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authorsanine <sanine.not@pm.me>2023-02-12 23:53:22 -0600
committersanine <sanine.not@pm.me>2023-02-12 23:53:22 -0600
commitf1fe73d1909a2448a004a88362a1a532d0d4f7c3 (patch)
treeab37ae3837e2f858de2932bcee9f26e69fab3db1 /libs/cairo-1.16.0/doc/public/html/cairo-cairo-scaled-font-t.html
parentf567ea1e2798fd3156a416e61f083ea3e6b95719 (diff)
switch to tinyobj and nanovg from assimp and cairo
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-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<html>
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-<title>cairo_scaled_font_t: Cairo: A Vector Graphics Library</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
- <a href="#cairo-cairo-scaled-font-t.description" class="shortcut">Description</a></span>
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-<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
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-<td><a accesskey="n" href="cairo-cairo-font-options-t.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
-</tr></table>
-<div class="refentry">
-<a name="cairo-cairo-scaled-font-t"></a><div class="titlepage"></div>
-<div class="refnamediv"><table width="100%"><tr>
-<td valign="top">
-<h2><span class="refentrytitle"><a name="cairo-cairo-scaled-font-t.top_of_page"></a>cairo_scaled_font_t</span></h2>
-<p>cairo_scaled_font_t — Font face at particular size and options</p>
-</td>
-<td class="gallery_image" valign="top" align="right"></td>
-</tr></table></div>
-<div class="refsect1">
-<a name="cairo-cairo-scaled-font-t.functions"></a><h2>Functions</h2>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="functions_return">
-<col class="functions_name">
-</colgroup>
-<tbody>
-<tr>
-<td class="function_type">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="returnvalue">cairo_scaled_font_t</span></a> *
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-create" title="cairo_scaled_font_create ()">cairo_scaled_font_create</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="returnvalue">cairo_scaled_font_t</span></a> *
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-reference" title="cairo_scaled_font_reference ()">cairo_scaled_font_reference</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<span class="returnvalue">void</span>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-destroy" title="cairo_scaled_font_destroy ()">cairo_scaled_font_destroy</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-status" title="cairo_scaled_font_status ()">cairo_scaled_font_status</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<span class="returnvalue">void</span>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-extents" title="cairo_scaled_font_extents ()">cairo_scaled_font_extents</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<span class="returnvalue">void</span>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-text-extents" title="cairo_scaled_font_text_extents ()">cairo_scaled_font_text_extents</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<span class="returnvalue">void</span>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-glyph-extents" title="cairo_scaled_font_glyph_extents ()">cairo_scaled_font_glyph_extents</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-text-to-glyphs" title="cairo_scaled_font_text_to_glyphs ()">cairo_scaled_font_text_to_glyphs</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<a class="link" href="cairo-cairo-font-face-t.html#cairo-font-face-t" title="cairo_font_face_t"><span class="returnvalue">cairo_font_face_t</span></a> *
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-get-font-face" title="cairo_scaled_font_get_font_face ()">cairo_scaled_font_get_font_face</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<span class="returnvalue">void</span>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-get-font-options" title="cairo_scaled_font_get_font_options ()">cairo_scaled_font_get_font_options</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<span class="returnvalue">void</span>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-get-font-matrix" title="cairo_scaled_font_get_font_matrix ()">cairo_scaled_font_get_font_matrix</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<span class="returnvalue">void</span>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-get-ctm" title="cairo_scaled_font_get_ctm ()">cairo_scaled_font_get_ctm</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<span class="returnvalue">void</span>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-get-scale-matrix" title="cairo_scaled_font_get_scale_matrix ()">cairo_scaled_font_get_scale_matrix</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<a class="link" href="cairo-cairo-font-face-t.html#cairo-font-type-t" title="enum cairo_font_type_t"><span class="returnvalue">cairo_font_type_t</span></a>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-get-type" title="cairo_scaled_font_get_type ()">cairo_scaled_font_get_type</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">unsigned <span class="returnvalue">int</span>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-get-reference-count" title="cairo_scaled_font_get_reference_count ()">cairo_scaled_font_get_reference_count</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a>
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-set-user-data" title="cairo_scaled_font_set_user_data ()">cairo_scaled_font_set_user_data</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-<tr>
-<td class="function_type">
-<span class="returnvalue">void</span> *
-</td>
-<td class="function_name">
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-get-user-data" title="cairo_scaled_font_get_user_data ()">cairo_scaled_font_get_user_data</a> <span class="c_punctuation">()</span>
-</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<div class="refsect1">
-<a name="cairo-cairo-scaled-font-t.other"></a><h2>Types and Values</h2>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="name">
-<col class="description">
-</colgroup>
-<tbody>
-<tr>
-<td class="typedef_keyword">typedef</td>
-<td class="function_name"><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t">cairo_scaled_font_t</a></td>
-</tr>
-<tr>
-<td class="datatype_keyword"> </td>
-<td class="function_name"><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-font-extents-t" title="cairo_font_extents_t">cairo_font_extents_t</a></td>
-</tr>
-<tr>
-<td class="datatype_keyword"> </td>
-<td class="function_name"><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-text-extents-t" title="cairo_text_extents_t">cairo_text_extents_t</a></td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<div class="refsect1">
-<a name="cairo-cairo-scaled-font-t.description"></a><h2>Description</h2>
-<p><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> represents a realization of a font face at a particular
-size and transformation and a certain set of font options.</p>
-</div>
-<div class="refsect1">
-<a name="cairo-cairo-scaled-font-t.functions_details"></a><h2>Functions</h2>
-<div class="refsect2">
-<a name="cairo-scaled-font-create"></a><h3>cairo_scaled_font_create ()</h3>
