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<pre><a name="line-1"></a>
<a name="line-2"></a><span class='hs-comment'>{-# LINE 2 "./Graphics/Rendering/Pango/Cairo.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) Cair Pango integration</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Author : Duncan Coutts, Axel Simon</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Created: 17 August 2005</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Copyright (C) 2005 Duncan Coutts</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'>-- Maintainer : gtk2hs-users@lists.sourceforge.net</span>
<a name="line-24"></a><span class='hs-comment'>-- Stability : provisional</span>
<a name="line-25"></a><span class='hs-comment'>-- Portability : portable (depends on GHC)</span>
<a name="line-26"></a><span class='hs-comment'>--</span>
<a name="line-27"></a><span class='hs-comment'>--</span>
<a name="line-28"></a><span class='hs-comment'>-- Pango specific functions to for redering with Cairo.</span>
<a name="line-29"></a><span class='hs-comment'>--</span>
<a name="line-30"></a><span class='hs-comment'>-- Cairo is a graphics library that supports vector graphics and image</span>
<a name="line-31"></a><span class='hs-comment'>-- compositing that can be used with Pango. The functions in this module provide</span>
<a name="line-32"></a><span class='hs-comment'>-- ways of rendering text in Cairo using Pango.</span>
<a name="line-33"></a><span class='hs-comment'>--</span>
<a name="line-34"></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'>Cairo</span> <span class='hs-layout'>(</span>
<a name="line-35"></a> <span class='hs-comment'>-- * Global Cairo settings.</span>
<a name="line-36"></a> <span class='hs-varid'>cairoFontMapGetDefault</span><span class='hs-layout'>,</span>
<a name="line-37"></a> <span class='hs-varid'>cairoFontMapSetResolution</span><span class='hs-layout'>,</span>
<a name="line-38"></a> <span class='hs-varid'>cairoFontMapGetResolution</span><span class='hs-layout'>,</span>
<a name="line-39"></a> <span class='hs-varid'>cairoCreateContext</span><span class='hs-layout'>,</span>
<a name="line-40"></a> <span class='hs-varid'>cairoContextSetResolution</span><span class='hs-layout'>,</span>
<a name="line-41"></a> <span class='hs-varid'>cairoContextGetResolution</span><span class='hs-layout'>,</span>
<a name="line-42"></a> <span class='hs-varid'>cairoContextSetFontOptions</span><span class='hs-layout'>,</span>
<a name="line-43"></a> <span class='hs-varid'>cairoContextGetFontOptions</span><span class='hs-layout'>,</span>
<a name="line-44"></a> <span class='hs-comment'>-- * Functions for the 'Render' monad.</span>
<a name="line-45"></a> <span class='hs-varid'>setSourceColor</span><span class='hs-layout'>,</span>
<a name="line-46"></a> <span class='hs-varid'>updateContext</span><span class='hs-layout'>,</span>
<a name="line-47"></a> <span class='hs-varid'>createLayout</span><span class='hs-layout'>,</span>
<a name="line-48"></a> <span class='hs-varid'>updateLayout</span><span class='hs-layout'>,</span>
<a name="line-49"></a> <span class='hs-varid'>showGlyphString</span><span class='hs-layout'>,</span>
<a name="line-50"></a> <span class='hs-varid'>showLayoutLine</span><span class='hs-layout'>,</span>
<a name="line-51"></a> <span class='hs-varid'>showLayout</span><span class='hs-layout'>,</span>
<a name="line-52"></a> <span class='hs-varid'>glyphStringPath</span><span class='hs-layout'>,</span>
<a name="line-53"></a> <span class='hs-varid'>layoutLinePath</span><span class='hs-layout'>,</span>
<a name="line-54"></a> <span class='hs-varid'>layoutPath</span>
<a name="line-55"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-56"></a>
<a name="line-57"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span> <span class='hs-layout'>(</span><span class='hs-varid'>bracket</span><span class='hs-layout'>)</span>
<a name="line-58"></a>
<a name="line-59"></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-60"></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'>constructNewGObject</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeNewGObject</span><span class='hs-layout'>,</span>
<a name="line-61"></a> <span class='hs-varid'>objectRef</span><span class='hs-layout'>,</span> <span class='hs-varid'>objectUnref</span><span class='hs-layout'>)</span>
<a name="line-62"></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-63"></a><span class='hs-comment'>{-# LINE 62 "./Graphics/Rendering/Pango/Cairo.chs" #-}</span>
<a name="line-64"></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-65"></a><span class='hs-comment'>{-# LINE 63 "./Graphics/Rendering/Pango/Cairo.chs" #-}</span>
<a name="line-66"></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> <span class='hs-layout'>(</span> <span class='hs-varid'>pangoItemGetFont</span><span class='hs-layout'>,</span> <span class='hs-conid'>Color</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-67"></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'>Layout</span> <span class='hs-layout'>(</span> <span class='hs-varid'>layoutSetText</span> <span class='hs-layout'>)</span>
<a name="line-68"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>IORef</span>
<a name="line-69"></a>
<a name="line-70"></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'>Types</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Cairo</span>
