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<a name="line-2"></a><span class='hs-comment'>{-# LINE 2 "./Graphics/Rendering/Pango/Context.chs" #-}</span>
<a name="line-3"></a><span class='hs-comment'>-- -*-haskell-*-</span>
<a name="line-4"></a><span class='hs-comment'>-- GIMP Toolkit (GTK) - text layout functions Context</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Author : Axel Simon</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Created: 16 October 2005</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Copyright (C) 1999-2005 Axel Simon</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- This library is free software; you can redistribute it and/or</span>
<a name="line-13"></a><span class='hs-comment'>-- modify it under the terms of the GNU Lesser General Public</span>
<a name="line-14"></a><span class='hs-comment'>-- License as published by the Free Software Foundation; either</span>
<a name="line-15"></a><span class='hs-comment'>-- version 2.1 of the License, or (at your option) any later version.</span>
<a name="line-16"></a><span class='hs-comment'>--</span>
<a name="line-17"></a><span class='hs-comment'>-- This library is distributed in the hope that it will be useful,</span>
<a name="line-18"></a><span class='hs-comment'>-- but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="line-19"></a><span class='hs-comment'>-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="line-20"></a><span class='hs-comment'>-- Lesser General Public License for more details.</span>
<a name="line-21"></a><span class='hs-comment'>--</span>
<a name="line-22"></a><span class='hs-comment'>--</span>
<a name="line-23"></a><span class='hs-comment'>-- |</span>
<a name="line-24"></a><span class='hs-comment'>-- Maintainer : gtk2hs-users@lists.sourceforge.net</span>
<a name="line-25"></a><span class='hs-comment'>-- Stability : provisional</span>
<a name="line-26"></a><span class='hs-comment'>-- Portability : portable (depends on GHC)</span>
<a name="line-27"></a><span class='hs-comment'>--</span>
<a name="line-28"></a><span class='hs-comment'>-- This module defines 'PangoContext's,</span>
<a name="line-29"></a><span class='hs-comment'>-- an environment that provides information on available fonts,</span>
<a name="line-30"></a><span class='hs-comment'>-- internationalization and output capabilities of the medium. Given</span>
<a name="line-31"></a><span class='hs-comment'>-- such a context, text can be rendered into strings of glyphs (see</span>
<a name="line-32"></a><span class='hs-comment'>-- 'Graphics.Rendering.Pango.Rendering') or, at a more abstract level, using</span>
<a name="line-33"></a><span class='hs-comment'>-- layouts (see 'Graphics.Rendering.Pango.Layout.Layout').</span>
<a name="line-34"></a><span class='hs-comment'>--</span>
<a name="line-35"></a><span class='hs-comment'>-- * A 'PangoContext' is a prerequisite for all text rendering functions.</span>
<a name="line-36"></a><span class='hs-comment'>-- A context can be created from scratch or, more conveniently, by using</span>
<a name="line-37"></a><span class='hs-comment'>-- default settings that are already used in the application. When text</span>
<a name="line-38"></a><span class='hs-comment'>-- is rendered through Gdk, use</span>
<a name="line-39"></a><span class='hs-comment'>-- 'Graphics.UI.Gtk.Abstract.Widget.widgetCreatePangoContext', if you use</span>
<a name="line-40"></a><span class='hs-comment'>-- the Cairo rendering engine, a new context can be acquired using</span>
<a name="line-41"></a><span class='hs-comment'>-- 'Graphics.Rendering.Cairo.cairoCreateContext'.</span>
<a name="line-42"></a><span class='hs-comment'>--</span>
<a name="line-43"></a><span class='hs-comment'>-- * The properties of a 'PangoContext' can be changed which, in turn, has</span>
<a name="line-44"></a><span class='hs-comment'>-- an effect on how text is rendered. To reflect such a change in the</span>
<a name="line-45"></a><span class='hs-comment'>-- rendered text, call 'Graphics.Rendering.Pango.Layout.layoutContextChanged'.</span>
<a name="line-46"></a><span class='hs-comment'>--</span>
<a name="line-47"></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'>Pango</span><span class='hs-varop'>.</span><span class='hs-conid'>Context</span> <span class='hs-layout'>(</span>
<a name="line-48"></a><span class='hs-comment'>-- * Types and Methods for 'PangoContext's</span>
<a name="line-49"></a> <span class='hs-conid'>PangoContext</span><span class='hs-layout'>,</span>
<a name="line-50"></a> <span class='hs-conid'>PangoContextClass</span><span class='hs-layout'>,</span>
<a name="line-51"></a> <span class='hs-varid'>contextListFamilies</span><span class='hs-layout'>,</span>
<a name="line-52"></a><span class='hs-comment'>-- contextLoadFont,</span>
<a name="line-53"></a><span class='hs-comment'>-- contextLoadFontSet,</span>
<a name="line-54"></a> <span class='hs-varid'>contextGetMetrics</span><span class='hs-layout'>,</span>