-<pre class="programlisting"><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="returnvalue">cairo_scaled_font_t</span></a> *
-cairo_scaled_font_create (<em class="parameter"><code><a class="link" href="cairo-cairo-font-face-t.html#cairo-font-face-t" title="cairo_font_face_t"><span class="type">cairo_font_face_t</span></a> *font_face</code></em>,
- <em class="parameter"><code>const <a class="link" href="cairo-cairo-matrix-t.html#cairo-matrix-t" title="cairo_matrix_t"><span class="type">cairo_matrix_t</span></a> *font_matrix</code></em>,
- <em class="parameter"><code>const <a class="link" href="cairo-cairo-matrix-t.html#cairo-matrix-t" title="cairo_matrix_t"><span class="type">cairo_matrix_t</span></a> *ctm</code></em>,
- <em class="parameter"><code>const <a class="link" href="cairo-cairo-font-options-t.html#cairo-font-options-t" title="cairo_font_options_t"><span class="type">cairo_font_options_t</span></a> *options</code></em>);</pre>
-<p>Creates a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> object from a font face and matrices that
-describe the size of the font and the environment in which it will
-be used.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-create.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="parameter_name"><p>font_face</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-font-face-t.html#cairo-font-face-t" title="cairo_font_face_t"><span class="type">cairo_font_face_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>font_matrix</p></td>
-<td class="parameter_description"><p>font space to user space transformation matrix for the
-font. In the simplest case of a N point font, this matrix is
-just a scale by N, but it can also be used to shear the font
-or stretch it unequally along the two axes. See
-<a class="link" href="cairo-text.html#cairo-set-font-matrix" title="cairo_set_font_matrix ()"><code class="function">cairo_set_font_matrix()</code></a>.</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>ctm</p></td>
-<td class="parameter_description"><p>user to device transformation matrix with which the font will
-be used.</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>options</p></td>
-<td class="parameter_description"><p>options to use when getting metrics for the font and
-rendering with it.</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<div class="refsect3">
-<a name="cairo-scaled-font-create.returns"></a><h4>Returns</h4>
-<p> a newly created <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a>. Destroy with
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-destroy" title="cairo_scaled_font_destroy ()"><code class="function">cairo_scaled_font_destroy()</code></a></p>
-</div>
-<p class="since">Since: 1.0</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-reference"></a><h3>cairo_scaled_font_reference ()</h3>
-<pre class="programlisting"><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="returnvalue">cairo_scaled_font_t</span></a> *
-cairo_scaled_font_reference (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>);</pre>
-<p>Increases the reference count on <em class="parameter"><code>scaled_font</code></em>
- by one. This prevents
-<em class="parameter"><code>scaled_font</code></em>
- from being destroyed until a matching call to
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-destroy" title="cairo_scaled_font_destroy ()"><code class="function">cairo_scaled_font_destroy()</code></a> is made.</p>
-<p>Use <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-get-reference-count" title="cairo_scaled_font_get_reference_count ()"><code class="function">cairo_scaled_font_get_reference_count()</code></a> to get the number of
-references to a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a>.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-reference.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody><tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a>, (may be <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> in which case
-this function does nothing)</p></td>
-<td class="parameter_annotations"> </td>
-</tr></tbody>
-</table></div>
-</div>
-<div class="refsect3">
-<a name="cairo-scaled-font-reference.returns"></a><h4>Returns</h4>
-<p> the referenced <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p>
-</div>
-<p class="since">Since: 1.0</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-destroy"></a><h3>cairo_scaled_font_destroy ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span>
-cairo_scaled_font_destroy (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>);</pre>
-<p>Decreases the reference count on <em class="parameter"><code>font</code></em>
- by one. If the result
-is zero, then <em class="parameter"><code>font</code></em>
- and all associated resources are freed.
-See <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-reference" title="cairo_scaled_font_reference ()"><code class="function">cairo_scaled_font_reference()</code></a>.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-destroy.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody><tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr></tbody>
-</table></div>
-</div>
-<p class="since">Since: 1.0</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-status"></a><h3>cairo_scaled_font_status ()</h3>
-<pre class="programlisting"><a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a>
-cairo_scaled_font_status (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>);</pre>
-<p>Checks whether an error has previously occurred for this
-scaled_font.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-status.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody><tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr></tbody>
-</table></div>
-</div>
-<div class="refsect3">
-<a name="cairo-scaled-font-status.returns"></a><h4>Returns</h4>
-<p> <a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-SUCCESS:CAPS"><code class="literal">CAIRO_STATUS_SUCCESS</code></a> or another error such as
-<a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-NO-MEMORY:CAPS"><code class="literal">CAIRO_STATUS_NO_MEMORY</code></a>.</p>
-</div>
-<p class="since">Since: 1.0</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-extents"></a><h3>cairo_scaled_font_extents ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span>
-cairo_scaled_font_extents (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>,
- <em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-font-extents-t" title="cairo_font_extents_t"><span class="type">cairo_font_extents_t</span></a> *extents</code></em>);</pre>
-<p>Gets the metrics for a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a>.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-extents.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>extents</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-font-extents-t" title="cairo_font_extents_t"><span class="type">cairo_font_extents_t</span></a> which to store the retrieved extents.</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<p class="since">Since: 1.0</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-text-extents"></a><h3>cairo_scaled_font_text_extents ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span>
-cairo_scaled_font_text_extents (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>,
