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<pre><a name="line-1"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-2"></a><span class='hs-comment'>-- |</span>
<a name="line-3"></a><span class='hs-comment'>-- Module : Graphics.Rendering.Chart.Grid</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) Tim Docker 2010, 2014</span>
<a name="line-5"></a><span class='hs-comment'>-- License : BSD-style (see chart/COPYRIGHT)</span>
<a name="line-6"></a><span class='hs-comment'>--</span>
<a name="line-7"></a><span class='hs-comment'>-- A container type for values that can be composed by horizonal</span>
<a name="line-8"></a><span class='hs-comment'>-- and vertical layout.</span>
<a name="line-9"></a>
<a name="line-10"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>Chart</span><span class='hs-varop'>.</span><span class='hs-conid'>Grid</span> <span class='hs-layout'>(</span>
<a name="line-11"></a> <span class='hs-conid'>Grid</span><span class='hs-layout'>,</span> <span class='hs-conid'>Span</span><span class='hs-layout'>,</span> <span class='hs-conid'>SpaceWeight</span><span class='hs-layout'>,</span>
<a name="line-12"></a> <span class='hs-varid'>tval</span><span class='hs-layout'>,</span> <span class='hs-varid'>tspan</span><span class='hs-layout'>,</span>
<a name="line-13"></a> <span class='hs-varid'>empty</span><span class='hs-layout'>,</span> <span class='hs-varid'>nullt</span><span class='hs-layout'>,</span>
<a name="line-14"></a> <span class='hs-layout'>(</span><span class='hs-varop'>.|.</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>./.</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-15"></a> <span class='hs-varid'>above</span><span class='hs-layout'>,</span> <span class='hs-varid'>aboveN</span><span class='hs-layout'>,</span>
<a name="line-16"></a> <span class='hs-varid'>beside</span><span class='hs-layout'>,</span> <span class='hs-varid'>besideN</span><span class='hs-layout'>,</span>
<a name="line-17"></a> <span class='hs-varid'>overlay</span><span class='hs-layout'>,</span>
<a name="line-18"></a> <span class='hs-varid'>width</span><span class='hs-layout'>,</span> <span class='hs-varid'>height</span><span class='hs-layout'>,</span>
<a name="line-19"></a> <span class='hs-varid'>gridToRenderable</span><span class='hs-layout'>,</span>
<a name="line-20"></a> <span class='hs-varid'>weights</span><span class='hs-layout'>,</span>
<a name="line-21"></a> <span class='hs-varid'>aboveWide</span><span class='hs-layout'>,</span>
<a name="line-22"></a> <span class='hs-varid'>wideAbove</span><span class='hs-layout'>,</span>
<a name="line-23"></a> <span class='hs-varid'>tallBeside</span><span class='hs-layout'>,</span>
<a name="line-24"></a> <span class='hs-varid'>besideTall</span><span class='hs-layout'>,</span>
<a name="line-25"></a> <span class='hs-varid'>fullOverlayUnder</span><span class='hs-layout'>,</span>
<a name="line-26"></a> <span class='hs-varid'>fullOverlayOver</span>
<a name="line-27"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-28"></a>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span>
<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'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>Chart</span><span class='hs-varop'>.</span><span class='hs-conid'>Renderable</span>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>Chart</span><span class='hs-varop'>.</span><span class='hs-conid'>Geometry</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>x0</span><span class='hs-layout'>,</span> <span class='hs-varid'>y0</span><span class='hs-layout'>)</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>Chart</span><span class='hs-varop'>.</span><span class='hs-conid'>Drawing</span>
<a name="line-34"></a>
<a name="line-35"></a><a name="Span"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Span</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>
<a name="line-36"></a><a name="Size"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Size</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>
<a name="line-37"></a>
<a name="line-38"></a><a name="SpaceWeight"></a><span class='hs-comment'>-- | When more space is available for an item than the total width of items,</span>
<a name="line-39"></a><a name="SpaceWeight"></a><span class='hs-comment'>-- extra added space is proportional to 'space weight'.</span>
<a name="line-40"></a><a name="SpaceWeight"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>SpaceWeight</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>Double</span><span class='hs-layout'>,</span><span class='hs-conid'>Double</span><span class='hs-layout'>)</span>
<a name="line-41"></a>
<a name="line-42"></a><a name="Cell"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Cell</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-conid'>Span</span><span class='hs-layout'>,</span><span class='hs-conid'>SpaceWeight</span><span class='hs-layout'>)</span>
<a name="line-43"></a>
<a name="line-44"></a><a name="Grid"></a><span class='hs-comment'>-- | Abstract datatype representing a grid.</span>
<a name="line-45"></a><a name="Grid"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-46"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Value</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-conid'>Span</span><span class='hs-layout'>,</span><span class='hs-conid'>SpaceWeight</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- ^ A singleton grid item "a" spanning</span>
<a name="line-47"></a> <span class='hs-comment'>-- a given rectangle (measured in grid</span>
<a name="line-48"></a> <span class='hs-comment'>-- cells), with given space weight.</span>
<a name="line-49"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Above</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-conid'>Size</span> <span class='hs-comment'>-- ^ One grid above the other. "Size" is</span>
<a name="line-50"></a> <span class='hs-comment'>-- their cached total size (so it is</span>
<a name="line-51"></a> <span class='hs-comment'>-- NOT specified manually).</span>
<a name="line-52"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Beside</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-conid'>Size</span> <span class='hs-comment'>-- ^ One grid horizontally beside</span>
<a name="line-53"></a> <span class='hs-comment'>-- the other.</span>
<a name="line-54"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Overlay</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-conid'>Size</span> <span class='hs-comment'>-- ^ Two grids positioned one over</span>
<a name="line-55"></a> <span class='hs-comment'>-- the other.</span>
<a name="line-56"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Empty</span> <span class='hs-comment'>-- ^ An empty 1x1 grid cell.</span>
<a name="line-57"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Null</span> <span class='hs-comment'>-- ^ An empty 0x0 grid cell.</span>
<a name="line-58"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span><span class='hs-layout'>)</span>
<a name="line-59"></a>
<a name="line-60"></a><a name="width"></a><span class='hs-definition'>width</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'>Int</span>
<a name="line-61"></a><span class='hs-definition'>width</span> <span class='hs-conid'>Null</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-62"></a><span class='hs-definition'>width</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>1</span>
<a name="line-63"></a><span class='hs-definition'>width</span> <span class='hs-layout'>(</span><span class='hs-conid'>Value</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>1</span>
