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<a name="line-2"></a><span class='hs-comment'>{-# LINE 2 "./Graphics/Rendering/Pango/GlyphStorage.chs" #-}</span>
<a name="line-3"></a><span class='hs-comment'>{-# OPTIONS_HADDOCK hide #-}</span>
<a name="line-4"></a><span class='hs-comment'>-- -*-haskell-*-</span>
<a name="line-5"></a><span class='hs-comment'>-- GIMP Toolkit (GTK) Glyph Storage of Pango</span>
<a name="line-6"></a><span class='hs-comment'>--</span>
<a name="line-7"></a><span class='hs-comment'>-- Author : Axel Simon</span>
<a name="line-8"></a><span class='hs-comment'>--</span>
<a name="line-9"></a><span class='hs-comment'>-- Created: 31 July 2005</span>
<a name="line-10"></a><span class='hs-comment'>--</span>
<a name="line-11"></a><span class='hs-comment'>-- Copyright (C) 2005 Axel Simon</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- This library is free software; you can redistribute it and/or</span>
<a name="line-14"></a><span class='hs-comment'>-- modify it under the terms of the GNU Lesser General Public</span>
<a name="line-15"></a><span class='hs-comment'>-- License as published by the Free Software Foundation; either</span>
<a name="line-16"></a><span class='hs-comment'>-- version 2.1 of the License, or (at your option) any later version.</span>
<a name="line-17"></a><span class='hs-comment'>--</span>
<a name="line-18"></a><span class='hs-comment'>-- This library is distributed in the hope that it will be useful,</span>
<a name="line-19"></a><span class='hs-comment'>-- but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="line-20"></a><span class='hs-comment'>-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="line-21"></a><span class='hs-comment'>-- Lesser General Public License for more details.</span>
<a name="line-22"></a><span class='hs-comment'>--</span>
<a name="line-23"></a><span class='hs-comment'>--</span>
<a name="line-24"></a><span class='hs-comment'>-- #hide</span>
<a name="line-25"></a>
<a name="line-26"></a><span class='hs-comment'>-- |</span>
<a name="line-27"></a><span class='hs-comment'>-- Maintainer : gtk2hs-users@lists.sourceforge.net</span>
<a name="line-28"></a><span class='hs-comment'>-- Stability : provisional</span>
<a name="line-29"></a><span class='hs-comment'>-- Portability : portable (depends on GHC)</span>
<a name="line-30"></a><span class='hs-comment'>--</span>
<a name="line-31"></a><span class='hs-comment'>--</span>
<a name="line-32"></a><span class='hs-comment'>--</span>
<a name="line-33"></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'>GlyphStorage</span> <span class='hs-layout'>(</span>
<a name="line-34"></a> <span class='hs-varid'>glyphItemExtents</span><span class='hs-layout'>,</span>
<a name="line-35"></a> <span class='hs-varid'>glyphItemExtentsRange</span><span class='hs-layout'>,</span>
<a name="line-36"></a> <span class='hs-varid'>glyphItemIndexToX</span><span class='hs-layout'>,</span>
<a name="line-37"></a> <span class='hs-varid'>glyphItemXToIndex</span><span class='hs-layout'>,</span>
<a name="line-38"></a> <span class='hs-varid'>glyphItemGetLogicalWidths</span><span class='hs-layout'>,</span>
<a name="line-39"></a>
<a name="line-40"></a> <span class='hs-varid'>glyphItemSplit</span>
<a name="line-41"></a>
<a name="line-42"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-43"></a>
<a name="line-44"></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-45"></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-46"></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> <span class='hs-layout'>(</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>
<a name="line-47"></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-48"></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-49"></a><span class='hs-comment'>{-# LINE 48 "./Graphics/Rendering/Pango/GlyphStorage.chs" #-}</span>
<a name="line-50"></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-51"></a>
<a name="line-52"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>OldException</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Exception</span><span class='hs-layout'>(</span><span class='hs-conid'>ArrayException</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-53"></a> <span class='hs-conid'>ArrayException</span><span class='hs-layout'>(</span><span class='hs-conid'>IndexOutOfBounds</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-54"></a>
<a name="line-55"></a>
<a name="line-56"></a>
<a name="line-57"></a>
<a name="line-58"></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'>throwIO</span><span class='hs-layout'>)</span>
<a name="line-59"></a>
<a name="line-60"></a>
<a name="line-61"></a><span class='hs-comment'>{-# LINE 59 "./Graphics/Rendering/Pango/GlyphStorage.chs" #-}</span>
<a name="line-62"></a>
<a name="line-63"></a><span class='hs-comment'>--------------------</span>
<a name="line-64"></a><span class='hs-comment'>-- Methods</span>
<a name="line-65"></a>
<a name="line-66"></a><a name="glyphItemExtents"></a><span class='hs-comment'>-- | Ask for bounding rectangles of this glyph sequence.</span>
<a name="line-67"></a><span class='hs-comment'>--</span>
<a name="line-68"></a><span class='hs-comment'>-- * Compute the logical and ink extents of a glyph string. The</span>
<a name="line-69"></a><span class='hs-comment'>-- logical extend is used for positioning, the ink size is the smallest</span>
<a name="line-70"></a><span class='hs-comment'>-- bounding box that includes all character pixels. The ink size can be</span>
