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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
{-# OPTIONS_GHC -fglasgow-exts #-}
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Layout.Magnifier
-- Copyright : (c) Peter De Wachter and Andrea Rossato 2007
-- License : BSD-style (see xmonad/LICENSE)
--
-- Maintainer : andrea.rossato@unibz.it
-- Stability : unstable
-- Portability : unportable
--
-- Screenshot : <http://caladan.rave.org/magnifier.png>
--
-- This is a layout modifier that will make a layout increase the size
-- of the window that has focus.
--
-----------------------------------------------------------------------------
module XMonad.Layout.Magnifier
( -- * Usage
-- $usage
magnifier,
magnifier',
magnifiercz,
magnifiercz',
MagnifyMsg (..)
) where
import XMonad
import XMonad.StackSet
import XMonad.Layout.LayoutModifier
-- $usage
-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:
--
-- > import XMonad.Layout.Magnifier
--
-- Then edit your @layoutHook@ by adding the 'magnifier' layout modifier
-- to some layout:
--
-- > myLayouts = magnifier (Tall 1 (3/100) (1/2)) ||| Full ||| etc..
-- > main = xmonad defaultConfig { layoutHook = myLayouts }
--
-- By default magnifier increases the focused window's size by 1.5.
-- You can also use:
--
-- > magnifiercz (12%10)
--
-- to use a custom level of magnification. You can even make the focused
-- window smaller for a pop in effect. Keep in mind, you must
--
-- > import Data.Ratio
--
-- in order to use rationals (such as @12%10@) in your config.
--
-- For more detailed instructions on editing the layoutHook see:
--
-- "XMonad.Doc.Extending#Editing_the_layout_hook"
--
-- Magnifier supports some commands. To use them add something like
-- this to your key bindings:
--
-- > , ((modMask x .|. controlMask , xK_plus ), sendMessage MagnifyMore)
-- > , ((modMask x .|. controlMask , xK_minus), sendMessage MagnifyLess)
-- > , ((modMask x .|. controlMask , xK_o ), sendMessage ToggleOff )
-- > , ((modMask x .|. controlMask .|. shiftMask, xK_o ), sendMessage ToggleOn )
--
-- For detailed instruction on editing the key binding see
-- "XMonad.Doc.Extending#Editing_key_bindings".
-- | Increase the size of the window that has focus
magnifier :: l a -> ModifiedLayout Magnifier l a
magnifier = ModifiedLayout (Mag 1.5 On All)
-- | Change the size of the window that has focus by a custom zoom
magnifiercz :: Rational -> l a -> ModifiedLayout Magnifier l a
magnifiercz cz = ModifiedLayout (Mag ((fromRational cz)*1.0::Double) On All)
-- | Increase the size of the window that has focus, unless if it is the
-- master window.
magnifier' :: l a -> ModifiedLayout Magnifier l a
magnifier' = ModifiedLayout (Mag 1.5 On NoMaster)
-- | Increase the size of the window that has focus by a custom zoom,
-- unless if it is the master window.
magnifiercz' :: Rational -> l a -> ModifiedLayout Magnifier l a
magnifiercz' cz = ModifiedLayout (Mag ((fromRational cz)*1.0::Double) On NoMaster)
data MagnifyMsg = MagnifyMore | MagnifyLess | ToggleOn | ToggleOff deriving ( Typeable )
instance Message MagnifyMsg
data Magnifier a = Mag Zoom Toggle MagnifyMaster deriving (Read, Show)
type Zoom = Double
data Toggle = On | Off deriving (Read, Show)
data MagnifyMaster = All | NoMaster deriving (Read, Show)
instance LayoutModifier Magnifier Window where
redoLayout (Mag z On All ) = applyMagnifier z
redoLayout (Mag z On NoMaster) = unlessMaster $ applyMagnifier z
redoLayout _ = nothing
where nothing _ _ wrs = return (wrs, Nothing)
handleMess (Mag z On t) m
| Just MagnifyMore <- fromMessage m = return . Just $ (Mag (z + 0.1) On t)
| Just MagnifyLess <- fromMessage m = return . Just $ (Mag (z - 0.1) On t)
| Just ToggleOff <- fromMessage m = return . Just $ (Mag (z + 0.1) Off t)
handleMess (Mag z Off t) m
| Just ToggleOn <- fromMessage m = return . Just $ (Mag z On t)
handleMess _ _ = return Nothing
modifierDescription (Mag _ On All ) = "Magnifier"
modifierDescription (Mag _ On NoMaster) = "Magnifier NoMaster"
modifierDescription (Mag _ Off _ ) = "Magnifier (off)"
type NewLayout a = Rectangle -> Stack a -> [(Window, Rectangle)] -> X ([(Window, Rectangle)], Maybe (Magnifier a))
unlessMaster :: NewLayout a -> NewLayout a
unlessMaster mainmod r s wrs = if null (up s) then return (wrs, Nothing)
else mainmod r s wrs
applyMagnifier :: Double -> Rectangle -> t -> [(Window, Rectangle)] -> X ([(Window, Rectangle)], Maybe a)
applyMagnifier z r _ wrs = do focused <- withWindowSet (return . peek)
let mag (w,wr) ws | focused == Just w = ws ++ [(w, shrink r $ magnify z wr)]
| otherwise = (w,wr) : ws
return (reverse $ foldr mag [] wrs, Nothing)
magnify :: Double -> Rectangle -> Rectangle
magnify zoom (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
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')
|