<a name="line-64"></a><span class='hs-definition'>width</span> <span class='hs-layout'>(</span><span class='hs-conid'>Beside</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>w</span>
<a name="line-65"></a><span class='hs-definition'>width</span> <span class='hs-layout'>(</span><span class='hs-conid'>Above</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>w</span>
<a name="line-66"></a><span class='hs-definition'>width</span> <span class='hs-layout'>(</span><span class='hs-conid'>Overlay</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>w</span>
<a name="line-67"></a>
<a name="line-68"></a><a name="height"></a><span class='hs-definition'>height</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'>Int</span>
<a name="line-69"></a><span class='hs-definition'>height</span> <span class='hs-conid'>Null</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-70"></a><span class='hs-definition'>height</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>1</span>
<a name="line-71"></a><span class='hs-definition'>height</span> <span class='hs-layout'>(</span><span class='hs-conid'>Value</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>1</span>
<a name="line-72"></a><span class='hs-definition'>height</span> <span class='hs-layout'>(</span><span class='hs-conid'>Beside</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>h</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>h</span>
<a name="line-73"></a><span class='hs-definition'>height</span> <span class='hs-layout'>(</span><span class='hs-conid'>Above</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>h</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>h</span>
<a name="line-74"></a><span class='hs-definition'>height</span> <span class='hs-layout'>(</span><span class='hs-conid'>Overlay</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>h</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>h</span>
<a name="line-75"></a>
<a name="line-76"></a><a name="tval"></a><span class='hs-comment'>-- | A 1x1 grid from a given value, with no extra space.</span>
<a name="line-77"></a><span class='hs-definition'>tval</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-78"></a><span class='hs-definition'>tval</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Value</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span><span class='hs-num'>0</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-79"></a>
<a name="line-80"></a><a name="tspan"></a><span class='hs-comment'>-- | A WxH (measured in cells) grid from a given value, with space weight (1,1).</span>
<a name="line-81"></a><span class='hs-definition'>tspan</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Span</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-82"></a><span class='hs-definition'>tspan</span> <span class='hs-varid'>a</span> <span class='hs-varid'>spn</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Value</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>spn</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-83"></a>
<a name="line-84"></a><a name="empty"></a><span class='hs-comment'>-- | A 1x1 empty grid.</span>
<a name="line-85"></a><span class='hs-definition'>empty</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-86"></a><span class='hs-definition'>empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Empty</span>
<a name="line-87"></a>
<a name="line-88"></a><a name="nullt"></a><span class='hs-comment'>-- | A 0x0 empty grid.</span>
<a name="line-89"></a><span class='hs-definition'>nullt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-90"></a><span class='hs-definition'>nullt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Null</span>
<a name="line-91"></a>
<a name="line-92"></a><a name="above"></a><span class='hs-definition'>above</span><span class='hs-layout'>,</span> <span class='hs-varid'>beside</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'>Grid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-93"></a><span class='hs-definition'>above</span> <span class='hs-conid'>Null</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-94"></a><span class='hs-definition'>above</span> <span class='hs-varid'>t</span> <span class='hs-conid'>Null</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-95"></a><span class='hs-definition'>above</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Above</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>size</span>
<a name="line-96"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>max</span> <span class='hs-layout'>(</span><span class='hs-varid'>width</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>width</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>height</span> <span class='hs-varid'>t1</span> <span class='hs-varop'>+</span> <span class='hs-varid'>height</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span>
<a name="line-97"></a>
<a name="line-98"></a><a name="wideAbove"></a><span class='hs-comment'>-- | A value occupying 1 row with the same horizontal span as the grid.</span>
<a name="line-99"></a><span class='hs-definition'>wideAbove</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</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'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-100"></a><span class='hs-definition'>wideAbove</span> <span class='hs-varid'>a</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>weights</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span><span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>tspan</span> <span class='hs-varid'>a</span> <span class='hs-layout'>(</span><span class='hs-varid'>width</span> <span class='hs-varid'>g</span><span class='hs-layout'>,</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>`above`</span> <span class='hs-varid'>g</span>
<a name="line-101"></a>
<a name="line-102"></a><a name="aboveWide"></a><span class='hs-comment'>-- | A value placed below the grid, occupying 1 row with the same</span>
<a name="line-103"></a><span class='hs-comment'>-- horizontal span as the grid.</span>
<a name="line-104"></a><span class='hs-definition'>aboveWide</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-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-105"></a><span class='hs-definition'>aboveWide</span> <span class='hs-varid'>g</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>g</span> <span class='hs-varop'>`above`</span> <span class='hs-varid'>weights</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span><span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>tspan</span> <span class='hs-varid'>a</span> <span class='hs-layout'>(</span><span class='hs-varid'>width</span> <span class='hs-varid'>g</span><span class='hs-layout'>,</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-106"></a>
<a name="line-107"></a><a name="tallBeside"></a><span class='hs-comment'>-- | A value placed to the left of the grid, occupying 1 column with</span>
<a name="line-108"></a><span class='hs-comment'>-- the same vertical span as the grid.</span>
<a name="line-109"></a><span class='hs-definition'>tallBeside</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</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'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-110"></a><span class='hs-definition'>tallBeside</span> <span class='hs-varid'>a</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>weights</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span><span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>tspan</span> <span class='hs-varid'>a</span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span><span class='hs-varid'>height</span> <span class='hs-varid'>g</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>`beside`</span> <span class='hs-varid'>g</span>
