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<title>XMonad/Layout/GridVariants.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable, 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.GridVariants</span>
<a name="line-6"></a><span class='hs-comment'>-- Copyright : (c) Norbert Zeh</span>
<a name="line-7"></a><span class='hs-comment'>-- License : BSD-style (see LICENSE)</span>
<a name="line-8"></a><span class='hs-comment'>--</span>
<a name="line-9"></a><span class='hs-comment'>-- Maintainer : nzeh@cs.dal.ca</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'>-- Two layouts: one is a variant of the Grid layout that allows the</span>
<a name="line-14"></a><span class='hs-comment'>-- desired aspect ratio of windows to be specified. The other is like</span>
<a name="line-15"></a><span class='hs-comment'>-- Tall but places a grid with fixed number of rows and columns in the</span>
<a name="line-16"></a><span class='hs-comment'>-- master area and uses an aspect-ratio-specified layout for the</span>
<a name="line-17"></a><span class='hs-comment'>-- slaves.</span>
<a name="line-18"></a><span class='hs-comment'>----------------------------------------------------------------------</span>
<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'>GridVariants</span> <span class='hs-layout'>(</span> <span class='hs-comment'>-- * Usage</span>
<a name="line-21"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-22"></a> <span class='hs-conid'>ChangeMasterGridGeom</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-23"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>ChangeGridGeom</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-24"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Grid</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-25"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>TallGrid</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>SplitGrid</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-27"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Orientation</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-28"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-29"></a>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>StackSet</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>W</span>
<a name="line-33"></a>
<a name="line-34"></a><span class='hs-comment'>-- $usage</span>
<a name="line-35"></a><span class='hs-comment'>-- This module can be used as follows:</span>
<a name="line-36"></a><span class='hs-comment'>--</span>
<a name="line-37"></a><span class='hs-comment'>-- > import XMonad.Layout.GridVariants</span>
<a name="line-38"></a><span class='hs-comment'>--</span>
<a name="line-39"></a><span class='hs-comment'>-- Then add something like this to your layouts:</span>
<a name="line-40"></a><span class='hs-comment'>--</span>
<a name="line-41"></a><span class='hs-comment'>-- > Grid (16/10)</span>
<a name="line-42"></a><span class='hs-comment'>--</span>
<a name="line-43"></a><span class='hs-comment'>-- for a 16:10 aspect ratio grid, or</span>
<a name="line-44"></a><span class='hs-comment'>--</span>
<a name="line-45"></a><span class='hs-comment'>-- > SplitGrid L 2 3 (2/3) (16/10) (5/100)</span>
<a name="line-46"></a><span class='hs-comment'>--</span>
<a name="line-47"></a><span class='hs-comment'>-- for a layout with a 2x3 master grid that uses 2/3 of the screen,</span>
<a name="line-48"></a><span class='hs-comment'>-- and a 16:10 aspect ratio slave grid to its right. The last</span>
<a name="line-49"></a><span class='hs-comment'>-- parameter is again the percentage by which the split between master</span>
<a name="line-50"></a><span class='hs-comment'>-- and slave area changes in response to Expand/Shrink messages.</span>
<a name="line-51"></a><span class='hs-comment'>--</span>
<a name="line-52"></a><span class='hs-comment'>-- To be able to change the geometry of the master grid, add something</span>
<a name="line-53"></a><span class='hs-comment'>-- like this to your keybindings:</span>
<a name="line-54"></a><span class='hs-comment'>--</span>
<a name="line-55"></a><span class='hs-comment'>-- > ((modm .|. shiftMask, xK_equal), sendMessage $ IncMasterCols 1),</span>
<a name="line-56"></a><span class='hs-comment'>-- > ((modm .|. shiftMask, xK_minus), sendMessage $ IncMasterCols (-1)),</span>
<a name="line-57"></a><span class='hs-comment'>-- > ((modm .|. controlMask, xK_equal), sendMessage $ IncMasterRows 1),</span>
<a name="line-58"></a><span class='hs-comment'>-- > ((modm .|. controlMask, xK_minus), sendMessage $ IncMasterRows (-1))</span>
<a name="line-59"></a>
<a name="line-60"></a><a name="Grid"></a><span class='hs-comment'>-- | Grid layout. The parameter is the desired x:y aspect ratio of windows</span>
<a name="line-61"></a><a name="Grid"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Grid</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span>
<a name="line-62"></a> <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-63"></a>
<a name="line-64"></a><a name="instance%20LayoutClass%20Grid%20a"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>LayoutClass</span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>where</span>
<a name="line-65"></a>
<a name="line-66"></a> <span class='hs-varid'>pureLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-varid'>aspect</span><span class='hs-layout'>)</span> <span class='hs-varid'>rect</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>zip</span> <span class='hs-varid'>wins</span> <span class='hs-varid'>rects</span>
