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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable, MultiParamTypeClasses, TypeSynonymInstances, PatternGuards #-}</span>
<a name="line-2"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-3"></a><span class='hs-comment'>-- |</span>
<a name="line-4"></a><span class='hs-comment'>-- Module : XMonad.Layout.Magnifier</span>
<a name="line-5"></a><span class='hs-comment'>-- Copyright : (c) Peter De Wachter and Andrea Rossato 2007</span>
<a name="line-6"></a><span class='hs-comment'>-- License : BSD-style (see xmonad/LICENSE)</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Maintainer : andrea.rossato@unibz.it</span>
<a name="line-9"></a><span class='hs-comment'>-- Stability : unstable</span>
<a name="line-10"></a><span class='hs-comment'>-- Portability : unportable</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- Screenshot : <<a href="http://caladan.rave.org/magnifier.png">http://caladan.rave.org/magnifier.png</a>></span>
<a name="line-13"></a><span class='hs-comment'>--</span>
<a name="line-14"></a><span class='hs-comment'>-- This is a layout modifier that will make a layout increase the size</span>
<a name="line-15"></a><span class='hs-comment'>-- of the window that has focus.</span>
<a name="line-16"></a><span class='hs-comment'>--</span>
<a name="line-17"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-18"></a>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Layout</span><span class='hs-varop'>.</span><span class='hs-conid'>Magnifier</span>
<a name="line-21"></a> <span class='hs-layout'>(</span> <span class='hs-comment'>-- * Usage</span>
<a name="line-22"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-23"></a> <span class='hs-varid'>magnifier</span><span class='hs-layout'>,</span>
<a name="line-24"></a> <span class='hs-varid'>magnifier'</span><span class='hs-layout'>,</span>
<a name="line-25"></a> <span class='hs-varid'>magnifierOff</span><span class='hs-layout'>,</span>
<a name="line-26"></a> <span class='hs-varid'>magnifiercz</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-varid'>magnifiercz'</span><span class='hs-layout'>,</span>
<a name="line-28"></a> <span class='hs-varid'>maximizeVertical</span><span class='hs-layout'>,</span>
<a name="line-29"></a> <span class='hs-conid'>MagnifyMsg</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-30"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-31"></a>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>StackSet</span>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Layout</span><span class='hs-varop'>.</span><span class='hs-conid'>LayoutModifier</span>
<a name="line-35"></a>
<a name="line-36"></a><span class='hs-comment'>-- $usage</span>
<a name="line-37"></a><span class='hs-comment'>-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:</span>
<a name="line-38"></a><span class='hs-comment'>--</span>
<a name="line-39"></a><span class='hs-comment'>-- > import XMonad.Layout.Magnifier</span>
<a name="line-40"></a><span class='hs-comment'>--</span>
<a name="line-41"></a><span class='hs-comment'>-- Then edit your @layoutHook@ by adding the 'magnifier' layout modifier</span>
<a name="line-42"></a><span class='hs-comment'>-- to some layout:</span>
<a name="line-43"></a><span class='hs-comment'>--</span>
<a name="line-44"></a><span class='hs-comment'>-- > myLayout = magnifier (Tall 1 (3/100) (1/2)) ||| Full ||| etc..</span>
<a name="line-45"></a><span class='hs-comment'>-- > main = xmonad defaultConfig { layoutHook = myLayout }</span>
<a name="line-46"></a><span class='hs-comment'>--</span>
<a name="line-47"></a><span class='hs-comment'>-- By default magnifier increases the focused window's size by 1.5.</span>
<a name="line-48"></a><span class='hs-comment'>-- You can also use:</span>
<a name="line-49"></a><span class='hs-comment'>--</span>
<a name="line-50"></a><span class='hs-comment'>-- > magnifiercz 1.2</span>
<a name="line-51"></a><span class='hs-comment'>--</span>
<a name="line-52"></a><span class='hs-comment'>-- to use a custom level of magnification. You can even make the focused</span>
<a name="line-53"></a><span class='hs-comment'>-- window smaller for a pop in effect.</span>
<a name="line-54"></a><span class='hs-comment'>--</span>
<a name="line-55"></a><span class='hs-comment'>-- For more detailed instructions on editing the layoutHook see:</span>
<a name="line-56"></a><span class='hs-comment'>--</span>
<a name="line-57"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_the_layout_hook"</span>
<a name="line-58"></a><span class='hs-comment'>--</span>
<a name="line-59"></a><span class='hs-comment'>-- Magnifier supports some commands. To use them add something like</span>
<a name="line-60"></a><span class='hs-comment'>-- this to your key bindings:</span>
<a name="line-61"></a><span class='hs-comment'>--</span>
<a name="line-62"></a><span class='hs-comment'>-- > , ((modm .|. controlMask , xK_plus ), sendMessage MagnifyMore)</span>
<a name="line-63"></a><span class='hs-comment'>-- > , ((modm .|. controlMask , xK_minus), sendMessage MagnifyLess)</span>
<a name="line-64"></a><span class='hs-comment'>-- > , ((modm .|. controlMask , xK_o ), sendMessage ToggleOff )</span>
