{-#LANGUAGE RecordWildCards#-} ------------------------------------------------------------------------------ -- | -- Module: Xmobar.Plugins.Monitors.Strings -- Copyright: (c) 2018, 2019 Jose Antonio Ortega Ruiz -- License: BSD3-style (see LICENSE) -- -- Maintainer: jao@gnu.org -- Stability: unstable -- Portability: portable -- Created: Sun Dec 02, 2018 04:25 -- -- -- Utilities for formatting monitor outputs -- ------------------------------------------------------------------------------ module Xmobar.Plugins.Monitors.Common.Output ( IconPattern , parseIconPattern , padString , colorizeString , showWithPadding , showWithColors , showWithColors' , showPercentWithColors , showPercentsWithColors , showPercentBar , showVerticalBar , showIconPattern , showLogBar , showLogVBar , showLogIconPattern , showWithUnits , takeDigits , showDigits , floatToPercent , parseFloat , parseInt , stringParser , pShowPercentsWithColors , pShowPercentBar , pShowVerticalBar , pShowIconPattern ) where import Data.Char import Data.List (intercalate, sort) import qualified Data.ByteString.Lazy.Char8 as B import Numeric import Control.Monad (zipWithM) import Control.Monad.IO.Class (MonadIO(..)) import Xmobar.Plugins.Monitors.Common.Types type IconPattern = Int -> String pShowVerticalBar :: (MonadIO m) => PureConfig -> Float -> Float -> m String pShowVerticalBar p v x = pColorizeString p v [convert $ 100 * x] where convert :: Float -> Char convert val | t <= 9600 = ' ' | t > 9608 = chr 9608 | otherwise = chr t where t = 9600 + (round val `div` 12) pShowPercentsWithColors :: (MonadIO m) => PureConfig -> [Float] -> m [String] pShowPercentsWithColors p fs = do let fstrs = map (pFloatToPercent p) fs temp = map (*100) fs zipWithM (pShowWithColors p . const) fstrs temp pShowPercentWithColors :: (MonadIO m) => PureConfig -> Float -> m String pShowPercentWithColors p f = fmap head $ pShowPercentsWithColors p [f] pShowPercentBar :: (MonadIO m) => PureConfig -> Float -> Float -> m String pShowPercentBar p@PureConfig{..} v x = do let bb = pBarBack bf = pBarFore bw = pBarWidth let len = min bw $ round (fromIntegral bw * x) s <- pColorizeString p v (take len $ cycle bf) return $ s ++ take (bw - len) (cycle bb) pShowWithColors :: (Num a, Ord a, MonadIO m) => PureConfig -> (a -> String) -> a -> m String pShowWithColors p f x = do let str = pShowWithPadding p (f x) pColorizeString p x str pColorizeString :: (Num a, Ord a, MonadIO m) => PureConfig -> a -> String -> m String pColorizeString p x s = do let h = pHigh p l = pLow p let col = pSetColor p s [ll,hh] = map fromIntegral $ sort [l, h] -- consider high < low pure $ head $ [col pHighColor | x > hh ] ++ [col pNormalColor | x > ll ] ++ [col pLowColor | True] pSetColor :: PureConfig -> String -> PSelector (Maybe String) -> String pSetColor config str s = do let a = getPConfigValue config s case a of Nothing -> str Just c -> "" ++ str ++ "" pShowWithPadding :: PureConfig -> String -> String pShowWithPadding PureConfig{..} s = let mn = pMinWidth mx = pMaxWidth p = pPadChars pr = pPadRight ellipsis = pMaxWidthEllipsis in padString mn mx p pr ellipsis s pFloatToPercent :: PureConfig -> Float -> String pFloatToPercent PureConfig{..} n = let pad = pPpad pc = pPadChars pr = pPadRight up = pUseSuffix p = showDigits 0 (n * 100) ps = if up then "%" else "" in padString pad pad pc pr "" p ++ ps parseIconPattern :: String -> IconPattern parseIconPattern path = let spl = splitOnPercent path in \i -> intercalate (show i) spl where splitOnPercent [] = [[]] splitOnPercent ('%':'%':xs) = [] : splitOnPercent xs splitOnPercent (x:xs) = let rest = splitOnPercent xs in (x : head rest) : tail rest type Pos = (Int, Int) takeDigits :: Int -> Float -> Float takeDigits d n = fromIntegral (round (n * fact) :: Int) / fact where fact = 10 ^ d showDigits :: (RealFloat a) => Int -> a -> String showDigits d n = showFFloat (Just d) n "" showWithUnits :: Int -> Int -> Float -> String showWithUnits d n x | x < 0 = '-' : showWithUnits d n (-x) | n > 3 || x < 10^(d + 1) = show (round x :: Int) ++ units n | x <= 1024 = showDigits d (x/1024) ++ units (n+1) | otherwise = showWithUnits d (n+1) (x/1024) where units = (!!) ["B", "K", "M", "G", "T"] padString :: Int -> Int -> String -> Bool -> String -> String -> String padString mnw mxw pad pr ellipsis s = let len = length s rmin = if mnw <= 0 then 1 else mnw rmax = if mxw <= 0 then max len rmin else mxw (rmn, rmx) = if rmin <= rmax then (rmin, rmax) else (rmax, rmin) rlen = min (max rmn len) rmx in if rlen < len then take rlen s ++ ellipsis else let ps = take (rlen - len) (cycle pad) in if pr then s ++ ps else ps ++ s parseFloat :: String -> Float parseFloat s = case readFloat s of (v, _):_ -> v _ -> 0 parseInt :: String -> Int parseInt s = case readDec s of (v, _):_ -> v _ -> 0 floatToPercent :: Float -> Monitor String floatToPercent n = do pad <- getConfigValue ppad pc <- getConfigValue padChars pr <- getConfigValue padRight up <- getConfigValue useSuffix let p = showDigits 0 (n * 100) ps = if up then "%" else "" return $ padString pad pad pc pr "" p ++ ps stringParser :: Pos -> B.ByteString -> String stringParser (x,y) = B.unpack . li x . B.words . li y . B.lines where li i l | length l > i = l !! i | otherwise = B.empty setColor :: String -> Selector (Maybe String) -> Monitor String setColor str s = do a <- getConfigValue s case a of Nothing -> return str Just c -> return $ "" ++ str ++ "" showWithPadding :: String -> Monitor String showWithPadding s = do mn <- getConfigValue minWidth mx <- getConfigValue maxWidth p <- getConfigValue padChars pr <- getConfigValue padRight ellipsis <- getConfigValue maxWidthEllipsis return $ padString mn mx p pr ellipsis s colorizeString :: (Num a, Ord a) => a -> String -> Monitor String colorizeString x s = do h <- getConfigValue high l <- getConfigValue low let col = setColor s [ll,hh] = map fromIntegral $ sort [l, h] -- consider high < low head $ [col highColor | x > hh ] ++ [col normalColor | x > ll ] ++ [col lowColor | True] showWithColors :: (Num a, Ord a) => (a -> String) -> a -> Monitor String showWithColors f x = showWithPadding (f x) >>= colorizeString x showWithColors' :: (Num a, Ord a) => String -> a -> Monitor String showWithColors' str = showWithColors (const str) showPercentsWithColors :: [Float] -> Monitor [String] showPercentsWithColors fs = do fstrs <- mapM floatToPercent fs zipWithM (showWithColors . const) fstrs (map (*100) fs) showPercentWithColors :: Float -> Monitor String showPercentWithColors f = fmap head $ showPercentsWithColors [f] showPercentBar :: Float -> Float -> Monitor String showPercentBar v x = do bb <- getConfigValue barBack bf <- getConfigValue barFore bw <- getConfigValue barWidth let len = min bw $ round (fromIntegral bw * x) s <- colorizeString v (take len $ cycle bf) return $ s ++ take (bw - len) (cycle bb) showIconPattern :: Maybe IconPattern -> Float -> Monitor String showIconPattern Nothing _ = return "" showIconPattern (Just str) x = return $ str $ convert $ 100 * x where convert val | t <= 0 = 0 | t > 8 = 8 | otherwise = t where t = round val `div` 12 pShowIconPattern :: Maybe IconPattern -> Float -> IO String pShowIconPattern Nothing _ = return "" pShowIconPattern (Just str) x = return $ str $ convert $ 100 * x where convert val | t <= 0 = 0 | t > 8 = 8 | otherwise = t where t = round val `div` 12 showVerticalBar :: Float -> Float -> Monitor String showVerticalBar v x = colorizeString v [convert $ 100 * x] where convert :: Float -> Char convert val | t <= 9600 = ' ' | t > 9608 = chr 9608 | otherwise = chr t where t = 9600 + (round val `div` 12) logScaling :: Float -> Float -> Monitor Float logScaling f v = do h <- fromIntegral `fmap` getConfigValue high l <- fromIntegral `fmap` getConfigValue low bw <- fromIntegral `fmap` getConfigValue barWidth let [ll, hh] = sort [l, h] scaled x | x == 0.0 = 0 | x <= ll = 1 / bw | otherwise = f + logBase 2 (x / hh) / bw return $ scaled v showLogBar :: Float -> Float -> Monitor String showLogBar f v = logScaling f v >>= showPercentBar v showLogVBar :: Float -> Float -> Monitor String showLogVBar f v = logScaling f v >>= showVerticalBar v showLogIconPattern :: Maybe IconPattern -> Float -> Float -> Monitor String showLogIconPattern str f v = logScaling f v >>= showIconPattern str