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<?php
/**
* Class QRString
*
* @created 05.12.2015
* @author Smiley <smiley@chillerlan.net>
* @copyright 2015 Smiley
* @license MIT
*
* @noinspection PhpComposerExtensionStubsInspection
*/
namespace chillerlan\QRCode\Output;
use function implode, is_string, json_encode, max, min, sprintf;
use const JSON_THROW_ON_ERROR;
/**
* Converts the matrix data into string types
*
* @deprecated 5.0.0 this class will be removed in future versions, use one of QRStringText or QRStringJSON instead
*/
class QRString extends QROutputAbstract{
/**
* @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 $file = null):string{
switch($this->options->outputType){
case QROutputInterface::STRING_TEXT:
$data = $this->text();
break;
case QROutputInterface::STRING_JSON:
default:
$data = $this->json();
}
$this->saveToFile($data, $file);
return $data;
}
/**
* string output
*/
protected function text():string{
$lines = [];
$linestart = $this->options->textLineStart;
for($y = 0; $y < $this->moduleCount; $y++){
$r = [];
for($x = 0; $x < $this->moduleCount; $x++){
$r[] = $this->getModuleValueAt($x, $y);
}
$lines[] = $linestart.implode('', $r);
}
return implode($this->eol, $lines);
}
/**
* JSON output
*
* @throws \JsonException
*/
protected function json():string{
return json_encode($this->matrix->getMatrix($this->options->jsonAsBooleans), JSON_THROW_ON_ERROR);
}
//
/**
* 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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