Add Font layer supporting an Xft backend. Make Tabbed.hs a user of this layer.

This commit is contained in:
Clemens Fruhwirth 2007-11-16 12:06:53 +00:00
parent 711381e29a
commit ce5928edd3
5 changed files with 198 additions and 87 deletions

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@ -37,6 +37,7 @@ import qualified XMonad.StackSet as W
import XMonad.Util.NamedWindows
import XMonad.Util.Invisible
import XMonad.Util.XUtils
import XMonad.Util.Font
-- $usage
-- You can use this module with the following in your configuration file:
@ -96,7 +97,7 @@ defaultTConf =
data TabState =
TabState { tabsWindows :: [(Window,Window)]
, scr :: Rectangle
, fontS :: FontStruct -- FontSet
, font :: XMonadFont
}
data Tabbed s a =
@ -125,7 +126,7 @@ doLay ist ishr conf sc@(Rectangle _ _ wid _) s@(W.Stack w _ _) = do
tws <- createTabs conf sc ws
return (ts {scr = sc, tabsWindows = zip tws ws})
mapM_ showWindow $ map fst $ tabsWindows st
mapM_ (updateTab ishr conf (fontS st) width) $ tabsWindows st
mapM_ (updateTab ishr conf (font st) width) $ tabsWindows st
return ([(w,shrink conf sc)], Just (Tabbed (I (Just st)) ishr conf))
handleMess :: Shrinker s => Tabbed s Window -> SomeMessage -> X (Maybe (Tabbed s Window))
@ -133,29 +134,39 @@ handleMess (Tabbed (I (Just st@(TabState {tabsWindows = tws}))) ishr conf) m
| Just e <- fromMessage m :: Maybe Event = handleEvent ishr conf st e >> return Nothing
| Just Hide == fromMessage m = mapM_ hideWindow (map fst tws) >> return Nothing
| Just ReleaseResources == fromMessage m = do mapM_ deleteWindow $ map fst tws
releaseFont (fontS st)
releaseXMF (font st)
return $ Just $ Tabbed (I Nothing) ishr conf
handleMess _ _ = return Nothing
handleEvent :: Shrinker s => s -> TConf -> TabState -> Event -> X ()
-- button press
handleEvent ishr conf (TabState {tabsWindows = tws, scr = screen, fontS = fs })
handleEvent ishr conf (TabState {tabsWindows = tws, scr = screen, font = fs })
(ButtonEvent {ev_window = thisw, ev_subwindow = thisbw, ev_event_type = t })
| t == buttonPress, tl <- map fst tws, thisw `elem` tl || thisbw `elem` tl = do
case lookup thisw tws of
Just x -> do focus x
updateTab ishr conf fs width (thisw, x)
Nothing -> return ()
where width = rect_width screen `div` fromIntegral (length tws)
where
width = rect_width screen`div` fromIntegral (length tws)
handleEvent ishr conf (TabState {tabsWindows = tws, scr = screen, font = fs })
(AnyEvent {ev_window = thisw, ev_event_type = t })
-- expose
| thisw `elem` (map fst tws) && t == expose = do
updateTab ishr conf fs width (thisw, fromJust $ lookup thisw tws)
where
width = rect_width screen`div` fromIntegral (length tws)
-- propertyNotify
handleEvent ishr conf (TabState {tabsWindows = tws, scr = screen, fontS = fs })
handleEvent ishr conf (TabState {tabsWindows = tws, scr = screen, font = fs })
(PropertyEvent {ev_window = thisw })
| thisw `elem` (map snd tws) = do
let tabwin = (fst $ fromJust $ find ((== thisw) . snd) tws, thisw)
updateTab ishr conf fs width tabwin
where width = rect_width screen `div` fromIntegral (length tws)
-- expose
handleEvent ishr conf (TabState {tabsWindows = tws, scr = screen, fontS = fs })
handleEvent ishr conf (TabState {tabsWindows = tws, scr = screen, font = fs })
(ExposeEvent {ev_window = thisw })
| thisw `elem` (map fst tws) = do
updateTab ishr conf fs width (thisw, fromJust $ lookup thisw tws)
@ -164,7 +175,7 @@ handleEvent _ _ _ _ = return ()
initState :: TConf -> Rectangle -> [Window] -> X TabState