<a name="line-111"></a>
<a name="line-112"></a><a name="besideTall"></a><span class='hs-comment'>-- | A value placed to the right of the grid, occupying 1 column with</span>
<a name="line-113"></a><span class='hs-comment'>-- the same vertical span as the grid.</span>
<a name="line-114"></a><span class='hs-definition'>besideTall</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-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-115"></a><span class='hs-definition'>besideTall</span> <span class='hs-varid'>g</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>g</span> <span class='hs-varop'>`beside`</span> <span class='hs-varid'>weights</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span><span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>tspan</span> <span class='hs-varid'>a</span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span><span class='hs-varid'>height</span> <span class='hs-varid'>g</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-116"></a>
<a name="line-117"></a><a name="fullOverlayUnder"></a><span class='hs-comment'>-- | A value placed under a grid, with the same span as the grid.</span>
<a name="line-118"></a><span class='hs-definition'>fullOverlayUnder</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</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'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-119"></a><span class='hs-definition'>fullOverlayUnder</span> <span class='hs-varid'>a</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>g</span> <span class='hs-varop'>`overlay`</span> <span class='hs-varid'>tspan</span> <span class='hs-varid'>a</span> <span class='hs-layout'>(</span><span class='hs-varid'>width</span> <span class='hs-varid'>g</span><span class='hs-layout'>,</span><span class='hs-varid'>height</span> <span class='hs-varid'>g</span><span class='hs-layout'>)</span>
<a name="line-120"></a>
<a name="line-121"></a><a name="fullOverlayOver"></a><span class='hs-comment'>-- | A value placed over a grid, with the same span as the grid.</span>
<a name="line-122"></a><span class='hs-definition'>fullOverlayOver</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</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'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-123"></a><span class='hs-definition'>fullOverlayOver</span> <span class='hs-varid'>a</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tspan</span> <span class='hs-varid'>a</span> <span class='hs-layout'>(</span><span class='hs-varid'>width</span> <span class='hs-varid'>g</span><span class='hs-layout'>,</span><span class='hs-varid'>height</span> <span class='hs-varid'>g</span><span class='hs-layout'>)</span> <span class='hs-varop'>`overlay`</span> <span class='hs-varid'>g</span>
<a name="line-124"></a>
<a name="line-125"></a><a name="beside"></a><span class='hs-definition'>beside</span> <span class='hs-conid'>Null</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-126"></a><span class='hs-definition'>beside</span> <span class='hs-varid'>t</span> <span class='hs-conid'>Null</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-127"></a><span class='hs-definition'>beside</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Beside</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>size</span>
<a name="line-128"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>width</span> <span class='hs-varid'>t1</span> <span class='hs-varop'>+</span> <span class='hs-varid'>width</span> <span class='hs-varid'>t2</span><span class='hs-layout'>,</span> <span class='hs-varid'>max</span> <span class='hs-layout'>(</span><span class='hs-varid'>height</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>height</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-129"></a>
<a name="line-130"></a><a name="aboveN"></a><span class='hs-definition'>aboveN</span><span class='hs-layout'>,</span> <span class='hs-varid'>besideN</span> <span class='hs-keyglyph'>::</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-keyglyph'>-></span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-131"></a><span class='hs-definition'>aboveN</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldl</span> <span class='hs-varid'>above</span> <span class='hs-varid'>nullt</span>
<a name="line-132"></a><a name="besideN"></a><span class='hs-definition'>besideN</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldl</span> <span class='hs-varid'>beside</span> <span class='hs-varid'>nullt</span>
<a name="line-133"></a>
<a name="line-134"></a><a name="overlay"></a><span class='hs-comment'>-- | One grid over the other. The first argument is shallow, the second is deep.</span>
<a name="line-135"></a><span class='hs-definition'>overlay</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'>Grid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-136"></a><span class='hs-definition'>overlay</span> <span class='hs-conid'>Null</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-137"></a><span class='hs-definition'>overlay</span> <span class='hs-varid'>t</span> <span class='hs-conid'>Null</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-138"></a><span class='hs-definition'>overlay</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Overlay</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>size</span>
<a name="line-139"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>max</span> <span class='hs-layout'>(</span><span class='hs-varid'>width</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>width</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>max</span> <span class='hs-layout'>(</span><span class='hs-varid'>height</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>height</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-140"></a>
<a name="line-141"></a><a name=".%7c."></a><span class='hs-comment'>-- | A synonym for 'beside'.</span>
<a name="line-142"></a><span class='hs-layout'>(</span><span class='hs-varop'>.|.</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</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'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-143"></a><span class='hs-layout'>(</span><span class='hs-varop'>.|.</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>beside</span>
<a name="line-144"></a>
<a name="line-145"></a><a name="./."></a><span class='hs-comment'>-- | A synonym for 'above'.</span>
<a name="line-146"></a><span class='hs-layout'>(</span><span class='hs-varop'>./.</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</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'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-147"></a><span class='hs-layout'>(</span><span class='hs-varop'>./.</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>above</span>
<a name="line-148"></a>
<a name="line-149"></a><a name="weights"></a><span class='hs-comment'>-- | Sets the space weight of *every* cell of the grid to given value.</span>
<a name="line-150"></a><span class='hs-definition'>weights</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SpaceWeight</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'>Grid</span> <span class='hs-varid'>a</span>
<a name="line-151"></a><span class='hs-definition'>weights</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Null</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Null</span>
