1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses, DeriveDataTypeable, TypeSynonymInstances #-}
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Layout.Reflect
-- Copyright : (c) Brent Yorgey
-- License : BSD-style (see LICENSE)
--
-- Maintainer : <byorgey@gmail.com>
-- Stability : unstable
-- Portability : unportable
--
-- Reflect a layout horizontally or vertically.
-----------------------------------------------------------------------------
module XMonad.Layout.Reflect (
-- * Usage
-- $usage
reflectHoriz, reflectVert,
REFLECTX(..), REFLECTY(..)
) where
import XMonad.Core
import Graphics.X11 (Rectangle(..), Window)
import Control.Arrow (second)
import XMonad.Layout.LayoutModifier
import XMonad.Layout.MultiToggle
-- $usage
-- You can use this module by importing it into your @~\/.xmonad\/xmonad.hs@ file:
--
-- > import XMonad.Layout.Reflect
--
-- and modifying your layoutHook as follows (for example):
--
-- > layoutHook = reflectHoriz $ Tall 1 (3/100) (1/2) -- put master pane on the right
--
-- 'reflectHoriz' and 'reflectVert' can be applied to any sort of
-- layout (including Mirrored layouts) and will simply flip the
-- physical layout of the windows vertically or horizontally.
--
-- "XMonad.Layout.MultiToggle" transformers are also provided for
-- toggling layouts between reflected\/non-reflected with a keybinding.
-- To use this feature, you will also need to import the MultiToggle
-- module:
--
-- > import XMonad.Layout.MultiToggle
--
-- Next, add one or more toggles to your layout. For example, to allow
-- separate toggling of both vertical and horizontal reflection:
--
-- > layoutHook = mkToggle (single REFLECTX) $
-- > mkToggle (single REFLECTY) $
-- > (tiled ||| Mirror tiled ||| ...) -- whatever layouts you use
--
-- Finally, add some keybindings to do the toggling, for example:
--
-- > , ((modm .|. controlMask, xK_x), sendMessage $ Toggle REFLECTX)
-- > , ((modm .|. controlMask, xK_y), sendMessage $ Toggle REFLECTY)
--
-- | Apply a horizontal reflection (left \<--\> right) to a
-- layout.
reflectHoriz :: l a -> ModifiedLayout Reflect l a
reflectHoriz = ModifiedLayout (Reflect Horiz)
-- | Apply a vertical reflection (top \<--\> bottom) to a
-- layout.
reflectVert :: l a -> ModifiedLayout Reflect l a
reflectVert = ModifiedLayout (Reflect Vert)
data ReflectDir = Horiz | Vert
deriving (Read, Show)
-- | Given an axis of reflection and the enclosing rectangle which
-- contains all the laid out windows, transform a rectangle
-- representing a window into its flipped counterpart.
reflectRect :: ReflectDir -> Rectangle -> Rectangle -> Rectangle
reflectRect Horiz (Rectangle sx _ sw _) (Rectangle rx ry rw rh) =
Rectangle (2*sx + fi sw - rx - fi rw) ry rw rh
reflectRect Vert (Rectangle _ sy _ sh) (Rectangle rx ry rw rh) =
Rectangle rx (2*sy + fi sh - ry - fi rh) rw rh
fi :: (Integral a, Num b) => a -> b
fi = fromIntegral
data Reflect a = Reflect ReflectDir deriving (Show, Read)
instance LayoutModifier Reflect a where
-- reflect all the generated Rectangles.
pureModifier (Reflect d) r _ wrs = (map (second $ reflectRect d r) wrs, Just $ Reflect d)
modifierDescription (Reflect d) = "Reflect" ++ xy
where xy = case d of { Horiz -> "X" ; Vert -> "Y" }
-------- instances for MultiToggle ------------------
data REFLECTX = REFLECTX deriving (Read, Show, Eq, Typeable)
data REFLECTY = REFLECTY deriving (Read, Show, Eq, Typeable)
instance Transformer REFLECTX Window where
transform REFLECTX x k = k (reflectHoriz x) (\(ModifiedLayout _ x') -> x')
instance Transformer REFLECTY Window where
transform REFLECTY x k = k (reflectVert x) (\(ModifiedLayout _ x') -> x')
|