- <em class="parameter"><code>const <span class="type">char</span> *utf8</code></em>,
- <em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-text-extents-t" title="cairo_text_extents_t"><span class="type">cairo_text_extents_t</span></a> *extents</code></em>);</pre>
-<p>Gets the extents for a string of text. The extents describe a
-user-space rectangle that encloses the "inked" portion of the text
-drawn at the origin (0,0) (as it would be drawn by <a class="link" href="cairo-text.html#cairo-show-text" title="cairo_show_text ()"><code class="function">cairo_show_text()</code></a>
-if the cairo graphics state were set to the same font_face,
-font_matrix, ctm, and font_options as <em class="parameter"><code>scaled_font</code></em>
-). Additionally,
-the x_advance and y_advance values indicate the amount by which the
-current point would be advanced by <a class="link" href="cairo-text.html#cairo-show-text" title="cairo_show_text ()"><code class="function">cairo_show_text()</code></a>.</p>
-<p>Note that whitespace characters do not directly contribute to the
-size of the rectangle (extents.width and extents.height). They do
-contribute indirectly by changing the position of non-whitespace
-characters. In particular, trailing whitespace characters are
-likely to not affect the size of the rectangle, though they will
-affect the x_advance and y_advance values.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-text-extents.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>utf8</p></td>
-<td class="parameter_description"><p>a NUL-terminated string of text, encoded in UTF-8</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>extents</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-text-extents-t" title="cairo_text_extents_t"><span class="type">cairo_text_extents_t</span></a> which to store the retrieved extents.</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<p class="since">Since: 1.2</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-glyph-extents"></a><h3>cairo_scaled_font_glyph_extents ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span>
-cairo_scaled_font_glyph_extents (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>,
- <em class="parameter"><code>const <a class="link" href="cairo-text.html#cairo-glyph-t" title="cairo_glyph_t"><span class="type">cairo_glyph_t</span></a> *glyphs</code></em>,
- <em class="parameter"><code><span class="type">int</span> num_glyphs</code></em>,
- <em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-text-extents-t" title="cairo_text_extents_t"><span class="type">cairo_text_extents_t</span></a> *extents</code></em>);</pre>
-<p>Gets the extents for an array of glyphs. The extents describe a
-user-space rectangle that encloses the "inked" portion of the
-glyphs, (as they would be drawn by <a class="link" href="cairo-text.html#cairo-show-glyphs" title="cairo_show_glyphs ()"><code class="function">cairo_show_glyphs()</code></a> if the cairo
-graphics state were set to the same font_face, font_matrix, ctm,
-and font_options as <em class="parameter"><code>scaled_font</code></em>
-). Additionally, the x_advance and
-y_advance values indicate the amount by which the current point
-would be advanced by <a class="link" href="cairo-text.html#cairo-show-glyphs" title="cairo_show_glyphs ()"><code class="function">cairo_show_glyphs()</code></a>.</p>
-<p>Note that whitespace glyphs do not contribute to the size of the
-rectangle (extents.width and extents.height).</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-glyph-extents.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>glyphs</p></td>
-<td class="parameter_description"><p>an array of glyph IDs with X and Y offsets.</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>num_glyphs</p></td>
-<td class="parameter_description"><p>the number of glyphs in the <em class="parameter"><code>glyphs</code></em>
-array</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>extents</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-text-extents-t" title="cairo_text_extents_t"><span class="type">cairo_text_extents_t</span></a> which to store the retrieved extents.</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<p class="since">Since: 1.0</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-text-to-glyphs"></a><h3>cairo_scaled_font_text_to_glyphs ()</h3>
-<pre class="programlisting"><a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a>
-cairo_scaled_font_text_to_glyphs (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>,
- <em class="parameter"><code><span class="type">double</span> x</code></em>,
- <em class="parameter"><code><span class="type">double</span> y</code></em>,
- <em class="parameter"><code>const <span class="type">char</span> *utf8</code></em>,
- <em class="parameter"><code><span class="type">int</span> utf8_len</code></em>,
- <em class="parameter"><code><a class="link" href="cairo-text.html#cairo-glyph-t" title="cairo_glyph_t"><span class="type">cairo_glyph_t</span></a> **glyphs</code></em>,
- <em class="parameter"><code><span class="type">int</span> *num_glyphs</code></em>,
- <em class="parameter"><code><a class="link" href="cairo-text.html#cairo-text-cluster-t" title="cairo_text_cluster_t"><span class="type">cairo_text_cluster_t</span></a> **clusters</code></em>,
- <em class="parameter"><code><span class="type">int</span> *num_clusters</code></em>,
- <em class="parameter"><code><a class="link" href="cairo-text.html#cairo-text-cluster-flags-t" title="enum cairo_text_cluster_flags_t"><span class="type">cairo_text_cluster_flags_t</span></a> *cluster_flags</code></em>);</pre>
-<p>Converts UTF-8 text to an array of glyphs, optionally with cluster
-mapping, that can be used to render later using <em class="parameter"><code>scaled_font</code></em>
-.</p>
-<p>If <em class="parameter"><code>glyphs</code></em>
- initially points to a non-<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> value, that array is used
-as a glyph buffer, and <em class="parameter"><code>num_glyphs</code></em>
- should point to the number of glyph
-entries available there. If the provided glyph array is too short for
-the conversion, a new glyph array is allocated using <a class="link" href="cairo-text.html#cairo-glyph-allocate" title="cairo_glyph_allocate ()"><code class="function">cairo_glyph_allocate()</code></a>
-and placed in <em class="parameter"><code>glyphs</code></em>
-. Upon return, <em class="parameter"><code>num_glyphs</code></em>
- always contains the
-number of generated glyphs. If the value <em class="parameter"><code>glyphs</code></em>
- points to has changed
-after the call, the user is responsible for freeing the allocated glyph
-array using <a class="link" href="cairo-text.html#cairo-glyph-free" title="cairo_glyph_free ()"><code class="function">cairo_glyph_free()</code></a>. This may happen even if the provided
-array was large enough.</p>
-<p>If <em class="parameter"><code>clusters</code></em>
- is not <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, <em class="parameter"><code>num_clusters</code></em>
- and <em class="parameter"><code>cluster_flags</code></em>
- should not be <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>,
-and cluster mapping will be computed.
