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94 lines
3.1 KiB
Haskell
94 lines
3.1 KiB
Haskell
{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses #-}
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-----------------------------------------------------------------------------
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-- |
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-- Module : XMonad.Layout.MultiDishes
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-- Description : A layout stacking groups of extra windows underneath the master windows.
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-- Copyright : (c) Jeremy Apthorp, Nathan Fairhurst
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-- License : BSD-style (see LICENSE)
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--
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-- Maintainer : Nathan Fairhurst <nathan.p3pictures@gmail.com>
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-- Stability : unstable
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-- Portability : portable
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--
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-- MultiDishes is a layout that stacks groups of extra windows underneath
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-- the master windows.
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--
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-----------------------------------------------------------------------------
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module XMonad.Layout.MultiDishes (
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-- * Usage
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-- $usage
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MultiDishes (..)
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) where
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import XMonad
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import XMonad.StackSet (integrate)
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import XMonad.Prelude (ap)
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-- $usage
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-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:
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--
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-- > import XMonad.Layout.MultiDishes
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--
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-- Then edit your @layoutHook@ by adding the MultiDishes layout:
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--
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-- > myLayout = MultiDishes 2 3 (1/6) ||| Full ||| etc..
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-- > main = xmonad def { layoutHook = myLayout }
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--
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-- This is based on the Layout Dishes, but accepts another parameter for
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-- the maximum number of dishes allowed within a stack.
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--
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-- > MultiDishes x 1 y
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-- is equivalent to
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-- > Dishes x y
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--
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-- The stack with the fewest dishes is always on top, so 4 windows
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-- with the layout `MultiDishes 1 2 (1/5)` would look like this:
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--
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-- > _________
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-- > | |
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-- > | M |
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-- > |_______|
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-- > |_______|
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-- > |___|___|
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--
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-- For more detailed instructions on editing the layoutHook see:
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--
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-- "XMonad.Doc.Extending#Editing_the_layout_hook"
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data MultiDishes a = MultiDishes Int Int Rational deriving (Show, Read)
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instance LayoutClass MultiDishes a where
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pureLayout (MultiDishes nmaster dishesPerStack h) r =
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ap zip (multiDishes h r nmaster dishesPerStack . length) . integrate
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pureMessage (MultiDishes nmaster dishesPerStack h) m = fmap incmastern (fromMessage m)
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where incmastern (IncMasterN d) = MultiDishes (max 0 (nmaster+d)) dishesPerStack h
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multiDishes :: Rational -> Rectangle -> Int -> Int -> Int -> [Rectangle]
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multiDishes h s nmaster dishesPerStack n = if n <= nmaster
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then splitHorizontally n s
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else ws
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where
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(filledDishStackCount, remainder) =
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(n - nmaster) `quotRem` max 1 dishesPerStack
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(firstDepth, dishStackCount) =
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if remainder == 0 then
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(dishesPerStack, filledDishStackCount)
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else
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(remainder, filledDishStackCount + 1)
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(masterRect, dishesRect) =
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splitVerticallyBy (1 - fromIntegral dishStackCount * h) s
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dishStackRects =
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splitVertically dishStackCount dishesRect
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allDishRects = case dishStackRects of
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(firstStack:bottomDishStacks) ->
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splitHorizontally firstDepth firstStack ++ (bottomDishStacks >>= splitHorizontally dishesPerStack)
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[] -> []
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ws =
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splitHorizontally nmaster masterRect ++ allDishRects
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