<a name="line-71"></a><span class='hs-comment'>-- smaller or larger that the logical layout.</span>
<a name="line-72"></a><span class='hs-comment'>--</span>
<a name="line-73"></a><span class='hs-comment'>--</span>
<a name="line-74"></a><span class='hs-definition'>glyphItemExtents</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GlyphItem</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoRectangle</span><span class='hs-layout'>,</span> <span class='hs-conid'>PangoRectangle</span><span class='hs-layout'>)</span>
<a name="line-75"></a><span class='hs-definition'>glyphItemExtents</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphItem</span> <span class='hs-varid'>pi</span> <span class='hs-varid'>self</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-76"></a> <span class='hs-varid'>font</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pangoItemGetFont</span> <span class='hs-varid'>pi</span>
<a name="line-77"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>logPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>inkPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-78"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>GlyphStringRaw</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-varid'>arg3</span> <span class='hs-varid'>arg4</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_glyph_string_extents</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>argPtr2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span><span class='hs-layout'>)</span> <span class='hs-varid'>self</span> <span class='hs-varid'>font</span>
<a name="line-79"></a> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>logPtr</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>inkPtr</span><span class='hs-layout'>)</span>
<a name="line-80"></a> <span class='hs-varid'>log</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>logPtr</span>
<a name="line-81"></a> <span class='hs-varid'>ink</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>inkPtr</span>
<a name="line-82"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>log</span><span class='hs-layout'>,</span> <span class='hs-varid'>ink</span><span class='hs-layout'>)</span>
<a name="line-83"></a>
<a name="line-84"></a><a name="glyphItemExtentsRange"></a><span class='hs-comment'>-- | Ask for bounding rectangles for a sub-range of a glyph sequence.</span>
<a name="line-85"></a><span class='hs-comment'>--</span>
<a name="line-86"></a><span class='hs-comment'>-- * The returned rectangles are relative to the given sub-range, that is,</span>
<a name="line-87"></a><span class='hs-comment'>-- the result of this function is the same as if 'glyphItemExtents'</span>
<a name="line-88"></a><span class='hs-comment'>-- were called on the sub-string.</span>
<a name="line-89"></a><span class='hs-comment'>--</span>
<a name="line-90"></a><span class='hs-definition'>glyphItemExtentsRange</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GlyphItem</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span>
<a name="line-91"></a> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoRectangle</span><span class='hs-layout'>,</span> <span class='hs-conid'>PangoRectangle</span><span class='hs-layout'>)</span>
<a name="line-92"></a>
<a name="line-93"></a><span class='hs-definition'>glyphItemExtentsRange</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphItem</span> <span class='hs-varid'>pi</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>PangoItem</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoString</span> <span class='hs-varid'>uc</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>self</span><span class='hs-layout'>)</span>
<a name="line-94"></a> <span class='hs-varid'>start</span> <span class='hs-varid'>end</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-95"></a> <span class='hs-varid'>font</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pangoItemGetFont</span> <span class='hs-varid'>pi</span>
<a name="line-96"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>logPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>inkPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-97"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>GlyphStringRaw</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-layout'>(</span><span class='hs-conid'>Font</span> <span class='hs-varid'>arg4</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg4</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr4</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_glyph_string_extents_range</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>argPtr4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span><span class='hs-layout'>)</span> <span class='hs-varid'>self</span>
<a name="line-98"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>ofsToUTF</span> <span class='hs-varid'>start</span> <span class='hs-varid'>uc</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>ofsToUTF</span> <span class='hs-varid'>end</span> <span class='hs-varid'>uc</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-99"></a> <span class='hs-varid'>font</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>logPtr</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>inkPtr</span><span class='hs-layout'>)</span>
<a name="line-100"></a> <span class='hs-varid'>log</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>logPtr</span>
