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<title>XMonad/Layout/MouseResizableTile.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable, FlexibleInstances, MultiParamTypeClasses, PatternGuards #-}</span>
<a name="line-2"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-3"></a><span class='hs-comment'>-- |</span>
<a name="line-4"></a><span class='hs-comment'>-- Module : XMonad.Layout.MouseResizableTile</span>
<a name="line-5"></a><span class='hs-comment'>-- Copyright : (c) Jan Vornberger 2009</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 : jan.vornberger@informatik.uni-oldenburg.de</span>
<a name="line-9"></a><span class='hs-comment'>-- Stability : unstable</span>
<a name="line-10"></a><span class='hs-comment'>-- Portability : not portable</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- A layout in the spirit of "XMonad.Layout.ResizableTile", but with the option</span>
<a name="line-13"></a><span class='hs-comment'>-- to use the mouse to adjust the layout.</span>
<a name="line-14"></a><span class='hs-comment'>--</span>
<a name="line-15"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-16"></a>
<a name="line-17"></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'>MouseResizableTile</span> <span class='hs-layout'>(</span>
<a name="line-18"></a> <span class='hs-comment'>-- * Usage</span>
<a name="line-19"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-20"></a> <span class='hs-varid'>mouseResizableTile</span><span class='hs-layout'>,</span>
<a name="line-21"></a> <span class='hs-varid'>mouseResizableTileMirrored</span><span class='hs-layout'>,</span>
<a name="line-22"></a> <span class='hs-conid'>MRTMessage</span> <span class='hs-layout'>(</span><span class='hs-conid'>ShrinkSlave</span><span class='hs-layout'>,</span> <span class='hs-conid'>ExpandSlave</span><span class='hs-layout'>)</span>
<a name="line-23"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-24"></a>
<a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>tile</span><span class='hs-layout'>,</span> <span class='hs-varid'>splitVertically</span><span class='hs-layout'>,</span> <span class='hs-varid'>splitHorizontallyBy</span><span class='hs-layout'>)</span>
<a name="line-26"></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-27"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Util</span><span class='hs-varop'>.</span><span class='hs-conid'>XUtils</span>
<a name="line-28"></a>
<a name="line-29"></a><span class='hs-comment'>-- $usage</span>
<a name="line-30"></a><span class='hs-comment'>-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:</span>
<a name="line-31"></a><span class='hs-comment'>--</span>
<a name="line-32"></a><span class='hs-comment'>-- > import XMonad.Layout.MouseResizableTile</span>
<a name="line-33"></a><span class='hs-comment'>--</span>
<a name="line-34"></a><span class='hs-comment'>-- Then edit your @layoutHook@ by adding the MouseResizableTile layout.</span>
<a name="line-35"></a><span class='hs-comment'>-- Either in its normal form or the mirrored version. (The mirror layout modifier</span>
<a name="line-36"></a><span class='hs-comment'>-- will not work correctly here because of the use of the mouse.)</span>
<a name="line-37"></a><span class='hs-comment'>--</span>
<a name="line-38"></a><span class='hs-comment'>-- > myLayout = mouseResizableTile ||| etc..</span>
<a name="line-39"></a><span class='hs-comment'>-- > main = xmonad defaultConfig { layoutHook = myLayout }</span>
<a name="line-40"></a><span class='hs-comment'>--</span>
<a name="line-41"></a><span class='hs-comment'>-- or</span>
<a name="line-42"></a><span class='hs-comment'>--</span>
<a name="line-43"></a><span class='hs-comment'>-- > myLayout = mouseResizableTileMirrored ||| etc..</span>
<a name="line-44"></a><span class='hs-comment'>-- > main = xmonad defaultConfig { layoutHook = myLayout }</span>
<a name="line-45"></a><span class='hs-comment'>--</span>
<a name="line-46"></a><span class='hs-comment'>-- For more detailed instructions on editing the layoutHook see:</span>
<a name="line-47"></a><span class='hs-comment'>--</span>
<a name="line-48"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_the_layout_hook"</span>
<a name="line-49"></a><span class='hs-comment'>--</span>
<a name="line-50"></a><span class='hs-comment'>-- You may also want to add the following key bindings:</span>
<a name="line-51"></a><span class='hs-comment'>--</span>
<a name="line-52"></a><span class='hs-comment'>-- > , ((modm, xK_u), sendMessage ShrinkSlave) -- %! Shrink a slave area</span>
<a name="line-53"></a><span class='hs-comment'>-- > , ((modm, xK_i), sendMessage ExpandSlave) -- %! Expand a slave area</span>
<a name="line-54"></a><span class='hs-comment'>--</span>
<a name="line-55"></a><span class='hs-comment'>-- For detailed instruction on editing the key binding see:</span>
<a name="line-56"></a><span class='hs-comment'>--</span>
<a name="line-57"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_key_bindings".</span>
<a name="line-58"></a>
<a name="line-59"></a><a name="MRTMessage"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>MRTMessage</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>SetMasterFraction</span> <span class='hs-conid'>Rational</span>
<a name="line-60"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>SetLeftSlaveFraction</span> <span class='hs-conid'>Int</span> <span class='hs-conid'>Rational</span>
<a name="line-61"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>SetRightSlaveFraction</span> <span class='hs-conid'>Int</span> <span class='hs-conid'>Rational</span>
<a name="line-62"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ShrinkSlave</span>
<a name="line-63"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ExpandSlave</span>
<a name="line-64"></a> <span class='hs-keyword'>deriving</span> <span class='hs-conid'>Typeable</span>
<a name="line-65"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Message</span> <span class='hs-conid'>MRTMessage</span>
<a name="line-66"></a>
<a name="line-67"></a><a name="DraggerInfo"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>DraggerInfo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MasterDragger</span> <span class='hs-conid'>Position</span> <span class='hs-conid'>Rational</span>
<a name="line-68"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>LeftSlaveDragger</span> <span class='hs-conid'>Position</span> <span class='hs-conid'>Rational</span> <span class='hs-conid'>Int</span>
<a name="line-69"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>RightSlaveDragger</span> <span class='hs-conid'>Position</span> <span class='hs-conid'>Rational</span> <span class='hs-conid'>Int</span>