<a name="line-152"></a><span class='hs-definition'>weights</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Empty</span>
<a name="line-153"></a><span class='hs-definition'>weights</span> <span class='hs-varid'>sw</span> <span class='hs-layout'>(</span><span class='hs-conid'>Value</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span><span class='hs-layout'>,</span><span class='hs-varid'>sp</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Value</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span><span class='hs-layout'>,</span><span class='hs-varid'>sp</span><span class='hs-layout'>,</span><span class='hs-varid'>sw</span><span class='hs-layout'>)</span>
<a name="line-154"></a><span class='hs-definition'>weights</span> <span class='hs-varid'>sw</span> <span class='hs-layout'>(</span><span class='hs-conid'>Above</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>sz</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Above</span> <span class='hs-layout'>(</span><span class='hs-varid'>weights</span> <span class='hs-varid'>sw</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>weights</span> <span class='hs-varid'>sw</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span> <span class='hs-varid'>sz</span>
<a name="line-155"></a><span class='hs-definition'>weights</span> <span class='hs-varid'>sw</span> <span class='hs-layout'>(</span><span class='hs-conid'>Beside</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>sz</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Beside</span> <span class='hs-layout'>(</span><span class='hs-varid'>weights</span> <span class='hs-varid'>sw</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>weights</span> <span class='hs-varid'>sw</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span> <span class='hs-varid'>sz</span>
<a name="line-156"></a><span class='hs-definition'>weights</span> <span class='hs-varid'>sw</span> <span class='hs-layout'>(</span><span class='hs-conid'>Overlay</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>sz</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Overlay</span> <span class='hs-layout'>(</span><span class='hs-varid'>weights</span> <span class='hs-varid'>sw</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>weights</span> <span class='hs-varid'>sw</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span> <span class='hs-varid'>sz</span>
<a name="line-157"></a>
<a name="line-158"></a><span class='hs-comment'>-- fix me, need to make .|. and .||. higher precedence</span>
<a name="line-159"></a><span class='hs-comment'>-- than ./. and .//.</span>
<a name="line-160"></a>
<a name="line-161"></a><a name="instance%20Functor%20Grid"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Functor</span> <span class='hs-conid'>Grid</span> <span class='hs-keyword'>where</span>
<a name="line-162"></a> <span class='hs-varid'>fmap</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Value</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>spn</span><span class='hs-layout'>,</span><span class='hs-varid'>ew</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Value</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>spn</span><span class='hs-layout'>,</span><span class='hs-varid'>ew</span><span class='hs-layout'>)</span>
<a name="line-163"></a> <span class='hs-varid'>fmap</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Above</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Above</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span> <span class='hs-varid'>s</span>
<a name="line-164"></a> <span class='hs-varid'>fmap</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Beside</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Beside</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span> <span class='hs-varid'>s</span>
<a name="line-165"></a> <span class='hs-varid'>fmap</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Overlay</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Overlay</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span> <span class='hs-varid'>s</span>
<a name="line-166"></a> <span class='hs-varid'>fmap</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Empty</span>
<a name="line-167"></a> <span class='hs-varid'>fmap</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Null</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Null</span>
<a name="line-168"></a>
<a name="line-169"></a><a name="mapGridM"></a><span class='hs-definition'>mapGridM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</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-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-170"></a><span class='hs-definition'>mapGridM</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Value</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>spn</span><span class='hs-layout'>,</span><span class='hs-varid'>ew</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>f</span> <span class='hs-varid'>a</span>
<a name="line-171"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Value</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>,</span><span class='hs-varid'>spn</span><span class='hs-layout'>,</span><span class='hs-varid'>ew</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-172"></a><span class='hs-definition'>mapGridM</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Above</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>t1'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapGridM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t1</span>
<a name="line-173"></a> <span class='hs-varid'>t2'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapGridM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t2</span>
<a name="line-174"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Above</span> <span class='hs-varid'>t1'</span> <span class='hs-varid'>t2'</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-175"></a><span class='hs-definition'>mapGridM</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Beside</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>t1'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapGridM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t1</span>
<a name="line-176"></a> <span class='hs-varid'>t2'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapGridM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t2</span>
<a name="line-177"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Beside</span> <span class='hs-varid'>t1'</span> <span class='hs-varid'>t2'</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-178"></a><span class='hs-definition'>mapGridM</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Overlay</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>t1'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapGridM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t1</span>
<a name="line-179"></a> <span class='hs-varid'>t2'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapGridM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t2</span>
<a name="line-180"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Overlay</span> <span class='hs-varid'>t1'</span> <span class='hs-varid'>t2'</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-181"></a><span class='hs-definition'>mapGridM</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Empty</span>
<a name="line-182"></a><span class='hs-definition'>mapGridM</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Null</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Null</span>