<a name="line-101"></a> <span class='hs-varid'>ink</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>inkPtr</span>
<a name="line-102"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>log</span><span class='hs-layout'>,</span> <span class='hs-varid'>ink</span><span class='hs-layout'>)</span>
<a name="line-103"></a>
<a name="line-104"></a><a name="glyphItemIndexToX"></a><span class='hs-comment'>-- | Get the horizontal position of a character.</span>
<a name="line-105"></a><span class='hs-comment'>--</span>
<a name="line-106"></a><span class='hs-comment'>-- * Clusters (e.g. \"e\" with an accent modifier) are divided up into equal</span>
<a name="line-107"></a><span class='hs-comment'>-- portions.</span>
<a name="line-108"></a><span class='hs-comment'>--</span>
<a name="line-109"></a><span class='hs-definition'>glyphItemIndexToX</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GlyphItem</span> <span class='hs-comment'>-- ^ the rendered string</span>
<a name="line-110"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ the index into the string</span>
<a name="line-111"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <span class='hs-comment'>-- ^ return the beginning (@False@) or the end</span>
<a name="line-112"></a> <span class='hs-comment'>-- of the character</span>
<a name="line-113"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Double</span>
<a name="line-114"></a><span class='hs-definition'>glyphItemIndexToX</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphItem</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoItem</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>pir</span><span class='hs-layout'>)</span> <span class='hs-varid'>gs</span><span class='hs-layout'>)</span> <span class='hs-varid'>pos</span> <span class='hs-varid'>beg</span> <span class='hs-keyglyph'>=</span>
<a name="line-115"></a> <span class='hs-varid'>withPangoItemRaw</span> <span class='hs-varid'>pir</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>pirPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>intPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-116"></a> <span class='hs-varid'>withPangoString</span> <span class='hs-varid'>ps</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>uc</span> <span class='hs-varid'>l</span> <span class='hs-varid'>strPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-117"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>GlyphStringRaw</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_glyph_string_index_to_x</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span><span class='hs-layout'>)</span> <span class='hs-varid'>gs</span> <span class='hs-varid'>strPtr</span>
<a name="line-118"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>pangoItemRawAnalysis</span> <span class='hs-varid'>pirPtr</span><span class='hs-layout'>)</span>
<a name="line-119"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>ofsToUTF</span> <span class='hs-varid'>pos</span> <span class='hs-varid'>uc</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromBool</span> <span class='hs-varid'>beg</span><span class='hs-layout'>)</span> <span class='hs-varid'>intPtr</span>
<a name="line-120"></a> <span class='hs-varid'>liftM</span> <span class='hs-varid'>intToPu</span> <span class='hs-varop'>$</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>intPtr</span>
<a name="line-121"></a>
<a name="line-122"></a><a name="glyphItemXToIndex"></a><span class='hs-comment'>-- | Get the character at the given horizontal position.</span>
<a name="line-123"></a><span class='hs-comment'>--</span>
<a name="line-124"></a><span class='hs-comment'>-- * The position is clipped to the width of this line.</span>
<a name="line-125"></a><span class='hs-comment'>--</span>
<a name="line-126"></a><span class='hs-comment'>-- * The function returns the position in the string that corresponds</span>
<a name="line-127"></a><span class='hs-comment'>-- to the given horizontal location. Furthermore, if the position lies</span>
<a name="line-128"></a><span class='hs-comment'>-- on the first half of the character, @False@ is returned.</span>
<a name="line-129"></a><span class='hs-comment'>--</span>
<a name="line-130"></a><span class='hs-definition'>glyphItemXToIndex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GlyphItem</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span><span class='hs-layout'>,</span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span>
<a name="line-131"></a><span class='hs-definition'>glyphItemXToIndex</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphItem</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoItem</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>pir</span><span class='hs-layout'>)</span> <span class='hs-varid'>gs</span><span class='hs-layout'>)</span> <span class='hs-varid'>pos</span> <span class='hs-keyglyph'>=</span>
<a name="line-132"></a> <span class='hs-varid'>withPangoItemRaw</span> <span class='hs-varid'>pir</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>pirPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>intPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-133"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>boolPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withPangoString</span> <span class='hs-varid'>ps</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>uc</span> <span class='hs-varid'>l</span> <span class='hs-varid'>strPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-134"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>GlyphStringRaw</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_glyph_string_x_to_index</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span><span class='hs-layout'>)</span> <span class='hs-varid'>gs</span> <span class='hs-varid'>strPtr</span>