<a name="line-71"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</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'>Internal</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Cairo</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span>
<a name="line-72"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</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-keyword'>as</span> <span class='hs-conid'>Cairo</span>
<a name="line-73"></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'>Internal</span> <span class='hs-layout'>(</span><span class='hs-conid'>Render</span><span class='hs-layout'>(</span><span class='hs-conid'>Render</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-74"></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-varop'>.</span><span class='hs-conid'>Reader</span>
<a name="line-75"></a>
<a name="line-76"></a>
<a name="line-77"></a><span class='hs-comment'>{-# LINE 74 "./Graphics/Rendering/Pango/Cairo.chs" #-}</span>
<a name="line-78"></a>
<a name="line-79"></a><span class='hs-comment'>--------------------</span>
<a name="line-80"></a><span class='hs-comment'>-- Methods</span>
<a name="line-81"></a>
<a name="line-82"></a><a name="setSourceColor"></a><span class='hs-comment'>-- | Sets the specified 'Color' as the source color of the 'Render' context.</span>
<a name="line-83"></a><span class='hs-comment'>--</span>
<a name="line-84"></a><span class='hs-definition'>setSourceColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Color</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Render</span> <span class='hs-conid'>()</span>
<a name="line-85"></a><span class='hs-definition'>setSourceColor</span> <span class='hs-layout'>(</span><span class='hs-conid'>Color</span> <span class='hs-varid'>red</span> <span class='hs-varid'>green</span> <span class='hs-varid'>blue</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-86"></a> <span class='hs-conid'>Cairo</span><span class='hs-varop'>.</span><span class='hs-varid'>setSourceRGB</span>
<a name="line-87"></a> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>red</span> <span class='hs-varop'>/</span> <span class='hs-num'>65535.0</span><span class='hs-layout'>)</span>
<a name="line-88"></a> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>green</span> <span class='hs-varop'>/</span> <span class='hs-num'>65535.0</span><span class='hs-layout'>)</span>
<a name="line-89"></a> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>blue</span> <span class='hs-varop'>/</span> <span class='hs-num'>65535.0</span><span class='hs-layout'>)</span>
<a name="line-90"></a>
<a name="line-91"></a><span class='hs-comment'>-- cairo_font_map_new cannot be bound due to incorrect memory management</span>
<a name="line-92"></a><span class='hs-comment'>-- in functions like font_map_list_families that create new structures</span>
<a name="line-93"></a><span class='hs-comment'>-- that store the font map without referencing them</span>
<a name="line-94"></a>
<a name="line-95"></a><a name="cairoFontMapGetDefault"></a><span class='hs-comment'>-- | Retrieve the default 'Graphics.Rendering.Pango.FontMap' that contains a</span>
<a name="line-96"></a><span class='hs-comment'>-- list of available fonts.</span>
<a name="line-97"></a><span class='hs-comment'>--</span>
<a name="line-98"></a><span class='hs-comment'>-- * One purpose of creating an explicit</span>
<a name="line-99"></a><span class='hs-comment'>-- 'Graphics.Rendering.Pango.Font.FontMap' is to set</span>
<a name="line-100"></a><span class='hs-comment'>-- a different scaling factor between font sizes (in points, pt) and</span>
<a name="line-101"></a><span class='hs-comment'>-- Cairo units (in pixels). The default is 96dpi (dots per inch) which</span>
<a name="line-102"></a><span class='hs-comment'>-- corresponds to an average screen as output medium. A 10pt font will</span>
<a name="line-103"></a><span class='hs-comment'>-- therefore scale to</span>
<a name="line-104"></a><span class='hs-comment'>-- @10pt * (1\/72 pt\/inch) * (96 pixel\/inch) = 13.3 pixel@.</span>
<a name="line-105"></a><span class='hs-comment'>--</span>
<a name="line-106"></a><span class='hs-definition'>cairoFontMapGetDefault</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>FontMap</span>
<a name="line-107"></a><span class='hs-definition'>cairoFontMapGetDefault</span> <span class='hs-keyglyph'>=</span>
<a name="line-108"></a> <span class='hs-varid'>makeNewGObject</span> <span class='hs-varid'>mkFontMap</span> <span class='hs-varop'>$</span> <span class='hs-varid'>pango_cairo_font_map_get_default</span>
<a name="line-109"></a><span class='hs-comment'>{-# LINE 105 "./Graphics/Rendering/Pango/Cairo.chs" #-}</span>
<a name="line-110"></a>
<a name="line-111"></a><a name="cairoFontMapSetResolution"></a><span class='hs-comment'>-- | Set the scaling factor between font size and Cairo units.</span>
<a name="line-112"></a><span class='hs-comment'>--</span>
<a name="line-113"></a><span class='hs-comment'>-- * Value is in dots per inch (dpi). See 'cairoFontMapGetDefault'.</span>
<a name="line-114"></a><span class='hs-comment'>--</span>