<a name="line-65"></a><span class='hs-comment'>-- > , ((modm .|. controlMask .|. shiftMask, xK_o ), sendMessage ToggleOn )</span>
<a name="line-66"></a><span class='hs-comment'>-- > , ((modm .|. controlMask , xK_m ), sendMessage Toggle )</span>
<a name="line-67"></a><span class='hs-comment'>--</span>
<a name="line-68"></a><span class='hs-comment'>-- Note that a few other extension modules, such as</span>
<a name="line-69"></a><span class='hs-comment'>-- "XMonad.Layout.MultiToggle" and "XMonad.Layout.ToggleLayouts", also</span>
<a name="line-70"></a><span class='hs-comment'>-- define a message named 'Toggle'. To avoid conflicts when using</span>
<a name="line-71"></a><span class='hs-comment'>-- these modules together, you can import Magnifier qualified, like</span>
<a name="line-72"></a><span class='hs-comment'>-- this:</span>
<a name="line-73"></a><span class='hs-comment'>--</span>
<a name="line-74"></a><span class='hs-comment'>-- > import qualified XMonad.Layout.Magnifier as Mag</span>
<a name="line-75"></a><span class='hs-comment'>--</span>
<a name="line-76"></a><span class='hs-comment'>-- and then prefix @Mag@ to the front of everything from this module,</span>
<a name="line-77"></a><span class='hs-comment'>-- like @Mag.Toggle@, @Mag.magnifier@, and so on.</span>
<a name="line-78"></a><span class='hs-comment'>--</span>
<a name="line-79"></a><span class='hs-comment'>-- For detailed instruction on editing the key binding see</span>
<a name="line-80"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_key_bindings".</span>
<a name="line-81"></a>
<a name="line-82"></a><a name="magnifier"></a><span class='hs-comment'>-- | Increase the size of the window that has focus</span>
<a name="line-83"></a><span class='hs-definition'>magnifier</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-conid'>Magnifier</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span>
<a name="line-84"></a><span class='hs-definition'>magnifier</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-layout'>(</span><span class='hs-num'>1.5</span><span class='hs-layout'>,</span><span class='hs-num'>1.5</span><span class='hs-layout'>)</span> <span class='hs-conid'>On</span> <span class='hs-conid'>All</span><span class='hs-layout'>)</span>
<a name="line-85"></a>
<a name="line-86"></a><a name="magnifiercz"></a><span class='hs-comment'>-- | Change the size of the window that has focus by a custom zoom</span>
<a name="line-87"></a><span class='hs-definition'>magnifiercz</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rational</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-conid'>Magnifier</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span>
<a name="line-88"></a><span class='hs-definition'>magnifiercz</span> <span class='hs-varid'>cz</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromRational</span> <span class='hs-varid'>cz</span><span class='hs-layout'>,</span> <span class='hs-varid'>fromRational</span> <span class='hs-varid'>cz</span><span class='hs-layout'>)</span> <span class='hs-conid'>On</span> <span class='hs-conid'>All</span><span class='hs-layout'>)</span>
<a name="line-89"></a>
<a name="line-90"></a><a name="magnifier'"></a><span class='hs-comment'>-- | Increase the size of the window that has focus, unless if it is the</span>
<a name="line-91"></a><span class='hs-comment'>-- master window.</span>
<a name="line-92"></a><span class='hs-definition'>magnifier'</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-conid'>Magnifier</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span>
<a name="line-93"></a><span class='hs-definition'>magnifier'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-layout'>(</span><span class='hs-num'>1.5</span><span class='hs-layout'>,</span><span class='hs-num'>1.5</span><span class='hs-layout'>)</span> <span class='hs-conid'>On</span> <span class='hs-conid'>NoMaster</span><span class='hs-layout'>)</span>
<a name="line-94"></a>
<a name="line-95"></a><a name="magnifierOff"></a><span class='hs-comment'>-- | Magnifier that defaults to Off</span>
<a name="line-96"></a><span class='hs-definition'>magnifierOff</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-conid'>Magnifier</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span>
<a name="line-97"></a><span class='hs-definition'>magnifierOff</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-layout'>(</span><span class='hs-num'>1.5</span><span class='hs-layout'>,</span><span class='hs-num'>1.5</span><span class='hs-layout'>)</span> <span class='hs-conid'>Off</span> <span class='hs-conid'>All</span><span class='hs-layout'>)</span>
<a name="line-98"></a>
<a name="line-99"></a><a name="magnifiercz'"></a><span class='hs-comment'>-- | Increase the size of the window that has focus by a custom zoom,</span>
<a name="line-100"></a><span class='hs-comment'>-- unless if it is the master window.</span>
<a name="line-101"></a><span class='hs-definition'>magnifiercz'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rational</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-conid'>Magnifier</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span>