<a name="line-55"></a> <span class='hs-varid'>contextSetFontDescription</span><span class='hs-layout'>,</span>
<a name="line-56"></a> <span class='hs-varid'>contextGetFontDescription</span><span class='hs-layout'>,</span>
<a name="line-57"></a> <span class='hs-conid'>Language</span><span class='hs-layout'>,</span>
<a name="line-58"></a> <span class='hs-varid'>emptyLanguage</span><span class='hs-layout'>,</span>
<a name="line-59"></a> <span class='hs-varid'>languageFromString</span><span class='hs-layout'>,</span>
<a name="line-60"></a> <span class='hs-varid'>contextSetLanguage</span><span class='hs-layout'>,</span>
<a name="line-61"></a> <span class='hs-varid'>contextGetLanguage</span><span class='hs-layout'>,</span>
<a name="line-62"></a> <span class='hs-varid'>contextSetTextDir</span><span class='hs-layout'>,</span>
<a name="line-63"></a> <span class='hs-varid'>contextGetTextDir</span><span class='hs-layout'>,</span>
<a name="line-64"></a>
<a name="line-65"></a> <span class='hs-varid'>contextSetTextGravity</span><span class='hs-layout'>,</span>
<a name="line-66"></a> <span class='hs-varid'>contextGetTextGravity</span><span class='hs-layout'>,</span>
<a name="line-67"></a> <span class='hs-varid'>contextSetTextGravityHint</span><span class='hs-layout'>,</span>
<a name="line-68"></a> <span class='hs-varid'>contextGetTextGravityHint</span><span class='hs-layout'>,</span>
<a name="line-69"></a>
<a name="line-70"></a>
<a name="line-71"></a> <span class='hs-varid'>contextGetMatrix</span><span class='hs-layout'>,</span>
<a name="line-72"></a> <span class='hs-varid'>contextSetMatrix</span><span class='hs-layout'>,</span>
<a name="line-73"></a>
<a name="line-74"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-75"></a>
<a name="line-76"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-varid'>liftM</span><span class='hs-layout'>)</span>
<a name="line-77"></a>
<a name="line-78"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Glib</span><span class='hs-varop'>.</span><span class='hs-conid'>FFI</span>
<a name="line-79"></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'>Pango</span><span class='hs-varop'>.</span><span class='hs-conid'>Enums</span>
<a name="line-80"></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'>Pango</span><span class='hs-varop'>.</span><span class='hs-conid'>Structs</span>
<a name="line-81"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Glib</span><span class='hs-varop'>.</span><span class='hs-conid'>GObject</span> <span class='hs-layout'>(</span><span class='hs-varid'>makeNewGObject</span><span class='hs-layout'>)</span>
<a name="line-82"></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'>Pango</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-83"></a><span class='hs-comment'>{-# LINE 82 "./Graphics/Rendering/Pango/Context.chs" #-}</span>
<a name="line-84"></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'>Pango</span><span class='hs-varop'>.</span><span class='hs-conid'>BasicTypes</span>
<a name="line-85"></a><span class='hs-comment'>{-# LINE 83 "./Graphics/Rendering/Pango/Context.chs" #-}</span>
<a name="line-86"></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'>Pango</span><span class='hs-varop'>.</span><span class='hs-conid'>Enums</span> <span class='hs-layout'>(</span> <span class='hs-conid'>FontMetrics</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-87"></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'>Cairo</span><span class='hs-varop'>.</span><span class='hs-conid'>Matrix</span>
<a name="line-88"></a><span class='hs-comment'>{-# LINE 85 "./Graphics/Rendering/Pango/Context.chs" #-}</span>
<a name="line-89"></a>
<a name="line-90"></a>
<a name="line-91"></a>
<a name="line-92"></a><span class='hs-comment'>{-# LINE 88 "./Graphics/Rendering/Pango/Context.chs" #-}</span>
<a name="line-93"></a>
<a name="line-94"></a>
<a name="line-95"></a><a name="contextListFamilies"></a><span class='hs-comment'>-- | Retrieve a list of all available font families.</span>
<a name="line-96"></a><span class='hs-comment'>--</span>
<a name="line-97"></a><span class='hs-comment'>-- * A font family is the name of the font without further attributes</span>
<a name="line-98"></a><span class='hs-comment'>-- like slant, variant or size.</span>
<a name="line-99"></a><span class='hs-comment'>--</span>
<a name="line-100"></a><span class='hs-definition'>contextListFamilies</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FontFamily</span><span class='hs-keyglyph'>]</span>
<a name="line-101"></a><span class='hs-definition'>contextListFamilies</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>sizePtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>ptrPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-102"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_list_families</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span><span class='hs-layout'>)</span> <span class='hs-varid'>c</span> <span class='hs-varid'>ptrPtr</span> <span class='hs-varid'>sizePtr</span>