-The semantics of how cluster array allocation works is similar to the glyph
-array. That is,
-if <em class="parameter"><code>clusters</code></em>
- initially points to a non-<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> value, that array is used
-as a cluster buffer, and <em class="parameter"><code>num_clusters</code></em>
- should point to the number of cluster
-entries available there. If the provided cluster array is too short for
-the conversion, a new cluster array is allocated using <a class="link" href="cairo-text.html#cairo-text-cluster-allocate" title="cairo_text_cluster_allocate ()"><code class="function">cairo_text_cluster_allocate()</code></a>
-and placed in <em class="parameter"><code>clusters</code></em>
-. Upon return, <em class="parameter"><code>num_clusters</code></em>
- always contains the
-number of generated clusters. If the value <em class="parameter"><code>clusters</code></em>
- points at has changed
-after the call, the user is responsible for freeing the allocated cluster
-array using <a class="link" href="cairo-text.html#cairo-text-cluster-free" title="cairo_text_cluster_free ()"><code class="function">cairo_text_cluster_free()</code></a>. This may happen even if the provided
-array was large enough.</p>
-<p>In the simplest case, <em class="parameter"><code>glyphs</code></em>
- and <em class="parameter"><code>clusters</code></em>
- can point to <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> initially
-and a suitable array will be allocated. In code:</p>
-<div class="informalexample">
- <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
- <tbody>
- <tr>
- <td class="listing_lines" align="right"><pre>1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23</pre></td>
- <td class="listing_code"><pre class="programlisting">cairo_status_t status<span class="gtkdoc opt">;</span>
-
-cairo_glyph_t <span class="gtkdoc opt">*</span>glyphs <span class="gtkdoc opt">=</span> NULL<span class="gtkdoc opt">;</span>
-<span class="gtkdoc kwb">int</span> num_glyphs<span class="gtkdoc opt">;</span>
-cairo_text_cluster_t <span class="gtkdoc opt">*</span>clusters <span class="gtkdoc opt">=</span> NULL<span class="gtkdoc opt">;</span>
-<span class="gtkdoc kwb">int</span> num_clusters<span class="gtkdoc opt">;</span>
-cairo_text_cluster_flags_t cluster_flags<span class="gtkdoc opt">;</span>
-
-status <span class="gtkdoc opt">=</span> <span class="function"><a href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-text-to-glyphs">cairo_scaled_font_text_to_glyphs</a></span> <span class="gtkdoc opt">(</span>scaled_font<span class="gtkdoc opt">,</span>
- x<span class="gtkdoc opt">,</span> y<span class="gtkdoc opt">,</span>
- utf8<span class="gtkdoc opt">,</span> utf8_len<span class="gtkdoc opt">,</span>
- <span class="gtkdoc opt">&amp;</span>glyphs<span class="gtkdoc opt">, &amp;</span>num_glyphs<span class="gtkdoc opt">,</span>
- <span class="gtkdoc opt">&amp;</span>clusters<span class="gtkdoc opt">, &amp;</span>num_clusters<span class="gtkdoc opt">, &amp;</span>cluster_flags<span class="gtkdoc opt">);</span>
-
-<span class="keyword">if</span> <span class="gtkdoc opt">(</span>status <span class="gtkdoc opt">==</span> CAIRO_STATUS_SUCCESS<span class="gtkdoc opt">) {</span>
- <span class="function"><a href="cairo-text.html#cairo-show-text-glyphs">cairo_show_text_glyphs</a></span> <span class="gtkdoc opt">(</span>cr<span class="gtkdoc opt">,</span>
- utf8<span class="gtkdoc opt">,</span> utf8_len<span class="gtkdoc opt">,</span>
- glyphs<span class="gtkdoc opt">,</span> num_glyphs<span class="gtkdoc opt">,</span>
- clusters<span class="gtkdoc opt">,</span> num_clusters<span class="gtkdoc opt">,</span> cluster_flags<span class="gtkdoc opt">);</span>
-
- <span class="function"><a href="cairo-text.html#cairo-glyph-free">cairo_glyph_free</a></span> <span class="gtkdoc opt">(</span>glyphs<span class="gtkdoc opt">);</span>
- <span class="function"><a href="cairo-text.html#cairo-text-cluster-free">cairo_text_cluster_free</a></span> <span class="gtkdoc opt">(</span>clusters<span class="gtkdoc opt">);</span>
-<span class="gtkdoc opt">}</span></pre></td>
- </tr>
- </tbody>
- </table>
-</div>
-
-<p>If no cluster mapping is needed:</p>
-<div class="informalexample">
- <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
- <tbody>
- <tr>
- <td class="listing_lines" align="right"><pre>1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16</pre></td>
- <td class="listing_code"><pre class="programlisting">cairo_status_t status<span class="gtkdoc opt">;</span>
-
-cairo_glyph_t <span class="gtkdoc opt">*</span>glyphs <span class="gtkdoc opt">=</span> NULL<span class="gtkdoc opt">;</span>
-<span class="gtkdoc kwb">int</span> num_glyphs<span class="gtkdoc opt">;</span>
-
-status <span class="gtkdoc opt">=</span> <span class="function"><a href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-text-to-glyphs">cairo_scaled_font_text_to_glyphs</a></span> <span class="gtkdoc opt">(</span>scaled_font<span class="gtkdoc opt">,</span>
- x<span class="gtkdoc opt">,</span> y<span class="gtkdoc opt">,</span>
- utf8<span class="gtkdoc opt">,</span> utf8_len<span class="gtkdoc opt">,</span>
- <span class="gtkdoc opt">&amp;</span>glyphs<span class="gtkdoc opt">, &amp;</span>num_glyphs<span class="gtkdoc opt">,</span>
- NULL<span class="gtkdoc opt">,</span> NULL<span class="gtkdoc opt">,</span>
- NULL<span class="gtkdoc opt">);</span>
-
-<span class="keyword">if</span> <span class="gtkdoc opt">(</span>status <span class="gtkdoc opt">==</span> CAIRO_STATUS_SUCCESS<span class="gtkdoc opt">) {</span>
- <span class="function"><a href="cairo-text.html#cairo-show-glyphs">cairo_show_glyphs</a></span> <span class="gtkdoc opt">(</span>cr<span class="gtkdoc opt">,</span> glyphs<span class="gtkdoc opt">,</span> num_glyphs<span class="gtkdoc opt">);</span>
- <span class="function"><a href="cairo-text.html#cairo-glyph-free">cairo_glyph_free</a></span> <span class="gtkdoc opt">(</span>glyphs<span class="gtkdoc opt">);</span>
-<span class="gtkdoc opt">}</span></pre></td>
- </tr>
- </tbody>
- </table>
-</div>
-
-<p>If stack-based glyph and cluster arrays are to be used for small
-arrays:</p>
-<div class="informalexample">
- <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
- <tbody>
- <tr>
- <td class="listing_lines" align="right"><pre>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</pre></td>
