69 lines
1.7 KiB
PHP
69 lines
1.7 KiB
PHP
<?php
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declare(strict_types = 1);
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namespace BaconQrCode;
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use BaconQrCode\Common\ErrorCorrectionLevel;
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use BaconQrCode\Encoder\Encoder;
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use BaconQrCode\Exception\InvalidArgumentException;
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use BaconQrCode\Renderer\RendererInterface;
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/**
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* QR code writer.
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*/
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final class Writer
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{
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/**
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* Renderer instance.
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*
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* @var RendererInterface
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*/
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private $renderer;
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/**
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* Creates a new writer with a specific renderer.
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*/
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public function __construct(RendererInterface $renderer)
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{
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$this->renderer = $renderer;
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}
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/**
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* Writes QR code and returns it as string.
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*
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* Content is a string which *should* be encoded in UTF-8, in case there are
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* non ASCII-characters present.
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*
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* @throws InvalidArgumentException if the content is empty
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*/
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public function writeString(
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string $content,
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string $encoding = Encoder::DEFAULT_BYTE_MODE_ECODING,
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?ErrorCorrectionLevel $ecLevel = null
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) : string {
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if (strlen($content) === 0) {
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throw new InvalidArgumentException('Found empty contents');
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}
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if (null === $ecLevel) {
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$ecLevel = ErrorCorrectionLevel::L();
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}
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return $this->renderer->render(Encoder::encode($content, $ecLevel, $encoding));
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}
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/**
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* Writes QR code to a file.
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*
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* @see Writer::writeString()
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*/
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public function writeFile(
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string $content,
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string $filename,
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string $encoding = Encoder::DEFAULT_BYTE_MODE_ECODING,
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?ErrorCorrectionLevel $ecLevel = null
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) : void {
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file_put_contents($filename, $this->writeString($content, $encoding, $ecLevel));
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}
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}
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