<a name="line-103"></a> <span class='hs-varid'>ptr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>ptrPtr</span>
<a name="line-104"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>sizePtr</span>
<a name="line-105"></a> <span class='hs-comment'>-- c2hs gets FontFamily*** wrong as FontFamily**, therefore the cast</span>
<a name="line-106"></a> <span class='hs-varid'>familyPtrs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peekArray</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>ptr</span><span class='hs-layout'>)</span>
<a name="line-107"></a> <span class='hs-varid'>fams</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-layout'>(</span><span class='hs-varid'>makeNewGObject</span> <span class='hs-varid'>mkFontFamily</span> <span class='hs-varop'>.</span> <span class='hs-varid'>return</span><span class='hs-layout'>)</span> <span class='hs-varid'>familyPtrs</span>
<a name="line-108"></a> <span class='hs-varid'>g_free</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>ptr</span><span class='hs-layout'>)</span>
<a name="line-109"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>fams</span>
<a name="line-110"></a>
<a name="line-111"></a><a name="contextGetMetrics"></a><span class='hs-comment'>-- | Query the metrics of the given font implied by the font description.</span>
<a name="line-112"></a><span class='hs-comment'>--</span>
<a name="line-113"></a><span class='hs-definition'>contextGetMetrics</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FontDescription</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Language</span> <span class='hs-keyglyph'>-></span>
<a name="line-114"></a> <span class='hs-conid'>IO</span> <span class='hs-conid'>FontMetrics</span>
<a name="line-115"></a><span class='hs-definition'>contextGetMetrics</span> <span class='hs-varid'>pc</span> <span class='hs-varid'>fd</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-116"></a> <span class='hs-varid'>mPtr</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>FontDescription</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Language</span> <span class='hs-varid'>arg3</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_get_metrics</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>argPtr2</span> <span class='hs-varid'>arg3</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span> <span class='hs-varid'>fd</span> <span class='hs-varid'>l</span>
<a name="line-117"></a> <span class='hs-varid'>ascent</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pango_font_metrics_get_ascent</span> <span class='hs-varid'>mPtr</span>
<a name="line-118"></a> <span class='hs-varid'>descent</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pango_font_metrics_get_descent</span> <span class='hs-varid'>mPtr</span>
<a name="line-119"></a> <span class='hs-varid'>approximate_char_width</span> <span class='hs-keyglyph'><-</span>
<a name="line-120"></a> <span class='hs-varid'>pango_font_metrics_get_approximate_char_width</span> <span class='hs-varid'>mPtr</span>
<a name="line-121"></a> <span class='hs-varid'>approximate_digit_width</span> <span class='hs-keyglyph'><-</span>
<a name="line-122"></a> <span class='hs-varid'>pango_font_metrics_get_approximate_digit_width</span> <span class='hs-varid'>mPtr</span>
<a name="line-123"></a>
<a name="line-124"></a> <span class='hs-varid'>underline_position</span> <span class='hs-keyglyph'><-</span>
<a name="line-125"></a> <span class='hs-varid'>pango_font_metrics_get_underline_position</span> <span class='hs-varid'>mPtr</span>
<a name="line-126"></a> <span class='hs-varid'>underline_thickness</span> <span class='hs-keyglyph'><-</span>
<a name="line-127"></a> <span class='hs-varid'>pango_font_metrics_get_underline_thickness</span> <span class='hs-varid'>mPtr</span>
<a name="line-128"></a> <span class='hs-varid'>strikethrough_position</span> <span class='hs-keyglyph'><-</span>
<a name="line-129"></a> <span class='hs-varid'>pango_font_metrics_get_strikethrough_position</span> <span class='hs-varid'>mPtr</span>
<a name="line-130"></a> <span class='hs-varid'>strikethrough_thickness</span> <span class='hs-keyglyph'><-</span>
<a name="line-131"></a> <span class='hs-varid'>pango_font_metrics_get_strikethrough_thickness</span> <span class='hs-varid'>mPtr</span>
<a name="line-132"></a>
<a name="line-133"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>FontMetrics</span>
<a name="line-134"></a> <span class='hs-layout'>(</span><span class='hs-varid'>intToPu</span> <span class='hs-varid'>ascent</span><span class='hs-layout'>)</span>
<a name="line-135"></a> <span class='hs-layout'>(</span><span class='hs-varid'>intToPu</span> <span class='hs-varid'>descent</span><span class='hs-layout'>)</span>
<a name="line-136"></a> <span class='hs-layout'>(</span><span class='hs-varid'>intToPu</span> <span class='hs-varid'>approximate_char_width</span><span class='hs-layout'>)</span>
