pango-opentype-font-handling.html

GTK+-2.0源码之pango-1.15.6.tar.gz

</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2925880"></a><h3>
<a name="PangoOTTableType"></a>enum PangoOTTableType</h3>
<a class="indexterm" name="id2925893"></a><pre class="programlisting">typedef enum
{
  PANGO_OT_TABLE_GSUB,
  PANGO_OT_TABLE_GPOS
} PangoOTTableType;
</pre>
<p>
The <span class="type">PangoOTTableType</span> enumeration values are used to
identify the various OpenType tables in the
<code class="function">pango_ot_info_*</code> functions.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><a name="PANGO-OT-TABLE-GSUB:CAPS"></a><code class="literal">PANGO_OT_TABLE_GSUB</code></span></td>
<td>The GSUB table.
</td>
</tr>
<tr>
<td>
<span class="term"><a name="PANGO-OT-TABLE-GPOS:CAPS"></a><code class="literal">PANGO_OT_TABLE_GPOS</code></span></td>
<td>The GPOS table.

</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2925970"></a><h3>
<a name="PANGO-OT-ALL-GLYPHS:CAPS"></a>PANGO_OT_ALL_GLYPHS</h3>
<a class="indexterm" name="id2925983"></a><pre class="programlisting">#define PANGO_OT_ALL_GLYPHS		((guint)0xFFFF)
</pre>
<p>
This is used as the property bit in <a href="pango-OpenType-Font-Handling.html#pango-ot-ruleset-add-feature"><code class="function">pango_ot_ruleset_add_feature()</code></a> when a
feature should be applied to all glyphs.
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2926012"></a><h3>
<a name="PANGO-OT-DEFAULT-LANGUAGE:CAPS"></a>PANGO_OT_DEFAULT_LANGUAGE</h3>
<a class="indexterm" name="id2926026"></a><pre class="programlisting">#define PANGO_OT_DEFAULT_LANGUAGE	((guint)0xFFFF)
</pre>
<p>
This is used as the language index in <a href="pango-OpenType-Font-Handling.html#pango-ot-info-find-feature"><code class="function">pango_ot_info_find_feature()</code></a> when a
the default language system of the script is desired.
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2926054"></a><h3>
<a name="pango-ot-info-get"></a>pango_ot_info_get ()</h3>
<a class="indexterm" name="id2926069"></a><pre class="programlisting"><a href="pango-OpenType-Font-Handling.html#PangoOTInfo">PangoOTInfo</a>* pango_ot_info_get              (FT_Face face);</pre>
<p>
Returns the <a href="pango-OpenType-Font-Handling.html#PangoOTInfo"><span class="type">PangoOTInfo</span></a> structure for the given FreeType font.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>face</code></em>&#160;:</span></td>
<td> a <span class="type">FT_Face</span>.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> the <a href="pango-OpenType-Font-Handling.html#PangoOTInfo"><span class="type">PangoOTInfo</span></a> for <em class="parameter"><code>face</code></em>. This object will have
the same lifetime as <em class="parameter"><code>face</code></em>.

