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Diffstat (limited to 'src/lib/Xmobar/X11/XUtil.hs')
-rw-r--r-- | src/lib/Xmobar/X11/XUtil.hs | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/src/lib/Xmobar/X11/XUtil.hs b/src/lib/Xmobar/X11/XUtil.hs deleted file mode 100644 index 6e9eb2b..0000000 --- a/src/lib/Xmobar/X11/XUtil.hs +++ /dev/null @@ -1,129 +0,0 @@ -{-# LANGUAGE CPP #-} - ------------------------------------------------------------------------------ --- | --- Module : XUtil --- Copyright : (C) 2011, 2012, 2013, 2014, 2015, 2017, 2018 Jose Antonio Ortega Ruiz --- (C) 2007 Andrea Rossato --- License : BSD3 --- --- Maintainer : jao@gnu.org --- Stability : unstable --- Portability : unportable --- ------------------------------------------------------------------------------ - -module Xmobar.X11.XUtil - ( XFont(..) - , initFont - , initCoreFont - , initUtf8Font - , textExtents - , textWidth - ) where - -import Control.Exception (SomeException, handle) -import Data.List -import Foreign -import Graphics.X11.Xlib hiding (textExtents, textWidth) -import qualified Graphics.X11.Xlib as Xlib (textExtents, textWidth) -import Graphics.X11.Xlib.Extras -import System.Mem.Weak ( addFinalizer ) - -#if defined XFT -import Xmobar.X11.MinXft -import Graphics.X11.Xrender -#else -import System.IO(hPutStrLn, stderr) -#endif - -data XFont = Core FontStruct - | Utf8 FontSet -#ifdef XFT - | Xft [AXftFont] -#endif - --- | When initFont gets a font name that starts with 'xft:' it switchs --- to the Xft backend Example: 'xft:Sans-10' -initFont :: Display -> String -> IO XFont -initFont d s = - let xftPrefix = "xft:" in - if xftPrefix `isPrefixOf` s then -#ifdef XFT - fmap Xft $ initXftFont d s -#else - do - hPutStrLn stderr $ "Warning: Xmobar must be built with " - ++ "the with_xft flag to support font '" ++ s - ++ ".' Falling back on default." - initFont d miscFixedFont -#endif - else - fmap Utf8 $ initUtf8Font d s - -miscFixedFont :: String -miscFixedFont = "-misc-fixed-*-*-*-*-*-*-*-*-*-*-*-*" - --- | Given a fontname returns the font structure. If the font name is --- not valid the default font will be loaded and returned. -initCoreFont :: Display -> String -> IO FontStruct -initCoreFont d s = do - f <- handle fallBack getIt - addFinalizer f (freeFont d f) - return f - where getIt = loadQueryFont d s - fallBack :: SomeException -> IO FontStruct - fallBack = const $ loadQueryFont d miscFixedFont - --- | Given a fontname returns the font structure. If the font name is --- not valid the default font will be loaded and returned. -initUtf8Font :: Display -> String -> IO FontSet -initUtf8Font d s = do - (_,_,f) <- handle fallBack getIt - addFinalizer f (freeFontSet d f) - return f - where getIt = createFontSet d s - fallBack :: SomeException -> IO ([String], String, FontSet) - fallBack = const $ createFontSet d miscFixedFont - -#ifdef XFT -initXftFont :: Display -> String -> IO [AXftFont] -initXftFont d s = do - let fontNames = wordsBy (== ',') (drop 4 s) - mapM openFont fontNames - where - openFont fontName = do - f <- openAXftFont d (defaultScreenOfDisplay d) fontName - addFinalizer f (closeAXftFont d f) - return f - wordsBy p str = case dropWhile p str of - "" -> [] - str' -> w : wordsBy p str'' - where - (w, str'') = break p str' -#endif - -textWidth :: Display -> XFont -> String -> IO Int -textWidth _ (Utf8 fs) s = return $ fromIntegral $ wcTextEscapement fs s -textWidth _ (Core fs) s = return $ fromIntegral $ Xlib.textWidth fs s -#ifdef XFT -textWidth dpy (Xft xftdraw) s = do - gi <- xftTxtExtents' dpy xftdraw s - return $ xglyphinfo_xOff gi -#endif - -textExtents :: XFont -> String -> IO (Int32,Int32) -textExtents (Core fs) s = do - let (_,a,d,_) = Xlib.textExtents fs s - return (a,d) -textExtents (Utf8 fs) s = do - let (_,rl) = wcTextExtents fs s - ascent = fromIntegral $ - (rect_y rl) - descent = fromIntegral $ rect_height rl + fromIntegral (rect_y rl) - return (ascent, descent) -#ifdef XFT -textExtents (Xft xftfonts) _ = do - ascent <- fromIntegral `fmap` xft_ascent' xftfonts - descent <- fromIntegral `fmap` xft_descent' xftfonts - return (ascent, descent) -#endif |