<a name="line-70"></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-71"></a><a name="DraggerWithRect"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>DraggerWithRect</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'>Glyph</span><span class='hs-layout'>,</span> <span class='hs-conid'>DraggerInfo</span><span class='hs-layout'>)</span>
<a name="line-72"></a><a name="DraggerWithWin"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>DraggerWithWin</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>Window</span><span class='hs-layout'>,</span> <span class='hs-conid'>DraggerInfo</span><span class='hs-layout'>)</span>
<a name="line-73"></a>
<a name="line-74"></a><a name="MouseResizableTile"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>MouseResizableTile</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MRT</span> <span class='hs-layout'>{</span> <span class='hs-varid'>nmaster</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span><span class='hs-layout'>,</span>
<a name="line-75"></a> <span class='hs-varid'>masterFrac</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rational</span><span class='hs-layout'>,</span>
<a name="line-76"></a> <span class='hs-varid'>leftFracs</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Rational</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-77"></a> <span class='hs-varid'>rightFracs</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Rational</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-78"></a> <span class='hs-varid'>draggers</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DraggerWithWin</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-79"></a> <span class='hs-varid'>focusPos</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span><span class='hs-layout'>,</span>
<a name="line-80"></a> <span class='hs-varid'>numWindows</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span><span class='hs-layout'>,</span>
<a name="line-81"></a> <span class='hs-varid'>isMirrored</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span>
<a name="line-82"></a> <span class='hs-layout'>}</span> <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-83"></a>
<a name="line-84"></a><a name="mrtFraction"></a><span class='hs-definition'>mrtFraction</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rational</span>
<a name="line-85"></a><span class='hs-definition'>mrtFraction</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0.5</span>
<a name="line-86"></a><a name="mrtDelta"></a><span class='hs-definition'>mrtDelta</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rational</span>
<a name="line-87"></a><span class='hs-definition'>mrtDelta</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0.03</span>
<a name="line-88"></a><a name="mrtDraggerOffset"></a><span class='hs-definition'>mrtDraggerOffset</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Position</span>
<a name="line-89"></a><span class='hs-definition'>mrtDraggerOffset</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>3</span>
<a name="line-90"></a><a name="mrtDraggerSize"></a><span class='hs-definition'>mrtDraggerSize</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Dimension</span>
<a name="line-91"></a><span class='hs-definition'>mrtDraggerSize</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>6</span>
<a name="line-92"></a><a name="mrtHDoubleArrow"></a><span class='hs-definition'>mrtHDoubleArrow</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Glyph</span>
<a name="line-93"></a><span class='hs-definition'>mrtHDoubleArrow</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>108</span>
<a name="line-94"></a><a name="mrtVDoubleArrow"></a><span class='hs-definition'>mrtVDoubleArrow</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Glyph</span>
<a name="line-95"></a><span class='hs-definition'>mrtVDoubleArrow</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>116</span>
<a name="line-96"></a>
<a name="line-97"></a><a name="mouseResizableTile"></a><span class='hs-definition'>mouseResizableTile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MouseResizableTile</span> <span class='hs-varid'>a</span>
<a name="line-98"></a><span class='hs-definition'>mouseResizableTile</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MRT</span> <span class='hs-num'>1</span> <span class='hs-varid'>mrtFraction</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>[]</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span> <span class='hs-conid'>False</span>
<a name="line-99"></a>
<a name="line-100"></a><a name="mouseResizableTileMirrored"></a><span class='hs-definition'>mouseResizableTileMirrored</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MouseResizableTile</span> <span class='hs-varid'>a</span>
<a name="line-101"></a><span class='hs-definition'>mouseResizableTileMirrored</span><span class='hs-keyglyph'>=</span> <span class='hs-conid'>MRT</span> <span class='hs-num'>1</span> <span class='hs-varid'>mrtFraction</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>[]</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span> <span class='hs-conid'>True</span>
<a name="line-102"></a>
<a name="line-103"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>LayoutClass</span> <span class='hs-conid'>MouseResizableTile</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>where</span>
<a name="line-104"></a> <span class='hs-varid'>doLayout</span> <span class='hs-varid'>state</span> <span class='hs-varid'>sr</span> <span class='hs-layout'>(</span><span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-conid'>Stack</span> <span class='hs-varid'>w</span> <span class='hs-varid'>l</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-105"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>wins</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span> <span class='hs-varid'>l</span> <span class='hs-varop'>++</span> <span class='hs-varid'>w</span> <span class='hs-conop'>:</span> <span class='hs-varid'>r</span>
<a name="line-106"></a> <span class='hs-varid'>num</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>wins</span>
<a name="line-107"></a> <span class='hs-varid'>sr'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mirrorAdjust</span> <span class='hs-varid'>sr</span> <span class='hs-layout'>(</span><span class='hs-varid'>mirrorRect</span> <span class='hs-varid'>sr</span><span class='hs-layout'>)</span>
<a name="line-108"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rects</span><span class='hs-layout'>,</span> <span class='hs-varid'>preparedDraggers</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tile</span> <span class='hs-layout'>(</span><span class='hs-varid'>nmaster</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>masterFrac</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span>