<a name="line-135"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>pangoItemRawAnalysis</span> <span class='hs-varid'>pirPtr</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>puToInt</span> <span class='hs-varid'>pos</span><span class='hs-layout'>)</span>
<a name="line-136"></a> <span class='hs-varid'>intPtr</span> <span class='hs-varid'>boolPtr</span>
<a name="line-137"></a> <span class='hs-varid'>int</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>intPtr</span>
<a name="line-138"></a> <span class='hs-varid'>bool</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>boolPtr</span>
<a name="line-139"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>ofsFromUTF</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>int</span><span class='hs-layout'>)</span> <span class='hs-varid'>uc</span><span class='hs-layout'>,</span> <span class='hs-varid'>toBool</span> <span class='hs-varid'>bool</span><span class='hs-layout'>)</span>
<a name="line-140"></a>
<a name="line-141"></a><a name="glyphItemGetLogicalWidths"></a><span class='hs-comment'>-- | Retrieve the width of every character in a string.</span>
<a name="line-142"></a><span class='hs-comment'>--</span>
<a name="line-143"></a><span class='hs-comment'>-- * The boolean parameter</span>
<a name="line-144"></a><span class='hs-comment'>-- determines if the returned array starts with the leftmost glyph</span>
<a name="line-145"></a><span class='hs-comment'>-- (@False@) or with the rightmost glyph (@True@). If @Nothing@ is</span>
<a name="line-146"></a><span class='hs-comment'>-- passed in, the direction is taken from the 'GlyphItem', i.e.,</span>
<a name="line-147"></a><span class='hs-comment'>-- the array starts with the leftmost glyph for left-to-rigth text</span>
<a name="line-148"></a><span class='hs-comment'>-- and with the rightmost glyph for right-to-left text. When multiple</span>
<a name="line-149"></a><span class='hs-comment'>-- characters compose a single glyph, the width of this glyph is</span>
<a name="line-150"></a><span class='hs-comment'>-- divided among the characters that compose this cluster.</span>
<a name="line-151"></a><span class='hs-comment'>--</span>
<a name="line-152"></a><span class='hs-definition'>glyphItemGetLogicalWidths</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GlyphItem</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Double</span><span class='hs-keyglyph'>]</span>
<a name="line-153"></a><span class='hs-definition'>glyphItemGetLogicalWidths</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphItem</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoItem</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>pir</span><span class='hs-layout'>)</span> <span class='hs-varid'>gs</span><span class='hs-layout'>)</span> <span class='hs-varid'>mDir</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-154"></a> <span class='hs-varid'>dir</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>mDir</span> <span class='hs-keyword'>of</span>
<a name="line-155"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>dir</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>dir</span>
<a name="line-156"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withPangoItemRaw</span> <span class='hs-varid'>pir</span> <span class='hs-varid'>pangoItemRawGetLevel</span>
<a name="line-157"></a> <span class='hs-varid'>withPangoString</span> <span class='hs-varid'>ps</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>uc</span> <span class='hs-varid'>l</span> <span class='hs-varid'>strPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-158"></a> <span class='hs-varid'>logLen</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>g_utf8_strlen</span> <span class='hs-varid'>strPtr</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-159"></a> <span class='hs-varid'>allocaArray</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>logLen</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>arrPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-160"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>GlyphStringRaw</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-varid'>arg4</span> <span class='hs-varid'>arg5</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_glyph_string_get_logical_widths</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span><span class='hs-layout'>)</span>
<a name="line-161"></a><span class='hs-comment'>{-# LINE 158 "./Graphics/Rendering/Pango/GlyphStorage.chs" #-}</span>
<a name="line-162"></a> <span class='hs-varid'>gs</span> <span class='hs-varid'>strPtr</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromBool</span> <span class='hs-varid'>dir</span><span class='hs-layout'>)</span> <span class='hs-varid'>arrPtr</span>
<a name="line-163"></a> <span class='hs-varid'>elems</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'>logLen</span><span class='hs-layout'>)</span> <span class='hs-varid'>arrPtr</span>
<a name="line-164"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>intToPu</span> <span class='hs-varid'>elems</span><span class='hs-layout'>)</span>
<a name="line-165"></a>