<a name="line-137"></a> <span class='hs-layout'>(</span><span class='hs-varid'>intToPu</span> <span class='hs-varid'>approximate_digit_width</span><span class='hs-layout'>)</span>
<a name="line-138"></a>
<a name="line-139"></a> <span class='hs-layout'>(</span><span class='hs-varid'>intToPu</span> <span class='hs-varid'>underline_thickness</span><span class='hs-layout'>)</span>
<a name="line-140"></a> <span class='hs-layout'>(</span><span class='hs-varid'>intToPu</span> <span class='hs-varid'>underline_position</span><span class='hs-layout'>)</span>
<a name="line-141"></a> <span class='hs-layout'>(</span><span class='hs-varid'>intToPu</span> <span class='hs-varid'>strikethrough_thickness</span><span class='hs-layout'>)</span>
<a name="line-142"></a> <span class='hs-layout'>(</span><span class='hs-varid'>intToPu</span> <span class='hs-varid'>strikethrough_position</span><span class='hs-layout'>)</span>
<a name="line-143"></a>
<a name="line-144"></a> <span class='hs-layout'>)</span>
<a name="line-145"></a>
<a name="line-146"></a><a name="contextSetFontDescription"></a><span class='hs-comment'>-- | Set the default 'FontDescription' of this context.</span>
<a name="line-147"></a><span class='hs-comment'>--</span>
<a name="line-148"></a><span class='hs-definition'>contextSetFontDescription</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FontDescription</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-149"></a><span class='hs-definition'>contextSetFontDescription</span> <span class='hs-varid'>pc</span> <span class='hs-varid'>fd</span> <span class='hs-keyglyph'>=</span>
<a name="line-150"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>FontDescription</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_set_font_description</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>argPtr2</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span> <span class='hs-varid'>fd</span>
<a name="line-151"></a>
<a name="line-152"></a><a name="contextGetFontDescription"></a><span class='hs-comment'>-- | Get the current 'FontDescription' of this context.</span>
<a name="line-153"></a><span class='hs-comment'>--</span>
<a name="line-154"></a><span class='hs-definition'>contextGetFontDescription</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>FontDescription</span>
<a name="line-155"></a><span class='hs-definition'>contextGetFontDescription</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-156"></a> <span class='hs-varid'>fdPtrConst</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_get_font_description</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span>
<a name="line-157"></a> <span class='hs-varid'>fdPtr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pango_font_description_copy</span> <span class='hs-varid'>fdPtrConst</span>
<a name="line-158"></a> <span class='hs-varid'>makeNewFontDescription</span> <span class='hs-varid'>fdPtr</span>
<a name="line-159"></a>
<a name="line-160"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_font_description_copy"</span>
<a name="line-161"></a> <span class='hs-varid'>pango_font_description_copy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>FontDescription</span> <span class='hs-keyglyph'>-></span>
<a name="line-162"></a> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>FontDescription</span><span class='hs-layout'>)</span>
<a name="line-163"></a>
<a name="line-164"></a><a name="contextSetLanguage"></a><span class='hs-comment'>-- | Set the default 'Language' of this context.</span>
<a name="line-165"></a><span class='hs-comment'>--</span>
<a name="line-166"></a><span class='hs-definition'>contextSetLanguage</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Language</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-167"></a><span class='hs-definition'>contextSetLanguage</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Language</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_set_language</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span>
<a name="line-168"></a><span class='hs-comment'>{-# LINE 163 "./Graphics/Rendering/Pango/Context.chs" #-}</span>
<a name="line-169"></a>
<a name="line-170"></a><a name="contextGetLanguage"></a><span class='hs-comment'>-- | Get the current 'Language' of this context.</span>
<a name="line-171"></a><span class='hs-comment'>--</span>
<a name="line-172"></a><span class='hs-definition'>contextGetLanguage</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Language</span>
<a name="line-173"></a><span class='hs-definition'>contextGetLanguage</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-conid'>Language</span> <span class='hs-varop'>$</span>
<a name="line-174"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_get_language</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span>
<a name="line-175"></a>
<a name="line-176"></a><a name="contextSetTextDir"></a><span class='hs-comment'>-- | Set the default text direction of this context.</span>
<a name="line-177"></a><span class='hs-comment'>--</span>
