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<a name="line-2"></a><span class='hs-comment'>{-# LINE 2 "./Graphics/Rendering/Pango/Font.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: Font</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'>-- 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'>-- Fonts. The selection of an appropriate font to render text becomes a</span>
<a name="line-28"></a><span class='hs-comment'>-- substantial task in the presence of Unicode where a single font does not</span>
<a name="line-29"></a><span class='hs-comment'>-- cover the whole range of possible characters. Pango provides several</span>
<a name="line-30"></a><span class='hs-comment'>-- concepts to find appropriate fonts and to query information about them:</span>
<a name="line-31"></a><span class='hs-comment'>--</span>
<a name="line-32"></a><span class='hs-comment'>-- * 'FontDescription': Font descriptions provide a way to query and state</span>
<a name="line-33"></a><span class='hs-comment'>-- requirements on</span>
<a name="line-34"></a><span class='hs-comment'>-- fonts. This data structure has several fields describing different</span>
<a name="line-35"></a><span class='hs-comment'>-- characteristics of a font. Each of these fields can be set of left</span>
<a name="line-36"></a><span class='hs-comment'>-- unspecified.</span>
<a name="line-37"></a><span class='hs-comment'>--</span>
<a name="line-38"></a><span class='hs-comment'>-- * 'FontMap' : A font map represents the set of fonts available for a</span>
<a name="line-39"></a><span class='hs-comment'>-- particular rendering system. In particular this map defines the</span>
<a name="line-40"></a><span class='hs-comment'>-- relation between font size and pixel size in terms of the output medium.</span>
<a name="line-41"></a><span class='hs-comment'>--</span>
<a name="line-42"></a><span class='hs-comment'>-- * 'FontFamily' : A font family represents a set of fonts that have</span>
<a name="line-43"></a><span class='hs-comment'>-- related faces, that is, their faces share a common design, but differ</span>
<a name="line-44"></a><span class='hs-comment'>-- in slant, weight, width and other aspects.</span>
<a name="line-45"></a><span class='hs-comment'>--</span>
<a name="line-46"></a><span class='hs-comment'>-- * 'FontFace': A face is a specific font where all characteristics are</span>
<a name="line-47"></a><span class='hs-comment'>-- fixed except for the size.</span>
<a name="line-48"></a><span class='hs-comment'>--</span>
<a name="line-49"></a><span class='hs-comment'>-- * 'Font': A font in the underlying rendering system.</span>
<a name="line-50"></a><span class='hs-comment'>--</span>
<a name="line-51"></a><span class='hs-comment'>-- * 'FontMetrics': Information about the font that will be used to render</span>
<a name="line-52"></a><span class='hs-comment'>-- a specific 'Context' or 'PangoItem'.</span>
<a name="line-53"></a><span class='hs-comment'>--</span>
<a name="line-54"></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'>Font</span> <span class='hs-layout'>(</span>
<a name="line-55"></a> <span class='hs-comment'>-- Functions to manage font descriptions.</span>
<a name="line-56"></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'>Description</span><span class='hs-layout'>,</span>
<a name="line-57"></a> <span class='hs-comment'>-- Font metrics.</span>
<a name="line-58"></a> <span class='hs-conid'>FontMap</span><span class='hs-layout'>,</span>
<a name="line-59"></a> <span class='hs-conid'>FontMapClass</span><span class='hs-layout'>,</span>
<a name="line-60"></a> <span class='hs-varid'>pangoFontMapListFamilies</span><span class='hs-layout'>,</span>
<a name="line-61"></a> <span class='hs-conid'>FontFamily</span><span class='hs-layout'>,</span>
<a name="line-62"></a> <span class='hs-conid'>FontFamilyClass</span><span class='hs-layout'>,</span>
<a name="line-63"></a>
<a name="line-64"></a> <span class='hs-varid'>pangoFontFamilyIsMonospace</span><span class='hs-layout'>,</span>
<a name="line-65"></a>
<a name="line-66"></a> <span class='hs-varid'>pangoFontFamilyListFaces</span><span class='hs-layout'>,</span>
<a name="line-67"></a> <span class='hs-conid'>FontFace</span><span class='hs-layout'>,</span>
<a name="line-68"></a> <span class='hs-conid'>FontFaceClass</span><span class='hs-layout'>,</span>
<a name="line-69"></a>
<a name="line-70"></a> <span class='hs-varid'>pangoFontFaceListSizes</span><span class='hs-layout'>,</span>
<a name="line-71"></a>
<a name="line-72"></a> <span class='hs-varid'>pangoFontFaceDescribe</span><span class='hs-layout'>,</span>
<a name="line-73"></a> <span class='hs-conid'>Font</span><span class='hs-layout'>,</span>
<a name="line-74"></a> <span class='hs-conid'>FontClass</span><span class='hs-layout'>,</span>
<a name="line-75"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-76"></a>
<a name="line-77"></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-78"></a>
<a name="line-79"></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-80"></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'>UTFString</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'>BasicTypes</span>