<a name="line-115"></a><span class='hs-definition'>cairoFontMapSetResolution</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FontMap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-116"></a><span class='hs-definition'>cairoFontMapSetResolution</span> <span class='hs-layout'>(</span><span class='hs-conid'>FontMap</span> <span class='hs-varid'>fm</span><span class='hs-layout'>)</span> <span class='hs-varid'>dpi</span> <span class='hs-keyglyph'>=</span>
<a name="line-117"></a> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fm</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>fmPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-118"></a> <span class='hs-varid'>pango_cairo_font_map_set_resolution</span>
<a name="line-119"></a><span class='hs-comment'>{-# LINE 114 "./Graphics/Rendering/Pango/Cairo.chs" #-}</span>
<a name="line-120"></a> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>fmPtr</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>dpi</span><span class='hs-layout'>)</span>
<a name="line-121"></a>
<a name="line-122"></a><a name="cairoFontMapGetResolution"></a><span class='hs-comment'>-- | Ask for the scaling factor between font size and Cairo units.</span>
<a name="line-123"></a><span class='hs-comment'>--</span>
<a name="line-124"></a><span class='hs-comment'>-- * Value is in dots per inch (dpi). See 'cairoFontMapGetDefault'.</span>
<a name="line-125"></a><span class='hs-comment'>--</span>
<a name="line-126"></a><span class='hs-definition'>cairoFontMapGetResolution</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FontMap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Double</span>
<a name="line-127"></a><span class='hs-definition'>cairoFontMapGetResolution</span> <span class='hs-layout'>(</span><span class='hs-conid'>FontMap</span> <span class='hs-varid'>fm</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-varid'>realToFrac</span> <span class='hs-varop'>$</span>
<a name="line-128"></a> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fm</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>fmPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-129"></a> <span class='hs-varid'>pango_cairo_font_map_get_resolution</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>fmPtr</span><span class='hs-layout'>)</span>
<a name="line-130"></a>
<a name="line-131"></a><a name="cairoCreateContext"></a><span class='hs-comment'>-- | Create a 'PangoContext'.</span>
<a name="line-132"></a><span class='hs-comment'>--</span>
<a name="line-133"></a><span class='hs-comment'>-- * If no 'FontMap' is specified, it uses the default 'FontMap' that</span>
<a name="line-134"></a><span class='hs-comment'>-- has a scaling factor of 96 dpi. See 'cairoFontMapGetDefault'.</span>
<a name="line-135"></a><span class='hs-comment'>--</span>
<a name="line-136"></a><span class='hs-definition'>cairoCreateContext</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>FontMap</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>PangoContext</span>
<a name="line-137"></a><span class='hs-definition'>cairoCreateContext</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>FontMap</span> <span class='hs-varid'>fm</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPangoContext</span> <span class='hs-varop'>$</span>
<a name="line-138"></a> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fm</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>fmPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-comment'>-- PangoCairoFontMap /= PangoFontMap</span>
<a name="line-139"></a> <span class='hs-varid'>pango_cairo_font_map_create_context</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>fmPtr</span><span class='hs-layout'>)</span>
<a name="line-140"></a><span class='hs-definition'>cairoCreateContext</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-141"></a> <span class='hs-varid'>fmPtr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pango_cairo_font_map_get_default</span>
<a name="line-142"></a><span class='hs-comment'>{-# LINE 136 "./Graphics/Rendering/Pango/Cairo.chs" #-}</span>
<a name="line-143"></a> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPangoContext</span> <span class='hs-varop'>$</span>
<a name="line-144"></a> <span class='hs-varid'>pango_cairo_font_map_create_context</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>fmPtr</span><span class='hs-layout'>)</span>
<a name="line-145"></a>
<a name="line-146"></a><a name="cairoContextSetResolution"></a><span class='hs-comment'>-- | Set the scaling factor of the 'PangoContext'.</span>
<a name="line-147"></a><span class='hs-comment'>--</span>
<a name="line-148"></a><span class='hs-comment'>-- * Supplying zero or a negative value will result in the resolution value</span>
<a name="line-149"></a><span class='hs-comment'>-- of the underlying 'FontMap' to be used. See also 'cairoFontMapGetDefault'.</span>
<a name="line-150"></a><span class='hs-comment'>--</span>
<a name="line-151"></a><span class='hs-definition'>cairoContextSetResolution</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-152"></a><span class='hs-definition'>cairoContextSetResolution</span> <span class='hs-varid'>pc</span> <span class='hs-varid'>dpi</span> <span class='hs-keyglyph'>=</span>
<a name="line-153"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_cairo_context_set_resolution</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'>realToFrac</span> <span class='hs-varid'>dpi</span><span class='hs-layout'>)</span>
<a name="line-154"></a>