<a name="line-102"></a><span class='hs-definition'>magnifiercz'</span> <span class='hs-varid'>cz</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromRational</span> <span class='hs-varid'>cz</span><span class='hs-layout'>,</span> <span class='hs-varid'>fromRational</span> <span class='hs-varid'>cz</span><span class='hs-layout'>)</span> <span class='hs-conid'>On</span> <span class='hs-conid'>NoMaster</span><span class='hs-layout'>)</span>
<a name="line-103"></a>
<a name="line-104"></a><a name="maximizeVertical"></a><span class='hs-comment'>-- | A magnifier that greatly magnifies just the vertical direction</span>
<a name="line-105"></a><span class='hs-definition'>maximizeVertical</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-conid'>Magnifier</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span>
<a name="line-106"></a><span class='hs-definition'>maximizeVertical</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span><span class='hs-num'>1000</span><span class='hs-layout'>)</span> <span class='hs-conid'>Off</span> <span class='hs-conid'>All</span><span class='hs-layout'>)</span>
<a name="line-107"></a>
<a name="line-108"></a><a name="MagnifyMsg"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>MagnifyMsg</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MagnifyMore</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>MagnifyLess</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ToggleOn</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ToggleOff</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Toggle</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Typeable</span> <span class='hs-layout'>)</span>
<a name="line-109"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Message</span> <span class='hs-conid'>MagnifyMsg</span>
<a name="line-110"></a>
<a name="line-111"></a><a name="Magnifier"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Magnifier</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Mag</span> <span class='hs-layout'>(</span><span class='hs-conid'>Double</span><span class='hs-layout'>,</span><span class='hs-conid'>Double</span><span class='hs-layout'>)</span> <span class='hs-conid'>Toggle</span> <span class='hs-conid'>MagnifyMaster</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Read</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>)</span>
<a name="line-112"></a>
<a name="line-113"></a><a name="Toggle"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Toggle</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>On</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Off</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Read</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>)</span>
<a name="line-114"></a><a name="MagnifyMaster"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>MagnifyMaster</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>All</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>NoMaster</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Read</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>)</span>
<a name="line-115"></a>
<a name="line-116"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>LayoutModifier</span> <span class='hs-conid'>Magnifier</span> <span class='hs-conid'>Window</span> <span class='hs-keyword'>where</span>
<a name="line-117"></a> <span class='hs-varid'>redoLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-varid'>z</span> <span class='hs-conid'>On</span> <span class='hs-conid'>All</span> <span class='hs-layout'>)</span> <span class='hs-varid'>r</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-varid'>wrs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>applyMagnifier</span> <span class='hs-varid'>z</span> <span class='hs-varid'>r</span> <span class='hs-varid'>s</span> <span class='hs-varid'>wrs</span>
<a name="line-118"></a> <span class='hs-varid'>redoLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-varid'>z</span> <span class='hs-conid'>On</span> <span class='hs-conid'>NoMaster</span><span class='hs-layout'>)</span> <span class='hs-varid'>r</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-varid'>wrs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unlessMaster</span> <span class='hs-layout'>(</span><span class='hs-varid'>applyMagnifier</span> <span class='hs-varid'>z</span><span class='hs-layout'>)</span> <span class='hs-varid'>r</span> <span class='hs-varid'>s</span> <span class='hs-varid'>wrs</span>
<a name="line-119"></a> <span class='hs-varid'>redoLayout</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>wrs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>wrs</span><span class='hs-layout'>,</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-120"></a>
<a name="line-121"></a> <span class='hs-varid'>handleMess</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-varid'>z</span> <span class='hs-conid'>On</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varid'>m</span>
