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-rw-r--r--src/ColorCache.hs64
-rw-r--r--src/MinXft.hsc139
-rw-r--r--src/XUtil.hsc42
-rw-r--r--src/Xmobar.hs7
-rw-r--r--xmobar.cabal3
5 files changed, 220 insertions, 35 deletions
diff --git a/src/ColorCache.hs b/src/ColorCache.hs
index 9a76a90..6313a98 100644
--- a/src/ColorCache.hs
+++ b/src/ColorCache.hs
@@ -7,7 +7,7 @@
--
-- Maintainer: jao@gnu.org
-- Stability: unstable
--- Portability: portable
+-- Portability: unportable
-- Created: Mon Sep 10, 2012 00:27
--
--
@@ -15,23 +15,25 @@
--
------------------------------------------------------------------------------
+#if defined XFT
+
+module ColorCache(withColors, withDrawingColors) where
+
+import MinXft
+import Graphics.X11.Xlib
+
+#else
module ColorCache(withColors) where
-#if defined XFT
--- import Graphics.X11.Xft
#endif
+
import Data.IORef
-import Graphics.X11.Xlib
import System.IO.Unsafe (unsafePerformIO)
import Control.Monad.Trans (MonadIO, liftIO)
import Control.Exception (SomeException, handle)
-data DynPixel = DynPixel { allocated :: Bool
- , pixel :: Pixel
- }
+data DynPixel = DynPixel Bool Pixel
--- | Get the Pixel value for a named color: if an invalid name is
--- given the black pixel will be returned.
initColor :: Display -> String -> IO DynPixel
initColor dpy c = handle black $ (initColor' dpy c)
where
@@ -63,4 +65,46 @@ initColor' dpy c = do
withColors :: MonadIO m => Display -> [String] -> ([Pixel] -> m a) -> m a
withColors d cs f = do
ps <- mapM (liftIO . initColor d) cs
- f $ map pixel ps
+ f $ map (\(DynPixel _ pixel) -> pixel) ps
+
+#ifdef XFT
+
+type AXftColorCache = [(String, AXftColor)]
+{-# NOINLINE xftColorCache #-}
+xftColorCache :: IORef AXftColorCache
+xftColorCache = unsafePerformIO $ newIORef []
+
+getXftCachedColor :: String -> IO (Maybe AXftColor)
+getXftCachedColor name = lookup name `fmap` readIORef xftColorCache
+
+putXftCachedColor :: String -> AXftColor -> IO ()
+putXftCachedColor name cptr =
+ modifyIORef xftColorCache $ \c -> (name, cptr) : c
+
+initAXftColor' :: Display -> Visual -> Colormap -> String -> IO AXftColor
+initAXftColor' d v cm c = do
+ cc <- getXftCachedColor c
+ c' <- case cc of
+ Just col -> return col
+ _ -> do c'' <- mallocAXftColor d v cm c
+ putXftCachedColor c c''
+ return c''
+ return c'
+
+initAXftColor :: Display -> Visual -> Colormap -> String -> IO AXftColor
+initAXftColor d v cm c = handle black $ (initAXftColor' d v cm c)
+ where
+ black :: SomeException -> IO AXftColor
+ black = (const $ initAXftColor' d v cm "black")
+
+withDrawingColors :: -- MonadIO m =>
+ Display -> Drawable -> String -> String
+ -> (AXftDraw -> AXftColor -> AXftColor -> IO ()) -> IO ()
+withDrawingColors dpy drw fc bc f = do
+ let screen = defaultScreenOfDisplay dpy
+ colormap = defaultColormapOfScreen screen
+ visual = defaultVisualOfScreen screen
+ fc' <- initAXftColor dpy visual colormap fc
+ bc' <- initAXftColor dpy visual colormap bc
+ withAXftDraw dpy drw visual colormap $ \draw -> f draw fc' bc'
+#endif
diff --git a/src/MinXft.hsc b/src/MinXft.hsc
new file mode 100644
index 0000000..478b94a
--- /dev/null
+++ b/src/MinXft.hsc
@@ -0,0 +1,139 @@
+{-# LANGUAGE ForeignFunctionInterface #-}
+------------------------------------------------------------------------------
+-- |
+-- Module: MinXft
+-- Copyright: (c) 2012 Jose Antonio Ortega Ruiz
+-- (c) Clemens Fruhwirth <clemens@endorphin.org> 2007
+-- License: BSD3-style (see LICENSE)
+--
+-- Maintainer: jao@gnu.org
+-- Stability: unstable
+-- Portability: unportable
+-- Created: Mon Sep 10, 2012 18:12
+--
+--
+-- Pared down Xft library, based on Graphics.X11.Xft and providing
+-- explicit management of XftColors, so that they can be cached.