<a name="line-155"></a><a name="cairoContextGetResolution"></a><span class='hs-comment'>-- | Ask for the scaling factor of the 'PangoContext'.</span>
<a name="line-156"></a><span class='hs-comment'>--</span>
<a name="line-157"></a><span class='hs-comment'>-- * A negative value will be returned if no resolution has been set.</span>
<a name="line-158"></a><span class='hs-comment'>-- See 'cairoContextSetResolution'.</span>
<a name="line-159"></a><span class='hs-comment'>--</span>
<a name="line-160"></a><span class='hs-definition'>cairoContextGetResolution</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'>Double</span>
<a name="line-161"></a><span class='hs-definition'>cairoContextGetResolution</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-varid'>realToFrac</span> <span class='hs-varop'>$</span>
<a name="line-162"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_cairo_context_get_resolution</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span>
<a name="line-163"></a>
<a name="line-164"></a><a name="cairoContextSetFontOptions"></a><span class='hs-comment'>-- | Set Cairo font options.</span>
<a name="line-165"></a><span class='hs-comment'>--</span>
<a name="line-166"></a><span class='hs-comment'>-- * Apply the given font options to the context. Values set through this</span>
<a name="line-167"></a><span class='hs-comment'>-- functions override those that are set by 'updateContext'.</span>
<a name="line-168"></a><span class='hs-comment'>--</span>
<a name="line-169"></a><span class='hs-definition'>cairoContextSetFontOptions</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FontOptions</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-170"></a><span class='hs-definition'>cairoContextSetFontOptions</span> <span class='hs-varid'>pc</span> <span class='hs-varid'>fo</span> <span class='hs-keyglyph'>=</span>
<a name="line-171"></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'>FontOptions</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_cairo_context_set_font_options</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'>fo</span>
<a name="line-172"></a>
<a name="line-173"></a><a name="cairoContextResetFontOptions"></a><span class='hs-comment'>-- | Reset Cairo font options.</span>
<a name="line-174"></a><span class='hs-comment'>--</span>
<a name="line-175"></a><span class='hs-definition'>cairoContextResetFontOptions</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'>()</span>
<a name="line-176"></a><span class='hs-definition'>cairoContextResetFontOptions</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span>
<a name="line-177"></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'>FontOptions</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_cairo_context_set_font_options</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>argPtr2</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span>
<a name="line-178"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Cairo</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span><span class='hs-varop'>.</span><span class='hs-conid'>FontOptions</span> <span class='hs-varid'>nullForeignPtr</span><span class='hs-layout'>)</span>
<a name="line-179"></a>
<a name="line-180"></a><a name="cairoContextGetFontOptions"></a><span class='hs-comment'>-- | Retrieve Cairo font options.</span>
<a name="line-181"></a><span class='hs-comment'>--</span>
<a name="line-182"></a><span class='hs-definition'>cairoContextGetFontOptions</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'>FontOptions</span>
<a name="line-183"></a><span class='hs-definition'>cairoContextGetFontOptions</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-184"></a> <span class='hs-varid'>foPtr</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'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_cairo_context_get_font_options</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span>
<a name="line-185"></a> <span class='hs-conid'>Cairo</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span><span class='hs-varop'>.</span><span class='hs-varid'>mkFontOptions</span> <span class='hs-varid'>foPtr</span>
<a name="line-186"></a>
<a name="line-187"></a><a name="updateContext"></a><span class='hs-comment'>-- | Update a 'PangoContext' with respect to changes in a 'Render'</span>
<a name="line-188"></a><span class='hs-comment'>-- environment.</span>
<a name="line-189"></a><span class='hs-comment'>--</span>
<a name="line-190"></a><span class='hs-comment'>-- * The 'PangoContext' must have been created with</span>
<a name="line-191"></a><span class='hs-comment'>-- 'cairoCreateContext'. Any 'PangoLayout's that have been</span>
<a name="line-192"></a><span class='hs-comment'>-- previously created with this context have to be update using</span>
<a name="line-193"></a><span class='hs-comment'>-- 'Graphics.Rendering.Pango.Layout.layoutContextChanged'.</span>
<a name="line-194"></a><span class='hs-comment'>--</span>
<a name="line-195"></a><span class='hs-definition'>updateContext</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoContext</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Render</span> <span class='hs-conid'>()</span>
<a name="line-196"></a><span class='hs-definition'>updateContext</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Render</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-197"></a> <span class='hs-varid'>cr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ask</span>