<a name="line-178"></a><span class='hs-definition'>contextSetTextDir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PangoDirection</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-179"></a><span class='hs-definition'>contextSetTextDir</span> <span class='hs-varid'>pc</span> <span class='hs-varid'>dir</span> <span class='hs-keyglyph'>=</span>
<a name="line-180"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_set_base_dir</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromEnum</span> <span class='hs-varid'>dir</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-181"></a>
<a name="line-182"></a><a name="contextGetTextDir"></a><span class='hs-comment'>-- | Get the current text direction of this context.</span>
<a name="line-183"></a><span class='hs-comment'>--</span>
<a name="line-184"></a><span class='hs-definition'>contextGetTextDir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>PangoDirection</span>
<a name="line-185"></a><span class='hs-definition'>contextGetTextDir</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-layout'>(</span><span class='hs-varid'>toEnum</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromIntegral</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-186"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_get_base_dir</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span>
<a name="line-187"></a>
<a name="line-188"></a>
<a name="line-189"></a><a name="contextSetTextGravity"></a><span class='hs-comment'>-- | Set the text gravity of this context. If the given value is</span>
<a name="line-190"></a><span class='hs-comment'>-- 'PangoGravityAuto' then the gravity is derived from the current rotation</span>
<a name="line-191"></a><span class='hs-comment'>-- matrix.</span>
<a name="line-192"></a><span class='hs-comment'>--</span>
<a name="line-193"></a><span class='hs-definition'>contextSetTextGravity</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PangoGravity</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-194"></a><span class='hs-definition'>contextSetTextGravity</span> <span class='hs-varid'>pc</span> <span class='hs-varid'>gravity</span> <span class='hs-keyglyph'>=</span>
<a name="line-195"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_set_base_gravity</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromEnum</span> <span class='hs-varid'>gravity</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-196"></a>
<a name="line-197"></a><a name="contextGetTextGravity"></a><span class='hs-comment'>-- | Get the current text gravity of this context.</span>
<a name="line-198"></a><span class='hs-comment'>--</span>
<a name="line-199"></a><span class='hs-definition'>contextGetTextGravity</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>PangoGravity</span>
<a name="line-200"></a><span class='hs-definition'>contextGetTextGravity</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-layout'>(</span><span class='hs-varid'>toEnum</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromIntegral</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-201"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_get_base_gravity</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span>
<a name="line-202"></a>
<a name="line-203"></a><a name="contextSetTextGravityHint"></a><span class='hs-comment'>-- | Set the text gravity hint of this context.</span>
<a name="line-204"></a><span class='hs-comment'>--</span>
<a name="line-205"></a><span class='hs-definition'>contextSetTextGravityHint</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PangoGravityHint</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-206"></a><span class='hs-definition'>contextSetTextGravityHint</span> <span class='hs-varid'>pc</span> <span class='hs-varid'>gravity</span> <span class='hs-keyglyph'>=</span>
<a name="line-207"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_set_gravity_hint</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromEnum</span> <span class='hs-varid'>gravity</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-208"></a>
<a name="line-209"></a><a name="contextGetTextGravityHint"></a><span class='hs-comment'>-- | Get the current text gravity of this context.</span>
<a name="line-210"></a><span class='hs-comment'>--</span>
<a name="line-211"></a><span class='hs-definition'>contextGetTextGravityHint</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>PangoGravityHint</span>
<a name="line-212"></a><span class='hs-definition'>contextGetTextGravityHint</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-layout'>(</span><span class='hs-varid'>toEnum</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromIntegral</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-213"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_get_gravity_hint</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span>
<a name="line-214"></a>
<a name="line-215"></a>
<a name="line-216"></a>
