mirror of
https://github.com/chillerlan/php-qrcode.git
synced 2026-08-18 22:50:05 +00:00
smiley
104 lines
2.8 KiB
PHP
104 lines
2.8 KiB
PHP
<?php
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/**
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* @created 18.11.2020
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* @author smiley <smiley@chillerlan.net>
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* @copyright 2020 smiley
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* @license MIT
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*
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* @noinspection PhpComposerExtensionStubsInspection
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*/
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use chillerlan\QRCode\{QRCode, QROptions};
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use chillerlan\QRCode\Output\{QRCodeOutputException, QRImage};
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require_once __DIR__.'/../vendor/autoload.php';
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class QRImageWithLogo extends QRImage{
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/**
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* @param string|null $file
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* @param string|null $logo
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*
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* @return string
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* @throws \chillerlan\QRCode\Output\QRCodeOutputException
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*/
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public function dump(?string $file = null, ?string $logo = null):string{
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// set returnResource to true to skip further processing for now
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$this->options->returnResource = true;
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// of course you could accept other formats too (such as resource or Imagick)
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// i'm not checking for the file type either for simplicity reasons (assuming PNG)
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if(!is_file($logo) || !is_readable($logo)){
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throw new QRCodeOutputException('invalid logo');
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}
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$this->matrix->setLogoSpace(
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$this->options->logoSpaceWidth,
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$this->options->logoSpaceHeight
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// not utilizing the position here
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);
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// there's no need to save the result of dump() into $this->image here
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parent::dump($file);
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$im = imagecreatefrompng($logo);
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// get logo image size
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$w = imagesx($im);
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$h = imagesy($im);
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// set new logo size, leave a border of 1 module (no proportional resize/centering)
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$lw = ($this->options->logoSpaceWidth - 2) * $this->options->scale;
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$lh = ($this->options->logoSpaceHeight - 2) * $this->options->scale;
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// get the qrcode size
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$ql = $this->matrix->size() * $this->options->scale;
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// scale the logo and copy it over. done!
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imagecopyresampled($this->image, $im, ($ql - $lw) / 2, ($ql - $lh) / 2, 0, 0, $lw, $lh, $w, $h);
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$imageData = $this->dumpImage();
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if($file !== null){
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$this->saveToFile($imageData, $file);
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}
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if($this->options->imageBase64){
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$imageData = 'data:image/'.$this->options->outputType.';base64,'.base64_encode($imageData);
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}
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return $imageData;
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}
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}
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/**
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* @property int $logoSpaceWidth
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* @property int $logoSpaceHeight
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*/
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class LogoOptions extends QROptions{
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// size in QR modules, multiply with QROptions::$scale for pixel size
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protected int $logoSpaceWidth;
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protected int $logoSpaceHeight;
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}
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$options = new LogoOptions;
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$options->version = 7;
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$options->eccLevel = QRCode::ECC_H;
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$options->imageBase64 = false;
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$options->logoSpaceWidth = 13;
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$options->logoSpaceHeight = 13;
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$options->scale = 5;
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$options->imageTransparent = false;
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header('Content-type: image/png');
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$qrOutputInterface = new QRImageWithLogo($options, (new QRCode($options))->getMatrix('https://www.youtube.com/watch?v=dQw4w9WgXcQ'));
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// dump the output, with an additional logo
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echo $qrOutputInterface->dump(null, __DIR__.'/octocat.png');
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