<a name="line-109"></a> <span class='hs-layout'>(</span><span class='hs-varid'>leftFracs</span> <span class='hs-varid'>state</span> <span class='hs-varop'>++</span> <span class='hs-varid'>repeat</span> <span class='hs-varid'>mrtFraction</span><span class='hs-layout'>)</span>
<a name="line-110"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rightFracs</span> <span class='hs-varid'>state</span> <span class='hs-varop'>++</span> <span class='hs-varid'>repeat</span> <span class='hs-varid'>mrtFraction</span><span class='hs-layout'>)</span> <span class='hs-varid'>sr'</span> <span class='hs-varid'>num</span>
<a name="line-111"></a> <span class='hs-varid'>rects'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>mirrorAdjust</span> <span class='hs-varid'>id</span> <span class='hs-varid'>mirrorRect</span> <span class='hs-varop'>.</span> <span class='hs-varid'>sanitizeRectangle</span> <span class='hs-varid'>sr'</span><span class='hs-layout'>)</span> <span class='hs-varid'>rects</span>
<a name="line-112"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>do</span>
<a name="line-113"></a> <span class='hs-varid'>mapM_</span> <span class='hs-varid'>deleteDragger</span> <span class='hs-varop'>$</span> <span class='hs-varid'>draggers</span> <span class='hs-varid'>state</span>
<a name="line-114"></a> <span class='hs-varid'>newDraggers</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-layout'>(</span><span class='hs-varid'>createDragger</span> <span class='hs-varid'>sr</span> <span class='hs-varop'>.</span> <span class='hs-varid'>adjustForMirror</span> <span class='hs-layout'>(</span><span class='hs-varid'>isMirrored</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>preparedDraggers</span>
<a name="line-115"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>zip</span> <span class='hs-varid'>wins</span> <span class='hs-varid'>rects'</span><span class='hs-layout'>,</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>state</span> <span class='hs-layout'>{</span> <span class='hs-varid'>draggers</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>newDraggers</span><span class='hs-layout'>,</span>
<a name="line-116"></a> <span class='hs-varid'>focusPos</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>l</span><span class='hs-layout'>,</span>
<a name="line-117"></a> <span class='hs-varid'>numWindows</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>wins</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-118"></a> <span class='hs-keyword'>where</span>
<a name="line-119"></a> <span class='hs-varid'>mirrorAdjust</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>isMirrored</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span>
<a name="line-120"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>b</span>
<a name="line-121"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>a</span>
<a name="line-122"></a>
<a name="line-123"></a> <span class='hs-varid'>handleMessage</span> <span class='hs-varid'>state</span> <span class='hs-varid'>m</span>
<a name="line-124"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>IncMasterN</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span>
<a name="line-125"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>state</span> <span class='hs-layout'>{</span> <span class='hs-varid'>nmaster</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>nmaster</span> <span class='hs-varid'>state</span> <span class='hs-varop'>+</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-126"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>Shrink</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span>
<a name="line-127"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>state</span> <span class='hs-layout'>{</span> <span class='hs-varid'>masterFrac</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>masterFrac</span> <span class='hs-varid'>state</span> <span class='hs-comment'>-</span> <span class='hs-varid'>mrtDelta</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-128"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>Expand</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span>
<a name="line-129"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>state</span> <span class='hs-layout'>{</span> <span class='hs-varid'>masterFrac</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>min</span> <span class='hs-num'>1</span> <span class='hs-layout'>(</span><span class='hs-varid'>masterFrac</span> <span class='hs-varid'>state</span> <span class='hs-varop'>+</span> <span class='hs-varid'>mrtDelta</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-130"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>ShrinkSlave</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span>
<a name="line-131"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>modifySlave</span> <span class='hs-varid'>state</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-varid'>mrtDelta</span><span class='hs-layout'>)</span>
<a name="line-132"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>ExpandSlave</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span>
<a name="line-133"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>modifySlave</span> <span class='hs-varid'>state</span> <span class='hs-varid'>mrtDelta</span>
<a name="line-134"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>SetMasterFraction</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span>
<a name="line-135"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>state</span> <span class='hs-layout'>{</span> <span class='hs-varid'>masterFrac</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>min</span> <span class='hs-num'>1</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-136"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>SetLeftSlaveFraction</span> <span class='hs-varid'>pos</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span>
<a name="line-137"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>state</span> <span class='hs-layout'>{</span> <span class='hs-varid'>leftFracs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>replaceAtPos</span> <span class='hs-layout'>(</span><span class='hs-varid'>leftFracs</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span> <span class='hs-varid'>pos</span> <span class='hs-layout'>(</span><span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>min</span> <span class='hs-num'>1</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-138"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>SetRightSlaveFraction</span> <span class='hs-varid'>pos</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span>
