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45 lines
1.6 KiB
Haskell
45 lines
1.6 KiB
Haskell
-----------------------------------------------------------------------------
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-- |
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-- Module : XMonadContrib.LayoutHints
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-- Copyright : (c) David Roundy <droundy@darcs.net>
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-- License : BSD
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--
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-- Maintainer : David Roundy <droundy@darcs.net>
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-- Stability : unstable
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-- Portability : portable
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--
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-- Make layouts respect size hints.
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-----------------------------------------------------------------------------
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module XMonadContrib.LayoutHints (
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-- * usage
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-- $usage
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layoutHints) where
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import Operations ( applySizeHints, D )
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import Graphics.X11.Xlib
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import Graphics.X11.Xlib.Extras ( getWMNormalHints )
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import {-#SOURCE#-} Config (borderWidth)
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import XMonad hiding ( trace )
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-- $usage
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-- > import XMonadContrib.LayoutHints
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-- > defaultLayouts = [ layoutHints tiled , layoutHints $ mirror tiled ]
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-- | Expand a size by the given multiple of the border width. The
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-- multiple is most commonly 1 or -1.
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adjBorders :: Dimension -> D -> D
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adjBorders mult (w,h) = (w+2*mult*borderWidth, h+2*mult*borderWidth)
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layoutHints :: Layout Window -> Layout Window
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layoutHints l = l { doLayout = \r x -> doLayout l r x >>= applyHints
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, modifyLayout = \x -> fmap layoutHints `fmap` modifyLayout l x }
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applyHints :: [(Window, Rectangle)] -> X [(Window, Rectangle)]
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applyHints xs = mapM applyHint xs
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where applyHint (w,Rectangle a b c d) =
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withDisplay $ \disp ->
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do sh <- io $ getWMNormalHints disp w
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let (c',d') = adjBorders 1 . applySizeHints sh . adjBorders (-1) $ (c,d)
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return (w, Rectangle a b c' d')
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