Файл: vendor/intervention/gif/src/Encoders/PlainTextExtensionEncoder.php
Строк: 72
<?php
declare(strict_types=1);
namespace InterventionGifEncoders;
use InterventionGifBlocksPlainTextExtension;
class PlainTextExtensionEncoder extends AbstractEncoder
{
/**
* Create new instance
*
* @param PlainTextExtension $source
*/
public function __construct(PlainTextExtension $source)
{
$this->source = $source;
}
/**
* Encode current source
*
* @return string
*/
public function encode(): string
{
if (!$this->source->hasText()) {
return '';
}
return implode('', [
PlainTextExtension::MARKER,
PlainTextExtension::LABEL,
$this->encodeHead(),
$this->encodeTexts(),
PlainTextExtension::TERMINATOR,
]);
}
/**
* Encode head block
*
* @return string
*/
protected function encodeHead(): string
{
return "x0cx00x00x00x00x00x00x00x00x00x00x00x00";
}
/**
* Encode text chunks
*
* @return string
*/
protected function encodeTexts(): string
{
return implode('', array_map(
fn(string $text): string => pack('C', strlen($text)) . $text,
$this->source->getText(),
));
}
}