/usr/share/doc/libpango1.0-doc/pango/PangoFcDecoder.html is in libpango1.0-doc 1.30.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>PangoFcDecoder</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="index.html" title="Pango Reference Manual">
<link rel="up" href="lowlevel.html" title="Low Level Functionality">
<link rel="prev" href="PangoFcFont.html" title="PangoFcFont">
<link rel="next" href="pango-OpenType-Font-Handling.html" title="OpenType Font Handling">
<meta name="generator" content="GTK-Doc V1.18.1 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2">
<tr valign="middle">
<td><a accesskey="p" href="PangoFcFont.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
<td><a accesskey="u" href="lowlevel.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
<th width="100%" align="center">Pango Reference Manual</th>
<td><a accesskey="n" href="pango-OpenType-Font-Handling.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
</tr>
<tr><td colspan="5" class="shortcuts">
<a href="#PangoFcDecoder.synopsis" class="shortcut">Top</a>
|
<a href="#PangoFcDecoder.description" class="shortcut">Description</a>
|
<a href="#PangoFcDecoder.object-hierarchy" class="shortcut">Object Hierarchy</a>
</td></tr>
</table>
<div class="refentry">
<a name="PangoFcDecoder"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="PangoFcDecoder.top_of_page"></a>PangoFcDecoder</span></h2>
<p>PangoFcDecoder — Custom font encoding handling</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="PangoFcDecoder.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">struct <a class="link" href="PangoFcDecoder.html#PangoFcDecoder-struct" title="struct PangoFcDecoder">PangoFcDecoder</a>;
struct <a class="link" href="PangoFcDecoder.html#PangoFcDecoderClass" title="struct PangoFcDecoderClass">PangoFcDecoderClass</a>;
<span class="returnvalue">FcCharSet</span> * <a class="link" href="PangoFcDecoder.html#pango-fc-decoder-get-charset" title="pango_fc_decoder_get_charset ()">pango_fc_decoder_get_charset</a> (<em class="parameter"><code><a class="link" href="PangoFcDecoder.html" title="PangoFcDecoder"><span class="type">PangoFcDecoder</span></a> *decoder</code></em>,
<em class="parameter"><code><a class="link" href="PangoFcFont.html" title="PangoFcFont"><span class="type">PangoFcFont</span></a> *fcfont</code></em>);
<a class="link" href="pango-Glyph-Storage.html#PangoGlyph" title="PangoGlyph"><span class="returnvalue">PangoGlyph</span></a> <a class="link" href="PangoFcDecoder.html#pango-fc-decoder-get-glyph" title="pango_fc_decoder_get_glyph ()">pango_fc_decoder_get_glyph</a> (<em class="parameter"><code><a class="link" href="PangoFcDecoder.html" title="PangoFcDecoder"><span class="type">PangoFcDecoder</span></a> *decoder</code></em>,
<em class="parameter"><code><a class="link" href="PangoFcFont.html" title="PangoFcFont"><span class="type">PangoFcFont</span></a> *fcfont</code></em>,
<em class="parameter"><code><span class="type">guint32</span> wc</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="PangoFcDecoder.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
GObject
+----PangoFcDecoder
</pre>
</div>
<div class="refsect1">
<a name="PangoFcDecoder.description"></a><h2>Description</h2>
<p>
PangoFcDecoder represents a decoder that an application provides
for handling a font that is encoded in a custom way.
</p>
</div>
<div class="refsect1">
<a name="PangoFcDecoder.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="PangoFcDecoder-struct"></a><h3>struct PangoFcDecoder</h3>
<pre class="programlisting">struct PangoFcDecoder;</pre>
<p>
<a class="link" href="PangoFcDecoder.html" title="PangoFcDecoder"><span class="type">PangoFcDecoder</span></a> is a virtual base class that implementations will
inherit from. It's the interface that is used to define a custom
encoding for a font. These objects are created in your code from a
function callback that was originally registered with
<a class="link" href="PangoFcFontMap.html#pango-fc-font-map-add-decoder-find-func" title="pango_fc_font_map_add_decoder_find_func ()"><code class="function">pango_fc_font_map_add_decoder_find_func()</code></a>. Pango requires
information about the supported charset for a font as well as the
individual character to glyph conversions. Pango gets that
information via the <span class="type">get_charset</span> and <span class="type">get_glyph</span> callbacks into your
object implementation.