<a name="line-183"></a>
<a name="line-184"></a><a name="FlatGrid"></a><span class='hs-comment'>----------------------------------------------------------------------</span>
<a name="line-185"></a><a name="FlatGrid"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>FlatGrid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Array</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><span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-conid'>Span</span><span class='hs-layout'>,</span><span class='hs-conid'>SpaceWeight</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-186"></a>
<a name="line-187"></a><a name="flatten"></a><span class='hs-definition'>flatten</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'>FlatGrid</span> <span class='hs-varid'>a</span>
<a name="line-188"></a><span class='hs-definition'>flatten</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>accumArray</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-conop'>:</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span><span class='hs-num'>0</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>width</span> <span class='hs-varid'>t</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-varid'>height</span> <span class='hs-varid'>t</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-189"></a> <span class='hs-layout'>(</span><span class='hs-varid'>flatten2</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span><span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-varid'>t</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-190"></a>
<a name="line-191"></a><a name="FlatEl"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>FlatEl</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</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-layout'>,</span><span class='hs-conid'>Cell</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-192"></a>
<a name="line-193"></a><a name="flatten2"></a><span class='hs-definition'>flatten2</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> <span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FlatEl</span> <span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FlatEl</span> <span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span>
<a name="line-194"></a><span class='hs-definition'>flatten2</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-varid'>els</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>els</span>
<a name="line-195"></a><span class='hs-definition'>flatten2</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Null</span> <span class='hs-varid'>els</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>els</span>
<a name="line-196"></a><span class='hs-definition'>flatten2</span> <span class='hs-varid'>i</span> <span class='hs-layout'>(</span><span class='hs-conid'>Value</span> <span class='hs-varid'>cell</span><span class='hs-layout'>)</span> <span class='hs-varid'>els</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>cell</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>els</span>
<a name="line-197"></a>
<a name="line-198"></a><span class='hs-definition'>flatten2</span> <span class='hs-varid'>i</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Above</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>els</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>f1</span><span class='hs-varop'>.</span><span class='hs-varid'>f2</span><span class='hs-layout'>)</span> <span class='hs-varid'>els</span>
<a name="line-199"></a> <span class='hs-keyword'>where</span>
<a name="line-200"></a> <span class='hs-varid'>f1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flatten2</span> <span class='hs-varid'>i</span> <span class='hs-varid'>t1</span>
<a name="line-201"></a> <span class='hs-varid'>f2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flatten2</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-varop'>+</span> <span class='hs-varid'>height</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span>
<a name="line-202"></a>
<a name="line-203"></a><span class='hs-definition'>flatten2</span> <span class='hs-varid'>i</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Beside</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>els</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>f1</span><span class='hs-varop'>.</span><span class='hs-varid'>f2</span><span class='hs-layout'>)</span> <span class='hs-varid'>els</span>
<a name="line-204"></a> <span class='hs-keyword'>where</span>
<a name="line-205"></a> <span class='hs-varid'>f1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flatten2</span> <span class='hs-varid'>i</span> <span class='hs-varid'>t1</span>
<a name="line-206"></a> <span class='hs-varid'>f2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flatten2</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varop'>+</span> <span class='hs-varid'>width</span> <span class='hs-varid'>t1</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span>
<a name="line-207"></a>
<a name="line-208"></a><span class='hs-definition'>flatten2</span> <span class='hs-varid'>i</span> <span class='hs-layout'>(</span><span class='hs-conid'>Overlay</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>els</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>f1</span><span class='hs-varop'>.</span><span class='hs-varid'>f2</span><span class='hs-layout'>)</span> <span class='hs-varid'>els</span>
<a name="line-209"></a> <span class='hs-keyword'>where</span>
<a name="line-210"></a> <span class='hs-varid'>f1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flatten2</span> <span class='hs-varid'>i</span> <span class='hs-varid'>t1</span>
<a name="line-211"></a> <span class='hs-varid'>f2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flatten2</span> <span class='hs-varid'>i</span> <span class='hs-varid'>t2</span>
<a name="line-212"></a>
<a name="line-213"></a><a name="foldT"></a><span class='hs-definition'>foldT</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</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> <span class='hs-conid'>Cell</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>r</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-conid'>FlatGrid</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>r</span>
<a name="line-214"></a><span class='hs-definition'>foldT</span> <span class='hs-varid'>f</span> <span class='hs-varid'>iv</span> <span class='hs-varid'>ft</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldr</span> <span class='hs-varid'>f'</span> <span class='hs-varid'>iv</span> <span class='hs-layout'>(</span><span class='hs-varid'>assocs</span> <span class='hs-varid'>ft</span><span class='hs-layout'>)</span>
<a name="line-215"></a> <span class='hs-keyword'>where</span>
<a name="line-216"></a> <span class='hs-varid'>f'</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>vs</span><span class='hs-layout'>)</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldr</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-varid'>r</span> <span class='hs-varid'>vs</span>
<a name="line-217"></a>
<a name="line-218"></a><a name="DArray"></a><span class='hs-comment'>----------------------------------------------------------------------</span>
<a name="line-219"></a><a name="DArray"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>DArray</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Array</span> <span class='hs-conid'>Int</span> <span class='hs-conid'>Double</span>
<a name="line-220"></a>
