php-doc-en/reference/cairo/cairocontext/fontextents.xml
2012-01-11 06:50:17 +00:00

154 lines
3.1 KiB
XML

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="cairocontext.fontextents" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>CairoContext::fontExtents</refname>
<refname>cairo_font_extents</refname>
<refpurpose>Get the font extents</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<para>&style.oop; (method):</para>
<methodsynopsis>
<modifier>public</modifier> <type>array</type><methodname>CairoContext::fontExtents</methodname>
<void />
</methodsynopsis>
<para>&style.procedural;:</para>
<methodsynopsis>
<type>array</type><methodname>cairo_font_extents</methodname>
<methodparam><type>CairoContext</type><parameter>context</parameter></methodparam>
</methodsynopsis>
<para>
Gets the font extents for the currently selected font.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>context</parameter></term>
<listitem>
<para>
Description...
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
An array containing the font extents for the current font.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>&style.oop;</title>
<programlisting role="php">
<![CDATA[
<?php
$sur = new CairoImageSurface(CairoFormat::ARGB32, 50, 50);
$con = new CairoContext($sur);
var_dump($con->fontExtents());
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
array(5) {
["ascent"]=>
float(10)
["descent"]=>
float(3)
["height"]=>
float(13.3125)
["max_x_advance"]=>
float(26.65625)
["max_y_advance"]=>
float(0)
}
]]>
</screen>
</example>
</para>
<para>
<example>
<title>&style.procedural;</title>
<programlisting role="php">
<![CDATA[
<?php
$sur = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 50, 50);
$con = cairo_create($sur);
var_dump(cairo_font_extents($con));
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
array(5) {
["ascent"]=>
float(10)
["descent"]=>
float(3)
["height"]=>
float(13.3125)
["max_x_advance"]=>
float(26.65625)
["max_y_advance"]=>
float(0)
}
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><methodname>Classname::Method</methodname></member>
</simplelist>
</para>
</refsect1>
</refentry>
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