- <td class="listing_code"><pre class="programlisting">cairo_status_t status<span class="gtkdoc opt">;</span>
-
-cairo_glyph_t stack_glyphs<span class="gtkdoc opt">[</span><span class="number">40</span><span class="gtkdoc opt">];</span>
-cairo_glyph_t <span class="gtkdoc opt">*</span>glyphs <span class="gtkdoc opt">=</span> stack_glyphs<span class="gtkdoc opt">;</span>
-<span class="gtkdoc kwb">int</span> num_glyphs <span class="gtkdoc opt">=</span> <span class="keyword">sizeof</span> <span class="gtkdoc opt">(</span>stack_glyphs<span class="gtkdoc opt">) /</span> <span class="keyword">sizeof</span> <span class="gtkdoc opt">(</span>stack_glyphs<span class="gtkdoc opt">[</span><span class="number">0</span><span class="gtkdoc opt">]);</span>
-cairo_text_cluster_t stack_clusters<span class="gtkdoc opt">[</span><span class="number">40</span><span class="gtkdoc opt">];</span>
-cairo_text_cluster_t <span class="gtkdoc opt">*</span>clusters <span class="gtkdoc opt">=</span> stack_clusters<span class="gtkdoc opt">;</span>
-<span class="gtkdoc kwb">int</span> num_clusters <span class="gtkdoc opt">=</span> <span class="keyword">sizeof</span> <span class="gtkdoc opt">(</span>stack_clusters<span class="gtkdoc opt">) /</span> <span class="keyword">sizeof</span> <span class="gtkdoc opt">(</span>stack_clusters<span class="gtkdoc opt">[</span><span class="number">0</span><span class="gtkdoc opt">]);</span>
-cairo_text_cluster_flags_t cluster_flags<span class="gtkdoc opt">;</span>
-
-status <span class="gtkdoc opt">=</span> <span class="function"><a href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-text-to-glyphs">cairo_scaled_font_text_to_glyphs</a></span> <span class="gtkdoc opt">(</span>scaled_font<span class="gtkdoc opt">,</span>
- x<span class="gtkdoc opt">,</span> y<span class="gtkdoc opt">,</span>
- utf8<span class="gtkdoc opt">,</span> utf8_len<span class="gtkdoc opt">,</span>
- <span class="gtkdoc opt">&amp;</span>glyphs<span class="gtkdoc opt">, &amp;</span>num_glyphs<span class="gtkdoc opt">,</span>
- <span class="gtkdoc opt">&amp;</span>clusters<span class="gtkdoc opt">, &amp;</span>num_clusters<span class="gtkdoc opt">, &amp;</span>cluster_flags<span class="gtkdoc opt">);</span>
-
-<span class="keyword">if</span> <span class="gtkdoc opt">(</span>status <span class="gtkdoc opt">==</span> CAIRO_STATUS_SUCCESS<span class="gtkdoc opt">) {</span>
- <span class="function"><a href="cairo-text.html#cairo-show-text-glyphs">cairo_show_text_glyphs</a></span> <span class="gtkdoc opt">(</span>cr<span class="gtkdoc opt">,</span>
- utf8<span class="gtkdoc opt">,</span> utf8_len<span class="gtkdoc opt">,</span>
- glyphs<span class="gtkdoc opt">,</span> num_glyphs<span class="gtkdoc opt">,</span>
- clusters<span class="gtkdoc opt">,</span> num_clusters<span class="gtkdoc opt">,</span> cluster_flags<span class="gtkdoc opt">);</span>
-
- <span class="keyword">if</span> <span class="gtkdoc opt">(</span>glyphs <span class="gtkdoc opt">!=</span> stack_glyphs<span class="gtkdoc opt">)</span>
- <span class="function"><a href="cairo-text.html#cairo-glyph-free">cairo_glyph_free</a></span> <span class="gtkdoc opt">(</span>glyphs<span class="gtkdoc opt">);</span>
- <span class="keyword">if</span> <span class="gtkdoc opt">(</span>clusters <span class="gtkdoc opt">!=</span> stack_clusters<span class="gtkdoc opt">)</span>
- <span class="function"><a href="cairo-text.html#cairo-text-cluster-free">cairo_text_cluster_free</a></span> <span class="gtkdoc opt">(</span>clusters<span class="gtkdoc opt">);</span>
-<span class="gtkdoc opt">}</span></pre></td>
- </tr>
- </tbody>
- </table>
-</div>
-
-<p>For details of how <em class="parameter"><code>clusters</code></em>
-, <em class="parameter"><code>num_clusters</code></em>
-, and <em class="parameter"><code>cluster_flags</code></em>
- map input
-UTF-8 text to the output glyphs see <a class="link" href="cairo-text.html#cairo-show-text-glyphs" title="cairo_show_text_glyphs ()"><code class="function">cairo_show_text_glyphs()</code></a>.</p>
-<p>The output values can be readily passed to <a class="link" href="cairo-text.html#cairo-show-text-glyphs" title="cairo_show_text_glyphs ()"><code class="function">cairo_show_text_glyphs()</code></a>
-<a class="link" href="cairo-text.html#cairo-show-glyphs" title="cairo_show_glyphs ()"><code class="function">cairo_show_glyphs()</code></a>, or related functions, assuming that the exact
-same <em class="parameter"><code>scaled_font</code></em>
- is used for the operation.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-text-to-glyphs.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="parameter_name"><p>x</p></td>
-<td class="parameter_description"><p>X position to place first glyph</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>y</p></td>
-<td class="parameter_description"><p>Y position to place first glyph</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>utf8</p></td>
-<td class="parameter_description"><p>a string of text encoded in UTF-8</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>utf8_len</p></td>
-<td class="parameter_description"><p>length of <em class="parameter"><code>utf8</code></em>
-in bytes, or -1 if it is NUL-terminated</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>glyphs</p></td>
-<td class="parameter_description"><p>pointer to array of glyphs to fill</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>num_glyphs</p></td>
-<td class="parameter_description"><p>pointer to number of glyphs</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>clusters</p></td>
-<td class="parameter_description"><p>pointer to array of cluster mapping information to fill, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>num_clusters</p></td>
-<td class="parameter_description"><p>pointer to number of clusters, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>cluster_flags</p></td>
-<td class="parameter_description"><p>pointer to location to store cluster flags corresponding to the
-output <em class="parameter"><code>clusters</code></em>
-, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<div class="refsect3">
-<a name="cairo-scaled-font-text-to-glyphs.returns"></a><h4>Returns</h4>
-<p> <a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-SUCCESS:CAPS"><code class="literal">CAIRO_STATUS_SUCCESS</code></a> upon success, or an error status
-if the input values are wrong or if conversion failed. If the input
