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<?php |
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/** |
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* Class QREps |
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* |
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* @created 09.05.2022 |
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* @author smiley <[email protected]> |
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* @copyright 2022 smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\QRCode\Output; |
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use function date, implode, is_int, sprintf; |
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/** |
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* Encapsulated Postscript (EPS) output |
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* |
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* @see https://github.com/t0k4rt/phpqrcode/blob/bb29e6eb77e0a2a85bb0eb62725e0adc11ff5a90/qrvect.php#L52-L137 |
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* @see https://web.archive.org/web/20170818010030/http://wwwimages.adobe.com/content/dam/Adobe/en/devnet/postscript/pdfs/5002.EPSF_Spec.pdf |
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* @see https://web.archive.org/web/20210419003859/https://www.adobe.com/content/dam/acom/en/devnet/actionscript/articles/PLRM.pdf |
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*/ |
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class QREps extends QROutputAbstract{ |
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/** |
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* @inheritDoc |
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*/ |
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protected function moduleValueIsValid($value):bool{ |
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return is_int($value) && $value >= 0 && $value <= 0xffffff; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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protected function getModuleValue($value):array{ |
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return [ |
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round((($value & 0xff0000) >> 16) / 255, 5), |
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round((($value & 0x00ff00) >> 8) / 255, 5), |
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round(($value & 0x0000ff) / 255, 5) |
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]; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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protected function getDefaultModuleValue(bool $isDark):array{ |
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return $isDark ? [0.0, 0.0, 0.0] : [1.0, 1.0, 1.0]; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function dump(string $file = null):string{ |
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$file ??= $this->options->cachefile; |
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$saveToFile = $file !== null; |
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$eps = [ |
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// main header |
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'%!PS-Adobe-3.0 EPSF-3.0', |
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'%%Creator: php-qrcode (https://github.com/chillerlan/php-qrcode)', |
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'%%Title: QR Code', |
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sprintf('%%%%CreationDate: %1$s', date('c')), |
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'%%DocumentData: Clean7Bit', |
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'%%LanguageLevel: 3', |
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sprintf('%%%%BoundingBox: 0 -%1$s %1$s 0', $this->length), |
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'%%EndComments', |
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// function definitions |
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'%%BeginProlog', |
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'/F { rectfill } def', |
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'/S { setrgbcolor } def', |
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'%%EndProlog', |
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// rotate into the proper orientation and scale to fit |
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'-90 rotate', |
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sprintf('%1$s %1$s scale', $this->scale), |
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]; |
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// create the path elements |
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$paths = $this->collectModules(fn(int $x, int $y):string => sprintf('%s %s 1 1 F', $x, $y)); |
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foreach($paths as $M_TYPE => $path){ |
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if(empty($path)){ |
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continue; |
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} |
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$eps[] = sprintf('%f %f %f S', ...$this->moduleValues[$M_TYPE]); |
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$eps[] = implode("\n", $path); |
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} |
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// end file |
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$eps[] = '%%EOF'; |
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$data = implode("\n", $eps); |
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if($saveToFile){ |
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$this->saveToFile($data, $file); |
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} |
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return $data; |
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} |
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} |
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chillerlan /
php-qrcode
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