import System.Environment (getArgs, getProgName, ) +import System.Exit (exitWith, ExitCode(..), ) + +import Control.Monad (liftM, liftM2, liftM3, when, guard, ) +import Control.Monad.Trans (lift, ) +import qualified Control.Monad.Exception.Synchronous as Exc +import Control.Exception (try, ) + + +data Picture = Picture { + picPath :: FilePath, + picWidth, picHeight :: PDFFloat, + picJPEG :: PDFReference PDFJpeg + } + +instance Show Picture where + show pic = "Picture " ++ picPath pic + +makePicture :: String -> JpegFile -> PDF Picture +makePicture name jpeg = + do ref <- createPDFJpeg jpeg + let (width, height) = jpegBounds jpeg + return $ Picture name width height ref + +data Drawing = Drawing { + drawPath :: FilePath, + drawObject :: Draw () + } + +instance Show Drawing where + show d = "Drawing " ++ drawPath d + + +data Stamp = Stamp { + price :: String, + date :: String, + code :: String, + domain :: String, + logo :: Drawing, + picture :: Maybe Picture, + barCode, matrixCode :: Picture + } + deriving Show + + +-- * generate PDF graphics + +stampToTextDraw :: Stamp -> Draw () +stampToTextDraw stamp = + let setText leftLower sp size font t = + drawText $ + do let f = PDFFont font size + setFont f + let (x:+y) = leftLower + textStart x y + charSpace sp +-- textScale $ 100*stretch +-- rise 10 + leading $ getHeight f + renderMode FillText + displayText (toPDFString t) + + (codeA, ' ':codeB) = splitAt 12 $ code stamp + + in do setText (430 :+ 175) 0 25 Helvetica_BoldOblique (price stamp) + setText (430 :+ 150) 0 22 Helvetica (date stamp) + setText (430 :+ 120) 2 25 Helvetica codeA + setText (430 :+ 90) 2 25 Helvetica codeB + setText (250 :+ 0) 0 25 Helvetica_Bold (domain stamp) + +stampToPictureDraw :: Stamp -> Draw () +stampToPictureDraw stamp = + (case picture stamp of + Nothing -> return () + Just pic -> + withNewContext $ + let templateWidth = 200 + templateHeight = 260 + kx = templateWidth / picWidth pic + ky = templateHeight / picHeight pic + k = min kx ky + width = k * picWidth pic + height = k * picHeight pic + posX = (templateWidth-width)/2 + posY = (templateHeight-height)/2 + in do applyMatrix $ translate (posX :+ posY) + applyMatrix $ scale k k + drawXObject (picJPEG pic)) >> + (withNewContext $ + do let k = 0.84 + applyMatrix $ translate (250:+60) + withNewContext $ applyMatrix (scale k k) >> + drawXObject (picJPEG (barCode stamp)) + applyMatrix $ translate (25:+0) + withNewContext $ applyMatrix (scale k k) >> + drawXObject (picJPEG (matrixCode stamp))) >> + (withNewContext $ + do applyMatrix $ translate (250:+230) + drawObject (logo stamp)) + + +stampToDraw :: Point -> Stamp -> Draw () +stampToDraw pos stamp = + withNewContext $ + do applyMatrix $ translate pos + stampToTextDraw stamp + stampToPictureDraw stamp + + +stampsToPDF :: [Point] -> [Stamp] -> PDF () +stampsToPDF positions = + mapM_ + (\stamps -> + do page <- addPage Nothing + drawWithPage page $ + applyMatrix (scale pdfUnit pdfUnit) >> + (sequence_ $ zipWith stampToDraw positions stamps)) . + sliceVert (length positions) + +-- Utility +sliceVert :: Int -> [a] -> [[a]] +sliceVert n = + map (take n) . takeWhile (not . null) . iterate (drop n) + +makeLayout :: (Int,PDFFloat,PDFFloat) -> (Int,PDFFloat,PDFFloat) -> [Point] +makeLayout (ny,sy,dy) (nx,sx,dx) = + do y <- take ny $ iterate (subtract dy) sy + x <- take nx $ iterate (dx+) sx + return (10*(x:+y)) + +layouts :: [(String, [Point])] +layouts = + ("Geha-Z54", makeLayout (7,252,38.1) (3,8,66)) : + ("Zweckform-4737", makeLayout (9,252,29.6) (3,8,66)) : + [] + +-- Utility +maybePrefixOf :: Eq a => [a] -> [a] -> Maybe [a] +maybePrefixOf (x:xs) (y:ys) = guard (x==y) >> maybePrefixOf xs ys +maybePrefixOf [] ys = Just ys +maybePrefixOf _ [] = Nothing + + +-- * parse PDF text + +parseSatisfyLine :: (Show tok) => + (tok -> Bool) -> Parser.GenParser tok st tok +parseSatisfyLine p = + Parser.tokenPrim + (\ln -> show ln) + (\pos _ln _lns -> SourcePos.incSourceLine pos 1) + (\ln -> if p ln then Just ln else Nothing) + +parseStamps :: + Parser.GenParser String st [Stamp] +parseStamps = + fmap concat $ + Parser.many1 $ + do textsA <- + Parser.many1 $ + do sprice <- parseSatisfyLine (isSuffixOf "EUR") + sdate <- parseSatisfyLine (const True) + parseSatisfyLine null + return (sprice, sdate) + textsB <- + Parser.count (length textsA) $ + do scode <- parseSatisfyLine (const True) + parseSatisfyLine null + return scode + textsC <- + Parser.count (length textsA) $ + do sdomain <- parseSatisfyLine (const True) + parseSatisfyLine null + return sdomain + return $ zipWith3 + (\(sprice, sdate) scode sdomain -> + Stamp + {price=sprice, date=sdate, code=scode, domain=sdomain, + picture=error "picture: not initialized", + barCode=error "bar: not initialized", + matrixCode=error "matrix: not initialized", + logo=error "logo: not initialized"}) + textsA textsB textsC + +-- * parse SVG logo + +{- +logo = + (\(p:ps) -> beginPath p >> addPolygonToPath ps >> fillPath) $ + map (10*) $ + map (subtract $ 187.091:+41.9979) $ + map (uncurry (:+)) $ + (187.091,41.9979) : (192.655,41.9979) : (187.036,47.6823) : (181.474,47.6823) : (187.091,41.9979) : [] +-} + +parseFixedPoint :: Parser.CharParser st Double +parseFixedPoint = + do integer <- Parser.many1 Parser.digit + Parser.char '.' + fraction <- Parser.many1 Parser.digit + return $ read $ integer ++ "." ++ fraction + +parsePoint :: Parser.CharParser st Point +parsePoint = + do x <- parseFixedPoint + Parser.char ',' + y <- parseFixedPoint + Parser.spaces + return $ x:+(-y) + +parsePolygon :: Parser.CharParser st (Draw ()) +parsePolygon = + do Parser.string "points=\"" + (p:ps) <- Parser.many1 $ + do p <- parsePoint + return (2.562571*p + (86.77773:+(-644.0665))) + Parser.string "\"" + return $ beginPath p >> addPolygonToPath ps >> fillPath + +parsePath :: Parser.CharParser st (Draw ()) +parsePath = + do Parser.string "d=\"" + path <- Parser.many1 $ + Parser.choice $ + (do Parser.char 'M' + Parser.spaces + liftM beginPath parsePoint) : + (do Parser.char 'z' + Parser.spaces + return closePath) : + (do Parser.char 'L' + Parser.spaces + liftM addLineToPath parsePoint) : + (do Parser.char 'C' + Parser.spaces + liftM3 addBezierCubic parsePoint parsePoint parsePoint) : + [] + Parser.string "\"" + return $ sequence_ path >> fillPath + +makeLogo :: String -> Drawing +makeLogo = + Drawing logoFileName . + (applyMatrix (scale 0.7 0.65) >>) . + (applyMatrix (translate ((-150.20595) :+ (748.88257))) >>) . + sequence_ . + mapMaybe (either (const Nothing) Just) . + map (Parser.parse (parsePolygon Parser.<|> parsePath) logoFileName) . + map (dropWhile isSpace) . + drop 92 . + lines + + +-- * load matrix codes + +showInt3 :: Int -> String +showInt3 n = + let str = show n + in replicate (3 - length str) '0' ++ str + + +exitCodeToException :: IO ExitCode -> Exc.ExceptionalT String IO () +exitCodeToException act = + Exc.ExceptionalT $ + fmap (\exit -> + case exit of + ExitFailure n -> Exc.Exception $ "command failed with code " ++ show n + ExitSuccess -> Exc.Success ()) act + +{- | +It would be better to load those images as PNG, +but HPDF currently does not support this. +-} +loadPPMasJPEG :: FilePath -> Exc.ExceptionalT String IO JpegFile +loadPPMasJPEG path = + do let jpegPath = path++".jpeg" +{- + exitCodeToException $ system $ + "pnmtojpeg -quality=100 -greyscale " + ++ path++".ppm >" ++ jpegPath +-} + (_inp,jpegHandle,_err,pid) <- + lift $ runInteractiveProcess "pnmtojpeg" + ["-quality=100", "-greyscale", path++".ppm"] + Nothing Nothing + lift $ hGetContents jpegHandle >>= writeFile jpegPath + exitCodeToException $ waitForProcess pid + + Exc.fromEitherT $ readJpegFile jpegPath + +loadMatrixCode :: Int -> Exc.ExceptionalT String IO (JpegFile,JpegFile) +loadMatrixCode n = + liftM2 (,) + (loadPPMasJPEG $ matrixCodePathPrefix ++ "-" ++ showInt3 (3*n)) + (loadPPMasJPEG $ matrixCodePathPrefix ++ "-" ++ showInt3 (3*n+1)) + + +-- * process shell arguments + +matrixCodePathPrefix :: FilePath +matrixCodePathPrefix = "/tmp/internetmarke" + +logoFileName :: FilePath +logoFileName = "Deutsche-Post-Logo.svg" + +-- factor from 1/10 millimeters to PDF unit +-- we need such a small unit, because Font sizes can only be set as integers +pdfUnit :: Double +pdfUnit = 0.283 + +-- 1/10 millimeters +a4width, a4height :: Double +a4width = 10000/4/sqrt(sqrt 2) +a4height = 10000/4*sqrt(sqrt 2) + + +data Flags = + Flags { + optHelp :: Bool, + optPicture :: Maybe FilePath, + optLayout :: String + } + +options :: [OptDescr (Flags -> Flags)] +options = + Option ['h'] ["help"] (NoArg (\ flags -> flags{optHelp = True})) "show options" : + Option ['p'] ["picture"] (ReqArg (\str flags -> flags{optPicture = Just str}) "PICTURE") "jpeg file for a custom PICTURE on the stamp" : + Option ['l'] ["layout"] (ReqArg (\str flags -> flags{optLayout = str}) "LAYOUT") "one of the predefined LAYOUTs" : + [] + + +-- * main + +main :: IO () +main = Exc.resolveT (\e -> putStr $ "Aborted: " ++ e ++ "\n") $ do + argv <- lift getArgs + let (opts, files, errors) = getOpt RequireOrder options argv + when (not (null errors)) $ Exc.throwT $ concat $ errors + let flags = foldr ($) + (Flags {optHelp = False, + optPicture = Nothing, + optLayout = "Geha-7x3"}) opts + programName <- lift getProgName + when (optHelp flags) + (lift $ + putStrLn + (usageInfo ("Usage: " ++ programName ++ " [OPTIONS] PDF-INPUT PDF-OUTPUT") options ++ + "\nAvailable layouts:\n" ++ + unlines (map fst layouts ++ ["custom-(numberY,startYmm,distanceYmm),(numberX,startXmm,distanceXmm)"])) >> + exitWith ExitSuccess) + + positions <- + case maybePrefixOf "custom-" (optLayout flags) of + Just customLayout -> + case reads $ "("++customLayout++")" of + [(desc,"")] -> return $ uncurry makeLayout desc + _ -> Exc.throwT $ + "custom layouts must be formatted like " ++ + "custom-(7,252,38),(3,8,66)" + Nothing -> + case lookup (optLayout flags) layouts of + Nothing -> + Exc.throwT $ + "unknown layout " ++ show (optLayout flags) ++ + ", choose one of " ++ show (map fst layouts) + Just layout -> return layout + + (pdfInput, pdfOutput) <- + case files of + [fileIn,fileOut] -> return (fileIn,fileOut) + _ -> Exc.throwT $ "two file names expected, but got: " ++ show files + + (_inp, pdfTextHandle, _err, pdfTextPID) <- + lift $ runInteractiveProcess "pdftotext" [pdfInput, "-"] Nothing Nothing + + stamps <- + Exc.mapExceptionT show $ + Exc.fromEitherT $ + liftM (Parser.parse parseStamps ("output of pdftotext " ++ show pdfInput) . lines) $ + hGetContents pdfTextHandle + + exitCodeToException $ + rawSystem "pdfimages" [pdfInput, matrixCodePathPrefix] + codeFiles <- mapM loadMatrixCode (zipWith const [0..] stamps) + + imageFile <- Traversable.mapM (Exc.fromEitherT . readJpegFile) $ optPicture flags + + dataDir <- lift getDataDir + let logoPath = dataDir ++ "/data/" ++ logoFileName + logoDrawing <- + liftM makeLogo $ + Exc.catchT + (do content <- Exc.mapExceptionT show $ + Exc.fromEitherT (try (readFile logoPath)) + when (null content) (Exc.throwT "Deutsche Post logo uninitialized") + return content) + (\msg -> + Exc.throwT $ + msg ++ + "\n\nDownload Deutsche Post Logo with\n" ++ + "wget -O " ++ logoPath ++ + " http://upload.wikimedia.org/wikipedia/de/4/42/Deutsche_Post-Logo.svg") + + let rect = PDFRect 0 0 (round $ a4width*pdfUnit) (round $ a4height*pdfUnit) + lift $ runPdf pdfOutput + (standardDocInfo { + author = toPDFString "Haskell Intermarke Creator", + compressed = False}) rect $ + do pic <- Traversable.sequence $ + liftM2 makePicture (optPicture flags) imageFile + codes <- sequence $ + zipWith + (\n (bar,matrix) -> + liftM2 (,) + (makePicture ("bar"++showInt3 n) bar) + (makePicture ("matrix"++showInt3 n) matrix)) + [0..] codeFiles + stampsToPDF positions $ zipWith + (\(bar,matrix) stamp -> + stamp{picture = pic, + barCode = bar, + matrixCode = matrix, + logo = logoDrawing}) + codes stamps + + exitCodeToException $ waitForProcess pdfTextPID