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PHP - Manual: CairoContext::showText

2024-03-29

CairoContext::showText

cairo_show_text

(PECL cairo >= 0.1.0)

CairoContext::showText -- cairo_show_textThe showText purpose

说明

面向对象风格 (method):

public CairoContext::showText ( string $text ) : void

过程化风格:

cairo_show_text ( CairoContext $context , string $text ) : void

Description here.

Warning

本函数还未编写文档,仅有参数列表。

参数

context

Description...

text

Description...

返回值

Description...

范例

Example #1 面向对象风格

<?php
/* ... */
?>

以上例程的输出类似于:

...

Example #2 过程化风格

<?php
/* ... */
?>

以上例程的输出类似于:

...

参见

  • Classname::Method()
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User Contributed Notes 1 note

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Volomike on Twitter
9 years ago
This is an example of the showText() method for drawing text on a surface. Note that selectFontFace() will select fonts that your OS recognizes and I didn't see a way in the current API to select a font by filename.

<?php
$surface
= new CairoImageSurface(CAIRO_FORMAT_ARGB32, 960, 250);
$ctx = new CairoContext($surface);
$ctx->selectFontFace('EuropaGroNr2SH-XBolCon');
$ctx->setFontSize(30);
$ctx->setAntialias(1);
$ctx->moveTo(0, 44);
$ctx->showText('Hello,');
$ctx->moveTo(30, 74);
$ctx->showText('world!');
$sName = tempnam('/tmp','hello');
$surface->writeToPng($sName);
$data = file_get_contents($sName);
unlink($sName);
header('Content-Type: image/png');
echo
$data;

官方地址:https://www.php.net/manual/en/cairocontext.showtext.php

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