<a name="line-67"></a> <span class='hs-keyword'>where</span>
<a name="line-68"></a> <span class='hs-varid'>wins</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>integrate</span> <span class='hs-varid'>st</span>
<a name="line-69"></a> <span class='hs-varid'>nwins</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>wins</span>
<a name="line-70"></a> <span class='hs-varid'>rects</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>arrangeAspectGrid</span> <span class='hs-varid'>rect</span> <span class='hs-varid'>nwins</span> <span class='hs-varid'>aspect</span>
<a name="line-71"></a>
<a name="line-72"></a> <span class='hs-varid'>pureMessage</span> <span class='hs-varid'>layout</span> <span class='hs-varid'>msg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>changeGridAspect</span> <span class='hs-varid'>layout</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMessage</span> <span class='hs-varid'>msg</span><span class='hs-layout'>)</span>
<a name="line-73"></a>
<a name="line-74"></a> <span class='hs-varid'>description</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Grid"</span>
<a name="line-75"></a>
<a name="line-76"></a><a name="changeGridAspect"></a><span class='hs-definition'>changeGridAspect</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ChangeGridGeom</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-77"></a><span class='hs-definition'>changeGridAspect</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>SetGridAspect</span> <span class='hs-varid'>aspect</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>aspect</span>
<a name="line-78"></a><span class='hs-definition'>changeGridAspect</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-varid'>aspect</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChangeGridAspect</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-79"></a> <span class='hs-conid'>Grid</span> <span class='hs-layout'>(</span><span class='hs-varid'>max</span> <span class='hs-num'>0.00001</span> <span class='hs-layout'>(</span><span class='hs-varid'>aspect</span> <span class='hs-varop'>+</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-80"></a>
<a name="line-81"></a><a name="ChangeGridGeom"></a><span class='hs-comment'>-- |Geometry change messages understood by Grid and SplitGrid</span>
<a name="line-82"></a><a name="ChangeGridGeom"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ChangeGridGeom</span>
<a name="line-83"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>SetGridAspect</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span>
<a name="line-84"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ChangeGridAspect</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span>
<a name="line-85"></a> <span class='hs-keyword'>deriving</span> <span class='hs-conid'>Typeable</span>
<a name="line-86"></a>
<a name="line-87"></a><a name="instance%20Message%20ChangeGridGeom%20--%20%7cSplitGrid%20layout.%20Parameters%20are%20--%20--%20-%20side%20where%20the%20master%20is%20--%20-%20number%20of%20master%20rows%20--%20-%20number%20of%20master%20columns%20--%20-%20portion%20of%20screen%20used%20for%20master%20grid%20--%20-%20x:y%20aspect%20ratio%20of%20slave%20windows%20--%20-%20increment%20for%20resize%20messages%20data%20SplitGrid%20a%20=%20SplitGrid%20Orientation%20!Int%20!Int%20!Rational%20!Rational%20!Rational%20deriving%20(Read,%20Show)%20--%20%7cType%20to%20specify%20the%20side%20of%20the%20screen%20that%20holds%20--%20the%20master%20area%20of%20a%20SplitGrid.%20data%20Orientation%20=%20T%20%7c%20B%20%7c%20L%20%7c%20R%20deriving%20(Eq,%20Read,%20Show)%20instance%20LayoutClass%20SplitGrid%20a"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Message</span> <span class='hs-conid'>ChangeGridGeom</span>
<a name="line-88"></a>
<a name="line-89"></a><a name="SplitGrid"></a><span class='hs-comment'>-- |SplitGrid layout. Parameters are</span>
<a name="line-90"></a><a name="SplitGrid"></a><span class='hs-comment'>--</span>
<a name="line-91"></a><a name="SplitGrid"></a><span class='hs-comment'>-- - side where the master is</span>
<a name="line-92"></a><a name="SplitGrid"></a><span class='hs-comment'>-- - number of master rows</span>
<a name="line-93"></a><a name="SplitGrid"></a><span class='hs-comment'>-- - number of master columns</span>
<a name="line-94"></a><a name="SplitGrid"></a><span class='hs-comment'>-- - portion of screen used for master grid</span>
<a name="line-95"></a><a name="SplitGrid"></a><span class='hs-comment'>-- - x:y aspect ratio of slave windows</span>
<a name="line-96"></a><a name="SplitGrid"></a><span class='hs-comment'>-- - increment for resize messages</span>
<a name="line-97"></a><a name="SplitGrid"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>SplitGrid</span> <span class='hs-conid'>Orientation</span> <span class='hs-varop'>!</span><span class='hs-conid'>Int</span> <span class='hs-varop'>!</span><span class='hs-conid'>Int</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span>
<a name="line-98"></a> <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-99"></a>
<a name="line-100"></a><a name="Orientation"></a><span class='hs-comment'>-- |Type to specify the side of the screen that holds</span>
<a name="line-101"></a><a name="Orientation"></a><span class='hs-comment'>-- the master area of a SplitGrid.</span>