<a name="line-221"></a><a name="getSizes"></a><span class='hs-definition'>getSizes</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Grid</span> <span class='hs-layout'>(</span><span class='hs-conid'>Renderable</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ChartBackend</span> <span class='hs-layout'>(</span><span class='hs-conid'>DArray</span><span class='hs-layout'>,</span> <span class='hs-conid'>DArray</span><span class='hs-layout'>,</span> <span class='hs-conid'>DArray</span><span class='hs-layout'>,</span> <span class='hs-conid'>DArray</span><span class='hs-layout'>)</span>
<a name="line-222"></a><span class='hs-definition'>getSizes</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-223"></a> <span class='hs-varid'>szs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapGridM</span> <span class='hs-varid'>minsize</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ChartBackend</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-conid'>RectSize</span><span class='hs-layout'>)</span>
<a name="line-224"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>szs'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flatten</span> <span class='hs-varid'>szs</span>
<a name="line-225"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>widths</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>accumArray</span> <span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-varid'>width</span> <span class='hs-varid'>t</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-226"></a> <span class='hs-layout'>(</span><span class='hs-varid'>foldT</span> <span class='hs-layout'>(</span><span class='hs-varid'>ef</span> <span class='hs-varid'>wf</span> <span class='hs-varid'>fst</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>szs'</span><span class='hs-layout'>)</span>
<a name="line-227"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>heights</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>accumArray</span> <span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-varid'>height</span> <span class='hs-varid'>t</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-228"></a> <span class='hs-layout'>(</span><span class='hs-varid'>foldT</span> <span class='hs-layout'>(</span><span class='hs-varid'>ef</span> <span class='hs-varid'>hf</span> <span class='hs-varid'>snd</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>szs'</span><span class='hs-layout'>)</span>
<a name="line-229"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>xweights</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>accumArray</span> <span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-varid'>width</span> <span class='hs-varid'>t</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-230"></a> <span class='hs-layout'>(</span><span class='hs-varid'>foldT</span> <span class='hs-layout'>(</span><span class='hs-varid'>ef</span> <span class='hs-varid'>xwf</span> <span class='hs-varid'>fst</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>szs'</span><span class='hs-layout'>)</span>
<a name="line-231"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>yweights</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>accumArray</span> <span class='hs-varid'>max</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-varid'>height</span> <span class='hs-varid'>t</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-232"></a> <span class='hs-layout'>(</span><span class='hs-varid'>foldT</span> <span class='hs-layout'>(</span><span class='hs-varid'>ef</span> <span class='hs-varid'>ywf</span> <span class='hs-varid'>snd</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>szs'</span><span class='hs-layout'>)</span>
<a name="line-233"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>widths</span><span class='hs-layout'>,</span><span class='hs-varid'>heights</span><span class='hs-layout'>,</span><span class='hs-varid'>xweights</span><span class='hs-layout'>,</span><span class='hs-varid'>yweights</span><span class='hs-layout'>)</span>
<a name="line-234"></a> <span class='hs-keyword'>where</span>
<a name="line-235"></a> <span class='hs-varid'>wf</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</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'>w</span><span class='hs-layout'>)</span>
<a name="line-236"></a> <span class='hs-varid'>hf</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</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>
<a name="line-237"></a> <span class='hs-varid'>xwf</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-varid'>xw</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</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'>xw</span><span class='hs-layout'>)</span>
<a name="line-238"></a> <span class='hs-varid'>ywf</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>yw</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'>yw</span><span class='hs-layout'>)</span>
<a name="line-239"></a>
<a name="line-240"></a> <span class='hs-varid'>ef</span> <span class='hs-varid'>f</span> <span class='hs-varid'>ds</span> <span class='hs-varid'>loc</span> <span class='hs-layout'>(</span><span class='hs-varid'>size</span><span class='hs-layout'>,</span><span class='hs-varid'>spn</span><span class='hs-layout'>,</span><span class='hs-varid'>ew</span><span class='hs-layout'>)</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>ds</span> <span class='hs-varid'>spn</span> <span class='hs-varop'>==</span> <span class='hs-num'>1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>size</span> <span class='hs-varid'>ew</span><span class='hs-conop'>:</span><span class='hs-varid'>r</span>
<a name="line-241"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>r</span>
<a name="line-242"></a>
<a name="line-243"></a><a name="instance%20ToRenderable%20(Grid%20a)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>ToRenderable</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>ToRenderable</span> <span class='hs-layout'>(</span><span class='hs-conid'>Grid</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-244"></a> <span class='hs-varid'>toRenderable</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gridToRenderable</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fmap</span> <span class='hs-varid'>toRenderable</span>
<a name="line-245"></a>
<a name="line-246"></a><a name="gridToRenderable"></a><span class='hs-definition'>gridToRenderable</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Grid</span> <span class='hs-layout'>(</span><span class='hs-conid'>Renderable</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Renderable</span> <span class='hs-varid'>a</span>
<a name="line-247"></a><span class='hs-definition'>gridToRenderable</span> <span class='hs-varid'>gt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Renderable</span> <span class='hs-varid'>minsizef</span> <span class='hs-varid'>renderf</span>
<a name="line-248"></a> <span class='hs-keyword'>where</span>
<a name="line-249"></a> <span class='hs-varid'>minsizef</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ChartBackend</span> <span class='hs-conid'>RectSize</span>
<a name="line-250"></a> <span class='hs-varid'>minsizef</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-251"></a> <span class='hs-layout'>(</span><span class='hs-varid'>widths</span><span class='hs-layout'>,</span> <span class='hs-varid'>heights</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</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'>getSizes</span> <span class='hs-varid'>gt</span>