<a name="line-217"></a><a name="contextGetMatrix"></a><span class='hs-comment'>-- | Gets the transformation matrix that will be applied when rendering with</span>
<a name="line-218"></a><span class='hs-comment'>-- this context.</span>
<a name="line-219"></a><span class='hs-comment'>--</span>
<a name="line-220"></a><span class='hs-comment'>-- * Since Pango 1.6</span>
<a name="line-221"></a><span class='hs-definition'>contextGetMatrix</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Matrix</span>
<a name="line-222"></a><span class='hs-definition'>contextGetMatrix</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-223"></a> <span class='hs-varid'>matPtr</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_get_matrix</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span>
<a name="line-224"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>matPtr</span><span class='hs-varop'>==</span><span class='hs-varid'>nullPtr</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-varid'>identity</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>peek</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>matPtr</span><span class='hs-layout'>)</span>
<a name="line-225"></a>
<a name="line-226"></a><a name="contextSetMatrix"></a><span class='hs-comment'>-- | Sets the transformation matrix that will be applied when rendering with</span>
<a name="line-227"></a><span class='hs-comment'>-- this context. Note that any metrics reported by other functions are in user</span>
<a name="line-228"></a><span class='hs-comment'>-- space coordinates before the application of the matrix, not device-space</span>
<a name="line-229"></a><span class='hs-comment'>-- coordinates after the application of the matrix. So, they don't scale with</span>
<a name="line-230"></a><span class='hs-comment'>-- the matrix, though they may change slightly for different matrices,</span>
<a name="line-231"></a><span class='hs-comment'>-- depending on how the text is fit to the pixel grid.</span>
<a name="line-232"></a><span class='hs-comment'>--</span>
<a name="line-233"></a><span class='hs-comment'>-- * Since Pango 1.6</span>
<a name="line-234"></a><span class='hs-definition'>contextSetMatrix</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Matrix</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-235"></a><span class='hs-definition'>contextSetMatrix</span> <span class='hs-varid'>pc</span> <span class='hs-varid'>mat</span>
<a name="line-236"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>mat</span><span class='hs-varop'>==</span><span class='hs-varid'>identity</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_set_matrix</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span> <span class='hs-varid'>nullPtr</span>
<a name="line-237"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>with</span> <span class='hs-varid'>mat</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>matPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-238"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_context_set_matrix</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>matPtr</span><span class='hs-layout'>)</span>
<a name="line-239"></a>
<a name="line-240"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_list_families"</span>
<a name="line-241"></a> <span class='hs-varid'>pango_context_list_families</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</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'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>FontFamily</span><span class='hs-layout'>)</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'>Ptr</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-242"></a>
<a name="line-243"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"g_free"</span>
<a name="line-244"></a> <span class='hs-varid'>g_free</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-245"></a>
<a name="line-246"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_get_metrics"</span>
<a name="line-247"></a> <span class='hs-varid'>pango_context_get_metrics</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</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'>Ptr</span> <span class='hs-conid'>FontDescription</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'>Ptr</span> <span class='hs-conid'>Language</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-248"></a>
<a name="line-249"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_font_metrics_get_ascent"</span>
<a name="line-250"></a> <span class='hs-varid'>pango_font_metrics_get_ascent</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-251"></a>
<a name="line-252"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_font_metrics_get_descent"</span>
<a name="line-253"></a> <span class='hs-varid'>pango_font_metrics_get_descent</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-254"></a>
<a name="line-255"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_font_metrics_get_approximate_char_width"</span>