<a name="line-102"></a><a name="Orientation"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Orientation</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>B</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>R</span>
<a name="line-103"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</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-104"></a>
<a name="line-105"></a><a name="instance%20LayoutClass%20SplitGrid%20a"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>LayoutClass</span> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>where</span>
<a name="line-106"></a>
<a name="line-107"></a> <span class='hs-varid'>pureLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>rect</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>zip</span> <span class='hs-varid'>wins</span> <span class='hs-varid'>rects</span>
<a name="line-108"></a> <span class='hs-keyword'>where</span>
<a name="line-109"></a> <span class='hs-varid'>wins</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>integrate</span> <span class='hs-varid'>st</span>
<a name="line-110"></a> <span class='hs-varid'>nwins</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>wins</span>
<a name="line-111"></a> <span class='hs-varid'>rects</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>arrangeSplitGrid</span> <span class='hs-varid'>rect</span> <span class='hs-varid'>o</span> <span class='hs-varid'>nwins</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span>
<a name="line-112"></a>
<a name="line-113"></a> <span class='hs-varid'>pureMessage</span> <span class='hs-varid'>layout</span> <span class='hs-varid'>msg</span> <span class='hs-keyglyph'>=</span>
<a name="line-114"></a> <span class='hs-varid'>msum</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>resizeMaster</span> <span class='hs-varid'>layout</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMessage</span> <span class='hs-varid'>msg</span><span class='hs-layout'>)</span>
<a name="line-115"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>changeMasterGrid</span> <span class='hs-varid'>layout</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMessage</span> <span class='hs-varid'>msg</span><span class='hs-layout'>)</span>
<a name="line-116"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>changeSlaveGridAspect</span> <span class='hs-varid'>layout</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMessage</span> <span class='hs-varid'>msg</span><span class='hs-layout'>)</span>
<a name="line-117"></a> <span class='hs-keyglyph'>]</span>
<a name="line-118"></a>
<a name="line-119"></a> <span class='hs-varid'>description</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"SplitGrid"</span>
<a name="line-120"></a>
<a name="line-121"></a><a name="ChangeMasterGridGeom"></a><span class='hs-comment'>-- |The geometry change message understood by the master grid</span>
<a name="line-122"></a><a name="ChangeMasterGridGeom"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ChangeMasterGridGeom</span>
<a name="line-123"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>IncMasterRows</span> <span class='hs-varop'>!</span><span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^Change the number of master rows</span>
<a name="line-124"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>IncMasterCols</span> <span class='hs-varop'>!</span><span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^Change the number of master columns</span>
<a name="line-125"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>SetMasterRows</span> <span class='hs-varop'>!</span><span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^Set the number of master rows to absolute value</span>
<a name="line-126"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>SetMasterCols</span> <span class='hs-varop'>!</span><span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^Set the number of master columns to absolute value</span>
<a name="line-127"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>SetMasterFraction</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span> <span class='hs-comment'>-- ^Set the fraction of the screen used by the master grid</span>
<a name="line-128"></a> <span class='hs-keyword'>deriving</span> <span class='hs-conid'>Typeable</span>
<a name="line-129"></a>
<a name="line-130"></a><a name="instance%20Message%20ChangeMasterGridGeom%20arrangeSplitGrid%20::%20Rectangle%20-%3e%20Orientation%20-%3e%20Int%20-%3e%20Int%20-%3e%20Int%20-%3e%20Rational%20-%3e%20Rational%20-%3e%20%5bRectangle%5d%20arrangeSplitGrid%20rect@(Rectangle%20rx%20ry%20rw%20rh)%20o%20nwins%20mrows%20mcols%20mfrac%20saspect%20%7c%20nwins%20%3c=%20mwins%20=%20arrangeMasterGrid%20rect%20nwins%20mcols%20%7c%20mwins%20==%200%20=%20arrangeAspectGrid%20rect%20nwins%20saspect%20%7c%20otherwise%20=%20(arrangeMasterGrid%20mrect%20mwins%20mcols)%20++%20(arrangeAspectGrid%20srect%20swins%20saspect)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Message</span> <span class='hs-conid'>ChangeMasterGridGeom</span>
<a name="line-131"></a>
<a name="line-132"></a><a name="arrangeSplitGrid"></a><span class='hs-definition'>arrangeSplitGrid</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Orientation</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rational</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-133"></a><span class='hs-definition'>arrangeSplitGrid</span> <span class='hs-varid'>rect</span><span class='hs-keyglyph'>@</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'>o</span> <span class='hs-varid'>nwins</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span>
