mirror of
https://github.com/Part-DB/Part-DB-server.git
synced 2025-06-20 17:15:51 +02:00
97 lines
No EOL
3.3 KiB
PHP
97 lines
No EOL
3.3 KiB
PHP
<?php
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/*
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* This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
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*
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* Copyright (C) 2019 - 2023 Jan Böhmer (https://github.com/jbtronics)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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declare(strict_types=1);
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namespace App\Services\LabelSystem\Barcodes;
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use App\Entity\LabelSystem\BarcodeType;
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use Com\Tecnick\Barcode\Barcode;
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/**
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* This function is used to generate barcodes of various types using arbitrary (text) content.
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* @see \App\Tests\Services\LabelSystem\Barcodes\BarcodeHelperTest
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*/
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class BarcodeHelper
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{
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/**
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* Generates a barcode with the given content and type and returns it as SVG string.
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* @param string $content
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* @param BarcodeType $type
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* @return string
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*/
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public function barcodeAsSVG(string $content, BarcodeType $type): string
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{
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$barcode = new Barcode();
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$type_str = match ($type) {
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BarcodeType::NONE => throw new \InvalidArgumentException('Barcode type must not be NONE! This would make no sense...'),
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BarcodeType::QR => 'QRCODE',
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BarcodeType::DATAMATRIX => 'DATAMATRIX',
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BarcodeType::CODE39 => 'C39',
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BarcodeType::CODE93 => 'C93',
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BarcodeType::CODE128 => 'C128A',
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};
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return $barcode->getBarcodeObj($type_str, $content)->getSvgCode();
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}
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/**
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* Generates a barcode with the given content and type and returns it as HTML image tag.
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* @param string $content
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* @param BarcodeType $type
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* @param string $width Width of the image tag
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* @param string|null $alt_text The alt text of the image tag. If null, the content is used.
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* @return string
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*/
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public function barcodeAsHTML(string $content, BarcodeType $type, string $width = '100%', ?string $alt_text = null): string
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{
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$svg = $this->barcodeAsSVG($content, $type);
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$base64 = $this->dataUri($svg, 'image/svg+xml');
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$alt_text ??= $content;
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return '<img src="'.$base64.'" width="'.$width.'" style="min-height: 25px;" alt="'.$alt_text.'"/>';
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}
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/**
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* Creates a data URI (RFC 2397).
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* Based on the Twig implementation from HTMLExtension
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*
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* Length validation is not performed on purpose, validation should
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* be done before calling this filter.
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*
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* @return string The generated data URI
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*/
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private function dataUri(string $data, string $mime): string
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{
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$repr = 'data:';
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$repr .= $mime;
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if (str_starts_with($mime, 'text/')) {
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$repr .= ','.rawurlencode($data);
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} else {
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$repr .= ';base64,'.base64_encode($data);
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}
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return $repr;
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}
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} |