-values are correct but the conversion failed, the error status is also
-set on <em class="parameter"><code>scaled_font</code></em>
-.</p>
-</div>
-<p class="since">Since: 1.8</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-get-font-face"></a><h3>cairo_scaled_font_get_font_face ()</h3>
-<pre class="programlisting"><a class="link" href="cairo-cairo-font-face-t.html#cairo-font-face-t" title="cairo_font_face_t"><span class="returnvalue">cairo_font_face_t</span></a> *
-cairo_scaled_font_get_font_face (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>);</pre>
-<p>Gets the font face that this scaled font uses. This might be the
-font face passed to <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-create" title="cairo_scaled_font_create ()"><code class="function">cairo_scaled_font_create()</code></a>, but this does not
-hold true for all possible cases.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-font-face.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody><tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr></tbody>
-</table></div>
-</div>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-font-face.returns"></a><h4>Returns</h4>
-<p> The <a class="link" href="cairo-cairo-font-face-t.html#cairo-font-face-t" title="cairo_font_face_t"><span class="type">cairo_font_face_t</span></a> with which <em class="parameter"><code>scaled_font</code></em>
-was
-created. This object is owned by cairo. To keep a reference to it,
-you must call <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-reference" title="cairo_scaled_font_reference ()"><code class="function">cairo_scaled_font_reference()</code></a>.</p>
-</div>
-<p class="since">Since: 1.2</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-get-font-options"></a><h3>cairo_scaled_font_get_font_options ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span>
-cairo_scaled_font_get_font_options (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>,
- <em class="parameter"><code><a class="link" href="cairo-cairo-font-options-t.html#cairo-font-options-t" title="cairo_font_options_t"><span class="type">cairo_font_options_t</span></a> *options</code></em>);</pre>
-<p>Stores the font options with which <em class="parameter"><code>scaled_font</code></em>
- was created into
-<em class="parameter"><code>options</code></em>
-.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-font-options.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>options</p></td>
-<td class="parameter_description"><p>return value for the font options</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<p class="since">Since: 1.2</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-get-font-matrix"></a><h3>cairo_scaled_font_get_font_matrix ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span>
-cairo_scaled_font_get_font_matrix (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>,
- <em class="parameter"><code><a class="link" href="cairo-cairo-matrix-t.html#cairo-matrix-t" title="cairo_matrix_t"><span class="type">cairo_matrix_t</span></a> *font_matrix</code></em>);</pre>
-<p>Stores the font matrix with which <em class="parameter"><code>scaled_font</code></em>
- was created into
-<em class="parameter"><code>matrix</code></em>
-.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-font-matrix.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>font_matrix</p></td>
-<td class="parameter_description"><p>return value for the matrix</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<p class="since">Since: 1.2</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-get-ctm"></a><h3>cairo_scaled_font_get_ctm ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span>
-cairo_scaled_font_get_ctm (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>,
- <em class="parameter"><code><a class="link" href="cairo-cairo-matrix-t.html#cairo-matrix-t" title="cairo_matrix_t"><span class="type">cairo_matrix_t</span></a> *ctm</code></em>);</pre>
-<p>Stores the CTM with which <em class="parameter"><code>scaled_font</code></em>
- was created into <em class="parameter"><code>ctm</code></em>
-.
-Note that the translation offsets (x0, y0) of the CTM are ignored
-by <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-create" title="cairo_scaled_font_create ()"><code class="function">cairo_scaled_font_create()</code></a>. So, the matrix this
-function returns always has 0,0 as x0,y0.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-ctm.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>ctm</p></td>
-<td class="parameter_description"><p>return value for the CTM</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<p class="since">Since: 1.2</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-get-scale-matrix"></a><h3>cairo_scaled_font_get_scale_matrix ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span>
-cairo_scaled_font_get_scale_matrix (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>,
- <em class="parameter"><code><a class="link" href="cairo-cairo-matrix-t.html#cairo-matrix-t" title="cairo_matrix_t"><span class="type">cairo_matrix_t</span></a> *scale_matrix</code></em>);</pre>
-<p>Stores the scale matrix of <em class="parameter"><code>scaled_font</code></em>
- into <em class="parameter"><code>matrix</code></em>
-.
-The scale matrix is product of the font matrix and the ctm
-associated with the scaled font, and hence is the matrix mapping from
-font space to device space.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-scale-matrix.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>scale_matrix</p></td>
-<td class="parameter_description"><p>return value for the matrix</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<p class="since">Since: 1.8</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-get-type"></a><h3>cairo_scaled_font_get_type ()</h3>
-<pre class="programlisting"><a class="link" href="cairo-cairo-font-face-t.html#cairo-font-type-t" title="enum cairo_font_type_t"><span class="returnvalue">cairo_font_type_t</span></a>
-cairo_scaled_font_get_type (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>);</pre>
-<p>This function returns the type of the backend used to create
-a scaled font. See <a class="link" href="cairo-cairo-font-face-t.html#cairo-font-type-t" title="enum cairo_font_type_t"><span class="type">cairo_font_type_t</span></a> for available types.