<a name="line-134"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>nwins</span> <span class='hs-varop'><=</span> <span class='hs-varid'>mwins</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>arrangeMasterGrid</span> <span class='hs-varid'>rect</span> <span class='hs-varid'>nwins</span> <span class='hs-varid'>mcols</span>
<a name="line-135"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>mwins</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>arrangeAspectGrid</span> <span class='hs-varid'>rect</span> <span class='hs-varid'>nwins</span> <span class='hs-varid'>saspect</span>
<a name="line-136"></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'>arrangeMasterGrid</span> <span class='hs-varid'>mrect</span> <span class='hs-varid'>mwins</span> <span class='hs-varid'>mcols</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span>
<a name="line-137"></a> <span class='hs-layout'>(</span><span class='hs-varid'>arrangeAspectGrid</span> <span class='hs-varid'>srect</span> <span class='hs-varid'>swins</span> <span class='hs-varid'>saspect</span><span class='hs-layout'>)</span>
<a name="line-138"></a> <span class='hs-keyword'>where</span>
<a name="line-139"></a> <span class='hs-varid'>mwins</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mrows</span> <span class='hs-varop'>*</span> <span class='hs-varid'>mcols</span>
<a name="line-140"></a> <span class='hs-varid'>swins</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nwins</span> <span class='hs-comment'>-</span> <span class='hs-varid'>mwins</span>
<a name="line-141"></a> <span class='hs-varid'>mrect</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span> <span class='hs-varid'>mx</span> <span class='hs-varid'>my</span> <span class='hs-varid'>mw</span> <span class='hs-varid'>mh</span>
<a name="line-142"></a> <span class='hs-varid'>srect</span> <span class='hs-keyglyph'>=</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>
<a name="line-143"></a> <span class='hs-layout'>(</span><span class='hs-varid'>mh</span><span class='hs-layout'>,</span> <span class='hs-varid'>sh</span><span class='hs-layout'>,</span> <span class='hs-varid'>mw</span><span class='hs-layout'>,</span> <span class='hs-varid'>sw</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>o</span> <span class='hs-varop'>`elem`</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>T</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-keyglyph'>]</span> <span class='hs-keyword'>then</span>
<a name="line-144"></a> <span class='hs-layout'>(</span><span class='hs-varid'>ceiling</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>rh</span> <span class='hs-varop'>*</span> <span class='hs-varid'>mfrac</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>rh</span> <span class='hs-comment'>-</span> <span class='hs-varid'>mh</span><span class='hs-layout'>,</span> <span class='hs-varid'>rw</span><span class='hs-layout'>,</span> <span class='hs-varid'>rw</span><span class='hs-layout'>)</span>
<a name="line-145"></a> <span class='hs-keyword'>else</span>
<a name="line-146"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rh</span><span class='hs-layout'>,</span> <span class='hs-varid'>rh</span><span class='hs-layout'>,</span> <span class='hs-varid'>ceiling</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>rw</span> <span class='hs-varop'>*</span> <span class='hs-varid'>mfrac</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>rw</span> <span class='hs-comment'>-</span> <span class='hs-varid'>mw</span><span class='hs-layout'>)</span>
<a name="line-147"></a> <span class='hs-varid'>mx</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>rx</span> <span class='hs-varop'>+</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>o</span> <span class='hs-varop'>==</span> <span class='hs-conid'>R</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>sw</span> <span class='hs-keyword'>else</span> <span class='hs-num'>0</span>
<a name="line-148"></a> <span class='hs-varid'>my</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>ry</span> <span class='hs-varop'>+</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>o</span> <span class='hs-varop'>==</span> <span class='hs-conid'>B</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>sh</span> <span class='hs-keyword'>else</span> <span class='hs-num'>0</span>
<a name="line-149"></a> <span class='hs-varid'>sx</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>rx</span> <span class='hs-varop'>+</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>o</span> <span class='hs-varop'>==</span> <span class='hs-conid'>L</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>mw</span> <span class='hs-keyword'>else</span> <span class='hs-num'>0</span>
<a name="line-150"></a> <span class='hs-varid'>sy</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>ry</span> <span class='hs-varop'>+</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>o</span> <span class='hs-varop'>==</span> <span class='hs-conid'>T</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>mh</span> <span class='hs-keyword'>else</span> <span class='hs-num'>0</span>
<a name="line-151"></a>
