mirror of
https://github.com/sigmasternchen/php-doc-en
synced 2025-03-27 06:18:56 +00:00
f85d380904
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@350828 c90b9560-bf6c-de11-be94-00142212c4b1
207 lines
6.5 KiB
XML
207 lines
6.5 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
|
|
<!-- $Revision$ -->
|
|
<refentry xml:id="function.imagettftext" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
|
|
<refnamediv>
|
|
<refname>imagettftext</refname>
|
|
<refpurpose>Write text to the image using TrueType fonts</refpurpose>
|
|
</refnamediv>
|
|
<refsect1 role="description">
|
|
&reftitle.description;
|
|
<methodsynopsis>
|
|
<type>array</type><methodname>imagettftext</methodname>
|
|
<methodparam><type>resource</type><parameter>image</parameter></methodparam>
|
|
<methodparam><type>float</type><parameter>size</parameter></methodparam>
|
|
<methodparam><type>float</type><parameter>angle</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>x</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>y</parameter></methodparam>
|
|
<methodparam><type>int</type><parameter>color</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>fontfile</parameter></methodparam>
|
|
<methodparam><type>string</type><parameter>text</parameter></methodparam>
|
|
</methodsynopsis>
|
|
<para>
|
|
Writes the given <parameter>text</parameter> into the image using TrueType
|
|
fonts.
|
|
</para>
|
|
<note>
|
|
<para>
|
|
<function>imagefttext</function> is an extended variant of
|
|
<function>imagettftext</function> which additionally supports the
|
|
<parameter>extrainfo</parameter>.
|
|
</para>
|
|
</note>
|
|
</refsect1>
|
|
<refsect1 role="parameters">
|
|
&reftitle.parameters;
|
|
<para>
|
|
<variablelist>
|
|
&gd.image.description;
|
|
<varlistentry>
|
|
<term><parameter>size</parameter></term>
|
|
<listitem>
|
|
<para>&gd.font.size;</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>angle</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The angle in degrees, with 0 degrees being left-to-right reading text.
|
|
Higher values represent a counter-clockwise rotation. For example, a
|
|
value of 90 would result in bottom-to-top reading text.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>x</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The coordinates given by <parameter>x</parameter> and
|
|
<parameter>y</parameter> will define the basepoint of the first
|
|
character (roughly the lower-left corner of the character). This
|
|
is different from the <function>imagestring</function>, where
|
|
<parameter>x</parameter> and <parameter>y</parameter> define the
|
|
upper-left corner of the first character. For example, "top left"
|
|
is 0, 0.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>y</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The y-ordinate. This sets the position of the fonts baseline, not the
|
|
very bottom of the character.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>color</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The color index. Using the negative of a color index has the effect of
|
|
turning off antialiasing. See <function>imagecolorallocate</function>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
&gd.ttf.fontfile;
|
|
<varlistentry>
|
|
<term><parameter>text</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The text string in UTF-8 encoding.
|
|
</para>
|
|
<para>
|
|
May include decimal numeric character references (of the form:
|
|
&#8364;) to access characters in a font beyond position 127.
|
|
The hexadecimal format (like &#xA9;) is supported.
|
|
Strings in UTF-8 encoding can be passed directly.
|
|
</para>
|
|
<para>
|
|
Named entities, such as &copy;, are not supported. Consider using
|
|
<function>html_entity_decode</function>
|
|
to decode these named entities into UTF-8 strings.
|
|
</para>
|
|
<para>
|
|
If a character is used in the string which is not supported by the
|
|
font, a hollow rectangle will replace the character.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 role="returnvalues">
|
|
&reftitle.returnvalues;
|
|
<para>
|
|
Returns an array with 8 elements representing four points making the
|
|
bounding box of the text. The order of the points is lower left, lower
|
|
right, upper right, upper left. The points are relative to the text
|
|
regardless of the angle, so "upper left" means in the top left-hand
|
|
corner when you see the text horizontally.
|
|
Returns &false; on error.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 role="examples">
|
|
&reftitle.examples;
|
|
<para>
|
|
<example>
|
|
<title><function>imagettftext</function> example</title>
|
|
<para>
|
|
This example script will produce a white PNG 400x30 pixels, with
|
|
the words "Testing..." in black (with grey shadow), in the font Arial.
|
|
</para>
|
|
<programlisting role="php">
|
|
<![CDATA[
|
|
<?php
|
|
// Set the content-type
|
|
header('Content-Type: image/png');
|
|
|
|
// Create the image
|
|
$im = imagecreatetruecolor(400, 30);
|
|
|
|
// Create some colors
|
|
$white = imagecolorallocate($im, 255, 255, 255);
|
|
$grey = imagecolorallocate($im, 128, 128, 128);
|
|
$black = imagecolorallocate($im, 0, 0, 0);
|
|
imagefilledrectangle($im, 0, 0, 399, 29, $white);
|
|
|
|
// The text to draw
|
|
$text = 'Testing...';
|
|
// Replace path by your own font path
|
|
$font = 'arial.ttf';
|
|
|
|
// Add some shadow to the text
|
|
imagettftext($im, 20, 0, 11, 21, $grey, $font, $text);
|
|
|
|
// Add the text
|
|
imagettftext($im, 20, 0, 10, 20, $black, $font, $text);
|
|
|
|
// Using imagepng() results in clearer text compared with imagejpeg()
|
|
imagepng($im);
|
|
imagedestroy($im);
|
|
?>
|
|
]]>
|
|
</programlisting>
|
|
&example.outputs.similar;
|
|
<mediaobject>
|
|
<alt>Output of example : imagettftext()</alt>
|
|
<imageobject>
|
|
<imagedata fileref="en/reference/image/figures/imagettftext.png"/>
|
|
</imageobject>
|
|
</mediaobject>
|
|
</example>
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 role="notes">
|
|
&reftitle.notes;
|
|
¬e.freetype;
|
|
</refsect1>
|
|
<refsect1 role="seealso">
|
|
&reftitle.seealso;
|
|
<simplelist>
|
|
<member><function>imagettfbbox</function></member>
|
|
<member><function>imagefttext</function></member>
|
|
</simplelist>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<!-- Keep this comment at the end of the file
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-omittag:t
|
|
sgml-shorttag:t
|
|
sgml-minimize-attributes:nil
|
|
sgml-always-quote-attributes:t
|
|
sgml-indent-step:1
|
|
sgml-indent-data:t
|
|
indent-tabs-mode:nil
|
|
sgml-parent-document:nil
|
|
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
|
|
sgml-exposed-tags:nil
|
|
sgml-local-catalogs:nil
|
|
sgml-local-ecat-files:nil
|
|
End:
|
|
vim600: syn=xml fen fdm=syntax fdl=2 si
|
|
vim: et tw=78 syn=sgml
|
|
vi: ts=1 sw=1
|
|
-->
|