<a name="line-83"></a><span class='hs-comment'>{-# LINE 82 "./Graphics/Rendering/Pango/Font.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'>Types</span>
<a name="line-85"></a><span class='hs-comment'>{-# LINE 83 "./Graphics/Rendering/Pango/Font.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>
<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'>Pango</span><span class='hs-varop'>.</span><span class='hs-conid'>Description</span>
<a name="line-88"></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-89"></a>
<a name="line-90"></a>
<a name="line-91"></a><span class='hs-comment'>{-# LINE 88 "./Graphics/Rendering/Pango/Font.chs" #-}</span>
<a name="line-92"></a>
<a name="line-93"></a>
<a name="line-94"></a><a name="pangoFontMapListFamilies"></a><span class='hs-comment'>-- | Ask for the different font families that a particular back-end supports.</span>
<a name="line-95"></a><span class='hs-comment'>--</span>
<a name="line-96"></a><span class='hs-comment'>-- * The 'FontMap' can be acquired by calling</span>
<a name="line-97"></a><span class='hs-comment'>-- 'Graphics.Rendering.Pango.Cairo.cairoFontMapGetDefault'.</span>
<a name="line-98"></a><span class='hs-comment'>--</span>
<a name="line-99"></a><span class='hs-definition'>pangoFontMapListFamilies</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-keyglyph'>[</span><span class='hs-conid'>FontFamily</span><span class='hs-keyglyph'>]</span>
<a name="line-100"></a><span class='hs-definition'>pangoFontMapListFamilies</span> <span class='hs-varid'>fm</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>arrPtrPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>sizePtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-101"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>FontMap</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_font_map_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'>fm</span> <span class='hs-varid'>arrPtrPtr</span> <span class='hs-varid'>sizePtr</span>
<a name="line-102"></a> <span class='hs-varid'>arrPtr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>arrPtrPtr</span>
<a name="line-103"></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-104"></a> <span class='hs-varid'>ffsPtr</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>
<a name="line-105"></a> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>arrPtr</span><span class='hs-keyglyph'>::</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-comment'>-- c2hs is wrong here</span>
<a name="line-106"></a> <span class='hs-varid'>g_free</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>arrPtr</span><span class='hs-layout'>)</span>
<a name="line-107"></a> <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-varop'>.</span> <span class='hs-varid'>castPtr</span><span class='hs-layout'>)</span> <span class='hs-varid'>ffsPtr</span>
<a name="line-108"></a>
<a name="line-109"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>FontFamily</span> <span class='hs-keyword'>where</span>
<a name="line-110"></a> <span class='hs-varid'>show</span> <span class='hs-varid'>ff</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafePerformIO</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-111"></a> <span class='hs-varid'>strPtr</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'>FontFamily</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_font_family_get_name</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>ff</span>
<a name="line-112"></a> <span class='hs-varid'>peekUTFString</span> <span class='hs-varid'>strPtr</span>
<a name="line-113"></a>
<a name="line-114"></a>
<a name="line-115"></a><a name="pangoFontFamilyIsMonospace"></a><span class='hs-comment'>-- | Ask if the given family contains monospace fonts.</span>
<a name="line-116"></a><span class='hs-comment'>--</span>
<a name="line-117"></a><span class='hs-comment'>-- * A monospace font is a font designed for text display where the</span>
<a name="line-118"></a><span class='hs-comment'>-- characters form a regular grid. For Western languages this would</span>
<a name="line-119"></a><span class='hs-comment'>-- mean that the advance width of all characters are the same, but</span>
<a name="line-120"></a><span class='hs-comment'>-- this categorization also includes Asian fonts which include</span>
<a name="line-121"></a><span class='hs-comment'>-- double-width characters: characters that occupy two grid cells.</span>
<a name="line-122"></a><span class='hs-comment'>--</span>
<a name="line-123"></a><span class='hs-comment'>-- * The best way to find out the grid-cell size is to query the members</span>
<a name="line-124"></a><span class='hs-comment'>-- of the according 'FontMetrics' structure.</span>
<a name="line-125"></a><span class='hs-comment'>--</span>
<a name="line-126"></a><span class='hs-definition'>pangoFontFamilyIsMonospace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FontFamily</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-127"></a><span class='hs-definition'>pangoFontFamilyIsMonospace</span> <span class='hs-varid'>ff</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafePerformIO</span> <span class='hs-varop'>$</span>
