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Tabbed.hs: fixed centerText issues and some binding shadowing warnings

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This patch fixes the centerText issue due to the inappropriate use of
textExtends and textWidth. Those functions need a FontStruct id to
operate, and this cannot be retrieved with queryFont (see comments in
Graphics.X11.Xlib.Font).
So we now get the FontStruct with loadQueryFont, we set the default
Xorg fonts and we calculate things for (vertical and horizontal)
centering.
It also removes some binding shadows compiler warnings
This commit is contained in:
Andrea Rossato
2007-06-17 10:42:19 +00:00
parent c3158387c7
commit 0b86826b77
1 changed files with 15 additions and 17 deletions
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32
Tabbed.hs
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@@ -44,32 +44,30 @@ tabbed = Layout { doLayout = dolay, modifyLayout = const (return Nothing) }
dolay :: Rectangle -> W.Stack Window -> X [(Window, Rectangle)]
dolay sc (W.Stack w [] []) = return [(w,sc)]
dolay sc@(Rectangle x y wid _) s@(W.Stack w _ _) = withDisplay $ \d ->
do activecolor <- io $ initColor d "#BBBBBB"
inactivecolor <- io $ initColor d "#888888"
textcolor <- io $ initColor d "#000000"
bgcolor <- io $ initColor d "#000000"
dolay sc@(Rectangle x y wid _) s@(W.Stack w _ _) = withDisplay $ \dpy ->
do activecolor <- io $ initColor dpy "#BBBBBB"
inactivecolor <- io $ initColor dpy "#888888"
textcolor <- io $ initColor dpy "#000000"
bgcolor <- io $ initColor dpy "#000000"
let ws = W.integrate s
ts = gentabs x y wid (length ws)
tws = zip ts ws
maketab (t,w) = newDecoration w t 1 bgcolor activecolor (drawtab t w) (focus w)
drawtab r@(Rectangle _ _ wt ht) w d w' gc =
do nw <- getName w
tabcolor <- (maybe inactivecolor (\focusw -> if focusw == w then activecolor else inactivecolor) . W.peek) `liftM` gets windowset
maketab (t,ow) = newDecoration ow t 1 bgcolor activecolor (drawtab t ow) (focus ow)
drawtab r@(Rectangle _ _ wt ht) ow d w' gc =
do nw <- getName ow
tabcolor <- (maybe inactivecolor (\focusw -> if focusw == ow then activecolor else inactivecolor) . W.peek) `liftM` gets windowset
io $ setForeground d gc tabcolor
io $ fillRectangles d w' gc [Rectangle 0 0 wt ht]
io $ setForeground d gc textcolor
centerText d w' gc r (show nw)
centerText d w' gc (Rectangle _ _ wt ht) name =
do font <- io (fontFromGC d gc >>= queryFont d)
-- let (_,namew,nameh,_) = textExtents font name -- textExtents causes a crash!
-- let nameh = ht `div` 2
-- namew = textWidth font name -- textWidth also causes a crash!
let nameh = ht - 6
namew = wt - 10
do fontst <- io $ loadQueryFont d "-misc-fixed-*-*-*-*-*-*-*-*-*-*-*-*"
io $ setFont d gc (fontFromFontStruct fontst)
let (_,asc,_,_) = textExtents fontst name
width = textWidth fontst name
io $ drawString d w' gc
(fromIntegral (wt `div` 2) - fromIntegral (namew `div` 2))
(fromIntegral (ht `div` 2) + fromIntegral (nameh `div` 2)) name
(fromIntegral (wt `div` 2) - fromIntegral (width `div` 2))
(fromIntegral ht - fromIntegral (asc `div` 2)) name
forM tws maketab
return [ (w,shrink sc) ]