initState conf sc ws = do
fs <- initFont (fontName conf)
fs <- initXMF (fontName conf)
tws <- createTabs conf sc ws
return $ TabState (zip tws ws) sc fs
@ -180,7 +191,7 @@ createTabs c (Rectangle x y wh ht) owl@(ow:ows) = do
ws <- createTabs c (Rectangle (x + fromIntegral wid) y (wh - wid) ht) ows
return (w:ws)
updateTab :: Shrinker s => s -> TConf -> FontStruct -> Dimension -> (Window,Window) -> X ()
updateTab :: Shrinker s => s -> TConf -> XMonadFont -> Dimension -> (Window,Window) -> X ()
updateTab ishr c fs wh (tabw,ow) = do
nw <- getName ow
let ht = fromIntegral $ tabSize c :: Dimension
@ -190,22 +201,26 @@ updateTab ishr c fs wh (tabw,ow) = do
(bc',borderc',tc') <- focusColor ow
(inactiveColor c, inactiveBorderColor c, inactiveTextColor c)
(activeColor c, activeBorderColor c, activeTextColor c)
let s = shrinkIt ishr
name = shrinkWhile s (\n -> textWidth fs n >
fromIntegral wh - fromIntegral (ht `div` 2)) (show nw)
dpy <- asks display
let s = shrinkIt ishr
name <- shrinkWhile s (\n -> do
size <- io $ textWidthXMF dpy fs n
return $ size > fromIntegral wh - fromIntegral (ht `div` 2)) (show nw)
paintAndWrite tabw fs wh ht 1 bc' borderc' tc' bc' AlignCenter name
shrink :: TConf -> Rectangle -> Rectangle
shrink c (Rectangle x y w h) =
Rectangle x (y + fromIntegral (tabSize c)) w (h - fromIntegral (tabSize c))
shrinkWhile :: (String -> [String]) -> (String -> Bool) -> String -> String
shrinkWhile :: (String -> [String]) -> (String -> X Bool) -> String -> X String
shrinkWhile sh p x = sw $ sh x
where sw [n] = n
sw [] = ""
sw (n:ns) | p n = sw ns
| otherwise = n
where sw [n] = return n
sw [] = return ""
sw (n:ns) = do
cond <- p n
if cond
then sw ns
else return n
data CustomShrink = CustomShrink
instance Show CustomShrink where show _ = ""

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@ -46,7 +46,7 @@ import Graphics.X11.Xlib.Extras
import XMonad hiding (config, io)
import XMonad.Operations (initColor)
import qualified XMonad.StackSet as W
import XMonad.Util.XUtils
import XMonad.Util.Font
import XMonad.Util.XSelection (getSelection)
import Control.Arrow ((***),(&&&))
@ -169,12 +169,12 @@ mkXPrompt t conf compl action = do
gc <- liftIO $ createGC d w
liftIO $ setGraphicsExposures d gc False
(hist,h) <- liftIO $ readHistory
fs <- initFont (font conf)
fs <- initCoreFont (font conf)
liftIO $ setFont d gc $ fontFromFontStruct fs
let st = initState d rw w s compl gc fs (XPT t) hist conf
st' <- liftIO $ execStateT runXP st
releaseFont fs
releaseCoreFont fs
liftIO $ freeGC d gc
liftIO $ hClose h
when (command st' /= "") $ do
@ -445,8 +445,8 @@ printPrompt drw = do
in (prt ++ a, [head b], tail b)
ht = height c
(fsl,psl) = (textWidth fs *** textWidth fs) (f,p)
(_,asc,desc,_) = textExtents fs str
y = fi $ ((ht - fi (asc + desc)) `div` 2) + fi asc
(_,asc,desc,_) <- io $ textExtentsXMF (dpy st) (Left fs) str
let y = fi $ ((ht - fi (asc + desc)) `div` 2) + fi asc
x = (asc + desc) `div` 2
fgcolor <- io $ initColor d $ fgColor c
bgcolor <- io $ initColor d $ bgColor c
@ -511,9 +511,8 @@ getComplWinDim compl = do
(x,y) = case position c of
Top -> (0,ht)
Bottom -> (0, (0 + rem_height - actual_height))
let (_,asc,desc,_) = textExtents fs $ head compl
yp = fi $ (ht + fi (asc - desc)) `div` 2
(_,asc,desc,_) <- io $ textExtentsXMF (dpy st) (Left fs) $ head compl
let yp = fi $ (ht + fi (asc - desc)) `div` 2
xp = (asc + desc) `div` 2
yy = map fi . take (fi actual_rows) $ [yp,(yp + ht)..]