<a name="line-166"></a>
<a name="line-167"></a><a name="glyphItemSplit"></a><span class='hs-comment'>-- | Split a 'GlyphItem' at the given index.</span>
<a name="line-168"></a><span class='hs-comment'>--</span>
<a name="line-169"></a><span class='hs-comment'>-- * The given 'GlyphItem' is split at the given index. The index must be</span>
<a name="line-170"></a><span class='hs-comment'>-- at least one and not greater or equal to length, i.e. the item must</span>
<a name="line-171"></a><span class='hs-comment'>-- be split into two non-empty segments. The function throws an</span>
<a name="line-172"></a><span class='hs-comment'>-- 'ArrayException' if the index is out of bounds.</span>
<a name="line-173"></a><span class='hs-comment'>--</span>
<a name="line-174"></a><span class='hs-definition'>glyphItemSplit</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GlyphItem</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphItem</span><span class='hs-layout'>,</span> <span class='hs-conid'>GlyphItem</span><span class='hs-layout'>)</span>
<a name="line-175"></a><span class='hs-definition'>glyphItemSplit</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphItem</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoItem</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>pir</span><span class='hs-layout'>)</span> <span class='hs-varid'>gs</span><span class='hs-layout'>)</span> <span class='hs-varid'>pos</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-176"></a> <span class='hs-varid'>pirPtr1</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'>PangoItemRaw</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_item_copy</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pir</span>
<a name="line-177"></a> <span class='hs-varid'>gsrPtr1</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'>GlyphStringRaw</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'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>pango_glyph_string_copy</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>gs</span>
<a name="line-178"></a> <span class='hs-varid'>pir1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>makeNewPangoItemRaw</span> <span class='hs-varid'>pirPtr1</span>
<a name="line-179"></a> <span class='hs-varid'>gsr1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>makeNewGlyphStringRaw</span> <span class='hs-varid'>gsrPtr1</span>
<a name="line-180"></a> <span class='hs-varid'>allocaBytes</span> <span class='hs-num'>8</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>giPtr1</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-181"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>ptr</span> <span class='hs-varid'>val</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span><span class='hs-varid'>pokeByteOff</span> <span class='hs-varid'>ptr</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>val</span><span class='hs-keyglyph'>::</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoItemRaw</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-varid'>giPtr1</span> <span class='hs-varid'>pirPtr1</span>
<a name="line-182"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>ptr</span> <span class='hs-varid'>val</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span><span class='hs-varid'>pokeByteOff</span> <span class='hs-varid'>ptr</span> <span class='hs-num'>4</span> <span class='hs-layout'>(</span><span class='hs-varid'>val</span><span class='hs-keyglyph'>::</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-layout'>)</span><span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-varid'>giPtr1</span> <span class='hs-varid'>gsrPtr1</span>
<a name="line-183"></a> <span class='hs-varid'>giPtr2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>withPangoString</span> <span class='hs-varid'>ps</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>uc</span> <span class='hs-varid'>l</span> <span class='hs-varid'>strPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-184"></a> <span class='hs-varid'>pango_glyph_item_split</span> <span class='hs-varid'>giPtr1</span> <span class='hs-varid'>strPtr</span>
<a name="line-185"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>ofsToUTF</span> <span class='hs-varid'>pos</span> <span class='hs-varid'>uc</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-186"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>giPtr2</span><span class='hs-varop'>==</span><span class='hs-varid'>nullPtr</span> <span class='hs-keyword'>then</span>
<a name="line-187"></a> <span class='hs-varid'>throwIO</span> <span class='hs-layout'>(</span><span class='hs-conid'>ArrayException</span> <span class='hs-layout'>(</span><span class='hs-conid'>IndexOutOfBounds</span>
<a name="line-188"></a> <span class='hs-layout'>(</span><span class='hs-str'>"Graphics.Rendering.Pango.GlyphStorage."</span><span class='hs-varop'>++</span>
<a name="line-189"></a> <span class='hs-str'>"glyphItemSplit: cannot split item at index "</span><span class='hs-varop'>++</span><span class='hs-varid'>show</span> <span class='hs-varid'>pos</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-190"></a> <span class='hs-varid'>pirPtr2</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>ptr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span><span class='hs-varid'>peekByteOff</span> <span class='hs-varid'>ptr</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>::</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>PangoItemRaw</span><span class='hs-layout'>)</span><span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-varid'>giPtr2</span>
