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Diffstat (limited to 'XMonad/Layout/LayoutScreens.hs')
| -rw-r--r-- | XMonad/Layout/LayoutScreens.hs | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/XMonad/Layout/LayoutScreens.hs b/XMonad/Layout/LayoutScreens.hs new file mode 100644 index 0000000..7277681 --- /dev/null +++ b/XMonad/Layout/LayoutScreens.hs @@ -0,0 +1,84 @@ +{-# LANGUAGE FlexibleContexts, FlexibleInstances, MultiParamTypeClasses #-} + +----------------------------------------------------------------------------- +-- | +-- Module : XMonad.Layout.LayoutScreens +-- Copyright : (c) David Roundy <droundy@darcs.net> +-- License : BSD3-style (see LICENSE) +-- +-- Maintainer : David Roundy <droundy@darcs.net> +-- Stability : unstable +-- Portability : unportable +-- +----------------------------------------------------------------------------- + +module XMonad.Layout.LayoutScreens ( + -- * Usage + -- $usage + layoutScreens, fixedLayout + ) where + +import Control.Monad.Reader ( asks ) + +import XMonad +import qualified XMonad.StackSet as W +import qualified XMonad.Operations as O +import Graphics.X11.Xlib +import Graphics.X11.Xlib.Extras + +-- $usage +-- This module allows you to pretend that you have more than one screen by +-- dividing a single screen into multiple screens that xmonad will treat as +-- separate screens. This should definitely be useful for testing the +-- behavior of xmonad under Xinerama, and it's possible that it'd also be +-- handy for use as an actual user interface, if you've got a very large +-- screen and long for greater flexibility (e.g. being able to see your +-- email window at all times, a crude mimic of sticky windows). +-- +-- You can use this module with the following in your Config.hs file: +-- +-- > import XMonad.Layout.LayoutScreens +-- +-- > , ((modMask .|. shiftMask, xK_space), layoutScreens 2 (TwoPane 0.5 0.5)) +-- > , ((controlMask .|. modMask .|. shiftMask, xK_space), rescreen) +-- +-- Another example use would be to handle a scenario where xrandr didn't +-- work properly (e.g. a VNC X server in my case) and you want to be able +-- to resize your screen (e.g. to match the size of a remote VNC client): +-- +-- > import XMonad.Layout.LayoutScreens +-- +-- > , ((modMask .|. shiftMask, xK_space), +-- > layoutScreens 1 (fixedLayout $ Rectangle 0 0 1024 768)) +-- > , ((controlMask .|. modMask .|. shiftMask, xK_space), rescreen) + +-- %import XMonad.Layout.LayoutScreens +-- %keybind , ((modMask .|. shiftMask, xK_space), layoutScreens 2 (twoPane 0.5 0.5)) +-- %keybind , ((controlMask .|. modMask .|. shiftMask, xK_space), rescreen) + +layoutScreens :: LayoutClass l Int => Int -> l Int -> X () +layoutScreens nscr _ | nscr < 1 = trace $ "Can't layoutScreens with only " ++ show nscr ++ " screens." +layoutScreens nscr l = + do rtrect <- asks theRoot >>= getWindowRectangle + (wss, _) <- doLayout l rtrect W.Stack { W.focus=1, W.up=[],W.down=[1..nscr-1] } + O.windows $ \ws@(W.StackSet { W.current = v, W.visible = vs, W.hidden = hs }) -> + let (x:xs, ys) = splitAt nscr $ map W.workspace (v:vs) ++ hs + gaps = map (statusGap . W.screenDetail) $ v:vs + (s:ss, g:gg) = (map snd wss, take nscr $ gaps ++ repeat (head gaps)) + in ws { W.current = W.Screen x 0 (SD s g) + , W.visible = zipWith3 W.Screen xs [1 ..] $ zipWith SD ss gg + , W.hidden = ys } + +getWindowRectangle :: Window -> X Rectangle +getWindowRectangle w = withDisplay $ \d -> + do a <- io $ getWindowAttributes d w + return $ Rectangle (fromIntegral $ wa_x a) (fromIntegral $ wa_y a) + (fromIntegral $ wa_width a) (fromIntegral $ wa_height a) + +data FixedLayout a = FixedLayout [Rectangle] deriving (Read,Show) + +instance LayoutClass FixedLayout a where + doLayout (FixedLayout rs) _ s = return (zip (W.integrate s) rs, Nothing) + +fixedLayout :: [Rectangle] -> FixedLayout a +fixedLayout = FixedLayout |