<a name="line-252"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>sum</span> <span class='hs-layout'>(</span><span class='hs-varid'>elems</span> <span class='hs-varid'>widths</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>sum</span> <span class='hs-layout'>(</span><span class='hs-varid'>elems</span> <span class='hs-varid'>heights</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-253"></a>
<a name="line-254"></a> <span class='hs-varid'>renderf</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-keyword'>do</span>
<a name="line-255"></a> <span class='hs-layout'>(</span><span class='hs-varid'>widths</span><span class='hs-layout'>,</span> <span class='hs-varid'>heights</span><span class='hs-layout'>,</span> <span class='hs-varid'>xweights</span><span class='hs-layout'>,</span> <span class='hs-varid'>yweights</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSizes</span> <span class='hs-varid'>gt</span>
<a name="line-256"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>widths'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addExtraSpace</span> <span class='hs-varid'>w</span> <span class='hs-varid'>widths</span> <span class='hs-varid'>xweights</span>
<a name="line-257"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>heights'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addExtraSpace</span> <span class='hs-varid'>h</span> <span class='hs-varid'>heights</span> <span class='hs-varid'>yweights</span>
<a name="line-258"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>borders</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>ctotal</span> <span class='hs-varid'>widths'</span><span class='hs-layout'>,</span><span class='hs-varid'>ctotal</span> <span class='hs-varid'>heights'</span><span class='hs-layout'>)</span>
<a name="line-259"></a> <span class='hs-varid'>rf1</span> <span class='hs-varid'>borders</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span><span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-varid'>gt</span>
<a name="line-260"></a>
<a name="line-261"></a> <span class='hs-comment'>-- (x borders, y borders) -> (x,y) -> grid -> drawing</span>
<a name="line-262"></a> <span class='hs-varid'>rf1</span> <span class='hs-varid'>borders</span> <span class='hs-varid'>loc</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>j</span><span class='hs-layout'>)</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>of</span>
<a name="line-263"></a> <span class='hs-conid'>Null</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>nullPickFn</span>
<a name="line-264"></a> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>nullPickFn</span>
<a name="line-265"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Value</span> <span class='hs-layout'>(</span><span class='hs-varid'>r</span><span class='hs-layout'>,</span><span class='hs-varid'>spn</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-266"></a> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rect</span> <span class='hs-varid'>p0</span> <span class='hs-varid'>p1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkRect</span> <span class='hs-varid'>borders</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>spn</span>
<a name="line-267"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-varid'>x0</span> <span class='hs-varid'>y0</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>alignFillPoint</span> <span class='hs-varid'>p0</span>
<a name="line-268"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>y1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>alignFillPoint</span> <span class='hs-varid'>p1</span>
<a name="line-269"></a> <span class='hs-varid'>withTranslation</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-varid'>x0</span> <span class='hs-varid'>y0</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-270"></a> <span class='hs-varid'>pf</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>render</span> <span class='hs-varid'>r</span> <span class='hs-layout'>(</span><span class='hs-varid'>x1</span><span class='hs-comment'>-</span><span class='hs-varid'>x0</span><span class='hs-layout'>,</span><span class='hs-varid'>y1</span><span class='hs-comment'>-</span><span class='hs-varid'>y0</span><span class='hs-layout'>)</span>
<a name="line-271"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>newpf</span> <span class='hs-varid'>pf</span> <span class='hs-varid'>x0</span> <span class='hs-varid'>y0</span><span class='hs-layout'>)</span>
<a name="line-272"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Above</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-273"></a> <span class='hs-varid'>pf1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>rf1</span> <span class='hs-varid'>borders</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>j</span><span class='hs-layout'>)</span> <span class='hs-varid'>t1</span>
<a name="line-274"></a> <span class='hs-varid'>pf2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>rf1</span> <span class='hs-varid'>borders</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>j</span><span class='hs-varop'>+</span><span class='hs-varid'>height</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span>
<a name="line-275"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>pf</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>y</span> <span class='hs-varop'><</span> <span class='hs-layout'>(</span><span class='hs-varid'>snd</span> <span class='hs-varid'>borders</span> <span class='hs-varop'>!</span> <span class='hs-layout'>(</span><span class='hs-varid'>j</span> <span class='hs-varop'>+</span> <span class='hs-varid'>height</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-276"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>pf1</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>pf2</span> <span class='hs-varid'>p</span>
<a name="line-277"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>pf</span>
<a name="line-278"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Beside</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-279"></a> <span class='hs-varid'>pf1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>rf1</span> <span class='hs-varid'>borders</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>j</span><span class='hs-layout'>)</span> <span class='hs-varid'>t1</span>
<a name="line-280"></a> <span class='hs-varid'>pf2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>rf1</span> <span class='hs-varid'>borders</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-varid'>width</span> <span class='hs-varid'>t1</span><span class='hs-layout'>,</span><span class='hs-varid'>j</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span>
<a name="line-281"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>pf</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>x</span> <span class='hs-varop'><</span> <span class='hs-layout'>(</span><span class='hs-varid'>fst</span> <span class='hs-varid'>borders</span> <span class='hs-varop'>!</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-varid'>width</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-282"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>pf1</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>pf2</span> <span class='hs-varid'>p</span>
<a name="line-283"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>pf</span>
<a name="line-284"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Overlay</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-285"></a> <span class='hs-varid'>pf2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>rf1</span> <span class='hs-varid'>borders</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>j</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span>
