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70 lines
2.5 KiB
Haskell
70 lines
2.5 KiB
Haskell
{-# OPTIONS_GHC -fglasgow-exts #-}
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-----------------------------------------------------------------------------
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-- |
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-- Module : XMonadContrib.Magnifier
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-- Copyright : (c) Peter De Wachter 2007
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-- License : BSD-style (see xmonad/LICENSE)
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--
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-- Maintainer : Peter De Wachter <pdewacht@gmail.com>
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-- Stability : unstable
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-- Portability : unportable
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--
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-- Screenshot : <http://caladan.rave.org/magnifier.png>
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--
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-- This layout hack increases the size of the window that has focus.
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--
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-----------------------------------------------------------------------------
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module XMonadContrib.Magnifier (
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-- * Usage
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-- $usage
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magnifier, magnifier') where
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import Graphics.X11.Xlib (Window, Rectangle(..))
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import XMonad
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import StackSet
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import XMonadContrib.LayoutHelpers
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-- $usage
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-- > import XMonadContrib.Magnifier
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-- > layouts = [ magnifier tiled , magnifier $ mirror tiled ]
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-- %import XMonadContrib.Magnifier
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-- %layout , magnifier tiled
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-- %layout , magnifier $ mirror tiled
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-- | Increase the size of the window that has focus, unless it is the master window.
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magnifier :: Layout Window -> Layout Window
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magnifier = layoutModify (unlessMaster applyMagnifier) idModMod
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-- | Increase the size of the window that has focus, even if it is the master window.
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magnifier' :: Layout Window -> Layout Window
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magnifier' = layoutModify applyMagnifier idModMod
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unlessMaster :: ModDo Window -> ModDo Window
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unlessMaster mainmod r s wrs = if null (up s) then return (wrs, Nothing)
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else mainmod r s wrs
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applyMagnifier :: ModDo Window
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applyMagnifier r _ wrs = do focused <- withWindowSet (return . peek)
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let mag (w,wr) ws | focused == Just w = ws ++ [(w, shrink r $ magnify wr)]
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| otherwise = (w,wr) : ws
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return (reverse $ foldr mag [] wrs, Nothing)
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magnify :: Rectangle -> Rectangle
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magnify (Rectangle x y w h) = Rectangle x' y' w' h'
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where x' = x - fromIntegral (w' - w) `div` 2
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y' = y - fromIntegral (h' - h) `div` 2
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w' = round $ fromIntegral w * zoom
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h' = round $ fromIntegral h * zoom
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zoom = 1.5 :: Double
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shrink :: Rectangle -> Rectangle -> Rectangle
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shrink (Rectangle sx sy sw sh) (Rectangle x y w h) = Rectangle x' y' w' h'
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where x' = max sx x
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y' = max sy y
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w' = min w (fromIntegral sx + sw - fromIntegral x')
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h' = min h (fromIntegral sy + sh - fromIntegral y')
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