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https://github.com/xmonad/xmonad-contrib.git
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d3048ed615
This modifies all the contrib modules to work (so far as I know) with the new contrib layout. The exception is the LayoutHooks module, which isn't used. It exports an API that is inherently unsafe, so far as I can tell (and always has been).
62 lines
2.1 KiB
Haskell
62 lines
2.1 KiB
Haskell
-----------------------------------------------------------------------------
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-- |
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-- Module : XMonadContrib.Circle
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-- Copyright : (c) Peter De Wachter
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-- License : BSD-style (see LICENSE)
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--
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-- Maintainer : Peter De Wachter <pdewacht@gmail.com>
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-- Stability : unstable
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-- Portability : unportable
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--
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-- Circle is an elliptical, overlapping layout, by Peter De Wachter
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--
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-----------------------------------------------------------------------------
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module XMonadContrib.Circle (
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-- * Usage
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-- $usage
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circle
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) where -- actually it's an ellipse
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import Graphics.X11.Xlib
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import XMonad
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import StackSet (integrate, Stack(..))
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import XMonadContrib.LayoutHelpers ( idModify )
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-- $usage
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-- You can use this module with the following in your Config.hs file:
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--
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-- > import XMonadContrib.Circle
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circle :: Layout a
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circle = Layout { doLayout = \r s -> return (raise (length (up s)) . circleLayout r $ integrate s, Nothing),
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modifyLayout = idModify }
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circleLayout :: Rectangle -> [a] -> [(a, Rectangle)]
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circleLayout _ [] = []
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circleLayout r (w:ws) = master : rest
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where master = (w, center r)
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rest = zip ws $ map (satellite r) [0, pi * 2 / fromIntegral (length ws) ..]
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raise :: Int -> [a] -> [a]
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raise n xs = xs !! n : take n xs ++ drop (n + 1) xs
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center :: Rectangle -> Rectangle
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center (Rectangle sx sy sw sh) = Rectangle x y w h
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where s = sqrt 2 :: Double
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w = round (fromIntegral sw / s)
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h = round (fromIntegral sh / s)
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x = sx + fromIntegral (sw - w) `div` 2
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y = sy + fromIntegral (sh - h) `div` 2
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satellite :: Rectangle -> Double -> Rectangle
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satellite (Rectangle sx sy sw sh) a = Rectangle (sx + round (rx + rx * cos a))
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(sy + round (ry + ry * sin a))
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w h
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where rx = fromIntegral (sw - w) / 2
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ry = fromIntegral (sh - h) / 2
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w = sw * 10 `div` 25
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h = sh * 10 `div` 25
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