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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'>-- Module : XMonad.Layout.Cross</span>
<a name="line-5"></a><span class='hs-comment'>-- Copyright : (c) Luis Cabellos <zhen.sydow@gmail.com></span>
<a name="line-6"></a><span class='hs-comment'>-- License : BSD3-style (see LICENSE)</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Maintainer : Luis Cabellos <zhen.sydow@gmail.com></span>
<a name="line-9"></a><span class='hs-comment'>-- Stability : stable</span>
<a name="line-10"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- A Cross Layout with the main window in the center.</span>
<a name="line-13"></a><span class='hs-comment'>--</span>
<a name="line-14"></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'>Cross</span><span class='hs-layout'>(</span>
<a name="line-15"></a> <span class='hs-comment'>-- * Usage</span>
<a name="line-16"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-17"></a> <span class='hs-varid'>simpleCross</span>
<a name="line-18"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Cross</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-19"></a>
<a name="line-20"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-layout'>(</span> <span class='hs-conid'>Dimension</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-layout'>,</span> <span class='hs-conid'>LayoutClass</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Resize</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>fromMessage</span> <span class='hs-layout'>)</span>
<a name="line-21"></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'>focus</span><span class='hs-layout'>,</span> <span class='hs-varid'>up</span><span class='hs-layout'>,</span> <span class='hs-varid'>down</span> <span class='hs-layout'>)</span>
<a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-layout'>(</span> <span class='hs-varid'>msum</span> <span class='hs-layout'>)</span>
<a name="line-23"></a>
<a name="line-24"></a><span class='hs-comment'>-- $usage</span>
<a name="line-25"></a><span class='hs-comment'>-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:</span>
<a name="line-26"></a><span class='hs-comment'>--</span>
<a name="line-27"></a><span class='hs-comment'>-- > import XMonad.Layout.Cross</span>
<a name="line-28"></a><span class='hs-comment'>--</span>
<a name="line-29"></a><span class='hs-comment'>-- Then edit your @layoutHook@ by adding one of the Cross layouts:</span>
<a name="line-30"></a><span class='hs-comment'>--</span>
<a name="line-31"></a><span class='hs-comment'>-- > myLayout = simpleCross ||| etc..</span>
<a name="line-32"></a><span class='hs-comment'>-- > main = xmonad defaultConfig { layoutHook = myLayout }</span>
<a name="line-33"></a><span class='hs-comment'>--</span>
<a name="line-34"></a>
<a name="line-35"></a><a name="%3c%25%3e"></a><span class='hs-comment'>-- apply a factor to a Rectangle Dimension</span>
<a name="line-36"></a><span class='hs-layout'>(</span><span class='hs-varop'><%></span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Dimension</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rational</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Dimension</span>
<a name="line-37"></a><a name="d"></a><span class='hs-definition'>d</span> <span class='hs-varop'><%></span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>floor</span> <span class='hs-varop'>$</span> <span class='hs-varid'>f</span> <span class='hs-varop'>*</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span>
<a name="line-38"></a>
<a name="line-39"></a><a name="Cross"></a><span class='hs-comment'>-- | The Cross Layout draws the focused window in the center of the screen</span>
<a name="line-40"></a><a name="Cross"></a><span class='hs-comment'>-- and part of the other windows on the sides. The 'Shrink' and 'Expand'</span>
<a name="line-41"></a><a name="Cross"></a><span class='hs-comment'>-- messages increment the size of the main window.</span>
<a name="line-42"></a><a name="Cross"></a><span class='hs-comment'>--</span>
<a name="line-43"></a><a name="Cross"></a><span class='hs-comment'>-- The focus keybindings change the center window, while other windows</span>
<a name="line-44"></a><a name="Cross"></a><span class='hs-comment'>-- cycle through the side positions. With the Cross layout only four</span>
<a name="line-45"></a><a name="Cross"></a><span class='hs-comment'>-- windows are shown around the focused window, two ups and two downs,</span>
<a name="line-46"></a><a name="Cross"></a><span class='hs-comment'>-- no matter how many are in the current stack. I.e. focus down cycles the</span>
<a name="line-47"></a><a name="Cross"></a><span class='hs-comment'>-- window below focused into the center; focus up cycles the window above.</span>
<a name="line-48"></a><a name="Cross"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Cross</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Cross</span> <span class='hs-layout'>{</span>
<a name="line-49"></a> <span class='hs-varid'>crossProp</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- ^ Proportion of screen occupied by the main window.</span>
<a name="line-50"></a> <span class='hs-varid'>crossInc</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span> <span class='hs-comment'>-- ^ Percent of main window to increment by when resizing.</span>
<a name="line-51"></a> <span class='hs-layout'>}</span>
<a name="line-52"></a> <span class='hs-keyword'>deriving</span><span class='hs-layout'>(</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span> <span class='hs-layout'>)</span>
<a name="line-53"></a>
<a name="line-54"></a><a name="simpleCross"></a><span class='hs-comment'>-- | A simple Cross Layout. It places the focused window in the center.</span>
<a name="line-55"></a><span class='hs-comment'>-- The proportion of the screen used by the main window is 4\/5.</span>
<a name="line-56"></a><span class='hs-definition'>simpleCross</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Cross</span> <span class='hs-varid'>a</span>
<a name="line-57"></a><span class='hs-definition'>simpleCross</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Cross</span> <span class='hs-layout'>(</span><span class='hs-num'>4</span><span class='hs-varop'>/</span><span class='hs-num'>5</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>100</span><span class='hs-layout'>)</span>
