diff options
Diffstat (limited to '')
-rw-r--r-- | XMonad/Layout/ThreeColumns.hs | 67 |
1 files changed, 42 insertions, 25 deletions
diff --git a/XMonad/Layout/ThreeColumns.hs b/XMonad/Layout/ThreeColumns.hs index 188bce9..06eb943 100644 --- a/XMonad/Layout/ThreeColumns.hs +++ b/XMonad/Layout/ThreeColumns.hs @@ -10,7 +10,11 @@ -- Stability : unstable -- Portability : unportable -- --- A layout similar to tall but with three columns. +-- A layout similar to tall but with three columns. With 2560x1600 pixels this +-- layout can be used for a huge main window and up to six reasonable sized +-- slave windows. +-- +-- Screenshot: <http://server.c-otto.de/xmonad/ThreeColumnsMiddle.png> -- ----------------------------------------------------------------------------- @@ -34,44 +38,57 @@ import Control.Monad -- -- Then edit your @layoutHook@ by adding the ThreeCol layout: -- --- > myLayouts = ThreeCol 1 (3/100) (1/2) ||| etc.. +-- > myLayouts = ThreeCol False 1 (3/100) (1/2) ||| etc.. -- > main = xmonad defaultConfig { layoutHook = myLayouts } -- +-- If the first argument is true, the main window is placed in the center +-- column. The second argument specifies hom many windows initially appear in +-- the main window. The third argument argument specifies the amount to resize +-- while resizing and the fourth argument specifies the initial size of the +-- columns. A positive size designates the fraction of the screen that the main +-- window should occupy, but if the size is negative the absolute value +-- designates the fraction a slave column should occupy. If both slave columns +-- are visible, they always occupy the same amount of space. +-- -- For more detailed instructions on editing the layoutHook see: -- -- "XMonad.Doc.Extending#Editing_the_layout_hook" -data ThreeCol a = ThreeCol !Int !Rational !Rational deriving (Show,Read) +data ThreeCol a = ThreeCol !Bool !Int !Rational !Rational deriving (Show,Read) instance LayoutClass ThreeCol a where - doLayout (ThreeCol nmaster _ frac) r = + doLayout (ThreeCol middle nmaster _ frac) r = return . (\x->(x,Nothing)) . - ap zip (tile3 frac r nmaster . length) . W.integrate - handleMessage (ThreeCol nmaster delta frac) m = + ap zip (tile3 middle frac r nmaster . length) . W.integrate + handleMessage (ThreeCol middle nmaster delta frac) m = return $ msum [fmap resize (fromMessage m) ,fmap incmastern (fromMessage m)] - where resize Shrink = ThreeCol nmaster delta (max 0 $ frac-delta) - resize Expand = ThreeCol nmaster delta (min 1 $ frac+delta) - incmastern (IncMasterN d) = ThreeCol (max 0 (nmaster+d)) delta frac + where resize Shrink = ThreeCol middle nmaster delta (max (-0.5) $ frac-delta) + resize Expand = ThreeCol middle nmaster delta (min 1 $ frac+delta) + incmastern (IncMasterN d) = ThreeCol middle (max 0 (nmaster+d)) delta frac description _ = "ThreeCol" -- | tile3. Compute window positions using 3 panes -tile3 :: Rational -> Rectangle -> Int -> Int -> [Rectangle] -tile3 f r nmaster n +tile3 :: Bool -> Rational -> Rectangle -> Int -> Int -> [Rectangle] +tile3 middle f r nmaster n | n <= nmaster || nmaster == 0 = splitVertically n r | n <= nmaster+1 = splitVertically nmaster s1 ++ splitVertically (n-nmaster) s2 - | otherwise = splitVertically nmaster r1 ++ splitVertically nmid r2 ++ splitVertically nright r3 - where (r1, r2, r3) = split3HorizontallyBy f r - (s1, s2) = splitHorizontallyBy f r - nslave = (n - nmaster) - nmid = ceiling (nslave % 2) - nright = (n - nmaster - nmid) + | otherwise = splitVertically nmaster r1 ++ splitVertically nslave1 r2 ++ splitVertically nslave2 r3 + where (r1, r2, r3) = split3HorizontallyBy middle (if f<0 then 1+2*f else f) r + (s1, s2) = splitHorizontallyBy (if f<0 then 1+f else f) r + nslave = (n - nmaster) + nslave1 = ceiling (nslave % 2) + nslave2 = (n - nmaster - nslave1) -split3HorizontallyBy :: Rational -> Rectangle -> (Rectangle, Rectangle, Rectangle) -split3HorizontallyBy f (Rectangle sx sy sw sh) = - ( Rectangle sx sy leftw sh - , Rectangle (sx + fromIntegral leftw) sy midw sh - , Rectangle (sx + fromIntegral leftw + fromIntegral midw) sy rightw sh ) - where leftw = ceiling $ fromIntegral sw * (2/3) * f - midw = ceiling ( (sw - leftw) % 2 ) - rightw = sw - leftw - midw +split3HorizontallyBy :: Bool -> Rational -> Rectangle -> (Rectangle, Rectangle, Rectangle) +split3HorizontallyBy middle f (Rectangle sx sy sw sh) = + if middle + then ( Rectangle (sx + fromIntegral r2w) sy r1w sh + , Rectangle sx sy r2w sh + , Rectangle (sx + fromIntegral r2w + fromIntegral r1w) sy r3w sh ) + else ( Rectangle sx sy r1w sh + , Rectangle (sx + fromIntegral r1w) sy r2w sh + , Rectangle (sx + fromIntegral r1w + fromIntegral r2w) sy r3w sh ) + where r1w = ceiling $ fromIntegral sw * f + r2w = ceiling ( (sw - r1w) % 2 ) + r3w = sw - r1w - r2w |