</td>
</tr>
</tbody>
</table></div>
<p>Since  1.2
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2926165"></a><h3>
<a name="pango-ot-info-find-script"></a>pango_ot_info_find_script ()</h3>
<a class="indexterm" name="id2926179"></a><pre class="programlisting"><a
href="../glib/glib-Basic-Types.html#gboolean"
>gboolean</a>    pango_ot_info_find_script       (<a href="pango-OpenType-Font-Handling.html#PangoOTInfo">PangoOTInfo</a> *info,
                                             <a href="pango-OpenType-Font-Handling.html#PangoOTTableType">PangoOTTableType</a> table_type,
                                             <a href="pango-OpenType-Font-Handling.html#PangoOTTag">PangoOTTag</a> script_tag,
                                             <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> *script_index);</pre>
<p>
Finds the index of a script.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>info</code></em>&#160;:</span></td>
<td> a <a href="pango-OpenType-Font-Handling.html#PangoOTInfo"><span class="type">PangoOTInfo</span></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>table_type</code></em>&#160;:</span></td>
<td> the table type to obtain information about.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>script_tag</code></em>&#160;:</span></td>
<td> the tag of the script to find.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>script_index</code></em>&#160;:</span></td>
<td> location to store the index of the script, or <a
href="../glib/glib-Standard-Macros.html#NULL:CAPS"
><code class="literal">NULL</code></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> <a
href="../glib/glib-Standard-Macros.html#TRUE:CAPS"
><code class="literal">TRUE</code></a> if the script was found.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2926334"></a><h3>
<a name="pango-ot-info-find-language"></a>pango_ot_info_find_language ()</h3>
<a class="indexterm" name="id2926348"></a><pre class="programlisting"><a
href="../glib/glib-Basic-Types.html#gboolean"
>gboolean</a>    pango_ot_info_find_language     (<a href="pango-OpenType-Font-Handling.html#PangoOTInfo">PangoOTInfo</a> *info,
                                             <a href="pango-OpenType-Font-Handling.html#PangoOTTableType">PangoOTTableType</a> table_type,
                                             <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> script_index,
                                             <a href="pango-OpenType-Font-Handling.html#PangoOTTag">PangoOTTag</a> language_tag,
                                             <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> *language_index,
                                             <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> *required_feature_index);</pre>
<p>
Finds the index of a language and its required feature index.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>info</code></em>&#160;:</span></td>
<td> a <a href="pango-OpenType-Font-Handling.html#PangoOTInfo"><span class="type">PangoOTInfo</span></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>table_type</code></em>&#160;:</span></td>
<td> the table type to obtain information about.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>script_index</code></em>&#160;:</span></td>
<td> the index of the script whose languages are searched.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>language_tag</code></em>&#160;:</span></td>
<td> the tag of the language to find.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>language_index</code></em>&#160;:</span></td>
<td> location to store the index of the language, or <a
href="../glib/glib-Standard-Macros.html#NULL:CAPS"
><code class="literal">NULL</code></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>required_feature_index</code></em>&#160;:</span></td>
<td> location to store the required feature index of
   the language, or <a
href="../glib/glib-Standard-Macros.html#NULL:CAPS"
><code class="literal">NULL</code></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> <a
href="../glib/glib-Standard-Macros.html#TRUE:CAPS"
><code class="literal">TRUE</code></a> if the language was found.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2926559"></a><h3>
<a name="pango-ot-info-find-feature"></a>pango_ot_info_find_feature ()</h3>
<a class="indexterm" name="id2926573"></a><pre class="programlisting"><a
href="../glib/glib-Basic-Types.html#gboolean"
>gboolean</a>    pango_ot_info_find_feature      (<a href="pango-OpenType-Font-Handling.html#PangoOTInfo">PangoOTInfo</a> *info,
                                             <a href="pango-OpenType-Font-Handling.html#PangoOTTableType">PangoOTTableType</a> table_type,
                                             <a href="pango-OpenType-Font-Handling.html#PangoOTTag">PangoOTTag</a> feature_tag,
                                             <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> script_index,
                                             <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> language_index,
                                             <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> *feature_index);</pre>
<p>
Finds the index of a feature.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td>
<span class="term"><em class="parameter"><code>info</code></em>&#160;:</span></td>
<td> a <a href="pango-OpenType-Font-Handling.html#PangoOTInfo"><span class="type">PangoOTInfo</span></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>table_type</code></em>&#160;:</span></td>
<td> the table type to obtain information about.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>feature_tag</code></em>&#160;:</span></td>
<td> the tag of the feature to find.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>script_index</code></em>&#160;:</span></td>
<td> the index of the script.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>language_index</code></em>&#160;:</span></td>
<td> the index of the language whose features are searched,
    or <a href="pango-OpenType-Font-Handling.html#PANGO-OT-DEFAULT-LANGUAGE:CAPS"><code class="literal">PANGO_OT_DEFAULT_LANGUAGE</code></a> to use the default language of the script.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>feature_index</code></em>&#160;:</span></td>
<td> location to store the index of the feature, or <a
href="../glib/glib-Standard-Macros.html#NULL:CAPS"
><code class="literal">NULL</code></a>.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> <a
href="../glib/glib-Standard-Macros.html#TRUE:CAPS"