<a name="line-58"></a>
<a name="line-59"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>LayoutClass</span> <span class='hs-conid'>Cross</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>where</span>
<a name="line-60"></a> <span class='hs-varid'>pureLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Cross</span> <span class='hs-varid'>f</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>r</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>focus</span> <span class='hs-varid'>s</span><span class='hs-layout'>,</span> <span class='hs-varid'>mainRect</span> <span class='hs-varid'>r</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>++</span>
<a name="line-61"></a> <span class='hs-layout'>(</span><span class='hs-varid'>zip</span> <span class='hs-varid'>winCycle</span> <span class='hs-layout'>(</span><span class='hs-varid'>upRects</span> <span class='hs-varid'>r</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span>
<a name="line-62"></a> <span class='hs-layout'>(</span><span class='hs-varid'>zip</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>winCycle</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>downRects</span> <span class='hs-varid'>r</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-63"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>winCycle</span> <span class='hs-keyglyph'>=</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-varop'>++</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-layout'>(</span><span class='hs-varid'>down</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-64"></a>
<a name="line-65"></a> <span class='hs-varid'>pureMessage</span> <span class='hs-layout'>(</span><span class='hs-conid'>Cross</span> <span class='hs-varid'>f</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>msum</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>resize</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-66"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>resize</span> <span class='hs-conid'>Shrink</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Cross</span> <span class='hs-layout'>(</span><span class='hs-varid'>max</span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>100</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>f</span> <span class='hs-comment'>-</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-varid'>d</span>
<a name="line-67"></a> <span class='hs-varid'>resize</span> <span class='hs-conid'>Expand</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Cross</span> <span class='hs-layout'>(</span><span class='hs-varid'>min</span> <span class='hs-num'>1</span> <span class='hs-varop'>$</span> <span class='hs-varid'>f</span> <span class='hs-varop'>+</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-varid'>d</span>
<a name="line-68"></a>
<a name="line-69"></a> <span class='hs-varid'>description</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Cross"</span>
<a name="line-70"></a>
<a name="line-71"></a><a name="mainRect"></a><span class='hs-comment'>-- get the Rectangle for the focused window</span>
<a name="line-72"></a><span class='hs-definition'>mainRect</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rational</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span>
<a name="line-73"></a><span class='hs-definition'>mainRect</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>rx</span> <span class='hs-varid'>ry</span> <span class='hs-varid'>rw</span> <span class='hs-varid'>rh</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span>
<a name="line-74"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rx</span> <span class='hs-varop'>+</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>rw</span> <span class='hs-varop'><%></span> <span class='hs-varid'>invf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-75"></a> <span class='hs-layout'>(</span><span class='hs-varid'>ry</span> <span class='hs-varop'>+</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>rh</span> <span class='hs-varop'><%></span> <span class='hs-varid'>invf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-76"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rw</span> <span class='hs-varop'><%></span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>rh</span> <span class='hs-varop'><%></span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-77"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>invf</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span> <span class='hs-varop'>*</span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-comment'>-</span><span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-78"></a>
<a name="line-79"></a><a name="upRects"></a><span class='hs-comment'>-- get the rectangles for the up windows</span>
<a name="line-80"></a><span class='hs-definition'>upRects</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rational</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Rectangle</span><span class='hs-keyglyph'>]</span>
<a name="line-81"></a><span class='hs-definition'>upRects</span> <span class='hs-varid'>r</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>topRectangle</span> <span class='hs-varid'>r</span> <span class='hs-varid'>nf</span><span class='hs-layout'>,</span> <span class='hs-varid'>rightRectangle</span> <span class='hs-varid'>r</span> <span class='hs-varid'>nf</span><span class='hs-keyglyph'>]</span>
<a name="line-82"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>nf</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varop'>*</span> <span class='hs-layout'>(</span><span class='hs-num'>8</span><span class='hs-varop'>/</span><span class='hs-num'>10</span><span class='hs-layout'>)</span>
<a name="line-83"></a>
<a name="line-84"></a><a name="downRects"></a><span class='hs-comment'>-- get the rectangles for the down windows</span>
<a name="line-85"></a><span class='hs-definition'>downRects</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rational</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Rectangle</span><span class='hs-keyglyph'>]</span>
<a name="line-86"></a><span class='hs-definition'>downRects</span> <span class='hs-varid'>r</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>bottomRectangle</span> <span class='hs-varid'>r</span> <span class='hs-varid'>nf</span><span class='hs-layout'>,</span> <span class='hs-varid'>leftRectangle</span> <span class='hs-varid'>r</span> <span class='hs-varid'>nf</span><span class='hs-keyglyph'>]</span>