<a name="line-191"></a> <span class='hs-varid'>gsrPtr2</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>ptr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span><span class='hs-varid'>peekByteOff</span> <span class='hs-varid'>ptr</span> <span class='hs-num'>4</span> <span class='hs-keyglyph'>::</span><span class='hs-conid'>IO</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-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-varid'>giPtr2</span>
<a name="line-192"></a> <span class='hs-varid'>g_free</span> <span class='hs-varid'>giPtr2</span>
<a name="line-193"></a> <span class='hs-varid'>pir2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>makeNewPangoItemRaw</span> <span class='hs-varid'>pirPtr2</span>
<a name="line-194"></a> <span class='hs-varid'>gsr2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>makeNewGlyphStringRaw</span> <span class='hs-varid'>gsrPtr2</span>
<a name="line-195"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlyphItem</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoItem</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>pir2</span><span class='hs-layout'>)</span> <span class='hs-varid'>gsr2</span><span class='hs-layout'>,</span>
<a name="line-196"></a> <span class='hs-conid'>GlyphItem</span> <span class='hs-layout'>(</span><span class='hs-conid'>PangoItem</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>pir1</span><span class='hs-layout'>)</span> <span class='hs-varid'>gsr1</span><span class='hs-layout'>)</span>
<a name="line-197"></a>
<a name="line-198"></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_glyph_string_extents"</span>
<a name="line-199"></a> <span class='hs-varid'>pango_glyph_string_extents</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-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'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-200"></a>
<a name="line-201"></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_glyph_string_extents_range"</span>
<a name="line-202"></a> <span class='hs-varid'>pango_glyph_string_extents_range</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'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-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'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-203"></a>
<a name="line-204"></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_glyph_string_index_to_x"</span>
<a name="line-205"></a> <span class='hs-varid'>pango_glyph_string_index_to_x</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-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-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'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-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><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-206"></a>
<a name="line-207"></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_glyph_string_x_to_index"</span>
<a name="line-208"></a> <span class='hs-varid'>pango_glyph_string_x_to_index</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-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-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'>CInt</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-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><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-209"></a>
<a name="line-210"></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_utf8_strlen"</span>
<a name="line-211"></a> <span class='hs-varid'>g_utf8_strlen</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'>CChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CLong</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-212"></a>
<a name="line-213"></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_glyph_string_get_logical_widths"</span>
<a name="line-214"></a> <span class='hs-varid'>pango_glyph_string_get_logical_widths</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-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</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><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-215"></a>
<a name="line-216"></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_item_copy"</span>
<a name="line-217"></a> <span class='hs-varid'>pango_item_copy</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'>PangoItemRaw</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'>PangoItemRaw</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-218"></a>
<a name="line-219"></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_glyph_string_copy"</span>
<a name="line-220"></a> <span class='hs-varid'>pango_glyph_string_copy</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-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>GlyphStringRaw</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-221"></a>
<a name="line-222"></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_glyph_item_split"</span>
<a name="line-223"></a> <span class='hs-varid'>pango_glyph_item_split</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-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-224"></a>
<a name="line-225"></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-226"></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>
</pre></body>
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