mirror of
https://github.com/chillerlan/php-qrcode.git
synced 2026-08-17 19:21:05 +00:00
smiley
134 lines
3.3 KiB
PHP
134 lines
3.3 KiB
PHP
<?php
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/**
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* ImageMagick with logo output example
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*
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* @created 28.02.2023
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* @author Smiley <smiley@chillerlan.net>
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* @copyright 2023 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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declare(strict_types=1);
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use chillerlan\QRCode\{QRCode, QRCodeException, QROptions};
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use chillerlan\QRCode\Common\EccLevel;
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use chillerlan\QRCode\Data\QRMatrix;
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use chillerlan\QRCode\Output\QRImagick;
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require_once __DIR__.'/../vendor/autoload.php';
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/*
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* Class definition
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*/
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class QRImagickWithLogo extends QRImagick{
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/**
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* @inheritDoc
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* @throws \chillerlan\QRCode\Output\QRCodeOutputException
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*/
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public function dump(string|null $file = null):string{
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// set returnResource to true to skip further processing for now
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$this->options->returnResource = true;
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// there's no need to save the result of dump() into $this->imagick here
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parent::dump($file);
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// set new logo size, leave a border of 1 module (no proportional resize/centering)
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$size = (($this->options->logoSpaceWidth - 2) * $this->options->scale);
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// logo position: the top left corner of the logo space
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$pos = (($this->moduleCount * $this->options->scale - $size) / 2);
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// invoke logo instance
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$imLogo = new Imagick($this->options->pngLogo);
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$imLogo->resizeImage($size, $size, Imagick::FILTER_LANCZOS, 0.85, true);
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// add the logo to the qrcode
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$this->imagick->compositeImage($imLogo, Imagick::COMPOSITE_BLEND, $pos, $pos);
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// output (retain functionality of the parent class)
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$imageData = $this->imagick->getImageBlob();
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$this->imagick->destroy();
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$this->saveToFile($imageData, $file);
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if($this->options->outputBase64){
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$imageData = $this->toBase64DataURI($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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* augment the QROptions class
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*
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* @property string $pngLogo
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*/
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class ImagickWithLogoOptions extends QROptions{
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protected string $pngLogo;
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/**
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* check logo
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*
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* of course, we could accept other formats too.
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* we're not checking for the file type either for simplicity reasons (assuming PNG)
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*
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* @throws \chillerlan\QRCode\QRCodeException
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*/
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protected function set_pngLogo(string $pngLogo):void{
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if(!file_exists($pngLogo) || !is_file($pngLogo) || !is_readable($pngLogo)){
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throw new QRCodeException('invalid png logo');
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}
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// @todo: validate png
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$this->pngLogo = $pngLogo;
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}
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}
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/*
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* Runtime
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*/
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$options = new ImagickWithLogoOptions;
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$options->pngLogo = __DIR__.'/octocat.png'; // setting from the augmented options
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$options->version = 5;
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$options->outputInterface = QRImagickWithLogo::class; // use the custom output class
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$options->eccLevel = EccLevel::H;
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$options->outputBase64 = false;
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$options->addLogoSpace = true;
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$options->logoSpaceWidth = 15;
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$options->logoSpaceHeight = 15;
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$options->bgColor = '#eee';
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$options->imageTransparent = true;
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$options->scale = 20;
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$options->drawLightModules = false;
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$options->drawCircularModules = true;
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$options->circleRadius = 0.4;
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$options->keepAsSquare = [
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QRMatrix::M_FINDER_DARK,
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QRMatrix::M_FINDER_DOT,
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QRMatrix::M_ALIGNMENT_DARK,
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];
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// dump the output, with an additional logo
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$out = new QRCode($options)->render('https://www.youtube.com/watch?v=dQw4w9WgXcQ');
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header('Content-type: image/png');
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echo $out;
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exit;
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