summaryrefslogtreecommitdiffhomepage
path: root/src/Xmobar/Plugins/Monitors/Common/Output.hs
blob: 248f276fc1c19724439e04118e1c61bb5dd4c53e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
{-#LANGUAGE RecordWildCards#-}

------------------------------------------------------------------------------
-- |
-- Module: Xmobar.Plugins.Monitors.Strings
-- Copyright: (c) 2018, 2019, 2020 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
                                             , pShowPercentWithColors
                                             ) 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) => MonitorConfig -> 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) => MonitorConfig -> [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) => MonitorConfig -> Float -> m String
pShowPercentWithColors p f = fmap head $ pShowPercentsWithColors p [f]

pShowPercentBar :: (MonadIO m) => MonitorConfig -> Float -> Float -> m String
pShowPercentBar p@MonitorConfig{..} v x = do
  let len = min pBarWidth $ round (fromIntegral pBarWidth * x)
  s <- pColorizeString p v (take len $ cycle pBarFore)
  return $ s ++ take (pBarWidth - len) (cycle pBarBack)

pShowWithColors :: (Num a, Ord a, MonadIO m) => MonitorConfig -> (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) => MonitorConfig -> a -> String -> m String
pColorizeString p x s = do
    let col = pSetColor p s
        [ll,hh] = map fromIntegral $ sort [pLow p, pHigh p] -- consider high < low
    pure $ head $ [col pHighColor   | x > hh ] ++
                  [col pNormalColor | x > ll ] ++
                  [col pLowColor    | True]

pSetColor :: MonitorConfig -> String -> PSelector (Maybe String) -> String
pSetColor config str s =
    do let a = getPConfigValue config s
       case a of
            Nothing -> str
            Just c -> "<fc=" ++ c ++ ">" ++ str ++ "</fc>"

pShowWithPadding :: MonitorConfig -> String -> String
pShowWithPadding MonitorConfig {..} =
  padString pMinWidth pMaxWidth pPadChars pPadRight pMaxWidthEllipsis

pFloatToPercent :: MonitorConfig -> Float -> String
pFloatToPercent MonitorConfig{..} n = let p = showDigits 0 (n * 100)
                                          ps = if pUseSuffix then "%" else ""
                                      in padString pPpad pPpad pPadChars pPadRight "" 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 0 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 $
                "<fc=" ++ c ++ ">" ++ str ++ "</fc>"

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 c = bw < 1
      w = if c then length bf else bw
      len = min w $ round (fromIntegral w * x)
      bfs = if c then [bf !! max 0 (len - 1)] else take len $ cycle bf
  s <- colorizeString v bfs
  return $ s ++ if c then "" else 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