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<title>XMonad/Layout/Square.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-4"></a><span class='hs-comment'>-- |</span>
<a name="line-5"></a><span class='hs-comment'>-- Module : XMonad.Layout.Square</span>
<a name="line-6"></a><span class='hs-comment'>-- Copyright : (c) David Roundy <droundy@darcs.net></span>
<a name="line-7"></a><span class='hs-comment'>-- License : BSD3-style (see LICENSE)</span>
<a name="line-8"></a><span class='hs-comment'>--</span>
<a name="line-9"></a><span class='hs-comment'>-- Maintainer : none</span>
<a name="line-10"></a><span class='hs-comment'>-- Stability : unstable</span>
<a name="line-11"></a><span class='hs-comment'>-- Portability : unportable</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- A layout that splits the screen into a square area and the rest of the</span>
<a name="line-14"></a><span class='hs-comment'>-- screen.</span>
<a name="line-15"></a><span class='hs-comment'>-- This is probably only ever useful in combination with</span>
<a name="line-16"></a><span class='hs-comment'>-- "XMonad.Layout.Combo".</span>
<a name="line-17"></a><span class='hs-comment'>-- It sticks one window in a square region, and makes the rest</span>
<a name="line-18"></a><span class='hs-comment'>-- of the windows live with what's left (in a full-screen sense).</span>
<a name="line-19"></a><span class='hs-comment'>--</span>
<a name="line-20"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-21"></a>
<a name="line-22"></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'>Square</span> <span class='hs-layout'>(</span>
<a name="line-23"></a> <span class='hs-comment'>-- * Usage</span>
<a name="line-24"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-25"></a> <span class='hs-conid'>Square</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-26"></a>
<a name="line-27"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>StackSet</span> <span class='hs-layout'>(</span> <span class='hs-varid'>integrate</span> <span class='hs-layout'>)</span>
<a name="line-29"></a>
<a name="line-30"></a><span class='hs-comment'>-- $usage</span>
<a name="line-31"></a><span class='hs-comment'>-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@ file:</span>
<a name="line-32"></a><span class='hs-comment'>--</span>
<a name="line-33"></a><span class='hs-comment'>-- > import XMonad.Layout.Square</span>
<a name="line-34"></a><span class='hs-comment'>--</span>
<a name="line-35"></a><span class='hs-comment'>-- An example layout using square together with "XMonad.Layout.Combo"</span>
<a name="line-36"></a><span class='hs-comment'>-- to make the very last area square:</span>
<a name="line-37"></a><span class='hs-comment'>--</span>
<a name="line-38"></a><span class='hs-comment'>-- > , combo (combo (mirror $ twoPane 0.03 0.85),1)] (twoPane 0.03 0.5) )</span>
<a name="line-39"></a><span class='hs-comment'>-- > [(twoPane 0.03 0.2,1),(combo [(twoPane 0.03 0.8,1),(square,1)]</span>
<a name="line-40"></a><span class='hs-comment'>-- > [(tabbed,3),(tabbed,30),(tabbed,1),(tabbed,1)]</span>
<a name="line-41"></a>
<a name="line-42"></a><span class='hs-comment'>-- For detailed instructions on editing your key bindings, see</span>
<a name="line-43"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_key_bindings".</span>
<a name="line-44"></a>
<a name="line-45"></a><a name="Square"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Square</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Square</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-46"></a>
<a name="line-47"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>LayoutClass</span> <span class='hs-conid'>Square</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>where</span>
<a name="line-48"></a> <span class='hs-varid'>pureLayout</span> <span class='hs-conid'>Square</span> <span class='hs-varid'>r</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>arrange</span> <span class='hs-layout'>(</span><span class='hs-varid'>integrate</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-49"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>arrange</span> <span class='hs-varid'>ws</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>w</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'>rest</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>init</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>last</span> <span class='hs-varid'>ws</span><span class='hs-layout'>,</span><span class='hs-varid'>sq</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-50"></a> <span class='hs-varid'>arrange</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span> <span class='hs-comment'>-- actually, this is an impossible case</span>
<a name="line-51"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rest</span><span class='hs-layout'>,</span> <span class='hs-varid'>sq</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitSquare</span> <span class='hs-varid'>r</span>
<a name="line-52"></a>
<a name="line-53"></a><a name="splitSquare"></a><span class='hs-definition'>splitSquare</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span>
<a name="line-54"></a><span class='hs-definition'>splitSquare</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>
<a name="line-55"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>w</span> <span class='hs-varop'>></span> <span class='hs-varid'>h</span> <span class='hs-keyglyph'>=</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-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-comment'>-</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-varid'>h</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-varop'>+</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'>h</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span> <span class='hs-varid'>h</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span>
<a name="line-56"></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-conid'>Rectangle</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>w</span> <span class='hs-layout'>(</span><span class='hs-varid'>h</span><span class='hs-comment'>-</span><span class='hs-varid'>w</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-layout'>(</span><span class='hs-varid'>y</span><span class='hs-varop'>+</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'>w</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>w</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span>
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