<a name="line-256"></a> <span class='hs-varid'>pango_font_metrics_get_approximate_char_width</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-257"></a>
<a name="line-258"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_font_metrics_get_approximate_digit_width"</span>
<a name="line-259"></a> <span class='hs-varid'>pango_font_metrics_get_approximate_digit_width</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-260"></a>
<a name="line-261"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_font_metrics_get_underline_position"</span>
<a name="line-262"></a> <span class='hs-varid'>pango_font_metrics_get_underline_position</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-263"></a>
<a name="line-264"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_font_metrics_get_underline_thickness"</span>
<a name="line-265"></a> <span class='hs-varid'>pango_font_metrics_get_underline_thickness</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-266"></a>
<a name="line-267"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_font_metrics_get_strikethrough_position"</span>
<a name="line-268"></a> <span class='hs-varid'>pango_font_metrics_get_strikethrough_position</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-269"></a>
<a name="line-270"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_font_metrics_get_strikethrough_thickness"</span>
<a name="line-271"></a> <span class='hs-varid'>pango_font_metrics_get_strikethrough_thickness</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-272"></a>
<a name="line-273"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_set_font_description"</span>
<a name="line-274"></a> <span class='hs-varid'>pango_context_set_font_description</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</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'>Ptr</span> <span class='hs-conid'>FontDescription</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-275"></a>
<a name="line-276"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_get_font_description"</span>
<a name="line-277"></a> <span class='hs-varid'>pango_context_get_font_description</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>FontDescription</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-278"></a>
<a name="line-279"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_set_language"</span>
<a name="line-280"></a> <span class='hs-varid'>pango_context_set_language</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</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'>Ptr</span> <span class='hs-conid'>Language</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-281"></a>
<a name="line-282"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_get_language"</span>
<a name="line-283"></a> <span class='hs-varid'>pango_context_get_language</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Language</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-284"></a>
<a name="line-285"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_set_base_dir"</span>
<a name="line-286"></a> <span class='hs-varid'>pango_context_set_base_dir</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-287"></a>
<a name="line-288"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_get_base_dir"</span>
<a name="line-289"></a> <span class='hs-varid'>pango_context_get_base_dir</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-290"></a>
<a name="line-291"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_set_base_gravity"</span>
<a name="line-292"></a> <span class='hs-varid'>pango_context_set_base_gravity</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-293"></a>
<a name="line-294"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_get_base_gravity"</span>
<a name="line-295"></a> <span class='hs-varid'>pango_context_get_base_gravity</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-296"></a>
<a name="line-297"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_set_gravity_hint"</span>
<a name="line-298"></a> <span class='hs-varid'>pango_context_set_gravity_hint</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-299"></a>
<a name="line-300"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_get_gravity_hint"</span>
<a name="line-301"></a> <span class='hs-varid'>pango_context_get_gravity_hint</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-302"></a>
<a name="line-303"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_get_matrix"</span>
<a name="line-304"></a> <span class='hs-varid'>pango_context_get_matrix</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-305"></a>
<a name="line-306"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"pango_context_set_matrix"</span>
<a name="line-307"></a> <span class='hs-varid'>pango_context_set_matrix</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</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'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
</pre></body>
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