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|
-----------------------------------------------------------------------------
-- |
-- Module : XMonadContrib.Magnifier
-- Copyright : (c) Peter De Wachter 2007
-- License : BSD-style (see xmonad/LICENSE)
--
-- Maintainer : Peter De Wachter <pdewacht@gmail.com>
-- Stability : unstable
-- Portability : unportable
--
-- Screenshot : http://caladan.rave.org/magnifier.png
--
-- This layout hack increases the size of the window that has focus.
-- The master window is left alone. (Maybe that should be an option.)
--
--
-----------------------------------------------------------------------------
module XMonadContrib.Magnifier (
-- * Usage
-- $usage
magnifier) where
import Graphics.X11.Xlib
import XMonad
import StackSet
-- $usage
-- > import XMonadContrib.Magnifier
-- > defaultLayouts = [ magnifier tiled , magnifier $ mirror tiled ]
magnifier :: Layout -> Layout
magnifier l = l { doLayout = \r s -> applyMagnifier r s `fmap` doLayout l r s
, modifyLayout = \x -> fmap magnifier `fmap` modifyLayout l x }
applyMagnifier :: Rectangle -> Stack Window -> [(Window, Rectangle)] -> [(Window, Rectangle)]
applyMagnifier r s | null (up s) = id -- don't change the master window
| otherwise = map $ \(w,wr) -> if w == focus s then (w, shrink r $ magnify wr) else (w, wr)
magnify :: Rectangle -> Rectangle
magnify (Rectangle x y w h) = Rectangle x' y' w' h'
where x' = x - fromIntegral (w' - w) `div` 2
y' = y - fromIntegral (h' - h) `div` 2
w' = round $ fromIntegral w * zoom
h' = round $ fromIntegral h * zoom
zoom = 1.5 :: Double
shrink :: Rectangle -> Rectangle -> Rectangle
shrink (Rectangle sx sy sw sh) (Rectangle x y w h) = Rectangle x' y' w' h'
where x' = max sx x
y' = max sy y
w' = min w (fromIntegral sx + sw - fromIntegral x')
h' = min h (fromIntegral sy + sh - fromIntegral y')
|