+--
+-- Most of the code is lifted from Clemens's.
+--
+------------------------------------------------------------------------------
+
+module MinXft ( AXftColor
+ , AXftDraw
+ , AXftFont
+ , mallocAXftColor
+ , freeAXftColor
+ , withAXftDraw
+ , drawXftString
+ , drawXftRect
+ , openAXftFont
+ , closeAXftFont
+ , xftTxtExtents
+ , xft_ascent
+ , xft_descent
+ , xft_height
+ )
+
+where
+
+import Graphics.X11
+import Graphics.X11.Xlib.Types
+import Graphics.X11.Xrender
+
+import Foreign
+import Foreign.C.Types
+import Foreign.C.String
+import Codec.Binary.UTF8.String as UTF8
+
+#include <X11/Xft/Xft.h>
+
+-- Color Handling
+
+newtype AXftColor = AXftColor (Ptr AXftColor)
+
+foreign import ccall "XftColorAllocName"
+ cXftColorAllocName :: Display -> Visual -> Colormap -> CString -> AXftColor -> IO (#type Bool)
+
+-- this is the missing bit in X11.Xft, not implementable from the
+-- outside because XftColor does not export a constructor.
+mallocAXftColor :: Display -> Visual -> Colormap -> String -> IO AXftColor
+mallocAXftColor d v cm n = do
+ color <- mallocBytes (#size XftColor)
+ withCAString n $ \str -> cXftColorAllocName d v cm str (AXftColor color)
+ return (AXftColor color)
+
+foreign import ccall "XftColorFree"
+ freeAXftColor :: Display -> Visual -> Colormap -> AXftColor -> IO ()
+
+-- Font handling
+
+newtype AXftFont = AXftFont (Ptr AXftFont)
+
+xft_ascent :: AXftFont -> IO Int
+xft_ascent (AXftFont p) = peekCUShort p #{offset XftFont, ascent}
+
+xft_descent :: AXftFont -> IO Int
+xft_descent (AXftFont p) = peekCUShort p #{offset XftFont, descent}
+
+xft_height :: AXftFont -> IO Int
+xft_height (AXftFont p) = peekCUShort p #{offset XftFont, height}
+
+foreign import ccall "XftTextExtentsUtf8"
+ cXftTextExtentsUtf8 :: Display -> AXftFont -> CString -> CInt -> Ptr XGlyphInfo -> IO ()
+
+xftTxtExtents :: Display -> AXftFont -> String -> IO XGlyphInfo
+xftTxtExtents d f string =
+ withArrayLen (map fi (UTF8.encode string)) $
+ \len str_ptr -> alloca $
+ \cglyph -> do
+ cXftTextExtentsUtf8 d f str_ptr (fi len) cglyph
+ peek cglyph
+
+foreign import ccall "XftFontOpenName"
+ c_xftFontOpen :: Display -> CInt -> CString -> IO AXftFont
+
+openAXftFont :: Display -> Screen -> String -> IO AXftFont
+openAXftFont dpy screen name =
+ withCAString name $
+ \cname -> c_xftFontOpen dpy (fi (screenNumberOfScreen screen)) cname
+
+foreign import ccall "XftFontClose"
+ closeAXftFont :: Display -> AXftFont -> IO ()
+
+-- Drawing
+
+fi :: (Integral a, Num b) => a -> b
+fi = fromIntegral
+
+newtype AXftDraw = AXftDraw (Ptr AXftDraw)
+
+foreign import ccall "XftDrawCreate"
+ c_xftDrawCreate :: Display -> Drawable -> Visual -> Colormap -> IO AXftDraw
+
