xmonad-contrib/XMonad/Layout/ResizeScreen.hs
Andrea Rossato f2a268c14e ScreenResize: vertical and horizontal now respond to SetTheme
And so they will change the screen dimension accordingly.
2008-02-10 07:45:44 +00:00

69 lines
2.3 KiB
Haskell

{-# 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
, withNewRectangle
, ResizeScreen (..)
) 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 H i)
resizeVertical :: Int -> l a -> ModifiedLayout ResizeScreen l a
resizeVertical i = ModifiedLayout (ResizeScreen V 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 = H | V deriving (Read, Show)
instance LayoutModifier ResizeScreen a where
modifyLayout m l re@(Rectangle x y w h) s
| ResizeScreen H i <- m = resize (Rectangle (x + fi i) y (w - fi i) h)
| ResizeScreen V i <- m = resize (Rectangle x (y + fi i) w (h - fi i))
| WithNewScreen r <- m = resize r
| otherwise = resize re
where resize nr = doLayout l nr s
pureMess (ResizeScreen d _) m
| Just (SetTheme t) <- fromMessage m = Just $ ResizeScreen d (fi $ decoHeight t)
pureMess _ _ = Nothing