<a name="line-198"></a> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Cairo</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoContext</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_cairo_update_context</span> <span class='hs-varid'>arg1</span> <span class='hs-varid'>argPtr2</span><span class='hs-layout'>)</span> <span class='hs-varid'>cr</span> <span class='hs-varid'>pc</span>
<a name="line-199"></a>
<a name="line-200"></a><a name="createLayout"></a><span class='hs-comment'>-- | Create a 'PangoLayout' within a 'Render' context.</span>
<a name="line-201"></a><span class='hs-comment'>--</span>
<a name="line-202"></a><span class='hs-comment'>-- * This is a convenience function that creates a new 'PangoContext'</span>
<a name="line-203"></a><span class='hs-comment'>-- within this 'Render' context and creates a new 'PangoLayout'.</span>
<a name="line-204"></a><span class='hs-comment'>-- If the transformation or target surface of the 'Render' context</span>
<a name="line-205"></a><span class='hs-comment'>-- change, 'updateLayout' has to be called on this layout.</span>
<a name="line-206"></a><span class='hs-comment'>--</span>
<a name="line-207"></a><span class='hs-definition'>createLayout</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Render</span> <span class='hs-conid'>PangoLayout</span>
<a name="line-208"></a><span class='hs-definition'>createLayout</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Render</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-209"></a> <span class='hs-varid'>cr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ask</span>
<a name="line-210"></a> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-211"></a> <span class='hs-varid'>layRaw</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPangoLayoutRaw</span> <span class='hs-varop'>$</span>
<a name="line-212"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Cairo</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pango_cairo_create_layout</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>cr</span>
<a name="line-213"></a> <span class='hs-varid'>textRef</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>newIORef</span> <span class='hs-varid'>undefined</span>
<a name="line-214"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>pl</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoLayout</span> <span class='hs-varid'>textRef</span> <span class='hs-varid'>layRaw</span><span class='hs-layout'>)</span>
<a name="line-215"></a> <span class='hs-varid'>layoutSetText</span> <span class='hs-varid'>pl</span> <span class='hs-varid'>text</span>
<a name="line-216"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>pl</span>
<a name="line-217"></a>
<a name="line-218"></a><a name="updateLayout"></a><span class='hs-comment'>-- | Propagate changed to the 'Render' context to a 'PangoLayout'.</span>
<a name="line-219"></a><span class='hs-comment'>--</span>
<a name="line-220"></a><span class='hs-comment'>-- * This is a convenience function that calls 'updateContext' on the</span>
<a name="line-221"></a><span class='hs-comment'>-- (private) 'PangoContext' of the given layout to propagate changes</span>
<a name="line-222"></a><span class='hs-comment'>-- from the 'Render' context to the 'PangoContext' and then calls</span>
<a name="line-223"></a><span class='hs-comment'>-- 'Graphics.Rendering.Pango.Layout.layoutContextChanged' on the layout.</span>
<a name="line-224"></a><span class='hs-comment'>-- This function is necessary for</span>
<a name="line-225"></a><span class='hs-comment'>-- 'createLayout' since a private 'PangoContext' is created that is</span>
<a name="line-226"></a><span class='hs-comment'>-- not visible to the user.</span>
<a name="line-227"></a><span class='hs-comment'>--</span>
<a name="line-228"></a><span class='hs-definition'>updateLayout</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoLayout</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Render</span> <span class='hs-conid'>()</span>
<a name="line-229"></a><span class='hs-definition'>updateLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoLayout</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>lay</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Render</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-230"></a> <span class='hs-varid'>cr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ask</span>
<a name="line-231"></a> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Cairo</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoLayoutRaw</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_cairo_update_layout</span> <span class='hs-varid'>arg1</span> <span class='hs-varid'>argPtr2</span><span class='hs-layout'>)</span> <span class='hs-varid'>cr</span> <span class='hs-varid'>lay</span>
<a name="line-232"></a>
<a name="line-233"></a><a name="showGlyphString"></a><span class='hs-comment'>-- | Draw a glyph string.</span>
<a name="line-234"></a><span class='hs-comment'>--</span>
<a name="line-235"></a><span class='hs-comment'>-- * The origin of the glyphs (the left edge of the baseline) will be drawn</span>
<a name="line-236"></a><span class='hs-comment'>-- at the current point of the cairo context.</span>