-However, this function never returns <a class="link" href="cairo-cairo-font-face-t.html#CAIRO-FONT-TYPE-TOY:CAPS"><code class="literal">CAIRO_FONT_TYPE_TOY</code></a>.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-type.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody><tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr></tbody>
-</table></div>
-</div>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-type.returns"></a><h4>Returns</h4>
-<p> The type of <em class="parameter"><code>scaled_font</code></em>
-.</p>
-</div>
-<p class="since">Since: 1.2</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-get-reference-count"></a><h3>cairo_scaled_font_get_reference_count ()</h3>
-<pre class="programlisting">unsigned <span class="returnvalue">int</span>
-cairo_scaled_font_get_reference_count (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>);</pre>
-<p>Returns the current reference count of <em class="parameter"><code>scaled_font</code></em>
-.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-reference-count.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody><tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr></tbody>
-</table></div>
-</div>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-reference-count.returns"></a><h4>Returns</h4>
-<p> the current reference count of <em class="parameter"><code>scaled_font</code></em>
-. If the
-object is a nil object, 0 will be returned.</p>
-</div>
-<p class="since">Since: 1.4</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-set-user-data"></a><h3>cairo_scaled_font_set_user_data ()</h3>
-<pre class="programlisting"><a class="link" href="cairo-Error-handling.html#cairo-status-t" title="enum cairo_status_t"><span class="returnvalue">cairo_status_t</span></a>
-cairo_scaled_font_set_user_data (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>,
- <em class="parameter"><code>const <a class="link" href="cairo-Types.html#cairo-user-data-key-t" title="cairo_user_data_key_t"><span class="type">cairo_user_data_key_t</span></a> *key</code></em>,
- <em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
- <em class="parameter"><code><a class="link" href="cairo-Types.html#cairo-destroy-func-t" title="cairo_destroy_func_t ()"><span class="type">cairo_destroy_func_t</span></a> destroy</code></em>);</pre>
-<p>Attach user data to <em class="parameter"><code>scaled_font</code></em>
-. To remove user data from a surface,
-call this function with the key that was used to set it and <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
-for <em class="parameter"><code>data</code></em>
-.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-set-user-data.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>key</p></td>
-<td class="parameter_description"><p>the address of a <a class="link" href="cairo-Types.html#cairo-user-data-key-t" title="cairo_user_data_key_t"><span class="type">cairo_user_data_key_t</span></a> to attach the user data to</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>user_data</p></td>
-<td class="parameter_description"><p>the user data to attach to the <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>destroy</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-Types.html#cairo-destroy-func-t" title="cairo_destroy_func_t ()"><span class="type">cairo_destroy_func_t</span></a> which will be called when the
-<a class="link" href="cairo-cairo-t.html#cairo-t" title="cairo_t"><span class="type">cairo_t</span></a> is destroyed or when new user data is attached using the
-same key.</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<div class="refsect3">
-<a name="cairo-scaled-font-set-user-data.returns"></a><h4>Returns</h4>
-<p> <a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-SUCCESS:CAPS"><code class="literal">CAIRO_STATUS_SUCCESS</code></a> or <a class="link" href="cairo-Error-handling.html#CAIRO-STATUS-NO-MEMORY:CAPS"><code class="literal">CAIRO_STATUS_NO_MEMORY</code></a> if a
-slot could not be allocated for the user data.</p>
-</div>
-<p class="since">Since: 1.4</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-scaled-font-get-user-data"></a><h3>cairo_scaled_font_get_user_data ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> *
-cairo_scaled_font_get_user_data (<em class="parameter"><code><a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> *scaled_font</code></em>,
- <em class="parameter"><code>const <a class="link" href="cairo-Types.html#cairo-user-data-key-t" title="cairo_user_data_key_t"><span class="type">cairo_user_data_key_t</span></a> *key</code></em>);</pre>
-<p>Return user data previously attached to <em class="parameter"><code>scaled_font</code></em>
- using the
-specified key. If no user data has been attached with the given
-key this function returns <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-user-data.parameters"></a><h4>Parameters</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="150px" class="parameters_name">
-<col class="parameters_description">
-<col width="200px" class="parameters_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="parameter_name"><p>scaled_font</p></td>
-<td class="parameter_description"><p>a <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a></p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-<tr>
-<td class="parameter_name"><p>key</p></td>
-<td class="parameter_description"><p>the address of the <a class="link" href="cairo-Types.html#cairo-user-data-key-t" title="cairo_user_data_key_t"><span class="type">cairo_user_data_key_t</span></a> the user data was
-attached to</p></td>
-<td class="parameter_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<div class="refsect3">
-<a name="cairo-scaled-font-get-user-data.returns"></a><h4>Returns</h4>
-<p> the user data previously attached or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p>
-</div>
-<p class="since">Since: 1.4</p>
-</div>
-</div>
-<div class="refsect1">
-<a name="cairo-cairo-scaled-font-t.other_details"></a><h2>Types and Values</h2>
-<div class="refsect2">
-<a name="cairo-scaled-font-t"></a><h3>cairo_scaled_font_t</h3>
-<pre class="programlisting">typedef struct _cairo_scaled_font cairo_scaled_font_t;
-</pre>
-<p>A <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> is a font scaled to a particular size and device
-resolution. A <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> is most useful for low-level font
-usage where a library or application wants to cache a reference
-to a scaled font to speed up the computation of metrics.</p>
-<p>There are various types of scaled fonts, depending on the
-<em class="firstterm">font backend</em> they use. The type of a
-scaled font can be queried using <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-get-type" title="cairo_scaled_font_get_type ()"><code class="function">cairo_scaled_font_get_type()</code></a>.</p>
-<p>Memory management of <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-t" title="cairo_scaled_font_t"><span class="type">cairo_scaled_font_t</span></a> is done with
-<a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-reference" title="cairo_scaled_font_reference ()"><code class="function">cairo_scaled_font_reference()</code></a> and <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-scaled-font-destroy" title="cairo_scaled_font_destroy ()"><code class="function">cairo_scaled_font_destroy()</code></a>.</p>
-<p class="since">Since: 1.0</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-font-extents-t"></a><h3>cairo_font_extents_t</h3>
-<pre class="programlisting">typedef struct {
- double ascent;
- double descent;
- double height;
- double max_x_advance;
- double max_y_advance;
-} cairo_font_extents_t;
-</pre>
-<p>The <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-font-extents-t" title="cairo_font_extents_t"><span class="type">cairo_font_extents_t</span></a> structure stores metric information for
-a font. Values are given in the current user-space coordinate
-system.</p>
-<p>Because font metrics are in user-space coordinates, they are
-mostly, but not entirely, independent of the current transformation
-matrix. If you call <code class="literal">cairo_scale(cr, 2.0, 2.0)</code>,
-text will be drawn twice as big, but the reported text extents will
-not be doubled. They will change slightly due to hinting (so you
-can't assume that metrics are independent of the transformation
-matrix), but otherwise will remain unchanged.</p>
-<div class="refsect3">
-<a name="cairo-font-extents-t.members"></a><h4>Members</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="300px" class="struct_members_name">
-<col class="struct_members_description">
-<col width="200px" class="struct_members_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="struct_member_name"><p><span class="type">double</span> <em class="structfield"><code><a name="cairo-font-extents-t.ascent"></a>ascent</code></em>;</p></td>
-<td class="struct_member_description"><p>the distance that the font extends above the baseline.
-Note that this is not always exactly equal to the maximum
-of the extents of all the glyphs in the font, but rather
-is picked to express the font designer's intent as to
-how the font should align with elements above it.</p></td>
-<td class="struct_member_annotations"> </td>
-</tr>
-<tr>
-<td class="struct_member_name"><p><span class="type">double</span> <em class="structfield"><code><a name="cairo-font-extents-t.descent"></a>descent</code></em>;</p></td>
-<td class="struct_member_description"><p>the distance that the font extends below the baseline.