<a name="line-139"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>state</span> <span class='hs-layout'>{</span> <span class='hs-varid'>rightFracs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>replaceAtPos</span> <span class='hs-layout'>(</span><span class='hs-varid'>rightFracs</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span> <span class='hs-varid'>pos</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'>min</span> <span class='hs-num'>1</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-140"></a>
<a name="line-141"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Event</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>handleResize</span> <span class='hs-layout'>(</span><span class='hs-varid'>draggers</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>isMirrored</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span> <span class='hs-varid'>e</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-142"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>Hide</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>releaseResources</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>state</span> <span class='hs-layout'>{</span> <span class='hs-varid'>draggers</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-143"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>ReleaseResources</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fromMessage</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>releaseResources</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>state</span> <span class='hs-layout'>{</span> <span class='hs-varid'>draggers</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-144"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>releaseResources</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapM_</span> <span class='hs-varid'>deleteDragger</span> <span class='hs-varop'>$</span> <span class='hs-varid'>draggers</span> <span class='hs-varid'>state</span>
<a name="line-145"></a> <span class='hs-varid'>handleMessage</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-146"></a>
<a name="line-147"></a> <span class='hs-varid'>description</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"MouseResizableTile"</span>
<a name="line-148"></a>
<a name="line-149"></a><a name="adjustForMirror"></a><span class='hs-definition'>adjustForMirror</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>DraggerWithRect</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>DraggerWithRect</span>
<a name="line-150"></a><span class='hs-definition'>adjustForMirror</span> <span class='hs-conid'>False</span> <span class='hs-varid'>dragger</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dragger</span>
<a name="line-151"></a><span class='hs-definition'>adjustForMirror</span> <span class='hs-conid'>True</span> <span class='hs-layout'>(</span><span class='hs-varid'>draggerRect</span><span class='hs-layout'>,</span> <span class='hs-varid'>draggerCursor</span><span class='hs-layout'>,</span> <span class='hs-varid'>draggerInfo</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-152"></a> <span class='hs-layout'>(</span><span class='hs-varid'>mirrorRect</span> <span class='hs-varid'>draggerRect</span><span class='hs-layout'>,</span> <span class='hs-varid'>draggerCursor'</span><span class='hs-layout'>,</span> <span class='hs-varid'>draggerInfo</span><span class='hs-layout'>)</span>
<a name="line-153"></a> <span class='hs-keyword'>where</span>
<a name="line-154"></a> <span class='hs-varid'>draggerCursor'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>draggerCursor</span> <span class='hs-varop'>==</span> <span class='hs-varid'>mrtHDoubleArrow</span><span class='hs-layout'>)</span>
<a name="line-155"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>mrtVDoubleArrow</span>
<a name="line-156"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>mrtHDoubleArrow</span>
<a name="line-157"></a>
<a name="line-158"></a><a name="modifySlave"></a><span class='hs-definition'>modifySlave</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MouseResizableTile</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rational</span><span class='hs-keyglyph'>-></span> <span class='hs-conid'>MouseResizableTile</span> <span class='hs-varid'>a</span>
<a name="line-159"></a><span class='hs-definition'>modifySlave</span> <span class='hs-varid'>state</span> <span class='hs-varid'>delta</span> <span class='hs-keyglyph'>=</span>
<a name="line-160"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>pos</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>focusPos</span> <span class='hs-varid'>state</span>
<a name="line-161"></a> <span class='hs-varid'>num</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>numWindows</span> <span class='hs-varid'>state</span>
<a name="line-162"></a> <span class='hs-varid'>nmaster'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nmaster</span> <span class='hs-varid'>state</span>
<a name="line-163"></a> <span class='hs-varid'>leftFracs'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>leftFracs</span> <span class='hs-varid'>state</span>
<a name="line-164"></a> <span class='hs-varid'>rightFracs'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rightFracs</span> <span class='hs-varid'>state</span>
<a name="line-165"></a> <span class='hs-varid'>draggersLeft</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nmaster'</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span>
<a name="line-166"></a> <span class='hs-varid'>draggersRight</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>num</span> <span class='hs-comment'>-</span> <span class='hs-varid'>nmaster'</span><span class='hs-layout'>)</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span>
<a name="line-167"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>pos</span> <span class='hs-varop'><</span> <span class='hs-varid'>nmaster'</span>
<a name="line-168"></a> <span class='hs-keyword'>then</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>draggersLeft</span> <span class='hs-varop'>></span> <span class='hs-num'>0</span>
<a name="line-169"></a> <span class='hs-keyword'>then</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>draggerPos</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>min</span> <span class='hs-layout'>(</span><span class='hs-varid'>draggersLeft</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pos</span>
<a name="line-170"></a> <span class='hs-varid'>oldFraction</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>leftFracs'</span> <span class='hs-varop'>++</span> <span class='hs-varid'>repeat</span> <span class='hs-varid'>mrtFraction</span><span class='hs-layout'>)</span> <span class='hs-varop'>!!</span> <span class='hs-varid'>draggerPos</span>