<a name="line-87"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>nf</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varop'>*</span> <span class='hs-layout'>(</span><span class='hs-num'>8</span><span class='hs-varop'>/</span><span class='hs-num'>10</span><span class='hs-layout'>)</span>
<a name="line-88"></a>
<a name="line-89"></a><a name="topRectangle"></a><span class='hs-definition'>topRectangle</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rational</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span>
<a name="line-90"></a><span class='hs-definition'>topRectangle</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>rx</span> <span class='hs-varid'>ry</span> <span class='hs-varid'>rw</span> <span class='hs-varid'>rh</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span>
<a name="line-91"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rx</span> <span class='hs-varop'>+</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>rw</span> <span class='hs-varop'><%></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-comment'>-</span><span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-varop'>*</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-92"></a> <span class='hs-varid'>ry</span>
<a name="line-93"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rw</span> <span class='hs-varop'><%></span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>rh</span> <span class='hs-varop'><%></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-comment'>-</span><span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-varop'>*</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-94"></a>
<a name="line-95"></a><a name="rightRectangle"></a><span class='hs-definition'>rightRectangle</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rational</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span>
<a name="line-96"></a><span class='hs-definition'>rightRectangle</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>rx</span> <span class='hs-varid'>ry</span> <span class='hs-varid'>rw</span> <span class='hs-varid'>rh</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span>
<a name="line-97"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rx</span> <span class='hs-varop'>+</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>rw</span> <span class='hs-comment'>-</span> <span class='hs-layout'>(</span><span class='hs-varid'>rw</span> <span class='hs-varop'><%></span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-98"></a> <span class='hs-layout'>(</span><span class='hs-varid'>ry</span> <span class='hs-varop'>+</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>rh</span> <span class='hs-varop'><%></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-comment'>-</span><span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-varop'>*</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-99"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rw</span> <span class='hs-varop'><%></span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>rh</span> <span class='hs-varop'><%></span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-100"></a>
<a name="line-101"></a><a name="bottomRectangle"></a><span class='hs-definition'>bottomRectangle</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rational</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span>
<a name="line-102"></a><span class='hs-definition'>bottomRectangle</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>rx</span> <span class='hs-varid'>ry</span> <span class='hs-varid'>rw</span> <span class='hs-varid'>rh</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span>
<a name="line-103"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rx</span> <span class='hs-varop'>+</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>rw</span> <span class='hs-varop'><%></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-comment'>-</span><span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-varop'>*</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-104"></a> <span class='hs-layout'>(</span><span class='hs-varid'>ry</span> <span class='hs-varop'>+</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>rh</span> <span class='hs-comment'>-</span> <span class='hs-layout'>(</span><span class='hs-varid'>rh</span> <span class='hs-varop'><%></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-comment'>-</span><span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-varop'>*</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-105"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rw</span> <span class='hs-varop'><%></span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>rh</span> <span class='hs-varop'><%></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-comment'>-</span><span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-varop'>*</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-106"></a>
<a name="line-107"></a><a name="leftRectangle"></a><span class='hs-definition'>leftRectangle</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rational</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span>
<a name="line-108"></a><span class='hs-definition'>leftRectangle</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>rx</span> <span class='hs-varid'>ry</span> <span class='hs-varid'>rw</span> <span class='hs-varid'>rh</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span>
<a name="line-109"></a> <span class='hs-varid'>rx</span>
<a name="line-110"></a> <span class='hs-layout'>(</span><span class='hs-varid'>ry</span> <span class='hs-varop'>+</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>rh</span> <span class='hs-varop'><%></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-comment'>-</span><span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-varop'>*</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-111"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rw</span> <span class='hs-varop'><%></span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>rh</span> <span class='hs-varop'><%></span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-112"></a>
</pre></body>
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