xx = take (fi columns) [xp,(xp + max_compl_len)..]

142
XMonad/Util/Font.hs Normal file
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@ -0,0 +1,142 @@
----------------------------------------------------------------------------
-- |
-- Module : XMonad.Util.Font
-- Copyright : (c) 2007 Andrea Rossato
-- License : BSD-style (see xmonad/LICENSE)
--
-- Maintainer : andrea.rossato@unibz.it
-- Stability : unstable
-- Portability : unportable
--
-- A module for abstracting a font facility over Core fonts and Xft
--
-----------------------------------------------------------------------------
module XMonad.Util.Font (
-- * Usage:
-- $usage
XMonadFont
, initXMF
, releaseXMF
, initCoreFont
, releaseCoreFont
, Align (..)
, stringPosition
, textWidthXMF
, textExtentsXMF
, printStringXMF
, stringToPixel
) where
import Graphics.X11.Xlib
import Graphics.X11.Xft
import Graphics.X11.Xrender
import Control.Monad.Reader
import Data.List
import XMonad
import Foreign
import XMonad.Operations
-- Hide the Core Font/Xft switching here
type XMonadFont = Either FontStruct XftFont
-- $usage
-- See Tabbed or Prompt for usage examples
-- | Get the Pixel value for a named color: if an invalid name is
-- given the black pixel will be returned.
stringToPixel :: String -> X Pixel
stringToPixel s = do
d <- asks display
io $ catch (getIt d) (fallBack d)
where getIt d = initColor d s
fallBack d = const $ return $ blackPixel d (defaultScreen d)
-- | Given a fontname returns the font structure. If the font name is
-- not valid the default font will be loaded and returned.
initCoreFont :: String -> X FontStruct
initCoreFont s = do
d <- asks display
io $ catch (getIt d) (fallBack d)
where getIt d = loadQueryFont d s
fallBack d = const $ loadQueryFont d "-misc-fixed-*-*-*-*-10-*-*-*-*-*-*-*"
releaseCoreFont :: FontStruct -> X ()
releaseCoreFont fs = do
d <- asks display
io $ freeFont d fs
-- | When initXMF gets a font name that starts with 'xft:' it switchs to the Xft backend
-- Example: 'xft: Sans-10'
initXMF :: String -> X XMonadFont
initXMF s =
if xftPrefix `isPrefixOf` s then
do
dpy <- asks display
xftdraw <- io $ xftFontOpen dpy (defaultScreenOfDisplay dpy) (drop (length xftPrefix) s)
return (Right xftdraw)
else
(initCoreFont s >>= (return . Left))
where xftPrefix = "xft:"
releaseXMF :: XMonadFont -> X ()
releaseXMF (Left fs) = releaseCoreFont fs
releaseXMF (Right xftfont) = do
dpy <- asks display
io $ xftFontClose dpy xftfont
textWidthXMF :: Display -> XMonadFont -> String -> IO Int
textWidthXMF _ (Left fs) s = return $ fi $ textWidth fs s
textWidthXMF dpy (Right xftdraw) s = do
gi <- xftTextExtents dpy xftdraw s
return $ xglyphinfo_width gi
textExtentsXMF :: Display -> XMonadFont -> String -> IO (FontDirection,Int32,Int32,CharStruct)
textExtentsXMF _ (Left fs) s = return $ textExtents fs s
textExtentsXMF _ (Right xftfont) _ = do
ascent <- xftfont_ascent xftfont
descent <- xftfont_descent xftfont