<a name="line-171"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>state</span> <span class='hs-layout'>{</span> <span class='hs-varid'>leftFracs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>replaceAtPos</span> <span class='hs-varid'>leftFracs'</span> <span class='hs-varid'>draggerPos</span>
<a name="line-172"></a> <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'>min</span> <span class='hs-num'>1</span> <span class='hs-layout'>(</span><span class='hs-varid'>oldFraction</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-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-173"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>state</span>
<a name="line-174"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>draggersRight</span> <span class='hs-varop'>></span> <span class='hs-num'>0</span>
<a name="line-175"></a> <span class='hs-keyword'>then</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>draggerPos</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>min</span> <span class='hs-layout'>(</span><span class='hs-varid'>draggersRight</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>pos</span> <span class='hs-comment'>-</span> <span class='hs-varid'>nmaster'</span><span class='hs-layout'>)</span>
<a name="line-176"></a> <span class='hs-varid'>oldFraction</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>rightFracs'</span> <span class='hs-varop'>++</span> <span class='hs-varid'>repeat</span> <span class='hs-varid'>mrtFraction</span><span class='hs-layout'>)</span> <span class='hs-varop'>!!</span> <span class='hs-varid'>draggerPos</span>
<a name="line-177"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>state</span> <span class='hs-layout'>{</span> <span class='hs-varid'>rightFracs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>replaceAtPos</span> <span class='hs-varid'>rightFracs'</span> <span class='hs-varid'>draggerPos</span>
<a name="line-178"></a> <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'>min</span> <span class='hs-num'>1</span> <span class='hs-layout'>(</span><span class='hs-varid'>oldFraction</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-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-179"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>state</span>
<a name="line-180"></a>
<a name="line-181"></a><a name="replaceAtPos"></a><span class='hs-definition'>replaceAtPos</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Num</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></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-varid'>t</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'>Rational</span><span class='hs-keyglyph'>]</span>
<a name="line-182"></a><span class='hs-definition'>replaceAtPos</span> <span class='hs-conid'>[]</span> <span class='hs-num'>0</span> <span class='hs-varid'>x'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x'</span><span class='hs-keyglyph'>]</span>
<a name="line-183"></a><span class='hs-definition'>replaceAtPos</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>pos</span> <span class='hs-varid'>x'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mrtFraction</span> <span class='hs-conop'>:</span> <span class='hs-varid'>replaceAtPos</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-varid'>pos</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>x'</span>
<a name="line-184"></a><span class='hs-definition'>replaceAtPos</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-varid'>x'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>xs</span>
<a name="line-185"></a><span class='hs-definition'>replaceAtPos</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-varid'>pos</span> <span class='hs-varid'>x'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-conop'>:</span> <span class='hs-varid'>replaceAtPos</span> <span class='hs-varid'>xs</span> <span class='hs-layout'>(</span><span class='hs-varid'>pos</span> <span class='hs-comment'>-</span><span class='hs-num'>1</span> <span class='hs-layout'>)</span> <span class='hs-varid'>x'</span>
<a name="line-186"></a>
<a name="line-187"></a><a name="sanitizeRectangle"></a><span class='hs-definition'>sanitizeRectangle</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span>
<a name="line-188"></a><span class='hs-definition'>sanitizeRectangle</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>sx</span> <span class='hs-varid'>sy</span> <span class='hs-varid'>swh</span> <span class='hs-varid'>sht</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>wh</span> <span class='hs-varid'>ht</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-189"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-layout'>(</span><span class='hs-varid'>within</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>sx</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>swh</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>within</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>sy</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>sht</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-190"></a> <span class='hs-layout'>(</span><span class='hs-varid'>within</span> <span class='hs-num'>1</span> <span class='hs-varid'>swh</span> <span class='hs-varid'>wh</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>within</span> <span class='hs-num'>1</span> <span class='hs-varid'>sht</span> <span class='hs-varid'>ht</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-191"></a>
<a name="line-192"></a><a name="within"></a><span class='hs-definition'>within</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-193"></a><span class='hs-definition'>within</span> <span class='hs-varid'>low</span> <span class='hs-varid'>high</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>max</span> <span class='hs-varid'>low</span> <span class='hs-varop'>$</span> <span class='hs-varid'>min</span> <span class='hs-varid'>high</span> <span class='hs-varid'>a</span>
<a name="line-194"></a>
<a name="line-195"></a><a name="tile"></a><span class='hs-definition'>tile</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'>Rational</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></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> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>Rectangle</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DraggerWithRect</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-196"></a><span class='hs-definition'>tile</span> <span class='hs-varid'>nmaster'</span> <span class='hs-varid'>masterFrac'</span> <span class='hs-varid'>leftFracs'</span> <span class='hs-varid'>rightFracs'</span> <span class='hs-varid'>sr</span> <span class='hs-varid'>num</span>
