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|
{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses, PatternGuards #-}
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Layout.ResizeScreen
-- Copyright : (c) 2007 Andrea Rossato
-- License : BSD-style (see xmonad/LICENSE)
--
-- Maintainer : andrea.rossato@unibz.it
-- Stability : unstable
-- Portability : unportable
--
-- A layout transformer to have a layout respect a given screen
-- geometry. Mostly used with "Decoration" (the Horizontal and the
-- Vertical version will react to SetTheme and change their dimension
-- accordingly.
-----------------------------------------------------------------------------
module XMonad.Layout.ResizeScreen
( -- * Usage:
-- $usage
resizeHorizontal, resizeVertical
, resizeHorizontalRight, resizeVerticalBottom
, withNewRectangle
, ResizeScreen (..)
, ResizeMode
) where
import XMonad
import XMonad.Layout.Decoration
-- $usage
-- You can use this module by importing it into your
-- @~\/.xmonad\/xmonad.hs@ file:
--
-- > import XMonad.Layout.ResizeScreen
--
-- and modifying your layoutHook as follows (for example):
--
-- > layoutHook = resizeHorizontal 40 Full
--
-- For more detailed instructions on editing the layoutHook see:
--
-- "XMonad.Doc.Extending#Editing_the_layout_hook"
resizeHorizontal :: Int -> l a -> ModifiedLayout ResizeScreen l a
resizeHorizontal i = ModifiedLayout (ResizeScreen L i)
resizeVertical :: Int -> l a -> ModifiedLayout ResizeScreen l a
resizeVertical i = ModifiedLayout (ResizeScreen T i)
resizeHorizontalRight :: Int -> l a -> ModifiedLayout ResizeScreen l a
resizeHorizontalRight i = ModifiedLayout (ResizeScreen R i)
resizeVerticalBottom :: Int -> l a -> ModifiedLayout ResizeScreen l a
resizeVerticalBottom i = ModifiedLayout (ResizeScreen B i)
withNewRectangle :: Rectangle -> l a -> ModifiedLayout ResizeScreen l a
withNewRectangle r = ModifiedLayout (WithNewScreen r)
data ResizeScreen a = ResizeScreen ResizeMode Int
| WithNewScreen Rectangle
deriving (Read, Show)
data ResizeMode = T | B | L | R deriving (Read, Show)
instance LayoutModifier ResizeScreen a where
modifyLayout m ws rect@(Rectangle x y w h)
| ResizeScreen L i <- m = resize $ Rectangle (x + fi i) y (w - fi i) h
| ResizeScreen R i <- m = resize $ Rectangle x y (w - fi i) h
| ResizeScreen T i <- m = resize $ Rectangle x (y + fi i) w (h - fi i)
| ResizeScreen B i <- m = resize $ Rectangle x y w (h - fi i)
| WithNewScreen r <- m = resize r
| otherwise = resize rect
where resize nr = runLayout ws nr
pureMess (ResizeScreen d _) m
| Just (SetTheme t) <- fromMessage m = Just $ ResizeScreen d (fi $ decoHeight t)
pureMess _ _ = Nothing
|