<a name="line-237"></a><span class='hs-comment'>--</span>
<a name="line-238"></a><span class='hs-definition'>showGlyphString</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GlyphItem</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Render</span> <span class='hs-conid'>()</span>
<a name="line-239"></a><span class='hs-definition'>showGlyphString</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphItem</span> <span class='hs-varid'>pi</span> <span class='hs-varid'>gs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Render</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-240"></a> <span class='hs-varid'>cr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ask</span>
<a name="line-241"></a> <span class='hs-varid'>font</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-varid'>pangoItemGetFont</span> <span class='hs-varid'>pi</span>
<a name="line-242"></a> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Cairo</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Font</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphStringRaw</span> <span class='hs-varid'>arg3</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg3</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr3</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_cairo_show_glyph_string</span> <span class='hs-varid'>arg1</span> <span class='hs-varid'>argPtr2</span> <span class='hs-varid'>argPtr3</span><span class='hs-layout'>)</span> <span class='hs-varid'>cr</span> <span class='hs-varid'>font</span> <span class='hs-varid'>gs</span>
<a name="line-243"></a>
<a name="line-244"></a><a name="showLayoutLine"></a><span class='hs-comment'>-- | Draw a 'LayoutLine'.</span>
<a name="line-245"></a><span class='hs-comment'>--</span>
<a name="line-246"></a><span class='hs-comment'>-- * The origin of the glyphs (the left edge of the baseline) will be drawn</span>
<a name="line-247"></a><span class='hs-comment'>-- at the current point of the cairo context.</span>
<a name="line-248"></a><span class='hs-comment'>--</span>
<a name="line-249"></a><span class='hs-definition'>showLayoutLine</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>LayoutLine</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Render</span> <span class='hs-conid'>()</span>
<a name="line-250"></a><span class='hs-definition'>showLayoutLine</span> <span class='hs-layout'>(</span><span class='hs-conid'>LayoutLine</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ll</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Render</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-251"></a> <span class='hs-varid'>cr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ask</span>
<a name="line-252"></a> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Cairo</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>LayoutLineRaw</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_cairo_show_layout_line</span> <span class='hs-varid'>arg1</span> <span class='hs-varid'>argPtr2</span><span class='hs-layout'>)</span> <span class='hs-varid'>cr</span> <span class='hs-varid'>ll</span>
<a name="line-253"></a>
<a name="line-254"></a><a name="showLayout"></a><span class='hs-comment'>-- | Draw a 'PangoLayout'.</span>
<a name="line-255"></a><span class='hs-comment'>--</span>
<a name="line-256"></a><span class='hs-comment'>-- * The top-left corner of the 'PangoLayout' will be drawn at the current</span>
<a name="line-257"></a><span class='hs-comment'>-- point of the cairo context.</span>
<a name="line-258"></a><span class='hs-comment'>--</span>
<a name="line-259"></a><span class='hs-definition'>showLayout</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoLayout</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Render</span> <span class='hs-conid'>()</span>
<a name="line-260"></a><span class='hs-definition'>showLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoLayout</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>lay</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Render</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-261"></a> <span class='hs-varid'>cr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ask</span>
<a name="line-262"></a> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Cairo</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoLayoutRaw</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'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_cairo_show_layout</span> <span class='hs-varid'>arg1</span> <span class='hs-varid'>argPtr2</span><span class='hs-layout'>)</span> <span class='hs-varid'>cr</span> <span class='hs-varid'>lay</span>
<a name="line-263"></a>
<a name="line-264"></a>
<a name="line-265"></a><a name="glyphStringPath"></a><span class='hs-comment'>-- | Add the extent of a glyph string to the current path.</span>
<a name="line-266"></a><span class='hs-comment'>--</span>
<a name="line-267"></a><span class='hs-comment'>-- * The origin of the glyphs (the left edge of the line) will be at the</span>
<a name="line-268"></a><span class='hs-comment'>-- current point of the cairo context.</span>
<a name="line-269"></a><span class='hs-comment'>--</span>
<a name="line-270"></a><span class='hs-definition'>glyphStringPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GlyphItem</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Render</span> <span class='hs-conid'>()</span>
