<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://code.haskell.org/~malcolm/hscolour/ -->
<title>XMonad/Layout/TabBarDecoration.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses #-}</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.TabBarDecoration</span>
<a name="line-5"></a><span class='hs-comment'>-- Copyright : (c) 2007 Andrea Rossato</span>
<a name="line-6"></a><span class='hs-comment'>-- License : BSD-style (see xmonad/LICENSE)</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Maintainer : andrea.rossato@unibz.it</span>
<a name="line-9"></a><span class='hs-comment'>-- Stability : unstable</span>
<a name="line-10"></a><span class='hs-comment'>-- Portability : unportable</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- A layout modifier to add a bar of tabs to your layouts.</span>
<a name="line-13"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-14"></a>
<a name="line-15"></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'>TabBarDecoration</span>
<a name="line-16"></a> <span class='hs-layout'>(</span> <span class='hs-comment'>-- * Usage</span>
<a name="line-17"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-18"></a> <span class='hs-varid'>simpleTabBar</span><span class='hs-layout'>,</span> <span class='hs-varid'>tabBar</span>
<a name="line-19"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>defaultTheme</span><span class='hs-layout'>,</span> <span class='hs-varid'>shrinkText</span>
<a name="line-20"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>TabBarDecoration</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>XPPosition</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-21"></a> <span class='hs-layout'>,</span> <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'>ResizeScreen</span>
<a name="line-22"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-23"></a>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span>
<a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</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'>S</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'>Layout</span><span class='hs-varop'>.</span><span class='hs-conid'>Decoration</span>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Layout</span><span class='hs-varop'>.</span><span class='hs-conid'>ResizeScreen</span>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Prompt</span> <span class='hs-layout'>(</span> <span class='hs-conid'>XPPosition</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-30"></a>
<a name="line-31"></a><span class='hs-comment'>-- $usage</span>
<a name="line-32"></a><span class='hs-comment'>-- You can use this module with the following in your</span>
<a name="line-33"></a><span class='hs-comment'>-- @~\/.xmonad\/xmonad.hs@:</span>
<a name="line-34"></a><span class='hs-comment'>--</span>
<a name="line-35"></a><span class='hs-comment'>-- > import XMonad.Layout.TabBarDecoration</span>
<a name="line-36"></a><span class='hs-comment'>--</span>
<a name="line-37"></a><span class='hs-comment'>-- Then edit your @layoutHook@ by adding the layout you want:</span>
<a name="line-38"></a><span class='hs-comment'>--</span>
<a name="line-39"></a><span class='hs-comment'>-- > main = xmonad defaultConfig { layoutHook = simpleTabBar $ layoutHook defaultConfig}</span>
<a name="line-40"></a><span class='hs-comment'>--</span>
<a name="line-41"></a><span class='hs-comment'>-- For more detailed instructions on editing the layoutHook see:</span>
<a name="line-42"></a><span class='hs-comment'>--</span>
<a name="line-43"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_the_layout_hook"</span>
<a name="line-44"></a><span class='hs-comment'>--</span>
<a name="line-45"></a><span class='hs-comment'>-- 'tabBar' will give you the possibility of setting a custom shrinker</span>
<a name="line-46"></a><span class='hs-comment'>-- and a custom theme.</span>
<a name="line-47"></a><span class='hs-comment'>--</span>
<a name="line-48"></a><span class='hs-comment'>-- The deafult theme can be dynamically change with the xmonad theme</span>
<a name="line-49"></a><span class='hs-comment'>-- selector. See "XMonad.Prompt.Theme". For more themse, look at</span>
<a name="line-50"></a><span class='hs-comment'>-- "XMonad.Util.Themes"</span>
<a name="line-51"></a>
<a name="line-52"></a><a name="simpleTabBar"></a><span class='hs-comment'>-- | Add, on the top of the screen, a simple bar of tabs to a given</span>
<a name="line-53"></a><span class='hs-comment'>-- | layout, with the default theme and the default shrinker.</span>
<a name="line-54"></a><span class='hs-definition'>simpleTabBar</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Eq</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Decoration</span> <span class='hs-conid'>TabBarDecoration</span> <span class='hs-conid'>DefaultShrinker</span><span class='hs-layout'>)</span>
<a name="line-55"></a> <span class='hs-layout'>(</span><span class='hs-conid'>ModifiedLayout</span> <span class='hs-conid'>ResizeScreen</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-varid'>a</span>