<a name="line-122"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>MagnifyMore</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-layout'>(</span><span class='hs-varid'>z</span> <span class='hs-varop'>`addto`</span> <span class='hs-num'>0.1</span> <span class='hs-layout'>)</span> <span class='hs-conid'>On</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-123"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>MagnifyLess</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-layout'>(</span><span class='hs-varid'>z</span> <span class='hs-varop'>`addto`</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>0.1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>On</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-124"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>ToggleOff</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-layout'>(</span><span class='hs-varid'>z</span> <span class='hs-layout'>)</span> <span class='hs-conid'>Off</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-125"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>Toggle</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-layout'>(</span><span class='hs-varid'>z</span> <span class='hs-layout'>)</span> <span class='hs-conid'>Off</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-126"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>addto</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-varop'>+</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-varop'>+</span><span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-127"></a> <span class='hs-varid'>handleMess</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-varid'>z</span> <span class='hs-conid'>Off</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varid'>m</span>
<a name="line-128"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>ToggleOn</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-varid'>z</span> <span class='hs-conid'>On</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-129"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>Toggle</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-varid'>z</span> <span class='hs-conid'>On</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-130"></a> <span class='hs-varid'>handleMess</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-131"></a>
<a name="line-132"></a> <span class='hs-varid'>modifierDescription</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>On</span> <span class='hs-conid'>All</span> <span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Magnifier"</span>
<a name="line-133"></a> <span class='hs-varid'>modifierDescription</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>On</span> <span class='hs-conid'>NoMaster</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Magnifier NoMaster"</span>
<a name="line-134"></a> <span class='hs-varid'>modifierDescription</span> <span class='hs-layout'>(</span><span class='hs-conid'>Mag</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Off</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Magnifier (off)"</span>
<a name="line-135"></a>
<a name="line-136"></a><a name="NewLayout"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>NewLayout</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stack</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Window</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Window</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Magnifier</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-137"></a>
<a name="line-138"></a><a name="unlessMaster"></a><span class='hs-definition'>unlessMaster</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>NewLayout</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NewLayout</span> <span class='hs-varid'>a</span>
<a name="line-139"></a><span class='hs-definition'>unlessMaster</span> <span class='hs-varid'>mainmod</span> <span class='hs-varid'>r</span> <span class='hs-varid'>s</span> <span class='hs-varid'>wrs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-layout'>(</span><span class='hs-varid'>up</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>wrs</span><span class='hs-layout'>,</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-140"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>mainmod</span> <span class='hs-varid'>r</span> <span class='hs-varid'>s</span> <span class='hs-varid'>wrs</span>
<a name="line-141"></a>
<a name="line-142"></a><a name="applyMagnifier"></a><span class='hs-definition'>applyMagnifier</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Double</span><span class='hs-layout'>,</span><span class='hs-conid'>Double</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Window</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-143"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Window</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-conid'>Maybe</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-144"></a><span class='hs-definition'>applyMagnifier</span> <span class='hs-varid'>z</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>wrs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>focused</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>withWindowSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-varid'>peek</span><span class='hs-layout'>)</span>