-This value is positive for typical fonts that include
-portions below the baseline. Note that this is not always
-exactly equal to the maximum of the extents of all the
-glyphs in the font, but rather is picked to express the
-font designer's intent as to how the font should
-align with elements below it.</p></td>
-<td class="struct_member_annotations"> </td>
-</tr>
-<tr>
-<td class="struct_member_name"><p><span class="type">double</span> <em class="structfield"><code><a name="cairo-font-extents-t.height"></a>height</code></em>;</p></td>
-<td class="struct_member_description"><p>the recommended vertical distance between baselines when
-setting consecutive lines of text with the font. This
-is greater than <em class="parameter"><code>ascent</code></em>
-+<em class="parameter"><code>descent</code></em>
-by a
-quantity known as the <em class="firstterm">line spacing</em>
-or <em class="firstterm">external leading</em>. When space
-is at a premium, most fonts can be set with only
-a distance of <em class="parameter"><code>ascent</code></em>
-+<em class="parameter"><code>descent</code></em>
-between lines.</p></td>
-<td class="struct_member_annotations"> </td>
-</tr>
-<tr>
-<td class="struct_member_name"><p><span class="type">double</span> <em class="structfield"><code><a name="cairo-font-extents-t.max-x-advance"></a>max_x_advance</code></em>;</p></td>
-<td class="struct_member_description"><p>the maximum distance in the X direction that
-the origin is advanced for any glyph in the font.</p></td>
-<td class="struct_member_annotations"> </td>
-</tr>
-<tr>
-<td class="struct_member_name"><p><span class="type">double</span> <em class="structfield"><code><a name="cairo-font-extents-t.max-y-advance"></a>max_y_advance</code></em>;</p></td>
-<td class="struct_member_description"><p>the maximum distance in the Y direction that
-the origin is advanced for any glyph in the font.
-This will be zero for normal fonts used for horizontal
-writing. (The scripts of East Asia are sometimes written
-vertically.)</p></td>
-<td class="struct_member_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<p class="since">Since: 1.0</p>
-</div>
-<hr>
-<div class="refsect2">
-<a name="cairo-text-extents-t"></a><h3>cairo_text_extents_t</h3>
-<pre class="programlisting">typedef struct {
- double x_bearing;
- double y_bearing;
- double width;
- double height;
- double x_advance;
- double y_advance;
-} cairo_text_extents_t;
-</pre>
-<p>The <a class="link" href="cairo-cairo-scaled-font-t.html#cairo-text-extents-t" title="cairo_text_extents_t"><span class="type">cairo_text_extents_t</span></a> structure stores the extents of a single
-glyph or a string of glyphs in user-space coordinates. Because text
-extents are in user-space coordinates, they are mostly, but not
-entirely, independent of the current transformation matrix. If you call
-<code class="literal">cairo_scale(cr, 2.0, 2.0)</code>, text will
-be drawn twice as big, but the reported text extents will not be
-doubled. They will change slightly due to hinting (so you can't
-assume that metrics are independent of the transformation matrix),
-but otherwise will remain unchanged.</p>
-<div class="refsect3">
-<a name="cairo-text-extents-t.members"></a><h4>Members</h4>
-<div class="informaltable"><table class="informaltable" width="100%" border="0">
-<colgroup>
-<col width="300px" class="struct_members_name">
-<col class="struct_members_description">
-<col width="200px" class="struct_members_annotations">
-</colgroup>
-<tbody>
-<tr>
-<td class="struct_member_name"><p><span class="type">double</span> <em class="structfield"><code><a name="cairo-text-extents-t.x-bearing"></a>x_bearing</code></em>;</p></td>
-<td class="struct_member_description"><p>the horizontal distance from the origin to the
-leftmost part of the glyphs as drawn. Positive if the
-glyphs lie entirely to the right of the origin.</p></td>
-<td class="struct_member_annotations"> </td>
-</tr>
-<tr>
-<td class="struct_member_name"><p><span class="type">double</span> <em class="structfield"><code><a name="cairo-text-extents-t.y-bearing"></a>y_bearing</code></em>;</p></td>
-<td class="struct_member_description"><p>the vertical distance from the origin to the
-topmost part of the glyphs as drawn. Positive only if the
-glyphs lie completely below the origin; will usually be
-negative.</p></td>
-<td class="struct_member_annotations"> </td>
-</tr>
-<tr>
-<td class="struct_member_name"><p><span class="type">double</span> <em class="structfield"><code><a name="cairo-text-extents-t.width"></a>width</code></em>;</p></td>
-<td class="struct_member_description"><p>width of the glyphs as drawn</p></td>
-<td class="struct_member_annotations"> </td>
-</tr>
-<tr>
-<td class="struct_member_name"><p><span class="type">double</span> <em class="structfield"><code><a name="cairo-text-extents-t.height"></a>height</code></em>;</p></td>
-<td class="struct_member_description"><p>height of the glyphs as drawn</p></td>
-<td class="struct_member_annotations"> </td>
-</tr>
-<tr>
-<td class="struct_member_name"><p><span class="type">double</span> <em class="structfield"><code><a name="cairo-text-extents-t.x-advance"></a>x_advance</code></em>;</p></td>
-<td class="struct_member_description"><p>distance to advance in the X direction
-after drawing these glyphs</p></td>
-<td class="struct_member_annotations"> </td>
-</tr>
-<tr>
-<td class="struct_member_name"><p><span class="type">double</span> <em class="structfield"><code><a name="cairo-text-extents-t.y-advance"></a>y_advance</code></em>;</p></td>
-<td class="struct_member_description"><p>distance to advance in the Y direction
-after drawing these glyphs. Will typically be zero except
-for vertical text layout as found in East-Asian languages.</p></td>
-<td class="struct_member_annotations"> </td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<p class="since">Since: 1.0</p>
-</div>
-</div>
-<div class="refsect1">
-<a name="cairo-cairo-scaled-font-t.see-also"></a><h2>See Also</h2>
-<p><a class="link" href="cairo-cairo-font-face-t.html#cairo-font-face-t" title="cairo_font_face_t"><span class="type">cairo_font_face_t</span></a>, <a class="link" href="cairo-cairo-matrix-t.html#cairo-matrix-t" title="cairo_matrix_t"><span class="type">cairo_matrix_t</span></a>, <a class="link" href="cairo-cairo-font-options-t.html#cairo-font-options-t" title="cairo_font_options_t"><span class="type">cairo_font_options_t</span></a></p>
-</div>
-</div>
-<div class="footer">
-<hr>Generated by GTK-Doc V1.27</div>
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