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<?php
/**
* Class QRStringText
*
* @created 25.10.2023
* @author smiley <smiley@chillerlan.net>
* @copyright 2023 smiley
* @license MIT
*/
namespace chillerlan\QRCode\Output;
use function array_map, implode, is_string, max, min, sprintf;
/**
*
*/
class QRStringText extends QROutputAbstract{
public const MIME_TYPE = 'text/plain';
/**
* @inheritDoc
*/
public static function moduleValueIsValid($value):bool{
return is_string($value);
}
/**
* @inheritDoc
*/
protected function prepareModuleValue($value):string{
return $value;
}
/**
* @inheritDoc
*/
protected function getDefaultModuleValue(bool $isDark):string{
return ($isDark) ? '██' : '░░';
}
/**
* @inheritDoc
*/
public function dump(?string $file = null):string{
$lines = [];
$linestart = $this->options->textLineStart;
foreach($this->matrix->getMatrix() as $row){
$lines[] = $linestart.implode('', array_map([$this, 'getModuleValue'], $row));
}
$data = implode($this->eol, $lines);
$this->saveToFile($data, $file);
return $data;
}
/**
* a little helper to create a proper ANSI 8-bit color escape sequence
*
* @see https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit
* @see https://en.wikipedia.org/wiki/Block_Elements
*
* @codeCoverageIgnore
*/
public static function ansi8(string $str, int $color, ?bool $background = null):string{
$color = max(0, min($color, 255));
$background = ($background === true) ? 48 : 38;
return sprintf("\x1b[%s;5;%sm%s\x1b[0m", $background, $color, $str);
}
}
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