return (error "Font direction touched", fi ascent, fi descent, error "Font overall size touched")
-- | String position
data Align = AlignCenter | AlignRight | AlignLeft
-- | Return the string x and y 'Position' in a 'Rectangle', given a
-- 'FontStruct' and the 'Align'ment
stringPosition :: XMonadFont -> Rectangle -> Align -> String -> X (Position,Position)
stringPosition fs (Rectangle _ _ w h) al s = do
dpy <- asks display
width <- io $ textWidthXMF dpy fs s
(_,a,d,_) <- io $ textExtentsXMF dpy fs s
let y = fi $ ((h - fi (a + d)) `div` 2) + fi a;
x = case al of
AlignCenter -> fi (w `div` 2) - fi (width `div` 2)
AlignLeft -> 1
AlignRight -> fi (w - (fi width + 1));
return (x,y)
printStringXMF :: Display -> Drawable -> XMonadFont -> GC -> String -> String
-> Position -> Position -> String -> X ()
printStringXMF d p (Left fs) gc fc bc x y s = do
io $ setFont d gc $ fontFromFontStruct fs
[fc',bc'] <- mapM stringToPixel [fc,bc]
io $ setForeground d gc fc'
io $ setBackground d gc bc'
io $ drawImageString d p gc x y s
printStringXMF dpy drw (Right font) _ fc _ x y s = do
let screen = defaultScreenOfDisplay dpy;
colormap = defaultColormapOfScreen screen;
visual = defaultVisualOfScreen screen;
io $ withXftDraw dpy drw visual colormap $
\draw -> withXftColorName dpy visual colormap fc $
\color -> xftDrawString draw color font x y s
-- | Short-hand for 'fromIntegral'
fi :: (Integral a, Num b) => a -> b
fi = fromIntegral

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@ -15,18 +15,14 @@
module XMonad.Util.XUtils (
-- * Usage:
-- $usage
stringToPixel
, averagePixels
, initFont
, releaseFont
averagePixels
, createNewWindow
, showWindow
, hideWindow
, deleteWindow
, paintWindow
, Align (..)
, stringPosition
, paintAndWrite
, stringToPixel
) where
@ -36,11 +32,10 @@ import Graphics.X11.Xlib.Extras
import Control.Monad.Reader
import Data.Maybe
import XMonad
import XMonad.Operations
import XMonad.Util.Font
-- $usage
-- See "XMonad.Layout.Tabbed" or "XMonad.Layout.DragPane" for usage
-- examples
-- See Tabbed or DragPane for usage examples
-- | Get the Pixel value for a named color: if an invalid name is
-- given the black pixel will be returned.
@ -60,21 +55,6 @@ averagePixels p1 p2 f =
let mn x1 x2 = round (fromIntegral x1 * f + fromIntegral x2 * (1-f))
Color p _ _ _ _ <- io $ allocColor d cm (Color 0 (mn r1 r2) (mn g1 g2) (mn b1 b2) 0)
return p
-- | Given a fontname returns the fonstructure. If the font name is
-- not valid the default font will be loaded and returned.
initFont :: String -> X FontStruct
initFont s = do
d <- asks display
io $ catch (getIt d) (fallBack d)
where getIt d = loadQueryFont d s
fallBack d = const $ loadQueryFont d "-misc-fixed-*-*-*-*-10-*-*-*-*-*-*-*"
releaseFont :: FontStruct -> X ()
releaseFont fs = do
d <- asks display
io $ freeFont d fs
-- | Create a simple window given a rectangle. If Nothing is given
-- only the exposureMask will be set, otherwise the Just value.
-- Use 'showWindow' to map and hideWindow to unmap.