+foreign import ccall "XftDrawDestroy"
+ c_xftDrawDestroy :: AXftDraw -> IO ()
+
+withAXftDraw :: Display -> Drawable -> Visual -> Colormap -> (AXftDraw -> IO a) -> IO a
+withAXftDraw d p v c act = do
+ draw <- c_xftDrawCreate d p v c
+ a <- act draw
+ c_xftDrawDestroy draw
+ return a
+
+foreign import ccall "XftDrawStringUtf8"
+ cXftDrawStringUtf8 :: AXftDraw -> AXftColor -> AXftFont -> CInt -> CInt -> Ptr (#type FcChar8) -> CInt -> IO ()
+
+drawXftString :: (Integral a1, Integral a) =>
+ AXftDraw -> AXftColor -> AXftFont -> a -> a1 -> String -> IO ()
+drawXftString d c f x y string =
+ withArrayLen (map fi (UTF8.encode string))
+ (\len ptr -> cXftDrawStringUtf8 d c f (fi x) (fi y) ptr (fi len))
+
+foreign import ccall "XftDrawRect"
+ cXftDrawRect :: AXftDraw -> AXftColor -> CInt -> CInt -> CUInt -> CUInt -> IO ()
+
+drawXftRect :: (Integral a3, Integral a2, Integral a1, Integral a) =>
+ AXftDraw -> AXftColor -> a -> a1 -> a2 -> a3 -> IO ()
+drawXftRect draw color x y width height =
+ cXftDrawRect draw color (fi x) (fi y) (fi width) (fi height)
diff --git a/src/XUtil.hsc b/src/XUtil.hsc
index 7683387..21dcf3e 100644
--- a/src/XUtil.hsc
+++ b/src/XUtil.hsc
@@ -2,8 +2,8 @@
-----------------------------------------------------------------------------
-- |
-- Module : XUtil
--- Copyright : (C) 2007 Andrea Rossato
--- (C) 2011, 2012 Jose Antonio Ortega Ruiz
+-- Copyright : (C) 2011, 2012 Jose Antonio Ortega Ruiz
+-- (C) 2007 Andrea Rossato
-- License : BSD3
--
-- Maintainer : jao@gnu.org
@@ -48,11 +48,11 @@ import qualified System.IO as UTF8 (readFile,hGetLine)
#endif
#if defined XFT
import Data.List
-import Graphics.X11.Xft
+import MinXft
import Graphics.X11.Xrender
#endif
-import ColorCache (withColors)
+import ColorCache
readFileSafe :: FilePath -> IO String
#if defined XFT || defined UTF8
@@ -72,7 +72,7 @@ hGetLineSafe = hGetLine
data XFont = Core FontStruct
| Utf8 FontSet
#ifdef XFT
- | Xft XftFont
+ | Xft AXftFont
#endif
-- | When initFont gets a font name that starts with 'xft:' it switchs
@@ -118,11 +118,11 @@ initUtf8Font d s = do
fallBack = const $ createFontSet d miscFixedFont
#ifdef XFT
-initXftFont :: Display -> String -> IO XftFont
+initXftFont :: Display -> String -> IO AXftFont
initXftFont d s = do
setupLocale
- f <- xftFontOpen d (defaultScreenOfDisplay d) (drop 4 s)
- addFinalizer f (xftFontClose d f)
+ f <- openAXftFont d (defaultScreenOfDisplay d) (drop 4 s)
+ addFinalizer f (closeAXftFont d f)
return f
#endif
@@ -131,7 +131,7 @@ textWidth _ (Utf8 fs) s = return $ fi $ wcTextEscapement fs s
textWidth _ (Core fs) s = return $ fi $ Xlib.textWidth fs s
#ifdef XFT
textWidth dpy (Xft xftdraw) s = do
- gi <- xftTextExtents dpy xftdraw s
+ gi <- xftTxtExtents dpy xftdraw s