</p>
<p class="since">Since 1.6</p>
</div>
<hr>
<div class="refsect2">
<a name="PangoFcDecoderClass"></a><h3>struct PangoFcDecoderClass</h3>
<pre class="programlisting">struct PangoFcDecoderClass {
FcCharSet *(*get_charset) (PangoFcDecoder *decoder,
PangoFcFont *fcfont);
PangoGlyph (*get_glyph) (PangoFcDecoder *decoder,
PangoFcFont *fcfont,
guint32 wc);
};
</pre>
<p>
Class structure for <a class="link" href="PangoFcDecoder.html" title="PangoFcDecoder"><span class="type">PangoFcDecoder</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="structfield"><code><a name="PangoFcDecoderClass.get-charset"></a>get_charset</code></em> ()</span></p></td>
<td>This returns an <span class="type">FcCharset</span> given a <a class="link" href="PangoFcFont.html" title="PangoFcFont"><span class="type">PangoFcFont</span></a> that
includes a list of supported characters in the font. The
<span class="type">FcCharSet</span> that is returned should be an internal reference to your
code. Pango will not free this structure. It is important that
you make this callback fast because this callback is called
separately for each character to determine Unicode coverage.</td>
</tr>
<tr>
<td><p><span class="term"><em class="structfield"><code><a name="PangoFcDecoderClass.get-glyph"></a>get_glyph</code></em> ()</span></p></td>
<td>This returns a single <a class="link" href="pango-Glyph-Storage.html#PangoGlyph" title="PangoGlyph"><span class="type">PangoGlyph</span></a> for a given Unicode
code point.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.6</p>
</div>
<hr>
<div class="refsect2">
<a name="pango-fc-decoder-get-charset"></a><h3>pango_fc_decoder_get_charset ()</h3>
<pre class="programlisting"><span class="returnvalue">FcCharSet</span> * pango_fc_decoder_get_charset (<em class="parameter"><code><a class="link" href="PangoFcDecoder.html" title="PangoFcDecoder"><span class="type">PangoFcDecoder</span></a> *decoder</code></em>,
<em class="parameter"><code><a class="link" href="PangoFcFont.html" title="PangoFcFont"><span class="type">PangoFcFont</span></a> *fcfont</code></em>);</pre>
<p>
Generates an <span class="type">FcCharSet</span> of supported characters for the fcfont
given. The returned <span class="type">FcCharSet</span> will be a reference to an
internal value stored by the <a class="link" href="PangoFcDecoder.html" title="PangoFcDecoder"><span class="type">PangoFcDecoder</span></a> and must not
be modified or freed.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>decoder</code></em> :</span></p></td>
<td>a <a class="link" href="PangoFcDecoder.html" title="PangoFcDecoder"><span class="type">PangoFcDecoder</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fcfont</code></em> :</span></p></td>
<td>the <a class="link" href="PangoFcFont.html" title="PangoFcFont"><span class="type">PangoFcFont</span></a> to query.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <span class="type">FcCharset</span> for <em class="parameter"><code>fcfont</code></em>; must not be modified
or freed.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.6</p>
</div>
<hr>
<div class="refsect2">
<a name="pango-fc-decoder-get-glyph"></a><h3>pango_fc_decoder_get_glyph ()</h3>
<pre class="programlisting"><a class="link" href="pango-Glyph-Storage.html#PangoGlyph" title="PangoGlyph"><span class="returnvalue">PangoGlyph</span></a> pango_fc_decoder_get_glyph (<em class="parameter"><code><a class="link" href="PangoFcDecoder.html" title="PangoFcDecoder"><span class="type">PangoFcDecoder</span></a> *decoder</code></em>,
<em class="parameter"><code><a class="link" href="PangoFcFont.html" title="PangoFcFont"><span class="type">PangoFcFont</span></a> *fcfont</code></em>,
<em class="parameter"><code><span class="type">guint32</span> wc</code></em>);</pre>
<p>
Generates a <a class="link" href="pango-Glyph-Storage.html#PangoGlyph" title="PangoGlyph"><span class="type">PangoGlyph</span></a> for the given Unicode point using the
custom decoder. For complex scripts where there can be multiple
glyphs for a single character, the decoder will return whatever
glyph is most convenient for it. (Usually whatever glyph is directly
in the fonts character map table.)
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>decoder</code></em> :</span></p></td>
<td>a <a class="link" href="PangoFcDecoder.html" title="PangoFcDecoder"><span class="type">PangoFcDecoder</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fcfont</code></em> :</span></p></td>
<td>a <a class="link" href="PangoFcFont.html" title="PangoFcFont"><span class="type">PangoFcFont</span></a> to query.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>wc</code></em> :</span></p></td>
<td>the Unicode code point to convert to a single <a class="link" href="pango-Glyph-Storage.html#PangoGlyph" title="PangoGlyph"><span class="type">PangoGlyph</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the glyph index, or 0 if the glyph isn't
covered by the font.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.6</p>
</div>
</div>
</div>
<div class="footer">
<hr>
Generated by GTK-Doc V1.18.1</div>
</body>
</html>
|