@ -118,24 +98,9 @@ paintWindow :: Window -- ^ The window where to draw
paintWindow w wh ht bw c bc =
paintWindow' w (Rectangle 0 0 wh ht) bw c bc Nothing
-- | String position
data Align = AlignCenter | AlignRight | AlignLeft
-- | Return the string x and y 'Position' in a 'Rectangle', given a
-- 'FontStruct' and the 'Align'ment
stringPosition :: FontStruct -> Rectangle -> Align -> String -> (Position,Position)
stringPosition fs (Rectangle _ _ w h) al s = (x,y)
where width = textWidth fs s
(_,a,d,_) = textExtents fs s
y = fi $ ((h - fi (a + d)) `div` 2) + fi a
x = case al of
AlignCenter -> fi (w `div` 2) - fi (width `div` 2)
AlignLeft -> 1
AlignRight -> fi (w - (fi width + 1))
-- | Fill a window with a rectangle and a border, and write a string at given position
paintAndWrite :: Window -- ^ The window where to draw
-> FontStruct -- ^ The FontStruct
-> XMonadFont -- ^ XMonad Font for drawing
-> Dimension -- ^ Window width
-> Dimension -- ^ Window height
-> Dimension -- ^ Border width
@ -146,47 +111,36 @@ paintAndWrite :: Window -- ^ The window where to draw
-> Align -- ^ String 'Align'ment
-> String -- ^ String to be printed
-> X ()
paintAndWrite w fs wh ht bw bc borc ffc fbc al str =
paintWindow' w r bw bc borc ms
paintAndWrite w fs wh ht bw bc borc ffc fbc al str = do
(x,y) <- stringPosition fs (Rectangle 0 0 wh ht) al str
paintWindow' w (Rectangle x y wh ht) bw bc borc ms
where ms = Just (fs,ffc,fbc,str)
r = Rectangle x y wh ht
(x,y) = stringPosition fs (Rectangle 0 0 wh ht) al str
-- This stuf is not exported
paintWindow' :: Window -> Rectangle -> Dimension -> String -> String -> Maybe (FontStruct,String,String,String) -> X ()
paintWindow' :: Window -> Rectangle -> Dimension -> String -> String -> Maybe (XMonadFont,String,String,String) -> X ()
paintWindow' win (Rectangle x y wh ht) bw color b_color str = do
d <- asks display
p <- io $ createPixmap d win wh ht (defaultDepthOfScreen $ defaultScreenOfDisplay d)
gc <- io $ createGC d p
-- draw
io $ setGraphicsExposures d gc False
[c',bc'] <- mapM stringToPixel [color,b_color]
[color',b_color'] <- mapM stringToPixel [color,b_color]
-- we start with the border
io $ setForeground d gc bc'
io $ setForeground d gc b_color'
io $ fillRectangle d p gc 0 0 wh ht
-- and now again
io $ setForeground d gc c'
io $ setForeground d gc color'
io $ fillRectangle d p gc (fi bw) (fi bw) ((wh - (bw * 2))) (ht - (bw * 2))
when (isJust str) $ do
let (fs,fc,bc,s) = fromJust str
io $ setFont d gc $ fontFromFontStruct fs
printString d p gc fc bc x y s
let (xmf,fc,bc,s) = fromJust str
printStringXMF d p xmf gc fc bc x y s
-- copy the pixmap over the window
io $ copyArea d p win gc 0 0 wh ht 0 0
-- free the pixmap and GC
io $ freePixmap d p
io $ freeGC d gc
-- | Prints a string on a 'Drawable'
printString :: Display -> Drawable -> GC -> String -> String
-> Position -> Position -> String -> X ()
printString d drw gc fc bc x y s = do
[fc',bc'] <- mapM stringToPixel [fc,bc]
io $ setForeground d gc fc'
io $ setBackground d gc bc'
io $ drawImageString d drw gc x y s
-- | Short-hand for 'fromIntegral'
fi :: (Integral a, Num b) => a -> b
fi = fromIntegral

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@ -26,7 +26,7 @@ library
else
build-depends: base < 3
build-depends: mtl, unix, X11==1.3.0.20071111, xmonad==0.4
build-depends: mtl, unix, X11==1.3.0.20071111, xmonad==0.4, utf8-string, X11-xft
ghc-options: -Wall -Werror
exposed-modules: Documentation
XMonad.Actions.Commands
@ -106,6 +106,7 @@ library
XMonad.Util.Dmenu
XMonad.Util.Dzen
XMonad.Util.EZConfig
XMonad.Util.Font
XMonad.Util.Invisible
XMonad.Util.NamedWindows
XMonad.Util.Run