<a name="line-271"></a><span class='hs-definition'>glyphStringPath</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphItem</span> <span class='hs-varid'>pi</span> <span class='hs-varid'>gs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Render</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-272"></a> <span class='hs-varid'>cr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ask</span>
<a name="line-273"></a> <span class='hs-varid'>font</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-varid'>pangoItemGetFont</span> <span class='hs-varid'>pi</span>
<a name="line-274"></a> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Cairo</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Font</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphStringRaw</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'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg3</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr3</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_cairo_glyph_string_path</span> <span class='hs-varid'>arg1</span> <span class='hs-varid'>argPtr2</span> <span class='hs-varid'>argPtr3</span><span class='hs-layout'>)</span> <span class='hs-varid'>cr</span> <span class='hs-varid'>font</span> <span class='hs-varid'>gs</span>
<a name="line-275"></a>
<a name="line-276"></a><a name="layoutLinePath"></a><span class='hs-comment'>-- | Add the extent of a layout line to the current path.</span>
<a name="line-277"></a><span class='hs-comment'>--</span>
<a name="line-278"></a><span class='hs-comment'>-- * The origin of the glyphs (the left edge of the line) will be at the</span>
<a name="line-279"></a><span class='hs-comment'>-- current point of the cairo context.</span>
<a name="line-280"></a><span class='hs-comment'>--</span>
<a name="line-281"></a><span class='hs-definition'>layoutLinePath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>LayoutLine</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Render</span> <span class='hs-conid'>()</span>
<a name="line-282"></a><span class='hs-definition'>layoutLinePath</span> <span class='hs-layout'>(</span><span class='hs-conid'>LayoutLine</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ll</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Render</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-283"></a> <span class='hs-varid'>cr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ask</span>
<a name="line-284"></a> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Cairo</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>LayoutLineRaw</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'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_cairo_layout_line_path</span> <span class='hs-varid'>arg1</span> <span class='hs-varid'>argPtr2</span><span class='hs-layout'>)</span> <span class='hs-varid'>cr</span> <span class='hs-varid'>ll</span>
<a name="line-285"></a>
<a name="line-286"></a><a name="layoutPath"></a><span class='hs-comment'>-- | Add the layout to the current path.</span>
<a name="line-287"></a><span class='hs-comment'>--</span>
<a name="line-288"></a><span class='hs-comment'>-- * Adds the top-left corner of the text to the current path. Afterwards,</span>
<a name="line-289"></a><span class='hs-comment'>-- the path position is at the bottom-right corner of the 'PangoLayout'.</span>
<a name="line-290"></a><span class='hs-comment'>--</span>
<a name="line-291"></a><span class='hs-definition'>layoutPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PangoLayout</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Render</span> <span class='hs-conid'>()</span>
<a name="line-292"></a><span class='hs-definition'>layoutPath</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoLayout</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>lay</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Render</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-293"></a> <span class='hs-varid'>cr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ask</span>
<a name="line-294"></a> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Cairo</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoLayoutRaw</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_cairo_layout_path</span> <span class='hs-varid'>arg1</span> <span class='hs-varid'>argPtr2</span><span class='hs-layout'>)</span> <span class='hs-varid'>cr</span> <span class='hs-varid'>lay</span>
<a name="line-295"></a>
<a name="line-296"></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_cairo_font_map_get_default"</span>
<a name="line-297"></a> <span class='hs-varid'>pango_cairo_font_map_get_default</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'>FontMap</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-298"></a>
<a name="line-299"></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_cairo_font_map_set_resolution"</span>
<a name="line-300"></a> <span class='hs-varid'>pango_cairo_font_map_set_resolution</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'>CDouble</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-301"></a>
<a name="line-302"></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_cairo_font_map_get_resolution"</span>
<a name="line-303"></a> <span class='hs-varid'>pango_cairo_font_map_get_resolution</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'>CDouble</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-304"></a>
