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-rw-r--r--src/Xmobar.hs71
1 files changed, 38 insertions, 33 deletions
diff --git a/src/Xmobar.hs b/src/Xmobar.hs
index 022ffd8..6d113f8 100644
--- a/src/Xmobar.hs
+++ b/src/Xmobar.hs
@@ -2,7 +2,8 @@
-----------------------------------------------------------------------------
-- |
-- Module : Xmobar
--- Copyright : (c) Andrea Rossato
+-- Copyright : (c) 2011, 2012, 2013, 2014, 2015 Jose Antonio Ortega Ruiz
+-- (c) 2007 Andrea Rossato
-- License : BSD-style (see LICENSE)
--
-- Maintainer : Jose A. Ortega Ruiz <jao@gnu.org>
@@ -152,7 +153,8 @@ eventLoop tv xc@(XConf d r w fs is cfg) as signal = do
case typ of
Wakeup -> do
str <- updateString cfg tv
- xc' <- updateCache d w is (iconRoot cfg) str >>= \c -> return xc { iconS = c }
+ xc' <- updateCache d w is (iconRoot cfg) str >>=
+ \c -> return xc { iconS = c }
as' <- updateActions xc r str
runX xc' $ drawInWin r str
eventLoop tv xc' as' signal
@@ -211,8 +213,7 @@ eventLoop tv xc@(XConf d r w fs is cfg) as signal = do
(ocfg {position = OnScreen 1 o})
else
(ocfg {position = OnScreen (n+1) o}))
- o ->
- return (ocfg {position = OnScreen 1 o})
+ o -> return (ocfg {position = OnScreen 1 o})
action button x = do
mapM_ runAction $
@@ -232,23 +233,23 @@ startCommand sig (com,s,ss)
| alias com == "" = do var <- atomically $ newTVar is
atomically $ writeTVar var (s ++ ss)
return (Nothing,var)
- | otherwise = do var <- atomically $ newTVar is
- let cb str = atomically $ writeTVar var (s ++ str ++ ss)
- h <- forkIO $ start com cb
- _ <- forkIO $ trigger com
- $ maybe (return ()) (atomically . putTMVar sig)
- return (Just h,var)
+ | otherwise = do var <- atomically $ newTVar is
+ let cb str = atomically $ writeTVar var (s ++ str ++ ss)
+ h <- forkIO $ start com cb
+ _ <- forkIO $ trigger com $ maybe (return ())
+ (atomically . putTMVar sig)
+ return (Just h,var)
where is = s ++ "Updating..." ++ ss
-updateString :: Config -> TVar [String] ->
- IO [[(Widget, String, Maybe [Action])]]
+updateString :: Config -> TVar [String]
+ -> IO [[(Widget, String, Maybe [Action])]]
updateString conf v = do
s <- atomically $ readTVar v
let l:c:r:_ = s ++ repeat ""
io $ mapM (parseString conf) [l, c, r]
-updateActions :: XConf -> Rectangle -> [[(Widget, String, Maybe [Action])]] ->
- IO [([Action], Position, Position)]
+updateActions :: XConf -> Rectangle -> [[(Widget, String, Maybe [Action])]]
+ -> IO [([Action], Position, Position)]
updateActions conf (Rectangle _ _ wid _) ~[left,center,right] = do
let (d,fs) = (display &&& fontS) conf
strLn :: [(Widget, String, Maybe [Action])] -> IO [(Maybe [Action], Position, Position)]
@@ -258,18 +259,19 @@ updateActions conf (Rectangle _ _ wid _) ~[left,center,right] = do
getCoords (Icon s,_,a) = return (a, 0, fi $ iconW s)
partCoord off xs = map (\(a, x, x') -> (fromJust a, x, x')) $
filter (\(a, _,_) -> isJust a) $
- scanl (\(_,_,x') (a,_,w') -> (a, x', x' + w')) (Nothing, 0, off) xs
-
- totSLen = foldr (\(_,_,len) -> (+) len) 0
- remWidth xs = fi wid - totSLen xs
- offs = 1
- offset a xs = case a of
- C -> (remWidth xs + offs) `div` 2
- R -> remWidth xs
- L -> offs
-
- fmap concat $ mapM (\(a,xs) -> (\xs' -> partCoord (offset a xs') xs') <$> strLn xs) $
- zip [L,C,R] [left,center,right]
+ scanl (\(_,_,x') (a,_,w') -> (a, x', x' + w'))
+ (Nothing, 0, off)
+ xs
+ totSLen = foldr (\(_,_,len) -> (+) len) 0
+ remWidth xs = fi wid - totSLen xs
+ offs = 1
+ offset a xs = case a of
+ C -> (remWidth xs + offs) `div` 2
+ R -> remWidth xs
+ L -> offs
+ fmap concat $ mapM (\(a,xs) ->
+ (\xs' -> partCoord (offset a xs') xs') <$> strLn xs) $
+ zip [L,C,R] [left,center,right]
-- $print
@@ -277,11 +279,12 @@ updateActions conf (Rectangle _ _ wid _) ~[left,center,right] = do
drawInWin :: Rectangle -> [[(Widget, String, Maybe [Action])]] -> X ()
drawInWin wr@(Rectangle _ _ wid ht) ~[left,center,right] = do
r <- ask
- let (c,d) = (config &&& display) r
+ let (c,d) = (config &&& display) r
(w,fs) = (window &&& fontS ) r
- strLn = io . mapM getWidth
+ strLn = io . mapM getWidth
iconW i = maybe 0 Bitmap.width (lookup i $ iconS r)
- getWidth (Text s,cl,_) = textWidth d fs s >>= \tw -> return (Text s,cl,fi tw)
+ getWidth (Text s,cl,_) =
+ textWidth d fs s >>= \tw -> return (Text s,cl,fi tw)
getWidth (Icon s,cl,_) = return (Icon s,cl,fi $ iconW s)
p <- io $ createPixmap d w wid ht
@@ -299,12 +302,12 @@ drawInWin wr@(Rectangle _ _ wid ht) ~[left,center,right] = do
-- draw 1 pixel border if requested
io $ drawBorder (border c) (borderWidth c) d p gc bdcolor wid ht
-- copy the pixmap with the new string to the window
- io $ copyArea d p w gc 0 0 wid ht 0 0
+ io $ copyArea d p w gc 0 0 wid ht 0 0
-- free up everything (we do not want to leak memory!)
- io $ freeGC d gc
+ io $ freeGC d gc
io $ freePixmap d p
-- resync
- io $ sync d True
+ io $ sync d True
verticalOffset :: (Integral b, Integral a, MonadIO m) =>
a -> Widget -> XFont -> Config -> m b
@@ -342,5 +345,7 @@ printStrings dr gc fontst offs a sl@((s,c,l):xs) = do
valign <- verticalOffset ht s fontst conf
case s of
(Text t) -> io $ printString d dr fontst gc fc bc offset valign t alph
- (Icon p) -> io $ maybe (return ()) (drawBitmap d dr gc fc bc offset valign) (lookup p (iconS r))
+ (Icon p) -> io $ maybe (return ())
+ (drawBitmap d dr gc fc bc offset valign)
+ (lookup p (iconS r))
printStrings dr gc fontst (offs + l) a xs