<a name="line-56"></a><span class='hs-definition'>simpleTabBar</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decoration</span> <span class='hs-varid'>shrinkText</span> <span class='hs-varid'>defaultTheme</span> <span class='hs-layout'>(</span><span class='hs-conid'>TabBar</span> <span class='hs-conid'>Top</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>resizeVertical</span> <span class='hs-num'>20</span>
<a name="line-57"></a>
<a name="line-58"></a><a name="tabBar"></a><span class='hs-comment'>-- | Same of 'simpleTabBar', but with the possibility of setting a</span>
<a name="line-59"></a><span class='hs-comment'>-- custom shrinker, a custom theme and the position: 'Top' or</span>
<a name="line-60"></a><span class='hs-comment'>-- 'Bottom'.</span>
<a name="line-61"></a><span class='hs-definition'>tabBar</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-conid'>Shrinker</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Theme</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>XPPosition</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>Decoration</span> <span class='hs-conid'>TabBarDecoration</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span>
<a name="line-62"></a><span class='hs-definition'>tabBar</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decoration</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span> <span class='hs-layout'>(</span><span class='hs-conid'>TabBar</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-63"></a>
<a name="line-64"></a><a name="TabBarDecoration"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>TabBarDecoration</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TabBar</span> <span class='hs-conid'>XPPosition</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Read</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>)</span>
<a name="line-65"></a>
<a name="line-66"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Eq</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>DecorationStyle</span> <span class='hs-conid'>TabBarDecoration</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>where</span>
<a name="line-67"></a> <span class='hs-varid'>describeDeco</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"TabBar"</span>
<a name="line-68"></a> <span class='hs-varid'>shrink</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>r</span>
<a name="line-69"></a> <span class='hs-varid'>decorationMouseDragHook</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-70"></a> <span class='hs-varid'>pureDecoration</span> <span class='hs-layout'>(</span><span class='hs-conid'>TabBar</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>dht</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-varid'>s</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-keyglyph'>=</span>
<a name="line-71"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>isInStack</span> <span class='hs-varid'>s</span> <span class='hs-varid'>w</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Rectangle</span> <span class='hs-varid'>nx</span> <span class='hs-varid'>ny</span> <span class='hs-varid'>wid</span> <span class='hs-layout'>(</span><span class='hs-varid'>fi</span> <span class='hs-varid'>dht</span><span class='hs-layout'>)</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>Nothing</span>
<a name="line-72"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>wrs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>integrate</span> <span class='hs-varid'>s</span>
<a name="line-73"></a> <span class='hs-varid'>loc</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>wh</span> <span class='hs-varop'>*</span> <span class='hs-varid'>fi</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-varop'>`div`</span> <span class='hs-varid'>max</span> <span class='hs-num'>1</span> <span class='hs-layout'>(</span><span class='hs-varid'>fi</span> <span class='hs-varop'>$</span> <span class='hs-varid'>length</span> <span class='hs-varid'>wrs</span><span class='hs-layout'>)</span>
<a name="line-74"></a> <span class='hs-varid'>wid</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>fi</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>i</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>loc</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-comment'>-</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>w</span> <span class='hs-varop'>`elemIndex`</span> <span class='hs-varid'>wrs</span>
<a name="line-75"></a> <span class='hs-varid'>ny</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>of</span>
<a name="line-76"></a> <span class='hs-conid'>Top</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>y</span>
<a name="line-77"></a> <span class='hs-conid'>Bottom</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>y</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fi</span> <span class='hs-varid'>ht</span> <span class='hs-comment'>-</span> <span class='hs-varid'>fi</span> <span class='hs-varid'>dht</span>
<a name="line-78"></a> <span class='hs-varid'>nx</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varop'>+</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>maybe</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>fi</span> <span class='hs-varop'>.</span> <span class='hs-varid'>loc</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>w</span> <span class='hs-varop'>`elemIndex`</span> <span class='hs-varid'>wrs</span>
</pre></body>
</html>