<a name="line-128"></a> <span class='hs-varid'>liftM</span> <span class='hs-varid'>toBool</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>FontFamily</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_font_family_is_monospace</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>ff</span>
<a name="line-129"></a>
<a name="line-130"></a>
<a name="line-131"></a><a name="pangoFontFamilyListFaces"></a><span class='hs-comment'>-- | Ask for the faces contained in a particular family.</span>
<a name="line-132"></a><span class='hs-comment'>--</span>
<a name="line-133"></a><span class='hs-comment'>-- * Asks for all font faces in the given family. The faces in a family</span>
<a name="line-134"></a><span class='hs-comment'>-- share a common design, but differ in slant, weight, width and other</span>
<a name="line-135"></a><span class='hs-comment'>-- aspects. For example, the font family "Sans" contains several fonts</span>
<a name="line-136"></a><span class='hs-comment'>-- such as Helvetica and Arial.</span>
<a name="line-137"></a><span class='hs-comment'>--</span>
<a name="line-138"></a><span class='hs-definition'>pangoFontFamilyListFaces</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FontFamily</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FontFace</span><span class='hs-keyglyph'>]</span>
<a name="line-139"></a><span class='hs-definition'>pangoFontFamilyListFaces</span> <span class='hs-varid'>ff</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>arrPtrPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>sizePtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-140"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>FontFamily</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_font_family_list_faces</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'>ff</span> <span class='hs-varid'>arrPtrPtr</span> <span class='hs-varid'>sizePtr</span>
<a name="line-141"></a> <span class='hs-varid'>arrPtr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>arrPtrPtr</span>
<a name="line-142"></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-143"></a> <span class='hs-varid'>ffsPtr</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>
<a name="line-144"></a> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>arrPtr</span><span class='hs-keyglyph'>::</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>FontFace</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- c2hs is wrong here</span>
<a name="line-145"></a> <span class='hs-varid'>g_free</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>arrPtr</span><span class='hs-layout'>)</span>
<a name="line-146"></a> <span class='hs-varid'>mapM</span> <span class='hs-layout'>(</span><span class='hs-varid'>makeNewGObject</span> <span class='hs-varid'>mkFontFace</span> <span class='hs-varop'>.</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-varid'>castPtr</span><span class='hs-layout'>)</span> <span class='hs-varid'>ffsPtr</span>
<a name="line-147"></a>
<a name="line-148"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>FontFace</span> <span class='hs-keyword'>where</span>
<a name="line-149"></a> <span class='hs-varid'>show</span> <span class='hs-varid'>ff</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafePerformIO</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-150"></a> <span class='hs-varid'>strPtr</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'>FontFace</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'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_font_face_get_face_name</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>ff</span>
<a name="line-151"></a> <span class='hs-varid'>peekUTFString</span> <span class='hs-varid'>strPtr</span>
<a name="line-152"></a>
<a name="line-153"></a>
<a name="line-154"></a><a name="pangoFontFaceListSizes"></a><span class='hs-comment'>-- | Ask for available sizes of this font face.</span>
<a name="line-155"></a><span class='hs-comment'>--</span>
<a name="line-156"></a><span class='hs-comment'>-- * List the available sizes for a font. This is only applicable to bitmap</span>
<a name="line-157"></a><span class='hs-comment'>-- fonts since all other fonts can be scaled arbitrarily. For scalable</span>
<a name="line-158"></a><span class='hs-comment'>-- fonts, this function returns @Nothing@. The sizes returned are in</span>
<a name="line-159"></a><span class='hs-comment'>-- ascending order, their unit is points (1\/72 inch).</span>
<a name="line-160"></a><span class='hs-comment'>--</span>
<a name="line-161"></a><span class='hs-definition'>pangoFontFaceListSizes</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FontFace</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Double</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-162"></a><span class='hs-definition'>pangoFontFaceListSizes</span> <span class='hs-varid'>ff</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>arrPtrPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>sizePtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-163"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>FontFace</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_font_face_list_sizes</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'>ff</span> <span class='hs-varid'>arrPtrPtr</span> <span class='hs-varid'>sizePtr</span>