<a name="line-152"></a><a name="arrangeMasterGrid"></a><span class='hs-definition'>arrangeMasterGrid</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</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-153"></a><span class='hs-definition'>arrangeMasterGrid</span> <span class='hs-varid'>rect</span> <span class='hs-varid'>nwins</span> <span class='hs-varid'>mcols</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>arrangeGrid</span> <span class='hs-varid'>rect</span> <span class='hs-varid'>nwins</span> <span class='hs-layout'>(</span><span class='hs-varid'>min</span> <span class='hs-varid'>nwins</span> <span class='hs-varid'>mcols</span><span class='hs-layout'>)</span>
<a name="line-154"></a>
<a name="line-155"></a><a name="arrangeAspectGrid"></a><span class='hs-definition'>arrangeAspectGrid</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</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-156"></a><span class='hs-definition'>arrangeAspectGrid</span> <span class='hs-varid'>rect</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>rw</span> <span class='hs-varid'>rh</span><span class='hs-layout'>)</span> <span class='hs-varid'>nwins</span> <span class='hs-varid'>aspect</span> <span class='hs-keyglyph'>=</span>
<a name="line-157"></a> <span class='hs-varid'>arrangeGrid</span> <span class='hs-varid'>rect</span> <span class='hs-varid'>nwins</span> <span class='hs-layout'>(</span><span class='hs-varid'>min</span> <span class='hs-varid'>nwins</span> <span class='hs-varid'>ncols</span><span class='hs-layout'>)</span>
<a name="line-158"></a> <span class='hs-keyword'>where</span>
<a name="line-159"></a> <span class='hs-varid'>scr_a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>rw</span> <span class='hs-varop'>/</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>rh</span>
<a name="line-160"></a> <span class='hs-varid'>fcols</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sqrt</span> <span class='hs-layout'>(</span> <span class='hs-varid'>fromRational</span> <span class='hs-varop'>$</span> <span class='hs-varid'>scr_a</span> <span class='hs-varop'>*</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>nwins</span> <span class='hs-varop'>/</span> <span class='hs-varid'>aspect</span> <span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Double</span>
<a name="line-161"></a> <span class='hs-varid'>cols1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>floor</span> <span class='hs-varid'>fcols</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-162"></a> <span class='hs-varid'>cols2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ceiling</span> <span class='hs-varid'>fcols</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-163"></a> <span class='hs-varid'>rows1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ceiling</span> <span class='hs-layout'>(</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>nwins</span> <span class='hs-varop'>/</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>cols1</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rational</span> <span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-164"></a> <span class='hs-varid'>rows2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>floor</span> <span class='hs-layout'>(</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>nwins</span> <span class='hs-varop'>/</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>cols2</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rational</span> <span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-165"></a> <span class='hs-varid'>a1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>scr_a</span> <span class='hs-varop'>*</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>rows1</span> <span class='hs-varop'>/</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>cols1</span>
<a name="line-166"></a> <span class='hs-varid'>a2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>scr_a</span> <span class='hs-varop'>*</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>rows2</span> <span class='hs-varop'>/</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>cols2</span>
<a name="line-167"></a> <span class='hs-varid'>ncols</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>cols1</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cols2</span>
<a name="line-168"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>rows2</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cols1</span>
<a name="line-169"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>a1</span> <span class='hs-varop'>/</span> <span class='hs-varid'>aspect</span> <span class='hs-varop'><</span> <span class='hs-varid'>aspect</span> <span class='hs-varop'>/</span> <span class='hs-varid'>a2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cols1</span>
<a name="line-170"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cols2</span>
<a name="line-171"></a>
<a name="line-172"></a><a name="arrangeGrid"></a><span class='hs-definition'>arrangeGrid</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</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-173"></a><span class='hs-definition'>arrangeGrid</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'>nwins</span> <span class='hs-varid'>ncols</span> <span class='hs-keyglyph'>=</span>
<a name="line-174"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Rectangle</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>x</span> <span class='hs-varop'>+</span> <span class='hs-varid'>rx</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>y</span> <span class='hs-varop'>+</span> <span class='hs-varid'>ry</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span>
