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b1b3c4c469
With XDG support so firmly ingrained now, it's about time we stop hard-coding the configuration path in the docs.
64 lines
2.4 KiB
Haskell
64 lines
2.4 KiB
Haskell
{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses #-}
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-----------------------------------------------------------------------------
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-- |
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-- Module : XMonad.Layout.TwoPane
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-- Description : A layout that splits the screen horizontally and shows two windows.
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-- Copyright : (c) Spencer Janssen <spencerjanssen@gmail.com>
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-- License : BSD3-style (see LICENSE)
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--
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-- Maintainer : Spencer Janssen <spencerjanssen@gmail.com>
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-- Stability : unstable
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-- Portability : unportable
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--
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-- A layout that splits the screen horizontally and shows two windows. The
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-- left window is always the master window, and the right is either the
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-- currently focused window or the second window in layout order.
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--
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-----------------------------------------------------------------------------
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module XMonad.Layout.TwoPane (
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-- * Usage
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-- $usage
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TwoPane (..)
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) where
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import XMonad hiding (focus)
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import XMonad.StackSet ( focus, up, down)
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-- $usage
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-- You can use this module with the following in your @xmonad.hs@:
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--
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-- > import XMonad.Layout.TwoPane
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--
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-- Then edit your @layoutHook@ by adding the TwoPane layout:
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--
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-- > myLayout = TwoPane (3/100) (1/2) ||| Full ||| etc..
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-- > main = xmonad def { layoutHook = myLayout }
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--
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-- For more detailed instructions on editing the layoutHook see
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-- <https://xmonad.org/TUTORIAL.html#customizing-xmonad the tutorial> and
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-- "XMonad.Doc.Extending#Editing_the_layout_hook".
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data TwoPane a =
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TwoPane Rational Rational
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deriving ( Show, Read )
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instance LayoutClass TwoPane a where
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doLayout (TwoPane _ split) r s = return (arrange r s,Nothing)
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where
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arrange rect st = case reverse (up st) of
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(master:_) -> [(master,left),(focus st,right)]
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[] -> case down st of
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(next:_) -> [(focus st,left),(next,right)]
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[] -> [(focus st, rect)]
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where (left, right) = splitHorizontallyBy split rect
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handleMessage (TwoPane delta split) x =
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return $ case fromMessage x of
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Just Shrink -> Just (TwoPane delta (split - delta))
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Just Expand -> Just (TwoPane delta (split + delta))
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_ -> Nothing
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description _ = "TwoPane"
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