<a name="line-197"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>num</span> <span class='hs-varop'><=</span> <span class='hs-varid'>nmaster'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitVertically</span> <span class='hs-layout'>(</span><span class='hs-varid'>take</span> <span class='hs-layout'>(</span><span class='hs-varid'>num</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>leftFracs'</span><span class='hs-layout'>)</span> <span class='hs-varid'>sr</span> <span class='hs-conid'>True</span> <span class='hs-num'>0</span>
<a name="line-198"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>nmaster'</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitVertically</span> <span class='hs-layout'>(</span><span class='hs-varid'>take</span> <span class='hs-layout'>(</span><span class='hs-varid'>num</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>rightFracs'</span><span class='hs-layout'>)</span> <span class='hs-varid'>sr</span> <span class='hs-conid'>False</span> <span class='hs-num'>0</span>
<a name="line-199"></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'>leftRects</span> <span class='hs-varop'>++</span> <span class='hs-varid'>rightRects</span><span class='hs-layout'>,</span> <span class='hs-varid'>masterDragger</span> <span class='hs-conop'>:</span> <span class='hs-varid'>leftDraggers</span> <span class='hs-varop'>++</span> <span class='hs-varid'>rightDraggers</span><span class='hs-layout'>)</span>
<a name="line-200"></a> <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>sr1</span><span class='hs-layout'>,</span> <span class='hs-varid'>sr2</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>masterDragger</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitHorizontallyBy</span> <span class='hs-varid'>masterFrac'</span> <span class='hs-varid'>sr</span>
<a name="line-201"></a> <span class='hs-layout'>(</span><span class='hs-varid'>leftRects</span><span class='hs-layout'>,</span> <span class='hs-varid'>leftDraggers</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitVertically</span> <span class='hs-layout'>(</span><span class='hs-varid'>take</span> <span class='hs-layout'>(</span><span class='hs-varid'>nmaster'</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>leftFracs'</span><span class='hs-layout'>)</span> <span class='hs-varid'>sr1</span> <span class='hs-conid'>True</span> <span class='hs-num'>0</span>
<a name="line-202"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rightRects</span><span class='hs-layout'>,</span> <span class='hs-varid'>rightDraggers</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitVertically</span> <span class='hs-layout'>(</span><span class='hs-varid'>take</span> <span class='hs-layout'>(</span><span class='hs-varid'>num</span> <span class='hs-comment'>-</span> <span class='hs-varid'>nmaster'</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>rightFracs'</span><span class='hs-layout'>)</span> <span class='hs-varid'>sr2</span> <span class='hs-conid'>False</span> <span class='hs-num'>0</span>
<a name="line-203"></a>
<a name="line-204"></a><a name="splitVertically"></a><span class='hs-definition'>splitVertically</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RealFrac</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>r</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>Rectangle</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DraggerWithRect</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-205"></a><span class='hs-definition'>splitVertically</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-varid'>r</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-206"></a><span class='hs-definition'>splitVertically</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span><span class='hs-conop'>:</span><span class='hs-varid'>fx</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>sx</span> <span class='hs-varid'>sy</span> <span class='hs-varid'>sw</span> <span class='hs-varid'>sh</span><span class='hs-layout'>)</span> <span class='hs-varid'>isLeft</span> <span class='hs-varid'>num</span> <span class='hs-keyglyph'>=</span>
<a name="line-207"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>nextRect</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-varop'>$</span> <span class='hs-varid'>smallh</span> <span class='hs-comment'>-</span> <span class='hs-varid'>div</span> <span class='hs-varid'>mrtDraggerSize</span> <span class='hs-num'>2</span>
<a name="line-208"></a> <span class='hs-layout'>(</span><span class='hs-varid'>otherRects</span><span class='hs-layout'>,</span> <span class='hs-varid'>otherDragger</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitVertically</span> <span class='hs-varid'>fx</span>
<a name="line-209"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>sx</span> <span class='hs-layout'>(</span><span class='hs-varid'>sy</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>smallh</span> <span class='hs-varop'>+</span> <span class='hs-varid'>mrtDraggerOffset</span><span class='hs-layout'>)</span>
<a name="line-210"></a> <span class='hs-varid'>sw</span> <span class='hs-layout'>(</span><span class='hs-varid'>sh</span> <span class='hs-comment'>-</span> <span class='hs-varid'>smallh</span> <span class='hs-comment'>-</span> <span class='hs-varid'>div</span> <span class='hs-varid'>mrtDraggerSize</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-211"></a> <span class='hs-varid'>isLeft</span> <span class='hs-layout'>(</span><span class='hs-varid'>num</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-212"></a> <span class='hs-varid'>draggerRect</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span> <span class='hs-varid'>sx</span> <span class='hs-layout'>(</span><span class='hs-varid'>sy</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>smallh</span> <span class='hs-comment'>-</span> <span class='hs-varid'>mrtDraggerOffset</span><span class='hs-layout'>)</span> <span class='hs-varid'>sw</span> <span class='hs-varid'>mrtDraggerSize</span>
<a name="line-213"></a> <span class='hs-varid'>draggerInfo</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>isLeft</span>
<a name="line-214"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>LeftSlaveDragger</span> <span class='hs-varid'>sy</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>sh</span><span class='hs-layout'>)</span> <span class='hs-varid'>num</span>
<a name="line-215"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>RightSlaveDragger</span> <span class='hs-varid'>sy</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>sh</span><span class='hs-layout'>)</span> <span class='hs-varid'>num</span>