<a name="line-175"></a> <span class='hs-keyglyph'>|</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'>w</span><span class='hs-layout'>,</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>rects</span><span class='hs-keyglyph'>]</span>
<a name="line-176"></a> <span class='hs-keyword'>where</span>
<a name="line-177"></a> <span class='hs-varid'>nrows_in_cols</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>listDifference</span> <span class='hs-varop'>$</span> <span class='hs-varid'>splitEvenly</span> <span class='hs-varid'>nwins</span> <span class='hs-varid'>ncols</span>
<a name="line-178"></a> <span class='hs-varid'>x_slabs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitIntoSlabs</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>rw</span><span class='hs-layout'>)</span> <span class='hs-varid'>ncols</span>
<a name="line-179"></a> <span class='hs-varid'>y_slabs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>splitIntoSlabs</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>rh</span><span class='hs-layout'>)</span> <span class='hs-varid'>nrows</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>nrows</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>nrows_in_cols</span><span class='hs-keyglyph'>]</span>
<a name="line-180"></a> <span class='hs-varid'>rects_in_cols</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-keyglyph'>[</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'>w</span><span class='hs-layout'>,</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-layout'>,</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lst</span><span class='hs-keyglyph'>]</span>
<a name="line-181"></a> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>lst</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>zip</span> <span class='hs-varid'>x_slabs</span> <span class='hs-varid'>y_slabs</span><span class='hs-keyglyph'>]</span>
<a name="line-182"></a> <span class='hs-varid'>rects</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldr</span> <span class='hs-layout'>(</span><span class='hs-varop'>++</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>rects_in_cols</span>
<a name="line-183"></a>
<a name="line-184"></a><a name="splitIntoSlabs"></a><span class='hs-definition'>splitIntoSlabs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Int</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-185"></a><span class='hs-definition'>splitIntoSlabs</span> <span class='hs-varid'>width</span> <span class='hs-varid'>nslabs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>zip</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-varid'>widths</span>
<a name="line-186"></a> <span class='hs-keyword'>where</span>
<a name="line-187"></a> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitEvenly</span> <span class='hs-varid'>width</span> <span class='hs-varid'>nslabs</span>
<a name="line-188"></a> <span class='hs-varid'>widths</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>listDifference</span> <span class='hs-varid'>xs</span>
<a name="line-189"></a>
<a name="line-190"></a><a name="listDifference"></a><span class='hs-definition'>listDifference</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Int</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Int</span><span class='hs-keyglyph'>]</span>
<a name="line-191"></a><span class='hs-definition'>listDifference</span> <span class='hs-varid'>lst</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>cur</span><span class='hs-comment'>-</span><span class='hs-varid'>pre</span> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>cur</span><span class='hs-layout'>,</span><span class='hs-varid'>pre</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>zip</span> <span class='hs-varid'>lst</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-conop'>:</span><span class='hs-varid'>lst</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-192"></a>
<a name="line-193"></a><a name="splitEvenly"></a><span class='hs-definition'>splitEvenly</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Int</span><span class='hs-keyglyph'>]</span>
<a name="line-194"></a><span class='hs-definition'>splitEvenly</span> <span class='hs-varid'>n</span> <span class='hs-varid'>parts</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>sz</span><span class='hs-comment'>-</span><span class='hs-varid'>off</span> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>sz</span><span class='hs-layout'>,</span><span class='hs-varid'>off</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>zip</span> <span class='hs-varid'>sizes</span> <span class='hs-varid'>offsets</span><span class='hs-keyglyph'>]</span>
<a name="line-195"></a> <span class='hs-keyword'>where</span>
<a name="line-196"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ceiling</span> <span class='hs-layout'>(</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>n</span> <span class='hs-varop'>/</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>parts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Double</span> <span class='hs-layout'>)</span>
<a name="line-197"></a> <span class='hs-varid'>extra</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>size</span><span class='hs-varop'>*</span><span class='hs-varid'>parts</span> <span class='hs-comment'>-</span> <span class='hs-varid'>n</span>