return $ xglyphinfo_xOff gi
#endif
@@ -146,8 +146,8 @@ textExtents (Utf8 fs) s = do
return (ascent, descent)
#ifdef XFT
textExtents (Xft xftfont) _ = do
- ascent <- fi `fmap` xftfont_ascent xftfont
- descent <- fi `fmap` xftfont_descent xftfont
+ ascent <- fi `fmap` xft_ascent xftfont
+ descent <- fi `fmap` xft_descent xftfont
return (ascent, descent)
#endif
@@ -168,20 +168,14 @@ printString d p (Utf8 fs) gc fc bc x y s =
#ifdef XFT
printString dpy drw fs@(Xft font) _ fc bc x y s = do
- let screen = defaultScreenOfDisplay dpy
- colormap = defaultColormapOfScreen screen
- visual = defaultVisualOfScreen screen
(a,d) <- textExtents fs s
- gi <- xftTextExtents dpy font s
- withXftDraw dpy drw visual colormap $ \draw ->
- (withXftColorName dpy visual colormap bc $ \color ->
- xftDrawRect draw color (x + 1 - fi (xglyphinfo_x gi))
- (y - (a + d) + 1)
- (xglyphinfo_xOff gi)
- (a + d)
- ) >>
- (withXftColorName dpy visual colormap fc $ \color ->
- xftDrawString draw color font x (y - 2) s)
+ gi <- xftTxtExtents dpy font s
+ withDrawingColors dpy drw fc bc $ \draw -> \fc' -> \bc' ->
+ (drawXftRect draw bc' (x + 1 - fi (xglyphinfo_x gi))
+ (y - (a + d) + 1)
+ (xglyphinfo_xOff gi)
+ (a + d)) >>
+ (drawXftString draw fc' font x (y - 2) s)
#endif
diff --git a/src/Xmobar.hs b/src/Xmobar.hs
index 3d17fad..f8db6a5 100644
--- a/src/Xmobar.hs
+++ b/src/Xmobar.hs
@@ -51,6 +51,10 @@ import Window
import XUtil
import ColorCache
+#ifdef XFT
+import Graphics.X11.Xft
+#endif
+
#ifdef DBUS
import IPC.DBus
#endif
@@ -78,6 +82,9 @@ runX xc f = runReaderT f xc
-- | Starts the main event loop and threads
startLoop :: XConf -> TMVar SignalType -> [[(Maybe ThreadId, TVar String)]] -> IO ()
startLoop xcfg@(XConf _ _ w _ _) sig vs = do
+#ifdef XFT
+ xftInitFtLibrary
+#endif
tv <- atomically $ newTVar []
_ <- forkIO (checker tv [] vs sig `catch`
\(SomeException _) -> void (putStrLn "Thread checker failed"))
diff --git a/xmobar.cabal b/xmobar.cabal
index c23aa1f..6fa4576 100644
--- a/xmobar.cabal
+++ b/xmobar.cabal
@@ -78,7 +78,7 @@ executable xmobar
main-is: Main.hs
other-modules:
Xmobar, Config, Parsers, Commands, Localize,
- XUtil, StatFS, Runnable, ColorCache, Window,
+ XUtil, StatFS, Runnable, ColorCache, Window
Plugins, Plugins.CommandReader, Plugins.Date, Plugins.EWMH,
Plugins.PipeReader, Plugins.StdinReader, Plugins.XMonadLog,
Plugins.Utils, Plugins.Kbd, Plugins.Monitors,
@@ -134,6 +134,7 @@ executable xmobar
if flag(with_xft) || flag(all_extensions)
build-depends: utf8-string == 0.3.*, X11-xft >= 0.2 && < 0.4
+ other-modules: MinXft
cpp-options: -DXFT
if flag(with_utf8) || flag(all_extensions)
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-31 20:30:46 +0000