<a name="line-164"></a> <span class='hs-varid'>arrPtr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>arrPtrPtr</span>
<a name="line-165"></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-166"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>arrPtr</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-conid'>Nothing</span> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-167"></a> <span class='hs-varid'>sizes</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-varid'>arrPtr</span>
<a name="line-168"></a> <span class='hs-varid'>g_free</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>arrPtr</span><span class='hs-layout'>)</span>
<a name="line-169"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>intToPu</span> <span class='hs-varid'>sizes</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-170"></a>
<a name="line-171"></a>
<a name="line-172"></a><a name="pangoFontFaceDescribe"></a><span class='hs-comment'>-- | Ask for a description of this face.</span>
<a name="line-173"></a><span class='hs-comment'>--</span>
<a name="line-174"></a><span class='hs-comment'>-- * Returns the family, style, variant, weight and stretch of a 'FontFace'.</span>
<a name="line-175"></a><span class='hs-comment'>-- The size field of the resulting font description will be unset.</span>
<a name="line-176"></a><span class='hs-comment'>--</span>
<a name="line-177"></a><span class='hs-definition'>pangoFontFaceDescribe</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FontFace</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>FontDescription</span>
<a name="line-178"></a><span class='hs-definition'>pangoFontFaceDescribe</span> <span class='hs-varid'>ff</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-179"></a> <span class='hs-varid'>fdPtr</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'>FontFace</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_font_face_describe</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>ff</span>
<a name="line-180"></a> <span class='hs-varid'>makeNewFontDescription</span> <span class='hs-varid'>fdPtr</span>
<a name="line-181"></a>
<a name="line-182"></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_map_list_families"</span>
<a name="line-183"></a> <span class='hs-varid'>pango_font_map_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'>FontMap</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-184"></a>
<a name="line-185"></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-186"></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-187"></a>
<a name="line-188"></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_family_get_name"</span>
<a name="line-189"></a> <span class='hs-varid'>pango_font_family_get_name</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'>FontFamily</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'>CChar</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-190"></a>
<a name="line-191"></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_family_is_monospace"</span>
<a name="line-192"></a> <span class='hs-varid'>pango_font_family_is_monospace</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'>FontFamily</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-193"></a>
<a name="line-194"></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_family_list_faces"</span>
<a name="line-195"></a> <span class='hs-varid'>pango_font_family_list_faces</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'>FontFamily</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'>FontFace</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-196"></a>
<a name="line-197"></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_face_get_face_name"</span>
<a name="line-198"></a> <span class='hs-varid'>pango_font_face_get_face_name</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'>FontFace</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'>CChar</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-199"></a>
<a name="line-200"></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_face_list_sizes"</span>
<a name="line-201"></a> <span class='hs-varid'>pango_font_face_list_sizes</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'>FontFace</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'>CInt</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-202"></a>
<a name="line-203"></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_face_describe"</span>
<a name="line-204"></a> <span class='hs-varid'>pango_font_face_describe</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'>FontFace</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>
</pre></body>
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