<a name="line-145"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>mag</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-layout'>,</span><span class='hs-varid'>wr</span><span class='hs-layout'>)</span> <span class='hs-varid'>ws</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>focused</span> <span class='hs-varop'>==</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ws</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-layout'>,</span> <span class='hs-varid'>fit</span> <span class='hs-varid'>r</span> <span class='hs-varop'>$</span> <span class='hs-varid'>magnify</span> <span class='hs-varid'>z</span> <span class='hs-varid'>wr</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-146"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-layout'>,</span><span class='hs-varid'>wr</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>ws</span>
<a name="line-147"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varop'>$</span> <span class='hs-varid'>foldr</span> <span class='hs-varid'>mag</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>wrs</span><span class='hs-layout'>,</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-148"></a>
<a name="line-149"></a><a name="magnify"></a><span class='hs-definition'>magnify</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Double</span><span class='hs-layout'>,</span> <span class='hs-conid'>Double</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span>
<a name="line-150"></a><span class='hs-definition'>magnify</span> <span class='hs-layout'>(</span><span class='hs-varid'>zoomx</span><span class='hs-layout'>,</span><span class='hs-varid'>zoomy</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span> <span class='hs-varid'>x'</span> <span class='hs-varid'>y'</span> <span class='hs-varid'>w'</span> <span class='hs-varid'>h'</span>
<a name="line-151"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>x'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-comment'>-</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>w'</span> <span class='hs-comment'>-</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-varop'>`div`</span> <span class='hs-num'>2</span>
<a name="line-152"></a> <span class='hs-varid'>y'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>y</span> <span class='hs-comment'>-</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>h'</span> <span class='hs-comment'>-</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-varop'>`div`</span> <span class='hs-num'>2</span>
<a name="line-153"></a> <span class='hs-varid'>w'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>round</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>w</span> <span class='hs-varop'>*</span> <span class='hs-varid'>zoomx</span>
<a name="line-154"></a> <span class='hs-varid'>h'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>round</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>h</span> <span class='hs-varop'>*</span> <span class='hs-varid'>zoomy</span>
<a name="line-155"></a>
<a name="line-156"></a><a name="fit"></a><span class='hs-definition'>fit</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span>
<a name="line-157"></a><span class='hs-definition'>fit</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>sx</span> <span class='hs-varid'>sy</span> <span class='hs-varid'>sw</span> <span class='hs-varid'>sh</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span> <span class='hs-varid'>x'</span> <span class='hs-varid'>y'</span> <span class='hs-varid'>w'</span> <span class='hs-varid'>h'</span>
<a name="line-158"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>x'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>max</span> <span class='hs-varid'>sx</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-comment'>-</span> <span class='hs-layout'>(</span><span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fi</span> <span class='hs-varid'>w</span> <span class='hs-comment'>-</span> <span class='hs-varid'>sx</span> <span class='hs-comment'>-</span> <span class='hs-varid'>fi</span> <span class='hs-varid'>sw</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-159"></a> <span class='hs-varid'>y'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>max</span> <span class='hs-varid'>sy</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span> <span class='hs-comment'>-</span> <span class='hs-layout'>(</span><span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fi</span> <span class='hs-varid'>h</span> <span class='hs-comment'>-</span> <span class='hs-varid'>sy</span> <span class='hs-comment'>-</span> <span class='hs-varid'>fi</span> <span class='hs-varid'>sh</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-160"></a> <span class='hs-varid'>w'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>min</span> <span class='hs-varid'>sw</span> <span class='hs-varid'>w</span>
<a name="line-161"></a> <span class='hs-varid'>h'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>min</span> <span class='hs-varid'>sh</span> <span class='hs-varid'>h</span>
<a name="line-162"></a>
<a name="line-163"></a><a name="fi"></a><span class='hs-definition'>fi</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Num</span> <span class='hs-varid'>b</span><span class='hs-layout'>,</span> <span class='hs-conid'>Integral</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span>
<a name="line-164"></a><span class='hs-definition'>fi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span>
</pre></body>
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