<a name="line-216"></a> <span class='hs-varid'>nextDragger</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>draggerRect</span><span class='hs-layout'>,</span> <span class='hs-varid'>mrtVDoubleArrow</span><span class='hs-layout'>,</span> <span class='hs-varid'>draggerInfo</span><span class='hs-layout'>)</span>
<a name="line-217"></a> <span class='hs-keyword'>in</span> <span class='hs-layout'>(</span><span class='hs-varid'>nextRect</span> <span class='hs-conop'>:</span> <span class='hs-varid'>otherRects</span><span class='hs-layout'>,</span> <span class='hs-varid'>nextDragger</span> <span class='hs-conop'>:</span> <span class='hs-varid'>otherDragger</span><span class='hs-layout'>)</span>
<a name="line-218"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>smallh</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>floor</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>sh</span> <span class='hs-varop'>*</span> <span class='hs-varid'>f</span>
<a name="line-219"></a>
<a name="line-220"></a><a name="splitHorizontallyBy"></a><span class='hs-definition'>splitHorizontallyBy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RealFrac</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>DraggerWithRect</span><span class='hs-layout'>)</span>
<a name="line-221"></a><span class='hs-definition'>splitHorizontallyBy</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>sx</span> <span class='hs-varid'>sy</span> <span class='hs-varid'>sw</span> <span class='hs-varid'>sh</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>leftHalf</span><span class='hs-layout'>,</span> <span class='hs-varid'>rightHalf</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>draggerRect</span><span class='hs-layout'>,</span> <span class='hs-varid'>mrtHDoubleArrow</span><span class='hs-layout'>,</span> <span class='hs-varid'>draggerInfo</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-222"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>leftw</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>floor</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>sw</span> <span class='hs-varop'>*</span> <span class='hs-varid'>f</span>
<a name="line-223"></a> <span class='hs-varid'>leftHalf</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-layout'>(</span><span class='hs-varid'>leftw</span> <span class='hs-comment'>-</span> <span class='hs-varid'>mrtDraggerSize</span> <span class='hs-varop'>`div`</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span> <span class='hs-varid'>sh</span>
<a name="line-224"></a> <span class='hs-varid'>rightHalf</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span> <span class='hs-layout'>(</span><span class='hs-varid'>sx</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>leftw</span> <span class='hs-varop'>+</span> <span class='hs-varid'>mrtDraggerOffset</span><span class='hs-layout'>)</span> <span class='hs-varid'>sy</span>
<a name="line-225"></a> <span class='hs-layout'>(</span><span class='hs-varid'>sw</span> <span class='hs-comment'>-</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>leftw</span> <span class='hs-comment'>-</span> <span class='hs-varid'>mrtDraggerSize</span> <span class='hs-varop'>`div`</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span> <span class='hs-varid'>sh</span>
<a name="line-226"></a> <span class='hs-varid'>draggerRect</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Rectangle</span> <span class='hs-layout'>(</span><span class='hs-varid'>sx</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>leftw</span> <span class='hs-comment'>-</span> <span class='hs-varid'>mrtDraggerOffset</span><span class='hs-layout'>)</span> <span class='hs-varid'>sy</span> <span class='hs-varid'>mrtDraggerSize</span> <span class='hs-varid'>sh</span>
<a name="line-227"></a> <span class='hs-varid'>draggerInfo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MasterDragger</span> <span class='hs-varid'>sx</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>sw</span><span class='hs-layout'>)</span>
<a name="line-228"></a>
<a name="line-229"></a><a name="createDragger"></a><span class='hs-definition'>createDragger</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>DraggerWithRect</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>DraggerWithWin</span>
<a name="line-230"></a><span class='hs-definition'>createDragger</span> <span class='hs-varid'>sr</span> <span class='hs-layout'>(</span><span class='hs-varid'>draggerRect</span><span class='hs-layout'>,</span> <span class='hs-varid'>draggerCursor</span><span class='hs-layout'>,</span> <span class='hs-varid'>draggerInfo</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-231"></a> <span class='hs-varid'>draggerWin</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>createInputWindow</span> <span class='hs-varid'>draggerCursor</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sanitizeRectangle</span> <span class='hs-varid'>sr</span> <span class='hs-varid'>draggerRect</span>
<a name="line-232"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>draggerWin</span><span class='hs-layout'>,</span> <span class='hs-varid'>draggerInfo</span><span class='hs-layout'>)</span>
<a name="line-233"></a>
<a name="line-234"></a><a name="deleteDragger"></a><span class='hs-definition'>deleteDragger</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DraggerWithWin</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-235"></a><span class='hs-definition'>deleteDragger</span> <span class='hs-layout'>(</span><span class='hs-varid'>draggerWin</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>deleteWindow</span> <span class='hs-varid'>draggerWin</span>
<a name="line-236"></a>
<a name="line-237"></a><a name="handleResize"></a><span class='hs-definition'>handleResize</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DraggerWithWin</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Event</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-238"></a><span class='hs-definition'>handleResize</span> <span class='hs-varid'>draggers'</span> <span class='hs-varid'>isM</span> <span class='hs-conid'>ButtonEvent</span> <span class='hs-layout'>{</span> <span class='hs-varid'>ev_window</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ew</span><span class='hs-layout'>,</span> <span class='hs-varid'>ev_event_type</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>et</span> <span class='hs-layout'>}</span>
<a name="line-239"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>et</span> <span class='hs-varop'>==</span> <span class='hs-varid'>buttonPress</span><span class='hs-layout'>,</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lookup</span> <span class='hs-varid'>ew</span> <span class='hs-varid'>draggers'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-240"></a> <span class='hs-conid'>MasterDragger</span> <span class='hs-varid'>lb</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mouseDrag'</span> <span class='hs-varid'>id</span> <span class='hs-varid'>lb</span> <span class='hs-varid'>r</span> <span class='hs-conid'>SetMasterFraction</span>