<a name="line-286"></a> <span class='hs-varid'>pf1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>rf1</span> <span class='hs-varid'>borders</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>j</span><span class='hs-layout'>)</span> <span class='hs-varid'>t1</span>
<a name="line-287"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>pf</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pf1</span> <span class='hs-varid'>p</span> <span class='hs-varop'>`mplus`</span> <span class='hs-varid'>pf2</span> <span class='hs-varid'>p</span>
<a name="line-288"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>pf</span>
<a name="line-289"></a>
<a name="line-290"></a> <span class='hs-varid'>newpf</span> <span class='hs-varid'>pf</span> <span class='hs-varid'>x0</span> <span class='hs-varid'>y0</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>y1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pf</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-layout'>(</span><span class='hs-varid'>x1</span><span class='hs-comment'>-</span><span class='hs-varid'>x0</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>y1</span><span class='hs-comment'>-</span><span class='hs-varid'>y0</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-291"></a>
<a name="line-292"></a> <span class='hs-comment'>-- (x borders, y borders) -> (x,y) -> (w,h)</span>
<a name="line-293"></a> <span class='hs-comment'>-- -> rectangle of grid[x..x+w, y..y+h]</span>
<a name="line-294"></a> <span class='hs-varid'>mkRect</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>DArray</span><span class='hs-layout'>,</span> <span class='hs-conid'>DArray</span><span class='hs-layout'>)</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> <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> <span class='hs-conid'>Rect</span>
<a name="line-295"></a> <span class='hs-varid'>mkRect</span> <span class='hs-layout'>(</span><span class='hs-varid'>cwidths</span><span class='hs-layout'>,</span><span class='hs-varid'>cheights</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'>y</span><span class='hs-layout'>)</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-conid'>Rect</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>y1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-varid'>x2</span> <span class='hs-varid'>y2</span><span class='hs-layout'>)</span>
<a name="line-296"></a> <span class='hs-keyword'>where</span>
<a name="line-297"></a> <span class='hs-varid'>x1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cwidths</span> <span class='hs-varop'>!</span> <span class='hs-varid'>x</span>
<a name="line-298"></a> <span class='hs-varid'>y1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cheights</span> <span class='hs-varop'>!</span> <span class='hs-varid'>y</span>
<a name="line-299"></a> <span class='hs-varid'>x2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cwidths</span> <span class='hs-varop'>!</span> <span class='hs-varid'>min</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-varop'>+</span><span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>snd</span> <span class='hs-varop'>$</span> <span class='hs-varid'>bounds</span> <span class='hs-varid'>cwidths</span><span class='hs-layout'>)</span>
<a name="line-300"></a> <span class='hs-varid'>y2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cheights</span> <span class='hs-varop'>!</span> <span class='hs-varid'>min</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-varop'>+</span><span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>snd</span> <span class='hs-varop'>$</span> <span class='hs-varid'>bounds</span> <span class='hs-varid'>cheights</span><span class='hs-layout'>)</span>
<a name="line-301"></a> <span class='hs-comment'>-- mx = fst (bounds cwidths)</span>
<a name="line-302"></a> <span class='hs-comment'>-- my = fst (bounds cheights)</span>
<a name="line-303"></a>
<a name="line-304"></a> <span class='hs-comment'>-- total size -> item sizes -> item weights -> new item sizes such that</span>
<a name="line-305"></a> <span class='hs-comment'>-- their sum == total size, and added size is proportional to weight</span>
<a name="line-306"></a> <span class='hs-varid'>addExtraSpace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Double</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>DArray</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>DArray</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>DArray</span>
<a name="line-307"></a> <span class='hs-varid'>addExtraSpace</span> <span class='hs-varid'>size</span> <span class='hs-varid'>sizes</span> <span class='hs-varid'>weights'</span> <span class='hs-keyglyph'>=</span>
<a name="line-308"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>totalws</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>sizes</span>
<a name="line-309"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>listArray</span> <span class='hs-layout'>(</span><span class='hs-varid'>bounds</span> <span class='hs-varid'>sizes</span><span class='hs-layout'>)</span> <span class='hs-varid'>sizes'</span>
<a name="line-310"></a> <span class='hs-keyword'>where</span>
<a name="line-311"></a> <span class='hs-varid'>ws</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>elems</span> <span class='hs-varid'>weights'</span>
<a name="line-312"></a> <span class='hs-varid'>totalws</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sum</span> <span class='hs-varid'>ws</span>
<a name="line-313"></a> <span class='hs-varid'>extra</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>size</span> <span class='hs-comment'>-</span> <span class='hs-varid'>sum</span> <span class='hs-layout'>(</span><span class='hs-varid'>elems</span> <span class='hs-varid'>sizes</span><span class='hs-layout'>)</span>
<a name="line-314"></a> <span class='hs-varid'>extras</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varop'>*</span><span class='hs-layout'>(</span><span class='hs-varid'>extra</span><span class='hs-varop'>/</span><span class='hs-varid'>totalws</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>ws</span>
<a name="line-315"></a> <span class='hs-varid'>sizes'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>zipWith</span> <span class='hs-layout'>(</span><span class='hs-varop'>+</span><span class='hs-layout'>)</span> <span class='hs-varid'>extras</span> <span class='hs-layout'>(</span><span class='hs-varid'>elems</span> <span class='hs-varid'>sizes</span><span class='hs-layout'>)</span>
<a name="line-316"></a>
<a name="line-317"></a> <span class='hs-comment'>-- [1,2,3] -> [0,1,3,6].</span>
<a name="line-318"></a> <span class='hs-varid'>ctotal</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DArray</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>DArray</span>
<a name="line-319"></a> <span class='hs-varid'>ctotal</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>listArray</span> <span class='hs-layout'>(</span><span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>j</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>bounds</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>in</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>j</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-320"></a> <span class='hs-layout'>(</span><span class='hs-varid'>scanl</span> <span class='hs-layout'>(</span><span class='hs-varop'>+</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>elems</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
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