<a name="line-305"></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_cairo_font_map_create_context"</span>
<a name="line-306"></a> <span class='hs-varid'>pango_cairo_font_map_create_context</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-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoContext</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-307"></a>
<a name="line-308"></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_cairo_context_set_resolution"</span>
<a name="line-309"></a> <span class='hs-varid'>pango_cairo_context_set_resolution</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'>CDouble</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-310"></a>
<a name="line-311"></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_cairo_context_get_resolution"</span>
<a name="line-312"></a> <span class='hs-varid'>pango_cairo_context_get_resolution</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'>CDouble</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-313"></a>
<a name="line-314"></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_cairo_context_set_font_options"</span>
<a name="line-315"></a> <span class='hs-varid'>pango_cairo_context_set_font_options</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'>FontOptions</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-316"></a>
<a name="line-317"></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_cairo_context_get_font_options"</span>
<a name="line-318"></a> <span class='hs-varid'>pango_cairo_context_get_font_options</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'>FontOptions</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-319"></a>
<a name="line-320"></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_cairo_update_context"</span>
<a name="line-321"></a> <span class='hs-varid'>pango_cairo_update_context</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'>Cairo</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'>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'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-322"></a>
<a name="line-323"></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_cairo_create_layout"</span>
<a name="line-324"></a> <span class='hs-varid'>pango_cairo_create_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'>Cairo</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'>PangoLayoutRaw</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-325"></a>
<a name="line-326"></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_cairo_update_layout"</span>
<a name="line-327"></a> <span class='hs-varid'>pango_cairo_update_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'>Cairo</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'>PangoLayoutRaw</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-328"></a>
<a name="line-329"></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_cairo_show_glyph_string"</span>
<a name="line-330"></a> <span class='hs-varid'>pango_cairo_show_glyph_string</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'>Cairo</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'>Font</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'>GlyphStringRaw</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-331"></a>
<a name="line-332"></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_cairo_show_layout_line"</span>
<a name="line-333"></a> <span class='hs-varid'>pango_cairo_show_layout_line</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'>Cairo</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'>LayoutLineRaw</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-334"></a>
<a name="line-335"></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_cairo_show_layout"</span>
<a name="line-336"></a> <span class='hs-varid'>pango_cairo_show_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'>Cairo</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'>PangoLayoutRaw</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-337"></a>
<a name="line-338"></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_cairo_glyph_string_path"</span>
<a name="line-339"></a> <span class='hs-varid'>pango_cairo_glyph_string_path</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'>Cairo</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'>Font</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'>GlyphStringRaw</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-340"></a>
<a name="line-341"></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_cairo_layout_line_path"</span>
<a name="line-342"></a> <span class='hs-varid'>pango_cairo_layout_line_path</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'>Cairo</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'>LayoutLineRaw</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-343"></a>
<a name="line-344"></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_cairo_layout_path"</span>
<a name="line-345"></a> <span class='hs-varid'>pango_cairo_layout_path</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'>Cairo</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'>PangoLayoutRaw</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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