<a name="line-198"></a> <span class='hs-varid'>sizes</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>i</span><span class='hs-varop'>*</span><span class='hs-varid'>size</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyglyph'>[</span><span class='hs-num'>1</span><span class='hs-keyglyph'>..</span><span class='hs-varid'>parts</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span>
<a name="line-199"></a> <span class='hs-varid'>offsets</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>take</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-num'>1</span><span class='hs-keyglyph'>..</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>extra</span><span class='hs-layout'>,</span><span class='hs-varid'>extra</span><span class='hs-keyglyph'>..</span><span class='hs-keyglyph'>]</span>
<a name="line-200"></a>
<a name="line-201"></a><a name="resizeMaster"></a><span class='hs-definition'>resizeMaster</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Resize</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>a</span>
<a name="line-202"></a><span class='hs-definition'>resizeMaster</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-conid'>Shrink</span> <span class='hs-keyglyph'>=</span>
<a name="line-203"></a> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</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'>mfrac</span> <span class='hs-comment'>-</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span>
<a name="line-204"></a><span class='hs-definition'>resizeMaster</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-conid'>Expand</span> <span class='hs-keyglyph'>=</span>
<a name="line-205"></a> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-layout'>(</span><span class='hs-varid'>min</span> <span class='hs-num'>1</span> <span class='hs-layout'>(</span><span class='hs-varid'>mfrac</span> <span class='hs-varop'>+</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span>
<a name="line-206"></a>
<a name="line-207"></a><a name="changeMasterGrid"></a><span class='hs-definition'>changeMasterGrid</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ChangeMasterGridGeom</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>a</span>
<a name="line-208"></a><span class='hs-definition'>changeMasterGrid</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>IncMasterRows</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-209"></a> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</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'>mrows</span> <span class='hs-varop'>+</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span>
<a name="line-210"></a><span class='hs-definition'>changeMasterGrid</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>IncMasterCols</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-211"></a> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</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'>mcols</span> <span class='hs-varop'>+</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span>
<a name="line-212"></a><span class='hs-definition'>changeMasterGrid</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>SetMasterRows</span> <span class='hs-varid'>mrows</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-213"></a> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-layout'>(</span><span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-varid'>mrows</span><span class='hs-layout'>)</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span>
<a name="line-214"></a><span class='hs-definition'>changeMasterGrid</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>SetMasterCols</span> <span class='hs-varid'>mcols</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-215"></a> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-layout'>(</span><span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-varid'>mcols</span><span class='hs-layout'>)</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span>
<a name="line-216"></a><span class='hs-definition'>changeMasterGrid</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>SetMasterFraction</span> <span class='hs-varid'>mfrac</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-217"></a> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span>
<a name="line-218"></a>
<a name="line-219"></a><a name="changeSlaveGridAspect"></a><span class='hs-definition'>changeSlaveGridAspect</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ChangeGridGeom</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>a</span>
<a name="line-220"></a><span class='hs-definition'>changeSlaveGridAspect</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>SetGridAspect</span> <span class='hs-varid'>saspect</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-221"></a> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span>
<a name="line-222"></a><span class='hs-definition'>changeSlaveGridAspect</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChangeGridAspect</span> <span class='hs-varid'>sdelta</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-223"></a> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>o</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-layout'>(</span><span class='hs-varid'>max</span> <span class='hs-num'>0.00001</span> <span class='hs-layout'>(</span><span class='hs-varid'>saspect</span> <span class='hs-varop'>+</span> <span class='hs-varid'>sdelta</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>delta</span>
<a name="line-224"></a>
<a name="line-225"></a><a name="TallGrid"></a><span class='hs-comment'>-- | TallGrid layout. Parameters are</span>