<a name="line-241"></a> <span class='hs-conid'>LeftSlaveDragger</span> <span class='hs-varid'>lb</span> <span class='hs-varid'>r</span> <span class='hs-varid'>num</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mouseDrag'</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>lb</span> <span class='hs-varid'>r</span> <span class='hs-layout'>(</span><span class='hs-conid'>SetLeftSlaveFraction</span> <span class='hs-varid'>num</span><span class='hs-layout'>)</span>
<a name="line-242"></a> <span class='hs-conid'>RightSlaveDragger</span> <span class='hs-varid'>lb</span> <span class='hs-varid'>r</span> <span class='hs-varid'>num</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mouseDrag'</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>lb</span> <span class='hs-varid'>r</span> <span class='hs-layout'>(</span><span class='hs-conid'>SetRightSlaveFraction</span> <span class='hs-varid'>num</span><span class='hs-layout'>)</span>
<a name="line-243"></a> <span class='hs-keyword'>where</span>
<a name="line-244"></a> <span class='hs-varid'>chooseAxis</span> <span class='hs-varid'>isM'</span> <span class='hs-varid'>axis1</span> <span class='hs-varid'>axis2</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>isM'</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>axis2</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>axis1</span>
<a name="line-245"></a> <span class='hs-varid'>mouseDrag'</span> <span class='hs-varid'>flp</span> <span class='hs-varid'>lowerBound</span> <span class='hs-varid'>range</span> <span class='hs-varid'>msg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>mouseDrag</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-246"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>axis</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flp</span> <span class='hs-layout'>(</span><span class='hs-varid'>chooseAxis</span> <span class='hs-varid'>isM</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-247"></a> <span class='hs-varid'>fraction</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>axis</span> <span class='hs-comment'>-</span> <span class='hs-varid'>lowerBound</span><span class='hs-layout'>)</span> <span class='hs-varop'>/</span> <span class='hs-varid'>range</span>
<a name="line-248"></a> <span class='hs-varid'>sendMessage</span> <span class='hs-layout'>(</span><span class='hs-varid'>msg</span> <span class='hs-varid'>fraction</span><span class='hs-layout'>)</span>
<a name="line-249"></a>
<a name="line-250"></a><span class='hs-definition'>handleResize</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-251"></a>
<a name="line-252"></a><a name="createInputWindow"></a><span class='hs-definition'>createInputWindow</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Glyph</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>Window</span>
<a name="line-253"></a><span class='hs-definition'>createInputWindow</span> <span class='hs-varid'>cursorGlyph</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withDisplay</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>d</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-254"></a> <span class='hs-varid'>win</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mkInputWindow</span> <span class='hs-varid'>d</span> <span class='hs-varid'>r</span>
<a name="line-255"></a> <span class='hs-varid'>io</span> <span class='hs-varop'>$</span> <span class='hs-varid'>selectInput</span> <span class='hs-varid'>d</span> <span class='hs-varid'>win</span> <span class='hs-layout'>(</span><span class='hs-varid'>exposureMask</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>buttonPressMask</span><span class='hs-layout'>)</span>
<a name="line-256"></a> <span class='hs-varid'>cursor</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>io</span> <span class='hs-varop'>$</span> <span class='hs-varid'>createFontCursor</span> <span class='hs-varid'>d</span> <span class='hs-varid'>cursorGlyph</span>
<a name="line-257"></a> <span class='hs-varid'>io</span> <span class='hs-varop'>$</span> <span class='hs-varid'>defineCursor</span> <span class='hs-varid'>d</span> <span class='hs-varid'>win</span> <span class='hs-varid'>cursor</span>
<a name="line-258"></a> <span class='hs-varid'>io</span> <span class='hs-varop'>$</span> <span class='hs-varid'>freeCursor</span> <span class='hs-varid'>d</span> <span class='hs-varid'>cursor</span>
<a name="line-259"></a> <span class='hs-varid'>showWindow</span> <span class='hs-varid'>win</span>
<a name="line-260"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>win</span>
<a name="line-261"></a>
<a name="line-262"></a><a name="mkInputWindow"></a><span class='hs-definition'>mkInputWindow</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Display</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>Window</span>
<a name="line-263"></a><span class='hs-definition'>mkInputWindow</span> <span class='hs-varid'>d</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-264"></a> <span class='hs-varid'>rw</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>asks</span> <span class='hs-varid'>theRoot</span>
<a name="line-265"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>screen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>defaultScreenOfDisplay</span> <span class='hs-varid'>d</span>
<a name="line-266"></a> <span class='hs-varid'>visual</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>defaultVisualOfScreen</span> <span class='hs-varid'>screen</span>
<a name="line-267"></a> <span class='hs-varid'>attrmask</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cWOverrideRedirect</span>
<a name="line-268"></a> <span class='hs-varid'>io</span> <span class='hs-varop'>$</span> <span class='hs-varid'>allocaSetWindowAttributes</span> <span class='hs-varop'>$</span>
<a name="line-269"></a> <span class='hs-keyglyph'>\</span><span class='hs-varid'>attributes</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-270"></a> <span class='hs-varid'>set_override_redirect</span> <span class='hs-varid'>attributes</span> <span class='hs-conid'>True</span>
<a name="line-271"></a> <span class='hs-varid'>createWindow</span> <span class='hs-varid'>d</span> <span class='hs-varid'>rw</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-num'>0</span> <span class='hs-num'>0</span> <span class='hs-varid'>inputOnly</span> <span class='hs-varid'>visual</span> <span class='hs-varid'>attrmask</span> <span class='hs-varid'>attributes</span>
</pre></body>
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