<a name="line-226"></a><a name="TallGrid"></a><span class='hs-comment'>--</span>
<a name="line-227"></a><a name="TallGrid"></a><span class='hs-comment'>-- - number of master rows</span>
<a name="line-228"></a><a name="TallGrid"></a><span class='hs-comment'>-- - number of master columns</span>
<a name="line-229"></a><a name="TallGrid"></a><span class='hs-comment'>-- - portion of screen used for master grid</span>
<a name="line-230"></a><a name="TallGrid"></a><span class='hs-comment'>-- - x:y aspect ratio of slave windows</span>
<a name="line-231"></a><a name="TallGrid"></a><span class='hs-comment'>-- - increment for resize messages</span>
<a name="line-232"></a><a name="TallGrid"></a><span class='hs-comment'>--</span>
<a name="line-233"></a><a name="TallGrid"></a><span class='hs-comment'>-- This exists mostly because it was introduced in an earlier version.</span>
<a name="line-234"></a><a name="TallGrid"></a><span class='hs-comment'>-- It's a fairly thin wrapper around "SplitGrid L".</span>
<a name="line-235"></a><a name="TallGrid"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>TallGrid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TallGrid</span> <span class='hs-varop'>!</span><span class='hs-conid'>Int</span> <span class='hs-varop'>!</span><span class='hs-conid'>Int</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span> <span class='hs-varop'>!</span><span class='hs-conid'>Rational</span>
<a name="line-236"></a> <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-237"></a>
<a name="line-238"></a><a name="instance%20LayoutClass%20TallGrid%20a"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>LayoutClass</span> <span class='hs-conid'>TallGrid</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>where</span>
<a name="line-239"></a>
<a name="line-240"></a> <span class='hs-varid'>pureLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>TallGrid</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>rect</span> <span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>zip</span> <span class='hs-varid'>wins</span> <span class='hs-varid'>rects</span>
<a name="line-241"></a> <span class='hs-keyword'>where</span>
<a name="line-242"></a> <span class='hs-varid'>wins</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>integrate</span> <span class='hs-varid'>st</span>
<a name="line-243"></a> <span class='hs-varid'>nwins</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>wins</span>
<a name="line-244"></a> <span class='hs-varid'>rects</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>arrangeSplitGrid</span> <span class='hs-varid'>rect</span> <span class='hs-conid'>L</span> <span class='hs-varid'>nwins</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span>
<a name="line-245"></a>
<a name="line-246"></a> <span class='hs-varid'>pureMessage</span> <span class='hs-varid'>layout</span> <span class='hs-varid'>msg</span> <span class='hs-keyglyph'>=</span>
<a name="line-247"></a> <span class='hs-varid'>msum</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>tallGridAdapter</span> <span class='hs-varid'>resizeMaster</span><span class='hs-layout'>)</span> <span class='hs-varid'>layout</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMessage</span> <span class='hs-varid'>msg</span><span class='hs-layout'>)</span>
<a name="line-248"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>tallGridAdapter</span> <span class='hs-varid'>changeMasterGrid</span><span class='hs-layout'>)</span> <span class='hs-varid'>layout</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMessage</span> <span class='hs-varid'>msg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>]</span>
<a name="line-249"></a>
<a name="line-250"></a> <span class='hs-varid'>description</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"TallGrid"</span>
<a name="line-251"></a>
<a name="line-252"></a><a name="tallGridAdapter"></a><span class='hs-definition'>tallGridAdapter</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>SplitGrid</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>TallGrid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>TallGrid</span> <span class='hs-varid'>a</span>
<a name="line-253"></a><span class='hs-definition'>tallGridAdapter</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>TallGrid</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-varid'>msg</span> <span class='hs-keyglyph'>=</span>
<a name="line-254"></a> <span class='hs-conid'>TallGrid</span> <span class='hs-varid'>mrows'</span> <span class='hs-varid'>mcols'</span> <span class='hs-varid'>mfrac'</span> <span class='hs-varid'>saspect'</span> <span class='hs-varid'>delta'</span>
<a name="line-255"></a> <span class='hs-keyword'>where</span>
<a name="line-256"></a> <span class='hs-conid'>SplitGrid</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>mrows'</span> <span class='hs-varid'>mcols'</span> <span class='hs-varid'>mfrac'</span> <span class='hs-varid'>saspect'</span> <span class='hs-varid'>delta'</span> <span class='hs-keyglyph'>=</span>
<a name="line-257"></a> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>SplitGrid</span> <span class='hs-conid'>L</span> <span class='hs-varid'>mrows</span> <span class='hs-varid'>mcols</span> <span class='hs-varid'>mfrac</span> <span class='hs-varid'>saspect</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span> <span class='hs-varid'>msg</span>
</pre></body>
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